Steering wheel horn conduction structure
By using the insert molding connection of conductive wire and airbag bracket, combined with the plug-in structure of guide sleeve and locking buckle, the problems of complex and high cost of existing horn conduction structure are solved, and low-cost and stable electrical connection is achieved.
Patent Information
- Application Number
- CN202520591874.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-28
AI Technical Summary
The existing horn conduction structure has multiple horn contacts on the steering wheel, which leads to complex production molds and high copper sheet oxidation rate, increasing production costs.
By using conductive wires and airbag supports through insert molding, electrical connections of multiple interconnected components are achieved. Combined with the plug-in structure of guide sleeves, conductive sheets and locking buckles, the production process is simplified.
It reduced production costs, improved structural stability and production efficiency, and simplified the assembly process.
Smart Images
Figure CN223791551U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of automobile airbags, in particular to a horn on-off structure of a steering wheel. BACKGROUND
[0002] The horn is one of the important functions of an automobile, and the horn button is usually arranged on the steering wheel of the automobile, so that the driver can operate the horn at any time during driving. The horn button of many vehicle models is arranged at the middle position of the steering wheel. When the driver presses the horn button, a power loop is formed, so that the current can flow, thereby driving the horn to sound.
[0003] The existing horn on-off structure usually comprises a plurality of horn contacts arranged on the steering wheel, and the horn contacts serve as the negative pole of the circuit and form a loop with the positive pole of the power supply connected to the main body of the automobile. The contact structure comprises a column arranged on the steering wheel and a contact piece arranged at the end of the column, and the material of the contact piece is usually copper. The above-mentioned contact structure makes the mold for producing the steering wheel more complex, and the oxidation rate of the copper piece is high, so that the overall production cost is high. CONTENT OF THE UTILITY MODEL
[0004] In order to simplify the horn on-off structure of the steering wheel and reduce the production cost, the application provides a horn on-off structure of a steering wheel.
[0005] The horn on-off structure of the steering wheel provided by the application adopts the following technical scheme:
[0006] The horn on-off structure of the steering wheel comprises a steering wheel framework, an airbag support and an airbag module, the airbag module is installed on the airbag support, the airbag support is provided with a plurality of insertion columns, the steering wheel framework is provided with an insertion seat matched with the insertion columns one by one, the insertion seat is provided with a communication assembly, the airbag support is provided with a conductive wire for on-off with the communication assembly, the plurality of communication assemblies are connected through the conductive wire, and the conductive wire and the airbag support are insert-molded.
[0007] When the horn on-off structure of the steering wheel is used, the conductive wire on the airbag support is moved towards the insertion seat by pressing the airbag support, the power supply is connected after the conductive wire and the communication assembly abut, and sound is generated. Compared with the structure of the column and the contact piece, the connection of the plurality of communication assemblies is realized by only one conductive wire, which has the advantage of low cost. Meanwhile, the conductive wire and the airbag support are insert-molded, which has the effects of stable structure and convenient production.
[0008] Optionally, the communication assembly comprises a guide sleeve and a conductive piece, the guide sleeve is matched with the insertion seat in an insertion mode, and the guide sleeve is provided with an extension part for mounting the conductive piece.
[0009] By adopting the above technical solution, the structural composition of the connecting component is disclosed. The guide sleeve is fixedly connected to the plug socket by a plug-in method, and the conductive sheet is installed on the extension of the guide sleeve to realize the power connection of the conductive wire.
[0010] Optionally, the guide sleeve is provided with at least one positioning ridge, and the plug seat is provided with a positioning groove that mates with the positioning ridge.
[0011] By adopting the above technical solution, the cooperation of the positioning ridge and the positioning groove realizes the positioning connection between the plug and the guide sleeve, thereby improving the plugging effect of the guide sleeve.
[0012] Optionally, the guide sleeve is provided with a plurality of locking buckles that are fixed to the plug-in seat.
[0013] By adopting the above technical solution, the locking buckle and the plug-in seat are fixedly engaged, thereby fixing the guide sleeve and the plug-in seat. The locking buckle has the advantages of simple structure and convenient assembly.
