WO2026001079A1 - Dispositif de verrou de porte et appareil de cuisson - Google Patents

Dispositif de verrou de porte et appareil de cuisson

Info

Publication number
WO2026001079A1
WO2026001079A1 PCT/CN2025/082131 CN2025082131W WO2026001079A1 WO 2026001079 A1 WO2026001079 A1 WO 2026001079A1 CN 2025082131 W CN2025082131 W CN 2025082131W WO 2026001079 A1 WO2026001079 A1 WO 2026001079A1
Authority
WO
WIPO (PCT)
Prior art keywords
bracket
movable member
door
lock device
movable
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.)
Pending
Application number
PCT/CN2025/082131
Other languages
English (en)
Chinese (zh)
Inventor
王�义
刘刚
崔永杰
沈方添
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.)
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Original Assignee
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 CN202410871138.2A external-priority patent/CN118564150A/zh
Priority claimed from CN202422137617.XU external-priority patent/CN223510738U/zh
Application filed by Guangdong Midea Kitchen Appliances Manufacturing Co Ltd filed Critical Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Publication of WO2026001079A1 publication Critical patent/WO2026001079A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • 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
    • E05C19/10—Hook fastenings; Fastenings in which a link engages a fixed hook-like member
    • E05C19/12—Hook fastenings; Fastenings in which a link engages a fixed hook-like member pivotally mounted around an axis
    • 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
    • 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/02—Stoves or ranges heated by electric energy using microwaves

Definitions

  • This application relates to the field of home appliance technology, specifically to a door lock device and a cooking appliance.
  • cooking appliances have a housing and a door, with the door rotatably mounted on the housing.
  • the door can be opened or closed under external force.
  • the door is generally equipped with a latch, which is movably connected to the door via a spring.
  • the housing of the cooking appliance is equipped with a door lock mechanism, which has a bracket with an inclined locking part. The latch cooperates with the locking part to ensure that the door can be fully closed.
  • the latch overcomes the spring's tension and the friction between itself and the locking part, climbing from the lower slope of the locking part to the higher slope.
  • the spring's restoring force causes the latch to engage with the higher slope and lock the door to the housing.
  • the friction between the latch and the locking part, as well as the spring's resistance to the latch disappears.
  • the door lock mechanism also suffers from a non-compact structure and occupies a large amount of space.
  • the first aspect of this application provides a door lock device that can improve the noise after the door is closed.
  • this application provides a door lock device for locking the door of a cooking appliance to its housing.
  • the door lock device includes:
  • a retaining element for installation on a door body including a first retaining part
  • the locking assembly includes a bracket, a first locking mechanism, and a damping component.
  • the bracket is used to connect to the housing.
  • the first locking mechanism is movably disposed on the bracket.
  • the bracket has a snap-in end.
  • the first locking mechanism has a first slot.
  • the first holding part has a first locked state that enters from the snap-in end and engages with the first slot, and a first unlocked state that separates from the first slot and exits from the snap-in end.
  • the bracket has a first receiving space.
  • the damping component has a body part that is located within the first receiving space. The body part is configured to move within the first receiving space and has a first limit position and a second limit position.
  • the main body moves to the first limit position within the first receiving space and provides a damping force to the first locking mechanism to reduce the resistance of the first holding part from getting stuck in the first slot.
  • the main body is in the second extreme position.
  • the main body moves between the first and second extreme positions, providing zero damping force.
  • the damping force increases, that is, when the first locking part is about to be locked, it provides damping force.
  • the door body and the shell are close to each other and are about to collide, which can play a buffering role to slow down the locking speed of the first locking part, thereby reducing the sound of the door body colliding with the shell and improving the user experience.
  • the first locking mechanism has a first state of slowing down the entry of the first holding part into the first card slot, and a second state of maintaining the first holding part engaged with the first card slot;
  • the damping force provided by the main body to the first locking mechanism is zero.
  • the damping force increases from zero.
  • the first locking mechanism includes:
  • the first movable component is rotatably connected to the bracket and drivenly connected to the damping component.
  • the first movable component has a first slot.
  • the first elastic member has a first end rotatably connected to the bracket and has a first rotation center.
  • the second end of the first elastic member is rotatably connected to the first movable member and has a second rotation center.
  • the center of the first movable member rotatably connected to the bracket is a third rotation center.
  • the straight line passing through the third rotation center and the second rotation center is a first straight line.
  • the first movable member has a partially convex arc surface.
  • the axis of rotation of the first movable member relative to the bracket coincides with the axis of the arc surface.
  • the arc surface is provided with a plurality of meshing teeth continuously arranged along the circumference of the arc surface.
  • the damping component includes a damper and a rack.
  • the rack is slidably connected to the bracket along a first direction.
  • the rack meshes with the meshing teeth.
  • the rack is configured to be driven and move linearly relative to the bracket.
  • the movable end of the damper is connected to the rack.
  • the axis of rotation of the first movable member relative to the bracket is perpendicular to the first direction.
  • the bracket is provided with a first stop and a second stop, the first stop and the second stop are spaced apart along a first direction, the dimension of the main body along the first direction is H1, the dimension between the first stop and the second stop is H2, and H1 is less than H2.
  • the damper is a unidirectional damper.
  • the first locking mechanism further includes a second elastic member.
  • the second elastic member is disposed on the bracket. When the first holding part is in the first unlocked state, the second elastic member abuts against the first movable member, and the second elastic member is in a compressed state.
  • the locking component further includes a first micro switch, which is disposed on the bracket.
  • the first moving member triggers the first micro switch.
  • the first movable member includes a rotating hook arm
  • the locking assembly further includes a blocking and limiting member.
  • the blocking and limiting member is located on the side of the first movable member having a first slot.
  • the blocking and limiting member is movably mounted on the bracket.
  • the blocking and limiting member has a limiting slot. When the first holding part exits from the locking end, the limiting slot engages with the rotating hook arm to limit the rotation of the first movable member relative to the bracket.
  • the blocking and limiting member is configured to be driven by the first holding part to separate the limiting slot from the rotating hook arm.
  • the blocking limit member is rotatably connected to the bracket, and the locking assembly further includes a third elastic member.
  • the third elastic member is located on the side of the blocking limit member away from the first movable member. The third elastic member abuts against the bracket and the blocking limit member respectively. When the rotating hook arm is in the latching state, the elastic force of the third elastic member can cause the limiting slot to remain in the latching state with the rotating hook arm.
  • the retaining member further includes a second retaining portion, which is spaced apart from the first retaining portion along a first direction.
  • the locking component further includes a second locking mechanism, which is spaced apart from the first locking mechanism along a first direction.
  • the second locking mechanism is movably connected to the bracket.
  • the second locking mechanism has a second slot.
  • the second retaining portion has a second locked state where it enters from the insertion end and engages with the second slot, and a second unlocked state where it exits sequentially from the second slot and the insertion end.
  • the first direction is perpendicular to the insertion direction.
  • the second locking mechanism includes:
  • the second movable component is rotatably connected to the bracket, and the second movable component has a second slot.
  • the fourth elastic member has a first connecting end connected to the bracket and a second connecting end connected to the second movable member.
  • the fourth elastic member tends to slow down the second holding part from entering the second slot.
  • the fourth elastic member tends to keep the second holding part engaged with the second slot.
