Refrigeration equipment

Abstract

The utility model provides refrigeration equipment, and belongs to the technical field of refrigeration equipment. The refrigeration equipment comprises a box body, a drawer door and a bracket assembly, a chamber is arranged in the box body, and the drawer door is used for closing an opening of the chamber; the support assembly comprises a door body support, a drawer guide rail and a connecting rod mechanism. The door body support is connected with the side face, facing the chamber, of the drawer door, the drawer guide rail is connected with the inner wall of the chamber, and the door body support is movably connected with the drawer guide rail through a connecting rod mechanism. According to the refrigeration equipment, the door opening force of the drawer door is reduced, and the use convenience of the drawer door is improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a refrigeration device. Background Technology

[0002] A French door refrigerator is a type of refrigerator that combines practicality and aesthetics. The freezer compartment of a French door refrigerator typically features a large-capacity drawer design, offering the advantages of large capacity and efficient partitioning.

[0003] However, after the drawer door is closed, the pressure difference between the inside and outside of the freezer compartment requires a large opening force, which reduces the user's convenience. Utility Model Content

[0004] This invention provides a refrigeration device that can solve the problem that the required opening force is large after the drawer door is closed due to the pressure difference between the inside and outside of the freezer compartment.

[0005] The technical solution is as follows:

[0006] A refrigeration device, the refrigeration device comprising: a cabinet, drawer doors, and a support assembly;

[0007] The box body has a compartment, and the drawer door is used to close the opening of the compartment;

[0008] The bracket assembly includes a door bracket, drawer slides, and a linkage mechanism;

[0009] The door support is connected to the side of the drawer door facing the compartment, the drawer rail is connected to the inner wall of the compartment, and the door support and the drawer rail are movably connected by the linkage mechanism.

[0010] In some embodiments, the drawer door includes a closed state and a depressurized state;

[0011] In the closed state, the drawer door is parallel to the side of the cabinet, and the drawer door is sealed to the opening of the compartment;

[0012] In the depressurized state, the drawer door and the side of the cabinet are tilted relative to each other, so that a depressurization gap is formed between the drawer door and at least one edge of the opening of the compartment.

[0013] In some embodiments, in the depressurized state, the distance between the top edge of the drawer door and the opening of the compartment is L1, and the distance between the bottom edge of the drawer door and the opening of the compartment is L2, wherein L1 > L2 ≥ 0.

[0014] In some embodiments, the linkage mechanism includes a first link, a second link, and a third link;

[0015] The first link and the second link are connected by a cross hinge.

[0016] One end of the first connecting rod is rotatably connected to the drawer guide rail, and the other end of the first connecting rod is rotatably connected to the door bracket; one end of the second connecting rod is rotatably connected to the drawer guide rail, and the other end of the second connecting rod is rotatably connected to one end of the third connecting rod, and the other end of the third connecting rod is rotatably connected to the door bracket.

[0017] In some embodiments, the length of the first link is D1, the length of the second link is D2, and the length of the third link is D3, wherein D1 > D2 > D3.

[0018] In some embodiments, the door support is provided with a first hinge portion and a second hinge portion, the first hinge portion being near the top edge of the drawer door and the second hinge portion being near the bottom edge of the drawer door;

[0019] The first hinge portion is rotatably connected to the end of the third link, and the second hinge portion is rotatably connected to the end of the first link.

[0020] In some embodiments, the door support includes a first plate and a second plate. The first plate is connected parallel to the side of the drawer door facing the compartment. The second plate is connected to the first plate and is parallel to the drawer slide direction. The first hinge and the second hinge are respectively located on the second plate.

[0021] In some embodiments, the drawer slide has a third hinge portion and a hinge groove, the third hinge portion being near the top of the compartment and the hinge groove being near the bottom of the compartment, and the hinge groove extending at least in the vertical direction;

[0022] The third hinge is rotatably connected to the end of the first connecting rod, and the hinge groove is rotatably connected to the end of the second connecting rod.

[0023] In some embodiments, the drawer rail includes a third plate located at the end of the drawer rail near the drawer door and parallel to the pull-out direction of the drawer rail, and the third hinge portion and the hinge groove are respectively located on the third plate.

