Door assembly and refrigerator

Abstract

The present invention discloses a door assembly and a refrigerator having the door assembly, wherein the door assembly includes an outer shell, a panel, a guide assembly and a tilting rod, wherein the outer shell is provided with a handle groove having an opening; the panel is located at the opening; the guide assembly is used to guide the panel to telescopically move along the axial direction of the opening; one end of the tilting rod is connected to the panel, and the other end is used to abut the outer shell to provide a reaction force to push the panel to move; wherein the panel has a first state and a second state, wherein in the first state, the side of the tilting rod is close to the inner side of the outer shell, and the outer surface of the panel is flush with or smoothly transitions to the outer surface of the outer shell; in the second state, the tilting rod abuts the inner side of the outer shell, and the panel tilts and retracts into the outer shell. By connecting the tilting rod to the panel, when the panel is pushed by hand, the tilting rod abuts the inner side of the outer shell to cause the tilting rod to tilt, and the panel is pushed by using the principle of leverage, which is more labor-saving and makes pushing by hand more convenient.

Description

Technical Field

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

[0002] In order to facilitate the opening of the refrigerator, a handle is generally provided on the door body. The handle is generally a visible handle provided on the door body, and most of them are fixed and inactive structures. The poor matching structure of the handle and the door body can easily affect the aesthetic appearance of the entire refrigerator. Moreover, the handle is installed on the surface of the door body, which takes up a part of the space, and dust and other debris can easily fall on the handle, making the handle easily dirty and requiring frequent cleaning. In order to solve the above problems, the related art adopts a hidden handle design, in which a groove is provided on the door body, a handle panel is provided in the groove, and a sliding shaft is used to guide the movement of the handle panel. However, in the process of pushing the handle panel to reveal the buckle position, since the force point of the handle panel is far away from the sliding shaft, it is difficult to apply force, resulting in inconvenience in use and a poor user experience. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a door assembly that can be pushed more labor-savingly and improve user experience.

[0004] The present invention also provides a refrigerator having the door assembly.

[0005] According to an embodiment of the first aspect of the present invention, the door assembly includes: an outer shell, a panel, a guide assembly and a tilting rod, the outer shell is provided with a handle groove, and the handle groove has an opening; the panel is located at the opening; the guide assembly is used to guide the panel to move axially along the opening; one end of the tilting rod is connected to the panel, and the other end is used to abut the outer shell to provide a reaction force to push the panel to move; wherein, the panel has a first state and a second state, in the first state, the side of the tilting rod is close to the inner side of the outer shell, and the outer surface of the panel is flush with or smoothly transitions to the outer surface of the outer shell; in the second state, the tilting rod abuts the inner side of the outer shell, and the panel is tilted and retracted in the outer shell.

[0006] The door assembly according to the embodiment of the present invention has at least the following beneficial effects: by connecting a tilting rod to the panel, when the panel is pushed by hand, the tilting rod abuts against the inner side of the outer shell to make the tilting rod tilt up, and the panel is pushed using the lever principle, which saves more effort and makes pushing by hand more convenient.

[0007] According to some embodiments of the present invention, the guide assembly includes a sliding shaft and a slider, the slider is slidably connected to the sliding shaft, and the tilting rod is rotatably connected to the slider.

[0008] According to some embodiments of the present invention, the door assembly further comprises a driving device, which drives the slider to slide.

[0009] According to some embodiments of the present invention, the door assembly further includes a detection assembly, and when the driving device drives the slider to move toward the opening, the detection assembly is used to detect whether the panel is tilted.

[0010] According to some embodiments of the present invention, the detection component includes a magnet and a Hall sensor, the magnet is provided on the slider, the Hall sensor is provided on the panel, and the Hall sensor is used to sense a magnetic signal of the magnet.

[0011] According to some embodiments of the present invention, a return spring is connected between the slider and the tilting lever.

[0012] According to some embodiments of the present invention, the door assembly further includes a fixed bracket and a lever, wherein the fixed bracket is connected to the inner side of the handle groove, and one end of the lever is rotatably connected to the fixed bracket and the other end is connected to the panel.

[0013] According to some embodiments of the present invention, the door assembly further includes a driving device, which drives the shifting rod to rotate.

[0014] According to some embodiments of the present invention, the shifting rod is connected to the fixed bracket via a rotating shaft, the driving device includes a motor, and the output shaft of the motor is connected to the rotating shaft via a rotating shaft connecting sleeve.

[0015] According to some embodiments of the present invention, the shift lever is connected to the fixed bracket via a rotating shaft, the driving device includes a motor, the output shaft of the motor is connected to a driving gear, the rotating shaft is connected to a driven gear, and the driving gear is engaged with the driven gear.

[0016] According to some embodiments of the present invention, the guide assembly includes a sliding shaft and a slider, the slider is slidably connected to the sliding shaft, the tilting rod is rotatably connected to the slider, the slider is provided with a guide boss, and one end of the shift rod is provided with a guide waist-shaped hole or a guide waist-shaped groove that cooperates with the guide boss.

[0017] According to some embodiments of the present invention, the guide assembly includes a sliding shaft and a slider, the slider is slidably connected to the sliding shaft, the tilting rod is rotatably connected to the slider, one end of the shift rod is provided with a guide boss, and the slider is provided with a guide waist-shaped hole or a guide waist-shaped groove that cooperates with the guide boss.

[0018] A refrigerator according to an embodiment of a second aspect of the present invention includes the door assembly according to the embodiment of the first aspect of the present invention.

[0019] The refrigerator according to the embodiment of the present invention has at least the following beneficial effects: by adopting the door assembly of the embodiment of the first aspect of the present invention, a lifting rod is connected to the panel. When the panel is pushed by hand, the lifting rod abuts against the inner side of the outer shell to make the lifting rod lift up, and the panel is pushed using the lever principle, which saves more effort and makes pushing by hand more convenient.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1 A schematic diagram of a refrigerator according to an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of another embodiment of a refrigerator according to an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of another embodiment of a refrigerator according to an embodiment of the present invention;

[0025] Figure 4 for Figure 1 A front view of an embodiment of a door assembly is shown (door body omitted);

[0026] Figure 5 for Figure 4 A perspective view of the door assembly is shown;

[0027] Figure 6 for Figure 4 A schematic diagram showing the door assembly in an initial state;

[0028] Figure 7 for Figure 4 A schematic diagram showing the door assembly in an intermediate state;

[0029] Figure 8 for Figure 4 A schematic diagram of the door assembly is shown in its completed state;

[0030] Figure 9 for Figure 1 A schematic diagram of another embodiment of a door assembly is shown (door body omitted);

[0031] Figure 10 for Figure 1 A schematic diagram of another embodiment of a door assembly is shown (door body omitted);

[0032] Figure 11 for Figure 5 A schematic diagram showing the connection between a panel and a lever according to an embodiment of the present invention;

[0033] Figure 12 for Figure 5 A schematic diagram showing the connection between the panel and the lever in another embodiment;

[0034] Figure 13 for Figure 1 A schematic diagram of another embodiment of a door assembly is shown (door body omitted);

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

[0036] Figure 15 for Figure 13 A schematic diagram showing another state of the door assembly;

[0037] Figure 16 for Figure 13 A schematic diagram showing the door assembly in an initial state;

[0038] Figure 17 for Figure 13 A schematic diagram showing the door assembly in an intermediate state;

[0039] Figure 18 for Figure 16 a cutaway view of the door assembly shown;

[0040] Figure 19 for Figure 17 a cutaway view of the door assembly shown;

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

[0042] Figure 21 for Figure 17 A schematic diagram of an additional detection component of the door assembly is shown;

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

[0044] Figure 23 for Figure 22 A schematic diagram showing the door assembly in an initial state;

[0045] Figure 24 for Figure 22 Schematic diagram showing a compression spring in a critical state;

[0046] Figure 25 for Figure 22 A schematic diagram showing the door assembly in an intermediate state;

[0047] Figure 26 for Figure 22 A schematic diagram of the door assembly is shown in its completed state;

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

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

[0050] Figure 29 for Figure 28 A schematic diagram showing the door assembly in a critical state;

[0051] Figure 30 for Figure 28 A schematic diagram of the door assembly is shown in its completed state;

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

[0053] Figure 32 for Figure 31 A schematic diagram showing the door assembly in a critical state;

[0054] Figure 33 for Figure 31 A schematic diagram showing the door assembly in an intermediate state;

[0055] Figure 34 for Figure 31 A schematic diagram of the door assembly is shown in its completed state;

[0056] Figure 35 for Figure 1 A schematic diagram of another embodiment of a 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 A schematic diagram showing the door assembly in an initial state;

[0059] Figure 38 for Figure 35 A schematic diagram showing the door assembly in an intermediate state;

[0060] Figure 39 for Figure 35 A schematic diagram of the door assembly shown in a completed state in a hand-pushing scenario;

[0061] Figure 40 for Figure 35 A schematic diagram of the door assembly shown in a completed state in an electrically controlled scenario;

