Core type structure of fuse and fuse
By adopting a core heat dissipation structure with a greater thermal conductivity than the filler in the fuse, the problem of low heat dissipation efficiency of the existing fuse is solved, and more efficient heat dissipation is achieved, faults and increased maintenance costs are avoided, and the stable operation of the system is ensured.
Patent Information
- Application Number
- CN202421545488.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The existing fuses restrict air flow due to the compact internal structure, resulting in reduced heat dissipation efficiency, especially in closed or poor ventilation environments, which may cause continuous increase in internal temperature, causing failure and increasing maintenance costs.
A core-type fuse is designed, and a core-type heat dissipation structure with a greater thermal conductivity than the filler is used to replace some filler to improve heat dissipation efficiency. The structure includes a core heat dissipation structure, a melt and a terminal, a core heat dissipation structure is connected to the melt, and a filler is provided between the core heat dissipation structure and the filler.
By improving the heat dissipation performance of the fuse, the continuous increase in internal temperature and failure caused by poor heat dissipation performance are avoided, maintenance costs are reduced, and the stable operation of the system is achieved.
Smart Images
Figure CN222785249U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fuse heat dissipation, in particular to a fuse core structure and a fuse. Background Art
[0002] In the field of modern circuit protection, fuses play a vital role. They disconnect the circuit by melting the internal metal melt under overcurrent conditions, thereby preventing overcurrent from damaging the circuit. At present, in pursuit of miniaturization and easy-to-install designs, the internal structure of existing fuses is designed to be more and more compact. However, existing fuses mainly use natural cooling methods, relying on air flow to dissipate the heat generated internally. This compact layout limits the internal air flow, affects the natural convection and radiation heat dissipation of heat, causes the internal temperature to rise, and thus leads to reduced heat dissipation efficiency. Especially in closed or poorly ventilated environments, the poor heat dissipation performance of the fuse may cause the internal temperature to continue to rise, causing fuse failure, increasing maintenance costs, and affecting the stable operation of the overall system. Utility Model Content
[0003] In view of the defects in the prior art, the purpose of the utility model is to provide a core structure of a fuse and a fuse, which can improve the heat dissipation efficiency of the fuse and achieve stable operation of the system by replacing part of the filler with a core heat dissipation structure with a greater thermal conductivity than the filler on the basis of miniaturization of the fuse.
[0004] In order to solve the above technical problems, the utility model provides a core structure of a fuse, including a core heat dissipation structure, a fuse is arranged on the outside of the core heat dissipation structure, and terminals are arranged at both ends; the core heat dissipation structure and the fuse are both connected to the terminals, a filler is arranged between the fuse and the core heat dissipation structure, and the thermal conductivity of the core heat dissipation structure is greater than the thermal conductivity of the filler.
[0005] Furthermore, the core-type heat dissipation structure comprises a heat dissipation structure main body, and two ends of the heat dissipation structure main body are fixedly connected or detachably connected to the terminals.
[0006] Furthermore, both ends of the heat dissipation structure body are provided with heat dissipation structure connectors, and the terminals are provided with connection holes matching the heat dissipation structure connectors.
[0007] Furthermore, when the heat dissipation structure body is fixedly connected to the terminal, the heat dissipation structure connector is inserted into the connection hole, and an adhesive is provided between the heat dissipation structure connector and the terminal.
[0008] Furthermore, in the case where the heat dissipation structure body and the terminal are detachably connected, the heat dissipation structure connector and the connection hole are connected via threads.
[0009] Furthermore, the terminal includes a first connecting part and a second connecting part, the first connecting part is connected to the second connecting part; the first connecting part is provided with a wiring hole for wiring, and the second connecting part is provided with the connecting hole for connecting to the heat dissipation structure connector.
[0010] Furthermore, the first connection portion and the second connection portion are fixedly connected or integrally formed.
[0011] Furthermore, the core-type heat dissipation structure is made of ceramic material.
[0012] Furthermore, the core-type heat dissipation structure adopts an integrally formed solid ceramic.
[0013] The utility model also provides a fuse, comprising a fuse core structure and a shell as described in any one of the above items, wherein the shell is arranged on the outside of the fuse and is connected with the terminal through, and the filler is arranged between the shell and the fuse.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] The utility model provides a core structure of a fuse, including a core heat dissipation structure, a melt is arranged on the outside of the core heat dissipation structure, and terminals are arranged at both ends; the core heat dissipation structure and the melt are connected to the terminals, a filler is arranged between the melt and the core heat dissipation structure, and the thermal conductivity of the core heat dissipation structure is greater than the thermal conductivity of the filler. This technical solution can improve the heat dissipation performance inside the fuse by replacing part of the filler with a core heat dissipation structure having a greater thermal conductivity than the filler on the basis of miniaturization of the fuse, thereby improving the heat dissipation efficiency of the fuse, avoiding the situation where the internal temperature of the fuse continues to rise due to poor heat dissipation performance of the fuse, causing the fuse to fail, reducing maintenance costs, and achieving stable operation of the system.
[0016] The utility model also provides a fuse, including the core structure of the above-mentioned fuse and a shell, the shell is arranged outside the fuse and is connected with the terminal through, and a filler is arranged between the shell and the fuse. Since the fuse includes the core structure of the above-mentioned fuse, it also has the same beneficial effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0018] Figure 1 A schematic structural diagram of a core structure of a fuse provided in an embodiment of the utility model;
[0019] Figure 2 A side schematic diagram of a core structure of a fuse provided by an embodiment of the utility model;
[0020] Figure 3 A cross-sectional schematic diagram of a core structure of a fuse provided in an embodiment of the utility model.
