Copper bar structure with self-radiating fins
By setting sockets and spacing areas on the copper busbar, and coating the copper busbar with a thermally conductive graphite layer, combined with wavy or serrated fins and inclined spacers, the problem of poor heat dissipation in confined spaces is solved, achieving efficient heat dissipation and stable power transmission.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 武汉弘巨通电子科技有限公司
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-14
AI Technical Summary
In existing technologies, heat dissipation fins are generally installed on the outside of the copper busbar, which increases the width of the copper busbar. In a confined space, the airflow space is small, resulting in poor heat dissipation.
A copper busbar structure with self-heating fins is designed. By setting sockets and spacing areas on the copper busbar, and coating the copper busbar with a thermally conductive graphite layer between the copper busbar and the heat dissipation component, combined with wavy or serrated fins and inclined spacers, an orderly airflow channel is formed, which enhances heat transfer and heat dissipation efficiency.
Without increasing the outer width of the copper busbar, heat dissipation efficiency is significantly improved, installation space requirements are reduced, and the stable operation and efficient transmission of the power system are ensured.
Smart Images
Figure CN224123176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat dissipation technology, specifically a copper busbar structure with self-heating fins. Background Technology
[0002] According to the law of resistance, the resistance of a conductor is related to temperature; generally, the resistance of metallic conductors increases with increasing temperature. As a conductor used for power transmission, the resistance of copper busbars increases with temperature, leading to greater energy loss during transmission. Passive cooling to lower the temperature of the copper busbars can maintain their lower resistance, reduce energy loss, and improve power transmission efficiency.
[0003] Excessive temperature can affect the current-carrying capacity of the copper busbar. Sustained high temperatures may prevent the copper busbar from handling its designed current, easily leading to circuit failure. Passive cooling can keep the copper busbar temperature within a reasonable range, ensuring its stable current-carrying capacity and guaranteeing the normal operation of the power system.
[0004] Therefore, when in use, copper busbars are equipped with heat dissipation fins to increase the surface area and achieve passive heat dissipation. However, the heat dissipation fins are generally installed on the outside of the copper busbar, on one or both sides of the copper busbar. However, this heat dissipation method increases the width of the outer side of the copper busbar. When installed in a narrow space, the air circulation space is small, and the heat dissipation effect is not good enough. Based on this, this application provides a copper busbar structure with self-heating fins. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a copper busbar structure with self-heating fins, which solves the problem that in existing technologies, heat dissipation fins are generally installed on the outside of the copper busbar, increasing the width of the outer side of the copper busbar. When installed in a confined space, the heat dissipation effect is not good due to the limited air circulation space.
[0006] The copper busbar structure with self-heating fins of this utility model includes:
[0007] A copper busbar, the copper busbar including a body, the body having a socket and a spacing area;
[0008] A heat dissipation component is fixedly connected to one side of the main body. The heat dissipation component includes a heat insulation component covering the connection between the heat dissipation component and the main body, and a ventilation gap.
[0009] The interval area corresponds one-to-one with the socket, and the socket completely penetrates the body to the other side of the interval area.
[0010] As a further improvement of this utility model, the heat dissipation component is fixedly connected to the copper busbar, and a uniformly coated thermally conductive graphite layer is provided between the two.
[0011] As a further improvement of this utility model, the heat dissipation component also includes one or more fins arranged at intervals along the length of the copper busbar body, and a through groove is provided between the fins and the heat insulation component.
[0012] As a further improvement of this utility model, the cross-sectional shape of the through groove is rectangular or trapezoidal, and it extends longitudinally through the body to the other side to guide air circulation.
[0013] As a further improvement of this utility model, the fins have a wavy or serrated structure, and their surface is provided with densely distributed micro-protrusions or flow-guiding grooves.
[0014] As a further improvement of this utility model, the two sides of the heat insulation component are fixed to the contact interface between the two sides of the inner wall of the through groove.
[0015] As a further improvement of this utility model, one or more partition plates are arranged horizontally on the inner side of the ventilation gap, and a channel is formed between every two partition plates to guide air circulation, and the partition plates are inclined at a preset angle.
[0016] As a further improvement of this utility model, the interval area is solid, which is used to strengthen the body.