[0024] In some embodiments, the linkage mechanism further includes an elastic element, one end of which is connected to the drawer guide rail, and the other end is connected to at least one of the first link, the second link, and the third link. The elastic element is used to provide an elastic force to the first link, the second link, or the third link.

[0025] In some embodiments, the drawer rail includes a base bracket located at the end of the drawer rail near the drawer door and connected to the drawer rail in a horizontal direction;

[0026] The door frame support and the base support are movably connected by the linkage mechanism.

[0027] In some embodiments, the refrigeration device further includes a storage drawer located within the compartment and connected to drawer slides.

[0028] The beneficial effects of the technical solution provided by this utility model include at least the following:

[0029] The refrigeration equipment of this utility model has a drawer door that is movably mounted on the opening of the compartment via a bracket assembly. The door bracket in the bracket assembly is used to connect and support the drawer door, and the drawer guide rail is used to connect to the inner wall of the cabinet, providing support and sliding guidance for the drawer door. The door bracket and the drawer guide rail are connected by a linkage mechanism, which can realize the movable connection between the drawer door and the cabinet. The linkage mechanism can provide stable and reliable movable support for the drawer door. Unlike related technical solutions, the drawer door can move along a non-linear trajectory, such as rotational movement, vertical translational movement, etc., which can first form a small pressure relief gap during the opening process, balance the internal and external air pressure of the compartment, thereby reducing the opening force of the drawer door and improving the convenience of using the drawer door. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the refrigeration device provided in this embodiment of the present invention with the drawer door in the open state;

[0032] Figure 2 This is a schematic diagram of the refrigeration equipment provided in this embodiment of the present invention with the drawer door in a depressurized state;

[0033] Figure 3This is a schematic diagram of the refrigeration device provided in this embodiment of the present invention with the drawer door in the closed state;

[0034] Figure 4 This is a schematic diagram of the bracket assembly and drawer door provided in an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the support assembly provided in this embodiment of the present invention in the drawer door in a depressurized state;

[0036] Figure 6 This is an exploded view of the support assembly provided in this embodiment of the utility model;

[0037] Figure 7 This is an exploded view of the support assembly provided in another embodiment of the present invention.

[0038] The reference numerals in the figure are respectively:

[0039] 1. Box body;

[0040] 11. Room;

[0041] 2. Drawer doors;

[0042] 201. Pressure relief gap;

[0043] 3. Support frame assembly;

[0044] 31. Door frame; 3101. First plate; 3102. Second plate; 311. First hinge; 312. Second hinge; 32. Drawer slide; 3201. Third plate; 321. Third hinge; 322. Hinge groove; 323. Base bracket; 3231. Horizontal connecting screw; 324. Mounting groove; 33. Linkage mechanism; 331. First link; 3311. Mounting hole; 3312. Fourth hinge; 332. Second link; 333. Third link; 334. Elastic element;

[0045] 4. Storage drawers. Detailed Implementation

[0046] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0047] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] It should be understood that in this utility model, "electrical connection" can be understood as physical contact and electrical conduction between components; it can also be understood as a form of connection between different components in a circuit structure through physical lines that can transmit electrical signals, such as copper foil or wires on a printed circuit board (PCB). "Communication connection" can refer to the transmission of electrical signals, including wireless communication connections and wired communication connections. Wireless communication connections do not require a physical medium and are not a connection relationship that limits the product structure. "Connection" and "connected" can both refer to a mechanical or physical connection relationship, that is, A and B being connected or connected can mean that there are fastening components (such as screws, bolts, rivets, etc.) between A and B, or A and B being in contact with each other and difficult to separate.

[0049] Unless otherwise defined, all technical terms used in the embodiments of this utility model have the same meaning as commonly understood by those skilled in the art.

[0050] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0051] Combination Figure 1 As shown, this embodiment provides a refrigeration device, which includes: a housing 1, drawer doors 2, and a support assembly 3. The housing 1 has a compartment 11, and the drawer doors 2 are used to close the opening of the compartment 11.

[0052] Combination Figure 4 As shown, the bracket assembly 3 includes a door bracket 31, a drawer guide rail 32, and a linkage mechanism 33.

