WO2023232105A1 - 家用电器 - Google Patents

家用电器 Download PDF

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Publication number
WO2023232105A1
WO2023232105A1 PCT/CN2023/097764 CN2023097764W WO2023232105A1 WO 2023232105 A1 WO2023232105 A1 WO 2023232105A1 CN 2023097764 W CN2023097764 W CN 2023097764W WO 2023232105 A1 WO2023232105 A1 WO 2023232105A1
Authority
WO
WIPO (PCT)
Prior art keywords
driving
arm
driving lever
door
lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/097764
Other languages
English (en)
French (fr)
Inventor
位帅帅
吴延岐
朱新朝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202221380557.9U external-priority patent/CN217681149U/zh
Priority claimed from CN202221392217.8U external-priority patent/CN217681152U/zh
Application filed by Midea Group Co Ltd, Guangdong Midea Kitchen Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Priority to JP2024545134A priority Critical patent/JP7820536B2/ja
Priority to EP23815282.1A priority patent/EP4365395A4/en
Priority to US18/689,429 priority patent/US12590485B2/en
Priority to AU2023281744A priority patent/AU2023281744B2/en
Publication of WO2023232105A1 publication Critical patent/WO2023232105A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • E05F5/027—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops with closing action
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0041—Damping means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/02—Automatic catches, i.e. released by pull or pressure on the wing
    • E05C19/024—Automatic catches, i.e. released by pull or pressure on the wing with a bifurcated latch
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • E05F1/1253—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring
    • E05F1/1261—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/022—Latches
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/6414—Aspects relating to the door of the microwave heating apparatus
    • H05B6/6417—Door interlocks of the microwave heating apparatus and related circuits
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons
    • E05B15/0205—Striking-plates, keepers, staples
    • E05B2015/023—Keeper shape
    • E05B2015/0235—Stud-like
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0448—Units of springs; Two or more springs working together
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0493—Overcenter springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0052—Locks mounted on the "frame" cooperating with means on the "wing"
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/47—Springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/60—Mounting or coupling members; Accessories therefor
    • E05Y2600/626—Plates or brackets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/308—Application of doors, windows, wings or fittings thereof for domestic appliances for ovens

Definitions

  • the present application relates to the field of electrical appliance technology, and in particular to a household appliance.
  • a household appliance may include a cavity and a door, the cavity is provided with a chamber, and the door is rotatably connected to the cavity to open or close the cavity.
  • household appliances are equipped with a slow door closing interlocking structure.
  • the slow door closing interlocking structure includes a driving spring.
  • the driving spring provides an acceleration force to the door body through a driving lever when closing the door. Therefore, it is necessary to provide a solution for designing the driving force of the driving spring.
  • An embodiment of the present application provides a household appliance.
  • a household appliance according to the first aspect of the present application includes:
  • Door body the door body is rotatably connected to the bracket, and the door body has a door hook;
  • Buffer assembly installed on the bracket, the buffer assembly includes a first driving elastic member, a second driving elastic member, a damper and a driving lever, the damper is movably connected to the driving lever, and the driving lever A connecting portion is provided, and the first driving elastic member and the second driving elastic member are connected to the connecting portion,
  • the angle between the first driving elastic member and the first connecting line is selected from the range of 0 degrees to 60 degrees
  • the second The angle between the driving elastic member and the second connecting line is selected from the range of 0 degrees to 60 degrees.
  • the first connecting line is the first connection formed between the first driving elastic member and the connecting portion and the first connecting line.
  • the connection between the rotation center of the driving lever, the second connection is the connection between the second connection formed by the second driving elastic member and the connecting portion and the rotation center of the driving lever;
  • the angle between the first driving elastic member and the second driving elastic member is selected from the range of 7 degrees to 110 degrees.
  • the resultant force of the first driving elastic member and the second driving elastic member is located above the rotation center of the driving lever
  • the tangential component of the first driving elastic member when the door is opened, provides the driving lever with a torque to rotate in the first direction, and the second driving elastic member The tangential component of the member provides the driving lever with a torque to rotate in a second direction, the first direction being opposite to the second direction, and the torque provided by the first driving elastic member is greater than the second direction.
  • the torque provided by the driving elastic member when the door is opened, the tangential component of the first driving elastic member provides the driving lever with a torque to rotate in the first direction, and the second driving elastic member The tangential component of the member provides the driving lever with a torque to rotate in a second direction, the first direction being opposite to the second direction, and the torque provided by the first driving elastic member is greater than the second direction. The torque provided by the driving elastic member.
  • the tangential component of the first driving elastic member when the door is closed, provides the driving lever with a torque to rotate in the second direction, and the second driving elastic member The tangential component of the member provides the driving lever with a torque to rotate in the second direction, and the torque provided by the second driving elastic member is greater than the torque provided by the first driving elastic member.
  • the buffer assembly further includes a rotating lever, a switch is provided on the bracket, and the rotating lever is rotatably connected to the bracket,
  • the rotating lever includes a rotating arm and a contact arm, the rotating arm is rotationally connected to the bracket, the contact arm is connected to the rotating arm, the bracket is provided with a slot, and the contact arm Located at least partially within the slot, the contact arm is used to trigger the switch.
  • the driving lever includes a first arm and a second arm spaced apart. During the door closing process, the door hook passes under the second arm and contacts the first arm. abut to drive the driving lever to rotate,
  • the contact arm is provided with a protruding pillar
  • the first arm is provided with a notch, and during the closing process of the door body, the first arm uses the notch to avoid the protruding column.
  • the bracket is further provided with a block that blocks at least a portion of the rotating arm.
  • the end of the door hook has a first guide surface
  • the driving lever includes a first arm and a second arm spaced apart.
  • the side of the second arm has a second guide surface.
  • a second embodiment of the present application provides a household appliance.
  • a household appliance including:
  • Door body the door body has a door hook
  • the door body is rotatably connected to the bracket;
  • Buffer assembly installed on the bracket, the buffer assembly includes a returnable damper and a driving lever, the driving lever is rotationally connected to the bracket, the damper includes a body and a rod, the body is fixed on the The bracket, the rod is movably connected to the body,
  • a recoverable damper is used.
  • the damper and the driving lever are no longer linked.
  • the pendulum block can be omitted, reducing the use of parts and simplifying the movement process.
  • the bracket is provided with a receiving groove, and the body is at least partially fixed in the receiving groove.
  • a limiting post is provided on the bracket. When the door body is closed, the limiting post abuts the driving lever and limits the rotation of the driving lever.
  • the buffer assembly further includes a rotating lever, a switch is provided on the bracket, and the rotating lever is rotatably connected to the bracket,
  • the rotating lever includes a rotating arm and a contact arm, the rotating arm is rotationally connected to the bracket, the contact arm is connected to the rotating arm, the bracket is provided with a slot, and the contact arm Located at least partially within the slot, the contact arm is used to trigger the switch.
  • the driving lever includes a first arm and a second arm spaced apart. During the door closing process, the door hook passes under the second arm and contacts the first arm. abut to drive the driving lever to rotate,
  • the contact arm is provided with a protruding pillar
  • the first arm is provided with a notch, and during the closing process of the door body, the first arm uses the notch to avoid the protruding column.
  • the bracket is further provided with a block that blocks at least a portion of the rotating arm.
  • the top surface of the stopper includes an inclined surface, and the inclined surface is used to guide the door hook to abut against the contact arm during the closing process of the door body.
  • the door hook includes a lower door hook, a first switch is provided on the bracket, and the switch includes a second switch and a third switch,
  • the buffer assembly is configured such that during the door closing process, the driving lever is driven by the lower door hook to first trigger the first switch, and the rotating lever is driven by the lower door hook. When driven, the second switch is triggered again, and then the third switch is triggered.
  • the end of the door hook has a first guide surface
  • the driving lever includes a first arm and a second arm spaced apart.
  • the side of the second arm has a second guide surface.
  • FIGS 1 to 4 are schematic structural diagrams of household appliances according to embodiments of the present application.
  • Figures 5 to 6 are schematic diagrams of the assembly of the bracket and the rotating lever according to the embodiment of the present application.
  • Figure 7 is an exploded schematic diagram of a household appliance according to an embodiment of the present application.
  • FIGS. 8 to 10 are partial structural schematic diagrams of household appliances according to embodiments of the present application.
  • Figure 11 is a partially exploded schematic diagram of a household appliance according to an embodiment of the present application.
  • Figures 12 to 13 are assembly diagrams of the door hook and door body according to the embodiment of the present application.
  • Figures 14 to 16 are schematic structural diagrams of the pendulum block according to the embodiment of the present application.
  • Figures 17 to 21 are structural schematic diagrams of the protective cover according to the embodiment of the present application, wherein Figure 18 is a cross-sectional view along line A-A in Figure 17;
  • Figures 22 to 27 are structural schematic diagrams of the door hook according to the embodiment of the present application, wherein Figure 23 is a cross-sectional view along line B-B in Figure 22;
  • Figures 28 to 33 are schematic structural views of the stent according to the embodiment of the present application, wherein Figure 29 is a cross-sectional view along line C-C in Figure 28;
  • Figures 34 to 39 are schematic structural views of the driving lever according to the embodiment of the present application, wherein Figure 35 is a cross-sectional view along line D-D in Figure 34;
  • Figures 40 to 41 are schematic structural diagrams of the inclined block according to the embodiment of the present application.
  • Figures 42 to 45 are structural schematic diagrams of the rotating lever according to the embodiment of the present application.
  • 46 to 49 are schematic diagrams of the closing process of the household appliance according to the embodiment of the present application.
  • 50 to 51 are schematic diagrams of the force-bearing state of the driving elastic member during the closing process of the household appliance according to the embodiment of the present application;
  • Figures 52 to 55 are schematic diagrams of the second closing process of the household appliance according to the embodiment of the present application.
  • Figure 56 is a schematic diagram of the force-bearing state of the driving elastic member during the second closing process of the household appliance according to the embodiment of the present application;
  • Figures 57 to 59 are schematic diagrams of the third closing process of the household appliance according to the embodiment of the present application.
  • Figure 60 is a schematic diagram of the force-bearing state of the driving elastic member during the third closing process of the household appliance according to the embodiment of the present application.
  • Figure 61 is a length change diagram of the first driving elastic member during the closing process of the embodiment of the present application.
  • Figure 62 is a length change diagram of the second driving elastic member during the door closing process according to the embodiment of the present application.
  • Figures 63 to 65 are schematic diagrams of the closed state of the household appliance according to the embodiment of the present application.
  • Figures 66 to 68 are schematic diagrams of the door opening process of the household appliance according to the embodiment of the present application.
  • Figure 69 is a schematic diagram of the state after abnormal triggering of the driving lever according to the embodiment of the present application.
  • Figures 70 to 73 are partial structural schematic diagrams of household appliances according to embodiments of the present application.
  • Figure 74 is an exploded schematic diagram of a household appliance according to an embodiment of the present application.
  • FIGS. 75 to 77 are partial structural schematic diagrams of household appliances according to embodiments of the present application.
  • Figures 78 to 82 are schematic structural views of the protective cover according to the embodiment of the present application, wherein Figure 79 is a cross-sectional view along line A-A in Figure 78;
  • Figures 83 to 88 are schematic structural views of the stent according to the embodiment of the present application, wherein Figure 84 is a cross-sectional view along line C-C in Figure 83;
  • Figures 89 to 94 are structural schematic diagrams of the driving lever according to the embodiment of the present application, wherein Figure 90 is a cross-sectional view along line D-D in Figure 89;
  • FIGs 95 to 97 are schematic diagrams of the door-closing state of the household appliance (dual-driven elastic members) according to the embodiment of the present application.
  • Figure 98 is a schematic diagram of the state after abnormal triggering of the driving lever according to the embodiment of the present application.
  • Figures 99 to 100 are partial structural schematic diagrams of household appliances according to embodiments of the present application.
  • Figure 101 is a schematic diagram of the door closing state of the household appliance (single driven elastic member) according to the embodiment of the present application.
  • a household appliance 100 includes a door 12 , a bracket 14 and a buffer assembly 16 .
  • the door body 12 has a door hook.
  • the door body 12 is rotatably connected to the bracket 14 .
  • the buffer component 16 is installed on the bracket 14.
  • the buffer component 16 includes a first driving elastic member. 60.
  • the damper 18 is movably connected to the driving lever 20.
  • the driving lever 20 is provided with a connecting portion 70.
  • the first driving elastic member 60 and the second driving elastic member 64 Connect the connection part 70 .
  • the angle T1 between the first driving elastic member 60 and the first connecting line L1 is selected from the range of 0 degrees to 60 degrees
  • the second driving elastic member 64 and The angle T2 between the second connecting line L2 is selected from the range of 0 degrees to 60 degrees.
  • the first connecting line L1 is between the first connection formed by the first driving elastic member 60 and the connecting portion 70 and the rotation center of the driving lever 20
  • the second connection line L2 is the connection line between the second connection point formed by the second driving elastic member 64 and the connecting portion 70 and the rotation center of the driving lever 20 .
  • the door hook contacts the drive lever 20 to squeeze the damper 18 .
  • the door 12 when the door 12 is opened, by setting the angle range between the first driving elastic member 60 and the second driving elastic member 64 and the target connection line, the door 12 is closed during the closing process.
  • the two driving elastic members can provide appropriate driving force, and the door body 12 can be closed smoothly.
  • the household appliances 100 include but are not limited to microwave ovens, ovens (including electric ovens, microwave ovens and all-in-one steamers and ovens), steamers, dishwashers, disinfection cabinets and other household appliances 100 having doors 12 .
  • the embodiment of the present application is explained by taking the household appliance 100 as a microwave oven as an example.
  • the purpose of taking the household appliance 100 as a microwave oven as an example is to facilitate understanding of the implementation of the present application and should not be understood as a limitation of the present application.
  • the door body 12 can be made of double-layer glass; the door body 12 can also be made of anti-wave leakage glass.
  • One of the benefits of using the glass door body 12 is that it is convenient for the user to observe the food inside the household appliance 100 from the outside.
  • a handle can be provided on the outer surface of the door body 12 to facilitate the user to open and close the door.
  • the materials of the door hook can be all selected from metal materials or plastic materials, or made of a combination of different materials.
  • the door hook is in the shape of a long strip as a whole, and a hook portion 86 is provided at the end of the door hook.
  • the hook portion 86 can be easily engaged.
  • the number of door hooks can be set according to the actual situation.
  • the number of door hooks can be one, two, or more than two.
  • the door hook includes two door hooks, namely an upper door hook 26 and a lower door hook 28, as shown in Figures 12 and 13.
  • the upper door hook 26 and the lower door hook 28 may be connected to form an integrated structural member and fixed on the door body 12 .
  • the upper door hook 26 and the lower door hook 28 may be separately fixed on the door body 12 , and the door hook may also be movably connected to the door body 12 .
  • the lower door hook 28 mainly receives the buffering force of the buffer assembly 16 to reduce closing noise. That is, when the door body 12 is closed, the lower door hook 28 resists the driving lever 20 to squeeze the damper 18 . When the door body 12 is opened, the lower door hook 28 is separated from the driving lever 20, and the length of the damper 18 is the longest.
  • the upper door hook 26 can also receive the buffering force of the buffer assembly 16 to reduce the closing noise, or both the upper door hook 26 and the lower door hook 28 can receive the buffering force of the buffer assembly 16 to reduce the closing noise. No specific limitation is made. In the following embodiments, the lower door hook 28 receives the buffer force of the buffer assembly 16 as an example for description.
  • the household appliance 100 also includes a ramp block 30 and a compression spring 32.
  • the ramp block 30 and the compression spring 32 are installed on the bracket 14.
  • a receiving space is provided in the ramp block 30.
  • the spring 32 is partially accommodated in the receiving space, the top of the compression spring 32 contacts the top wall of the receiving space, and the bottom of the compression spring 32 contacts the support member on the bracket 14 that extends into the receiving space.
  • the top of the inclined block 30 has an inclined surface 74 , and the inclined surface 74 slopes upward along the vertical direction toward the inside of the bracket 14 .
  • the upper door hook 26 presses the inclined block 30 and moves downward, and the upper door hook 26 moves outward until it is completely disengaged.
  • the compression spring 32 resets the ramp block 30.
  • the opening of the door 12 in the embodiment of the present application may mean that when the door 12 is opened, the lower door hook 28 does not exert a force on the driving lever 20 to rotate the driving lever 20, or the force exerted is not enough to allow the driving lever 20 to rotate.
  • the rotating state of the lever 20 is shown in Figures 1 to 4.
  • the household appliance 100 may include a cavity (not shown), the bracket 14 may be fixed in the cavity, and the door 12 is rotatably connected to the cavity.
  • the cavity is provided with a chamber, the front side of the chamber has an opening, and the door 12 is used to close and open the opening. Food to be heated can be placed in the chamber.
  • the damper 18 includes a body 22 and a rod 24.
  • the body 22 is rotatably installed on the bracket 14.
  • the rod 24 is movably connected to the body 22. During the opening and closing process of the door 12, the body 22 and the rod 24 can rotate. To adapt to the rotation of the driving lever 20. It can be understood that in other embodiments, the body 22 can also be fixed and not rotate.
  • the buffer assembly 16 also includes a pendulum block 34, which is rotatably connected to the driving lever 20 and the damper 18.
  • the driving lever 20 rotates by a preset value. After the angle, the swing block 34 is driven to compress the damper 18.
  • the damper 18 When the damper 18 is compressed, it provides damping to the lower door hook 28 and rotates. In this way, when the lower door hook 28 exerts force on the driving lever 20, the driving lever 20 can first rotate a preset angle and then drive the pendulum block 34 to compress the damper 18, thereby achieving the initial stage of the lower door hook 28 acting on the driving lever 20.
  • the lower door hook 28 will not be rebounded by the damper 18, causing the door to close unsmoothly or even stagnantly, thereby improving the user experience.
  • the driving lever 20 is provided with an accommodating groove 35.
  • the top of the accommodating groove 35 is provided with a rotation space 37.
  • the bottom of the accommodating groove 35 is provided with a swing space 39.
  • One end of the swing block 34 rotates. It is accommodated in the rotation space 37, and the other end of the pendulum block 34 is accommodated in the swing space 39.
  • the swing space 39 is used to provide driving force.
