Household appliance

Abstract

A household appliance includes a cabinet and a door, the door including: a door body having a groove open toward a front surface of the door; the handle assembly is arranged in the groove, the handle assembly comprises a cover plate and a handle part, the cover plate is provided with a first side and a second side which are opposite to each other, the first side is hinged to the groove, the handle part is arranged towards the second side, and the cover plate can rotate between a first position and a second position; the stopping mechanism is arranged in the groove, and the stopping mechanism is used for keeping the cover plate at the second position; wherein the cover plate located at the first position seals the opening of the groove, and the cover plate located at the second position exposes at least one part of the opening. Through the design of the hidden handle, the handle can be hidden through the cover plate to optimize the appearance attractiveness of the door, meanwhile, the operation experience of a user is optimized through rotation pause of the cover plate, and the user is prevented from being squeezed and clamped by the cover plate when operating the handle.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of household appliances, and in particular to a household appliance. Background Art

[0002] With the current market and customer needs, the requirements for the appearance and user experience of household appliances are constantly improving. Take the door handle as an example. The handles on the doors of old refrigerators are usually exposed handles (also known as external handles) or built-in integrated handles, collectively referred to as external handle assemblies. The commonality of this type of external handle assembly is that most of the structure of the handle can be directly seen, which is not only unsightly, but also dust and other debris can easily accumulate on the handle, causing the handle to get dirty and requiring users to clean it frequently.

[0003] Therefore, some refrigerators have turned to hidden handles, which are hidden by providing a cover that can cover the handle. However, the cover design of existing hidden handles is generally similar to the baffle of a vending machine. When the user pushes the cover open to operate the handle, the cover is always in a reset state due to gravity or a reset mechanism, which will squeeze the user's fingers and there is a risk of pinching the hand, resulting in a very poor user experience. Summary of the invention

[0004] An object of embodiments of the present invention is to provide an improved household appliance.

[0005] Therefore, an embodiment of the present invention provides a household appliance, comprising: a box body, defining at least one chamber; a door, movably connected to the front of the box body to open or close at least a portion of the chamber; the door comprises: a door body, having a groove open toward the front surface of the door; a handle assembly, arranged in the groove, the handle assembly comprising a cover plate and a handle portion, the cover plate having a first side and a second side opposite to each other, the first side being hinged to the groove, the handle portion being arranged toward the second side, and the cover plate being rotatable between a first position and a second position; a stop mechanism, arranged in the groove, the stop mechanism being used to keep the cover plate in the second position; wherein the cover plate in the first position closes the opening of the groove, and the cover plate in the second position exposes at least a portion of the opening.

[0006] Compared with the existing refrigerator hidden handles, the cover plate cannot stop automatically, which will continue to squeeze the user's hand when the user operates the door handle, affecting the user's operating experience. The hidden handle design provided in this embodiment can optimize the appearance of the door by hiding the handle through the cover plate, while optimizing the user's operating experience through the rotation pause of the cover plate, thereby preventing the user from being squeezed and pinched by the cover plate when operating the handle. Specifically, the handle assembly is hidden by the cover plate, so that the handle part is invisible to the outside when not in use, thereby improving the appearance of the door. Furthermore, the cover plate can play a protective role to prevent foreign matter from entering the groove, which is conducive to improving the dirt resistance of the handle assembly and reducing the frequency of user cleaning. Furthermore, based on the stop mechanism, the rotation pause is achieved while the cover plate moves, and the cover plate is kept in the second position to prevent the cover plate from resetting itself and causing pinching of the hand.

[0007] Optionally, the cover plate at the second position is more recessed toward the box body than at the first position. Thus, the cover plate flips inward to expose the handle portion disposed in the groove, which is conducive to allowing the user to operate the door handle in a more ergonomic manner.

[0008] Optionally, an operating space for a hand to be inserted is formed between the cover plate located at the second position and the handle portion. Thus, the cover plate held at the second position by the stop mechanism can form a stable operating space with the handle portion. The size of the operating space remains almost unchanged while the user operates the handle portion, thereby providing sufficient space for the user's hand to move, thereby optimizing the user's experience.

[0009] Optionally, the handle portion includes the front wall of the groove. Thus, the cover plate exposes the handle portion at the same time as the opening, so that the user can immediately operate the handle portion to pull the door to move. Furthermore, the front wall of the reused groove is used to form the handle portion, which is conducive to simplifying the structure of the handle assembly and reducing costs. Furthermore, the simplification of the handle assembly structure reduces the number of components that need to be arranged in the groove, so that the handle assembly described in this embodiment can be integrated into a door with a smaller thickness, which is conducive to obtaining a thinner door body.

[0010] Optionally, during the movement of the door relative to the box body, the cover plate is kept in the second position by the stop mechanism. Generally speaking, the user controls the movement of the door relative to the box body by grasping the handle. Therefore, the stop mechanism of this embodiment always reliably keeps the cover plate in the second position during the movement of the door, so as to ensure that the user is not squeezed by the cover plate during the whole process of operating the door, thereby further optimizing the user experience.

[0011] Optionally, the handle assembly includes a linkage part that is linked to the cover plate, and the stop mechanism includes a locking part for locking the linkage part when the cover plate rotates to the second position. Thus, the stop mechanism indirectly acts on the cover plate to achieve a rotation stop effect. Furthermore, the locking part and the linkage part cooperate instead of directly locking the cover plate, so that the setting position of the stop mechanism in the groove can be more flexible, for example, it does not need to be strictly set near the cover plate, which is conducive to making full use of the space in the groove and improving the compactness of the arrangement of the handle assembly in the groove.

[0012] Optionally, the linkage part includes: a connecting part extending backward from the cover plate, a guide groove is provided on the side wall of the groove, and the connecting part moves along the guide groove as the cover plate rotates. Thus, the guide groove guides the movement trajectory of the connecting part, so that the cover plate can rotate more smoothly between the first position and the second position.

[0013] Optionally, the connecting portion includes a first connecting member disposed on the first side and a second connecting member disposed on the second side, and the guide groove includes a first guide rail and a second guide rail, and during the rotation of the cover plate, the first connecting member moves along the first guide rail, and the second connecting member moves along the second guide rail. Thus, during the rotation to the second position, the hinged side (i.e., the first side) of the cover plate and the groove also moves a certain distance along the first guide rail, which is conducive to exposing more openings to increase the operating space available for the hand to reach in, and further optimize the user experience.

[0014] Optionally, the first guide rail forms a line, and the second guide rail forms a closed figure connected end to end. Thus, the first guide rail for the movement of the first connecting member is suitable for allowing the first connecting member to move within a certain range while providing a fulcrum so that the cover plate can rotate around the connection between the first side and the side wall, and the second guide rail for the movement of the second connecting member is suitable for guiding the second side of the cover plate to rotate along a predetermined track.

[0015] Optionally, the first guide rail includes a first guide rail segment, the second guide rail includes a second guide rail segment, a third guide rail segment and a fourth guide rail segment, the second guide rail segment, the third guide rail segment and the fourth guide rail segment together form a triangle or a quasi-triangle, and the third guide rail segment is farther away from the opening than the second guide rail segment and the fourth guide rail segment. Thus, the first guide rail segment is suitable for forming a track for the movement of the first connecting member, and the second guide rail segment, the third guide rail segment and the fourth guide rail segment together form a track for the movement of the second connecting member and serve as a stop for the second connecting member. Further, the triangular or quasi-triangular second guide rail is suitable for cooperating with the first guide rail segment, allowing the cover plate to move as a whole during rotation around the hinge between the first side and the groove.

[0016] Optionally, the first guide rail segment extends along a straight line; and / or the third guide rail segment includes a portion extending along a straight line. Thus, the cover plate can quickly and smoothly reach the second position.

[0017] Optionally, the second guide rail segment and / or the fourth guide rail segment include an arc-shaped extension portion. Thus, the movement trajectory of the cover plate when rotating around the hinge between the first side and the groove is limited and guided by the second guide rail segment and the fourth guide rail segment, which helps to ensure that the cover plate rotates smoothly between the first position and the second position in an expected posture.

[0018] Optionally, the second guide rail segment and the fourth guide rail segment partially overlap from the end close to the opening, and the ends of the second guide rail segment and the fourth guide rail segment away from the opening respectively form the end points of the third guide rail segment along the extension direction. As a result, during the movement of the second connector along the overlapping section, the cover plate as a whole rotates around the hinge between the first side and the groove, and as the second connector moves to the bifurcation of the second guide rail segment and the fourth guide rail segment, the cover plate that continues to move moves as a whole, which is beneficial to increase the degree of exposure of the opening. Furthermore, the non-overlapping parts of the second guide rail segment and the fourth guide rail segment together with the third guide rail segment form a guide groove structure similar to a triangle / heart shape, so that the movement of the second connector from the first position to the second position is at least partially independent of the movement trajectory when returning from the second position to the first position, and the independent part is close to the second position, which is beneficial to avoid the cover plate from unexpectedly falling back from the second position.

[0019] Optionally, during the rotation of the cover plate from the first position to the second position, the second connecting member moves along the second guide rail segment and the third guide rail segment. Under the action of an external force, the cover plate rotates along the second guide rail segment to the connection with the third guide rail segment. At this time, the external force can be removed, and the cover plate continues to move along the third guide rail segment to the second position under the action of gravity and / or an auxiliary force applied by an auxiliary mechanism. As a result, the user can move the cover plate to the second position by applying less force or without pushing the cover plate all the way, further optimizing the user experience.

[0020] Optionally, during the rotation of the cover plate from the second position to the first position, the second connecting member moves along the fourth guide rail segment, thereby enabling the cover plate to quickly return to the first position.

[0021] Optionally, the first guide rail segment is parallel to the third guide rail segment, thereby ensuring that the cover plate reaching the connection between the second guide rail segment and the third guide rail segment can smoothly move as a whole along the third guide rail segment to the second position.

[0022] Optionally, the second guide rail segment and the fourth guide rail segment extend backward and upward from the opening, so that the track shape formed by the second guide rail segment and the fourth guide rail segment adapts to the track shape when the cover plate rotates around the hinge between the first side and the groove.

