Wire harness plugging assembly with protection structure and automobile wire harness

Abstract

A wire harness plugging assembly with a protection structure comprises a male head and a female head, the male head is provided with a plugging hole, the female head comprises a plugging piece, the plugging piece is provided with a plugging head in conductive connection with the plugging hole, the wire harness plugging assembly is characterized in that the outer ring of the male head is provided with a limiting piece, the limiting piece is located on the side close to the outer end and used for limiting the female head to be separated from the male head due to axial movement, and the limiting piece is an elastic piece. The limiting part deforms when the male head is separated from the female head to relieve limitation; the female head further comprises an unlocking piece and a connecting piece, the inner end of the unlocking piece rotationally sleeves the outer side of the plug connector, and the outer end of the unlocking piece extends into the connecting piece and is used for pushing the limiting piece to deform; the inner end of the connecting piece is in threaded connection with the outer end of the unlocking piece, the outer end of the connecting piece is selectively locked with the limiting piece on the male head, and the size of the opening end is matched with that of the sealing ring. The utility model further comprises the wire harness with the plug-in assembly. The wiring harness is convenient to connect, wiring operation and maintenance are facilitated, a sealing structure is arranged, and the waterproof and dustproof grade of the wiring harness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile wiring harnesses, in particular to a wiring harness plug-in assembly with a protective structure and an automobile wiring harness. Background Art

[0002] The automotive wiring harness is the network body of the automotive circuit and the carrier of the automotive circuit. The automotive wiring harness is the bridge and link for the operation of the vehicle's electrical components, and is the nervous system for the vehicle's power and signal transmission and distribution. High-voltage wiring harnesses can be configured in electric vehicles and external wiring harness connections according to different voltage levels. It is mainly used for wiring harness signal distribution inside the distribution box, efficiently and high-quality transmission of electrical energy, and shielding of external signal interference. The high-voltage connection system consists of high-voltage wiring harnesses and connectors, such as DC / DC, water heating PTC charger, air heating PTC, power motor, maintenance switch, inverter, power battery, high-voltage box, AC charging port, etc. All require connectors and high-voltage wiring harnesses. Therefore, the high-voltage wiring harness is the neural network of the high-voltage system of new energy vehicles, which is very important.

[0003] The existing high-voltage wiring harness connector connection is generally fixed with screws after plugging in. This method of wiring is time-consuming, and the sealing of the connector is poor. It is also time-consuming and labor-intensive to disassemble during maintenance, resulting in low maintenance efficiency and high cost. Utility Model Content

[0004] In view of the problems and shortcomings existing in the prior art, the utility model provides a wiring harness plug-in assembly with a protective structure and an automobile wiring harness.

[0005] The technical solution of this utility model is as follows:

[0006] A wiring harness connector assembly with a protective structure comprises a male head and a female head, wherein the male head is provided with a plug hole, and the female head comprises a plug connector, and the plug connector is provided with a plug connector which is conductively connected to the plug hole, and is characterized in that a limiter is provided on the outer ring of the male head, which is located on the side close to the outer end and is used to limit the female head from being separated from the male head due to axial movement, and the limiter is an elastic member, which is used to deform when the male head is separated from the female head to release the restriction; the female head also comprises an unlocking member and a connecting member, the inner end of the unlocking member is rotatably sleeved on the outside of the plug connector, and the outer end extends into the connecting member to push the limiter to deform; the inner end of the connecting member is threadedly connected to the outer end of the unlocking member, and its outer end can be selectively locked with the limiter on the male head, and the size of the opening end matches the size of the sealing ring.

[0007] When plugging in, the outer end of the connector is sleeved on the outside of the male head, the inner side is locked by a limit piece, and sealed by a sealing ring; when disassembling, the unlocking piece can move axially toward the inside of the connector and push the limit piece inward to retract, thereby unlocking the connector.

[0008] The automobile wiring harness comprises the wiring harness plug-in assembly with the protective structure in the above scheme, wherein one end of the male head and the female head of the plug-in assembly are respectively connected to the wire harness, and the other ends are plugged into each other.

[0009] In one embodiment, the male connector is constructed in a stepped cylindrical shape, and the outer diameter of the end portion is small, a plug hole is provided in the center of the end portion, and a stopper is provided on the outside. A sealing groove is provided on the outer ring of the end of the male connector close to the wiring harness for installing a sealing ring. The end of the connector that cooperates with the sealing ring is constructed as a conical sealing surface, and its diameter gradually increases along the side toward the male connector. The stopper is an elastic sheet symmetrically arranged on the outside of the male connector, the two elastic sheets are inclined outward, and the spacing gradually increases along the side pointing to the wiring harness, and the connector is provided with a stopper boss that matches its shape to prevent loosening.

