WO2017201844A1 - 开关门装置和冰箱 - Google Patents

开关门装置和冰箱 Download PDF

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Publication number
WO2017201844A1
WO2017201844A1 PCT/CN2016/090229 CN2016090229W WO2017201844A1 WO 2017201844 A1 WO2017201844 A1 WO 2017201844A1 CN 2016090229 W CN2016090229 W CN 2016090229W WO 2017201844 A1 WO2017201844 A1 WO 2017201844A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting rod
shaft hole
door
rotating shaft
hole
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/CN2016/090229
Other languages
English (en)
French (fr)
Inventor
姚君
江明波
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.)
Hefei Hualing Co Ltd
Midea Group Co Ltd
Original Assignee
Hefei Hualing Co Ltd
Midea Group 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
Application filed by Hefei Hualing Co Ltd, Midea Group Co Ltd filed Critical Hefei Hualing Co Ltd
Priority to JP2018562153A priority Critical patent/JP6701387B2/ja
Priority to KR1020187034003A priority patent/KR102190769B1/ko
Priority to EP16902831.3A priority patent/EP3467411B1/en
Publication of WO2017201844A1 publication Critical patent/WO2017201844A1/zh
Priority to US16/198,371 priority patent/US10563444B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • 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
    • 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
    • E05F1/1041—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 with a coil spring perpendicular to the pivot axis
    • E05F1/1066—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 with a coil spring perpendicular to the pivot axis with a traction spring
    • 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
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/614—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by meshing gear wheels, one of which being mounted at the wing pivot axis; operated by a motor acting directly on the wing pivot 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
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/619—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using flexible or rigid rack-and-pinion arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • 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
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/214—Disengaging means
    • 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
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/23—Actuation thereof
    • E05Y2201/246—Actuation thereof by auxiliary motors, magnets, springs or weights
    • 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
    • E05Y2201/46—Magnets
    • E05Y2201/462—Electromagnets
    • 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
    • E05Y2600/10—Adjustable
    • E05Y2600/13—Adjustable by motors, magnets, springs or weights
    • 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
    • E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered

Definitions

  • the present invention relates to the field of refrigeration equipment, and more particularly to a switch door apparatus and a refrigerator including the same.
  • the existing refrigerator especially the large refrigerator of 500 liters or more, generally uses a soft door seal with a magnetic strip for sealing between the door body and the box body, wherein the door seal strip is installed on the door body and is integrated with the door body.
  • the door body is magnetically sucked on the box body by the door seal to realize the sealing between the door body and the box body, thereby achieving the function of heat preservation of the refrigerator.
  • the contact surface of the door seal and the box body is relatively long, and the inside of the refrigerator is a closed space between the box body and the door body, when the door body needs to be opened, due to the negative pressure of the magnetic force and the internal space, a relatively large space is required.
  • the force can be opened generally requires 40 to 70N of force to open, there is a lot of inconvenience for the elderly and children to open the door.
  • the present invention aims to solve at least one of the technical problems existing in the prior art.
  • an embodiment of an aspect of the present invention provides a switch door device for a refrigerator, wherein a door body of the refrigerator is rotatably connected to a case through a rotating shaft, wherein the turn The moving shaft is fixedly connected to the door body, and the rotating shaft is provided with a shaft hole
  • the opening and closing door device comprises: a connecting rod disposed on the door body, the connecting rod includes a first end portion and the a second end portion of the shaft hole; a first driving device connected to the connecting rod for driving the connecting rod to rotate; and a second driving device for driving the connecting rod toward the shaft hole Moving in a direction and inserting the second end of the connecting rod into the shaft hole; and an elastic member, after the second end of the connecting rod is inserted into the shaft hole, the elastic member is compressed to make The elastic member can drive the connecting rod to move away from the shaft hole; wherein the second driving device drives the second end of the connecting rod to be inserted into the shaft hole, the first driving device The rotating shaft is driven to rotate by the connecting rod disposed on the door
  • the rotating door is fixedly connected to the door body, and the door body is rotatably connected to the box body through the rotating shaft.
  • the second driving device drives the connecting rod toward the axis.
  • the direction of the hole moves, and the second end of the connecting rod is inserted into the shaft hole to realize the connection between the connecting rod and the rotating shaft.
  • the first driving device operates, and the first driving device drives the connecting rod to rotate, thereby passing the connecting rod
  • the rotation of the rotating shaft is driven to realize the opening and closing of the door body, thereby realizing the automatic opening and closing of the refrigerator, thereby improving the convenience of the user, especially the elderly and the child, using the refrigerator;
  • the elastic member is compressed, after the second driving device stops working Under the action of the restoring force of the elastic member, the connecting rod moves away from the shaft hole and is disengaged from the shaft hole, so that the rotating shaft is no longer connected with the first driving device, and the opening and closing of the refrigerator can be realized manually. Therefore, when the refrigerator is powered off or the door opening and closing device is abnormal, the door can still be manually opened.
  • both can be energized at the same time.
  • the connecting rod moves toward the axis hole.
  • the connecting rod rotates, that is, the connecting rod rotates while moving in the direction close to the shaft hole and is inserted into the shaft hole; the second driving device and the first driving device can also be energized at different times.
  • the second driving device is energized first, so that under the action of the second driving device, the connecting rod moves in the direction close to the shaft hole and is inserted into the shaft hole, so that the rotating shaft and the connecting rod are connected as a whole, and then the first The driving device is energized to drive the connecting rod to rotate, thereby driving the rotating shaft to rotate.
  • the door body is fixedly connected with a hinge bracket, and the hinge bracket is fixedly connected with a rotating shaft facing the door body, part or all of the rotating shaft is located in the door body, and further, the upper end of the door body is fixedly connected with the upper hinge bracket a first rotating shaft is disposed on the upper hinge bracket, and a lower hinge is fixedly connected to the lower end of the door body a bracket, the lower hinge bracket is provided with a second rotating shaft, the first rotating shaft can be connected or disconnected from the connecting rod of the first opening and closing door device, and/or the second rotating shaft is connected with the second opening and closing door device The rods can be connected or disengaged.
  • switch door device provided by the above embodiment of the present invention further has the following additional technical features:
  • the second driving device is an electromagnet
  • the electromagnet is provided with a first through hole corresponding to the first end of the connecting rod
  • the connecting rod is One end portion penetrates the first through hole, and when the electromagnet is energized, the electromagnet attracts the connecting rod to move the connecting rod in a direction close to the shaft hole.
