Door assembly and refrigerator

Abstract

The application discloses a door assembly and a refrigerator with the door assembly, wherein the door assembly comprises a shell, a panel, a driving device and a clutch mechanism, the shell is provided with a handle slot, the handle slot has an opening; the panel is located at the opening; the driving device is used for driving the panel to move in and out along the axial direction of the opening; the clutch mechanism is used for controlling the connection or disconnection of the driving device and the panel; wherein the panel has a first state and a second state, in the first state, the outer surface of the panel is flush with or smoothly transitions to the outer surface of the shell; in the second state, part of the panel protrudes from the opening, or the panel is retracted into the shell. By setting the clutch mechanism to control the connection or disconnection of the driving device and the panel, the driving device and the panel are disconnected when manually operated, and the driving device is effectively protected from damage. Moreover, since there is no resistance of the driving device, the force required to push the panel is smaller, so that the panel is more easily pushed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a door assembly and a refrigerator. BACKGROUND

[0002] In order to facilitate the opening of the refrigerator, a handle is generally arranged on the door body. The handle is generally a visible handle arranged on the door body, and most of them are fixed and non-moving structures. The poor matching structure of the handle and the door body can easily affect the appearance of the entire refrigerator. Moreover, the handle is installed on the surface of the door body, which occupies a part of the space, and dust and other debris can easily fall on the handle, making the handle dirty and needing to be cleaned frequently. In order to solve the above problems, in the related art, a hidden handle design is adopted. Specifically, a groove is arranged on the door body, and a handle panel is arranged in the groove, and the handle panel is driven to realize telescopic movement by a motor. However, if manual operation is realized, for example, the handle panel is pushed by hand in the case of power failure, the motor will be driven to rotate synchronously. In this case, the pushing resistance is large, and in the case where the pushing force and the pushing speed are uncertain, the motor may be damaged. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a door assembly capable of protecting the motor during manual operation.

[0004] The present application also proposes a refrigerator having the above-mentioned door assembly.

[0005] According to the door assembly of the first aspect of the present application, the door assembly comprises a shell, a panel, a driving device and a clutch mechanism. The shell is provided with a handle slot, and the handle slot has an opening. The panel is located at the opening. The driving device is used to drive the panel to move telescopically along the axis of the opening. The clutch mechanism is used to control the connection or disconnection of the driving device and the panel. The panel has a first state and a second state. In the first state, the outer surface of the panel is flush with or smoothly transitions to the outer surface of the shell. In the second state, part of the panel protrudes from the opening, or the panel is retracted into the shell.

[0006] According to the door assembly of the present application, the driving device and the panel are connected or disconnected by the clutch mechanism. When manually operated, the driving device and the panel are disconnected, effectively protecting the driving device from damage. Moreover, without the resistance of the driving device, the force required to push the panel is smaller, making it easier to push the panel.

[0007] According to some embodiments of the present application, the door assembly further comprises a fixed support connected to the inner side of the handle slot, and a lever rotatably connected to the fixed support at one end by a rotating shaft and connected to the panel at the other end, the driving device drives the rotating shaft to rotate, and the clutch mechanism is arranged between the driving device and the rotating shaft.

[0008] According to some embodiments of the present application, the clutch mechanism comprises a convex part arranged on the rotating shaft and a concave part connected to the driving device, the concave part accommodates the convex part, and there is a rotating gap between the concave part and the convex part.

[0009] According to some embodiments of the present application, the driving device comprises a motor, the output shaft of the motor is connected to the rotating shaft through a rotating shaft connecting sleeve, and the concave part is arranged on the rotating shaft connecting sleeve.

[0010] According to some embodiments of the present application, the driving device comprises a motor, the output shaft of the motor is connected with a driving gear, the rotating shaft is connected with a driven gear, the driving gear is engaged with the driven gear, and the concave part is arranged on the driven gear.

[0011] According to some embodiments of the present application, the number of levers is two, and the two levers are connected to the fixed support through the rotating shaft and connected to the panel at both ends.

[0012] According to some embodiments of the present application, the panel comprises a holding part, two first connecting parts and two second connecting parts, the holding part is arranged along the axis direction parallel to the rotating shaft, the two first connecting parts are respectively connected to the two ends of the holding part and arranged in the direction away from the back of the holding part, and the two ends of the second connecting part are respectively connected to the first connecting part and the lever and arranged along the axis direction parallel to the rotating shaft; in the first state, the outer surface of the holding part is flush with or smoothly transitions to the outer surface of the shell; in the second state, the holding part and at least part of the first connecting part protrude out of the opening.

[0013] According to some embodiments of the present application, the panel comprises a baffle part and two third connecting parts, the baffle part is arranged along the axis direction parallel to the rotating shaft, the two third connecting parts are connected to one side of the baffle part and arranged in the direction away from the back of the baffle part, and the levers are connected to the third connecting parts; in the first state, the outer surface of the baffle part is flush with or smoothly transitions to the outer surface of the shell; in the second state, the baffle part is retracted into the shell.

[0014] According to some embodiments of the present application, the door assembly further comprises a guiding assembly connected to the panel to guide the axial telescopic movement of the panel along the opening.

[0015] According to some embodiments of the present application, the guiding assembly comprises a sliding shaft, both ends of which are fixedly connected to the fixed support, and the panel is slidingly connected to the sliding shaft, and the lever is rotatably connected to the panel.

[0016] According to some embodiments of the present application, one end of the lever is provided with a guiding boss, and the panel is provided with a guiding waist hole or a guiding waist groove matched with the guiding boss.

[0017] According to some embodiments of the present application, the panel is provided with a guiding boss, and one end of the lever is provided with a guiding waist hole or a guiding waist groove matched with the guiding boss.

[0018] The refrigerator according to the second aspect of the embodiments of the present application comprises the door assembly according to the first aspect of the embodiments of the present application.

[0019] The refrigerator according to the embodiments of the present application has at least the following beneficial effects: by adopting the door assembly according to the first aspect of the embodiments of the present application, the clutch mechanism controls the connection or disconnection of the driving device and the panel, and when manually operated, the driving device and the panel are disconnected, effectively protecting the driving device from being damaged. Moreover, due to the absence of the resistance of the driving device, the force required to push the panel is smaller, so that the panel is more easily pushed.

[0020] Additional aspects and advantages of the present application will be given, partially in the following description, partially become obvious from the following description, or be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below in conjunction with the drawings and embodiments, in which:

[0022] Figure 1 A schematic view of one embodiment of the refrigerator according to the embodiments of the present application;

[0023] Figure 2 A schematic view of another embodiment of the refrigerator according to the embodiments of the present application;

[0024] Figure 3 A schematic view of another embodiment of the refrigerator according to the embodiments of the present application;

[0025] Figure 4 A schematic view of another embodiment of the refrigerator according to the embodiments of the present application; Figure 1 A front view of one embodiment of the door assembly (omitting the door body) is shown;

[0026] Figure 5 A front view of another embodiment of the door assembly (omitting the door body) is shown; Figure 4perspective view of the door assembly;

[0027] Figure 6 for Figure 4 schematic view of the door assembly in an initial state;

[0028] Figure 7 for Figure 4 schematic view of the door assembly in an intermediate state;

[0029] Figure 8 for Figure 4 schematic view of the door assembly in a final state;

[0030] Figure 9 for Figure 1 schematic view of another embodiment of the door assembly (without door body);

[0031] Figure 10 for Figure 1 schematic view of another embodiment of the door assembly (without door body);

[0032] Figure 11 for Figure 5 schematic view of the connection of a panel and a lever in one embodiment;

[0033] Figure 12 for Figure 5 schematic view of the connection of a panel and a lever in another embodiment;

[0034] Figure 13 for Figure 1 schematic view of another embodiment of the door assembly (without door body);

[0035] Figure 14 for Figure 13 exploded view of the door assembly;

[0036] Figure 15 for Figure 13 schematic view of another state of the door assembly;

[0037] Figure 16 for Figure 13 schematic view of the door assembly in an initial state;

[0038] Figure 17 for Figure 13 schematic view of the door assembly in an intermediate state;

[0039] Figure 18 for Figure 16 cross-sectional view of the door assembly;

[0040] Figure 19 for Figure 17 cross-sectional view of the door assembly;

[0041] Figure 20 for Figure 1 A schematic diagram of another embodiment of the door assembly is shown (door body omitted);

[0042] Figure 21 for Figure 17 A schematic diagram showing the addition of a detection component to the door assembly is shown;

[0043] Figure 22 for Figure 1 A schematic diagram of another embodiment of the door assembly is shown (door body omitted);

[0044] Figure 23 for Figure 22 The diagram shown illustrates the door assembly in its initial state.

[0045] Figure 24 for Figure 22 The diagram shown illustrates a compression spring in a critical state.

[0046] Figure 25 for Figure 22 The diagram shown illustrates the door assembly in an intermediate state.

[0047] Figure 26 for Figure 22 The diagram shown illustrates the door assembly in its completed state.

[0048] Figure 27 for Figure 22 A schematic diagram of another embodiment of the door assembly is shown;

[0049] Figure 28 This is a schematic diagram of a door assembly in its initial state according to another embodiment;

[0050] Figure 29 for Figure 28 The diagram shown illustrates a gate assembly in a critical state.

[0051] Figure 30 for Figure 28 The diagram shown illustrates the door assembly in its completed state.

[0052] Figure 31 This is a schematic diagram of a door assembly in its initial state according to another embodiment;

[0053] Figure 32 for Figure 31 The diagram shown illustrates a gate assembly in a critical state.

[0054] Figure 33 for Figure 31 The diagram shown illustrates the door assembly in an intermediate state.

[0055] Figure 34 for Figure 31 The diagram shown illustrates the door assembly in its completed state.

[0056] Figure 35 for Figure 1 A schematic diagram of another embodiment of the door assembly is shown (door body omitted);

[0057] Figure 36 for Figure 35 A schematic diagram of the clutch mechanism is shown;

[0058] Figure 37 for Figure 35 The diagram shown illustrates the door assembly in its initial state.

