Waterproof and insulated split cover type junction box
By combining a split design with a waterproof insulation board, the problems of difficult-to-pull-out junction box and insufficient waterproof insulation are solved, achieving convenient wiring and effective waterproof insulation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-03-31
AI Technical Summary
Existing junction boxes suffer from problems such as inconvenient wiring due to their integrated design and insufficient waterproofing and insulation.
The junction box and outer shell are designed in a split manner, and a waterproof insulating board with an upper waterproof layer, a lower waterproof layer and a polytetrafluoroethylene intermediate insulating layer made of thermoplastic elastomer material is used to achieve pull-out design of the junction box and effective waterproof insulation.
It achieves convenient wiring operations and waterproof insulation of the junction box, ensuring the reliability and waterproof performance of wire connections.
Smart Images

Figure CN224068290U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of junction box technology, specifically a waterproof and insulated split-type cover junction box. Background Technology
[0002] A junction box is a device typically made of plastic or metal, containing multiple terminals for securing and connecting electrical wires. It plays a crucial role in home renovations, industrial electrical connections, and other fields. A well-designed internal structure ensures secure and reliable connections between wires, reducing the occurrence of electrical faults. The use of junction boxes simplifies and speeds up wire connections, improving work efficiency.
[0003] The common junction boxes on the market today generally have the following shortcomings: 1. The internal junction box body and the external shell are designed as one piece, which makes it impossible to pull the junction box body out from the inside of the shell, thus making it inconvenient to perform wiring work inside the junction box body; 2. Its overall waterproof and insulation effect is insufficient, and external rainwater can easily enter the junction box body through the gaps.
[0004] Therefore, it is necessary to design a waterproof and insulated split-type cover junction box to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this utility model is to provide a waterproof and insulated split-type cover junction box to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A waterproof and insulated split-type cover junction box includes an outer shell, a junction box body inside the outer shell, a wiring board for wiring installed inside the junction box body, wiring ports on the left and right sides of the wiring board, wiring screws on the top of the wiring ports, cable entry and exit ports on the shorter sides of the junction box body, connecting cables passing through the cable entry ports, and a waterproof insulating plate on the top of the junction box body.
[0008] The waterproof insulation board includes an upper waterproof layer and a lower waterproof layer located at its top and bottom, and an intermediate insulation layer is provided in the middle of the upper and lower waterproof layers. The upper and lower waterproof layers are made of thermoplastic elastomer material, and the intermediate insulation layer is made of polytetrafluoroethylene.
[0009] As a preferred embodiment of this utility model, sliding blocks are fixedly provided on both sides of the bottom of the junction box, and a sliding groove is provided on the top of the outer shell, with the sliding blocks and the sliding groove being slidably connected.
[0010] As a preferred embodiment of this utility model, notches are provided inside the longer sides of the outer casing, and the junction box is slidably connected to the outer casing through the notches.
[0011] As a preferred embodiment of this utility model, connecting plates are provided on the left and right sides of the waterproof insulating plate, and mounting grooves are provided on the upper sides of the longer side of the outer shell at one end of the junction box. The connecting plates and the mounting grooves are slidably connected inside.
[0012] As a preferred embodiment of this utility model, the outer shell and the junction box are locked and fixed by long rod locking bolts passing through the connecting plate.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. In this utility model, a waterproof and insulated split-type cover junction box is provided. When using this split-type cover junction box, the junction box body and the outer shell are designed separately, so that the junction box body can be pulled out from the outer shell when wiring, which is convenient for wiring operations and facilitates wiring work inside the junction box body.
[0015] 2. In this utility model, a waterproof and insulated split-type cover junction box is provided. When using this split-type cover junction box, a waterproof insulating plate for sealing is provided on the top of the split-type cover junction box. The waterproof insulating plate is designed with an upper waterproof layer, a lower waterproof layer and an intermediate insulating layer, thereby achieving further waterproofing and insulation of the inside of the junction box. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0017] Figure 2 This is a three-dimensional structural diagram of the junction box body of this utility model;
[0018] Figure 3 This is a three-dimensional structural diagram of the junction box body of this utility model after it has been pulled out.
[0019] Figure 4 This is a three-dimensional structural diagram of the waterproof insulation board used in this application.
[0020] In the diagram: 1. Outer casing; 2. Junction box; 3. Terminal block; 4. Wiring port; 5. Wiring screw; 6. Cable entry point; 7. Connecting cable; 8. Sliding block; 9. Sliding groove; 10. Waterproof insulation board; 101. Upper waterproof layer; 102. Lower waterproof layer; 103. Middle insulation layer; 11. Connecting plate; 12. Mounting groove; 13. Long rod locking bolt. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0022] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.