[0062] Figure 41 for Figure 1 A schematic diagram showing a door assembly of another embodiment in an initial state;

[0063] Figure 42 for Figure 41 A schematic diagram of the door assembly is shown in its completed state;

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

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

[0066] Figure 45 for Figure 43 The door assembly shown is a schematic diagram omitting the fixing bracket;

[0067] Figure 46 for Figure 44 A partial cross-sectional view of an embodiment of a shutter is shown;

[0068] Figure 47 for Figure 43 A schematic diagram of the door assembly (with the door body) shown is in an initial state;

[0069] Figure 48 for Figure 46 The AA cross-sectional view shown in Figure 47 Schematic diagram of the state;

[0070] Figure 49 for Figure 46 The BB cross-sectional view shown in Figure 47 Schematic diagram of the state;

[0071] Figure 50 for Figure 43 A schematic diagram of the door assembly (with the door body) shown in an intermediate state;

[0072] Figure 51 for Figure 46 The AA cross-sectional view shown in Figure 50 Schematic diagram of the state;

[0073] Figure 52 for Figure 46 The BB cross-sectional view shown in Figure 50 Schematic diagram of the state;

[0074] Figure 53 for Figure 43 A schematic diagram of the door assembly (with the door body) shown in a completed state;

[0075] Figure 54 for Figure 46 The AA cross-sectional view shown in Figure 53 Schematic diagram of the state;

[0076] Figure 55 for Figure 46 The BB cross-sectional view shown in Figure 53 Schematic diagram of the state;

[0077] Figure 56 43 is a schematic diagram of another embodiment of a switch;

[0078] Figure 57 43 is a schematic diagram of another embodiment of a switch;

[0079] Figure 58 A flow chart of an embodiment of a method for controlling a door assembly according to an embodiment of the present invention;

[0080] Figure 59 A flow chart of another embodiment of a method for controlling a door assembly according to an embodiment of the present invention;

[0081] Figure 60 A flow chart of another embodiment of a method for controlling a door assembly according to an embodiment of the present invention;

[0082] Figure 61 A flow chart of another embodiment of a method for controlling a door assembly according to an embodiment of the present invention;

[0083] Figure 62 A flow chart of another embodiment of a method for controlling a door assembly according to an embodiment of the present invention;

[0084] Figure 63 A flow chart of another embodiment of a method for controlling a door assembly according to an embodiment of the present invention;

[0085] Figure 64 The present invention is a flowchart of another embodiment of the method for controlling a door assembly according to the present invention.

[0086] Reference numerals:

[0087] 101. Door body; 102. Panel;

[0088] 301, drawer;

[0089] 401, fixed bracket; 402, lever;

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

[0091] 601, limit block;

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

[0093] 1001, shaft connecting sleeve;

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

[0095] 1301, tilting rod; 1302, guide waist groove;

[0096] 1401, slider; 1402, pin; 1403, return spring;

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

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

[0099] 2201, indicator line; 2202, center line; 2203, rotation center;

[0100] 2601, first tension spring;

[0101] 3001, first torsion spring;

[0102] 3401, clutch mechanism;

[0103] 3501, convex part; 3502, concave part; 3503, rotation gap;

[0104] 4001, handle slot; 4002, opening; 4003, handle slot portion; 4004, movable slot portion; 4005, light source;

[0105] 4201, grip portion; 4202, first connecting portion;

[0106] 4301, rear cover; 4302, shutter;

[0107] 4401, second connecting portion;

[0108] 4501, push rod; 4502, housing; 4503, slide; 4504, second compression spring; 4505, guide slot;

[0109] 4701, rotating part; 4702, limiting groove; 4703, limiting part;

[0110] 4801, sliding portion; 4802, first stop position; 4803, second stop position;

[0111] 5401, guide slope;

[0112] 5501, second tension spring;

[0113] 5601, second torsion spring. DETAILED DESCRIPTION

[0114] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0115] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0116] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0117] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0118] Reference Figure 1 It is understood that the refrigerator of the embodiment of the present invention can be a single-door refrigerator, including a door body 101, the door body 101 includes an outer shell (not shown in the figure) and an inner tank (not shown in the figure), and the outer side of the outer shell is provided with a handle groove 4001 (refer to Figure 41 ), that is, a handle groove 4001 is provided on the side of the housing facing the user. The handle groove 4001 has an opening 4002. A panel 102 is provided at the opening 4002. The panel 102 is movable relative to the opening 4002, thereby concealing or opening the opening 4002. The door body 101 and the panel 102 form part of the door assembly. The panel 102 and the handle groove 4001 cooperate to form a handle structure, which can realize the switching of the handle structure between an in-use state and a concealed state.

[0119] Reference Figure 2It can be understood that the refrigerator in the embodiment of the present invention can also be a double-door refrigerator, including two door bodies 101, and the outer shell of each door body 101 is provided with a handle groove 4001, and the opening 4002 of the handle groove 4001 is provided with a panel 102, thereby forming a handle structure on each door, and the handle structure can be switched between the use state and the hidden state.

[0120] It should be noted that, in a double-door refrigerator, the door assembly structure of the embodiment of the present invention may be used on only one door, and the other door may use other types of handle structures, which is not limited here.

[0121] Reference Figure 3 It can be understood that the refrigerator of the embodiment of the present invention can also be a multi-door refrigerator, that is, it has a door body 101 and a drawer 301. Opening the door body 101 or the drawer 301 can realize the function of opening the door. The outer shell of the door body 101 and the drawer 301 are both provided with a handle groove 4001, and the opening 4002 of the handle groove 4001 is provided with a panel 102, thereby forming a handle structure on the door body 101 and the drawer 301, and the handle structure can be switched between the use state and the hidden state.

[0122] It should be noted that the door assembly structure of the embodiment of the present invention may be used only in the drawer 301, and the door body 101 may use other types of handle structures, which is not limited here.

[0123] Reference Figure 4 and Figure 5It is understood that the door assembly of the embodiment of the present invention further 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. Through such a design, the panel 102 can swing around the hinge point between the lever 402 and the fixed bracket 401, thereby allowing the panel 102 to telescopically move 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. The outer surface of the panel 102 and the outer surface of the outer shell tend to be integrated in appearance, without obvious protrusions or depressions, making the refrigerator neat and beautiful in appearance. In the second state, the panel 102 can be retracted within the handle groove 4001, revealing the handle groove 4001. The user can then reach into the handle groove 4001 and pull the door 101 or drawer 301 to open the refrigerator. In the second state, the panel 102 can also be extended beyond the handle groove 4001, allowing the user to grasp the panel 102 protruding from the opening 4002 and pull the door 101 or drawer 301 to open the refrigerator. Using the lever 402 to drive the panel utilizes the space along the length of the refrigerator door, reducing the space occupied along the thickness, and improving space utilization.

[0124] It can be understood that the axial direction of the opening 4002 refers to the direction perpendicular to the shell plane where the opening 4002 is located, including the direction close to the perpendicular to the shell plane where the opening 4002 is located. Figure 6 In other words, the axial movement of the panel 102 along the opening 4002 is an overall translational movement, not a flipping movement.

[0125] It should be noted that in one embodiment, in the first state, the panel 102 is at the lowest point of its natural swing, that is, the panel 102 is directly below the hinge point between the lever 402 and the fixed bracket 401, and the lever 402 is in a naturally hanging position. Correspondingly, in the second state, the panel 102 is tilted upward. This allows the panel 102 to automatically return to a hidden position after being moved by the user. In another embodiment, in the second state, the panel 102 is at the lowest point of its natural swing, corresponding to the upward tilt in the first state. In this case, a retaining structure can be provided at the edge of the opening 4002 to maintain the panel 102 in the hidden position, such as a magnetic structure to attract the panel 102 to the opening 4002. Alternatively, a damping structure can be provided at the hinge point between the lever 402 and the fixed bracket 401 to dampen the panel 102 when it rotates to the opening 4002, preventing it from naturally disengaging from the opening 4002.

[0126] Reference Figure 5 and Figure 6 It will be appreciated that the door assembly of the embodiment of the present invention further includes a sliding shaft 501, both ends of which are fixedly connected to the fixed bracket 401, the panel 102 is slidably connected to the sliding shaft 501, and the lever 402 is rotatably connected to the panel 102. The provision of the sliding shaft 501 allows the panel 102 to move along a predetermined trajectory, resulting in smoother movement and smoother switching between the first and second states. Furthermore, the panel 102 can be conveniently positioned on the sliding shaft 501.

[0127] It should be noted that the sliding shaft 501 can also be replaced by guide components such as slide rails and slide grooves. These guide components are connected to the panel 102 to guide the panel 102 to move telescopically along the axial direction of the opening 4002.