  • the moving lever 20 rotates the space of the preset angle. In this way, the driving lever 20 can drive the pendulum block 34 to rotate after rotating through the preset angle.
  • the driving lever 20 includes a spaced first arm 52 and a second arm 54.
  • a space is formed between the first arm 52 and the second arm 54.
  • the second arm 54 is closer to the door body 12 (door hook) than the first arm 52. , relative to the rotation axis of the driving lever 20 , the second arm 54 is shorter than the first arm 52 .
  • the first arm 52 is provided with an accommodating groove 35 .
  • the first arm 52 is provided with an accommodating groove 35 on the right side, and the swing block 34 is located in the accommodating groove 35 .
  • the top end of the pendulum block 34 has a connecting and rotating part 41 , and the connecting and rotating part 41 is rotatably received in the rotating space 37 .
  • the rotation space 37 is substantially cylindrical
  • the connecting rotation portion 41 is in a cylindrical shape matching the rotation space 37 .
  • the setting of the swing space 39 can prevent the swing block 34 from acting on the swing block 34 when the driving lever 20 first starts to rotate, and thus the damper 18 will not be compressed, so that the lower door hook 28 will not be affected by the damper 18 in the initial stage of contact with the driving lever 20
  • the resistance causes rebound or even stagnation.
  • the size of the swing space 39 can determine the size of the preset angle, which can be calibrated according to the actual situation.
  • a protrusion 43 is provided on the right side of the swing space 39 , and the protrusion 43 is used to limit the pendulum block 34 in the accommodating groove 35 to prevent the pendulum block 34 from falling out of the accommodating groove 35 .
  • the top of the pendulum block 34 is also provided with a slot 45.
  • the rod 24 of the damper 18 passes through the slot 45 to be rotationally connected with the pendulum block 34.
  • the slot 45 can be provided during the rotation of the damper 18. , to avoid the rod 24.
  • the lower door hook 28 pushes the driving lever 20 to rotate counterclockwise. After the driving lever 20 rotates a preset angle (the gap between the driving lever 20 and the pendulum block 34 is eliminated), the The swing block 34 applies force to the rod 24 to push the rod 24 to move into the body 22.
  • the body 22 provides a damping force to the rod 24, reducing the closing speed of the door 12, thereby reducing closing noise.
  • the lower door hook 28 drives the driving lever 20 to rotate clockwise.
  • the driving lever 20 can drive the rod 24 to move through the swing block 34.
  • the rod 24 is driven by the body 22 to extend. out of the body 22 until the driving lever 20 stops rotating and the damper 18 returns to the initial state.
  • a limiting post 38 is provided on the bracket 14 .
  • the limiting post 38 abuts the driving lever 20 and limits the rotation of the driving lever 20 . In this way, the rotation range of the driving lever 20 can be limited to prevent damage to the driving lever 20 .
  • the position of the limiting post 38 is set so that the rotation of the driving lever 20 does not exceed the position of the limiting post 38 .
  • This position is the position to which the drive lever 20 rotates after closing the door.
  • the household appliance 100 in the embodiment of the present application includes two driving elastic parts: a first driving elastic part 60 and a second driving elastic part 64.
  • the two driving elastic parts and the driving lever 20 are respectively located on opposite sides of the bracket 14.
  • the driving lever 20 is located on the same side of bracket 14 as damper 18.
  • the bracket 14 is provided with a through hole 66, as shown in Figures 32 to 33.
  • the connecting part 70 passes through the through hole 66, so that the connecting part 70 can be connected with two driving elastic parts, and the two driving elastic parts can be used to drive the driving lever 20 to accelerate. Rotate so that the driving lever 20 drives the door body 12 to accelerate. In this way, the process of first accelerating and then decelerating the lower door hook 28 (door body 12) can be realized.
  • the included angle T1 between the first driving elastic member 60 and the first connecting line L1 is selected from the range of 0 degrees to 60 degrees.
  • the included angle T1 can be 0 degrees or 20 degrees. degrees, 30 degrees, 40 degrees, 50 degrees or 60 degrees, or any other degree between 0 and 60 degrees.
  • the included angle T2 between the second driving elastic member 64 and the second connection line L2 is selected from the range of 0 degrees to 60 degrees.
  • the included angle T2 can be 0 degrees, 20 degrees, 30 degrees, 40 degrees, or 50 degrees. degrees or 60 degrees, or any other degree between 0 degrees and 60 degrees.
  • the included angle T1 and the included angle T2 may be the same or different. Because the position and angle of the driving elastic part before closing the door determine the position and angle of the two driving elastic parts after closing the door.
  • the angles and positions of the two driving elastic parts can change adaptively following the rotation of the driving lever 20. As long as the rotation angle of the driving lever 20 is determined, the final position and angle of the two driving elastic parts after closing the door can be determined. Therefore, by setting the angle between the two driving elastic parts and the target connection line when the door body 12 is open, the position and angle of the two driving elastic parts before closing the door can be determined.
  • the specific structure of the driving elastic member is a spring.
  • the driving elastic member may also be an elastic member of other structures, and is not limited to a spring.
  • the driving elastic members and driving levers 20 located on opposite sides of the bracket 14 can disperse the relevant structural parts to avoid space reduction and excessive weight concentration caused by too many structural parts on the same side of the bracket 14, which is not conducive to the arrangement of structural parts.
  • the driving lever 20 can drive the lower door hook 28 to accelerate, the door 12 can be closed by relying on the force of the driving lever 20 during the acceleration phase.
  • the damper 18 is compressed.
  • the driving lever 20 continues to compress the rod 24 of the damper 18.
  • the compression amount of the damper 18 increases, and the damping force provided by the damper 18 also increases.
  • the damping force provided by the damper 18 is greater than that provided by the driving elastic member,
  • the driving force is increased, the lower door hook 28 begins to decelerate. During the deceleration stage, the noise when the door body 12 is closed is not too loud.
  • the first driving elastic member 60 is located above the second driving elastic member 64 . Referring to FIG. 3 and FIG. 32 , one end of the first driving elastic member 60 hooks the positioning post 68 on the bracket 14 , and the other end hooks the connecting portion 70 on the driving lever 20 . One end of the second driving elastic member 64 hooks the other positioning post 68 on the bracket 14 , and the other end hooks the connecting portion 70 .
  • the angle T3 between the first driving elastic member 60 and the second driving elastic member 64 is selected from the range of 7 degrees to 110 degrees. In this way, the angle settings of the two driving elastic members can be easily determined.
  • the angle between the other driving elastic member and the target connection line can be determined. angle.
  • the included angle T3 between the first driving elastic member 60 and the second driving elastic member 64 is selected from the range of 7 degrees to 110 degrees.
  • the included angle T3 can be 7 degrees, 10 degrees, 30 degrees, 50 degrees, 70 degrees, 90 degrees or 110 degrees, or any other degree between 7 and 110 degrees.
  • the driving lever 20 can be rotated in different directions before closing the door and when closing the door, which is beneficial to achieving tight closing of the door.
  • the resultant force F of the two driving elastic parts on the driving lever 20 is located above the rotation center O of the driving lever 20.
  • the driving lever 20 can rotate in the first direction under the effect of the resultant force of the two driving elastic parts.
  • the resultant force F of the two driving elastic parts on the driving lever 20 is located below the rotation center O of the driving lever 20.
  • the driving lever 20 can rotate in the second direction under the action of the resultant force F of the two driving elastic parts.
  • the first direction is opposite to the second direction. In FIG. 51 , the first direction is counterclockwise, and in FIG. 60 , the second direction is clockwise.
  • the driving lever 20 When the lower door hook 28 has not yet contacted the driving lever 20, the driving lever 20 is stationary, and the resultant force F of the two driving elastic members acts on the driving lever 20, so that the driving lever 20 can rotate clockwise.
  • the driving lever 20 rotates counterclockwise under the action of the lower door hook 28, so that the resultant force F of the two driving elastic members on the driving lever 20 switches to below the rotation center O of the driving lever 20.
  • the driving lever 20 switches from clockwise rotation to counterclockwise rotation. At this time, the driving lever 20 is not limited. Under the action of the resultant force F of the two driving elastic members, the driving lever 20 continues to rotate counterclockwise and drives the lower door hook 28 to accelerate.
  • the driving lever 20 has a rotation direction conversion process, which causes the driving lever 20 to rotate at a larger angle.
  • the larger rotation angle of the driving lever 20 can drive the lower door hook 28 deeper into the cavity, thereby making the door 12 close more tightly. .
  • the tangential force component F1 of the first driving elastic member 60 provides the driving lever 20 with a torque to rotate in the first direction
  • the tangential force component F1 of the second driving elastic member 64 The component force F2 provides the driving lever 20 with a torque to rotate in the second direction.
  • the first direction is opposite to the second direction.
  • the torque provided by the first driving elastic member 60 is greater than the torque provided by the second driving elastic member 64 . In this way, the driving lever 20 can be rotated in the first direction.
  • Figure 51 Please refer to Figure 51.
  • the first direction is counterclockwise and the second direction is clockwise.
  • the resultant force F of the two driving elastic members is located above the rotation center O of the driving lever 20, so that the rotating lever 20 can rotate counterclockwise.
  • the tangential force component F1 of the first driving elastic member 60 provides a counterclockwise rotation torque to the driving lever 20
  • the tangential force component F2 of the second driving elastic member 64 provides a clockwise rotation to the driving lever 20.
  • the torque provided by the first driving elastic member 60 is greater than the torque provided by the second driving elastic member 64. Therefore, the driving lever 20 can rotate counterclockwise.
  • the tangential force component F1 of the first driving elastic member 60 provides the driving lever 20 with a torque to rotate in the second direction
  • the tangential force component F1 of the second driving elastic member 64 The component force F2 provides the driving lever 20 with a torque to rotate in the second direction, and the torque provided by the second driving elastic member 64 is greater than the torque provided by the first driving elastic member 60 . In this way, the door body 12 can be closed tightly.
  • the second direction is clockwise.
  • the torque provided by the two driving elastic members can cause the driving lever 20 to rotate clockwise, so that the driving lever 20 can drive the door body 12 through the lower door hook 28. Close more tightly.
  • the closing process can be divided into three processes: closing process one, closing process two and closing process three.
  • Closing process two the lower door hook 28 is driven by the driving lever 20 to move into the bracket 12 (it can be understood as “the lower door hook 28 is sucked in by the driving lever 20").
  • the resultant force F of the two driving elastic members is located below the rotation center O of the driving lever 20, and both driving elastic members are located below the rotation center O of the driving lever 20.
  • the two driving elastic members All parts allow the drive lever 20 to rotate clockwise.
  • the tangential component forces provided by the two driving elastic members are relatively small, and thus the torque provided to the driving lever 20 is small.
  • the length of the first driving elastic member 60 first becomes longer and then becomes shorter during the process of closing the door from the first to the second process, and the elastic force first increases and then decreases.
  • the length of the second driving elastic member 64 keeps getting smaller, and the elastic force also gets smaller. In this process, the second driving elastic member 64 contributes the main torque.
  • Closing process three the lower door hook 28 starts to push the rotating lever 20 to rotate.
  • Figures 61 to 62 Please refer to Figures 61 to 62. It can be seen from the figures that the length changes of the two driving elastic members are small. During the entire movement, the length can also be approximately regarded as unchanged, but the direction of the force is changing.
  • Figure 61 shows the change in length of the first driving elastic member 60.
  • the radius of the middle circle is the length of the first driving elastic member 60 when the door 12 is opened.
  • the radius of the outermost circle is the length of the first driving elastic member 60 when the door 12 is closed.
  • the length of the elastic member 60 and the radius of the innermost ring are the length of the first driving elastic member 60 when the door body 12 is closed.
  • Figure 62 shows the change in length of the second driving elastic member 64, where the radius of the outer ring is the length of the second driving elastic member 64 when the door 12 is opened, and the radius of the inner ring is the length of the second driving elastic member 64 when the door 12 is closed. length.
  • the buffer assembly 16 also includes a rotating lever 40 .
  • a switch is provided on the bracket 14 .
  • the rotating lever 40 is rotationally connected to the bracket 14 . When the door body 12 is closed, the door hook resists the rotating lever. 40 so that turning the lever 40 triggers the switch. In this way, adding the rotating lever 40 can, on the one hand, meet the safety requirements, and on the other hand, further reduce the door closing noise.
  • some household appliances 100 require the door 12 to be closed before the household appliance 100 can be allowed to operate.
  • the door 12 needs to be closed before the microwave can be allowed to emit microwaves into the cavity to heat food, so as to prevent wave leakage due to the door not being closed properly.
  • the lower door hook 28 resists the rotating lever 40 so that the rotating lever 40 triggers the switch, so that the control panel of the household appliance 100 obtains the relevant trigger signal, and then controls the operation of the household appliance 100 to meet safety regulations. .
  • the lower door hook 28 is close to the rotating lever 40.
  • the rotating lever 40 can be driven to rotate clockwise.
  • the lower door hook 28 and the door can be aligned.
  • the body 12 decelerates, thereby further reducing door closing noise.
  • the rotation lever 40 includes a rotation arm 42 and a contact arm 44.
  • the rotation arm 42 is rotationally connected to the bracket 14, and the contact arm 44 is connected to the rotation arm 42.
  • the bracket 14 is provided with a slot 46, the contact arm 44 is at least partially located in the slot 46, and the contact arm 44 is used to trigger the switch. In this way, the rotating lever 40 can be protected from being triggered artificially and meets safety regulations.
  • the contact arm 44 is away from the rotation axis of the rotating arm 42.
  • the lower door hook 28 can extend into the bracket 14 through the lower through hole 48 of the front plate 51 of the connecting bracket 14 and push the contact arm 44 to rotate. , thereby driving the entire rotating lever 40 to rotate.
  • the contact arm 44 is at least partially located in the slot 46, which can prevent external thin rods and other objects from extending into the bracket 14 from the lower through hole 48 to push the contact arm 44 to rotate and trigger the switch artificially, causing the household appliance 100 to mistakenly think that the door 12 has been opened. Close it properly, and then start the safety problem caused by it.
  • the protective cover 36 is also provided with a bump 50 on the inside.
  • the shape of the bump 50 matches the shape of the slot 46 to surround the contact arm 44, further ensuring that the contact arm 44 will not be accidentally triggered.
  • the rotation of the contact arm 44 can also be made more stable.
  • the driving lever 20 includes a first arm 52 and a second arm 54 spaced apart.
  • the door hook passes under the second arm 54 and then connects with the second arm 54 .
  • the first arm 52 contacts to drive the driving lever 20 to rotate.
  • the contact arm 44 is provided with a protruding post 56 and the first arm 52 is provided with a notch 58.
  • the first arm 52 avoids the protruding post 56 through the notch 58. . In this way, it can be ensured that the contact arm 44 of the rotating lever 40 can pass smoothly without interference.
  • the first arm 52 and the second arm 54 are both located on the left side of the boss 56 .
  • the first arm 52 is longer.
  • the lower door hook 28 first passes under the second arm 54 and then enters the space between the first arm 52 and the second arm 54 . Then the lower door hook 28 It contacts the first arm 52 to drive the rotating lever to rotate counterclockwise.
  • the second arm 54 blocks the lower door hook 28, so that the driving lever 20 drives the lower door hook 28 to continue closing the door.
  • the first arm 52 faces toward The protruding column 56 rotates in the direction, and the gap 58 is provided so that when the first arm 52 passes by, the first arm 52 and the protruding column 56 do not interfere, so that the lower door hook 28 can contact the protruding column 56 and drive the rotating lever 40 to rotate clockwise. , the door 12 can be closed smoothly, and the switch can be triggered smoothly. After the door body 12 is closed, the end of the lower door hook 28 and the protruding column 56 are located in the space between the first arm 52 and the second arm 54, as shown in Figure 65.
  • the bracket 14 is also provided with a stopper 72 , and the stopper 72 blocks at least a part of the rotating arm 42 . In this way, the rotating lever 40 can be protected from being triggered artificially and meets the safety regulations.
  • the lower door hook 28 can extend into the bracket 14 through the lower through hole 48 on the bracket 14, and push the contact arm 44 to rotate, thereby driving the entire rotating lever 40 to rotate.
  • the stopper 72 which blocks at least part of the rotating arm 42 , it is possible to prevent external thin rods and other objects from extending into the bracket 14 from the lower through hole 48 to push the rotating arm 42 to rotate and trigger the switch artificially, causing the household appliance 100 to malfunction. It is considered that the door 12 has been closed, and then the safety problem caused by starting.
  • Another stopper 72 is provided on the inside of the protective cover 36.
  • the shape of the stopper 72 on the bracket 14 matches the shape of the stopper 72 on the protective cover 36 to fully block the rotating arm 42. , further ensuring that the rotating arm 42 will not be accidentally triggered.
  • the stopper 72 on the bracket 14 can completely block the rotating arm 42 .
  • the top surface of the stopper 72 includes an inclined surface 74 , which is used to guide the door hook to contact the contact arm 44 during the closing process of the door body 12 . In this way, it can be ensured that the door hook will enter the normal position and contact the rotating lever 40 during the closing process of the door body 12 .
  • the lower door hook 28 moves close to the rotating lever 40 .
  • the inclined surface 74 moves the lower door hook 28
  • the end guide contact arm 44 enables the lower door hook 28 to contact the boss 56 of the contact arm 44.
  • the lower door hook 28 drives the rotating lever 40 so that the rotating lever 40 can trigger the switch.
  • the door hook includes a lower door hook 28 , a first switch 76 is provided on the bracket 14 , and the switch includes a second switch 78 and a third switch 80 .
  • the buffer assembly 16 is configured such that during the closing process of the door body 12, the driving lever 20 is driven by the lower door hook 28 to first trigger the first switch 76, and the rotating lever 40 is driven by the lower door hook 28 and then triggers the second switch 78. , and then trigger the third switch 80. In this way, after the driving lever 20 triggers the first switch 76, the rotating lever 40 triggers the second switch 78 and the third switch 80 in sequence, so that the first switch 76, the second switch 78 and the third switch 80 are triggered in sequence, avoiding switch triggering. The problem of confusing order.
  • the household appliance 100 may include a microwave oven including a first switch 76 , a second switch 78 , and a third switch 80 .
  • the first switch 76 may be a monitoring switch, which is used to monitor the circuit of the entire microwave oven.
  • the second switch 78 may be a secondary switch used to control the turning on of lights and cooling fans or other components.
