High-voltage fuse assembly
By designing the reinforcement frame and limit structure in the high-voltage fuse assembly, the poor contact problem caused by vibration of the fuse end cap is solved, and more stable connection and extended service life is achieved.
Patent Information
- Application Number
- CN202421146478.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-24
AI Technical Summary
When used in existing high-voltage fuse components, the end cap of the fuse pipe is easily moved up and down or rotated due to external factors such as vibration, resulting in poor contact, and the clamping bracket may be too tight or too loose, affecting the stability of the connection.
A high-voltage fuse assembly including a melt pipe, a melt core, a melt pipe end cover and a reinforcement frame is designed. The melt pipe end cover has an end cover socket, a clamping part and a stopper, and the clamping part of the bracket is provided with a limit slot. and raised, reinforcement frames are used to support and prevent loosening, ensuring good contact.
Through the support and limit structure of the reinforcement frame, the loosening and rotation of the melt pipe clamping bracket is effectively prevented, ensuring good contact and extending service life.
Smart Images
Figure CN222320168U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a high-voltage fuse assembly. Background Art
[0002] High-voltage fuses are protective devices used to protect electrical equipment from overload and short-circuit current damage. Most existing high-voltage fuses use an alloy fuse installed in an arc-extinguishing tube. The fuse is prone to produce arc flames when it melts. Traditional arc-extinguishing tubes are made of arc-extinguishing materials, and the purpose of extinguishing the arc is achieved through arc-extinguishing materials. High-voltage fuse assemblies generally include a fuse tube, a fuse, a fuse tube end cap provided at both ends of the fuse tube, and an end cap clamping bracket for connecting the fuse tube end cap. The following problems are found in the actual use of existing high-voltage fuse assemblies: 1. After the fuse tube end cap is clamped into the end cap clamping bracket, it can still move up and down and rotate slightly due to external factors such as vibration, which easily leads to poor contact at the connection, making it more susceptible to damage; 2. The fuse tube end cap is either too tight and very difficult to clamp into the end cap clamping bracket, or too loose and easy to cause poor contact; In view of the above problems, the existing high-voltage fuse assembly is improved and optimized. Utility Model Content
[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a high-voltage fuse assembly with reliable connection.
[0004] The technical solution adopted by the utility model high-voltage fuse assembly: includes a fusion tube, a fusion core, a fusion tube end cap sleeved at both ends of the fusion tube, and a fusion tube clamping bracket, characterized in that it also includes a reinforcement frame, the fusion tube end cap includes an end cap sleeve portion, an end cap clamping portion and an end cap stop portion, the end cap sleeve portion is provided with an end cap docking hole docking with the fusion tube, the end cap clamping portion is provided with a transversely arranged end cap limiting groove, the fusion tube clamping bracket includes a bracket mounting plate and bracket docking portions provided at both ends of the bracket mounting plate, the bracket docking portion is provided with a vertically arranged bracket transition portion, a bracket clamping portion for clamping the end cap clamping portion, and a vertically arranged bracket upper limit portion in sequence from bottom to top, the inner wall of the bracket clamping portion is provided with a transversely arranged bracket clamping protrusion corresponding to the end cap limiting groove;
[0005] The reinforcement frame includes a reinforcement frame mounting plate disposed below the bracket mounting plate and a reinforcement frame docking portion wrapped outside the bracket docking portion, and the reinforcement frame docking portion is provided with an anti-loosening limit block for supporting the outer wall of the upper limit portion of the bracket.
[0006] The outer diameter of the end cover sleeve portion is larger than the outer diameter of the end cover clamping portion, the outer diameter of the end cover stop portion is larger than the outer diameter of the end cover sleeve portion, and the reinforcement frame docking portion is provided with an end cover stop portion limiting groove for limiting the end cover stop portion.
