A heat dissipation device for a switch product

Abstract

This utility model belongs to the technical field of switch products, specifically relating to a heat dissipation device for switch products. The heat dissipation device comprises: an outer heat sink mounted on the outside of the top cover of the switchgear, and an inner heat sink mounted inside; each outer heat sink has a sealing plate that does not completely cover the top of the outer heat sink, forming an annular space with the top edge of the outer heat sink. By setting the sealing plate, partition, inner partition, and pipe structure on the outer heat sink, the arrangement of the heat sink is optimized, significantly improving heat dissipation efficiency. This design allows for smoother airflow and increased airflow velocity, effectively meeting the increased capacity heat dissipation requirements of large-capacity switches and solving the problem of low heat dissipation efficiency in traditional heat dissipation structures.

Description

Technical Field

[0001] This utility model belongs to the technical field of switch products, and specifically relates to a heat dissipation device for switch products. Background Technology

[0002] Switchgear is a crucial control and protection device in power systems, and its operating efficiency is directly related to its heat dissipation performance. With the continuous development of power systems, the requirements for the current-carrying capacity and operational stability of switchgear are constantly increasing. In switchgear products, heat generation is concentrated in the main circuit; therefore, the efficiency of heat dissipation directly affects the current-carrying capacity of the product during operation.

[0003] Traditional heat dissipation structures typically employ a single heatsink design, relying on natural cooling. While this method is simple in structure, insufficient airflow velocity makes it unsuitable for the increased cooling requirements of high-capacity switches. When it's necessary to improve the current-carrying capacity of a product, traditional heat dissipation structures often require increasing the conductor's cross-section to reduce conductor resistance. This not only leads to larger switch sizes but also increases manufacturing costs and operational complexity.

[0004] Currently, some switchgear uses fans or heat pipes for heat dissipation, but these methods often suffer from high costs and complex structures. Furthermore, while some switchgear employs multi-layered heat dissipation structures, the arrangement of the heat sinks fails to adequately consider airflow characteristics, resulting in limited improvements in heat dissipation efficiency.

[0005] Therefore, in the development of new products, it is necessary to design structures with high heat dissipation efficiency and improve the current carrying capacity of the product. Utility Model Content

[0006] The purpose of this invention is to provide a heat dissipation device for switch products, which solves the problem of insufficient current carrying capacity caused by the low heat dissipation structure in the existing system.

[0007] This utility model is achieved through the following technical solution:

[0008] This utility model discloses a heat dissipation device for a switch product, wherein an external heat sink is installed on the outside of the top cover of the switch device, and an internal heat sink is installed inside.

[0009] Each external heat sink has a cover plate that does not completely cover the top of the external heat sink, forming an annular space with the top edge of the external heat sink.

[0010] Furthermore, the external heat sink is a sloping structure heat sink, and the cross-sectional shape of the sloping structure heat sink is composed of a combination of rectangles and trapezoids, with the trapezoids located above the rectangles;

[0011] A slope sealing plate is covered on the trapezoidal slope of the slope structure heat sink.

[0012] Furthermore, multiple external partitions are set between two adjacent external heat sinks, and the multiple external partitions are arranged at different angles between the heat sinks to form multiple separation channels at different angles.

[0013] Furthermore, with the vertical center line of the outer heat sink as the central reference line, the outer partitions on the left and right sides are symmetrically arranged to form a conical channel in the middle area.

[0014] Furthermore, the inner heat sink is a hollow heat sink, with multiple inner baffles set in the hollow part of the hollow heat sink, forming multiple airflow channels inside the hollow heat sink.

[0015] Furthermore, cooling pipes are laid inside the hollow heat sink, and a power source is installed at one end of the cooling pipes.

[0016] Furthermore, gas pipes are installed at both ends of the external heat sink, and multiple air outlets are installed on the gas pipes. Each air outlet faces the airflow channel formed between the external heat sinks, and a blower is installed at the end or middle of the gas pipe.

[0017] Furthermore, the top cover of the switchgear is prefabricated in a raised shape, which consists of a rectangular section and a trapezoidal section, with the trapezoidal section above the rectangular section.

[0018] Furthermore, the external heat sink is installed on a trapezoidal cross-section, and the mounting surface of the external heat sink is prefabricated as a heat sink with trapezoidal grooves that match the trapezoidal cross-section.

[0019] Furthermore, the external heat sink is installed at an angle on the inclined surface of the trapezoidal cross section.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects:

[0021] This utility model discloses a heat dissipation device for switch products. By setting a sealing plate on the heat sink, a significant airflow velocity is created between the heat sinks, improving heat dissipation efficiency. This design allows for smoother airflow and increased airflow velocity, effectively meeting the increased heat dissipation requirements of high-capacity switches and solving the problem of low heat dissipation efficiency in traditional heat dissipation structures. This utility model increases current capacity by improving heat dissipation efficiency without increasing the size of the central conductor, thus meeting the need for improved performance in switchgear without increasing its size.

[0022] Furthermore, the design of the heat sink adopts a sloping structure. The sloping structure can guide the direction of gas flow, make better use of the heat dissipation area, and improve heat dissipation efficiency.

