Junction box

The design of the inverted and positioning structures solves the problem of cumbersome terminal block installation in junction boxes, enabling rapid installation and stable connection, reducing costs and improving operational efficiency.

CN223638940UActive Publication Date: 2025-12-05YUEQING GOOD FUTURE ELECTRICAL CO LTD
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Patent Information

Application Number
CN202522262747.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2025-12-05
Estimated Expiration
2035-10-27

AI Technical Summary

Technical Problem

The installation process of the terminal blocks in the existing junction boxes is cumbersome, requiring each screw to be tightened individually, which is inconvenient and has low production efficiency.

Method used

The device employs an inverted and positioning structure. The terminal block is directly pressed into the cavity through the guide bevel and elastically deformed to engage. Combined with the card block and card slot, it achieves rapid installation. The plug is used to cover the wiring hole, and the cover plate is initially fixed by the slot and the plug.

Benefits of technology

It enables rapid installation of terminal blocks, reduces mold complexity and parts costs, improves the flexibility and stability of junction boxes, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a junction box, which comprises a base, a cavity used for installing a terminal seat and a wiring hole communicated with the cavity, a plurality of inverted buckles are formed on the side wall of the cavity, each inverted buckle is provided with a guide inclined plane and a step which are respectively arranged on the upper side and the lower side of the inverted buckle, and after the terminal seat is installed on the base, the steps abut against the top surface of the terminal seat; and the patch is detachably mounted on the base, is arranged adjacent to the wiring hole and is used for shielding the wiring hole. Through the inverted buckle structure, the terminal seat can be directly pressed into the cavity, is guided by the guide inclined plane, is elastically deformed, and is buckled below the step after being in place, so that quick installation is realized, additional parts such as screws and screw caps are omitted, and the complexity of the die and the cost of the parts are reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a wiring box. BACKGROUND

[0002] The terminal seat needs to be fastened and assembled with the plastic base through screws, and the screws need to be tightened one by one in the assembling process, which is complicated and low in production efficiency; it is also very inconvenient to use a screwdriver and other tools in a narrow space, increasing the labor intensity of workers. UTILITY MODEL CONTENTS

[0003] Therefore, the utility model wants to overcome the defect that the terminal seat is inconvenient to install in the prior art, so as to provide a wiring box which is quick and convenient to install.

[0004] Therefore, the utility model provides a wiring box, which comprises a base and a plug-in piece, the base is provided with a cavity for mounting a terminal seat and a wiring hole in communication with the cavity, a plurality of reverse buckles are formed on the side wall of the cavity, the reverse buckles are provided with guide inclined surfaces and steps which are separately arranged on the upper and lower sides of the reverse buckles, wherein the steps are in abutment with the top surface of the terminal seat after the terminal seat is mounted on the base; the plug-in piece is detachably mounted on the base and is arranged adjacent to the wiring hole, and the plug-in piece is used for shielding the wiring hole.

[0005] A positioning structure is arranged between the plug-in piece and the base, the positioning structure comprises a positioning groove arranged on one side of the plug-in piece and the base, and a positioning block arranged on the other side and matched with the positioning groove.

[0006] The base is provided with clamping blocks and clamping grooves on the outer walls of the two oppositely arranged side plates, respectively, wherein the clamping block of one of the two adjacent wiring boxes is clamped into the clamping groove of the other wiring box.

[0007] The clamping groove is a dovetail groove, and the clamping block is a dovetail block matched with the dovetail groove.

[0008] Further comprising a cover plate, the cover plate and the base are assembled through lead sealing screws, and the lead sealing screws are formed with perforations for lead sealing wires.

[0009] An insertion structure is arranged between the cover plate and the base, the insertion structure comprises insertion grooves arranged at four corners of the base, and insertion blocks arranged on the cover plate and matched with the insertion grooves.

[0010] The inner wall of the insertion block is provided with reinforcing ribs.

[0011] The plug-in pieces are mounted on the incoming line side and the outgoing line side of the base.

[0012] The utility model discloses technical scheme has following advantages:

[0013] 1. The utility model provides a terminal box, through the reverse buckle structure, the terminal seat can be directly pressed into the cavity, utilizes the guide slope and guides and occurs the elastic deformation, and after being in position, buckles under the step, realizes quick type installation, and the additional parts such as screw, nut are saved, and the mould complexity and part cost are reduced.

[0014] 2. The utility model provides a terminal box, through the clamping block and the clamping slot, multiple terminal boxes can be easily, firmly and transversely spliced, meets the demand of the junction of different quantity lines, improves the flexibility of application, and the cooperation of the dovetail groove and the dovetail block provides greater contact area and self-locking effect, ensures that the combined structure after splicing is stable, and is not easy to scatter.

[0015] 3. The utility model provides a terminal box, and the cooperation of the insertion slot and the insertion block can position and primarily fix the cover plate in advance before screwing the screw, and is more convenient to install. DRAWINGS

[0016] In order to more clearly illustrate the embodiment of the utility model or the technical scheme in prior art, the following will briefly introduce the drawings needed in the embodiment or prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 It is the assembly schematic view of base, terminal seat and plug-in piece of the utility model;

[0018] Figure 2 It is Figure 1 It is the enlarged structure schematic view of part A;

[0019] Figure 3 It is the explosion structure schematic view of base, terminal seat and plug-in piece;

[0020] Figure 4 It is the structure schematic view of base;

[0021] Figure 5 It is the first perspective view of cover plate;

[0022] Figure 6 It is the second perspective view of cover plate.