[0017] As a further improvement of this utility model, the socket is a closed curve, its inner wall is provided with a conductive plating layer, and its edge is provided with chamfers for fitting bolts or connectors.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] This invention greatly enhances the heat transfer efficiency between the copper busbar and the heat dissipation component by uniformly coating a thermally conductive graphite layer between them, ensuring that heat can be quickly transferred from the copper busbar to the heat dissipation component, laying the foundation for efficient heat dissipation; the wave-shaped and sawtooth-shaped fin design, as well as the densely distributed micro-protrusions or flow-guiding grooves on the fin surface, significantly increase the contact area between the air and the fins, while disturbing the air flow to form turbulence, effectively enhancing the heat dissipation effect;
[0020] The insertion holes and spacing areas of the copper busbar body, the through slots of the heat dissipation components, and the inclined partition plates in the ventilation gaps together form an orderly air circulation channel, promoting air convection inside and around the copper busbar and carrying away heat in a timely manner.
[0021] The insulation effectively prevents heat from being transferred from the copper busbar to other parts of the heat dissipation component, allowing the heat dissipation component to focus more on dissipating heat to the surrounding environment, further improving heat dissipation efficiency. Unlike traditional heat dissipation fins, it does not require a significant increase in the outer width of the copper busbar, reducing the need for installation space. It is especially suitable for installation in confined spaces, making it possible to miniaturize and compact electrical equipment. Attached Figure Description
[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0023] Figure 1 This is a three-dimensional structural diagram of the copper busbar and heat dissipation component combination of this utility model;
[0024] Figure 2 This is a top view of the combined copper busbar and heat dissipation component of this utility model;
[0025] Figure 3 This is a front view structural diagram of the copper busbar and heat dissipation component combination of this utility model;
[0026] Figure 4 This utility model Figure 3 Schematic diagram of the cross-sectional structure of AA.
[0027] In the diagram: 1. Copper busbar; 2. Heat dissipation component;
[0028] 11. Body; 12. Socket; 13. Spacing area;
[0029] 21. Ventilation gap; 22. Thermal insulation; 23. Through groove; 24. Fin. Detailed Implementation
[0030] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.
[0031] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0032] Please see Figure 1-4 According to the law of resistance, the resistance of a conductor is related to temperature; generally, the resistance of metallic conductors increases with increasing temperature. As a conductor for power transmission, copper busbar 1 experiences increased resistance with rising temperature, leading to increased energy loss during transmission. Passive cooling to lower the temperature of copper busbar 1 can maintain its lower resistance, reduce energy loss, and improve power transmission efficiency.
[0033] Excessive temperature can affect the current-carrying capacity of the copper busbar. Sustained high temperatures may prevent the copper busbar 1 from handling its designed current, potentially leading to circuit failure. Passive cooling can maintain the temperature of the copper busbar 1 within a reasonable range, ensuring its stable current-carrying capacity and guaranteeing the normal operation of the power system.
[0034] Therefore, in use, the copper busbar 1 will have heat dissipation fins 24 to increase the surface area and achieve passive heat dissipation. However, the heat dissipation fins 24 are generally installed on the outside of the copper busbar 1, and on one or both sides of the copper busbar 1. However, this heat dissipation method increases the outer width of the copper busbar 1 during installation. When installed in a narrow space, the air circulation space is small, and the heat dissipation effect is not good enough. Based on this, this application provides a copper busbar 1 structure with heat dissipation fins 24, including:
[0035] Copper busbar 1, the copper busbar 1 includes a body 11, the body 11 is provided with a socket 12 and a spacer area 13;
[0036] The heat dissipation component 2 is fixedly connected to one side of the main body 11. The heat dissipation component 2 includes a heat insulation component 22 covering the connection between the heat dissipation component 2 and the main body 11, and a ventilation gap 21.
[0037] The interval region 13 corresponds one-to-one with the socket 12, and the socket 12 completely penetrates the body 11 to the other side of the interval region 13.
[0038] The body 11 of the copper busbar 1 is responsible for power transmission and is made of copper to ensure good conductivity.
[0039] Multiple sockets 12 are evenly opened on the body 11. The shape of the sockets 12 can be designed as round, square or oval, etc. The sockets 12 completely penetrate the body 11 to the other side of the interval area 13. This design is conducive to the formation of air convection inside the copper busbar 1, which carries away heat.