[0023] Optionally, the first rail segment extends backward and downward from the opening. Thus, after the cover plate reaches the connection between the second rail segment and the third rail segment, even if the external force applied by the user disappears, the cover plate can smoothly move to the second position along the first rail segment and the third rail segment under the action of gravity.

[0024] Optionally, the length of the first guide rail segment matches the length of the third guide rail segment, thereby ensuring that the movement of the first connecting member in the first guide rail segment and the movement of the second connecting member in the third guide rail segment are substantially synchronized.

[0025] Optionally, the second guide rail segment is closer to the opening than the fourth guide rail segment. Thus, the second guide rail segment and the third guide rail segment together form a motion track for the cover plate to flip from the first position to the second position, and the fourth guide rail segment forms a motion track for the cover plate to flip from the second position back to the first position.

[0026] Optionally, the fourth guide rail segment has a stop boss for cooperating with the second connector to keep the cover plate in the second position, thereby preventing the cover plate from unexpectedly returning to the first position along the fourth guide rail segment to avoid squeezing and pinching the user's fingers.

[0027] Optionally, a guiding slope is formed at one end of the third guide rail section facing the second guide rail section, so that when the user suddenly lets go of the cover plate during pushing, it is ensured that the cover plate automatically enters the third guide rail section and cannot retreat along the second guide rail section.

[0028] Optionally, the locking portion includes: a second elastic member having a seventh end and an eighth end opposite to each other along the elastic force direction, the seventh end being fixed to the groove, the eighth end being connected to the connecting portion, and the second elastic member being in a stretched state when the cover is located at the second position, so as to keep the connecting portion at a preset position of the guide groove. Thus, the connecting member is held against the connection between the third guide rail segment and the fourth guide rail segment by the force applied by the second elastic member, so as to achieve a rotation stop effect of the cover.

[0029] Optionally, the linkage part further includes: a connecting rod, one end of which is connected to the connecting part, and the other end of which is used to contact a push rod, and the push rod is configured to be supported by the connecting rod and move toward the box body. Thus, the contact and sliding between the cover plate and the push rod are achieved through the connecting rod, which plays a role in force transmission. Furthermore, the push rod moving toward the box body is suitable for cooperating with the connecting rod to achieve automatic resetting of the cover plate when the door closes the box body.

[0030] Optionally, the handle assembly further comprises: a reset mechanism disposed in the groove, the reset mechanism being used to drive the cover plate to return from the second position to the first position, thereby achieving or accelerating the automatic reset of the cover plate through the reset mechanism.

[0031] Optionally, the reset mechanism includes: a push rod, the end of which extends from the groove toward the box body, and as the door moves toward the box body, the push rod abuts against the box body and pushes the cover plate in the opposite direction from the second position to the first position. Thus, the cover plate is automatically reset by the cooperation between the push rod and the box body.

[0032] Optionally, when the door closes at least a portion of the chamber, there is a non-zero gap between the push rod and the box body, so that the cover plate encounters little resistance when rotating from the first position to the second position, and the user can lift the cover plate with a small force, further optimizing the user experience.

[0033] Optionally, the push rod contacts the box body before the cover plate rotates to the second position. Thus, when the door closes the box body, the push rod has moved forward to push the cover plate away from the second position, ensuring that the push rod reliably plays a role in prompting the cover plate to return to its original position. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic diagram of a household appliance according to a first embodiment of the present invention;

[0035] Figure 2 yes Figure 1 Local cross-sectional view along AA direction;

[0036] Figure 3 yes Figure 1 A partial enlarged view of the middle area B when the cover plate is in the second position;

[0037] Figure 4 yes Figure 3 Cross-sectional view along CC direction;

[0038] Figure 5 yes Figure 2 A schematic diagram of the internal structure of the groove shown;

[0039] Figure 6 yes Figure 1 Schematic diagram of the middle cover;

[0040] Figure 7 yes Figure 2 Schematic diagram of the middle push rod;

[0041] Figure 8 Yes Figure 1 A partial enlarged view of the middle area B when the cover plate is in the first intermediate state;

[0042] Fig. 9 yes Figure 8 Cross-sectional view along DD direction;

[0043] Fig.10 yes Figure 1 A partial enlarged view of the middle area B when the cover plate is in the second intermediate state;

[0044] Fig.11 yes Fig.10 Cross-sectional view along EE direction;

[0045] Fig.12 is a schematic diagram of a household appliance according to a second embodiment of the present invention;

[0046] Fig.13 yes Fig.12 Cross-sectional view along FF direction;

[0047] Fig.14 yes Fig.12 A schematic diagram of the cover plate of the door shown in the second position;

[0048] Fig.15 yes Fig.14 Cross-sectional view along the GG direction;

[0049] Fig.16 yes Fig.13 Schematic diagram of the middle cover plate and the inner parts of the groove;

[0050] Fig.17 yes Fig.16 An exploded view of the structure shown;

[0051] Fig.18 yes Fig.16 Cross-sectional view along the HH direction;

[0052] Fig.19 yes Fig.18 Exploded view of the rotating component;

[0053] In the attached figure:

[0054] 1,6-household appliance; 10-box; 101-chamber; 11-door; 11a-front surface of the door; 110-door body; 111-insulated space; 112-front panel; 113-door frame; 114-groove; 114a-front wall; 114b-rear wall; 114c-bottom wall; 114d-top wall; 114f-side wall; 115-opening; 116-through groove; 12-guide groove; 121-first guide rail; 122-second guide rail; 124-first guide rail section; 125-second guide rail section; 126-third guide rail section ;126a-slope section;126b-guide slope;127-fourth guide rail section;13-top rod;131-first rod;131a-end of first rod;132-second rod;2-handle assembly;21-cover plate;21a-first side;21b-second side;211-third gear;22-handle portion;23-linkage portion;231-connecting portion;232-main body;233-shaft portion;234-first connecting member;235-second connecting member;236-connecting rod;24-reset mechanism;241-torsion spring;3-stop Positioning mechanism; 31-locking part; 311-second elastic member; 311a-seventh end; 311b-eighth end; 312-fixing column; 313-first elastic member; 313a-fifth end; 313b-sixth end; 32-stop boss; 33-stop rib; 331-flanging; 4-rotating assembly; 4a-first end; 4b-second end; 41-rotating member; 411-track; 412-first track; 412a-third end; 412b-fourth end; 413-second track; 414-bending section; 42-box body; 42 1-input shaft; 422-accommodating groove; 423-sleeve; 424-embedded portion; 43-ball; 44-transmission mechanism; 441-gear shaft; 442-first gear; 443-second gear; 45-fixing bracket; 451-through hole; 452-accommodating cavity; 453-screw hole; 454-fixing pile; 455-upper cover; 5-one-way ratchet assembly; 51-first ratchet; 52-second ratchet; 521-support shaft; x-width direction of household appliance; y-depth direction of household appliance; z-height direction of household appliance. DETAILED DESCRIPTION

[0055] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0056] Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used to denote the same parts in the various figures. The embodiments are merely illustrative, and of course, the structures shown in different embodiments may be partially replaced or combined. In the variants, the description of matters common to the first embodiment is omitted, and only the differences are described. In particular, the same effects produced by the same structure are no longer mentioned one by one according to each embodiment.

[0057] Figure 1 is a schematic diagram of a household appliance 1 according to a first embodiment of the present invention.

[0058] The household appliance 1 may include a refrigeration appliance, a dishwasher, a steamer, an oven, etc. The refrigeration appliance may be, for example, a refrigerator, a freezer, a wine cabinet, etc.

[0059] Figures 1 to 11 In the first embodiment shown, the household appliance 1 is taken as a refrigeration appliance to explain the present embodiment in detail. The refrigeration appliance may be, for example, a single-door refrigerator, a double-door refrigerator, a multi-door refrigerator, a side-by-side refrigerator, etc. The door 11 described in this embodiment may be applied to any door of the aforementioned various refrigerators. Figure 1 A double-door refrigerator is used as an example for exemplary display. In order to more clearly display the chamber 101, Figure 1 The upper door 11 is not shown.

[0060] For ease of description, in this embodiment, the width direction of the household appliance 1 is recorded as the x direction, the depth direction is recorded as the y direction, and the height direction is recorded as the z direction. In this embodiment, the front-to-back direction refers to the y direction and the opposite direction thereof, wherein the front or the front side refers to the direction facing the user when the household appliance 1 is in use, and the rear or the rear side refers to the direction away from the user when the household appliance 1 is in use.

[0061] Specifically, the household appliance 1 of this embodiment may include a housing 10 and a door 11. The housing 10 defines at least one chamber 101, and the door 11 is movably connected to the front of the housing 10 to open or close at least a portion of the chamber 101. In an example where the household appliance 1 is a refrigeration appliance, the chamber 101 may include a storage chamber, such as a freezer, a refrigerator, or a temperature-changing chamber.

[0062] Furthermore, the door 11 may include an insulating space 111 filled with insulating material. When the door 11 closes the chamber 101, the insulating layer formed by the insulating space 111 has the effect of isolating heat to ensure that the chamber 101 has a better refrigeration / freezing effect.

[0063] Further, the door 11 may include a door body 110, and a handle assembly 2 disposed on the door body 110. The handle assembly 2 is adapted to form a portion for a user to grasp, and the user may operate the handle assembly 2 to pull the door 11 away from the box body 10 or push the door 11 toward the box body 10 to open or close the chamber 101.

[0064] For example, the door body 110 may include a front panel 112, a rear wall facing the box body 10 when the door 11 is closed, and a door frame 113 arranged along the periphery of the door body 110. The door frame 113 is suitable for closing the side of the door body 110, and the front panel 112, the rear wall and the door frame 113 jointly define the heat-insulating space 111. The front surface of the front panel 112 is suitable for forming the front surface 11a of the door 11. In some embodiments, the front panel 112 forms at least a portion of the front boundary of the heat-insulating space 111 so that the heat-insulating material contacts the rear side of the front panel 112. In other embodiments, another layer of door panel may be further provided on the rear side of the front panel 112. The front panel 112 may be a glass plate or a ceramic plate.

