Transition device for vehicle lamp wire harness connection

Abstract

The invention relates to a transition device for automobile lamp wire harness connection, and relates to the technical field of automobile wire harness connection.The transition device comprises a transition base, a butt joint assembly arranged at one end of the transition base and a wire harness protection assembly arranged at the other end of the transition base, a wire penetrating hole is formed in the transition base, and an automobile lamp wire harness penetrates through the wire penetrating hole; the butt joint assembly is used for being detachably and fixedly connected with a vehicle lamp wiring end, and the wire harness protection assembly is used for protecting the connecting position of the wire harness and the transition base. Through the elastic clamping structure of the butt joint assembly, stable and detachable connection between the transition device and the automobile lamp wiring end is achieved, the limiting effect of the positioning clamping ring is matched, connection looseness caused by automobile vibration is effectively resisted, and the circuit conduction stability is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile wire harness connection, in particular to a transition device for automobile lamp wire harness connection. BACKGROUND

[0002] The automobile lamp wire harness is a cable and connector assembly connecting the automobile lamp and the power supply and control module in the automobile light system, and is usually composed of a wire, a connector, a protective sleeve, a resistor, a fuse and other auxiliary components, and is called the "nerve center" of the automobile lamp system.

[0003] However, in the existing wire harness connection structure, after the connection terminal is butted with the wiring terminal inside the automobile lamp, only the basic positioning is realized through the fixing seat, and there is no effective anti-loosening structure, so that the vibration during automobile driving easily causes the connection terminal and the wiring terminal to be loose, thereby affecting the circuit conduction stability; meanwhile, the connection part of the wire harness and the connection terminal lacks a protection structure, and the wire is easily exposed due to abrasion and bending in long-term use, and there is a short circuit risk. SUMMARY

[0004] In order to improve the stability and protection of the connection of the automobile lamp wire harness and the wiring terminal of the automobile lamp and avoid the problems of loose connection and wire abrasion and exposure, the application provides a transition device for automobile lamp wire harness connection.

[0005] The application provides a transition device for automobile lamp wire harness connection, which adopts the following technical scheme: The transition device for automobile lamp wire harness connection comprises a transition seat, a butt joint assembly arranged at one end of the transition seat and a wire harness protection assembly arranged at the other end of the transition seat, the transition seat is internally provided with a wire passing hole, the automobile lamp wire harness passes through the wire passing hole, the butt joint assembly is used for detachably fixedly connecting with the wiring terminal of the automobile lamp, and the wire harness protection assembly is used for protecting the connection part of the wire harness and the transition seat.

[0006] By adopting the above technical scheme, the transition seat serves as a core bearing structure and provides an installation base for the butt joint assembly and the wire harness protection assembly, and the wire passing hole realizes the through arrangement of the automobile lamp wire harness; the butt joint assembly realizes the detachable fixed connection of the transition device and the wiring terminal of the automobile lamp, and compared with the traditional positioning mode relying on the fixing seat alone, the connection stability is higher and the loosening risk caused by automobile driving vibration can be effectively resisted; the wire harness protection assembly is used for targeted protection of the connection part of the wire harness and the transition seat, the influence of abrasion and bending on the wire harness is reduced, the wire exposure is avoided to cause short circuit, and therefore the stability and protection of the automobile lamp wire harness connection are comprehensively improved.

[0007] Optionally, the butt joint assembly comprises: a butt joint seat arranged at the end of the transition seat, the butt joint seat is internally provided with a butt joint groove, and the butt joint groove is in communication with the wire passing hole in the transition seat. An elastic snap-fit ​​component is disposed on the outer wall of the mating seat, and is used to engage with the slot on the inner wall of the vehicle lamp wiring terminal.

