Anti-corrosion durable plastic breaker middle cover

By designing protective and anti-corrosion mechanisms, the problem of moisture penetration caused by holes and gaps on the surface of the cover of the plastic circuit breaker is solved, achieving sealed protection and improved durability of the circuit breaker, and extending its service life.

CN223911603UActive Publication Date: 2026-02-13ZHEJIANG HONGHUAN ELECTRIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520244686.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-02-13
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

The existing plastic circuit breaker cover has many holes and gaps on its surface during use, which allows moisture from the air to seep in, causing electronic components to corrode or rust, thus affecting the service life of the circuit breaker.

Method used

A corrosion-resistant and durable plastic circuit breaker cover was designed. Through the cooperation of protective and anti-corrosion mechanisms, including a protective cover, a sealing plate, an anti-corrosion coating, and a durable layer, the circuit breaker cover is sealed and protected, reducing moisture penetration and improving the corrosion resistance and strength of the protective cover.

Benefits of technology

It effectively prevents moisture penetration, improves the durability and sealing of the circuit breaker, and extends the service life of the circuit breaker.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223911603U_ABST
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Abstract

The utility model relates to the technical field of circuit breakers, in particular to an anti-corrosion durable plastic circuit breaker middle cover, which comprises a circuit breaker middle cover main body, the circuit breaker middle cover main body is fixedly arranged on a circuit breaker base through bolts, and the top end of the circuit breaker middle cover main body is fixedly connected with a protection mechanism through bolts. And the protection mechanism penetrates into the circuit breaker middle cover main body, and an anti-corrosion mechanism is arranged in the protection mechanism. According to the utility model, through mutual cooperation of internal parts of the protection mechanism, after the circuit breaker middle cover main body bolt is installed and fixed on the circuit breaker base, the protection cover and the sealing plate are attached to the top end of the circuit breaker middle cover main body, so that sealing protection of the surface of the circuit breaker middle cover main body can be completed; the corrosion resistance of the protective cover can be improved through mutual cooperation of internal parts of the anti-corrosion mechanism, and the strength of the protective cover can be improved through the durable layer, so that the durability of the protective cover is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker technical field, concretely relates to a durable anticorrosive plastic circuit breaker middle cover. BACKGROUND

[0002] The circuit breaker is a kind of switch device that can be closed, carried and opened under the current of normal circuit condition and can be closed, carried and opened under the current of abnormal circuit condition in specified time, and distribution is an extremely important link in the generation, transmission and use of electricity, and the circuit breaker is widely applied in distribution link, and the shell of the circuit breaker is mainly composed of base and middle cover.

[0003] Through the retrieval, a utility model patent with the announcement number CN215183783U specifically discloses a durable anticorrosive plastic circuit breaker middle cover, which comprises a middle cover main body, a handle mounting cavity is arranged at the middle position in the middle cover main body, and a functional module mounting cavity is arranged on one side in the middle cover main body. The durable anticorrosive plastic circuit breaker middle cover is provided with stable clamping grooves at the middle positions on both sides of the middle cover main body, the upper cover is positioned and mounted by positioning clamping grooves fixedly connected at the two ends of the stable clamping grooves during use, the circuit breaker is conveniently assembled, the upper cover is stably mounted by the stable clamping grooves, so that the upper cover and the middle cover main body can be conveniently and quickly connected and stably assembled, the middle cover main body, the base and the upper cover are further connected and stably mounted by fixed screw holes arranged at the two ends in the middle cover main body, so that the circuit breaker can be effectively and stably connected and assembled, and the problem that the circuit breaker is inconvenient to disassemble and assemble is solved.

[0004] In the above-mentioned patent, the middle cover main body, the base and the upper cover are further connected and stably mounted by fixed screw holes arranged at the two ends in the middle cover main body, so that the circuit breaker can be effectively and stably connected and assembled, but the surface of the circuit breaker middle cover is exposed to a plurality of holes and gaps during use, so that the moisture in the air can still penetrate into the circuit breaker through the holes and gaps after the middle cover and the circuit breaker are mounted and fixed, thereby causing corrosion or rust of electronic components in the circuit breaker, and affecting the service life of the circuit breaker.