[0128] Reference Figure 5 and Figure 6It is understood that there are two levers 402, which are connected to the fixed bracket 401 via the rotation axis 903 and are connected to both ends of the panel 102. This ensures that the force on the panel 102 is more balanced and prevents it from tilting during the back-and-forth swinging process. In addition, the panel 102 includes a baffle portion 502 and two third connecting portions 503. The baffle portion 502 is arranged along an axis parallel to the rotation axis 903 and is used to close the opening 4002. The two third connecting portions 503 are connected to one side of the baffle portion 502 at intervals and are arranged along an axis perpendicular to the rotation axis 903. Each lever 402 is connected to one third connecting portion 503, that is, the lever 402 is connected to the baffle portion 502 via the third connecting portion 503. Thus, in the first state, the lever 402 drives the baffle portion 502 to move to the opening 4002 through the third connecting portion 503, so that the outer surface of the baffle portion 502 is flush with or smoothly transitions to the outer surface of the shell; in the second state, the lever 402 drives the baffle portion 502 to move into the handle groove 4001 through the third connecting portion 503, so that the baffle portion 502 is retracted into the shell.

[0129] It should be noted that the third connection portion 503 may also be inclined at an angle to the axis of the rotating shaft 903, that is, not perpendicular, as long as it is set in a direction away from the back of the baffle portion 502, that is, in a backward direction.

[0130] It can be understood that the third connecting portion 503 and the baffle portion 502 are offset in the front-to-back direction and are not located on the same plane, so that the third connecting portion 503 can be located in the handle groove 4001, reducing the possibility of interference between the panel 102 and the fixed bracket 401 during movement.

[0131] Reference Figures 6 to 8 It can be understood that during the transition from the hidden state to the active state, the panel 102 undergoes three state transitions: an initial state, an intermediate state, and a final state. The fixed bracket 401 is provided with two limit blocks 601, located at either end of the sliding shaft 501. The limit blocks 601 limit the swinging motion of the lever 402, defining the initial and final states of the panel 102.

[0132] Reference Figure 6 It can be understood that the panel 102 is in an initial state, that is, in a first state, and the user is located in front of the panel 102.

[0133] Reference Figure 7 It can be understood that the panel 102 is in the middle state, and the user pushes the panel 102 so that the panel 102 moves toward the rear, so that the housing begins to reveal the handle groove 4001.

[0134] Reference Figure 8It can be understood that the panel 102 is in a completed state, and the panel 102 moves to the rear extreme position, completely revealing the handle groove 4001. At this time, the user can reach into the handle groove 4001 and pull the door body 101 or the drawer 301 to open the refrigerator.

[0135] It should be noted that the second state mentioned above may refer to an intermediate state and a completed state.

[0136] Reference Figure 9 In one embodiment, the door assembly of the embodiment of the present invention further includes a motor 901, which is fixed to a fixed base frame. One or more motors 901 can be used. A driving gear 902 is fixedly connected to the output shaft of the motor 901. The shift lever 402 is connected to the fixed bracket 401 via a rotating shaft 903. A driven gear 904 is connected to the rotating shaft 903. The driving gear 902 and the driven gear 904 are meshed with each other. One end of the shift lever 402 is fixed to the rotating shaft 903. The shift lever 402 and the rotating shaft 903 do not move relative to each other, while the rotating shaft 903 is rotatably connected to the fixed bracket 401, so that the shift lever 402 and the rotating shaft 903 swing back and forth around the axis of the rotating shaft 903. When the motor 901 rotates, the panel 102 swings back and forth through the transmission of the driving gear 902, the driven gear, the rotating shaft 903 and the shift lever 402, that is, it moves telescopically along the axial direction of the opening 4002.

[0137] Reference Figure 10 In another embodiment, the door assembly of the embodiment of the present invention further includes a motor 901, which is fixed to a fixed base frame. One or more motors 901 can be used. The lever 402 is connected to the fixed bracket 401 via a rotating shaft 903. The output shaft of the motor 901 and the rotating shaft 903 are connected via a rotating shaft connecting sleeve 1001 to achieve rotational transmission. One end of the lever 402 is fixed to the rotating shaft 903. The lever 402 and the rotating shaft 903 do not move relative to each other, while the rotating shaft 903 is rotationally connected to the fixed bracket 401, so that the lever 402 and the rotating shaft 903 swing back and forth together around the axis of the rotating shaft 903. When the motor 901 rotates, the panel 102 swings back and forth through the transmission of the rotating shaft connecting sleeve 1001, the rotating shaft 903 and the lever 402, that is, it telescopically moves along the axial direction of the opening 4002.

[0138] By reference Figure 9 and Figure 10In this way, a driving device is added, which drives the lever 402 to rotate, thereby opening and closing the door body 101, making the operation convenient. In addition, it can also be used in conjunction with a sensor to achieve human-machine interaction, improve the technological sense of the product, and meet the needs of refrigerators with a youthful, intelligent, technological sense and beautiful door handles. For example, there is no need for human hands to touch the panel 102. When a person approaches the door body 101, the sensor senses the target signal and controls the motor 901 to rotate, so that the panel 102 is in a completed state, revealing the handle groove 4001.

[0139] It should be noted that, in addition to Figure 9 and Figure 10 The driving device outside the driving rod 402 drives the driving rod 402 to rotate.

[0140] Reference Figure 11 It is understood that a guide boss 1101 is provided at one end of the lever 402, and a guide waist-shaped hole 1102 is provided on the panel 102. The guide waist-shaped hole 1102 is provided in the vertical direction. The guide waist-shaped hole 1102 or the guide waist-shaped groove 1302 cooperates with the guide boss 1101, so that when the panel 102 swings back and forth, the guide boss 1101 can move relative to the guide waist-shaped hole 1102 in the vertical direction. In particular, in conjunction with the sliding shaft 501, it can better keep the panel 102 moving in the horizontal direction rather than moving relative to each other, making the panel 102 slide more smoothly and reducing the space required for the panel 102 in the vertical direction, that is, reducing the height of the handle groove 4001 in the vertical direction, making the structure more compact.

[0141] Reference Figure 12 It is understandable that it can also be set as follows: the panel 102 is provided with a guide boss 1101, and one end of the lever 402 is provided with a guide waist-shaped hole 1102 that cooperates with the guide boss 1101. That is, Figure 12 The plan and Figure 11 Compared with the solution of FIG, the positions of the guide boss 1101 and the guide waist hole 1102 are interchanged.

[0142] Reference Figures 13 to 15 It is understood that the door assembly of the embodiment of the present invention can also be configured to include a housing (not shown), a panel 102, a sliding shaft 501, and a tilting lever 1301, wherein the housing is provided with a handle groove 4001, the handle groove 4001 having an opening 4002, the panel 102 is disposed at the opening 4002, and the panel 102 is guided by the sliding shaft 501 to telescopically move along the axial direction of the opening 4002. One end of the tilting lever 1301 is connected to the panel 102, and the other end of the tilting lever 1301 is used to abut the housing to provide a reaction force to push the panel 102 to move.

[0143] Reference Figure 16, it can be understood that, when the panel 102 is in the initial state, the side of the tilting rod 1301 is close to the housing, that is, close to the inner wall of the handle groove 4001, and the user pushes the panel 102 from the front of the panel 102. Since the position where the user applies force is far away from the position of the sliding shaft 501, if the panel 102 is stuck and cannot move smoothly 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, while the end of the panel 102 away from the sliding shaft 501 has a tendency to move toward the rear of the panel 102, causing the panel 102 to have a tendency to tilt. For details, refer to Figure 17 As shown. Figure 17 In the state shown, one end of the tilting rod 1301 abuts against the outer shell, that is, against the inner wall of the handle groove 4001. The end of the tilting rod 1301 abutting against the outer shell remains stationary at the beginning, 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 panel 102 moves backward as a whole to reveal the handle groove 4001. The user can reach into the handle groove 4001 and pull the door body 101 or drawer 301 to open the refrigerator.

[0144] It is understood that a sliding hole can be provided on the panel 102 or the tilting 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, thereby allowing the panel 102 to tilt. Alternatively, the sliding shaft 501 can be replaced by a sliding groove, with a protrusion provided on the panel 102 or the tilting lever 1301. The protrusion slides along the sliding groove to move the panel 102. The protrusion can be configured as a circular shaft, or the width of the sliding groove can be greater than the height of the protrusion, thereby allowing the panel 102 to tilt.

[0145] Reference Figure 14 It is understood that the door assembly of the embodiment of the present invention further includes a slider 1401, which is slidably connected to the sliding shaft 501, and the tilting rod 1301 is rotatably connected to the slider 1401, so that the slider 1401 can slide along the sliding shaft 501 to drive the panel 102 to move, and does not affect the tilting rod 1301 from rotating to contact the housing to generate a force to push the panel 102 to move along the axial direction of the sliding shaft 501. Specifically, a pin 1402 is provided on the tilting rod 1301, and a pin hole (not shown in the figure) is provided on the slider 1401. The pin 1402 is inserted into the pin hole, so that the tilting rod 1301 can rotate around the slider 1401. The side of the tilting rod 1301 is connected to the panel 102 by screws to facilitate assembly.

[0146] Reference Figure 14It can be understood that a return spring 1403 is provided between the slider 1401 and the tilting rod 1301. One end of the return spring 1403 abuts the slider 1401, and the other end abuts the tilting rod 1301. After the tilting rod 1301 and the panel 102 are tilted and the hand releases the panel 102, the return spring 1403 can reset the panel 102 and restore it to a vertical state.

