Refrigeration equipment

Abstract

The invention provides refrigeration equipment which comprises a box body, a door body and a hinge device, the door body is provided with a movable pivoting end and an opening and closing end which are oppositely arranged, and the hinge device comprises at least two hinge assemblies arranged at the movable pivoting end at intervals; the hinge assembly comprises a first connecting rod and a second connecting rod which are hinged to the refrigerator body, and a third connecting rod and a fourth connecting rod which are hinged to the door body, and the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are mutually hinged; only one of the at least two hinge assemblies further comprises a door closing mechanism used for assisting door closing. The self-service door closing force applied to the door body by the whole hinge device can be reduced, so that the hinge device can reduce the opening force required by a user to open the door body on the basis of realizing assisted door closing and keeping the closed state of the door body; meanwhile, the size of each hinge assembly can be reduced, so that the storage space in the box body can be increased.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and more particularly to a refrigeration device. Background Technology

[0002] With social development and the gradual improvement of living standards, people's demand for aesthetic appeal in home decoration is becoming increasingly prominent. Embedding refrigeration equipment (such as refrigerators) within external environmental components, such as cabinets or walls, to achieve a unified interior design style has become a popular approach. However, traditional refrigeration equipment doors are designed to rotate around a fixed axis to open and close. During this rotation, the pivot point of the door protrudes towards the external environmental component, causing interference and affecting the opening of the door and the use of the refrigeration equipment.

[0003] Some existing refrigeration equipment uses a hinge device that can drive the door to translate during the door's rotation to achieve a movable connection between the door and the cabinet. When the door is opened relative to the cabinet, under the drive of the hinge device, the door rotates and translates along a preset trajectory, which can avoid interference between the door and external environmental components.

[0004] To integrate a door closer that assists in closing and a damper that prevents excessive closing force, some existing hinge devices are designed as complex linkage hinges. These linkage hinges integrate both the damper and the door closer. On one hand, this results in a higher closing force on the door in refrigeration equipment, as both the door closer and damper are integrated into the linkage hinges at both ends of the door. Consequently, a higher opening force is required, hindering the user's ability to open the door smoothly and negatively impacting the user experience. On the other hand, because the linkage hinge needs to integrate the damper and door closer, installation space is typically provided for these components, resulting in a larger hinge size and affecting the storage capacity of the refrigeration equipment. Summary of the Invention

[0005] This application provides a refrigeration device.

[0006] To achieve the above objectives, the technical solution provided in this application is as follows: A refrigeration device includes a housing, a door, and a hinge device movably connected to the housing. The door has a movable pivot end and an opening and closing end disposed opposite to each other. The hinge device includes at least two sets of hinge components spaced apart from the movable pivot end.

[0007] The hinge assembly includes a first link and a second link hinged to the box body, and a third link and a fourth link hinged to the door body. The first link, the second link, the third link, and the fourth link are hinged to each other.

[0008] Only one of the at least two sets of hinge assemblies further includes a door closing mechanism for assisting in closing the door.

[0009] In one embodiment of this application, the hinge assembly having the closing mechanism is located at the upper end of the door body.

[0010] In one embodiment of this application, the hinge assembly having the closing mechanism is located at the lower end of the door body.

[0011] In one embodiment of this application, the opening end has a handle portion, and the hinge assembly furthest from the handle portion among the at least two sets of hinge assemblies has the closing mechanism; or, the hinge assembly at the end furthest from the handle portion in the movable pivot end has the closing mechanism.

[0012] In one embodiment of this application, the refrigeration device includes two doors arranged side by side in a left-right direction and two hinge devices corresponding one-to-one with the two doors; the hinge components of the two hinge devices having the door closing mechanism are located on the same side.

[0013] In one embodiment of this application, the refrigeration device includes two doors arranged side by side in a left-right direction and two hinge devices corresponding one-to-one with the two doors; the hinge components of the two hinge devices having the door closing mechanism are located on opposite sides.

