Anti-interference lightning arrester

Abstract

According to the anti-interference lightning arrester, the magnetic ring positioning groove is formed in the inner wall of the cable plugging part of the plugging channel, and the anti-interference magnetic ring is arranged, so that the influence of electromagnetic interference on the performance of the lightning arrester can be effectively reduced. In addition, through the buckle type connection design, the anti-interference magnetic ring is more convenient to install and replace, and the maintenance efficiency is improved. The arrangement of the crimping terminal not only ensures the reliable connection between the cable and the lightning arrester, but also further enhances the anti-interference capability of the lightning arrester through the internal connection with the anti-interference magnetic ring. On the whole, the lightning arrester can still keep stable working performance in a complex electromagnetic environment due to the design, and a powerful guarantee is provided for safe operation of a power system.

Description

TECHNICAL FIELD

[0001] The utility model relates to lightning arrester technical field, concretely relates to an anti-interference lightning arrester. BACKGROUND

[0002] In prior art, lightning arrester can effectively reduce the interference of lightning electromagnetic pulse to equipment after installing anti-interference magnetic ring, but its structure design is often complex, and the installation and maintenance process is cumbersome. SUMMARY

[0003] Therefore, the utility model provides an anti-interference lightning arrester.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] An anti-interference lightning arrester, including lightning arrester body, the plug-in channel is formed in the lightning arrester body, the plug-in channel has cable plug-in part and distribution box plug-in part, the inner wall on the cable plug-in part is concave and forms the magnetic ring positioning slot, the anti-interference magnetic ring is arranged in the magnetic ring positioning slot, the upper slot wall of the magnetic ring positioning slot is provided with buckle hole, the anti-interference magnetic ring is provided with buckle block corresponding to the buckle hole, the buckle block is inserted into the buckle hole and is connected with the lightning arrester body in buckle type, the compression terminal is arranged in the cable plug-in part, and the compression terminal is inserted into the anti-interference magnetic ring and is connected with the anti-interference magnetic ring.

[0006] Preferably, the anti-interference magnetic ring is made of high-permeability alloy material, the anti-interference magnetic ring is arranged in a ring structure, the buckle block is protruded and formed on the outer wall of the anti-interference magnetic ring, the cross section shape of the buckle block is arranged in a trapezoidal shape, the buckle block has two symmetrical inclined guide surfaces, the shape of the buckle hole is arranged corresponding to the buckle block, and the buckle block and the anti-interference magnetic ring are detachably connected.

[0007] Preferably, the fastening screw is arranged between the buckle block and the anti-interference magnetic ring, the connecting surface is arranged between the inclined guide surfaces of the buckle block, the connecting screw hole penetrating through the buckle block is formed on the connecting surface, the positioning hole corresponding to the connecting screw hole is arranged on the anti-interference magnetic ring, and the fastening screw is inserted into the positioning hole through the connecting screw hole to connect the buckle block and the anti-interference magnetic ring.

[0008] Preferably, the part of the anti-interference magnetic ring close to the positioning hole is concave and forms the limit connection slot corresponding to the buckle block, and one end of the buckle block is inserted into the limit connection slot and connected with the anti-interference magnetic ring.

[0009] Preferably, the insulating piece is arranged in the cable plug-in part, the inner ring side of the anti-interference magnetic ring is attached to the outer surface of the insulating piece, and the insulating piece is connected with the compression terminal.

[0010] Preferably, the conductive layer is sleeved on the outer surface of the lightning arrester body.

[0011] The utility model discloses the beneficial effect lies in: through setting up the magnetic ring positioning groove on the inner wall of cable plug -in portion of the plug -in channel, and setting up anti -interference magnetic ring, can effectively reduce the influence of electromagnetic interference to lightning arrester performance. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be to the embodiment or prior art description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0013] ATTACHMENT Figure 1 It is the structure schematic drawing of the utility model;

[0014] ATTACHMENT Figure 2 It is the structure schematic drawing of the utility model; Figure 1 It is the enlarged view of A in the middle. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled person in the art without making creative labor belong to the scope of protection of the utility model.

[0016] The utility model will be further described in conjunction with the drawings in the specification.

