A quick action structure for a fuse body

Abstract

The utility model discloses a kind of quick action structure of fuse body, it is related to fuse body technical field, including fusing subassembly and support frame assembly, the outside of fusing subassembly is provided with support frame assembly, and the upper end of support frame assembly is installed with upper adapter seat, and the lower end of upper adapter seat is installed with lower adapter seat, and fusing subassembly includes load fusing sleeve, arc extinguishing tube, fuse body, melt component, pressure relief cap and terminal.The quick action structure of fuse body, by the setting of fusing subassembly itself structure, on the one hand, while not affecting internal fuse body, melt component normal operation, can be connected between structure using load fusing sleeve and pressure relief cap, to realize the effect of convenient internal structure maintenance, in addition, the use of support frame assembly can strengthen the structural strength of entire fusing subassembly, to ensure the service life of device structure, and upper adapter seat and lower adapter seat are convenient for fusing subassembly and insulation structure will be connected combination.

Description

Technical Field

[0001] This utility model relates to the field of fuse technology, specifically a fast-acting fuse structure. Background Technology

[0002] Fast-acting fuses are designed to react quickly when the current in a circuit exceeds a set value. The fuse element melts in a very short time, typically within 0.1 seconds. Fast-acting fuses are widely used in power systems, especially in critical equipment requiring rapid protection, such as generators and transformers. In electronic equipment, fast-acting fuses can quickly disconnect the circuit to prevent damage to equipment due to overload or short circuit, thus protecting the safety of electronic components.

[0003] Conventional fuse quick-acting structures are limited by their fixed structure, making internal maintenance difficult and time-consuming. In addition, their relatively thin structure makes them vulnerable to damage from external factors. Utility Model Content

[0004] The purpose of this invention is to provide a fast-acting structure for a fuse to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fast-acting fuse structure, comprising a fuse assembly and a support frame assembly. The support frame assembly is provided on the outer side of the fuse assembly, and an upper connecting seat is installed at the upper end of the support frame assembly, and a lower connecting seat is installed at the lower end of the upper connecting seat. The fuse assembly includes a fuse-carrying sleeve, an arc-extinguishing tube, a fuse body, a fusible element, a pressure-relieving cap, and a terminal block. An arc-extinguishing tube is provided inside the fuse-carrying sleeve, and the fuse body is provided in the middle of the arc-extinguishing tube. The upper and lower ends of the fuse body are connected to the fusible element. Pressure-relieving caps are installed at both the upper and lower ends of the fuse-carrying sleeve, and a terminal block is installed on the side of the pressure-relieving cap away from the fuse-carrying sleeve.

[0006] Furthermore, the fusion-carrying sleeve is tightly fitted onto the outer wall surface of the arc-extinguishing tube, and the pressure relief cap is installed on the upper and lower end surfaces of the fusion-carrying sleeve using a sealing structure thread.

[0007] Furthermore, the pressure relief cap and the terminal are welded together, and the end of the molten component away from the main body of the fuse passes through and is welded to the middle of the inside of the terminal.

[0008] Furthermore, the fuse body and the melt component are welded together.

[0009] Furthermore, the support frame assembly includes a combination seat, a support sleeve, a support rod, and a fixing nut. The support sleeve is vertically arranged in the middle of the combination seat, and the support rod is vertically inserted through the four opposite corners of the combination seat. The upper and lower ends of the support rod are equipped with fixing nuts.

[0010] Furthermore, the combined seat and the support sleeve are fixedly connected, and the combined seat and the support sleeve are symmetrically arranged at both ends of the support rod, and the support rod and the fixing nut are threadedly connected.

[0011] Furthermore, the upper connecting seat includes a stabilizing seat, a docking groove, and a connecting frame. The bottom of the stabilizing seat has a docking groove, and the connecting frame is movably installed on one side of the stabilizing seat.

[0012] Furthermore, the inner surface structure of the docking groove matches the outer surface structure of the side near the combined seat and the support sleeve, and the four diagonal corners of the stabilizing seat are provided with holes for the support rod to pass through vertically. The lower connecting seat and the upper connecting seat have the same structure.

[0013] This utility model provides a fast-acting structure for a fuse element, which has the following advantages:

[0014] 1. This utility model incorporates a fusing assembly, in which an arc-extinguishing tube is installed inside the fusible sleeve. This structural design assists in the rapid fusing of the internal fusing component and fusible element, achieving circuit disconnection while simultaneously extinguishing arcs generated by overload. This ensures circuit safety and the overall safety of the device structure. The two sets of pressure relief caps are connected by threads, ensuring both the robustness and structural sealing of the connection between the fusible sleeve and the pressure relief caps. Furthermore, this allows for easy disassembly of the two components, facilitating maintenance and cleaning after fusing of the internal fusing component and fusible element. This ensures the ease of use and flexibility of the device structure.