[0065] The door frame 113 may include an upper side card and a lower side card located on opposite sides of the door body 110 along the z direction, and a left side card and a right side card located on opposite sides of the door body 110 along the x direction. The upper side card may also be called a door end cover.

[0066] Further, refer to Figure 1 and Figure 2 , the door body 110 may have a groove 114 open to the front surface 11a of the door 11. The groove 114 may have a front wall 114a, a rear wall 114b, a bottom wall 114c, a top wall 114d and a pair of side walls 114f, and the front wall 114a, the rear wall 114b, the bottom wall 114c, the top wall 114d and the pair of side walls 114f together enclose a space open to the front. For example, the groove 114 may be arranged near the upper edge card and extend along the x direction to the left and right edge cards. In some embodiments, the front wall 114a may reuse the rear surface of the front panel 112. In some embodiments, the top wall 114d may reuse the upper edge card.

[0067] Further reference Figure 1 and Figure 2 , the handle assembly 2 can be arranged in the groove 114. In the example where the groove 114 is opened close to the upper side card, the corresponding handle assembly 2 is also arranged close to the upper side card, so that the setting position of the door 11 is lower (such as Figure 1 In some embodiments, the groove 114 and the handle assembly 2 disposed in the groove 114 can be disposed close to the lower side card, so that when the door 11 is disposed at an upper position, the handle assembly 2 can be disposed close to the user's hand position when the user is naturally standing, so as to facilitate the user's operation. In some embodiments, the groove 114 can extend along the z direction and be disposed close to the left and right side cards, and the corresponding handle assembly 2 can be disposed close to the left or right side cards of the door 11.

[0068] Further reference Figure 1 and Figure 2The handle assembly 2 may include a cover plate 21 and a handle portion 22. The cover plate 21 is suitable for covering at least a portion of the structure of the handle portion 22, so that most of the structural features of the handle assembly 2 are hidden in the door body 11, realizing a hidden handle design and optimizing the appearance of the door 11.

[0069] Further reference Figure 2 The cover plate 21 may have a first side 21 a and a second side 21 b opposite to each other, the first side 21 a may be hinged to the groove 114 , and the handle portion 22 may be disposed toward the second side 21 b .

[0070] Further, refer to Figures 1 to 4 , the cover plate 21 can be in the first position (such as Figure 1 and Figure 2 as shown) and a second position (as Figure 3 and Figure 4 The cover plate 21 in the first position closes the opening 115 of the groove 114, so that at least most of the structure of the handle assembly 2 disposed in the groove 114 is not visible to the outside. The cover plate 21 in the second position exposes at least a portion of the opening 115, so that the user can touch the handle portion 22 in the groove 114 to use the handle function.

[0071] For example, the first side 21a and the second side 21b may be two opposite sides of the cover plate 21 along the z direction, wherein the first side 21a is closer to the upper card than the second side 21b. Figure 2 and Figure 4 From the perspective shown, the cover plate 21 can rotate counterclockwise around the hinge between the first side 21 a and the groove 114 to rotate from the first position to the second position.

[0072] Further reference Figures 1 to 4 The door 11 may also include a stop mechanism 3, which is arranged in the groove 114, and the stop mechanism 3 is used to keep the cover plate 21 at a position such as Figure 3 and Figure 4 The second position is shown.

[0073] For example, the cover plate 21 is rotated to Figure 3 and Figure 4 After reaching the second position, the stop mechanism 3 is held in this position.

[0074] Therefore, the hidden handle design provided in this embodiment can optimize the appearance of the door 11 by hiding the handle through the cover plate 21, and optimize the user's operating experience through the rotation pause of the cover plate 21, so as to prevent the user from being squeezed and pinched by the cover plate 21 when operating the handle. Specifically, the handle assembly 2 is hidden by the cover plate 21, so that the handle part 22 is invisible to the outside when not in use, thereby improving the appearance of the door 11. Furthermore, the cover plate 21 can play a protective role to prevent foreign matter from entering the groove 114, which is conducive to improving the dirt resistance of the handle assembly 2 and reducing the frequency of user cleaning. Furthermore, based on the stop mechanism 3, the rotation pause is achieved while the cover plate 21 moves, and the cover plate 21 is kept in the second position to prevent the cover plate 21 from resetting itself and causing pinching of the hand.

[0075] In some embodiments, when the cover plate 21 is in the first position, there may be a non-zero gap between the second side 21b and the edge of the opening 115 facing the second side 21b. Further, the degree to which the cover plate 21 in the first position closes the opening 115 is greater than the degree to which the cover plate 21 in the second position closes the opening 115.

[0076] Thus, when the cover plate 21 is in the first position, on the basis of closing the opening 115 as much as possible to cover as much of the internal structure of the groove 114 as possible, a certain gap is reserved to make the movement of the cover plate 21 smoother when rotating. Furthermore, a light strip can be arranged in the groove 114, and the ambient light emitted by the light strip can be transmitted through the gap to highlight and indicate the position of the handle assembly 2, further beautifying the appearance of the door 11.

[0077] In some embodiments, when the cover plate 21 is located at the first position, there is almost no gap between the second side 21b and the edge of the opening 115 facing the second side 21b or the size of the gap is almost negligible. Figure 12 to Figure 13 In other words, when the cover plate 21 is in the first position, the entire opening 115 is substantially closed. Thus, when the cover plate 21 is in the first position, there is no obvious gap or notch on the front of the door 11, which is beneficial to improving the aesthetics of the front of the door 11 and is more in line with industrial design requirements.

[0078] In some embodiments, continue to refer to Figure 1 and Figure 2 The cover plate 21 at the first position can be flush with the front surface 11a of the door 11. As a result, the front surface of the door 11 has no obvious protruding structure and is more flat and beautiful.

[0079] Alternatively, the cover plate 21 at the first position may protrude parallel to the front surface 11a of the door 11 or be recessed in the front surface 11a of the door 11. Thus, the specific location of the hidden handle on the door 11 may be more prominently highlighted, facilitating user operation.

[0080] In a specific implementation, continue to refer to Figures 1 to 4 , the cover plate 21 in the second position can be more recessed toward the box body 10 than in the first position. That is, the cover plate 21 can be rotated toward the box body 10 to gradually expose the opening 115 and the inner space of the groove 114. When in use, the user pushes the cover plate 21 toward the box body 10, and then extends into the groove 114 along the opening 115 gradually exposed by the cover plate 21 rotating into the groove 114, so as to operate the handle 22 provided in the groove 114.

[0081] Thus, the cover plate 21 is flipped inward to expose the handle portion 22 disposed in the groove 114 , which is conducive to allowing the user to operate the door handle in a more ergonomic manner.

[0082] In a specific implementation, continue to refer to Figure 4 , an operating space for the hand to be inserted is formed between the cover plate 21 located at the second position and the handle portion 22. Thus, the cover plate 21 held at the second position by the stop mechanism 3 can form a stable operating space with the handle portion 22. The size of the operating space is almost unchanged while the user is operating the handle portion 22, thereby providing sufficient space for the user's hand to move, and optimizing the user experience.

[0083] In some embodiments, Figures 1 to 4 The example in which the operation space is close to the lower edge of the opening 115 is used for exemplary display. Specifically, the two opposite sides of the cover plate 21 along the depth direction (e.g., z direction) of the groove 114 are respectively the first side 21a and the second side 21b, wherein the first side 21a is located above the second side 21b. As the cover plate 21 rotates backward and upward around the hinge between the first side 21a and the groove 114, the gap between the second side 21b and the lower edge of the opening 115 becomes larger and larger, and the corresponding internal space of the groove 114 is gradually exposed. The user's hand can reach the operation space through the gap, and then operate the handle portion 22 to operate the door 11.

[0084] In a variation, the first side 21a and the second side 21b may be opposite sides of the cover plate 21 along the depth direction (e.g., z direction) of the groove 114, and the first side 21a is located below the second side 21b. Accordingly, the operating space may be located above the opening 115, such as Figures 12 to 15 shown.

[0085] Alternatively, the first side 21a and the second side 21b may be opposite sides of the cover plate 21 along the length direction (e.g., x direction) of the groove 114, and the first side 21a is located on the left or right side of the second side 21b. Accordingly, the operation space may be located on the left / right side of the opening 115.

[0086] In one specific implementation, reference Figure 2 , Figure 4 and Figure 5 The handle portion 22 may include a front wall 114a of the groove 114. Specifically, the arm body between the front wall 114a of the groove 114 and the front panel 112 may be adapted to form a gripping portion for a user to grip.

[0087] Thus, the cover plate 21 exposes the handle 22 while exposing the opening 115, so that the user can immediately operate the handle 22 to pull the door 11. Furthermore, the front wall 114a of the reuse groove 114 forms the handle 22, which is conducive to simplifying the structure of the handle assembly 2 and reducing costs.

[0088] Furthermore, the simplification of the structure of the handle assembly 2 reduces the number of components required to be arranged in the groove 114, so that the handle assembly 2 of this embodiment can be integrated into the door 11 with a smaller thickness (in the y direction), which is conducive to obtaining a thinner door body. Furthermore, in the scenario where the household appliance 1 is a refrigeration appliance, such a design is conducive to ensuring the thickness of the insulation space 111 located behind the groove 114, which is conducive to avoiding condensation and other problems in the groove 114.

[0089] In a variation, a metal plate-like structure may be disposed in the groove 114 close to the front wall 114a to cooperate with the front wall 114a to form the handle portion 22. The metal plate-like structure may function as a reinforcement to improve the structural strength of the handle portion 22.

[0090] In addition, the metal plate structure is conducive to introducing the heat outside the front wall 114 a into the groove 114 , reducing the temperature difference between the internal space of the groove 114 and the outside, thereby helping to reduce the possibility of condensation on the inner wall of the groove 114 .

[0091] In some embodiments, the height of the front wall 114a along the z-direction may be suitable for grasping by adult fingers.