[0147] Reference Figure 15 、 Figure 18 and Figure 19 As can be understood, when a user pushes panel 102 from the front, panel 102 receives the user's push force and transmits it to lever 1301. This force causes lever 1301 to tilt near the user's point of force application, while slider 1401 remains stationary or moves slightly. After tilting, one end of lever 1301 contacts the housing, providing a backward force. This force pushes slider 1401 backward, which in turn drives panel 102 backward. This entire process utilizes the principle of leverage to push panel 102, saving effort and making manual pushing more convenient.

[0148] It is understandable that the door assembly also includes a driving device, which drives the slider 1401 to slide, thereby driving the panel 102 to move together, and realizing the switching of the handle groove 4001 between the use state and the hidden state. The door assembly may also include a detection device, which is used to detect the user's signal. After detecting the user's signal, the drive device is controlled to start. The detection trigger signal includes one of the following: gesture, voice, touch, and mechanical button. Through the cooperation of the detection device and the drive device, human-machine interaction is achieved, and the sense of technology of the product is improved. When the power is off, the tilting rod 1301 can be used to push the panel 102 to move, overcome the resistance of the drive device, and save more effort.

[0149] Reference Figure 20 , understandably, with Figure 19 Compared to the embodiment shown, Figure 20 The embodiment mainly changes the relative positions of the pin 1402 and the return spring 1403 relative to the sliding shaft 501. Specifically, as Figure 19 As shown, the pin 1402 is located on the lower side of the sliding shaft 501, and the return spring 1403 is located on the upper side of the sliding shaft 501. Figure 20 As shown, the pin 1402 is located on the upper side of the sliding shaft 501, and the return spring 1403 is located on the lower side of the sliding shaft 501. The pin 1402 serves as the fulcrum for the tilting rod 1301 to rotate around the slider 1401. By changing the fulcrum position, the force relationship in the lever structure is changed, and then the force that pushes the panel 102 is converted into the force that adjusts the tilting rod 1301. Figure 19 Compared to the embodiment shown, Figure 20In the embodiment, the position of the pin 1402 is further away from the force application point for pushing the panel 102, so that the user can push the panel 102 with less thrust.

[0150] It should be noted that, in some other embodiments, the pin 1402 and the return spring 1403 may also be located on the same side of the sliding shaft 501, which is not specifically limited here.

[0151] Reference Figure 21 It is understood that in certain specific scenarios, when the user's hand is not completely withdrawn, the driving device drives the panel 102 to return, that is, the goal is to return the panel 102 from the completed state to the initial state. If the user's hand is pinched between the panel 102 and the housing, the panel 102 is forced to tilt the lever 1301 to a certain angle a to prevent the user from being pinched.

[0152] Reference Figure 21 It is understandable 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 position of the Hall sensor 2002 is relative to that of the magnet 2001, so that the Hall sensor 2002 can sense the magnetic signal of the magnet 2001. In normal operation mode, when the tilting bar 1301 is not tilted, the Hall sensor 2002 can sense the magnetic signal of the magnet 2001. The Hall sensor 2002 outputs a signal feedback to the control chip so that the entire mechanism operates normally. In the process of the panel 102 returning to the initial state from the completed state, if the tilting bar 1301 is tilted, the magnet 2001 is separated from the Hall sensor 2002, and the Hall sensor 2002 cannot sense the magnetic signal of the magnet 2001. The control chip will receive another signal, and the control chip can control the drive device to stop running or the drive device drives the panel 102 to move in the direction away from the opening 4002, so that the pinching action is released, realizing the anti-pinch function.

[0153] It should be noted that other detection components can be used instead of the combination of magnet 2001 and Hall sensor 2002 to determine whether the hand pinching phenomenon occurs, so as to achieve further control, and no specific limitation is made here.

[0154] In addition, the driving device of the embodiment of the present invention can also be connected to the slider 1401 through the lever 402, referring to Figures 13 to 15 It is understood that the slider 1401 is provided with a guide waist groove 1302, and a corresponding guide boss 1101 is provided at one end of the lever 402, and the guide boss 1101 cooperates with the guide waist groove 1302. The specific connection method and beneficial effects of the lever 402 are referred to the above embodiment and will not be repeated here.

[0155] Reference Figure 22It is understood that the door assembly of the embodiment of the present invention can also be configured to Figure 5 Based on the solution of [ 1 ], 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 bracket 401 or the housing. The first compression spring 2101 is configured to provide forces in different directions to the lever 402 during rotation, thereby causing the lever 402 to rotate in different directions. Specifically, the fixed bracket 401 has a first mounting portion 2102, and the lever 402 has 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.

[0156] Reference Figure 23 It will be understood that when the door assembly of this embodiment of the present invention is in its initial state, the line connecting the first mounting portion 2102 and the second mounting portion 2103 is defined as the indicator line 2201. The direction of the force exerted on the lever 402 by the first compression spring 2101 and other elastic members is the same as the direction of the indicator line 2201 toward the lever 402. The line connecting the two ends of the lever 402 forms the centerline 2202. The first compression spring 2101 is located in front of the lever 402, and the first mounting portion 2102 and the second mounting portion 2103 are both located in front of the centerline 2202. In the initial state, the intersection of the indicator line 2201 and the centerline 2202 is located above the rotation center 2203 of the lever 402. At this time, the force exerted by the first compression spring 2101 on the lever 402 causes the lever 402 to rotate clockwise, thereby retaining the panel 102 in the opening 4002.

[0157] Reference Figure 24 It can be understood that the first compression spring 2101 of the embodiment of the present invention is in a critical state, and the intersection of the indicator line 2201 and the center line 2202 coincides with the rotation center 2203 of the lever 402. At this time, the force exerted by the first compression spring 2101 on the lever 402 will not cause the lever 402 to have a tendency to rotate.

[0158] Reference Figure 25 It can be understood that the door assembly of the embodiment of the present invention is in the middle state, and the intersection of the indicator 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 compression spring 2101 acting on the lever 402 causes the lever 402 to have a counterclockwise rotation trend, thereby forming a power assist to assist the user to push open the panel 102, so that the panel 102 moves backward quickly.

[0159] Reference Figure 26It can be understood that the door assembly of the embodiment of the present invention is in a completed state, and the intersection of the indicator 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 causes the lever 402 to have a tendency to rotate counterclockwise, thereby keeping the panel 102 in the completed state.

[0160] It is understood that when the door assembly of the embodiment of the present invention switches from the completed state to the initial state, as long as the panel 102 reaches Figure 24 At the critical state position shown, the force of the first compression spring 2101 will be converted from resistance to assist, helping the panel 102 to recover and remain at the opening 4002, thereby realizing the design of a hidden handle.

[0161] Reference Figures 27 to 30 It is understood that the first compression spring 2101 can be replaced by a first extension spring 2601, in which case the second mounting portion 2103 is disposed behind the centerline 2202. Of course, the first extension spring 2601 can also be replaced by an elastic member such as a rubber band or elastic cord, with similar structure and usage. The following description will take the first extension spring 2601 as an example.

[0162] Reference Figure 27 It can be understood that the door assembly of the embodiment of the present invention is in the initial state, and the intersection of the indicator 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 tension spring 2601 acting on the lever 402 causes the lever 402 to have a tendency to rotate clockwise, thereby keeping the panel 102 at the opening 4002.

[0163] Reference Figure 28 It can be understood that the first tension spring 2601 of the embodiment of the present invention is in a critical state, the intersection of the indicator line 2201 and the center line 2202 coincides with the rotation center 2203 of the lever 402, and at this time, the force exerted by the first tension spring 2601 on the lever 402 will not cause the lever 402 to have a tendency to rotate.

[0164] Reference Figure 29 It can be understood that the door assembly of the embodiment of the present invention is in the middle state, and the intersection of the indicator line 2201 and the center line 2202 is transferred to 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 causes the lever 402 to have a counterclockwise rotation trend, thereby forming a power assist to assist the user to push open the panel 102, so that the panel 102 moves backward quickly.

[0165] Reference Figure 26It can be understood that the door assembly of the embodiment of the present invention is in a completed state, and the intersection of the indicator 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 causes the lever 402 to have a tendency to rotate counterclockwise, thereby keeping the panel 102 in the completed state.

[0166] Reference Figures 31 to 34 It is understandable that the first torsion 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 in front of the center line 2202 .

[0167] Reference Figure 31 It can be understood that the door assembly of the embodiment of the present invention is in the initial state, and the intersection of the indicator 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 torsion spring 3001 acting on the lever 402 causes the lever 402 to have a tendency to rotate clockwise, thereby keeping the panel 102 at the opening 4002.

[0168] Reference Figure 32 It can be understood that the first torsion spring 3001 of the embodiment of the present invention is in a critical state, the intersection of the indicator line 2201 and the center line 2202 coincides with the rotation center 2203 of the lever 402, and at this time, the force exerted by the first torsion spring 3001 on the lever 402 will not cause the lever 402 to have a tendency to rotate.

