Automatic double door opening device, door opening method and refrigerator

Abstract

The present application relates to a kind of automatic double door opening device, door opening method and refrigerator, comprising: at least two pushers;Power component, for simultaneously driving at least two pushers to perform door opening action;Switching mechanism, for forming effective connection with pusher;And, corresponding connection on the energy storage unit of pusher, for temporary storage of potential energy of power component;When switching mechanism forms effective connection with a pusher, energy storage unit temporarily stores the potential energy of power component transmitted to the pusher to idle the door opening action of the pusher;By switching mechanism and one of the pushers form effective connection or disconnection, so that the automatic double door opening device switches to perform single door opening or double door opening action.

Description

[Technical Field]

[0001] This invention relates to the field of refrigerators, specifically to an automatic double-door opening device; it also specifically relates to an opening method using the automatic double-door opening device and a refrigerator. [Background Technology]

[0002] In the refrigerator industry, with technological advancements and increased automation, more and more refrigerators are focusing on improving their intelligence. Automatic door opening is a common function in intelligent control. Currently, automatic door opening is often achieved using a door opening device. However, the inventors discovered the following problems during use:

[0003] Firstly, for double-door refrigerators, existing door opening mechanisms commonly employ either a single door opener controlling the opening of a single door or a single door opener simultaneously controlling the opening of both doors. However, the current control methods, where a single door opener controls a single door, increase the complexity of the control logic due to the increased use of drive equipment. Furthermore, the method of a single power source simultaneously driving multiple push rods to open both doors is primarily used in French-style refrigerators, where both doors often contain the same storage compartment. However, when the two doors correspond to different storage compartments, users do not necessarily need to open both doors simultaneously; there are scenarios where only one door needs to be opened. Existing double-door mechanisms struggle to meet the needs of single-door opening, resulting in a poor user experience. Therefore, there is an urgent need for a double-door mechanism that allows switching between single-door and double-door opening modes on the refrigerator.

[0004] In view of this, it is necessary to develop an automatic double-door opening device to solve the above problems. [Summary of the Invention]

[0005] To address the shortcomings of existing technologies, the present invention aims to provide an automatic double-door device, comprising:

[0006] At least two thrusters;

[0007] A power component, used to simultaneously drive at least two pushers to perform the door opening action;

[0008] A switching mechanism for effectively connecting with a pushing part; and

[0009] The corresponding energy storage unit connected to the jacking part is used to temporarily store the potential energy of the power components;

[0010] When the switching mechanism is effectively connected to a pushing part, the energy storage unit temporarily stores the potential energy transmitted to the pushing part by the power component to take over the door opening action of the pushing part, thereby realizing the single or double door opening action of the automatic double door opening device.

[0011] Preferably, it also includes a push plate, with a pushing part disposed on the push plate, and a power component drives the push plate to drive the pushing part.

[0012] Preferably, the energy storage unit is connected to a fixed base surface between the jacking part and the push plate. The energy storage unit converts the potential energy of the power component into potential energy by changing the relative position between the jacking part and the push plate.

[0013] Preferably, the switching mechanism restricts the pushing part from performing the door opening action by blocking the pushing part.

[0014] Preferably, the switching mechanism includes a stop, which includes a stop lever and a driver for moving the stop lever.

[0015] Preferably, the stop bar and the pusher are locked together to form a limiting structure.

[0016] Preferably, the stop lever is driven by the driver to move onto the moving path of the pusher.

[0017] On the other hand, the present invention also provides a door opening method using the above-mentioned automatic double door opening device, comprising the following steps: obtaining a door opening command and parsing the door body to be opened in the current door opening command; wherein, the door body includes at least two door bodies; when at least one door body is not opened in the current door opening command, a switching mechanism is configured to form an effective connection with the push part of the door body, so as to take over the door opening action of the push part.

[0018] Preferably, the power component is activated to perform the door opening action only after the switching mechanism has formed an effective connection with the push part of the door.

[0019] On the other hand, the present invention also provides a refrigerator, including the automatic double-door device as described above.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] The present invention provides an automatic double-door device, a door opening method, and a refrigerator. By switching the mechanism to form an effective connection or disconnection with one of the push parts, the push part can be used to open the door in turn, which facilitates the automatic double-door device to achieve single-door opening and increases the application scenarios of the automatic double-door device.