  • the electromagnet when the electromagnet is energized, the electromagnet attracts the connecting rod, so that the connecting rod moves in a direction close to the shaft hole, and the second end of the connecting rod is inserted into the shaft hole to realize the connection between the connecting rod and the rotating shaft. Therefore, the motor drives the rotating shaft to rotate through the connecting rod, thereby opening the door body.
  • the second driving device can also be a rack and pinion structure, and the movement of the connecting rod in the direction close to the shaft hole is realized by the transmission of the rack and pinion.
  • the elastic member is supported between the first end portion of the connecting rod and the end surface of the electromagnet away from the shaft hole.
  • the elastic member is compressed, and after the electromagnet is de-energized, the connecting rod moves in a direction away from the shaft hole under the restoring force of the elastic member. And the shaft hole is removed from the shaft hole, so that the rotating shaft is no longer connected with the first driving device, and the opening and closing of the refrigerator can be realized manually, so that the door can be manually opened when the refrigerator is powered off or the door opening device is abnormal.
  • the first drive is a motor, preferably a stepper motor.
  • the stepping motor can accurately control the rotation angle of the door and improve the accuracy of the operation of the switch door device.
  • the motor is a DC stepping motor.
  • the switch door device further includes a reduction box connected between the motor and the connecting rod, and an output shaft of the reduction box is opened with a second end of the connecting rod a second through hole adapted to the second through hole of the connecting rod.
  • a reduction gear box is connected between the motor and the second end of the connecting rod, and the motor drives the connecting rod to rotate through the reduction box to drive the rotating shaft to rotate; the reduction box can convert the high speed and low torque of the motor into a low speed. High torque, better driving the rotating shaft to rotate.
  • the second end of the connecting rod has a polygonal cross section.
  • the shaft hole and the second through hole are both polygonal holes that are adapted to the second end of the connecting rod.
  • the setting of the polygonal section can better realize the transmission of torque between the reduction gearbox and the rotating shaft.
  • the polygons may be triangles, quadrangles, and the like.
  • the first end of the connecting rod has a circular cross section, and correspondingly, the first through hole is a circular hole.
  • the axis of the shaft hole, the axis of the second through hole and the axis of the connecting rod coincide, and further, an axis of the shaft hole, an axis of the first through hole
  • the axis of the second through hole coincides with the axis of the connecting rod.
  • the connecting rod moves along the first through hole toward the shaft hole and is inserted into the shaft hole through the second through hole, thereby making the axis of the shaft hole and the first through hole
  • the axis coincides with the axis of the second through hole, which can improve the smoothness of the connecting rod inserted into the shaft hole and improve the reliability of the operation of the switch door device.
  • the elastic member is a coil spring or a spring piece.
  • an end surface of the first end portion of the connecting rod remote from the shaft hole extends outwardly to form an extending portion, and the elastic member is supported between the extending portion and an end surface of the electromagnet at one end away from the shaft hole.
  • the switch door device When the switch door device is not energized, the second end of the connecting rod is disengaged from the shaft hole under the elastic force of the elastic member. Preferably, the second end portion of the connecting rod still penetrates the second through hole, and at this time, the rotating shaft is not
  • the control of the switch door device can manually open and close the door body; after the electromagnet is energized, the electromagnet attracts the connecting rod, the connecting rod moves toward the shaft hole, and the second end of the connecting rod is inserted into the shaft hole, the connecting rod, The output shaft and the rotating shaft of the reduction box are connected as a whole, and are rotated by the motor to realize opening or closing of the door body. At this time, the elastic member is compressed; when the electromagnet is powered off, under the action of the restoring force of the elastic member, The connecting rod moves away from the shaft hole, and the connecting rod is released from the shaft hole.
  • the electromagnet and the motor can also be energized at different times, for example, the electromagnet is energized first, so that under the action of the electromagnet, the connecting rod Move in the direction close to the shaft hole and insert into the shaft hole, so that the output shaft, the rotating shaft and the connecting rod of the reduction gearbox are connected as a whole, then the motor is energized to drive the speed reducer to rotate, and the output shaft of the reduction gear box drives the connecting rod to rotate, thereby driving The rotating shaft rotates.
  • An embodiment of another aspect of the present invention provides a refrigerator including: a casing; a door body, which is rotated The shaft is rotatably connected to the casing, wherein the rotating shaft is fixedly connected to the door body, and the rotating shaft is provided with a shaft hole; and the door opening device according to any one of the above embodiments, A connecting rod of the switch door device is disposed on the door body.
  • the switch door device is disposed on the door body, and the second end portion of the connecting rod is inserted into the shaft hole by the second driving device, and the first driving device drives the connecting rod to rotate to realize the rotation of the rotating shaft.
  • the elastic member drives the connecting rod to move away from the shaft hole, and the connecting rod is separated from the shaft hole.
  • the upper end of the door body is fixedly connected with a first rotating shaft
  • the first rotating shaft is provided with a first shaft hole
  • the opening and closing door device comprises a first opening and closing door device
  • a second end of the connecting rod of the first switch door device is adapted to the first shaft hole
  • a lower end of the door body is fixedly coupled to the second rotating shaft
  • the second rotating shaft is provided with a second a shaft hole
  • the switch door device comprising a second switch door device, the second end of the connecting rod of the second switch door device being adapted to the second shaft hole.
  • a switch door device may be disposed on the refrigerator.
  • the connecting rod of the first switch door device can be connected or disengaged from the first rotating shaft, so that the first switch door device drives the first rotating shaft to rotate
  • the connecting rod of the second opening and closing door device can be connected or disengaged from the second rotating shaft, so that the second opening and closing door device drives the second rotating shaft to rotate.
  • the first opening and closing door device and the second opening and closing door can also be provided at the same time. And causing the first opening and closing door device to drive the first rotating shaft to rotate while the second opening and closing door device drives the second rotating shaft to rotate.
