Large-current circuit breaker support
By designing an integrated conductive member coupling part and a radiator docking part in a high-current circuit breaker bracket, combining the dual limit structure and efficient heat dissipation design, the problems of many parts, complex assembly and poor heat dissipation performance of traditional brackets are solved, and the problems of traditional brackets are achieved. It has tight connections and good heat dissipation.
Patent Information
- Application Number
- CN202421146483.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-24
AI Technical Summary
Traditional high-current circuit breakers have many parts, complex assembly and insufficient limits, resulting in loose connections and poor heat dissipation performance.
The conductive parts and main radiator are designed, in which the conductive parts and the docking part on the radiator are integrally formed, with a double limit structure, and the heat dissipation effect is improved through the heat-induced edge, inner and outer heat-sensitive columns and wedge-shaped heat-induced fins.
Reduces the number of parts, simplifies assembly, ensures tight connections and is not easy to loosen, and significantly improves heat dissipation.
Smart Images
Figure CN222320141U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a high-current circuit breaker bracket. Background Art
[0002] The traditional isolation trolley structure includes a chassis, an insulating cylinder arranged on the chassis, a first contact arm arranged at the upper end of the insulating cylinder, and a second contact arm arranged at the lower end of the insulating cylinder. The first contact arm and the second contact arm are electrically connected in the insulating cylinder through a high-current circuit breaker bracket to form a primary main circuit. The mainstream high-current circuit breaker bracket on the market includes an upper bracket connected to the first contact arm, a lower bracket connected to the second contact arm, a conductive member connecting the upper bracket and the lower bracket together, and a heat sink arranged on the upper bracket. There are the following problems in actual use: 1. There are many parts, the assembly is cumbersome and there are few limit stops. Simple bolt docking is used, and the contact part is prone to loosening after long-term use, resulting in loose connection; 2. The heat dissipation performance of the radiator is average. In view of this, the existing high-current circuit breaker bracket is improved and optimized. Utility Model Content
[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a high-current circuit breaker bracket.
[0004] The technical solution adopted by the utility model high current circuit breaker bracket is characterized in that it includes a conductive member and a main radiator, the conductive member includes a conductive member connecting portion and a conductive member lower docking portion connected to the second contact arm, the main radiator includes a radiator body fitted with the upper end of the conductive member connecting portion and a radiator upper docking portion connected to the first contact arm, the conductive member lower docking portion and the radiator upper docking portion are both provided with a square docking surface, the lower part of the square docking surface is provided with a contact arm receiving protrusion, the square docking surface is provided with a contact arm fixing hole penetrating horizontally, and the contact arm receiving protrusion is provided with a contact arm reinforcement limiting hole penetrating longitudinally;
[0005] The radiator body is provided with a radiator docking hole and radiator mounting holes arranged at intervals around the radiator docking hole, the upper and lower ends of the radiator body are both provided with heat-introducing edges outside the radiator mounting hole, the upper end of the radiator body is provided with heat-introducing fins at intervals around the arc on the outer wall of the heat-introducing edges, the radiator body is provided with inner heat-dissipating columns and outer heat-dissipating columns at intervals around the arc outside the heat-dissipating edges, and the inner heat-dissipating columns and the outer heat-dissipating columns are both provided with heat-dissipating holes;
[0006] The upper end of the conductive member connecting portion is provided with a conductive member through hole corresponding to the heat sink docking hole, a conductive member connecting hole corresponding to the heat sink mounting hole, and a conductive member heat guide groove corresponding to the heat guide surrounding edge.
[0007] The inner heat dissipation columns and the outer heat dissipation columns are staggered.
[0008] A radiator mounting ear is also provided on the outer side of the radiator body, and a radiator external connection hole is provided on the radiator mounting ear.
[0009] The square docking surface is provided with a contact arm positioning column, and the contact arm fixing holes are arranged at intervals around the contact arm positioning column around a circular arc.