[0023] Furthermore, partitions are installed between the heat sinks to form airflow channels with a chimney effect.

[0024] Furthermore, the heat sink adopts a hollow heat sink design, with an inner baffle inside the hollow structure to form its own airflow channel. At the same time, coolant pipes can also be installed to improve heat dissipation efficiency. The combination of the hollow structure and the sloping structure design can better utilize the heat dissipation area and improve heat dissipation efficiency.

[0025] Furthermore, by setting gas pipes at both ends of the heat sink and blowing air through a blower, a high-pressure gas flow is formed, which effectively promotes the gas flow between the heat sinks, enhances the heat dissipation effect, and solves the problem of insufficient airflow between heat sinks in the prior art. Attached Figure Description

[0026] Figure 1 These are the three views of the original heat dissipation top cover; Figure a is the front view, Figure b is the top view, and Figure c is the side view.

[0027] Figure 2 Figure 1 is a schematic diagram of the external heat sink sealing plate of Embodiment 1; Figure a is the front view, Figure b is the top view, and Figure c is the side view.

[0028] Figure 3 This is a schematic diagram of the sealing plate in Example 2;

[0029] Figure 4 This is a schematic diagram of the structure with an external partition plate added between the external heat sinks in Example 3;

[0030] Figure 5 This is a schematic diagram of the external heat sink in Example 4;

[0031] Figure 6 A schematic diagram of an external heat sink with cooling pipes;

[0032] Figure 7 This is a schematic diagram of the structure after adding gas pipes to both ends of the external heat sink in Example 5;

[0033] Figure 8 Figure 6 shows the result after changing the shape of the top cover of the switchgear in Example 6; Figure a is a schematic diagram of the installation structure of the large heat sink; Figure b is a schematic diagram of the installation structure of the small heat sink.

[0034] 1. Switchgear top cover; 2. External heat sink; 3. Internal heat sink; 4. Gas pipeline;

[0035] 21. Sealing plate; 22. Wind speed measurement point;

[0036] 24. Sloping heat sink; 241. Sloping sealing plate; 242. Outer partition; 25. Hollow heat sink; 251. Inner partition; 252. Cooling pipe;

[0037] 41. Vent. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it; that is, the described embodiments are only a part of, and not all, of the embodiments of this utility model.

[0039] The components described and illustrated in the accompanying drawings and embodiments of this utility model can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of this utility model provided in the following drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate one selected embodiment of the utility model. All other embodiments obtained by those skilled in the art based on the accompanying drawings and embodiments of this utility model without inventive effort are within the protection scope of this utility model.

[0040] Traditional heat dissipation structures such as Figure 1 As shown in Figures a-c, the top cover 1 of the switchgear is equipped with multiple external heat sinks 2 and internal heat sinks 3. The external heat sinks 2 are installed above the top cover 1 of the switchgear. The internal heat sinks 3 are set up by increasing the heat absorption area by having enough heat sinks, so that more heat-carrying gas can come into contact with the internal heat sinks 3, absorb the heat onto the top cover 1 of the switchgear, and then dissipate the heat into the atmosphere through the external heat sinks 2.

[0041] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0042] Example 1

[0043] This utility model provides a heat dissipation device for a switch product, including a top cover 1, an outer heat sink 2, and an inner heat sink 3.

[0044] like Figure 2 As shown in Figures a-c, the top cover 1 of the switchgear has a rectangular structure and is provided with multiple external heat sinks 2, which are evenly distributed along the circumference of the top cover. Each external heat sink 2 has a sealing plate 21 that does not completely cover the top of the external heat sink 2, forming an annular space with the top edge of the external heat sink 2.

[0045] After such coverage, in the experiment, multiple wind speed measurement points 22 were set up on the left and right sides of the outer heat sink 2. It was found that a certain wind speed existed. After 4 hours of continuous flow, the central conductor of the switchgear cooled down by about 3K, which verified that this setting has the effect of accelerating the gas flow rate and improving the heat dissipation efficiency.

[0046] Example 2

[0047] Based on Example 1, to improve the smoothness of airflow, such as Figure 3As shown, the external heat sink 2 is designed as a sloping structure heat sink 24, and a sloping sealing plate 241 is covered on the sloping surface.

[0048] The external heat sink 2 adopts a sloping structure design with an inclination angle of 20°-30° to guide airflow in a predetermined direction.

[0049] Example 3

[0050] Based on Example 1 or Example 2, further optimizations are made, such as... Figure 4 As shown, multiple external baffles 242 are arranged between two adjacent external heat sinks 2 at different angles to form multiple separation channels at different angles. This allows gas to flow from the air inlet along different separation channels to the air outlet. By utilizing the chimney effect, the airflow speed is increased, more heat is carried away, and thus the heat dissipation efficiency is improved.

[0051] The outer partition 242 extends along the length of the outer heat sink 2 and is used to separate airflow channels in different areas.

[0052] The outer partitions 242 on the left and right sides are symmetrically arranged to form a conical channel in the middle area.