[0007] A square positioning groove is provided on the back of the bracket mounting plate, a bracket mounting hole is provided in the square positioning groove, and a square positioning block corresponding to the square positioning groove is provided in the reinforcement frame mounting plate, and a reinforcement frame mounting hole corresponding to the bracket mounting hole is provided in the square positioning block.
[0008] The bracket docking portion also includes a bracket guide portion arranged at the upper end of the upper limit portion of the bracket, and a bell mouth is formed between the two bracket guide portions to facilitate the introduction of the end cover clamping portion.
[0009] A conical head is provided at the front end of the anti-loosening limit block, and the number of the anti-loosening limit blocks is 2.
[0010] The bracket clamping protrusion is an arc structure.
[0011] The advantages of the high-voltage fuse assembly of the utility model are: the reinforcement frame can support the fuse tube clamping bracket to prevent the upper limit part of the bracket from loosening due to frequent plugging and unplugging; the bracket clamping protrusion and the end cover stop limit groove cooperate with each other to limit the upward, downward, left and right movement of the fuse tube end cover, effectively ensuring good contact and longer service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0013] Figure 1 It is an exploded view of the high voltage fuse assembly of the utility model;
[0014] Figure 2 It is a structural schematic diagram of the melting tube end cover of the utility model;
[0015] Figure 3 This is a front structural schematic diagram of the fusion pipe clamping bracket of the utility model;
[0016] Figure 4 It is a structural schematic diagram of the reinforcement frame of the utility model;
[0017] Figure 5 It is a schematic diagram of the back structure of the fusion pipe clamping bracket of the utility model. DETAILED DESCRIPTION
[0018] like Figure 1-5As shown, the high-voltage fuse assembly involved in the utility model includes a fuse tube 1, a fuse core 2, a fuse tube end cover 3 sleeved at both ends of the fuse tube 1, a fuse tube clamping bracket 4, and a reinforcement frame 5. The fuse tube end cover 3 includes an end cover sleeve portion 8, an end cover clamping portion 9 and an end cover stopper 10. The end cover sleeve portion 8 is provided with an end cover docking hole 11 docking with the fuse tube 1, and the end cover clamping portion 9 is provided with a transversely arranged end cover limiting groove 12. The fuse tube clamping bracket 4 includes a bracket mounting plate 13 and a bracket docking portion 18 arranged at both ends of the bracket mounting plate 13. The bracket docking portion 18 is sequentially provided with a vertically arranged bracket transition portion 14, a bracket clamping portion 15 for clamping the end cover clamping portion 9, and a vertically arranged bracket upper limit portion 16 from bottom to top. The inner wall of the bracket clamping portion 15 is provided with a transversely arranged and connected to the end cover. The end cover limit groove 12 corresponds to the bracket clamping protrusion 20; the reinforcement frame 5 includes a reinforcement frame mounting plate 21 placed under the bracket mounting plate 13 and a reinforcement frame docking portion 22 wrapped outside the bracket docking portion 18, and the reinforcement frame docking portion 22 is provided with an anti-loosening limit block 23 for supporting the outer wall of the bracket upper limit portion 16. The anti-loosening limit block 23 of the reinforcement frame 5 supports the bracket upper limit portion 16 of the fuse clamping bracket 4 to prevent the bracket upper limit portion 6 from loosening after frequent plugging and unplugging; the bracket clamping protrusion 20 limits the rotation of the fuse end cover, effectively ensuring good contact and longer service life.
[0019] The outer diameter of the end cover sleeve portion 8 is larger than the outer diameter of the end cover clamping portion 9, and the outer diameter of the end cover stop portion 10 is larger than the outer diameter of the end cover sleeve portion 8. The reinforcement frame docking portion 22 is provided with an end cover stop portion limiting groove 24 for limiting the end cover stop portion 10. The end cover stop portion limiting groove 24 serves to limit the left and right positions of the end cover stop portion 10, and is used in combination with the bracket clamping protrusion 20 to achieve a good limiting effect.
