Cold storage device for direct-cooling refrigerator

Abstract

The utility model belongs to the refrigerator cold storage technical field relates to the cold type refrigerator's cold storage device, including the cold type refrigerator main part, the cold type refrigerator main part outside one side is hinged with the protective door, the cold type refrigerator main part inside is provided with the partition assembly, the cold storage subassembly, it is located the cold type refrigerator main part inboard, the utility model discloses through the cooperation of cold storage subassembly and dismounting mechanism, makes when using the cold type refrigerator main part, can be divided into multiple groups to the phase change material block in the inside through the mounting bracket, and every piece can dismount, make its modularization, when meeting the need of the cold type refrigerator main part and dismounting or maintaining can be more convenient and reliable, further improved the practicality of device, saved the maintenance cost, the phase change material block uses the composite material, n-tetradecane and expanded graphite cooperate with each other, the both complement each other, further improved the cold storage capacity of cold storage subassembly.

Description

Technical Field

[0001] This utility model belongs to the field of refrigerator cold storage technology, and relates to a cold storage device for direct-cooling refrigerators. Background Technology

[0002] Direct-cooling refrigerators are one of the earliest and most widely used refrigeration types in refrigerators. They have advantages such as simple structure, low cost, and good humidification effect. Their core principle is to achieve cooling by having the evaporator directly contact the inner wall of the refrigerator and using natural convection.

[0003] The following technical problems were found in the existing technology: The compressor in the traditional direct-cooling refrigerator starts and stops intermittently, which causes large temperature fluctuations in the freezer and refrigerator compartments. In actual use, the existing cold storage device lacks modular design, which not only occupies a large area inside the refrigerator, but also makes the disassembly process cumbersome and complicated if the cold storage device leaks or needs to be repaired, affecting the efficiency of maintenance and repair. Utility Model Content

[0004] The technical problem this invention aims to solve is that the compressor in a traditional direct-cooling refrigerator starts and stops intermittently, which causes large temperature fluctuations in the freezer and refrigerator compartments. Existing cold storage devices lack modular design in practical use, occupying a large area inside the refrigerator. Furthermore, if a leak occurs in the cold storage device or repair is needed, the disassembly process is cumbersome and complicated, affecting the efficiency of maintenance and repair.

[0005] The cold storage device of the direct-cooling refrigerator described in this utility model includes a direct-cooling refrigerator body, a protective door hinged to one side of the external side of the direct-cooling refrigerator body, and a partition component provided inside the direct-cooling refrigerator body. The cold storage component is located inside the main body of the direct-cooling refrigerator. The cold storage component includes a disassembly mechanism, a filling mechanism, and a snap-fit ​​limiting mechanism, which work together.

[0006] The partition assembly includes an isolation layer, a freezer compartment, a refrigerator compartment, and a compressor body. The freezer compartment is located at the bottom inside the direct-cooling refrigerator body. The isolation layer is fixedly connected to the middle inside the direct-cooling refrigerator body. The refrigerator compartment is located at the top inside the direct-cooling refrigerator body. The freezer compartment and the refrigerator compartment are separated by the isolation layer. The compressor body is fixedly connected inside the freezer compartment.

[0007] The cold storage component includes a mounting bracket and phase change material blocks. The mounting bracket is fixed to one side of the interior of the direct-cooling refrigerator body, and multiple sets of phase change material blocks are installed inside the mounting bracket.

[0008] The disassembly mechanism includes a heat-conducting plate, mounting screws, and a flat plate. A heat-conducting plate is provided on one side inside the main body of the direct-cooling refrigerator. The heat-conducting plate slides in the middle of the isolation layer. A mounting screw is slidably connected to the middle of the heat-conducting plate. The mounting screw is threadedly connected to the main body of the direct-cooling refrigerator. Flat plates are provided on both sides outside the isolation layer.

