Spliced fuse
By designing splicing protrusions, grooves, and fixing latches on the fuse, stable splicing and quick disassembly and replacement of the fuse are achieved, solving the problem of difficult disassembly when a single fuse is damaged in the existing technology and improving maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI RENRENXIN ELECTRONIC TECH CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-01
AI Technical Summary
Existing modular fuses cannot be quickly disassembled and replaced when a single fuse fails, affecting maintenance speed.
A modular fuse was designed, which uses a structure including a splicing convex plate and groove, a fixing latch, a connecting pin, a compression spring, and a release button to achieve stable splicing and quick disassembly of the fuse body. Through the tight fit between the splicing plate and the slot, the rotational connection of the fixing latch and the engagement of the spring, combined with the unlocking operation of the connecting rod and the pressure rod, individual disassembly and replacement can be achieved.
It improves the stability of fuse splicing and the ease of disassembly, ensures the firmness of the spliced parts, and facilitates the individual disassembly of damaged fuses, thereby improving maintenance efficiency.
Smart Images

Figure CN224190925U_ABST
Abstract
Description
A type of splicing fuse Technical Field
[0001] This utility model relates to the field of fuse technology, and in particular to a splicing type fuse. Background Technology
[0002] A fuse is an electrical device that uses a metal conductor as a fusible element connected in series in a circuit. When an overload or short-circuit current passes through the fusible element, it melts due to its own heating, thereby breaking the circuit. Fuses are simple in structure, easy to use, and widely used as protective devices in power systems, various electrical equipment, and household appliances.
[0003] A search revealed that the document with publication number "CN218039082U" states that "this utility model relates to the field of fuse technology and discloses a fuse with splicing function, including a fuse housing. The fuse housing has a rounded corner hole on one side and a threaded hole on the other side. There are also two types of fuse housings: one with rounded corner holes on both sides and the other with threaded holes on both sides. A plug is fitted into the rounded corner hole, and a snap-fit component is fitted into the threaded hole." In use, three or more fuses can be spliced in series by installing the snap-fit component in the threaded hole, thus easily completing the assembly and splicing of the fuse.
[0004] However, during the use of the assembled device, if a single fuse fails and needs repair, it is impossible to disassemble and replace the single damaged fuse. Instead, the entire assembled set of fuses must be disassembled, which affects the speed of repair.
[0005] Therefore, we provide a modular fuse to solve the above problems. Summary of the Invention
[0006] To overcome the above deficiencies, this utility model provides a splicing type fuse, which aims to solve the problems mentioned above.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A splicing type fuse includes a fuse body, splicing components are provided on both sides of the fuse body, the splicing components include a splicing protrusion provided at the right end of the fuse body, a splicing groove is provided at the left end of the fuse body, a fixing buckle is provided inside the splicing protrusion, and a mating groove is provided on the surface of the splicing groove.
[0009] As a further description of the above technical solution:
[0010] The splicing convex plate is provided with splicing clips on both sides, and the splicing groove is provided with splicing slots on both sides, and the splicing clips and splicing slots fit tightly together.
[0011] As a further description of the above technical solution:
[0012] A connecting pin is installed at the bottom of the fixing latch, and the connecting pin is rotatably connected to the fuse body. A compression spring is installed on one side of the fixing latch.
[0013] As a further description of the above technical solution:
[0014] A connecting rod is provided on the upper side of the fixed latch, and a release button is welded to the top of the connecting rod. The release button protrudes from the upper surface of the fuse body, and a pressure rod is provided at the bottom of the connecting rod.
[0015] As a further description of the above technical solution:
[0016] The end of the pressure rod is cylindrical, and one side of the upper surface of the fixing buckle is inclined. The pressure rod is in contact with the inclined surface of the fixing buckle.
[0017] As a further description of the above technical solution:
[0018] A support pad is provided at the bottom of the splicing groove. The support pad is made of elastic rubber, and rubber pads are provided on the surface of the splicing groove.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] By setting up splicing components, the splicing protrusions and grooves facilitate the splicing of fuse bodies. At the same time, the splicing clamps and slots further increase the stability of the splicing and prevent loosening after splicing. In addition, the fixing latches and mating grooves facilitate the limiting and fixing of the spliced fuse bodies, increasing the firmness of the spliced parts.
[0021] The connecting pin facilitates the rotation of the locking latch, while the compression spring increases the stability of the engagement when the locking latch rotates and engages with the mating groove, preventing the locking latch from shaking. The connecting rod, release button, and pressure rod facilitate the unlocking of the locking latch, allowing for quick disassembly and replacement of fuses that require individual disassembly and maintenance, thus improving the convenience of use and maintenance. Attached Figure Description
[0022] Figure 1 is a schematic diagram of the overall appearance structure of this utility model;
[0023] Figure 2 is a schematic diagram of the overall splicing structure of this utility model;
[0024] Figure 3 is a schematic diagram of the left side structure of the fuse body of this utility model;
[0025] Figure 4 is a schematic diagram of the front slope structure of the fuse body of this utility model;
[0026] Figure 5 is an enlarged structural schematic diagram of point A in Figure 4 of this utility model.
[0027] The following are the labeling elements in the diagram: 1. Fuse body; 2. Splicing assembly; 201. Splicing protrusion; 202. Splicing groove; 203. Splicing retaining plate; 204. Splicing slot; 205. Fixing latch; 206. Connecting pin; 207. Compression spring; 208. Connecting groove; 209. Connecting rod; 210. Release button; 211. Pressure rod; 212. Support pad. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Please refer to Figures 1-4. This utility model provides a technical solution: a splicing fuse, including a fuse body 1, splicing components 2 are provided on both sides of the fuse body 1, the splicing component 2 includes a splicing protrusion 201 provided at the right end of the fuse body 1, a splicing groove 202 is provided at the left end of the fuse body 1, a fixing buckle 205 is provided inside the splicing protrusion 201, and a mating groove 208 is provided on the surface of the splicing groove 202.
