Automobile fuse convenient to use

By designing the connection components of automotive fuses, including fuse bars and fuse rings, the problem of poor buffering capacity of electric vehicle control circuit fuses has been solved, achieving higher safety and convenient installation and removal.

CN223539550UActive Publication Date: 2025-11-11ANJIETAI (SUZHOU) ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423107793.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-11-11
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

Existing electric vehicle control circuits have poor buffering capacity, lack of safety, and insufficient protective enclosure, posing potential safety hazards.

Method used

An automotive fuse is designed, comprising a first metal body and a second metal body connected by a connecting assembly. The connecting assembly includes a fusible strip and a fusible ring. The width of the fusible ring is smaller than that of the fusible strip. The fusible ring melts within the upper and lower housings to provide protection and is fixed by screws and snap-fit ​​methods.

Benefits of technology

The fuse's buffering capacity has been improved, enhancing safety, preventing external environmental interference, and making installation and disassembly more convenient.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile fuse convenient to use, which comprises a first metal body and a second metal body, both the first metal body and the second metal body are provided with mounting holes, a connecting assembly is arranged between the first metal body and the second metal body, and the connecting assembly is convenient for the fusing use of the automobile fuse. A fusing strip and a fusing ring are arranged between metal bodies, the width of the fusing ring is smaller than that of the fusing strip, the fusing ring is fused at first, the fusing strip and the fusing ring are closed in an upper shell and a lower shell to be fused, the anti-buffering capacity is high, safety is good, fusing cannot be disturbed by the external environment, and the fusing effect is good. The upper shell and the lower shell can be connected through bolts and can also be stably clamped, so that the installation stability of the upper shell and the lower shell and the protection performance of the fusing strip and the fusing ring are improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive fuses, specifically a convenient automotive fuse. Background Technology

[0002] Electric vehicles require a lot of energy to propel themselves forward, and their operating current is very high, generally between 200A and 300A. If an abnormality occurs, an even larger instantaneous current will be generated, which can melt the control circuit of the electric vehicle and even cause a fire. In the current technology, the fuses used with the control circuit of electric vehicles have poor buffering capacity, lack safety, and are not sufficiently sealed and protected, which poses a hidden danger to electric vehicles and has become one of the important factors affecting the safety of electric vehicles.

[0003] Therefore, it is necessary to propose a convenient automotive fuse. Utility Model Content

[0004] The purpose of this invention is to provide a convenient automotive fuse to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A convenient automotive fuse includes a first metal body and a second metal body. Both the first metal body and the second metal body are provided with mounting holes. A connecting component is provided between the first metal body and the second metal body. The connecting component facilitates the use of the automotive fuse for melting.

[0007] The connecting assembly includes a fusible strip and a fusible ring. The fusible strip is fixedly connected between the first metal body and the second metal body, and the fusible ring is fixedly disposed on the fusible strip.

[0008] Preferably, the width of the fusible ring is smaller than the width of the fusible strip.

[0009] Preferably, the first metal body and the second metal body are each provided with a first connecting hole, the top of the first metal body and the second metal body are provided with an upper shell, the bottom of the first metal body and the second metal body are provided with a lower shell, the two ends of the upper shell are each provided with a second connecting hole, the two ends of the lower shell are each provided with a third connecting hole, and the upper shell and the lower shell are connected by screws.

[0010] Preferably, the connecting assembly further includes a connecting plate, a first locking block, and a second locking block. The first locking block is fixedly installed on the inner side of the lower housing, the connecting plate is fixedly installed on one end of the upper housing, and the second locking block is fixedly installed on the inner side of the connecting plate. The first locking block and the second locking block are respectively locked between the first metal body and the second metal body.

[0011] Preferably, the inner wall of the connecting plate is provided with an insertion port, and an insertion plate is fixedly installed at one end of the lower housing, the insertion plate being inserted into the insertion port.

[0012] Preferably, a support rod is fixedly installed at the top of the other end of the lower housing, and a retaining strip is fixedly installed on the inner side of the support rod. A retaining groove is opened at one end of the upper housing, and the retaining strip is inserted into the retaining groove.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0014] Beneficial effects:

[0015] By setting fusible strips and fusible rings between the metal bodies, with the width of the fusible rings being smaller than the width of the fusible strips, the fusible rings fuse first. The fusible strips and fusible rings then fuse within the upper and lower housings, providing strong anti-buffering capabilities, good safety, and preventing fussing due to external environmental interference. The upper and lower housings can be connected not only by bolts but also by stable snap-fit ​​connections, increasing the installation stability of the upper and lower housings and the protection of the fusible strips and fusible rings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the connection between the fuse strip and the fuse ring in a convenient automotive fuse.

