Automobile wire harness connector

Abstract

The utility model relates to the technical field of automobile wire harness connection, and discloses an automobile wire harness connector which comprises a connecting plug and a connecting socket, and a limiting sealing structure is arranged between the connecting plug and the connecting socket. The limiting sealing structure comprises an annular air bag fixedly arranged on the outer ring wall of the connecting plug, a limiting block arranged on the outer ring wall of the connecting plug in a sealed and telescopic mode, and a sealing driving piece arranged at the end, close to the connecting plug seat, of the connecting plug in a sealed and telescopic mode in the axial direction of the connecting plug. According to the automobile wire harness connector, the sealing driving piece can be driven to seal and retract only through the action that the connecting plug is inserted into the connecting socket, so that the limiting block is driven to seal and stretch out to be connected with the connecting socket in an inserted mode to achieve limiting, the annular air bag expands to abut against the inner ring wall of the connecting socket in a sealed mode to achieve sealing, operation steps are simplified, no extra tool is needed for assistance, and the cost is reduced. The operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness connection technology, and in particular to an automotive wiring harness connector. Background Technology

[0002] Automotive wiring harnesses are used to transmit electrical signals between various electrical components in a vehicle. Currently, automotive wiring harnesses are typically connected using connectors.

[0003] Chinese Patent Application No. 202322426113.5 discloses a waterproof automotive wiring harness connector, including a first automotive wiring harness and a second automotive wiring harness. The first automotive wiring harness has a plug groove fixedly connected to its end, and the second automotive wiring harness has a plug connector fixedly connected to its end. The first automotive wiring harness is provided with a waterproof component, which includes two waterproof protective shells on both sides. The two waterproof protective shells are respectively fitted onto the first automotive wiring harness and the second automotive wiring harness. Multiple mounting plates are fixedly connected to the surface of the waterproof protective shells. Through holes are symmetrically opened on the mounting plates. A sealing ring is fixedly connected to the end of the waterproof protective shell, and a sealing gasket is fixedly connected to the inner side of the waterproof protective shell.

[0004] In use, the connector must first be inserted into the socket, then the two waterproof protective shells on both sides must be moved to fit together. Finally, since the mounting plates have through holes, bolts and nuts are needed to secure the multiple mounting plates on the two waterproof protective shells. This method involves many steps and requires additional tools such as wrenches to tighten the bolts, making it inconvenient to operate. Utility Model Content

[0005] This invention addresses the shortcomings of existing connectors, which require multiple steps to achieve a sealed connection and necessitate the use of tools such as wrenches to tighten bolts. It provides an automotive wiring harness connector that requires no tools and offers convenient sealing and connection.

[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0007] An automotive wiring harness connector includes a plug and a socket for inserting the plug. A limiting sealing structure is provided between the plug and the socket to prevent them from disengaging in the opposite direction when they are plugged in and to achieve a sealed connection between them. The limiting sealing structure includes an annular airbag fixedly disposed on the outer annular wall of the plug, which can seal against the inner annular wall of the socket when it expands and disengages from the inner annular wall of the socket when it contracts, and a limiting block partially extended and retracted on the outer annular wall of the plug, which can insert into the socket when it extends and disengages from the socket when it retracts. A sealing drive member is provided on the end of the plug near the socket along the axial direction of the plug, which can seal and retract when the plug is inserted into the socket to simultaneously drive the limiting block to extend and the annular airbag to expand.

[0008] Using the above solution, before the connector is inserted into the connector socket, both the annular airbag and the limiting block are housed within the connector, and the annular airbag is in a contracted state, which does not affect the insertion of the connector into the connector socket. The sealing drive component retracts due to the single action of inserting the connector into the socket, thereby causing the limiting block to extend and seal against the connector socket, preventing the connector from disengaging. The annular airbag then expands and seals against the inner annular wall of the connector socket, simplifying the operation and requiring no additional tools, making it convenient to use.

[0009] Preferably, the end of the connector near the connector seat is provided with a telescopic groove for the sealing drive to extend and retract, and the outer ring wall of the connector is provided with a sliding groove for the sealing and retraction of the limiting block. The bottom of the telescopic groove is provided with a connecting channel that is in sealed communication with the bottom of the sliding groove and the inner cavity of the annular airbag.