[0059] Figure 38 for Figure 35 The diagram shown illustrates the door assembly in an intermediate state.

[0060] Figure 39 for Figure 35 The diagram shown illustrates the completed state of the door assembly in a manually pushed scenario;

[0061] Figure 40 for Figure 35 The diagram shown illustrates the door assembly in its completed state under electric control.

[0062] Figure 41 for Figure 1 A schematic diagram of the door assembly in its initial state according to another embodiment is shown;

[0063] Figure 42 for Figure 41 The diagram shown illustrates the door assembly in its completed state.

[0064] Figure 43 for Figure 1 A schematic diagram of another embodiment of the door assembly is shown (door body omitted);

[0065] Figure 44 for Figure 43 A schematic diagram of the door assembly from another angle is shown;

[0066] Figure 45 for Figure 43 The schematic diagram shown omits the fixing bracket from the door assembly;

[0067] Figure 46 for Figure 44 A partial cross-sectional view of one embodiment of the opener / closer is shown;

[0068] Figure 47 for Figure 43 A schematic diagram showing a door assembly (with a door body) in its initial state;

[0069] Figure 48 is shown in a cross-sectional view taken along line A-A in the Figure 46 state; Figure 47 is shown in a cross-sectional view taken along line B-B in the

[0070] Figure 49 is shown in a cross-sectional view taken along line A-A in the Figure 46 state; Figure 47

[0071] Figure 50 is shown in a cross-sectional view taken along line B-B in the Figure 43 state;

[0072] Figure 51 is shown in a cross-sectional view taken along line A-A in the Figure 46 state; Figure 50

[0073] Figure 52 is shown in a cross-sectional view taken along line B-B in the Figure 46 state; Figure 50

[0074] Figure 53 is shown in a cross-sectional view taken along line A-A in the Figure 43 state;

[0075] Figure 54 is shown in a cross-sectional view taken along line B-B in the Figure 46 state; Figure 53

[0076] Figure 55 is shown in a cross-sectional view taken along line A-A in the Figure 46 state; Figure 53

[0077] Figure 56 is shown in a cross-sectional view taken along line B-B in the

[0078] Figure 57 is shown in a cross-sectional view taken along line A-A in the

[0079] Figure 58 is shown in a cross-sectional view taken along line B-B in the

[0080] Figure 59 is shown in a cross-sectional view taken along line A-A in the

[0081] Figure 60 is shown in a cross-sectional view taken along line B-B in the

[0082] Figure 61 ​​​​​Flow chart of another embodiment of the control method of the door assembly of the embodiment of the present application;

[0083] Figure 62 Flow chart of another embodiment of the control method of the door assembly of the embodiment of the present application;

[0084] Figure 63 Flow chart of another embodiment of the control method of the door assembly of the embodiment of the present application;

[0085] Figure 64 Flow chart of another embodiment of the control method of the door assembly of the embodiment of the present application.

[0086] Reference signs:

[0087] 101, door body; 102, panel;

[0088] 301, drawer;

[0089] 401, fixed support; 402, push rod;

[0090] 501, sliding shaft; 502, baffle part; 503, third connecting part;

[0091] 601, limiting block;

[0092] 901, motor; 902, driving gear; 903, rotating shaft; 904, driven gear;

[0093] 1001, rotating shaft connecting sleeve;

[0094] 1101, guide boss; 1102, guide waist-shaped hole;

[0095] 1301, lever; 1302, guide waist-shaped slot;

[0096] 1401, sliding block; 1402, pin shaft; 1403, return spring;

[0097] 2001, magnet; 2002, Hall sensor;

[0098] 2101, first compression spring; 2102, first mounting part; 2103, second mounting part;

[0099] 2201, indicating line; 2202, center line; 2203, rotating center;

[0100] 2601, first tension spring;

[0101] 3001, first torsion spring;

[0102] 3401, clutch mechanism;

[0103] 3501, protrusion; 3502, recess; 3503, rotation gap;

[0104] 4001, handle slot; 4002, opening; 4003, buckle slot part; 4004, movable slot part; 4005, light source; 4201, holding part; 4202, first connecting part;

[0105] 4301, back cover; 4302, shutter;

[0106] 4401, second connecting part;

[0107] 4501, push rod; 4502, housing; 4503, sliding piece; 4504, second compression spring; 4505, guide sliding groove;

[0108] 4701, rotating part; 4702, limiting slot; 4703, limiting part;

[0109] 4801, sliding part; 4802, first stop position; 4803, second stop position;

[0110] 5401, guide inclined surface;

[0111] 5501, second extension spring;

[0112] 5601, second torsion spring. DETAILED DESCRIPTION

[0113] Embodiments of the present application are described in detail below with reference to the attached drawings, which show by way of example, embodiments in which like numerals indicate like elements or elements having the same or similar function. The embodiments described below are examples only, and are not to be construed as limiting the present application.

[0114] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0115] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more. Greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0116] In the description of the present application, the words such as arrangement, installation, connection and the like should be understood in a broad sense, and the specific meanings of the words in the present application can be determined by the person skilled in the art in combination with the specific content of the technical solution, unless otherwise explicitly limited.

[0117] With reference to Figure 1 It can be understood that the refrigerator of the embodiment of the present application can be a single-door refrigerator, which comprises a door body 101, the door body 101 comprising an outer shell (not shown in the figure) and an inner container (not shown in the figure), and a handle slot 4001 (with reference to Figure 41 ) is arranged on the outer side of the outer shell, i.e. the side of the outer shell facing the user is provided with the handle slot 4001, the handle slot 4001 has an opening 4002, and a panel 102 is arranged at the opening 4002, the panel 102 can move relative to the opening 4002, so as to hide or open the opening 4002. The door body 101 and the panel 102 form part of a door assembly, and the cooperation of the panel 102 and the handle slot 4001 forms a handle structure, and the switching between the use state and the hidden state of the handle structure can be realized.

[0118] With reference to Figure 2 It can be understood that the refrigerator of the embodiment of the present application can also be a double-door refrigerator, which comprises two door bodies 101, and the outer shell of each door body 101 is provided with a handle slot 4001, and the opening 4002 of the handle slot 4001 is provided with a panel 102, so as to form a handle structure on each door, and the switching between the use state and the hidden state of the handle structure can be realized.

[0119] It should be noted that in the double-door refrigerator, the door assembly structure of the embodiment of the present application can be used only in one of the doors, and other types of handle structures can be used in the other door, which is not limited herein.

[0120] With reference to Figure 3 It can be understood that the refrigerator of the embodiment of the present application can also be a multi-door refrigerator, i.e. having a door body 101 and a drawer 301, and opening the door body 101 or the drawer 301 can realize the function of opening the door, and the outer shell of the door body 101 and the drawer 301 is provided with a handle slot 4001, and the opening 4002 of the handle slot 4001 is provided with a panel 102, so as to form a handle structure on the door body 101 and the drawer 301, and the switching between the use state and the hidden state of the handle structure can be realized.

[0121] It should be noted that the door assembly structure of the embodiment of the present application can be used only in the drawer 301, and other types of handle structures can be used in the door body 101, which is not limited herein.

[0122] With reference to Figure 4 and Figure 5It is understood that the door assembly in this embodiment of the invention also includes a fixed bracket 401 and a lever 402. The fixed bracket 401 is connected to the inner side of the handle groove 4001, and the panel 102 is connected to the fixed bracket 401 via the lever 402. Specifically, one end of the lever 402 is rotatably connected to the fixed bracket 401, and the panel 102 is connected to the other end of the lever 402. This design allows the panel 102 to swing around the hinge point between the lever 402 and the fixed bracket 401, thereby enabling the panel 102 to extend and retract along the axial direction of the opening 4002. In other words, the panel 102 has two states, defined as a first state and a second state. In the first state, the outer surface of the panel 102 is flush with or smoothly transitions to the outer surface of the outer shell. At this time, the panel 102 is in a hidden state, and the outer surface of the panel 102 and the outer surface of the outer shell appear to be a single unit without obvious protrusions or depressions, making the refrigerator look neat and aesthetically pleasing. In the second state, panel 102 can retract into handle groove 4001, exposing handle groove 4001, allowing the user to reach into handle groove 4001 to pull door 101 or drawer 301 to open the refrigerator. In the second state, panel 102 can also extend beyond handle groove 4001, allowing the user to grip the panel 102 protruding from opening 4002 and pull door 101 or drawer 301 to open the refrigerator. Using lever 402 to operate the panel utilizes the space along the length of the refrigerator door, reducing the space occupied in the thickness direction and improving space utilization.

[0123] It can be understood that the axial direction of opening 4002 refers to the direction perpendicular to the outer shell plane where opening 4002 is located, including directions approximately perpendicular to the outer shell plane where opening 4002 is located. Figure 6 The front-to-back direction is shown. In other words, the movement of panel 102 along the axial direction of opening 4002 is a translational movement of the whole, rather than a flipping movement.

[0124] It should be noted that in one embodiment, in the first state, the panel 102 is at the lowest point of natural swing, i.e. the panel 102 is directly below the hinge point of the fixed support 401 and the lever 402 is in a natural downward state. Correspondingly, in the second state, the panel 102 is swung upward. In this way, the panel 102 can automatically return to the hidden state after being moved by the user. In another embodiment, in the second state, the panel 102 is at the lowest point of natural swing, and correspondingly, in the first state, the panel 102 is swung upward. At this time, a retaining structure can be arranged at the edge of the opening 4002, so that the panel 102 can be kept in the hidden state. For example, a magnetic attraction structure is arranged to attract the panel 102 to the opening 4002. For another example, a damping structure is arranged at the hinge point of the lever 402 and the fixed support 401, so that when the panel 102 is rotated to the opening 4002, the damping force is received, and the panel 102 is not easy to naturally detach from the opening 4002.