[0017] The utility model provides the following technical scheme:

[0018] As the structure schematic drawing of the utility model; Figures 1-2The utility model discloses an anti -interference lightning arrester, including lightning arrester body 1, the plug -in channel 2 is formed in lightning arrester body 1, the plug -in channel 2 has cable plug -in part 3 and switchgear plug -in part 4, the inner wall on cable plug -in part 3 is concave and forms the magnetic ring positioning groove 5, the magnetic ring positioning groove 5 is provided with anti -interference magnetic ring 6, the upper groove wall of magnetic ring positioning groove 5 is equipped with buckle hole 7, anti -interference magnetic ring 6 corresponds buckle hole 7 and is equipped with buckle block 8, buckle block 8 is inserted buckle hole 7 and is connected with lightning arrester body 1 buckle type, the cable plug -in part 3 is provided with the crimp terminal 9, and the crimp terminal 9 is inserted and is connected with anti -interference magnetic ring 6 inside anti -interference magnetic ring 6. Specifically, in the present design, by setting up magnetic ring positioning groove 5 on the inner wall of cable plug -in part 3 of plug -in channel 2, and setting up anti -interference magnetic ring 6, the influence of electromagnetic interference on lightning arrester performance can be effectively reduced. In addition, through the buckle type connection design, the installation and replacement of anti -interference magnetic ring 6 are more convenient, and the maintenance efficiency is improved. The setting of crimp terminal 9 not only ensures the reliable connection of the cable and the lightning arrester, but also further enhances the anti -interference ability of the lightning arrester by connecting with the inside of anti -interference magnetic ring 6. As a whole, this design enables the lightning arrester to maintain stable working performance in complex electromagnetic environment, providing a strong guarantee for the safe operation of the power system.

[0019] Further, the anti-interference magnetic ring 6 is made of high-permeability alloy material, the anti-interference magnetic ring 6 is arranged in a ring structure, the buckle block 8 is protruded on the outer wall of the anti-interference magnetic ring 6, the cross section of the buckle block 8 is arranged in a trapezoidal shape, the buckle block 8 has two symmetrical inclined guide surfaces 10, the shape of the buckle hole 7 corresponds to the buckle block 8, and the buckle block 8 is detachably connected with the anti-interference magnetic ring 6. Specifically, in this embodiment, the high-permeability alloy material of the anti-interference magnetic ring 6 can effectively absorb and disperse electromagnetic interference, thereby protecting the lightning arrester from high-frequency interference. The ring structure design enables the magnetic ring to uniformly surround the cable plug-in part 3, providing omnidirectional shielding effect. The trapezoidal cross section shape and the inclined guide surface 10 of the buckle block 8 ensure good guidance and self-locking when the buckle block 8 is inserted into the buckle hole 7, thereby maintaining stability during installation and disassembly and preventing accidental falling. The corresponding design of the buckle hole 7 and the buckle block 8 enables the anti-interference magnetic ring 6 to be quickly and accurately installed in place, while ensuring easy operation when maintenance or replacement is required, greatly improving the maintenance efficiency and reliability of the lightning arrester.

[0020] Further, the buckle block 8 and the anti-interference magnetic ring 6 are provided with a fastening screw 11, the buckle block 8 is located between the inclined guide surfaces 10 and is provided with a connecting surface 12, the connecting surface 12 is provided with a connecting screw hole 13 penetrating the buckle block 8, the anti-interference magnetic ring 6 is provided with a positioning hole 14 corresponding to the connecting screw hole 13, and the fastening screw 11 penetrates the connecting screw hole 13 and extends into the positioning hole 14 to connect the buckle block 8 and the anti-interference magnetic ring 6. Specifically, in the embodiment, the use of the fastening screw 11 further enhances the connection strength between the buckle block 8 and the anti-interference magnetic ring 6, and ensures that the two will not be loose under various working environments. The design of the connecting screw hole 13 penetrating the buckle block 8 on the connecting surface 12 allows the fastening screw 11 to penetrate, thereby achieving firm fixation of the buckle block 8. The corresponding positioning hole 14 on the anti-interference magnetic ring 6 not only provides accurate positioning for the fastening screw 11, but also ensures that the magnetic ring will not deform due to uneven stress during the fastening process. Through this structural design, the anti-interference magnetic ring 6 can maintain its position unchanged even under strong vibration or impact conditions, thereby continuously providing stable electromagnetic interference protection.

