A battery connecting PCBA wire harness for vehicle

Abstract

This utility model provides a vehicle battery connection PCBA wiring harness for use in PCBA wiring harnesses, including a male connector and a female connector. The male connector has elastic claws, and the female connector has a locking post. The locking post includes a tapered end and a column. The tapered end has a notch and a mounting groove, and the column has several equally spaced spiral grooves. The female connector contains ball bearings, and a tension spring is fixed between the locking post and the female connector. Two sets of elastic claws are symmetrically fixed to the bottom of the male connector. An unlocking block is slidably connected to the top of the male connector, and an elastic insulating pad is clamped between the unlocking block and the male connector. The unlocking block extends to both sides of the elastic claws and is fixed with an arc-shaped baffle. This utility model can effectively resist vehicle vibration and ensure connection stability through the locking structure of the locking post and claws. Unlocking can be achieved simply by lifting the unlocking block, making the operation simple and convenient, and facilitating later maintenance and wiring harness replacement.

Description

Technical Field

[0001] This application relates to PCBA wiring harnesses, and more particularly to a PCBA wiring harness for automotive battery connections. Background Technology

[0002] In automotive electrical systems, the connection between the battery and the PCBA relies on wiring harnesses. The stability, waterproof and dustproof performance, and vibration and loosening resistance of these harnesses directly affect the safety and reliability of the entire vehicle's electrical system. Existing automotive battery-to-PCBA wiring harnesses have the following shortcomings:

[0003] Most wiring harnesses use a single plug-in connection structure, which is prone to loosening under vehicle vibration environment, leading to increased contact resistance and even power failure. This affects the power transmission and signal interaction between the battery and PCBA. Some wiring harnesses with anti-loosening structure have complicated unlocking processes, requiring tools or multiple steps, which is not conducive to later maintenance and replacement.

[0004] Meanwhile, the vehicle environment contains impurities such as rainwater and dust. The existing wiring harness has a simple sealing structure at the connection points, which makes it easy for water or dust to enter, causing short circuits or component corrosion and shortening the service life of the wiring harness.

[0005] To address the aforementioned issues, there is an urgent need to design a vehicle battery connection PCBA harness that combines high connection stability, excellent waterproof and dustproof performance, reliable conductivity, and convenient operation to meet the usage requirements of the vehicle environment. Utility Model Content

[0006] The purpose of this application is to solve the problems of loose connections, poor waterproofing and dustproofing, unreliable conductivity, and inconvenient operation of existing wiring harnesses. Compared with the prior art, this application provides a vehicle battery connection PCBA wiring harness, including a wiring harness body and a male and female connectors disposed at the ends of the wiring harness body. The male and female connectors are used for conductive connection of the wiring harness body. An elastic claw is fixed on the opposite side of the male and female connectors, and a locking post is slidably connected to the opposite side of the female connectors.

[0007] The locking pin includes a tapered end, with symmetrical notches on both sides of the tapered end, a symmetrical hanging groove on one side of the bottom of the tapered end, and a column fixed to one side of the top of the tapered end. The column has several equally spaced spiral grooves, and the plug-in female has balls that cooperate with the spiral grooves. A tension spring is also fixed between the locking pin and the plug-in female.

[0008] Two sets of elastic claws are symmetrically fixed to the bottom of the male connector. The top of the male connector is slidably connected to an unlocking block. An elastic insulating pad is also sandwiched between the unlocking block and the male connector. The unlocking block extends to both sides of the elastic claws and is fixed with an arc-shaped baffle.

[0009] Furthermore, the top of the female connector is provided with a waterproof protrusion, and the waterproof protrusion has two sets of perpendicularly arranged insertion slots, each of which is fixed with a conductive block.

[0010] Furthermore, a conductive block one that cooperates with conductive block two is fixed to the bottom of the male connector, and an arc-shaped elastic plate is fixed to one side of conductive block one. The arc-shaped elastic plate has an elastic force that drives conductive block one closer to conductive block two.

