A refrigerator

Abstract

The utility model discloses a refrigerator relates to refrigeration field. The specific implementation mode of this refrigerator includes: cabinet frame, a pair of mobile cabinet plate, a pair of folding cabinet plate and refrigeration plant, refrigeration plant (41) are set up in the outer surface of first fixed cabinet plate (11) or second fixed cabinet plate (12), wherein a pair of mobile cabinet plate is configured as: when it is disconnected with first fixed cabinet plate (11), rotates around its rotary joint with second fixed cabinet plate (12), a pair of folding cabinet plate folds, changes the volume of the refrigerator surrounded by cabinet frame, a pair of mobile cabinet plate and a pair of folding cabinet plate. This implementation mode can reduce the volume of refrigerator in the transportation process, improves transportation convenience.

Description

Technical Field

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

[0002] A freezer, also known as a refrigerated display case, is a low-temperature facility used to store goods. It maintains a certain low-temperature environment inside the storage room through artificial refrigeration.

[0003] Refrigerated display cases are the core of modern cold chain logistics, safeguarding the quality and safety of countless products from farm to table, from factory to pharmacy. With the development of industries such as fresh food e-commerce and ready-to-eat meals, and the increasing demands for food safety and quality, the technology and application of refrigerated display cases will continue to evolve towards greater efficiency, intelligence, and environmental friendliness.

[0004] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems: the freezer is bulky and difficult to pass through narrow passages or elevators, resulting in inconvenient transportation. Utility Model Content

[0005] In view of this, the present invention provides a freezer that can reduce the volume of the freezer during transportation and improve transportation convenience.

[0006] To achieve the above objectives, according to one aspect of the present invention, a freezer is provided, comprising: The cabinet frame includes a first fixed cabinet panel and a second fixed cabinet panel that are arranged opposite to each other; A pair of movable cabinet panels, each having one side rotatably connected to the second fixed cabinet panel and the other side detachably connected to the first fixed cabinet panel; A pair of folding cabinet panels, each having its two sides rotatably connected to the first fixed cabinet panel and the second fixed cabinet panel respectively, wherein the folding cabinet panel is composed of a plurality of folding sub-panels rotatably connected in sequence; A refrigeration device is installed on the outer surface of the first fixed cabinet panel or the second fixed cabinet panel; The pair of movable cabinet panels are configured such that when they are disconnected from the first fixed cabinet panel, they rotate around the rotatable connection point between them and the second fixed cabinet panel, and the pair of folding cabinet panels fold, changing the volume of the freezer formed by the cabinet frame, the pair of movable cabinet panels, and the pair of folding cabinet panels.

[0007] The first fixed cabinet panel and the second fixed cabinet panel constitute the front and rear sides of the freezer; The pair of movable cabinet panels are symmetrically arranged on the left and right sides of the freezer, and the pair of folding cabinet panels are symmetrically arranged on the top and bottom of the freezer. or, The pair of movable cabinet panels are symmetrically arranged at the top and bottom of the freezer, and the pair of folding cabinet panels are symmetrically arranged on the left and right sides of the freezer.

[0008] The first fixed cabinet panel and the second fixed cabinet panel constitute the bottom and top of the freezer; The first fixed cabinet plate has trapezoidal threaded inner sleeves at its four corners, and a thrust bearing is provided at the bottom of the trapezoidal threaded inner sleeve. The second fixed cabinet plate has trapezoidal threaded inner sleeves at its four corners. Trapezoidal threaded screws are screwed into the trapezoidal threaded inner sleeves of the first fixed cabinet plate and the second fixed cabinet plate respectively. When the trapezoidal threaded screws rotate, the second fixed cabinet moves closer to or further away from the first fixed cabinet plate. The pair of movable cabinet panels are symmetrically arranged on the left and right sides of the freezer, and the pair of folding cabinet panels are symmetrically arranged on the front and rear sides of the freezer. or, The pair of movable cabinet panels are symmetrically arranged on the front and rear sides of the freezer, and the pair of folding cabinet panels are symmetrically arranged on the left and right sides of the freezer.