  • the first connecting end and the bracket have a first rotation center
  • the second connecting end and the second movable member have a second rotation center
  • the second movable member has a third rotation center relative to the bracket
  • the straight line passing through the third rotation center and the first rotation center is the second straight line.
  • the locking component further includes a second micro switch, which is disposed on the bracket and located between the first locking mechanism and the second locking mechanism. When the second holding part is in the locked state, the second moving member triggers the second micro switch.
  • the second aspect of this application provides a door lock device that can at least solve the technical problem of the large space occupied by the door lock mechanism.
  • this application provides a door lock device, which includes a bracket, a latching member, a first movable member, and a damping member.
  • the bracket is used to be installed at the opening of the housing
  • the latching member is used to be fixed to the door body
  • the door body is installed at the opening of the housing
  • the door body is rotatably connected to the housing to open or close the opening of the housing.
  • the first movable member is installed on the bracket and can rotate relative to the bracket.
  • the first movable member is used to cooperate with the latching member, and the latching member drives the door body to close during the closing process.
  • the damping member includes a first buffer part and a second buffer part rotatably connected to the first buffer part.
  • the first buffer part is installed on the bracket, and the second buffer part extends at least partially into the first movable member.
  • the first buffer part and the second buffer part rotate relative to each other, so as to reduce the rotation speed of the first movable member through the damping between the first buffer part and the second buffer part, thereby reducing the closing speed of the door body.
  • the first movable member is provided with a mounting hole, one end of the second buffer part is inserted into the mounting hole, and the second buffer part cooperates with the hole wall of the mounting hole to apply a buffering force to the first movable member.
  • the first movable member is used to rotate between a first position and a second position, and during the rotation of the first movable member from the first position to the second position, the door is closed by a locking member;
  • the mounting hole has a stop portion formed on its wall.
  • one end of the second buffer portion is spaced apart from the stop portion. After the first movable member rotates from the first position to the second position by a preset angle, one end of the first buffer portion cooperates with the stop portion to slow down the rotation speed of the first movable member.
  • the bracket is provided with an assembly hole, and the first buffer portion is at least partially disposed in the assembly hole.
  • the door lock device includes a first elastic member, a first elastic member connecting bracket and a first movable member.
  • the first elastic member can apply an elastic force to the first movable member to make the first movable member rotate so as to drive the door to close through the locking member.
  • the first elastic element includes a torsion spring, with a first end of the torsion spring connected to a bracket and a second end of the torsion spring connected to a first movable element;
  • the torsion spring applies a thrust to the first movable member to rotate toward the first side, the first side being the side of the first straight line passing through the rotation center of the first movable member and the first end of the torsion spring;
  • the torsion spring applies a thrust to the first movable member that rotates toward the second side.
  • the second side is the other side of the first straight line passing through the rotation center of the first movable member and the first end of the torsion spring.
  • the first side and the second side are two sides opposite to the first straight line.
  • the first movable member is used to rotate between a first position and a second position, and during the rotation of the first movable member from the first position to the second position, the door is closed by a locking member;
  • the door lock device also includes a second elastic member disposed on the bracket, which, when the first movable member is in the first position, applies a thrust to the first movable member to rotate toward the second position.
  • the retaining member includes an installation part and a first retaining part disposed on the installation part.
  • the first retaining part has a hook
  • the first movable member has a first slot. When the hook engages with the first slot, the first movable member can drive the door to close via the first retaining part.
  • the locking member further includes a second locking part disposed on the mounting portion, the second locking part being spaced apart from the first locking part
  • the door lock device further includes a second movable member rotatably disposed on the bracket, wherein the second locking part and the second movable member are locked together when the door is closed.
  • the door lock device further includes a fourth elastic member, which connects the second movable member and the bracket.
  • the fourth elastic member is used to apply a resetting elastic force to the second movable member when the second holding part is separated from the second movable member.
  • this application provides a cooking appliance, comprising:
  • the shell has an interior cavity, and the front end of the shell has a doorway that communicates with the cavity.
  • the door body is configured to fit with the doorway cover, with one end of the door body pivotally connected to the housing.
  • the door lock device has a latching member installed on the door body, and a first latching part extends from the side of the door body toward the doorway.
  • the locking component is installed inside the housing.
  • the cooking appliance includes a door, a housing, and a door lock device according to the second aspect embodiment.
  • a bracket is installed at an opening in the housing, and a retaining member is provided in the door.
  • the damping component can slow down the rotation speed of the first moving member, thereby slowing down the closing speed of the door and reducing the noise generated by the collision between the door and the housing, thus improving the user experience.
  • the first buffer portion is mounted on the bracket, and the second buffer portion extends at least partially into the first moving member. This fully utilizes the space of the door lock device, and the gap between the first moving member and the bracket is smaller, making the structure of the door lock device more compact.
  • Figure 1 is an exploded view of a door lock device according to the first embodiment of this application.
  • Figure 2A is a side view of a door lock device in the unlocked state according to the first embodiment of this application;
  • Figure 2B is a first-view side view of a door lock device according to the first embodiment of this application, showing the process of the retaining element being engaged with the locking component.
  • Figure 2C is a side view of the door lock device in Figure 2B from a second perspective
  • Figure 2D is a side view of a door lock device in a locked state according to the first embodiment of this application from a first perspective;
  • Figure 2E is a side view of the door lock device in Figure 2D from a second perspective
  • Figure 2F is a side view of a door lock device in the unlocked state according to a second embodiment of this application from a first perspective;
  • Figure 2G is a side view of a door lock device in the unlocked state according to a third embodiment of this application from a first perspective;
  • Figure 2H is a side view of a door lock device in the unlocked state according to the fourth embodiment of this application from a first perspective;
  • Figure 2I is an isometric view of a door lock device in a locked state according to the fifth embodiment of this application;
  • Figure 2J is an exploded view of the door lock device in Figure 2I;
  • Figure 2K is an isometric view of the first movable member of an embodiment of the door lock device in this application;
  • Figure 2L is a side view of a door lock device in the unlocked state according to the fifth embodiment of this application from a first perspective;
  • Figures 2M-2O are side views from a first perspective of a door lock device in different states during the locking process according to the fifth embodiment of this application;
  • Figure 3A is an axonometric view of a cooking appliance according to an embodiment of this application from a first perspective
  • Figure 3B is a partial axonometric view from a second perspective of a cooking appliance according to an embodiment of this application;
  • Figure 3C is a partial structural schematic diagram of a cooking appliance according to an embodiment of this application.
  • the reference numerals in the detailed embodiments are as follows: 1000, cooking appliance; 100, door lock device; 200, housing; 300, door body; 10, holding member; 11, first holding part; 111, first hook head; 112, first hook handle; 113, first clearance groove; 12, second holding part; 121, second hook head; 122, second hook handle; 123, card interface; 124, second clearance groove; 125, card hole; 13, mounting part; 2 0.
  • Second micro switch 30. Damping component; 31. Rack; 32. Damper; 321. Body part; 322. Movable end; 33. First buffer part; 34. Second buffer part; X. Engaging direction; Y. First direction; Z. First straight line; P. Second straight line.
  • the term "and/or” is merely a description of the relationship between related objects, indicating that three relationships can exist.
  • a and/or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.
  • the character "/" in this document generally indicates that the preceding and following related objects have an "or" relationship.
  • multiple refers to two or more (including two), similarly, “multiple sets” refers to two or more (including two sets), and “multiple pieces” refers to two or more (including two pieces).