[0014] In one embodiment of this application, the refrigeration device includes two doors arranged side by side in a vertical direction, two hinge devices corresponding one-to-one with the two doors, and a crossbeam located between the two doors; the hinge assembly having the closing mechanism in the hinge device is mounted on the crossbeam; or the hinge assembly having the closing mechanism in the hinge device is located at the end of the movable pivot point away from the crossbeam; or the hinge assembly having the closing mechanism in one hinge device is mounted on the crossbeam, and the hinge assembly having the closing mechanism in the other hinge device is located at the end of the movable pivot point away from the crossbeam.

[0015] In one embodiment of this application, the door body includes a first door body, a second door body arranged side by side with the first door body in the left-right direction, a third door body located below the first door body, and a fourth door body located below the second door body, and the hinge device corresponds one-to-one with the first door body, the second door body, the third door body, and the fourth door body.

[0016] In one embodiment of this application, the hinge assembly at the upper end of each hinge device has the closing mechanism.

[0017] In one embodiment of this application, the housing has a fixed pivot end corresponding to the movable pivot end, the second link is located on the side of the first link away from the fixed pivot end, the fourth link is located on the side of the third link away from the movable pivot end, and the end of the fourth link away from the door body is hinged to the end of the second link away from the housing body; the closing mechanism includes a push member disposed on one of the second link and the fourth link, and a cam member disposed on the other for cooperating with the push member.

[0018] Compared with the prior art, the beneficial effects of this application are as follows: In the refrigeration equipment of this application, among the multiple six-bar hinge assemblies corresponding to a door, only one hinge assembly integrates a door closing mechanism, while the other hinge assemblies are pure six-bar structures, i.e., without a door closing mechanism or damper. On the one hand, this can reduce the self-closing force exerted by the hinge device on the door, thereby enabling the hinge device to assist in closing the door and maintain the door in a closed state, while also reducing the opening force required for the user to open the door, thus improving the user experience. On the other hand, since some hinge assemblies do not need to install door closing mechanisms and dampers, there is no need to reserve installation space for door closing mechanisms and dampers during the design process. At the same time, hinge assemblies with only door closing mechanisms do not need to reserve installation space for dampers during the design process, thereby reducing the volume of each hinge assembly, i.e., reducing the installation position size on the cabinet, and thus increasing the storage space inside the cabinet. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the refrigeration equipment in a specific embodiment of this application;

[0020] Figure 2 yes Figure 1 A schematic diagram of the refrigeration equipment after the door body has been removed;

[0021] Figure 3 This is a schematic diagram of the structure of the second hinge assembly in a specific embodiment of this application;

[0022] Figure 4 yes Figure 3 Exploded view;

[0023] Figure 5 This is a schematic diagram of the structure of the first hinge assembly in a specific embodiment of this application;

[0024] Figure 6 yes Figure 5 Exploded views of the second and fourth links in the diagram;

[0025] Figure 7 yesFigure 5 A schematic diagram of the door closing mechanism in the diagram;

[0026] Figure 8 yes Figure 7 Exploded view;

[0027] Wherein: 100, refrigeration equipment; 1, cabinet; P3, fixed pivot end; 11, crossbeam; 2, door; P1, movable pivot end; P2, opening and closing end; 3, hinge device; 31, hinge assembly; 311, first connecting rod; 312, second connecting rod; 3121, limiting groove; 313, third connecting rod; 314, fourth connecting rod; 315, fixed hinge component; 3151, insertion hole; 316, movable hinge component; A, first hinge point; B 1. Second hinge point; C. Third hinge point; D. Fourth hinge point; E. Fifth hinge point; F. Sixth hinge point; G. Seventh hinge point; 31a. First hinge assembly; 31b. Second hinge assembly; 4. Door closing mechanism; 41. Pushing component; 411. Connecting seat; 412. Force-applying end; 413. Elastic element; 414. Limiting shaft; 415. Damping rod; 42. Cam component; 421. Cam body; 422. Connecting part. Detailed Implementation

[0028] The following will be combined with the appendix Figures 1-8 The specific embodiments shown herein provide a detailed description of this application. However, these embodiments do not limit this application, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of this application.