[0009] A torque motor is installed on the upper side of the trapezoidal threaded inner sleeve of the second fixed cabinet. The torque motor drives the trapezoidal threaded screw to rotate, so that the second fixed cabinet plate moves closer to or further away from the first fixed cabinet plate.

[0010] The movable cabinet panel and the first fixed cabinet panel are detachably connected by buckles, pins, or electromagnetic locks.

[0011] Sealing components are provided at the joints between the movable cabinet panel and the cabinet frame, the joints between the folding cabinet panel and the cabinet frame, and the joints between the folding sub-panels.

[0012] The interior of the first fixed cabinet panel, the second fixed cabinet panel, the movable cabinet panel, and the folding cabinet panel is filled with polyurethane, polystyrene, extruded polystyrene, or phenolic resin.

[0013] The outer surface of the first fixed cabinet panel is also equipped with a refrigeration control panel.

[0014] The first or second fixed cabinet panel has an access port, which is hinged to a cabinet door for opening and closing the access port.

[0015] The door frame of the warehouse is equipped with an anti-freezing electric heating device.

[0016] One embodiment of the above-described utility model has the following advantages or beneficial effects: a refrigerator is constructed from a cabinet frame, a pair of movable cabinet panels, a pair of folding cabinet panels, and refrigeration equipment. When the pair of movable cabinet panels are disconnected from the first fixed cabinet panel, they rotate around their rotatable connection with the second fixed cabinet panel, causing the pair of folding cabinet panels to fold, thus changing the volume of the refrigerator enclosed by the cabinet frame, the pair of movable cabinet panels, and the pair of folding cabinet panels. The volume of the refrigerator can be reduced as the cabinet panels move, thereby reducing the volume of the refrigerator during transportation and improving transportation convenience.

[0017] The further effects of the aforementioned unconventional alternative methods will be explained below in conjunction with specific implementation methods. Attached Figure Description

[0018] The accompanying drawings are provided to better understand this utility model and do not constitute an undue limitation thereof. Wherein: Figure 1 This is a schematic diagram of the main structure of the freezer according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the folding of the first movable cabinet panel and the second movable cabinet panel in the freezer according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the folding cabinet panel in the freezer in a partially folded state according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of a freezer according to an embodiment of the present invention with the folding cabinet panel in a fully folded state; Figure 5 This is a schematic diagram of the main structure of a freezer according to another embodiment of the present invention; Figure 6 This is a schematic diagram of a freezer according to another embodiment of the present invention with the folding cabinet panel fully open. Figure 7 This is a schematic diagram of a freezer using a torque motor to move and fix the cabinet according to another embodiment of the present invention. Detailed Implementation

[0019] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of the present invention, including various details to aid understanding. These embodiments should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0020] Refrigerators have extremely wide applications and are an essential part of modern life and many industries: Food industry: meat, seafood, fruits and vegetables, dairy products, frozen foods, cold drinks, catering, etc.

[0021] Pharmaceutical industry: drugs, vaccines, blood, biological products, pharmaceutical reagents, etc.

[0022] Chemical industry: chemical raw materials, precision instruments, etc.

[0023] Logistics industry: Cold chain logistics centers are key nodes connecting production and consumption.

[0024] Agriculture: Pre-cooling of agricultural products at the place of origin and off-season sales.

[0025] Scientific research: Preservation of scientific research experimental samples.

[0026] A freezer can be understood as a large, industrial-grade "refrigerator." Through its refrigeration system, it transfers heat from inside the freezer to the outside, creating a stable low-temperature, constant-humidity environment to extend the shelf life of products and maintain their freshness and quality.

[0027] A freezer includes the cabinet structure, refrigeration system, and auxiliary facilities.

[0028] Cabinet structure: It is usually constructed with polyurethane or polystyrene sandwich panels, which have excellent heat insulation and moisture-proof performance.