[0005] Therefore, it is necessary to propose a durable anticorrosive plastic circuit breaker middle cover to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a durable anticorrosive type plastic circuit breaker middle cover, through the mutual cooperation between the internal parts of protection mechanism, after the circuit breaker middle cover main body bolt installation fixed on the circuit breaker base, through the protection cover and sealing plate and the top of circuit breaker middle cover body fit, can complete the sealing protection of the surface of circuit breaker middle cover body, thereby improve the corrosion resistance and sealing property of circuit breaker middle cover body, through the mutual cooperation between the internal parts of anticorrosive mechanism, can improve the corrosion resistance of protection cover, and through durable layer can improve the strength of protection cover itself, thereby improve the durability of protection cover, to solve the problem that the circuit breaker middle cover in the prior art has more holes and gaps on the surface during use, thereby causing the moisture in the air to still penetrate into the circuit breaker through the holes and gaps after the middle cover and the circuit breaker are installed and fixed, thereby causing the corrosion or rust of the electronic components in the circuit breaker, thereby affecting the service life of the circuit breaker.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: an anticorrosive durable type plastic circuit breaker middle cover, including circuit breaker middle cover main body, the circuit breaker middle cover main body is installed and fixed through bolt on the circuit breaker base, the top bolt connection of circuit breaker middle cover main body is fixed with protection mechanism, and is penetrated to the inside of circuit breaker middle cover main body, the inside of protection mechanism is provided with anticorrosive mechanism;

[0008] The protection mechanism includes a protective cover, the top of the protective cover is attached to the circuit breaker middle cover body, and penetrates into the inside of the circuit breaker middle cover body, the outer wall of the protective cover is attached and fixed with a sealing edge on both sides, and is attached to the inner wall of the circuit breaker middle cover body on both sides, the inner wall of the circuit breaker middle cover body is integrally formed with a limiting block on both sides, and penetrates into the inside of the sealing edge, the sealing plate is clamped and attached between the protective cover and the circuit breaker middle cover body, and is fixed with the top of the circuit breaker middle cover body;

[0009] The anticorrosive mechanism includes an anticorrosive coating, the anticorrosive coating is attached to the outermost layer of the protective cover, the inner wall of the protective cover is attached with a sealing layer, and the bottom end is attached to the top end of the sealing plate, the anticorrosive coating and the protective cover are attached with a durable layer, and the outer wall of the protective cover is wrapped.

[0010] Preferably, the protection mechanism further includes a docking column, the docking column has a plurality of, a plurality of the docking column is integrally formed on the top of the circuit breaker middle cover body, and penetrates into the inside of the protective cover through the sealing plate, the top of the protective cover is threadedly connected with a plurality of fixing bolts, and penetrates into the inside of the docking column through the protective cover.

[0011] Preferably, the outer wall of the sealing edge is provided with a limiting groove matched with the limiting block on both sides, and the top of the circuit breaker middle cover body is provided with a mounting groove matched with the protective cover.

[0012] Preferably, the top end of the sealing plate is provided with a raised friction bump, the bottom end of the sealing layer is provided with a matching convex groove with the top end bump of the sealing plate, the composition of the anti-corrosion coating is epoxy anti-corrosion paint, the main component of the durable layer is polyvinyl chloride, and the inside is filled with glass fiber.

[0013] Preferably, the bottom end of the protective cover and the outer wall of the sealing plate are both provided with a matching butt joint groove with the butt joint column, and the inside of the butt joint column and the top end of the protective cover are provided with a threaded groove matching the fixing bolt.

[0014] Preferably, the outer wall of the sealing plate is 0.5-1mm thicker than the center of the sealing plate, and the outer wall of the sealing plate is completely attached to the inner wall of the protective cover.

[0015] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0016] By positioning and installing the sealing plate in the circuit breaker cover body top through the butt joint column, then butt joint the protective cover with the circuit breaker cover body top, and slide the limiting block in the sealing edge on both sides of the protective cover by the limiting block on both sides of the inner wall of the circuit breaker cover body, at the same time, the bottom end of the protective cover is positioned and butt jointed with the butt joint column, so that the butt joint column penetrates into the inside of the protective cover, the connection and positioning of the protective cover on the top of the circuit breaker cover body can be completed, and the connection and fixing between the protective cover and the circuit breaker cover body can be completed by rotating the fixing bolt and penetrating the protective cover into the inside of the butt joint column through the thread, so that the hole and gap on the top of the circuit breaker cover body can be sealed and protected, thereby reducing the penetration of moisture in the air into the circuit breaker to cause the corrosion of electronic components in the circuit breaker, and improving the durability of the circuit breaker.