[0009] The filling mechanism includes a limiting block, a filling plate, and a sliding groove. The limiting block is fixed to the top of the outer side of the flat plate. The filling plate is slidably connected inside the isolation layer. Multiple sets of sliding grooves are opened on the outer side of the filling plate, and the limiting block slides inside the sliding groove.

[0010] The locking and limiting mechanism includes a sliding groove, a telescopic spring, a locking plate, and a compensation groove. A sliding groove is provided on the outer side of the isolation layer. A telescopic spring is fixedly connected inside the sliding groove. A locking plate is fixedly connected to the end of the telescopic spring. The locking plate slides inside the sliding groove. A compensation groove is provided on the outer side of the sliding groove.

[0011] The compressor body has a heat dissipation hole A on the top of the outer side, and a sealing block is provided inside the heat dissipation hole A. Heat dissipation holes B are provided on both sides of the outer side of the compressor body.

[0012] A guide pipe is fixed to the outside of the heat dissipation hole B, and a release hole is provided inside the main body of the direct cooling refrigerator. The release hole is connected to the guide pipe.

[0013] The heat-conducting plate has a filling groove on the side near the compressor body.

[0014] The isolation layer has a circulation groove inside, which is connected to the compressor body.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: by using the cold storage component and the disassembly mechanism together, when using the main body of the direct-cooling refrigerator, the internal phase change material blocks can be divided into multiple groups by the mounting bracket, and each block can be disassembled, making it modular. When it is necessary to disassemble or maintain the main body of the direct-cooling refrigerator, it is more convenient and reliable, further improving the practicality of the device and saving maintenance costs. The phase change material blocks use composite materials, with n-tetradecane and expanded graphite complementing each other, further improving the cold storage capacity of the cold storage component.

[0016] When the compressor is working, the heat generated during operation preferentially leaves through heat dissipation hole A. Since hot air has a lower density, setting heat dissipation hole A upward can improve heat dissipation efficiency. When frost forms on the surface of the heat-conducting plate inside the freezer compartment due to long-term use, heat dissipation hole A is sealed with a sealing block, and the protective door is opened to keep the refrigerator body open. The hot air generated by the compressor is then discharged through heat dissipation hole B, enters the refrigerator body through the guide pipe, and is then sprayed onto the heat-conducting plate through the release hole to clean the frost on the surface of the heat-conducting plate, thus saving the need for defrosting inside the freezer compartment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the main structure of the direct-cooling refrigerator of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the phase change material block of this utility model.

[0020] Figure 3 This is a schematic diagram of the filling plate of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the heat-conducting plate of this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the guide tube of this utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the circulation tank of this utility model.

[0024] In the diagram: 1. Main body of the direct-cooling refrigerator; 2. Protective door; 3. Isolation layer; 4. Freezer compartment; 5. Refrigerator compartment; 6. Compressor body; 7. Mounting bracket; 8. Phase change material block; 9. Heat-conducting plate; 10. Mounting screws; 11. Flat plate; 12. Limiting block; 13. Filling plate; 14. Slide groove; 15. Sliding groove; 16. Telescopic spring; 17. Clamping plate; 18. Compensation groove; 19. Heat dissipation hole A; 20. Sealing block; 21. Heat dissipation hole B; 22. Guide pipe; 23. Release hole; 24. Filling groove; 25. Circulation groove. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] Example 1 like Figure 1 - Figure 6 As shown, the cold storage device of the direct-cooling refrigerator includes a direct-cooling refrigerator body 1, a protective door 2 is hinged to one side of the outside of the direct-cooling refrigerator body 1, and a partition component is provided inside the direct-cooling refrigerator body 1. The cold storage component is located inside the main body 1 of the direct-cooling refrigerator. The cold storage component includes a disassembly mechanism, a filling mechanism, and a snap-fit ​​limiting mechanism, which are used in conjunction with each other.