  • FIG. 1 is a perspective view of a three-dimensional structure of a switch door device according to an embodiment of the present invention, wherein a second end of the connecting rod is not inserted into the shaft hole;
  • FIG. 2 is a schematic structural view of a viewing angle of the switch door device shown in FIG. 1 in cooperation with a rotating shaft;
  • FIG 3 is a schematic view showing the structure of the switch door device shown in Figure 1 in cooperation with the rotating shaft;
  • Figure 4 is a cross-sectional structural view taken along line A-A of Figure 3;
  • FIG. 5 is a schematic view showing the structure of the switch door device shown in Figure 1 in combination with the rotating shaft;
  • Figure 6 is a perspective view showing the three-dimensional structure of the switch door device and the rotating shaft according to the embodiment of the present invention, wherein the second end of the connecting rod is inserted into the shaft hole;
  • Figure 7 is a schematic view showing the structure of the switch door device shown in Figure 6 in cooperation with the rotating shaft;
  • Figure 8 is a cross-sectional structural view taken along line B-B of Figure 7;
  • Figure 9 is a cross-sectional structural view taken along line C-C of Figure 7;
  • Figure 10 is a schematic view showing the structure of the switch door device shown in Figure 6 in cooperation with the rotating shaft;
  • Figure 11 is a cross-sectional structural view taken along line D-D of Figure 10;
  • Figure 12 is a schematic view showing the structure of the switch door device shown in Figure 6 in combination with the rotating shaft.
  • a switch door device As shown in FIG. 1 to FIG. 4, FIG. 6, FIG. 7, FIG. 10 and FIG. 11, a switch door device according to some embodiments of the present invention is used for a refrigerator, and a door body of the refrigerator passes through a rotating shaft 20 and a cabinet.
  • the rotatable connection wherein the rotating shaft 20 is fixedly connected to the door body, and the rotating shaft 20 is provided with a shaft hole 201.
  • the switching door device comprises a connecting rod 2, a first driving device, a second driving device and an elastic member 4.
  • the connecting rod 2 is arranged on the door body, the connecting rod 2 comprises a first end portion 21 and a second end portion 22 adapted to the shaft hole 201; the first driving device is connected with the connecting rod 2 for driving connection Rod 2 rotates; second The driving device is configured to drive the connecting rod 2 to move in a direction close to the shaft hole 201, and insert the second end portion 22 of the connecting rod 2 into the shaft hole 201; after the second end portion 22 of the connecting rod 2 is inserted into the shaft hole 201, the elastic member 4 is compressed, so that the elastic member 4 drives the connecting rod 2 to move away from the shaft hole 201; after the second driving device drives the second end portion 22 of the connecting rod 2 to be inserted into the shaft hole 201, the first driving device passes through the connecting rod 2 The rotating shaft 20 is rotated to rotate the door body relative to the casing.
  • the rotating door 20 is fixedly connected to the door body, and the door body is rotatably connected to the box through the rotating shaft 20.
  • the second driving device drives the connecting rod 2 Moving in a direction close to the shaft hole 201, and inserting the second end portion 22 of the connecting rod 2 into the shaft hole 201, the connection between the connecting rod 2 and the rotating shaft 20 is realized.
  • the first driving device operates, the first driving device
  • the connecting rod 2 is driven to rotate, so that the rotating shaft 20 is rotated by the connecting rod 2, thereby opening and closing the door body, thereby realizing the automatic opening and closing of the refrigerator, thereby improving the convenience of the user, especially the elderly and children, using the refrigerator;
  • the piece 4 is compressed, and after the second driving device stops working, under the action of the restoring force of the elastic member 4, the connecting rod 2 moves away from the shaft hole 201 and is disengaged from the shaft hole 201, so that the rotating shaft 20 No longer connected with the first driving device, the opening and closing of the refrigerator can be realized manually, so that when the refrigerator is powered off or the door opening device is abnormal, the door can still be manually opened and closed.
  • both of them can be energized at the same time.
  • the connecting rod 2 is close to the shaft hole 201.
  • the connecting rod 2 rotates, that is, the connecting rod 2 rotates while moving in the direction of the shaft hole 201 and is inserted into the shaft hole 201; the second driving device and the first driving The device may also be energized at the same time.
  • the second driving device is energized first, so that under the action of the second driving device, the connecting rod 2 moves in the direction close to the shaft hole 201 and is inserted into the shaft hole 201, so that the rotating shaft 20 and The connecting rod 2 is connected as a whole, and then the first driving device is energized to drive the connecting rod 2 to rotate, thereby driving the rotating shaft 20 to rotate.
  • the door body is fixedly connected with a hinge bracket 30, and the hinge bracket 30 is fixedly connected with a rotating shaft 20 facing the door body, and part or all of the rotating shaft 20 is located in the door body.
  • the upper end of the door body is fixedly connected with an upper hinge bracket
  • the upper hinge bracket is provided with a first rotating shaft
  • the lower end of the door body is fixedly connected with a lower hinge bracket
  • the lower hinge bracket is provided with a second rotating shaft
  • the first rotating shaft can be connected or disengaged from the connecting rod 2 of the first opening and closing door device
  • the second rotating shaft can be connected or disengaged from the connecting rod 2 of the second opening and closing door device.
  • the second driving device is an electromagnet 3, and the electromagnet 3 is open to the first end portion 21 of the connecting rod 2.
  • the first through hole 31 of the connecting rod 2 penetrates the first through hole 31.
  • the electromagnet 3 attracts the connecting rod 2, and the connecting rod 2 is directed toward the shaft hole 201. motion.
  • the electromagnet 3 when the electromagnet 3 is energized, the electromagnet 3 attracts the connecting rod 2, so that the connecting rod 2 moves in a direction close to the shaft hole 201 (downward direction in FIG. 10), and the second end of the connecting rod 2
  • the portion 22 is inserted into the shaft hole 201 to realize the connection between the connecting rod 2 and the rotating shaft 20, so that the motor 1 drives the rotating shaft 20 to rotate by the connecting rod 2, thereby opening the door body.
  • the second driving device can also be a rack and pinion structure, and the movement of the connecting rod 2 in the direction close to the shaft hole 201 is realized by the transmission of the rack and pinion.
  • the elastic member 4 is supported on the first end portion 21 of the connecting rod 2 and the end surface of the electromagnet 3 away from the shaft hole 201. between.
  • the elastic member 4 is compressed. After the electromagnet 3 is de-energized, under the action of the restoring force of the elastic member 4, the connecting rod 2 is oriented. Moving away from the direction of the shaft hole 201 (upward direction in FIG. 1) and coming out of the shaft hole 201, so that the rotating shaft 20 is no longer connected with the first driving device, and the opening and closing door of the refrigerator can be manually realized, thereby being in the refrigerator When the power is turned off or the door opening device is abnormal, the door can still be manually opened.
  • the first drive means is a motor 1, preferably a stepper motor 1.
  • the stepping motor 1 can accurately control the rotation angle of the door and improve the accuracy of the operation of the switch door device.
  • the motor 1 is a DC stepping motor 1.