[0053] The door support 31 is connected to the side of the drawer door 2 facing the compartment 11, the drawer slide 32 is connected to the inner wall of the compartment 11, and the door support 31 and the drawer slide 32 are movably connected by a linkage mechanism 33.

[0054] In this embodiment of the refrigeration equipment, the drawer door 2 is movably mounted on the opening of the compartment 11 via a bracket assembly 3. The door bracket 31 in the bracket assembly 3 is used to connect and support the drawer door 2, and the drawer guide rail 32 is used to connect to the inner wall of the cabinet 1, providing support and sliding guidance for the drawer door 2. The door bracket 31 and the drawer guide rail 32 are connected by a linkage mechanism 33, which can realize the movable connection between the drawer door 2 and the cabinet 1. The linkage mechanism 33 can provide stable and reliable movable support for the drawer door 2. Unlike related technical solutions, the drawer door 2 can move along a non-linear trajectory, such as rotational movement, vertical translational movement, etc. During the opening process, a small pressure relief gap 201 can be formed between the drawer door 2 and the opening edge of the compartment 11 to balance the internal and external air pressure of the compartment 11, thereby reducing the opening force of the drawer door 2 and improving the ease of use of the drawer door 2.

[0055] In some possible implementations, two support assemblies 3 are used together, with the two support assemblies 3 respectively arranged at the horizontal ends of the drawer door 2 to provide balanced support for the drawer door 2.

[0056] The door support 31 and the drawer door 2 are fixedly connected. The connection method includes, but is not limited to, fastening screws, welding, etc. The support assembly 3 and the door support 31 have at least two connection support points. Compared with the single hinge shaft solution in related technologies, multiple connection support points can provide more stable and reliable moving support for the door support 31 and the drawer door 2, and improve the support reliability and smooth movement of the drawer door 2.

[0057] In some possible implementations, the openings of the drawer door 2 and the compartment 11 are located on the front side of the box body 1, and the user can open and close the drawer door 2 from the front side of the box body 1.

[0058] In some possible implementations, the refrigeration device in this embodiment is a French-style refrigerator, wherein the aforementioned compartment 11 is a freezer compartment with a temperature range of -14°C to -20°C. The number of freezer compartments is at least two, and the at least two freezer compartments are stacked along the height direction.

[0059] For example, the refrigeration equipment also includes a refrigerator compartment located at the upper part of the cabinet 1 and a freezer compartment located at the lower part of the cabinet 1. The refrigerator compartment has a double door opening and the temperature range inside is 2°C-8°C.

[0060] In some possible implementations, the refrigeration equipment includes a refrigeration system, an insulation system, a control system, a storage structure, and a circulation system. The refrigeration system achieves refrigeration through a compressor, condenser, expansion valve, and evaporator, with the evaporator generating the required cooling capacity. The insulation system includes a foam layer and door seals. The foam layer, which can be rigid polyurethane foam, fills the interlayer of the cabinet 1. The door seals, which can be magnetic rubber and an airtight cavity structure, are positioned between the drawer door 2 and the opening of the compartment 11. The storage structure mainly includes the aforementioned compartments 11, which can be a refrigerator compartment and a freezer compartment. The circulation system transfers the heat generated by the evaporator to different compartments 11. Depending on the cooling capacity transfer method, the refrigeration equipment can be either direct cooling or air cooling.

[0061] In addition, refrigeration equipment also includes auxiliary function modules, such as ice makers, sterilization modules, lighting and overload protection modules, etc.

[0062] Combination Figure 2 and Figure 3 As shown, in some embodiments, drawer door 2 includes a closed state and a depressurized state. In the closed state (refer to...) Figure 3 The drawer door 2 is parallel to the side of the cabinet 1, and the drawer door 2 is sealed to the opening of the compartment 11. In the depressurized state (refer to...), Figure 2 The drawer door 2 and the side of the box body 1 are inclined to each other so that at least one side edge of the opening of the drawer door 2 and the compartment 11 forms a pressure relief gap 201.

[0063] With the above arrangement, the linkage mechanism 33 can move the drawer door 2 from a state parallel to the side of the box body 1 to a state tilted to the side of the box body 1. In the tilted state, a pressure relief gap 201 is formed on one side edge of the drawer door 2. Through the pressure relief gap 201, external air can enter the compartment 11, so that the negative pressure in the compartment 11 disappears, thereby helping to reduce the opening force of the drawer door 2 and improve the ease of use of the drawer door 2.

