Moisture-proof and explosion-proof wire box for ship electrical equipment

By introducing an outer protective ring, an inner protective ring, and an anti-corrosion frame into the moisture-proof and explosion-proof junction box of marine electrical equipment, the problems of corrosion and reduced sealing performance of the junction box in humid environments are solved, achieving the effects of moisture-proof and explosion-proof as well as convenient maintenance.

CN223967602UActive Publication Date: 2026-03-03GUANGZHOU SHUNHUA MECHANICAL & ELECTRICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520505158.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-03-03
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

Traditional marine electrical equipment moisture-proof and explosion-proof junction boxes are prone to corrosion and reduced sealing in humid environments, affecting their service life and ease of maintenance.

Method used

A junction box structure including an outer protective ring, an inner protective ring, an anti-corrosion frame, and a sealing ring was designed. The anti-corrosion frame prevents the bottom of the junction box from directly contacting the surface, thereby enhancing the sealing performance and facilitating operation.

Benefits of technology

It effectively prevents corrosion at the bottom of the junction box, extends its service life, improves sealing and maintenance efficiency, and ensures the safe operation of electrical equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a moisture-proof and explosion-proof wire box for ship electrical equipment, which belongs to the technical field of ship wire boxes, and comprises a sealing cover, the sealing cover comprises a cover plate, the bottom of the cover plate is respectively provided with an outer protection ring and an inner protection ring, and the outer protection ring and the inner protection ring are arranged in the inner protection ring. The middle of the outer protection ring and the middle of the inner protection ring are connected to the upper portion of the wire box assembly in a sealed and sleeved mode, an anti-corrosion frame is arranged at the bottom of the wire box assembly, the upper portion of the anti-corrosion frame is installed at the bottom of the wire box assembly in an equally-divided mode, and the bottom of the anti-corrosion frame is installed on the surfaces of a wall, equipment and the like. The anti-corrosion frame is used for supporting the wire box assembly to prevent the wire box assembly from being attached to a wall and the like, meanwhile, the sealing cover further improves the sealing effect, the bottom of the wire box body is prevented from being directly attached to the surface of the wall, equipment and the like through the arrangement of the anti-corrosion frame, liquid is not prone to accumulation, and the risk that the bottom of the wire box body is corroded is effectively reduced; and the service life of the wire box is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of marine junction boxes, and more specifically, to a moisture-proof and explosion-proof junction box for marine electrical equipment. Background Technology

[0002] In marine electrical systems, moisture-proof and explosion-proof junction boxes are key components for ensuring the safe operation of electrical equipment.

[0003] Traditional moisture-proof and explosion-proof junction boxes for marine electrical equipment are typically installed directly against walls, equipment, or other surfaces. During navigation, rain and seawater splashes can cause liquid to accumulate at the contact point. Prolonged exposure to this humid environment can easily lead to corrosion of the junction box's bottom, affecting its overall structural strength, moisture-proof and explosion-proof performance, and shortening its lifespan. Furthermore, the sealing cap of the junction box is directly connected to the main body, and the seal at this connection gradually weakens over time. If liquid enters the connection area, it increases friction, making the cap difficult to open. This significantly hinders routine inspection, maintenance, and repair, and may even delay troubleshooting, threatening the safe operation of the ship's electrical system. Therefore, inventing a moisture-proof and explosion-proof junction box for marine electrical equipment to address these problems has become a pressing issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a moisture-proof and explosion-proof junction box for marine electrical equipment, which aims to improve the problems that the bottom of the junction box is easily corroded when it is in a humid environment for a long time, and that the sealing performance of the junction box cover will gradually decrease with long-term use.

[0005] This utility model is achieved as follows: a moisture-proof and explosion-proof junction box for marine electrical equipment, comprising...

[0006] A junction box body, the junction box body including a junction box assembly;

[0007] A junction box sealing auxiliary mechanism includes a sealing cover, which includes a cover plate. The bottom of the cover plate is provided with an outer protective ring and an inner protective ring. The middle of the outer protective ring and the inner protective ring are sealed and fitted onto the top of the junction box assembly. An anti-corrosion frame is provided at the bottom of the junction box assembly. The top of the anti-corrosion frame is evenly installed at the bottom of the junction box assembly. The bottom of the anti-corrosion frame is installed with the wall or equipment surface.

[0008] In a preferred embodiment of this utility model, the outer wall of the junction box assembly is provided with multiple wire-threading tubes that are equally divided and connected, and each wire-threading tube is provided with a sealing joint on its exterior.

[0009] In a preferred embodiment of this utility model, a cover mounting ring is provided on the top of the wire box assembly, and the cover mounting ring is located between the outer protective ring and the inner protective ring.

[0010] In a preferred embodiment of this utility model, the inner wall of the cover mounting ring is provided with threads, the outer wall of the inner protective ring is provided with threads, and the inner protective ring is threadedly connected to the cover mounting ring.

[0011] In a preferred embodiment of this utility model, a first sealing ring is provided between the outer protective ring and the inner protective ring, and the first sealing ring is located at the top of the cover mounting ring.