[0010] The heat-introducing fin is a wedge-shaped structure.
[0011] The conductive member connecting portion is a cylindrical structure, and heat dissipation convex edges are arranged at intervals on the outer wall thereof.
[0012] The conductive part is made of aluminum, and the main heat sink is made of pure copper.
[0013] The advantages of the large current circuit breaker bracket of the utility model are that the conductive part connecting part and the lower docking part of the conductive part, the radiator body and the upper docking part of the radiator are all integrally formed, which reduces the number of parts, is easy to assemble, and has a compact and reliable structure; the lower docking part of the conductive part and the upper docking part of the radiator are respectively provided with a double horizontal and vertical limiting structure when connected to the contact arm, and the connection is tight and not easy to loosen; the heat-guiding surrounding edge and the staggered inner and outer heat-dissipating columns can effectively accelerate the heat dissipation, and the heat dissipation effect is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0015] Figure 1 It is a structural schematic diagram of a large current circuit breaker bracket of the utility model;
[0016] Figure 2 It is a structural schematic diagram of the conductive member of the utility model;
[0017] Figure 3 It is a schematic diagram of the back structure of the main radiator of the utility model;
[0018] Figure 4 It is a front structural schematic diagram of the main radiator of the utility model. DETAILED DESCRIPTION
[0019] like Figure 1-4As shown, the high-current circuit breaker bracket involved in the utility model comprises a conductive member 1 and a main radiator 2, wherein the conductive member 1 comprises a conductive member connecting portion 4 and a conductive member lower docking portion 5 connected to a second contact arm, wherein the main radiator 2 comprises a radiator body 6 fitted with the upper end of the conductive member connecting portion 4 and a radiator upper docking portion 7 connected to a first contact arm, wherein the conductive member lower docking portion 5 and the radiator upper docking portion 7 are both provided with a square docking surface 9, wherein a contact arm receiving protrusion 10 is provided at the lower part of the square docking surface 9, wherein a contact arm fixing hole 11 penetrating transversely is provided on the square docking surface 9, wherein a contact arm receiving protrusion 10 penetrating longitudinally is provided on the contact arm reinforcing limiting hole 12, wherein the conductive member connecting portion 4 and the conductive member lower docking portion 5, the radiator body 6 and the radiator upper docking portion 7 are all integrally formed, thereby reducing the number of components, facilitating assembly, and having a compact and reliable structure; the conductive member lower docking portion 5 and the radiator upper docking portion 7 are respectively provided with a transverse and longitudinal double limiting structure when connected to the contact arm, and the connection is tight and not easy to loosen.
[0020] The radiator body 6 is provided with a radiator docking hole 14 and radiator mounting holes 15 arranged at intervals around the radiator docking hole 14, and the upper and lower ends of the radiator body 6 are both provided with heat-inducing edges 16 outside the radiator mounting hole 15, and the upper and lower ends of the radiator body 6 are provided with heat-inducing fins 17 around the arc intervals on the outer wall of the heat-inducing edges 16. The radiator body 6 is provided with inner heat dissipation columns 18 and outer heat dissipation columns 19 around the arc intervals outside the heat-inducing edges 16, and heat dissipation holes 20 are provided on the inner heat dissipation columns 18 and the outer heat dissipation columns 19; the upper end of the conductive member connecting portion 4 is provided with a conductive member through hole 21 corresponding to the radiator docking hole 14, a conductive member connecting hole 22 corresponding to the radiator mounting hole 15, and a conductive member heat-inducing groove 23 corresponding to the heat-inducing edges 16, and the heat-inducing edges 17 can accelerate the transfer of heat from the conductive member 1 to the main radiator 2, and cooperate with the heat-inducing fins 17 and the inner heat dissipation columns 18 and the outer heat dissipation columns 19 to accelerate the diffusion of heat outward, thereby achieving a better heat dissipation effect.
