Power box, power box heat dissipation structure and installation method thereof

Abstract

The present application belongs to the technical field of power distribution, and particularly relates to a power supply box for changing voltage, and more particularly to a power supply box, a power supply box heat dissipation structure and a mounting method thereof. In the power supply box heat dissipation structure, a quick-release assembly with a strutting member is arranged, and after installation, the strutting member is rotated to outwardly stretch the dustproof cotton, so that the dustproof cotton is tightly attached to the edge of the air outlet, thereby avoiding the gap caused by shrinkage, preventing the entry of external dust into the box body through the gap, and ensuring the uniformity of airflow passing through the dustproof cotton. Meanwhile, when the quick-release assembly is docked, the dustproof cotton does not need to be pulled, thereby ensuring the accuracy of the docking of the quick-release assembly and the perforation, and thereby improving the convenience of the installation of the dustproof cotton while improving the sealing and filtering properties of the dustproof cotton.

Description

Technical Field

[0001] This invention belongs to the field of power distribution technology, specifically relating to a power supply box for changing voltage, and more particularly to a power supply box, a power supply box heat dissipation structure and its installation method. Background Technology

[0002] Power supply boxes, as indispensable equipment in power systems, are widely used in industrial, commercial, and residential fields, primarily for voltage conversion, power distribution, and circuit protection. To ensure the long-term stable operation of internal electrical components, power supply boxes typically require heat dissipation structures to prevent performance degradation or damage due to excessively high temperatures.

[0003] In related technologies, the heat dissipation structure of power supply boxes often uses a fan in combination with dustproof cotton to achieve forced convection heat dissipation while preventing external dust and moisture from entering the box.

[0004] There are generally two methods for fixing dustproof cotton. The first method uses a fan mounting plate and a grille cover to clamp and secure the cotton. However, regular disassembly and cleaning of the dustproof cotton can cause it to shrink, making it unable to completely cover the air outlet during reinstallation, thus affecting its filtration efficiency and airflow uniformity. The second method uses connectors to fix the dustproof cotton to the edge of the air outlet, addressing the issue of shrinkage preventing complete coverage in the first method. However, in practice, because the dustproof cotton is soft and easily deformed, installing it directly with ordinary connectors requires pulling the cotton while aligning the connector with multiple mounting holes. This makes it difficult to quickly and accurately align the connector with the pre-set mounting holes, easily leading to misalignment. This results in a time-consuming and laborious installation process, severely impacting assembly efficiency and ease of operation.

[0005] Therefore, how to ensure that the dustproof cotton completely covers the air outlet while improving the ease of installation is a technical problem that urgently needs to be solved.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0007] This disclosure provides at least one power supply box, a power supply box heat dissipation structure, and an installation method thereof.

[0008] In a first aspect, embodiments of this disclosure provide a power supply box heat dissipation structure, including: The mounting plate has an air outlet. A heat dissipation component is fixedly mounted on the air outlet; The heat dissipation component includes: A fan mounting base plate is located inside the air outlet; A cooling fan is mounted on the fan mounting base plate; A grille cover is provided on the outside of the air outlet; Dustproof cotton is used to cover the air outlet and is disposed between the fan mounting base plate and the grille cover plate; The size of the air outlet is smaller than the size of the grille cover, and the size of the air outlet is larger than the size of the cooling fan; A quick-release assembly passes through the perforations of the grille cover and the dustproof cotton in sequence and is then installed on the fan mounting base plate, thereby mounting the fan mounting base plate, the dustproof cotton, and the grille cover plate on the mounting plate; The quick-release component has a support member on its side wall, which is configured to open the dustproof cotton outward from the center of the air outlet. The quick-release component is positioned near the edge of the air outlet.

[0009] In one alternative embodiment, the quick-release assembly includes: The quick-release pin has a support piece on its side wall; The fan mounting base plate is provided with a mounting groove; After the quick-release pin is inserted into the mounting slot, the fan mounting base plate and the dustproof cotton are installed on the grille cover plate. The quick-release pin rotates under external force, thereby causing the expansion member to rotate and push the dustproof cotton outwards from the center of the air outlet.