  • a door lock device 100 is provided. Referring to Figures 1-3B, it is used for locking the door 300 and housing 200 of a cooking appliance 1000.
  • the door lock device 100 includes a retaining member 10 and a locking assembly 20.
  • the retaining member 10 is used for mounting on the door 300 and includes a first retaining portion 11.
  • the locking assembly 20 includes a bracket 21, a first locking mechanism 22, and a damping component 30.
  • the bracket 21 is used to connect to the housing 200.
  • the first locking mechanism 22 is movably disposed on the bracket 21.
  • the bracket 21 has an insertion end 211 and a first slot 2211.
  • the first holding part 11 has a first locked state where it enters from the insertion end 211 and engages with the first slot 2211, and a first unlocked state where it separates from the first slot 2211 and exits from the insertion end 211.
  • the bracket 21 has a first receiving space.
  • the damping component 30 has a body part 321 located within the first receiving space.
  • the body part 321 is configured to move within the first receiving space and has a first limit position and a second limit position.
  • the body part 321 moves to the first limit position within the first receiving space and provides a damping force to the first locking mechanism 22 to reduce the engagement of the first holding part 11 into the first slot 2211.
  • the main body part 321 is in the second extreme position.
  • the damping component 30 and the first locking mechanism 22 can form a crank-slider mechanism or a gear-rack transmission mechanism 31.
  • the door body 300 and the housing 200 can be engaged by a door lock device 100. Specifically, one end of the door body 300 is rotatably connected to the housing 200, and the other end of the door body 300 is locked to the housing 200 by the door lock device 100, thereby enabling the door body 300 to open and close.
  • a door lock device 100 can be provided, and the door body 300 can be detachably locked to the housing 200 by the door lock devices 100.
  • the movement of the first locking mechanism 22 relative to the support 21 can be either linear or rotational.
  • the first holding part 11 can be a first hook structure, a T-shaped rod or an L-shaped rod structure, or a rod-shaped structure with a locking protrusion at the end.
  • the first limit position and the second limit position are two different positions where the main body 321 abuts against the bracket 21.
  • the first hook body structure includes a first hook head 111 and a first hook handle 112.
  • the first hook head 111 is connected to the first hook handle 112.
  • the first hook head 111 and the first hook handle 112 together define a first clearance groove 113.
  • part of the first hook head 111 is located in the first locking groove 2211, and part of the first moving part 221 is located in the first clearance groove 113.
  • the bracket 21 can be installed on the housing 200 by means of screws, snap-fit, adhesive or welding.
  • the first locking mechanism 22 includes a slider 224 and an elastic telescopic member 225.
  • the slider 224 is slidably connected to the bracket 21 along the first direction Y.
  • the damping member 30 is located above the slider 224, and the slider 224 is drivenly connected to the damping member 30.
  • the damping member 30 can be disposed on the side of the bracket 21 opposite to the slider 224.
  • the first direction Y can be the height direction of the aforementioned housing 200.
  • the bottom of the slider 224 is provided with a first slot 2211.
  • One end of the elastic telescopic member 225 is connected to the slider 224.
  • the moving member 224 abuts against the other end of the elastic telescopic member 225, which abuts against the bracket 21.
  • the bottom of the sliding member 224 has an inclined surface 2241 located on the side of the first slot 2211 facing the insertion end 211.
  • the minimum dimension between the inclined surface 2241 and the insertion end 211 increases at any position along the insertion direction X of the first holding part 11.
  • the inclined surface 2241 is pressed by the first holding member 10, causing the sliding member 224 to move upwards, compressing the elastic telescopic member 225, and ultimately achieving the engagement of the first holding member 10.
  • the sliding member 224 drives the damping member 30 to move upwards, bringing the damping member 30 to its first limit position and compressing it.
  • the damping member 30 generates a damping force to resist the upward movement of the sliding member 224, thereby slowing down the engagement speed of the first holding part 11.
  • the first locking mechanism 22 can also be rotatably mounted on the bracket 21.
  • the elastic telescopic element 225 can be a compression spring or an elastic telescopic rod.
  • the main body 321 moves between the first limit position and the second limit position, providing zero damping force.
  • the damping force increases, that is, when the first latching part 11 is about to be locked, it provides damping force.
  • the door body 300 and the housing 200 are close to each other and are about to collide, which can play a buffering role to slow down the latching speed of the first latching part 11, thereby reducing the sound of the door body 300 colliding with the housing 200 and improving the user experience.
  • the first locking mechanism 22 has a first state that slows down the entry of the first latching part 11 into the first slot 2211, and a second state that keeps the first latching part 11 engaged with the first slot 2211.
  • the damping force provided by the body part 321 to the first locking mechanism 22 is zero.
  • the damping force increases from zero.
  • Figures 2B and 2C are side views of the door lock device 100 in different orientations when the body part 321 is in the same position in the first receiving space.
  • Figures 2B and 2C exemplarily show the structure diagram of the first locking mechanism 22 in the first state with zero damping force
  • Figures 2D and 2E show the structure diagram of the first locking mechanism 22 in the second state with a damping force greater than zero.
  • the main body part 321 is in a movable state and does not provide damping force to the first locking mechanism 22. This can reduce the closing resistance during the locking process.
  • the first locking mechanism 22 As the first latching part 11 moves, the first locking mechanism 22 is in a second state. Under the action of the first locking mechanism 22, the latching speed of the first latching part 11 will be accelerated.
  • the main body part 321 is limited after moving to the first limit position, and the damping component 30 provides resistance to the first locking mechanism 22 to slow down the latching speed of the first latching part 11. On the one hand, it can reduce the impact noise between the door body 300 and the door, and on the other hand, it can make the closing smoother.
  • the first locking mechanism 22 includes a first movable member 221 and a first elastic member 222.
  • the first movable member 221 is rotatably connected to the bracket 21 and drivenly connected to the damping component 30.
  • the first movable member 221 has a first slot 2211.
  • the first end 2221 of the first elastic member 222 is rotatably connected to the bracket 21 and has a first rotation center.
  • the second end 2222 of the first elastic member 222 is rotatably connected to the first movable member 221 and has a second rotation center.
  • the center of rotation of the first movable member 221 relative to the bracket 21 is a third rotation center.
  • a straight line passing through the third rotation center and the second rotation center is a first straight line Z.
  • the trajectory curve of the second rotation center intersects with the first straight line Z.
  • the axis of rotation of the first movable member 221 relative to the bracket 21 is perpendicular to the first cross-section.
  • the damping component 30 is rotatably connected to the first movable component 221, and can also be engaged with the first movable component 221 via the rack 31.
  • the damping component 30 includes a damper 32, the end of which is rotatably connected to the first movable member 221, and the end of the damper 32 opposite to the first movable member 221 is connected to the bracket 21.
  • the first elastic element 222 can be a torsion spring or an elastic telescopic rod.
  • the elastic telescopic rod can be an air spring; the elastic telescopic rod can also include a first rod, a second rod, and a first compression spring.
  • the first rod is a hollow rod, and part of the second rod is disposed in the cavity of the first rod and extends from one end of the first rod. The other end of the first rod is blocked, and a first compression spring is provided between the other end of the first rod and the second rod.
  • Figures 2A-2E exemplarily show the structure where the first elastic element 222 is a torsion spring.
  • the first elastic element 222 can be an elastic telescopic rod.