[0008] By adopting the above technical solution, the docking seat and the vehicle lamp terminal form a plug-in fit, and the docking groove is connected to the wire hole to ensure that the wire harness can pass through smoothly and form a conductive connection with the vehicle lamp terminal. The elastic snap-fit ​​component forms a snap-fit ​​fit with the snap-fit ​​groove on the inner wall of the vehicle lamp terminal. Utilizing the self-locking characteristic of the elastic snap-fit, a stable connection between the docking seat and the vehicle lamp terminal is achieved. During installation, simply insert the docking seat into the vehicle lamp terminal, and the elastic snap-fit ​​component will automatically snap into the snap-fit ​​groove to complete the fixation. During disassembly, the snap-fit ​​component can be released by pressing it. The operation is convenient and the connection is highly reliable, effectively preventing loosening caused by vibration.

[0009] Optionally, the resilient snap-fit ​​component includes: An elastic sheet, one end of which is disposed on the outer wall of the mating seat, and the other end of which is inclined toward the outer wall of the mating seat; A locking block is disposed on the free end of the elastic sheet, and the locking block is used to engage with the slot on the inner wall of the vehicle lamp wiring terminal.

[0010] By adopting the above technical solution, the elastic sheet has good elastic deformation capability. The inclined structure allows the locking block to drive the elastic sheet to retract towards the side wall of the docking seat under the squeezing action of the inner wall of the terminal when the docking seat is inserted into the vehicle light terminal, facilitating smooth insertion. When the locking block moves to the slot position, the elastic sheet restores its deformation, pushing the locking block into the slot to form a stable locking structure. The mating surface between the locking block and the slot can be set as an arc surface, which not only ensures the firmness of the locking but also allows the locking block to be smoothly disengaged from the slot by pressing the elastic sheet with external force during disassembly. The structural design is reasonable, taking into account both connection stability and ease of operation.

[0011] Optionally, the wire harness protection assembly includes: The protective sleeve is disposed on the end of the transition seat away from the docking seat; A plurality of anti-bending ribs are provided, and the plurality of anti-bending ribs are evenly distributed on the inner sidewall of the protective sleeve. A tightening component is provided on the protective sleeve, and the tightening component is used to tighten and fix the wire harness inserted into the protective sleeve.

[0012] By adopting the above technical solution, the protective sleeve is directly fitted onto the connection between the wire harness and the transition seat, forming an outer layer of protection and reducing damage to the wire harness from external friction; several evenly distributed anti-bending ribs can enhance the structural strength of the protective sleeve and limit excessive bending of the protective sleeve, thereby preventing the wire harness from breaking or the insulation layer from being damaged due to repeated bending at the connection; the tightening component tightens and fixes the wire harness inside the protective sleeve, preventing the wire harness from moving inside the protective sleeve, further reducing wear, and improving the overall stability of the connection between the wire harness and the transition seat.

[0013] Optionally, the tightening member includes: Self-locking cable ties, wherein the self-locking cable ties are tied to one end of the wire harness that passes through the protective sleeve; A tightening plate is provided at the end of the protective sleeve. The tightening plate is integrally glued together with the protective sleeve, self-locking cable ties and wire harness when the wire harness is inserted into the protective sleeve.

[0014] By adopting the above technical solution, the self-locking cable ties first bind and fix the wire harness inside the protective sleeve, restricting the radial movement of the wire harness; the tightening plate formed by the integrated potting binder firmly combines the protective sleeve, the self-locking cable ties, and the wire harness into a whole, which not only further improves the tightening and fixing effect, but also seals the end of the protective sleeve to prevent moisture, dust, and other impurities from entering the protective sleeve and corroding the wire harness. At the same time, the potting material has good cushioning and protective properties, which can further reduce the impact of vibration on the wire harness connection parts and extend the service life.

[0015] Optionally, the transition seat is provided with a conductive terminal inside. One end of the conductive terminal extends into the mating groove and is used for conductive connection with the vehicle lamp wiring terminal. The other end of the conductive terminal extends into the protective sleeve and is used for conductive connection with the wiring harness. The inner wall of the transition seat is provided with an insulating protective layer.