[0053] Example 4

[0054] Based on Example 3, in order to further improve heat dissipation efficiency, such as Figure 5 As shown, the inner heat sink 3 is designed as a hollow heat sink 25. Multiple inner baffles 251 are set in the hollow part of the hollow heat sink 25, so that the gas can flow rapidly inside the hollow heat sink 25 by relying on the chimney effect formed by the inner baffles 251, making full use of the heat dissipation area and improving the heat dissipation efficiency.

[0055] Furthermore, cooling pipes 252 can be laid inside the hollow heat sink 25, and a power source can be installed at one end of the cooling pipes 252, such as... Figure 6 As shown, this allows the coolant to flow rapidly within the cooling pipe 252, efficiently removing heat from the hollow heat sink 25.

[0056] Example 5

[0057] Based on Example 1, to further improve heat dissipation efficiency, gas pipes 4 are provided at both ends of the outer heat sink 2, and multiple air outlets 41 are provided on the gas pipes 4. Each air outlet 41 faces the airflow channel formed between the outer heat sinks 2. A blower is provided at the end or middle of the gas pipe 4, such as... Figure 7 As shown, high-pressure gas is formed inside the gas pipe 4, and then the gas is quickly blown out through the vent 41, which in turn drives the air to flow rapidly between the outer heat sinks 2, thereby improving the heat dissipation efficiency. The vent 41 covers the airflow area of ​​the partition plate between the outer heat sinks 2.

[0058] Example 6

[0059] To further increase the heat absorption and dissipation area, such as Figure 8 As shown in Figure a, the top cover 1 of the switchgear can be designed as a convex shape. Specifically, the top cover 1 of the switchgear consists of a rectangular section and a trapezoidal section. The rectangular section is the same as the traditional structure, but a trapezoidal section is added on top of the rectangular section.

[0060] Among them, the mounting surface of the external heat sink 2 can be prefabricated as a trapezoidal groove that matches the trapezoidal cross section, which is called a large heat sink. This design is suitable for scenarios with higher heat dissipation requirements.

[0061] It can also be set as needed, such as Figure 8 The small heat sink shown in Figure b is installed at an angle on the inclined surface of the trapezoidal cross-section. In this case, an additional triangular face will appear on the mounting surface of the small heat sink, which is located on the plane of the trapezoidal cross-section.

[0062] The specific structural optimization design of the external heat sink 2 can adopt any one of the embodiments 1-5.

[0063] The heat dissipation device of this utility model has a reasonable structural design, which makes it easy to flexibly arrange and adjust the heat sink. The number and size of the heat sink can be flexibly adjusted according to actual needs to meet the heat dissipation requirements of different specifications and models of switching equipment.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A heat dissipation device for a switch product, characterized in that, An external heat sink (2) is installed on the outside of the top cover (1) of the switchgear, and an internal heat sink (3) is installed inside. Each external heat sink (2) has a sealing plate (21) that does not completely cover the top of the external heat sink (2), forming an annular space with the top edge of the external heat sink (2); The external heat sink (2) is a slope structure heat sink (24), and the cross-sectional shape of the slope structure heat sink (24) is composed of a rectangle and a trapezoid, with the trapezoid located above the rectangle; A slope sealing plate (241) is covered on the trapezoidal slope of the slope structure heat sink (24). The inner heat sink (3) is a hollow heat sink (25). Multiple inner partitions (251) are provided in the hollow part of the hollow heat sink (25), forming multiple airflow channels inside the hollow heat sink (25).

2. The heat dissipation device for a switch product according to claim 1, characterized in that, Multiple external partitions (242) are set between two adjacent external heat sinks (2). The multiple external partitions (242) are arranged at different angles between the heat sinks to form multiple separation channels at different angles.

3. The heat dissipation device for a switch product according to claim 2, characterized in that, With the vertical center line of the external heat sink (2) as the center reference line, the external partitions (242) on the left and right sides are symmetrically arranged to form a conical channel in the middle area.

4. The heat dissipation device for a switch product according to claim 1, characterized in that, A cooling pipe (252) is laid inside the hollow heat sink (25), and a power source is set at one end of the cooling pipe (252).

5. The heat dissipation device for a switch product according to claim 1, characterized in that, Gas pipes (4) are provided at both ends of the external heat sink (2), and multiple air outlets (41) are provided on the gas pipes (4). Each air outlet (41) faces the airflow channel formed between the external heat sinks (2), and a blower is provided at the end or middle of the gas pipes (4).

6. A heat dissipation device for a switch product according to any one of claims 1-5, characterized in that, The top cover of the switchgear (1) is prefabricated in a raised shape. The raised shape consists of a rectangular section and a trapezoidal section, with the trapezoidal section above the rectangular section.

7. A heat dissipation device for a switch product according to claim 6, characterized in that, The external heat sink (2) is installed on the trapezoidal cross section. The mounting surface of the external heat sink (2) is prefabricated as a heat sink with trapezoidal grooves that match the trapezoidal cross section.

8. A heat dissipation device for a switch product according to claim 6, characterized in that, The external heat sink (2) is installed at an angle on the inclined surface of the trapezoidal section.

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