[0014] Optionally, the inner wall of the plug-in seat is provided with a relief groove corresponding to each of the locking buckles. The relief groove is provided with a first guide slope, which gradually slopes towards the axis of the plug-in seat along the insertion direction of the locking buckle.
[0015] By adopting the above technical solution, the setting of the clearance groove can limit the insertion of the locking buckle and reduce the degree of deformation of the locking buckle. At the same time, the setting of the first guide slope can guide the deformation of the locking buckle, making the connection between the guide sleeve and the plug-in seat more convenient and labor-saving.
[0016] Optionally, the guide sleeve has an abutting terminal that abuts against the end face of the plug-in, thereby forming an insulating gap between the guide sleeve and the end face of the plug-in.
[0017] By adopting the above technical solution, the guide sleeve abuts against the end faces of the abutting terminal and the plug, reducing the contact area between the guide sleeve and the plug and reducing the current flowing in unnecessary paths.
[0018] Optionally, the conductive sheet is interference-fitted into the guide sleeve, and the bottom of the conductive sheet abuts against the plug-in socket.
[0019] By adopting the above technical solution, the conductive sheet and the socket come into contact, and power can be transferred to the socket.
[0020] Optionally, the steering wheel frame is provided with a retaining spring for fixing the insertion post.
[0021] By adopting the above technical solution, the snap ring can limit the position of the plug-in column, thereby improving the connection stability between the plug-in seat and the steering wheel frame.
[0022] Optionally, the side wall of the plug-in post is provided with a limiting groove for insertion of the retaining spring, and the limiting groove extends along the axis of the plug-in post.
[0023] By adopting the above technical solution, the setting of the limiting groove allows the snap ring to be inserted into the limiting groove, reducing the probability of the plug-in post disengaging from the plug-in seat. The limiting groove extends along the axis of the plug-in post, providing axial sliding space for the plug-in post.
[0024] Optionally, the end of the plug is provided with a driving ramp.
[0025] By adopting the above technical solution and setting the inclined surface, the snap-fit component can be driven to deform when the plug is inserted. After the limiting groove and the snap-fit component are aligned, the snap-fit component automatically resets and snaps into the limiting groove, which further improves the installation efficiency of the plug.
[0026] In summary, this application includes at least one of the following beneficial technical effects:
[0027] 1. By using a conductive wire, this application achieves the connection of multiple components with only one conductive wire compared to the structure of a column and contact sheet. This reduces costs. The conductive wire and airbag support are formed by insert molding, resulting in a stable structure and convenient production.
[0028] 2. This application makes the connection between the guide sleeve and the plug-in seat more convenient and labor-saving by setting the clearance groove and the first guide slope;
[0029] 3. This application reduces the probability of the plug pin detaching from the plug seat by setting the snap ring and the limiting groove, while reserving sufficient space for the axial sliding of the plug pin. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.
[0031] Figure 2 This is an exploded view of the airbag bracket and steering wheel frame according to an embodiment of this application.
[0032] Figure 3 This is an exploded view of the connecting components and the plug socket according to an embodiment of this application.
[0033] Figure 4 This is a cross-sectional schematic diagram of the connecting component and the plug socket after they are assembled according to an embodiment of this application.
[0034] Explanation of reference numerals in the attached drawings: 1. Steering wheel frame; 11. Connector; 111. Clearance groove; 1111. First guide slope; 1112. Positioning groove; 12. Limiting post; 2. Airbag bracket; 21. Connector; 211. Limiting groove; 212. Second guide slope; 3. Airbag module; 4. Spring component; 5. Connecting assembly; 51. Guide sleeve; 511. Extension; 5111. Connector slot; 5112. Pressing part; 512. Insulation gap; 513. Abutment terminal; 514. Locking buckle; 515. Positioning ridge; 52. Conductive sheet; 6. Conductive wire; 7. Snap ring component; 71. Insulating sleeve. Detailed Implementation
[0035] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0036] This application discloses a steering wheel horn conduction structure.
