Wiring connector

Abstract

The utility model relates to a wiring connector, and relates to the technical field of connectors, the wiring connector comprises a rubber shell main body and a plurality of wiring terminals, each wiring terminal comprises a connecting part connected with a cable and a plugging part fixedly arranged at one side of the connecting part, and the rubber shell main body is provided with a mounting cavity for the plugging part to insert; a supporting plate inclining towards the connecting part is fixedly arranged on the side wall of the mounting cavity, a locking buckle is fixedly arranged on the supporting plate, a locking notch allowing the locking buckle to be inserted is formed in the inserting part, and a guiding inclined face is arranged on the edge of the side face, facing an opening of the mounting cavity, of the locking buckle; the edge of the side face, away from the opening of the mounting cavity, of the locking buckle is provided with a retaining face abutting against the inner wall of the locking notch. According to the invention, when the insertion part is taken out from the mounting cavity by external force, the retaining surface abuts against the inner wall of the locking notch for limiting, and the tensile property of the insertion part is higher through the fixing mode.

Description

Technical Field

[0001] This application relates to the technical field of connectors, and particularly to a wiring connector. Background Art

[0002] As a core component for current and signal transmission in electronic devices, the quality of a wiring connector is crucial for ensuring the stability and performance of electronic device operation. With the rapid development of electronic technology, the types and application fields of wiring connectors continue to expand, covering multiple key fields such as computers, communication devices, automotive electronics, medical devices, industrial automation, aerospace, and military equipment, becoming an indispensable building block of modern electronic devices.

[0003] In the wave of technological innovation in wiring connectors, the utility model patent with the publication number CN212062767U proposed an innovative vertical or horizontal connector design. This connector achieves efficient and stable electrical connection through a precisely designed plastic part and plastic housing plug-in structure, combined with a unique contact pin and terminal wire harness connection method. In particular, the contact pin adopts a vertical or horizontal installation structure, and a U-shaped opening is cleverly set to firmly hold the terminal wire harness. At the same time, the terminal guide groove and support block design of the plastic housing further enhance the reliability of the connection.

[0004] However, when deeply evaluating this technical solution, we noticed a potential improvement point. Specifically, although this design can exhibit good connection performance under normal conditions, in the face of extreme usage conditions such as external tensile forces, the relevant hook fixing mechanism may appear to have insufficient tensile resistance. Long-term or sudden external forces may cause permanent deformation of the hook, thereby weakening the connection tightness between the wire harness and the plastic housing, ultimately affecting the overall performance and service life of the connector, and there is room for improvement. Utility Model Content

[0005] The purpose of this application is to provide a wiring connector to solve the problem that the internal hook of the wiring terminal structure may be permanently deformed when subjected to external traction in the above related technologies, resulting in weak tensile resistance and affecting the subsequent use performance of the wiring terminal.

[0006] A wiring connector provided by this application adopts the following technical solutions:

[0007] A wiring connector includes a plastic housing body and a plurality of wiring terminals. The wiring terminals include a connecting portion connected to a cable and a plugging portion fixedly provided on one side of the connecting portion. An installation cavity for inserting the plugging portion is formed on the plastic housing body; a support plate inclined towards the connecting portion is fixedly provided on the side wall of the installation cavity, a locking buckle is fixedly provided on the support plate, a locking notch for inserting the locking buckle is formed on the plugging portion, a guiding inclined surface is provided on the side edge of the locking buckle facing the opening of the installation cavity, and a retaining surface abutting against the inner wall of the locking notch is provided on the side edge of the locking buckle away from the opening of the installation cavity.

[0008] By adopting the above technical solution, when the plugging portion is inserted into the installation cavity, after overcoming the extrusion force of the support plate, the support plate is slightly deformed, and then the locking buckle can be snapped into the locking notch along the guiding inclined surface; when an external force removes the plugging portion from the installation cavity, the retaining surface abuts tightly against the inner wall of the locking notch for limiting, and this fixing method makes the tensile performance of the plugging portion stronger.

[0009] Optionally, one side of the support plate is attached to the outer side surface of the plugging portion.

[0010] By adopting the above technical solution, the support plate is used to further limit the plugging portion in the installation cavity, improving the assembly stability of the wiring terminal and the plastic housing body.

[0011] Optionally, a cross plate is fixedly provided on the inner wall of the installation cavity of the plastic housing body, a guiding card strip is fixedly provided on the side surface of the cross plate facing the opening of the installation cavity, the plugging portion is semi-encapsulated, and a guiding notch for inserting the guiding card strip is formed on one side of the plugging portion.

[0012] By adopting the above technical solution, after the wiring terminal and the plastic housing body are installed, due to the arrangement of the guiding card strip and the guiding notch, the guiding card strip is inserted into the corresponding guiding notch, improving the installation stability of the plugging portion.