[0092] In a specific implementation, during the movement of the door 11 relative to the box body 10, the cover plate 21 is kept in the second position by the stop mechanism 3. Generally speaking, the user controls the movement of the door 11 relative to the box body 10 by grasping the handle 22, that is, the user keeps the hand extending from the opening 115 exposed by the cover plate 21 into the groove 114 during the pulling / pushing of the door 11. Therefore, the stop mechanism 3 of this embodiment always reliably keeps the cover plate 21 in the second position during the movement of the door 11. Figure 3 and Figure 4 The second position shown ensures that the user is not squeezed by the cover plate 21 during the entire process of operating the door 11, thereby further optimizing the user experience.

[0093] In one specific implementation, reference Figure 2 , Figures 4 to 6The handle assembly 2 may include a linkage portion 23 that is linked to the cover plate 21. During the movement of the cover plate 21 between the first position and the second position, the linkage portion 23 rotates with the rotation of the cover plate 21. In other words, the linkage portion 23 keeps moving synchronously with the cover plate 21.

[0094] Furthermore, the stop mechanism 3 may include a locking portion 31 for locking the linkage portion 23 when the cover plate 21 rotates to the second position. Since the linkage portion 23 and the cover plate 21 are linked, the linkage portion 23 locked by the locking portion 31 in turn restricts and stops the cover plate 21, so that the cover plate 21 is suspended.

[0095] Thus, the stop mechanism 3 indirectly acts on the cover plate 21 through the linkage portion 23 to achieve a rotation stop effect. Furthermore, the locking portion 31 cooperates with the linkage portion 23 instead of directly locking the cover plate 21, so that the setting position of the stop mechanism 3 in the groove 114 can be more flexible. For example, it does not need to be strictly set near the cover plate 21, which is conducive to making full use of the space in the groove 114 and improving the compactness of the arrangement of the handle assembly 2 in the groove 114.

[0096] In some embodiments, the linkage portion 23 may extend from the cover plate 21 toward the side wall 114f, and the locking portion 31 may be disposed on the side wall 114f. Along the y direction, the track of the cover plate 21 rotating around the hinge of the first side 21a and the groove 114 is not on the same straight line as the locking fit of the locking portion 31 and the linkage portion 23. As a result, the size of the groove 114 in the thickness direction of the door 11 is reduced. In the example where the household appliance 1 is a refrigeration appliance, more space behind the groove 114 can be released for the heat insulation space 111, which is conducive to improving the heat insulation effect of the door 11 at the handle assembly 2.

[0097] In a specific implementation, continue to refer to Figures 4 to 6 The linkage portion 23 may include a connection portion 231 extending rearward from the cover plate 21. Specifically, the connection portion 231 may include a main body portion 232 extending rearward from the cover plate 21, and a shaft portion 233 extending from the main body portion 232 toward the side wall 114f.

[0098] Furthermore, the side wall 114f of the groove 114 may be provided with a guide groove 12, and the connecting portion 231 moves along the guide groove 12 as the cover plate 21 rotates. The guide groove 12 may be formed by being recessed from the side wall 114f toward a direction away from the groove 114.

[0099] For example, the shaft portion 233 extends into the guide groove 12 , and as the cover plate 21 rotates, the shaft portion 233 is supported by the guide groove 12 and moves along the guide groove 12 .

[0100] Thus, the guide groove 12 guides the movement trajectory of the connecting portion 231 , so that the cover plate 21 can rotate between the first position and the second position more smoothly.

[0101] In some embodiments, a pair of side walls 114f may be symmetrically provided with a pair of guide grooves 12, and accordingly, the number of the connecting portions 231 may be multiple and symmetrically provided on two opposite sides of the cover plate 21 along the x direction. For each connecting portion 231, the shaft portion 233 of the connecting portion 231 extends in a direction away from the cover plate 21 and extends into the guide groove 12 on the corresponding side.

[0102] In some embodiments, the cover plate 21 may be provided with connecting portions 231 near the first side 21a and near the second side 21b, respectively. The shaft portion 233 of the connecting portion 231 near the first side 21a is adapted to cooperate with the side wall 114f to form a hinge axis, and the cover plate 21 rotates around the hinge axis during movement between the first position and the second position.

[0103] In a specific implementation, continue to refer to Figures 4 to 6 The connection portion 231 may include a first connection member 234 disposed on the first side 21 a and a second connection member 235 disposed on the second side 21 b .

[0104] Specifically, each of the first connector 234 and the second connector 235 may include a main body 232 and a shaft 233. For example, the number of the first connector 234 may be multiple and symmetrically arranged on both sides of the cover plate 21 along the x direction. For another example, the number of the second connector 235 may be multiple and symmetrically arranged on both sides of the cover plate 21 along the x direction.

[0105] Further, the guide slot 12 may include a first guide rail 121 and a second guide rail 122. During the rotation of the cover plate 21, the first connecting member 234 moves along the first guide rail 121, and the second connecting member 235 moves along the second guide rail 122. For example, the shaft portion 233 of the first connecting member 234 extends into the first guide rail 121 and can move along the first guide rail 121. For another example, the shaft portion 233 of the second connecting member 235 extends into the second guide rail 122 and can move along the second guide rail 122.

[0106] Further, the pair of side walls 114 f may be symmetrically provided with a pair of first guide rails 121 and a pair of second guide rails 122 .

[0107] Thus, during the rotation to the second position, the hinged side of the cover 21 and the groove 114 (i.e., the first side 21a) also moves a certain distance along the first guide rail 121, which is conducive to exposing more openings 115 to increase the operating space available for the hand to enter, further optimizing the user experience.

[0108] In some embodiments, the first guide rail 121 may form a line. In some embodiments, the second guide rail 122 may form a closed figure connected end to end. Thus, the first guide rail 121 for the first connecting member 234 to move is suitable for providing a fulcrum so that the cover plate 21 can rotate around the connection between the first side 21a and the side wall 114f while allowing the first connecting member 234 to move within a certain range, and the second guide rail 122 for the second connecting member 235 to move is suitable for guiding the second side 21b of the cover plate 21 to rotate along a predetermined track.

[0109] In a specific implementation, continue to refer to Figure 2 , Figure 4 and Figure 5 , the first guide rail 121 may include a first guide rail segment 124. Specifically, the first guide rail segment 124 may be a straight line segment, that is, the first guide rail segment 124 may extend along a straight line. The first guide rail segment 124 extending along a straight line is suitable for forming a track for the first connecting member 234 (e.g., a hinge shaft) to move.

[0110] In a specific implementation, continue to refer to Figure 2 , Figure 4 and Figure 5 The second guide rail 122 may include a second guide rail segment 125 , a third guide rail segment 126 and a fourth guide rail segment 127 .

[0111] Specifically, the second rail segment 125, the third rail segment 126 and the fourth rail segment 127 together form a triangle or a quasi-triangle. Further, the third rail segment 126 is farther away from the opening than the second rail segment 125 and the fourth rail segment 127. The quasi-triangle may be a shape that is not a triangle in a strict sense, for example, a quasi-triangle may be obtained by slightly twisting, bending or other deformation processing on the basis of a triangle.

[0112] Furthermore, the second rail segment 125 and the fourth rail segment 127 may be arcuate segments, and both may extend from near the opening 115 toward the rear wall 114b. The arcuately extended second rail segment 125 and the fourth rail segment 127 are suitable for forming a track for the second connector 235 to rotate with the cover plate 21 around the hinge axis.

[0113] Further, the third rail segment 126 may be a straight segment, or the third rail segment 126 may include a portion extending in a straight line. The third rail segment 126 extending in a straight line is suitable for cooperating with the first rail segment 125 to provide a track for the overall movement of the cover plate 21. Further, the provision of the straight segment enables the cover plate 21 to quickly and smoothly reach the second position.

[0114] Further, the lower and rear vertex of the triangle-like shape is suitable for forming a locking portion 31 for locking the second connecting member 235. For example, referring to Figure 4 and Figure 5 The fourth guide rail segment 127 is located behind the second guide rail segment 125, and the shaft portion 233 of the second connecting member 235 can stay at the connection between the fourth guide rail segment 127 and the third guide rail segment 236 under the action of gravity. At this time, the cover plate 21 is maintained in the second position.

[0115] Thus, the second rail segment 125, the third rail segment 126 and the fourth rail segment 127 together form a track for the second connector 235 to move and play the role of stopping the second connector 235. Further, the triangular second rail 122 is suitable for cooperating with the first rail segment 124, allowing the cover plate 21 to move as a whole during the rotation around the hinge of the first side 21a and the groove 114 (for example, the shaft 233 of the first connector 234). Further, the movement trajectory of the cover plate 21 when rotating around the hinge of the first side 21a and the groove 114 is limited and guided by the second rail segment 125 and the fourth rail segment 127, which is conducive to ensuring that the cover plate 21 rotates smoothly between the first position and the second position according to the expected posture.

[0116] In some embodiments, the second rail segment 125 and / or the fourth rail segment 127 may include an arc-shaped extension portion. Further, the fourth rail segment 127 may also include a portion of an inclined straight extension portion, which is closer to the opening 115 than the arc-shaped extension portion of the fourth rail segment 127, which is conducive to the cover plate 21 quickly returning to the first position.

[0117] In a specific implementation, continue to refer to Figure 2 , Figure 4 and Figure 5 The second rail segment 125 and the fourth rail segment 127 may partially overlap from the end close to the opening 115 , and the ends of the second rail segment 125 and the fourth rail segment 127 away from the opening 115 may respectively form the end points of the third rail segment 126 along the extension direction.

[0118] In other words, the second guide rail 122 extends backward from the position near the opening 115 and bifurcates at the end to form a triangle. The section before the bifurcation and the section at the front and upper part of the triangle together form the second guide rail section 125, the section before the bifurcation and the section at the lower part of the triangle together form the fourth guide rail section 127, and the remaining section forms the third guide rail section 126.

[0119] Furthermore, the second guide rail 122 extends in an arc shape rearward and upward as a whole.

[0120] Therefore, during the movement of the second connecting member 235 along the overlapping section, the cover plate 21 as a whole rotates around the hinge between the first side 21a and the groove 114 (for example, the shaft portion 233 of the first connecting member 234). As the second connecting member 235 moves to the bifurcation of the second guide rail segment 125 and the fourth guide rail segment 127, the cover plate 21 continues to move as a whole, which is beneficial to increase the degree of exposure of the opening 115.