[0017] By attaching the anti-corrosion coating to the surface of the protective cover, and the composition of the anti-corrosion coating being epoxy anti-corrosion paint, the corrosion resistance of the surface of the protective cover can be improved, by the main component of the durable layer being polyvinyl chloride and the inside being filled with glass fiber, the strength and toughness of the protective cover itself can be improved, thereby improving the durability of the protective cover, the top end of the sealing plate is provided with a raised friction bump, the bottom end of the sealing layer is provided with a matching convex groove with the top end bump of the sealing plate, when the sealing layer and the sealing plate contact each other, the sealing plate is extruded, the structure of the sealing plate is slightly deformed, the outer wall of the sealing plate and the inner wall of the circuit breaker cover body are filled, and the sealing property of the outer wall of the sealing plate and the inner wall of the circuit breaker cover body is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described in the following are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0019] Figure 1 It is an overall structure schematic view of the utility model;

[0020] Figure 2 It is an explosion structure schematic view of the middle cover body and the protective cover of the circuit breaker of the utility model;

[0021] Figure 3 It is a cross-sectional structure schematic view of the protective cover of the utility model;

[0022] Figure 4 It is an overall structure schematic view of the utility model; Figure 2 It is an enlarged structure schematic view of A in the middle of the utility model.

[0023] Explanation of reference signs:

[0024] 1, the middle cover body of the circuit breaker; 2, the protection mechanism; 201, the protective cover; 202, the sealing edge; 203, the limiting block; 204, the butt joint column; 205, the sealing plate; 206, the fixing bolt; 3, the anti-corrosion mechanism; 301, the anti-corrosion coating; 302, the durable layer; 303, the sealing layer. Specific implementation mode

[0025] In order to make those skilled in the art better understand the technical solutions of the utility model, the following will be further introduced in detail to the utility model in conjunction with the drawings.

[0026] The utility model provides a kind of anticorrosive durable plastic circuit breaker middle cover as shown in Figures 1-4 The utility model discloses a kind of anticorrosive durable plastic circuit breaker middle cover, including circuit breaker middle cover body 1, circuit breaker middle cover body 1 is fixed by bolt installation in circuit breaker base, the top bolt connection of circuit breaker middle cover body 1 is fixed with protection mechanism 2, and it is penetrated to the inside of circuit breaker middle cover body 1, protection mechanism 2 is internally provided with anti-corrosion mechanism 3;

[0027] Protection mechanism 2 includes protective cover 201, protective cover 201 is attached with the top of circuit breaker middle cover body 1, and it is penetrated to the inside of circuit breaker middle cover body 1, the outer wall both sides of protective cover 201 are fixed with sealing edge 202, and are attached with the inside wall both sides of circuit breaker middle cover body 1, the inside wall both sides of circuit breaker middle cover body 1 are integrally formed with limiting block 203, and it is penetrated to the inside of sealing edge 202, protective cover 201 and circuit breaker middle cover body 1 are clamped with sealing plate 205, and are fixed with the top of circuit breaker middle cover body 1 sleeve joint;

[0028] The anticorrosion mechanism 3 comprises an anticorrosion coating 301 attached to the outermost layer of the protective cover 201, the inner wall of the protective cover 201 is attached with a sealing layer 303, and the bottom end is attached with the top end of the sealing plate 205, the anticorrosion coating 301 and the outer wall of the protective cover 201 are attached with a durable layer 302, and the outer wall of the protective cover 201 is wrapped.

