A car fuse holder structure

Abstract

This utility model provides an automotive fuse holder structure, mainly relating to the technical field of automotive electrical components. It includes a spring, a mounting base, and a protective base. The spring is located above the mounting base and includes an arc-shaped spring arm, three evenly distributed raised contacts, and a reinforcing rib with a through hole. The mounting base has symmetrical fixing pins, a central insertion hole, and an annular groove with a sealing ring. The protective base is box-shaped and includes vent holes, auxiliary components, a buffer pad, and a dustproof mesh. This structure solves the problems of unstable contact, insufficient protection, and inconvenient disassembly / removal of traditional brackets through precise positioning and assembly, multi-contact conductivity, sealed dustproof heat dissipation, and vibration resistance design, improving stability and practicality, and adapting to the complex operating environment of automobiles.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of automotive electrical components, specifically an automotive fuse bracket structure. Background Technology

[0002] Currently, there are still many issues to be improved in the practical application of automotive fuse holders: most common holders on the market use single-point or two-point contact structures, which do not fit the fuse pins well enough. They are prone to loosening due to vehicle bumps and vibrations, which leads to increased contact resistance, increased heat loss when energized, and even the risk of contact failure. Some holders lack precise positioning and assembly structures, and the installation of the spring and the mounting base is prone to deviation, which not only reduces assembly efficiency but also further affects the conductivity stability.

[0003] Meanwhile, traditional brackets have shortcomings in protective performance. Most rely solely on simple outer shells for shielding, which is insufficient to effectively prevent moisture and dust from entering the vehicle's driving environment, easily causing internal components to rust or have poor contact. Furthermore, some brackets cannot simultaneously address heat dissipation and dust protection, either lacking effective heat dissipation channels leading to excessively high local temperatures, or allowing dust to easily clog the heat dissipation holes, affecting their service life. In addition, common brackets lack ease of disassembly and maintenance, with some integrated structures requiring complete disassembly, increasing later maintenance costs and failing to meet the comprehensive requirements of automotive electrical systems for stability, durability, and ease of maintenance. Utility Model Content

[0004] This utility model mainly provides an automotive fuse bracket structure to solve the technical problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: An automotive fuse holder structure includes a spring, a mounting base, and a protective base. The spring is disposed above the mounting base, and the protective base is disposed outside the spring and detachably connected to the mounting base. The mounting base includes a fixing pin, and the bottom of the mounting base has an upwardly extending fixing pin, which is symmetrically distributed along the central axis of the mounting base.

[0006] Preferably, the spring includes a spring arm, raised contacts, and reinforcing ribs. The spring arm extends in an arc shape, and three raised contacts are evenly arranged along the length of the spring arm on its outer surface. The central axis of each raised contact is parallel to the curvature center axis of the arc-shaped spring arm, and the distance between two adjacent raised contacts is equal. One end of the spring arm is integrally formed with a barb, the tip of which faces away from the concave surface of the spring arm. The reinforcing rib is located at the end of the spring arm away from the barb, and the reinforcing rib is provided with two through holes, and the diameter of the fixing pin matches the diameter of its holes.

[0007] Preferably, the mounting base includes a mounting seat, an insertion hole, an annular groove, and a sealing ring. The mounting seat is provided on the top of the mounting base, and the insertion hole through the mounting seat is opened in the center of the mounting seat. The annular groove is provided on the outer circumference of the mounting seat, and a sealing ring that fits against the inner wall of the protective seat is sleeved in the annular groove.

[0008] Preferably, the protective seat includes a vent, an auxiliary component, a buffer pad, and a dustproof net. The protective seat has a box-shaped structure, with multiple vents evenly distributed at the bottom. The bottom inner side of the protective seat is provided with a buffer pad that contacts the bottom of the auxiliary component. The upper end of the auxiliary component extends into the insertion hole, and a dustproof net covering the opening is fixedly installed inside the vent.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: The curved spring arm, combined with three evenly raised contact points, ensures tighter contact, lower resistance, lower heat loss during power-on, and vibration resistance and anti-fall-off properties. The symmetrical fixing pin and precise guiding design result in higher assembly efficiency and smaller deviations. The dual protection of the sealing ring and dustproof net ensures both sealing and moisture protection as well as heat dissipation, making it suitable for complex automotive environments. The detachable protective seat and modular design make disassembly and maintenance convenient, while the reinforcing ribs enhance structural durability. This effectively solves the problems of unstable contact, insufficient protection, and cumbersome assembly of traditional brackets, resulting in superior overall stability and practicality.

