Ventilation and heat dissipation device of high and low voltage distribution box

Abstract

The invention discloses a ventilation and heat dissipation device for a high-low voltage distribution box, and the device comprises an air inlet assembly which is disposed at the outer side of a through hole of a power distribution cabinet body; the heat dissipation assembly further comprises a heat dissipation component, the mounting frame is arranged outside the air inlet assembly and the heat dissipation assembly, and bolt mounting work with the power distribution cabinet body is completed through the mounting frame; and the air supply assembly is arranged on the inner side of the heat dissipation assembly. According to the ventilation and heat dissipation device of the high-low voltage power distribution cabinet, limited space in the cabinet can be fully utilized, the heat dissipation device is prevented from occupying excessive independent space, other electronic elements and electrical circuits can be more reasonably arranged in the cabinet, targeted heat dissipation work can be carried out on the electronic elements installed on the installation rib plates, and the heat dissipation efficiency is improved. The problem of overheating of electronic components can be avoided, more uniform temperature distribution in the cabinet body can be ensured, the environmental stability in the cabinet is enhanced, and thus the performance and reliability of the whole power distribution cabinet are improved.

Description

Technical Field

[0001] This invention relates to the technical field of heat dissipation for high and low voltage distribution cabinets, specifically to a ventilation and heat dissipation device for high and low voltage distribution boxes. Background Technology

[0002] During operation, the internal temperature of high and low voltage switchgear rises due to the heat generated by electrical components. A good ventilation and heat dissipation system can effectively remove this heat, keeping the internal temperature within the allowable operating temperature range of the electrical components. Many electrical components operate normally between -20℃ and 50℃. Excessive temperature can lead to performance degradation, such as poor insulation and increased contact resistance, and may even damage the components, causing malfunctions. Therefore, appropriate ventilation and heat dissipation devices are generally installed inside high and low voltage switchgear to manage internal ventilation and heat dissipation.

[0003] Current market solutions typically employ axial flow fans installed inside the cabinet. These fans, driven by motors, rotate blades to generate axial airflow, expelling hot air from the cabinet. Axial flow fans have a large air volume, enabling them to quickly reduce the temperature inside the cabinet, as illustrated in application number 202322012401.6, which discloses a heat dissipation mechanism for a high-voltage distribution box with good heat dissipation performance.

[0004] However, when the aforementioned ventilation and heat dissipation device is used for ventilation and heat dissipation, the entire mechanism can only dissipate heat from the bottom of the distribution cabinet, resulting in low heat dissipation efficiency inside the distribution cabinet. It cannot specifically dissipate heat from the various electronic components inside the distribution cabinet. Furthermore, in order to achieve efficient heat dissipation inside the distribution cabinet, the entire ventilation and heat dissipation device is too large, which in turn makes the production cost of the entire ventilation and heat dissipation device too high. Summary of the Invention

[0005] The purpose of this invention is to provide a ventilation and heat dissipation device for high and low voltage distribution boxes, in order to solve the problems mentioned in the background art. Currently available ventilation and heat dissipation devices can only dissipate heat from the bottom of the distribution cabinet, resulting in low heat dissipation efficiency and an inability to specifically dissipate heat from the various electronic components inside the distribution cabinet. Furthermore, in order to achieve efficient heat dissipation, the ventilation and heat dissipation device is too large, which in turn leads to excessively high production costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a ventilation and heat dissipation device for a high and low voltage distribution box, including an air intake component, which is disposed on the outside of the perforation of the distribution cabinet for ventilation with the outside.

[0007] Heat dissipation components are installed inside the perforations in the distribution cabinet.

[0008] Also includes;

[0009] The mounting frame is provided on the outside of both the air intake component and the heat dissipation component. The mounting frame is used to complete the bolt installation work with the power distribution cabinet body.

[0010] An air supply assembly is located inside the heat dissipation assembly. Air supply pipes are provided at equal intervals on the outside of the air supply assembly for air supply. Both the air supply assembly and the air supply pipes are located towards the inside of the distribution cabinet.

[0011] Preferably, the air intake assembly includes a fixed outer cover and an installation assembly, wherein the fixed outer cover and the installation assembly are detachable and installable.

[0012] Preferably, the fixed outer cover has a U-shaped cross-section and is integrally installed with the mounting frame. The mounting frame has a rectangular frame structure, and the middle of the rectangular frame structure of the mounting frame is connected to the U-shaped opening structure of the fixed outer cover. A first air vent is provided at the lower outer side of the fixed outer cover, and a through mounting port is also provided on the outer side of the fixed outer cover.