  • the third switch 80 may be a primary switch used to control the microwave function of the microwave oven. During the closing process of the door 12, the first switch 76, the second switch 78 and the third switch 80 are triggered in sequence to generate corresponding electrical signals so that the control panel of the microwave oven can control the operation of the microwave oven.
  • the triggering sequence of the three switches is particularly important. During the closing process, the triggering sequence should be: first trigger the monitoring switch, then trigger the secondary switch, and finally trigger the primary switch. In this way, users can be guaranteed to use it safely and comply with safety regulations.
  • the number of switches is not limited to three, and may also be other numbers of switches.
  • the number and triggering sequence of switches are set according to actual conditions and are not specifically limited here.
  • the end of the door hook has a first guide surface 82
  • the driving lever 20 includes a first arm 52 and a second arm 54 spaced apart.
  • the second arm 54 has a second guide surface 84 on its side.
  • the first guide surface 82 It is connected with the second guide surface 84 so that the end of the door hook bypasses the second arm 54 and then the second arm 54 blocks the door hook.
  • the first guide surface 82 and the second guide surface 84 are cooperatively connected, so that the end of the door hook bypasses the second arm 54 and then the second arm 54 blocks the door hook, thereby realizing a forced
  • the door-closing structure is designed so that when the driving lever 20 is triggered abnormally, there is no need to disassemble and repair the machine. The user can force the door to close and return to normal.
  • the lower door hook 28 is provided with a hook portion 86 at its end, and the hook portion 86 can be easily engaged.
  • the lower door hook 28 includes a first guide surface 82 , and the first guide surface 82 can be disposed on the hook portion 86 , so that the user can force the door to close, so that the lower door hook 28 and the driving lever 20 return to a normal matching position.
  • the lower door hook 28 contacts the first arm 52 of the driving lever 20 under a certain initial speed condition.
  • the lower door hook 28 can cause the driving lever 20 to rotate, and the driving lever 20 will trigger the trigger after the rotation.
  • First switch 76, and then the second arm 54 of the driving lever 20 blocks the lower door hook 28, driving the lower door hook 28 to continue closing the door, and the lower door hook 28 abuts the contact arm 44 to rotate the rotating lever 40.
  • the driving lever 20 in real life, it is easy for users or children to use abnormal means to force the driving lever 20 to be triggered (as shown in Figure 69), for example: using bamboo sticks, fingers and other slender objects to extend into the bracket 14 to move the driving lever. 20, forcing the driving lever 20 to be triggered, causing the driving lever 20 to rotate, and the lower door hook 28 and the driving lever 20 cannot cooperate, causing the door 12 to be unable to be closed, thereby causing the household appliance 100 to lose its function and even need to be disassembled and repaired.
  • the end of the lower door hook 28 has a first guide surface 82
  • the driving lever 20 includes a second guide surface 84.
  • the first guide surface 82 and the second guide surface 84 are cooperatively connected, so that the end of the door hook can After bypassing the second arm 54, the second arm 54 blocks the lower door hook 28.
  • the user can restore the normal cooperative relationship between the lower door hook 28 and the driving lever 20 by using greater force, and there is no need to disassemble the machine for maintenance.
  • the end of the lower door hook 28 can be forced to pass through the gap between the second arm 54 of the driving lever 20 and the bracket 14 through elastic deformation of the plastic.
  • the first guide surface 82 and the second guide surface 84 may be guide inclined surfaces.
  • the two driving elastic members connect the bracket 14 and the driving lever 20.
  • the resultant force F of the two driving elastic members is located above the rotation center O of the driving lever 20.
  • the driving elasticity The resultant force F of the components forces the driving lever 20 to have a tendency to rotate clockwise, and the two driving elastic components remain in a stretched state.
  • the driving lever 20 is restricted from clockwise movement by the stop post 88 on the bracket 14.
  • the pendulum block 34 is connected to the damper 18 and the driving lever 20 respectively, and the pendulum block 34 can freely rotate around the driving lever 20, and the compression spring 32 always in a compressed state.
  • the lower door hook 28 pulls the driving lever 20 to move outward.
  • the angle between the swing block 34 and the driving lever 20 is the largest, and drives the first driving elastic member 60 and the second driving elastic member. 64 and damper 18 movements.
  • the resultant force F of the two driving elastic parts is located above the rotation center O of the driving lever 20
  • the resultant force F provided by the two driving elastic parts to the driving lever 20 changes from a counterclockwise rotation force to a force that makes the driving lever 20 rotate in a clockwise direction.
  • the force with which the hour hand rotates After the lower door hook 28 is pulled out, the driving lever 20 actively rotates clockwise to the initial position, and at the same time, the first and second driving elastic members 64 and the damper 18 return to the initial state.
  • the lower door hook 28 first contacts the first arm 52 of the driving lever 20, and forces the driving lever 20 to rotate counterclockwise around the rotation axis at a preset angle.
  • the latter coincides with the pendulum block 34.
  • the damper 18 does not play a hindering role (that is, the lower door hook 28 is After colliding with the first arm 52, there is no obvious rebound phenomenon, so as to prevent the lower door hook 28 from colliding back and forth in the space between the first arm 52 and the second arm 54, causing stagnation).
  • the resultant force F of the two driving elastic members rotates below the rotation center O of the driving lever 20 , and the second arm 54 of the driving lever 20 quickly contacts the lower door hook 28 .
  • the resultant force F of the two driving elastic parts becomes a force that causes the driving lever 20 to rotate counterclockwise, and the driving lever 20 drives the pendulum block 34 together.
  • the driving lever 20 drives the pendulum block 34 together.
  • the driving lever 20 first triggers the monitoring switch. Subsequently, the end of the lower door hook 28 touches the boss 56 of the contact arm 44 of the rotating lever 40, and the rotating lever 40 starts to rotate, triggering the secondary switch and the primary switch in sequence (the secondary switch is stacked above the primary switch). At the same time, the end of the upper door hook 26 presses the top of the inclined block 30, and the inclined block 30 begins to rise, resisting the arc on the left side of the end of the upper door hook 26. Until the movement stops and the door closes.
  • the lower door hook 28 drives the driving lever 20 to rotate clockwise.
  • the lower door hook 28 disengages from the boss 56 of the contact arm 44 of the rotating lever 40.
  • the primary switch and the secondary switch The level switches are no longer switched on in sequence.
  • the upper door hook 26 presses the inclined block 30 and moves outward until it is completely disengaged.
  • the drive lever 20 is disengaged from the monitoring switch.
  • the resultant force F of the two driving elastic members changes from a force that forces the driving lever 20 to rotate counterclockwise to a force that forces the driving lever 20 to rotate clockwise.
  • the driving lever 20 automatically rotates to the initial position.
  • the first driving elastic member, the second driving elastic member 64, the inclined block 30, the rotating lever 40 and the damper 18 all return to the initial state, and the door opening is completed.
  • the door is not closed, but the drive lever 20 is triggered.
  • the door body 12 can be strongly pushed to perform the closing action, and the lower door hook 28 can return to the normal closing position. This is because the end of the lower door hook 28 can be forced to pass through the gap between the second arm 54 of the driving lever 20 and the bracket 14 through elastic deformation of the plastic. Two guide surfaces ensure smooth forced closing.
  • a household appliance 100 includes a door 12 , a bracket 14 and a buffer assembly 16 .
  • the door body 12 has a door hook.
  • the door body 12 is rotatably connected to the bracket 14 .
  • the buffer assembly 16 is installed on the bracket 14.
  • the buffer assembly 16 includes a recoverable damper 18 and a driving lever 20.
  • the driving lever 20 is rotationally connected to the bracket 14.
  • the damper 18 includes a body 22 and a rod 24.
  • the body 22 is fixed on the bracket 14.
  • the rod 24 is movably connected to the body 22 .
  • the door hook When the door 12 is closed, the door hook contacts the drive lever 20 to compress the rod 24 .
  • the door hook When the door body 12 is opened, the door hook is separated from the driving lever 20, the damper 18 is in a natural length state, and there is a gap between the rod 24 and the driving lever 20.
  • a recoverable damper 18 is used.
  • the damper 18 and the driving lever 20 are no longer linked.
  • the pendulum block can be omitted, reducing the use of parts and simplifying the movement process.
  • the damper used is one-way damping, which is connected to the pendulum block.
  • the one-way damping cannot automatically return to its original length, and the location where the damper is connected to the pendulum block is small in size, which imposes high performance requirements on the damper. Higher, the cost is higher.
  • the household appliance 100 in the embodiment of the present application uses a recoverable damper 18.
  • the recoverable damper 18 can automatically return to its original length without the need for a pendulum block to be connected to the driving lever 20. Therefore, , a lower-cost damper 18 can be used, thereby reducing the cost of parts and making maintenance easier.
  • the household appliances 100 include but are not limited to microwave ovens, ovens (including electric ovens, microwave ovens and all-in-one steamers and ovens), steamers, dishwashers, disinfection cabinets and other household appliances 100 having doors 12 .
  • the embodiment of the present application is explained by taking the household appliance 100 as a microwave oven as an example.
  • the purpose of taking the household appliance 100 as a microwave oven as an example is to facilitate understanding of the implementation of the present application and should not be understood as a limitation of the present application.
  • the door body 12 can be made of double-layer glass; the door body 12 can also be made of anti-wave leakage glass.
  • One of the benefits of using the glass door body 12 is that it is convenient for the user to observe the food inside the household appliance 100 from the outside.
  • a handle can be provided on the outer surface of the door body 12 to facilitate the user to open and close the door.
  • the materials of the door hook can be all selected from metal materials or plastic materials, or made of a combination of different materials.
  • the door hook is in the shape of a long strip as a whole, and a hook portion 86 is provided at the end of the door hook.
  • the hook portion 86 can be easily engaged.
  • the number of door hooks can be set according to the actual situation. For example, the number of door hooks can be one, two, or more than two.
  • the door hook includes two door hooks, namely an upper door hook 26 and a lower door hook 28, as shown in Figures 12 and 13.
  • the upper door hook 26 and the lower door hook 28 may be connected to form an integrated structural member and fixed on the door body 12 .
  • the upper door hook 26 and the lower door hook 28 may be separately fixed on the door body 12 . There is no specific limitation here.
  • the lower door hook 28 mainly receives the buffering force of the buffer assembly 16 to reduce closing noise. That is, when the door body 12 is closed, the lower door hook 28 resists the driving lever 20 to compress the rod 24 . When the door body 12 is opened, the lower door hook 28 is separated from the driving lever 20, the damper 18 is in a natural length state, and there is a gap between the rod 24 and the driving lever 20.
  • the upper door hook 26 can also receive the buffering force of the buffer assembly 16 to reduce the closing noise, or both the upper door hook 26 and the lower door hook 28 can receive the buffering force of the buffer assembly 16 to reduce the closing noise. No specific limitation is made. In the following embodiments, the lower door hook 28 receives the buffer force of the buffer assembly 16 as an example for description.
  • the household appliance 100 also includes a ramp block 30 and a compression spring 32.
  • the ramp block 30 and the compression spring 32 are installed on the bracket 14.
  • a receiving space is provided in the ramp block 30, and the compression spring 32 is It is placed in the receiving space, the top of the compression spring 32 contacts the top wall of the receiving space, and the bottom of the compression spring 32 contacts the support member on the bracket 14 that extends into the receiving space.
  • the top of the inclined block 30 has an inclined surface 74 , and the inclined surface 74 slopes upward along the vertical direction toward the inside of the bracket 14 .
  • the end of the upper door hook 26 contacts the inclined surface 74 so that the inclined block 30 descends to compress the compression spring 32, and the end of the upper door hook 26 crosses the inclined surface. 74, the inclined block 30 blocks the upper door hook 26 under the action of the compression spring 32.
  • the upper door hook 26 presses the inclined block 30 and moves downward, and the upper door hook 26 moves outward until it is completely disengaged.
  • the compression spring 32 resets the ramp block 30.
  • the household appliance 100 may include a cavity (not shown), the bracket 14 may be fixed in the cavity, and the door 12 is rotatably connected to the cavity.
  • the cavity is provided with a chamber, the front side of the chamber has an opening, and the door 12 is used to close and open the opening. Food to be heated can be placed in the chamber.
  • the body 22 of the damper 18 is fixed on the bracket 14. During the opening and closing process of the door 12, the body 22 is fixed. During the closing process of the door 12, the lower door hook 28 pushes the driving lever 20 to rotate counterclockwise, driving After the lever 20 is rotated to a certain angle (the gap between the driving lever 20 and the rod 24 is eliminated), it contacts the rod 24 and pushes the rod 24 to move into the body 22.
  • the body 22 provides a damping force to the rod 24, reducing the door volume. 12 closing speed, which can reduce door closing noise.
  • the lower door hook 28 drives the driving lever 20 to rotate clockwise, and the rod 24 is driven by the body 22 and extends out of the body 22 until the rod 24 is separated from the driving lever 20, and the damper 18 returns to its natural state. length.
  • the damper 18 is in a natural length state.
  • the damper 18 is in a natural length state, which can be understood as the state of the damper 18 when the damper 18 is not damaged and the rod 24 is not stressed, or the force acting on the rod 24 is not enough to cause the rod to The state of the damper 18 when 24 moves into the body 22.
  • the bracket 14 is provided with a receiving groove 34 , and the body 22 is at least partially fixed in the receiving groove 34 . In this way, the installation of the damper 18 can be facilitated.
  • the body 22 may be a cylindrical body 22, and in one embodiment, a part of the body 22 may be located in the receiving groove 34. When the damper 18 is installed, the body 22 can be placed into the receiving groove 34 on the bracket 14, which facilitates the installation of the damper 18.
  • the bracket 14 is also provided with a protective cover 36.
  • the protective cover 36 is provided with another accommodation slot 34.
  • the accommodation slot 34 on the protective cover 36 can accommodate another part of the body 22.
  • the two accommodating grooves 34 can surround the main body 22 to further fix the main body 22.
  • the bracket 14 and the protective cover 36 can be connected by snapping.
  • a limiting column 38 is provided on the bracket 14 .
  • the limiting column 38 abuts the driving lever 20 and limits the rotation of the driving lever 20 . In this way, the rotation range of the driving lever 20 can be limited to prevent damage to the driving lever 20 .
  • the position of the limiting post 38 is set so that the rotation of the driving lever 20 does not exceed the position of the limiting post 38 .
  • This position is the position to which the drive lever 20 rotates after closing the door.
  • the buffer assembly 16 also includes a rotating lever 40, a switch is provided on the bracket 14, and the rotating lever 40 is rotationally connected to the bracket 14,
  • the door hook resists the rotating lever 40 so that the rotating lever 40 triggers the switch.
  • adding the rotating lever 40 can, on the one hand, meet the safety requirements, and on the other hand, further reduce the door closing noise.
  • some household appliances 100 require the door 12 to be closed before the household appliance 100 can be allowed to operate.
  • the door 12 needs to be closed before the microwave can be allowed to emit microwaves into the cavity to heat food, so as to prevent wave leakage due to the door not being closed properly.
  • the lower door hook 28 resists the rotating lever 40 so that the rotating lever 40 triggers the switch, so that the control panel of the household appliance 100 obtains the relevant trigger signal, and then controls the operation of the household appliance 100 to meet safety regulations. .
  • the lower door hook 28 is close to the rotating lever 40.
  • the rotating lever 40 can be driven to rotate clockwise.
  • the lower door hook 28 and the door can be aligned.
  • the body 12 decelerates, thereby further reducing door closing noise.
  • the rotating lever 40 includes a rotating arm 42 and a contact arm 44 .
  • the rotating arm 42 is rotationally connected to the bracket 14 .
  • the contact arm 44 is connected to the rotating arm 42 .
  • FIG. 88 The bracket 14 A slot 46 is provided, and a contact arm 44 is at least partially located in the slot 46.
  • the contact arm 44 is used to trigger the switch. In this way, the rotating lever 40 can be protected from being triggered artificially and meets safety regulations.
  • the contact arm 44 is away from the rotation axis of the rotating arm 42.
  • the lower door hook 28 can extend into the bracket 14 through the lower through hole 48 of the front plate 51 of the connecting bracket 14 and push the contact arm 44 to rotate. , thereby driving the entire rotating lever 40 to rotate.
  • the contact arm 44 is at least partially located in the slot 46, which can prevent external thin rods and other objects from extending into the bracket 14 from the lower through hole 48 to push the contact arm 44 to rotate and trigger the switch artificially, causing the household appliance 100 to mistakenly think that the door 12 has been opened. Close it properly, and then start the safety problem caused by it.
  • the protective cover 36 is also provided with a bump 50 on the inside.
  • the shape of the bump 50 matches the shape of the slot 46 to surround the contact arm 44, further ensuring that the contact arm 44 will not be accidentally triggered.
  • the rotation of the contact arm 44 can also be made more stable.
  • the driving lever 20 includes a first arm 52 and a second arm 54 spaced apart. During the closing process of the door body 12 , the door body 12 is closed. The hook passes under the second arm 54 and then contacts the first arm 52 to drive the driving lever 20 to rotate.
  • the contact arm 44 is provided with a protruding post 56,
  • the first arm 52 is provided with a notch 58.
  • the first arm 52 passes through the notch 58 to avoid the protruding pillar 56. In this way, it can be ensured that the contact arm 44 of the rotating lever 40 can pass smoothly without interference.
  • the first arm 52 and the second arm 54 are both located on the left side of the protruding column 56 .
  • the first arm 52 is longer.
  • the lower door hook 28 first passes under the second arm 54 and then enters the space between the first arm 52 and the second arm 54 . Then the lower door hook 28 It contacts the first arm 52 to drive the rotating lever to rotate counterclockwise.
  • the second arm 54 blocks the lower door hook 28, so that the driving lever 20 drives the lower door hook 28 to continue closing the door.
  • the first arm 52 faces toward The protruding column 56 rotates in the direction, and the gap 58 is provided so that when the first arm 52 passes by, the first arm 52 and the protruding column 56 do not interfere, so that the lower door hook 28 can contact the protruding column 56 and drive the rotating lever 40 to rotate clockwise. , the door 12 can be closed smoothly, and the switch can be triggered smoothly. After the door body 12 is closed, the end of the lower door hook 28 and the protruding column 56 are located in the space between the first arm 52 and the second arm 54, as shown in Figure 97.