[0016] By adopting the above technical solution, the conductive terminal serves as an intermediate conductive medium to achieve a stable conductive connection between the vehicle lamp wiring terminal and the wiring harness. Compared with the wiring harness directly connecting to the vehicle lamp wiring terminal, the conductive terminal has a larger contact area and stronger conductive stability. The insulating protective layer on the inner wall of the transition seat can prevent leakage between the conductive terminal and the transition seat, while preventing external impurities from contacting the conductive terminal and affecting its conductivity, thus improving the electrical safety of the device.

[0017] Optionally, the inner wall of the mating groove is provided with a conductive contact piece, which is electrically connected to the conductive terminal. The conductive contact piece is arc-shaped and elastic.

[0018] By adopting the above technical solution, the conductive contact with the arc-shaped elastic structure can form a tight fit with the conductive part of the vehicle lamp terminal when the docking seat is connected to the vehicle lamp terminal. The pressure generated by the elastic deformation ensures good contact, reduces contact resistance, and improves conductivity stability. At the same time, the elastic structure can adapt to a certain range of dimensional deviations, enhance the compatibility of docking, and the elasticity of the conductive contact can play a buffering role during vehicle vibration, avoiding poor contact caused by vibration.

[0019] Optionally, a rubber sealing ring is fitted on the outer wall of the docking seat.

[0020] By adopting the above technical solution, the rubber sealing ring has good elasticity and sealing performance. After the docking seat is connected to the vehicle lamp terminal, the rubber sealing ring is squeezed between the outer wall of the docking seat and the inner wall of the vehicle lamp terminal to form a sealing structure, preventing moisture, dust and other impurities from entering the docking part, avoiding oxidation and corrosion of conductive terminals, conductive contacts and other components, ensuring long-term stability of conductivity. At the same time, the elasticity of the rubber sealing ring can play a certain role in buffering and vibration reduction, further improving the stability of the connection.

[0021] Optionally, a plurality of anti-slip strips are evenly distributed on the outer wall of the rubber sealing ring.

[0022] By adopting the above technical solution, the anti-slip rubber strip can increase the friction between the rubber sealing ring and the inner wall of the vehicle light terminal, further improving the firmness of the connection between the docking seat and the vehicle light terminal, preventing relative slippage. At the same time, the anti-slip rubber strip can also enhance the sealing effect, reduce the infiltration path of moisture and dust, and further improve the sealing and protection performance.

[0023] Optionally, a positioning ring is fitted on the outer wall of the transition seat, and the positioning ring fits against the outer peripheral wall of the vehicle lamp wiring terminal.

[0024] By adopting the above technical solution, the positioning ring plays a positioning and limiting role in the docking of the transition seat and the vehicle lamp terminal, ensuring that the docking seat can be accurately inserted into the preset position of the vehicle lamp terminal, thus improving the installation accuracy. At the same time, the positioning ring fits against the outer peripheral wall of the vehicle lamp terminal, which can limit the radial wobble of the transition seat. Combined with the axial fixation of the elastic snap-fit, it forms an all-round positioning and fixing structure, further improving the stability of the connection and resisting various vibrations during vehicle operation.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the elastic snap-fit ​​structure of the docking components, a stable and detachable connection between the transition device and the vehicle light wiring terminal is achieved. Combined with the limiting effect of the positioning ring, it effectively resists the loosening of the connection caused by vehicle vibration and improves the stability of circuit conduction. 2. Through the synergistic effect of protective sleeves, anti-bending ribs and tightening components, the connection between the wire harness and the transition seat is protected from multiple dimensions such as outer protection, anti-bending, and fixed sealing, reducing the risk of exposed wires caused by wear and bending, and reducing the risk of short circuits. 3. By combining conductive terminals with arc-shaped elastic conductive contacts, the conductive contact area is increased, the contact resistance is reduced, and the conductivity stability is improved. At the same time, the addition of an insulating protective layer and a rubber sealing ring enhances the electrical safety and sealing protection of the device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of this application; Figure 2 This is a structural schematic diagram of the docking assembly and the wire harness protection assembly in this application, in which the transition seat, docking seat and protective sleeve sidewall are shown in cross section.