[0010] In one alternative embodiment, the expander includes: The sleeve is slidably mounted on the quick-release pin and guided by a guide slider; The sidewall of the sleeve extends radially outward to form a support plate; The sleeve is embedded in the perforation of the dustproof cotton.

[0011] In one optional embodiment, a deformation groove is provided on the side wall of the sleeve opposite to the opening position of the expansion plate; During the process of inserting the quick-release pin into the mounting slot, the deformation groove is positioned away from the center of the air outlet. After the quick-release pin is inserted into the mounting slot, the quick-release pin is rotated by an external force, causing the expansion plate to rotate to the center opposite to the air outlet, so as to push the dustproof cotton outwards from the center opposite to the air outlet.

[0012] In one optional embodiment, the inner wall of the expander is provided with a groove; The guide slider is slidably disposed within the groove.

[0013] In one alternative embodiment, the quick-release pin includes: The pin has a limit plate at its top; The bottom of the pin is elastically connected to the plug sleeve in the mounting groove by a return spring; The sidewall of the pin is fitted with an elastic protrusion; The inner wall of the plug sleeve is provided with a limiting recess; After the quick-release pin is inserted into the mounting slot, the elastic protrusion of the pin shaft cooperates with the limiting recess, so that the limiting pressure plate installs the fan mounting base plate and the dustproof cotton on the grille cover plate.

[0014] In one alternative embodiment, the number of the elastic protrusions is two; The two elastic protrusions are symmetrically arranged on the side wall of the pin.

[0015] In one optional embodiment, the air outlet is square-shaped; The number of quick-release components is multiple; Multiple quick-release components are arranged around the air outlet.

[0016] Secondly, embodiments of this disclosure also provide a power supply box, comprising: Box body; The heat dissipation structure of the power supply box, as described above, is located at the bottom of the box body.

[0017] Thirdly, this disclosure also provides an installation method for a power supply box heat dissipation structure as described above, the installation method comprising: Secure the cooling fan to the fan mounting base plate; Install the fan mounting base plate, dustproof cotton, and grille cover plate in sequence at the air outlet; After passing the quick-release components through the perforations in the grille cover and dustproof cotton, they are installed on the fan mounting base plate. Rotate the quick-release assembly to push the dustproof cotton outwards from the center of the air outlet.

[0018] The beneficial effects of this invention are that the power supply box, its heat dissipation structure, and its installation method, by incorporating a quick-release assembly with a support member, allow the dustproof cotton to be opened outwards from the center of the air outlet after installation by rotating the support member. This ensures the dustproof cotton tightly fits against the edge of the air outlet, preventing gaps caused by shrinkage. This not only prevents external dust from entering the box through gaps but also ensures uniform airflow as it passes through the dustproof cotton. Furthermore, the quick-release assembly eliminates the need to pull the dustproof cotton during connection, ensuring accurate alignment between the quick-release assembly and the perforations. This improves both the sealing and filtration properties of the dustproof cotton and the ease of installation.

[0019] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the power supply box provided in an embodiment of the present disclosure; Figure 2 This is a schematic diagram of the heat dissipation structure of the power supply box provided in an embodiment of this disclosure; Figure 3 This is a cross-sectional view of the heat dissipation structure of the power supply box provided in an embodiment of this disclosure; Figure 4 A cross-sectional view of a quick-release assembly provided in an embodiment of this disclosure; Figure 5 This is a schematic diagram of the structure of the quick-release component provided in the embodiments of this disclosure; Figure 6 A partial structural diagram of the quick-release component and dustproof cotton provided in the embodiments of this disclosure; Figure 7 A flowchart illustrating the installation method of the heat dissipation structure of the power supply box provided in the embodiments of this disclosure.