[0064] In this embodiment, the closed state and the pressure relief state of the drawer door 2 are switched through various linkage mechanisms 33. The linkage mechanism 33 can be a four-bar linkage 33 (such as a crank-rocker mechanism, a double crank mechanism, a double rocker mechanism, etc.), a crank-slider mechanism, a six-bar linkage, etc. This embodiment does not limit this.

[0065] Combination Figure 1 As shown, in some possible implementations, the drawer door 2 also includes an open state. In the open state, the drawer door 2 is parallel to the side of the box body 1, and the drawer door 2 and the opening of the compartment 11 are spaced apart.

[0066] In this embodiment of the refrigeration device, when the drawer door 2 is open, the opening of the compartment 11 is no longer sealed or blocked by the drawer door 2, and the user can take or put away items in the compartment 11.

[0067] In addition, when open, the drawer door 2 can be tilted relative to the side of the box 1, as long as it does not affect the retrieval and placement of items in the compartment 11.

[0068] Combination Figure 2 As shown, in some embodiments, in the depressurized state, the distance between the top edge of the drawer door 2 and the opening of the compartment 11 is L1, and the distance between the bottom edge of the drawer door 2 and the opening of the compartment 11 is L2, wherein L1 > L2 ≥ 0.

[0069] With the above arrangement, the distance between the top edge of the drawer door 2 and the opening of the compartment 11 is large in the depressurized state, and the drawer door 2 is tilted outward at the top edge. A depressurization gap 201 is formed between the top edge of the drawer door 2 and the opening of the compartment 11. External air can enter the compartment 11 through the depressurization gap 201, reducing the opening force of the drawer door 2.

[0070] For example, in the depressurization state, L1 > L2 > 0. This prevents rotational interference between the bottom edge of the drawer door 2 and the side of the box 1, avoids scratching between the bottom edge of the drawer door 2 and the side of the box 1, and prevents damage to the appearance of the box 1. It also ensures normal tilting and depressurization of the drawer door 2. In this embodiment, when the drawer door 2 switches from the closed state to the depressurization state, the linkage mechanism 33 drives the drawer door 2 to rotate downward relative to the box 1, while also translating away from the side of the box 1.

[0071] In some possible implementations, a door seal is provided between the drawer door 2 and the opening of the compartment 11. In order to ensure that the top edge of the drawer door 2 forms the aforementioned pressure relief gap 201, L1 needs to be greater than the thickness of the door seal.

[0072] Combination Figure 5 As shown, in some embodiments, the linkage mechanism 33 includes a first link 331, a second link 332 and a third link 333; the first link 331 and the second link 332 are cross-hinged.

[0073] One end of the first link 331 is rotatably connected to the drawer guide rail 32, and the other end of the first link 331 is rotatably connected to the door bracket 31; one end of the second link 332 is rotatably connected to the drawer guide rail 32, and the other end of the second link 332 is rotatably connected to one end of the third link 333, and the other end of the third link 333 is rotatably connected to the door bracket 31.

[0074] With the above arrangement, the linkage mechanism 33 is a five-bar linkage formed by the first link 331, the second link 332, the third link 333, the door support 31 between the first link 331 and the third link 333, and the drawer guide rail 32 between the first link 331 and the second link 332. This linkage mechanism 33 can meet the posture and angle switching of the drawer door 2 from the closed state to the pressure-relieved state, realize the pressure relief of the drawer door 2, and improve the convenience of opening the drawer door 2. Moreover, the linkage mechanism 33 is rotatably connected to the door body through the first link 331 and the third link 333 respectively. The first link 331 and the third link 333 can provide stable support at two points for the door support 31, ensuring the stability and smoothness of the drawer door 2 during rotation and translation.