[0029] The refrigeration system includes: Compressor: The power source for the refrigeration cycle.

[0030] Condenser: Cools and liquefies the high-temperature, high-pressure refrigerant gas discharged from the compressor.

[0031] Evaporator: Installed inside the storage room, the liquid refrigerant evaporates and absorbs heat, thereby lowering the storage temperature.

[0032] Throttling valve: controls the refrigerant flow rate and plays a role in reducing pressure and throttling.

[0033] Electrical control system: Controls the operation of the entire cold storage, including temperature, defrosting, fan start / stop, etc., to achieve automated management.

[0034] Auxiliary facilities include: freezer doors, shelves, loading docks, and air curtains.

[0035] Traditional cold storage facilities have long construction cycles. Mobile cold storage trucks are expensive, and the cost of transporting empty containers is high. Even transporting multiple small refrigerators with a volume of less than 2 cubic meters empty containers increases costs, and a single unit cannot meet the storage needs of small to medium-sized batches of goods. Furthermore, large freezers are difficult to maneuver through narrow passages or elevators, leading to inconvenient transportation.

[0036] To address the transportation inconvenience caused by the large size of the freezer, the following technical solutions from the embodiments of this utility model can be adopted.

[0037] See Figure 1 , Figure 1 This is a schematic diagram of the main structure of the freezer according to an embodiment of the present utility model. Figure 1 As shown in Figure 100, Figure 1 The refrigerator is constructed with six cabinet panels. As an example, all six cabinet panels are squares with the same area.

[0038] Specifically, the cabinet frame includes a first fixed cabinet panel 11 and a second fixed cabinet panel 12 arranged opposite to each other. Figure 1 The first fixed cabinet panel 11 is located on the front side of the freezer, and the second fixed cabinet panel 12 is located on the rear side of the freezer. The first fixed cabinet panel 11 and the second fixed cabinet panel 12 are arranged opposite to each other.

[0039] A pair of movable cabinet panels, each having one side rotatably connected to the second fixed cabinet panel 12 and the other side detachably connected to the first fixed cabinet panel 11.

[0040] See also Figure 1 , Figure 1 A pair of movable cabinet panels are located on the left and right sides of the freezer.

[0041] Specifically, the pair of movable cabinet panels includes a first movable cabinet panel 21 and a second movable cabinet panel 22. The first movable cabinet panel 21 is detachably connected to the first fixed cabinet panel 11, and the first movable cabinet panel 21 is rotatably connected to the second fixed cabinet panel 12. The second movable cabinet panel 22 is detachably connected to the first fixed cabinet panel 11, and the second movable cabinet panel 22 is rotatably connected to the second fixed cabinet panel 12.

[0042] A pair of folding cabinet panels, each having its two sides rotatably connected to a first fixed cabinet panel 11 and a second fixed cabinet panel 12 respectively. The folding cabinet panel is composed of multiple folding sub-panels that are rotatably connected in sequence.

[0043] See also Figure 1 A pair of folding cabinet panels includes a first folding cabinet panel 31 and a second folding cabinet panel 32. The first folding cabinet panel 31 is rotatably connected to a first fixed cabinet panel 11 and a second fixed cabinet panel 12. The second folding cabinet panel 32 is rotatably connected to the first fixed cabinet panel 11 and the second fixed cabinet panel 12. As an example, the first folding cabinet panel 31 is composed of two folding sub-panels that are rotatably connected in sequence; the second folding cabinet panel 32 is composed of two folding sub-panels that are rotatably connected in sequence.

[0044] The refrigeration device 41 is disposed on the outer surface of the first fixed cabinet plate 11 or the second fixed cabinet plate 12. As an example, the refrigeration device 41 uses AC voltage or DC voltage.

[0045] See also Figure 1The refrigeration equipment 41 is installed on the outer surface of the first fixed cabinet plate 11.