[0125] With reference to Figure 5 and Figure 6 It can be understood that the door assembly of the embodiment of the present application further comprises a sliding shaft 501, both ends of the sliding shaft 501 are fixedly connected to the fixed support 401, the panel 102 is slidingly connected to the sliding shaft 501, and the lever 402 is rotationally connected to the panel 102. By arranging the sliding shaft 501, the panel 102 moves along a predetermined track, the movement is more stable, the switching between the first state and the second state is more smooth, and the panel 102 can be conveniently stopped at any position on the sliding shaft 501.

[0126] It should be noted that the sliding shaft 501 can also be replaced by a guide assembly such as a sliding rail, a sliding groove, etc. The guide assembly is connected to the panel 102 to guide the panel 102 to move along the axial extension and retraction of the opening 4002.

[0127] With reference to Figure 5 and Figure 6It can be understood that the number of the push rods 402 is two, the two push rods 402 are connected to the fixed support 401 through the rotating shaft 903, and are connected to two ends of the panel 102, so that the panel 102 is more balanced in force, and is not easy to tilt in the process of swinging forward and backward. In addition, the panel 102 comprises a baffle part 502 and two third connecting parts 503, the baffle part 502 is arranged along the axis direction parallel to the rotating shaft 903, the baffle part 502 is used for closing the opening 4002, the two third connecting parts 503 are connected to one side of the baffle part 502 and are arranged along the axis direction perpendicular to the rotating shaft 903, one push rod 402 corresponds to one third connecting part 503, that is, the push rod 402 is connected to the baffle part 502 through the third connecting part 503. Thus, in the first state, the push rod 402 drives the baffle part 502 to move to the opening 4002 through the third connecting part 503, so that the outer surface of the baffle part 502 is flush with or smoothly transitions to the outer surface of the shell; in the second state, the push rod 402 drives the baffle part 502 to move into the handle slot 4001 through the third connecting part 503, so that the baffle part 502 is retracted into the shell.

[0128] It should be noted that the third connecting part 503 can also have an inclination angle with the axis of the rotating shaft 903, that is, not perpendicular, as long as it is arranged in the direction away from the back of the baffle part 502, that is, in the rear direction.

[0129] It can be understood that the third connecting part 503 is staggered with the baffle part 502 in the front and rear directions, not located in the same plane, so that the third connecting part 503 can be located in the handle slot 4001, reducing the possibility of interference between the panel 102 and the fixed support 401 in the movement process.

[0130] Referring to Figures 6 to 8 It can be understood that in the process of converting the panel 102 from the hidden state to the use state, the panel 102 undergoes three state change processes, that is, the initial state, the intermediate state and the completed state. The fixed support 401 is provided with two limiting blocks 601, which are located at two ends of the sliding shaft 501, the limiting blocks 601 can limit the swinging of the push rod 402, and limit the initial state and the completed state of the panel 102.

[0131] Referring to Figure 6 It can be understood that the panel 102 is in the initial state, that is, in the first state, the user is located in front of the panel 102.

[0132] Referring to Figure 7 It can be understood that the panel 102 is in the intermediate state, the user pushes the panel 102 to make the panel 102 move towards the rear, so that the shell begins to reveal the handle slot 4001.

[0133] Referring to Figure 8It can be understood that the panel 102 is in the completed state, the panel 102 moves to the limit position at the rear, and the pull handle groove 4001 is completely exposed, at which time the user can reach into the pull handle groove 4001 to pull the door body 101 or the drawer 301 to open the refrigerator.

[0134] It should be noted that the second state described above can refer to the intermediate state and the completed state.

[0135] With reference to Figure 9 In one embodiment, the door assembly of the embodiment of the present application further comprises a motor 901, the motor 901 is fixed on the fixed base frame, and the motor 901 can be one or more. A driving gear 902 is fixedly connected to the output shaft of the motor 901, the push rod 402 is connected to the fixed support 401 through a rotating shaft 903, a driven gear 904 is connected to the rotating shaft 903, and the driving gear 902 and the driven gear 904 are meshed with each other. One end of the push rod 402 is fixed to the rotating shaft 903, the push rod 402 has no relative movement with the rotating shaft 903, and the rotating shaft 903 is rotatably connected to the fixed support 401, so that the push rod 402 swings back and forth around the axis of the rotating shaft 903 together with the rotating shaft 903. When the motor 901 rotates, the panel 102 swings back and forth, that is, moves along the axial direction of the opening 4002, through the transmission of the driving gear 902, the driven gear 904, the rotating shaft 903 and the push rod 402.

[0136] With reference to Figure 10 In another embodiment, the door assembly of the embodiment of the present application further comprises a motor 901, the motor 901 is fixed on the fixed base frame, and the motor 901 can be one or more. The push rod 402 is connected to the fixed support 401 through a rotating shaft 903, and the output shaft of the motor 901 is connected to the rotating shaft 903 through a rotating shaft connecting sleeve 1001 to realize rotary transmission. One end of the push rod 402 is fixed to the rotating shaft 903, the push rod 402 has no relative movement with the rotating shaft 903, and the rotating shaft 903 is rotatably connected to the fixed support 401, so that the push rod 402 swings back and forth around the axis of the rotating shaft 903 together with the rotating shaft 903. When the motor 901 rotates, the panel 102 swings back and forth, that is, moves along the axial direction of the opening 4002, through the transmission of the rotating shaft connecting sleeve 1001, the rotating shaft 903 and the push rod 402.

[0137] By referring to Figure 9 and Figure 10In this way, the driving device is added, the driving lever 402 is driven to rotate by the driving device, and the door body 101 is opened, and the operation is convenient. In addition, the sensor can also be used to realize man-machine interaction, improve the science and technology of the product, and solve the demand for the young, intelligent, scientific and technological appearance of the refrigerator and the beautiful door handle. For example, the hand does not need to touch the panel 102, when the person approaches the door body 101, the sensor senses the target signal, controls the motor 901 to rotate, so that the panel 102 is in the completion state, and the handle slot 4001 is exposed.

[0138] It should be noted that in addition to Figure 9 and Figure 10 , other driving devices can also be used to drive the driving lever 402 to rotate.

[0139] Referring to Figure 11 , it can be understood that one end of the driving lever 402 is provided with a guide boss 1101, and the panel 102 is provided with a guide waist hole 1102. The guide waist hole 1102 is arranged along the up-down direction, and the guide waist hole 1102 or the guide waist groove 1302 cooperates with the guide boss 1101, so that the guide boss 1101 can move along the up-down direction relative to the guide waist hole 1102 during the front-back swinging of the panel 102. In particular, in cooperation with the sliding shaft 501, the panel 102 can be better kept moving along the horizontal direction, rather than moving along each other, so that the panel 102 slides more smoothly, and the space required by the panel 102 in the up-down direction is reduced, that is, the height of the handle slot 4001 in the up-down direction is reduced, so that the structure is more compact.

[0140] Referring to Figure 12 , it can be understood that the panel 102 can also be provided with a guide boss 1101, and one end of the driving lever 402 is provided with a guide waist hole 1102 cooperating with the guide boss 1101. That is, Figure 12 , the positions of the guide boss 1101 and the guide waist hole 1102 are interchanged compared with Figure 11 .

[0141] Referring to Figures 13 to 15 , it can be understood that the door assembly of the embodiment of the application can also be provided with an outer shell (not shown in the figure), a panel 102, a sliding shaft 501 and a lever 1301, wherein the outer shell is provided with a handle slot 4001, the handle slot 4001 has an opening 4002, the panel 102 is arranged at the opening 4002, and the panel 102 is guided by the sliding shaft 501 to move along the axial direction of the opening 4002. One end of the lever 1301 is connected to the panel 102, and the other end of the lever 1301 is used to abut against the outer shell to provide a reaction force to push the panel 102 to move.

[0142] Referring to Figure 16It can be understood that the panel 102 is in the initial state, the side of the lever 1301 is close to the shell, that is, close to the inner wall of the handle groove 4001, the user pushes the panel 102 from the front of the panel 102, and due to the position of the user's force is far away from the position of the sliding shaft 501, if the panel 102 is stuck and cannot smoothly move along the axial direction of the sliding shaft 501, the end of the panel 102 close to the sliding shaft 501 has a tendency to stay in the original position, and the end of the panel 102 away from the sliding shaft 501 has a tendency to move towards the back of the panel 102, causing the panel 102 to have an inclination tendency, which is specifically shown in Figure 17 The state shown in Figure 17 In the state shown, one end of the lever 1301 abuts against the shell, that is, abuts against the inner wall of the handle groove 4001, and the end of the lever 1301 abutting against the shell is initially kept stationary, providing a force to push the panel 102 to move along the axial direction of the sliding shaft 501, so that the end of the panel 102 close to the sliding shaft 501 can also move, that is, the whole panel 102 moves backward to expose the handle groove 4001, and the user can put his hand into the handle groove 4001 to pull the door body 101 or the drawer 301 to open the refrigerator.

[0143] It can be understood that a sliding hole can be provided on the panel 102 or the lever 1301 for the sliding shaft 501 to pass through. The diameter of the sliding hole can be slightly larger than the diameter of the sliding shaft 501, so that the panel 102 can be inclined. Alternatively, the sliding shaft 501 can be replaced by a sliding groove, and a protrusion is provided on the panel 102 or the lever 1301, and the protrusion slides along the sliding groove to drive the panel 102 to move. The protrusion can be provided as a round shaft, or the width of the sliding groove is greater than the height of the protrusion, so that the panel 102 can be inclined.

[0144] Referring to Figure 14 It can be understood that the door assembly of the embodiment of the present application further comprises a sliding block 1401, the sliding block 1401 is slidingly connected to the sliding shaft 501, and the lever 1301 is rotationally connected to the sliding block 1401, so that the sliding block 1401 can drive the panel 102 to move along the sliding shaft 501, and does not affect the lever 1301 to rotationally contact the shell to generate a force to push the panel 102 to move along the axial direction of the sliding shaft 501. Specifically, a pin shaft 1402 is provided on the lever 1301, and a pin hole (not shown in the figure) is provided on the sliding block 1401, and the pin shaft 1402 is arranged in the pin hole, so that the lever 1301 can rotate around the sliding block 1401. The side of the lever 1301 is connected to the panel 102 by a screw, facilitating assembly.