[0010] Using the above scheme, the sealing drive retracts, simultaneously squeezing the air in the telescopic groove into the annular airbag and the sliding groove. The increased air and pressure in the sliding groove drive the sealing portion of the limiting block to extend. The increased air and pressure in the annular airbag drive it to expand until it elastically seals against the inner annular wall of the connector.

[0011] Preferably, the connector is provided with a switching structure that can seal the connection channel or allow the connection channel to communicate with the outside to release the seal, and a tension spring is provided between the limiting block and the sliding groove to drive the limiting block to retract and release the limit when the connection channel is connected to the outside.

[0012] Using the above solution, when the wiring harness is damaged and needs replacement, the switching structure is switched to connect the connection channel to the outside. The air in the annular airbag is expelled, no longer elastically sealing against the inner ring wall of the connector, and the sliding groove returns to normal pressure. At this point, the tension spring drives the limit block to retract until the connector is disengaged, releasing the limit. The connector can then be pulled out of the connector. Conversely, before installation, the switching structure is switched to the sealed connection channel, and the connector and connector are then plugged in.

[0013] Preferably, the switching structure includes a threaded groove recessed on the outer ring wall of the plug-in outside the plug-in socket, which is in sealing communication with the connection channel, and a sealing member that can seal the threaded groove or open the threaded groove.

[0014] Using the above method, rotating the sealing component disengages it from the threaded groove, allowing the connecting channel to communicate with the outside through the threaded groove. Conversely, rotating the sealing component in the opposite direction causes it to engage with the threaded groove, achieving a seal on the threaded groove, thus sealing the connecting channel.

[0015] Preferably, a spring is provided between the sealing drive and the telescopic groove to drive the sealing drive to partially extend out of the telescopic groove under normal conditions.

[0016] The above solution can prevent the sealing drive from accidentally retracting into the telescopic groove during transportation, which would affect subsequent installation. In addition, when the connector is pulled out of the connector socket, the spring can also drive the sealing drive to partially extend and reset, making it easy to reuse.

[0017] Preferably, the sealing drive is arranged in a ring concentric with the plug, and several springs are arranged at intervals around the plug axially.

[0018] Preferably, at least one set of limiting block, sliding groove, tension spring and connecting channel is provided axially spaced around the plug joint.

[0019] Using the above scheme, setting one set is sufficient to achieve the limit, while setting multiple sets increases the limit strength.

[0020] This utility model, by adopting the above technical solution, has significant technical effects: by simply inserting the connector into the connector socket, the sealing drive component can be driven to retract, simultaneously squeezing the air in the telescopic groove into the annular airbag and the sliding groove. The increased air and pressure in the sliding groove drive the sealing portion of the limiting block to extend out and disconnect from the connector socket, thus preventing the connector and connector socket from interlocking. The increased air and pressure in the annular airbag cause it to expand until it elastically seals against the inner annular wall of the connector socket, achieving a seal. This simplifies the operation steps and requires no additional tools, making it convenient to operate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a connector in an automotive wiring harness connector according to Embodiment 1;

[0022] Figure 2 This is a schematic diagram of a connector in an automotive wiring harness connector according to Embodiment 1;

[0023] Figure 3 This is a top view of an automotive wiring harness connector in Embodiment 1 when the connector and socket are not plugged in;

[0024] Figure 4 yes Figure 3 Sectional view at point AA;

[0025] Figure 5 yes Figure 4 Enlarged view of point B in the image;

[0026] Figure 6 This is a half-sectional view of the connector and socket in an automotive wiring harness connector in Embodiment 1 when they are plugged in.

[0027] Figure 7 yes Figure 6 Enlarged view of point C in the image;

[0028] Figure 8This is a half-sectional view of the connector and socket of an automotive wiring harness connector in Embodiment 2 when they are plugged in.

[0029] Figure 9 yes Figure 8 Enlarged view of point D in the image.

