Novel bottom heat dissipation structure and method for refrigerator

Abstract

The invention discloses a novel bottom heat dissipation structure and method for a refrigerator. The novel bottom heat dissipation structure comprises a partition unit and a heat dissipation assembly, the partition unit is arranged on a refrigerator body and used for distributing components, and the heat dissipation assembly is arranged on the partition unit and used for dissipating heat of the components. All parts are reasonably distributed through the partition units, front-back direct air inlet and outlet arrangement of the heat dissipation assembly is matched, the small platform width and the bottom heat dissipation requirement of the air-cooled refrigerator can be met, the situation that due to the fact that the occupied space of the parts is large and the space between the parts is too small, heat accumulation at the bottom of the refrigerator influences use is avoided, additional air blocking strips are not needed for flow guiding, and the cost is reduced. The ventilation assembly performs ventilation protection on parts in the partition units, dust and foreign matter invasion and external force damage risks are reduced, meanwhile, the positioning assembly is matched for rapid positioning of the ventilation assembly, the dismounting difficulty of daily maintenance and overhaul is reduced, and the service life of the parts is effectively prolonged.

Description

Technical Field

[0001] This invention relates to the technical field of refrigerators, and more particularly to a novel bottom heat dissipation structure and method for refrigerators. Background Technology

[0002] A refrigerator is a household appliance that uses a refrigeration system to lower the internal temperature to preserve food, medicine and other items for a long time. It is widely used in homes, businesses and medical settings. Its core function is to use a compressor to drive the refrigerant to transfer heat in thermodynamic cycles such as condensation and evaporation, thereby maintaining a low-temperature environment inside the refrigerator.

[0003] During refrigerator operation, the bottom is the main area for heat generation and dissipation. Core refrigeration components such as the compressor and condenser are usually integrated in the bottom space. When the compressor is working, it generates a lot of heat due to mechanical operation and refrigerant compression. The condenser releases the heat in the refrigerant through heat exchange. If the heat at the bottom cannot be dissipated in time, it will cause the components to operate at excessively high temperatures, reduce refrigeration efficiency, increase energy consumption, and even shorten the service life of the equipment.

[0004] However, some traditional refrigerators use a left-right air intake and exhaust design for bottom cooling, requiring deflectors to control the airflow direction. However, the combination of axial fans and fins requires a large placement space and is mostly suitable for refrigerators with wide platforms. In addition, the compressor mounting plate is not compatible with the side cooling solution, which increases manufacturing costs. Furthermore, traditional axial fans have low air pressure and occupy a lot of space, making them difficult to place in the narrow compressor compartment and unsuitable for refrigerators with narrow platforms. Moreover, because the bottom is close to the ground and the ventilation structure is exposed, it is easy for dust to accumulate and insects to be attracted, which not only affects the heat dissipation efficiency but also increases the risk of component contamination and damage. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] In view of the problems existing in the above-mentioned novel bottom heat dissipation structure and method for refrigerators, the present invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a novel bottom heat dissipation structure and method for refrigerators. This invention aims to solve the problems that "most traditional refrigerators use a left-right air intake and exhaust design for bottom heat dissipation in the compressor compartment, which requires wind deflectors to control the airflow direction. However, the combination of axial flow fans and fins requires a large placement space and is mostly suitable for refrigerators with a wide platform. At the same time, the compressor mounting plate is not compatible with the side cooling solution, which increases manufacturing costs. In addition, traditional axial flow fans have low air pressure and occupy a lot of space, making it difficult to place them in a small compressor compartment. They are not suitable for refrigerators with a narrow platform. Furthermore, because the bottom is close to the ground and the ventilation structure is exposed, it is easy for dust to adhere and insects to be attracted, which affects heat dissipation efficiency and increases the risk of component contamination and damage."

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution, including: A partitioning unit is provided on the refrigerator body and is used for the distribution of components; a heat dissipation assembly is provided on the partitioning unit and is used for heat dissipation of components. The ventilation component and the positioning component are both installed on the refrigerator body. The ventilation component and the positioning component are used for ventilation protection of the partition unit and for easy disassembly and assembly of the ventilation component.