[0029] The terms describing position and direction used in this application refer to the side where the door is located during normal use of the refrigeration equipment. That is, the door's position relative to the cabinet is considered "front," with the door located in front of the cabinet, and correspondingly, the cabinet located behind the door. Furthermore, the terms "first," "second," "third," "fourth," etc., used in this application are only used to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In addition, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should also be noted that, unless otherwise expressly specified and limited, the terms "set," "connected," and "fixed" should be interpreted broadly. For example, a connection can be a direct connection or an indirect connection through an intermediate medium; it can be a fixed connection, a movable connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] It should be noted that, unless otherwise specified, the specific embodiments and features disclosed in this application can be combined with each other.

[0031] Combination Figures 1-8 As shown, this application provides a refrigeration device 100, which includes a housing 1, a door 2, and a hinge device 3 movably connected to the door 2 to the housing 1. The door 2 has a movable pivot end P1 and an opening / closing end P2 disposed opposite to each other, and the hinge device 3 includes at least two sets of hinge assemblies 31 spaced apart from the movable pivot end P1.

[0032] The movable pivot end P1 refers to the end of the door body 2 closest to the hinge device 3. During the process of the door body 2 rotating open, the angle formed between the door body 2 and the housing 1 at the movable pivot end P1 gradually increases. During the process of the door body 2 rotating closed, the angle formed between the door body 2 and the housing 1 at the movable pivot end P1 gradually decreases.

[0033] In one specific embodiment, the hinge device 3 includes two sets of hinge assemblies 31 disposed at opposite ends of the movable pivot end P1 to improve the stability of the movable connection between the door body 2 and the housing 1. In an embodiment where the refrigeration equipment 100 is a vertical refrigeration equipment, the two sets of hinge assemblies 31 are disposed at the ends of the movable pivot end P1, that is, one set is disposed at the upper end of the door body 2 and the other set is disposed at the lower end of the door body 2. Of course, this is not a limitation. In other embodiments, the two sets of hinge assemblies 31 may not be disposed at the ends of the movable pivot end P1, but may be disposed at intervals between the two ends of the movable pivot end P1. Alternatively, in other embodiments, more than two sets of hinge assemblies 31 may be provided.

[0034] In this embodiment, the hinge assembly 31 includes a first link 311 and a second link 312 hinged to the housing 1, and a third link 313 and a fourth link 314 hinged to the door 2. The first link 311, the second link 312, the third link 313, and the fourth link 314 are hinged to each other. That is, the first link 311, the second link 312, the third link 313, the fourth link 314, the housing 1, and the door 2 together form a six-link structure. In one specific embodiment, the hinge assembly 31 further includes a fixed hinge component 315 fixed to the housing 1 and a movable hinge component 316 fixed to the door 2. The first connecting rod 311 and the second connecting rod 312 are hinged to the fixed hinge component 315, and the third connecting rod 313 and the fourth connecting rod 314 are hinged to the movable hinge component 316, so that the hinge assembly 31 is modularly configured as a whole, which facilitates the assembly and disassembly of the hinge assembly 31 from the door 2 and the housing 1.

[0035] In some optional embodiments, the housing 1 has a fixed pivot end P3 corresponding to the movable pivot end P1. The second connecting rod 312 is located on the side of the first connecting rod 311 away from the fixed pivot end P3. That is, the first connecting rod 311 is hinged to the first hinge point A of the fixed hinge member 315, and the second connecting rod 312 is hinged to the second hinge point B of the fixed hinge member 315. The second hinge point B is located on the side of the first hinge point A away from the fixed pivot end P3. The fourth connecting rod 314 is located on the side of the third connecting rod 313 away from the movable pivot end P1. That is, the third connecting rod 313 is hinged to the third hinge point C of the movable hinge member 316, and the fourth connecting rod 314 is hinged to the fourth hinge point D of the movable hinge member 316. The fourth hinge point D is located on the side of the third hinge point C away from the movable pivot end P1. The end of the fourth link 314 away from the door body 2 is hinged to the end of the second link 312 away from the box body 1. That is, the end of the fourth link 314 away from the fourth hinge point D and the end of the second link 312 away from the second hinge point B are hinged at the fifth hinge point E. The end of the first link 311 away from the first hinge point A is hinged to the sixth hinge point F on the fourth link 314, and the sixth hinge point F is located between the fourth hinge point D and the fifth hinge point E. The end of the third link 313 away from the third hinge point C is hinged to the seventh hinge point G on the first link 311, and the seventh hinge point G is located between the first hinge point A and the sixth hinge point F. Through the aforementioned hinged connection method, the first link 311, the second link 312, the third link 313, and the fourth link 314 are hinged to each other. During the opening and closing of the door 2, the first link 311, the second link 312, the third link 313, and the fourth link 314 are linked together to drive the door 2 to move along a preset trajectory. Of course, the structure in which the first link 311, the second link 312, the third link 313, and the fourth link 314 are hinged to each other is not limited to this.