[0023] Explanation of reference signs: 1, base; 2, terminal seat; 3, wiring hole; 4, reverse buckle; 5, guide slope; 6, step; 7, plug; 8, positioning groove; 9, positioning block; 10, side plate; 11, clamping block; 12, clamping groove; 13, cover plate; 14, lead seal screw; 15, perforation; 16, insertion slot; 17, insertion block; 18, reinforcing rib; 19, screw. DETAILED DESCRIPTION

[0024] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0028] EMBODIMENT

[0029] The present embodiment provides a terminal box, as shown in Figure 1 and Figure 5 , comprising a base 1, a terminal seat 2, a plug 7 and a cover plate 13.

[0030] The base 1, as shown in Figure 1 and Figure 3As shown, the cavity for mounting the terminal seat 2, and the wiring hole 3 in communication with the cavity, the side wall of the cavity is formed with a plurality of reverse buckling 4, such as Figure 2 As shown, the reverse buckling 4 has a guide slope 5 and a step 6 on the upper and lower sides, respectively, wherein, after the terminal seat 2 is installed on the base 1, the step 6 is in contact with the top surface of the terminal seat 2. As Figure 4 As shown, the base 1 is provided with a clamping block 11 and a clamping groove 12 on the outer wall of the two side plates 10, respectively, wherein, when two adjacent junction boxes are spliced, the clamping block 11 of one junction box is clamped into the clamping groove 12 of the other junction box. In this embodiment, the clamping groove 12 is a dovetail groove, and the clamping block 11 is a dovetail block matched with the dovetail groove. The clamping groove 12 and the clamping block 11 are not limited to the dovetail groove matching mode, but can also be triangular, circular, square and other forms. The terminal seat 2 is provided with a screw 19, which is not limited to a cross slot screw, but can also be an internal hexagonal, external hexagonal, star-shaped or triangular screw. The wiring hole 3 can be not only circular, but also square or polygonal.

[0031] As shown in Figure 1 The plug 7 is detachably mounted on the base 1 and arranged adjacent to the wiring hole 3, and the plug 7 is used to shield the wiring hole 3. The plug 7 and the base 1 are provided with a positioning structure, which comprises a positioning groove 8 arranged on one side of the plug 7 and the base 1, and a positioning block 9 arranged on the other side matched with the positioning groove 8. In this embodiment, the plug 7 is mounted on the incoming line side and the outgoing line side of the base 1.

[0032] The cover plate 13 is assembled with the base 1 through the lead seal screw 14, as shown in Figure 1 、 Figure 5 and Figure 6 As shown, the lead seal screw 14 is formed with a perforation 15 for the lead seal wire, and the cover plate 13 and the base 1 are provided with a plug-in structure, as shown in Figure 4 and Figure 5 The plug-in structure comprises a plug-in groove 16 arranged at the four corners of the base 1 and a plug-in block 17 arranged on the cover plate 13 matched with the plug-in groove 16, and the inner wall of the plug-in block 17 is provided with a reinforcing rib 18.

[0033] The junction box provided by the utility model has the advantages that through the reverse buckling structure, the terminal seat 2 is directly pressed into the cavity, the guide slope 5 is used to guide and elastically deform, and after being in place, it is buckled under the step 6, so that quick installation is realized, and additional parts such as screws and nuts are saved, thereby reducing the complexity of the mold and the cost of parts.

[0034] Obviously, the above embodiments are only examples for clearly illustrating the present application and are not intended to limit the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be enumerated. The changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A terminal block, characterized by The utility model relates to a terminal block, which comprises: a base (1) having a cavity for mounting a terminal block (2) and a wiring hole (3) in communication with the cavity, a plurality of reverse buckles (4) being formed on the side wall of the cavity, the reverse buckles (4) having a guide slope (5) and a step (6) respectively arranged on the upper and lower sides thereof, wherein the step (6) abuts against the top surface of the terminal block (2) after the terminal block (2) is mounted on the base (1); a plug-in piece (7) being detachably mounted on the base (1) and arranged adjacent to the wiring hole (3), the plug-in piece (7) being used for shielding the wiring hole (3).

2. The junction box of claim 1, wherein, A positioning structure is arranged between the plug-in piece (7) and the base (1), the positioning structure comprising a positioning groove (8) arranged on one side of the plug-in piece (7) and the base (1) and a positioning block (9) arranged on the other side and adapted to the positioning groove (8).

3. The terminal block of claim 1 or 2, wherein, The base (1) has a clamping block (11) and a clamping groove (12) respectively arranged on the outer walls of the two oppositely arranged side plates (10), wherein the clamping block (11) of one terminal block is clamped into the clamping groove (12) of the other terminal block when the two terminal blocks are spliced.

4. The junction box of claim 3, wherein, The clamping groove (12) is a dovetail groove, and the clamping block (11) is a dovetail block adapted to the dovetail groove.

5. The junction box of claim 1, wherein, The utility model further comprises a cover plate (13), the cover plate (13) and the base (1) being assembled through a lead seal screw (14), the lead seal screw (14) being formed with a perforation (15) for a lead seal wire to pass through.

6. The junction box of claim 5, wherein, An insertion structure is arranged between the cover plate (13) and the base (1), the insertion structure comprising an insertion groove (16) arranged at four corners of the base (1) and an insertion block (17) arranged on the cover plate (13) and adapted to the insertion groove (16).

7. The junction box of claim 6, wherein, A reinforcing rib (18) is arranged on the inner wall of the insertion block (17).

8. The junction box of claim 1, wherein, The plug-in piece (7) is mounted on the incoming line side and the outgoing line side of the base (1).