Injection molding connector structure for automobile EPB wire harness assembly

By adopting the injection molded connector structure, locking components and tightening mechanism design in the automotive EPB wire harness assembly connector, the problems of poor waterproof performance and relative movement of the plug and socket are solved, achieving higher waterproofing effect and stable connection.

CN223007014UActive Publication Date: 2025-06-20SHIYAN PUOU AUTOMOTIVE ELECTRIC CO LTD
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Patent Information

Application Number
CN202421902584.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-06
Publication Date
2025-06-20
Estimated Expiration
2034-08-06

AI Technical Summary

Technical Problem

The existing automotive EPB wiring harness assembly connectors have poor waterproof performance, and the plug and socket may move relatively during driving, resulting in wear.

Method used

The injection molded connector structure is adopted to form a seal through the injection molded housing and sealing gasket, combining the locking assembly and the tightening mechanism to ensure a stable connection between the plug and the socket.

Benefits of technology

Improves the waterproof performance of the connector, and through the design of the locking assembly and tightening mechanism, the relative movement of the plug and socket is avoided, the stability of the connection is enhanced, and the wear is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an injection molding connector structure used for an automobile EPB wire harness assembly. The injection molding connector structure comprises a socket and a plug. The socket further comprises a first injection molding shell, the first injection molding shell with an end opening is arranged outside the socket, and a sealing gasket is arranged on the edge of the opening of the first injection molding shell; the outer part of the plug is provided with the second injection molding shell of which the end part is opened and the first injection molding shell is inserted into the second injection molding shell; and the locking assembly is arranged on the first injection molding shell and the second injection molding shell, and after the first injection molding shell and the second injection molding shell are connected in an inserted mode, locking is provided through the locking assembly. The shells of the socket and the plug are integrally formed through injection molding, gaps generated in assembly are avoided, further, after the socket and the plug are connected in an inserted mode, the first injection molding shell is inserted into the second injection molding shell, the sealing gasket at the sealing opening of the first injection molding shell is pressed to the inner wall of the closed end of the second injection molding shell, and therefore a closed space is defined. And the waterproof effect is ensured.
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Description

Technical Field

[0001] The utility model relates to the field of automotive EPB wiring harness assembly connectors, and particularly to an injection connector structure for an automotive EPB wiring harness assembly. Background Art

[0002] Automotive EPB wiring harness assemblies and their connectors are important components in automotive electrical systems, which are responsible for transmitting power, signals, and control instructions to various parts of the vehicle.

[0003] Currently, the EPB wiring harness assembly connectors in the prior art are assembled by a sheath and crimp terminals, and their waterproof performance is poor; at the same time, after the socket and plug of the connector are plugged in, there is generally a locking structure, but due to insufficient processing accuracy, there may be a gap after the socket and plug are connected. During vehicle driving, relative movement may occur between the socket and the plug, which may cause wear. Summary of the Utility Model

[0004] The utility model provides an injection connector structure for an automotive EPB wiring harness assembly to solve the technical problems of poor waterproof performance and lack of further limit between the plug and the socket.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides an injection connector structure for an automotive EPB wiring harness assembly, including a socket and a plug; further including: a first injection housing, the outside of the socket is provided with a first injection housing with an open end, and a sealing gasket is arranged at the opening edge of the first injection housing; a second injection housing, the outside of the plug is provided with a second injection housing with an open end for inserting the first injection housing; a locking component, the locking component is arranged on the first injection housing and the second injection housing, and after the first injection housing and the second injection housing are plugged in, locking is provided by the locking component; a pressing mechanism, the pressing mechanism is arranged on the outer wall of the first injection housing, and when the first injection housing is inserted into the second injection housing, the inner wall of the second injection housing is pressed by the pressing mechanism.

[0007] In this technical solution, through the injection molding process, an integral first injection housing and second injection housing are formed, so that there is no gap in the housing. During the injection molding process, the high-voltage terminal is directly inserted into the injection mold and encapsulated by high-voltage injection molding, improving the waterproof performance; further, after the plug and the socket are plugged in, a closed space is formed to provide guarantee for the waterproof performance.

[0008] Preferably, the locking component includes an inlay seat, the inlay seat is arranged at the top of the first injection housing, and the top of the second injection housing protrudes upward to form an inlay groove for inserting the inlay seat.

[0009] In this technical solution, the socket is used to be inserted into the slot.