[0040] The partition area 13 corresponds one-to-one with the socket 12. It serves to separate the sockets 12 and also provides a channel for airflow.
[0041] The heat dissipation component 2 is fixedly connected to one side of the main body 11 and mainly consists of heat dissipation fins 24. The heat dissipation fins 24 are made of aluminum alloy because aluminum alloy has good thermal conductivity and light weight. The shape of the heat dissipation fins 24 can be designed as plates, needles, or columns to increase the heat dissipation area and airflow space.
[0042] A heat insulation component 22 is wrapped at the connection between the heat dissipation component 2 and the main body 11. The heat insulation component 22 is made of ceramic fiber material, which can effectively prevent the heat from accumulating on the copper busbar 1 main body 11, thereby improving the heat dissipation efficiency and ensuring that it has good heat insulation performance.
[0043] The design of the insertion holes 12 and the spacing area 13 on the copper busbar 1 body 11 allows air to form convection inside the copper busbar 1, effectively carrying away heat and improving heat dissipation efficiency.
[0044] The heat dissipation fins 24 of the heat dissipation component 2 increase the heat dissipation area and further enhance the heat dissipation capacity, enabling the heat dissipation component 2 to more effectively dissipate heat into the surrounding environment.
[0045] This structure does not require a significant increase in the outer width of the copper busbar 1 as in traditional heat sink fins 24, reducing the need for installation space and making it more suitable for installation in confined spaces.
[0046] By effectively reducing the temperature of copper busbar 1, a low resistance value is maintained, which reduces energy loss during transmission and improves power transmission efficiency.
[0047] Stable temperature control ensures that copper busbar 1 has a stable current carrying capacity, avoids circuit failures caused by excessive temperature, and guarantees the normal operation of the power system.
[0048] The heat dissipation component 2 is fixedly connected to the copper busbar 1, and a uniformly coated thermally conductive graphite layer is provided between the two.
[0049] The heat dissipation assembly 2 also includes one or more fins 24 arranged at intervals along the length of the copper busbar 1 body 11, and a through groove 23 is provided between the fins 24 and the heat insulation component 22.
[0050] The cross-sectional shape of the through groove 23 is rectangular or trapezoidal, and it extends longitudinally through the body 11 to the other side to guide airflow.
[0051] The fin 24 has a wavy or serrated structure, and its surface is provided with densely distributed micro-protrusions or flow-guiding grooves.
[0052] The two sides of the heat insulation component 22 are fixed to the contact interface with the two sides of the inner wall of the through groove 23.
[0053] One or more partitions are arranged horizontally on the inner side of the ventilation gap 21, forming a channel between every two partitions to guide air circulation, and the partitions are inclined at a preset angle.
[0054] The interval region 13 is solid and is used to strengthen the body 11.
[0055] The socket 12 is a closed curve with a conductive plating on its inner wall and chamfered edges for fitting bolts or connectors.
[0056] When the heat dissipation component 2 is fixedly connected to the copper busbar 1, a thermally conductive graphite layer is uniformly coated between them to better facilitate the transfer of heat from the copper busbar 1 to the heat dissipation component 2.
[0057] The heat dissipation component 2 and the copper busbar 1 can be fixed by snap-fit, ensuring a stable connection without affecting the heat conduction performance.
[0058] Multiple fins 24 are arranged at intervals along the length of the copper busbar 1 body 11. The fins 24 are made of aluminum alloy, and their wavy or serrated structure can increase the contact area and contact time between air and fins 24.
[0059] The micro-protrusions or flow-guiding grooves on the surface of fin 24 can be manufactured by die stamping or machining. The microstructure can disrupt airflow, enhance air turbulence, and improve heat dissipation efficiency.
[0060] The cross-sectional shape of the through groove 23 is rectangular or trapezoidal. The through groove 23 extends longitudinally through the body 11 to the other side. During the manufacturing process of the copper busbar 1, it can be formed by milling or stamping.
[0061] The heat insulation component 22 is made of ceramic fiber material. Its two sides are fixed to the inner wall of the through groove 23 with high-temperature resistant adhesive. Before applying the adhesive, the contact interface is polished and cleaned to ensure the bonding effect of the adhesive. After the adhesive cures, it can effectively prevent the heat from accumulating from the copper busbar 1. At the same time, the use of the heat insulation component 22 enhances the structural strength of the through groove 23 and ensures the stability of the structure.