[0027] Reference numerals: 1. Transition seat; 11. Conductive terminal; 12. Conductive contact piece; 13. Rubber sealing ring; 14. Anti-slip strip; 15. Positioning ring; 2. Connecting assembly; 21. Connecting seat; 22. Elastic snap-fit ​​component; 23. Elastic sheet; 24. Locking block; 3. Wire harness protection assembly; 31. Protective sleeve; 32. Anti-bending rib plate; 33. Tightening component; 34. Tightening plate. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1 -Appendix Figure 2 This application will be described in further detail.

[0029] This application discloses a transition device for connecting vehicle headlight wiring harnesses.

[0030] Reference Figure 1 The transition device for connecting vehicle headlight wiring harnesses includes a transition seat 1, a docking assembly 2, and a wiring harness protection assembly 3. The transition seat 1 has an elliptical cylindrical structure with a wire-passing hole along its axial direction inside, through which the vehicle headlight wiring harness passes. The docking assembly 2 is fixedly installed at one end of the transition seat 1 for detachable and fixed connection with the vehicle headlight terminal. The wiring harness protection assembly 3 is fixedly installed at the other end of the transition seat 1 for protecting the connection point between the wiring harness and the transition seat 1.

[0031] Reference Figure 1 and Figure 2The docking assembly 2 includes a docking seat 21 and an elastic snap-fit ​​component 22. The docking seat 21 is integrally formed at the end of the transition seat 1. The outer diameter of the docking seat 21 is slightly smaller than that of the transition seat 1. A docking groove is formed inside the docking seat 21, which is coaxial with and connected to the wire hole. Two sets of elastic snap-fit ​​components 22 are provided, symmetrically distributed on the outer wall of the docking seat 21. Each set of elastic snap-fit ​​components 22 includes an elastic sheet 23 and a snap block 24. One end of the elastic sheet 23 is integrally formed with the outer wall of the docking seat 21, and the other end is inclined towards the outer side of the docking seat 21 to form an elastic deformation space. The snap block 24 is fixedly welded to the free end of the elastic sheet 23 and engages with the snap groove on the inner wall of the vehicle lamp terminal.

[0032] Reference Figure 1 and Figure 2 The elastic sheet 23 has good elastic deformation capability. The inclined structure allows the locking block 24 to drive the elastic sheet 23 to retract towards the side wall of the docking seat 21 under the squeezing action of the inner wall of the terminal when the docking seat 21 is inserted into the vehicle lamp terminal, facilitating smooth insertion. When the locking block 24 moves to the slot position, the elastic sheet 23 restores its deformation, pushing the locking block 24 into the slot to form a stable locking structure.

[0033] Reference Figure 1 and Figure 2 The wire harness protection assembly 3 includes a protective sleeve 31, anti-bending ribs 32, and a tightening member 33. One end of the protective sleeve 31 is integrally formed with the end of the transition seat 1 away from the docking seat 21, and the inner diameter of the protective sleeve 31 is consistent with the inner diameter of the wire hole. The anti-bending ribs 32 are made of rigid plastic material, and four are provided. The four anti-bending ribs 32 are evenly distributed along the inner sidewall of the protective sleeve 31, and the anti-bending ribs 32 are integrally formed with the inner sidewall of the protective sleeve 31.