[0169] Reference Figure 33 It can be understood that the door assembly of the embodiment of the present invention is in the middle state, and the intersection of the indicator 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 torsion spring 3001 acting on the lever 402 causes the lever 402 to have a counterclockwise rotation trend, thereby forming a power assist to assist the user to push open the panel 102, so that the panel 102 moves backward quickly.

[0170] Reference Figure 34 It can be understood that the door assembly of the embodiment of the present invention is in a completed state, and the intersection of the indicator 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 torsion spring 3001 acting on the lever 402 causes the lever 402 to have a tendency to rotate counterclockwise, thereby keeping the panel 102 in the completed state.

[0171] It should be noted that the door assembly of the embodiment of the present invention may further include structures such as a guide assembly and a drive device. The specific connection method and beneficial effects can be referred to the above embodiment and will not be repeated here.

[0172] Reference Figure 35 It is understood that the door assembly of the embodiment of the present invention can also be configured to include a housing (not shown in the figure), a panel 102, a drive device and a clutch mechanism 3401, wherein the housing is provided with a handle groove 4001, the handle groove 4001 having an opening 4002, the panel 102 is provided at the opening 4002, and the panel 102 is driven by the drive device to move along the axial direction of the opening 4002. The clutch mechanism 3401 is used to control the connection or disconnection between the drive device and the panel 102. During automatic operation, the clutch mechanism 3401 connects the drive device and the panel 102 to enable the drive device to drive the panel 102 to move, thereby achieving automated control. When a power outage or other emergency occurs and manual operation is required, the clutch mechanism 3401 disengages the drive device and the panel 102, and the movement of the panel 102 does not affect the drive device, effectively protecting the drive device such as the motor 901 from damage. Moreover, since there is no resistance from the drive device, the force required to push the panel 102 is smaller, making it easier to push the panel 102.

[0173] Reference Figure 35 It is understood that the door assembly of the embodiment of the present invention further includes a fixing bracket 401 (refer to Figure 9 ) and the lever 402. The fixed bracket 401 is connected to the inner side of the handle groove 4001. One end of the lever 402 is rotatably connected to the fixed bracket 401 via the rotating shaft 903, and the other end is connected to the panel 102. The driving device drives the rotating shaft 903 to rotate. The clutch mechanism 3401 is provided between the driving device and the rotating shaft 903. When the clutch mechanism 3401 connects the driving device and the rotating shaft 903, the driving device can drive the panel 102 to move through the rotating shaft 903 and the lever 402. When the clutch mechanism 3401 disengages the driving device and the rotating shaft 903, the user pushes the panel 102, driving the rotating shaft 903 and the lever 402 to rotate, while the driving device is unaffected, at least for a period of time.

[0174] 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 going through the lever 402. For example, the two ends of the panel 102 are rotatably connected to the outer shell, and the driving device drives the panel 102 to rotate along the front and rear directions.

[0175] Reference Figure 36It can be understood that the clutch mechanism 3401 includes a convex portion 3501 disposed on the rotating shaft 903 and a concave portion 3502 connected to the drive device. The concave portion 3502 accommodates the convex portion 3501. The width of the notch of the concave portion 3502 is greater than the maximum width of the convex portion 3501 within the concave portion 3502, resulting in a rotational gap 3503 between the concave portion 3502 and the convex portion 3501. In other words, the concave portion 3502 and the convex portion 3501 are located on the same circle, and the curvature of the concave portion 3502 is greater than that of the convex portion 3501. Due to the existence of the rotational gap 3503, the convex portion 3501 will not contact the side wall of the concave portion 3502 at certain positions, thereby preventing transmission. When one side of the convex portion 3501 in the rotational direction contacts the side wall of the concave portion 3502, the convex portion 3501 and the concave portion 3502 will rotate together, thereby achieving transmission.

[0176] It should be noted that regarding the combined structure of the protrusion 3501 and the rotating shaft 903, the protrusion 3501 can be designed as a separate part and then installed on the rotating shaft 903, or the protrusion 3501 and the rotating shaft 903 can be designed to be processed from the same blank.

[0177] Reference Figure 37 , it can be understood that the door assembly of the embodiment of the present invention is in an initial state. The driving device includes a motor 901, the output shaft of the motor 901 is connected to the driving gear 902, the rotating shaft 903 is connected to the driven gear 904, the driving gear 902 is engaged with the driven gear 904, and the recess 3502 is provided on the driven gear 904. The user pushes the panel 102 from the front of the panel 102, and the panel 102 drives the rotating shaft 903 and the lever 402 to rotate, and the convex portion 3501 will rotate counterclockwise with the rotating shaft 903. At this time, the upper sides of the convex portion 3501 and the concave portion 3502 are in contact with each other, while the lower sides of the convex portion 3501 and the concave portion 3502 are not in contact, so the concave portion 3502 will not rotate with the convex portion 3501.

[0178] Reference Figure 38 It can be understood that the door assembly of the embodiment of the present invention is in an intermediate state. Since only the convex portion 3501 rotates and the concave portion 3502 remains stationary, there is no contact between the two sides of the convex portion 3501 and the concave portion 3502, and the rotation of the convex portion 3501 is not resisted by the motor 901.

[0179] Reference Figure 39 It can be understood that when the door assembly of this embodiment of the present invention is in the completed state, the lower sides of the convex portion 3501 and the concave portion 3502 abut each other, while a large gap exists between the upper sides of the convex portion 3501 and the concave portion 3502. When the door assembly returns from the completed state to the initial state, the convex portion 3501 does not drive the concave portion 3502 to rotate. In other words, the rotation of the convex portion 3501 is not resisted by the motor 901.

[0180] Reference Figure 40 It is understood that the door assembly of the embodiment of the present invention is in a completed state, but Figure 39 The status is different. Figure 40 The panel 102 is driven by the motor 901 from Figure 37 During this process, the driven gear 904 drives the convex portion 3501 and the rotating shaft 903 to rotate via the concave portion 3502, with the upper sides of the convex portion 3501 and the concave portion 3502 maintaining contact. When the door assembly returns from the completed state to the initial state, the driven gear 904 first idles for a certain angle to eliminate the gap between the convex portion 3501 and the lower side of the concave portion 3502, allowing the convex portion 3501 and the lower side of the concave portion 3502 to abut, allowing the motor 901 to drive the rotating shaft 903 to rotate.

[0181] 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 recess 3502 is provided on the rotating shaft connecting sleeve 1001, and the protrusion 3501 is provided on the rotating shaft 903, which can also achieve the clutch effect.

[0182] 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 driving device transmits power to the driven plate through the friction between the driving plate and the pressure plate and the driven plate. The driving device and the panel 102 are separated or engaged by controlling whether the driven plate and the driving plate are engaged.

[0183] Reference Figure 35 It can be understood that the door assembly of the embodiment of the present invention further includes a guide assembly such as a sliding shaft 501 to better guide the movement of the panel 102.

[0184] It is understandable that, since in the initial state, the first compression spring 2101 presses the panel 102 against the opening 4002, when the user pushes the panel 102 open, the force of the first compression spring 2101 needs to be overcome, causing the first compression spring 2101 to compress and transition to a critical state. Only then can the first compression spring 2101 release its elastic potential energy, forming an assistive force to help the user push open the panel 102. Therefore, in the distance from the initial state to the critical state, the force generated by the first compression spring 2101 is the resistance to the user pushing open the panel 102. By combining it with the tilting rod 1301, when the panel 102 is pushed by hand, the end edge of the tilting rod 1301 abuts against the inner side of the housing, causing the tilting rod 1301 to tilt up. The lever principle is used to push the panel 102, which is more labor-saving, helps overcome the elastic force of the first compression spring 2101 during the transition process, and improves the user experience. Moreover, after the panel 102 passes the critical state, the thrust of the tilting rod 1301 is reduced, while the assisting effect of the first compression spring 2101 is enhanced, so that during the whole process, the shortcomings of only the first compression spring 2101 or only the tilting rod 1301 can be overcome, forming a complementary effect.

[0185] It is understandable that, in the event of a power outage, if the panel 102 is pushed with the help of the tilting lever 1301, when the hand push force is large, the drive device such as the motor 901 is connected to the panel 102, which can easily cause damage to the drive device. By combining the clutch mechanism 3401, when the panel 102 is pushed by hand, the clutch mechanism 3401 disengages the drive device and the panel 102, effectively protecting the motor 901 from damage. Moreover, since there is no resistance from the drive device, the force required to push the panel 102 is smaller, making it easier to push the panel 102. In addition, since the clutch mechanism 3401 has a gap, when pushing the panel 102, if the point of application is far away, the force transmitted is small, and the panel 102 may become stuck. By combining the tilting lever 1301, the panel 102 can be pushed by hand, and the lever principle can be used to push the panel 102, which is more labor-saving and also reduces the possibility of getting stuck.