[0036] In the hinge device 3, only one of the at least two sets of hinge components 31 further includes a door closing mechanism 4 for assisting in closing the door. In this application, among the multiple six-bar hinge assemblies 31 corresponding to a door 2, only one hinge assembly 31 integrates a closing mechanism 4, while the other hinge assemblies 31 are pure six-bar structures, i.e., they do not have a closing mechanism 4 or a damper. On the one hand, this can reduce the self-closing force exerted by the hinge device 3 on the door 2, thereby enabling the hinge device 3 to assist in closing the door and keep the door 2 closed, while also reducing the opening force required for the user to open the door 2, thus improving the user experience. On the other hand, since some hinge assemblies 31 do not need to install the closing mechanism 4 and the damper, there is no need to reserve installation space for the closing mechanism 4 and the damper during the design. At the same time, the hinge assembly 31 that only has the closing mechanism 4 does not need to reserve installation space for the damper during the design, thereby reducing the volume of each hinge assembly 31, i.e., reducing the installation position size on the housing 1, thereby increasing the storage space inside the housing 1.

[0037] For ease of description, the hinge assembly 31 with the closing mechanism 4 will be referred to as the first hinge assembly 31a in some descriptions, and the hinge assembly 31 without the closing mechanism 4 and the damper will be referred to as the second hinge assembly 31b. That is, the hinge device 3 includes only one first hinge assembly 31a and at least one second hinge assembly 31b.

[0038] For a single door 2, when the door 2 is divided into an upper end and a lower end, in some optional embodiments, the hinge assembly 31 with the closing mechanism 4 is located at the upper end of the door 2, that is, the first hinge assembly 31a is located at the upper end of the door 2, and the second hinge assembly 31b is located at the lower end of the door 2. When the door 2 is in the closed state, the closing mechanism 4 acts on the upper end of the door 2, so that the upper end of the door 2 fits against the housing 1, preventing the door 2 from tipping over under its own weight, thereby improving the sealing performance of the door 2 and preventing cold leakage. Of course, this is not a limitation. In other optional embodiments, the hinge assembly 31 with the closing mechanism 4 can also be located at the lower end of the door 2, that is, the first hinge assembly 31a can also be located at the lower end of the corresponding door 2, and the second hinge assembly 31b can be located at the upper end of the door 2.

[0039] For a single door 2, when defining the opening end P2 as having a handle, in some optional embodiments, the hinge assembly 31 furthest from the handle among the at least two sets of hinge assemblies 31 has the closing mechanism 4. That is, the hinge assembly 31 at the end of the movable pivot end P1 furthest from the handle is the first hinge assembly 31a. This makes the lever arm between the handle and the closing mechanism 4 longer, thereby further reducing the opening force required for the user to open the door 2 and improving the user experience. Of course, this is not a limitation. In other embodiments, the hinge assembly 31 closest to the handle among the at least two sets of hinge assemblies 31 may also have the closing mechanism 4, reducing the lever arm between the handle and the closing mechanism 4 and improving the response efficiency of the closing mechanism 4 when the user acts on the handle.