[0046] Figure 1 The first movable cabinet panel 21 is connected to the first fixed cabinet panel 11, and the second movable cabinet panel 22 is connected to the first fixed cabinet panel 11. When the first folding cabinet panel 31 and the second folding cabinet panel 32 are fully unfolded, the refrigeration equipment 41, the first fixed cabinet panel 11, the second fixed cabinet panel 12, the first movable cabinet panel 21, the second movable cabinet panel 22, the first folding cabinet panel 31, and the second folding cabinet panel 32 constitute a freezer.

[0047] To reduce the size of the freezer, the cabinet panels can be moved. A pair of movable cabinet panels are configured such that when they are disconnected from the first fixed cabinet panel 11, they rotate about the rotatable connection point between them and the second fixed cabinet panel 12, and a pair of folding cabinet panels fold, changing the volume of the freezer formed by the cabinet frame, the pair of movable cabinet panels, and the pair of folding cabinet panels.

[0048] See Figure 2 That is, 200. Figure 2 This is a schematic diagram of the folding of the first and second movable cabinet panels in the freezer according to an embodiment of the present utility model.

[0049] Figure 2 When the first movable cabinet plate 21 is disconnected from the first fixed cabinet plate 11, it rotates around the rotatable connection point with the second fixed cabinet plate 12, and the first movable cabinet plate 21 moves to the side of the second fixed cabinet plate 12. When the second movable cabinet plate 22 is disconnected from the first fixed cabinet plate 11, it rotates around the rotatable connection point with the second fixed cabinet plate 12, and the second movable cabinet plate 22 moves to the side of the second fixed cabinet plate 12.

[0050] See Figure 3 That is, 300. Figure 3 This is a schematic diagram of the folding cabinet panel in the freezer in a partially folded state according to an embodiment of the present utility model.

[0051] Figure 3 In the process, multiple folding sub-plates in the first folding cabinet panel 31 rotate, and the first folding cabinet panel 31 moves downward relative to the first fixed cabinet panel 11 and the second fixed cabinet panel 12, thus folding the first folding cabinet panel 31; multiple folding sub-plates in the second folding cabinet panel 32 rotate, and the second folding cabinet panel 32 moves upward relative to the first fixed cabinet panel 11 and the second fixed cabinet panel 12, thus folding the second folding cabinet panel 32.

[0052] The first folding cabinet panel 31 is folded, and the second folding cabinet panel 32 is folded, thereby changing the volume of the freezer formed by the cabinet frame, a pair of movable cabinet panels, and a pair of folding cabinet panels.

[0053] See Figure 4 That is, 400. Figure 4 This is a schematic diagram of a freezer according to an embodiment of the present invention with the folding cabinet panel in a fully folded state.

[0054] Figure 4 In the middle, the first movable cabinet panel 21 moves to the side of the second fixed cabinet panel 12, and the second movable cabinet panel 22 moves to the side of the second fixed cabinet panel 12. Figure 4 In the middle, the first folding cabinet panel 31 is completely folded, and the second folding cabinet panel 32 is completely folded.

[0055] The first folding cabinet panel 31 is fully folded, and the second folding cabinet is fully folded, thereby minimizing the volume of the freezer formed by the cabinet frame, a pair of movable cabinet panels, and a pair of folding cabinet panels.

[0056] In the above embodiments, by moving the cabinet panels of the freezer, the volume of the freezer is compressed, thereby reducing the volume of the freezer during transportation and improving transportation convenience.

[0057] In one embodiment of this utility model, the first fixed cabinet plate 11 and the second fixed cabinet plate 12 constitute the front and rear sides of the freezer.

[0058] Based on the first fixed cabinet panel 11 and the second fixed cabinet panel 12, a pair of movable cabinet panels are symmetrically arranged on the left and right sides of the freezer, and a pair of folding cabinet panels are symmetrically arranged on the top and bottom of the freezer.

[0059] That is, the first movable cabinet panel 21 is located on the left side of the freezer, and the second movable cabinet panel 22 is located on the right side of the freezer. The first folding cabinet panel 31 is located on the top of the freezer, and the second folding cabinet panel 32 is located on the bottom of the freezer.