  • the switch door device further includes a reduction gear box 5 connected between the motor 1 and the connecting rod 2, and the output shaft of the reduction gear box 5 is provided with a connecting rod
  • the second end portion 22 of the second end portion 22 of the second end 22 is adapted to extend through the second through hole 51.
  • a reduction gear box 5 is connected between the motor 1 and the second end portion 22 of the connecting rod 2.
  • the motor 1 drives the connecting rod 2 to rotate by the reduction gear box 5, thereby rotating the rotating shaft 20; the reduction gear box 5 can drive the motor
  • the high speed and low torque of 1 are converted into low speed and high torque, which better drives the rotating shaft 20 to rotate.
  • the cross section of the second end 22 of the connecting rod 2 is multilateral
  • the shaft hole 201 and the second through hole 51 are both polygonal holes that are fitted to the second end portion 22 of the connecting rod 2.
  • the arrangement of the polygonal cross section can better realize the transmission of the torque between the reduction gear box 5 and the rotating shaft 20.
  • the polygons may be triangles, quadrangles, and the like.
  • the first end portion 21 of the connecting rod 2 has a circular cross section, and correspondingly, the first through hole 31 is a circular hole.
  • the axis of the shaft hole 201, the axis of the first through hole 31, the axis of the second through hole 51, and the axis of the connecting rod 2 coincide.
  • the connecting rod 2 moves in the direction of the first through hole 31 toward the shaft hole 201, and is inserted into the shaft hole 201 through the second through hole 51, thereby making the shaft hole 201
  • the axis, the axis of the first through hole 31 and the axis of the second through hole 51 coincide, which can improve the smoothness of the connecting rod 2 inserted into the shaft hole 201, and improve the reliability of the operation of the opening and closing door device.
  • the elastic member 4 is a coil spring or a spring piece.
  • the end surface of the first end portion 21 of the connecting rod 2 remote from the shaft hole 201 extends outwardly to form an extending portion 211, and the elastic member 4 is supported at the end surface of the extending portion 211 and the end of the electromagnet 3 away from the shaft hole 201. between.
  • both of them can be energized at the same time.
  • the connecting rod 2 moves in the direction close to the shaft hole 201, and at the same time in the motor 1
  • the connecting rod 2 rotates, that is, the connecting rod 2 rotates while moving in the direction close to the shaft hole 201 and is inserted into the shaft hole 201;
  • the electromagnet 3 and the motor 1 can also be energized at different times, for example
  • the electromagnet 3 is energized first, so that under the action of the electromagnet 3, the connecting rod 2 moves in the direction close to the shaft hole 201 and is inserted into the shaft hole 201, so that the output shaft of the reduction gear box 5, the rotating shaft 20 and the connecting rod 2
  • the motor 1 is energized to drive the reduction gear box 5 to rotate, and the output shaft of the reduction gear box 5 drives the connecting rod 2 to rotate,
  • An embodiment of the present invention provides a refrigerator, comprising: a box body, a door body, and the door opening device according to any of the above embodiments; the door body is rotatably connected to the box body through the rotating shaft 20, wherein the rotating body The shaft 20 is fixedly connected to the door body, and the shaft 20 is opened on the rotating shaft 20; the connecting rod 2 of the opening and closing door device is disposed on the door body.
  • the door opening and closing device is disposed on the door body, and the second end portion 22 of the connecting rod 2 is inserted into the shaft hole 201 by the second driving device, and the first driving device drives the connecting rod 2 to rotate. Rotation of the shaft 20 to realize automatic switching of the door body.
  • the elastic member 4 drives the connecting rod 2 to move away from the shaft hole 201, and the connecting rod 2 and the shaft The holes 201 are separated.
  • the upper end of the door body is fixedly connected with a first rotating shaft
  • the first rotating shaft is provided with a first shaft hole
  • the opening and closing door device comprises a first opening and closing door device, and the second end of the connecting rod of the first opening and closing door device
  • the second shaft hole is fixedly connected to the lower end of the door body
  • the second rotating shaft is fixedly connected to the lower end of the door body
  • the second door opening device is opened on the second rotating shaft
  • the second door opening and closing device is included in the second door opening and closing device
  • the second end of the connecting rod is adapted to the second shaft hole.
  • a switch door device may be disposed on the refrigerator.
  • the first switch door device drives the first rotating shaft to rotate
  • the second switch door device drives the second rotating shaft to rotate.
  • the first switch can also be set at the same time.
  • the door opening and closing device and the second door opening and closing device are configured to cause the first door opening and closing device to drive the first rotating shaft to rotate, and the second opening and closing door device to drive the second rotating shaft to rotate.
  • the switch door device provided by the embodiment of the present invention, when the second driving device is in operation, the second driving device drives the connecting rod 2 to move toward the shaft hole 201 to realize the connection between the connecting rod 2 and the rotating shaft 20, At this time, the first driving device operates, and the first driving device drives the connecting rod 2 to rotate, so that the rotating shaft 20 is rotated by the connecting rod 2 to realize opening and closing of the door body; after the second driving device stops working, the elastic member Under the action of the restoring force of 4, the connecting rod 2 moves away from the shaft hole 201, and the rotating shaft 20 is no longer connected with the first driving device, and the opening and closing of the refrigerator can be realized manually, thereby powering off the refrigerator or opening and closing the door device. When an abnormality occurs, the door can still be manually opened.
  • connection means two or more unless specifically stated or defined otherwise; unless otherwise specified or stated, the terms “connected”, “fixed”, etc. It is understood that, for example, the “connection” may be a fixed connection, a detachable connection, or an integral connection, or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium.
  • connection may be a fixed connection, a detachable connection, or an integral connection, or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium.
  • the description of the terms “one embodiment”, “some embodiments”, “specific embodiments” and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in the present invention. At least one embodiment or example.
  • the schematic representation of the above terms does not necessarily refer to the same embodiment or example.