[0009] As a preferred embodiment of the novel bottom heat dissipation structure of a refrigerator according to the present invention, the partition unit includes a compression chamber, which is fixedly connected to the bottom surface of the refrigerator body. A water collection box is fixedly connected to the compression chamber, which is located in the rightmost area of ​​the compression chamber. A condenser and a centrifugal fan are fixedly connected to the water collection box, and the condenser and the centrifugal fan are arranged in a front-to-back parallel arrangement. A compressor is fixedly connected to the compression chamber, which is located in the left side area of ​​the compression chamber.

[0010] As a preferred embodiment of the novel bottom heat dissipation structure for a refrigerator described in this invention, the heat dissipation component includes an air outlet duct, which is fixedly connected to a centrifugal fan and a compression chamber, and the air outlet duct is arranged at an angle.

[0011] As a preferred embodiment of the novel bottom heat dissipation structure of a refrigerator described in this invention, the ventilation component includes two support blocks, both of which are fixedly connected to one side surface of the refrigerator body. A back plate is movably disposed within the two support blocks, and multiple air inlets are provided on the back plate.

[0012] As a preferred embodiment of the novel bottom heat dissipation structure for a refrigerator according to the present invention, the positioning component includes a bracket, which is fixedly connected to one side surface of the refrigerator body. A top rod is slidably connected to the bracket, and an insertion rod is fixedly connected to one end of the top rod. An insertion hole is provided on the back plate, and the insertion hole is inserted into the insertion rod. A round block is fixedly connected to the other end of the top rod, and a spring is sleeved on the arm of the top rod.

[0013] As a preferred embodiment of the novel bottom heat dissipation structure for a refrigerator according to the present invention, a shield is fixedly connected to the compression chamber, and the shield is fixedly connected to the inner wall of the refrigerator body.

[0014] As a preferred embodiment of the novel bottom heat dissipation structure for a refrigerator described in this invention, the back panel is matched with the refrigerator body, and an insect repellent box is fixedly connected to the back panel, with insect repellent medicine disposed inside the insect repellent box.

[0015] As a preferred embodiment of the novel bottom heat dissipation structure for a refrigerator described in this invention, the condenser and the centrifugal fan are arranged parallel to the depth direction of the refrigerator body, forming a front-to-back air duct.

[0016] In a preferred embodiment of the novel bottom heat dissipation structure for a refrigerator described in this invention, the two ends of the spring are respectively fixedly connected to the bracket and the insert rod.

[0017] A novel bottom heat dissipation method for a refrigerator, applicable to any of the above-mentioned novel bottom heat dissipation structures for refrigerators, includes the following steps: Step 1: Component partition heat dissipation starts. The compressor generates heat in the left area of ​​the compression chamber. The condenser starts to dissipate heat on the water collection box at the same time. The centrifugal fan starts and drives airflow circulation through the front and rear ventilation channels parallel to the depth direction of the refrigerator body. Step 2: Airflow circulation for heat dissipation. External air enters the compression chamber through the air inlet on the back panel. The airflow passes through the condenser for heat exchange. The centrifugal fan guides the hot air into the obliquely set air outlet duct, efficiently expelling the hot air from the outside of the refrigerator body. Step 3: Protection and insect prevention mechanism. The back panel covers the compression chamber with a support block to block dust and foreign objects. The insect repellent box releases the agent to form an insect prevention barrier in the air intake path. The shield guides the airflow and prevents internal components from being contaminated. Step 4: Maintenance and disassembly / removal operation. When removing the back panel, pull the round block outward to drive the top rod to compress the spring. The insertion rod disengages from the insertion hole of the back panel and slides along the support block to remove the back panel. When installing the back panel, place the back panel along the support block against the refrigerator body. The spring will automatically reset the back panel and push the insertion rod into the insertion hole to complete the locking, thus fixing the back panel in place.

[0018] The beneficial effects of this invention are: By rationally distributing the components in partitioned units and coordinating with the front and rear direct air intake and exhaust settings of the heat dissipation components, it can adapt to the heat dissipation needs of small platform widths and the bottom of air-cooled refrigerators. This avoids the accumulation of heat at the bottom of the refrigerator due to large components occupying too much space and being too close together, which would affect the use of the refrigerator. It also eliminates the need for additional air deflectors. The ventilation components provide ventilation protection for the components within the partitioned units, reducing the risk of dust, foreign objects intrusion, and external damage. At the same time, the positioning components enable quick positioning of the ventilation components, reducing the difficulty of disassembly and assembly for daily maintenance and repair, and effectively extending the service life of the components. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a frontal schematic diagram of the overall structure of a novel bottom heat dissipation structure and method for a refrigerator proposed in this invention. Figure 2 This is a schematic diagram of the positioning component structure proposed in this invention; Figure 3 This is a side view of the overall structure of a novel bottom heat dissipation structure and method for a refrigerator proposed in this invention. Figure 4 This is a schematic diagram of the internal structure of the refrigerator body proposed in this invention; Figure 5 This is a schematic diagram of the partition unit structure proposed in this invention.