[0015] 2. This utility model, by setting up a support frame assembly, wherein the entire support frame assembly is connected to both ends of the fusible sleeve through the support sleeve in the middle of the combination seat, and then four sets of support rods are used to vertically penetrate through the four opposite corners of the combination seat, and fixing nuts are screwed to both ends of the support rods to achieve structural combination. By using the above structure, it can provide good structural support for the entire fusible assembly, avoid unnecessary structural deformation of the fusible assembly caused by external forces, thereby affecting the normal use of internal structural components, and ensure the service life of the device structure, as well as the strength and stability of the device structure.

[0016] 3. This utility model features an upper connecting seat and a lower connecting seat installed at the upper and lower ends of the support frame assembly, respectively. The upper and lower connecting seats have identical structures. The stabilizing seat is connected to one end of the fuse assembly and the support frame assembly via a mating groove. Simultaneously, the fuse assembly and the support frame assembly pass through the four opposite corners of the combined seat and the four opposite corners of the stabilizing seat. Then, fixing nuts are used to fix the upper and lower connecting seats to both ends of the fuse assembly and the support frame assembly. Using the above structure, in conjunction with the connecting frame on one side of the stabilizing seat, the entire device can be connected and combined with the insulating terminal, providing good structural support. This ensures stable operation of the device and facilitates disassembly, thus simplifying maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main body of a fast-acting fuse structure according to the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of a fuse assembly with a fast-acting fuse body according to the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of a support frame assembly for a fast-acting fuse structure according to the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the upper connecting seat of the fast-acting fuse structure of this utility model.

[0021] In the diagram: 1. Fuse assembly; 101. Fusible sleeve; 102. Arc extinguishing tube; 103. Main body of fuse; 104. Fusible element; 105. Pressure relief cap; 106. Terminal block; 2. Support frame assembly; 201. Combination seat; 202. Support sleeve; 203. Support rod; 204. Fixing nut; 3. Upper connecting seat; 301. Stabilizing seat; 302. Connecting groove; 303. Connecting frame; 4. Lower connecting seat. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] like Figures 1 to 4As shown, a fast-acting fuse structure includes a fuse assembly 1 and a support frame assembly 2. The support frame assembly 2 is provided on the outer side of the fuse assembly 1, and an upper connecting seat 3 is installed on the upper end of the support frame assembly 2, while a lower connecting seat 4 is installed on the lower end of the upper connecting seat 3. The fuse assembly 1 includes a fuse-carrying sleeve 101, an arc-extinguishing tube 102, a fuse body 103, a fusible element 104, a pressure-relieving cap 105, and a terminal block 106. The arc-extinguishing tube 102 is provided inside the fuse-carrying sleeve 101, and the fuse body 103 is provided in the middle of the arc-extinguishing tube 102. The fusible element 104 is connected to the upper and lower ends of the fuse body 103. Pressure-relieving caps 105 are installed on both the upper and lower ends of the fuse-carrying sleeve 101, and a terminal block 106 is installed on the side of the pressure-relieving cap 105 away from the fuse-carrying sleeve 101. 1. The pressure relief cap 105 is tightly fitted onto the outer wall surface of the arc-extinguishing tube 102 and is threadedly installed on the upper and lower ends of the fusion-carrying sleeve 101 with a sealing structure. The pressure relief cap 105 and the terminal 106 are welded together. The end of the fusion component 104 away from the fuse body 103 passes through and is welded to the middle of the inside of the terminal 106. The fuse body 103 and the fusion component 104 are welded together. The two sets of pressure relief caps 105 are connected by threads. On the one hand, this can ensure the firmness and structural sealing of the connection between the fusion-carrying sleeve 101 and the pressure relief cap 105. On the other hand, it is easy to disassemble the two structures so that after the internal fuse body 103 and the fusion component 104 melt, structural maintenance and cleaning can be carried out.

[0024] like Figures 1 to 4 As shown, the support frame assembly 2 includes a combination seat 201, a support sleeve 202, a support rod 203, and a fixing nut 204. The support sleeve 202 is vertically arranged in the middle of the combination seat 201, and the support rod 203 is vertically inserted through the four opposite corners of the combination seat 201. The upper and lower ends of the support rod 203 are equipped with fixing nuts 204. The combination seat 201 and the support sleeve 202 are fixedly connected. The combination seat 201 and the support sleeve 202 are symmetrically arranged at the two ends of the support rod 203. The support rod 203 and the fixing nut 204 are threadedly connected. The entire support frame assembly 2 is connected to the two ends of the fusion sleeve 101 through the support sleeve 202 in the middle of the combination seat 201. Then, four sets of support rods 203 are vertically inserted through the four opposite corners of the combination seat 201 and screwed onto the two ends of the support rods 203 with fixing nuts 204.

