Electrical junction box capable of preventing electromagnetic interference

Abstract

The utility model discloses an electrical junction box capable of preventing electromagnetic interference. The electrical junction box is characterized by comprising a box body, a cover body and an electromagnetic interference preventing component, the box body is of a square box structure, a wire inlet hole is formed in the box body, a slot opening is formed in the upper portion of the side wall of the box body, and the cover body is matched with the slot opening and connected with the box body in an inserted mode through the slot opening to form a junction box body. The anti-electromagnetic interference component is embedded in the box body and / or the cover body, and the material strength of the anti-electromagnetic interference component is higher than that of the box body and / or the cover body. The electrical junction box capable of preventing electromagnetic interference is reasonable in structure, high in structural strength, good in durability and good in anti-electromagnetic interference effect, improves the safety of the junction box body and the cable, and prolongs the service life of the junction box body and the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of junction boxes, in particular to an electrical junction box capable of preventing electromagnetic interference. Background Art

[0002] The junction box is one of the electrical auxiliary materials that protects and connects wires in home decoration. The wires used for decoration pass through the wire tube, and the junction box is generally used as a transition at the joint of the wire (for example, the line is long, or the wire tube needs to turn a corner). The junction box is usually composed of a box cover, a box body, wiring terminals, diodes, connecting wires, and connectors. The wire tube is connected to the junction box, and the wires in the wire tube are connected in the junction box, which plays a role in protecting and connecting the wires.

[0003] In the process of realizing the utility model, the inventors found that the existing anti-electromagnetic interference junction boxes had the following unresolved problems when in use: first, using all metal materials will increase costs and be difficult to install, which has certain adverse effects; second, gaps are likely to exist at the entry and exit positions of the cables, which leads to a decrease in the overall anti-electromagnetic interference ability, which has certain adverse effects. Utility Model Content

[0004] The purpose of the utility model is to provide an electrical junction box that can prevent electromagnetic interference, which can improve structural strength while reducing costs, and can also improve anti-electromagnetic interference performance, and can completely solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrical junction box capable of preventing electromagnetic interference, comprising a box body, a cover body and an electromagnetic interference prevention component; the box body is a square box structure, on which a wire entry hole is provided, and a slot opening is provided at the upper part of its side wall, the cover body is adapted to the slot opening and is plug-connected to the box body through the slot opening to form a junction box main body; the electromagnetic interference prevention component is embedded in the box body and / or the cover body, and the material strength of the electromagnetic interference prevention component is higher than the material strength of the box body and / or the cover body.

[0006] Preferably, the box body and / or the cover body are made of thermoplastic plastic, and the electromagnetic interference protection component is integrally injection-molded with at least part of the box body and / or the cover body as an insert.

[0007] Preferably, the electromagnetic interference protection component is a mesh structure made of metal material, and at least part of the box body and / or the cover body is embedded in the mesh holes of the mesh structure.

[0008] Preferably, the shape of the electromagnetic interference protection component is matched with the shape of the box body and / or the cover body.

[0009] Preferably, the electromagnetic interference protection component has a mesh hole for avoiding air at the position where the wire entry hole is avoided.

[0010] Preferably, the rear side wall of the box body has a limiting surface abutting against the cover body at the end located at the slot opening.

[0011] Preferably, both side edges of the cover body are in a step structure adapted to the slot opening.

[0012] Preferably, the box body and the cover body are connected by interference fit.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model provides an electrical junction box that can prevent electromagnetic interference. It has a reasonable structure and good anti-electromagnetic interference effect. By respectively embedding anti-electromagnetic interference components with higher material strength inside the box body and the cover body, the overall strength of the junction box can be increased, and damage during use can be avoided, and its service life can be extended. It does not occupy the internal space of the junction box, avoids interference with other components in the box, reduces the complexity of installation by the staff, and is not exposed on the surface of the box body, so as not to affect the overall beauty and neatness of the junction box.