  • the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

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Abstract

一种开关门装置和冰箱，冰箱的门体通过转动轴与箱体能够转动的连接，其中，转动轴与门体固定连接，该开关门装置包括连接杆（2）、第一驱动装置、第二驱动装置和弹性件（4），连接杆（2）设置在门体上，连接杆（2）包括第一端部（21）和与轴孔（201）相适配的第二端部（22）；第一驱动装置与连接杆（2）相连接，用于驱动连接杆（2）转动；第二驱动装置用于驱动连接杆向靠近轴孔（201）的方向运动，并使连接杆（2）的第二端部（22）插入轴孔（201）；连接杆（2）的第二端部（22）插入轴孔（201）后，弹性件（4）被压缩，以使弹性件（4）带动连接杆（2）向远离轴孔（201）的方向运动；其中，第二驱动装置（22）带动连接杆（2）插入轴孔（201）后，第一驱动装置通过连接杆（2）带动转动轴转动，以使门体相对于箱体转动。该开关门装置，能够实现冰箱的自动开关门。

Description

开关门装置和冰箱
本申请要求于2016年05月27日提交中国专利局、申请号为201610384164.8、发明名称为“开关门装置和冰箱”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及制冷设备领域，更具体而言，涉及一种开关门装置和包括该开关门装置的冰箱。
背景技术
现有的冰箱，特别是500升以上的大冰箱，门体与箱体之间普遍使用带磁条的软质门封条进行密封，其中，门封条安装在门体上，和门体成一个整体，门体依靠门封条磁力吸在箱体上，实现门体与箱体之间的密封，从而达到冰箱保温的作用。
由于门封条与箱体接触面比较长，加上箱体与门体之间由于密封造成冰箱内部为一个密闭空间，当需要打开门体时，由于磁力和内部空间的负压，需要一个比较大的力才能打开，一般需要40～70N的力才能打开，老人和小孩开门存在很多不便。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。
为此，本发明的一个方面的目的在于提供一种开关门装置。
本发明的另一个方面的目的在于提供一种包括上述开关门装置的冰箱。
为实现上述目的，本发明的一个方面的实施例提供了一种开关门装置，用于冰箱，所述冰箱的门体通过转动轴与箱体能够转动的连接，其中，所述转 动轴与所述门体固定连接，所述转动轴上开设有轴孔，该开关门装置包括：连接杆，设置在所述门体上，所述连接杆包括第一端部和与所述轴孔相适配的第二端部；第一驱动装置，与所述连接杆相连接，用于驱动所述连接杆转动；第二驱动装置，用于驱动所述连接杆向靠近所述轴孔的方向运动，并使所述连接杆的第二端部插入所述轴孔；和弹性件，所述连接杆的第二端部插入所述轴孔后，所述弹性件被压缩，以使所述弹性件能够带动所述连接杆向远离所述轴孔的方向运动；其中，所述第二驱动装置驱动所述连接杆的第二端部插入所述轴孔后，所述第一驱动装置通过所述连接杆驱动所述转动轴转动，以使所述门体相对于所述箱体转动。
本发明上述实施例提供的开关门装置，转动轴与门体固定连接，且门体通过转动轴与箱体能够转动的连接，第二驱动装置工作时，第二驱动装置带动连接杆向靠近轴孔的方向运动，并使连接杆的第二端部插入轴孔内，实现连接杆与转动轴的连接，此时，第一驱动装置工作，第一驱动装置带动连接杆转动，从而通过连接杆带动转动轴转动，实现门体的打开和闭合，从而实现冰箱的自动开关门，提高用户尤其是老人和孩子使用冰箱的便利性；此时，弹性件被压缩，在第二驱动装置停止工作后，在弹性件的回复力的作用下，连接杆向远离轴孔的方向运动，并从轴孔中脱出，这样，转动轴不再跟第一驱动装置相连接，手动可以实现冰箱的开关门，从而在冰箱断电或开关门装置异常时，仍可以手动实现开关门。
需要说明的是，关于第二驱动装置和第一驱动装置通电(工作)的先后顺序，两者可以同时通电，此时，在第二驱动装置的作用下，连接杆向靠近轴孔的方向运动，同时在第一驱动装置的带动下，连接杆发生转动，即连接杆一边转动，一边向靠近轴孔的方向运动并插入轴孔内；第二驱动装置和第一驱动装置也可以不同时通电，例如，第二驱动装置先通电，这样，在第二驱动装置的作用下，连接杆向靠近轴孔的方向运动并插入轴孔内，使得转动轴和连接杆连为一个整体，然后第一驱动装置通电，带动连接杆转动，进而带动转动轴转动。
优选地，门体上固定连接有铰链托架，铰链托架上固定连接有朝向门体的转动轴，转动轴的部分或全部位于门体内，进一步地，门体的上端固定连接有上铰链托架，上铰链托架上设置有第一转动轴，门体的下端固定连接有下铰链 托架，下铰链托架上设置有第二转动轴，第一转动轴与第一开关门装置的连接杆能够相连接或相脱离，和/或第二转动轴与第二开关门装置的连接杆能够相连接或相脱离。
另外，本发明上述实施例提供的开关门装置还具有如下附加技术特征：
上述技术方案中，优选地，所述第二驱动装置为电磁铁，所述电磁铁上开设有与所述连接杆的第一端部相适配的第一通孔，所述连接杆的第一端部贯穿所述第一通孔，所述电磁铁通电时，所述电磁铁吸引所述连接杆，使所述连接杆向靠近所述轴孔的方向运动。
上述实施例中，在电磁铁通电时，电磁铁吸引连接杆，使得连接杆向靠近轴孔的方向运动，且连接杆的第二端部插入轴孔内，实现连接杆与转动轴的连接，从而电机通过连接杆驱动转动轴转动，实现门体的打开。当然，第二驱动装置也可以为齿轮齿条结构，通过齿轮齿条的传动，实现连接杆向靠近轴孔的方向的运动。
上述技术方案中，优选地，所述弹性件支撑在所述连接杆的第一端部和所述电磁铁上远离所述轴孔的端面之间。
上述实施例中，连接杆的第二端部插入轴孔内后，弹性件被压缩，在电磁铁断电后，在弹性件的回复力的作用下，连接杆向远离轴孔的方向运动，并从轴孔中脱出，这样，转动轴不再跟第一驱动装置相连接，手动可以实现冰箱的开关门，从而在冰箱断电或开关门装置异常时，仍可以手动实现开关门。
第一驱动装置为电机，优选地，为步进电机。
步进电机能够精确的控制门的旋转角度，提高开关门装置工作的精确度，优选地，电机为直流步进电机。