[0010] Preferably, the socket is arched, and a transverse groove with both ends open is formed between the socket and the outer wall of the top of the first injection molded housing.

[0011] In this technical solution, the design with both ends open provides space for locking and unlocking.

[0012] Preferably, a locking tongue is fixedly connected inside the socket, and a transverse elastic strip is installed in the slot.

[0013] In this technical solution, the locking tongue is used to squeeze the elastic strip to deform the elastic strip.

[0014] Preferably, a lock hole for the locking tongue to be inserted into is formed on the elastic strip.

[0015] In this technical solution, the locking tongue is aligned with the lock hole, and the locking tongue is inserted into the lock hole to provide locking.

[0016] Preferably, arc-shaped surfaces are provided on one side of the locking tongue and one end of the elastic strip.

[0017] In this technical solution, through the design of the arc-shaped surface, the locking tongue squeezes the elastic elastic strip, which can deform the elastic strip to avoid the locking tongue and enable the locking tongue to move towards the movement of the movement mechanism.

[0018] Preferably, the pressing mechanism includes a pressing strip and a spring; a concave hole is formed on the outer side wall of the first injection molded housing, the spring is arranged in the concave hole, and one end of the spring is fixedly connected to the wall of the concave hole; the other end of the spring extends out of the concave hole and is fixedly connected to the pressing strip.

[0019] In this technical solution, the pressing mechanism provides a force for the pressing strip to press the second injection molded housing through the compression deformation of the spring.

[0020] Preferably, a pressure-receiving inclined surface is provided at the end of the pressing strip.

[0021] In this technical solution, the pressure-receiving inclined surface is squeezed, causing the pressing strip to approach the outer wall of the first housing.

[0022] Preferably, an extrusion inclined surface adapted to the pressure-receiving inclined surface is provided on the inner edge at the opening of the second injection molded housing.

[0023] In this technical solution, the extrusion inclined surface is used to squeeze the pressure-receiving inclined surface.

[0024] Preferably, a buckle is fixedly installed at the bottom of the socket.

[0025] In this technical solution, the buckle is used for the socket to be clamped with the card hole on the vehicle to achieve overall fixation.

[0026] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0027] The positive and progressive effects of the utility model are:

[0028] In the above-mentioned injection-molded connector structure for an automotive EPB wiring harness assembly, the outer shells of the socket and the plug are both integrally molded by injection molding to avoid gaps during assembly. Furthermore, after the socket and the plug are plugged in, the first injection-molded shell is inserted into the second injection-molded shell, and the sealing gasket at the sealing opening of the first injection-molded shell is pressed onto the inner wall of the closed end of the second injection-molded shell, thereby enclosing a closed space, providing closed protection for the internal structure of the plug and the socket, and ensuring a waterproof effect; and through the arrangement of a locking component and a tightening mechanism, after the plug and the socket are plugged in, while the locking component provides locking, the second injection-molded shell is pressed by the tightening mechanism on the first injection-molded shell to generate a static friction limit between the two. Compared with the traditional technology of locking only by the locking component, the stability of the connection is improved, and relative movement and wear between the plug and the socket due to vibration are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure in which the socket and the plug of the utility model are connected to the EPB wiring harness of an automobile.

[0030] Figure 2 It is a schematic diagram of the structure of the outside of the socket of the utility model.

[0031] Figure 3 It is a schematic diagram of the cross-sectional structure of the socket of the utility model.

[0032] Figure 4 It is a schematic diagram of the cross-sectional structure of the plug of the utility model.

[0033] Figure 5 It is a structural schematic diagram of the tightening mechanism and the extrusion slope of the utility model.

[0034] Description of Reference Numerals

[0035] 1. socket; 101. first injection-molded housing; 102. nesting seat; 1021. transverse groove; 103. locking tongue; 104. tightening mechanism; 1041. pressure strip; 1042. pressure-bearing inclined surface; 1043. spring; 105. concave hole;

[0036] 2. Plug; 201. Second injection-molded housing; 202. Embedded groove; 203. Elastic strip; 204. Lock hole; 205. Extrusion slope;

[0037] 3. Buckle;

[0038] 4. Sealing gasket;

[0039] 5. Injection - molded fixed card seat;

[0040] a. Automotive EPB wiring harness. Specific implementation manner

[0041] The present utility model will be further described below by way of embodiments, but the present utility model is not limited to the scope of the described embodiments.