[0060] The first movable cabinet panel 21 rotates toward the second fixed cabinet panel 12, and the second movable cabinet panel 22 rotates toward the second fixed cabinet panel 12; the first folding cabinet panel 31 moves downward relative to the first fixed cabinet panel 11 and the second fixed cabinet panel 12, and the second folding cabinet panel 32 moves upward relative to the first fixed cabinet panel 11 and the second fixed cabinet panel 12. The first fixed cabinet panel 11 and the second fixed cabinet panel 12 overlap, thereby reducing the volume of the freezer.

[0061] In one embodiment of this utility model, the first fixed cabinet plate 11 and the second fixed cabinet plate 12 constitute the front and rear sides of the freezer.

[0062] Based on the first fixed cabinet panel 11 and the second fixed cabinet panel 12, a pair of movable cabinet panels are symmetrically arranged on the top and bottom of the freezer, and a pair of folding cabinet panels are symmetrically arranged on the left and right sides of the freezer.

[0063] That is, the first movable cabinet panel 21 is located at the top of the freezer, and the second movable cabinet panel 22 is located at the bottom of the freezer. The first folding cabinet panel 31 is located on the left side of the freezer, and the second folding cabinet panel 32 is located on the right side of the freezer.

[0064] The first movable cabinet panel 21 rotates toward the second fixed cabinet panel 12, and the second movable cabinet panel 22 rotates toward the second fixed cabinet panel 12; the first folding cabinet panel 31 moves to the right relative to the first fixed cabinet panel 11 and the second fixed cabinet panel 12, and the second folding cabinet panel 32 moves to the left relative to the first fixed cabinet panel 11 and the second fixed cabinet panel 12. The first fixed cabinet panel 11 and the second fixed cabinet panel 12 overlap, thereby reducing the volume of the freezer.

[0065] See Figure 5 That is, 500. Figure 5 This is a schematic diagram of the main structure of a freezer according to another embodiment of the present invention. Figure 5 The first fixed cabinet plate 11 in the middle cabinet frame serves as the bottom of the freezer, and the second fixed cabinet plate 12 serves as the top of the freezer.

[0066] The first movable cabinet panel 21 is located on the front side of the freezer, and the second movable cabinet panel 22 is located on the rear side of the freezer. The first folding cabinet panel 31 is located on the left side of the freezer, and the second folding cabinet panel 32 is located on the right side of the freezer. The refrigeration unit 41 is located on the outer surface of the second cabinet panel. That is, a pair of movable cabinet panels are symmetrically arranged on the left and right sides of the freezer, and a pair of folding cabinet panels are symmetrically arranged on the front and rear sides of the freezer.

[0067] As another example, a pair of movable cabinet panels are symmetrically arranged on the front and rear sides of the freezer, and a pair of folding cabinet panels are symmetrically arranged on the left and right sides of the freezer.

[0068] Considering the large weight of the movable cabinet panel, a trapezoidal threaded screw 15 can be installed to support the second fixed cabinet panel 12 located at the top of the freezer.

[0069] See also Figure 5 , Figure 5 Trapezoidal threaded inner sleeves 13 are provided at the four corners of the first fixed cabinet plate 11, and thrust bearings are provided at the bottom of the trapezoidal threaded inner sleeves 13. After the thrust bearings are connected to the trapezoidal threaded screw 15, the trapezoidal threaded screw 15 rotates in place, and the first fixed cabinet plate 11 does not move.

[0070] Trapezoidal threaded inner sleeves 14 are provided at the four corners of the second fixed cabinet plate 12, and trapezoidal threaded screws 15 are screwed into the trapezoidal threaded inner sleeves 13 of the first fixed cabinet plate 11 and the trapezoidal threaded inner sleeves 14 of the second fixed cabinet plate 12 respectively. Figure 5In the middle, the first solid cabinet plate and the second solid cabinet plate are connected by four trapezoidal threaded screws 15. When the trapezoidal threaded screws 15 rotate, the second fixed cabinet moves closer to or further away from the first fixed cabinet plate 11.