[0145] Referring to Figure 14It is understandable that a return spring 1403 is provided between the slider 1401 and the rocker arm 1301. One end of the return spring 1403 abuts against the slider 1401 and the other end abuts against the rocker arm 1301. When the rocker arm 1301 and the panel 102 tilt, and the panel 102 is released by hand, the return spring 1403 can reset the panel 102 and restore it to a vertical state.

[0146] Reference Figure 15 , Figure 18 and Figure 19 As can be understood, when a user pushes panel 102 from the front, the panel 102 receives the user's pushing force and transmits it to the rocker arm 1301. The rocker arm 1301 tilts up near the point of application of force, causing it to tilt, while the slider 1401 remains stationary or moves slightly. After tilting, one end of the rocker arm 1301 abuts against the outer casing, providing a backward force. This backward force pushes the slider 1401 backward, thereby moving panel 102 backward. The entire process utilizes the lever principle to push panel 102, which is more labor-saving and makes manual pushing more convenient.

[0147] Understandably, the door assembly also includes a drive mechanism that drives the slider 1401 to slide, thereby moving the panel 102 and switching the handle groove 4001 between its active and concealed states. The door assembly also includes a detection device that detects user signals. Upon detecting a user signal, the detection device controls the drive mechanism to activate. Detection trigger signals include one of the following: gesture, voice, touch, or mechanical button. The cooperation between the detection device and the drive mechanism achieves human-machine interaction, enhancing the product's technological appeal. In the event of a power outage, the panel 102 can be moved using the rocker arm 1301, overcoming the resistance of the drive mechanism and requiring less effort.

[0148] Reference Figure 20 It is understandable that, with Figure 19 Compared to the embodiments shown, Figure 20 The embodiment mainly changes the relative positions of the pin 1402 and the return spring 1403 with respect to the sliding shaft 501. Specifically, as shown... Figure 19 As shown, pin 1402 is located below sliding shaft 501, and return spring 1403 is located above sliding shaft 501. Figure 20 As shown, pin 1402 is located above sliding shaft 501, and return spring 1403 is located below sliding shaft 501. Pin 1402 serves as the fulcrum for the rocker arm 1301 to rotate around slider 1401. By changing the position of the fulcrum, the force relationship in the lever structure is altered, thereby adjusting the magnitude of the force that causes the rocker arm 1301 to bend after pushing panel 102. Figure 19 Compared to the embodiments shown, Figure 20The position of the pin shaft 1402 of the embodiment is further away from the force application point of the push panel 102, so that the user can push the push panel 102 with a smaller pushing force.

[0149] It should be noted that in some other embodiments, the pin shaft 1402 and the reset spring 1403 can also be located on the same side of the sliding shaft 501, which is not specifically limited here.

[0150] Referring to Figure 21 It can be understood that in some specific scenarios, the driving device drives the panel 102 back, i.e., the target is to return the panel 102 from the completed state to the initial state, when the user's hand is not completely withdrawn. If the user's hand is clamped between the panel 102 and the shell, the panel 102 is forced to drive the lever 1301 to be raised to a certain angle a, so as to prevent the user from being injured.

[0151] Referring to Figure 21 It can be understood that the lower end surface of the slider 1401 is provided with a magnet 2001, and the upper end surface of the panel 102 is provided with a Hall sensor 2002. The Hall sensor 2002 is opposite to the position of the magnet 2001, so that the Hall sensor 2002 can sense the magnetic signal of the magnet 2001. In the normal operation mode, when the lever 1301 is not raised, the Hall sensor 2002 can sense the magnetic signal of the magnet 2001, and the Hall sensor 2002 outputs a signal to the control chip, so that the whole mechanism operates normally. During the process of returning the panel 102 from the completed state to the initial state, if the lever 1301 is raised, the magnet 2001 is separated from the Hall sensor 2002, the Hall sensor 2002 cannot sense the magnetic signal of the magnet 2001, and the control chip can receive another signal. The control chip can control the driving device to stop running or drive the panel 102 to move away from the opening 4002, so that the hand clamping action is released, and the hand clamping prevention function is realized.

[0152] It should be noted that other detection components can be used instead of the combination of the magnet 2001 and the Hall sensor 2002 to determine whether the hand clamping phenomenon occurs, so as to realize further control, which is not specifically limited here.

[0153] In addition, the driving device of the embodiment of the application can also connect the slider 1401 through the lever 402, referring to Figures 13 to 15 It can be understood that the slider 1401 is provided with a guide waist-shaped groove 1302, and a guide boss 1101 is correspondingly provided at one end of the lever 402, and the guide boss 1101 cooperates with the guide waist-shaped groove 1302. The specific connection mode and beneficial effects of the lever 402 are referred to the above embodiment, which will not be repeated here.

[0154] Referring to Figure 22It can be understood that the door assembly of the embodiment of the present application can also be provided as Figure 5 On the basis of the scheme, a first compression spring 2101 is added, one end of the first compression spring 2101 is connected to the lever 402, and the other end is connected to the fixed support 401 or the shell, and the first compression spring 2101 is configured to provide different directions of force to the lever 402 during rotation of the lever 402, so that the lever 402 has a tendency to rotate in different directions. Specifically, the fixed support 401 is provided with a first mounting portion 2102, the lever 402 is provided with a second mounting portion 2103, one end of the first compression spring 2101 is connected to the first mounting portion 2102, and the other end is connected to the second mounting portion 2103.

[0155] Referring to Figure 23 It can be understood that the door assembly of the embodiment of the present application is in an initial state, the line connecting the first mounting portion 2102 and the second mounting portion 2103 is defined as an indication line 2201, and the direction of the force of the first compression spring 2101 and the like elastic member acting on the lever 402 is the same as the direction of the indication line 2201 toward the lever 402. The line connecting the two ends of the lever 402 forms a center line 2202, the first compression spring 2101 is located on the front side of the lever 402, and the first mounting portion 2102 and the second mounting portion 2103 are both located on the front side of the center line 2202. In the initial state, the intersection of the indication line 2201 and the center line 2202 is located above the rotation center 2203 of the lever 402, at this time the force of the first compression spring 2101 acting on the lever 402 promotes the lever 402 to have a tendency to rotate clockwise, thereby keeping the panel 102 at the opening 4002.

[0156] Referring to Figure 24 It can be understood that the first compression spring 2101 of the embodiment of the present application is in a critical state, the intersection of the indication line 2201 and the center line 2202 coincides with the rotation center 2203 of the lever 402, at this time the force of the first compression spring 2101 acting on the lever 402 does not make the lever 402 have a tendency to rotate.

[0157] Referring to Figure 25 It can be understood that the door assembly of the embodiment of the present application is in an intermediate state, the intersection of the indication line 2201 and the center line 2202 moves to below the rotation center 2203 of the lever 402, at this time the force of the first compression spring 2101 acting on the lever 402 promotes the lever 402 to have a tendency to rotate counterclockwise, thereby forming a boost to assist the user to push open the panel 102, so that the panel 102 moves quickly backward.

[0158] Referring to Figure 26It can be understood that the door assembly of the embodiment of the present application is in the completed state, the intersection of the indication line 2201 and the center line 2202 is still below the rotation center 2203 of the lever 402, at this time, the force of the first compression spring 2101 acting on the lever 402 promotes the lever 402 to have a tendency to rotate counterclockwise, thereby keeping the panel 102 in the completed state.

[0159] It can be understood that, during the process of switching the door assembly of the embodiment of the present application from the completed state to the initial state, as long as the panel 102 reaches the position of the critical state shown in the figure, the force of the first compression spring 2101 will be converted from resistance to assistance, helping the panel 102 to recover and keep at the opening 4002, realizing the design of hiding the handle. Figure 24

[0160] Referring to Figures 27 to 30 It can be understood that the first tension spring 2601 can also be used instead of the first compression spring 2101, at this time, the second mounting portion 2103 is arranged on the rear side of the center line 2202. Of course, the first tension spring 2601 can also be replaced by an elastic member such as a rubber band or an elastic rope, and the structure and use method are similar, which will be described below taking the first tension spring 2601 as an example.

[0161] Referring to Figure 27 It can be understood that the door assembly of the embodiment of the present application is in the initial state, the intersection of the indication line 2201 and the center line 2202 is transferred to the lower side of the rotation center 2203 of the lever 402, at this time, the force of the first tension spring 2601 acting on the lever 402 promotes the lever 402 to have a tendency to rotate clockwise, thereby keeping the panel 102 at the opening 4002.

[0162] Referring to Figure 28 It can be understood that the first tension spring 2601 of the embodiment of the present application is in the critical state, the intersection of the indication line 2201 and the center line 2202 coincides with the rotation center 2203 of the lever 402, at this time, the force of the first tension spring 2601 acting on the lever 402 will not make the lever 402 have a tendency to rotate.

[0163] Referring to Figure 29 It can be understood that the door assembly of the embodiment of the present application is in the intermediate state, the intersection of the indication line 2201 and the center line 2202 is transferred to the upper side of the rotation center 2203 of the lever 402, at this time, the force of the first tension spring 2601 acting on the lever 402 promotes the lever 402 to have a tendency to rotate counterclockwise, thereby forming assistance, assisting the user to push open the panel 102, so that the panel 102 moves backward quickly.

[0164] Referring to Figure 26 ​It can be understood that the door assembly of the embodiment of the present application is in the completed state, the intersection of the indication line 2201 and the center line 2202 is still above the rotation center 2203 of the lever 402, at this time, the force of the first tension spring 2601 acting on the lever 402 promotes the lever 402 to have a tendency to rotate counterclockwise, thereby keeping the panel 102 in the completed state.