[0022] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail below with reference to the accompanying drawings. [Attached Image Description]

[0023] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0024] Figure 1 This is a first-view perspective three-dimensional structural diagram of the automatic double-door device in a preferred embodiment of the present invention;

[0025] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0026] Figure 3 This is a second-view perspective three-dimensional structural diagram of the automatic double-door device in a preferred embodiment of the present invention;

[0027] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0028] Figure 5 This is a third-view perspective three-dimensional structural diagram of the automatic double-door device in a preferred embodiment of the present invention;

[0029] Figure 6 This is a partial structural schematic diagram of the automatic double door opening device in a preferred embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the push plate, the pushing part, and the elastic unit in a preferred embodiment of the present invention;

[0031] Figure 8 This is a three-dimensional structural diagram of the inner bottom plate of the automatic double door device in a preferred embodiment of the present invention;

[0032] Figure 9 This is a partial cross-sectional view of the positioning block on the base plate in a preferred embodiment of the present invention;

[0033] Figure 10 This is a simplified diagram of the workpiece of the switching mechanism in a preferred embodiment of the present invention;

[0034] Figure 11 This is a simplified diagram of the workpiece of the switching mechanism in the second preferred embodiment of the present invention;

[0035] Figure 12 This is a schematic diagram showing the positional relationship between the switching mechanism and the push plate in the second preferred embodiment of the present invention.

[0036] Explanation of reference numerals in the attached figures:

[0037] 31. Push plate; 311. Slide groove; 312. Opening; 313. Stop block; 315. Rack; 317. Positioning groove; 318. Clearance opening;

[0038] 32. Elastic unit;

[0039] 33. Jacking section;

[0040] 331. First limiting rod; 332. Second limiting block; 333. Top rod; 3331. Limiting component; 334. Boss;

[0041] 34. Reset unit;

[0042] 35. Base plate;

[0043] 351. Push plate mounting position;

[0044] 352. Driver installation location;

[0045] 354. Cable entry hole;

[0046] 355. Cable tray;

[0047] 358. Positioning block; 3581. Hollow section; 3582. Connecting slope;

[0048] 359. Stop; 3591. Stop lever; 3592. Driver;

[0049] 36. Dynamic components;

[0050] 361. Motor; 362. Worm; 363. Worm wheel; 364. First transmission gear; 365. Second transmission gear; 366. Transition gear; 367. Gear with missing tooth.

Detailed Implementation Methods

[0051] The invention will now be described in further detail with reference to the accompanying drawings, which will make the foregoing and other objects, features, aspects, and advantages of the invention more apparent, enabling those skilled in the art to practice it upon referring to the text of the specification. In the drawings, shapes and dimensions are enlarged for clarity, and the same reference numerals are used throughout the figures to indicate the same or similar parts. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are used based on the orientation or positional relationship shown in the drawings. In particular, “height” corresponds to the dimension from top to bottom, “width” corresponds to the dimension from left to right, and “depth” corresponds to the dimension from front to back. These relative terms are for ease of explanation and are not generally intended to require a specific orientation. Terms relating to attachment, connection, etc. (e.g., “connection” and “attachment”) refer to the relationship in which these structures are directly or indirectly fixed or attached to each other by an intermediate structure, and to movable or rigid attachments or relationships, unless otherwise explicitly stated.

[0052] Next, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. It should be understood that terms such as "having," "comprising," and "including" as used herein do not imply the presence or addition of one or more other elements or combinations thereof.

[0053] like Figure 1-4 As shown, the present invention relates to a refrigerator, which includes an automatic double-door opening device, the automatic double-door opening device comprising:

[0054] Push plate 31, on which at least two pushing parts 33 are provided; and

[0055] Power component 36, which is used to drive push plate 31;

[0056] An energy storage unit is provided between the push plate 31 and the push part 33. The number of energy storage units corresponds to the number of push parts 33, so that each push part 33 can independently temporarily store the potential energy of the power component 36.