[0015] 2. During the injection molding process, the injection melt enters the multiple meshes and then cools and crystallizes to form a shape. The crystallized plastics in the multiple meshes are integrated with the box body and the cover body respectively. In this way, the combination of the anti-electromagnetic interference component with the box body and the cover body is more complete and reliable;

[0016] 3. The edge ends of both sides of the cover have a step structure to form an inverted T-shaped structure, which requires a certain amount of interference with the slot opening, making the plug-in more secure and preventing loosening, and has a certain dust and chip prevention function;

[0017] 4. The limiting surface is formed by the inner wall at the end of the slot opening of the rear side wall of the box body, and is used to abut against the cover body when assembling the cover body. That is to say, the slot opening of the rear side wall is not through to prevent the cover body from being assembled in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the junction box in the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the box body in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the cover body in the utility model;

[0021] Figure 4 This is the front view of the junction box in the utility model;

[0022] Figure 5 It is a right side view of the junction box in the utility model;

[0023] Figure 6 It is a bottom view of the junction box in the utility model;

[0024] In the figure: 1. box body, 11. wire entry hole, 12. slot opening, 13. limit surface, 2. cover body, 21. step structure, 3. anti-electromagnetic interference component, 31. air-avoiding mesh hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution 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 a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1.

[0027] See also Figures 1 to 6 In this embodiment, an electromagnetic interference-proof electrical junction box comprises a box body 1, a cover body 2 and an electromagnetic interference-proof component 3; the box body 1 is a square box structure, on which a wire entry hole 11 is provided, and a slot opening 12 is provided at the upper part of its side wall, the cover body 2 is adapted to the slot opening 12 and plug-connected with the box body 1 through the slot opening 12 to form a junction box body; the electromagnetic interference-proof component 3 is embedded in the box body 1 and / or the cover body 2, and the material strength of the electromagnetic interference-proof component 3 is higher than the material strength of the box body 1 and / or the cover body 2. In this embodiment, the electromagnetic interference-proof component 3 is preferably embedded in the box body 1 and the cover body 2. It can be understood that the cover body 2 and the box body 1 are plug-connected, and the two are separate, so the electromagnetic interference-proof component 3 here is not only a single material, but a single or multiple formed assembly respectively embedded in the box body 1 or the cover body 2.

[0028] It should be noted that connection terminals and other functional components are provided inside the box body 1, which belong to the prior art and will not be described in detail.

[0029] Exemplarily, the material of the box body 1 and the cover body 2 is thermoplastic plastic, and the anti-electromagnetic interference component 3 is integrally injection molded with at least part of the box body 1 and the cover body 2 as an insert. By respectively embedding the anti-electromagnetic interference component 3 with higher material strength inside the box body 1 and the cover body 2, the overall strength of the junction box can be increased, damage during use can be avoided, and its service life can be extended. It does not occupy the internal space of the junction box, avoids interference with other components in the box, reduces the complexity of installation by the staff, and is not exposed on the surface of the box body 1, and does not affect the overall beauty and neatness of the junction box. Specifically, the anti-electromagnetic interference component 3 is respectively embedded in the injection mold of the box body 1 and the cover body 2 as an insert, and the anti-electromagnetic interference component 3 is respectively coated into the box body 1 and the cover body 2 through the injection molding process. In another preferred embodiment, the anti-electromagnetic interference component 3 can be at least partially embedded in the box body 1 and integrally molded with the box body 1, or it can be partially exposed on the inside of the box body 1. The electromagnetic interference protection component 3 may be at least partially embedded in the cover body 2 and formed integrally with the cover body 2 , or may be partially exposed on the inner side of the cover body 2 .

[0030] Exemplarily, the electromagnetic interference prevention component 3 is a mesh structure of metal material, and at least part of the box body 1 and the cover body 2 are embedded in the meshes of the mesh structure. During the injection molding process, the injection melt enters the multiple meshes and then cools and crystallizes, and the crystallized plastics in the multiple meshes are respectively integrated with the box body 1 and the cover body 2. In this way, the electromagnetic interference prevention component 3 is more fully and reliably combined with the box body 1 and the cover body 2.