[0121] Furthermore, the non-overlapping portions of the second guide rail segment 125 and the fourth guide rail segment 127 together with the third guide rail segment 126 form a guide groove structure similar to a triangle / heart shape, so that the movement trajectory of the second connecting member 235 from the first position to the second position is at least partially independent of the movement trajectory from the second position back to the first position, and the independent portion is close to the second position, which helps to prevent the cover plate 21 from unexpectedly falling back from the second position.

[0122] In some embodiments, the curvature of the track of the overlapping portion of the second rail segment 125 and the fourth rail segment 127 may be smaller than the curvature of the respective tracks of the non-overlapping portions of the two. Furthermore, the curvature of the track of the portion of the second rail segment 125 that does not overlap with the fourth rail segment 127 may be greater than the curvature of the other portions of the track, so that the cover plate 21 moving along this section of the track will have a more obvious front-upward lifting stroke.

[0123] In a specific implementation, combined with Figures 1 to 11 During the rotation of the cover plate 21 from the first position to the second position, the second connecting member 235 can move along the second guide rail segment 125 and the third guide rail segment 126 .

[0124] Specifically, the triangular-shaped structural design allows the third rail segment 126 to extend downward and backward from the connection with the second rail segment 125. The cover plate 21 rotates along the second rail segment 125 to the connection with the third rail segment 126 under the action of an external force (e.g., a thrust applied by a user), and the external force can be removed. Under the action of the guide slope 126b, the cover plate 21 continues to move along the third rail segment 126 to the second position under the action of gravity and / or an auxiliary force applied by an auxiliary mechanism (e.g., the second elastic member 311).

[0125] Therefore, the user can move the cover plate 21 to the second position by applying less force or without pushing the cover plate 21 all the way, thereby further optimizing the user experience.

[0126] Furthermore, a guide slope 126 b may be formed at one end of the third rail segment 126 facing the second rail segment 125 . Thus, when the user suddenly lets go of the cover plate 21 while pushing it, the cover plate 21 will automatically enter the third rail segment 126 and cannot retreat along the second rail segment 125 .

[0127] In a specific implementation, when the cover plate 21 rotates from the second position to the first position, the second connector 235 moves along the fourth rail segment 127. The fourth rail segment 127 can extend substantially in an arc shape without obvious corners, so that the cover plate 21 can be quickly reset to the first position.

[0128] In a specific implementation, continue to refer to Figure 5 , the first rail segment 124 may be parallel to the third rail segment 126. For example, the first rail segment 124 and the third rail segment 126 may extend backward and downward respectively from the position close to the opening 115. Thus, after the cover plate 21 reaches the connection between the second rail segment 125 and the third rail segment 126, even if the external force applied by the user disappears, the cover plate 21 can smoothly move to the second position along the first rail segment 124 and the third rail segment 126 under the action of gravity.

[0129] Furthermore, the extension directions of the first rail segment 124 and the third rail segment 126 may be collinear. Accordingly, the cover plate 21 located at the second position may be in a posture parallel to the extension direction of the first rail segment 124 .

[0130] Therefore, it is ensured that the cover plate 21 reaching the connection point between the second guide rail segment 125 and the third guide rail segment 126 can smoothly move as a whole along the third guide rail segment 126 to the second position.

[0131] In some embodiments, the second rail segment 125 and the fourth rail segment 127 may extend backward and upward from the opening 115 , so that the track shape formed by the second rail segment 125 and the fourth rail segment 127 matches the track shape when the cover plate 21 rotates around the hinge between the first side 21 a and the groove 114 .

[0132] In some embodiments, the length of the first rail segment 124 can match the length of the third rail segment 126. For example, the lengths of the first rail segment 124 and the third rail segment 126 can be equal. For another example, the extension length of the first rail segment 124 can be slightly longer than the extension length of the third rail segment 126. Thus, it is ensured that the movement of the first connector 234 in the first rail segment 124 and the movement of the second connector 235 in the third rail segment 126 are substantially synchronized.

[0133] In some embodiments, the second rail segment 125 is closer to the opening 115 than the fourth rail segment 127. Thus, the second rail segment 125 and the third rail segment 126 together form a motion track for the cover plate 21 to flip from the first position to the second position, and the fourth rail segment 127 forms a motion track for the cover plate 21 to flip from the second position back to the first position.

[0134] In a specific implementation, continue to refer to Figure 2 , Figure 4 , Figure 5 , Fig. 9and Fig.11 The fourth guide rail segment 127 may have a stop boss 32 for cooperating with the second connecting member 235 to keep the cover plate 21 at the second position.

[0135] Specifically, the stop mechanism 3 may include a stop boss 32, which is disposed near the connection between the fourth rail segment 127 and the third rail segment 126 and protrudes toward the second rail segment 125. The shaft portion 233 of the second connecting member 235 at the second position is blocked behind the stop boss 32.

[0136] Thus, the cover plate 21 is prevented from unexpectedly returning to the first position along the fourth guide rail segment 127 to avoid squeezing and pinching the user's fingers.

[0137] In some embodiments, continue to refer to Figure 5 , Fig. 9 and Fig.11 The bottom surface of the third guide rail segment 126 may be provided with a slope segment 126 a located in the middle of the third guide rail segment 126 along the extension direction.

[0138] Specifically, in the x direction, the portion of the third rail segment 126 between the ramp segment 126a and the second rail segment 125 may protrude outward from the portion of the third rail segment 126 between the ramp segment 126a and the fourth rail segment 127. The two portions with a height difference are connected and transitioned by the ramp segment 126a.

[0139] Furthermore, the slope of the slope section 126a extends obliquely from the second rail section 125 toward the fourth rail section 127 and away from the cover plate 21. Therefore, when the shaft portion 233 slides in the third rail section 126, it is easier to slide to the fourth rail section 127 below.

[0140] In a specific implementation, continue to refer to Figure 2 , Figure 4 , Figure 5 , Fig. 9 and Fig.11 The locking portion 31 may include a second elastic member 311 having a seventh end 311a and an eighth end 311b opposite to each other along the elastic force direction, the seventh end 311a being fixed to the groove 114, and the eighth end 311b being connected to the connecting portion 231 (for example, connected to the shaft portion 233 of the first connecting member 234).

[0141] Specifically, when the cover plate 21 is located at the second position, the second elastic member 311 may be in a stretched state to keep the connecting portion 231 at a preset position of the guide groove 12 .

[0142] The preset position may be, for example, the connection between the third guide rail segment 126 and the fourth guide rail segment 127. Further, the preset position may be, for example, the area between the stop boss 32 of the fourth guide rail segment 127 and the aforementioned connection.

[0143] Thus, the connecting member 231 is held at, for example, the connection point between the third guide rail segment 126 and the fourth guide rail segment 127 by the force applied by the second elastic member 311 , thereby achieving a rotation stop effect of the cover plate 21 .

[0144] In some embodiments, the second elastic member 311 may be, for example, a spring.

[0145] In some embodiments, the side wall 114f of the groove 114 may be provided with a fixing column 312 extending outward, and the seventh end 311a may be connected to the fixing column 312. Further, the fixing column 312 may be located between the first guide rail segment 124 and the third guide rail segment 126, and located in the extension direction of both. Thus, the elastic force direction of the second elastic member 311 is parallel to the extension direction of the first guide rail segment 124 and the third guide rail segment 126, ensuring that after the second connecting member 235 reaches the connection between the second guide rail segment 125 and the third guide rail segment 126, it falls along the third guide rail segment 126 under the action of the second elastic member 311.

[0146] In a specific implementation, continue to refer to Figures 1 to 11 The linkage portion 23 may further include a connecting rod 236, one end of which is connected to the connecting portion 231, and the other end of the connecting rod 236 is used to contact a push rod 13, and the push rod 13 may be configured to be supported by the connecting rod 236 and move toward the box body 10.

[0147] Specifically, along the x-direction, the connecting rod 236 and the shaft portion 233 may be located at both sides of the connecting portion 231 (eg, the second connecting member 235 ), respectively.

[0148] Furthermore, the connecting rod 236 may be shaped like a water drop, with a sharper end of the water drop being fixed to the connecting portion 231 , and a rounder end of the water drop extending in a direction away from the connecting portion 231 and being suitable for contacting the top rod 13 .

[0149] Further, the top rod 13 may include a first rod 131 extending along the y direction, and a second rod 132 extending from the front end of the first rod 131 toward the bottom wall 114c. The connecting rod 236 rotated backward with the cover plate 21 touches the second rod 132, thereby pushing the top rod 13 to move backward along the y direction.

[0150] Furthermore, the door body 110 may be provided with a through slot 116 connecting the groove 114 and the rear surface of the door 11. Figure 5As shown. The first rod 131 is accommodated in the through slot 116 and can move forward and backward along the y direction in the through slot 116. The end 131a of the first rod 131 extends out of the through slot 116, that is, it protrudes backward from the door body 110. As the top rod 13 is pushed backward by the connecting rod 236, the end 131a of the first rod 131 protrudes backward from the door body 110 to different degrees.

[0151] Thus, the contact and sliding between the cover plate 21 and the push rod 13 are achieved through the connecting rod 236, which plays a role in force transmission.

[0152] Furthermore, when the door 11 closes the box body 10, the push rod 13 moves toward the box body 10 as the door 11 moves toward the box body 10, and is pushed forward by the box body 10. The second rod 132 moving forward touches the second connecting member 235 of the cover plate 21 located at the second position, thereby pushing the second connecting member 235 to slide forward along the fourth guide rail section 127. As a result, the cover plate 21 is automatically reset to the position as shown in FIG. Figure 1 and Figure 2 The first position is shown.

[0153] Therefore, the top rod 13 moving toward the box body 10 is suitable for cooperating with the connecting rod 236 to realize the automatic reset of the cover plate 21 when the door 11 closes the box body 10.

[0154] In some embodiments, the extension direction of the connecting rod 236 and the extension direction of the connecting portion 231 (eg, the second connecting member 235 ) may have an angle greater than 90° and less than 180° to facilitate sliding and pushing therebetween.