  • the buffer assembly 16 also includes two driving elastic parts: a first driving elastic part 60 and a second driving elastic part 64.
  • the angle formed between the two driving elastic parts is is an acute angle.
  • the driving elastic member and the driving lever 20 are located on opposite sides of the bracket 14.
  • the bracket 14 is provided with a through hole 66, as shown in Figure 86 to Figure 87.
  • the driving lever 20 connects the two driving elastic members through the through hole 66. Two The driving elastic member is used to drive the driving lever 20 to accelerate rotation so that the driving lever 20 drives the door body 12 to accelerate. In this way, the process of first accelerating and then decelerating the lower door hook 28 can be realized.
  • the buffer assembly 16 includes a single driving elastic member 65.
  • the single driving elastic member 65 and the driving lever 20 are located on opposite sides of the bracket 14.
  • the bracket 14 is provided with a through hole 66.
  • the driving lever 20 is connected to a single driving elastic member 65 through the through hole 66 .
  • the single driving elastic member 65 is used to drive the driving lever 20 to accelerate rotation so that the driving lever 20 drives the door body 12 to accelerate. In this way, the process of first accelerating and then decelerating the lower door hook 28 can be realized.
  • the driving elastic member is a driving spring.
  • the driving elastic member may also be an elastic member of other structures, and is not limited to a spring.
  • the number of driving elastic members included in the buffer assembly 16 is not limited to two, but a single one, and may also be other numbers of elastic members, which are not specifically limited here.
  • the driving elastic members and driving levers 20 located on opposite sides of the bracket 14 can disperse the relevant structural parts to avoid space reduction and excessive weight concentration caused by too many structural parts on the same side of the bracket 14, which is not conducive to the arrangement of structural parts.
  • the driving elastic member can provide a pulling force to the driving lever 20 so that the driving lever 20 drives the lower door hook 28 to accelerate, and can also provide a pushing force to the driving lever 20 so that the driving lever 20 drives the lower door hook 28 to accelerate.
  • the driving elastic member can provide a pulling force to the driving lever 20 so that the driving lever 20 drives the lower door hook 28 to accelerate.
  • the driving lever 20 can drive the lower door hook 28 to accelerate, the door 12 can be closed by relying on the force of the driving lever 20 during the acceleration phase.
  • the damper 18 is compressed.
  • the driving lever 20 continues to compress the rod 24 of the damper 18.
  • the compression amount of the damper 18 increases, and the damping force provided by the damper 18 also increases.
  • the damping force provided by the damper 18 is greater than that provided by the driving elastic member.
  • the driving force is increased, the lower door hook 28 begins to decelerate.
  • the noise when the door body 12 is closed is not too loud.
  • the rod 24 of the damper 18 when the rod 24 of the damper 18 is compressed, the body 22 is fixed.
  • the first driving elastic member 60 is located above the second driving elastic member 64 . Referring to FIG. 86 , one end of the first driving elastic member 60 hooks the positioning post 68 on the bracket 14 , and the other end hooks the connecting portion 70 on the driving lever 20 . One end of the second driving elastic member 64 hooks the other positioning post 68 on the bracket 14 , and the other end hooks the connecting portion 70 .
  • the angle formed by the first driving elastic member 60 and the second driving elastic member 64 is an acute angle, and the acute angle may be degrees, degrees, degrees, etc., and is not specifically limited here.
  • the number of driving elastic members is not limited to two, but may also be single, or more than two, which is not specifically limited here.
  • the bracket 14 is also provided with a stopper 72 , and the stopper 72 blocks at least a portion of the rotating arm 42 . In this way, the rotating lever 40 can be protected from being triggered artificially and meets the safety regulations.
  • the lower door hook 28 can extend into the bracket 14 through the lower through hole 48 on the bracket 14, and push the contact arm 44 to rotate, thereby driving the entire rotating lever 40 to rotate.
  • the stopper 72 which blocks at least part of the rotating arm 42 , it is possible to prevent external thin rods and other objects from extending into the bracket 14 from the lower through hole 48 to push the rotating arm 42 to rotate and trigger the switch artificially, causing the household appliance 100 to malfunction. It is considered that the door 12 has been closed, and then the safety problem caused by starting.
  • FIG. 82 Another stopper 72 is provided on the inside of the protective cover 36.
  • the shape of the stopper 72 on the bracket 14 matches the shape of the stopper 72 on the protective cover 36 to fully block the rotating arm 42. , further ensuring that the rotating arm 42 will not be accidentally triggered.
  • the stopper 72 on the bracket 14 can completely block the rotating arm 42 .
  • the top surface of the stopper 72 includes an inclined surface 74 , which is used to guide the door hook to contact the contact arm 44 during the closing process of the door body 12 . In this way, it can be ensured that the door hook will enter the normal position and contact the rotating lever 40 during the closing process of the door body 12 .
  • the lower door hook 28 moves close to the rotating lever 40.
  • the inclined surface 74 guides the end of the lower door hook 28 to the contact arm 44, so that the lower door hook 28 can contact the contact arm 44.
  • the protruding posts 56 of the contact arms 44 are in contact.
  • the lower door hook 28 drives the rotating lever 40 so that the rotating lever 40 can trigger the switch.
  • the door hook includes a lower door hook 28 , a first switch 76 is provided on the bracket 14 , and the switch includes a second switch 78 and a third switch 80 .
  • the buffer assembly 16 is configured such that during the closing process of the door body 12, the driving lever 20 is driven by the lower door hook 28 to first trigger the first switch 76, and the rotating lever 40 is driven by the lower door hook 28 and then triggers the second switch 78. , and then trigger the third switch 80. In this way, after the driving lever 20 triggers the first switch 76, the rotating lever 40 triggers the second switch 78 and the third switch 80 in sequence, so that the first switch 76, the second switch 78 and the third switch 80 are triggered in sequence, avoiding switch triggering. The problem of confusing order.
  • the household appliance 100 may include a microwave oven including a first switch 76 , a second switch 78 , and a third switch 80 .
  • the first switch 76 may be a monitoring switch, which is used to monitor the circuit of the entire microwave oven.
  • the second switch 78 may be a secondary switch, which is used to control the turning on of lights and cooling fans or other components.
  • the third switch 80 may be a primary switch used to control the microwave function of the microwave oven. During the closing process of the door 12, the first switch 76, the second switch 78 and the third switch 80 are triggered in sequence to generate corresponding electrical signals so that the control panel of the microwave oven can control the operation of the microwave oven.
  • the triggering sequence of the three switches is particularly important. During the closing process, the triggering sequence should be: first trigger the monitoring switch, then trigger the secondary switch, and finally trigger the primary switch. In this way, users can be guaranteed to use it safely and comply with safety regulations.
  • the number of switches is not limited to three, and may also be other numbers of switches.
  • the number and triggering sequence of switches are set according to actual conditions and are not specifically limited here.
  • the end of the door hook has a first guide surface 82
  • the driving lever 20 includes a first arm 52 and a second arm 54 spaced apart.
  • the second arm 54 has a second guide surface 84 on its side.
  • the first guide surface 82 It is connected with the second guide surface 84 so that the end of the door hook bypasses the second arm 54 and then the second arm 54 blocks the door hook.
  • the door-closing structure is designed so that when the driving lever 20 is triggered abnormally, there is no need to disassemble and repair the machine. The user can force the door to close and return to normal.
  • the lower door hook 28 is provided with a hook portion 86 at its end, and the hook portion 86 can be easily engaged.
  • the lower door hook 28 includes a first guide surface 82 , and the first guide surface 82 can be disposed on the hook portion 86 , so that the user can force the door to close, so that the lower door hook 28 and the driving lever 20 return to a normal matching position.
  • the lower door hook 28 contacts the first arm 52 of the driving lever 20 under a certain initial speed condition.
  • the lower door hook 28 can cause the driving lever 20 to rotate, and the driving lever 20 will trigger the trigger after the rotation.
  • First switch 76, and then the second arm 54 of the driving lever 20 blocks the lower door hook 28, driving the lower door hook 28 to continue closing the door, and the lower door hook 28 abuts the contact arm 44 to rotate the rotating lever 40.
  • the driving lever 20 in real life, it is easy for users or children to use abnormal means to force the driving lever 20 to be triggered (as shown in Figure 98), for example: using bamboo sticks, fingers and other slender objects to extend into the bracket 14 to move the driving lever. 20, forcing the driving lever 20 to be triggered, causing the driving lever 20 to rotate, and the lower door hook 28 and the driving lever 20 cannot cooperate, causing the door 12 to be unable to be closed, thereby causing the household appliance 100 to lose its function and even need to be disassembled and repaired.
  • the end of the lower door hook 28 has a first guide surface 82
  • the driving lever 20 includes a second guide surface 84.
  • the first guide surface 82 and the second guide surface 84 are cooperatively connected, so that the end of the door hook can After bypassing the second arm 54, the second arm 54 blocks the lower door hook 28.
  • the user can restore the normal cooperative relationship between the lower door hook 28 and the driving lever 20 by using greater force, and there is no need to disassemble the machine for maintenance.
  • the end of the lower door hook 28 can be forced to pass through the gap between the second arm 54 of the driving lever 20 and the bracket 14 through elastic deformation of the plastic.
  • the first guide surface 82 and the second guide surface 84 may be guide inclined surfaces.
  • the description of the initial and terminal states at the initial moment (when the door is not closed), the two driving elastic parts connect the bracket 14 and the driving lever 20, and the resultant force of the two driving elastic parts is located on the rotation axis of the driving lever 20 At this time, the force (resultant force) of the driving elastic member forces the driving lever 20 to rotate clockwise, and the two driving elastic members remain in a stretched state. At the same time, the driving lever 20 is restricted from clockwise movement by the stop post 88 on the bracket 14, and the compression spring 32 is always in a compressed state. The rod 24 of the damper 18 and the driving lever 20 are not in direct contact, and there is a gap between them.
  • the lower door hook 28 pulls the driving lever 20 to move outward, driving the first driving elastic member 60 and the second driving elastic member 64 to move.
  • the force provided by the driving elastic member to the driving lever 20 changes from a counterclockwise rotation force to a clockwise rotation force.
  • the driving lever 20 rotates clockwise to the initial position, and at the same time, the first and second driving elastic members 64 and the damper 18 return to the final state.
  • the rod 24 extends together until it returns to its original length.
  • a single driving elastic member connects the bracket 14 and the driving lever 20, and the force of the driving elastic member is located on the rotation axis of the driving lever 20.
  • the force of the driving elastic member forces the driving lever 20 to rotate clockwise.
  • the elastic component is driven to maintain a stretched state due to the dynamic trend.
  • the driving lever 20 is restricted from clockwise movement by the stop post 88 on the bracket 14, and the compression spring 32 is always in a compressed state.
  • the rod 24 of the damper 18 and the driving lever 20 are not in direct contact, and there is a gap between them.
  • the lower door hook 28 pulls the drive lever 20 to move outward, causing the single drive elastic member to move.
  • the force provided by the driving elastic member to the driving lever 20 changes from a counterclockwise rotation force to a clockwise rotation force.
  • the driving lever 20 rotates clockwise to the initial position, while the single driving elastic member and the damper 18 return to the final state.
  • the damper 18 rotates clockwise as the driving lever 20, the rod 24 extends together until it returns to its original length.
  • the lower door hook 28 first contacts the first arm 52 of the driving lever 20 under a certain initial speed condition, and forces the driving lever to 20 Rotate a certain angle counterclockwise around the axis of rotation.
  • the damper 18 does not play a hindering role (that is, after the lower door hook 28 collides with the first arm 52, there is no obvious rebound phenomenon, so as to prevent the lower door hook 28 from colliding with the first arm 52 and the second arm 52.
  • the arms 54 collide back and forth in the space between them, causing stagnation).
  • the resultant force of the two driving elastic members rotates below the rotating shaft of the driving lever 20 , and the second arm 54 of the driving lever 20 quickly contacts the lower door hook 28 .
  • the resultant force of the two driving elastic parts becomes a force that rotates the driving lever 20 counterclockwise and drives the lower door hook 28 to move; the driving lever 20 begins to contact the damper 18, and the damping starts to work.
  • the upper door hook 26 extends into the upper through hole 90 of the front plate 51 and starts to push down the inclined block 30.
  • the driving lever 20 first triggers the monitoring switch.
  • the end of the lower door hook 28 touches the boss 56 of the contact arm 44 of the rotating lever 40, and the rotating lever 40 starts to rotate, triggering the secondary switch and the primary switch in sequence (the secondary switch is stacked above the primary switch).
  • the end of the upper door hook 26 presses the top of the inclined block 30, and the inclined block 30 begins to rise, resisting the arc on the left side of the end of the upper door hook 26. Until the movement stops and the door closes.
  • the lower door hook 28 first contacts the first arm 52 of the driving lever 20 under a certain initial speed condition, and forces the driving lever 20 to rotate around the rotation axis. Turn a certain angle counterclockwise. During this certain angle, the damper 18 does not play a hindering role (that is, after the lower door hook 28 collides with the first arm 52, there is no obvious rebound phenomenon, so as to prevent the lower door hook 28 from colliding with the first arm 52 and the second arm 52.
  • the arms 54 collide back and forth in the space between them, causing stagnation).
  • the force of a single driving elastic member rotates to the bottom of the rotating shaft of the driving lever 20 , and the second arm 54 of the driving lever 20 quickly contacts the lower door hook 28 .
  • the force of a single driving elastic member becomes a force that rotates the driving lever 20 counterclockwise and drives the lower door hook 28 to move; the driving lever 20 begins to contact the damper 18 , damping starts to take effect.
  • the upper door hook 26 extends into the upper through hole 90 and starts to push down the inclined block 30.
  • the driving lever 20 first triggers the monitoring switch.
  • the end of the lower door hook 28 touches the boss 56 of the contact arm 44 of the rotating lever 40, and the rotating lever 40 starts to rotate, triggering the secondary switch and the primary switch in sequence (the secondary switch is stacked above the primary switch).
  • the end of the upper door hook 26 presses the top of the inclined block 30, and the inclined block 30 begins to rise, resisting the arc on the left side of the end of the upper door hook 26. Until the movement stops and the door closes.
  • the lower door hook 28 drives the driving lever 20 to rotate clockwise.
  • the lower door hook 28 disengages from the boss 56 of the contact arm 44 of the rotating lever 40.
  • the primary switch and the secondary switch are no longer switched on in sequence.
  • the upper door hook 26 presses the inclined block 30 and moves outward until it is completely disengaged.
  • the drive lever 20 is disengaged from the monitoring switch.
  • the force of the driving elastic member changes from the force that forces the driving lever 20 to rotate counterclockwise to the force that forces the driving lever 20 to rotate clockwise.
  • the driving lever 20 automatically rotates to the initial position.
  • the first and second driving elastic members 64, the inclined block 30, the rotating lever 40 and the damper 18 are all restored to the initial state, and the door opening is completed.