[0020] In the picture: 100. Refrigerator body; 200. Partition unit; 201. Compression chamber; 202. Water collection box; 203. Condenser; 204. Centrifugal fan; 205. Compressor; 2011. Shielding cover; 300. Heat dissipation components; 301. Air outlet duct; 400. Ventilation assembly; 401. Support block; 402. Back panel; 403. Air inlet; 4021. Insect repellent box; 500, Positioning component; 501, Bracket; 502, Top rod; 503, Insert rod; 504, Insertion hole; 505, Round block; 506, Spring. Detailed Implementation

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0025] Example 1 Reference Figures 1 to 5 This is the first embodiment of the present invention, which provides the following achievable effects: Partitioning unit 200, partitioning unit 200 is disposed on refrigerator body 100, partitioning unit 200 is used for component distribution, heat dissipation assembly 300, heat dissipation assembly 300 is disposed on partitioning unit 200, heat dissipation assembly 300 is used for heat dissipation of components. Ventilation component 400 and positioning component 500 are both installed on the refrigerator body 100. Ventilation component 400 and positioning component 500 are used for ventilation protection of partition unit 200 and ventilation component 400 for easy disassembly and assembly.

[0026] In use, the partition unit 200 rationally distributes the components and, together with the front and rear direct air intake and exhaust settings of the heat dissipation component 300, can adapt to the heat dissipation needs of small platform widths and the bottom of air-cooled refrigerators. This avoids the accumulation of heat at the bottom of the refrigerator due to the large space occupied by the components and their close spacing, which would affect the use of the refrigerator. It also eliminates the need for additional air deflectors. The ventilation component 400 provides ventilation protection for the components inside the partition unit 200, reducing the risk of dust, foreign object intrusion, and external force damage. At the same time, the positioning component 500 enables quick positioning of the ventilation component 400, reducing the difficulty of disassembly and assembly for daily maintenance and repair, and effectively extending the service life of the components.

[0027] Example 2 Reference Figures 1 to 5 This is the second embodiment of the present invention, which differs from the previous embodiment in that: The partition unit 200 includes a compression chamber 201, which is fixedly connected to the bottom surface of the refrigerator body 100. A water collection box 202 is fixedly connected to the compression chamber 201, which is located in the rightmost area of ​​the compression chamber 201. A condenser 203 and a centrifugal fan 204 are fixedly connected to the water collection box 202, and the condenser 203 and the centrifugal fan 204 are arranged in a front-to-back parallel arrangement. A compressor 205 is fixedly connected to the compression chamber 201, which is located in the leftmost area of ​​the compression chamber 201.

[0028] An independent working space is formed at the bottom of the refrigerator body 100 through the compression chamber 201. The condenser 203 and the centrifugal fan 204 are arranged side by side in the water collection box 202 area on the right, creating an efficient air duct to improve heat dissipation efficiency. The compressor 205 is placed independently in the left area, realizing the physical separation of heat dissipation components and power components, avoiding mutual heat interference. The partition setting optimizes space utilization, ensures orderly operation of each component, and reduces the risk of failure. The centrifugal fan 204 is used for the whole, and its air pressure is high. It is placed on the far right of the water collection box 202 with the condenser 203, arranged in front and behind. The fixed structure of the centrifugal fan 204 is equipped with air guides to realize direct air intake and exhaust for heat dissipation, so that there is no need for air deflectors to guide the airflow. The refrigerator body 100 is specifically the bottom area structure of the refrigerator, which is existing technology and will not be described in detail in this article.

[0029] Specifically, the heat dissipation component 300 includes an air outlet duct 301, which is fixedly connected to the centrifugal fan 204 and the compression chamber 201. The air outlet duct 301 is obliquely arranged.