[0013] Preferably, the mounting assembly includes a mounting plate, a handle, and a filter plate. The filter plates are evenly spaced on the inner side of the mounting plate, and the handle is fixed on the outer side of the mounting plate. The three sets of filter plates are staggered in height. The mounting plate and the mounting opening are interlocked and fixed with bolts.

[0014] Preferably, the heat dissipation component is a hollow rectangular structure, and its outer side is provided with a through-hole that penetrates through the perforation on the surface of the power distribution cabinet. An axial flow fan is provided inside the heat dissipation component, and a second through-hole is also provided on the inner side of the heat dissipation component. The second air outlet is fixed to the air supply component by a pipe clamp.

[0015] Preferably, the air supply assembly includes a fixed pipe, a mounting bracket, and a connecting pipe. The top of the fixed pipe is integrally mounted with a mounting bracket, and a mounting bracket is provided below the mounting bracket to fix it to the top of the heat dissipation assembly. The inner side of the connecting pipe is provided with mounting pipes at equal intervals.

[0016] Preferably, the inner side of the mounting pipe is provided with a threaded structure, and it is threadedly connected to one side of the air supply pipe.

[0017] Preferably, the air supply duct is cylindrical in shape, and the exterior of the cylindrical structure is evenly distributed with ventilation openings. Two adjacent air supply ducts are symmetrically arranged about the mounting ribs inside the distribution cabinet.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the ventilation and heat dissipation device of the high and low voltage distribution cabinet;

[0019] 1. Both the air intake component and the heat dissipation component are installed inside and outside the cabinet. The air supply component above the heat dissipation component is set towards the inner wall of the cabinet. Together with the air supply ducts set at equal intervals on its outer side, since the air supply ducts are set behind the mounting ribs inside the cabinet, the limited space inside the cabinet can be fully utilized. This avoids the heat dissipation device occupying too much independent space, allowing other electronic components and electrical circuits to be arranged more reasonably inside the cabinet. It can also perform targeted heat dissipation on the electronic components mounted on each mounting rib, which can not only prevent the electronic components from overheating, but also ensure a more uniform temperature distribution inside the cabinet and enhance the stability of the cabinet environment, thereby improving the performance and reliability of the entire power distribution cabinet.

[0020] 2. The entire device fits snugly against the inner wall of the cabinet, which not only takes up little space and has low cost, but also ensures that the heat dissipation device does not impose too many restrictions on the layout of other components. Components can be installed in the optimal layout, reducing failures caused by unreasonable layout.

[0021] 3. The air inlet assembly includes a fixed outer cover and an installation component. When the installation component is disassembled from the fixed outer cover, it can directly slide out the filter plate above it, thus facilitating subsequent disassembly and cleaning of the filter plate by the staff. At the same time, the first air outlet has a through-hole structure, which, together with the height setting of the three sets of filter plates, not only ensures the blocking of external impurities, but also ensures that the first air outlet can carry out efficient ventilation for a long time, extending the maintenance time and achieving the purpose of providing convenience and reducing the burden on maintenance personnel. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the present invention from a bottom view;

[0024] Figure 3 This is a partially enlarged structural diagram of the connection between the device and the cabinet of the present invention;

[0025] Figure 4 This is an enlarged structural diagram of the mounting location of the air intake component and the heat dissipation component of the present invention;

[0026] Figure 5 This is a schematic diagram of the ventilation and heat dissipation device of the present invention;

[0027] Figure 6 This is a schematic diagram of the disassembled structure of the fixed outer cover and the mounting components of the present invention;

[0028] Figure 7 This is an enlarged structural diagram of the connection between the connecting pipe and the air supply pipe of the present invention;

[0029] Figure 8 This is a partially enlarged structural diagram of the heat dissipation component of the present invention.

[0030] In the diagram: 1. Air inlet assembly; 11. Fixed outer cover; 111. First air outlet; 112. Mounting port; 12. Mounting assembly; 121. Mounting plate; 122. Handle; 123. Filter plate; 2. Heat dissipation assembly; 21. Through-hole; 22. Second air outlet; 3. Air supply assembly; 31. Fixed pipe; 32. Mounting bracket; 33. Connecting pipe; 331. Mounting pipe; 4. Mounting frame; 5. Axial flow fan; 6. Air supply duct. Detailed Implementation

[0031] The technical solutions of the embodiments 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, and 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.

[0032] Please see Figure 1-8 The present invention provides a technical solution: a ventilation and heat dissipation device for a high and low voltage distribution box, including an air inlet component 1, which is disposed on the outside of the perforation of the distribution cabinet for ventilation with the outside.