[0040] Specifically, the hinge assembly 31 furthest from the handle portion among the at least two sets of hinge assemblies 31 mentioned above, having the closing mechanism 4, or the hinge assembly 31 at the end of the movable pivot P1 furthest from the handle portion, having the closing mechanism 4, means that: when the handle portion is located near the lower end of the door body 2, i.e., the hinge assembly 31 located at the upper end of the door body 2, is the hinge assembly 31 with the closing mechanism 4; and the hinge assembly 31 without the closing mechanism 4 and damper is located at the lower end of the door body 2; when the handle portion is located near the upper end of the door body 2, i.e., the hinge assembly 31 with the closing mechanism 4 is located at the lower end of the door body 2; and the hinge assembly 31 without the closing mechanism 4 and damper is located at the upper end of the door body 2; when the handle portion is located near the middle section in the height direction of the door body 2, the hinge assembly 31 with the closing mechanism 4 can be selectively located at the upper or lower end of the door body 2.

[0041] When the refrigeration equipment 100 has two doors 2 arranged side by side in the left-right direction and two hinge devices 3 corresponding one-to-one with the two doors 2, the hinge components 31 of the two hinge devices 3 with the door closing mechanism 4 can be arranged on the same side, that is, the first hinge components 31a of the two doors 2 are located on the same side, such as being located at the upper end of the corresponding door 2 or at the lower end of the corresponding door 2 at the same time; or the hinge components 31 of the two hinge devices 3 with the door closing mechanism 4 can be arranged on opposite sides, that is, the first hinge components 31a of the two doors 2 are located on opposite sides, such as the first hinge component 31a being provided at the upper end of one door 2 and the first hinge component 31a being provided at the lower end of one door 2.

[0042] In an embodiment where the hinge assembly 31 of the closing mechanism 4 is located on the same side in two door bodies 2 arranged side by side in the left-right direction, it is known that the handles in the two door bodies 2 are generally arranged correspondingly. Therefore, it can also be seen that the hinge assembly 31 at the end of the corresponding movable pivot P1 that is away from the handle is set to have the closing mechanism 4 in both door bodies 2, or the hinge assembly 31 at the end of the corresponding movable pivot P1 that is close to the handle is set to have the closing mechanism 4.

[0043] In an embodiment where the hinge assembly 31 of the closing mechanism 4 is located on opposite sides of two door bodies 2 arranged side by side in the left-right direction, it is known that the handles of the two door bodies 2 are generally arranged correspondingly. Therefore, it can also be seen that one of the two door bodies 2 has a hinge assembly 31 far from the handle with a closing mechanism 4, and the other has a hinge assembly 31 near the handle with a closing mechanism 4.

[0044] Meanwhile, in an embodiment where the hinge assembly 31 of the closing mechanism 4 in two door bodies 2 arranged side by side along the left and right direction is located on opposite sides, if one of the two door bodies 2 has a flip beam, the hinge assembly 31 at the lower end of the door body 2 with the flip beam can be configured to have the closing mechanism 4, while the hinge assembly 31 at the upper end of the other door body 2 without the flip beam can be configured to have the closing mechanism 4. That is, the first hinge assembly 31a is provided at the lower end of the door body 2 with the flip beam, and the first hinge assembly 31a is provided at the upper end of the door body 2 without the flip beam. It is known that for the door body 2 with a tilting beam, the housing 1 is provided with a guide limiting groove that cooperates with the tilting beam. When the door body 2 with the tilting beam is in the closed state, the cooperation between the tilting beam and the guide limiting groove can restrict the door body 2 to prevent it from tipping over. Therefore, at this time, even if the closing mechanism 4 is set on the hinge assembly 31 located at the lower end of the door body 2, the door body 2 will not be at risk of tipping over. For the other door body 2 without a tilting beam, by setting the closing mechanism 4 at the hinge assembly 31 at its upper end, the door body 2 is prevented from tipping over under its own weight, which can improve the sealing performance of the door body 2 and prevent cold leakage.

[0045] When the refrigeration equipment 100 has two doors 2 arranged side by side in the vertical direction, two hinge devices 3 corresponding to the two doors 2, and a crossbeam 11 located between the two doors 2, the lower hinge assembly 31 of the upper door 2 is fixed to the crossbeam 11, and the upper hinge assembly 31 of the lower door 2 is fixed to the crossbeam 11. At this time, the hinge assembly 31 with the closing mechanism 4 in the hinge device 3 can be installed on the crossbeam 11. That is, for the upper door body 2, the lower end is provided with the first hinge assembly 31a, and for the lower door body 2, the upper end is provided with the first hinge assembly 31a. At the same time, it is known that in this kind of refrigeration equipment 100, generally, the handle of the upper door body 2 is located near the lower end, and the handle of the lower door body 2 is located near the upper end. At this time, it can also be regarded as that the hinge assembly 31 of the corresponding movable pivot end P1 near the handle in the hinge device 3 of both door bodies 2 is set to have the closing mechanism 4.