[0155] In some embodiments, the first rod 131 and / or the second rod 132 may include a plate-like structure having a certain width along the x-direction to increase the contact area with the box body 10 or the connecting rod 236. Thus, force transmission is more stable.

[0156] In a specific implementation, the handle assembly 2 may further include a reset mechanism 24 disposed in the groove 114 for driving the cover plate 21 to return from the second position to the first position. Thus, the reset mechanism 24 realizes or accelerates the automatic reset of the cover plate 21.

[0157] For example, the reset mechanism 24 may include the push rod 13, the end of the push rod 13 (for example, the end 131a of the first rod 131) extends from the groove 114 toward the box body 10, and as the door 11 moves toward the box body 10, the push rod 13 abuts against the box body 10 and pushes the cover plate 21 in the opposite direction from the second position to the first position. Thus, the automatic reset of the cover plate 21 is achieved through the cooperation between the push rod 13 and the box body 10.

[0158] In some embodiments, when the door 11 closes at least a portion of the chamber 101 , a non-zero gap may exist between the push rod 13 and the box body 10 .

[0159] For example, as the door 11 moves toward the housing 10 , the top rod 13 may move forward under the inertia of the forward movement until there is a non-zero gap between the end 131 a of the first rod 13 and the housing 10 when the door 11 is finally located at a position closing the chamber 101 .

[0160] In a typical application scenario, when the user needs to open the door 11, as the user's hand reaches into the opening 115, the cover plate 21 is pushed to rotate backward along the guide groove 12. As the cover plate 21 moves backward, the connecting rod 236 touches the second rod 132 and pushes the second rod 132 to move backward until the end 131a of the first rod 131 abuts against the box body 10. As the door 11 is opened, the top rod 13 is pushed by the cover plate 21 to continue to move backward so as to protrude further from the rear surface of the door 11.

[0161] When the door 11 needs to be closed, as the door 11 moves toward the box body 10, the end 131a of the first rod 131 hits the box body 10 and is pushed forward by the box body 10. The second rod 132 moving forward exerts a forward force on the connecting rod 23 to push the cover plate 21 forward to return to the first position.

[0162] As a result, the resistance encountered by the cover plate 21 during rotation from the first position to the second position is small, and the user can lift up the cover plate 21 by applying a small force, thereby further optimizing the user experience.

[0163] In some embodiments, the push rod 13 can contact the box body 10 before the cover plate 21 rotates to the second position. Accordingly, in the door closing stage, the push rod 13 contacts the box body 10 and is pushed forward by the box body 10 when the door 11 moves toward the box body 10, which helps to ensure that the movement range of the second rod 132 is sufficient to push the second connecting member 235 over the stop boss 32. Therefore, when the door 11 closes the box body 10, the push rod 13 has moved forward to push the cover plate 21 away from the second position, ensuring that the push rod 13 reliably plays the role of prompting the cover plate 21 to return to its original position.

[0164] In a specific implementation, continue to refer to Figures 1 to 11 The door 11 may include a stop rib 33 extending forward from the rear wall 114b of the groove 114 and folding toward the second rod 132 at the end. When the door 11 closes at least a portion of the chamber 101, the forward movement of the push rod 13 is limited by the stop rib 33, so that the push rod 13 is stopped at a position such as Figure 2 Starting position shown.

[0165] Specifically, the projection of the stopping rib 33 in the y direction may at least partially overlap with the projection of the second rod 132 in the y direction.

[0166] Furthermore, the stop rib 33 is folded upward from the end to form a flange 331. Along the y direction, the flange 331 is located in front of the second rod 132.

[0167] In a typical application scenario, the cover plate 21 may initially be located at Figure 1 and Figure 2 The first position shown achieves a hidden handle effect by closing most of the opening 115. The user extends his hand to push the cover plate 21, and the cover plate 21 rotates around the shaft 233 of the first connecting member 234 under the thrust of the user.

[0168] As the cover plate 21 is pressed under the thrust Figure 2 The viewing angle rotates counterclockwise, and the synchronously moving connecting rod 236 moves backward until it contacts the second rod 132. Fig. 9 As the cover plate 21 continues to rotate counterclockwise, the shaft portion 233 of the second connecting member 235 slides along the fourth guide rail section 127, driving the connecting rod 236 to push the top rod 13 to move backward (ie, toward the box body 10).

[0169] When the cover plate 21 rotates counterclockwise until the shaft portion 233 of the second connecting member 235 slides to the bifurcation of the second guide rail segment 125 and the fourth guide rail segment 127, the cover plate 21 moves upward along the second guide rail segment 125 in a curved line under the action of the thrust. At the same time, the first connecting member 234 slides forward and upward along the first guide rail segment 124, and the second elastic member 311 is stretched. During this period, the cover plate 21 is lifted forward and upward while turning backward.

[0170] The shaft portion 233 of the second connecting member 235 slides along the fourth guide rail segment 127 to the highest point of the guide slot 12 (for example, the connection between the fourth guide rail segment 127 and the third guide rail segment 126). Fig.11 At this time, the cover plate 21 no longer moves backwards, and under the action of the second elastic member 311, the cover plate 21 moves backwards and downwards along the third guide rail section 126, while driving the push rod 13 to continue to move backwards. During this period, the user's thrust can be removed.

[0171] As the end 131a of the first rod 131 abuts against the box body 10, the cover plate 21 stops moving. At this time, the opening 115 is exposed to a greater extent, and the user can extend his hand into the operating space to grasp the handle portion 22, thereby pulling the entire door 11. When the cover plate 21 temporarily stops moving due to the push rod 13 abutting against the box body 10, the shaft portion 233 of the second connecting member 235 can be located between the two ends of the third guide rail segment 126 along the extension direction.

[0172] As the door 11 is opened, the contact force between the door 11 and the box body 10 is lost, and the top rod 13 can continue to move backward. At the same time, the cover plate 21 continues to slide down along the third guide rail section 126 to the suspended position, that is, Figure 4 At this time, the tendency of the shaft portion 233 of the second connecting member 235 to slide down along the fourth guide rail section 127 is limited by the stop boss 32 .

[0173] When the door 11 is closed, the end 131a of the first rod 131 contacts the box body 10, and the push rod 13 moves forward under the action of the force to contact the cover plate 21. Thus, the cover plate 21 is reset by the reverse action of the push rod 13.

[0174] The cover plate 21 slides along the fourth guide rail section 127 under the action of the forward force of the top rod 13 and gravity. Figure 4 The second position shown is reset to Figure 2 Further, during this period, the second elastic member 311 can apply a downward force to the cover plate 21 to assist the cover plate 21 in quickly completing the reset.

[0175] Fig.12 Schematic diagram of a household appliance 6 according to the second embodiment of the present invention. Figures 1 to 11 In some embodiments, the household appliance 6 may be, for example, an oven. Further, the household appliance 6 may include a single chamber 101, and the door 11 is adapted to open or close the entire chamber 101.

[0176] In one specific implementation, reference Figures 12 to 19 , this embodiment is different from the above Figures 1 to 11 The differences of the first embodiment shown mainly include: the linkage portion 23 may include a rotating assembly 4, which is rotatably connected to the groove 114 and rotates with the rotation of the cover plate 21. Along the rotation axis direction of the rotating assembly 4 (for example, the x direction), the rotating assembly 4 has a first end 4a and a second end 4b opposite to each other, and the first end 4a is coupled to the cover plate 21. As a result, the rotating assembly 4 and the cover plate 21 rotate synchronously to achieve linkage and force conduction. Further, the locking portion 31 can act on the rotating assembly 4 to indirectly stop the cover plate 21 by limiting the rotation of the rotating assembly 4.

[0177] Specifically, the rotating assembly 4 may include a rotating member 41, and the outer surface of the rotating member 41 may be provided with a track 411, such as Fig.19 shown.

[0178] Further reference Figures 16 to 19 The rotating assembly 4 may further include a box body 42 sleeved on the rotating member 41 , an input shaft 421 of the box body 42 may be coupled to the cover plate 21 , and the box body 42 has a receiving groove 422 open toward the rotating member 41 .

[0179] For example, the box body 42 may include a sleeve 423 sleeved on the rotating member 41, and the receiving groove 422 is provided in the sleeve 423. The sleeve 423 may be open toward the first end 4a to expose the rotating member 41 and the receiving groove 422, and the input shaft 421 has an embedded portion 424 to close the aforementioned open portion and to be linked with the sleeve 423. Thus, the rotation of the cover plate 21 is transmitted to the sleeve 423 through the input shaft 421, so that the cover plate 21 and the box body 42 are linked.

[0180] For example, the input shaft 421 can be directly coupled to the cover plate 21. Thus, the rotation of the cover plate 21 can be directly transmitted to the input shaft 421, thereby driving the rotation of the rotating member 41. For another example, the input shaft 421 can be indirectly coupled to the cover plate 21, so that the relative position setting of the cover plate 21 and the rotating member 41 can be more flexible.

[0181] Further, the receiving groove 422 may extend along the rotation axis. For example, the extending direction of the receiving groove 422 may be parallel to the x direction. Further, the receiving groove 422 may extend to both ends of the box body 42 along the x direction.

[0182] For example, the box body 42 (e.g., the sleeve 423) can be generally hollow and cylindrical, and can be sleeved on the rotating member 41. Further, the box body 42 can have a protrusion structure protruding outward, and there is a non-zero gap between the protrusion structure and the outer surface of the rotating member 41, which is suitable for forming the accommodating groove 422.

[0183] Further reference Fig.18 and Fig.19 The rotating assembly 4 may further include a ball 43, which is accommodated in the receiving groove 422 and can move along the track 411. As the cover plate 21 rotates, the box body 42 and the rotating member 41 rotate synchronously or asynchronously driven by the ball 43.

[0184] For example, refer to Fig.18 The track 411 can be formed by being recessed inward from the outer surface of the rotating member 41, so that the radially inwardly recessed track 411 and the outwardly protruding receiving groove 422 together enclose a space for accommodating the ball 43. Accordingly, the movement of the ball 43 along the track 411 will also drive the box body 42 to rotate synchronously.

[0185] In some embodiments, the balls 43 may be steel balls, for example.