[0030] The exhaust duct 301 is directly connected to the centrifugal fan 204 to ensure efficient exhaust of heat dissipation airflow. The angled duct structure avoids direct contact with the ground, reducing the interference of ground dust on the exhaust airflow. At the same time, it optimizes the airflow exhaust direction, reducing the risk of hot air accumulating at the bottom. Furthermore, the fixed connection between the exhaust duct 301 and the compression chamber 201 enhances stability. Together with the centrifugal fan 204, it forms a directional airflow channel, significantly improving heat dissipation efficiency.

[0031] Specifically, the ventilation assembly 400 includes two support blocks 401, both of which are fixedly connected to one side surface of the refrigerator body 100. A back plate 402 is movably disposed in both support blocks 401, and multiple air inlets 403 are provided on the back plate 402.

[0032] The backplate 402 is stably supported by two support blocks 401. The movable connection structure facilitates the quick disassembly and assembly of the backplate 402, improving maintenance convenience. The backplate 402 can effectively shield the internal components of the compression chamber 201, reducing the intrusion of dust and foreign objects. Multiple air inlets 403 ensure the smooth flow of air required for heat dissipation, forming a reasonable air intake path to facilitate protection and ventilation needs.

[0033] Specifically, the positioning component 500 includes a bracket 501, which is fixedly connected to one side surface of the refrigerator body 100. A top rod 502 is slidably connected to the bracket 501. One end of the top rod 502 is fixedly connected to an insertion rod 503. An insertion hole 504 is provided on the back plate 402, which is inserted into the insertion rod 503. A round block 505 is fixedly connected to the other end of the top rod 502. A spring 506 is sleeved on the arm of the top rod 502.

[0034] In use, the back panel 402 is fixed to one side of the refrigerator body 100 by the bracket 501. The top rod 502 and the plug rod 503 are connected and engaged. The spring force of the spring 506 is used to achieve a stable positioning of the back panel 402, preventing the back panel 402 from loosening or shifting during protection. When it is necessary to remove the back panel 402, the plug rod 503 can be driven to disengage from the plug hole 504 by pulling the round block 505 to one side, which can quickly release the fixation of the back panel 402. The operation is convenient and labor-saving.

[0035] Example 3 Reference Figures 1 to 5 This is the third embodiment of the present invention, which differs from the previous embodiment in that: A shield 2011 is fixedly connected to the compression chamber 201, and the shield 2011 is fixedly connected to the inner wall of the refrigerator body 100.

[0036] The shield 2011 is fixed to the compression chamber 201 and connected to the inner wall of the refrigerator body 100. It can effectively shield the internal components of the compression chamber 201, reduce the amount of condensation or debris falling into the refrigerator body 100, guide the airflow, optimize the integrity of the heat dissipation duct, and enhance the stability of the internal structure.

[0037] Specifically, the back panel 402 is matched with the refrigerator body 100, and an insect repellent box 4021 is fixedly connected to the back panel 402, and an insect repellent medicine is placed inside the insect repellent box 4021.

[0038] The insect repellent box 4021 fixed on the back panel 402 contains insect repellent, which can form an insect-proof barrier in the air intake area to prevent insects from entering the compression chamber 201 through the air intake 403. This does not affect the protective function of the back panel 402, and achieves long-term insect prevention through natural evaporation, thereby improving the safety of equipment operation.

[0039] Specifically, the condenser 203 and the centrifugal fan 204 are arranged parallel to the depth direction of the refrigerator body 100, forming a front-to-back air duct.

[0040] The condenser 203 and the centrifugal fan 204 are arranged along the depth of the refrigerator body 100 to form a front and rear through air duct. This optimizes the airflow path length and direction, allowing for full heat exchange when air flows through the condenser 203. The centrifugal fan 204 efficiently discharges hot air, reducing airflow resistance. The improved air duct connectivity enhances heat dissipation efficiency and ensures uniform heat dissipation of components.

[0041] Specifically, the two ends of the spring 506 are fixedly connected to the bracket 501 and the insertion rod 503, respectively.

[0042] The spring 506 fixes the bracket 501 and the insertion rod 503 at both ends respectively. It continuously applies a pushing force with the help of elastic potential energy to ensure that the insertion rod 503 is stably inserted into the insertion hole 504 and prevent the back plate 402 from loosening. After pulling to unlock, the spring 506 automatically resets and drives the insertion rod 503 to return to its position, realizing quick fixation. The elastic connection structure simplifies the disassembly and assembly operation, eliminates the need for manual alignment, ensures the long-term reliable operation of the positioning component 500, and improves the convenience of use.