[0013] Optionally, the guiding card strip and the locking buckle are arranged in a staggered manner.

[0014] By adopting the above technical solution, it is avoided that the locking buckle coincides and abuts against the guiding card strip when locking and plugging, and the space in the installation cavity is more reasonably arranged.

[0015] Optionally, a guiding inclined surface is provided on the side edge of the guiding card strip facing the opening of the installation cavity.

[0016] By adopting the above technical solution, due to the arrangement of the guiding inclined surface, it is convenient for the plugging portion to slide along the guiding inclined surface towards the direction close to the guiding card strip, and the guiding card strip can be better inserted into the guiding notch.

[0017] Optionally, a relief sink is formed on the side of the guiding strip facing the inner wall of the guiding notch.

[0018] By adopting the above technical solution, due to the provision of the relief sink, the raw materials required for the production of the plastic shell body are saved, and the production cost is reduced.

[0019] Optionally, an extended positioning piece is fixedly provided on the edge of the end of the insertion part far from the connection part.

[0020] By adopting the above technical solution, due to the provision of the extended positioning piece, the contact area between the insertion part and the guiding strip is increased, and the assembly stability of the plastic shell body and the wiring terminal is improved.

[0021] Optionally, a positioning inclined surface is provided on the edge of the side of the extended positioning piece far from the insertion part.

[0022] By adopting the above technical solution, it is convenient for the extended positioning piece to slide along the positioning inclined surface to the fitting surface with the guiding strip.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When the insertion part is inserted into the installation cavity, after overcoming the extrusion force of the support plate, the support plate is slightly deformed, and then the locking buckle can be snapped into the locking notch along the guiding inclined surface; when an external force removes the insertion part from the installation cavity, the anti-withdrawal surface abuts against the inner wall of the locking notch for limiting, and this fixing method makes the tensile property of the insertion part stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0026] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 is an exploded schematic diagram of an embodiment of the present application;

[0028] Figure 3 is a schematic diagram of the structure showing the installation and cooperation of the connection part and the insertion part in an embodiment of the present application;

[0029] Figure 4 is a cross-sectional schematic diagram of the structure showing the assembly and cooperation of the wiring terminal and the plastic shell body in an embodiment of the present application;

[0030] Figure 5 is Figure 4Enlarged schematic diagram of part A

[0031] In the figure, 1 is the plastic shell body; 11 is the installation cavity; 12 is the support plate; 13 is the locking buckle; 131 is the guiding inclined surface; 132 is the anti-retreat surface; 14 is the horizontal plate; 15 is the guiding strip; 151 is the guiding inclined surface; 152 is the recessed groove for clearance; 2 is the wiring terminal; 21 is the connecting part; 22 is the inserting part; 221 is the locking notch; 222 is the guiding notch; 23 is the extended positioning piece; 231 is the positioning inclined surface Specific implementation mode

[0032] The following further elaborates on the present application in conjunction with all the attached drawings

[0033] Embodiment

[0034] Refer to Figure 1 and Figure 2 , a wiring connector includes a plastic shell body 1 and two wiring terminals 2, where the plastic shell body 1 is made of plastic and the wiring terminal 2 is made of conductive metal; the wiring terminal 2 includes a connecting part 21 connected to the cable and an inserting part 22 fixed on one side of the connecting part 21, and an installation cavity 11 for inserting and fixing the inserting part 22 is formed on the plastic shell body 1

[0035] Refer to Figure 3 , Figure 4 and Figure 5 , a support plate 12 inclined towards the connecting part 21 is integrally formed on the side wall of the installation cavity 11, a locking buckle 13 is integrally formed on the support plate 12, and a locking notch 221 for inserting the locking buckle 13 is formed on the inserting part 22; a guiding inclined surface 131 is provided on the side edge of the locking buckle 13 facing the opening of the installation cavity 11, and an anti-retreat surface 132 in contact with the inner wall of the locking notch 221 is provided on the side edge away from the opening of the installation cavity 11

[0036] One side of the support plate 12 is attached to the outer side surface of the inserting part 22, and the support plate 12 is used to further limit the inserting part 22 located in the installation cavity 11, improving the assembly stability of the wiring terminal 2 and the plastic shell body 1; when the inserting part 22 is inserted into the installation cavity 11, the support plate 12 is slightly deformed after overcoming the extrusion force of the support plate 12, and then the locking buckle 13 can be inserted into the locking notch 221 along the guiding inclined surface 131; when the inserting part 22 is taken out of the installation cavity 11 by an external force, it is tightly limited by the contact between the anti-retreat surface 132 and the inner wall of the locking notch 221

[0037] Refer to Figure 4, a transverse plate 14 is integrally formed on the inner wall of the installation cavity 11 of the plastic shell body 1, and a guiding card strip 15 is integrally formed on the side surface of the transverse plate 14 facing the opening of the installation cavity 11. The plugging part 22 is arranged in a semi - enclosed manner, and a guiding notch 222 for inserting the guiding card strip 15 is formed on one side of the plugging part 22;

[0038] After the wiring terminal 2 and the plastic shell body 1 are installed, the guiding card strip 15 is inserted into the corresponding guiding notch 222; and the guiding card strip 15 is arranged in a dislocation manner with the locking buckle 13 to prevent the locking buckle 13 from overlapping and abutting against the guiding card strip 15 during locking plugging, so as to more reasonably layout the space in the installation cavity 11.