[0042] As Figures 1-5 shown, an injection - molded connector structure for an automotive EPB wiring harness assembly includes a socket 1 and a plug 2; further includes: a first injection - molded housing 101, the outside of the socket 1 is provided with a first injection - molded housing 101 with an open end, and a sealing gasket 4 is arranged at the opening edge of the first injection - molded housing 101; a second injection - molded housing 201, the outside of the plug 2 is provided with a second injection - molded housing 201 with an open end for the insertion of the first injection - molded housing 101; a locking assembly, the locking assembly is arranged on the first injection - molded housing 101 and the second injection - molded housing 201, after the first injection - molded housing 101 and the second injection - molded housing 201 are plugged together, locking is provided by the locking assembly; a pressing mechanism 104, the pressing mechanism 104 is arranged on the outer wall of the first injection - molded housing 101, when the first injection - molded housing 101 is inserted into the second injection - molded housing 201, the inner wall of the second injection - molded housing 201 is pressed by the pressing mechanism 104.

[0043] As Figure 1 shown, this injection - molded connector structure is applied to an automotive EPB wiring harness a assembly, so that both ends of the automotive EPB wiring harness a assembly are a socket 1 and a plug 2 respectively. When connecting different automotive EPB wiring harness a assemblies, they are plugged together through the plug 2 and the socket 1.

[0044] A plurality of injection - molded fixed card seats 5 are fixedly installed on the automotive EPB wiring harness a; according to the specific vehicle conditions, the card positions can be customized for clamping on the vehicle to prevent the phenomenon of falling off during bumpy driving.

[0045] As Figures 2-4As shown, the locking component includes an insert base 102 which is arranged on the top of the first injection-molded housing 101. The top of the second injection-molded housing 201 protrudes upward to form an insertion groove 202 for the insert base 102 to be inserted into; the insert base 102 is arched, and a transverse groove 1021 with both ends open is formed between the insert base 102 and the outer wall of the top of the first injection-molded housing 101; a locking tongue 103 is fixedly connected inside the insert base 102, and a transverse elastic strip 203 is installed in the insertion groove 202; a locking hole 204 for the locking tongue 103 to be inserted into is formed on the elastic strip 203; arc-shaped surfaces are arranged on one side of the locking tongue 103 and one end of the elastic strip 203.

[0046] During the insertion process of the socket 1 and the plug 2, by aligning the insert base 102 with the insertion groove 202, the insert base 102 is inserted into the insertion groove 202, and the first injection-molded housing 101 is inserted into the second injection-molded housing 201. The arc-shaped surface of the locking tongue 103 presses the top side of the arc-shaped surface of the elastic strip 203, so that the elastic strip 203 generates an elastic deformation downward. After the locking tongue 103 and the locking hole 204 are aligned, the elastic strip 203 resets by elastic force, so that the locking tongue 103 and the locking hole 204 are inserted and locked; after the above installation, the sealing gasket 4 at the open end of the first injection-molded housing 101 presses on the inner wall of the closed end of the second injection-molded housing 201, thus enclosing a sealed space to provide dust and water protection for the electrical connection between the socket 1 and the plug 2.

[0047] Both the first injection-molded housing 101 and the second injection-molded housing 201 have only one opening, and other positions are closed. The purpose of leaving the opening is to connect the electrical connection structure between the plug 2 and the socket 1.

[0048] The transverse groove 1021 is used for the insertion of the elastic strip 203 during locking, so that the elastic strip 203 is connected to the locking tongue 103 in the transverse groove 1021.

[0049] When in the locked state, both ends of the transverse groove 1021 are open, and one end faces the opening of the second injection-molded housing 201; when unlocking, a rod is inserted into the transverse groove 1021 to press down the elastic strip 203, so that the locking hole 204 is separated from the locking tongue 103, and then the socket 1 is pulled to separate the socket 1 from the plug 2.

[0050] Such as Figure 2 And Figure 5As shown, the pressing mechanism 104 includes a pressing strip 1041 and a spring 1043; a concave hole 105 is formed in the outer side wall of the first injection-molded housing 101, the spring 1043 is arranged in the concave hole 105, and one end of the spring 1043 is fixedly connected to the wall of the concave hole 105; the other end of the spring 1043 extends out of the concave hole 105 and is fixedly connected to the pressing strip 1041; a pressure-receiving inclined surface 1042 is arranged at the end of the pressing strip 1041; an extrusion inclined surface 205 adapted to the pressure-receiving inclined surface 1042 is arranged at the inner edge of the opening of the second injection-molded housing 201.