[0011] Furthermore, the bottom of the male connector is provided with a waterproof groove that mates with the waterproof protrusion, and a sealing gasket and a sealing ring are fixed in the waterproof groove.

[0012] Furthermore, the tension spring has an elastic force that drives the locking pin away from the female connector. When the tension spring moves up to its maximum stroke, the end of the hook groove engages with the end of the elastic claw, and the elastic insulating pad has an elastic force that drives the unlocking block closer to the male connector.

[0013] Compared to existing technologies, the advantages of this application are:

[0014] This invention achieves primary locking through a "ball bearing-spiral groove" and secondary locking through a "elastic claw-hooking groove." This double-locking structure effectively resists vehicle vibration, prevents loosening of the wiring harness connection, and ensures connection stability. The integrated design of the unlocking block and arc-shaped baffle allows for easy unlocking by simply lifting the unlocking block, eliminating the need for tools. This simple and convenient operation facilitates future maintenance and wiring harness replacement. Furthermore, the combination of waterproof protrusions and waterproof grooves, along with a double-sealing design of sealing gaskets and sealing rings, effectively prevents water and dust intrusion, extending the service life of the wiring harness in the complex environment of a vehicle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front structure of this application;

[0016] Figure 2 This is a schematic diagram of the bottom structure of this application;

[0017] Figure 3 This is an exploded structural diagram of the female connector proposed in this application;

[0018] Figure 4 This is an exploded structural diagram of the male connector proposed in this application;

[0019] Figure 5 This is a partial cross-sectional structural diagram of this application.

[0020] Explanation of the labels in the diagram:

[0021] 1. Male connector; 11. Waterproof groove; 111. Sealing gasket; 112. Sealing ring; 12. Conductive block one; 121. Arc-shaped elastic plate; 2. Female connector; 21. Waterproof protrusion; 22. Connecting groove; 221. Conductive block two; 23. Ball bearing; 3. Locking post; 31. Conical end; 32. Notch groove; 33. Hanging groove; 34. Column; 341. Spiral groove; 4. Elastic claw; 5. Wire harness body; 6. Tension spring; 7. Unlocking block; 71. Arc-shaped baffle; 8. Elastic insulating pad. Detailed Implementation

[0022] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0023] Example:

[0024] This utility model provides a vehicle battery connection PCBA wiring harness. Please refer to [link / reference]. Figure 1 - Figure 5 It includes a wire harness body 5 and a male connector 1 and a female connector 2 disposed at the end of the wire harness body 5. The male connector 1 and the female connector 2 are used for conductive connection of the wire harness body 5. Through the cooperation of the two, the power and signal transmission between the battery and the PCBA is realized.

[0025] The male connector 1 and the female connector 2 are fixed with elastic claws 4 on the opposite side. Two sets of elastic claws 4 are symmetrically fixed at the bottom of the male connector 1 to cooperate with the locking pin 3 to achieve mechanical anti-loosening.

[0026] A locking pin 3 is slidably connected to the side of the female connector 2 opposite to the male connector 1. The locking pin 3 includes a tapered end 31, with symmetrical notches 32 on both sides of the tapered end 31, which provide a sliding channel for the engagement of the elastic claw 4; a symmetrical hanging groove 33 is provided on one side of the bottom of the tapered end 31 for engaging with the end of the elastic claw 4 to form a stable lock; a column 34 is also fixed on one side of the top of the tapered end 31, and the column 34 is provided with several equally spaced spiral grooves 341.

[0027] The plug-in female head 2 is provided with a ball bearing 23 that mates with the spiral groove 341. The ball bearing 23 is embedded in the spiral groove 341. When the locking pin 3 moves axially, it can drive the pin to rotate, realizing the angle conversion between the notch groove 32 and the hook groove 33. A tension spring 6 is also fixed between the locking pin 3 and the plug-in female head 2. The tension spring 6 has the elastic force to drive the locking pin 3 away from the plug-in female head 2. When the tension spring 6 moves up to the maximum stroke, the hook groove 33 and the end of the elastic claw 4 are engaged to ensure precise locking.