[0023] In the diagram: 100, Mounting plate; 110, Air outlet; 200, Heat dissipation assembly; 210, Fan mounting base plate; 220, Cooling fan; 230, Grille cover; 240, Quick-release assembly; 241, Quick-release plug pin; 2411, Pin shaft; 2412, Limiting pressure plate; 2413, Return spring; 2414, Plug sleeve; 2415, Elastic protrusion; 2416, Limiting recess; 242, Spreading component; 2421, Sleeve; 2422, Spreading plate; 2423, Guide slider; 2424, Deformation groove; 2425, Slide groove; 243, Mounting groove; 250, Dustproof cotton; 300, Box body. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0026] Research has revealed two common methods for securing dustproof cotton. The first method uses a fan mounting plate and a grille cover to clamp and secure the cotton. However, regular disassembly and cleaning can cause the cotton to shrink, making it unable to completely cover the air outlet during reinstallation, thus affecting its filtration efficiency and airflow uniformity. The second method uses connectors to fix the cotton to the edge of the air outlet, addressing the shrinkage issue of the first method. However, in practice, due to the cotton's soft and easily deformable texture, direct installation with ordinary connectors is difficult, making it hard to quickly and accurately align the connectors with the pre-set mounting holes. This often results in misalignment, making installation time-consuming and laborious, severely impacting assembly efficiency and ease of operation.

[0027] Based on the above research, this disclosure provides a power supply box, a power supply box heat dissipation structure and its installation method. By setting a quick-release component 240 with a support 242, after installation, rotating the fixing component can open the dustproof cotton 250 outward from the center of the air outlet, so that the dustproof cotton 250 fits tightly against the edge of the air outlet 110, avoiding gaps caused by shrinkage. This not only prevents external dust from entering the box from the gaps, but also ensures the uniformity of airflow when passing through the dustproof cotton 250.

[0028] The shortcomings of the above solutions are the result of the inventors' practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure embodiments in this article should be considered as contributions made by the inventors during the development of the present disclosure embodiments.

[0029] 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.

[0030] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0031] Please see Figure 1 and Figure 2 At least one embodiment provides a power supply box heat dissipation structure, including: a mounting plate 100 with an air outlet 110; and a heat dissipation assembly 200 fixedly mounted on the air outlet 110. The heat dissipation assembly 200 includes: a fan mounting base plate 210 disposed inside the air outlet 110; a cooling fan 220 disposed on the fan mounting base plate 210; a grille cover 230 disposed outside the air outlet 110; and a dustproof cotton 250 covering the air outlet 110 and disposed between the fan mounting base plate 210 and the grille cover. Between plates 230; a quick-release assembly 240, which passes through the perforations of the grille cover plate 230 and the dustproof cotton 250 in sequence, and is then installed on the fan mounting base plate 210, thereby installing the fan mounting base plate 210, the dustproof cotton 250, and the grille cover plate 230 on the mounting plate 100; wherein, the side wall of the quick-release assembly 240 is provided with a support member 242, after the quick-release assembly 240 has installed the fan mounting base plate 210, the dustproof cotton 250, and the grille cover plate 230 on the mounting plate 100, the quick-release assembly 240 is rotated. The support member 242 is configured to: align the dustproof cotton 250 with the center of the air outlet facing outwards (e.g., Figure 2 (As shown in F) it is spread open; the quick-release component 240 is set near the edge of the air outlet.

[0032] By incorporating a quick-release assembly 240 with a support 242, rotating the support after installation will open the dustproof cotton 250 outwards from the center of the air outlet, ensuring a tight fit between the dustproof cotton 250 and the edge of the air outlet 110. This avoids gaps caused by shrinkage, preventing external dust from entering the housing and ensuring uniform airflow as it passes through the dustproof cotton 250. Furthermore, the quick-release assembly eliminates the need to pull the dustproof cotton during connection, ensuring accurate alignment with the perforations. This improves both the sealing and filtration properties of the dustproof cotton, while also enhancing the ease of installation.

[0033] Please see Figure 3 and Figure 4 The quick-release assembly 240 includes: a quick-release pin 241 with a support member 242 on its side wall; the fan mounting base plate 210 has a mounting groove 243; after the quick-release pin 241 is inserted into the mounting groove 243, the fan mounting base plate 210 and the dustproof cotton 250 are mounted on the grille cover plate 230; the quick-release pin 241 rotates under external force, thereby driving the support member 242 to rotate, so as to push the dustproof cotton 250 outward from the center of the air outlet.

