Direct-insertion surge arrester with high-strength connection structure

Abstract

A direct-insertion surge arrester with a high-strength connection structure can significantly improve the overall connection strength of the arrester, preventing loosening or detachment due to external forces or vibrations, thereby enhancing the arrester's reliability and safety. Furthermore, the reinforced snap-fit ​​connection between the connector and the arrester body not only facilitates installation but also allows for quicker disassembly, simplifying future maintenance and replacement. Simultaneously, the reinforced connector design effectively distributes and bears the stress and load generated during operation, extending the arrester's service life.

Description

Technical Field

[0001] This utility model relates to the field of surge arrester technology, specifically to a direct-insertion surge arrester with a high-strength connection structure. Background Technology

[0002] In the existing technology, the connection structure of direct-insertion surge arresters is usually relatively simple, which makes them prone to loosening or falling off under the influence of external forces or vibrations. This not only affects the normal operation of the surge arrester, but may also pose a threat to the safe operation of the equipment. Summary of the Invention

[0003] In view of this, the present invention provides a direct-insertion surge arrester with a high-strength connection structure.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A direct-insertion surge arrester with a high-strength connection structure includes an arrester housing and an arrester body. A conductive channel is formed inside the arrester housing. A cable connector and a conductive post are disposed within the conductive channel. The cable connector and the conductive post are connected. The conductive channel has a cable interface portion and a body interface portion. The arrester body extends into the conductive channel through the body interface portion and connects to the conductive post. A reinforcing connector is disposed between the arrester body and the body interface portion. The reinforcing connector is sleeved on the end of the arrester housing near the body interface portion. One end of the arrester body passes through the reinforcing connector and extends into the conductive channel to connect to the conductive post. The arrester body and the reinforcing connector are snap-fit ​​connected.

[0005] Preferably, the reinforcing connector is arranged in a cylindrical structure, having an inner ring and an outer ring, with a connecting ring groove formed between the inner and outer rings. The connecting ring groove has an internal thread on the groove wall of the outer ring, and an external thread is provided on the end of the surge arrester housing near the main body interface. The end of the surge arrester housing near the main body interface extends into the connecting ring groove and is threadedly connected to the reinforcing connector. The inner ring and the surge arrester housing extending into the connecting ring groove are clearance-fitted.

[0006] Preferably, the outer ring portion includes a first outer ring portion and a second outer ring portion, the connecting ring groove is formed between the first outer ring portion and the inner ring portion, an annular snap-fit ​​groove is formed on the inner wall of the second outer ring portion, and an outer snap-fit ​​end is provided on the surge arrester body corresponding to the annular snap-fit ​​groove, the outer snap-fit ​​end extends into the annular snap-fit ​​groove and snaps into the reinforcing connector.

[0007] Preferably, the surge arrester body includes an insulating sleeve and a body connector. The insulating sleeve is fitted onto the body connector. The outer snap-fit ​​end protrudes from the insulating sleeve. The insulating sleeve also has an inner snap-fit ​​end that snaps into the inner ring portion. The inner ring portion has several inner ring snap holes. The inner snap-fit ​​end passes through the inner ring snap holes and extends into the connecting ring groove.

[0008] Preferably, the cross-sectional shape of both the inner and outer snap-fit ​​ends is triangular.

[0009] Preferably, the reinforcing connector is made of plastic.

[0010] The beneficial effects of this invention are as follows: it significantly improves the overall connection strength of the surge arrester, preventing loosening or detachment due to external forces or vibrations, thereby enhancing the reliability and safety of the surge arrester. Furthermore, the reinforced snap-fit ​​connection between the connector and the surge arrester body not only facilitates installation but also allows for quicker disassembly, simplifying future maintenance and replacement. Simultaneously, the reinforced connector design effectively distributes and bears the stress and load generated during operation, extending the service life of the surge arrester. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Appendix Figure 1 This is a schematic diagram of the structure of this utility model; Appendix Figure 2 For the appendix Figure 1 Enlarged view of point A in the middle. Detailed Implementation

[0013] 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.

[0014] The present invention will now be further described with reference to the accompanying drawings.