  • One end of the elastic telescopic rod is rotatably connected to the bracket 21, and the other end is rotatably connected to the first movable element 221.
  • the center of the rotatable connection between the elastic telescopic rod and the bracket 21 is the first rotation center.
  • the center of the rotatable connection between the elastic telescopic rod and the first movable element 221 is the second rotation center.
  • the first movable element 221 rotates, while the first elastic telescopic rod swings relative to the bracket 21.
  • the first elastic member 222 can reduce the engagement speed of the first latching part 11. On the one hand, it can buffer the noise of the door 300 hitting the housing 200 when closing, and on the other hand, it can provide torque to the first movable member 221 to maintain the engagement of the first latching part 11.
  • the first movable member 221 has a partially convex arc surface.
  • the axis of rotation of the first movable member 221 relative to the bracket 21 coincides with the axis of the arc surface.
  • the arc surface is provided with a plurality of meshing teeth 2212 continuously arranged along the circumference of the arc surface.
  • the damping component 30 includes a damper 32 and a rack 31.
  • the damper 32 has a body portion 321 and a movable end 322.
  • the movable end 322 can move relative to the body portion 321 along the first direction Y.
  • the rack 31 is slidably connected to the bracket 21 along the first direction Y.
  • the rack 31 meshes with the meshing teeth 2212.
  • the rack 31 is configured to be driven and move linearly relative to the bracket 21.
  • the movable end 322 of the damper 32 is connected to the rack 31.
  • the axis of rotation of the first movable member 221 relative to the bracket 21 is perpendicular to the first direction Y.
  • the rack 31 has an embedded structure, and the movable end 322 of the damper 32 is located within the embedded structure to achieve the connection between the damper 32 and the rack 31.
  • the end of the damper 32 can be connected to the rack 31 by means of screws or welding.
  • the bracket 21 is provided with a cover plate 27, which is detachably connected to the bracket 21. Specifically, it can be one or both of snap-fit or screw connection, and together with the bracket 21, it defines a guide groove.
  • the length direction of the guide groove can be the same as the first direction Y.
  • the rack 31 and the damper 32 are both disposed in the guide groove, and the damper 32 abuts against the end of the rack 31.
  • the first holding part 11 will drive the first movable member 221 to rotate.
  • the rotation of the first movable member 221 will drive the rack 31 to move along its own length direction, thereby compressing the damper 32.
  • the damper 32 provides a reverse damping force to slow down the speed at which the first holding part 11 enters the first slot 2211, thereby reducing the noise generated by the collision between the door 300 and the housing 200 when the door is closed, and at the same time reducing the noise of the engagement between the holding member 10 and the locking assembly 20.
  • first stop 214 and the second stop 215 are located on the side of the bracket 21 opposite to the first locking mechanism 22.
  • the first stop 214 is located below the second stop 215.
  • the position where the body part 321 abuts against the first stop 214 is the first extreme position, and the position where the body part 321 abuts against the second stop 215 is the second extreme position.
  • the first stop 214 may also be located above the second stop 215, with the position where the body part 321 abuts against the second stop 215 being the first extreme position and the position where the body part 321 abuts against the first stop 214 being the second extreme position.
  • the main body 321 can move within the first accommodating space.
  • the first locking mechanism 22 further includes a second elastic member 223.
  • the second elastic member 223 is disposed on the bracket 21. When the first holding part 11 is in the first unlocked state, the second elastic member 223 abuts against the first movable part 221, and the second elastic member 223 is in a compressed state.
  • the second elastic element 223 includes, but is not limited to, one of a compression spring, an elastic rubber element, an elastic telescopic rod, or an elastic polyurethane element.
  • the elastic telescopic rod can be, but is not limited to, the examples mentioned above.
  • the first movable member 221 can separate from the second elastic member 223 when it rotates at a certain angle, or it can remain in contact with the second elastic member 223.
  • the first movable member 221 In the first unlocked state, the first movable member 221 remains balanced under the forces of the first elastic member 222 and the second elastic member 223.
  • the second elastic member 223 has a buffering effect, which can reduce the impact of the first movable member 221 on the bracket 21, thereby reducing damage to the bracket 21 and extending the service life of the bracket 21.
  • the elastic force of the second elastic member 223 can offset part of the elastic force of the first elastic member 222, thereby reducing the thrust acting on the holding member 10 and making locking easier.
  • the locking component 20 further includes a first micro switch 281.
  • the first micro switch 281 is disposed on the bracket 21. When the first holding part 11 is in the locked state, the first moving part 221 triggers the first micro switch 281.
  • the first micro switch 281 can be connected to the bracket 21 by screws, or it can be fixed to the bracket 21 by snap-fit or adhesive.
  • a cooking appliance 1000 such as a common microwave oven
  • the first latch reaches a locked state.
  • the first latch precisely triggers the first microswitch 281, thereby generating a door-closing signal.
  • the first microswitch 281 will not be triggered, and the microwave oven will not start. Only when the first latch successfully locks and triggers the first microswitch 281, generating a door-closing signal, will the microwave oven's heating function be activated. This effectively prevents the microwave oven from being started when the door is not properly closed, avoiding potential harm to the human body caused by microwave leakage.
  • the first movable member 221 includes a rotating hook arm 2213
  • the locking assembly 20 further includes a blocking and limiting member 25.
  • the blocking and limiting member 25 is located on the side of the first movable member 221 with a first slot 2211.
  • the blocking and limiting member 25 is movably mounted on the bracket 21.
  • the blocking and limiting member 25 has a limiting slot 251. When the first holding part 11 exits from the locking end 211, the limiting slot 251 engages with the rotating hook arm 2213 to limit the rotation of the first movable member 221 relative to the bracket 21.
  • the blocking and limiting member 25 is configured to be driven by the first holding part 11 to separate the limiting slot 251 from the rotating hook arm 2213.
  • the first movable member 221 is also provided with a first guide surface 22112, which is connected to the groove wall of the first slot 2211.
  • first guide surface 22112 which is connected to the groove wall of the first slot 2211.
  • the first holding part 11 first abuts against the first guide surface 22112.
  • the first holding part 11 is driven by an external force to make the first movable member 221 rotate.
  • the position of the first slot 2211 relative to the first holding part 11 changes, and slides into the first slot 2211 under the guidance of the first guide surface 22112, and finally moves into the first slot 2211.
  • it maintains the locked state under the force of the first elastic member 222.
  • the first slot 2211 has a clearance portion 22111.
  • the orientation of the opening of the first slot 2211 changes, and the clearance portion 22111 can avoid the first slot 2211, thereby reducing the probability of interference during engagement.
  • a portion of the clearance portion 22111 can connect with the aforementioned first guide surface 22112.
  • the width of the first slot 2211 is slightly larger than the width of the first holding portion 11 (the dimension along the engagement direction XX) to further reduce the probability of jamming due to interference during engagement.
  • the limiting slot 251 can be, but is not limited to, a U-shaped slot, a trapezoidal slot, or a rectangular slot, etc., and can be designed according to actual needs.
  • the blocking and limiting member 25 can be slidably connected to the bracket 21, and the blocking and limiting member 25 can also be rotatably connected to the bracket 21.
  • the blocking and limiting member 25 is slidably connected to the bracket 21 along the first direction Y.