[0025] like Figures 1 to 4As shown, the upper connecting seat 3 includes a stabilizing seat 301, a docking groove 302, and a connecting frame 303. The bottom of the stabilizing seat 301 has a docking groove 302, and the connecting frame 303 is movably installed on one side of the stabilizing seat 301. The inner surface structure of the docking groove 302 matches the outer surface structure of the side near the combined seat 201 and the support sleeve 202. The stabilizing seat 301 has holes at its four opposite corners for the support rod 203 to pass through vertically. The lower connecting seat 4 has the same structure as the upper connecting seat 3. The stabilizing seat 301 is sleeved onto one end of the fuse assembly 1 and the support frame assembly 2 using the docking groove 302. At the same time, the fuse assembly 1 and the support frame assembly 2 pass through the four opposite corners of the combined seat 201 and the four opposite corners of the stabilizing seat 301. Then, the fixing nut 204 is used to fix the upper connecting seat 3 and the lower connecting seat 4 to the two ends of the fuse assembly 1 and the support frame assembly 2.

[0026] In summary, as Figures 1 to 4 As shown, in use, the quick-acting structure of the fuse firstly places the complete fuse body 103 vertically inside the fuse-carrying sleeve 101 with the arc-extinguishing tube 102 inside by means of the fuse component 104. Then, the fuse components 104 at both ends of the fuse body 103 are connected to the two sets of pressure relief caps 105 and the fuse component 104 is inserted into the interior of the terminal block 106 to ensure that the terminal block 106 is connected to the external circuit in the future.

[0027] Then, the two sets of pressure relief caps 105 are screwed onto the two ends of the fusion sleeve 101 to ensure the structural stability of the device. Then, two sets of combination seats 201 with support sleeves 202 are used and respectively fitted onto the two ends of the fusion assembly 1. At the same time, four sets of support rods 203 are used and installed one by one through the four opposite corners of the combination seat 201.

[0028] Next, the upper connecting seat 3 and the lower connecting seat 4 are connected to the combination seat 201 with the support sleeve 202 by using the docking groove 302 on one side of the stabilizing seat 301. At the same time, the support rod 203 is inserted into the hole structure at the four opposite corners of the stabilizing seat 301, and the fixing nut 204 is screwed to both ends of the fuse body 103, thereby completing the combination connection between the fuse assembly 1, the support frame assembly 2, the upper connecting seat 3 and the lower connecting seat 4. Then, the connecting frame 303 is installed on one side of the connecting frame 303, thereby providing a good assembly structure and protective structure for the entire device.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A fast-acting fuse structure, comprising a fuse assembly (1) and a support frame assembly (2), characterized in that: The fuse assembly (1) is provided with a support frame assembly (2) on its outer side, and an upper connecting seat (3) is installed on the upper end of the support frame assembly (2), and a lower connecting seat (4) is installed on the lower end of the upper connecting seat (3). The fuse assembly (1) includes a fuse-carrying sleeve (101), an arc-extinguishing tube (102), a fuse body (103), a fusible element (104), a pressure relief cap (105), and a terminal block (106). The arc-extinguishing tube (102) is provided inside the fuse-carrying sleeve (101), and the fuse body (103) is provided in the middle of the arc-extinguishing tube (102). The fusible element (104) is connected to the upper and lower ends of the fuse body (103). The pressure relief cap (105) is installed on both the upper and lower ends of the fuse-carrying sleeve (101), and a terminal block (106) is installed on the side of the pressure relief cap (105) away from the fuse-carrying sleeve (101).

2. The fast-acting fuse structure according to claim 1, characterized in that, The fusion sleeve (101) is tightly fitted onto the outer wall surface of the arc extinguishing tube (102), and the pressure relief cap (105) is threadedly installed on the upper and lower ends of the fusion sleeve (101) with a sealing structure.

3. The fast-acting fuse structure according to claim 1, characterized in that, The pressure relief cap (105) and the terminal block (106) are welded together, and the end of the fusible component (104) away from the fuse body (103) passes through and is welded to the middle of the interior of the terminal block (106).

4. The fast-acting fuse structure according to claim 1, characterized in that, The fuse body (103) and the melt component (104) are welded together.

5. The fast-acting fuse structure according to claim 1, characterized in that, The support frame assembly (2) includes a combination seat (201), a support sleeve (202), a support rod (203), and a fixing nut (204). The support sleeve (202) is vertically arranged in the middle of the combination seat (201), and the support rod (203) is vertically inserted through the four opposite corners of the combination seat (201). The fixing nut (204) is installed at the upper and lower ends of the support rod (203).

6. The fast-acting fuse structure according to claim 5, characterized in that, The combination seat (201) and the support sleeve (202) are fixedly connected, and the combination seat (201) and the support sleeve (202) are symmetrically arranged at both ends of the support rod (203), and the support rod (203) and the fixing nut (204) are threadedly connected.

7. The fast-acting fuse structure according to claim 5, characterized in that, The upper connecting seat (3) includes a stabilizing seat (301), a docking groove (302) and a connecting frame (303). The bottom of the stabilizing seat (301) is provided with a docking groove (302), and the connecting frame (303) is movably installed on one side of the stabilizing seat (301).

8. The fast-acting fuse structure according to claim 7, characterized in that, The inner surface structure of the docking groove (302) matches the outer surface structure of the side near the combination seat (201) and the support sleeve (202), and the four diagonal corners of the stabilizing seat (301) are provided with holes for the support rod (203) to pass through vertically. The lower connecting seat (4) and the upper connecting seat (3) have the same structure.

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