上述技术方案中，优选地，所述开关门装置还包括减速箱，连接在所述电机与所述连接杆之间，所述减速箱的输出轴上开设有与所述连接杆的第二端部相适配的第二通孔，所述连接杆的第二端部贯穿所述第二通孔。
上述实施例中，电机和连接杆的第二端部之间连接有减速箱，电机通过减速箱带动连接杆转动，从而带动转动轴转动；减速箱能够将电机的高转速低扭矩转换为低转速高扭矩，更好的带动转动轴转动。
上述技术方案中，优选地，所述连接杆的第二端部的横截面呈多边形， 所述轴孔和所述第二通孔均为与所述连接杆的第二端部相适配的多边形孔。
多边形截面的设置，能够更好的实现减速箱到转动轴之间力矩的传递。多边形可以为三角形、四边形等。
优选地，连接杆的第一端部的横截面呈圆形，相应的，第一通孔为圆孔。
上述技术方案中，优选地，所述轴孔的轴线、所述第二通孔的轴线和所述连接杆的轴线重合，进一步地，所述轴孔的轴线、所述第一通孔的轴线、所述第二通孔的轴线和所述连接杆的轴线重合。
上述实施例中，在电磁铁通电时，连接杆沿第一通孔向靠近轴孔的方向运动，并穿过第二通孔插入轴孔内，因此，使轴孔的轴线、第一通孔的轴线和第二通孔的轴线重合，能够提高连接杆插入轴孔中的顺畅度，提高开关门装置工作的可靠性。
上述技术方案中，优选地，所述弹性件为螺旋弹簧或弹片。
优选地，连接杆的第一端部的远离轴孔的端面向外周向延伸形成延伸部，弹性件支撑在延伸部和电磁铁的远离轴孔的一端的端面之间。
开关门装置未通电时，在弹性件的弹力作用下，连接杆的第二端部脱离轴孔，优选地，连接杆的第二端部仍贯穿第二通孔，此时，转动轴不受开关门装置的控制，可以随意手动开关门体；电磁铁通电后，电磁铁吸引连接杆，连接杆向靠近轴孔的方向运动，且连接杆的第二端部插入轴孔内，连接杆、减速箱输出轴、转动轴连接成一个整体，在电机的带动下转动，实现门体的打开或关闭，此时弹性件被压缩；电磁铁断电时，在弹性件的回复力的作用下，连接杆向远离轴孔的方向运动，连接杆从轴孔中脱出。
需要说明的是，关于电磁铁和电机的通电顺序，两者可以同时通电，此时，在电磁铁的作用下，连接杆向靠近轴孔的方向运动，同时在电机的带动下，连接杆发生转动，即连接杆一边转动，一边向靠近轴孔的方向运动并插入轴孔内；电磁铁和电机也可以不同时通电，例如，电磁铁先通电，这样，在电磁铁的作用下，连接杆向靠近轴孔的方向运动并插入轴孔内，使得减速箱输出轴、转动轴和连接杆连为一个整体，然后电机通电，带动减速箱旋转，通过减速箱输出轴带动连接杆转动，进而带动转动轴转动。
本发明另一个方面的实施例提供一种冰箱，包括：箱体；门体，通过转动 轴与所述箱体能够转动的连接，其中，所述转动轴与所述门体固定连接，所述转动轴上开设有轴孔；和上述任一实施例所述的开关门装置，所述开关门装置的连接杆设置在所述门体上。
本发明上述实施例提供的冰箱，开关门装置设置在门体上，通过第二驱动装置带动连接杆的第二端部插入轴孔，第一驱动装置带动连接杆转动，实现转动轴的转动，以实现门体的自动开关，当第一驱动装置和第二驱动装置不工作时，弹性件带动连接杆向远离轴孔的方向运动，并使得连接杆与轴孔相分离。
上述技术方案中，优选地，所述门体的上端固定连接有第一转动轴，所述第一转动轴上开设有第一轴孔，所述开关门装置包括第一开关门装置，所述第一开关门装置的连接杆的第二端部与所述第一轴孔相适配；和/或所述门体的下端固定连接有第二转动轴，所述第二转动轴上开设有第二轴孔，所述开关门装置包括第二开关门装置，所述第二开关门装置的连接杆的第二端部与第二轴孔相适配。
上述实施例中，可以在冰箱上设置一个开关门装置，例如第一开关门装置的连接杆与第一转动轴能够相连接或相脱离，实现第一开关门装置驱动第一转动轴转动，或者，第二开关门装置的连接杆与第二转动轴能够相连接或相脱离，使得第二开关门装置驱动第二转动轴转动，当然，也可以同时设置第一开关门装置和第二开关门装置，并使得第一开关门装置驱动第一转动轴转动，同时第二开关门装置驱动第二转动轴转动。
本发明的附加方面和优点将在下面的描述部分中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是本发明的实施例所述的开关门装置与转动轴配合的立体结构示意图，其中，连接杆的第二端部未插入轴孔；
图2是图1所示的开关门装置与转动轴配合的一个视角的结构示意图；
图3是图1所示的开关门装置与转动轴配合的另一个视角的结构示意图；
图4是图3中A-A向的剖视结构示意图；
图5是图1所示的开关门装置与转动轴配合的再一个视角的结构示意图；
图6是本发明的实施例所述的开关门装置与转动轴配合的立体结构示意图，其中，连接杆的第二端部插入轴孔；
图7是图6所示的开关门装置与转动轴配合的一个视角的结构示意图；
图8是图7中B-B向的剖视结构示意图；
图9是图7中C-C向的剖视结构示意图；
图10是图6所示的开关门装置与转动轴配合的另一个视角的结构示意图；
图11是图10中D-D向的剖视结构示意图；
图12是图6所示的开关门装置与转动轴配合的再一个视角的结构示意图。
其中，图1至图12中附图标记与部件名称之间的对应关系为：
1电机，2连接杆，21第一端部，211延伸部，22第二端部，3电磁铁，31第一通孔，4弹性件，5减速箱，51第二通孔，20转动轴，201轴孔，30铰链托架。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
下面参照附图描述根据本发明一些实施例的开关门装置和冰箱。
如图1至图4、图6、图7、图10和图11所示，根据本发明一些实施例提供的一种开关门装置，用于冰箱，冰箱的门体通过转动轴20与箱体能够转动的连接，其中，转动轴20与门体固定连接，转动轴20上开设有轴孔201，该开关门装置包括连接杆2、第一驱动装置、第二驱动装置和弹性件4。其中，连接杆2设置在门体上，连接杆2包括第一端部21和与轴孔201相适配的第二端部22；第一驱动装置与连接杆2相连接，用于驱动连接杆2转动；第二 驱动装置用于驱动连接杆2向靠近轴孔201的方向运动，并使连接杆2的第二端部22插入轴孔201；连接杆2的第二端部22插入轴孔201后，弹性件4被压缩，以使弹性件4带动连接杆2向远离轴孔201的方向运动；第二驱动装置带动连接杆2的第二端部22插入轴孔201后，第一驱动装置通过连接杆2带动转动轴20转动，以使门体相对于箱体转动。