[0051] During the insertion process of the socket 1 and the plug 2, as Figure 5 shown, this is the state before insertion. When the first injection-molded housing 101 is moved into the second injection-molded housing 201, the pressure-receiving inclined surface 1042 is extruded through the extrusion inclined surface 205, so that the pressing strip 1041 approaches the outer wall of the first injection-molded housing 101, compressing the spring 1043. Until after the insertion is completed, the spring 1043 reaches the maximum compression amount, so that the pressing strip 1041 presses against the inner wall of the second injection-molded housing 201, increasing the static friction force to achieve the limiting effect.

[0052] A buckle 3 is fixedly installed at the bottom of the socket 1, and the buckle 3 is used for the socket 1 to be snap-connected with a card hole on the vehicle.

[0053] The present invention is not limited to the above embodiments. No matter what changes are made in its shape or structure, they all fall within the protection scope of the present invention. The protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An injection molded connector structure for an automotive EPB wiring harness assembly, comprising a socket (1) and a plug (2); characterized in that: Also includes: A first injection-molded shell (101), wherein the socket (1) is provided with a first injection-molded shell (101) with an open end outside, and a sealing gasket (4) is provided at the edge of the opening of the first injection-molded shell (101); A second injection-molded housing (201), the plug (2) being provided with an end opening on the outside thereof and being used for inserting the first injection-molded housing (101); A locking assembly, the locking assembly being arranged on the first injection-molded housing (101) and the second injection-molded housing (201), and providing locking through the locking assembly after the first injection-molded housing (101) and the second injection-molded housing (201) are plugged together; A tightening mechanism (104), wherein the tightening mechanism (104) is arranged on the outer wall of the first injection-molded shell (101); the first injection-molded shell (101) is inserted into the second injection-molded shell (201); and the inner wall of the second injection-molded shell (201) is pressed by the tightening mechanism (104).

2. The injection molded connector structure for an automotive EPB wiring harness assembly according to claim 1, characterized in that: The locking assembly comprises an insert seat (102), wherein the insert seat (102) is arranged on the top of the first injection-molded shell (101), and the top of the second injection-molded shell (201) protrudes upward to form an insert groove (202) for inserting the insert seat (102).

3. An injection molded connector structure for an automotive EPB wiring harness assembly as claimed in claim 2, characterized in that: The embedding seat (102) is arched, and a transverse groove (1021) with openings at both ends is formed between the embedding seat (102) and the top outer wall of the first injection-molded shell (101).

4. The injection molded connector structure for an automotive EPB wiring harness assembly as claimed in claim 2, characterized in that: A locking tongue (103) is fixedly connected in the embedding seat (102), and a transverse elastic strip (203) is installed in the embedding groove (202).

5. The injection-molded connector structure for an automotive EPB wiring harness assembly as claimed in claim 4, characterized in that: The elastic strip (203) is provided with a lock hole (204) for the lock tongue (103) to be embedded.

6. The injection molded connector structure for an automotive EPB wiring harness assembly as claimed in claim 4, characterized in that: One side of the locking tongue (103) and one end of the elastic strip (203) are both provided with arc-shaped surfaces.

7. The injection molded connector structure for an automotive EPB wiring harness assembly according to claim 1, characterized in that: The pressing mechanism (104) comprises a pressure strip (1041) and a spring (1043); a concave hole (105) is provided on the outer wall of the first injection-molded shell (101); the spring (1043) is arranged in the concave hole (105); one end of the spring (1043) is fixedly connected to the wall of the concave hole (105); the other end of the spring (1043) extends out of the concave hole (105) and is fixedly connected to the pressure strip (1041).

8. An injection molded connector structure for an automotive EPB wiring harness assembly as claimed in claim 7, characterized in that: The end of the pressure strip (1041) is provided with a pressure-bearing inclined surface (1042).

9. An injection-molded connector structure for an automotive EPB wiring harness assembly as claimed in claim 8, characterized in that: An extrusion slope (205) adapted to the pressure slope (1042) is provided on the inner edge of the opening of the second injection-molded shell (201).

10. The injection molded connector structure for an automotive EPB wiring harness assembly according to claim 1, characterized in that: A buckle (3) is fixedly mounted on the bottom of the socket (1).