[0071] Specifically, when the cabinet panel of the freezer is in a folded state, four trapezoidal threaded screws 15 are screwed into the trapezoidal threaded inner sleeve 13 of the first fixed cabinet panel 11, and then screwed into the trapezoidal threaded inner sleeve 14 of the second fixed cabinet panel 12.

[0072] When rotating the trapezoidal threaded screw 15, the second fixed cabinet plate 12 is integrated with the trapezoidal threaded inner sleeve, and the second fixed cabinet is away from the first fixed cabinet plate 11.

[0073] See Figure 6 That is, 600. Figure 6 This is a schematic diagram of a freezer according to another embodiment of the present invention with the folding cabinet panel fully opened.

[0074] Figure 6 In the process, by rotating the trapezoidal threaded screw 15, the second fixed cabinet plate 12 rises to the top of the freezer, and the first folding cabinet plate 31 and the second folding cabinet plate 32 unfold simultaneously until the first folding cabinet plate 31 and the second folding cabinet plate 32 are fully unfolded.

[0075] Move the first movable cabinet panel 21 to the front of the freezer, and move the second movable cabinet panel 22 to the rear of the freezer to finally build the freezer.

[0076] The trapezoidal threaded screw 15 serves a supporting function and has a self-locking feature. Simultaneously, the first fixed cabinet plate 11 and the second fixed cabinet plate 12 provide support and positioning, ensuring the safety of the second fixed cabinet plate 12 within the freezer. As an example, the rotation of the trapezoidal threaded screw 15 can be achieved manually.

[0077] See Figure 7 That is, 700. Figure 7 This is a schematic diagram of a freezer according to another embodiment of the present invention, showing how a torque motor 16 moves and fixes the cabinet. To increase the moving speed of the second fixed cabinet plate 12, a torque motor 16 is also used to drive a trapezoidal threaded screw 15 to rotate.

[0078] Figure 7 In the middle, a torque motor 16 is set on the upper side of the trapezoidal threaded inner sleeve 14 of the second fixed cabinet plate 12, that is, each trapezoidal threaded inner sleeve is equipped with a torque motor 16.

[0079] The worm gear on the motor shaft of the torque motor 16 drives the worm wheel to rotate, and the trapezoidal thread inside the worm wheel drives the trapezoidal threaded screw 15 to rotate. The thrust bearing of the first fixed cabinet plate 11 causes the trapezoidal threaded screw 15 to rotate within the first fixed cabinet plate 11, and the trapezoidal threaded screw 15 rotates within the trapezoidal threaded sleeve 14 of the second fixed cabinet plate 12, causing the second fixed cabinet plate 12 to move upward. That is, to make the second fixed cabinet plate 12 move closer to or further away from the first fixed cabinet plate 11.

[0080] In the above embodiment, the second fixed cabinet plate 12 is moved by a trapezoidal threaded screw 15 to ensure the safety of the cabinet plate movement in the freezer.

[0081] In one embodiment of this utility model, considering the stability and security of the connection between the first movable cabinet plate 21 and the second movable cabinet plate 22 and the first fixed cabinet plate 11, the connection between the first movable cabinet plate 21 and the first fixed cabinet plate 11, and the connection between the second movable cabinet plate 22 and the first fixed cabinet plate 11, can be achieved by buckles, pins, or electromagnetic locks. That is, the movable cabinet plate and the first fixed cabinet plate 11 are detachably connected by buckles, pins, or electromagnetic locks. The number of buckles, pins, or electromagnetic locks can be one or more.

[0082] In one embodiment of this utility model, sealing components are provided between the cabinet panels to improve the airtightness of the freezer. As an example, the sealing components include sealing strips, sealing gaskets, or insulating tape. That is, sealing components are provided at the joints between the movable cabinet panel and the cabinet frame, the joints between the folding cabinet panel and the cabinet frame, and the joints between the folding sub-panels.