[0020] A square positioning groove 26 is provided on the back of the bracket mounting plate 13, and a bracket mounting hole 27 is provided in the square positioning groove 26. The reinforcement frame mounting plate 21 is provided with a square positioning block 28 corresponding to the square positioning groove 26, and a reinforcement frame mounting hole 29 corresponding to the bracket mounting hole 27 is provided in the square positioning block 28. The docking positioning is accurate and the connection is firm and tight.
[0021] The bracket docking portion 18 also includes a bracket guide portion 17 disposed at the upper end of the bracket upper limit portion 16. A bell mouth is formed between the two bracket guide portions 17 to facilitate the introduction of the end cover clamping portion 9, thereby facilitating the installation of the melting tube end cover 3 and making it smoother for users to use.
[0022] A conical head 31 is provided at the front end of the anti-loosening limit block 23. There are two anti-loosening limit blocks 23, which is more stable and reliable.
[0023] The bracket engaging protrusion 20 is an arc structure with a smooth transition and is not easy to get stuck.
[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.
Claims
1. A high-voltage fuse assembly, comprising a fuse tube (1), a fuse core (2), fuse tube end covers (3) sleeved on both ends of the fuse tube (1), and a fuse tube clamping bracket (4), characterized in that: It also comprises a reinforcing frame (5), the fusion tube end cover (3) comprises an end cover sleeve portion (8), an end cover clamping portion (9) and an end cover stopper (10), the end cover sleeve portion (8) is provided with an end cover docking hole (11) for docking with the fusion tube (1), the end cover clamping portion (9) is provided with a transversely arranged end cover limiting groove (12), the fusion tube clamping bracket (4) comprises a bracket mounting plate (13) and bracket docking portions (18) arranged at both ends of the bracket mounting plate (13), the bracket docking portion (18) is provided with a vertically arranged bracket transition portion (14), a bracket clamping portion (15) for clamping the end cover clamping portion (9), and a vertically arranged bracket upper limit portion (16) in sequence from bottom to top, and the inner wall of the bracket clamping portion (15) is provided with a transversely arranged bracket clamping protrusion (20) corresponding to the end cover limiting groove (12); The reinforcement frame (5) comprises a reinforcement frame mounting plate (21) disposed below the bracket mounting plate (13) and a reinforcement frame docking portion (22) wrapped outside the bracket docking portion (18), and an anti-loosening limit block (23) for supporting the outer wall of the bracket upper limit portion (16) is provided on the reinforcement frame docking portion (22).
2. The high voltage fuse assembly according to claim 1, characterized in that: The outer diameter of the end cover sleeve portion (8) is greater than the outer diameter of the end cover clamping portion (9), the outer diameter of the end cover stop portion (10) is greater than the outer diameter of the end cover sleeve portion (8), and the reinforcement frame docking portion (22) is provided with an end cover stop portion limiting groove (24) for limiting the end cover stop portion (10).
3. The high voltage fuse assembly according to claim 1, characterized in that: The back of the bracket mounting plate (13) is provided with a square positioning groove (26), a bracket mounting hole (27) is provided in the square positioning groove (26), the reinforcement frame mounting plate (21) is provided with a square positioning block (28) corresponding to the square positioning groove (26), and a reinforcement frame mounting hole (29) corresponding to the bracket mounting hole (27) is provided in the square positioning block (28).
4. The high voltage fuse assembly according to claim 1, characterized in that: The bracket docking portion (18) further comprises a bracket guiding portion (17) disposed at the upper end of the bracket upper limit portion (16), and a bell mouth is formed between the two bracket guiding portions (17) to facilitate the introduction of the end cover clamping portion (9).
5. The high voltage fuse assembly according to claim 1, characterized in that: A conical head (31) is provided at the front end of the anti-loosening limit block (23), and the number of the anti-loosening limit blocks (23) is two.
6. The high voltage fuse assembly according to claim 1, characterized in that: The bracket clamping protrusion (20) is an arc structure.