[0186] It is understandable that, in the initial state, the clutch mechanism 3401 causes the driving device and the panel 102 to disengage, and the panel 102 is free from the restriction of the driving device, making the panel 102 easy to shake and a certain offset occurs, that is, the position of the panel 102 is difficult to maintain at the opening 4002, resulting in poor hiding effect. In addition, since the clutch mechanism 3401 has a gap, when pushing the panel 102, if the point of force is far away and the force transmitted is small, the panel 102 may become stuck. By combining it with the first compression spring 2101, in the initial state, the first compression spring 2101 presses the panel 102 tightly at the opening 4002, thereby improving the hiding effect. In addition, since there is no resistance from the driving device and the elastic member provides assistance, the force required to push the panel 102 is smaller, making it easier to push the panel 102 and reducing the possibility of getting stuck.

[0187] Reference Figure 41 and Figure 42 It can be understood that the handle groove 4001 includes a hand-grip groove portion 4003 and a movable groove portion 4004. The hand-grip groove portion 4003 and the movable groove portion 4004 are connected, and the opening 4002 and the movable groove portion 4004 are connected. The panel 102 is located in the movable groove portion 4004. The movable groove portion 4004 accommodates the panel 102 to move along the axial direction of the opening 4002. When a hand is inserted into the opening 4002 and then enters the hand-grip groove portion 4003, the door body 101 can be pulled.

[0188] Reference Figure 41 and Figure 42 It can be understood that the door assembly of the embodiment of the present invention also includes a light source 4005, which is used to illuminate the hand latch groove 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 latch groove 4003 is located, indicating the position of the hand latch groove 4003, making it convenient for users to use and improving the user experience.

[0189] Reference Figure 41 and Figure 42 It can be understood that the light source 4005 is arranged on the inner wall of the hand-grip groove 4003 and is located on the side of the hand-grip groove 4003 away from the panel 102, that is, away from the side of the movable groove 4004. By moving the light source 4005 away from the panel 102, it is difficult for human hands to touch the light source 4005, and the position of the hand-grip groove 4003 can be better indicated.

[0190] It is understood that the outer surface of the light source 4005 is flush with the inner wall of the hand grip groove 4003 to prevent accidental touching. The inner wall of the hand grip 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 of the hand grip groove 4003. This can illuminate the hand grip groove 4003 while preventing a person from accidentally touching the light source 4005 by reaching into the hand grip groove 4003.

[0191] It is understood that the housing can be made of a translucent material, such as glass. By using a translucent material, the light emitted by the light source 4005 can pass through the housing, making it easier for the user to quickly find the position of the hand grip groove 4003, thereby eliminating the need to feel around to find the position of the hand grip groove 4003.

[0192] Reference Figure 41 It is understood that the door assembly of the embodiment of the present invention is in an initial state. At this time, the outer surface of the panel 102 is flush with or smoothly transitions to the outer surface of the housing, and the light source 4005 remains in an off state.

[0193] Reference Figure 42 It can be understood that the door assembly of the embodiment of the present invention is in a completed state. At this time, the panel 102 is retracted into the movable groove portion 4004 to reveal the hand latch groove portion 4003. The light source 4005 is turned on to illuminate the hand latch groove portion 4003 and the movable groove portion 4004, so that the user can easily see the position of the hand latch groove portion 4003.

[0194] It is understood that the light source 4005 can be used in conjunction with a detection element such as a travel switch to provide convenience. For example, the travel switch is set in the movement path of the panel 102. When the user pushes the panel 102 toward the interior of the movable groove 4004, or the driving device drives the panel 102 toward the interior of the movable groove 4004, the travel switch is triggered, controlling the light source 4005 to turn on.

[0195] Reference Figure 43 and Figure 45It can be understood that the panel 102 includes a grip portion 4201, two first connection portions 4202, and two second connection portions 4401. The grip portion 4201 is arranged along an axis parallel to the rotation axis 903. The two first connection portions 4202 are respectively connected to the two ends of the grip portion 4201 and are arranged along an axis perpendicular to the rotation axis 903. The two ends of the second connection portion 4401 are respectively connected to the first connection portion 4202 and the lever 402 and are arranged along an axis parallel to the rotation axis 903. The grip portion 4201 is used to protrude from the opening 4002 and be gripped by the user outside the housing. The second connection portion 4401 is used to connect to the lever 402 to transmit power, and the first connection portion 4202 is used to connect the grip portion 4201 and the second connection portion 4401, forming the shape of a handle as a whole.

[0196] It is understandable that the first connection portion 4202 only needs to be arranged in a direction away from the back of the gripping portion 4201, that is, arranged backward, and no specific limitation is made here.

[0197] Reference Figure 44 It can be understood that the fixing bracket 401 is provided with a rear cover 4301, and the rear cover 4301 is provided with a shutter 4302. Figure 46 It is understood that the shutter 4302 includes a retractable push rod 4501, which is disposed between the panel 102 and the fixed bracket 401. When the push rod 4501 is in a retracted state, the entire panel 102 can be normally retracted into the handle groove 4001. When the push rod 4501 is in an extended state, the grip portion 4201 and a portion of the first connecting portion 4202 are pushed out of the handle groove 4001, forming a shape suitable for the user to grasp.

[0198] Reference Figures 46 to 55As can be understood, the shutter 4302 includes a housing 4502, a slide 4503, and a second compression spring 4504. The housing 4502 is provided with a closed guide slot 4505 having a first stop 4802 and a second stop 4803. The slide 4503 is positioned between the guide slot 4505 and the push rod 4501. One end of the slide 4503 is provided with a sliding portion 4801, which is positioned within the guide slot 4505. The housing 4502 is provided with a guide hole, through which the push rod 4501 is inserted (not shown). The second compression spring 4504 is connected to the push rod 4501 and the housing 4502 at both ends. The push rod 4501 telescopically moves along the axial direction of the guide hole, thereby compressing or extending the second compression spring 4504. Push rod 4501 is provided with a rotating portion 4701, which is rotatably connected to slide 4503. The axis of rotating portion 4701 is perpendicular to the axis of push rod 4501. Push rod 4501 is rotatably connected to slide 4503 via rotating portion 4701, so that movement of push rod 4501 drives movement of slide 4503, and locking of slide 4503 can limit the movement of push rod 4501. To make the movement trajectory of slide 4503 more controllable, housing 4502 is further provided with a strip-shaped limiting groove 4702. Rotating portion 4701 is provided with limiting portion 4703, which is located within limiting groove 4702. This allows one end of slide 4503 to move linearly along limiting groove 4702 and the other end to move circularly along guide groove 4505.

[0199] Specifically, in the first state, the sliding portion 4801 is located at the first stop position 4802, maintaining the push rod 4501 in the retracted state. In the second state, the sliding portion 4801 is located at the second stop position 4803, maintaining the push rod 4501 in the extended state. In other words, both the first stop position 4802 and the second stop position 4803 can keep the sliding portion 4801 in a relatively stable state, preventing it from dislodging in the absence of external forces, thereby maintaining the push rod 4501 in a predetermined position.

[0200] Reference Figure 47 It can be understood that the door assembly of the embodiment of the present invention is in the initial state (hidden state). At this time, the outer surface of the grip portion 4201 is flush with or smoothly transitions to the outer surface of the housing. Figure 48 At this time, the push rod 4501 is retracted in the housing 4502, and the second compression spring 4504 is in a compressed state. Figure 49 , the sliding portion 4801 is located at the first stop position 4802, and the limiting portion 4703 is located at one end of the limiting groove 4702 close to the guide groove 4505. The dotted lines in the figure represent the moving paths of the sliding portion 4801 and the limiting portion 4703.

[0201] Reference Figure 50 , it can be understood that the door assembly of the embodiment of the present invention is in the intermediate state. At this time, the outer surface of the grip portion 4201 begins to extend outside the handle groove 4001. In appearance, the outer surface of the grip portion 4201 protrudes from the outer surface of the housing. Correspondingly, referring to Figure 51 At this time, the push rod 4501 is ejected 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 gripping portion 4201 extends out of the handle groove 4001. Figure 52 , which is used to press the gripping portion 4201 to push the push rod 4501 to move backward for a distance first, so that the sliding portion 4801 disengages from the first stop position 4802, and then the second compression spring 4504 acts on the push rod 4501, driving the slide 4503 to move toward the second stop position 4803.

[0202] Reference Figure 53 It can be understood that the door assembly of the embodiment of the present invention is in a completed state (in use state). At this time, the grip portion 4201 and part of the first connecting portion 4202 extend out of the handle groove 4001, making it convenient for the user to hold it. Figure 54 At this time, the push rod 4501 is in a fully extended state, and the second compression spring 4504 returns to its original state or is in a slightly compressed state. Figure 55 The sliding portion 4801 is located at the second stop position 4803 , and the limiting portion 4703 is located at the end of the limiting groove 4702 away from the guide sliding groove 4505 .

[0203] It is understood that when the door assembly needs to be restored from the completed state to the initial state, the user pushes the grip portion 4201 to move backward, compressing the second compression spring 4504, and the sliding portion 4801 moves along the Figure 55 Move in a clockwise direction from the second stop position 4803 to the first stop position 4802.

