A heat dissipation device for a dense bus duct

By combining heat conduction components and heat dissipation components, the problems of long heat conduction paths and unadjustable heat dissipation rates in traditional dense busbar cooling devices are solved, achieving efficient and stable heat dissipation and intelligent management, thereby improving the service life and energy utilization of the equipment.

CN224342891UActive Publication Date: 2026-06-09SHENZHEN YUEDA ELECTRICAL EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN YUEDA ELECTRICAL EQUIP CO LTD
Filing Date
2025-07-25
Publication Date
2026-06-09

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Abstract

This utility model relates to the field of busbar trunking technology and discloses a heat dissipation device for a high-density busbar trunking system. The device includes a high-density busbar trunking body, with a first heat dissipation fin on its outer surface and a connecting seat fixedly connected inside. This utility model utilizes a servo motor to drive a rotating drive rod structure, which in turn drives the fan blades at high speed and generates forced airflow. This achieves efficient blowing and airflow circulation onto the heat dissipation plate. The forced airflow generated by the fan blades accelerates heat exchange between the heat dissipation plate and the air, significantly improving the heat dissipation rate. It is particularly suitable for rapid cooling under high-load conditions. The rotating fit design between the bottom of the drive rod and the mounting slot ensures the stability of the fan blade rotation, reduces mechanical friction noise, and extends the equipment's service life. The controllability of the servo motor allows for adjustment of the speed or start / stop based on the busbar trunking's heating status, achieving intelligent heat dissipation management.
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Description

Technical Field

[0001] This utility model relates to the field of busbar technology, and in particular to a heat dissipation device for a dense busbar. Background Technology

[0002] With the development of smart grids and new energy technologies, in the process of high-load power transmission and operation of equipment in enclosed spaces, it is necessary to efficiently conduct and actively dissipate the heat generated by dense busbar trunking, which requires the use of heat dissipation devices.

[0003] In practical use, similar heat dissipation devices still have many defects. For example, the connection between the heat conduction components of traditional heat dissipation devices and the bus trunking body is mostly fixed on one side or glued, resulting in a long heat conduction path and high thermal resistance. Moreover, they are prone to loosening due to vibration during long-term operation, which affects the heat dissipation effect. At the same time, traditional heat dissipation devices mostly rely on the natural heat dissipation of the heat sink, which cannot actively accelerate heat exchange, and the heat dissipation rate is not adjustable. Therefore, it is necessary to design a heat dissipation device for dense bus trunking. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a heat dissipation device for a dense busbar trunking.

[0005] This utility model is achieved using the following technical solution: a heat dissipation device for a high-density busbar trunking, comprising a high-density busbar trunking body, a first heat dissipation fin being formed on the outer surface of the high-density busbar trunking body, a connecting seat being fixedly connected inside the high-density busbar trunking body, and heat dissipation plates being fixedly connected to both sides of the outer surface of the high-density busbar trunking body, and further comprising:

[0006] A heat-conducting assembly, comprising a connecting plate fixedly connected to the outer surface of a connecting seat by a first fixing bolt, wherein a heat-conducting sheet is fixedly connected to the bottom of the connecting plate;

[0007] The heat dissipation assembly includes a servo motor fixedly connected to the top of the heat-conducting plate by a second fixing bolt, and the output end of the servo motor is provided with fan blades.

[0008] As a further improvement to the above solution, a connecting plate is placed on the top and bottom of the connecting seat, and the connecting plate and the connecting seat are connected by a first fixing bolt.

[0009] Through the above technical solution, the connecting plates are symmetrically distributed at the upper and lower ends of the connecting seat, and are fastened with bolts to form a two-way constraint, which effectively prevents the heat conduction components from loosening or shifting due to busbar vibration or thermal expansion and contraction. The symmetrical design of the upper and lower connecting plates maximizes the contact area between the heat conduction plate and the busbar body, making the heat conduction more uniform and avoiding insufficient local heat conduction efficiency that may be caused by unilateral fixation.

[0010] As a further improvement to the above solution, a mounting groove is provided at the center of the connecting plate, and fixing grooves are provided on both sides of the mounting groove.

[0011] Through the above technical solution, the mounting groove provides a preset rotation space for the drive rod, while the fixing groove is used for the quick positioning of the second fixing bolt, which reduces the installation difficulty and time cost. The integrated design of the mounting groove and the fixing groove reduces the number of parts and avoids the risk of cumulative error or loosening that may be caused by the traditional decentralized fixing structure.

[0012] As a further improvement to the above solution, a heat-conducting plate is fixedly connected to the bottom of the mounting groove, and the heat-conducting plate is placed on the outer surface of the dense busbar trunking body.

[0013] Through the above technical solution, the heat-conducting sheet directly contacts the outer surface of the busbar trunking body, reducing the interfacial thermal resistance during heat transfer and improving the heat conduction efficiency. As a buffer layer, the heat-conducting sheet can prevent the busbar trunking body from being damaged by high temperature or mechanical friction, thus extending the service life of the equipment.