[0075] Compared to the single-hinge shaft solution in related technologies, the linkage mechanism 33 in this embodiment can both allow the drawer door 2 to rotate and allow the drawer door 2 to translate away from the cabinet 1. The position of the drawer door 2 is not limited by the position of the hinge shaft. The door support 31 and the drawer guide rail 32 can be as close as possible in the thickness direction, or even overlap. This can effectively reduce the distance between the drawer door 2 and the side of the cabinet 1 when closed. This is conducive to realizing the thinning design of refrigeration equipment and conforms to the trend of thinning and lightening of refrigeration equipment.

[0076] Combination Figure 6 As shown, in some embodiments, the length of the first link 331 is D1, the length of the second link 332 is D2, and the length of the third link 333 is D3, where D1 > D2 > D3.

[0077] With the above arrangement, the linkage mechanism 33 can both allow the drawer door 2 to rotate and allow the drawer door 2 to translate in a direction away from the box body 1, and the position of the drawer door 2 is not limited by the position of the hinge axis.

[0078] refer to Figure 5 As shown in Figure 6, in some possible implementations, the first link 331 and the second link 332 are hinged to a fourth hinge portion 3312, which is located between the two ends of the first link 331 and between the two ends of the second link 332. Furthermore, the fourth hinge portion 3312 can divide the first link 331 and the second link 332 into two segments of unequal length.

[0079] by Figure 6 Taking the direction shown as an example, exemplarily, the distance between the fourth hinge portion 3312 and the top end of the first connecting rod 331 is D11, and the distance between the fourth hinge portion 3312 and the bottom end of the first connecting rod 331 is D12. The value range of D11 / D12 is 1.55-1.75. Optionally, the value of D11 / D12 can be 1.55, 1.58, 1.6, 1.65, 1.7, 1.75, etc.

[0080] In another example, the distance between the fourth hinge portion 3312 and the top end of the second connecting rod 332 is D21, and the distance between the fourth hinge portion 3312 and the bottom end of the second connecting rod 332 is D22, with the value of D21 / D22 ranging from 1.67 to 1.87. Optionally, the value of D21 / D22 can be 1.67, 1.7, 1.77, 1.8, 1.87, etc.

[0081] Combination Figure 5 and Figure 6 As shown, in some embodiments, the door support 31 is provided with a first hinge portion 311 and a second hinge portion 312. The first hinge portion 311 is close to the top edge of the drawer door 2, and the second hinge portion 312 is close to the bottom edge of the drawer door 2. The first hinge portion 311 is rotatably connected to the end of the third connecting rod 333, and the second hinge portion 312 is rotatably connected to the end of the first connecting rod 331.

[0082] With the above arrangement, the door support 31 can be rotatably connected to the third link 333 by the first hinge part 311 and rotatably connected to the first link 331 by the second hinge part 312. The linkage mechanism 33 can provide stable and reliable rotational support for the drawer door 2 by the first hinge part 311 and the second hinge part 312 arranged in the vertical direction.

[0083] Furthermore, the first hinge portion 311 and the second hinge portion 312 are arranged in the vertical direction, which can reduce the space occupied by the linkage mechanism 33 in the thickness direction of the refrigeration equipment, which is beneficial to the thinning design of the refrigeration equipment.

[0084] refer to Figure 6 As shown, in some possible implementations, the distance between the first hinge portion 311 and the second hinge portion 312 is D4, where D1 > D2 > D4 > D3, so that the linkage mechanism 33 can provide stable and reliable support for the door bracket 31, and thus provide stable and reliable support for the drawer door 2.

[0085] Combination Figure 5 and Figure 6 As shown, in some embodiments, the door support 31 includes a first plate 3101 and a second plate 3102. The first plate 3101 is connected parallel to the side of the drawer door 2 facing the compartment 11. The second plate 3102 is connected to the first plate 3101 and is parallel to the pull-out direction of the drawer guide rail 32. The first hinge portion 311 and the second hinge portion 312 are respectively located on the second plate 3102.

[0086] With the above arrangement, the door support 31 is connected to the drawer door 2 through the first plate 3101, resulting in a larger connection area and more reliable connection performance. The direction of the second plate 3102 is parallel to the pull-out direction of the drawer track, which allows the linkage mechanism 33 connected to the first plate 3101 to be arranged in a direction parallel to the drawer track. The linkage mechanism 33 has a smaller thickness in the horizontal direction of the drawer door 2, which can reduce the space occupied by the linkage mechanism 33 on the drawer door 2 and the compartment 11.