[0204] It should be noted that in the above-described exemplary embodiment, the sliding portion 4801 is limited to the first stop position 4802 by the recess formed by the guide groove 4505 itself, while the sliding portion 4801 is limited to the second stop position 4803 by the push rod 4501 abutting against the housing 4502, or by the limiting portion 4703 abutting against one end of the limiting groove 4702. In other embodiments, other embodiments may also be adopted, for example, the guide groove 4505 is not connected to the limiting groove 4702, and the sliding portion 4801 is limited to the second stop position 4803 by the sliding portion 4801 abutting against the edge of the guide groove 4505.

[0205] Reference Figure 55It can be understood that the first stop 4802 deviates from the axis of the limiting groove 4702, that is, the first stop 4802 and the axis of the limiting groove 4702 are not in a straight line. As a result, when the slide 4503 moves toward the rear, the sliding portion 4801 moves toward the side away from the axis of the limiting groove 4702, thereby disengaging from the first stop 4802. To further control the sliding direction of the sliding portion 4801, the height of the first stop 4802 on the side closer to the axis of the limiting groove 4702 is set to be greater than the height on the side away from the axis of the limiting groove 4702, thereby guiding the sliding portion 4801 to move toward the side away from the axis of the limiting groove 4702. In addition, a guide slope 5401 is provided to guide the sliding part 4801 to move from the second stop position 4803 to the first stop position 4802. The guide slope 5401 is configured to intersect with 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 reach the guide slope 5401, and then moves along the guide slope 5401 and finally falls into the first stop position 4802.

[0206] Reference Figure 56 It can be understood that the second compression spring 4504 can also be replaced by the second tension spring 5501. Specifically, a connecting end is provided on each of the push rod 4501 and the housing 4502, and the two ends of the second tension spring 5501 are respectively connected to the two connecting ends, so that different deformation amounts are generated as the push rod 4501 moves to provide a reset force. The specific movement process refers to the embodiment of the second compression spring 4504 and will not be repeated here.

[0207] It should be noted that the second tension spring 5501 can also be replaced by an elastic member such as a rubber band or an elastic rope.

[0208] Reference Figure 57 It can be understood that the second compression spring 4504 can also be replaced by a second torsion spring 5601. The two ends of the second torsion spring 5601 are respectively connected to the push rod 4501 and the shell 4502, so that different deformation amounts are generated as the push rod 4501 moves to provide a reset force. The specific movement process refers to the embodiment of the second compression spring 4504 and will not be repeated here.

[0209] It should be noted that the push rod 4501 can also be driven by a driving mechanism such as a linear motor 901.

[0210] The embodiment of the present invention provides a control method for a door assembly, which is applied to the door assembly in the above embodiment. The structure or component composition of the door assembly has been described in detail in the above embodiment and will not be repeated here. Figure 58As shown, the control method of the embodiment of the present invention includes but is not limited to step S5710, step S5720, and step S5730.

[0211] Step S5710: In response to detecting the target object, the control panel switches from the first state to the second state.

[0212] The detection device is used to detect user signals and, upon detection, activate the drive device. The drive device, via a lever control panel, telescopes along the axis of the opening. Upon detecting a user's use of the handle, the control panel protrudes from the opening or retracts within the housing. The detection trigger signal can be one of the following: gesture, voice, touch, or mechanical keystroke. The cooperation between the detection device and the drive device enables human-machine interaction, enhancing the product's technological appeal. For example, when a hand approaches the panel, the detection device, which is an infrared sensor, detects the user's proximity to a predetermined distance and sends a signal to the control chip, which activates the drive device, causing the panel to move, revealing the handle slot or extending the grip. For another example, if the detection device detects that the user's gesture matches a predetermined gesture, it sends a signal to the control chip, which activates the drive device, causing the panel to move, revealing the handle slot or extending the grip. For another example, if a hand touches the panel, the detection device senses it and sends a signal to the control chip, which activates the drive device, causing the panel to move, revealing the handle slot or extending the grip. Therefore, this embodiment does not impose any specific limitation on the type of the detection signal.

[0213] Step S5720: In response to the target object being continuously detected, maintaining the panel in the second state.

[0214] If the user is continuously detected, the handle groove remains exposed, or the grip portion is extended, so that the door assembly is in use. This will not hinder the user from opening the door, and will not cause the problem of pinching the hand, thereby improving the user experience.

[0215] Step S5730: In response to not detecting the target object, the control panel transitions from the second state to the first state.

[0216] After the detection device receives a signal that a person has left the panel, such as when a person's hand leaves the panel, or when the user is detected to be away from a set distance, the panel returns, and the outer surface of the panel becomes flush or smoothly transitions with the outer surface of the housing, restoring the hidden state.

[0217] Another embodiment of the present invention further provides a method for controlling a door assembly, such as Figure 59 As shown, the control method of the embodiment of the present invention includes but is not limited to step S5710, step S5810, step S5820, step S5830, and step S5840.

[0218] Step S5710: In response to detecting the target object, the control panel switches from the first state to the second state.

[0219] When the user's signal is detected, it means that the user is ready to open the door, and the control panel moves to facilitate user use.

[0220] Step S5810: When the target object is detected, the detection is continued; when no target object is detected, step S5820 is executed.

[0221] If the user signal is still detected, it means that the user is still using the device, and the detection continues until the user signal is no longer detected. During this period, the state of the panel does not change, that is, it remains in the second state. If the user signal is not detected, it means that the user has finished using the device, and the next step S5820 is executed.

[0222] S5820, start timing.

[0223] When no user signal is detected, the timer is started to calculate the time the user has been away.

[0224] Step S5830: When the timing reaches the first preset time, execute step S5840; otherwise, continue to detect whether the timing reaches the first preset time.

[0225] Step S5840: The control panel switches from the second state to the first state.

[0226] After the preset safety time expires, indicating the user has moved away, the control panel retracts, its outer surface flush with or smoothly transitioning to the outer surface of the housing, returning to its hidden state. By designing the first preset time as a safety time, the user has ample time to remove their hand, reducing the risk of pinching.

[0227] Another embodiment of the present invention further provides a control method for a door assembly, which is applied to Figure 35 The door assembly with clutch mechanism is shown in FIG. Figure 60 As shown, the control method of the embodiment of the present invention includes but is not limited to step S5910 and step S5920, and step S5910 and step S5920 are an embodiment of the detailed process of step S5710.

[0228] Step S5910: In response to detecting the target object, controlling the driving device to rotate forward at a first speed for a second preset time.

[0229] After the detection device receives a signal that a person is present, the driving device rotates in a forward direction at a first speed, driving the recessed portion to rotate, and one side of the recessed portion abuts against the convex portion, thereby driving the convex portion to rotate together. After the driving device continues to operate for a second preset time, the panel moves to the position of the second state.

[0230] Step S5920: Control the driving device to reverse at a second speed.

[0231] The drive mechanism rotates in the opposite direction at a second speed, and the rotation angle of the drive mechanism is a, so that the other side of the concave portion abuts the convex portion. In other words, the drive mechanism is reversed, causing the concave portion to rotate by a distance equal to the rotational gap between the concave and convex portions. Due to the rotational gap, the convex portion remains stationary. By reversing the drive mechanism, the idling time of the concave portion is reduced, shortening the panel's return journey.

[0232] It should be noted that the first speed may be equal to or different from the second speed. Since the driving device is idling when it is reversed at the second speed, the second speed may be designed to be greater than the first speed to improve efficiency.

[0233] Another embodiment of the present invention further provides a control method for a door assembly, which is applied to Figure 35 The door assembly with clutch mechanism is shown in FIG. Figure 61 As shown, the control method of the embodiment of the present invention includes but is not limited to step S6010 and step S6010, and step S6010 and step S6020 are an embodiment of the detailed process of step S5730.

[0234] Step S6010: In response to not detecting the target object, controlling the driving device to reverse at a third speed for a third preset time.

[0235] After the detection device receives a signal that a person has left, the driving device rotates in the opposite direction at a third speed. The driving device drives the concave portion to rotate, and the other side of the concave portion abuts against the convex portion, thereby driving the convex portion to rotate together. After the driving device continues to operate for a third preset time, the panel moves to the position of the first state.

[0236] Step S6020: Control the driving device to rotate forward at the fourth speed.

[0237] The drive mechanism rotates in the forward direction at a fourth speed, and the rotation angle of the drive mechanism is a, causing one side of the recess to abut the protrusion. Specifically, the forward rotation of the drive mechanism causes the recess to rotate by a distance equal to the rotational gap between the recess and the protrusion. Due to the rotational gap, the protrusion remains stationary. By rotating the drive mechanism in the forward direction, the idle rotation time of the recess is reduced, thereby shortening the time required to open the panel the next time.

[0238] It should be noted that the third speed can be equal to or different from the fourth speed. Since the driving device is idling when rotating forward at the fourth speed, the fourth speed can be designed to be greater than the third speed to improve efficiency.