[0010] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the spring clip structure of this utility model; Figure 3 This is a schematic diagram of the assembly base structure of this utility model; Figure 4 This is a schematic diagram of the protective base structure of this utility model.

[0012] The attached figures are labeled as follows: 1. Spring; 11. Spring arm; 12. Raised contact point; 13. Reinforcing rib; 2. Assembly base; 21. Mounting base; 22. Fixing pin; 23. Insertion hole; 24. Annular groove; 25. Sealing ring; 3. Protective base; 31. Vent hole; 32. Auxiliary component; 33. Buffer pad; 34. Dustproof net. Detailed Implementation

[0013] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0014] Please refer to the appendix carefully. Figure 1-4 An automotive fuse holder structure includes a spring contact 1, a mounting base 2, and a protective base 3. The spring contact 1 is positioned above the mounting base 2 and serves as the core conductive contact component of the fuse. Its elasticity allows for a tight fit with the fuse pins, ensuring stable current transmission. The protective base 3 covers the outside of the spring contact 1 and is detachably connected to the mounting base 2. This facilitates subsequent fuse installation and maintenance and provides a fully enclosed protective space, isolating the fuse from external dust, moisture, and accidental contact, reducing the risk of short circuits or poor contact. The mounting base 2 includes fixing pins 22. The fixing pins 22 extend upwards from the bottom of the mounting base 2 and are symmetrically distributed along the central axis of the mounting base 2. This allows for precise positioning and installation of the spring contact 1 and the mounting base 2, ensuring consistent installation position of the spring contact 1, preventing assembly deviations from affecting contact performance, and improving the overall assembly efficiency. For details, please refer to the appendix. Figure 2 The spring 1 includes a spring arm 11, raised contacts 12, and reinforcing ribs 13. The spring arm 11 extends in an arc shape, utilizing the elastic deformation characteristics of the arc structure to adapt to the installation requirements of fuses of different specifications. After the fuse is inserted, it generates a continuous and uniform clamping force to maintain a stable contact state. Three raised contacts 12 are evenly arranged along the length of the spring arm 11 on its outer surface. The central axis of each raised contact 12 is parallel to the curvature center axis of the arc-shaped spring arm 11, and the distance between two adjacent raised contacts 12 is equal. This three-point contact design increases the contact area with the fuse pin, reduces contact resistance, reduces heat loss during energization, and disperses contact pressure to avoid wear and tear caused by single-point contact. To prevent contact failure; one end of the spring arm 11 is integrally formed with a barb, the tip of the barb facing away from the concave surface of the spring arm 11, which can form a limiting fixation after the fuse is installed in place, preventing the fuse from falling off or shifting due to bumps and vibrations during vehicle operation, and improving the vibration resistance of the structure; the reinforcing rib 13 is set at the end of the spring arm 11 away from the barb, which can enhance the structural strength of the spring arm 11, avoid fatigue damage caused by long-term elastic deformation, and extend the service life of the spring piece 1. The reinforcing rib 13 is provided with two through holes, and the diameter of the fixing pin 22 matches its hole diameter. Through the precise insertion of the fixing pin 22 into the through hole, the spring piece 1 and the mounting base 2 are firmly connected, while ensuring that the elastic movement space of the spring arm 11 is not restricted. For details, please refer to the appendix. Figure 3The mounting base 2 includes a mounting base 21, an insertion hole 23, an annular groove 24, and a sealing ring 25. The mounting base 21 is located on the top of the mounting base 2, serving as the mounting and bearing base for the spring piece 1 and providing a stable support plane for the spring piece 1. The mounting base 21 has an insertion hole 23 that penetrates through the mounting base 2, which is adapted to the insertion and installation of the fuse pin, guiding the fuse to accurately align with the contact area of ​​the spring piece 1, thus improving the ease of installation. The mounting base 21 has an annular groove 24 on its outer circumference, and a sealing ring 25 that fits against the inner wall of the protective base 3 is fitted inside the annular groove 24. After the protective base 3 and the mounting base 2 are assembled, the sealing ring 25 can fill the gap between them, forming a sealed protective structure that effectively prevents external moisture and dust from entering the internal contact area, further improving the protective performance and ensuring the stable operation of the bracket in complex automotive environments such as humid and dusty conditions. For details, please refer to the appendix. Figure 4 The protective seat 3 includes a vent 31, an auxiliary component 32, a buffer pad 33, and a dustproof net 34. The protective seat 3 has a box-shaped structure, which can fully cover the contact area between the spring clip 1 and the fuse, preventing damage to the core component from external impacts. Multiple vents 31 are evenly distributed at the bottom of the protective seat 3 to allow internal air circulation and timely dissipation of heat generated during fuse operation, preventing excessively high local temperatures from affecting component performance or causing safety hazards. A buffer pad 33 is provided on the inner bottom of the protective seat 3, which contacts the bottom of the auxiliary component 32, and can absorb vibrations when the vehicle vibrates. The auxiliary component 32 absorbs impact force, reducing collision and wear between the auxiliary component 32 and the protective base 3, while also buffering the impact of vibration on the contact stability between the fuse and the spring 1. The upper end of the auxiliary component 32 extends into the insertion hole 23, which can guide and position the fuse pins, ensuring that the fuse is accurately inserted into the installation position and avoiding installation deviation. A dustproof mesh 34 is fixedly installed inside the vent hole 31 to cover the opening, which can effectively block external dust and debris from entering the interior of the protective base 3 through the vent hole 31, preventing dust from adhering to the contact parts and affecting the conductivity, thus taking into account both heat dissipation and dust prevention functions.