[0033] Heat dissipation component 2 is located inside the perforation in the power distribution cabinet body;

[0034] Also includes;

[0035] Mounting frame 4 is installed on the outside of both air intake component 1 and heat dissipation component 2. The mounting frame 4 is used to complete the bolt installation work with the power distribution cabinet body.

[0036] An air supply component 3 is located inside the heat dissipation component 2. Air supply pipes 6 are provided at equal intervals on the outside of the air supply component 3 for air supply. Both the air supply component 3 and the air supply pipes 6 are located towards the inside of the power distribution cabinet.

[0037] The air intake assembly 1 includes a fixed outer cover 11 and an installation assembly 12. The fixed outer cover 11 and the installation assembly 12 are designed for easy disassembly and installation, allowing for convenient disassembly and maintenance of different locations depending on the location to be repaired.

[0038] The fixed outer cover 11 has a U-shaped cross-section and is integrally installed with the mounting frame 4. The mounting frame 4 has a rectangular frame structure, and the middle of the rectangular frame structure of the mounting frame 4 is connected to the U-shaped opening structure of the fixed outer cover 11. A first air vent 111 is provided at a position slightly below the outer side of the fixed outer cover 11, and a through mounting port 112 is also provided on the outer side of the fixed outer cover 11.

[0039] The mounting assembly 12 includes a mounting plate 121, a handle 122, and a filter plate 123. The filter plates 123 are evenly spaced on the inner side of the mounting plate 121, and the handle 122 is fixed on the outer side of the mounting plate 121. The three sets of filter plates 123 are arranged at different heights. The mounting plate 121 and the mounting port 112 are interlocked and fixed with bolts. By disassembling and installing the fixed outer cover 11 and the mounting assembly 12, the mounting assembly 12 can be easily and directly disassembled to clean the filter plates 123 installed on it. The operation is convenient. At the same time, the arrangement of the three sets of filter plates 123 can efficiently filter external impurities.

[0040] The heat dissipation component 2 is a hollow rectangular structure, and its outer side is provided with a through-hole 21 that connects with the perforation on the surface of the power distribution cabinet. An axial flow fan 5 is provided inside the heat dissipation component 2, and a second through-hole 22 is also provided on the inner side of the heat dissipation component 2. The second through-hole 22 is fixed to the air supply component 3 by a pipe clamp.

[0041] The air supply assembly 3 includes a fixed pipe 31, a mounting bracket 32, and a connecting pipe 33. The mounting bracket 32 ​​is integrally installed at the top of the fixed pipe 31, and a mounting bracket 32 ​​is provided below the mounting bracket 32 ​​and fixed to the top of the heat dissipation assembly 2. The connecting pipe 33 has mounting pipes 331 arranged at equal intervals on its inner side. The mounting pipe 331 has a threaded structure on its inner side and is threaded to one side of the air supply pipe 6. The air supply pipe 6 has a cylindrical structure, and ventilation openings are evenly distributed on the outside of its cylindrical structure. Two adjacent air supply pipes 6 are symmetrically arranged about the mounting ribs inside the distribution cabinet. The fixed pipe 31 is set towards the inner wall of the cabinet. With the air supply pipes 6 arranged at equal intervals on its outer wall, the purpose of efficient and uniform heat dissipation of the inside of the distribution cabinet can be achieved.

[0042] Working principle: When using the ventilation and heat dissipation device of this high and low voltage distribution cabinet, the entire device needs to be installed. Take the air intake component 1 and make its external mounting frame 4 engage with the outside of the perforation on the surface of the cabinet. Then, take the external bolts and install the mounting frame 4 to complete the installation of the air intake component 1. After that, take the heat dissipation component 2 and make its external mounting frame 4 engage with the outside of the perforation on the inside of the cabinet. Install the mounting frame 4 with bolts to complete the installation of the heat dissipation component 2. After installation, take the air supply component 3 and make it engage with the second air outlet 22 on the heat dissipation component 2. Then, fix it with pipe clamps. After fixing, take the external air supply pipe 6 and make it threaded to the mounting pipe 331 on the connecting pipe 33. Make the air supply pipe 6 evenly spaced inside the cabinet. Then, the staff can install electronic components on the ribs inside the cabinet.

[0043] After installation, the entire cabinet can be put into operation. When the cabinet needs to dissipate heat, the axial fan 5 needs to be turned on to exhaust air from the inside of the cabinet. During exhaust, the vents on the equally spaced air supply pipes 6 draw the hot air from inside the cabinet into the air supply pipes 6, and then into the connecting pipe 33. Through the connecting pipe 33, the air reaches the fixed pipe 31, and then through the second air outlet 22 on the mounting component 12 into the mounting component 12. Finally, through the through hole 21, the air reaches the perforation on the surface of the cabinet and then into the fixed outer cover 11. After being filtered by the filter plate 123 on the fixed outer cover 11 and the filter plate 123 on the mounting component 12, the air is discharged at the first air outlet 111, thus achieving the purpose of heat dissipation.