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Abstract

一种家用电器(100)，家用电器(100)包括：支架(14)；门体(12)，门体(12)转动连接支架(14)，门体(12)具有门勾；缓冲组件(16)，安装在支架(14)，缓冲组件(16)包括第一驱动弹性件(60)、第二驱动弹性件(64)、阻尼器(18)和驱动杠杆(20)，驱动杠杆(20)上设有连接部(70)，第一驱动弹性件(60)和第二驱动弹性件(64)连接连接部(70)，在门体(12)打开的情况下，门勾脱离驱动杠杆(20)，第一驱动弹性件(60)与第一连线(L1)之间的夹角选自范围0度至60度，第二驱动弹性件(64)与第二连线(L2)之间的夹角选自范围0度至60度，第一连线(L1)为第一驱动弹性件(60)与连接部(70)形成的第一连接处与驱动杠杆(20)转动中心之间的连线，第二连线(L2)为第二驱动弹性件(64)与连接部(70)形成的第二连接处与驱动杠杆(20)转动中心之间的连线。

Description

家用电器
相关申请的交叉引用
本申请要求广东美的厨房电器制造有限公司和美的集团股份有限公司于2022年06月01日提交的、中国专利申请号为“202221380557.9、202221392217.8”的优先权，以上中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及电器技术领域，特别涉及一种家用电器。
背景技术
在相关技术中，家用电器可包括腔体和门体，腔体内设有腔室，门体转动地连接腔体以打开或关闭腔室。为减少关门噪音，家用电器设有缓关门联锁结构，缓关门联锁结构包括驱动弹簧，驱动弹簧通过驱动杠杆向门体提供关门时的加速力。因此，有必要提供一种设计驱动弹簧驱动力的方案。
发明内容
本申请实施方式提供了一种家用电器。
本申请第一方面实施方式的一种家用电器，包括：
支架；
门体，所述门体转动连接所述支架，所述门体具有门勾；
缓冲组件，安装在所述支架，所述缓冲组件包括一个第一驱动弹性件、一个第二驱动弹性件、阻尼器和驱动杠杆，所述阻尼器活动连接所述驱动杠杆，所述驱动杠杆上设有连接部，所述第一驱动弹性件和所述第二驱动弹性件连接所述连接部，
在所述门体打开的情况下，所述门勾脱离所述驱动杠杆，所述第一驱动弹性件与第一连线之间的夹角选自范围0度至60度，所述第二驱动弹性件与第二连线之间的夹角选自范围0度至60度，所述第一连线为所述第一驱动弹性件与所述连接部形成的第一连接处与所述驱动杠杆转动中心之间的连线，所述第二连线为所述第二驱动弹性件与所述连接部形成的第二连接处与所述驱动杠杆转动中心之间的连线；
在所述门体关闭的情况下，所述门勾抵触所述驱动杠杆以挤压所述阻尼器。
上述家用电器中，在门体打开的情况下，通过设定第一驱动弹性件和第二驱动弹性件与目标连线之间的角度范围，使得门体在关闭过程中，两个驱动弹性件能够提供合适的驱动力，门体能够顺利关闭。
在某些实施方式中，在所述门体打开的情况下，所述第一驱动弹性件与所述第二驱动弹性件之间的夹角选自范围7度至110度。
在某些实施方式中，在所述门体打开的情况下，所述第一驱动弹性件和所述第二驱动弹性件的合力位于所述驱动杠杆转动中心的上方；
在所述门体关闭的情况下，所述第一驱动弹性件和所述第二驱动弹性件的合力位于所述驱动杠杆转动中心的下方。
在某些实施方式中，在所述门体打开的情况下，所述第一驱动弹性件的切向分力向所述驱动杠杆提供沿第一方向转动的转矩，所述第二驱动弹性件的切向分力向所述驱动杠杆提供沿第二方向转动的转矩，所述第一方向与所述第二方向相反，所述第一驱动弹性件提供的转矩大于所述第二驱动弹性件提供的转矩。
在某些实施方式中，在所述门体关闭的情况下，所述第一驱动弹性件的切向分力向所述驱动杠杆提供沿第二方向转动的转矩，所述第二驱动弹性件的切向分力向所述驱动杠杆提供沿所述第二方向转动的转矩，所述第二驱动弹性件提供的转矩大于所述第一驱动弹性件提供的转矩。
在某些实施方式中，所述缓冲组件还包括转动杠杆，所述支架上设有开关，所述转动杠杆转动连接所述支架，
在所述门体关闭的情况下，所述门勾抵触所述转动杠杆以使得所述转动杠杆触发所述开关。
在某些实施方式中，所述转动杠杆包括转动臂和接触臂，所述转动臂转动连接所述支架，所述接触臂连接所述转动臂，所述支架开设有槽位，所述接触臂至少部分地位于所述槽位内，所述接触臂用于触发所述开关。
在某些实施方式中，所述驱动杠杆包括间隔的第一臂和第二臂，在所述门体关闭过程中，所述门勾从所述第二臂下方经过后与所述第一臂抵接以驱动所述驱动杠杆转动，
所述接触臂设有凸柱，
所述第一臂设有缺口，在所述门体关闭过程中，所述第一臂通过所述缺口避让所述凸柱。
在某些实施方式中，所述支架还设有挡块，所述挡块遮挡所述转动臂的至少一部分。
在某些实施方式中，所述门勾末端具有第一导向面；
所述驱动杠杆包括间隔的第一臂和第二臂，所述第二臂侧面具有第二导向面，在所述门体关闭的过程中，所述第一导向面与所述第二导向面配合连接，使所述门勾末端绕过所述第二臂后所述第二臂卡住所述门勾。
本申请第二方面实施方式提供了一种家用电器。
本申请实施方式的一种家用电器，包括：
门体，所述门体具有门勾；
支架，所述门体转动连接所述支架；
缓冲组件，安装在所述支架，所述缓冲组件包括可回复的阻尼器和驱动杠杆，所述驱动杠杆转动地连接所述支架，所述阻尼器包括本体和杆件，所述本体固定在所述支架，所述杆件可移动地连接所述本体，
在所述门体关闭的情况下，所述门勾抵触所述驱动杠杆以压缩所述杆件，
在所述门体打开的情况下，所述门勾脱离所述驱动杠杆，所述阻尼器处于自然长度状态，所述杆件与所述驱动杠杆之间有间隙。
上述家用电器中，采用可回复的阻尼器，阻尼器和驱动杠杆不再进行联动，可省略摆块，减少零部件的使用，简化运动过程。
在某些实施方式中，所述支架设有容置槽，所述本体至少部分地固定在所述容置槽。
在某些实施方式中，所述支架上设有限位柱，在所述门体关闭的情况下，所述限位柱抵接所述驱动杠杆并限制所述驱动杠杆的转动。
在某些实施方式中，所述缓冲组件还包括转动杠杆，所述支架上设有开关，所述转动杠杆转动连接所述支架，
在所述门体关闭的情况下，所述门勾抵触所述转动杠杆以使得所述转动杠杆触发所述开关。
在某些实施方式中，所述转动杠杆包括转动臂和接触臂，所述转动臂转动连接所述支架，所述接触臂连接所述转动臂，所述支架开设有槽位，所述接触臂至少部分地位于所述槽位内，所述接触臂用于触发所述开关。
在某些实施方式中，所述驱动杠杆包括间隔的第一臂和第二臂，在所述门体关闭过程中，所述门勾从所述第二臂下方经过后与所述第一臂抵接以驱动所述驱动杠杆转动，
所述接触臂设有凸柱，
所述第一臂设有缺口，在所述门体关闭过程中，所述第一臂通过所述缺口避让所述凸柱。
在某些实施方式中，所述支架还设有挡块，所述挡块遮挡所述转动臂的至少一部分。
在某些实施方式中，所述挡块的顶面包括斜面，在所述门体关闭的过程中，所述斜面用于导引所述门勾与所述接触臂抵接。
在某些实施方式中，所述门勾包括下门勾，所述支架上设有第一开关，所述开关包括第二开关和第三开关，
所述缓冲组件被配置为，在所述门体关闭过程中，所述驱动杠杆在所述下门勾的驱动下，先触发所述第一开关，所述转动杠杆在所述下门勾的驱动下，再触发所述第二开关，之后触发所述第三开关。
在某些实施方式中，所述门勾末端具有第一导向面；
所述驱动杠杆包括间隔的第一臂和第二臂，所述第二臂侧面具有第二导向面，在所述门体关闭的过程中，所述第一导向面与所述第二导向面配合连接，使所述门勾末端绕过所述第二臂后所述第二臂卡住所述门勾。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1至图4是本申请实施方式的家用电器的结构示意图；
图5至图6是本申请实施方式的支架与转动杠杆装配的示意图；
图7是本申请实施方式的家用电器的分解示意图；
图8至图10是本申请实施方式的家用电器的部分结构示意图；
图11是本申请实施方式的家用电器的部分分解示意图；
图12至图13是本申请实施方式的门勾和门体的装配示意图；
图14至图16是本申请实施方式的摆块的结构示意图；
图17至图21是本申请实施方式的保护盖的结构示意图，其中，图18是图17的A-A线的剖面图；
图22至图27是本申请实施方式的门勾的结构示意图，其中，图23是图22的B-B线的剖面图；
图28至图33是本申请实施方式的支架的结构示意图，其中，图29是图28的C-C线的剖面图；
图34至图39是本申请实施方式的驱动杠杆的结构示意图，其中，图35是图34的D-D线的剖面图；
图40至图41是本申请实施方式的斜块的结构示意图；
图42至图45是本申请实施方式的转动杠杆的结构示意图；
图46至图49是本申请实施方式的家用电器的关门过程一的示意图；
图50至图51是本申请实施方式的家用电器的关门过程一中驱动弹性件的受力状态示意图；
图52至图55是本申请实施方式的家用电器的关门过程二的示意图；
图56是本申请实施方式的家用电器的关门过程二中驱动弹性件的受力状态示意图；
图57至图59是本申请实施方式的家用电器的关门过程三的示意图；
图60是本申请实施方式的家用电器的关门过程三中驱动弹性件的受力状态示意图；
图61是本申请实施方式的第一驱动弹性件在关门过程中的长度变化图；
图62是本申请实施方式的第二驱动弹性件在关门过程中的长度变化图；
图63至图65是本申请实施方式的家用电器的关门状态示意图；
图66至图68是本申请实施方式的家用电器的开门过程示意图；
图69是本申请实施方式的驱动杠杆非正常触发后的状态示意图；
图70至图73是本申请实施方式的家用电器的部分结构示意图；
图74是本申请实施方式的家用电器的分解示意图；
图75至图77是本申请实施方式的家用电器的部分结构示意图；
图78至图82是本申请实施方式的保护盖的结构示意图，其中，图79是图78的A-A线的剖面图；
图83至图88是本申请实施方式的支架的结构示意图，其中，图84是图83的C-C线的剖面图；
图89至图94是本申请实施方式的驱动杠杆的结构示意图，其中，图90是图89的D-D线的剖面图；
图95至图97是本申请实施方式的家用电器的(双驱动弹性件)关门状态示意图；
图98是本申请实施方式的驱动杠杆非正常触发后的状态示意图；
图99至图100是本申请实施方式的家用电器的部分结构示意图；
图101是本申请实施方式的家用电器的(单驱动弹性件)关门状态示意图。
具体实施方式
下面详细描述本申请的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
本文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，本文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参图1至图11，及图50至图51，本申请第一方面实施方式的一种家用电器100，包括门体12、支架14和缓冲组件16。门体12具有门勾。门体12转动连接支架14。缓冲组件16安装在支架14，缓冲组件16包括一个第一驱动弹性件 60、一个第二驱动弹性件64、阻尼器18和驱动杠杆20，阻尼器18活动连接驱动杠杆20，驱动杠杆20上设有连接部70，第一驱动弹性件60和第二驱动弹性件64连接连接部70。
在门体12打开的情况下，门勾脱离驱动杠杆20，第一驱动弹性件60与第一连线L1之间的夹角T1选自范围0度至60度，第二驱动弹性件64与第二连线L2之间的夹角T2选自范围0度至60度，第一连线L1为第一驱动弹性件60与连接部70形成的第一连接处与驱动杠杆20转动中心之间的连线，第二连线L2为第二驱动弹性件64与连接部70形成的第二连接处与驱动杠杆20转动中心之间的连线。
在门体12关闭的情况下，门勾抵触驱动杠杆20以挤压阻尼器18。
上述家用电器100中，在门体12打开的情况下，通过设定第一驱动弹性件60和第二驱动弹性件64与目标连线之间的角度范围，使得门体12在关闭过程中，两个驱动弹性件能够提供合适的驱动力，门体12能够顺利关闭。
具体地，家用电器100包括但不限于微波炉、烤箱(包括电烤箱、微波烤箱和微蒸烤一体机)、蒸箱、洗碗机、消毒柜等具有门体12的家用电器100。本申请实施方式以家用电器100是微波炉为例进行举例说明，以家用电器100是微波炉为例进行举例说明是为了方便理解本申请的实施，不应理解为对本申请的限定。
门体12可以采用双层玻璃的门体12；门体12还可以采用防漏波玻璃的门体12。采用玻璃门体12的其中一个好处是方便用户在外面观察家用电器100内的食物情况。另外，门体12的外表面可设置有把手，方便用户进行开关门操作。
门勾的材料可以全部选自金属材料或塑料材料，或不同材料组合制成。门勾整体呈长条状，门勾末端设有勾状部86，勾状部86可以便于卡合。门勾数量可根据实际情况来设定，如，门勾的数量可以是单个、两个、或多于两个。在本申请的实施方式中，门勾包括两个门勾，即上门勾26和下门勾28，如图12和图13所示。在一个实施方式中，上门勾26和下门勾28可以是连接形成一体结构件，固定在门体12上。在其他实施方式中，上门勾26和下门勾28可以是分开固定在门体12上，门勾也可以可移动地连接在门体12上。在此不作具体限定。
在门体12关闭过程中，主要是下门勾28受到缓冲组件16的缓冲力以减少关门噪音。也就是说，在门体12关闭的情况下，下门勾28抵触驱动杠杆20以挤压阻尼器18。在门体12打开的情况下，下门勾28脱离驱动杠杆20，阻尼器18的长度最长。可以理解，在其他实施方式中，也可以上门勾26受到缓冲组件16的缓冲力以减少关门噪音，或上门勾26和下门勾28均受到缓冲组件16的缓冲力以减少关门噪音，在此不作具体限定。以下的实施方式中，以下门勾28受到缓冲组件16的缓冲力为例进行说明。
请参图10至图11、图40至图41，家用电器100还包括斜块30和压簧32，斜块30和压簧32安装在支架14上，斜块30内设有收容空间，压簧32部分地容置在收容空间，压簧32的顶部抵接收容空间顶壁，压簧32的底部抵接在支架14上伸入收容空间内的支撑件。斜块30的顶部具有斜面74，斜面74沿竖直面向支架14内部向上倾斜。
在门体12关闭过程中，上门勾26的末端与斜面74抵接而使斜块30下降压缩压簧32，在上门勾26的末端跨过斜面74的情况下，斜块30在压簧32的作用下卡住上门勾26。
在门体12打开过程中，上门勾26压住斜块30向下移动，上门勾26向外移动，直到完全脱离。压簧32将斜块30复位。
本申请实施方式所说的门体12打开，可以是指，门体12打开时，下门勾28没有对驱动杠杆20施加使驱动杠杆20转动的作用力，或施加的作用力不足以让驱动杠杆20转动的状态，如图1至图4，所示。所说的门体12关闭，可以指下门勾28处于关门行程最终位置时的状态，如图63至图65所示。
家用电器100可包括腔体(图未示)，支架14可以固定在腔体，门体12与腔体转动连接。腔体开设有腔室，腔室前侧具有开口，门体12用于关闭和打开开口。腔室内可以放置待加热的食物。
阻尼器18包括本体22和杆件24，本体22可转动地安装在支架14上，杆件24可移动地连接本体22，在门体12打开和关闭过程中，本体22和杆件24可以转动以适应驱动杠杆20的转动。可以理解，在其他实施方式中，本体22也可以固定不转动。
在一个实施方式中，缓冲组件16还包括摆块34，摆块34转动连接驱动杠杆20和阻尼器18，在下门勾28向驱动杠杆20施加作用力的情况下，驱动杠杆20转动一预设角度后带动摆块34压缩阻尼器18，阻尼器18被压缩时向下门勾28提供阻尼并发生转动。如此，在下门勾28向驱动杠杆20施加作用力的情况下，驱动杠杆20可先转动一预设角度后带动摆块34压缩阻尼器18，进而可实现在下门勾28作用于驱动杠杆20初期时，下门勾28不至于被阻尼器18回弹而造成关门不顺畅甚至停滞现象，提升了用户体验。
具体地，请参图34至图39，驱动杠杆20开设有容置槽35，容置槽35的顶部开设转动空间37，容置槽35的底部开设有摆动空间39，摆块34的一端转动收容在转动空间37，摆块34的另一端收容在摆动空间39，摆动空间39用于提供驱 动杠杆20转动预设角度的空间。如此，可以使得驱动杠杆20在转过预设角度后再带动摆块34转动。
驱动杠杆20包括间隔的第一臂52和第二臂54，第一臂52和第二臂54之间形成有间隔，第二臂54较第一臂52更靠近门体12(门勾)方向，相对于驱动杠杆20的转轴，第二臂54较第一臂52更短。
第一臂52开设有容置槽35，具体是，在图34所示的实施方式中，第一臂52的右侧开设有容置槽35，摆块34位于容置槽35中。
请参图14至图16，摆块34的顶端具有一连接转动部41，连接转动部41转动地收容在转动空间37。在一个例子中，转动空间37大致呈圆柱形，连接转动部41呈与转动空间37相匹配的圆柱形。
摆动空间39的设置可以使得驱动杠杆20刚开始转动时，不会作用于摆块34，进而不会压缩阻尼器18，使得下门勾28在抵接驱动杠杆20初期，不会受到阻尼器18的阻力而引起回弹甚至停滞现象。摆动空间39的大小可以决定预设角度的大小，可以根据实际情况进行标定。
进一步地，摆动空间39的右侧设有凸起43，该凸起43用于将摆块34限定在容置槽35内，避免摆块34脱离容置槽35。
请参图14，摆块34的顶端还设有开槽45，阻尼器18的杆件24穿设开槽45以与摆块34转动连接，开槽45的设置可以在阻尼器18转动过程中，对杆件24进行避让。
请参图4，在门体12关闭过程中，下门勾28推动驱动杠杆20逆时针转动，驱动杠杆20转动预设角度后(消除了驱动杠杆20与摆块34之间的间隙)，使摆块34向杆件24施加作用力，以推动杆件24向本体22内移动，本体22对杆件24提供阻尼力，减少门体12的关闭速度，进而可减少关门噪音。请参图68，在门体12打开过程中，下门勾28带动驱动杠杆20顺时针转动，驱动杠杆20可通过摆块34带动杆件24移动，同时，杆件24被本体22驱动而伸出本体22外，直至驱动杠杆20停止转动，阻尼器18回复到初始状态。
在某些实施方式中，请参图30，支架14上设有限位柱38，在门体12关闭的情况下，限位柱38抵接驱动杠杆20并限制驱动杠杆20的转动。如此，可以对驱动杠杆20的转动范围进行限制，防止驱动杠杆20的损坏。