[0165] With reference to Figures 31 to 34 It can be understood that the first torsional spring 3001 can also be used instead of the first compression spring 2101, and the first mounting portion 2102 and the second mounting portion 2103 are both located on the front side of the center line 2202.

[0166] With reference to Figure 31 It can be understood that the door assembly of the embodiment of the present application is in the initial state, the intersection of the indication line 2201 and the center line 2202 is above the rotation center 2203 of the lever 402, at this time, the force of the first torsional spring 3001 acting on the lever 402 promotes the lever 402 to have a tendency to rotate clockwise, thereby keeping the panel 102 at the opening 4002.

[0167] With reference to Figure 32 It can be understood that the first torsional spring 3001 of the embodiment of the present application is in the critical state, the intersection of the indication line 2201 and the center line 2202 coincides with the rotation center 2203 of the lever 402, at this time, the force of the first torsional spring 3001 acting on the lever 402 does not make the lever 402 have a tendency to rotate.

[0168] With reference to Figure 33 It can be understood that the door assembly of the embodiment of the present application is in the intermediate state, the intersection of the indication line 2201 and the center line 2202 is transferred to below the rotation center 2203 of the lever 402, at this time, the force of the first torsional spring 3001 acting on the lever 402 promotes the lever 402 to have a tendency to rotate counterclockwise, thereby forming a boost to assist the user to push open the panel 102, so that the panel 102 moves backward quickly.

[0169] With reference to Figure 34 It can be understood that the door assembly of the embodiment of the present application is in the completed state, the intersection of the indication line 2201 and the center line 2202 is still below the rotation center 2203 of the lever 402, at this time, the force of the first torsional spring 3001 acting on the lever 402 promotes the lever 402 to have a tendency to rotate counterclockwise, thereby keeping the panel 102 in the completed state.

[0170] It should be noted that the door assembly of the embodiment of the present application can also include a guide assembly and a driving device and the like structure, and the specific connection mode and beneficial effects refer to the above-mentioned embodiments, which will not be described here.

[0171] With reference toFigure 35 It can be understood that the door assembly of the embodiment of the present application can also be provided to include a shell (not shown in the figure), the panel 102, the driving device and the clutch mechanism 3401, wherein the shell is provided with a handle slot 4001 having an opening 4002, the panel 102 is arranged at the opening 4002, and the panel 102 is moved along the axial direction of the opening 4002 through the driving of the driving device. The clutch mechanism 3401 is used to control the connection or disconnection of the driving device and the panel 102. In automatic operation, the clutch mechanism 3401 makes the driving device and the panel 102 power connected, so that the driving device can drive the panel 102 to move, realizing automatic control. When manual operation is needed due to power failure or other emergencies, the clutch mechanism 3401 makes the driving device and the panel 102 disconnected, so that the movement of the panel 102 will not affect the driving device, effectively protecting the driving device such as the motor 901 from damage. Moreover, since there is no resistance of the driving device, the force required to push the panel 102 is smaller, so that the panel 102 is more easily pushed.

[0172] Referring to Figure 35 It can be understood that the door assembly of the embodiment of the present application further includes a fixed support 401 (referring to Figure 9 ) and a push rod 402, the fixed support 401 is connected to the inner side of the handle slot 4001, the push rod 402 is rotatably connected to the fixed support 401 through a rotating shaft 903 at one end, and is connected to the panel 102 at the other end. The driving device drives the rotating shaft 903 to rotate, and the clutch mechanism 3401 is arranged between the driving device and the rotating shaft 903. When the clutch mechanism 3401 makes the driving device and the rotating shaft 903 power connected, the driving device can drive the panel 102 to move through the rotating shaft 903 and the push rod 402. When the clutch mechanism 3401 makes the driving device and the rotating shaft 903 disconnected, the user pushes the panel 102 to drive the rotating shaft 903 and the push rod 402 to rotate, while the driving device is not affected at least for a period of time.

[0173] It should be noted that in some embodiments, the driving device can also be connected to the panel 102 only through the clutch mechanism 3401, without the push rod 402, for example, the two ends of the panel 102 are rotatably connected to the shell, and the driving device drives the panel 102 to rotate along the front and back directions.

[0174] Referring to Figure 36It can be understood that the clutch mechanism 3401 comprises a convex part 3501 arranged on the rotating shaft 903 and a concave part 3502 connected to the driving device, the concave part 3502 accommodates the convex part 3501, the slot width of the concave part 3502 is greater than the maximum width of the convex part 3501 in the concave part 3502, so that there is a rotation gap 3503 between the concave part 3502 and the convex part 3501, that is, the concave part 3502 and the convex part 3501 are located on the same circle, and the arc of the concave part 3502 is greater than the arc of the convex part 3501. Because of the existence of the rotation gap 3503, the convex part 3501 will not be in contact with the side wall of the concave part 3502 at a certain position, so that the transmission will not be achieved. When one side of the rotating direction of the convex part 3501 is in contact with the side wall of the concave part 3502, the convex part 3501 and the concave part 3502 will rotate together, so that the transmission is achieved.

[0175] It should be noted that, regarding the combined structure of the convex part 3501 and the rotating shaft 903, the convex part 3501 can be designed as a separate part and then installed on the rotating shaft 903, or the convex part 3501 and the rotating shaft 903 can be machined from the same blank.

[0176] Referring to Figure 37 It can be understood that the door assembly of the embodiment of the present application is in the initial state. The driving device comprises a motor 901, the output shaft of the motor 901 is connected with a driving gear 902, the rotating shaft 903 is connected with a driven gear 904, the driving gear 902 is engaged with the driven gear 904, and the concave part 3502 is arranged on the driven gear 904. A user pushes the panel 102 from the front of the panel 102, the panel 102 drives the rotating shaft 903 and the lever 402 to rotate, and the convex part 3501 will rotate along the counterclockwise direction with the rotating shaft 903. At this time, the upper sides of the convex part 3501 and the concave part 3502 abut against each other, and the lower sides of the convex part 3501 and the concave part 3502 are not in contact, so that the concave part 3502 will not rotate with the convex part 3501.

[0177] Referring to Figure 38 It can be understood that the door assembly of the embodiment of the present application is in the intermediate state, because only the convex part 3501 rotates and the concave part 3502 remains stationary, so that the two sides of the convex part 3501 and the concave part 3502 are not in contact, and the rotation of the convex part 3501 is not resisted by the motor 901.

[0178] Referring to Figure 39 It can be understood that the door assembly of the embodiment of the present application is in the completed state, the lower sides of the convex part 3501 and the concave part 3502 abut against each other, and there is a large gap between the upper sides of the convex part 3501 and the concave part 3502. During the process that the door assembly returns from the completed state to the initial state, the convex part 3501 will not drive the concave part 3502 to rotate, that is, the rotation of the convex part 3501 is not resisted by the motor 901.

[0179] Reference Figure 40 It is understood that the door component in this embodiment of the invention is in a completed state, but... Figure 39 The difference is that Figure 40 The panel 102 is driven by the motor 901 from... Figure 37 The door assembly moves from its initial state to its completed state. During this process, the driven gear 904 drives the convex part 3501 and the rotating shaft 903 to rotate via the recess 3502, with the upper sides of the convex part 3501 and the recess 3502 remaining in contact. When the door assembly returns from the completed state to the initial state, the driven gear 904 first idles at a certain angle to eliminate the gap between the lower sides of the convex part 3501 and the recess 3502, causing the lower sides of the convex part 3501 and the recess 3502 to abut against each other, allowing the motor 901 to drive the rotating shaft 903 to rotate.

[0180] It is understandable that the output shaft of the motor 901 can also be connected to the rotating shaft 903 through the rotating shaft connecting sleeve 1001. At this time, the concave part 3502 is provided on the rotating shaft connecting sleeve 1001 and the convex part 3501 is provided on the rotating shaft 903, which can achieve the same clutch effect.

[0181] It should be noted that the clutch mechanism 3401 can also be replaced by a driven plate, a driving plate, and a pressure plate. The drive device transmits power to the driven plate through the friction between the contact surfaces of the driving plate and the pressure plate and the driven plate. The separation or engagement of the drive device and the panel 102 is achieved by controlling whether the driven plate and the driving plate are engaged.

[0182] Reference Figure 35 It is understood that the door assembly in this embodiment of the invention also includes guide components such as a sliding shaft 501 to better guide the movement of the panel 102.

[0183] It can be understood that, since in the initial state, the first compression spring 2101 presses the panel 102 at the opening 4002, when the user pushes the panel 102 away, the force of the first compression spring 2101 needs to be overcome, so that the first compression spring 2101 is compressed and converted to a critical state, and then the first compression spring 2101 can release the elastic potential energy to form assistance to help the user push the panel 102 away. Therefore, in the distance from the initial state to the critical state, the force generated by the first compression spring 2101 is the resistance of the user pushing the panel 102 away, and by using the combination of the lever 1301, the user pushes the panel 102, the end surface edge of the lever 1301 abuts the inner side of the shell to make the lever 1301 tilt, and the panel 102 is pushed by using the lever principle, which is more labor-saving and helps to overcome the elastic force of the first compression spring 2101 in the conversion process, and improves the user experience. Moreover, after the panel 102 passes through the critical state, the pushing force of the lever 1301 decreases, and the assistance of the first compression spring 2101 increases, so that in the whole process, the shortcomings of only the first compression spring 2101 or only the lever 1301 can be overcome, and a complementary effect is formed.