[0046] When the refrigeration equipment 100 has two doors 2 arranged side by side in the vertical direction, two hinge devices 3 corresponding one-to-one with the two doors 2, and a crossbeam 11 located between the two doors 2; it can also be configured such that the hinge assembly 31 with the closing mechanism 4 in the hinge device 3 is located at the end away from the crossbeam 11. That is, for the upper door 2, the upper hinge assembly 31 is configured to have the closing mechanism 4, and for the lower door 2, the lower hinge assembly 31 is configured to have the closing mechanism 4. At the same time, it is known that in this kind of refrigeration equipment 100, generally, the handle of the upper door 2 is located near the lower end, and the handle of the lower door 2 is located near the upper end. In this case, it can also be regarded as the hinge assembly 31 at the end away from the handle in the corresponding movable pivot P1 of the hinge device 3 in both doors 2 is configured to have the closing mechanism 4.

[0047] When the refrigeration equipment 100 has two doors 2 arranged side by side in the vertical direction, two hinge devices 3 corresponding one-to-one with the two doors 2, and a crossbeam 11 located between the two doors 2; it can also be configured such that the hinge assembly 31 of the door closing mechanism 4 in one hinge device 3 is installed on the crossbeam 11, and the hinge assembly 31 of the door closing mechanism 4 in the other hinge device 3 is located at the end away from the crossbeam 11. For example, for the upper door 2, the hinge assembly 31 at its upper end is configured to have a closing mechanism 4, that is, the hinge assembly 31 of the upper door 2 away from the handle is configured to have a closing mechanism 4. In this case, for the lower door 2, the hinge assembly 31 at its upper end is configured to have a closing mechanism 4, that is, the hinge assembly 31 of the lower door 2 near the handle is configured to have a closing mechanism 4; or, for the upper door 2, the hinge assembly 31 at its lower end is configured to have a closing mechanism 4, that is, the hinge assembly 31 of the upper door 2 near the handle is configured to have a closing mechanism 4. In this case, for the lower door 2, the hinge assembly 31 at its lower end is configured to have a closing mechanism 4, that is, the hinge assembly 31 of the lower door 2 away from the handle is configured to have a closing mechanism 4.

[0048] Combination Figure 1 As shown, in one specific embodiment, the refrigeration device 100 includes four doors 2 and four hinge devices 3 corresponding to the four doors 2. Specifically, each door 2 includes a first door 21, a second door 22 arranged side by side with the first door 21 in the left-right direction, a third door 23 located below the first door 22, and a fourth door 24 located below the second door 23.

[0049] It is understood that the first door body 21 and the second door body 22, the third door body 23 and the fourth door body 24 are the two door bodies 2 arranged side by side in the left-right direction as mentioned above; the first door body 21 and the third door body 23, the second door body 22 and the fourth door body 24 are the two door bodies 2 arranged side by side in the up-down direction as mentioned above. The position of the hinge assembly 31 with the closing mechanism 4 in each door body 2 can be set according to specific requirements.

[0050] In one specific embodiment, the first door body 21, the second door body 22, the third door body 23, and the fourth door body 24 are all configured such that the hinge assembly 31 at the upper end of the corresponding door body 2 is the first hinge assembly 31a, and the hinge assembly 31 at the lower end of the corresponding door body 2 is the second hinge assembly 31b. Of course, this is not a limitation. In other embodiments, the upper ends of the first door body 21 and the second door body 22 can be configured as the first hinge assembly 31a, and the lower ends of the third door body 23 and the fourth door body 24 can be configured as the first hinge assembly 31a; or, the lower ends of the first door body 21 and the second door body 22 can be configured as the first hinge assembly 31a, and the upper ends of the third door body 23 and the fourth door body 24 can be configured as the first hinge assembly 31a. It is understood that the positions of the hinge assemblies 31 with the closing mechanism 4 in each door body 2 can be set according to specific needs, and will not be exhaustively listed here.