[0034] Reference Figure 1 and Figure 2 The tightening component 33 includes a self-locking cable tie and a tightening plate 34. The self-locking cable tie is used to secure the wire harness at the end where it passes through the protective sleeve 31, achieving initial fixation of the wire harness. The tightening plate 34 is made of epoxy resin potting. After the wire harness passes through the protective sleeve 31 and is fixed by the self-locking cable tie, epoxy resin is potted and molded at the end of the protective sleeve 31, so that the tightening plate 34 is firmly integrated with the protective sleeve 31, the self-locking cable tie, and the wire harness.

[0035] Reference Figure 1 and Figure 2The transition seat 1 has a conductive terminal 11 fixedly embedded inside. The conductive terminal 11 is made of copper alloy, which has excellent conductivity. One end of the conductive terminal 11 extends into the mating groove, and the other end extends into the protective sleeve 31. The wire of the vehicle lamp wiring harness is welded and fixed to the end of the conductive terminal 11 located in the protective sleeve 31. After the vehicle lamp terminal is inserted into the mating groove, it makes conductive contact with the end of the conductive terminal 11 located in the mating groove. The inner wall of the transition seat 1 is integrally formed with an insulating protective layer made of polyvinyl chloride, which is used to isolate the conductive terminal 11 from the transition seat 1 to prevent leakage.

[0036] Reference Figure 1 and Figure 2 The inner wall of the docking groove is integrally formed with a conductive contact 12. The conductive contact 12 is made of beryllium copper, which has good elasticity and conductivity. The conductive contact 12 has an arc-shaped structure and is electrically connected to the conductive terminal 11. After the vehicle lamp wiring terminal is inserted into the docking groove, the conductive contact 12 fits tightly against the outer peripheral wall of the vehicle lamp wiring terminal under the action of elasticity, enhancing the conductive contact effect.

[0037] Reference Figure 1 and Figure 2 A rubber sealing ring 13 is fitted on the outer wall of the docking seat 21. The rubber sealing ring 13 is made of nitrile rubber, which has good sealing performance and aging resistance. Several anti-slip rubber strips 14 are integrally formed on the outer wall of the rubber sealing ring 13. The anti-slip rubber strips 14 are evenly distributed along the circumference of the rubber sealing ring 13 to increase the friction with the inner wall of the vehicle lamp wiring terminal.

[0038] Reference Figure 1 and Figure 2 A positioning ring 15 is fitted on the outer wall of the transition seat 1. The positioning ring 15 is made of hard plastic and is integrally formed with the transition seat 1. One side of the positioning ring 15 is flush with the end face of the docking seat 21, and the other side is in contact with the end face of the vehicle light wiring terminal to achieve docking positioning.

[0039] The working principle of this application embodiment is as follows: During installation, first, pass the vehicle light wiring harness through the wire hole of the transition seat 1, so that the end of the wiring harness extends into the protective sleeve 31. Weld the wire of the wiring harness to the conductive terminal 11 and fix it. Then, use self-locking cable ties to bundle the wiring harness. Fill the end of the protective sleeve 31 with glue to form a tightening plate 34, thus completing the fixation of the wiring harness and the transition device. Then, align the docking seat 21 with the vehicle light wiring terminal and insert it. During the insertion process, the arc-shaped guide surface of the locking block 24 is squeezed by the inner wall of the vehicle light wiring terminal, driving the elastic piece 23 to contract towards the side wall of the docking seat 21. When the locking block 24 moves to the slot position, the elastic piece 23 restores its deformation and pushes the locking block 24 into the slot to achieve docking and fixation. At this time, the rubber sealing ring 13 is squeezed to form a seal, and the positioning ring 15 fits against the end face of the vehicle light wiring terminal to complete the positioning.