[0028] The top of the male connector 1 is slidably connected to an unlocking block 7. An elastic insulating pad 8 is also sandwiched between the unlocking block 7 and the male connector 1. The elastic insulating pad 8 has an elastic force that drives the unlocking block 7 to approach the male connector 1, which can realize the automatic reset of the unlocking block 7. The unlocking block 7 extends to both sides of the elastic claw 4 and is fixed with an arc-shaped baffle 71. When the unlocking block 7 is lifted, the arc-shaped baffle 71 can move away from the elastic claw 4, releasing the restriction of the elastic deformation of the elastic claw 4, so that the elastic claw 4 can disengage from the hanging groove 33 by its own elastic deformation, thereby realizing the unlocking action.

[0029] The top of the female connector 2 is provided with a waterproof protrusion 21. The waterproof protrusion 21 has two sets of perpendicularly arranged insertion grooves 22. Each insertion groove 22 is fixed with a conductive block 221. The insertion grooves 22 are used to guide the precise alignment of the male connector 1 and the female connector 2. At the same time, the waterproof protrusion 21 can enhance the sealing of the connection part.

[0030] The bottom of the male connector 1 is provided with a waterproof groove 11 that mates with the waterproof protrusion 21. A sealing gasket 111 and a sealing ring 112 are fixed inside the waterproof groove 11. When the male connector 1 and the female connector 2 are mated, the waterproof protrusion 21 is embedded in the waterproof groove 11, and the sealing gasket 111 and the sealing ring 112 can effectively prevent water and dust from entering the connection part, achieving a double seal and improving the waterproof and dustproof level.

[0031] The bottom of the male connector 1 is fixed with a conductive block 12 that mates with the conductive block 221. An arc-shaped elastic plate 121 is fixed on one side of the conductive block 12. The arc-shaped elastic plate 121 has an elastic force that drives the conductive block 12 to approach the conductive block 221. This elastic structure can compensate for the displacement caused by assembly tolerance and vehicle vibration, ensuring that the conductive block 12 and the conductive block 221 are always in close contact, reducing contact resistance, ensuring conductivity reliability, and avoiding local overheating.

[0032] During use, the waterproof groove 11 of the male connector 1 is aligned with the waterproof protrusion 21 of the female connector 2, and the male connector 1 and female connector 2 are pushed closer together. During this process, conductive block 12 is gradually inserted into the connector groove 22 and comes into contact with conductive block 221. The arc-shaped elastic plate 121 is compressed, generating elastic force to make conductive block 12 and conductive block 221 fit tightly together. At the same time, the waterproof protrusion 21 is gradually embedded into the waterproof groove 11, and the sealing gasket 111 and sealing ring 112 are squeezed to form a seal.

[0033] Simultaneously, during the process of pushing the male connector 1, the elastic claw 4, which is restricted by the arc-shaped baffle 71, abuts against the tapered end 31 at the top of the locking pin 3, thereby pressing and causing the locking pin 3 as a whole to overcome the elastic force of the tension spring 6 and move into the female connector 2. Since the ball 23 is embedded in the spiral groove 341, the locking pin 3 will rotate while moving axially. When the tension spring 6 moves up to the maximum stroke, the locking pin 3 rotates to the set angle, and the notch groove 32 aligns with the end of the elastic claw 4. The elastic potential energy stored in the tension spring 6 is released. At this time, the locking pin 3 moves up as a whole, on the one hand, so that the elastic claw 4 is engaged in the notch groove 32, and on the other hand, under the rotation of the locking pin 3, the elastic claw 4 moves down from the notch groove 32 and is embedded in the hanging groove 33, completing the locking and achieving a stable connection.