[0062] A partition plate is horizontally installed inside the ventilation gap 21. The partition plate is made of thin metal such as copper alloy plate and is inclined at a preset angle, between 30° and 60°. This inclined design can guide the air to flow in a specific direction, forming an orderly air channel and improving air circulation efficiency.
[0063] The spacer area 13 is solid and is manufactured using a one-piece molding process during the production of the copper busbar 1. The solid spacer area 13 can effectively enhance the strength of the main body 11, enabling it to withstand certain external forces and mechanical vibrations.
[0064] The socket 12 is a closed curve, such as a circular socket 12. Its diameter is determined according to actual usage requirements. The conductive plating layer on the inner wall of the socket 12 can be silver-plated to reduce contact resistance. The chamfering of the edge of the socket 12 can be achieved by a chamfering process with a chamfering angle of 45° to facilitate the insertion of bolts or connectors.
[0065] The addition of a thermally conductive graphite layer enhances the thermal conductivity between the copper busbar 1 and the heat dissipation component 2, enabling heat to be quickly transferred from the copper busbar 1 to the heat dissipation component 2.
[0066] The wavy or serrated fins 24, along with their micro-protrusions and flow-guiding grooves, increase the contact area and turbulence effect between the air and the fins 24. The through slots 23 and the partition plates guide the orderly flow of air, which together improves the heat dissipation efficiency.
[0067] The fixing of the heat insulation component 22 and the design of the solid interval area 13 not only ensure the heat insulation effect, but also strengthen the structural strength of the copper busbar 1 body 11, making the entire copper busbar 1 structure more stable and reliable.
[0068] The conductive plating on the inner wall of socket 12 reduces contact resistance, improves the stability of electrical connection, and facilitates efficient power transmission.
[0069] The chamfered edge design of the socket 12 facilitates the insertion of bolts or connectors, improving the versatility and ease of installation of the copper busbar 1 in different electrical systems.
[0070] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A copper busbar structure with self-heating fins, characterized in that, include: A copper busbar (1) includes a body (11) on which a socket (12) and a spacer area (13) are provided. The heat dissipation component (2) is fixedly connected to one side of the body (11). The heat dissipation component (2) includes a heat insulation component (22) covering the connection between the heat dissipation component (2) and the body (11), and a ventilation gap (21). The interval region (13) corresponds one-to-one with the socket (12), and the socket (12) completely penetrates the body (11) to the other side of the interval region (13).
2. The copper busbar structure with self-heating fins according to claim 1, characterized in that: The heat dissipation component (2) is fixedly connected to the copper busbar (1), and a uniformly coated thermally conductive graphite layer is provided between the two.
3. The copper busbar structure with self-heating fins according to claim 1, characterized in that: The heat dissipation assembly (2) also includes one or more fins (24) arranged at intervals along the length of the copper busbar (1) body (11), and a through groove (23) is provided between the fins (24) and the heat insulation member (22).
4. A copper busbar structure with self-heating fins according to claim 3, characterized in that: The cross-sectional shape of the through groove (23) is rectangular or trapezoidal, and it extends longitudinally through the body (11) to the other side to guide air circulation.
5. A copper busbar structure with self-heating fins according to claim 3, characterized in that: The fin (24) has a wavy or serrated structure, and its surface is provided with densely distributed micro-protrusions or flow-guiding grooves.
6. A copper busbar structure with self-heating fins according to claim 1, characterized in that: The two sides of the heat insulation component (22) are fixed to the contact interface between the two sides of the inner wall of the through groove (23).
7. A copper busbar structure with self-heating fins according to claim 1, characterized in that: One or more partition plates are arranged laterally on the inner side of the ventilation gap (21), and a channel is formed between every two partition plates to guide air circulation. The partition plates are inclined at a preset angle.
8. A copper busbar structure with self-heating fins according to claim 1, characterized in that: The interval region (13) is solid and is used to strengthen the body (11).
9. A copper busbar structure with self-heating fins according to claim 1, characterized in that: The socket (12) is a closed curve with a conductive plating layer on its inner wall and chamfered edges for fitting bolts or connectors.