[0034] The quick-release pin 241 and the mounting slot 243 work together to achieve quick positioning and initial fixation of the fan mounting base plate 210, dustproof cotton 250 and grille cover plate 230. The pin can rotate when subjected to external force to drive the expansion member 242 to rotate. The operation is simple and reliable, and it is convenient to quickly reinstall the dustproof cotton 250 and restore the expansion state after disassembling and cleaning the dustproof cotton 250.

[0035] The expansion member 242 includes: a sleeve 2421, which is slidably disposed on the quick-release plug pin 241 and guided by a guide slider 2423; the side wall of the sleeve 2421 extends radially outward to form an expansion plate 2422; the sleeve 2421 is embedded in the perforation of the dustproof cotton 250.

[0036] During rotation, the expansion member 242 can slide along the quick-release pin 241, and the expansion plate 2422 applies a uniform radial expansion force to the dustproof cotton 250, which improves the stability and reliability of the expansion effect.

[0037] Please see Figure 5 and Figure 6The sleeve 2421 has a deformation groove 2424 at the position opposite to the opening position of the support plate 2422. During the process of inserting the quick-release pin 241 into the mounting groove 243, the deformation groove 2424 is positioned away from the center of the air outlet 110. After the quick-release pin 241 is inserted into the mounting groove 243, the quick-release pin 241 is rotated by external force, causing the support plate 2422 to rotate away from the center of the air outlet 110, so as to push the dustproof cotton 250 outward away from the center of the air outlet.

[0038] By setting the deformation groove 2424, when the quick-release pin 241 is initially inserted, the dustproof cotton 250 will not be subjected to the opening force of the expansion plate 2422. This facilitates the expansion plate 2422 to pass smoothly through the narrow space and enter the working position, and also generates an appropriate pre-tightening force after rotating into place, so that the dustproof cotton 250 is fully opened and tightly fits the edge of the air outlet 110, thereby making the dustproof cotton 250 tightly fit the edge of the air outlet 110 and completely covering the air outlet 110.

[0039] Please see Figure 5 The inner wall of the support member 242 is provided with a groove 2425; the guide slider 2423 is slidably disposed in the groove 2425.

[0040] The cooperation between the slide groove 2425 and the guide slider 2423 ensures that the quick-release pin 241 can be accurately inserted into the mounting groove 243 when inserted axially. During the rotation of the quick-release pin 241, the support member 242 will not deflect or shake, ensuring that the support plate 2422 always applies a supporting force to the dustproof cotton 250 in the predetermined direction.

[0041] Please see Figure 4 and Figure 6 The quick-release pin 241 includes: a pin 2411 with a limiting pressure plate 2412 at its top; the bottom of the pin 2411 is elastically connected to the plug sleeve 2414 in the mounting groove 243 via a return spring 2413; the side wall of the pin 2411 is provided with an elastic protrusion 2415; the inner wall of the plug sleeve 2414 is provided with a limiting recess 2416; after the quick-release pin 241 is inserted into the mounting groove 243, the elastic protrusion 2415 of the pin 2411 cooperates with the limiting recess 2416 to allow the limiting pressure plate 2412 to install the fan mounting base plate 210 and the dustproof cotton 250 on the grille cover plate 230.

[0042] The quick-release component 240 is quickly locked and unlocked by the engagement of the elastic protrusion 2415 and the limiting recess 2416, allowing for installation and disassembly without additional tools. The return spring 2413 assists in ejecting the pin 2411 during disassembly, enabling quick disassembly. The limiting recess 2416 is in a teardrop shape. When the pin 2411 is removed, the elastic protrusion 2415 slides out from the side wall of the limiting recess 2416 by rotating the pin 2411, allowing the pin 2411 to exit under the action of the return spring 2413.

[0043] It should be noted that there are two elastic protrusions 2415; the two elastic protrusions 2415 are symmetrically arranged on the side wall of the pin 2411.

[0044] Please see Figure 1 and Figure 2 The air outlet 110 is U-shaped; there are multiple quick-release components 240; multiple quick-release components 240 are arranged around the air outlet 110.

[0045] The method of fixing at multiple points around the air outlet 110 ensures that the dustproof cotton 250 can be evenly stretched in the entire circumference, avoiding local loosening or wrinkles caused by single-point stretching, and ensuring that the dustproof cotton 250 and the edge of the air outlet 110 are tightly fitted in all directions, eliminating gaps caused by shrinkage of the dustproof cotton 250.