[0184] It can be understood that, in the case of power failure, if the panel 102 is pushed by the assistance of the lever 1301, in the case of large pushing force, since the driving device such as the motor 901 is connected with the panel 102, it is easy to cause damage to the driving device. By using the combination of the clutch mechanism 3401, when the panel 102 is pushed, the clutch mechanism 3401 makes the driving device and the panel 102 disengage, effectively protecting the motor 901 from damage. Moreover, since there is no resistance of the driving device, the force required to push the panel 102 is smaller, so that the panel 102 is more easily pushed. In addition, since the clutch mechanism 3401 has a gap, when the panel 102 is pushed, if the force point is far away, the transmitted force is small, and the phenomenon of being stuck may occur. By using the combination of the lever 1301, the panel 102 is pushed, and the panel 102 is pushed by using the lever principle, which is more labor-saving and reduces the possibility of being stuck.

[0185] It can be understood that in the initial state, the clutch mechanism 3401 disengages the driving device and the panel 102, and the panel 102 is out of the restriction of the driving device, so that the panel 102 is easy to sway and has a certain offset, that is, the position of the panel 102 is difficult to keep at the opening 4002, resulting in poor hiding effect. And, due to the gap of the clutch mechanism 3401, when pushing the panel 102, if the force point is far away, the force transmitted is small, and the phenomenon of jamming may occur. By using the first compression spring 2101 together, in the initial state, the first compression spring 2101 presses the panel 102 at the opening 4002, improving the hiding effect. In addition, due to the lack of resistance of the driving device, and the elastic member provides assistance, so that the force required to push the panel 102 is smaller, so it is easier to push the panel 102, and the possibility of jamming is reduced.

[0186] With reference to Figure 41 and Figure 42 It can be understood that the handle slot 4001 includes a hand holding slot part 4003 and a movable slot part 4004, the hand holding slot part 4003 and the movable slot part 4004 are communicated, the opening 4002 and the movable slot part 4004 are communicated, and the panel 102 is located in the movable slot part 4004. The movable slot part 4004 accommodates the panel 102 to move along the axial direction of the opening 4002, and after the hand of the person enters the opening 4002, it enters the hand holding slot part 4003, so that the door body 101 can be pulled.

[0187] With reference to Figure 41 and Figure 42 It can be understood that the door assembly of the embodiment of the application further includes a light source 4005, which is used to illuminate the hand holding slot part 4003. By setting the light source 4005, the light source 4005 can be turned on when the user pushes open the panel 102, thereby illuminating the area where the hand holding slot part 4003 is located, indicating the position of the hand holding slot part 4003, facilitating the user to use, and improving the user experience.

[0188] With reference to Figure 41 and Figure 42 It can be understood that the light source 4005 is arranged on the inner wall of the hand holding slot part 4003 and is located on the side of the hand holding slot part 4003 away from the panel 102, that is, away from the movable slot part 4004. By arranging the light source 4005 away from the panel 102, the hand of the person is not easy to touch the light source 4005, and the position of the hand holding slot part 4003 can be better indicated.

[0189] It can be understood that the outer surface of the light source 4005 is flush with the inner wall surface of the handhold groove 4003 to prevent accidental touching. The inner wall of the handhold groove 4003 is provided with a mounting recess, which accommodates the light source 4005, so that the outer surface of the light source 4005 is flush with the inner wall surface of the handhold groove 4003, which can illuminate the handhold groove 4003 and prevent accidental touching of the light source 4005 when the hand is deep into the handhold groove 4003.

[0190] It can be understood that the outer shell can be made of a light-transmitting material, for example, the material of the outer shell is glass. By using a light-transmitting material, the light emitted by the light source 4005 can pass through the outer shell, making it easier for the user to quickly find the position of the handhold groove 4003, so that the hand does not need to touch around to find the position of the handhold groove 4003.

[0191] Referring to Figure 41 It can be understood that the door assembly of the embodiment of the application is in an initial state. At this time, the outer surface of the panel 102 is flush or smoothly transitions with the outer surface of the outer shell, and the light source 4005 remains in the closed state.

[0192] Referring to Figure 42 It can be understood that the door assembly of the embodiment of the application is in a completed state, at which time the panel 102 is retracted into the movable groove 4004 to reveal the handhold groove 4003, and the light source 4005 is turned on to illuminate the handhold groove 4003 and the movable groove 4004, so that the user can easily see the position of the handhold groove 4003.

[0193] It can be understood that the light source 4005 can be used in cooperation with a travel switch or other detection element to provide convenience for use. For example, the travel switch is arranged on the path of movement of the panel 102, and when the user pushes the panel 102 to move towards the inside of the movable groove 4004, or the driving device drives the panel 102 to move towards the inside of the movable groove 4004, the travel switch is triggered, and the light source 4005 is turned on.

[0194] Referring to Figure 43 and Figure 45It can be understood that the panel 102 comprises a holding portion 4201, two first connecting portions 4202 and two second connecting portions 4401. The holding portion 4201 is arranged along the axis direction parallel to the rotation shaft 903. The two first connecting portions 4202 are respectively connected to the two ends of the holding portion 4201 and arranged along the axis direction perpendicular to the rotation shaft 903. The two ends of the second connecting portion 4401 are respectively connected to the first connecting portion 4202 and the lever 402, and arranged along the axis direction parallel to the rotation shaft 903. The holding portion 4201 is used to protrude out of the opening 4002 and is held by the user outside the shell. The second connecting portion 4401 is used to connect the lever 402 to transmit power. The first connecting portion 4202 is used to connect the holding portion 4201 and the second connecting portion 4401, and the whole forms the shape of a handle.

[0195] It can be understood that the first connecting portion 4202 is arranged in the direction away from the back of the holding portion 4201, that is, arranged in the rear direction, which is not limited here.

[0196] Referring to Figure 44 It can be understood that the fixed support 401 is provided with a rear cover 4301, and the rear cover 4301 is provided with an on-off device 4302. Referring to Figure 46 It can be understood that the on-off device 4302 comprises a telescopic push rod 4501 arranged between the panel 102 and the fixed support 401. When the push rod 4501 is in the retracted state, the whole panel 102 can normally retract into the handle slot 4001. When the push rod 4501 is in the extended state, the holding portion 4201 and part of the first connecting portion 4202 are pushed out of the handle slot 4001 to form a shape for the user to hold.

[0197] Referring to Figures 46 to 55It can be understood that the shutter 4302 comprises a shell 4502, a sliding piece 4503 and a second compression spring 4504, the shell 4502 is provided with a guide sliding groove 4505 in a closed shape, the guide sliding groove 4505 has a first stop position 4802 and a second stop position 4803, the sliding piece 4503 is located between the guide sliding groove 4505 and the push rod 4501, one end of the sliding piece 4503 is provided with a sliding part 4801, and the sliding part 4801 is located in the guide sliding groove 4505. The shell 4502 is provided with a guide hole, the push rod 4501 is arranged in the guide hole (not shown in the figure), and the two ends of the second compression spring 4504 are connected with the push rod 4501 and the shell 4502 respectively, the push rod 4501 is in axial extension and retraction movement along the guide hole, so that the second compression spring 4504 is compressed or elongated. The push rod 4501 is provided with a rotating part 4701, the rotating part 4701 is rotationally connected with the sliding piece 4503, the axis of the rotating part 4701 is perpendicular to the axis of the push rod 4501, and the push rod 4501 is rotationally connected with the sliding piece 4503 through the rotating part 4701, so that the movement of the push rod 4501 drives the movement of the sliding piece 4503, and the locking of the sliding piece 4503 can limit the movement of the push rod 4501. In order to make the movement track of the sliding piece 4503 more controllable, the shell 4502 is further provided with a strip-shaped limiting groove 4702, the rotating part 4701 is provided with a limiting part 4703, and the limiting part 4703 is located in the limiting groove 4702, so that one end of the sliding piece 4503 moves linearly along the limiting groove 4702, and the other end moves in a circular direction along the guide sliding groove 4505.

[0198] Specifically, in the first state, the sliding part 4801 is located at the first stop position 4802, so that the push rod 4501 remains in the retracted state. In the second state, the sliding part 4801 is located at the second stop position 4803, so that the push rod 4501 remains in the extended state. In other words, the first stop position 4802 and the second stop position 4803 can make the sliding part 4801 stay in a relatively stable state, and the sliding part 4801 will not be separated from the first stop position 4802 and the second stop position 4803 under the action of no external force, so as to make the push rod 4501 remain at a predetermined position.

[0199] Referring to Figure 47 It can be understood that the door assembly of the embodiment of the present application is in an initial state (hidden state). At this time, the outer surface of the holding part 4201 is flush with or smoothly transitions to the outer surface of the shell. Correspondingly, referring to Figure 48 At this time, the push rod 4501 is retracted in the shell 4502, and the second compression spring 4504 is in a compressed state. Referring to Figure 49 The sliding part 4801 is located at the first stop position 4802, and the limiting part 4703 is located at one end of the limiting groove 4702 close to the guide sliding groove 4505. Among them, the dashed line in the figure represents the movement path of the sliding part 4801 and the limiting part 4703.

[0200] Referring toFigure 50 It can be understood that the door assembly of the embodiment of the present application is in the intermediate state. At this time, the outer surface of the holding portion 4201 starts to protrude out of the handle slot 4001, and in appearance, the outer surface of the holding portion 4201 protrudes out of the outer surface of the shell. Correspondingly, referring to Figure 51 At this time, the push rod 4501 is pushed out of the guide hole under the action of the second compression spring 4504, to push the second connecting portion 4401 to move, so that the holding portion 4201 protrudes out of the handle slot 4001. Referring to Figure 52 The push rod 4501 is pushed to move backward by a distance first, so that the sliding portion 4801 is disengaged from the first stop position 4802, and then the second compression spring 4504 acts on the push rod 4501, to drive the sliding sheet 4503 to move towards the second stop position 4803.

[0201] Referring to Figure 53 It can be understood that the door assembly of the embodiment of the present application is in the completed state (use state). At this time, the holding portion 4201 and part of the first connecting portion 4202 protrude out of the handle slot 4001, to facilitate the user to hold. Correspondingly, referring to Figure 54 At this time, the push rod 4501 is in a completely extended state, and the second compression spring 4504 returns to its original state or is in a small amount of compression state. Referring to Figure 55 The sliding portion 4801 is located at the second stop position 4803, and the limiting portion 4703 is located at one end of the limiting slot 4702 away from the guide sliding slot 4505.