[0017] Figure 2 A schematic diagram of the connection between the upper and lower housings in a convenient automotive fuse. Figure 1 ;

[0018] Figure 3 This is a structural diagram of the upper and lower housings in a convenient automotive fuse.

[0019] Figure 4 A schematic diagram of the connection between the upper and lower housings in a convenient automotive fuse. Figure 2 ;

[0020] Figure 5 This is a schematic diagram showing the connection between the lower housing and the first and second metal bodies in a convenient automotive fuse.

[0021] Figure 6 A structural diagram of the lower housing of a convenient automotive fuse;

[0022] Figure 7 This is a structural diagram of the upper housing in a convenient automotive fuse.

[0023] In the figure: 1. First metal body; 11. Second metal body; 12. Mounting hole; 2. Connecting assembly; 21. Fusible strip; 22. Fusible ring; 23. First connecting hole; 24. Upper housing; 241. Connecting plate; 25. Lower housing; 26. Second connecting hole; 261. Third connecting hole; 27. First locking block; 271. Second locking block; 28. Insert plate; 281. Insertion port; 29. ​​Support rod; 291. Locking strip; 292. Locking groove. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] Example 1: As Figures 1-3 ;

[0026] A convenient automotive fuse includes a first metal body 1 and a second metal body 11, which are metal conductors of the automotive fuse. Both the first metal body 1 and the second metal body 11 are provided with mounting holes 12, through which the automotive fuse is connected to an external circuit. A connecting component 2 is provided between the first metal body 1 and the second metal body 11 to facilitate the use of the automotive fuse.

[0027] The connecting assembly 2 includes a fuse strip 21 and a fuse ring 22. The fuse strip 21 is fixedly connected between the first metal body 1 and the second metal body 11. The fuse ring 22 is fixedly mounted on the fuse strip 21. The width of the fuse ring 22 is smaller than the width of the fuse strip 21. The fuse strip 21 is enclosed between the upper housing 24 and the lower housing 25. When an overcurrent or short circuit occurs in the automotive circuit, the fuse strip 21 and the fuse ring 22 melt. Since the fuse ring 22 is divided into two circuits and its width is smaller than that of the fuse strip 21, the fuse ring 22 melts first, thus protecting the circuit. First connecting holes 23 are provided on both the first metal body 1 and the second metal body 11. The upper housing 24 is located on the top of the first metal body 1 and the second metal body 11. The bottom of the metal body 11 is provided with a lower housing 25, and the upper housing 24 is provided with a second connecting hole 26 at both ends. After the upper housing 24 and the lower housing 25 are snapped together, the upper housing 24 provides closed protection for the top of the fusible strip 21 and the fusible ring 22, and the lower housing 25 provides closed protection for the bottom of the fusible strip 21 and the fusible ring 22. The lower housing 25 is provided with a third connecting hole 261 at both ends. The first connecting hole 23, the second connecting hole 26 and the third connecting hole 261 are all used for connecting bolts. The upper housing 24 and the lower housing 25 are connected by screws. After the upper housing 24 and the lower housing 25 are snapped together, the screws are connected in the first connecting hole 23, the second connecting hole 26 and the third connecting hole 261 to fix the upper housing 24 and the lower housing 25 to the first metal body 1 and the second metal body 11.

[0028] Example 2: As Figures 4-7 ;

[0029] A convenient automotive fuse includes a first metal body 1 and a second metal body 11. The first metal body 1 and the second metal body 11 are metal conductors of the automotive fuse. Mounting holes 12 are provided on both the first metal body 1 and the second metal body 11. The automotive fuse is connected to an external circuit through the mounting holes 12.

[0030] Furthermore, the connecting assembly 2 also includes a connecting plate 241, a first locking block 27, and a second locking block 271. The upper housing 24 is first locked onto the top of the first metal body 1 and the second metal body 11, and the second locking block 271 is fitted into the gap between the first metal body 1 and the second metal body 11. The lower housing 25 is then locked onto the bottom of the first metal body 1 and the second metal body 11, so that the first locking block 27 is fitted into the gap between the first metal body 1 and the second metal body 11. Figure 5As shown, the first locking block 27 is fixedly installed on the inner side of the lower housing 25. After the first locking block 27 and the second locking block 271 are engaged, the upper housing 24 and the lower housing 25 are positioned respectively. The connecting plate 241 is fixedly installed on one end of the upper housing 24. The connecting plate 241 is used to support the installation of the second locking block 271. The second locking block 271 is fixedly installed on the inner side of the connecting plate 241. The first locking block 27 and the second locking block 271 are respectively engaged between the first metal body 1 and the second metal body 11. The inner wall of the connecting plate 241 has an insertion port 281, which is used for the insertion of the insertion plate 28. The insertion plate 28 is fixedly installed on one end of the lower housing 25. Inserted into the socket 281, it is used to connect one end of the lower housing 25 and the upper housing 24. The support rod 29 is fixedly installed on the top of the other end of the lower housing 25. The retaining strip 291 is fixedly installed on the inner side of the support rod 29. One end of the upper housing 24 has a retaining groove 292. The retaining strip 291 is inserted into the retaining groove 292. Since both the upper housing 24 and the lower housing 25 are made of plastic, one end of the lower housing 25 can be bent. After the insert plate 28 is inserted into the socket 281, the other end of the lower housing 25 is bent so that the retaining strip 291 can be inserted into the retaining groove 292. This makes it easier to connect and disassemble the upper housing 24 and the lower housing 25 without the need to install multiple screws.