[0043] A novel bottom heat dissipation method for a refrigerator, applicable to any of the above-mentioned novel bottom heat dissipation structures for refrigerators, characterized by comprising the following steps: Step 1: Component partition heat dissipation starts. The compressor 205 generates heat in the left area of ​​the compression chamber 201. The condenser 203 starts heat dissipation on the water collection box 202 at the same time. The centrifugal fan 204 starts and drives airflow circulation through the front and rear ventilation channels parallel to the depth direction of the refrigerator body 100. Step 2: Airflow circulation for heat dissipation. External air enters the compression chamber 201 through the air inlet 403 of the back panel 402. The airflow flows through the condenser 203 for heat exchange. The centrifugal fan 204 guides the hot air into the obliquely set air outlet duct 301, efficiently exhausting the hot air to the outside of the refrigerator body 100. Step 3: Protection and insect prevention mechanism. The back panel 402 covers the compression chamber 201 through the support block 401 to block dust and foreign objects. The insect repellent box 4021 volatilizes the agent to form an insect prevention barrier in the air intake path. The shield 2011 guides the airflow and prevents internal components from being contaminated. Step 4: Maintenance and disassembly / removal operation. When removing the back panel 402, pull the round block 505 outward to drive the top rod 502 to compress the spring 506. The insertion rod 503 disengages from the insertion hole 504 of the back panel 402 and slides along the support block 401 to remove the back panel 402. When installing the back panel 402, place the back panel 402 against the refrigerator body 100 along the support block 401. The spring 506 automatically resets the back panel 402, pushing the insertion rod 503 into the insertion hole 504 to complete the locking and achieve the installation and fixation of the back panel 402.

[0044] Example 4 Reference Figures 1 to 5 This is the fourth embodiment of the present invention, which differs from the previous embodiment in that: This embodiment provides a novel bottom heat dissipation method for a refrigerator. This heat dissipation method is applicable to the novel bottom heat dissipation structure of a refrigerator described in any one of embodiments 1-3 above. The method specifically includes: During operation, the compressor 205 in the left area generates heat, while the condenser 203 on the water collection box 202 in the right area simultaneously starts to dissipate heat. The two are physically separated by the partitioned layout within the compression chamber 201 to prevent heat accumulation. At this time, the centrifugal fan 204, running parallel to the condenser 203, starts, forming a directional airflow circulation through the front and rear ventilation ducts parallel to the depth of the refrigerator body 100. This allows outside air to enter the compression chamber 201 through the air inlet 403 on the back panel 402, first flowing through the condenser 203 to complete heat exchange, and then being driven by the centrifugal fan 204 to the outlet duct 301. The obliquely positioned outlet duct 301 adopts a tapered cross-section structure, enhancing airflow speed through the narrowing channel, efficiently expelling the dissipated hot air outside the refrigerator body 100, preventing heat accumulation at the bottom. Simultaneously, the back panel 402 is stably supported by the side supports 401. On the side of the refrigerator body 100, the insect repellent box 4021 fixed on one side uses the volatile components of the built-in insect repellent to diffuse through the ventilation structure to the air intake path and the periphery of the compression chamber 201, forming an insect barrier to prevent insects from entering through the air intake 403 or the gaps between components. The shield 2011 on the compression chamber 201 is fixed to the inner wall of the refrigerator body 100, further guiding the airflow and shielding the internal components. When internal maintenance is required, the round block 505 is pulled to one side, causing the top rod 502 to drive the insertion rod 503 to compress the spring 506, disengaging the insertion rod 503 from the insertion hole 504 on the back plate 402. The back plate 402 can then be slid off along the support block 401 for easy replacement of insect repellent and maintenance of components such as the condenser 203 and centrifugal fan 204. During installation, only the reverse operation is required. The elastic force of the spring 506 pushes the insertion rod 503 back into the insertion hole 504, achieving quick positioning and fixation of the back plate 402. It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A novel bottom heat dissipation structure for a refrigerator, characterized in that: include: A partition unit (200) is disposed on the refrigerator body (100) and is used for the distribution of components. A heat dissipation assembly (300) is disposed on the partition unit (200) and is used for heat dissipation of components. Ventilation component (400) and positioning component (500) are provided on the refrigerator body (100). The ventilation component (400) and positioning component (500) are respectively used for ventilation protection of the partition unit (200) and for easy disassembly and assembly of the ventilation component (400).