[0051] In some optional embodiments, the door closing mechanism 4 includes a pusher 41 disposed on one of the second link 312 and the fourth link 314, and a cam 42 disposed on the other and used to cooperate with the pusher 41. In the final stage of closing the door 2, the pusher 41 acts on the cam 42 to drive the door 2 to close automatically.

[0052] In one specific embodiment, the pushing component 41 is disposed on the second connecting rod 312, and the cam component 42 is disposed on the fourth connecting rod 314. Specifically, the pushing component 41 includes a connecting seat 411 connected to the second connecting rod 312, a force-applying end 412 opposite to the connecting seat 411 and for cooperating with the cam component 42, and an elastic member 413 connecting the connecting seat 411 and the force-applying end 412. The force-applying end 412 has a limiting shaft 414, and the second connecting rod 312 is provided with a limiting groove 3121 that cooperates with the limiting shaft 414, thereby limiting the movement direction and stroke of the limiting shaft 414.

[0053] In some optional embodiments, the extending direction of the limiting groove 3121 is consistent with the deformation direction of the elastic member 413, thereby making the force direction of the closing mechanism 4 relatively singular and the movement direction of the elastic member 413 singular, which can improve the stability of the closing mechanism 4.

[0054] In one specific embodiment, the pushing component 41 includes a damping rod 415 connected between the connecting seat 411 and the force-applying end 412, and the elastic element 413 is a spring sleeved on the damping rod 415. In this case, the extending direction of the aforementioned limiting groove 3121 is consistent with the axial direction of the damping rod 415.

[0055] In some optional embodiments, the cam component 42 is riveted to the fourth link 314, which improves the firmness and stability of the fixed connection between the cam component 42 and the fourth link 314, and improves the smoothness of opening and closing the door 2.

[0056] Specifically, the fourth link 314 and the second link 312 are hinged together via a hinge shaft. The cam component 42 includes a cam body 421 sleeved on the hinge shaft and a connecting part 422 connected to the cam body 421. The connecting part 422 is riveted to the fourth link 314. It can be understood that in the final stage of closing the door 2, the cam body 421 cooperates with the force-applying end 412 to achieve assisted door closing.

[0057] In some optional embodiments, the fixed hinge component 315 has a socket 3151, in which a limiting pin is detachably disposed. When the door 2 is rotated open to the limiting angle, the second connecting rod 312 abuts against the limiting pin. This limits the maximum opening angle of the door 2 and prevents interference between the door 2 and external environmental components.

[0058] In one specific embodiment, for the hinge device 3 corresponding to a door body 2, the limiting pin can be provided only on one of the hinge components 31, such as the limiting pin being detachably provided only on the fixed hinge member 315 in the second hinge component 31b. Of course, this is not a limitation; in other embodiments, the limiting pin can be detachably provided on each of the hinge components 31.

[0059] In summary, in the refrigeration equipment 100 of this application, among the multiple six-bar hinge assemblies 31 corresponding to a door 2, only one hinge assembly 31 integrates a door closing mechanism 4, while the other hinge assemblies 31 are pure six-bar structures, i.e., they do not have a door closing mechanism 4 or a damper. On the one hand, this reduces the self-closing force exerted by the hinge device 3 on the door 2, thereby enabling the hinge device 3 to assist in closing the door and keep the door 2 closed, while also reducing the opening force required for the user to open the door 2, thus improving the user experience. On the other hand, since some hinge assemblies 31 do not need to install the door closing mechanism 4 and the damper, there is no need to reserve installation space for the door closing mechanism 4 and the damper during the design. At the same time, the hinge assembly 31 that only has the door closing mechanism 4 does not need to reserve installation space for the damper during the design, thereby reducing the volume of each hinge assembly 31, i.e., reducing the installation position size on the cabinet 1, and thus increasing the storage space inside the cabinet 1.