  • the bracket 21 is provided with a guide groove extending along the first direction Y
  • the blocking and limiting member 25 is disposed in the guide groove, and is capable of moving along the first direction Y.
  • a spring or elastic telescopic rod is provided between the guide groove and the blocking and limiting member 25.
  • the end of the bracket 21 that receives the holding member 10 is the insertion end 211.
  • the blocking and limiting member 25 is provided with a second guide surface 252 on the side facing the insertion end 211.
  • the minimum size of the second guide surface 252 from any position along the first direction Y to the insertion end 211 increases.
  • the second guide surface 252 is squeezed by the first holding part 11, so that the limiting groove 251 moves away from the rotating hook arm 2213, thereby releasing the restriction of the blocking and limiting member 25 on the rotation of the first movable member 221, and finally realizing the engagement of the first holding part 11.
  • the blocking and limiting member 25 is provided with a first magnet and a second magnet on the side opposite to the first movable member 221.
  • the first magnet is connected to the blocking and limiting member 25 and can also be part of the blocking and limiting member 25.
  • the second magnet is fixed to the bracket 21 and can also be part of the bracket 21.
  • the first magnet and the second magnet are arranged opposite each other and their magnetic poles face each other. The repulsive force of the first magnet and the second magnet can keep the rotating hook arm 2213 in a locked state with the limiting slot 251.
  • the probability of the first moving part 221 being abnormally triggered can be reduced, thereby improving the reliability of the first holding part 11 engaging with the first slot 2211.
  • the blocking and limiting member 25 is rotatably connected to the bracket 21, and the locking assembly 20 further includes a third elastic member 26.
  • the third elastic member 26 is located on the side of the blocking and limiting member 25 away from the first movable member 221.
  • the third elastic member 26 abuts against the bracket 21 and the blocking and limiting member 25 respectively.
  • the third elastic element 26 includes a compression spring, an elastic telescopic rod, or a torsion spring.
  • the third elastic member 26 can be a first compression spring.
  • the first compression spring is located on the side of the blocking limit member 25 away from the second movable member 231 and is offset from the rotation center of the blocking limit member 25.
  • One end of the third elastic member 26 abuts against the bracket 21, and the other end abuts against the blocking limit member 25.
  • the blocking limit member 25 tends to rotate toward the first movable member 221 so as to maintain the locking state of the rotating hook arm 2213.
  • the third elastic element 26 enables the rotating hook arm 2213 to remain in a locked state, thereby reducing the probability of the first movable element 221 being abnormally triggered and further improving the reliability of the locking of the first locking part 11. Furthermore, by overcoming the elastic force of the third elastic element 26, the rotating hook arm 2213 can be released from the locked state, facilitating the locking operation of the first locking part 11. At the same time, during the locking process, it can also provide damping force to the first locking part 11 to slow down the speed of entering the first slot 2211.
  • the retaining member 10 further includes a second retaining portion 12, which is spaced apart from the first retaining portion 11 along the first direction Y.
  • the locking component 20 further includes a second locking mechanism 23, which is spaced apart from the first locking mechanism 22 along the first direction Y.
  • the second locking mechanism 23 is movably connected to the bracket 21.
  • the second locking mechanism 23 has a second slot 2311.
  • the second retaining portion 12 has a second locked state where it engages with the second slot 2311 from the insertion end 211, and a second unlocked state where it separates from the second slot 2311 and exits from the insertion end 211.
  • the first direction Y is perpendicular to the insertion direction X.
  • the second locking mechanism 23 When the second locking mechanism 23 is in the second unlocked state, the second locking mechanism 23 has the tendency to slow down the second retaining portion 12 from entering the second slot 2311. When the second retaining portion 12 is in the locked state, the second locking mechanism 23 has the tendency to prevent the second retaining portion 12 from separating from the second slot 2311.
  • the second holding part 12 can be a metal part or a non-metal part.
  • the retaining member 10 also includes a mounting part 13, and the first retaining part 11 and the second retaining part 12 are respectively connected to the mounting part 13, specifically by welding, screw connection, riveting or integral molding.
  • the second holding part 12 is a rod-shaped structure with a card interface 123.
  • the second card slot 2311 has a first wall and a second wall, which are spaced apart. The distance between the first wall and the card insertion end 211 is smaller than the distance between the second wall and the card insertion end 211.
  • the second holding part 12 has a card interface 123, and the first wall is inserted into the card interface 123. A portion of the second holding part 12 is located within the second card slot 2311.
  • the second holding part 12 is a second hook body structure.
  • the second hook body structure includes a second hook head 121 and a second hook handle 122.
  • the second hook head 121 and the second hook handle 122 are connected.
  • the second hook head 121 and the second hook handle 122 together define a second clearance groove 124.
  • the bracket 21 is provided with a first limiting part 212 and a second limiting part 213 for limiting the rotation angle of the second movable member 231.
  • the first limiting part 212 and the second limiting part 213 are disposed at different positions of the bracket 21.
  • the second movable member 231 Before the second holding part 12 engages, the second movable member 231 abuts against the first limiting part 212.
  • the second limiting part 213 is used to limit the rotation angle of the second movable member 231, so that the second movable member 231 rotates between the first limiting part 212 and the second limiting part 213.
  • the second latching part 12 and the second latching slot 2311 can be engaged and disengaged, thereby enabling the door lock device 100 to open when the door is opened and lock when the door is closed.
  • the second locking mechanism 23 includes a second movable member 231 and a fourth elastic member 232.
  • the second movable member 231 is rotatably connected to the bracket 21 and has a second slot 2311.
  • the first connecting end 2321 of the fourth elastic member 232 is connected to the bracket 21, and the second connecting end 2322 of the fourth elastic member 232 is connected to the second movable member 231.
  • the fourth elastic member 232 tends to slow down the second holding part 12 from entering the second slot 2311.
  • the fourth elastic member 232 tends to keep the second holding part 12 engaged with the second slot 2311.
  • the fourth elastic element 232 includes, but is not limited to, any one of a torsion spring or an elastic telescopic rod.
  • the elastic telescopic rod may be the same as the structure listed above.
  • the fourth elastic element 232 can be a first torsion spring
  • the bracket 21 is provided with a first connecting hole
  • the second movable element 231 is provided with a second connecting hole
  • the first connecting end 2321 of the first torsion spring is rotatably connected to the first connecting hole
  • the other end of the first torsion spring is rotatably connected to the second connecting hole
  • the position of the rotatable connection with the second connecting hole is offset from the rotation center of the second movable element 231 relative to the bracket 21.
  • the fourth elastic element 232 can slow down the engagement speed of the second latching part 12. On the one hand, it can buffer the noise of the door 300 impacting the housing 200 when closing, and on the other hand, it can reduce the engagement noise of the second latching part 12. At the same time, it facilitates the opening and closing operations.
  • the second holding part 12 is a hook-shaped structure
  • the second movable part 231 is slidably connected to the bracket 21 along the first direction Y
  • a fourth elastic element 232 is provided between the second movable part 231 and the bracket 21.
  • the fourth elastic element 232 is a compression spring.
  • the end of the slot of the second slot 2311 has an inclined surface on the side near the insertion end 211.
  • the dimension from any point on the inclined surface to the insertion end 211 increases.
  • the second holding part 12 slides on the inclined surface, the second movable part 231 moves relative to the bracket 21, the fourth elastic element 232 is compressed, and the second holding part 12 slides into the second slot 2311 to achieve the snap-fit.