[0012] In a preferred embodiment of this utility model, a screwing edge is fixedly installed on the bottom outer edge of the outer protective ring, and a screwing groove is provided on the outside of the screwing edge, and multiple sets of screwing grooves are equally distributed.

[0013] In a preferred embodiment of this utility model, a second sealing ring is provided at the bottom of the screw edge near a corner of the cover mounting ring, and the second sealing ring is sleeved on the bottom of the cover mounting ring.

[0014] In a preferred embodiment of this utility model, the anti-corrosion frame includes a connecting plate, one end of which is fixedly connected to a fixing plate, and the other end of which is fixedly connected to a mounting plate, with a locking bolt provided through the mounting plate.

[0015] In a preferred embodiment of this utility model, the fixing plate and the mounting plate are arranged parallel to each other vertically, the connecting plate is inclined, and all four sides of the fixing plate are inclined.

[0016] In a preferred embodiment of this utility model, the mounting plate has a U-shaped through hole at one end away from the connecting plate, the locking bolt is disposed through the U-shaped through hole, and the fixing plate is fixedly installed at the bottom of the junction box assembly.

[0017] The beneficial effects of this utility model are as follows: The moisture-proof and explosion-proof junction box for marine electrical equipment obtained by the above design avoids direct contact between the bottom of the junction box body and the surface of the wall, equipment, etc., by setting an anti-corrosion frame during use, so that liquid does not easily accumulate, effectively reducing the risk of corrosion of the bottom of the junction box body and extending the service life of the junction box.

[0018] The sealing cover adopts an outer protective ring, an inner protective ring, a first sealing ring, and a second sealing ring, which enhances the sealing performance between the junction box assembly and the sealing cover, prevents liquids and dust from entering the inside of the junction box, and ensures moisture-proof and explosion-proof effects.

[0019] The design of the screw edge and screw groove makes it easy for operators to install and remove the sealing cover, improving work efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of one side of the structure provided by an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of another side of the structure provided for an embodiment of the present utility model;

[0023] Figure 3 A schematic diagram of the sealing cap structure provided for an embodiment of this utility model;

[0024] Figure 4 A schematic diagram of the anti-corrosion frame structure provided for an embodiment of this utility model.

[0025] In the diagram: 100 - Junction box body; 110 - Junction box assembly; 111 - Cable guide tube; 112 - Sealing joint; 113 - Cover mounting ring; 200 - Junction box sealing auxiliary mechanism; 210 - Sealing cover; 211 - Cover plate; 212 - Outer protective ring; 213 - Inner protective ring; 214 - Tightening edge; 215 - Tightening groove; 216 - First sealing ring; 217 - Second sealing ring; 220 - Anti-corrosion frame; 221 - Connecting plate; 222 - Fixing plate; 223 - Mounting plate; 224 - Locking bolt. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a moisture-proof and explosion-proof junction box for marine electrical equipment, comprising...

[0028] The junction box body 100 includes a junction box assembly 110.

[0029] The junction box sealing auxiliary mechanism 200 includes a sealing cover 210, which includes a cover plate 211. The bottom of the cover plate 211 is provided with an outer protective ring 212 and an inner protective ring 213. The middle of the outer protective ring 212 and the inner protective ring 213 are sealed and fitted onto the top of the junction box assembly 110. The bottom of the junction box assembly 110 is provided with an anti-corrosion frame 220. The anti-corrosion frame 220 is evenly installed on the bottom of the junction box assembly 110. The bottom of the anti-corrosion frame 220 is installed with the wall or equipment surface. The anti-corrosion frame 220 is used to support the junction box assembly 110 to prevent the junction box assembly 110 from sticking to the wall or other surfaces. At the same time, the sealing cover 210 further increases the sealing effect.

[0030] The outer wall of the junction box assembly 110 is equally divided and connected with multiple wire guide tubes 111, and sealing connectors 112 are installed on the outside of each wire guide tube 111. A cover mounting ring 113 is provided on the top of the junction box assembly 110, and the cover mounting ring 113 is located between the outer protective ring 212 and the inner protective ring 213.

[0031] Please see Figure 3 and Figure 4 The inner wall of the cover mounting ring 113 is threaded, and the outer wall of the inner protective ring 213 is threaded. The inner protective ring 213 is threadedly connected to the cover mounting ring 113. A first sealing ring 216 is provided between the outer protective ring 212 and the inner protective ring 213. The first sealing ring 216 is located at the top of the cover mounting ring 113 and is used to seal and prevent liquid from entering.

[0032] A screw-on edge 214 is fixedly installed on the bottom outer edge of the outer protective ring 212. A screw-on groove 215 is provided on the outside of the screw-on edge 214. Multiple sets of screw-on grooves 215 are evenly arranged to increase friction and facilitate screwing the screw-on edge 214. A second sealing ring 217 is abutted against the bottom of the screw-on edge 214 near a corner of the cover mounting ring 113. The second sealing ring 217 is sleeved on the bottom of the cover mounting ring 113 and is used for initial sealing.