[0083] Specifically, sealing components are pre-installed at the aforementioned joints. When the cabinet panel is connected to the cabinet frame, and when the folding sub-panels are connected, the sealing components ensure the airtightness of the freezer, thereby improving the refrigeration effect of the freezer.

[0084] In one embodiment of this utility model, in order to reduce the heat exchange between the cabinet panel and the outside air of the freezer, the interior of the first fixed cabinet panel 11, the second fixed cabinet panel 12, the movable cabinet panel and the folding cabinet panel is filled with polyurethane, polystyrene, extruded polystyrene or phenolic resin.

[0085] See also Figure 1 , Figure 1 A refrigeration device 41 is installed on the outer surface of the first fixed cabinet panel 11. To facilitate the control of the refrigeration device 41, a refrigeration control panel 42 can be installed on the outer surface of the first fixed cabinet panel 11. The refrigeration device 41 is controlled through the refrigeration control panel 42.

[0086] In one embodiment of this utility model, the interior of the freezer can be accessed through the first movable cabinet panel 21 or the second movable cabinet panel 22. That is, the first movable cabinet panel 21 or the second movable cabinet panel 22 can serve as the freezer door 51.

[0087] In one embodiment of the present invention, an access port is provided on the first fixed cabinet plate 11 or the second fixed cabinet plate 12, and a cabinet door 51 for opening and closing the access port is hinged thereto.

[0088] See also Figure 1 , Figure 1 The access port is located on the outer surface of the first fixed cabinet panel 11, and a door 51 is correspondingly provided for the access port. The interior of the freezer can be accessed through the door 51. As an example, a push-opening device is provided on one side of the door 51 inside the freezer. The door 51 can be safely opened using the push-opening device.

[0089] In one embodiment of this invention, to prevent the freezer door 51 from freezing and sticking together with the cabinet panel due to icing and condensation, thereby ensuring the long-term sealing performance and normal operation of the freezer, an anti-freeze electric heating device 52 is provided at the door frame of the freezer door 51. As an example, the anti-freeze electric heating device 52 includes a door anti-freeze heating wire or a door frame heating tube. The door anti-freeze heating wire or door frame heating tube is disposed between the freezer door 51 and the cabinet panel. By increasing the temperature of the area between the freezer door 51 and the cabinet panel, the anti-freeze heating device prevents condensation from forming, thereby ensuring the freezer's airtightness.

[0090] In one embodiment of this invention, casters can be installed at the bottom of the freezer. As an example, four casters are installed at the bottom of the freezer, each with a corresponding locking mechanism. The casters improve the mobility of the freezer.

[0091] In one embodiment of this invention, considering the ease of transporting the freezer, the freezer is a cube, and the length of the freezer body panels is less than or equal to 2200 mm. Thus, the volume of one freezer is equivalent to the volume of four six-door refrigerators. The volume of a six-door refrigerator is 1.5 cubic meters.

[0092] According to the technical solution of this utility model embodiment, a freezer is constructed from a cabinet frame, a pair of movable cabinet panels, a pair of folding cabinet panels, and a refrigeration device 41. When the pair of movable cabinet panels are disconnected from the first fixed cabinet panel 11, they rotate around the rotatable connection point between the movable cabinet panels and the second fixed cabinet panel 12, causing the pair of folding cabinet panels to fold, thus changing the volume of the freezer enclosed by the cabinet frame, the pair of movable cabinet panels, and the pair of folding cabinet panels. The volume of the freezer can be reduced as the cabinet panels move, thereby reducing the volume of the freezer during transportation and improving transportation convenience.

[0093] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model. It should be noted that the acquisition, storage, and application of user personal information involved in the technical solutions disclosed herein comply with relevant laws and regulations and do not violate public order and good morals.