  • the first connecting end 2321 and the bracket 21 have a first rotation center
  • the second connecting end 2322 and the second movable member 231 have a second rotation center
  • the second movable member 231 has a third rotation center relative to the bracket 21, and on the second cross section of the second movable member 231, the straight line passing through the third rotation center and the first rotation center is the second straight line P.
  • the fourth elastic element 232 is a second elastic telescopic rod, which can be one of the structures listed above.
  • One end of the second elastic telescopic rod is rotatably connected to the bracket 21, and the other end is rotatably connected to the second movable element 231.
  • the second movable element 231 is driven to rotate on the same plane perpendicular to the hinge axis of the second elastic telescopic rod and the bracket 21, while the second elastic telescopic rod swings.
  • the trajectory curve of the rotation center between the second elastic telescopic rod and the second movable element 231 intersects the second straight line P. That is, during the engagement process, the direction of the torque of the second elastic telescopic rod acting on the second movable element 231 changes, so as to maintain the engagement state after the second locking part 12 engages and slow down the engagement speed before engagement.
  • the second latching part 12 engages with the second latching slot 2311.
  • the fourth elastic member 232 can slow down the engagement speed of the second latching part 12, which can buffer the noise of the door 300 impacting the housing 200 when closing, and reduce the engagement noise of the second latching part 12.
  • the locking component 20 further includes a second micro switch 282.
  • the second micro switch 282 is disposed on the bracket 21 and located between the first locking mechanism 22 and the second locking mechanism 23.
  • the second moving part 231 triggers the second micro switch 282.
  • connection between the second micro switch 282 and the bracket 21 includes, but is not limited to, snap-fit, screw connection or adhesive connection.
  • the second microswitch 282 can provide a door-closing signal to the second latching part 12 when it is successfully engaged, ensuring that the cooking appliance 1000 performs cooking operations after the door is closed. Taking a microwave oven as an example, this design can prevent the microwave oven from being started when the door is not closed tightly, avoiding potential harm to the human body caused by microwave leakage.
  • a cooking appliance 1000 including a housing 200, a door 300, and a door lock device 100 as described in the above embodiment.
  • the housing 200 has an interior cavity, and a doorway communicating with the cavity is provided at the front end of the housing 200.
  • the door 300 is configured to close to the doorway, and one end of the door 300 is pivotally connected to the housing 200.
  • a retaining member 10 is installed on the door 300, and a first retaining portion 11 extends from the side of the door 300 toward the doorway.
  • a locking assembly 20 is installed inside the housing 200. When the door 300 is closed to the doorway, the first retaining portion 11 is in a first locked state; when the door 300 is open, the first retaining portion 11 is in a first unlocked state.
  • Cooking appliances 1000 can include, but are not limited to, microwave ovens or electric ovens.
  • a cavity is a space used for cooking food.
  • the retaining element 10 can be installed on the door body 300 by means of screws, welding or riveting.
  • the first latching part 11 and the second latching part 12 are spaced vertically. During the closing process of the microwave oven, the first latching part 11 and the second latching part 12 are engaged with the locking component 20, which can improve the reliability of closing the door.
  • the cooking appliance 1000 includes all the technical features of the door lock device 100 described above, and has the same effect as described above, it will not be repeated here.
  • a cooking appliance 1000 which includes, but is not limited to, a microwave oven, a steam oven, and an electric oven.
  • the cooking appliance 1000 includes a housing 200, a door 300, and a door lock device 100.
  • the housing 200 has an opening, and the door 300 is installed at the opening of the housing 200.
  • the door 300 is rotatably connected to the housing 200 to open or close the opening of the housing 200.
  • the door 300 can be rotatably connected to the housing 200 via a hinge.
  • the door lock device 100 connects the housing 200 and the door 300, and is used to open and close the door 300 relative to the housing 200.
  • the door lock device 100 includes a bracket 21, a retaining member 10, a first movable member 221, and a damping member 30.
  • the bracket 21 is mounted on the housing 200, and the retaining member 10 is fixed to the door body 300.
  • the door body 300 is rotatably connected to the housing 200.
  • the first movable member 221 is mounted on the bracket 21 and can rotate relative to the bracket 21. When the first movable member 221 cooperates with the retaining member 10, the retaining member 10 drives the door body.
  • the damping component 30 includes a first buffer portion 33 and a second buffer portion 34 rotatably connected to the first buffer portion 33.
  • the first buffer portion 33 is mounted on the bracket 21, and the second buffer portion 34 extends at least partially into the first movable member 221. During the rotation of the first movable member 221, the first buffer portion 33 and the second buffer portion 34 rotate relative to each other to reduce the rotation speed of the first movable member 221 through damping between the first buffer portion 33 and the second buffer portion 34, thereby reducing the closing speed of the door 300.
  • the damping component 30 can slow down the rotation speed of the first movable member 221, thereby slowing down the closing speed of the door 300. This reduces the noise generated by the collision between the door 300 and the housing 200, improving the user experience.
  • the first buffer portion 33 is mounted on the bracket 21, and the second buffer portion 34 extends at least partially into the first movable member 221. This fully utilizes the space of the door lock device 100, and the gap between the first movable member 221 and the bracket 21 is smaller, making the structure of the door lock device 100 more compact.
  • the bracket 21 serves as a carrier for components such as the first movable part 221, and the bracket 21 can be mounted on the housing 200 using fasteners such as screws. To meet the installation position, structure, and other requirements of different components, the bracket 21 is generally irregular in shape.
  • the retaining member 10 can be installed on the door body 300 by means of welding, threaded connection, snap-fit, etc., so as to fix the retaining member 10 to the door body 300.
  • the first buffer portion 33 and the second buffer portion 34 of the damping component 30 are two parts that rotate relative to each other.
  • a viscous liquid may be provided in the first buffer portion 33 and/or the second buffer portion 34.
  • the viscous liquid can provide resistance, thereby making the first buffer portion 33 and the second buffer portion 34 damped during their relative rotation.
  • the first buffer part 33 can be fixed to the bracket 21 by means of interference fit, threaded connection, snap-fit connection, etc., and the second buffer part 34 can also be installed in the first movable part 221 by means of interference fit, threaded connection, snap-fit connection, etc.
  • the second buffer part 34 can be fully inserted into the first movable part 221, or it can be partially inserted into the first movable part 221.
  • the damping component 30 can be a one-way damper.
  • the one-way damper can slow down the closing speed of the door 300.
  • the one-way damper does not provide damping and will not hinder the opening of the door 300. This reduces the collision between the door 300 and the housing 200 when the door 300 is closing, thus reducing noise.
  • the damping component 30 will not slow down the opening speed of the door 300, making it more effortless and improving the user experience.
  • the opening of the housing 200 refers to the area around the housing 200, and the opening of the housing 200 is used to insert or remove food into the housing 200.
  • the first movable member 221 is provided with a mounting hole 2214, and one end of the second buffer portion 34 is inserted into the mounting hole 2214.
  • the second buffer portion 34 cooperates with the wall of the mounting hole 2214 to apply a buffering force to the first movable member 221.
  • the mounting hole 2214 allows the first movable member 221 and the second buffer portion 34 to have at least partial overlap, thereby making the second buffer portion 34 fit more tightly with the first movable member 221.