[0057] A switching mechanism is used to restrict the transmission of the power component 36 to the pusher 33;

[0058] In this system, a single power component 36 drives the push plate 31, which in turn drives the push part 33 to move simultaneously to push the two doors, so that the automatic double-door device pushes at least two doors on the refrigerator. However, in use, the refrigerator can be configured as a French door refrigerator, or it can be configured to have the same appearance as a French door refrigerator, but the internal structure is not a single integrated space, but rather two independent spaces corresponding to two doors. In this application scenario, the existing automatic double-door device has certain limitations in use. The existing automatic double-door device can only push open the two doors at the same time, and it is difficult to achieve the application of one door being pushed open while the other door remains closed, resulting in a poor user experience of the existing automatic double-door device.

[0059] Therefore, in this solution, a switching mechanism is used to switch the posture and can be effectively connected with at least one pushing part 33, so that the energy storage unit acts on the pushing part 33 to limit the power component 36 from being transmitted to the pushing part 33 which is effectively connected to the switching mechanism.

[0060] When the switching mechanism is effectively connected with a pusher 33, the energy storage unit acts on the corresponding pusher 33 to make the pusher 33 disengage from the power component 36, thereby restricting the pusher 33 from opening the door body.

[0061] By switching the mechanism to form an effective connection or disconnection with one of the push parts 33, the automatic double door opening device can switch between performing single door opening or double door opening actions; the effective connection includes, but is not limited to, locking, blocking, clamping and other methods used to block movement, so as to restrict the movement of the push part 33.

[0062] Furthermore, such as Figure 7 As shown, the push part 33 is embedded in the push plate 31 and extends from one side of the push plate 31 to push the door body; the upper surface of the push part 33 is lower than or approximately flush with the upper surface of the push plate 31, so that the push part 33...

[0063] The push plate 31 has a groove 311 for receiving the push part 33. The groove 311 extends to at least one end face of the push plate 31 and forms an opening 312. The push part 33 extends out from the opening 312 on the push plate 31.

[0064] The opening 312 is equipped with a stop block 313. The pushing part 33 includes a first limiting rod 331 and a second limiting block 332. The second limiting block 332 extends outward from the side of the first limiting rod 331 to form an L-shaped structure. The other end of the first limiting rod 331 extends outward with a push rod 333, so that the push rod 333 abuts against the door body. Specifically, the stop block 312 restricts the position of the second limiting block 332, thereby restricting the movement path of the pushing part 33. The other end of the push rod 333 relative to the first limiting rod 331 extends outward to form a boss 334. The boss 334 fits against the door body. By increasing the contact area between the pushing part 33 and the door body, the pressure is reduced to protect the door body. Due to the large suction force, the push rod 333 requires a large pushing force when pushing the door body. When the contact area of ​​the push rod 333 is small, the door body is easily damaged.

[0065] In a preferred embodiment, the switching mechanism includes a stop 359, which is used to block the push part 33 on the double door device; in this preferred embodiment, there are two push parts 33, which are used to push the door of each of the two appliances respectively; wherein, the push rod 333 on the push part 33 is provided with a limiting member 3331 corresponding to the stop 359.

[0066] It should be noted that the switching mechanism is not limited to restricting the movement of the push part 33 by stopping one of the push parts 33 in order to achieve single door opening action.

[0067] Specifically, the stop part 359 includes a stop rod 3591 and a driver 3592 that drives the stop rod 3591. Under the drive of the driver 3592, the stop rod 3591 is connected to the limiting member 3331 on at most one of the push rods 333 to form a limiting structure. The driver 3592 drives the stop rod 3591 to move, so that the stop rod 3591 can move to at least three different positions, thereby connecting the stop rod 3591 to any one of the limiting members 3331 on the two push parts 33 to limit the movement of the push part 33.

[0068] When the double door device is in the process of opening, the stop bar 3591 extends through the blocking push part 33, thereby realizing the switching between single door and double door in the double door device. By setting the stop part 359, the double door device can easily meet the needs of users, and can realize the simultaneous opening of both doors or single door opening, thereby improving the user experience.