[0015] The specific operation method of this utility model is as follows: During installation, first align the reinforcing rib 13 of the spring piece 1 with the through hole of the mounting base 2 and insert it to fix the spring piece 1 in place. Then, pass the fuse pin through the insertion hole 23 of the mounting base 2 so that it fits against the protruding contact 12 of the spring piece 1. The barb of the spring arm 11 automatically limits the fuse. Then, cover the outside of the spring piece 1 with the protective base 3 and fasten it with the mounting base 2. At this time, the sealing ring 25 fits against the inner wall of the protective base 3 to form a seal. The upper end of the auxiliary part 32 extends into the insertion hole 23 to assist in positioning. During maintenance, the protective base 3 can be removed directly to replace the fuse. The vent 31, together with the dustproof net 34, continuously achieves heat dissipation and dust prevention during use. The buffer pad 33 protects the stability of the components when the vehicle vibrates.

[0016] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A car fuse holder structure, comprising a spring (1), a mounting base (2), and a protective base (3), characterized in that, The spring (1) is positioned above the mounting base (2), and the protective base (3) is positioned outside the spring (1) and detachably connected to the mounting base (2). The mounting base (2) includes a fixing pin (22), and the bottom of the mounting base (2) is provided with an upwardly extending fixing pin (22). The fixing pin (22) is symmetrically distributed along the central axis of the mounting base (2).

2. The automotive fuse holder structure according to claim 1, characterized in that, The spring (1) includes a spring arm (11), raised contacts (12), and reinforcing ribs (13). The spring arm (11) extends in an arc shape. Three raised contacts (12) are evenly arranged on the outer surface of the spring arm (11) along the length direction of the spring arm (11). The central axis of each raised contact (12) is parallel to the curvature center axis of the arc-shaped spring arm (11), and the distance between two adjacent raised contacts (12) is equal. One end of the spring arm (11) is integrally formed with a barb. The tip of the barb faces away from the concave surface of the spring arm (11). The reinforcing ribs (13) are set at the end of the spring arm (11) away from the barb, and the reinforcing ribs (13) are provided with two through holes. The diameter of the fixing pin (22) matches the diameter of its holes.

3. The automotive fuse holder structure according to claim 1, characterized in that, The assembly base (2) includes a mounting base (21), an insertion hole (23), an annular groove (24), and a sealing ring (25). The top of the assembly base (2) is provided with a mounting base (21), and the center of the mounting base (21) is provided with an insertion hole (23) that penetrates the assembly base (2). The outer circumference of the mounting base (21) is provided with an annular groove (24), and the annular groove (24) is fitted with a sealing ring (25) that fits against the inner wall of the protective base (3).

4. The automotive fuse holder structure according to claim 1, characterized in that, The protective seat (3) includes a vent (31), an auxiliary component (32), a buffer pad (33), and a dustproof net (34). The protective seat (3) is a box-shaped structure. Multiple vents (31) are evenly provided at the bottom of the protective seat (3). A buffer pad (33) is provided on the bottom inner side of the protective seat (3) to contact the bottom of the auxiliary component (32). The upper end of the auxiliary component (32) extends into the insertion hole (23). A dustproof net (34) covering the opening is fixedly installed on the inner side of the vent (31).

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