Bus duct connection structure
By designing the inner and outer shells and combining finned heat sinks, ceramic heat sinks, and fans, the heat dissipation and vibration reduction issues at the busbar connection points are resolved, thereby improving the stability and safety of the busbar connection points.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI BAITAI ELECTRIC CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-05
AI Technical Summary
The existing busbar connection structure cannot effectively assist in heat dissipation during use, resulting in heat accumulation at the connection points and increasing safety hazards.
It adopts an inner shell and outer shell structure. The inner shell has embedded finned heat sinks and ceramic heat sinks. Heat is conducted to the finned heat sink through thermally conductive silicone pads, and a fan is used to assist in heat dissipation. At the same time, a spring and damping rod structure is used for shock absorption.
Effective heat dissipation at the busbar connection point is achieved, overheating is avoided, the shock absorption effect of the device is enhanced, and the stability and safety of the connection are improved.
Smart Images

Figure CN224329185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of busbar technology, specifically a busbar connection structure. Background Technology
[0002] Busbar trunking uses copper or aluminum busbars as conductors and relies on air or insulating materials for insulation. It is mainly used in important power transmission and transformation sites, such as the connection between transformers, generators and switchgear in substations, the main power supply lines in high-rise buildings, or for the transmission of large currents. It can also be used for trunk branching power transmission, with multiple feeder points set in the line for direct power intake. Connectors are required when connecting busbar trunking.
[0003] Chinese patent publication number "CN214337467U" discloses "a busbar trunking connection structure, including a busbar trunking body and a circuit connection component. A conductive plate is provided on the busbar trunking body. Two busbar trunking bodies are fixedly spliced together by a fixing component. The fixing component includes a sliding groove formed on the busbar trunking body. A snap-fit groove communicating with the sliding groove is formed on the busbar trunking body. A fixing sleeve is slidably sleeved on the busbar trunking body. A slider is fixedly installed on the inner wall of the fixing sleeve. The outer side of the slider is slidably connected to the inner wall of the sliding groove." This patent can ensure full contact between the metal plate and the conductive plate, guaranteeing the stability of current conduction and avoiding localized heating due to poor contact. The fixing sleeve can be sleeved on two busbar trunking bodies to seal the connection point. The fixing sleeve position is easy to lock, facilitating the maintenance of the busbar trunking connection point. However, the above patent does not assist in heat dissipation, making it easy for large amounts of heat to accumulate at the connection point of the busbar trunking, thereby increasing safety hazards. Therefore, we propose a busbar trunking connection structure. Utility Model Content
[0004] The purpose of this utility model is to provide a busbar trunking connection structure to solve the problem mentioned in the background art that the above-mentioned patent cannot assist in heat dissipation, causing the connection of the busbar trunking to easily accumulate a large amount of heat, thereby increasing the safety hazard.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a busbar trunking connection structure, comprising an inner shell and an outer shell, wherein the outer shell is displaced from the outer side wall of the inner shell, a frame is fixedly connected to the top and bottom of the inner shell, a finned heat sink is embedded in the top and bottom of the inner cavity of the frame, a thermally conductive silicone sheet is fixedly connected to the inner side wall of the finned heat sink, a fan is fixedly connected between the inner side walls of the frame, and a dustproof mesh is fixedly connected to the top and bottom of the frame.
[0006] As a further description of the above technical solution:
[0007] An mounting plate is screwed between the left and right sidewalls of the inner cavity of the inner shell. A ceramic heat sink is screwed between the inner sidewalls of the mounting plate. The top and bottom of the ceramic heat sink are in contact with the thermally conductive silicone sheet. A conductive plate is fixedly connected to the inner sidewall of the ceramic heat sink.
[0008] As a further description of the above technical solution:
[0009] The inner cavity of the outer shell is fixedly connected to the upper and lower sides of the front and rear side walls, and the ends of the first springs are fixedly connected to the upper and lower sides of the front and rear side walls of the inner shell.
[0010] As a further description of the above technical solution:
[0011] Damping rods are fixedly connected to the upper and lower sides of the front and rear side walls of the inner cavity of the outer shell, and the damping rods are located in the inner cavity of the first spring. The ends of the damping rods are fixedly connected to the upper and lower sides of the front and rear side walls of the inner shell.
[0012] As a further description of the above technical solution:
[0013] A first connecting plate is fixedly connected to the middle of the front and rear side walls of the inner cavity of the outer shell, and a connecting rod is rotatably connected to the inner side wall of the first connecting plate.
[0014] As a further description of the above technical solution:
[0015] The end of the linkage is fixedly connected to a second connecting plate, which is fixedly connected to the middle of the front and rear side walls of the inner shell.