[0046] It should be noted that the size of the air outlet 110 is smaller than the size of the grille cover 230, and the size of the air outlet 110 is larger than the size of the cooling fan 220.

[0047] Please see Figure 1 This disclosure also provides a power supply box, including: a box body 300; and a power supply box heat dissipation structure as described above, which is disposed at the bottom of the box body 300.

[0048] By setting a quick-release component 240 with a support 242, the dustproof cotton 250 can be opened outwards from the center of the air outlet by rotating the fixing component after installation, so that the dustproof cotton 250 fits tightly against the edge of the air outlet 110, avoiding gaps caused by shrinkage. This not only prevents external dust from entering the box from the gaps, but also ensures the uniformity of airflow when passing through the dustproof cotton 250.

[0049] This disclosure also provides an installation method for a power supply box with the heat dissipation structure described above. By providing a quick-release assembly 240 with a support 242, after installation, rotating the support will open the dustproof cotton 250 outward from the center of the air outlet, so that the dustproof cotton 250 fits tightly against the edge of the air outlet 110, avoiding gaps caused by shrinkage. This prevents external dust from entering the box from the gaps and ensures the uniformity of airflow when passing through the dustproof cotton 250.

[0050] Specifically, the installation method includes: S110: Fix the cooling fan 220 onto the fan mounting base plate 210; S120: Install the fan mounting base plate 210, dustproof cotton 250 and grille cover plate 230 in sequence at the air outlet 110; S130: After passing the quick-release component 240 through the perforations of the grille cover plate 230 and the dustproof cotton 250 in sequence, install it on the fan mounting base plate 210; S140: Rotate the quick-release assembly 240 so that the support member 242 pushes the dustproof cotton 250 outwards from the center of the air outlet.

[0051] In summary, the present invention provides a power supply box, a power supply box heat dissipation structure, and an installation method thereof. The power supply box heat dissipation structure includes: a mounting plate 100 with an air outlet 110; and a heat dissipation assembly 200 fixedly mounted on the air outlet 110. The heat dissipation assembly 200 includes: a fan mounting base plate 210 disposed inside the air outlet 110; a cooling fan 220 disposed on the fan mounting base plate 210; a grille cover 230 disposed outside the air outlet 110; and a dustproof cotton 250 covering the air outlet 110 and disposed between the fan mounting base plate 210 and the grille cover 230. A quick-release assembly 240 passes through the perforations of the grille cover 230 and the dustproof cotton 250 in sequence and is then installed on the fan mounting base plate 210, thereby mounting the fan mounting base plate 210, the dustproof cotton 250, and the grille cover 230 on the mounting plate 100. The quick-release assembly 240 has a support member 242 on its side wall. After the quick-release assembly 240 has installed the fan mounting base plate 210, the dustproof cotton 250, and the grille cover 230 on the mounting plate 100, rotating the quick-release assembly 240 causes the support member 242 to push the dustproof cotton 250 outwards from the center of the air outlet. By incorporating a quick-release assembly 240 with a support 242, rotating the support after installation will open the dustproof cotton 250 outwards from the center of the air outlet, ensuring a tight fit between the dustproof cotton 250 and the edge of the air outlet 110. This avoids gaps caused by shrinkage, preventing external dust from entering the housing and ensuring uniform airflow as it passes through the dustproof cotton 250. Furthermore, the quick-release assembly eliminates the need to pull the dustproof cotton during connection, ensuring accurate alignment with the perforations. This improves both the sealing and filtration properties of the dustproof cotton, while also enhancing the ease of installation.