  • the mounting hole 2214 can be a non-circular hole, so that after one end of the second buffer part 34 is inserted into the mounting hole 2214, the second buffer part 34 will not rotate circumferentially relative to the first movable member 221, thereby making the second buffer part 34 move synchronously with the first movable member 221.
  • the mounting hole 2214 can also be a circular hole.
  • one end of the second buffer part 34 can be interference-fitted with the mounting hole 2214, or the second buffer part 34 can be restricted from rotating relative to the mounting hole 2214 by means of connecting key or other means.
  • the first movable member 221 is used to rotate between a first position and a second position. During the rotation of the first movable member 221 from the first position to the second position, the door 300 is closed by the holding member 10.
  • the mounting hole 2214 has a stop portion 2215 formed on its wall.
  • one end of the second buffer portion 34 is spaced apart from the stop portion 2215.
  • one end of the first buffer portion 33 cooperates with the stop portion 2215 so that the damping member 30 slows down the rotation speed of the first movable member 221.
  • one end of the second buffer part 34 is spaced apart from the stop part 2215, and the first buffer part 33 and the first movable part 221 can rotate relative to each other.
  • the damping component 30 has no damping effect on the first movable part 221.
  • the damping component 30 plays a damping role on the first movable part 221, slowing down the rotation speed of the first movable part 221, thereby slowing down the closing speed of the door 300.
  • the stop portion 2215 is, for example, a protrusion protruding from the wall of the mounting hole 2214 toward the center of the mounting hole 2214.
  • the side of the protrusion can abut against one end of the first buffer portion 33, thereby causing the first movable member 221 and the second buffer portion 34 to rotate synchronously.
  • the preset angle can be 5-10°, for example, the preset angle can be 5°, 8°, 10°, etc. That is to say, after the first movable member 221 rotates from the first position to the second position by the preset angle, the damping member 30 begins to dampen the first movable member 221.
  • the bracket 21 is provided with a mounting hole 217, and the first buffer portion 33 is at least partially disposed in the mounting hole 217.
  • the first buffer portion 33 can be easily installed on the bracket 21, and the structure between the damping member 30 and the bracket 21 can be more compact.
  • the door lock device 100 includes a first elastic member 222.
  • the first elastic member 222 connects the bracket 21 and the first movable member 221.
  • the first elastic member 222 can apply an elastic force to the first movable member 221 to rotate, thereby driving the door 300 to close through the retaining member 10.
  • the first elastic element 222 allows the door 300 to close automatically when the first movable element 221 engages with the retaining element 10, making the closing process of the door 300 less strenuous and improving the user experience. Furthermore, the elastic force applied by the first elastic element 222 to the first movable element is controllable, resulting in less collision between the door 300 and the housing 200 during closing, thus generating less noise. For example, the first elastic element 222 can drive the first movable element 221 to rotate by pushing, pulling, or other means.
  • the first elastic element 222 includes a torsion spring.
  • the first end 2221 of the torsion spring is connected to the bracket 21, and the second end 2222 of the torsion spring is connected to the first movable element 221.
  • the torsion spring applies a rotational thrust to the first movable element 221 toward the first side.
  • the first side is one side of the first straight line Z passing through the rotation center of the first movable element 221 and the first end 2221 of the torsion spring.
  • the torsion spring applies a rotational thrust to the first movable element 221 toward the second side.
  • the second side is the other side of the first straight line Z passing through the rotation center of the first movable element 221 and the first end 2221 of the torsion spring.
  • the first side and the second side are opposite sides of the first straight line Z.
  • the torsion spring stores energy during the opening of the door 300 and keeps the first movable member 221 rotating in the first direction after the door 300 is opened, so that the first movable member 221 is kept in the first position.
  • the torsion spring can release the stored energy during the closing of the door 300 and make the first movable member 221 rotate in the second direction, so as to drive the door 300 to close through the holding member 10.
  • the first direction is opposite to the second direction, and the first direction is the direction from the second position to the first position.
  • the first movable part 221 is driven to rotate by a torsion spring, which makes the structure of the first elastic part 222 simple and easy to implement.
  • the torsion spring has a low cost, which can reduce the cost of the first elastic part 222.
  • the bracket 21 provides support for the first movable member 221, thereby restricting the first movable member 221 from continuing to rotate in the first direction.
  • the first movable member 221 can rest against the bracket 21.
  • first straight line Z passing through the rotation center of the first movable member 221 and the first end 2221 of the torsion spring is a virtual first straight line.
  • the retaining member 10 engages with the first movable member 221, and the retaining member 10 can drive the first movable member 221 to rotate.
  • the torsion spring stores force.
  • the second end 2222 of the torsion spring is located on the side of the first straight line Z away from the door 300, so that the torsion spring applies a rotational force to the first movable member 221 in the first direction. This force causes the first movable member 221 to act with the bracket 21, so that the first movable member 221 remains stationary.
  • the user first pushes the door 300 (or the handle on the door 300).
  • the door 300 drives the retaining member 10 to move in the closing direction.
  • the retaining member 10 extends into the bracket 21 and engages with the first movable member 221.
  • the retaining member 10 drives the first movable member 221 to rotate.
  • the second end 2222 of the torsion spring is located on the side of the first straight line Z away from the door 300.
  • the torsion spring releases its stored force and drives the first movable member 221 to rotate along the second direction, thereby causing the first movable member 221 to pull the retaining member 10 and drive the door 300 to rotate until it is completely closed.
  • first direction of rotation of the first movable member 221 is the direction in which the first movable member 221 rotates during the process of the door 300 switching from the closed state to the open state, such as the counterclockwise direction shown in Figure 2L.
  • first elastic member 222 can be a tension spring, an electromagnetic drive component, or other components.
  • the door lock device 100 further includes a second elastic member 223 disposed on the bracket 21.
  • the second elastic member 223 applies an elastic force to the first movable member 221 to rotate toward the second position.
  • the elastic force applied by the second elastic element 223 to the first movable element 221 is opposite in direction to the force or component force applied by the torsion spring to the first movable element 221.
  • the holding member 10 can make the first movable element 221 easily overcome the resistance of the torsion spring, thereby making the door 300 easier to close and improving the user experience.
  • the second elastic element 223 includes, but is not limited to, a coil spring, an elastic block, etc., and the shape of the second elastic element 223 is, for example, approximately frustum-shaped.
  • the second elastic element 223 can be fixed to the bracket 21 by snap-fit.
  • the force exerted by the first elastic member 222 on the first movable member 221 can be greater than the force exerted by the second elastic member 223 on the first movable member 221, so that the first movable member 221 can be kept in the first position.
  • the retaining member 10 includes a mounting portion 13 and a first retaining portion 11 disposed on the mounting portion 13.
  • the first retaining portion 11 is formed with a hook
  • the first movable member 221 is formed with a first slot 2211.
  • the hook engages with the first slot 2211, the first movable member 221 can drive the door 300 to close via the first retaining portion 11.
  • the hook of the first holding part 11 engages with the first slot 2211, preventing the first movable part 221 from disengaging from the holding part 10 during rotation, thereby improving the stability of the door 300 being closed by the first movable part 221 through the first holding part 11.
  • the engagement point between the hook and the first slot 2211 can change as the first movable part 221 rotates.
  • the hook and the first slot 2211 remain locked as the engagement point changes; during the opening process of the door 300, the hook and the first slot 2211 can separate as the engagement point changes so that the door 300 can be fully opened.