[0039] Refer to Figure 4 , a guiding inclined surface 151 is provided on the side edge of the guiding card strip 15 facing the opening of the installation cavity 11, which is convenient for the plugging part 22 to slide along the guiding inclined surface 151 towards the direction close to the guiding card strip 15; a relief sinking groove 152 is formed on the side surface of the guiding card strip 15 facing the inner wall of the guiding notch 222, which saves the raw materials required for the production of the plastic shell body 1 and reduces the production cost.

[0040] Refer to Figure 3 and Figure 4 , an extended positioning piece 23 is fixedly arranged on the edge of the end of the plugging part 22 far from the connecting part 21, and a positioning inclined surface 231 is provided on the side edge of the extended positioning piece 23 far from the plugging part 22; the abutting area between the plugging part 22 and the guiding card strip 15 is increased through the extended positioning piece 23, and the assembly stability of the plastic shell body 1 and the wiring terminal 2 is improved.

[0041] The implementation principle of the embodiment of this application is:

[0042] When the plugging part 22 is inserted into the installation cavity 11, after overcoming the extrusion force of the support plate 12, the support plate 12 is slightly deformed, and then the plugging part 22 slides along the guiding inclined surface 151 towards the direction close to the guiding card strip 15, so that the guiding card strip 15 is inserted into the corresponding guiding notch 222, and finally the locking buckle 13 can be snapped into the locking notch 221 along the guiding inclined surface 131; when an external force takes out the plugging part 22 from the installation cavity 11, it is tightly limited by the abutting of the anti - retreat surface 132 against the inner wall of the locking notch 221.

[0043] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meanings understood by those of ordinary skill in the art to which this application pertains. The words "first", "second", "third" and similar terms used in the text of this application do not denote any order, quantity or importance, but are only used to distinguish different components. Similar terms such as "a" or "an" do not denote a quantity limitation either, but indicate the existence of at least one. Similar terms such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "upper", "lower", "left", "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0044] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A wiring connector, comprising a plastic housing body (1) and a plurality of wiring terminals (2). The wiring terminals (2) include a connecting portion (21) connected to a cable and a plugging portion (22) fixed to one side of the connecting portion (21). An installation cavity (11) for inserting the plugging portion (22) is formed in the plastic housing body (1). It is characterized in that A support plate (12) inclined towards the connecting portion (21) is fixed on the side wall of the installation cavity (11). A locking buckle (13) is fixed on the support plate (12). A locking notch (221) for inserting the locking buckle (13) is formed in the plugging portion (22). A guiding inclined surface (131) is arranged on the side edge of the locking buckle (13) facing the opening of the installation cavity (11). A retaining surface (132) in contact with the inner wall of the locking notch (221) is arranged on the side edge of the locking buckle (13) away from the opening of the installation cavity (11).

2. The wiring connector according to claim 1, characterized in that, One side of the support plate (12) is attached to the outer side surface of the plugging portion (22).

3. The wiring connector according to claim 1, characterized in that, A transverse plate (14) is fixed on the inner wall of the installation cavity (11) of the plastic housing body (1). A guiding strip (15) is fixed on the side surface of the transverse plate (14) facing the opening of the installation cavity (11). The plugging portion (22) is of a semi - enclosed type. A guiding notch (222) for inserting the guiding strip (15) is formed on one side of the plugging portion (22).

4. The wiring connector according to claim 3, characterized in that, The guiding strip (15) and the locking buckle (13) are arranged in a staggered manner.

5. The wiring connector according to claim 3, characterized in that, A guiding inclined surface (151) is arranged on the side edge of the guiding strip (15) facing the opening of the installation cavity (11).

6. The wiring connector according to claim 3, wherein, A relief sinking groove (152) is formed on the side surface of the guiding strip (15) facing the inner wall of the guiding notch (222).

7. A wiring connector according to claim 3, wherein An extended positioning piece (23) is fixed on the end edge of the plugging portion (22) away from the connecting portion (21).

8. A wiring connector according to claim 7, characterized in that, A positioning inclined surface (231) is arranged on the side edge of the extended positioning piece (23) away from the plugging portion (22).

Images