[0030] The partition assembly includes an isolation layer 3, a freezer compartment 4, a refrigerator compartment 5, and a compressor body 6. The freezer compartment 4 is located at the bottom inside the direct-cooling refrigerator body 1. The isolation layer 3 is fixedly connected to the middle inside the direct-cooling refrigerator body 1. The refrigerator compartment 5 is located at the top inside the direct-cooling refrigerator body 1. The freezer compartment 4 and the refrigerator compartment 5 are separated by the isolation layer 3. The compressor body 6 is fixedly connected inside the freezer compartment 4.

[0031] The cold storage component includes a mounting bracket 7 and a phase change material block 8. The mounting bracket 7 is fixedly connected to one side of the interior of the direct-cooling refrigerator body 1. Multiple sets of phase change material blocks 8 are installed inside the mounting bracket 7. The disassembly mechanism includes a heat-conducting plate 9, mounting screws 10, and a flat plate 11. The heat-conducting plate 9 is provided on one side of the interior of the direct-cooling refrigerator body 1. The heat-conducting plate 9 slides in the middle of the isolation layer 3. The mounting screws 10 are slidably connected to the middle of the heat-conducting plate 9. The mounting screws 10 are threadedly connected to the direct-cooling refrigerator body 1. Flat plates 11 are provided on both sides of the exterior of the isolation layer 3.

[0032] The filling mechanism includes a limiting block 12, a filling plate 13, and a sliding groove 14. The limiting block 12 is fixedly connected to the top outer side of the flat plate 11. The filling plate 13 is slidably connected inside the isolation layer 3. Multiple sets of sliding grooves 14 are opened on the outer side of the filling plate 13. The limiting block 12 slides inside the sliding groove 14. The locking and limiting mechanism includes a sliding groove 15, a telescopic spring 16, a locking plate 17, and a compensation groove 18. A sliding groove 15 is opened on one side of the outer side of the isolation layer 3. A telescopic spring 16 is fixedly connected inside the sliding groove 15. A locking plate 17 is fixedly connected to the end of the telescopic spring 16. The locking plate 17 slides inside the sliding groove 15. A compensation groove 18 is opened on the outer side of the sliding groove 15.

[0033] During operation, the device is first connected to an external power supply, and then to an external control module. The electronic components in this technical solution are driven by the cooperation of the external control module and the power supply. The external control module is existing technology and should be well known to those skilled in the art, so it will not be described in detail in this technical solution.

[0034] The internal space of the direct-cooling refrigerator body 1 is divided into a freezer compartment 4 and a refrigerator compartment 5 by an isolation layer 3. The outside of the direct-cooling refrigerator body 1 is then sealed by a protective door 2. A mounting bracket 7 is then fixed to the inner wall of the direct-cooling refrigerator body 1. A phase change material block 8 is then installed inside the mounting bracket 7. The phase change material block 8 uses a composite material of n-tetradecane and expanded graphite. N-tetradecane is a phase change material; in its liquid state, it has the disadvantages of high fluidity and easy leakage. However, when used with expanded graphite, the porous honeycomb structure inside the expanded graphite can physically adsorb and lock the n-tetradecane inside the graphite, forming a shaped composite phase change material that can maintain the phase change material's properties. The temperature of the material facilitates processing into various shapes. At the same time, the excellent thermal conductivity of graphite can enhance the thermal conductivity of n-tetradecane, further accelerating the heat conduction during phase change. Encapsulated inside a plastic shell, it drives the compressor body 6 to cool the inside of the direct-cooling refrigerator body 1. One side of the compressor body 6 is directly located inside the freezer compartment 4, which will quickly cool the freezer compartment 4. Then the cold air is conducted to the refrigerator compartment 5. The heat conduction plate 9 is installed inside the direct-cooling refrigerator body 1 with mounting screws 10, which shields the phase change material block 8 and the compressor body 6 inside the direct-cooling refrigerator body 1, reducing the damage to the compressor body 6 and the heat conduction plate 9 during daily use.