[0030] Furthermore, splicing plates 203 are provided on both sides of the splicing protrusion 201, and splicing slots 204 are provided on both sides of the splicing groove 202. The splicing plates 203 and the splicing slots 204 fit tightly together. When the fuse body 1 needs to be spliced, simply place the splicing protrusion 201 on the upper side of the splicing groove 202, and then insert the splicing plates 203 into the splicing slots 204 to ensure the stability of the splicing and achieve rapid splicing.
[0031] Furthermore, a connecting pin 206 is installed at the bottom of the fixing latch 205. The connecting pin 206 is rotatably connected to the fuse body 1. A compression spring 207 is installed on one side of the fixing latch 205. When the splicing protrusion 201 is fully inserted into the splicing groove 202, the fixing latch 205 will automatically spring into the docking groove 208, firmly locking the two fuse bodies 1 together and ensuring the stability of the fuse bodies 1 after splicing.
[0032] Furthermore, a connecting rod 209 is provided on the upper side of the fixed latch 205, and a release button 210 is welded to the top of the connecting rod 209. The release button 210 protrudes from the upper surface of the fuse body 1, and a pressure rod 211 is provided at the bottom of the connecting rod 209. When disassembly is required, simply press the release button 210, and the pressure rod 211 will be pushed by the connecting rod 209, so that the end of the pressure rod 211 presses against the fixed latch 205. The fixed latch 205 will then rotate around the connecting pin 206, thereby disengaging from the mating groove 208 and achieving quick disassembly.
[0033] Furthermore, the end of the pressure rod 211 is cylindrical, and one side of the upper surface of the fixing buckle 205 is inclined. The pressure rod 211 fits against the inclined surface of the fixing buckle 205. By setting the inclined structure, the fixing buckle 205 changes the direction of force when it is subjected to pressure, thereby better releasing the fixing buckle 205.
[0034] Furthermore, a support pad 212 is provided at the bottom of the splicing groove 202. The support pad 212 is made of elastic rubber. Rubber pads are provided on the surface of the splicing groove 202. After splicing, the splicing protrusion 201 is supported upward by the elastic rubber support pad 212, so that the fixing buckle 205 can be stably inserted into the docking groove 208. When disassembling the spliced fuse body 1, the fuse body 1 can be pressed downward to a certain extent, so that the fixing buckle 205 has enough space to retract, which facilitates the disassembly of the spliced fuse body 1.
[0035] Working principle: When the device is moved to the working position and fuse bodies 1 need to be spliced, firstly, align the splicing protrusion 201 of one fuse body 1 with the splicing groove 202 of the other fuse body 1, and slowly push it in. At this time, the splicing clamping plate 203 will slide along the edge of the splicing groove 202 until it is fully inserted into the splicing slot 204, forming a preliminary fixation. As the splicing protrusion 201 goes deeper, the fixing latch 205 automatically springs into the mating slot 20 under the action of the compression spring 207. In step 8, the two fuse bodies 1 are securely locked. During use, if it is necessary to disassemble a fuse body 1, simply press the release button 210. The release button 210 pushes the pressure rod 211 through the connecting rod 209. The cylindrical end of the pressure rod 211 presses the inclined surface of the fixing latch 205, causing the fixing latch 205 to rotate around the connecting pin 206 and disengage from the mating groove 208. This allows a single fuse body 1 to be disassembled and replaced, thus completing the use process of a splicing fuse.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A splicing type fuse, comprising a fuse body (1), characterized in that: The fuse body (1) is provided with splicing components (2) on both sides. The splicing components (2) include a splicing protrusion (201) provided at the right end of the fuse body (1), a splicing groove (202) provided at the left end of the fuse body (1), a fixing buckle (205) provided inside the splicing protrusion (201), and a mating groove (208) provided on the surface of the splicing groove (202).
2. A splicing fuse according to claim 1, characterized in that The width of the splicing convex plate (201) is the same as the width of the splicing groove (202). Splicing plates (203) are provided on both sides of the splicing convex plate (201), and splicing slots (204) are provided on both sides of the splicing groove (202). The splicing plates (203) and splicing slots (204) fit tightly together.
3. A splicing type fuse according to claim 1, characterized in that, A connecting pin (206) is installed at the bottom of the fixed latch (205), and the connecting pin (206) is rotatably connected to the fuse body (1). A compression spring (207) is installed on one side of the fixed latch (205).
4. A splicing fuse according to claim 1, wherein A connecting rod (209) is provided on the upper side of the fixed latch (205). A release button (210) is welded to the top of the connecting rod (209). The release button (210) protrudes from the upper surface of the fuse body (1). A pressure rod (211) is provided at the bottom of the connecting rod (209).
5. A splicing type fuse according to claim 4, characterized in that, The end of the pressure rod (211) is cylindrical, and one side of the upper surface of the fixing buckle (205) is inclined. The pressure rod (211) is in contact with the inclined surface of the fixing buckle (205).
6. A splicing fuse according to claim 1, wherein The bottom end of the splicing groove (202) is provided with a support pad (212), the support pad (212) is made of elastic rubber material, and the surface of the splicing groove (202) is provided with rubber pads.
Citation Information
Patent Citations
Fuse with splicing function
CN218039082U