[0021] Further, the anti-interference magnetic ring 6 is recessed near the positioning hole 14 to form a limiting connection groove 15 corresponding to the buckle block, and one end of the buckle block 8 extends into the limiting connection groove 15 to be connected with the anti-interference magnetic ring 6. Specifically, in the embodiment, the design of the limiting connection groove 15 makes the connection between the buckle block 8 and the anti-interference magnetic ring 6 more accurate and stable. When the buckle block 8 is inserted into the limiting connection groove 15, one end of the buckle block 8 tightly fits with the limiting connection groove 15, thereby limiting the movement range of the buckle block 8 and preventing accidental disengagement of the buckle block 8 under vibration or impact conditions. In addition, the recessed shape of the limiting connection groove 15 increases the contact area between the buckle block 8 and the anti-interference magnetic ring 6, thereby improving the mechanical strength and torsional resistance of the connection part.

[0022] Further, an insulating member 16 is arranged in the cable plug-in part 3, the inner ring side of the anti-interference magnetic ring 6 is in close contact with the outer surface of the insulating member 16, and the insulating member 16 is connected with the crimping terminal 9. Specifically, in the embodiment, the shape and size of the insulating member 16 closely fit with the inner ring side of the anti-interference magnetic ring 6, which not only helps to improve the stability of the overall structure, but also further enhances the shielding effect of electromagnetic interference. Through this design, the cable plug-in part 3 not only ensures the quality of signal transmission, but also improves the anti-interference ability of the system.

[0023] Further, the outer surface of the lightning arrester body 1 is sleeved with a conductive layer 17. Specifically, in the present embodiment, the arrangement of the conductive layer 17 can effectively disperse and guide the lightning current to the grounding system, thereby protecting the electrical equipment from lightning damage. In addition, the surface of the conductive layer 17 is specially treated to ensure close combination with the lightning arrester body 1, reduce the change of contact resistance caused by environmental factors, and ensure the stability and reliability of the lightning arrester under various climate conditions.

[0024] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-interference surge arrester, comprising an arrester body, wherein a plug-in channel is formed within the arrester body, the plug-in channel having a cable plug-in portion and a junction box plug-in portion, characterized in that: A magnetic ring positioning groove is formed by recessing the inner wall of the cable plug-in part. An anti-interference magnetic ring is provided in the magnetic ring positioning groove. A snap-fit ​​hole is opened on the upper groove wall of the magnetic ring positioning groove. A snap-fit ​​block is provided on the anti-interference magnetic ring corresponding to the snap-fit ​​hole. The snap-fit ​​block extends into the snap-fit ​​hole and is snap-fitted to the surge arrester body. A crimp terminal is provided in the cable plug-in part. The crimp terminal extends into the anti-interference magnetic ring and is connected to the anti-interference magnetic ring.

2. The anti-interference surge arrester according to claim 1, characterized in that: The anti-interference magnetic ring is made of a high-permeability alloy and has a ring structure. The latching block protrudes from the outer wall of the anti-interference magnetic ring and has a trapezoidal cross-sectional shape. The latching block has two symmetrical inclined guide surfaces and the shape of the latching hole corresponds to the latching block. The latching block and the anti-interference magnetic ring are detachably connected.

3. The anti-interference surge arrester according to claim 2, characterized in that: A fastening screw is provided between the latching block and the anti-interference magnetic ring. A connecting surface is provided between the latching block and the inclined guide surface. A connecting screw hole is provided on the connecting surface that passes through the latching block. A positioning hole is provided on the anti-interference magnetic ring corresponding to the connecting screw hole. The fastening screw passes through the connecting screw hole and extends into the positioning hole to connect the latching block and the anti-interference magnetic ring.

4. The anti-interference surge arrester according to claim 3, characterized in that: The portion of the anti-interference magnetic ring near the positioning hole is recessed to form a limiting connection groove for the corresponding buckle block. One end of the buckle block extends into the limiting connection groove and connects with the anti-interference magnetic ring.

5. The anti-interference surge arrester according to claim 1, characterized in that: An insulating component is provided inside the cable plug-in section, and the inner ring side of the anti-interference magnetic ring is in contact with the outer surface of the insulating component. The insulating component is connected to the crimp terminal.

6. The anti-interference surge arrester according to claim 1, characterized in that: A conductive layer is fitted on the outer surface of the surge arrester body.

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