[0033] The corrosion-resistant frame 220 includes a connecting plate 221, one end of which is fixedly connected to a fixing plate 222, and the other end of which is fixedly connected to a mounting plate 223. A locking bolt 224 is threaded through the mounting plate 223. The fixing plate 222 and the mounting plate 223 are arranged parallel vertically, while the connecting plate 221 is inclined. All four sides of the fixing plate 222 are inclined to prevent liquid accumulation and allow the liquid to slide off quickly.

[0034] The mounting plate 223 has a U-shaped through hole at the end away from the connecting plate 221. The locking bolt 224 is inserted through the U-shaped through hole. The fixing plate 222 is fixedly installed at the bottom of the junction box assembly 110 for easy installation as needed.

[0035] Working principle: The fixing plate 222 of the anti-corrosion bracket 220 is fixedly installed at the bottom of the junction box assembly 110. Then, the mounting plate 223 is connected to the wall, equipment, or other surfaces using locking bolts 224. Due to the inclined setting of the connecting plate 221, the fixing plate 222 and the mounting plate 223 are parallel vertically, and the fixing plate 222 is inclined on all four sides, creating a certain gap between the junction box body 100 and the mounting surface, thus preventing liquid accumulation.

[0036] After the cable is threaded through the cable guide 111 and sealing connector 112 into the junction box assembly 110, the wiring operation is performed. After the wiring is completed, the inner protective ring 213 of the sealing cover 210 is aligned with the cover mounting ring 113 on the top of the junction box assembly 110. The sealing cover 210 is rotated by screwing along the screw groove 214 and the screwing groove 215 to make the inner protective ring 213 threadedly connected to the cover mounting ring 113. At this time, the first sealing ring 216 is located on the top of the cover mounting ring 113, which plays a sealing role; the second sealing ring 217 is sleeved on the bottom of the cover mounting ring 113 to further enhance the sealing effect. If the second sealing ring 217 is damaged, the first sealing ring 216 will still provide a seal.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A moisture-proof and explosion-proof junction box for electrical equipment of a ship, characterized by comprising: Comprising The wire box body includes a wire box assembly; The wire box sealing auxiliary mechanism includes a sealing cover, the sealing cover includes a cover plate, the bottom of the cover plate is respectively provided with an outer protective ring and an inner protective ring, the middle part of the outer protective ring and the inner protective ring is sleeved above the wire box assembly, the bottom of the wire box assembly is provided with an anti-corrosion frame, the upper part of the anti-corrosion frame is equally divided and installed on the bottom of the wire box assembly, and the bottom of the anti-corrosion frame is installed on the wall and the surface of the equipment.

2. A moisture-proof and explosion-proof junction box for electrical equipment of a ship according to claim 1, characterized in that: The outer wall of the wire box assembly is equally divided and communicated and is provided with a plurality of wire penetrating barrels, and the outer part of the wire penetrating barrel is respectively provided with a sealing joint.

3. A moisture-proof and explosion-proof junction box for electrical equipment of a ship according to claim 1, characterized in that: The top of the wire box assembly is provided with a cover mounting ring, and the cover mounting ring is located between the outer protective ring and the inner protective ring.

4. A moisture-proof and explosion-proof junction box for electrical equipment of a ship according to claim 3, characterized in that: The inner wall of the cover mounting ring is provided with a thread, the outer wall of the inner protective ring is provided with a thread, and the inner protective ring is threadedly connected with the cover mounting ring.

5. A moisture-proof and explosion-proof junction box for electrical equipment of a ship according to claim 4, characterized in that: A first sealing ring is arranged between the outer protective ring and the inner protective ring, and the first sealing ring is located at the top of the cover mounting ring.

6. A moisture-proof and explosion-proof junction box for electrical equipment of a ship according to claim 4, characterized in that: The bottom outer edge of the outer protective ring is fixedly provided with a screwing edge, the outer part of the screwing edge is provided with a screwing groove, and a plurality of groups of screwing grooves are equally arranged.

7. A marine electrical equipment moisture and explosion proof junction box as defined in claim 6 wherein: The bottom of the screwing edge is abutted below an angle close to the cover mounting ring and is provided with a second sealing ring, and the second sealing ring is sleeved on the bottom of the cover mounting ring.

8. A moisture-proof and explosion-proof junction box for electrical equipment of a ship according to claim 1, characterized in that: The anti-corrosion frame includes a connecting plate, one end of the connecting plate is fixedly connected with a fixed plate, the other end of the connecting plate is fixedly connected with a mounting plate, and a locking bolt is penetratingly arranged on the mounting plate.

9. A marine electrical equipment moisture and explosion proof junction box as defined in claim 8 wherein: The fixed plate and the mounting plate are arranged in parallel, the connecting plate is arranged obliquely, and the four surfaces of the fixed plate are all arranged obliquely.

10. A moisture-proof and explosion-proof junction box for electrical equipment of a ship according to claim 8, characterized in that: A U-shaped through hole is formed in the end of the mounting plate away from the connecting plate, the locking bolt is penetratingly arranged in the U-shaped through hole, and the fixed plate is fixedly installed on the bottom of the wire box assembly.