[0021] In the figure:
[0022] 1. Terminal; 101. First connection portion; 102. Wiring hole; 103. Second connection portion; 104. Connection hole;
[0023] 2. Melt;
[0024] 3. Core-type heat dissipation structure; 301. Heat dissipation structure main body; 302. Heat dissipation structure connector. DETAILED DESCRIPTION
[0025] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.
[0026] Embodiment 1:
[0027] See also Figure 1-3 The present embodiment provides a core structure of a fuse, including a core heat dissipation structure 3, a fuse 2 is arranged on the outside of the core heat dissipation structure 3, and terminals 1 are arranged at both ends; the core heat dissipation structure 3 and the fuse 2 are both connected to the terminal 1, and a filler (not shown in the figure) is arranged between the fuse 2 and the core heat dissipation structure 3, and the thermal conductivity of the core heat dissipation structure 3 is greater than the thermal conductivity of the filler.
[0028] In a specific embodiment, the core-type heat dissipation structure 3 includes a heat dissipation structure main body 301, and heat dissipation structure connectors 302 are provided at both ends of the heat dissipation structure main body 301; the terminal 1 includes a first connection part 101 and a second connection part 103, the first connection part 101 and the second connection part 103 are fixedly connected (such as welding) or integrally formed, the first connection part 101 is provided with a wiring hole 102 for wiring, and the second connection part 103 is provided with a connection hole 104 for connecting to the heat dissipation structure connector 302 and matching the heat dissipation structure connector 302, and the heat dissipation structure connector 302 is fixedly connected or detachably connected to the connection hole 104.
[0029] In an optional embodiment, the first connection part 101 and the second connection part 103 are integrally formed, and the heat dissipation structure connector 302 is fixedly connected to the connection hole 104. At this time, the heat dissipation structure connector 302 is inserted into the connection hole 104, and an adhesive is provided between the heat dissipation structure connector 302 and the terminal 1.
[0030] In another optional embodiment, the first connection part 101 and the second connection part 103 are integrally formed, and the heat dissipation structure connector 302 and the connection hole 104 are detachably connected. In this case, the heat dissipation structure connector 302 and the connection hole 104 can be connected by threads.
[0031] In a preferred embodiment, the core heat dissipation structure 3 is made of an integrally formed solid ceramic material.
[0032] In an optional embodiment, the melt 2 has a sheet structure.
[0033] This embodiment can improve the heat dissipation performance inside the fuse by providing a core-type heat dissipation structure 3 with a greater thermal conductivity than the filler to replace part of the filler on the basis of miniaturization of the fuse, thereby improving the heat dissipation efficiency of the fuse, avoiding the situation where the internal temperature continues to rise due to poor heat dissipation performance of the fuse and causing fuse failure, reducing maintenance costs, and achieving stable operation of the system.
[0034] Embodiment 2:
[0035] This embodiment provides a fuse, including a fuse core structure and a shell as described in Embodiment 1. The shell is arranged outside the fuse 2 and is connected to the terminal 1 through it. A filler is arranged between the shell and the fuse 2.
[0036] Since the fuse in this embodiment has the core structure of the fuse in Embodiment 1, the fuse also has the beneficial effects that can be achieved by Embodiment 1.
[0037] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.
Claims
1. A core structure of a fuse, characterized in that: The invention comprises a core-type heat dissipation structure (3), a melt (2) is arranged on the outside of the core-type heat dissipation structure (3), and terminals (1) are arranged at both ends; the core-type heat dissipation structure (3) and the melt (2) are both connected to the terminals (1), a filler is arranged between the melt (2) and the core-type heat dissipation structure (3), and the thermal conductivity of the core-type heat dissipation structure (3) is greater than the thermal conductivity of the filler.
2. A fuse core structure according to claim 1, characterized in that: The core-type heat dissipation structure (3) comprises a heat dissipation structure main body (301), and two ends of the heat dissipation structure main body (301) are fixedly connected or detachably connected to the terminal (1).
3. A fuse core structure according to claim 2, characterized in that: Both ends of the heat dissipation structure main body (301) are provided with heat dissipation structure connectors (302), and the terminal (1) is provided with a connection hole (104) matching the heat dissipation structure connector (302).
4. A fuse core structure according to claim 3, characterized in that: When the heat dissipation structure main body (301) and the terminal (1) are fixedly connected, the heat dissipation structure connecting piece (302) is inserted into the connecting hole (104), and an adhesive is provided between the heat dissipation structure connecting piece (302) and the terminal (1).
5. The core structure of a fuse according to claim 3, characterized in that: When the heat dissipation structure main body (301) and the terminal (1) are detachably connected, the heat dissipation structure connecting piece (302) and the connecting hole (104) are connected via threads.
6. The core structure of a fuse according to claim 3, characterized in that: The terminal (1) comprises a first connecting portion (101) and a second connecting portion (103), wherein the first connecting portion (101) is connected to the second connecting portion (103); the first connecting portion (101) is provided with a wiring hole (102) for wiring, and the second connecting portion (103) is provided with the connecting hole (104) for connecting to the heat dissipation structure connector (302).
7. A fuse core structure according to claim 6, characterized in that: The first connection portion (101) and the second connection portion (103) are fixedly connected or integrally formed.
8. A fuse core structure according to any one of claims 1 to 7, characterized in that: The core-type heat dissipation structure (3) is made of ceramic material.
9. A fuse core structure according to claim 8, characterized in that: The core-type heat dissipation structure (3) is made of solid ceramic formed in one piece.
10. A fuse, characterized in that: It comprises a fuse core structure and a shell as claimed in any one of claims 1 to 9, wherein the shell is arranged on the outside of the fuse (2) and is connected to the terminal (1) through the shell, and the filler is arranged between the shell and the fuse (2).