[0069] Further, refer to Figure 10 , 11 As shown, the actuator 3592 drives the stop lever 3591 to move to any of the three positions: first posture I, second posture II, or third posture III; specifically:

[0070] When the driver 3592 drives the stop lever 3591 to the first posture I, the stop lever 3591 and the limiting member 3331 on one of the push rods 333 restrict the movement of the push rod 333 and block the corresponding push part 33 from pushing the corresponding door body.

[0071] When the driver 3592 drives the stop lever 3591 to the second posture II, the stop lever 3591 and the limiting member 3331 on the other push rod 333 restrict the movement of the other push rod 333 and block the other push part 33 from pushing the corresponding door body.

[0072] When the driver 3592 drives the stop lever 3591 to the third posture III, the stop lever 3591 disengages from the limiting member 3331 on the two push rods 333, thereby causing the two push parts 33 to push the two door bodies respectively.

[0073] Furthermore, when the actuator 3592 drives the stop lever 3591 to move to the fourth posture, the stop lever 3591 simultaneously engages with the limiting member 3331 on the two push rods 333 to simultaneously restrict the two push parts 33 from pushing the door. Specifically, during use, when judging whether the door is being pushed, it is necessary not only to obtain the user's needs but also to obtain the external environment in which the door is suitable to be opened. For example, if there is an obstacle outside and the obstacle is on the path through which the door is to be opened, it is not suitable to open the door. Combining the user's needs and the external environment, the stop lever 3591 can move to the fourth posture to ensure its safety during use.

[0074] In order to satisfy the requirement that the stop lever 3591 can form a limiting structure with both push rods 333 and a single push rod 333, in a preferred embodiment, the movement of both ends of the stop lever 3591 is independently controlled by two driving elements, thereby facilitating control.

[0075] In a further preferred embodiment of the switching mechanism including the stop part 359, the energy storage unit stores the potential energy of the power component 36 when the relative positions of the push plate 31 and the push part 33 change; the energy storage unit includes an elastic unit 32, a gas spring or a magnet with the same pole.

[0076] Preferably, the energy storage unit is an elastic unit 32. Specifically, the pushing part 33 and the push plate 31 are slidably arranged, and the elastic unit 32 is connected to a fixed base surface of the pushing part 33 and the push plate 31. When the power member 36 drives the push plate 31 to move, the elastic unit 32 absorbs the kinetic energy of the power member 36 through elastic deformation to keep the pushing part 33 in a stationary state.

[0077] At the same time, the power component 36 drives the push plate 31 to move relative to the push part 33, causing the elastic unit 32 to deform and store the pushing force to open the door. By increasing the degree of deformation of the elastic unit 32, the pushing force stored in the elastic unit 32 is matched with the connection force between the refrigerator door and the refrigerator body (specifically, the moment when the pushing force changes from equal to the connection force to greater than the connection force). The door is opened, thus making the pushing force and the connection force self-adaptive. While ensuring that the door is opened, it reduces the instantaneous speed at which the door is opened due to excessive pushing force, resulting in a fast door opening speed.

[0078] However, it should be noted that the switching mechanism is not limited to restricting the movement of the push part 33 by stopping one of the push parts 33 to achieve single door opening action. The above description is only a preferred solution.

[0079] In a preferred embodiment, the power component 36 and the push plate 31 are driven by a gear and rack, and the push plate 31 is provided with a rack 315 on its side; specifically, the automatic double door device also includes a base plate 35, and a reset unit 34 is provided between the base plate 35 and the push plate 31.

[0080] The power component 36 includes a toothed gear 367, which has several teeth arranged circumferentially. The power component 36 drives the toothed gear 367 to rotate, so that the teeth are engaged or disengaged from the rack 315.

[0081] When the toothed part and the rack 315 are in the meshing state, the power member 36 drives the push plate 31 to move, and the stroke of the push plate 31 driven by a single toothed part is less than the elastic limit of the elastic part 32. At this time, the push plate 31 moves and drives the reset unit 34 to elastically deform.

[0082] When the toothed part is disengaged from the rack 315, after the automatic double door opening device has completed the movement of the push plate 31, the elastic unit 32 can still return to its original shape to prevent the elastic unit 32 from failing. At the same time, the reset unit 34 resumes driving the push plate 31 to reset.