[0014] As a further improvement to the above solution, a fixing plate is placed on the outer surface of the connecting plate, and the fixing plate and the connecting plate are fixedly connected by a second fixing bolt, which is threaded into the inside of the fixing groove.

[0015] With the above technical solution, the fixing plate is connected to the connecting plate by the second fixing bolt, which allows for quick disassembly of the servo motor or drive rod, facilitating cleaning or maintenance. The rigid connection between the fixing plate and the connecting plate enhances the overall vibration resistance and prevents the heat dissipation components from loosening due to vibration during high-load operation.

[0016] As a further improvement to the above solution, a servo motor is fixedly connected to the top of the fixed plate, and a drive rod is fixedly connected to the output end of the servo motor.

[0017] Through the above technical solutions, the controllability of the servo motor allows for dynamic adjustment of the speed according to the heating status of the bus trunking, realizing intelligent heat dissipation management and avoiding energy waste. The mounting plate serves as the mounting base for the servo motor, reducing the transmission of motor vibration to the bus trunking body and improving the stability of equipment operation.

[0018] As a further improvement to the above solution, the bottom of the drive rod is rotatably mounted inside the mounting groove, and a fan blade is fixedly connected to the outer surface of the drive rod.

[0019] Through the above technical solution, the rotational cooperation between the drive rod and the mounting slot reduces mechanical friction noise. At the same time, the balanced design of the fan blades further reduces vibration noise during operation. The position and angle of the fan blades have been optimized to ensure that the airflow evenly covers the heat sink, avoiding the uneven heat dissipation problem that may be caused by traditional single-point blowing.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This invention utilizes the operation of the first fixing bolt connection structure between the connecting plate and the connecting seat to ensure stable contact between the heat-conducting component and the busbar trunking body. This achieves efficient heat transfer from the outer surface of the busbar trunking body to the heat-conducting sheet. The heat-conducting sheet acts as a bridge, rapidly transferring heat from inside the busbar trunking to the external heat dissipation structure, preventing heat accumulation inside the busbar trunking body and reducing the risk of localized overheating. The connecting plate is secured to the connecting seat by the first fixing bolt, ensuring the vibration resistance of the heat-conducting component during busbar trunking operation and preventing a decrease in heat conduction efficiency or equipment damage due to loosening.

[0022] This invention utilizes a servo motor to drive a rotating drive rod, which in turn drives the fan blades at high speed and generates forced airflow. This achieves efficient blowing and airflow circulation onto the heat sink. The forced airflow generated by the fan blades accelerates heat exchange between the heat sink and the air, significantly improving the heat dissipation rate. It is particularly suitable for rapid cooling under high-load conditions. The rotating fit design between the bottom of the drive rod and the mounting slot ensures the stability of the fan blades during rotation, reduces mechanical friction noise, and extends the service life of the equipment. The controllability of the servo motor allows for adjustment of the speed or start / stop based on the heating status of the busbar, enabling intelligent heat dissipation management and further optimizing energy utilization. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0025] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0026] Figure 4 This is an exploded view of the overall internal structure of this utility model;

[0027] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point B.

[0028] Explanation of key symbols:

[0029] 1. High-density busbar trunking body; 101. First heat sink; 102. Connecting seat; 103. Heat sink plate; 2. Heat conduction assembly; 201. First fixing bolt; 202. Connecting plate; 203. Mounting slot; 204. Heat conduction sheet; 205. Fixing slot; 3. Heat dissipation assembly; 301. Second fixing bolt; 302. Fixing plate; 303. Servo motor; 304. Drive rod; 305. Fan blade. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] Example:

[0032] Please combine Figure 1-5 This embodiment of a heat dissipation device for a high-density busbar trunking includes a high-density busbar trunking body 1, a first heat sink 101 formed on the outer surface of the high-density busbar trunking body 1, a connecting seat 102 fixedly connected inside the high-density busbar trunking body 1, and heat sink plates 103 fixedly connected to both sides of the outer surface of the high-density busbar trunking body 1. It also includes:

[0033] The heat-conducting component 2 includes a connecting plate 202 fixedly connected to the outer surface of the connecting seat 102 by a first fixing bolt 201, and a heat-conducting sheet 204 fixedly connected to the bottom of the connecting plate 202.

[0034] The heat dissipation assembly 3 includes a servo motor 303 that is fixedly connected to the top of the heat conduction plate 204 by a second fixing bolt 301, and the output end of the servo motor 303 is provided with fan blades 305.

[0035] Connecting plates 202 are placed on the top and bottom of the connecting seat 102, and the connecting plates 202 and the connecting seat 102 are threadedly connected by the first fixing bolt 201.

[0036] A mounting groove 203 is provided at the center of the connecting plate 202, and fixing grooves 205 are provided on both sides of the mounting groove 203.

[0037] A heat-conducting plate 204 is fixedly connected to the bottom of the mounting slot 203, and the heat-conducting plate 204 is placed on the outer surface of the compact busbar trunking body 1.