[0052] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0053] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0054] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0055] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0056] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A heat dissipation structure for a power supply box, characterized in that, include: Mounting plate (100) has an air outlet (110) thereon; A heat dissipation assembly (200) is fixedly mounted on the air outlet (110); The heat dissipation component (200) includes: A fan mounting base plate (210) is disposed inside the air outlet (110); A cooling fan (220) is mounted on the fan mounting base plate (210); A grille cover (230) is disposed on the outside of the air outlet (110); Dustproof cotton (250) covers the air outlet (110) and is disposed between the fan mounting base plate (210) and the grille cover plate (230); The size of the air outlet (110) is smaller than the size of the grille cover (230), and the size of the air outlet (110) is larger than the size of the cooling fan (220); The quick-release assembly (240) passes through the perforations of the grille cover (230) and the dustproof cotton (250) in sequence and is then installed on the fan mounting base plate (210); The quick-release component (240) has a support (242) on its side wall and is configured to: push the dustproof cotton (250) outward from the center of the air outlet (110); The quick-release component (240) is positioned near the edge of the air outlet.

2. The power supply box heat dissipation structure as described in claim 1, characterized in that, The quick-release assembly (240) includes: A quick-release pin (241) has a support (242) on its side wall. The fan mounting base plate (210) is provided with a mounting groove (243); After the quick-release pin (241) is inserted into the mounting slot (243), the fan mounting base plate (210) and the dustproof cotton (250) are installed on the grille cover plate (230). The quick-release pin (241) rotates under external force, thereby causing the expansion member (242) to rotate, so as to push the dustproof cotton (250) outward from the center of the air outlet (110).

3. The power supply box heat dissipation structure as described in claim 2, characterized in that, The expander (242) includes: The sleeve (2421) is slidably disposed on the quick-release pin (241) and guided by the guide slider (2423); The sidewall of the sleeve (2421) extends radially outward to form a support plate (2422). The sleeve (2421) is embedded in the perforation of the dustproof cotton (250).

4. The power supply box heat dissipation structure as described in claim 3, characterized in that, A deformation groove (2424) is provided on the side wall of the sleeve (2421) at the position opposite to the opening position of the support plate (2422). During the process of inserting the quick-release pin (241) into the mounting groove (243), the deformation groove (2424) is set away from the center of the air outlet (110); After the quick-release pin (241) is inserted into the mounting slot (243), the quick-release pin (241) is rotated by an external force, causing the expansion plate (2422) to rotate to the center opposite to the air outlet (110), so as to push the dustproof cotton (250) outward from the center opposite to the air outlet (110).

5. The power supply box heat dissipation structure as described in claim 3, characterized in that, The inner wall of the support member (242) is provided with a groove (2425); The guide slider (2423) is slidably disposed within the groove (2425).

6. The power supply box heat dissipation structure as described in claim 2, characterized in that, The quick-release pin (241) includes: Pin (2411), with a limit plate (2412) on its top; The bottom of the pin (2411) is elastically connected to the plug sleeve (2414) in the mounting groove (243) by a return spring (2413); The side wall of the pin (2411) is fitted with an elastic protrusion (2415). The inner wall of the plug sleeve (2414) is provided with a limiting recess (2416). After the quick-release pin (241) is inserted into the mounting groove (243), the elastic protrusion (2415) of the pin (2411) cooperates with the limiting recess (2416) so that the limiting pressure plate (2412) installs the fan mounting base plate (210) and the dustproof cotton (250) on the grille cover plate (230).

7. The power supply box heat dissipation structure as described in claim 6, characterized in that, The number of the elastic protrusions (2415) is two; The two elastic protrusions (2415) are symmetrically arranged on the side wall of the pin (2411).

8. The power supply box heat dissipation structure as described in claim 1, characterized in that, The air outlet (110) is square-shaped; The number of the quick-release components (240) is multiple; Multiple quick-release components (240) are arranged around the air outlet (110).

9. A power supply box, characterized in that, include: box body(300); The heat dissipation structure of the power supply box as described in claim 1 is disposed on the box body (300).

10. An installation method for a power supply box heat dissipation structure as described in any one of claims 1-8, characterized in that, The installation method includes: Fix the cooling fan (220) to the fan mounting base plate (210); Install the fan mounting base plate (210), dustproof cotton (250), and grille cover plate (230) in sequence at the air outlet (110); After passing through the perforations in the grille cover (230) and dustproof cotton (250) in sequence, the quick-release assembly (240) is installed on the fan mounting base plate (210); Rotate the quick-release assembly (240) to cause the spreader (242) to spread the dustproof cotton (250) outward.

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