[0010] In one embodiment, the inner ring of the inner end of the connector is provided with an internal thread, and the outer ring of the outer end of the unlocking member is provided with an external thread that matches the internal thread. The inner ring of the connector on the side where the unlocking member is connected to the connector is provided with an internal thread, and the outer ring of the unlocking member on the side where the connector matches the connector is provided with an external thread. When the unlocking member is rotated clockwise, the unlocking member moves axially toward the inside of the connector and pushes the limiting member to shrink toward the center of the male head, losing the positioning effect on the limiting boss of the connector. Then the female head can be pulled off the male head to disconnect the wiring harness.

[0011] In one embodiment, the end of the unlocking member near one end of the male head is configured as a positioning portion, which is used to prevent axial separation from the connecting member; the end of the connecting member connected to the unlocking member is internally configured as a guide groove that cooperates with the positioning portion, and a sealing gasket is provided between the positioning portion and the connecting member. A limiting boss is configured between the guide groove and the sealing portion to prevent the connecting member from separating from the male head. The surface where the limiting boss contacts the limiting member is an inclined surface, and the diameter increases toward the unlocking member, so that the connecting member and the limiting member can be separated easily during disassembly.

[0012] The beneficial effects of the utility model are:

[0013] A limit piece is provided on the male head, and the female head includes an unlocking piece and a connecting piece. A limit boss is provided on the connecting piece to facilitate the plugging and locking of the male head and the female head. The setting of the unlocking piece facilitates the disassembly and separation of the male head and the female head during maintenance. In addition, a sealing ring and a sealing gasket are provided at the connection between the connecting piece and the outside of the male head and at the connection between the unlocking piece and the outside of the connecting piece to improve the waterproof and dustproof effect and reduce the occurrence of leakage or short circuit. Therefore, the wiring harness of the utility model is convenient for connection, wiring operation and maintenance, and is provided with a sealing structure with a high waterproof and dustproof level. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A perspective view of an embodiment;

[0015] Figure 2 is a cross-sectional view of an embodiment;

[0016] Figure 3 This is a stereogram of a male head;

[0017] Figure 4 A stereogram of a female head;

[0018] Figure 5 It is a three-dimensional exploded view of the utility model;

[0019] 100, male connector; 200, female connector; 300, wire harness; 101, plug hole; 102, limiter; 103, sealing groove; 110, sealing ring; 210, plug connector; 220, unlocking member; 221, positioning part; 230, sealing pad; 240, connector; 241, limiter boss; 242, guide groove; 243, sealing surface. DETAILED DESCRIPTION

[0020] The following will further describe the technical means adopted to achieve the predetermined inventive purpose of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0021] See also Figure 1 As shown, the automotive wiring harness includes a wiring harness plug-in assembly with a protective structure and a wiring harness, wherein the wiring harness plug-in assembly with a protective structure includes a male connector 100 and a female connector 200, one end of the male connector 100 and the female connector 200 are respectively connected to the wire harness 300, and the other ends are plugged into each other.

[0022] See also Figure 1 and Figure 2 As shown, the wiring harness connector assembly with a protective structure includes a male connector 100 and a female connector 200. The male connector 100 is provided with a plug hole 101, and the female connector 200 includes a connector 210. The connector 210 is provided with a connector 211 that can be conductively connected to the plug hole 101. When in the connected state, the male connector 100 and the female connector 200 are plugged together, and the connector 210 is plugged into the plug hole 101 and conductively connected.

[0023] See also Figure 2 , Figure 3 and Figure 5 As shown, the outer ring of the male head 100 is provided with a stopper 102, which is located near the outer end and is used to limit the female head 200 from separating from the male head 100 due to axial movement. The stopper 102 is an elastic member, which is used to deform when the male head is separated from the female head to release the restriction. Figure 2 , Figure 4 and Figure 5As shown, the female connector 200 further includes an unlocking member 220 and a connecting member 240. The inner end of the unlocking member 220 is rotatably sleeved on the outer side of the plug connector 210, that is, the end close to the wiring harness is sleeved on the outer side of the plug connector 210, and the outer end extends into the connecting member to push the limiter 102 to deform. The inner end of the connecting member 240 is threadedly connected to the outer end of the unlocking member, and its outer end can be selectively locked with the limiter 102 on the male connector, and the size of the opening end matches the size of the sealing ring 110.