[0038] A fixing plate 302 is placed on the outer surface of the connecting plate 202. The fixing plate 302 and the connecting plate 202 are fixedly connected by a second fixing bolt 301. The second fixing bolt 301 is threaded into the inside of the fixing groove 205.

[0039] Heat is efficiently conducted from the outer surface of the busbar trunking body 1 to the heat-conducting component 2 by the heat-conducting plate 204 fixed to the bottom of the mounting groove 203 of the connecting plate 202. The heat-conducting plate 204 acts as a bridge for heat conduction, quickly transferring the heat inside the busbar trunking to the external heat dissipation structure, providing a foundation for subsequent heat dissipation.

[0040] A servo motor 303 is fixedly connected to the top of the fixed plate 302, and a drive rod 304 is fixedly connected to the output end of the servo motor 303.

[0041] The bottom of the drive rod 304 is rotatably mounted inside the mounting slot 203, and the outer surface of the drive rod 304 is fixedly connected to the fan blade 305.

[0042] The forced airflow generated by the fan blades 305 blows the heat sink 103 on the outer surface of the busbar trunking body 1, accelerating the heat exchange efficiency between the heat sink and the air.

[0043] The implementation principle of the heat dissipation device for a compact busbar trunking in this embodiment is as follows: the connecting plate 202 and the connecting seat 102 are fastened by the first fixing bolt 201, and the heat-conducting component 2 is stably installed on the outer surface of the compact busbar trunking body 1. When heat is generated inside the busbar trunking body 1, the heat is initially dissipated through the first heat dissipation fin 101 on the outer surface. At the same time, the heat is efficiently conducted from the outer surface of the busbar trunking body 1 to the heat-conducting component 2 through the heat-conducting plate 204 fixed to the bottom of the mounting groove 203 of the connecting plate 202. The heat-conducting plate 204 serves as a heat conductor. The bridge quickly transfers heat from inside the busbar trunking to the external heat dissipation structure, providing a foundation for subsequent heat dissipation. Based on the heat conduction component 2, after the servo motor 303 starts, its output end drives the drive rod 304 to rotate, which in turn drives the fan blade 305 to rotate at high speed. The forced wind generated by the fan blade 305 blows the heat dissipation plate 103 on the outer surface of the busbar trunking body 1, accelerating the heat exchange efficiency between the heat dissipation plate and the air. The rotational cooperation design between the bottom of the drive rod 304 and the mounting groove 203 ensures the stability and low noise characteristics of the fan blade 305 during rotation.

[0044] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A heat dissipation device for a high-density busbar trunking, comprising a high-density busbar trunking body (1), wherein a first heat dissipation fin (101) is provided on the outer surface of the high-density busbar trunking body (1), a connecting seat (102) is fixedly connected inside the high-density busbar trunking body (1), and heat dissipation plates (103) are fixedly connected to both sides of the outer surface of the high-density busbar trunking body (1), characterized in that, Also includes: A heat-conducting component (2) includes a connecting plate (202) fixedly connected to the outer surface of the connecting seat (102) by a first fixing bolt (201), and a heat-conducting sheet (204) is fixedly connected to the bottom of the connecting plate (202); The heat dissipation assembly (3) includes a servo motor (303) fixedly connected to the top of the heat conduction plate (204) by a second fixing bolt (301), and the output end of the servo motor (303) is provided with fan blades (305).

2. The heat dissipation device for a dense busbar trunking as described in claim 1, characterized in that: A connecting plate (202) is placed on the top and bottom of the connecting seat (102), and the connecting plate (202) and the connecting seat (102) are threadedly connected by a first fixing bolt (201).

3. The heat dissipation device for a dense busbar trunking as described in claim 2, characterized in that: The connecting plate (202) has an installation groove (203) at its center, and fixing grooves (205) are provided on both sides of the installation groove (203).

4. The heat dissipation device for a dense busbar trunking as described in claim 3, characterized in that: A heat-conducting plate (204) is fixedly connected to the bottom of the mounting groove (203), and the heat-conducting plate (204) is placed on the outer surface of the dense busbar trunking body (1).

5. The heat dissipation device for a dense busbar trunking as described in claim 3, characterized in that: A fixing plate (302) is placed on the outer surface of the connecting plate (202). The fixing plate (302) and the connecting plate (202) are fixedly connected by a second fixing bolt (301). The second fixing bolt (301) is threaded into the inside of the fixing groove (205).

6. The heat dissipation device for a dense busbar trunking as described in claim 5, characterized in that: A servo motor (303) is fixedly connected to the top of the fixed plate (302), and a drive rod (304) is fixedly connected to the output end of the servo motor (303).

7. The heat dissipation device for a dense busbar trunking as described in claim 6, characterized in that: The bottom of the drive rod (304) is rotatably mounted inside the mounting groove (203), and a fan blade (305) is fixedly connected to the outer surface of the drive rod (304).