  • the locking member 10 further includes a second locking member 12 disposed on the mounting part 13.
  • the second locking member 12 is spaced apart from the first locking member 11.
  • the door lock device 100 also includes a second movable member 231 rotatably disposed on the bracket 21. When the door 300 is closed, the second locking member 12 and the second movable member 231 lock together.
  • the second holding part 12 engages with the second moving part 231, which improves the stability of the door 300 when it is closed and reduces the risk of the cooking appliance 1000 being opened abnormally during normal operation.
  • the second movable member 231 may be provided with a pivot hole 2312, and the bracket 21 may be provided with a pivot shaft 216.
  • the second movable member 231 can be fitted onto the pivot shaft 216 through the pivot hole 2312, thereby rotatably connecting with the bracket 21.
  • the second holding part 12 is similar to a sheet-like part, and the second holding part 12 may be formed with a locking hole 125.
  • the second movable member 231 may be provided with a locking block, and the locking hole 125 can cooperate with the locking block, thereby locking the second holding part 12 and the second movable member 231.
  • the mounting part 13, the first retaining part 11, and the second retaining part 12 are an integral structure.
  • the mounting part 13, the first retaining part 11, and the second retaining part 12 can be formed by die casting or other methods.
  • the mounting part 13, the first retaining part 11, and the second retaining part 12 are separate structures, and both the first retaining part 11 and the second retaining part 12 can be fixed to the mounting part 13 by screws or other means.
  • the door lock device 100 further includes a fourth elastic member 232, which connects the second movable member 231 and the bracket 21.
  • the fourth elastic member 232 is used to apply a restoring elastic force to the second movable member 231 when the second holding part 12 is separated from the second movable member 231.
  • the fourth elastic element 232 allows the second movable element 231 to return to its original position after rotation.
  • the fourth elastic element 232 applies a pushing force to the door 300 through the second movable element 231, thereby making it easier to open the door 300 and improving the user experience.
  • the fourth elastic element 232 includes, but is not limited to, components such as torsion springs, tension springs, and motor lead screws.
  • the fourth elastic element 232 is a torsion spring
  • one end of the torsion spring can be inserted into the bracket 21, and the other end can be inserted into the second movable element 231.
  • the door lock device 100 may also include a micro switch 28 disposed on the bracket 21. When the micro switch 28 is triggered, it can be confirmed that the door 300 is in the closed state.
  • the closing process of the cooking appliance 1000 is as follows:
  • a pushing force is applied to the door 300, causing the door 300 to move into the bracket 21.
  • the first holding part 11 pushes the first movable part 221 to rotate
  • the second holding part 12 pushes the second movable part 231 to rotate.
  • the damping component 30 cooperates with the first movable part 221.
  • the second end 2222 of the torsion spring is located on the side of the first straight line Z away from the door 300.
  • the torsion spring releases its stored force and drives the first movable part 221 to rotate along the second direction, thereby causing the first movable part 221 to pull the first holding part 11 to drive the door 300 to continue closing.
  • the damping component 30 can also slow down the closing speed of the door 300.
  • the opening process of the cooking appliance 1000 is the reverse of the closing process, as detailed below:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Lock And Its Accessories (AREA)

Abstract

La présente demande divulgue un dispositif de verrou de porte et un appareil de cuisson. Le dispositif de verrou de porte de la présente demande comprend un élément de fixation et un ensemble de verrouillage, l'élément de fixation étant conçu pour être monté sur une porte, et comprenant une première partie de fixation ; l'ensemble de verrouillage comprend un support, un premier mécanisme de verrouillage et un composant d'amortissement ; le support est conçu pour être relié à un boîtier, et le premier mécanisme de verrouillage est disposé de façon mobile sur le support ; le support est pourvu d'une extrémité de mise en prise, et le premier mécanisme de verrouillage est pourvu d'une première fente ; la première partie de fixation a un premier état verrouillé dans lequel la première partie de fixation entre par l'extrémité de mise en prise et vient en prise dans la première fente, et un premier état déverrouillé dans lequel la première partie de fixation se sépare de la première fente et sort par l'extrémité de mise en prise ; et le support est pourvu d'un premier espace de réception. Lorsqu'une partie corps se déplace vers une première position limite, une force d'amortissement augmente à partir de zéro, à savoir, lorsque la première partie de fixation est sur le point d'être verrouillée, la force d'amortissement est fournie ; à ce moment-là, la porte et le boîtier sont proches l'un de l'autre et sont sur le point d'entrer en collision, et la force d'amortissement peut servir de tampon pour ralentir la vitesse de mise en prise de la première partie de fixation, ce qui permet de réduire le bruit généré par la collision entre la porte et le boîtier, améliorant l'expérience utilisateur.
PCT/CN2025/082131 2024-06-28 2025-03-12 Dispositif de verrou de porte et appareil de cuisson Pending WO2026001079A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202410871138.2A CN118564150A (zh) 2024-06-28 2024-06-28 门锁装置和烹饪电器
CN202410871138.2 2024-06-28
CN202422137617.XU CN223510738U (zh) 2024-08-30 2024-08-30 门锁装置及烹饪电器
CN202422137617.X 2024-08-30

Publications (1)

Publication Number Publication Date
WO2026001079A1 true WO2026001079A1 (fr) 2026-01-02

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PCT/CN2025/082131 Pending WO2026001079A1 (fr) 2024-06-28 2025-03-12 Dispositif de verrou de porte et appareil de cuisson

Country Status (1)

Country Link
WO (1) WO2026001079A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2664737A2 (fr) * 2012-05-15 2013-11-20 Atasan Metal Sanayi Ve Ticaret Limited Sirketi Charnière de porte
JP2014173397A (ja) * 2013-03-13 2014-09-22 Opnus:Kk 扉引き込み装置
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
CN113397403A (zh) * 2021-07-29 2021-09-17 广东美的厨房电器制造有限公司 门锁装置及烹饪器具
CN217054764U (zh) * 2021-12-31 2022-07-26 广东美的厨房电器制造有限公司 门锁装置及烹饪器具
CN217685173U (zh) * 2022-06-01 2022-10-28 广东美的厨房电器制造有限公司 微波烹饪电器
CN115474850A (zh) * 2021-05-31 2022-12-16 广东美的厨房电器制造有限公司 门锁装置及烹饪器具
CN118564150A (zh) * 2024-06-28 2024-08-30 广东美的厨房电器制造有限公司 门锁装置和烹饪电器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2664737A2 (fr) * 2012-05-15 2013-11-20 Atasan Metal Sanayi Ve Ticaret Limited Sirketi Charnière de porte
JP2014173397A (ja) * 2013-03-13 2014-09-22 Opnus:Kk 扉引き込み装置
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
CN115474850A (zh) * 2021-05-31 2022-12-16 广东美的厨房电器制造有限公司 门锁装置及烹饪器具
CN113397403A (zh) * 2021-07-29 2021-09-17 广东美的厨房电器制造有限公司 门锁装置及烹饪器具
CN217054764U (zh) * 2021-12-31 2022-07-26 广东美的厨房电器制造有限公司 门锁装置及烹饪器具
CN217685173U (zh) * 2022-06-01 2022-10-28 广东美的厨房电器制造有限公司 微波烹饪电器
CN118564150A (zh) * 2024-06-28 2024-08-30 广东美的厨房电器制造有限公司 门锁装置和烹饪电器

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