[0060] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, for example, if the technologies in different embodiments can be used in combination to achieve the corresponding effects simultaneously, the solutions are also within the protection scope of this application. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A refrigeration device (100), comprising a housing (1), a door (2), and a hinge device (3) movably connected to the housing (1), wherein the door (2) has a movable pivot end (P1) and an opening / closing end (P2) disposed opposite to each other, and the hinge device (3) comprises at least two sets of hinge assemblies (31) spaced apart from the movable pivot end (P1); characterized in that: The hinge assembly (31) includes a first link (311) and a second link (312) hinged to the box body (1), and a third link (313) and a fourth link (314) hinged to the door body (2). The first link (311), the second link (312), the third link (313), and the fourth link (314) are hinged to each other. Only one of the at least two sets of hinge assemblies (31) further includes a closing mechanism (4) for assisting in closing the door.

2. The refrigeration equipment (100) as described in claim 1, characterized in that: The hinge assembly (31) having the closing mechanism (4) is located at the upper end of the door body (2).

3. The refrigeration equipment (100) as described in claim 1, characterized in that: The hinge assembly (31) having the closing mechanism (4) is located at the lower end of the door body (2).

4. The refrigeration equipment (100) as described in claim 1, characterized in that: The opening end (P2) has a handle portion, and the hinge assembly (31) of the at least two sets of hinge assemblies (31) that is furthest from the handle portion has the closing mechanism (4); or, the hinge assembly (31) of the movable pivot end (P1) that is furthest from the handle portion has the closing mechanism (4).

5. The refrigeration equipment (100) as described in any one of claims 1 to 4, characterized in that: The refrigeration equipment (100) includes two doors (2) arranged side by side in the left-right direction and two hinge devices (3) corresponding to the two doors (2); the hinge components (31) with the door closing mechanism (4) in the two hinge devices (3) are located on the same side.

6. The refrigeration equipment (100) according to any one of claims 1 to 4, characterized in that: The refrigeration equipment (100) includes two doors (2) arranged side by side in the left-right direction and two hinge devices (3) corresponding to the two doors (2); the hinge components (31) of the two hinge devices (3) having the door closing mechanism (4) are located on opposite sides.

7. The refrigeration equipment (100) according to any one of claims 1 to 4, characterized in that: The refrigeration equipment (100) includes two doors (2) arranged side by side in the vertical direction, two hinge devices (3) corresponding one-to-one with the two doors (2), and a crossbeam (11) located between the two doors (2); the hinge assembly (31) of the hinge device (3) having the closing mechanism (4) is installed on the crossbeam (11); or the hinge assembly (31) of the hinge device (3) having the closing mechanism (4) is located at the end of the movable pivot end (P1) away from the crossbeam (11); or the hinge assembly (31) of one hinge device (3) having the closing mechanism (4) is installed on the crossbeam (11), and the hinge assembly (31) of the other hinge device (3) having the closing mechanism (4) is located at the end of the movable pivot end (P1) away from the crossbeam (11).

8. The refrigeration equipment (100) as described in any one of claims 1 to 4, characterized in that: The door (2) includes a first door (21), a second door (22) arranged side by side with the first door (21) in the left-right direction, a third door (23) located below the first door (21), and a fourth door (24) located below the second door (22). The hinge device (3) corresponds one-to-one with the first door (21), the second door (22), the third door (23), and the fourth door (24).

9. The refrigeration equipment (100) as described in claim 8, characterized in that: Each of the hinge devices (3) has the door closing mechanism (4) located at the upper end of the hinge assembly (31).

10. The refrigeration equipment (100) as described in claim 1, characterized in that: The housing (1) has a fixed pivot end (P3) corresponding to the movable pivot end (P1), the second link (312) is located on the side of the first link (311) away from the fixed pivot end (P3), the fourth link (314) is located on the side of the third link (313) away from the movable pivot end (P1), and the end of the fourth link (314) away from the door body (2) is hinged to the end of the second link (312) away from the housing (1); the closing mechanism (4) includes a push member (41) provided on one of the second link (312) and the fourth link (314), and a cam member (42) provided on the other and used to cooperate with the push member (41).

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