具体地，限位柱38的位置设置可以使得驱动杠杆20的转动不超过限位柱38所在位置。该位置是关门后驱动杠杆20转动到的位置。
本申请实施方式的家用电器100包括两个驱动弹性件：第一驱动弹性件60和第二驱动弹性件64，两个驱动弹性件与驱动杠杆20分别位于支架14的相背两侧，驱动杠杆20与阻尼器18位于支架14同一侧。支架14开设有过孔66，如图32至图33，连接部70穿设过孔66，以使得连接部70能够与两个驱动弹性件连接，两个驱动弹性件可用于带动驱动杠杆20加速转动以使驱动杠杆20带动门体12加速。如此，可以实现下门勾28(门体12)的先加速，再减速的过程。
在门体12打开的情况下，第一驱动弹性件60与第一连线L1之间的夹角T1选自范围0度至60度，在一个例子中，夹角T1可以是0度、20度、30度、40度、50度或60度，或0度与60度之间的其他度数。
第二驱动弹性件64与第二连线L2之间的夹角T2选自范围0度至60度，在一个例子中，夹角T2可以是0度、20度、30度、40度、50度或60度，或0度与60度之间的其他度数。夹角T1与夹角T2可以是相同的，也可以是不同的。由于关门前的驱动弹性件的位置和角度决定了关门后两个驱动弹性件的位置和角度。两个驱动弹性件的角度和位置是可以跟随驱动杠杆20的转动而自适应变化，只要确定驱动杠杆20转动角度就可以确定两个驱动弹性件关门后的最终位置和角度。因此，可通过在门体12打开的情况下，设置两个驱动弹性件与目标连线之间的夹角大小，可以确定关门前的两个驱动弹性件的位置和角度。
在图示的实施方式中，驱动弹性件的具体结构为弹簧。在其他实施方式中，驱动弹性件还可以为其他结构的弹性件，而不限于弹簧。
位于支架14相背两侧的驱动弹性件和驱动杠杆20，可以将相关结构件分散布置，避免在支架14同一侧面太多结构件而导致空间减少及重量过于集中，不利于结构件的配置。
由于驱动杠杆20可带动下门勾28加速，使得在加速阶段，门体12可以依靠驱动杠杆20的作用力去关闭。而在下门勾28加速过程中，当驱动杠杆20转动，之后阻尼器18被压缩。随着关门过程的继续，驱动杠杆20持续压缩阻尼器18的杆件24，阻尼器18的压缩量增大，提供的阻尼力也在增大，当阻尼器18提供的阻尼力大于驱动弹性件提供的驱动力时，下门勾28开始减速，在减速阶段，使得门体12关闭时的噪音不至于太大。
第一驱动弹性件60位于驱动第二驱动弹性件64的上方。请参图3和图32，第一驱动弹性件60的一端勾住支架14上的定位柱68，另一端勾住驱动杠杆20上的连接部70。第二驱动弹性件64的一端勾住支架14上的另一定位柱68，另一端勾住连接部70。
在某些实施方式中，请参图50，在门体12打开的情况下，第一驱动弹性件60与第二驱动弹性件64之间的夹角T3选自范围7度至110度。如此，可以方便确定两个驱动弹性件的角度设置。
具体地，可以通过设定其中一个驱动弹性件与目标连线之间的夹角，及两个驱动弹性件之间的夹角T3，即可以确定另一个驱动弹性件与目标连线之间的夹角。
第一驱动弹性件60与第二驱动弹性件64之间的夹角T3选自范围7度至110度，在一个例子中，夹角T3可以是7度、10度、30度、50度、70度、90度或110度，或7度与110度之间的其他度数。
在某些实施方式中，请参图51，在门体12打开的情况下，第一驱动弹性件60和第二驱动弹性件64的合力F位于驱动杠杆20转动中心O的上方；
请参图60，在门体12关闭的情况下，第一驱动弹性件60和第二驱动弹性件64的合力F位于驱动杠杆20转动中心O的下方。如此，可以实现使得驱动杠杆20在关门前和关门时可以沿不同方向转动，有利于实现紧密关门。
具体地，请结合图51，两个驱动弹性件对驱动杠杆20的合力F位于驱动杠杆20转动中心O的上方，驱动杠杆20在两个驱动弹性件的合力作用下，可以沿第一方向转动。请结合图60，两个驱动弹性件对驱动杠杆20的合力F位于驱动杠杆20转动中心O的下方，驱动杠杆20在两个驱动弹性件的合力F作用下，可以沿第二方向转动。第一方向与第二方向相反。在图51中，第一方向为逆时针方向，在图60中，第二方向为顺时针方向。
在下门勾28还没有抵接驱动杠杆20时，驱动杠杆20静止，两个驱动弹性件的合力F作用于驱动杠杆20，使得驱动杠杆20可以顺时针转动。在下门勾28抵接驱动杠杆20，驱动杠杆20在下门勾28的作用下，发生逆时针转动，使得两个驱动弹性件对驱动杠杆20的合力F切换至驱动杠杆20转动中心O的下方，驱动杠杆20从顺时针转动转换为逆时针转动，此时，驱动杠杆20没有受到限位，在两个驱动弹性件的合力F作用下，继续沿逆时针转动进而带动下门勾28加速。
驱动杠杆20具有转动方向转换的过程，会使得驱动杠杆20转动的角度较大，驱动杠杆20转动角度较大可以带动下门勾28更能深入腔体中，进而使得门体12关上时更紧密。
在某些实施方式中，在门体12打开的情况下，第一驱动弹性件60的切向分力F1向驱动杠杆20提供沿第一方向转动的转矩，第二驱动弹性件64的切向分力F2向驱动杠杆20提供沿第二方向转动的转矩，第一方向与第二方向相反，第一驱动弹性件60提供的转矩大于第二驱动弹性件64提供的转矩。如此，可以使驱动杠杆20沿第一方向转动。
请结合图51，在图51中，第一方向为逆时针方向，第二方向为顺时针方向。两个驱动弹性件的合力F位于驱动杠杆20转动中心O的上方，使转动杠杆20可以逆时针转动。从图51可以看出，第一驱动弹性件60的切向分力F1向驱动杠杆20提供逆时针转动的转矩，第二驱动弹性件64的切向分力F2给驱动杠杆20提供顺时针转动的转矩，第一驱动弹性件60提供的转矩大于第二驱动弹性件64提供的转矩，因此，驱动杠杆20可以逆时针转动。
在某些实施方式中，在门体12关闭的情况下，第一驱动弹性件60的切向分力F1向驱动杠杆20提供沿第二方向转动的转矩，第二驱动弹性件64的切向分力F2向驱动杠杆20提供沿第二方向转动的转矩，第二驱动弹性件64提供的转矩大于第一驱动弹性件60提供的转矩。如此，可以使得门体12关闭紧密。
具体地，请参图60，第二方向为顺时针方向，两个驱动弹性件提供的转矩均可以使驱动杠杆20沿顺时针转动，使得驱动杠杆20可以通过下门勾28带动门体12关闭得更紧密。
在本实施方式中，可以将关门过程划分为三个过程：关门过程一，关门过程二和关门过程三。
请参图46至图51，在关门过程一开始时，下门勾28碰触驱动杠杆20的瞬间状态，从图51可以看出，此时两个驱动弹性件的合力F位于驱动杠杆20转动中心O的上方，迫使驱动杠杆20逆时针转动。从图51可以看出，第一驱动弹性件60的切向分力F1向驱动杠杆20提供逆时针转动的转矩，第二驱动弹性件64的切向分力F2向驱动杠杆20提供顺时针转动的转矩，第一驱动弹性件60提供的转矩大于第二驱动弹性件64提供的转矩，因此，驱动杠杆20可以逆时针转动，但被限位住，因此，驱动杠杆20处于静止。
关门过程二：下门勾28被驱动杠杆20带动向支架12内运动(可以理解为“下门勾28被驱动杠杆20吸进去”)。
请参图52至图56，两个驱动弹性件的合力F位于驱动杠杆20转动中心O的下方，且两个驱动弹性件都位于驱动杠杆20转动中心O的下方，此时，两个驱动弹性件都是让驱动杠杆20顺时针转动。两个驱动弹性件提供的切向分力都比较小，进而提供给驱动杠杆20的转矩较小。且第一驱动弹性件60的长度在关门过程一到过程二的过程中，先变长后变短，弹性力先大后小。而第二驱动弹性件64在关门过程一到过程二的过程中，长度一直在变小，弹性力也是在变小。此过程，第二驱动弹性件64贡献了主要的转矩。
关门过程三：下门勾28开始推动转动杠杆20转动。
请参图57至图60，将关门过程二到关门过程三，两个驱动弹性件的合力F提供给驱动杠杆20的转矩一直变大。即两 个驱动弹性件的切向分力提供的转矩一直在变大。第二驱动弹性件64贡献的转矩较大。直至门体12处于关闭位置。
请参图61至图62，从图中可以看出，两个驱动弹性件的长度变化都较小，在整个运动过程中，也可以近似的看作长度不变，只是力的方向在变化。图61为第一驱动弹性件60的长度变化，其中，中圈的半径是门体12打开时第一驱动弹性件60的长度，最外圈的半径是门体12在关闭过程中第一驱动弹性件60的长度，最内圈的半径是门体12关闭时第一驱动弹性件60的长度。图62为第二驱动弹性件64的长度变化，其中，外圈的半径是门体12打开时第二驱动弹性件64的长度，内圈的半径是门体12关闭时第二驱动弹性件64的长度。
在某些实施方式中，请参图4，缓冲组件16还包括转动杠杆40，支架14上设有开关，转动杠杆40转动连接支架14，在门体12关闭的情况下，门勾抵触转动杠杆40以使得转动杠杆40触发开关。如此，增加转动杠杆40，一方面，可以满足安规要求，另一方面，可以进一步减少关门噪音。
具体地，某些家用电器100，需要门体12关闭好后，才能允许家用电器100工作。例如微波炉，需要门体12关闭好后，才能允许微波炉向腔体内发射微波来加热食物，以防止门未关好而出现漏波现象。
在门体12关闭的情况下，下门勾28抵触转动杠杆40以使转动杠杆40触发开关，使得家用电器100的控制板获取到相关的触发信号，再控制家用电器100运行，满足安规要求。
在门体12关闭过程中，下门勾28靠近转动杠杆40，当下门勾28抵接转动杠杆40时，可以驱动转动杠杆40顺时针转动，在这过程中，可以对下门勾28及门体12进行减速，进而进一步减少关门噪音。
在某些实施方式中，请参图5、图6和图42至图45，转动杠杆40包括转动臂42和接触臂44，转动臂42转动连接支架14，接触臂44连接转动臂42，请参图5、图6和图30，支架14开设有槽位46，接触臂44至少部分地位于槽位46内，接触臂44用于触发开关。如此，可以保护转动杠杆40不会被人为触发，符合安规要求。
具体地，接触臂44远离转动臂42的转轴处，门体12关闭过程中，下门勾28可以经由连接支架14的前板51的下通孔48伸入支架14，并推动接触臂44转动，进而带动整个转动杠杆40转动。接触臂44至少部分地位于槽位46内，可以防止外界细杆等物品从下通孔48伸入支架14内推动接触臂44转动而人为地触发开关，使得家用电器100误认为门体12已关好，进而启动所导致的安全问题。
另外，保护盖36的内侧还设有凸块50，凸块50的形状与槽位46的形状相匹配，以对接触臂44进行合围，进一步保证了接触臂44不会被误触发，同时，也能够使接触臂44的转动更稳定。
在某些实施方式中，请参图34至图39，驱动杠杆20包括间隔的第一臂52和第二臂54，在门体12关闭过程中，门勾从第二臂54下方经过后与第一臂52抵接以驱动驱动杠杆20转动，接触臂44设有凸柱56，第一臂52设有缺口58，在门体12关闭过程中，第一臂52通过缺口58避让凸柱56。如此，可以保证转动杠杆40的接触臂44能顺利通过，不产生干涉。
具体地，请结合图4，在门体12打开的情况下，第一臂52和第二臂54均位于凸柱56左边。第一臂52较长，在门体12关闭的过程中，下门勾28先从第二臂54下方经过后，进入第一臂52与第二臂54之间的空间，然后下门勾28与第一臂52抵接以驱动转杠杆逆时针转动，驱动杠杆20转动过程中，第二臂54卡住下门勾28，使驱动杠杆20带动下门勾28继续关门，第一臂52朝凸柱56方向转动，通过设置缺口58，使得第一臂52经过时，第一臂52与凸柱56不产生干涉，使下门勾28能够抵接凸柱56并驱动转动杠杆40顺时针转动，门体12能够顺利关闭，开关能够顺利触发。门体12关闭后，下门勾28的末端与凸柱56位于第一臂52与第二臂54之间的空间，如图65所示。
在某些实施方式中，请参图30，支架14还设有挡块72，挡块72遮挡转动臂42的至少一部分。如此，如此，可以保护转动杠杆40不会被人为触发，符合安规要求。
具体地，门体12关闭过程中，下门勾28可以经由支架14上的下通孔48伸入支架14，并推动接触臂44转动，进而带动整个转动杠杆40转动。通过设置挡块72，挡块72遮挡转动臂42的至少一部分，可以防止外界细杆等物品从下通孔48伸入支架14内推动转动臂42转动而人为地触发开关，使得家用电器100误认为门体12已关好，进而启动所导致的安全问题。
另外，请参图20，保护盖36的内侧还设有另一挡块72，支架14上的挡块72形状与保护盖36上的挡块72形状相匹配，以对转动臂42进行全遮挡，进一步保证了转动臂42不会被误触发。
可以理解，在其他实施方式中，支架14上的挡块72可以对转动臂42进行全遮挡。
在某些实施方式中，挡块72的顶面包括斜面74，在门体12关闭的过程中，斜面74用于导引门勾与接触臂44抵接。如此，可以保证门勾在门体12关闭过程中会进入到正常位置，与转动杠杆40接触。
具体地，在门体12关闭过程中，下门勾28靠近转动杠杆40移动，当下门勾28到达斜面74时，斜面74将下门勾28 末端导向接触臂44，使下门勾28能够与接触臂44的凸柱56接触，在下门勾28继续移动时，下门勾28驱动转动杠杆40，使得转动杠杆40可以触发开关。
在某些实施方式中，门勾包括下门勾28，支架14上设有第一开关76，开关包括第二开关78和第三开关80。
缓冲组件16被配置为，在门体12关闭过程中，驱动杠杆20在下门勾28的驱动下，先触发第一开关76，转动杠杆40在下门勾28的驱动下，再触发第二开关78，之后触发第三开关80。如此，驱动杠杆20触发第一开关76后，转动杠杆40依次触发第二开关78和第三开关80，使得第一开关76、第二开关78和第三开关80按顺序触发，避免了开关触发顺序混乱的问题。
具体地，家用电器100可包括微波炉，微波炉包括第一开关76、第二开关78和第三开关80。第一开关76可以是监控开关，监控开关用于监控整个微波炉的回路。第二开关78可以是次级开关，次级开关用于控制灯和散热风扇或其他组件的开启。第三开关80可以是初级开关，初级开关用于控制微波炉的微波功能。在门体12关闭过程中，第一开关76、第二开关78和第三开关80依次被触发，以生成相应的电信号，使微波炉的控制板可以控制微波炉运行。
在用户使用微波炉的过程中，三个开关的触发顺序尤为重要。在关门过程中，触发顺序应为：首先触发监控开关，其次触发次级开关，最后触发初级开关。如此，可以保证用户的使用安全及符合安规要求。
可以理解，在其他实施方式中，开关的数量不限于三个，还可以是其他数量的开关，开关的数量和触发顺序按实际进行设定，在此不作具体限定。
在某些实施方式中，门勾末端具有第一导向面82；
请参图34至图39，驱动杠杆20包括间隔的第一臂52和第二臂54，第二臂54侧面具有第二导向面84，在门体12关闭的过程中，第一导向面82与第二导向面84配合连接，使门勾末端绕过第二臂54后第二臂54卡住门勾。如此，在门体12关闭的过程中，第一导向面82与第二导向面84配合连接，使门勾末端绕过第二臂54后第二臂54卡住门勾，实现了一种强制关门结构设计，当驱动杠杆20被非正常触发以后，可以不用进行拆机维修，用户可以自己强制关门后恢复正常。
具体地，请结合图22至图27，下门勾28末端设有勾状部86，勾状部86可以便于卡合。下门勾28包括第一导向面82，第一导向面82可以设置在勾状部86，如此可以便于用户强制关门，使得下门勾28与驱动杠杆20恢复正常配合的位置。
在正常关门的情况下，下门勾28在一定的初速度条件下，下门勾28接触驱动杠杆20的第一臂52，下门勾28可以使得驱动杠杆20转动，驱动杠杆20转动后触发第一开关76，之后驱动杠杆20的第二臂54卡住下门勾28，带动下门勾28继续关门，下门勾28抵接接触臂44使转动杠杆40转动。
然而，在现实生活中很容易因为用户或儿童等使用非正常手段迫使驱动杠杆20被触发(如图69所示)，例如：使用竹签、手指等细长物品伸入支架14拨动驱动杠杆20，迫使驱动杠杆20被触发，导致驱动杠杆20旋转，下门勾28与驱动杠杆20不能配合，导致门体12无法关上，进而导致家用电器100丧失使用功能，甚至需要拆机维修。本申请实施方式的家用电器100，下门勾28末端具有第一导向面82，驱动杠杆20包括第二导向面84，第一导向面82与第二导向面84配合连接，可以使门勾末端绕过第二臂54后第二臂54卡住下门勾28，用户使用较大的力即可恢复下门勾28与驱动杠杆20正常的配合关系，不必拆机维修。
在一个实施方式中，下门勾28末端可以通过塑料的弹性变形，强制穿过驱动杠杆20的第二臂54与支架14之间的间隙。第一导向面82与第二导向面84可以是导向斜面。
以下说明下本申请实施方式的开关门的原理过程。
初始和终止状态的说明：初始时刻(没关门的时刻)，两个驱动弹性件连接支架14和驱动杠杆20，两驱动弹性件的合力F位于驱动杠杆20转动中心O的上方，此时驱动弹性件的合力F迫使驱动杠杆20具有顺时针转动的趋势，两个驱动弹性件一直保持拉伸状态。同时，驱动杠杆20被支架14上的止位柱88限制住顺时针运动，摆块34分别与阻尼器18和驱动杠杆20连接，且摆块34可绕驱动杠杆20自由转动，压簧32一直处于压缩状态。终止时刻(开门后的时刻)，下门勾28拉动驱动杠杆20向外移动，此时摆块34与驱动杠杆20之间的角度最大，并带动第一驱动弹性件60和第二驱动弹性件64和阻尼器18运动。在运动过程中，当两驱动弹性件的合力F位于驱动杠杆20转动中心O的上方时，两个驱动弹性件提供给驱动杠杆20的合力F由逆时针转动的力变为使驱动杠杆20顺时针转动的力。当下门勾28被拉出后，驱动杠杆20主动沿顺时针转动到初始位置，同时第一和第二驱动弹性件64和阻尼器18恢复到初始状态。
(一)实现缓关门/软关门的平稳关门过程：
如图4和图63至图65所示，下门勾28在一定的初速度条件下，最先接触驱动杠杆20的第一臂52，并迫使驱动杠杆20绕着转轴逆时针转动预设角度后与摆块34重合。该预设角度过程中，阻尼器18并未起到阻碍作用(即，下门勾28在 与第一臂52碰撞后，无明显回弹现象，以免下门勾28在第一臂52与第二臂54之间的空间内来回碰撞，造成停滞现象)。同时，两驱动弹性件的合力F转动到驱动杠杆20转动中心O的下方，驱动杠杆20的第二臂54快速与下门勾28接触。
如图65所示，因两驱动弹性件的合力F位于驱动杠杆20转动中心O的下方时，驱动弹性件合力F变为使驱动杠杆20逆时针转动的力，驱动杠杆20带动摆块34一起转动，并驱动下门勾28运动；同时上门勾26伸入前板51的上通孔90，开始将斜块30压下。驱动杠杆20先触发监控开关。随后，下门勾28末端碰触转动杠杆40的接触臂44的凸柱56，转动杠杆40开始转动，依次触发次级开关和初级开关(次级开关叠在初级开关上方)。同时，上门勾26末端压过斜块30顶部，斜块30开始上升，抵住上门勾26末端左侧的圆弧。直到停止运动，关门结束。