[0202] It can be understood that when it is needed to restore the door assembly from the completed state to the initial state, the user pushes the holding portion 4201 to move towards the rear, to compress the second compression spring 4504, and the sliding portion 4801 moves along Figure 55 the clockwise direction, from the second stop position 4803 to the first stop position 4802.

[0203] It should be noted that in the above example, the sliding portion 4801 stays at the first stop position 4802 by relying on the recess formed by the guide sliding slot 4505 itself, and the sliding portion 4801 stays at the second stop position 4803 by relying on the push rod 4501 abutting against the shell 4502, or by relying on the limiting portion 4703 abutting against one end of the limiting slot 4702. In other schemes, other schemes can also be used, for example, the guide sliding slot 4505 is not communicated with the limiting slot 4702, and the sliding portion 4801 stays at the second stop position 4803 by relying on the sliding portion 4801 abutting against the edge of the guide sliding slot 4505.

[0204] Referring to Figure 55It can be understood that the first stop position 4802 deviates from the axis of the limiting groove 4702, that is, the first stop position 4802 is not on the same straight line as the axis of the limiting groove 4702, so that when the sliding sheet 4503 moves towards the rear, the sliding part 4801 moves towards the side away from the axis of the limiting groove 4702, thereby disengaging the first stop position 4802. In order to further control the sliding direction of the sliding part 4801, the height of the first stop position 4802 near the axis of the limiting groove 4702 is greater than the height of the side away from the axis of the limiting groove 4702, thereby guiding the sliding part 4801 to move towards the side away from the axis of the limiting groove 4702. In addition, a guide slope 5401 is arranged to guide the sliding part 4801 to move from the second stop position 4803 to the first stop position 4802, and the guide slope 5401 is arranged to intersect the axis of the limiting groove 4702, that is, the guide slope 5401 is located on the extension line of the limiting groove 4702, so that the sliding part 4801 moves in a straight line to the guide slope 5401, and then moves along the guide slope 5401, and finally falls into the first stop position 4802.

[0205] Referring to Figure 56 It can be understood that the second compression spring 4504 can also be replaced by a second extension spring 5501, specifically, a connecting end is arranged on the push rod 4501 and the shell 4502 respectively, and the two ends of the second extension spring 5501 are connected to the two connecting ends respectively, so as to produce different deformation amounts with the movement of the push rod 4501, thereby providing a restoring force. For specific movement process, refer to the embodiment of the second compression spring 4504, which will not be repeated here.

[0206] It should be noted that the second extension spring 5501 can also be replaced by a rubber band or an elastic rope.

[0207] Referring to Figure 57 It can be understood that the second compression spring 4504 can also be replaced by a second extension spring 5501, specifically, a connecting end is arranged on the push rod 4501 and the shell 4502 respectively, and the two ends of the second extension spring 5501 are connected to the two connecting ends respectively, so as to produce different deformation amounts with the movement of the push rod 4501, thereby providing a restoring force. For specific movement process, refer to the embodiment of the second compression spring 4504, which will not be repeated here.

[0208] It should be noted that the push rod 4501 can also be driven by a linear motor 901 or other driving mechanism.

[0209] The embodiment of the application provides a control method of a door assembly, which is applied to the door assembly in the above embodiment, wherein the structure or components of the door assembly have been described in detail in the above embodiment, and will not be repeated here. Referring to Figure 58As shown, the control method of the embodiment of the present application includes but is not limited to step S5710, step S5720, and step S5730.

[0210] In step S5710, the control panel is switched from the first state to the second state in response to detecting the target object.

[0211] The detection device is used to detect the signal of the user, and after detecting the signal of the user, the driving device is controlled to start. The driving device controls the panel to move along the axis of the opening through the pull rod. When the user's hand is detected, the panel is protruded from the opening or the panel is retracted into the shell. The detection trigger signal includes one of the following: gesture, voice, touch, and mechanical key. Through the cooperation of the detection device and the driving device, man-machine interaction is realized, and the technological sense of the product is improved. For example, when the hand is close to the panel, the detection device is an infrared sensor, and when the user is close to a predetermined distance, a signal is sent to the control chip, and the control chip controls the driving device to start, so that the panel moves to expose the handle slot or the holding part. For another example, when the detection device detects that the user's gesture is the same as the predetermined gesture, a signal is sent to the control chip, and the control chip controls the driving device to start, so that the panel moves to expose the handle slot or the holding part. For another example, when the hand touches the panel, the detection device is inducted, and a signal is sent to the control chip, and the control chip controls the driving device to start, so that the panel moves to expose the handle slot or the holding part. Therefore, the type of detection signal is not limited in this embodiment.

[0212] In step S5720, the panel is kept in the second state in response to continuously detecting the target object.

[0213] If the user is continuously detected, the state of exposing the handle slot or the holding part is kept, so that the door assembly is in a use state, which does not hinder the user to open the door body and does not cause the hand to be clamped, and the user experience is improved.

[0214] In step S5730, the panel is switched from the second state to the first state in response to not detecting the target object.

[0215] After the detection device receives the person leaving signal, for example, the hand of the person leaves the panel, or the user is detected to be away from the set distance, the control panel returns, the outer surface of the panel is flush with or smoothly transitions to the outer surface of the shell, and the hidden state is restored.

[0216] Another embodiment of the present application also provides a control method of a door assembly, as shown in Figure 59 As shown, the control method of the embodiment of the present application includes but is not limited to step S5710, step S5810, step S5820, step S5830, and step S5840.

[0217] In step S5710, in response to the detection of the target object, the control panel transitions from the first state to the second state.

[0218] Once a user's signal is detected, indicating that the user is ready to open the door, the control panel moves to make it easier for the user to use.

[0219] Step S5810: If a target object is detected, continue detection; if no target object is detected, proceed to step S5820.

[0220] If the user's signal is still detected, it means the user is still using the device, and the detection continues until no user signal is detected. During this period, the panel state remains unchanged, i.e., it remains in the second state. If no user signal is detected, it means the user has finished using the device, and the next step S5820 is executed.

[0221] S5820, start timing.

[0222] If no user signal is detected, start a timer to calculate the time the user left.

[0223] In step S5830, if the timer reaches the first preset time, then step S5840 is executed; otherwise, the timer continues to be checked to see if the first preset time has been reached.

[0224] Step S5840: The control panel transitions from the second state to the first state.

[0225] Once the preset safe time is reached, indicating that the user has moved away, the control panel returns to its original position, its outer surface flush with or smoothly transitioning to the outer shell, reverting to its hidden state. By designing a first preset time as a safe period, the user has ample time to remove their hand, thereby reducing the risk of pinching.

[0226] Another embodiment of the present invention also provides a control method for a door assembly, applied to, for example... Figure 35 The diagram shows a door assembly with a clutch mechanism. (Example) Figure 60 As shown, the control method of this embodiment includes, but is not limited to, steps S5910 and S5920, and steps S5910 and S5920 are an embodiment of a refined process of step S5710.

[0227] In step S5910, in response to detecting a target object, the drive device is controlled to rotate forward at a first speed for a second preset time.

[0228] After the detection device receives a signal that someone is there, the drive device rotates in the forward direction at a first speed. The drive device drives the concave part to rotate, and one side of the concave part abuts against the convex part, thereby driving the convex part to rotate together. After the drive device operates for a second preset time, the panel moves to the second state position.

[0229] Step S5920, control the driving device to reverse at a second speed.

[0230] The driving device rotates in the reverse direction at the second speed, and the rotation angle of the driving device is a, so that the other side of the recess abuts against the convex part, that is, the driving device reverses so that the recess rotates a distance equal to the rotation gap between the recess and the convex part, and the convex part remains stationary due to the existence of the rotation gap. By reversing the driving device, the time of the recess idling is reduced, and the time for the panel to return is shortened.

[0231] It should be noted that the first speed can be equal to the second speed, or different. Among them, since the driving device reverses at the second speed, it is idling, and the second speed can be designed to be greater than the first speed to improve efficiency.

[0232] Another embodiment of the present application also provides a control method of a door assembly, which is applied to a door assembly with a clutch mechanism as shown in Figure 35 As shown in Figure 61 The control method of the embodiment of the present application includes but is not limited to steps S6010, S6010, and steps S6010, S6020 are one embodiment of the detailed process of step S5730.

[0233] Step S6010, in response to no target object being detected, control the driving device to reverse at a third speed for a third preset time.

[0234] After the detection device obtains the human leaving signal, the driving device rotates in the reverse direction at the third speed, the driving device drives the recess to rotate, the other side of the recess abuts against the convex part, thereby driving the convex part to rotate together, and the driving device operates for a third preset time, so that the panel moves to the position of the first state.

[0235] Step S6020, control the driving device to rotate forward at a fourth speed.

[0236] The driving device rotates in the forward direction at the fourth speed, and the rotation angle of the driving device is a, so that one side of the recess abuts against the convex part, that is, the driving device rotates forward so that the recess rotates a distance equal to the rotation gap between the recess and the convex part, and the convex part remains stationary due to the existence of the rotation gap. By rotating the driving device forward, the time of the recess idling is reduced, and the time for opening the panel next time is shortened.

[0237] It should be noted that the third speed can be equal to the fourth speed, or different. Among them, since the driving device rotates forward at the fourth speed, it is idling, and the fourth speed can be designed to be greater than the third speed to improve efficiency.

[0238] Another embodiment of the present application also provides a control method of a door assembly, which is applied to a door assembly with a clutch mechanism as shown in Figure 21The door assembly with the clutch mechanism is shown. Figure 62 The control method of the embodiment of the present application includes but is not limited to step S5710, step S5810, step S6110, step S6120, and step S6130.

[0239] In step S5710, the control panel is switched from the first state to the second state in response to the detection of the target object.