[0029] Through the cooperation between the internal parts of the protection mechanism 2, after the middle cover body 1 of the circuit breaker is fixed on the circuit breaker base, the top end of the protective cover 201 and the sealing plate 205 are attached to the top end of the middle cover body 1 of the circuit breaker, the sealing and protection of the surface of the middle cover body 1 of the circuit breaker can be completed, thereby improving the corrosion resistance and sealing performance of the middle cover body 1 of the circuit breaker, and through the cooperation between the internal parts of the anticorrosion mechanism 3, the corrosion resistance of the protective cover 201 can be improved, and the strength of the protective cover 201 itself can be improved through the durable layer 302, thereby improving the durability of the protective cover 201.

[0030] Referring to the drawings Figures 1-4 The protection mechanism 2 further comprises a plurality of docking columns 204, the plurality of docking columns 204 are integrally formed at the top end of the middle cover body 1 of the circuit breaker and penetrate into the interior of the protective cover 201 through the sealing plate 205, a plurality of fixing bolts 206 are threadedly connected to the top end of the protective cover 201 and penetrate into the interior of the docking columns 204 through the protective cover 201, and through the cooperation between the internal parts of the protection mechanism 2, the connection and fixation of the protective cover 201 and the middle cover body 1 of the circuit breaker can be completed.

[0031] Referring to the drawings Figures 1-4 The outer wall of the sealing edge 202 is provided with a limiting groove matched with the limiting block 203, and the top end of the middle cover body 1 of the circuit breaker is provided with a mounting groove matched with the protective cover 201, through the limiting groove matched with the limiting block 203 on the outer wall of the sealing edge 202 and the mounting groove matched with the protective cover 201 on the top end of the middle cover body 1 of the circuit breaker, the protective cover 201 can be clamped and connected to the top end of the middle cover body 1 of the circuit breaker.

[0032] Referring to the drawings Figures 1-4 The top end of the sealing plate 205 is provided with a protruding friction protrusion, the bottom end of the sealing layer 303 is provided with a protruding groove matched with the protrusion on the top end of the sealing plate 205, the anticorrosion coating 301 is composed of epoxy anticorrosion paint, and the durable layer 302 is mainly composed of polyvinyl chloride and filled with glass fibers in the interior, through the main component of the durable layer 302 being polyvinyl chloride and the interior being filled with glass fibers, the strength and toughness of the protective cover 201 itself can be improved, thereby improving the durability of the protective cover 201.

[0033] Referring to the drawings Figures 1-4The bottom end of the protective cover 201 and the outer wall of the sealing plate 205 are provided with a butt joint groove matched with the butt joint column 204, the inside of the butt joint column 204 and the top end of the protective cover 201 are provided with a threaded groove matched with the fixing bolt 206, the bottom end of the protective cover 201 and the outer wall of the sealing plate 205 are provided with a butt joint groove matched with the butt joint column 204, so that the protective cover 201 and the sealing plate 205 are positioned and installed at the top end of the circuit breaker cover main body 1 through the butt joint column 204.

[0034] With reference to the drawings Figures 1-4 The outer wall of the sealing plate 205 is 0.5-1mm thicker than the center of the sealing plate 205, and the outer wall of the sealing plate 205 is completely attached to the inner wall of the protective cover 201, so that when the sealing layer 303 and the sealing plate 205 are in contact, the sealing plate 205 is extruded, the internal structure of the center of the sealing plate 205 is slightly deformed, the outer wall of the sealing plate 205 is filled, and the sealing property of the sealing plate 205 and the inner wall of the circuit breaker cover main body 1 is improved.

[0035] The utility model works as follows:

[0036] With reference to the drawings Figures 1-4 The sealing plate 205 is positioned and installed at the top end of the circuit breaker cover main body 1 through the butt joint column 204, the protective cover 201 is butt jointed with the top end of the circuit breaker cover main body 1, the limiting block 203 is slid to the sealing edge 202 on the two sides of the protective cover 201 through the inner wall of the circuit breaker cover main body 1, the butt joint column 204 is penetrated into the inside of the protective cover 201, the connection and positioning of the protective cover 201 at the top end of the circuit breaker cover main body 1 are completed, the fixing bolt 206 is screwed through the protective cover 201 to the inside of the butt joint column 204, the connection and fixing between the protective cover 201 and the circuit breaker cover main body 1 are completed, the top end hole and gap of the circuit breaker cover main body 1 are sealed and protected, the moisture in the air is prevented from penetrating into the circuit breaker, the corrosion of the electronic components in the circuit breaker is avoided, and the durability of the circuit breaker is improved.