(二)实现缓关门/软关门的开门过程：
请结合图66至图68和图4，人力驱动下，下门勾28带动驱动杠杆20顺时针转动，首先下门勾28与转动杠杆40的接触臂44的凸柱56脱离，初级开关和次级开关依次不再接通。然后上门勾26压住斜块30，向外移动，直到完全脱离。然后，驱动杠杆20与监控开关脱离接触。在此过程中，两个驱动弹性件的合力F由迫使驱动杠杆20逆时针转动的力变为顺时针转动的力。当下门勾28被拉出后，驱动杠杆20主动转动到初始位置。最后，第一驱动弹性件、第二驱动弹性件64、斜块30、转动杠杆40和阻尼器18都恢复到初始状态，开门结束。
(三)强制关门过程：
如图69所示，门没关上，但驱动杠杆20被触发。此时，可以强力推动门体12进行关门动作，下门勾28可以回到正常的关门位置。这是因为，下门勾28末端可以通过塑料的弹性变形，强制穿过驱动杠杆20的第二臂54与支架14之间的间隙。两个导向面可以保证强制关门顺利。
请参图70至图77，本申请第二方面实施方式的一种家用电器100，包括门体12、支架14和缓冲组件16。门体12具有门勾。门体12转动连接支架14。缓冲组件16安装在支架14，缓冲组件16包括可回复的阻尼器18和驱动杠杆20，驱动杠杆20转动地连接支架14，阻尼器18包括本体22和杆件24，本体22固定在支架14，杆件24可移动地连接本体22。
在门体12关闭的情况下，门勾抵触驱动杠杆20以压缩杆件24。在门体12打开的情况下，门勾脱离驱动杠杆20，阻尼器18处于自然长度状态，杆件24与驱动杠杆20之间有间隙。
上述家用电器100中，采用可回复的阻尼器18，阻尼器18和驱动杠杆20不再进行联动，可省略摆块，减少零部件的使用，简化运动过程。另外，在相关技术中，使用的阻尼器是单向阻尼，与摆块连接，单向阻尼无法自动回复原长，而且该阻尼器与摆块连接的位置尺寸较小，对阻尼器的性能要求较高，成本较高。本申请实施方式的家用电器100，采用可回复的阻尼器18，当压缩阻尼器18的外力撤消后，可回复的阻尼器18可自动回复原长，无需通过摆块与驱动杠杆20连接，因此，可以采用成本更低的阻尼器18，进而降低零部件的成本，易于维护。
具体地，家用电器100包括但不限于微波炉、烤箱(包括电烤箱、微波烤箱和微蒸烤一体机)、蒸箱、洗碗机、消毒柜等具有门体12的家用电器100。本申请实施方式以家用电器100是微波炉为例进行举例说明，以家用电器100是微波炉为例进行举例说明是为了方便理解本申请的实施，不应理解为对本申请的限定。
门体12可以采用双层玻璃的门体12；门体12还可以采用防漏波玻璃的门体12。采用玻璃门体12的其中一个好处是方便用户在外面观察家用电器100内的食物情况。另外，门体12的外表面可设置有把手，方便用户进行开关门操作。
门勾的材料可以全部选自金属材料或塑料材料，或不同材料组合制成。门勾整体呈长条状，门勾末端设有勾状部86，勾状部86可以便于卡合。门勾数量可根据实际情况来设定，如，门勾的数量可以是单个、两个、或多于两个。在本申请的实施方式中，门勾包括两个门勾，即上门勾26和下门勾28，如图12和图13所示。在一个实施方式中，上门勾26和下门勾28可以是连接形成一体结构件，固定在门体12上。在其他实施方式中，上门勾26和下门勾28可以是分开固定在门体12上。在此不作具体限定。
在门体12关闭过程中，主要是下门勾28受到缓冲组件16的缓冲力以减少关门噪音。也就是说，在门体12关闭的情况下，下门勾28抵触驱动杠杆20以压缩杆件24。在门体12打开的情况下，下门勾28脱离驱动杠杆20，阻尼器18处于自然长度状态，杆件24与驱动杠杆20之间有间隙。可以理解，在其他实施方式中，也可以上门勾26受到缓冲组件16的缓冲力以减少关门噪音，或上门勾26和下门勾28均受到缓冲组件16的缓冲力以减少关门噪音，在此不作具体限定。以下的实施方式中，以下门勾28受到缓冲组件16的缓冲力为例进行说明。
请参图74、图40至图41，家用电器100还包括斜块30和压簧32，斜块30和压簧32安装在支架14上，斜块30内设有收容空间，压簧32部分地容置在收容空间，压簧32的顶部抵接收容空间顶壁，压簧32的底部抵接在支架14上伸入收容空间内的支撑件。斜块30的顶部具有斜面74，斜面74沿竖直面向支架14内部向上倾斜。
在门体12关闭过程中，上门勾26的末端与斜面74抵接而使斜块30下降压缩压簧32，在上门勾26的末端跨过斜面 74的情况下，斜块30在压簧32的作用下卡住上门勾26。
在门体12打开过程中，上门勾26压住斜块30向下移动，上门勾26向外移动，直到完全脱离。压簧32将斜块30复位。
家用电器100可包括腔体(图未示)，支架14可以固定在腔体，门体12与腔体转动连接。腔体开设有腔室，腔室前侧具有开口，门体12用于关闭和打开开口。腔室内可以放置待加热的食物。
阻尼器18的本体22固定在支架14上，在门体12打开和关闭过程中，本体22均固定不动，在门体12关闭过程中，下门勾28推动驱动杠杆20逆时针转动，驱动杠杆20转动一定角度后(消除了驱动杠杆20与杆件24之间的间隙)与杆件24接触并推动杆件24向本体22内移动，本体22对杆件24提供阻尼力，减少门体12的关闭速度，进而可减少关门噪音。在门体12打开过程中，下门勾28带动驱动杠杆20顺时针转动，杆件24被本体22驱动而伸出本体22外，直至杆件24与驱动杠杆20脱离，阻尼器18回复到自然长度。此时，阻尼器18处于自然长度状态。阻尼器18处于自然长度状态，可以理解为，在阻尼器18没有损坏的情况下，杆件24没有受力时阻尼器18所处的状态，或作用于杆件24的力不足以使杆件24向本体22内移动时，阻尼器18所处的状态。
另外，在下门勾28脱离驱动杠杆20，杆件24与驱动杠杆20之间有间隙。可以使得在门体12关闭过程中，下门勾28在一定的初速度条件下，最先接触驱动杠杆20，并迫使驱动杠杆20绕着转轴逆时针转动，该一小段过程因间隙的存在，阻尼器18并未起到阻碍作用，这样可使得下门勾28在与驱动杠杆20碰撞后，无明显回弹现象，以免下门勾28在驱动杠杆20的空腔内来回碰撞，造成停滞现象。
在某些实施方式中，请参图83，支架14设有容置槽34，本体22至少部分地固定在容置槽34。如此，可以便于阻尼器18的安装。
具体地，本体22可以呈圆柱形本体22，在一个实施方式中，本体22的一部分可以位于容置槽34内。阻尼器18安装时，本体22可以置入支架14上的容置槽34内，便利了阻尼器18的安装。
请结合图70、图79至图82，支架14上还设有保护盖36，保护盖36设有另一容置槽34，保护盖36上的容置槽34可以容置本体22的另一部分，保护盖36连接支架14时，两个容置槽34可以合围容置本体22，以进一步固定本体22。在一个实施方式中，支架14和保护盖36可以通过卡扣的方式连接。
在某些实施方式中，请参图85，支架14上设有限位柱38，在门体12关闭的情况下，限位柱38抵接驱动杠杆20并限制驱动杠杆20的转动。如此，可以对驱动杠杆20的转动范围进行限制，防止驱动杠杆20的损坏。
具体地，限位柱38的位置设置可以使得驱动杠杆20的转动不超过限位柱38所在位置。该位置是关门后驱动杠杆20转动到的位置。
在某些实施方式中，缓冲组件16还包括转动杠杆40，支架14上设有开关，转动杠杆40转动连接支架14，
在门体12关闭的情况下，门勾抵触转动杠杆40以使得转动杠杆40触发开关。如此，增加转动杠杆40，一方面，可以满足安规要求，另一方面，可以进一步减少关门噪音。
具体地，某些家用电器100，需要门体12关闭好后，才能允许家用电器100工作。例如微波炉，需要门体12关闭好后，才能允许微波炉向腔体内发射微波来加热食物，以防止门未关好而出现漏波现象。
在门体12关闭的情况下，下门勾28抵触转动杠杆40以使转动杠杆40触发开关，使得家用电器100的控制板获取到相关的触发信号，再控制家用电器100运行，满足安规要求。
在门体12关闭过程中，下门勾28靠近转动杠杆40，当下门勾28抵接转动杠杆40时，可以驱动转动杠杆40顺时针转动，在这过程中，可以对下门勾28及门体12进行减速，进而进一步减少关门噪音。
在某些实施方式中，请参图42至图45，转动杠杆40包括转动臂42和接触臂44，转动臂42转动连接支架14，接触臂44连接转动臂42，请参图88，支架14开设有槽位46，接触臂44至少部分地位于槽位46内，接触臂44用于触发开关。如此，可以保护转动杠杆40不会被人为触发，符合安规要求。
具体地，接触臂44远离转动臂42的转轴处，门体12关闭过程中，下门勾28可以经由连接支架14的前板51的下通孔48伸入支架14，并推动接触臂44转动，进而带动整个转动杠杆40转动。接触臂44至少部分地位于槽位46内，可以防止外界细杆等物品从下通孔48伸入支架14内推动接触臂44转动而人为地触发开关，使得家用电器100误认为门体12已关好，进而启动所导致的安全问题。
另外，保护盖36的内侧还设有凸块50，凸块50的形状与槽位46的形状相匹配，以对接触臂44进行合围，进一步保证了接触臂44不会被误触发，同时，也能够使接触臂44的转动更稳定。
在某些实施方式中，请参图89至图94，驱动杠杆20包括间隔的第一臂52和第二臂54，在门体12关闭过程中，门 勾从第二臂54下方经过后与第一臂52抵接以驱动驱动杠杆20转动，
接触臂44设有凸柱56，
第一臂52设有缺口58，在门体12关闭过程中，第一臂52通过缺口58避让凸柱56。如此，可以保证转动杠杆40的接触臂44能顺利通过，不产生干涉。
具体地，请结合图73，在门体12打开的情况下，第一臂52和第二臂54均位于凸柱56左边。第一臂52较长，在门体12关闭的过程中，下门勾28先从第二臂54下方经过后，进入第一臂52与第二臂54之间的空间，然后下门勾28与第一臂52抵接以驱动转杠杆逆时针转动，驱动杠杆20转动过程中，第二臂54卡住下门勾28，使驱动杠杆20带动下门勾28继续关门，第一臂52朝凸柱56方向转动，通过设置缺口58，使得第一臂52经过时，第一臂52与凸柱56不产生干涉，使下门勾28能够抵接凸柱56并驱动转动杠杆40顺时针转动，门体12能够顺利关闭，开关能够顺利触发。门体12关闭后，下门勾28的末端与凸柱56位于第一臂52与第二臂54之间的空间，如图97所示。
请结合图72和图77，在一个实施方式中，缓冲组件16还包括两个驱动弹性件：第一驱动弹性件60和第二驱动弹性件64，两个驱动弹性件之间形成的夹角为锐角，驱动弹性件和驱动杠杆20位于支架14的相背两侧，支架14开设有过孔66，如图86至图87，驱动杠杆20通过过孔66连接两个驱动弹性件，两个驱动弹性件用于带动驱动杠杆20加速转动以使驱动杠杆20带动门体12加速。如此，可以实现下门勾28的先加速，再减速的过程。
请结合图99至图100，在一个实施方式中，缓冲组件16包括单个驱动弹性件65，单个驱动弹性件65和驱动杠杆20位于支架14的相背两侧，支架14开设有过孔66，驱动杠杆20通过过孔66连接单个驱动弹性件65，单个驱动弹性件65用于带动驱动杠杆20加速转动以使驱动杠杆20带动门体12加速。如此，可以实现下门勾28的先加速，再减速的过程。
在图示的实施方式中，驱动弹性件为驱动弹簧。在其他实施方式中，驱动弹性件还可以为其他结构的弹性件，而不限于弹簧。
可以理解的是，在其他实施方式中，缓冲组件16所包括的驱动弹性件的数量不限于两个，单个，还可以是其他数量的弹性件，在此不作具体限定。
位于支架14相背两侧的驱动弹性件和驱动杠杆20，可以将相关结构件分散布置，避免在支架14同一侧面太多结构件而导致空间减少及重量过于集中，不利于结构件的配置。
驱动弹性件可以向驱动杠杆20提供拉力以使驱动杠杆20带动下门勾28加速，也可以向驱动杠杆20提供推力以使驱动杠杆20带动下门勾28加速。在本实施方式中，驱动弹性件可以向驱动杠杆20提供拉力以使驱动杠杆20带动下门勾28加速。
由于驱动杠杆20可带动下门勾28加速，使得在加速阶段，门体12可以依靠驱动杠杆20的作用力去关闭。而在下门勾28加速过程中，当驱动杠杆20转动，之后阻尼器18被压缩。随着关门过程的继续，驱动杠杆20持续压缩阻尼器18的杆件24，阻尼器18的压缩量增大，提供的阻尼力也在增大，当阻尼器18提供的阻尼力大于驱动弹性件提供的驱动力时，下门勾28开始减速，在减速阶段，使得门体12关闭时的噪音不至于太大。在本申请实施方式中，阻尼器18的杆件24被压缩时，本体22固定不动。
第一驱动弹性件60位于驱动第二驱动弹性件64的上方。请参图86，第一驱动弹性件60的一端勾住支架14上的定位柱68，另一端勾住驱动杠杆20上的连接部70。第二驱动弹性件64的一端勾住支架14上的另一定位柱68，另一端勾住连接部70。第一驱动弹性件60与第二驱动弹性件64形成的夹角为锐角，锐角可以是度、度、度等角度，在此不作具体限定。
可以理解，在其它实施方式中，驱动弹性件的数量不限于两个，还可以是单个，或多于两个，在此不作具体限定。
在某些实施方式中，请参图85，支架14还设有挡块72，挡块72遮挡转动臂42的至少一部分。如此，如此，可以保护转动杠杆40不会被人为触发，符合安规要求。
具体地，门体12关闭过程中，下门勾28可以经由支架14上的下通孔48伸入支架14，并推动接触臂44转动，进而带动整个转动杠杆40转动。通过设置挡块72，挡块72遮挡转动臂42的至少一部分，可以防止外界细杆等物品从下通孔48伸入支架14内推动转动臂42转动而人为地触发开关，使得家用电器100误认为门体12已关好，进而启动所导致的安全问题。
另外，请参图82，保护盖36的内侧还设有另一挡块72，支架14上的挡块72形状与保护盖36上的挡块72形状相匹配，以对转动臂42进行全遮挡，进一步保证了转动臂42不会被误触发。
可以理解，在其他实施方式中，支架14上的挡块72可以对转动臂42进行全遮挡。
在某些实施方式中，挡块72的顶面包括斜面74，在门体12关闭的过程中，斜面74用于导引门勾与接触臂44抵接。如此，可以保证门勾在门体12关闭过程中会进入到正常位置，与转动杠杆40接触。
具体地，在门体12关闭过程中，下门勾28靠近转动杠杆40移动，当下门勾28到达斜面74时，斜面74将下门勾28末端导向接触臂44，使下门勾28能够与接触臂44的凸柱56接触，在下门勾28继续移动时，下门勾28驱动转动杠杆40，使得转动杠杆40可以触发开关。
在某些实施方式中，门勾包括下门勾28，支架14上设有第一开关76，开关包括第二开关78和第三开关80。
缓冲组件16被配置为，在门体12关闭过程中，驱动杠杆20在下门勾28的驱动下，先触发第一开关76，转动杠杆40在下门勾28的驱动下，再触发第二开关78，之后触发第三开关80。如此，驱动杠杆20触发第一开关76后，转动杠杆40依次触发第二开关78和第三开关80，使得第一开关76、第二开关78和第三开关80按顺序触发，避免了开关触发顺序混乱的问题。
具体地，家用电器100可包括微波炉，微波炉包括第一开关76、第二开关78和第三开关80。第一开关76可以是监控开关，监控开关用于监控整个微波炉的回路。第二开关78可以是次级开关，次级开关用于控制灯和散热风扇或其它组件的开启。第三开关80可以是初级开关，初级开关用于控制微波炉的微波功能。在门体12关闭过程中，第一开关76、第二开关78和第三开关80依次被触发，以生成相应的电信号，使微波炉的控制板可以控制微波炉运行。
在用户使用微波炉的过程中，三个开关的触发顺序尤为重要。在关门过程中，触发顺序应为：首先触发监控开关，其次触发次级开关，最后触发初级开关。如此，可以保证用户的使用安全及符合安规要求。
可以理解，在其他实施方式中，开关的数量不限于三个，还可以是其他数量的开关，开关的数量和触发顺序按实际进行设定，在此不作具体限定。
在某些实施方式中，门勾末端具有第一导向面82；
请参图89至图94，驱动杠杆20包括间隔的第一臂52和第二臂54，第二臂54侧面具有第二导向面84，在门体12关闭的过程中，第一导向面82与第二导向面84配合连接，使门勾末端绕过第二臂54后第二臂54卡住门勾。如此，在门体12关闭的过程中，第一导向面82与第二导向面84配合连接，使门勾末端绕过第二臂54后第二臂54卡住门勾，实现了一种强制关门结构设计，当驱动杠杆20被非正常触发以后，可以不用进行拆机维修，用户可以自己强制关门后恢复正常。
具体地，请结合图22至图27，下门勾28末端设有勾状部86，勾状部86可以便于卡合。下门勾28包括第一导向面82，第一导向面82可以设置在勾状部86，如此可以便于用户强制关门，使得下门勾28与驱动杠杆20恢复正常配合的位置。
在正常关门的情况下，下门勾28在一定的初速度条件下，下门勾28接触驱动杠杆20的第一臂52，下门勾28可以使得驱动杠杆20转动，驱动杠杆20转动后触发第一开关76，之后驱动杠杆20的第二臂54卡住下门勾28，带动下门勾28继续关门，下门勾28抵接接触臂44使转动杠杆40转动。
然而，在现实生活中很容易因为用户或儿童等使用非正常手段迫使驱动杠杆20被触发(如图98所示)，例如：使用竹签、手指等细长物品伸入支架14拨动驱动杠杆20，迫使驱动杠杆20被触发，导致驱动杠杆20旋转，下门勾28与驱动杠杆20不能配合，导致门体12无法关上，进而导致家用电器100丧失使用功能，甚至需要拆机维修。本申请实施方式的家用电器100，下门勾28末端具有第一导向面82，驱动杠杆20包括第二导向面84，第一导向面82与第二导向面84配合连接，可以使门勾末端绕过第二臂54后第二臂54卡住下门勾28，用户使用较大的力即可恢复下门勾28与驱动杠杆20正常的配合关系，不必拆机维修。
在一个实施方式中，下门勾28末端可以通过塑料的弹性变形，强制穿过驱动杠杆20的第二臂54与支架14之间的间隙。第一导向面82与第二导向面84可以是导向斜面。
以下说明下本申请实施方式的开关门的原理过程。