[0083] In a preferred embodiment, see details below. Figure 10 The stop part 359 is disposed between the two push parts 33. The driver 3592 drives the stop rod 3591 to move in a reciprocating linear motion between the two push rods 333 to the first posture I, the second posture II or the third posture III.

[0084] Furthermore, the stop bar 3591 and the push bar 333 form a locking structure to restrict the movement of the push bar 333; specifically, a groove is provided on the side wall of the push bar 333 as a limiting member 3331, so that the stop bar 3591 extends into the groove to restrict the push bar 333 from extending out and blocking the door body from being pushed.

[0085] The two ends of the stop rod 3591 extend into the corresponding grooves of the two top rods 333. The two ends of the stop rod 3591 are tapered to facilitate the insertion of the stop rod 3591 into the top rod 333. At the same time, the shape of the groove corresponds to the shape of the end of the stop rod 3591, so that the stop rod 3591 matches the groove, so that the stop rod 3591 and the top rod 333 can stably form a locking structure.

[0086] The specific working steps include: before the automatic double door opening device performs the door opening action, it obtains the door opening command and analyzes the door body to be opened in this door opening command;

[0087] The actuator 3592 drives the stop lever 3591 to move; if the user needs to open both doors, the actuator 3592 drives the stop lever 3591 to move to the third posture III; if the user needs to open one of the doors, the actuator 3592 drives the stop lever 3591 to move into the groove of the opposite push rod 333.

[0088] See details Figure 11 , 12 As shown, in the second preferred embodiment, the stop part 359 is disposed between the two push parts 33, and the driver 3592 drives the stop lever 3591 to rotate to the first posture I, the second posture II or the third posture III.

[0089] Furthermore, a protrusion extends outward from the side wall of the push rod 333 to form a limiting member 3331. The driver 3592 drives the stop rod 3591 to rotate, so that the stop rod 3591 rotates onto the moving path of the protrusion.

[0090] The specific working steps include: before the automatic double door opening device performs the opening action, obtaining the opening command and parsing the door body to be opened in this opening command;

[0091] The actuator 3592 drives the stop lever 3591 to rotate. If the user needs to open both doors, the actuator 3592 drives the stop lever 3591 to move to the third posture III. If the user needs to open one of the doors, the actuator 3592 drives the stop lever 3591 to rotate into the movement path of the protrusion on the opposite push rod 333. When the automatic double door opening device performs the door opening action, the user needs to open the corresponding push part 33 of the door to successfully push the door open. After the opposite push part 33 moves a certain distance, the protrusion on the push part 33 abuts against the stop lever 3591, thus restricting the push part 33 from continuing to push out.

[0092] It should be noted that when the automatic double door opening device performs the opening action, there is a gap between the push rod 333 and the door. The distance of the gap is greater than the distance that the other push part 33 moves. Since the stop rod 3591 moves to the first posture I or the second posture II by rotating, the automatic double door opening device contacts the door after passing through the gap of the push part 33 when performing the opening action. This way, before the automatic double door opening device performs the opening action, the protrusion is away from the rotation path of the stop rod 3591, thereby avoiding interference.

[0093] Furthermore, the stop lever 3591 is bent into a V-shaped structure, and the power output shaft of the driver 3592 is installed at the inflection point of the stop lever 3591, so that both ends of the stop lever 3591 abut against the protrusions on the push rod 333, thereby reducing the rotation angle of the driver 3592.

[0094] refer to Figure 12 As shown, the actuator 3592 drives the stop lever 3591 to rotate within a range of 0-180°. In order to avoid interference between the stop lever 3591 and the protrusion on the push rod 333, which serves as a limiting member 33, the actuator 3592 drives the stop lever 3591 to rotate on the side away from the push plate 31. Specifically, the actuator 3592 is approximately flush with the protrusion or the protrusion is located between the actuator 3592 and the push plate 31, and the rotation path of the stop lever 3591 is on the side away from the push plate 31. When the stop lever 3591 rotates to the designated position, the stop block 3591 contacts the protrusion to restrict the movement of the protrusion.

