A high-efficiency heat-dissipation laminated busbar

Abstract

The utility model discloses a kind of high-efficiency heat-dissipating laminated busbar, including busbar body and heat-dissipating assembly;The busbar body is equipped with the heat conduction area of the contact with heating element surface, heat conduction area outside is equipped with heat-dissipating part, cooling flow channel is equipped in heat-dissipating part, heat-dissipating part outside is equipped with the input end and output end connected with cooling flow channel;The heat-dissipating assembly includes the cooling pipe connected with input end and output end, cooling pipe is connected with liquid cooling heat-dissipating module.The utility model is cooled by setting heat-dissipating part with cooling flow channel and liquid cooling heat-dissipating module, and liquid cooling mode is used to replace traditional air cooling or natural heat dissipation;Heat conducted by heat conduction area can be quickly absorbed, and heat is transferred to liquid cooling heat-dissipating module by circulating flow and dissipates, effectively solve the problem of low efficiency, heat accumulation of traditional heat dissipation mode, ensure that laminated busbar and peripheral device temperature is stable in safety range when long time full load work, avoid burnout.

Description

Technical Field

[0001] This utility model relates to the field of capacitor busbar technology, specifically to a high-efficiency heat dissipation stacked busbar. Background Technology

[0002] Laminated busbars, as core components for achieving efficient conductive connections in power electronic equipment, are widely used in high-power devices such as new energy vehicles, energy storage systems, and frequency converters. Their performance directly affects the stability and safety of the entire circuit system. Because laminated busbars need to carry large currents and are often closely connected to heat-generating devices such as capacitors and IGBTs, they generate a significant amount of heat during operation, making heat dissipation capacity a key indicator for evaluating their performance.

[0003] Currently, existing multilayer busbars rely on a single heat dissipation method, primarily air cooling or natural cooling: air cooling uses fans to force airflow to remove heat, but its efficiency is limited due to the low thermal conductivity of air; natural cooling relies entirely on heat conduction and air convection, and is only suitable for low-power applications. When the equipment operates at full load for extended periods, neither of these methods can quickly dissipate the heat generated by the multilayer busbar and surrounding components, causing the busbar temperature to rise continuously and even absorb heat from surrounding components, resulting in heat accumulation.

[0004] This heat dissipation defect directly leads to serious consequences: on the one hand, excessively high temperatures in the laminated busbar itself can cause insulation aging, decreased conductivity, and shortened lifespan; on the other hand, surrounding heat-generating components (such as capacitors and IGBTs) burn out due to the inability to dissipate heat in time, causing equipment failure. Such problems not only increase equipment maintenance and disposal costs but also damage the company's brand reputation due to insufficient product reliability, hindering the performance improvement and safe application of high-power power electronic equipment. Therefore, developing a laminated busbar that can achieve efficient heat dissipation and avoid heat accumulation has become an urgent technical problem to be solved in this field. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-efficiency heat dissipation stacked busbar. By combining liquid cooling and structural optimization, the problem of low heat dissipation efficiency of traditional stacked busbars is effectively solved, which can significantly improve the stability and safety of the equipment.

[0006] The technical solution adopted by this utility model is: a high-efficiency heat dissipation stacked busbar, including a busbar body and a heat dissipation component; the busbar body is provided with a heat-conducting area that contacts the surface of the heat-generating element, a heat dissipation part is provided outside the heat-conducting area, a cooling channel is provided inside the heat dissipation part, and an input end and an output end connected to the cooling channel are provided outside the heat dissipation part; the heat dissipation component includes a cooling pipe connected to the input end and the output end, and the cooling pipe is connected to a liquid cooling heat dissipation module.

[0007] In this technical solution, after capacitors and other heat-generating components are installed on the busbar body, the heat generated by the heat-conducting zone is dissipated through contact with the surfaces of each heat-generating component. At the same time, after the input and output ends of the heat dissipation unit are connected to the cooling pipes, the coolant circulates in each cooling channel through the liquid cooling heat dissipation module, thereby efficiently absorbing the heat dissipated by the heat-conducting zone, achieving rapid cooling, and preventing damage to various electrical components due to excessive heat generation.

[0008] Preferably, both the input and output ends are provided with cooling connectors, and the cooling connectors are provided with switching valves.

[0009] Preferably, the surface of the heat dissipation part is provided with a cooling cover plate that encloses the heat dissipation flow channel.

[0010] Preferably, the liquid cooling heat dissipation module is equipped with a circulation pump.

[0011] Preferably, the heat dissipation section is arranged symmetrically on both sides of the heat conduction zone.

[0012] The beneficial effects of this utility model are as follows: By setting up a heat dissipation part with cooling channels and a liquid cooling heat dissipation module, this utility model adopts liquid cooling to replace the traditional air cooling or natural heat dissipation; it can quickly absorb the heat dissipated by the heat conduction area and transfer the heat to the liquid cooling heat dissipation module for dissipation through circulation, effectively solving the problems of low efficiency and heat accumulation of traditional heat dissipation methods, ensuring that the temperature of the stacked busbar and surrounding devices remains stable within a safe range when working under full load for a long time, and avoiding burnout; it has high practical value. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model 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. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 The three-dimensional stacked busbar with high-efficiency heat dissipation provided in the embodiments of this utility model Figure 1 .