[0240] The signal of the detection of the user represents that the user is ready to open the door, and the control panel is moved to facilitate the use of the user.

[0241] In step S5810, when the target object is detected, the detection is continued; and when the target object is not detected, step S6110 is executed.

[0242] In step S6110, the control panel is moved towards the direction of the opening.

[0243] After the detection device obtains the signal of the person leaving, for example, the hand of the person leaves the panel, or the user is detected to be away to a set distance, the control panel is returned, the outer surface of the panel is flush with or smoothly transitions to the outer surface of the shell, and the hidden state is restored.

[0244] In step S6120, when the magnetic signal is detected, step S6110 is continued; and when the magnetic signal is not detected, step S6130 is executed.

[0245] In the process of the return of the panel to the opening, the Hall sensor always senses the magnetic signal of the magnet, and when the magnetic signal is sensed, it represents that the panel is not deflected and can work normally. When the magnetic signal is not sensed, it represents that the panel is tilted by the hand and separated from the magnet.

[0246] In step S6130, the control panel is stopped or moved away from the opening.

[0247] The control panel is stopped, which can prevent the panel and the shell from continuously clamping the hand of the user. The control panel is moved away from the opening, which can release the hand of the user. The above can achieve the anti-pinch function and reduce the possibility of injury of the user.

[0248] Another embodiment of the present application also provides a control method of a door assembly, as shown in Figure 63 The control method of the embodiment of the present application includes but is not limited to step S6210.

[0249] In step S6210, in response to the power-off restart and the panel being in the second state, the control panel is switched to the first state.

[0250] When power is off, the panel is in the process of opening or closing, so it can be in the position of the second state, i.e. the position of the completed state or the position of the intermediate state. When power is reconnected and restarted, the control panel moves to the position of the first state, so that the outer surface of the panel is flush or smoothly transitions with the outer surface of the shell, and the hidden state is restored.

[0251] Another embodiment of the present application also provides a control method of a door assembly, which is applied to the door assembly with a clutch mechanism as shown in Figure 41 The control method of the embodiment of the present application includes but is not limited to step S6310, step S6320 and step S6330. Figure 64

[0252] Step S6310: In response to detecting the target object, the control panel is switched from the first state to the second state, and the light source is turned on.

[0253] The detection device is used to detect the signal of the user, and after detecting the signal of the user, the driving device is started to control the panel to move along the axis of the opening. When the user uses the handle, the panel is retracted into the shell, and the light source is turned on to illuminate the area where the handle slot is located, indicating the position of the handle slot, facilitating the use of the user and improving the user experience. The light source is turned on and the panel moves without any sequence requirement.

[0254] Step S6320: In response to continuously detecting the target object, the panel is kept in the second state, and the light source is kept in the on state.

[0255] If the user is continuously detected, the handle slot is kept exposed, so that the door assembly is in the use state, which does not hinder the user to open the door body and does not cause the problem of pinching the hand, improving the user experience. And keeping the light source in the on state can also improve the aesthetics of the door body.

[0256] Step S6330: In response to not detecting the target object, the control panel is switched from the second state to the first state, and the light source is turned off.

[0257] After the detection device obtains the signal that the person leaves, for example, the hand of the person leaves the panel, or the user is detected to be away to a set distance, the control panel is controlled to return to the opening, and the outer surface of the panel is flush or smoothly transitions with the outer surface of the shell, and the hidden state is restored. And the light source is turned off, which can save energy. Of course, in other embodiments, the light source can also be turned off in step S6320, which is not limited here.

[0258] One embodiment of the present application also provides a control device built in a refrigerator or other household appliances, which includes one or more control processors and memories. Hereinafter, one control processor and one memory are taken as an example for illustration. ​

[0259] The control processor and the memory can be connected by a bus or other means. The memory, as a non-transitory computer readable storage medium, can be used to store non-transitory software programs and non-transitory computer executable programs. In addition, the memory can include a high-speed random access memory and can also include a non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state memory device. In some embodiments, the memory can optionally include a memory that is remotely arranged with respect to the control processor, and these remote memories can be connected to the control device through a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0260] The non-transitory software programs and instructions required to implement the control method applied to the control device in the above-mentioned embodiments are stored in the memory, and when executed by the control processor, the control method applied to the control device in the above-mentioned embodiments is executed, for example, the method steps S5710 to S5730 in the above-described Figure 58 , the method steps S5710, S5810 to S5840 in the above-described Figure 59 , the method steps S5910 to S5920 in the above-described Figure 60 , the method steps S6010 to S6020 in the above-described Figure 61 , the method steps S5710, S5810, S6110 to S6130 in the above-described Figure 62 , the method step S6210 in the above-described Figure 63 , the method steps S6310 to S6330 in the above-described Figure 64 .

[0261] One embodiment of the present application also provides a refrigerator comprising the control device of the above-mentioned embodiments.

[0262] Since the refrigerator in the present embodiment has the control device as in any of the above-mentioned embodiments, the refrigerator in the present embodiment has the hardware structure of the control device in the above-mentioned embodiments, and the control processor in the control device can call the control program of the refrigerator stored in the memory to realize the control of the control device. The specific embodiments of the refrigerator in the present embodiment can refer to the above-mentioned embodiments, and to avoid redundancy, they will not be described here.

[0263] In addition, one embodiment of the present application also provides a computer readable storage medium storing computer executable instructions, which are executed by one or more control processors, for example, by one control processor, so that the above-mentioned one or more control processors execute the control method in the above-mentioned method embodiments, for example, execute the method steps S5710 to S5730 in the above-described ​ , the method steps S5710 to S5730 in the above-described​ the method steps S5710, S5810 to S5840 in the method of ​ the method steps S5910 to S5920 in the method of ​ the method steps S6010 to S6020 in the method of ​ the method steps S5710, S5810, S6110 to S6130 in the method of ​ the method step S6210 in the method of ​ the method steps S6310 to S6330 in the method of

[0264] It is understood by those of ordinary skill in the art that all or some of the steps in the methods disclosed above, the systems can be implemented as software, firmware, hardware and appropriate combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software can be distributed on a computer readable medium, which can include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically includes computer readable instructions, data structures, program modules or other data in modulated data signals such as carrier waves or other transport mechanisms, and can include any information delivery medium.

[0265] The embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those of ordinary skill in the art without departing from the spirit of the present application.

Claims

1. A door assembly characterized by, The door assembly comprises: a housing provided with a handle slot having an opening; a panel located at the opening; a driving device for driving the panel to axially extend and retract along the opening; a clutch mechanism for controlling the connection or disconnection between the driving device and the panel; wherein the door assembly further comprises a fixed support connected to the inner side of the handle slot and a lever rod rotatably connected to the fixed support at one end through a rotating shaft and connected to the panel at the other end, the driving device drives the rotating shaft to rotate, the clutch mechanism is arranged between the driving device and the rotating shaft, the clutch mechanism comprises a convex portion arranged on the rotating shaft and a concave portion connected to the driving device, the concave portion accommodates the convex portion, and there is a rotating gap between the concave portion and the convex portion; the panel has a first state and a second state, in the first state, the outer surface of the panel is flush with or smoothly transitions to the outer surface of the housing, and in the second state, part of the panel protrudes out of the opening or the panel retracts into the housing.

2. The door assembly of claim 1, wherein, The driving device comprises a motor, the output shaft of the motor is connected to the rotating shaft through a rotating shaft connecting sleeve, and the concave portion is arranged on the rotating shaft connecting sleeve.

3. The door assembly of claim 1, wherein, The driving device comprises a motor, the output shaft of the motor is connected to the rotating shaft through a rotating shaft connecting sleeve, and the concave portion is arranged on the rotating shaft connecting sleeve.

4. The door assembly of claim 1, wherein, The driving device comprises a motor, the output shaft of the motor is connected to the rotating shaft through a rotating shaft connecting sleeve, and the concave portion is arranged on the rotating shaft connecting sleeve.

5. The door assembly of claim 4, wherein, The number of the lever rods is two, and the two lever rods are connected to the fixed support through the rotating shaft and connected to the panel at both ends.

6. The door assembly of claim 4, wherein, The panel comprises a holding portion, two first connecting portions and two second connecting portions, the holding portion is arranged along the axis direction parallel to the rotating shaft, the two first connecting portions are respectively connected to the two ends of the holding portion and arranged in the direction away from the back surface of the holding portion, the two ends of the second connecting portion are respectively connected to the first connecting portion and the lever rod, and the second connecting portion is arranged along the axis direction parallel to the rotating shaft; in the first state, the outer surface of the holding portion is flush with or smoothly transitions to the outer surface of the housing, and in the second state, the holding portion and at least part of the first connecting portion protrude out of the opening.

7. The door assembly of claim 1, wherein, The panel comprises a baffle portion and two third connecting portions, the baffle portion is arranged along the axis direction parallel to the rotating shaft, the two third connecting portions are spaced apart and connected to one side of the baffle portion and arranged in the direction away from the back surface of the baffle portion, and the lever rod is connected to the third connecting portion; in the first state, the outer surface of the baffle portion is flush with or smoothly transitions to the outer surface of the housing, and in the second state, the baffle portion retracts into the housing.

8. The door assembly of claim 7, wherein, The door assembly further comprises a guide assembly connected to the panel to guide the panel to axially extend and retract along the opening. The guide assembly comprises a sliding shaft, both ends of the sliding shaft are fixedly connected to the fixed support, the panel is slidingly connected to the sliding shaft, and the lever rod is rotatably connected to the panel.

9. The door assembly of claim 8, wherein, One end of the lever is provided with a guide boss, and the panel is provided with a guide waist hole or a guide waist groove matched with the guide boss.

10. The door assembly of claim 8, wherein, The panel is provided with a guide boss, and one end of the lever is provided with a guide waist hole or a guide waist groove matched with the guide boss.

11. A refrigerator characterized by The door assembly comprises the door assembly according to any one of claims 1 to 10.

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