[0034] When it is necessary to separate the male connector 1 and the female connector 2, press and lift the unlocking block 7. The unlocking block 7 moves away from the male connector 1 and compresses the elastic insulating pad 8 upward. The arc-shaped baffles 71 on both sides move away from the elastic claws 4, so that the elastic claws 4 are not restricted by the arc-shaped baffles 71 and undergo elastic deformation. Under the pulling force of the unlocking block 7, the elastic claws 4 deform and disengage from the hanging groove 33, thus achieving the separation of the two. After releasing the unlocking block 7, the elastic insulating pad 8 pushes the unlocking block 7 to reset, waiting for the next connection.

[0035] This utility model achieves primary locking through "ball bearing 23 - spiral groove 341" and secondary locking through "elastic claw 4 - hooking groove 33". The double locking structure can effectively resist vehicle vibration, prevent the wiring harness connection from loosening, and ensure connection stability. The unlocking block 7 and the arc-shaped baffle 71 are integrated, and unlocking can be achieved simply by lifting the unlocking block 7 without the need for tools. The operation is simple and convenient, and it is easy to maintain and replace the wiring harness later.

[0036] The structure of waterproof protrusion 21 and waterproof groove 11 is combined with a double sealing design of sealing gasket 111 and sealing ring 112, which can effectively prevent water and dust from entering and improve the service life of the wiring harness in the complex environment of the vehicle.

[0037] The above description is merely the best implementation method adopted in light of current practical needs, but the scope of protection of this application is not limited thereto.

Claims

1. A battery connecting PCBA wiring harness for vehicles, comprising a wiring harness body (5) and a plug male head (1) and a plug female head (2) arranged at the end of the wiring harness body (5), characterized in that, The male connector (1) and the female connector (2) are used for conductive connection of the wire harness body (5). An elastic claw (4) is fixed on the opposite side of the male connector (1) and the female connector (2). A locking post (3) is slidably connected to the opposite side of the female connector (2) and the male connector (1). The locking pin (3) includes a tapered end (31), with symmetrical notches (32) on both sides of the tapered end (31), and symmetrical hanging grooves (33) on one side of the bottom of the tapered end (31). A column (34) is also fixed on one side of the top of the tapered end (31), and a plurality of equally spaced spiral grooves (341) are provided on the column (34). A ball (23) that cooperates with the spiral grooves (341) is provided in the plug-in female head (2). A tension spring (6) is also fixed between the locking pin (3) and the plug-in female head (2). Two sets of elastic claws (4) are symmetrically fixed to the bottom of the male connector (1). The top of the male connector (1) is slidably connected to an unlocking block (7). An elastic insulating pad (8) is also sandwiched between the unlocking block (7) and the male connector (1). The unlocking block (7) extends to both sides of the elastic claws (4) and is fixed with an arc-shaped baffle (71).

2. The battery connection PCBA wiring harness of claim 1, wherein, The top of the female connector (2) is provided with a waterproof protrusion (21), and the waterproof protrusion (21) is provided with two sets of perpendicularly arranged plug grooves (22), and each plug groove (22) is fixed with a conductive block (221).

3. The battery connection PCBA wiring harness of claim 2, wherein, The bottom of the male connector (1) is fixed with a conductive block (12) that cooperates with the conductive block (221). An arc-shaped elastic plate (121) is fixed on one side of the conductive block (12). The arc-shaped elastic plate (121) has an elastic force that drives the conductive block (12) to approach the conductive block (221).

4. The battery connection PCBA wiring harness of claim 2, wherein, The bottom of the male connector (1) is provided with a waterproof groove (11) that cooperates with the waterproof protrusion (21), and a sealing gasket (111) and a sealing ring (112) are fixed in the waterproof groove (11).

5. A vehicle battery connection PCBA harness according to claim 1, characterized in that, The tension spring (6) has an elastic force that drives the locking pin (3) away from the plug female (2). When the tension spring (6) moves up to its maximum stroke, the hook groove (33) engages with the end of the elastic claw (4). The elastic insulating pad (8) has an elastic force that drives the unlocking block (7) closer to the plug male (1).

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