[0021] The inner heat dissipation columns 18 and the outer heat dissipation columns 19 are staggered to further accelerate the diffusion of heat outwards.
[0022] The outer side of the radiator body 6 is also provided with a radiator mounting ear 25 , and the radiator mounting ear 25 is provided with a radiator external connection hole 26 , and components can be added as needed, so that the adaptability is higher.
[0023] The square butt joint surface 9 is provided with a contact arm positioning column 27 , and the contact arm fixing holes 11 are arranged at intervals around the contact arm positioning column 27 at an arc, so as to accurately position and improve the reliability and stability of the connection.
[0024] The heat-introducing fins 17 are wedge-shaped to further accelerate the diffusion of heat outwards.
[0025] The conductive member connecting portion 4 is a cylindrical structure, and a heat dissipation convex edge 29 is provided on its outer wall at intervals.
[0026] The conductive member 1 is made of aluminum, and the main heat sink 2 is made of pure copper, which meets the heat dissipation conditions and reduces the cost.
[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.
Claims
1. A high current circuit breaker bracket, characterized in that: The invention comprises a conductive member (1) and a main heat sink (2), wherein the conductive member (1) comprises a conductive member connecting portion (4) and a conductive member lower docking portion (5) connected to a second contact arm, and the main heat sink (2) comprises a heat sink body (6) fitted with the upper end of the conductive member connecting portion (4) and a heat sink upper docking portion (7) connected to a first contact arm, wherein the conductive member lower docking portion (5) and the heat sink upper docking portion (7) are both provided with a square docking surface (9), a contact arm receiving protrusion (10) is provided at the lower part of the square docking surface (9), a contact arm fixing hole (11) extending transversely therethrough is provided on the square docking surface (9), and a contact arm reinforcing limit hole (12) extending longitudinally therethrough is provided on the contact arm receiving protrusion (10); The radiator body (6) is provided with a radiator docking hole (14) and radiator mounting holes (15) arranged at intervals around the radiator docking hole (14); the upper and lower ends of the radiator body (6) are both provided with heat-inducing edges (16) outside the radiator mounting hole (15); the upper end of the radiator body (6) is provided with heat-inducing fins (17) at intervals around circular arcs on the outer wall of the heat-inducing edges (16); the radiator body (6) is provided with inner heat-dissipating columns (18) and outer heat-dissipating columns (19) at intervals around circular arcs outside the heat-dissipating edges (16); and the inner heat-dissipating columns (18) and the outer heat-dissipating columns (19) are both provided with heat-dissipating holes (20); The upper end of the conductive member connecting portion (4) is provided with a conductive member through hole (21) corresponding to the heat sink docking hole (14), a conductive member connecting hole (22) corresponding to the heat sink mounting hole (15), and a conductive member heat conduction groove (23) corresponding to the heat conduction surrounding edge (16).
2. The high current circuit breaker bracket according to claim 1, characterized in that: The inner heat dissipation columns (18) and the outer heat dissipation columns (19) are arranged in a staggered manner.
3. The high current circuit breaker support according to claim 1, characterized in that: A radiator mounting ear (25) is also provided on the outside of the radiator body (6), and a radiator external connection hole (26) is provided on the radiator mounting ear (25).
4. The high current circuit breaker support according to claim 1, characterized in that: The square docking surface (9) is provided with a contact arm positioning column (27), and the contact arm fixing holes (11) are provided at intervals around a circular arc outside the contact arm positioning column (27).
5. The high current circuit breaker support according to claim 1, characterized in that: The heat-inducing fin (17) is a wedge-shaped structure.
6. The high current circuit breaker support according to claim 1, characterized in that: The conductive member connecting portion (4) is a cylindrical structure, and heat dissipation convex edges (29) are arranged at intervals on its outer wall.
7. The high current circuit breaker support according to claim 1, characterized in that: The conductive element (1) is made of aluminum, and the main heat sink (2) is made of pure copper.