[0087] For example, the door support 31 is a sheet metal structural component, and the first plate 3101 and the second plate 3102 are integrally formed structures. Moreover, the area of ​​the first plate 3101 is larger than the area of ​​the second plate 3102.

[0088] In another example, the first hinge portion 311 is arranged near the top end of the second plate 3102, and the second hinge portion 312 is arranged near the bottom end of the second plate 3102.

[0089] Combination Figure 6 As shown, in some embodiments, the drawer guide rail 32 is provided with a third hinge portion 321 and a hinge groove 322. The third hinge portion 321 is near the top of the compartment 11, and the hinge groove 322 is near the bottom of the compartment 11, and the hinge groove 322 extends at least in the vertical direction. The third hinge portion 321 is rotatably connected to the end of the first connecting rod 331, and the hinge groove 322 is rotatably connected to the end of the second connecting rod 332.

[0090] In this embodiment, the drawer guide rail 32 is rotatably connected to the first link 331 through the third hinge part 321, and rotatably connected to the second link 332 through the hinge groove 322. The end of the second link 332 can slide along the hinge groove 322 at least in the vertical direction, so that the entire linkage mechanism 33 can move upward and outward during the process of driving the top edge of the drawer door 2 to rotate outward. Without increasing the length of the link, the motion performance and range of motion of the linkage mechanism 33 are increased.

[0091] refer to Figure 6 As shown, in some possible implementations, the distance between the third hinge portion 321 and the hinge groove 322 is D5, and the value of D5 / D1 ranges from 0.7 to 0.9. For example, the value of D5 / D1 is 0.7, 0.75, 0.8, 0.85, 0.9, etc.

[0092] When the distance D5 between the third hinge part 321 and the hinge groove 322 meets the above-mentioned proportional range, the linkage mechanism 33 can move upward and outward during the process of driving the top edge of the drawer door 2 to rotate outward.

[0093] In some possible implementations, the hinge slot 322 is arranged vertically and extends for a length L3 in the vertical direction, satisfying D3>L3>0.

[0094] Combination Figure 6 As shown, in some embodiments, the drawer guide rail 32 includes a third plate 3201, which is located at the end of the drawer guide rail 32 near the drawer door 2 and is parallel to the pull-out direction of the drawer guide rail 32. The third hinge portion 321 and the hinge groove 322 are respectively located on the third plate 3201.

[0095] With the above arrangement, the linkage mechanism 33 can be rotatably connected to the drawer guide rail 32 via the third plate 3201, and the linkage mechanism 33 connected to the third plate 3201 is arranged in a direction parallel to the drawer guide rail. The thickness of the linkage mechanism 33 in the horizontal direction of the drawer guide rail 32 is small, which can reduce the space occupied by the linkage mechanism 33 in the compartment 11.

[0096] In some possible implementations, the third plate 3201 is a structural component in the drawer slide 32.

[0097] Combination Figure 5 and Figure 6 As shown, in some embodiments, the linkage mechanism 33 further includes an elastic element 334, one end of which is connected to the drawer guide rail 32, and the other end is connected to at least one of the first link 331, the second link 332, and the third link 333. The elastic element 334 is used to provide an elastic force to the first link 331, the second link 332, or the third link 333.

[0098] In this embodiment, the elastic element 334 can provide a moving elastic preload when the drawer door 2 switches from the closed state to the depressurized state, so that the drawer door 2 has a certain damping feel and better operability. Moreover, after the external force disappears, the drawer door 2 can return to the closed state or open state parallel to the side of the box body 1 under the action of the elastic element 334.

[0099] For example, the elastic element 334 is a cylindrical spring. Both ends of the elastic element 334 have hook structures, which can be hung on the corresponding drawer slide 32 or other structures.

[0100] refer to Figure 5 and Figure 6 As shown, in some possible implementations, one end of the elastic element 334 is connected to the drawer guide rail 32, and the other end is connected to the first link 331. The elastic element 334 is used to provide an elastic force to the first link 331, which drives the first link 331 to return to the position of the drawer door 2 in the closed or open state.

