High-flame-proof junction box
By using rock wool bottom pads and mounts made of flame retardant materials in the junction box, the problems of insufficient wall thickness and poor flame retardant effect of traditional junction box are solved, and higher combustion resistance and safety performance are achieved.
Patent Information
- Application Number
- CN202421342047.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The walls of traditional junction boxes are thinner and have weak flame retardant effects, which leads to the wire joints being easily burned through the side walls of the box when they overheated, which poses safety hazards.
A high-proof combustion junction box is designed, using a bottom pad made of rock wool and a mounting base made of flame retardant material. The mounting base is fixed to the inner bottom wall of the box body, and the bottom pad is filled between the mounting base and the inner bottom wall of the box body, increasing the wall thickness of the box body, and preventing the heat on the mounting base from being transferred to the box body through the bottom pad.
By increasing the wall thickness of the box and preventing heat transfer, the wire connectors are effectively prevented from overheating and burning through the side walls of the box, improving the safety performance of the junction box.
Smart Images
Figure CN222884280U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a junction box, and more specifically, to a high-fire-proof junction box. Background Art
[0002] The wires are connected in a junction box, which serves to protect and connect the wires. The outer diameter of the wire connector in the junction box is larger than the rest of the wire. When the wire is overloaded, the heat generated by the wire connector in the junction box is also high, which can easily ignite the junction box. A conventional junction box consists of a box cover and a box body with an opening. The box cover and the box body are spliced to form a sealed container for carrying and protecting the wire connector. No protective device is set in the sealed container, and the flame retardant effect is achieved only by the box cover and the box body made of flame retardant materials. However, the wall thickness of the box cover and the box body is relatively thin, and they can be easily burned through by the overheated wire connector, posing certain safety hazards. Therefore, it is necessary to improve the existing junction box. Utility Model Content
[0003] The technical problem to be solved by the utility model is that the wall thickness of the traditional junction box is relatively thin and the flame retardant effect is relatively weak, thereby providing a high-fireproof junction box to solve the above problem.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] A highly flame-proof junction box comprises a box cover and a box body, wherein the box cover and the box body are spliced to form a sealed cavity, wherein a wiring device is arranged in the sealed cavity, wherein the wiring device comprises a base pad made of rock wool and a mounting seat made of flame-retardant material, wherein the mounting seat is fixed to the inner bottom wall of the box body, the base pad is filled between the mounting seat and the inner bottom wall of the box body, and the mounting seat is provided with a wiring jack and a connecting mechanism for fixing a wire.
[0006] Preferably: the connecting mechanism includes a conductor clamp, a soft filling piece and a pressing block, the conductor clamp is composed of two C-shaped metal rings spliced together to form an ω shape, the soft filling piece is arranged between the conductor clamp and the inner wall of the wiring jack, the resettable pressing block is movably connected to the mounting seat, and both ends of the pressing block are provided with wedge-shaped plugs for inserting into the opening of the conductor clamp.
[0007] Preferably, the pressing block is reset by a compression spring arranged between the pressing block and the conductor clamp.
[0008] Preferably: an elastic pressing plate is arranged on the top wall of the mounting seat, and the elastic pressing plate is connected to the pressing block.
[0009] Preferably: wiring holes are provided at opposite ends of the box body, and waterproof gland connectors are coaxially fixedly provided at the wiring holes.
[0010] Preferably, one side of the box cover is hinged to the box body, and the other side of the box cover is fixedly connected to the box body by screws.
[0011] The beneficial effects of the utility model are as follows: the mounting base serves to connect the wires and has a secondary flame retardant effect, the mounting base increases the wall thickness of the box body, preventing the wire connector from overheating and burning through the side wall of the box body, and the bottom pad between the mounting base and the box body can effectively prevent the heat on the mounting base from being transferred to the box body, further improving the safety performance of the box body. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of a highly flame-retardant junction box;
[0013] Figure 2 is a schematic diagram of the connection mechanism;
[0014] In the figure: 1, box cover; 2, box body; 3, bottom pad; 4, mounting seat; 41, wiring jack; 42, elastic pressure plate; 5, connecting mechanism; 51, conductor clamp; 52, soft filling piece; 53, pressure block; 6, waterproof gland connector. DETAILED DESCRIPTION
[0015] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0016] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.
[0017] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.