[0044] In this application, since the first air vent 111 is configured with a through-hole structure, when external impurities reach the interior of the fixed outer cover 11 through the first air vent 111, they will be filtered by three filter plates 123 in sequence to filter the impurities in layers. This ensures that external impurities will not enter the interior of the cabinet. At the same time, the through-hole structure also ensures that the entire device can dissipate heat continuously and efficiently without clogging.

[0045] When performing routine maintenance on the device, it is only necessary to pull out the mounting component 12 from inside the fixed outer cover 11 for cleaning. The operation is convenient, quick and efficient. The contents not described in detail in this manual are existing technologies known to those skilled in the art.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ventilation and heat dissipation device for a high and low voltage distribution box, comprising: Air intake assembly (1) is installed on the outside of the perforation in the distribution cabinet and is used for ventilation with the outside. Heat dissipation component (2) is located inside the perforation of the power distribution cabinet; Its features are, Also includes; The mounting frame (4) is provided on the outside of the air intake component (1) and the heat dissipation component (2). The mounting frame (4) is used to complete the bolt installation work with the power distribution cabinet. An air supply assembly (3) is located inside the heat dissipation assembly (2). Air supply pipes (6) are provided at equal intervals on the outside of the air supply assembly (3) for air supply. Both the air supply assembly (3) and the air supply pipes (6) are located towards the inside of the distribution cabinet.

2. The ventilation and heat dissipation device for a high and low voltage distribution box according to claim 1, characterized in that: The air intake assembly (1) includes a fixed outer cover (11) and an installation assembly (12), and the fixed outer cover (11) and the installation assembly (12) are designed for disassembly and installation.

3. The ventilation and heat dissipation device for a high and low voltage distribution box according to claim 2, characterized in that: The fixed outer cover (11) has a U-shaped cross-section and is integrally installed with the mounting frame (4). The mounting frame (4) has a rectangular frame structure, and the middle of the rectangular frame structure of the mounting frame (4) is connected to the U-shaped opening structure of the fixed outer cover (11). A first air vent (111) is provided at a position slightly below the outer side of the fixed outer cover (11), and a through mounting opening (112) is also provided on the outer side of the fixed outer cover (11).

4. The ventilation and heat dissipation device for a high and low voltage distribution box according to claim 2, characterized in that: The mounting assembly (12) includes a mounting plate (121), a handle (122), and a filter plate (123). The filter plates (123) are evenly spaced on the inner side of the mounting plate (121), and the handle (122) is fixed on the outer side of the mounting plate (121). The three sets of filter plates (123) are arranged at different heights. The mounting plate (121) and the mounting port (112) are interlocked and fixed with bolts.

5. The ventilation and heat dissipation device for a high and low voltage distribution box according to claim 1, characterized in that: The heat dissipation component (2) is a hollow rectangular structure, and a through-hole (21) is provided on its outer side, which is connected to the perforation on the surface of the power distribution cabinet. An axial flow fan (5) is provided inside the heat dissipation component (2), and a second through-hole (22) is also provided on the inner side of the heat dissipation component (2). The second through-hole (22) is fixed to the air supply component (3) by a pipe clamp.

6. The ventilation and heat dissipation device for a high and low voltage distribution box according to claim 1, characterized in that: The air supply assembly (3) includes a fixed pipe (31), a mounting bracket (32) and a connecting pipe (33). The top end of the fixed pipe (31) is integrally mounted with the mounting bracket (32), and the mounting bracket (32) is fixed to the top of the heat dissipation assembly (2) below the mounting bracket (32). The connecting pipe (33) is provided with mounting pipes (331) at equal intervals on its inner side.

7. A ventilation and heat dissipation device for a high and low voltage distribution box according to claim 6, characterized in that: The inner side of the mounting pipe (331) is provided with a threaded structure, and it is threadedly connected to one side of the air supply pipe (6).

8. The ventilation and heat dissipation device for a high and low voltage distribution box according to claim 1, characterized in that: The air supply pipe (6) is arranged in a cylindrical structure, and the exterior of the cylindrical structure is evenly distributed with ventilation openings. Two adjacent air supply pipes (6) are symmetrically arranged with respect to the mounting ribs inside the distribution cabinet.

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