本发明上述实施例提供的开关门装置，转动轴20与门体固定连接，且门体通过转动轴20与箱体能够转动的连接，第二驱动装置工作时，第二驱动装置带动连接杆2向靠近轴孔201的方向运动，并使连接杆2的第二端部22插入轴孔201内，实现连接杆2与转动轴20的连接，此时，第一驱动装置工作，第一驱动装置带动连接杆2转动，从而通过连接杆2带动转动轴20转动，实现门体的打开和闭合，从而实现冰箱的自动开关门，提高用户尤其是老人和孩子使用冰箱的便利性；此时，弹性件4被压缩，在第二驱动装置停止工作后，在弹性件4的回复力的作用下，连接杆2向远离轴孔201的方向运动，并从轴孔201中脱出，这样，转动轴20不再跟第一驱动装置相连接，手动可以实现冰箱的开关门，从而在冰箱断电或开关门装置异常时，仍可以手动实现开关门。
需要说明的是，关于第二驱动装置和第一驱动装置通电(工作)的先后顺序，两者可以同时通电，此时，在第二驱动装置的作用下，连接杆2向靠近轴孔201的方向运动，同时在第一驱动装置的带动下，连接杆2发生转动，即连接杆2一边转动，一边向靠近轴孔201的方向运动并插入轴孔201内；第二驱动装置和第一驱动装置也可以不同时通电，例如，第二驱动装置先通电，这样，在第二驱动装置的作用下，连接杆2向靠近轴孔201的方向运动并插入轴孔201内，使得转动轴20和连接杆2连为一个整体，然后第一驱动装置通电，带动连接杆2转动，进而带动转动轴20转动。
优选地，如图1和图2所示，门体上固定连接有铰链托架30，铰链托架30上固定连接有朝向门体的转动轴20，转动轴20的部分或全部位于门体内，进一步地，门体的上端固定连接有上铰链托架，上铰链托架上设置有第一转动轴，门体的下端固定连接有下铰链托架，下铰链托架上设置有第二转动轴，第一转动轴与第一开关门装置的连接杆2能够相连接或相脱离，和/或第二转动轴与第二开关门装置的连接杆2能够相连接或相脱离。本专利将以下铰链托架 和第二转动轴为例说明开关门装置的工作原理。
优选地，如图1至图4、图6、图7、图10和图11所示，第二驱动装置为电磁铁3，电磁铁3上开设有与连接杆2的第一端部21相适配的第一通孔31，连接杆2的第一端部21贯穿第一通孔31，电磁铁3通电时，电磁铁3吸引连接杆2，使连接杆2向靠近轴孔201的方向运动。
上述实施例中，在电磁铁3通电时，电磁铁3吸引连接杆2，使得连接杆2向靠近轴孔201的方向(图10中向下的方向)运动，且连接杆2的第二端部22插入轴孔201内，实现连接杆2与转动轴20的连接，从而电机1通过连接杆2驱动转动轴20转动，实现门体的打开。当然，第二驱动装置也可以为齿轮齿条结构，通过齿轮齿条的传动，实现连接杆2向靠近轴孔201的方向的运动。
优选地，如图1至图4、图6、图7、图10和图11所示，弹性件4支撑在连接杆2的第一端部21和电磁铁3上远离轴孔201的端面之间。
上述实施例中，连接杆2的第二端部22插入轴孔201内后，弹性件4被压缩，在电磁铁3断电后，在弹性件4的回复力的作用下，连接杆2向远离轴孔201的方向(图1中向上的方向)运动，并从轴孔201中脱出，这样，转动轴20不再跟第一驱动装置相连接，手动可以实现冰箱的开关门，从而在冰箱断电或开关门装置异常时，仍可以手动实现开关门。
第一驱动装置为电机1，优选地，为步进电机1。
步进电机1能够精确的控制门的旋转角度，提高开关门装置工作的精确度，优选地，电机1为直流步进电机1。
优选地，如图1至图7、图10至图12所示，开关门装置还包括减速箱5，连接在电机1与连接杆2之间，减速箱5的输出轴上开设有与连接杆2的第二端部22相适配的第二通孔51，连接杆2的第二端部22贯穿第二通孔51。
上述实施例中，电机1和连接杆2的第二端部22之间连接有减速箱5，电机1通过减速箱5带动连接杆2转动，从而带动转动轴20转动；减速箱5能够将电机1的高转速低扭矩转换为低转速高扭矩，更好的带动转动轴20转动。
优选地，如图8和图9所示，连接杆2的第二端部22的横截面呈多边 形，轴孔201和第二通孔51均为与连接杆2的第二端部22相适配的多边形孔。
多边形截面的设置，能够更好的实现减速箱5到转动轴20之间力矩的传递。多边形可以为三角形、四边形等。
优选地，连接杆2的第一端部21的横截面呈圆形，相应的，第一通孔31为圆孔。
优选地，轴孔201的轴线、第一通孔31的轴线、第二通孔51的轴线和连接杆2的轴线重合。
上述实施例中，在电磁铁3通电时，连接杆2沿第一通孔31向靠近轴孔201的方向运动，并穿过第二通孔51插入轴孔201内，因此，使轴孔201的轴线、第一通孔31的轴线和第二通孔51的轴线重合，能够提高连接杆2插入轴孔201中的顺畅度，提高开关门装置工作的可靠性。
优选地，如图1至图7、图10和图11所示，弹性件4为螺旋弹簧或弹片。
优选地，连接杆2的第一端部21的远离轴孔201的端面向外周向延伸形成延伸部211，弹性件4支撑在延伸部211和电磁铁3的远离轴孔201的一端的端面之间。
如图1至图4所示，开关门装置未通电时，在弹性件4的弹力作用下，连接杆2的第二端部22脱离轴孔201，优选地，连接杆2的第二端部22仍贯穿第二通孔51，此时，转动轴20不受开关门装置控制，可以随意手动开关门体；如图6、图7、图10和图11所示，电磁铁3通电后，电磁铁3吸引连接杆2，连接杆2向靠近轴孔201的方向(向下)运动，且连接杆2的第二端部22插入轴孔201内，连接杆2、减速箱5输出轴、转动轴20连接成一个整体，在电机1的带动下转动，实现门体的打开或关闭，此时弹性件4被压缩；电磁铁3断电时，在弹性件4的回复力的作用下，连接杆2向远离轴孔201的方向(向上)运动，连接杆2从轴孔201中脱出。
需要说明的是，关于电磁铁3和电机1的通电顺序，两者可以同时通电，此时，在电磁铁3的作用下，连接杆2向靠近轴孔201的方向运动，同时在电机1的带动下，连接杆2发生转动，即连接杆2一边转动，一边向靠近轴孔201的方向运动并插入轴孔201内；电磁铁3和电机1也可以不同时通电，例 如，电磁铁3先通电，这样，在电磁铁3的作用下，连接杆2向靠近轴孔201的方向运动并插入轴孔201内，使得减速箱5输出轴、转动轴20和连接杆2连为一个整体，然后电机1通电，带动减速箱5旋转，通过减速箱5输出轴带动连接杆2转动，进而带动转动轴20转动。