[0186] In a specific implementation, when the rotating member 41 and the box body 42 rotate synchronously or asynchronously, the ball 43 moves along different tracks 411 .

[0187] Specifically, continue to refer to Fig.18 and Fig.19The track 411 may include a first track 412, and the first track 412 has a third end 412a and a fourth end 412b opposite to each other along the extension direction. The first track 412 may substantially extend in a straight line along the outer surface of the rotating member 41, and have a bent section 414 at the fourth end 412b.

[0188] Furthermore, the bent section 414 can be bent from the fourth end 412b toward the third end 412a.

[0189] The cover plate 21 is as follows Fig.12 and Fig.13 The first position shown is rotated to Fig.14 and Fig.15 During the second position shown, the ball 43 is located in the receiving groove 422 and moves along the first track 412 to the fourth end 412 b, and drives the rotating member 41 and the box body 42 to rotate synchronously.

[0190] Further, while the cover plate 21 is maintained at the second position, the ball 43 may be located at the bent section 414. For example, the ball 43 may be located at the end of the bent section 414, that is, at an end of the bent section 414 close to the third end 412a.

[0191] Furthermore, the track 411 may further include a second track 413 disposed along the circumference of the rotating member 41 , and the second track 413 is connected to the third end 412 a and the fourth end 412 b , respectively.

[0192] For example, the second track 413 may form a closed loop around the rotating member 41 along the circumference of the rotating member 41 , so that the balls 43 may circulate around the second track 413 .

[0193] For example, the second track 413 may be connected to the third end 412 a and the end of the bent section 414 , respectively.

[0194] When the cover plate 21 rotates from the second position to the first position, the ball 43 is located in the receiving groove 422 and moves along the second track 413 to drive the box body 42 to rotate along with the rotation of the cover plate 21. In this way, the cover plate 21 can be quickly reset.

[0195] In some embodiments, the rotating member 41 can remain stationary while the cover plate 21 rotates from the second position to the first position. That is, while the ball 43 moves along the second track 413, the box body 42 and the rotating member 41 are decoupled to ensure that the cover plate 21 can be reset to the first position.

[0196] In some embodiments, the first track 412 and the second track 413 can form a heart-shaped track 411. The concave portion of the heart is suitable for forming a bent section 414. Thus, specifically, the rotating assembly 4 having the heart-shaped track 411 rotates forward (for example, according to Fig.13 and Fig.15 When the viewing angle rotates clockwise), the ball 43 acts as a stop along the peach heart structure. Further, when rotating in the reverse direction, the ball 43 moves along the annular second track 413 to play a reset function.

[0197] Furthermore, as the cover plate 21 at the second position continues to rotate in a direction away from the first position, the ball 43 passes over the bent section 414 and enters the second track 413 .

[0198] Thus, by using the rotating assembly 4 of the heart-shaped track 411, the cover plate 21 can be stopped after being rotated to any angle in the groove 114. In other words, in the second embodiment, when the cover plate 21 is in the second position, the angle of the front surface 11a of the door 11 is variable, so that the degree of exposure of the opening 115 can be determined according to the needs of the user, and the cover plate 21 can be maintained at the degree of exposure of the opening 115 required by the user. Further, when it is necessary to reset the cover plate 21, the cover plate 21 can be gently pressed inward to rotate it by a small angle, and it can be reset to a position flush with the front panel 112.

[0199] In a specific implementation, continue to refer to Fig.13 , Figures 15 to 18 The rotating assembly 4 may further include a transmission mechanism 44 disposed in the groove 114 . The transmission mechanism 44 may be used to amplify the rotational motion of the cover plate 21 and transmit it to the box body 42 .

[0200] Specifically, the transmission mechanism 44 may include a first gear 442 and a second gear 443 that are coaxially arranged, wherein the module of the first gear 442 is greater than the module of the second gear 443 .

[0201] Furthermore, the rotating assembly 4 may include a fixing bracket 45 fixed to the bottom wall 114c of the groove 114. For example, a screw hole 453 (such as Fig.17 When assembling, screws are directly driven through screw holes 453 to fix the fixing bracket 45 to the bottom wall 114c.

[0202] Furthermore, the fixing bracket 45 may be provided with a through hole 451 for the gear shaft 441 to pass through, and the first gear 442 and the second gear 443 are rotatably connected to the fixing bracket 45 via the gear shaft 441 .

[0203] Furthermore, the first gear 442 is meshed with an end of the input shaft 421 away from the rotating member 41. The end of the input shaft 421 away from the rotating member 41 may be provided with a corresponding tooth portion.

[0204] Further, the second gear 443 is meshed with the third gear 211 provided on the cover plate 21. For example, the third gear 211 may be provided on the side of the cover plate 21 facing the groove 114, and extend backward from the cover plate 21 (for example, in a plane perpendicular to the x-direction) to mesh with the second gear 443. The gear axis of the third gear 211 may be parallel to the extension direction of the rotation axis of the cover plate 21 (for example, the x-direction), and the third gear 211 rotates synchronously with the rotation of the cover plate 21 to achieve transmission with the second gear 443.

[0205] Thus, the rotation angle is enlarged by the transmission mechanism 44. Specifically, the first gear 442, the second gear 443 and the gear shaft 441 together form a gear assembly, so that when the cover plate 21 rotates a small angle, the rotating member 41 can rotate a larger angle.

[0206] In some embodiments, along the axial direction of the gear shaft 441 (e.g., the x direction), the first gear 442 may be located between the second gear 443 and the wall of the fixing bracket 45 having the through hole 451. Thus, the structure of the rotating assembly 4 in the direction of the rotating axis (e.g., the x direction) is more compact, which is conducive to realizing the miniaturization design of the components and occupies less space in the groove 114.

[0207] In one specific implementation, reference Figures 12 to 19 , this embodiment is different from the above Figures 1 to 11 The main difference of the first embodiment shown is that the locking portion 31 may include a one-way ratchet assembly 5, which is arranged at the second end 4b. Therefore, the linkage portion 23 and the locking portion 31 are respectively arranged at both ends of the rotating assembly 4 along the rotating axis (for example, in the x direction), so that the rotating assembly 4 can rotate synchronously with the cover plate 21, and at the same time, the cover plate 21 can be stopped in turn by the locked rotating assembly 4 when it is necessary to stop.

[0208] Specifically, the one-way ratchet assembly 5 may include a first ratchet 51 and a second ratchet 52 that are meshed with each other. The first ratchet 51 is coaxially connected to the rotating assembly 4 , and the second ratchet 52 is movably connected to the groove 114 .

[0209] For example, the first ratchet 51 may extend outwardly along the x direction from an end of the rotating member 41 that is away from the second end 4b. In some embodiments, the first ratchet 51 and the rotating member 41 may be integrally formed.

[0210] For example, the second ratchet 52 is movably connected to the fixed bracket 45. The fixed bracket 45 may be provided with a receiving cavity 452 extending along the x-direction at the second end 4b, and the second ratchet 52 is provided with a supporting shaft 521 extending outwardly on the side away from the rotating assembly 4, and the supporting shaft 521 is suitable for extending into the receiving cavity 452. Therefore, along the x-direction, from the first end 4a to the second end 4b, there are the rotating assembly 4, the first ratchet 51, and the second ratchet 52 in sequence.

[0211] Furthermore, when the cover plate 21 rotates from the first position to the second position, the first ratchet 51 slides on the tooth back of the second ratchet 52. During this period, the second ratchet 52 is pushed to move toward the second end 4b along the x direction, and the support shaft 521 moves in the accommodating cavity 452 in a direction away from the rotating assembly 4.

[0212] In some embodiments, the accommodating cavity 452 extends along the x direction to the arm of the fixed bracket 45 where it is located, so that when the second ratchet 52 is pushed by the first ratchet 51 to move in a direction away from the first end 4a, the support shaft 521 can extend out of the fixed bracket 45. This is conducive to providing sufficient movement space for the second ratchet 52 and increasing the maximum rotatable angle of the cover plate 21.

[0213] In a specific implementation, continue to refer to Fig.18 and Fig.19 The locking portion 31 may further include a first elastic member 313 disposed on a side of the second ratchet 52 away from the rotating assembly 4. Specifically, the first elastic member 313 may be sleeved on the supporting shaft 521.

[0214] Furthermore, the first elastic member 313 has a fifth end 313a and a sixth end 313b opposite to each other along the elastic force direction, the fifth end 313a is connected to the second ratchet 52, and the sixth end 313b is fixed to the groove 114. For example, the sixth end 313b can be fixed in the accommodation cavity 452.

[0215] Further, the first elastic member 313 can be used to keep the first ratchet 51 and the second ratchet 52 engaged. Specifically, during the rotation of the cover plate 21 from the first position to the second position, the rotating member 41 rotates synchronously with the cover plate 21 under the transmission of the transmission mechanism 44, and the first ratchet 51 that rotates synchronously with the rotating member 41 pushes the second ratchet 52 to move toward the second end 4b along the x direction. As the second ratchet 52 moves toward the second end 4b, the first elastic member 313 is compressed. The elastic deformation force generated by the compressed first elastic member 313 ensures that the second ratchet 52 is subjected to a force acting toward the first end 4a, so as to keep the second ratchet 52 always in contact with the first ratchet 51, and ensure that the two are always engaged.

[0216] After the user lets go, the cover plate 21 no longer rotates toward the groove 114, and the rotating member 41 stops rotating, and the first ratchet 51 also stops rotating. At this time, under the action of the first elastic member 313, the second ratchet 52 keeps tightly meshing with the first ratchet 51, and the first ratchet 51 is restricted from rotating in the opposite direction, and then the rotating member 41 and the linked cover plate 21 are locked (at this time, the ball 43 is located in the bending section 414, and the box body 42 and the rotating member 41 are in a synchronous rotation state). In this way, the stop effect is achieved, and the cover plate 21 is kept in the second position after the external force disappears.

[0217] Thus, the one-way ratchet assembly 5 can ensure that the rotating assembly 4 and the first ratchet 51 rotate synchronously when the ball 43 plays a stopping function, and ensure that the rotating assembly 4 does not rotate but only the ball 43 rotates with the transmission mechanism 44 when the ball 43 plays a resetting function.