[0030] The parts referred to by the numbers in the above attached figures are as follows: 1. First wiring harness; 2. Second wiring harness; 3. Connector; 4. Connector socket; 401. Connector groove; 5. Annular groove; 6. Annular airbag; 7. Sliding groove; 8. Limiting block; 9. Tension spring; 10. Limiting groove; 11. Telescopic groove; 12. Sealing drive component; 13. Spring; 14. Connecting channel; 15. Threaded groove; 16. Sealing component. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0032] Example 1

[0033] An automotive wiring harness connector, reference Figures 1 to 7 The device includes a connector 3 fixed to the end of the first wire harness 1 and a connector base 4 fixed to the end of the second wire harness 2. The connector base 4 has a recessed groove 401 for guiding the connector 3 into place. The electrical connection between the connector 3 and the connector base 4 after insertion is existing technology and will not be described in detail here.

[0034] The outer ring wall of the connector 3 is recessed with an annular groove 5, and the annular groove 5 is concentric with the connector 3. An annular airbag 6 is fixedly installed inside the annular groove 5, and the annular airbag 6 is housed in the annular groove 5 when it is contracted.

[0035] The outer ring wall of the connector 3 is recessed with a sliding groove 7, and the inner ring wall of the insertion groove 401 is recessed with a limiting groove 10. When the side of the connector 3 near the insertion base 4 is inserted into the insertion groove 401 and abuts against the bottom of the insertion groove 401, the sliding groove 7 and the limiting groove 10 are aligned. A limiting block 8 is provided in the sliding groove 7 for sealing and telescopic movement. The limiting block 8 can be completely housed in the sliding groove 7 or partially protrude from the sliding groove 7 and be inserted into the limiting groove 10.

[0036] A telescopic groove 11 is recessed at one end of the connector 3 near the connector base 4. A sealing drive 12 is provided within the telescopic groove 11 along the axial direction of the connector 3, and the sealing drive 12 is arranged in a ring concentric with the connector 3. Therefore, the telescopic groove 11 is also ring-shaped. A connecting channel 14 is recessed at the bottom of the telescopic groove 11, which communicates with both the bottom of the sliding groove 7 and the bottom of the annular groove 5. An opening is provided on the side of the annular airbag 6 that is fitted and fixed to the bottom of the annular groove 5, allowing the inner cavity of the annular airbag 6 to be sealed and connected to the connecting channel 14. In this embodiment, the sealing drive 12 is an annular piston, and two sets of limiting blocks 8, sliding grooves 7, and connecting channels 14 are evenly spaced around the axial direction of the connector 3.

[0037] During connection, the connector 3 is inserted into the connector slot 401 until the side of the connector 3 near the connector seat 4 abuts against the bottom of the connector slot 401, so that the sliding groove 7 and the limiting groove 10 are aligned. During the above-mentioned insertion process, the sealing drive 12 is compressed and retracted, which simultaneously compresses the air in the telescopic groove 11 into the annular airbag 6 and the sliding groove 7. The increase in air and pressure in the sliding groove 7 drives the sealing part of the limiting block 8 to extend and insert into the limiting groove 10, preventing the connector 3 and the connector seat 4 from disengaging in the opposite direction of insertion. The increase in air and pressure in the annular airbag 6 drives it to expand until it elastically seals against the inner annular wall of the connector slot 401 to achieve a seal.

[0038] Example 2

[0039] Compared to the difficult disassembly of connector 3 and socket 4 after insertion and positioning in Embodiment 1, in this embodiment, referring to... Figure 8 and Figure 9 When the connector 3 and the socket 4 are connected, a portion of the connector 3 remains exposed outside the socket 4. A threaded groove 15 is recessed on the outer annular wall of the connector 3 exposed outside the socket 4, and the bottom of the threaded groove 15 is in sealed communication with the connecting channel 14. A sealing element 16 is also included, which can either be threadedly engaged with the threaded groove 15 or disengaged from it. When there are multiple connecting channels 14, the threaded groove 15 only needs to communicate with at least one connecting channel 14, and all connecting channels 14 can be connected through the inner cavity of the annular airbag 6.

[0040] A tension spring 9 is provided between the limiting block 8 and the sliding groove 7 along the extension and retraction direction of the limiting block 8. The two ends of the tension spring 9 are fixedly connected to the bottom of the sliding groove 7 and the side of the limiting block 8 near the bottom of the sliding groove 7, respectively, to prevent the limiting block 8 from accidentally coming out. Under normal conditions, the tension spring 9 ensures that the limiting block 8 is completely housed in the sliding groove 7.