[0095] In a preferred embodiment, the power component 36 includes a motor 361 and a power transmission assembly disposed on the power output end of the motor 361; specifically, the power transmission assembly includes a plurality of transmission parts and a toothed gear 367, the toothed gear 367 being connected to the transmission parts in a transmission connection.

[0096] The transmission unit includes two gears arranged vertically with different numbers of teeth. The gears of the transmission unit are arranged in any two of the three layers. The gears of the two transmission units that need to mesh are arranged in the same layer, while the gears that do not need to mesh are arranged in two separate layers to form a staggered structure, so as to avoid interference between the gears. At the same time, the staggered arrangement can reduce the floor space of the drive component, thereby reducing the volume of the door opening device.

[0097] The toothed gear 367 has a drive tooth that meshes with the gear in the transmission part. The motor 361 drives the toothed gear 367. The push plate 31 has a rack 315 that meshes with the toothed gear 367. The motor 361 drives the toothed gear 367 to rotate. The rack and the toothed gear 367 are in a meshing or disengaging state, so that the push plate 31 moves intermittently. This allows the drive assembly to automatically drive the push plate 31 so that the push part 33 pushes the door body.

[0098] In a preferred embodiment, such as Figure 6 As shown, the motor 361 and the transmission unit are connected by a worm gear transmission. A worm 362 is installed on the power output end of the motor 361. The worm wheel 363 in the guide part meshes with the worm 362. Through the transmission between the worm wheel 363 and the worm 362, the output direction of the motor 361 is changed, so as to reduce the height of the power component 36.

[0099] The transmission unit includes a first transmission unit 364 and a second transmission unit 365. A first output gear is provided on the worm gear 363. The first output gear meshes with the first transmission unit 364. The worm gear 363 and the first output gear are integrally combined to form a power introduction unit.

[0100] Furthermore, the first transmission unit 364 includes a first transmission gear and a second output gear that mesh with the first output gear. The first transmission gear and the second output gear are integrally formed, so that the first transmission gear and the second output gear in the first transmission unit 364 rotate together.

[0101] Furthermore, the second transmission unit 365 includes a second transmission gear, which is meshed with a second output gear.

[0102] Specifically, the first output gear and the first transmission gear are located in the third layer; the worm gear is located in the second layer; and the second transmission gear and the second output gear are located in the first layer.

[0103] The transmission unit also includes a transition gear 366, and the second transmission unit 365 also includes a third output gear disposed on the second transmission gear, and the drive gear is connected to the third output gear through the transition gear 366.

[0104] Transition gear 366 includes a fourth output gear and a third transmission gear arranged vertically, with the fourth output gear and the third transmission gear being integrated into one piece;

[0105] The third transmission gear meshes with the third output gear, and the fourth output gear meshes with the drive gear. Through the meshing of gears in the transmission unit, and the different number of teeth between the meshing gears, the rotational speed output by the power source 361 is greater than the rotational speed of the toothed part, thereby increasing the torque.

[0106] The third output gear and the third transmission gear are located in the third layer; the fourth output gear and the drive gear are located in the second layer; and the tooth profile is located in the first layer.

[0107] A connecting part is provided between the two gears of the first transmission part 364 and the second transmission part 365. This connecting part is located within the second layer.

[0108] The gears on the first transmission part 364 and the second transmission part 365 are located in the first and third layers, respectively. A connecting block is provided between the two gears, and the two gears are integrated to form the first transmission part 364 and the second transmission part 365 through the connecting block.

[0109] The number of toothed portions is at least two, and the two toothed portions are symmetrically arranged on the axis of the toothed gear 367, so that the two toothed portions alternately mesh with the rack 315, so as to intermittently drive the push plate 31 to push the push portion 33 open the door body.

[0110] In a preferred embodiment, a rack 315 is provided near the power component 36, and the power component 36 has a plurality of meshing gears inside. The rack 315, the guide part and the gears are respectively arranged in any one of the three layers in a three-layer structure.

[0111] The toothed gear 367 and rack 315 in the power component 36 drive the power component 36 from one side of the push plate 31, thereby reducing the overall height of the automatic door opening device, improving the overall aesthetics of the home appliance, and enhancing the user experience.