[0218] In a specific implementation, continue to refer to Fig.16 and Fig.18 The reset mechanism 24 may include a torsion spring 241 , one end of the torsion spring 241 is directly or indirectly connected to the cover plate 21 , and the other end of the torsion spring 241 is fixed to the groove 114 .

[0219] Specifically, the torsion spring 241 may be sleeved on the portion of the gear shaft 441 extending from the through hole 451, and respectively connected to the end of the gear shaft 441 and the wall of the fixing bracket 45 with the through hole 451. For example, the wall of the fixing bracket 45 with the through hole 451 may be provided with a fixing pile 454 for fixing the end of the torsion spring 241. Thus, the torsion spring 241 is connected to the shaft of the transmission mechanism 44 to achieve indirect connection with the cover plate 21.

[0220] In a specific implementation, the fixed bracket 45 may further include an upper cover 455, which is disposed above the box body 42 to cooperate with the fixed bracket 45 to limit the movement of the rotating assembly 4 in the z direction. In this way, upper and lower limit positions are achieved to prevent the rotating assembly 4 from unexpected displacement during rotation.

[0221] In a typical application scenario, the cover plate 21 is Fig.12 and Fig.13 The first position shown is Fig.14 and Fig.15 The motion process of the second position rotation may include: pressing the cover plate 21 at the initial position (e.g., the first position), and the cover plate 21 rotates with the transmission mechanism 44. At this time, the torsion spring 241 is twisted to generate a torsional force. At the same time, the end gear (e.g., the first gear 442) of the transmission mechanism 44 drives the box body 42 to rotate around the axis through the meshing input shaft 421. The box body 42 rotates and moves with the ball 43, and the ball 43 rotates to the bending section 414 and drives the rotating member 41 to rotate. The second ratchet 52 does not work at this time.

[0222] After letting go, the torsion spring 241 provides a reset torque, causing the transmission mechanism 44 to rotate. The transmission mechanism 44 drives the box body 42 to rotate, and the box body 42 rotates a small angle with the ball 43. At this time, the one-way ratchet assembly 5 works, causing the rotating member 41 to stop moving, and the ball 43 can no longer move after moving along the bending section to the peach-heart feature of the peach-heart mechanism (for example, the end of the bending section 414), thereby causing the cover plate 21 to stop at a certain position. The position of the cover plate 21 at this time can be recorded as the second position.

[0223] The movement process of the cover plate 21 returning from the second position to the first position may include: for the cover plate 21 stopped at a certain position, the cover plate 21 is pressed inward again to drive the transmission mechanism 44 to rotate, and the first gear 442 rotates to drive the box body 42 to rotate. The box body 42 drives the ball 43 to cross the peach heart feature of the peach heart mechanism and move forward by a certain angle (for example, from the end of the bending section 414 toward the connection with the second track 413), and the second ratchet 52 does not work at this time. After the pressing force is released, the ball 43 will rotate in the reverse direction along the second track 413. During the reverse rotation, the peach heart mechanism does not work, and the cover plate 21 is reset to the initial position under the torsional force of the torsion spring 421.

[0224] From the above, the hidden handle shape provided in this embodiment makes the appearance of the entire household appliance 6 more beautiful, and the cover plate 21 can be stopped at any position, will not squeeze the user's fingers, and the user's operating experience is more humane. Specifically, the cover plate 21 used to hide the handle portion 22 covers the handle operation space when not in use (for example, closes the opening 114 to cover the internal structure of the groove 114) and is flush with the front panel 112. When in use, press the cover plate 21 inward, the cover plate 21 rotates and can be stopped at any position, and the handle operation position is exposed (for example, at least a portion of the opening 114 is exposed to expose the operation space) so that the user can pull out the door 11. When the door 11 is pushed back into place, the cover plate 21 can be automatically reset to the initial position by gently pressing it again.

[0225] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even when only a single embodiment is described with respect to specific features. The feature examples provided in this disclosure are intended to be illustrative rather than limiting, unless otherwise stated. In specific implementations, the technical features of one or more dependent claims may be combined with the technical features of the independent claims, and the technical features from the corresponding independent claims may be combined in any appropriate manner rather than just by the specific combinations listed in the claims.

[0226] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A household appliance comprising: A box (10) defines at least one chamber (101); a door (11) movably connected to the front of the box (10) to open or close at least a portion of the chamber (101); characterized in that the door (11) comprises: A door body (110) having a groove (114) open toward a front surface (11a) of the door (11); a handle assembly (2) disposed in the groove (114), the handle assembly (2) comprising a cover plate (21) and a handle portion (22), the cover plate (21) having a first side (21a) and a second side (21b) opposite to each other, the first side (21a) being hinged to the groove (114), the handle portion (22) being disposed toward the second side (21b), and the cover plate (21) being rotatable between a first position and a second position; a stop mechanism (3), arranged in the groove (114), the stop mechanism (3) being used to keep the cover plate (21) at the second position; The cover plate (21) located at the first position closes the opening (115) of the groove (114), and the cover plate (21) located at the second position exposes at least a portion of the opening (115).

2. The household appliance according to claim 1, characterized in that The cover plate (21) located at the second position is more recessed toward the box body (10) than that at the first position; and / or, an operating space for a hand to be inserted is formed between the cover plate (21) located at the second position and the handle portion (22); and / or, The handle portion (22) includes a front wall (114a) of the groove (114); and / or, During the movement of the door (11) relative to the box body (10), the cover plate (21) is maintained at the second position under the action of the stop mechanism (3).

3. The household appliance according to claim 1, characterized in that: The handle assembly (2) comprises a linkage portion (23) linked to the cover plate (21), and the stop mechanism (3) comprises a locking portion (31) for locking the linkage portion (23) when the cover plate (21) is rotated to the second position.

4. The household appliance according to claim 3, characterized in that The linkage portion (23) comprises: a connection portion (231) extending backward from the cover plate (21); a guide groove (12) is provided on the side wall (114f) of the groove (114); and the connection portion (231) moves along the guide groove (12) as the cover plate (21) rotates.

5. The household appliance according to claim 4, characterized in that The connecting portion (231) comprises a first connecting member (234) arranged on the first side (21a) and a second connecting member (235) arranged on the second side (21b); the guide groove (12) comprises a first guide rail (121) and a second guide rail (122); during the rotation of the cover plate (21), the first connecting member (234) moves along the first guide rail (121) and the second connecting member (235) moves along the second guide rail (122).

6. The household appliance according to claim 5, characterized in that The first guide rail (121) forms a line, and the second guide rail (122) forms a closed figure connected end to end; and / or, the first guide rail (121) includes a first guide rail segment (124), the second guide rail (122) includes a second guide rail segment (125), a third guide rail segment (126) and a fourth guide rail segment (127), the second guide rail segment (125), the third guide rail segment (126) and the fourth guide rail segment (127) together form a triangle or a quasi-triangle, and the third guide rail segment (126) is farther away from the opening (115) than the second guide rail segment (125) and the fourth guide rail segment (127).

7. The household appliance according to claim 6, characterized in that The first guide rail segment (124) extends in a straight line; and / or the third guide rail segment (126) includes a straight extension portion; and / or the second guide rail segment (125) and / or the fourth guide rail segment (127) include an arc-shaped extension portion; and / or the second guide rail segment (125) and the fourth guide rail segment (127) partially overlap from the end close to the opening (115), and the ends of the second guide rail segment (125) and the fourth guide rail segment (127) away from the opening (115) respectively form the end points of the third guide rail segment (126) along the extension direction.

8. The household appliance according to claim 6, characterized in that During the rotation of the cover plate (21) from the first position to the second position, the second connecting member (235) moves along the second guide rail segment (125) and the third guide rail segment (126); and / or, during the rotation of the cover plate (21) from the second position to the first position, the second connecting member (235) moves along the fourth guide rail segment (127).

9. The household appliance according to claim 6, characterized in that: The first guide rail segment (124) is parallel to the third guide rail segment (126); and / or the second guide rail segment (125) and the fourth guide rail segment (127) extend rearward and upward from the opening (115); and / or the first guide rail segment (124) extends rearward and downward from the opening (115); and / or the length of the first guide rail segment (124) matches the length of the third guide rail segment (126); and / or the second guide rail segment (125) is closer to the opening (115) than the fourth guide rail segment (127).

10. The household appliance according to claim 6, characterized in that The fourth guide rail segment (127) has a stop boss (32) for cooperating with the second connecting member (235) to keep the cover plate (21) in the second position; and / or, a guide slope (126b) is formed at one end of the third guide rail segment (126) facing the second guide rail segment (125).

11. The household appliance according to claim 4, characterized in that The locking portion (31) comprises: a second elastic member (311), having a seventh end (311a) and an eighth end (311b) opposite to each other along the elastic force direction, the seventh end (311a) being fixed to the groove (114), and the eighth end (311b) being connected to the connecting portion (231), and the second elastic member (311) being in a stretched state when the cover plate (21) is located at the second position, so as to keep the connecting portion (231) at a preset position of the guide groove (12).

12. The household appliance according to claim 4, characterized in that The linkage portion (23) further comprises: a connecting rod (236), one end of the connecting rod (236) being connected to the connecting portion (231), and the other opposite end of the connecting rod (236) being used for contacting a push rod (13), wherein the push rod (13) is configured to be supported by the connecting rod (236) and move toward the box body (10).

13. The household appliance according to claim 1, characterized in that The handle assembly (2) further comprises: a reset mechanism (24) disposed in the groove (114), the reset mechanism (24) being used to drive the cover plate (21) to return from the second position to the first position.

14. The household appliance according to claim 13, characterized in that The reset mechanism (24) comprises: a push rod (13), the end of which extends from the groove (114) toward the box body (10); as the door (11) moves toward the box body (10), the push rod (13) abuts against the box body (10) and pushes the cover plate (21) in the opposite direction to return from the second position to the first position.

15. The household appliance according to claim 14, characterized in that When the door (11) closes at least a portion of the chamber (101), a non-zero gap exists between the push rod (13) and the box body (10); and / or the push rod (13) contacts the box body (10) before the cover plate (21) rotates to the second position.

Images