[0015] This utility model provides the following technical solution: As attached Figure 1-2As shown, this utility model discloses a direct-insertion surge arrester with a high-strength connection structure, including a surge arrester housing 1 and a surge arrester body 2. A conductive channel 3 is formed inside the surge arrester housing 1. A cable connector 4 and a conductive post 5 are provided in the conductive channel 3. The cable connector 4 and the conductive post 5 are connected. The conductive channel 3 has a cable interface portion 6 and a body interface portion 7. The surge arrester body 2 extends into the conductive channel 3 through the body interface portion 7 and connects to the conductive post 5. A reinforcing connector 8 is provided between the surge arrester body 2 and the body interface portion 7. The reinforcing connector 8 is sleeved on the end of the surge arrester housing 1 near the body interface portion 7. One end of the surge arrester body 2 passes through the reinforcing connector 8 and extends into the conductive channel 3 to connect to the conductive post 5. The surge arrester body 2 and the reinforcing connector 8 are snap-fit ​​connected. Specifically, in this design, by installing a reinforcing connector 8 between the surge arrester housing 1 and the surge arrester body 2, the overall connection strength of the surge arrester can be significantly improved, preventing loosening or detachment of the connection due to external forces or vibrations, thereby improving the reliability and safety of the surge arrester. Furthermore, the snap-fit ​​connection between the reinforcing connector 8 and the surge arrester body 2 is not only convenient to install but also allows for quicker disassembly, facilitating later maintenance and replacement. At the same time, the design of the reinforcing connector 8 can effectively distribute and bear the stress and load generated by the surge arrester during operation, extending the service life of the surge arrester.

[0016] Furthermore, the reinforcing connector 8 is arranged in a cylindrical structure, having an inner ring portion 9 and an outer ring portion 10. A connecting ring groove 11 is formed between the inner ring portion 9 and the outer ring portion 10. An internal thread is provided on the groove wall of the connecting ring groove 11 located on the outer ring portion 10. An external thread is provided on the end of the surge arrester housing 1 near the main body interface portion 7. The end of the surge arrester housing 1 near the main body interface portion 7 extends into the connecting ring groove 11 and is threadedly connected to the reinforcing connector 8. A clearance fit is formed between the inner ring portion 9 and the surge arrester housing 1 extending into the connecting ring groove 11. Specifically, in this embodiment, the reinforcing connector 8 adopts a cylindrical structure design, which not only enhances the stability of the structure but also makes the connection tighter. The clearance fit between the inner ring portion 9 and the surge arrester housing 1 ensures the flexibility of the reinforcing connector 8 during installation. The internal thread on the outer ring 10 mates with the external thread on the arrester housing 1, achieving a threaded connection between the reinforcing connector 8 and the arrester housing 1. This connection method is not only robust and reliable but also effectively prevents moisture and dust from entering the connection area, ensuring the arrester's sealing and insulation performance. Furthermore, the design of the connecting ring groove 11 facilitates positioning during installation and disassembly, making the entire installation process simpler and faster.

[0017] Furthermore, the outer ring portion 10 includes a first outer ring portion 12 and a second outer ring portion 13. The connecting ring groove 11 is formed between the first outer ring portion 12 and the inner ring portion 9. An annular snap-fit ​​groove 14 is formed on the inner wall of the second outer ring portion 13. An outer snap-fit ​​end 15 is provided on the arrester body 2 corresponding to the annular snap-fit ​​groove 14. The outer snap-fit ​​end 15 extends into the annular snap-fit ​​groove 14 and snaps into the reinforcing connector 8. Specifically, in this embodiment, the connecting ring groove 11 is located between the first outer ring portion 12 and the inner ring portion 9. This design ensures the tightness of the connection between the reinforcing connector 8 and the arrester housing 1. The annular snap-fit ​​groove 14 formed on the inner wall of the second outer ring portion 13 cooperates with the outer snap-fit ​​end 15 on the arrester body 2. The outer snap-fit ​​end 15 can be precisely inserted into the annular snap-fit ​​groove 14 to form a stable snap-fit ​​connection with the reinforcing connector 8. This connection method is not only simple and quick, but also greatly improves the connection strength between the surge arrester body 2 and the reinforcing connector 8.