[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0025] For examples, please refer to Figure 1-4 This utility model provides a technical solution:
[0026] A waterproof and insulated split-type cover junction box includes an outer shell 1, a junction box body 2 inside the outer shell 1, a wiring board 3 for wiring is installed inside the junction box body 2, wiring ports 4 are provided on the left and right sides of the wiring board 3, wiring screws 5 are provided on the top of the wiring ports 4, cable penetration openings 6 for inlet and outlet wires are provided on the shorter sides of the junction box body 2 respectively, connecting cables 7 are installed inside the cable penetration openings 6, and a waterproof insulating plate 10 is provided on the top of the junction box body 2.
[0027] In this embodiment, sliding blocks 8 are fixedly provided on both sides of the bottom of the junction box 2, and a sliding groove 9 is provided on the top of the outer shell 1. The sliding blocks 8 and the sliding groove 9 are slidably connected. Notches are provided inside the longer sides of the outer shell 1, and the junction box 2 is slidably connected to the outer shell 1 through the notches. The junction box 2 can be pulled out from the inside of the outer shell 1 by the sliding action between the sliding blocks 8 and the sliding groove 9, so as to realize the split design and facilitate subsequent wiring operations.
[0028] In this embodiment, the waterproof insulation board 10 includes an upper waterproof layer 101 and a lower waterproof layer 102 located at its top and bottom, respectively. An intermediate insulation layer 103 is provided in the middle of the upper waterproof layer 101 and the lower waterproof layer 102. The upper waterproof layer 101 and the lower waterproof layer 102 are made of thermoplastic elastomer material, and the intermediate insulation layer 103 is made of polytetrafluoroethylene. Thus, the upper waterproof layer 101 and the lower waterproof layer 102 made of thermoplastic elastomer material can prevent rainwater from seeping into the junction box 2, and the intermediate insulation layer 103 made of polytetrafluoroethylene can play a certain role in insulation.
[0029] The waterproof insulation board 10 has connecting plates 11 on both sides. The upper side of the longer side of the outer shell 1 is provided with a mounting groove 12 at one end of the junction box 2. The connecting plates 11 and the mounting groove 12 are slidably connected. The outer shell 1 and the junction box 2 are locked and fixed by long rod locking bolts 13 passing through the connecting plates 11, which can realize the installation of the junction box 2 and the waterproof insulation board 10 into the outer shell 1 for subsequent disassembly.
[0030] The working process of this utility model is as follows: When using this waterproof and insulated split-type cover junction box, when wiring is required, the junction box body 2 can be pulled out from the outer shell 1 by the sliding action between the sliding block 8 and the sliding groove 9. Then, the connecting cable 7 is inserted into the junction box body 2 through the cable penetration port 6 on one side and inserted into the wiring port 4 on the wiring board 3. The wiring screw 5 is used to lock and fix it to complete the wiring operation. After the wiring is completed, the junction box body 2 can be pushed back into the outer shell 1. Then, the long rod locking bolt 13 is passed through the corresponding hole above it to lock and fix it. In subsequent use, the upper waterproof layer 101 and the lower waterproof layer 102 made of thermoplastic elastomer material prevent rainwater from seeping into the junction box body 2, and the intermediate insulation layer 103 made of polytetrafluoroethylene provides a certain degree of insulation.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A watertight, insulated split cover type junction box comprising an outer housing (1), characterised in that: The inside of the outer shell (1) is provided with a terminal box (2), the inside of the terminal box (2) is provided with a terminal board (3) for wiring, the left and right sides of the terminal board (3) are provided with terminal ports (4), the top of the terminal port (4) is provided with a terminal screw (5), the two shorter sides of the terminal box (2) are respectively provided with cable through holes (6) for incoming and outgoing lines, the inside of the cable through hole (6) is provided with a connecting cable (7), the top of the terminal box (2) is provided with a waterproof insulation plate (10). The waterproof insulation plate (10) includes an upper waterproof layer (101) and a lower waterproof layer (102) at the top and bottom thereof, an intermediate insulation layer (103) is arranged at the middle position of the upper waterproof layer (101) and the lower waterproof layer (102), the upper waterproof layer (101) and the lower waterproof layer (102) are made of thermoplastic elastomer material, and the intermediate insulation layer (103) is made of polytetrafluoroethylene.
2. A waterproof, insulated split cover junction box according to claim 1, characterized in that: The bottom of the terminal box (2) is fixedly provided with a sliding block (8), and the top of the outer shell (1) is provided with a sliding groove (9).
3. A waterproof, insulated split cover junction box according to claim 1, wherein: The longer sides of the outer shell (1) are internally provided with notches, and the terminal box (2) is slidably connected with the outer shell (1) through the notches.
4. A waterproof, insulated split cover junction box according to claim 1, wherein: The left and right sides of the waterproof insulation plate (10) are provided with connecting plates (11), and the longer sides of the outer shell (1) are provided with mounting grooves (12) at one end of the terminal box (2) on the top of the longer sides.
5. A waterproof, insulated split cover junction box according to claim 1, wherein: The outer shell (1) and the terminal box (2) are locked and fixed by a long rod locking bolt (13) penetrating through the connecting plate (11).