[0112] In a preferred embodiment, reference Figure 5 , 8As shown in Figure 9, a push plate mounting position 351 and a drive mounting position 352 are provided on the upper surface of the base plate 35. The push plate mounting position 351 and the drive mounting position 352 are respectively used to receive the push plate 31 and the power component 36. A clearance groove 317 is provided on the push plate 31, and a positioning block 358 is provided on the base plate 35. Specifically, the positioning block 358 is located in the push plate mounting position 351. When the toothed part and the rack 315 are in the meshing state, the push plate 31 moves to the clearance groove 317 and engages with the positioning block 358. When the toothed part 3672 is in the disengaged state from the rack 315, the push plate 31 resets so that the clearance groove 317 disengages from the positioning block 358. Through the clearance groove 317 and the positioning block 358, the push plate 31 is engaged with the positioning block 358, thereby making the push rod 333 accurately push the fixed position of the door body.

[0113] Furthermore, the positioning groove 317 is disposed between the two pushing parts 33 corresponding to the push plate 31; the positioning block 358 is a hollow shell, and a hollow part 3581 is formed inside the positioning block 358, and the stop part 359 is housed in the hollow part 3581.

[0114] Specifically, a connecting inclined surface 3582 is machined on the side of the positioning block 358, which extends from the top surface of the positioning block 358 to the connection between the positioning block 358 and the base surface of the base plate 35, so that the connection between the positioning block 358 and the base surface of the base plate 35 is more stable and can have excellent mechanical properties.

[0115] Furthermore, a clearance groove 318 is provided on the same side of the push plate 31 where the positioning groove 317 is provided. When the push plate 31 moves toward the positioning block 358 under the drive of the power component 36, part of the stop part 359 extends into the clearance groove 318.

[0116] A wire groove 355 is provided on the lower surface of the base plate 35 opposite to the receiving position. It is located below the corresponding push plate mounting position 351. A wire hole 354 is provided on the base plate 35, which passes through the upper and lower surfaces. The wire groove 355 is connected through the wire hole 354. At the same time, the wire hole 354 is located close to the drive mounting position 352, so that the power line of the power component passes through the wire hole 354 and is run in the wire groove 355. This facilitates the layout of the power line of the power component and avoids interference with the components inside the double door device, thus facilitating installation.

[0117] It should be understood that the above embodiments are merely illustrative examples of this application and are not intended to limit the scope of this application.

[0118] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

Claims

1. An automatic double-door opening device, characterized in that, include: Push plate; At least two pushing parts are disposed on the push plate; A power component for driving the push plate to simultaneously drive at least two of the push parts to perform the door opening action; A switching mechanism includes a stop portion, the stop portion including a stop lever and a driver for moving the stop lever, the switching mechanism being used to form an effective connection with the push portion and to block the push portion by the stop lever to limit the push portion from performing the door opening action; as well as An energy storage unit is disposed between the pusher and a fixed base surface of the pusher plate. The energy storage unit is used to temporarily store the potential energy of the power component by changing the relative position between the pusher and the pusher plate when the power component drives the pusher plate. When the switching mechanism is effectively connected to a pushing part, the energy storage unit temporarily stores the potential energy transmitted to the pushing part by the power component so as to take over the opening action of the pushing part, thereby realizing the single or double opening action of the automatic double door device.

2. The automatic double-door device as described in claim 1, characterized in that, The stop bar and the pusher are locked together to form a limiting structure.

3. The automatic double-door device as described in claim 1, characterized in that, Driven by the driver, the stop lever moves onto the moving path of the pusher.

4. A door opening method using the automatic double door opening device as described in claim 1, comprising the following steps: Obtain the door opening command and parse the door to be opened in this door opening command; the door to be opened must include at least two door bodies; If at least one door fails to open during this door opening command, the switching mechanism is configured to form an effective connection with the push part of that door, thereby waiving the door opening action of the push part.

5. The door opening method as described in claim 4, characterized in that, Once the switching mechanism is effectively connected to the push part of the door, the power component is activated to perform the door opening action.

6. A refrigerator, characterized in that, Includes the automatic double door device as described in any one of claims 1-3.

Images