[0031] The working principle of this utility model is as follows: An upper shell 24 is provided on the top of the first metal body 1 and the second metal body 11, and a lower shell 25 is provided at the bottom of the first metal body 1 and the second metal body 11. After the upper shell 24 and the lower shell 25 are snapped together, screws are connected in the first connecting hole 23, the second connecting hole 26 and the third connecting hole 261 to fix the upper shell 24 and the lower shell 25 to the first metal body 1 and the second metal body 11. The upper shell 24 provides closed protection for the top of the fuse strip 21 and the fuse ring 22, and the lower shell 25 provides closed protection for the bottom of the fuse strip 21 and the fuse ring 22. The width of the fuse ring 22 is smaller than the width of the fuse strip 21. The fuse ring 22 is divided into two circuits. When an overcurrent or short circuit occurs in the automotive circuit, the fuse ring 22 melts first, thus protecting the circuit. The fuse strip 21 and the fuse ring 22 are closed and protected by melting between the upper shell 24 and the lower shell 25 to prevent interference from the external environment.

[0032] Another way to connect the upper housing 24 and the lower housing 25 is to first snap the upper housing 24 onto the top of the first metal body 1 and the second metal body 11, and then snap the second snap block 271 into the gap between the first metal body 1 and the second metal body 11. Then, insert the insert plate 28 of the lower housing 25 into the insert 281, and then bend the other end of the lower housing 25 so that the snap strip 291 can be snapped into the snap slot 292. At the same time, the first snap block 27 will snap into the gap between the first metal body 1 and the second metal body 11, and the lower housing 25 will snap onto the bottom of the first metal body 1 and the second metal body 11. This makes it easier to connect and disassemble the upper housing 24 and the lower housing 25 without the need to install multiple screws.

[0033] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A user-friendly automotive fuse, comprising a first metal body (1) and a second metal body (11), wherein both the first metal body (1) and the second metal body (11) are provided with mounting holes (12), characterized in that: A connecting component (2) is provided between the first metal body (1) and the second metal body (11), and the connecting component (2) facilitates the use of automotive fuses for melting. The connecting component (2) includes a fusible strip (21) and a fusible ring (22). The fusible strip (21) is fixedly connected between the first metal body (1) and the second metal body (11), and the fusible ring (22) is fixedly disposed on the fusible strip (21).

2. The convenient automotive fuse according to claim 1, characterized in that: The width of the fusible ring (22) is smaller than the width of the fusible strip (21).

3. The convenient automotive fuse according to claim 1, characterized in that: The first metal body (1) and the second metal body (11) are each provided with a first connecting hole (23). The top of the first metal body (1) and the second metal body (11) is provided with an upper shell (24). The bottom of the first metal body (1) and the second metal body (11) is provided with a lower shell (25). The upper shell (24) is provided with a second connecting hole (26) at both ends. The lower shell (25) is provided with a third connecting hole (261) at both ends. The upper shell (24) and the lower shell (25) are connected by screws.

4. The convenient automotive fuse according to claim 1, characterized in that: The connecting assembly (2) further includes a connecting plate (241), a first locking block (27) and a second locking block (271). The first locking block (27) is fixedly installed on the inner side of the lower housing (25). The connecting plate (241) is fixedly installed on one end of the upper housing (24). The second locking block (271) is fixedly installed on the inner side of the connecting plate (241). The first locking block (27) and the second locking block (271) are respectively locked between the first metal body (1) and the second metal body (11).

5. A convenient automotive fuse according to claim 4, characterized in that: The inner wall of the connecting plate (241) is provided with a socket (281), and a plug plate (28) is fixedly installed at one end of the lower housing (25), and the plug plate (28) is inserted into the socket (281).

6. The convenient automotive fuse according to claim 4, characterized in that: A support rod (29) is fixedly installed at the top of the other end of the lower housing (25). A clip (291) is fixedly installed on the inner side of the support rod (29). A slot (292) is opened at one end of the upper housing (24). The clip (291) is inserted into the slot (292).