[0024] The end of the connector 240 close to the unlocking member 220 is sleeved on the outer ring of the unlocking member 220 and is slidably connected to the end of the unlocking member 220 away from the wiring harness. The unlocking member 220 can move axially toward the inside of the connector 240. The end of the connector 240 away from the wiring harness can be sleeved on the male connector 100, and the connector 240 is locked with the stopper 102 of the male connector 100 in a free state. When disassembling, the connector 240 and the stopper 102 of the male connector 100 can be unlocked by adjusting the axial position of the disassembly member. A sealing ring 110 is provided between the open end of the connector 240 and the male connector to prevent water and dust from entering the interior of the plug assembly.

[0025] See also Figure 2 As shown, when plugged in, the outer end of the connector 240 is sleeved on the outside of the male connector 100, and the inner side is locked with the male connector 100 through the stopper 102, and is sealed with the male connector 100 through the sealing ring 110. At this time, the plug connector 211 is also plugged into the plug hole 101, and the wiring harness is conductively connected. When disassembling, the unlocking member 220 can move axially toward the inside of the connector 240 and push the stopper 102 to retract inward, so that the stopper 102 and the connector 240 are unlocked, thereby separating the male connector 100 from the female connector 200 and disconnecting the wiring harness.

[0026] See also Figure 3As shown, in one embodiment, the male connector 100 is constructed in a stepped cylindrical shape, and the outer diameter of the end near the female connector 200 is small, and a plug hole 101 is provided in the center, and a stopper 102 is provided on the outside. A sealing groove 103 is provided on the outer ring of one end near the wiring harness, which is used to install a sealing ring 110, and the depth of the sealing groove 103 is less than the diameter of the sealing ring 110. The sealing ring 110 adopts an elastic O-shaped rubber sealing ring 110. One end of the connector 240 that cooperates with the sealing ring 110 is constructed as a conical sealing surface 243, and its diameter gradually increases along the side toward the male connector 100, so that the connector 240 is conveniently sleeved on the male connector 100 during connection, and ensures that the connector 240 and the sealing ring 110 are pressed tightly after the male connector 100 and the female connector 200 are locked, so as to improve the dustproof and waterproof performance and reduce the occurrence of leakage, short circuit and the like. The stopper 102 is an elastic sheet symmetrically arranged on the outside of the male connector 100. The two elastic sheets are inclined outwards, and the distance between them gradually increases along the side pointing to the wiring harness. The connector 240 is provided with a stopper boss 241 that matches its shape to prevent loosening. The stopper 102 uses an inclined elastic sheet, so that when the male connector 100 and the female connector 200 are plugged in and disassembled, the stopper 102 is retracted inwards to reduce the plug-in resistance and facilitate connection. After connection, the stopper 102 is reset to the initial position, which limits the stopper boss 241 and prevents the male connector 100 and the female connector 200 from separating.

[0027] See also Figure 4 As shown, in one embodiment, the inner ring of the connecting member 240 and the outer ring of the unlocking member 220 are threadedly connected to achieve axial sliding fit. The inner ring of the connecting member 240 on the side where the unlocking member 220 is connected is provided with an internal thread, and the outer ring of the unlocking member 220 on the side where the connecting member 240 is matched with the connecting member 240 is provided with an external thread. When the unlocking member 220 is rotated clockwise, the unlocking member 220 moves axially toward the inside of the connecting member 240 and pushes the limiting member 102 to be retracted toward the center of the male connector 100, and loses the positioning effect on the limiting boss 241 of the connecting member 240. Then the female connector 200 can be pulled off from the male connector 100 to disconnect the connection of the wiring harness.

[0028] See also Figure 2 , Figure 4 and Figure 5As shown, in one embodiment, the end of the unlocking member 220 close to one end of the male connector 100 is configured as a positioning portion 221, and the positioning portion 221 is a ring located at the end of the unlocking member 220, which is used to prevent the unlocking member 220 from moving to the end and axially separating from the connecting member 240. The end of the connecting member 240 connected to the unlocking member 220 is internally configured as a guide groove 242 that cooperates with the positioning portion 221, and the positioning portion 221 is slidably arranged in the guide groove 242, and a sealing gasket 230 is arranged between it and the connecting member 240. When the male connector 100 and the female connector 200 are in a connected state, the unlocking member 220 moves to the limit position in the direction away from the connecting member 240, and the positioning portion 221 squeezes the sealing gasket 230 to ensure the sealing of the connection between the unlocking member 220 and the connecting member 240, improve the waterproof and dustproof level, and reduce the occurrence of leakage, short circuit, etc. A limiting boss 241 is configured between the guide groove 242 and the sealing portion to prevent the connecting member 240 from separating from the male connector 100. The surface where the limiting boss 241 contacts the limiting member 102 is an inclined surface, and the diameter increases toward the unlocking member 220 , so as to facilitate the separation of the connecting member 240 from the limiting member 102 during disassembly.