[0016] As a further description of the above technical solution:
[0017] Connecting blocks are rotatably connected to the front and rear sides of the outer side wall of the linkage, and a second spring is fixedly connected between the inner side walls of the connecting blocks.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. This busbar connection structure conducts heat to the thermally conductive silicone pad through a ceramic heat sink, and then the thermally conductive silicone pad directs the heat to the finned heat sink. The heat is then dissipated into the frame by the finned heat sink, preventing heat from accumulating at the busbar connection. Finally, by activating the fan, the heat dissipated by the finned heat sink is blown out of the frame, further improving the auxiliary heat dissipation effect. This allows the device to have an auxiliary heat dissipation function, preventing overheating at the busbar connection.
[0020] 2. In this busbar connection structure, when the outer casing swings or vibrates, the first spring, in conjunction with the damping rod, provides initial shock absorption. Furthermore, the swinging or vibration of the outer casing causes the first connecting plate to move, which in turn causes the connecting rod to bend. The bending of the connecting rod compresses the second spring, providing secondary shock absorption and further enhancing the overall damping effect. This results in a stronger shock absorption effect, ensuring that the internal connection parts are unaffected by swinging or vibration, and improving the overall connection performance. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of a busbar trunking connection structure proposed in this utility model.
[0022] Figure 2 This is a schematic diagram of the main sectional view of a busbar connection structure proposed in this utility model;
[0023] Figure 3 This is a left-side sectional view of a busbar connection structure proposed in this utility model.
[0024] Figure 4 This is a schematic diagram of the mounting plate structure of a busbar trunking connection structure proposed in this utility model;
[0025] Figure 5 This is a schematic diagram of a ceramic heat sink structure for a busbar connection structure proposed in this utility model.
[0026] In the diagram: 100, inner shell; 110, frame; 120, finned heat sink; 130, thermally conductive silicone pad; 140, fan; 150, dust filter; 160, mounting plate; 170, ceramic heat sink; 180, conductive plate; 200, outer shell; 210, first spring; 220, damping rod; 230, first connecting plate; 240, linkage rod; 250, second connecting plate; 260, connecting block; 270, second spring. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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 this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 this utility model based on the specific circumstances.
[0030] This utility model provides a busbar trunking connection structure that has an auxiliary heat dissipation function, preventing overheating at the busbar trunking connection point, and also has a strong shock absorption effect, ensuring that the internal connection parts are not affected by swaying or vibration, thus improving the connection effect of the device. Please refer to [link / reference]. Figure 1-5 , including inner shell 100 and outer shell 200;
[0031] Please refer to it again. Figure 1-5A frame 110 is fixedly connected to the top and bottom of the inner shell 100. A finned heat sink 120 is embedded in the top and bottom of the inner cavity of the frame 110. A thermally conductive silicone pad 130 is fixedly connected to the inner sidewall of the finned heat sink 120. A fan 140 is fixedly connected between the inner sidewalls of the frame 110. A dust filter 150 is fixedly connected to the top and bottom of the frame 110. A mounting plate 160 is screwed between the left and right sidewalls of the inner cavity of the inner shell 100. A ceramic heat sink 170 is screwed between the inner sidewalls of the mounting plate 160. The top and bottom of the ceramic heat sink 170 are connected to the thermally conductive silicone pad 130. The inner wall of the ceramic heat sink 170 is fixedly connected to a conductive plate 180. The ceramic heat sink 170 conducts heat to the thermally conductive silicone pad 130, and then the thermally conductive silicone pad 130 conducts heat to the finned heat sink 120. The heat is then conducted to the finned heat sink 120 and then dissipated into the frame 110 through the finned heat sink 120, thus preventing heat from accumulating at the busbar connection. Finally, by starting the fan 140, the fan 140 blows the heat dissipated by the finned heat sink 120 out of the frame 110, thereby further improving the auxiliary heat dissipation effect.
[0032] In summary, this enables the device to have an auxiliary heat dissipation function, preventing overheating at the busbar connections.