[0035] Then, the two sets of filling plates 13 are placed on the upper and lower sides of the isolation layer 3 respectively to cover the splicing area between the heat-conducting plate 9 and the isolation layer 3. The filling plates 13 are then inserted into the middle of the isolation layer 3. Before inserting the filling plates 13 into the isolation layer 3, the two sets of locking plates 17 are moved, pushing the locking plates 17 to slide inside the sliding groove 15 and compressing the telescopic spring 16, causing it to contract. At this point, the filling plates 13 are inserted into the isolation layer 3. The sliding groove 14 on the outer side of the filling plates 13 then engages with the limiting block 12 on the outer side of the filling plates 13. This achieves the effect of installing two sets of filling plates 13 on the outside of the isolation layer 3. Furthermore, when the filling plates 13 are fully inserted into the isolation layer 3, the retaining plate 17 is released, the telescopic spring 16 returns to its original position, and the filling plates 13 are snapped into the inside of the isolation layer 3. At the same time, the two sets of flat plates 11 are fixed to the outside of the isolation layer 3, making the area for placing items more flat when using the direct-cooling refrigerator body 1, thus improving the practicality and aesthetics of use. The use of the compensation groove 18 allows the retaining plate 17 to sink into the isolation layer 3, preventing it from protruding and affecting use.

[0036] By using the cold storage component and the disassembly mechanism together, when using the direct-cooling refrigerator body 1, the internal phase change material block 8 can be divided into multiple groups by the mounting bracket 7, and each block can be disassembled, making it modular. When it is necessary to disassemble or maintain the direct-cooling refrigerator body 1, it is more convenient and reliable, further improving the practicality of the device and saving maintenance costs. The phase change material block 8 uses composite materials, with n-tetradecane and expanded graphite working together to complement each other, further improving the cold storage capacity of the cold storage component.

[0037] Example 2 like Figure 1 - Figure 2 , Figure 3 - Figure 6 As shown, a heat dissipation hole A19 is provided on the top of the outer side of the compressor body 6, and a sealing block 20 is provided inside the heat dissipation hole A19. Heat dissipation holes B21 are provided on both sides of the outer side of the compressor body 6, and a guide pipe 22 is fixedly connected to the outer side of the heat dissipation hole B21. A release hole 23 is provided inside the direct cooling refrigerator body 1, and the release hole 23 is connected to the guide pipe 22. A filling groove 24 is provided on the side of the heat conduction plate 9 near the compressor body 6. A circulation groove 25 is provided inside the isolation layer 3, and the circulation groove 25 is connected to the compressor body 6.

[0038] During operation, the heat generated by the compressor body 6 preferentially escapes through the heat dissipation vent A19. Since hot air has a lower density, pointing the heat dissipation vent A19 upwards improves heat dissipation efficiency. When frost forms on the surface of the heat-conducting plate 9 inside the freezer compartment 4 due to prolonged use, the heat dissipation vent A19 is sealed with the sealing block 20, and the protective door 2 is opened, keeping the direct-cooling refrigerator body 1 open. The hot air generated by the compressor body 6 then exits through the heat dissipation vent B21 and enters the direct-cooling refrigerator body through the guide pipe 22. Inside the main body 1, the frost on the surface of the heat-conducting plate 9 is cleaned by the release hole 23, saving the need to defrost the inside of the freezer compartment 4. At the same time, the filling groove 24 opened on the side of the heat-conducting plate 9 near the compressor body 6 can be filled with thermally conductive adhesive, so that the compressor body 6 and the heat-conducting plate 9 are in close contact, reducing the impact of the high thermal resistance of the air on the cooling efficiency of the direct-cooling refrigerator body 1. Furthermore, during use, the cold air generated by the compressor body 6 will flow into the isolation layer 3 along the circulation groove 25, further improving the cooling efficiency of the device in actual use.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cold accumulating device for a direct-cooling refrigerator, characterized by: The refrigerator includes a direct-cooling refrigerator body (1), a protective door (2) is hinged to one side of the outside of the direct-cooling refrigerator body (1), and a partition component is provided inside the direct-cooling refrigerator body (1); The cold storage component is located inside the main body (1) of the direct-cooling refrigerator. The cold storage component includes a disassembly mechanism, a filling mechanism and a snap-fit ​​limiting mechanism. The filling mechanism and the snap-fit ​​limiting mechanism are used in conjunction.