[0101] For example, the first connecting rod 331 is provided with a mounting hole 3311 for connecting the elastic element 334, and the drawer guide rail 32 is provided with a mounting groove 324 for connecting the elastic element 334. When the elastic element 334 is a cylindrical spring, the two hook structures of the cylindrical spring are respectively hung in the mounting hole 3311 and the mounting groove 324.

[0102] The mounting hole 3311 is located in the middle of the first connecting rod 331, between the fourth hinge part 3312 and the top of the first connecting rod 331. In this way, the elastic element 334 has a large elastic torque on the first connecting rod 331, and a smaller size elastic element 334 can be selected to reduce product cost.

[0103] Combination Figure 7 As shown, in some embodiments, the drawer guide rail 32 includes a base bracket 323, which is located at the end of the drawer guide rail 32 near the drawer door 2 and is connected to the drawer guide rail 32 in a horizontal direction; the door bracket 31 and the base bracket 323 are movably connected by a linkage mechanism 33.

[0104] Considering the large size of the assembly structure of drawer door 2, door bracket 31, linkage mechanism 33, and drawer slide 32, and the difficulty of installation and debugging, a base bracket 323 is added to the end of drawer slide 32 near drawer door 2. This base bracket 323 has a third plate 3201 that can connect to linkage mechanism 33, and the base bracket 323 can be connected to the end of drawer slide 32 in a simple and easy-to-operate manner, thereby reducing the installation difficulty of drawer door 2, bracket assembly 3, and cabinet 1.

[0105] In addition, the mounting groove 324 is located on the edge of the base bracket 323, which further reduces the difficulty of processing.

[0106] In some possible implementations, the base bracket 323 is connected to the drawer slide 32 by at least one horizontal connecting screw 3231.

[0107] For example, when installing the drawer door 2, the bracket assembly 3 and the cabinet 1, first connect the drawer door 2 and the door bracket 31, then connect the linkage mechanism 33 to the door bracket 31, then connect the base bracket 323 to the linkage mechanism 33, connect the drawer guide rail 32 to the inner wall of the compartment 11, and finally connect the base bracket 323 to the end of the drawer guide rail 32.

[0108] Alternatively, the door support 31, the linkage mechanism 33, and the base support 323 can be connected first, then the drawer door 2 can be connected to the door support 31, the drawer rail 32 can be connected to the inner wall of the compartment 11, and finally the base support 323 can be connected to the end of the drawer rail 32.

[0109] Combination Figure 1As shown, in some embodiments, the refrigeration device also includes a storage drawer 4, which is located in the compartment 11 and connected to the drawer slide 32.

[0110] With the above arrangement, when an outward opening force is applied to the closed drawer door 2, the top edge of the drawer door 2 rotates downward, creating a pressure relief gap 201, and the drawer door 2 switches to the pressure relief state. After the negative pressure in the compartment 11 disappears, a smaller opening force is applied to the drawer door 2. The opening force is transmitted to the drawer guide rail 32 through the door support 31, the linkage mechanism 33, and the base support 323. The drawer guide rail 32 is pulled outward, and the storage drawer 4 is also pulled out, switching the drawer door 2 from the closed state to the open state. When an inward closing force is applied to the open drawer door 2, since the door support 31 cannot rotate or move inward relative to the base support 323, the closing force can be directly transmitted to the drawer guide rail 32. The drawer guide rail 32 is pushed back inward, and the storage drawer 4 is also pushed back, switching the drawer door 2 from the open state to the closed state.

[0111] It should be noted that, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0112] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of the present invention.

[0113] The above description is merely an embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A refrigeration appliance characterized in that, The refrigeration equipment comprises a cabinet (1), a drawer door (2) and a bracket assembly (3); The cabinet (1) is internally provided with a chamber (11), and the drawer door (2) is used for closing an opening of the chamber (11); The bracket assembly (3) comprises a door body bracket (31), a drawer guide rail (32) and a connecting rod mechanism (33); The door body bracket (31) is connected with a side of the drawer door (2) facing the chamber (11), the drawer guide rail (32) is connected with an inner wall of the chamber (11), and the door body bracket (31) is movably connected with the drawer guide rail (32) through the connecting rod mechanism (33).