[0015] Figure 2 The three-dimensional stacked busbar with high-efficiency heat dissipation provided in the embodiments of this utility model Figure 2 .

[0016] Reference numerals in the attached drawings: busbar body 100, heat conduction zone 110, heat dissipation part 120, cooling joint 200, cooling cover plate 300, heating element 400. Detailed Implementation

[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0018] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0019] like Figure 1 and Figure 2 As shown in the figure, a specific embodiment of this utility model provides a high-efficiency heat dissipation stacked busbar, including a busbar body 100 and a heat dissipation assembly; the busbar body 100 is provided with a heat-conducting area 110 that contacts the surface of the heat-generating element 400, a heat dissipation part 120 is provided on the outside of the heat-conducting area 110, a cooling channel is provided inside the heat dissipation part 120, and an input end and an output end connected to the cooling channel are provided on the outside of the heat dissipation part 120; the heat dissipation assembly includes a cooling pipe connected to the input end and the output end, and the cooling pipe is connected to a liquid cooling heat dissipation module.

[0020] like Figure 1 and Figure 2 As shown, through the above configuration, the heat-conducting area 110 on the busbar body 100 in this embodiment is located in the middle region of the busbar body 100, for direct surface contact with capacitors, IGBTs, and other heat-generating devices, which can quickly dissipate the heat generated by the heat-generating element 400. Simultaneously, after the input and output ends of the heat dissipation unit 120 are connected to cooling pipes, the coolant circulates within each cooling channel through a liquid cooling module, thereby efficiently absorbing the heat dissipated by the heat-conducting area 110, achieving rapid cooling, and preventing damage to electrical components due to excessive heat generation. In practical applications, the heat dissipation unit 120 is symmetrically arranged along both sides of the heat-conducting area 110; this symmetrical arrangement can improve the heat dissipation effect. Figure 1 As shown, the heat dissipation section 120 is symmetrically arranged on both sides of the heat conduction area 110, making the busbar body 100 have an overall U-shaped structure. While ensuring the heat dissipation area, it greatly reduces the space occupation, making it suitable for scenarios with strict installation space requirements, such as new energy vehicles and energy storage systems. At the same time, the heat conduction area 110 and the heat-generating element 400 adopt a surface contact design, which increases the heat conduction area and further improves the heat dissipation efficiency, making it compatible with heat-generating devices of different specifications (such as capacitors and IGBTs).

[0021] like Figure 1 and Figure 2As shown, this embodiment has cooling connectors 200 at both the input and output ends. Each cooling connector 200 is equipped with a switching valve, allowing for quick connection of cooling pipes. The switching valves control the opening and closing of the liquid flow channels, facilitating routine maintenance and coolant replacement. Furthermore, the surface of the heat dissipation unit 120 is provided with a cooling cover plate 300 that encloses the heat dissipation channels. The cooling cover plate 300 can be opened to facilitate maintenance of the cooling structure. The cooling pipes are made of high-temperature and corrosion-resistant flexible pipes (such as silicone tubing or corrugated metal tubing), with both ends connected to the input and output ends of the heat dissipation unit 120, forming a closed circulation channel.

[0022] This embodiment features a circulating pump within the liquid cooling module, which stably drives the coolant to circulate within the cooling channels, ensuring continuous and efficient heat dissipation. The overall structural design avoids the heat dissipation interruption problem caused by fan failure in traditional air cooling, improving the operational stability of the stacked busbars and the entire equipment, and indirectly reducing brand losses and accountability costs caused by failures.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A high-efficiency heat dissipation laminated busbar, characterized in that; Includes the busbar body (100) and heat dissipation components; The busbar body (100) is provided with a heat-conducting area (110) that is in contact with the heating element (400). A heat dissipation part (120) is provided on the outside of the heat-conducting area (110). A cooling channel is provided inside the heat dissipation part (120). An input end and an output end connected to the cooling channel are provided on the outside of the heat dissipation part (120). The heat dissipation component includes cooling pipes connected to the input and output terminals, and the cooling pipes are connected to a liquid cooling heat dissipation module.

2. The high-efficiency heat dissipation stacked busbar according to claim 1, characterized in that... ； Both the input and output ends are equipped with cooling connectors (200), and the cooling connectors (200) are equipped with switching valves.

3. The high-efficiency heat dissipation stacked busbar according to claim 1, characterized in that; The surface of the heat dissipation part (120) is provided with a cooling cover plate (300) that closes the heat dissipation channel.

4. The high-efficiency heat dissipation stacked busbar according to claim 1, characterized in that... ； The liquid cooling heat dissipation module is equipped with a circulation pump.

5. The high-efficiency heat dissipation stacked busbar according to claim 1, characterized in that... ； The heat dissipation section (120) is symmetrically arranged on both sides of the heat conduction zone (110).

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