[0031] In another preferred embodiment, the material of the electromagnetic interference prevention component 3 includes but is not limited to: metal, ceramic, carbon fiber, engineering plastic, wood and a combination of the above materials. The electromagnetic interference prevention component 3 is formed by stamping, cutting, milling, turning, drilling, grinding and other processes or a combination of processes.

[0032] Exemplarily, the shape of the electromagnetic interference protection component 3 is respectively matched with the shape of the box body 1 and the cover body 2, thereby ensuring the uniformity and bonding degree of the electromagnetic interference protection component 3 covered by the box body 1 and the cover body 2 during the injection molding process.

[0033] Exemplarily, the electromagnetic interference prevention component 3 has a mesh hole 31 for avoiding the air position of the wire entry hole 11. To meet more complex construction conditions, the wire entry hole 11 can be opened at different positions of the side wall of the box body 1 under appropriate circumstances, and the mesh hole 31 can be adjusted according to the number and arrangement orientation of the wire entry hole 11, and can also be used with cables with electromagnetic shielding layers. This is a prior art and will not be described in detail.

[0034] Exemplarily, the rear side wall of the box body 1 has a limiting surface 13 abutting against the cover body 2 at the end of the slot opening 12. The two side edges of the cover body 2 are stepped structures 21 adapted to the slot opening 12. The box body 1 and the cover body 2 are connected by interference fit through the slot opening 12. The two side edge ends of the cover body 2 have a step structure 21 to form an inverted T-shaped structure, and the fit with the slot opening 12 requires a certain amount of interference, which can make the plug-in more secure and prevent loosening, and has a certain dust and chip prevention function; the limiting surface 13 is formed by the inner wall at the end of the slot opening 12 of the rear side wall of the box body 1, and is used to abut against the cover body 2 when assembling the cover body 2, that is, the slot opening 12 of the rear side wall is not through, to prevent the cover body 2 from being assembled in place.

[0035] In another preferred embodiment, the cover body 2 and the box body 1 can be connected by means of screws, claw buckles, hook locks, hinges, etc.

[0036] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0038] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrical junction box capable of preventing electromagnetic interference, characterized in that: The invention comprises a box body, a cover body and an anti-electromagnetic interference component; the box body is a square box structure, on which a wire entry hole is provided, and a slot opening is provided at the upper part of the side wall; the cover body is adapted to the slot opening and is plug-connected with the box body through the slot opening to form a junction box main body; the anti-electromagnetic interference component is embedded in the box body and / or the cover body, and the material strength of the anti-electromagnetic interference component is higher than the material strength of the box body and / or the cover body.

2. The electromagnetic interference-proof electrical junction box according to claim 1, characterized in that: The box body and / or the cover body are made of thermoplastic plastic, and the electromagnetic interference protection component is used as an insert and is integrally injection-molded with at least a portion of the box body and / or the cover body.

3. The electromagnetic interference-proof electrical junction box according to claim 2, characterized in that: The electromagnetic interference protection component is a mesh structure made of metal material, and at least part of the box body and / or the cover body is embedded in the mesh holes of the mesh structure.

4. The electromagnetic interference-proof electrical junction box according to claim 3, characterized in that: The shape of the electromagnetic interference protection component is matched with the shape of the box body and / or the cover body.

5. The electromagnetic interference-proof electrical junction box according to claim 4, characterized in that: The electromagnetic interference protection component has a mesh hole which is a space-avoiding position of the wire entry hole.

6. An electromagnetic interference-proof electrical junction box according to any one of claims 1 to 5, characterized in that: The rear side wall of the box body has a limiting surface abutting against the cover body at the end located at the slot opening.

7. The electromagnetic interference-proof electrical junction box according to claim 6, characterized in that: The two side edges of the cover body are in a step structure matched with the slot opening.

8. The electromagnetic interference-proof electrical junction box according to claim 7, characterized in that: The box body and the cover body are connected by interference fit.

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