在双驱动弹性件的实施方式中，初始和终止状态的说明：初始时刻(没关门的时刻)，两个驱动弹性件连接支架14和驱动杠杆20，两驱动弹性件的合力位于驱动杠杆20转轴的上方，此时驱动弹性件的作用力(合力)迫使驱动杠杆20具有顺时针转动的趋势，两个驱动弹性件一直保持拉伸状态。同时，驱动杠杆20被支架14上的止位柱88限制住顺时针运动，压簧32一直处于压缩状态。阻尼器18的杆件24和驱动杠杆20不直接接触，之间有间隙。终止时刻(开门后的时刻)，下门勾28拉动驱动杠杆20向外移动，带动第一驱动弹性件60和第二驱动弹性件64运动。在运动过程中，当两驱动弹性件的合力位于驱动杠杆20转轴上方时，驱动弹性件提供给驱动杠杆20的力由逆时针转动的力变为使驱动杠杆20顺时针转动的力。当下门勾28被拉出后，驱动杠杆20沿顺时针转动到初始位置，同时第一和第二驱动弹性件64和阻尼器18恢复到最终状态。阻尼器18随着驱动杠杆20的顺时针转动，杆件24一同伸长直到恢复到原长度。
在单驱动弹性件的实施方式中，初始和终止状态的说明：初始时刻(没关门的时刻)，单个驱动弹性件连接支架14和驱动杠杆20，驱动弹性件的作用力位于驱动杠杆20转轴的上方，此时驱动弹性件的作用力迫使驱动杠杆20具有顺时针转 动的趋势，驱动弹性件一直保持拉伸状态。同时，驱动杠杆20被支架14上的止位柱88限制住顺时针运动，压簧32一直处于压缩状态。阻尼器18的杆件24和驱动杠杆20不直接接触，之间有间隙。终止时刻(开门后的时刻)，下门勾28拉动驱动杠杆20向外移动，带单个驱动弹性件运动。在运动过程中，当单个驱动弹性件的作用力位于驱动杠杆20转轴上方时，驱动弹性件提供给驱动杠杆20的力由逆时针转动的力变为使驱动杠杆20顺时针转动的力。当下门勾28被拉出后，驱动杠杆20沿顺时针转动到初始位置，同时单个驱动弹性件和阻尼器18恢复到最终状态。阻尼器18随着驱动杠杆20的顺时针转动，杆件24一同伸长直到恢复到原长度。
(一)实现缓关门/软关门的平稳关门过程：
如图70和图95至图97所示，在双驱动弹性件的实施方式中，下门勾28在一定的初速度条件下，最先接触驱动杠杆20的第一臂52，并迫使驱动杠杆20绕着转轴逆时针转动一定角度。该一定角度过程中，阻尼器18并未起到阻碍作用(即，下门勾28在与第一臂52碰撞后，无明显回弹现象，以免下门勾28在第一臂52与第二臂54之间的间隔内来回碰撞，造成停滞现象)。同时，两驱动弹性件的合力转动到驱动杠杆20转轴的下方，驱动杠杆20的第二臂54快速与下门勾28接触。当两驱动弹性件的合力位于驱动杠杆20转轴下方时，驱动弹性件合力变为使驱动杠杆20逆时针转动的力，并驱动下门勾28运动；驱动杠杆20开始与阻尼器18接触，阻尼开始起作用。同时上门勾26伸入前板51的上通孔90，开始将斜块30压下。驱动杠杆20先触发监控开关。随后，下门勾28末端碰触转动杠杆40的接触臂44的凸柱56，转动杠杆40开始转动，依次触发次级开关和初级开关(次级开关叠在初级开关上方)。同时，上门勾26末端压过斜块30顶部，斜块30开始上升，抵住上门勾26末端左侧的圆弧。直到停止运动，关门结束。
请结合图70和图101，在单驱动弹性件的实施方式中，下门勾28在一定的初速度条件下，最先接触驱动杠杆20的第一臂52，并迫使驱动杠杆20绕着转轴逆时针转动一定角度。该一定角度过程中，阻尼器18并未起到阻碍作用(即，下门勾28在与第一臂52碰撞后，无明显回弹现象，以免下门勾28在第一臂52与第二臂54之间的间隔内来回碰撞，造成停滞现象)。同时，单个驱动弹性件的作用力转动到驱动杠杆20转轴的下方，驱动杠杆20的第二臂54快速与下门勾28接触。当单个驱动弹性件的作用力位于驱动杠杆20转轴下方时，驱动弹性件作用力变为使驱动杠杆20逆时针转动的力，并驱动下门勾28运动；驱动杠杆20开始与阻尼器18接触，阻尼开始起作用。同时上门勾26伸入上通孔90，开始将斜块30压下。驱动杠杆20先触发监控开关。随后，下门勾28末端碰触转动杠杆40的接触臂44的凸柱56，转动杠杆40开始转动，依次触发次级开关和初级开关(次级开关叠在初级开关上方)。同时，上门勾26末端压过斜块30顶部，斜块30开始上升，抵住上门勾26末端左侧的圆弧。直到停止运动，关门结束。
(二)实现缓关门/软关门的开门过程：
请结合，图95至图97，图101和图70，人力驱动下，下门勾28带动驱动杠杆20顺时针转动，首先下门勾28与转动杠杆40的接触臂44的凸柱56脱离，初级开关和次级开关依次不在接通。然后上门勾26压住斜块30，向外移动，直到完全脱离。然后，驱动杠杆20与监控开关脱离接触。在此过程中，驱动弹性件的作用力由迫使驱动杠杆20逆时针转动的力变为顺时针转动的力。当下门勾28被拉出后，驱动杠杆20主动转动到初始位置。最后，第一和第二驱动弹性件64、斜块30、转动杠杆40和阻尼器18都恢复到初始状态，开门结束。
(三)强制关门过程：
如图98所示，门没关上，但驱动杠杆20被触发。此时，可以强力推动门体12进行关门动作，下门勾28可以回到正常的关门位置。这是因为，下门勾28末端可以通过塑料的弹性变形，强制穿过驱动杠杆20的第二臂54与支架14之间的间隙。两个导向面可以保证强制关门顺利。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一者实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施方式，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (20)

  1. 一种家用电器，其中，包括：
    支架；
    门体，所述门体转动连接所述支架，所述门体具有门勾；
    缓冲组件，安装在所述支架，所述缓冲组件包括一个第一驱动弹性件、一个第二驱动弹性件、阻尼器和驱动杠杆，所述阻尼器活动连接所述驱动杠杆，所述驱动杠杆上设有连接部，所述第一驱动弹性件和所述第二驱动弹性件连接所述连接部，
    在所述门体打开的情况下，所述门勾脱离所述驱动杠杆，所述第一驱动弹性件与第一连线之间的夹角选自范围0度至60度，所述第二驱动弹性件与第二连线之间的夹角选自范围0度至60度，所述第一连线为所述第一驱动弹性件与所述连接部形成的第一连接处与所述驱动杠杆转动中心之间的连线，所述第二连线为所述第二驱动弹性件与所述连接部形成的第二连接处与所述驱动杠杆转动中心之间的连线；
    在所述门体关闭的情况下，所述门勾抵触所述驱动杠杆以挤压所述阻尼器。
  2. 根据权利要求1所述的家用电器，其中，在所述门体打开的情况下，所述第一驱动弹性件与所述第二驱动弹性件之间的夹角选自范围7度至110度。
  3. 根据权利要求1或2所述的家用电器，其中，在所述门体打开的情况下，所述第一驱动弹性件和所述第二驱动弹性件的合力位于所述驱动杠杆转动中心的上方；
    在所述门体关闭的情况下，所述第一驱动弹性件和所述第二驱动弹性件的合力位于所述驱动杠杆转动中心的下方。
  4. 根据权利要求1-3中任一项所述的家用电器，其中，在所述门体打开的情况下，所述第一驱动弹性件的切向分力向所述驱动杠杆提供沿第一方向转动的转矩，所述第二驱动弹性件的切向分力向所述驱动杠杆提供沿第二方向转动的转矩，所述第一方向与所述第二方向相反，所述第一驱动弹性件提供的转矩大于所述第二驱动弹性件提供的转矩。
  5. 根据权利要求1-4中任一项所述的家用电器，其中，在所述门体关闭的情况下，所述第一驱动弹性件的切向分力向所述驱动杠杆提供沿第二方向转动的转矩，所述第二驱动弹性件的切向分力向所述驱动杠杆提供沿所述第二方向转动的转矩，所述第二驱动弹性件提供的转矩大于所述第一驱动弹性件提供的转矩。
  6. 根据权利要求1-5中任一项所述的家用电器，其中，所述缓冲组件还包括转动杠杆，所述支架上设有开关，所述转动杠杆转动连接所述支架，
    在所述门体关闭的情况下，所述门勾抵触所述转动杠杆以使得所述转动杠杆触发所述开关。
  7. 根据权利要求6所述的家用电器，其中，所述转动杠杆包括转动臂和接触臂，所述转动臂转动连接所述支架，所述接触臂连接所述转动臂，所述支架开设有槽位，所述接触臂至少部分地位于所述槽位内，所述接触臂用于触发所述开关。
  8. 根据权利要求7所述的家用电器，其中，所述驱动杠杆包括间隔的第一臂和第二臂，在所述门体关闭过程中，所述门勾从所述第二臂下方经过后与所述第一臂抵接以驱动所述驱动杠杆转动，
    所述接触臂设有凸柱，
    所述第一臂设有缺口，在所述门体关闭过程中，所述第一臂通过所述缺口避让所述凸柱。
  9. 根据权利要求7或8所述的家用电器，其中，所述支架还设有挡块，所述挡块遮挡所述转动臂的至少一部分。
  10. 根据权利要求1-9中任一项所述的家用电器，其中，所述门勾末端具有第一导向面；
    所述驱动杠杆包括间隔的第一臂和第二臂，所述第二臂侧面具有第二导向面，在所述门体关闭的过程中，所述第一导向面与所述第二导向面配合连接，使所述门勾末端绕过所述第二臂后所述第二臂卡住所述门勾。
  11. 一种家用电器，其中，包括：
    门体，所述门体具有门勾；
    支架，所述门体转动连接所述支架；
    缓冲组件，安装在所述支架，所述缓冲组件包括可回复的阻尼器和驱动杠杆，所述驱动杠杆转动地连接所述支架，所述阻尼器包括本体和杆件，所述本体固定在所述支架，所述杆件可移动地连接所述本体，
    在所述门体关闭的情况下，所述门勾抵触所述驱动杠杆以压缩所述杆件，
    在所述门体打开的情况下，所述门勾脱离所述驱动杠杆，所述阻尼器处于自然长度状态，所述杆件与所述驱动杠杆之间有间隙。
  12. 根据权利要求11所述的家用电器，其中，所述支架设有容置槽，所述本体至少部分地固定在所述容置槽。
  13. 根据权利要求11或12所述的家用电器，其中，所述支架上设有限位柱，在所述门体关闭的情况下，所述限位柱抵接所述驱动杠杆并限制所述驱动杠杆的转动。
  14. 根据权利要求11-13中任一项所述的家用电器，其中，所述缓冲组件还包括转动杠杆，所述支架上设有开关，所述转动杠杆转动连接所述支架，
    在所述门体关闭的情况下，所述门勾抵触所述转动杠杆以使得所述转动杠杆触发所述开关。
  15. 根据权利要求14所述的家用电器，其中，所述转动杠杆包括转动臂和接触臂，所述转动臂转动连接所述支架，所述接触臂连接所述转动臂，所述支架开设有槽位，所述接触臂至少部分地位于所述槽位内，所述接触臂用于触发所述开关。
  16. 根据权利要求15所述的家用电器，其中，所述驱动杠杆包括间隔的第一臂和第二臂，在所述门体关闭过程中，所述门勾从所述第二臂下方经过后与所述第一臂抵接以驱动所述驱动杠杆转动，
    所述接触臂设有凸柱，
    所述第一臂设有缺口，在所述门体关闭过程中，所述第一臂通过所述缺口避让所述凸柱。
  17. 根据权利要求15或16所述的家用电器，其中，所述支架还设有挡块，所述挡块遮挡所述转动臂的至少一部分。
  18. 根据权利要求17所述的家用电器，其中，所述挡块的顶面包括斜面，在所述门体关闭的过程中，所述斜面用于导引所述门勾与所述接触臂抵接。
  19. 根据权利要求14-18中任一项所述的家用电器，其中，所述门勾包括下门勾，所述支架上设有第一开关，所述开关包括第二开关和第三开关，
    所述缓冲组件被配置为，在所述门体关闭过程中，所述驱动杠杆在所述下门勾的驱动下，先触发所述第一开关，所述转动杠杆在所述下门勾的驱动下，再触发所述第二开关，之后触发所述第三开关。
  20. 根据权利要求11-19中任一项所述的家用电器，其中，所述门勾末端具有第一导向面；
    所述驱动杠杆包括间隔的第一臂和第二臂，所述第二臂侧面具有第二导向面，在所述门体关闭的过程中，所述第一导向面与所述第二导向面配合连接，使所述门勾末端绕过所述第二臂后所述第二臂卡住所述门勾。
PCT/CN2023/097764 2022-06-01 2023-06-01 家用电器 Ceased WO2023232105A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2023279782B2 (en) * 2022-06-01 2025-11-20 Guangdong Midea Kitchen Appliances Manufacturing Co., Ltd. Interlock device for microwave oven, and microwave oven

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000050712A (ko) * 1999-01-14 2000-08-05 윤종용 전자렌지의 도어 인터록 장치
CN205690458U (zh) * 2016-06-12 2016-11-16 广东美的厨房电器制造有限公司 联锁开关结构及微波炉
CN110958837A (zh) * 2017-07-06 2020-04-03 布瑞威利私人有限公司 用于烤炉的伸缩门
CN113216776A (zh) * 2021-04-30 2021-08-06 广东美的厨房电器制造有限公司 门锁装置及烹饪器具
CN114016832A (zh) * 2021-11-12 2022-02-08 广东美的厨房电器制造有限公司 烹饪器具
CN114961445A (zh) * 2022-06-01 2022-08-30 广东美的厨房电器制造有限公司 微波炉的联锁装置和微波炉
CN217681150U (zh) * 2022-06-01 2022-10-28 广东美的厨房电器制造有限公司 家用电器
CN217681149U (zh) * 2022-06-01 2022-10-28 广东美的厨房电器制造有限公司 家用电器
CN217681152U (zh) * 2022-06-01 2022-10-28 广东美的厨房电器制造有限公司 家用电器
CN115324430A (zh) * 2022-06-01 2022-11-11 广东美的厨房电器制造有限公司 微波炉的联锁装置和微波炉
CN218092548U (zh) * 2022-06-01 2022-12-20 广东美的厨房电器制造有限公司 微波炉的联锁装置和微波炉
CN218522472U (zh) * 2022-06-01 2023-02-24 广东美的厨房电器制造有限公司 微波炉的联锁装置和微波炉

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1151247A (en) * 1978-12-11 1983-08-02 Yasuhiro Sakoda Door latching assembly
CN1128952C (zh) 1995-07-26 2003-11-26 松下电器产业株式会社 高频加热装置及其使用的门装置
US5672857A (en) * 1996-04-26 1997-09-30 Honeywell Inc. Switch actuating mechanism for two sequentially activated switches
EP1469257B1 (en) * 2003-03-19 2015-01-28 LG Electronics, Inc. Door assembly for microwave oven
DE202015001071U1 (de) 2015-02-13 2015-04-01 Brano A.S. Schloss ohne Sperrklinke mit mindestens einer Zugfeder
CN213272727U (zh) 2020-09-30 2021-05-25 广东美的厨房电器制造有限公司 门体的伸缩装置和烹饪器具
CN113700408B (zh) 2021-08-30 2023-02-17 广东美的厨房电器制造有限公司 开关门组件和家用电器

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000050712A (ko) * 1999-01-14 2000-08-05 윤종용 전자렌지의 도어 인터록 장치
CN205690458U (zh) * 2016-06-12 2016-11-16 广东美的厨房电器制造有限公司 联锁开关结构及微波炉
CN110958837A (zh) * 2017-07-06 2020-04-03 布瑞威利私人有限公司 用于烤炉的伸缩门
CN113216776A (zh) * 2021-04-30 2021-08-06 广东美的厨房电器制造有限公司 门锁装置及烹饪器具
CN114016832A (zh) * 2021-11-12 2022-02-08 广东美的厨房电器制造有限公司 烹饪器具
CN114961445A (zh) * 2022-06-01 2022-08-30 广东美的厨房电器制造有限公司 微波炉的联锁装置和微波炉
CN217681150U (zh) * 2022-06-01 2022-10-28 广东美的厨房电器制造有限公司 家用电器
CN217681149U (zh) * 2022-06-01 2022-10-28 广东美的厨房电器制造有限公司 家用电器
CN217681152U (zh) * 2022-06-01 2022-10-28 广东美的厨房电器制造有限公司 家用电器
CN115324430A (zh) * 2022-06-01 2022-11-11 广东美的厨房电器制造有限公司 微波炉的联锁装置和微波炉
CN218092548U (zh) * 2022-06-01 2022-12-20 广东美的厨房电器制造有限公司 微波炉的联锁装置和微波炉
CN218522472U (zh) * 2022-06-01 2023-02-24 广东美的厨房电器制造有限公司 微波炉的联锁装置和微波炉

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4365395A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2023279782B2 (en) * 2022-06-01 2025-11-20 Guangdong Midea Kitchen Appliances Manufacturing Co., Ltd. Interlock device for microwave oven, and microwave oven

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