本发明另一个方面的实施例提供一种冰箱，包括：箱体、门体和上述任一实施例所述的开关门装置；门体通过转动轴20与箱体能够转动的连接，其中，转动轴20与门体固定连接，转动轴20上开设有轴孔201；开关门装置的连接杆2设置在门体上。
本发明上述实施例提供的冰箱，开关门装置设置在门体上，通过第二驱动装置带动连接杆2的第二端部22插入轴孔201，第一驱动装置带动连接杆2转动，实现转动轴20的转动，以实现门体的自动开关，当第一驱动装置和第二驱动装置不工作时，弹性件4带动连接杆2向远离轴孔201的方向运动，并使得连接杆2与轴孔201相分离。
优选地，门体的上端固定连接有第一转动轴，第一转动轴上开设有第一轴孔，开关门装置包括第一开关门装置，第一开关门装置的连接杆的第二端部与第一轴孔相适配；和/或门体的下端固定连接有第二转动轴，第二转动轴上开设有第二轴孔，开关门装置包括第二开关门装置，第二开关门装置的连接杆的第二端部与第二轴孔相适配。
上述实施例中，可以在冰箱上设置一个开关门装置，例如第一开关门装置驱动第一转动轴转动，或者，第二开关门装置驱动第二转动轴转动，当然，也可以同时设置第一开关门装置和第二开关门装置，并使得第一开关门装置驱动第一转动轴转动，第二开关门装置驱动第二转动轴转动。
综上所述，本发明实施例提供的开关门装置，第二驱动装置工作时，第二驱动装置带动连接杆2向靠近轴孔201的方向运动，实现连接杆2与转动轴20的连接，此时，第一驱动装置工作，第一驱动装置带动连接杆2转动，从而通过连接杆2带动转动轴20转动，实现门体的打开和闭合；在第二驱动装置停止工作后，在弹性件4的回复力的作用下，连接杆2向远离轴孔201的方向运动，转动轴20不再跟第一驱动装置相连接，手动可以实现冰箱的开关门，从而在冰箱断电或开关门装置异常时，仍可以手动实现开关门。
在本发明的描述中，除非另有明确的规定和限定，术语“多个”是指两个或两个以上；除非另有规定或说明，术语“连接”、“固定”等均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接，或电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
本说明书的描述中，需要理解的是，术语“上”、“下”、“前”、“后”、“左”、“右”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发明和简化描述，而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作，因此，不能理解为对本发明的限制。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本发明的至少一个实施例或示例中。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例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种开关门装置，用于冰箱，所述冰箱的门体通过转动轴与箱体能够转动的连接，其中，所述转动轴与所述门体固定连接，所述转动轴上开设有轴孔，其特征在于，包括：
    连接杆，设置在所述门体上，所述连接杆包括第一端部和与所述轴孔相适配的第二端部；
    第一驱动装置，与所述连接杆相连接，用于驱动所述连接杆转动；
    第二驱动装置，用于驱动所述连接杆向靠近所述轴孔的方向运动，并使所述连接杆的第二端部插入所述轴孔；和
    弹性件，所述连接杆的第二端部插入所述轴孔后，所述弹性件被压缩，以使所述弹性件能够带动所述连接杆向远离所述轴孔的方向运动；
    其中，所述第二驱动装置驱动所述连接杆的第二端部插入所述轴孔后，所述第一驱动装置通过所述连接杆驱动所述转动轴转动，以使所述门体相对于所述箱体转动。
  2. 根据权利要求1所述的开关门装置，其特征在于，
    所述第二驱动装置为电磁铁，所述电磁铁上开设有与所述连接杆的第一端部相适配的第一通孔，所述连接杆的第一端部贯穿所述第一通孔，所述电磁铁通电时，所述电磁铁吸引所述连接杆，使所述连接杆向靠近所述轴孔的方向运动。
  3. 根据权利要求2所述的开关门装置，其特征在于，
    所述弹性件支撑在所述连接杆的第一端部和所述电磁铁上远离所述轴孔的端面之间。
  4. 根据权利要求1至3中任一项所述的开关门装置，其特征在于，
    所述第一驱动装置为电机。
  5. 根据权利要求4所述的开关门装置，其特征在于，还包括：
    减速箱，连接在所述电机与所述连接杆之间，所述减速箱的输出轴上开设有与所述连接杆的第二端部相适配的第二通孔，所述连接杆的第二端部贯穿所述第二通孔。
  6. 根据权利要求5所述的开关门装置，其特征在于，
    所述连接杆的第二端部的横截面呈多边形，所述轴孔和所述第二通孔均为与所述连接杆的第二端部相适配的多边形孔。
  7. 根据权利要求5所述的开关门装置，其特征在于，
    所述轴孔的轴线、所述第二通孔的轴线和所述连接杆的轴线重合。
  8. 根据权利要求1至3中任一项所述的开关门装置，其特征在于，
    所述弹性件为螺旋弹簧或弹片。
  9. 一种冰箱，其特征在于，包括：
    箱体；
    门体，通过转动轴与所述箱体能够转动的连接，其中，所述转动轴与所述门体固定连接，所述转动轴上开设有轴孔；和
    如权利要求1至8中任一项所述的开关门装置，所述开关门装置的连接杆设置在所述门体上。
  10. 根据权利要求9所述的冰箱，其特征在于，
    所述门体的上端固定连接有第一转动轴，所述第一转动轴上开设有第一轴孔，所述开关门装置包括第一开关门装置，所述第一开关门装置的连接杆的第二端部与所述第一轴孔相适配；和/或
    所述门体的下端固定连接有第二转动轴，所述第二转动轴上开设有第二轴孔，所述开关门装置包括第二开关门装置，所述第二开关门装置的连接杆的第二端部与所述第二轴孔相适配。
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