Claims

1. A freezer, characterized in that, include: The cabinet frame includes a first fixed cabinet panel (11) and a second fixed cabinet panel (12) that are arranged opposite to each other. A pair of movable cabinet panels, each having one side rotatably connected to the second fixed cabinet panel (12) and the other side detachably connected to the first fixed cabinet panel (11); A pair of folding cabinet panels, with their sides respectively rotatably connected to the first fixed cabinet panel (11) and the second fixed cabinet panel (12), the folding cabinet panels being composed of multiple folding sub-panels rotatably connected in sequence; A refrigeration device (41) is disposed on the outer surface of the first fixed cabinet plate (11) or the second fixed cabinet plate (12); The pair of movable cabinet panels are configured such that when they are disconnected from the first fixed cabinet panel (11), they rotate around the rotatable connection point between them and the second fixed cabinet panel (12), and the pair of folding cabinet panels fold, thereby changing the volume of the freezer formed by the cabinet frame, the pair of movable cabinet panels and the pair of folding cabinet panels.

2. The freezer according to claim 1, characterized in that, The first fixed cabinet panel (11) and the second fixed cabinet panel (12) constitute the front and rear sides of the freezer; The pair of movable cabinet panels are symmetrically arranged on the left and right sides of the freezer, and the pair of folding cabinet panels are symmetrically arranged on the top and bottom of the freezer. or, The pair of movable cabinet panels are symmetrically arranged at the top and bottom of the freezer, and the pair of folding cabinet panels are symmetrically arranged on the left and right sides of the freezer.

3. The freezer according to claim 1, characterized in that, The first fixed cabinet panel (11) and the second fixed cabinet panel (12) constitute the bottom and top of the freezer; The first fixed cabinet plate (11) is provided with trapezoidal threaded inner sleeves (13) at its four corners, and a thrust bearing is provided at the bottom of the trapezoidal threaded inner sleeves (13). The second fixed cabinet plate (12) is provided with trapezoidal threaded inner sleeves (14) at its four corners. The trapezoidal threaded screw (15) is screwed into the trapezoidal threaded inner sleeves (13) of the first fixed cabinet plate (11) and the trapezoidal threaded inner sleeves (14) of the second fixed cabinet plate (12) respectively. When the trapezoidal threaded screw (15) rotates, the second fixed cabinet moves closer to or away from the first fixed cabinet plate (11). The pair of movable cabinet panels are symmetrically arranged on the left and right sides of the freezer, and the pair of folding cabinet panels are symmetrically arranged on the front and rear sides of the freezer. or, The pair of movable cabinet panels are symmetrically arranged on the front and rear sides of the freezer, and the pair of folding cabinet panels are symmetrically arranged on the left and right sides of the freezer.

4. The freezer according to claim 3, characterized in that, A torque motor (16) is provided on the upper side of the trapezoidal threaded inner sleeve of the second fixed cabinet. The torque motor (16) drives the trapezoidal threaded screw (15) to rotate so that the second fixed cabinet plate (12) moves closer to or further away from the first fixed cabinet plate (11).

5. The freezer according to claim 1, characterized in that, The movable cabinet panel and the first fixed cabinet panel (11) are detachably connected by buckles, pins or electromagnetic locks.

6. The freezer according to claim 1, characterized in that, Sealing components are provided at the joints between the movable cabinet panel and the cabinet frame, the joints between the folding cabinet panel and the cabinet frame, and the joints between the folding sub-panels.

7. The freezer according to claim 1, characterized in that, The interior of the first fixed cabinet panel (11), the second fixed cabinet panel (12), the movable cabinet panel, and the folding cabinet panel is filled with polyurethane, polystyrene, extruded polystyrene, or phenolic resin.

8. The freezer according to claim 1, characterized in that, The outer surface of the first fixed cabinet plate (11) is also provided with a refrigeration control panel (42).

9. The freezer according to claim 1, characterized in that, The first fixed cabinet plate (11) or the second fixed cabinet plate (12) is provided with an access port and is hinged to a cabinet door (51) for opening and closing the access port.

10. The freezer according to claim 9, characterized in that, The door frame of the warehouse door (51) is equipped with an antifreeze electric heating device (52).

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