2. The refrigeration appliance of claim 1, wherein, The drawer door (2) comprises a closed state and a pressure relief state; In the closed state, the drawer door (2) and the side of the cabinet (1) are parallel to each other, and the drawer door (2) is in sealing connection with the opening of the chamber (11); In the pressure relief state, the drawer door (2) and the side of the cabinet (1) are inclined to each other, so that the drawer door (2) and at least one side edge of the opening of the chamber (11) form a pressure relief gap (201).

3. The refrigeration appliance of claim 2, wherein, In the pressure relief state, the distance between the top edge of the drawer door (2) and the opening of the chamber (11) is L1, and the distance between the bottom edge of the drawer door (2) and the opening of the chamber (11) is L2, wherein L1>L2≥0.

4. The refrigeration appliance of claim 1, wherein, The connecting rod mechanism (33) comprises a first connecting rod (331), a second connecting rod (332) and a third connecting rod (333); The first connecting rod (331) and the second connecting rod (332) are cross-hinged; One end of the first connecting rod (331) is rotatably connected with the drawer guide rail (32), and the other end of the first connecting rod (331) is rotatably connected with the door body bracket (31); one end of the second connecting rod (332) is rotatably connected with the drawer guide rail (32), the other end of the second connecting rod (332) is rotatably connected with one end of the third connecting rod (333), and the other end of the third connecting rod (333) is rotatably connected with the door body bracket (31).

5. The refrigeration appliance of claim 4, wherein, The length of the first connecting rod (331) is D1, the length of the second connecting rod (332) is D2, and the length of the third connecting rod (333) is D3, wherein D1>D2>D3.

6. The refrigeration appliance of claim 4, wherein, The door body bracket (31) is provided with a first hinge part (311) and a second hinge part (312), the first hinge part (311) is close to the top edge of the drawer door (2), and the second hinge part (312) is close to the bottom edge of the drawer door (2); The first hinge part (311) is rotatably connected with the end of the third connecting rod (333), and the second hinge part (312) is rotatably connected with the end of the first connecting rod (331).

7. The refrigeration appliance of claim 6, wherein, The door body support (31) comprises a first plate member (3101) and a second plate member (3102), the first plate member (3101) is connected in parallel with the side of the drawer door (2) facing the chamber (11), the second plate member (3102) is connected with the first plate member (3101) and is parallel with the pulling direction of the drawer guide rail (32), and the first hinge part (311) and the second hinge part (312) are respectively located on the second plate member (3102).

8. The refrigeration appliance of claim 4, wherein, The drawer guide rail (32) is provided with a third hinge part (321) and a hinge groove (322), the third hinge part (321) is close to the top of the chamber (11), the hinge groove (322) is close to the bottom of the chamber (11), and the hinge groove (322) extends at least in the vertical direction; The third hinge part (321) is rotationally connected with the end of the first connecting rod (331), and the hinge groove (322) is rotationally connected with the end of the second connecting rod (332).

9. The refrigeration appliance of claim 8, wherein, The drawer guide rail (32) comprises a third plate member (3201), the third plate member (3201) is located at the end of the drawer guide rail (32) close to the drawer door (2) and is parallel with the pulling direction of the drawer guide rail (32), and the third hinge part (321) and the hinge groove (322) are respectively located on the third plate member (3201).

10. The refrigeration appliance of claim 4, wherein, The connecting rod mechanism (33) further comprises an elastic member (334), one end of the elastic member (334) is connected with the drawer guide rail (32), and the other end is connected with at least one of the first connecting rod (331), the second connecting rod (332) and the third connecting rod (333), and the elastic member (334) is used for providing elastic force to the first connecting rod (331), the second connecting rod (332) or the third connecting rod (333).

11. The refrigeration appliance of claim 1, wherein, The drawer guide rail (32) comprises a base support (323), the base support (323) is located at the end of the drawer guide rail (32) close to the drawer door (2) and is connected with the drawer guide rail (32) in the horizontal direction; The door body support (31) and the base support (323) are movably connected through the connecting rod mechanism (33).

12. The refrigeration appliance of any of claims 1-11, wherein, The refrigeration equipment further comprises a storage drawer (4), the storage drawer (4) is located in the chamber (11) and is connected with the drawer guide rail (32).

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