[0018] Furthermore, the surge arrester body 2 includes an insulating sleeve 16 and a body connector 17. The insulating sleeve 16 is fitted onto the body connector 17, and the outer snap-fit ​​end 15 protrudes from the insulating sleeve 16. The insulating sleeve 16 also has an inner snap-fit ​​end 18 that engages with the inner ring portion 9. The inner ring portion 9 has several inner ring snap holes 19, and the inner snap-fit ​​end 18 passes through the inner ring snap holes 19 and extends into the connecting ring groove 11. Specifically, in this embodiment, the surge arrester body 2 is composed of an insulating sleeve 16 and a body connector 17. The insulating sleeve 16 is tightly fitted onto the body connector 17, providing good insulation protection. The outer snap-fit ​​end 15 protrudes from the surface of the insulating sleeve 16, is ingeniously designed, and can smoothly extend into the annular snap-fit ​​groove 14 of the reinforcing connector 8 to achieve a snap-fit ​​connection. Meanwhile, the insulating sleeve 16 is also provided with an inner snap-fit ​​end 18 that engages with the inner ring portion 9. The inner ring portion 9 has several inner ring snap holes 19, through which the inner snap-fit ​​end 18 can precisely pass and extend into the gap 20 between the inner ring portion 9 and the surge arrester housing 1, forming a more stable snap-fit ​​structure with the inner ring portion 9. This double snap-fit ​​design not only enhances the connection stability between the surge arrester body 2 and the reinforcing connector 8, but also further improves the structural strength of the entire surge arrester.

[0019] Furthermore, both the inner snap-fit ​​end 18 and the outer snap-fit ​​end 15 have triangular cross-sectional shapes. Specifically, in this embodiment, the triangular structural characteristics give the snap-fit ​​ends higher strength and stability, effectively resisting external forces and preventing loosening of the connection. Simultaneously, when the triangular snap-fit ​​ends are engaged with the corresponding slots, they form a tighter fit, enhancing the sealing and insulation performance of the connection. In addition, the triangular cross-sectional shape facilitates the processing and manufacturing of the snap-fit ​​ends, improving production efficiency and cost control.

[0020] Furthermore, the reinforcing connector 8 is made of plastic. Specifically, in this embodiment, the plastic material has excellent insulation properties, effectively isolating current and ensuring the safe use of the surge arrester. Moreover, the plastic material has strong corrosion resistance and aging resistance, maintaining stable performance under harsh environmental conditions and extending the service life of the surge arrester.

[0021] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A direct-insertion surge arrester with a high-strength connection structure, comprising an arrester housing and an arrester body, wherein a conductive channel is formed within the arrester housing, a cable connector and a conductive post are disposed within the conductive channel, the cable connector and the conductive post are connected, the conductive channel has a cable interface portion and a body interface portion, and the arrester body extends into the conductive channel through the body interface portion and connects to the conductive post, characterized in that: A reinforcing connector is provided between the surge arrester body and the body interface. The reinforcing connector is sleeved on the end of the surge arrester housing near the body interface. One end of the surge arrester body passes through the reinforcing connector and extends into the conductive channel to connect with the conductive post. The surge arrester body and the reinforcing connector are snap-fit ​​connected.

2. The direct-insertion surge arrester with a high-strength connection structure according to claim 1, characterized in that: The reinforcing connector has a cylindrical structure, with an inner ring and an outer ring. A connecting ring groove is formed between the inner and outer rings. An internal thread is provided on the groove wall of the connecting ring groove on the outer ring. An external thread is provided on one end of the surge arrester housing near the main body interface. The end of the surge arrester housing near the main body interface extends into the connecting ring groove and is threadedly connected to the reinforcing connector. There is a clearance fit between the inner ring and the surge arrester housing extending into the connecting ring groove.

3. The direct-insertion surge arrester with a high-strength connection structure according to claim 2, characterized in that: The outer ring portion includes a first outer ring portion and a second outer ring portion. The connecting ring groove is formed between the first outer ring portion and the inner ring portion. An annular snap-fit ​​groove is formed on the inner wall of the second outer ring portion. An outer snap-fit ​​end is provided on the arrester body corresponding to the annular snap-fit ​​groove. The outer snap-fit ​​end extends into the annular snap-fit ​​groove and snaps into the reinforcing connector.

4. The direct-insertion surge arrester with a high-strength connection structure according to claim 3, characterized in that: The surge arrester body includes an insulating sleeve and a body connector. The insulating sleeve is fitted onto the body connector. The outer snap-fit ​​end protrudes from the insulating sleeve. The insulating sleeve also has an inner snap-fit ​​end that snaps into the inner ring portion. The inner ring portion has several inner ring snap holes. The inner snap-fit ​​end passes through the inner ring snap holes and extends into the connecting ring groove.

5. The direct-insertion surge arrester with a high-strength connection structure according to claim 4, characterized in that: Both the inner and outer snap-fit ​​ends have triangular cross-sectional shapes.

6. The direct-insertion surge arrester with a high-strength connection structure according to claim 1, characterized in that: The reinforcing connector is made of plastic.

Images