2. The novel bottom heat dissipation structure for a refrigerator according to claim 1, characterized in that: The partition unit (200) includes a compression chamber (201), which is fixedly connected to the bottom surface of the refrigerator body (100). A water collection box (202) is fixedly connected to the compression chamber (201). The water collection box (202) is located in the rightmost area inside the compression chamber (201). A condenser (203) and a centrifugal fan (204) are fixedly connected to the water collection box (202). The condenser (203) and the centrifugal fan (204) are arranged in a front-to-back parallel arrangement. A compressor (205) is fixedly connected to the compression chamber (201). The compressor (205) is located in the left side area inside the compression chamber (201).

3. The novel bottom heat dissipation structure for a refrigerator according to claim 2, characterized in that: The heat dissipation component (300) includes an air outlet duct (301), which is fixedly connected to a centrifugal fan (204) and a compression chamber (201). The air outlet duct (301) is obliquely arranged.

4. A novel bottom heat dissipation structure for a refrigerator according to claim 3, characterized in that: The ventilation assembly (400) includes two support blocks (401), both of which are fixedly connected to one side surface of the refrigerator body (100). A back plate (402) is movably arranged inside the two support blocks (401), and multiple air inlets (403) are opened on the back plate (402).

5. A novel bottom heat dissipation structure for a refrigerator according to claim 4, characterized in that: The positioning component (500) includes a bracket (501), which is fixedly connected to one side surface of the refrigerator body (100). A top rod (502) is slidably connected to the bracket (501). One end of the top rod (502) is fixedly connected to an insertion rod (503). An insertion hole (504) is provided on the back plate (402). The insertion hole (504) is inserted into the insertion rod (503). A round block (505) is fixedly connected to the other end of the top rod (502). A spring (506) is sleeved on the arm of the top rod (502).

6. A novel bottom heat dissipation structure for a refrigerator according to claim 5, characterized in that: A shield (2011) is fixedly connected to the compression chamber (201), and the shield (2011) is fixedly connected to the inner wall of the refrigerator body (100).

7. A novel bottom heat dissipation structure for a refrigerator according to claim 6, characterized in that: The back panel (402) is matched with the refrigerator body (100), and an insect repellent box (4021) is fixedly connected to the back panel (402), and an insect repellent drug is placed inside the insect repellent box (4021).

8. A novel bottom heat dissipation structure for a refrigerator according to claim 7, characterized in that: The condenser (203) and the centrifugal fan (204) are arranged parallel to the depth direction of the refrigerator body (100) and form a through air duct.

9. A novel bottom heat dissipation structure for a refrigerator according to claim 8, characterized in that: The two ends of the spring (506) are fixedly connected to the bracket (501) and the plug (503) respectively.

10. A novel bottom heat dissipation method for a refrigerator, the method being applicable to the novel bottom heat dissipation structure of a refrigerator according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Component partition heat dissipation starts. The compressor (205) generates heat in the left area of ​​the compression chamber (201). The condenser (203) starts heat dissipation on the water collection box (202) at the same time. The centrifugal fan (204) starts and drives airflow circulation through the front and rear ventilation channels parallel to the depth direction of the refrigerator body (100). Step 2: Airflow circulation for heat dissipation. External air enters the compression chamber (201) through the air inlet (403) of the back panel (402). The airflow flows through the condenser (203) for heat exchange. The centrifugal fan (204) guides the hot air into the obliquely set air outlet duct (301) to efficiently discharge the hot air outside the refrigerator body (100). Step 3: Protection and insect prevention mechanism. The back panel (402) covers the compression chamber (201) through the support block (401) to block dust and foreign objects. The insect repellent box (4021) volatilizes the agent to form an insect prevention barrier in the air intake path. The shield (2011) guides the airflow and prevents internal components from being contaminated. Step 4: Maintenance and disassembly operation. When disassembling the back panel (402), pull the round block (505) outward to drive the top rod (502) to compress the spring (506). The insertion rod (503) disengages from the insertion hole (504) of the back panel (402) and slides along the support block (401) to remove the back panel (402). When installing the back panel (402), place the back panel (402) against the refrigerator body (100) along the support block (401). The spring (506) automatically resets the back panel and pushes the insertion rod (503) into the insertion hole (504) to complete the locking and achieve the installation and fixation of the back panel (402).

Images