[0040] During use, the snap-fit ​​between the elastic snap-fit ​​22 and the slot, as well as the limiting effect of the positioning snap ring 15, effectively prevents the connection from loosening due to vibration; the protective sleeve 31 and the anti-bending rib plate 32 protect the wiring harness connection from wear and excessive bending, and the tightening plate 34 achieves sealing protection; the cooperation between the conductive terminal 11 and the conductive contact 12 ensures stable conductivity, and the insulating protective layer and the rubber sealing ring 13 ensure electrical safety and sealing performance, thereby comprehensively improving the stability and protection of the vehicle light wiring harness connection.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A transition device for connecting vehicle headlight wiring harnesses, characterized in that: It includes a transition seat (1), a docking component (2) disposed at one end of the transition seat (1), and a wire harness protection component (3) disposed at the other end of the transition seat (1). The transition seat (1) has a wire hole inside, through which the vehicle light wire harness passes. The docking component (2) is used to detachably and fixedly connect with the vehicle light terminal. The wire harness protection component (3) is used to protect the connection between the wire harness and the transition seat (1).

2. The transition device for connecting vehicle lamp wiring harnesses according to claim 1, characterized in that: The docking component (2) includes: A docking seat (21) is provided at the end of the transition seat (1). A docking groove is provided inside the docking seat (21), and the docking groove is connected to the wire hole inside the transition seat (1). The elastic snap-fit ​​component (22) is disposed on the outer wall of the docking seat (21) and is used to engage with the slot on the inner wall of the vehicle lamp wiring terminal.

3. The transition device for connecting vehicle lamp wiring harnesses according to claim 2, characterized in that: The resilient snap-fit ​​member (22) includes: An elastic sheet (23) is provided at one end on the outer wall of the docking seat (21), and the other end of the elastic sheet (23) is inclined toward the outer wall of the docking seat (21). The locking block (24) is disposed on the free end of the elastic sheet (23) and is used to engage the slot on the inner wall of the vehicle lamp terminal.

4. The transition device for connecting vehicle lamp wiring harnesses according to claim 1, characterized in that: The wire harness protection assembly (3) includes: A protective sleeve (31) is provided on the end of the transition seat (1) away from the docking seat (21); A plurality of anti-bending ribs (32) are provided, and the plurality of anti-bending ribs (32) are evenly distributed on the inner side wall of the protective sleeve (31); Tightening member (33) is provided on protective sleeve (31) and is used to tighten and fix the wire harness inserted into protective sleeve (31).

5. A transition device for connecting vehicle headlight wiring harnesses according to claim 4, characterized in that: The tightening member (33) includes: Self-locking cable ties, the self-locking cable ties are tied to one end of the wire harness that passes through the protective sleeve (31); Tightening plate (34) is provided at the end of protective sleeve (31). The tightening plate (34) is integrally glued with protective sleeve (31), self-locking cable tie and wire harness when the wire harness is inserted into the protective sleeve (31).

6. A transition device for connecting vehicle headlight wiring harnesses according to claim 1, characterized in that: The transition seat (1) is provided with a conductive terminal (11). One end of the conductive terminal (11) extends into the mating groove and is used to make a conductive connection with the vehicle lamp wiring terminal. The other end of the conductive terminal (11) extends into the protective sleeve (31) and is used to make a conductive connection with the wire harness. The inner wall of the transition seat (1) is provided with an insulating protective layer.

7. A transition device for connecting vehicle headlight wiring harnesses according to claim 6, characterized in that: The inner wall of the docking groove is provided with a conductive contact piece (12), which is electrically connected to the conductive terminal (11). The conductive contact piece (12) is arc-shaped and elastic.

8. A transition device for connecting vehicle headlight wiring harnesses according to claim 2, characterized in that: A rubber sealing ring (13) is fitted on the outer wall of the docking seat (21).

9. A transition device for connecting vehicle lamp wiring harnesses according to claim 8, characterized in that: Several anti-slip strips (14) are evenly distributed on the outer wall of the rubber sealing ring (13).

10. A transition device for connecting vehicle lamp wiring harnesses according to claim 1, characterized in that: A positioning ring (15) is fitted on the outer wall of the transition seat (1), and the positioning ring (15) is in contact with the outer peripheral wall of the vehicle lamp wiring terminal.

Images