[0033] Please see Figure 1-3 The outer shell 200 displaces the outer wall of the inner shell 100. A first spring 210 is fixedly connected to the upper and lower sides of the front and rear side walls of the inner cavity of the outer shell 200. The ends of the first spring 210 are fixedly connected to the upper and lower sides of the front and rear side walls of the inner shell 100. A damping rod 220 is fixedly connected to the upper and lower sides of the front and rear side walls of the inner cavity of the outer shell 200, and the damping rod 220 is located inside the first spring 210. The ends of the damping rod 220 are fixedly connected to the upper and lower sides of the front and rear side walls of the inner shell 100. A first connecting plate 230 is fixedly connected at the middle of the front and rear side walls of the inner cavity of the outer shell 200. A connecting rod 240 is rotatably connected to the inner wall of the first connecting plate 230. A second connecting plate 240 is fixedly connected to the end of the connecting rod 240. 50. The second connecting plate 250 is fixedly connected to the middle of the front and rear side walls of the inner shell 100. The connecting rod 240 is rotatably connected to the front and rear sides of the outer side wall. The second spring 270 is fixedly connected between the inner side walls of the connecting blocks 260. When the outer shell 200 swings or vibrates, the first spring 210 and the damping rod 220 provide initial shock absorption. When the outer shell 200 swings or vibrates, it will drive the first connecting plate 230 to move, causing the first connecting plate 230 to drive the connecting rod 240 to bend. When the connecting rod 240 bends, it compresses the second spring 270, causing the second spring 270 to provide secondary buffering, thereby further achieving the buffering effect.
[0034] In summary, this gives the device a strong shock absorption effect, ensuring that the internal connecting parts are not affected by swaying or vibration, and improving the connection effect of the device.
[0035] In practical use, those skilled in the art first insert the busbar connector into the ceramic heat sink 170, making it contact the conductive plate 180. Then, tighten the bolts to ensure the conductive plate 180 and the busbar connector are firmly in contact, thus completing the busbar connection. During subsequent use, the ceramic heat sink 170 conducts heat to the thermally conductive silicone pad 130, which then directs the heat to the finned heat sink 120. The heat is then transferred to the finned heat sink 120 and dissipated into the frame 110, activating the system. The fan 140 blows the heat dissipated by the finned heat sink 120 out of the frame 110, thereby providing auxiliary heat dissipation at the busbar connection. When the busbar connection swings or vibrates, the first spring 210 and the damping rod 220 provide initial shock absorption. When the outer casing 200 swings or vibrates, it drives the first connecting plate 230 to move, causing the connecting rod 240 to bend. When the connecting rod 240 bends, it compresses the second spring 270, which provides secondary shock absorption and further buffers the impact.
[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A busbar trunking connection structure, characterized in that: The device includes an inner shell (100) and an outer shell (200), the outer shell (200) being located on the outer side wall of the inner shell (100). A frame (110) is fixedly connected to the top and bottom of the inner shell (100). A finned heat sink (120) is embedded in the top and bottom of the inner cavity of the frame (110). A thermally conductive silicone sheet (130) is fixedly connected to the inner side wall of the finned heat sink (120). A fan (140) is fixedly connected between the inner side walls of the frame (110). A dustproof mesh (150) is fixedly connected to the top and bottom of the frame (110).
2. The busbar trunking connection structure according to claim 1, characterized in that: An mounting plate (160) is screwed between the left and right sidewalls of the inner cavity of the inner shell (100). A ceramic heat sink (170) is screwed between the inner sidewalls of the mounting plate (160). The top and bottom of the ceramic heat sink (170) are in contact with the thermally conductive silicone sheet (130). A conductive plate (180) is fixedly connected to the inner sidewall of the ceramic heat sink (170).
3. The busbar trunking connection structure according to claim 1, characterized in that: The inner cavity of the outer shell (200) is fixedly connected to the upper and lower sides of the front and rear side walls, and the ends of the first springs (210) are fixedly connected to the upper and lower sides of the front and rear side walls of the inner shell (100).
4. The busbar trunking connection structure according to claim 1, characterized in that: Damping rods (220) are fixedly connected to the upper and lower sides of the front and rear side walls of the inner cavity of the outer shell (200), and the damping rods (220) are located in the inner cavity of the first spring (210). The ends of the damping rods (220) are fixedly connected to the upper and lower sides of the front and rear side walls of the inner shell (100).
5. The busbar trunking connection structure according to claim 1, characterized in that: A first connecting plate (230) is fixedly connected to the middle of the front and rear side walls of the inner cavity of the outer shell (200), and a connecting rod (240) is rotatably connected to the inner side wall of the first connecting plate (230).
6. The busbar trunking connection structure according to claim 5, characterized in that: The end of the linkage rod (240) is fixedly connected to a second connecting plate (250), which is fixedly connected to the middle of the front and rear side walls of the inner shell (100).
7. The busbar trunking connection structure according to claim 5, characterized in that: The connecting rod (240) has connecting blocks (260) rotatably connected to the front and rear sides of its outer sidewall, and a second spring (270) is fixedly connected between the inner sidewalls of the connecting blocks (260).