2. The cold accumulating device of a direct cooling type refrigerator according to claim 1, wherein: The partition assembly includes an isolation layer (3), a freezer compartment (4), a refrigerator compartment (5), and a compressor body (6). The freezer compartment (4) is located at the bottom inside the direct-cooling refrigerator body (1). The isolation layer (3) is fixedly connected to the middle inside the direct-cooling refrigerator body (1). The refrigerator compartment (5) is located at the top inside the direct-cooling refrigerator body (1). The freezer compartment (4) and the refrigerator compartment (5) are separated by the isolation layer (3). The compressor body (6) is fixedly connected inside the freezer compartment (4).

3. The cold accumulating device of the direct cooling type refrigerator according to claim 2, characterized in that: The cold storage component includes a mounting bracket (7) and a phase change material block (8). The mounting bracket (7) is fixed to one side of the main body (1) of the direct-cooling refrigerator. Multiple sets of phase change material blocks (8) are installed inside the mounting bracket (7).

4. The cold accumulating device of the direct cooling type refrigerator according to claim 3, wherein: The disassembly mechanism includes a heat-conducting plate (9), mounting screws (10), and a flat plate (11). The heat-conducting plate (9) is provided on one side inside the direct-cooling refrigerator body (1). The heat-conducting plate (9) slides in the middle of the isolation layer (3). The mounting screws (10) are slidably connected in the middle of the heat-conducting plate (9). The mounting screws (10) are threadedly connected to the direct-cooling refrigerator body (1). Flat plates (11) are provided on both sides outside the isolation layer (3).

5. The cold accumulating device of the direct cooling type refrigerator according to claim 4, characterized in that: The filling mechanism includes a limiting block (12), a filling plate (13) and a sliding groove (14). The limiting block (12) is fixedly connected to the top of the outer side of the flat plate (11). The filling plate (13) is slidably connected inside the isolation layer (3). Multiple sets of sliding grooves (14) are opened on the outer side of the filling plate (13). The limiting block (12) slides inside the sliding groove (14).

6. The cold accumulating device of the direct cooling type refrigerator according to claim 2, wherein: The locking and limiting mechanism includes a sliding groove (15), a telescopic spring (16), a locking plate (17), and a compensation groove (18). The sliding groove (15) is provided on one side of the outer side of the isolation layer (3). The telescopic spring (16) is fixedly connected inside the sliding groove (15). The locking plate (17) is fixedly connected to the end of the telescopic spring (16). The locking plate (17) slides inside the sliding groove (15). The compensation groove (18) is provided on the outer side of the sliding groove (15).

7. The cold accumulating device of the direct cooling type refrigerator according to claim 2, wherein: The compressor body (6) has a heat dissipation hole A (19) on the top of the outer side, and a sealing block (20) is provided inside the heat dissipation hole A (19). Heat dissipation holes B (21) are provided on both sides of the compressor body (6).

8. The cold accumulating device of the direct cooling type refrigerator according to claim 7, characterized in that: A guide pipe (22) is fixed to the outside of the heat dissipation hole B (21), and a release hole (23) is provided inside the main body (1) of the direct cooling refrigerator. The release hole (23) is connected to the guide pipe (22).

9. The cold accumulating device of the direct cooling type refrigerator according to claim 4, characterized in that: The heat-conducting plate (9) has a filling groove (24) on the side near the compressor body (6).

10. The cold accumulating device of the direct cooling type refrigerator according to claim 2, characterized in that: The isolation layer (3) is internally provided with a circulating groove (25) which is communicated with the compressor main body (6).

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