[0041] A spring 13 is provided between the sealing drive member 12 and the telescopic groove 11 along the telescopic direction of the sealing drive member 12. The two ends of the spring 13 are fixedly connected to the bottom of the telescopic groove 11 and the side of the sealing drive member 12 near the bottom of the telescopic groove 11, respectively, to prevent the sealing drive member 12 from accidentally dislodging. Under normal conditions, the spring 13 drives the sealing drive member 12 to partially extend out of the telescopic groove 11. In this embodiment, four springs 13 are evenly spaced around the connector 3 along its axial direction.

[0042] During installation, after the sealing component 16 seals and plugs the threaded groove 15, the installation steps of Example 1 can be repeated.

[0043] During disassembly, rotate the sealing part 16 to disengage it from the threaded groove 15, the air in the annular airbag 6 is discharged, and it no longer elastically seals against the inner annular wall of the plug seat 4. At the same time, the sliding groove 7 returns to normal pressure. At this time, the tension spring 9 drives the limiting block 8 to retract until the plug seat 4 is disengaged and the limiting is released. The plug 3 can then be pulled out of the plug seat 4.

[0044] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An automobile wire harness connector comprising a plug (3) and a socket (4) into which the plug (3) is inserted, a position-limiting and sealing structure being provided between the plug (3) and the socket (4) to limit reverse disengagement of the two when they are plugged and to achieve sealed connection of the two, characterized in that: The position-limiting sealing structure comprises a ring-shaped air bag (6) fixedly arranged on the outer ring wall of the plug-in connector (3) and capable of sealingly abutting against the inner ring wall of the plug-in seat (4) when inflated and disengaging from the inner ring wall of the plug-in seat (4) when deflated, and a position-limiting block (8) sealingly and telescopically arranged on the outer ring wall of the plug-in connector (3) and capable of being inserted into the plug-in seat (4) when extended and disengaging from the plug-in seat (4) when retracted, and the plug-in connector (3) is provided with a sealing driving member (12) sealingly and telescopically arranged on the end close to the plug-in seat (4) and capable of being retracted to simultaneously drive the position-limiting block (8) to extend and the ring-shaped air bag (6) to inflate when the plug-in connector (3) is inserted into the plug-in seat (4).

2. The automotive wire harness connector according to claim 1, characterized by: The end of the plug-in connector (3) close to the plug-in seat (4) is recessed with a telescopic groove (11) for the sealing driving member (12) to sealingly and telescopically extend and retract, and the outer ring wall of the plug-in connector (3) is recessed with a sliding groove (7) for the position-limiting block (8) to sealingly and telescopically extend and retract, and the bottom of the telescopic groove (11) is provided with a connecting channel (14) sealingly communicated with the bottom of the sliding groove (7) and the inner cavity of the ring-shaped air bag (6).

3. The automotive wire harness connector of claim 2, wherein: The plug-in connector (3) is provided with a switching structure capable of sealingly connecting the connecting channel (14) or unsealingly connecting the connecting channel (14) with the outside, and the position-limiting block (8) and the sliding groove (7) are provided with a tension spring (9) capable of driving the position-limiting block (8) to retract and disengage from the position limitation when the connecting channel (14) is connected with the outside.

4. The automotive wire harness connector of claim 3, wherein: The switching structure comprises a threaded groove (15) recessed on the outer ring wall of the plug-in connector (3) outside the plug-in seat (4) and sealingly communicated with the connecting channel (14), and a blocking member (16) capable of sealingly threadedly cooperating with the threaded groove (15) or opening the threaded groove (15).

5. The automotive wire harness connector of claim 2, wherein: The sealing driving member (12) and the telescopic groove (11) are provided with a spring (13) capable of driving the sealing driving member (12) to partially extend out of the telescopic groove (11) in a normal state.

6. The automotive wire harness connector of claim 5, wherein: The sealing driving member (12) is arranged in a ring shape concentric with the plug-in connector (3), and the spring (13) is axially and spacedly arranged around the plug-in connector (3).

7. The automotive wire harness connector of claim 3, wherein: The position-limiting block (8), the sliding groove (7), the tension spring (9) and the connecting channel (14) are axially and spacedly arranged around the plug-in connector (3) in at least one group.

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