[0018] according to Figure 1-2As shown, a highly flame-proof junction box comprises a box cover 1 and a box body 2, the box cover 1 and the box body 2 are spliced to form a sealed cavity, a wiring device is arranged in the sealed cavity, the wiring device comprises a bottom pad 3 made of rock wool and a mounting seat 4 made of flame-retardant material, the mounting seat 4 is fixed to the inner bottom wall of the box body 2, the bottom pad 3 is filled between the mounting seat 4 and the inner bottom wall of the box body 2, and a wiring jack 41 and a connecting mechanism 5 for fixing the wire are arranged on the mounting seat 4. The mounting seat 4 serves to connect the wires and has a secondary flame retardant effect, the mounting seat 4 increases the wall thickness of the box body 2, and prevents the wire joint from overheating and burning through the side wall of the box body 2, and the bottom pad 3 between the mounting seat 4 and the box body 2 can effectively prevent the heat on the mounting seat 4 from being transferred to the box body 2, further improving the safety performance of the box body 2.
[0019] according to Figure 1-2 As shown, the connecting mechanism 5 includes a conductor clamp 51, a soft filling piece 52 and a pressure block 53. The conductor clamp 51 is composed of two C-shaped metal rings spliced together to form an ω shape. The soft filling piece 52 is arranged between the conductor clamp 51 and the inner wall of the wiring jack 41. The resettable pressure block 53 is movably connected to the mounting seat 4. Both ends of the pressure block 53 are provided with wedge-shaped plugs for inserting into the opening of the conductor clamp 51.
[0020] according to Figure 1 As shown, wiring holes are provided at opposite ends of the box body 2, and waterproof gland connectors 6 are coaxially fixedly provided at the wiring holes. One side of the box cover 1 is hinged to the box body 2, and the other side of the box cover 1 is fixedly connected to the box body 2 by screws.
[0021] There are three embodiments of resetting the pressing block 53. One is that the pressing block 53 is reset by a compression spring arranged between the pressing block 53 and the conductor clamp 51. Another is that an elastic pressing plate 42 is arranged on the top wall of the mounting seat 4, and the elastic pressing plate 42 is connected to the pressing block 53. Still another is that a compression spring is arranged between the pressing block 53 and the conductor clamp 51, the top of the mounting seat 4 is integrally provided with an elastic pressing plate 42, and the bottom of the free end of the elastic pressing plate 42 is integrally provided with a protrusion for resisting the pressing block 53. It should be noted here that the third embodiment is preferred in this application.
[0022] according to Figure 1-2 As shown, the mounting seat 4 is provided with three wiring jacks 41, which are used to connect the neutral line, the live line and the ground line respectively. The three wiring jacks 41 have the same shape and size, and are all composed of two circular through holes. When connecting the wires, the two through holes are respectively provided for two wires to be inserted, and both are connected with the conductor clamp. The conductor clamp 51 is made of copper and plays the role of connecting and fixing the two wires. The box cover 1, the box body 2 and the mounting seat 4 are all made of polyolefin flame retardant plastic, polystyrene flame retardant plastic or polyimide flame retardant plastic. The box cover 1, the box body 2 and the mounting seat 4 in this application are made of flame retardant ABS resin. The soft filling member 52 is a C-shaped structure made of polyimide rubber.
[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.
[0025] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A highly flame-proof junction box, comprising a box cover (1) and a box body (2), wherein the box cover (1) and the box body (2) are spliced together to form a sealed cavity, wherein: A wiring device is arranged in the sealed cavity, the wiring device comprising a base pad (3) made of rock wool and a mounting seat (4) made of a flame retardant material, the mounting seat (4) being fixed to the inner bottom wall of the box body (2), the base pad (3) being filled between the mounting seat (4) and the inner bottom wall of the box body (2), and the mounting seat (4) being provided with a wiring jack (41) and a connecting mechanism (5) for fixing a wire.
2. The high-fire-proof junction box according to claim 1 is characterized in that: The connection mechanism (5) comprises a conductor clamp (51), a soft filling piece (52) and a pressing block (53); the conductor clamp (51) is composed of two C-shaped metal rings spliced together to form an ω shape; the soft filling piece (52) is arranged between the conductor clamp (51) and the inner wall of the wiring jack (41); the resettable pressing block (53) is movably connected to the mounting seat (4); and both ends of the pressing block (53) are provided with wedge-shaped plugs for inserting into the opening of the conductor clamp (51).
3. The high-fire-proof junction box according to claim 2 is characterized in that: The pressing block (53) is reset by a compression spring arranged between the pressing block (53) and the conductor clamp (51).
4. The high-fire-proof junction box according to claim 2 is characterized in that: An elastic pressing plate (42) is provided on the top wall of the mounting seat (4), and the elastic pressing plate (42) is connected to the pressing block (53).
5. The high-fire-proof junction box according to any one of claims 1 to 4, characterized in that: Wiring holes are provided at opposite ends of the box body (2), and waterproof gland connectors (6) are coaxially fixedly arranged at the wiring holes.
6. The high-fire-proof junction box according to claim 5 is characterized in that: One side of the box cover (1) is hinged to the box body (2), and the other side of the box cover (1) is fixedly connected to the box body (2) via screws.