[0029] When the male connector 100 of the utility model is plugged with the female connector 200, the unlocking member 220 on the female connector 200 is first rotated counterclockwise to move it axially to the inner end of the connecting member 240. At this time, the positioning portion 221 presses the sealing gasket 230, and then the connecting member 240 on the female connector 200 is sleeved on the male connector 100 and pushed toward each other until the limiting member 102 and the limiting boss 241 abut against each other. At this time, the plug hole 101 and the plug connector 211 are also plugged with each other, and the wiring harness is connected. When the male connector 100 and the female connector 200 are disassembled, the unlocking member 220 is first rotated clockwise to squeeze the limiting member 102, deform inward and close it. At this time, the female connector 200 is separated from the male connector 100, and the plug connector 211 is also separated from the plug hole 101, and the wiring harness is disconnected.

[0030] See also Figure 1-Figure 2 As shown, the automotive wiring harness includes the wiring harness plug-in assembly with a protective structure in the above scheme, one end of the male connector 100 and the female connector 200 of the above plug-in assembly are respectively connected to the wire harness 300, and the other ends are plugged into each other.

[0031] The above is a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments and examples. Various changes, equivalent substitutions, improvements, etc. made within the knowledge scope of those skilled in the art without departing from the concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A wiring harness plug assembly with a protective structure, comprising a male connector (100) and a female connector (200), wherein the male connector is provided with a plug hole, and the female connector comprises a plug connector (210), wherein the plug connector is provided with a plug connector that is electrically connected to the plug hole, wherein: The outer ring of the male head (100) is provided with a limiting member (102), which is located near the outer end and is used to limit the female head from being separated from the male head due to axial movement. The limiting member is an elastic member, which is used to deform when the male head is separated from the female head to release the restriction. The female head (200) further comprises an unlocking member (220) and a connecting member (240); the inner end of the unlocking member is rotatably sleeved on the outside of the plug-in member (210), and the outer end extends into the connecting member, so as to push the limiting member (102) to deform; The inner end of the connecting piece is threadedly connected to the outer end of the unlocking piece (220), and the outer end thereof can be selectively locked with the limiting piece (102) on the male head, and the size of the opening end matches the size of the sealing ring.

2. The plug assembly according to claim 1, characterized in that: The male head (100) is constructed in a stepped cylindrical shape, and the outer diameter of the end portion is small. A plug hole (101) is provided at the center of the end portion, and a stopper (102) is provided on the outside.

3. The plug assembly according to claim 2, characterized in that: A sealing groove (103) is provided on the outer ring of one end of the male connector (100) close to the wiring harness for installing a sealing ring (110).

4. The plug assembly according to claim 3, characterized in that: One end of the connecting piece (240) that cooperates with the sealing ring (110) is configured as a conical sealing surface (243), and its diameter gradually increases along the side facing the male head (100).

5. The plug assembly according to any one of claims 1 to 4, characterized in that: The limiting members (102) are two elastic sheets symmetrically arranged on the outside of the male head (100), the elastic sheets are tilted backwards, and the connecting member (240) is provided with a limiting boss (241) that matches the shape of the limiting member and prevents it from being loosened.

6. The plug assembly according to claim 5, characterized in that: The inner ring of the inner end of the connecting member (240) is provided with an internal thread, and the outer ring of the outer end of the unlocking member (220) is provided with an external thread matching the internal thread.

7. The plug assembly according to claim 6, characterized in that: The outer end of the unlocking member (220) is configured as a positioning portion (221) for preventing axial separation from the connecting member (240); the interior of one end of the connecting member (240) connected to the unlocking member (220) is configured as a guide groove (242) that cooperates with the positioning portion (221), and a sealing gasket (230) is provided between the positioning portion and the connecting member.

8. The plug assembly according to claim 7, characterized in that: A limiting boss (241) is constructed between the guide groove (242) and the sealing surface (243) to prevent the connection member (240) from being separated from the male head (100).

9. The plug assembly according to claim 8, characterized in that: The surface of the limiting boss (241) in contact with the limiting member (102) is an inclined surface, and its diameter increases toward the unlocking member (220).

10. Automobile wiring harness, characterized in that, A wiring harness plug-in assembly with a protective structure comprising the wiring harness plug-in assembly of any one of claims 6 to 9, wherein the male connector and the female connector of the plug-in assembly are respectively connected to the wiring harness (300).

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