[0037] With reference to the drawings Figures 1-4The anticorrosive coating 301 is attached to the surface of the protective cover 201, and the composition of the anticorrosive coating 301 is epoxy anticorrosive paint, so that the corrosion resistance of the surface of the protective cover 201 is improved; the main component of the durable layer 302 is polyvinyl chloride, and the inside is filled with glass fibers, so that the strength and toughness of the protective cover 201 itself are improved, thereby improving the durability of the protective cover 201; the top end of the sealing plate 205 is provided with a protruding friction protrusion, and the bottom end of the sealing layer 303 is provided with a protruding groove matched with the top end protrusion of the sealing plate 205, so that when the sealing layer 303 and the sealing plate 205 are in contact with each other, the sealing plate 205 is extruded, the internal structure of the sealing plate 205 is slightly deformed, the outer wall of the sealing plate 205 is filled between the inner wall of the circuit breaker middle cover body 1, and the sealing property of the sealing plate 205 and the inner wall of the circuit breaker middle cover body 1 is improved.

[0038] It should be noted that the above merely describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various manners without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature, and should not be construed as limiting the scope of protection of the present application.

Claims

1. A corrosion-resistant and durable plastic circuit breaker cover, characterized in that: Including the middle cover body (1) of the circuit breaker, the middle cover body (1) is fixed by bolt installation in the circuit breaker base, the top end of the middle cover body (1) is fixed with the protection mechanism (2) by bolt connection, and it penetrates to the inside of the middle cover body (1), the inside of the protection mechanism (2) is provided with the anticorrosion mechanism (3); The protection mechanism (2) includes a protective cover (201), the protective cover (201) is attached to the top end of the middle cover body (1) and penetrates into the inside of the middle cover body (1), the outer wall of the protective cover (201) is fixed with a sealing edge (202) on both sides, and is attached to the inner wall of the middle cover body (1) on both sides, the inner wall of the middle cover body (1) is integrally formed with a limiting block (203) on both sides, and penetrates into the inside of the sealing edge (202), the protective cover (201) and the middle cover body (1) are clamped with a sealing plate (205), and the top end of the middle cover body (1) is fixed with a sealing plate (205); The anticorrosion mechanism (3) includes an anticorrosion coating (301), the anticorrosion coating (301) is attached to the outermost layer of the protective cover (201), the inner wall of the protective cover (201) is attached with a sealing layer (303), and the bottom end is attached to the top end of the sealing plate (205), the anticorrosion coating (301) and the protective cover (201) are attached with a durable layer (302), and the outer wall of the protective cover (201) is wrapped.

2. A corrosion resistant, durable plastic cover for a circuit breaker according to claim 1, wherein: The protection mechanism (2) further includes a docking column (204), the docking column (204) has a plurality of, a plurality of the docking column (204) is integrally formed at the top end of the middle cover body (1), and penetrates the sealing plate (205) to the inside of the protective cover (201), the top end of the protective cover (201) is threadedly connected with a plurality of fixing bolts (206), and penetrates the protective cover (201) to the inside of the docking column (204).

3. A corrosion resistant, durable plastic cover for a circuit breaker according to claim 1, wherein: The outer wall of the sealing edge (202) is provided with a limiting groove matched with the limiting block (203) on both sides, and the top end of the middle cover body (1) is provided with an installation groove matched with the protective cover (201).

4. A corrosion resistant, durable plastic cover for a circuit breaker according to claim 2, wherein: The bottom end of the protective cover (201) and the outer wall of the sealing plate (205) are provided with a docking groove matched with the docking column (204), and the inside of the docking column (204) and the top end of the protective cover (201) are provided with a threaded groove matched with the fixing bolt (206).

5. A corrosion resistant, durable plastic cover for a circuit breaker according to claim 2, wherein: The thickness of the outer wall of the sealing plate (205) is 0.5-1mm thicker than the center thickness of the sealing plate (205), and the outer wall of the sealing plate (205) is completely attached to the inner wall of the protective cover (201) on both sides.

Citation Information

Patent Citations

  • A corrosion-resistant and durable plastic circuit breaker cover

    CN215183783U