[0239] Another embodiment of the present invention further provides a control method for a door assembly, which is applied to Figure 21The door assembly with clutch mechanism is shown in FIG. Figure 62 As shown, the control method of the embodiment of the present invention includes but is not limited to step S5710, step S5810, step S6110, step S6120, and step S6130.

[0240] Step S5710: In response to detecting the target object, the control panel switches from the first state to the second state.

[0241] When the user's signal is detected, it means that the user is ready to open the door, and the control panel moves to facilitate user use.

[0242] Step S5810: When the target object is detected, the detection is continued; when no target object is detected, step S6110 is executed.

[0243] Step S6110: The control panel moves toward the opening.

[0244] After the detection device receives a signal that a person has left the panel, such as when a person's hand leaves the panel, or when the user is detected to be away from a set distance, the panel returns, and the outer surface of the panel becomes flush or smoothly transitions with the outer surface of the housing, restoring the hidden state.

[0245] Step S6120: When a magnetic signal is detected, continue to execute step S6110; when no magnetic signal is detected, execute step S6130.

[0246] As the panel returns to its opening, the Hall sensor continuously senses the magnetic signal from the magnet. If it senses a magnetic signal, it indicates the panel is not tilted and is functioning normally. If it does not sense a magnetic signal, it indicates the panel has been blocked by your hand and tilted, causing the Hall sensor to separate from the magnet.

[0247] In step S6130, the control panel stops or moves away from the opening.

[0248] The control panel stops, preventing the panel and the housing from further pinching the user's hand. The control panel moves away from the opening, releasing the user's hand. Both of these functions can achieve the anti-pinch function and reduce the possibility of accidental injury to the user.

[0249] Another embodiment of the present invention further provides a method for controlling a door assembly, such as Figure 63 As shown, the control method of the embodiment of the present invention includes but is not limited to step S6210.

[0250] Step S6210: In response to a power-off restart and the panel being in the second state, the control panel switches to the first state.

[0251] During a power outage, the panel is in the process of opening or closing and may therefore be in the second position, i.e., a completed position or an intermediate position. Upon reconnection, the control panel moves to the first position, with the outer surface of the panel flush or smoothly transitioning with the outer surface of the housing, restoring the concealed state.

[0252] Another embodiment of the present invention further provides a control method for a door assembly, which is applied to Figure 41 The door assembly with clutch mechanism is shown in FIG. Figure 64 As shown, the control method of the embodiment of the present invention includes but is not limited to step S6310, step S6320, and step S6330.

[0253] Step S6310: In response to detecting the target object, the control panel switches from the first state to the second state, and controls the light source to turn on.

[0254] The detection device is used to detect a user signal. Upon detecting the user signal, it controls the activation of the driving device. The driving device uses the lever control panel to extend and retract along the axial direction of the opening. When the user's use of the handle is detected, the control panel retracts within the housing and controls the light source to turn on, thereby illuminating the area where the hand grip groove is located, indicating the location of the hand grip groove, facilitating user use, and improving the user experience. There is no requirement for the order in which the light source is activated and the panel moves.

[0255] Step S6320: In response to the continued detection of the target object, the panel is kept in the second state, and the light source is turned on.

[0256] If a user is continuously detected, the handle slot remains exposed, keeping the door assembly in use. This prevents the user from opening the door and prevents pinching, improving the user experience. Keeping the light source on also enhances the aesthetics of the door.

[0257] Step S6330: In response to not detecting the target object, the control panel switches from the second state to the first state, and controls the light source to be turned off.

[0258] After the detection device receives a signal that someone has left the panel, such as a hand leaving the panel, or detects that the user has moved a set distance away, the panel returns to its opening, and the outer surface of the panel becomes flush or smoothly transitions with the outer surface of the housing, restoring the hidden state. Furthermore, the light source is turned off, saving energy. Of course, in other embodiments, the light source can also be turned off in step S6320, and this is not a limitation here.

[0259] An embodiment of the present invention further provides a control device, which is built into a household appliance such as a refrigerator and includes one or more control processors and a memory. The following description takes one control processor and one memory as an example.

[0260] The control processor and the memory can be connected via a bus or other means. The memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory may include a high-speed random access memory and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a memory remotely arranged relative to the control processor, and these remote memories may be connected to the control device via 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.

[0261] The non-transient software program and instructions required to implement the control method applied to the control device in the above embodiment are stored in the memory. When executed by the control processor, the control method applied to the control device in the above embodiment is executed, for example, the control method described above is executed. Figure 58 Steps S5710 to S5730 of the method, Figure 59 Step S5710, step S5810 to step S5840, Figure 60 Steps S5910 to S5920 of the method, Figure 61 Steps S6010 to S6020 of the method, Figure 62 Method S5710, step S5810, step S6110 to step S6130, Figure 63 Method step S6210, Figure 64 Method steps S6310 to S6330.

[0262] One embodiment of the present invention further provides a refrigerator, comprising the control device of the above embodiment.

[0263] Since the refrigerator in this embodiment has the control device as in any of the above embodiments, the refrigerator in this embodiment has the hardware structure of the control device in the above embodiments, and can enable the control processor in the control device to call the control program of the refrigerator stored in the memory to realize the control of the control device. The specific implementation method of the refrigerator in this embodiment can refer to the above embodiments. In order to avoid redundancy, it will not be repeated here.

[0264] In addition, an embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions. The computer-executable instructions are executed by one or more control processors, for example, by a control processor, so that the one or more control processors can execute the control method in the above method embodiment, for example, execute the above described Figure 58 Steps S5710 to S5730 of the method, Figure 59 Step S5710, step S5810 to step S5840, Figure 60 Steps S5910 to S5920 of the method, Figure 61 Steps S6010 to S6020 of the method, Figure 62 Method S5710, step S5810, step S6110 to step S6130, Figure 63 Method step S6210, Figure 64 Method steps S6310 to S6330.

[0265] Those skilled in the art will appreciate that all or some of the steps and systems in the method disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some physical components or all 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 implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, and the computer-readable medium can include computer storage media (or non-transitory media) and communication media (or temporary media). As known to those skilled in the art, the term computer storage media is included in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data) and is volatile and non-volatile, removable, and non-removable. 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, disk storage, or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media typically embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0266] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. Door assembly, characterized in that, include: The housing is provided with a handle groove, wherein the handle groove has an opening; a panel located at the opening; A guide assembly, for guiding the panel to move telescopically along the axial direction of the opening; a tilting rod, one end of which is connected to the panel and the other end of which is used to abut against the housing to provide a reaction force to push the panel to move; In which, the guide assembly includes a sliding shaft and a slider, the slider is slidably connected to the sliding shaft, and the tilt rod is rotatably connected to the slider, and the panel has a first state and a second state. In the first state, the side of the tilt rod is close to the inner side of the shell, and the outer surface of the panel is flush with or smoothly transitioned to the outer surface of the shell; in the second state, the panel is subjected to a thrust and transmitted to the tilt rod, so that the panel and the tilt rod are tilted, and after the tilt rod is tilted, one end abuts the inner side of the shell to provide a backward force, and the backward force pushes the slider to move backward, thereby driving the panel to move backward, so that the panel shrinks in the shell.

2. The door assembly according to claim 1, wherein: The door assembly further includes a driving device, which drives the sliding block to slide.

3. The door assembly according to claim 2, wherein: The door assembly further includes a detection assembly, which is used to detect whether the panel is tilted when the driving device drives the slider to move toward the opening.

4. The door assembly according to claim 3, wherein: The detection component includes a magnet and a Hall sensor. The magnet is arranged on the slider, and the Hall sensor is arranged on the panel. The Hall sensor is used to sense the magnetic signal of the magnet.

5. The door assembly according to claim 1, wherein: A return spring is connected between the slider and the tilting rod.

6. The door assembly according to claim 1, wherein: The door assembly further comprises a fixed bracket and a shift rod, wherein the fixed bracket is connected to the inner side of the handle groove, and one end of the shift rod is rotatably connected to the fixed bracket, and the other end is connected to the panel.

7. The door assembly according to claim 6, wherein: The door assembly further comprises a driving device, which drives the shifting rod to rotate.

8. The door assembly according to claim 7, wherein: The shifting rod is connected to the fixed bracket via a rotating shaft. The driving device includes a motor. The output shaft of the motor is connected to the rotating shaft via a rotating shaft connecting sleeve.

9. The door assembly according to claim 7, wherein: The shift lever is connected to the fixed bracket via a rotating shaft. The driving device includes a motor. The output shaft of the motor is connected to a driving gear. The rotating shaft is connected to a driven gear. The driving gear is meshed with the driven gear.

10. The door assembly according to claim 6, wherein The sliding block is provided with a guide boss, and one end of the shifting rod is provided with a guide waist-shaped hole or a guide waist-shaped groove matched with the guide boss.

11. The door assembly according to claim 6, wherein One end of the shifting rod is provided with a guide boss, and the sliding block is provided with a guide waist-shaped hole or a guide waist-shaped groove matched with the guide boss.

12. A refrigerator, characterized in that A door assembly comprising any one of claims 1 to 11.

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