[0037] Reference Figure 1 A steering wheel horn conduction structure includes a steering wheel frame 1, an airbag bracket 2 slidably mounted on the steering wheel frame 1, and an airbag module 3 mounted on the airbag bracket 2. The airbag module 3 is consistent with the prior art steering wheel airbag and will not be described further in this application.
[0038] Reference Figure 2 The airbag bracket 2 is generally rectangular, with multiple insertion posts 21 on the side facing the steering wheel frame 1. The insertion posts 21 and the airbag bracket 2 are integrally formed. Each insertion post 21 is fitted with a spring 4, allowing the airbag bracket 2 to automatically return to its original position after being pressed. In this embodiment, the airbag bracket 2 has three insertion posts 21 arranged in a triangular pattern. The steering wheel frame 1 has insertion seats 11 corresponding to each of the three insertion posts 21, with through holes at the ends of the insertion seats 11 extending through both end faces.
[0039] A connecting component 5 is detachably mounted on the connector 11, and a conductive wire 6 for communicating with the connecting component 5 is installed on the airbag bracket 2. In this embodiment, the conductive wire 6 is a stainless steel conductive wire 6, and its overall shape is U-shaped. The conductive wire 6 and the airbag bracket 2 are fixed by injection molding. After the conductive wire 6 is wound into a U-shape, it is placed in the injection mold used to form the airbag bracket 2, so that the airbag bracket 2 and the conductive wire 6 are embedded.
[0040] Reference Figure 3 and Figure 4The connecting component 5 includes a guide sleeve 51 and a conductive sheet 52. The guide sleeve 51 is annularly inserted into the end face of the connector 11, and an extension 511 for mounting the conductive sheet 52 is integrally provided on the outer side of the guide sleeve 51. The conductive sheet 52 is U-shaped, and the extension 511 has a connector groove 5111 for inserting the conductive sheet 52. The extension 511 has clamping parts 5112 on opposite sides of the connector groove 5111 for clamping the conductive sheet 52, thereby reducing the probability of the conductive sheet 52 detaching from the extension 511.
[0041] The conductive sheet 52 is inserted into the extension 511 with an interference fit, so that one side of the conductive sheet 52 abuts against the end face of the plug-in 11 to achieve conductivity. An insulating gap 512 is formed between the guide sleeve 51 and the end face of the plug-in 11. The guide sleeve 51 is integrally provided with a plurality of abutment terminals 513 in the insulating gap 512. The guide sleeve 51 achieves support and abutment with the plug-in 11 through the abutment terminals 513.
[0042] The inner wall of the guide sleeve 51 has locking buckles 514 that are inserted into the connector 11. The guide sleeve 51 is fixedly connected to the connector 11 by the locking buckles 514. Specifically, the guide sleeve 51 has three locking buckles 514, which are spaced apart circumferentially along the axis of the guide sleeve 51. The inner hole of the connector 11 has relief grooves 111 that correspond one-to-one with the locking buckles 514. The relief grooves 111 provide initial positioning for the insertion of the guide sleeve 51.
[0043] The connector 11 is also provided with a first guide slope 1111 of the guide locking buckle 514 in the relief groove 111. The first guide slope 1111 gradually tilts inward along the installation direction of the locking buckle 514 so that the locking buckle 514 can gradually tilt inward along the first guide slope 1111. After the locking buckle 514 is disengaged from the relief groove 111, it automatically snaps into the bottom surface of the connector 11.
[0044] To further improve the connection stability between the guide sleeve 51 and the connector 11, at least one positioning ridge 515 is provided on the guide sleeve 51, and the end face of the connector 11 has a positioning groove 1112 that corresponds one-to-one with the positioning ridge 515. Through the cooperation of the positioning ridge 515 and the positioning groove 1112, the probability of circumferential rotation of the guide sleeve 51 is reduced, thus ensuring the stability of the guide sleeve 51.
[0045] The upper limit of the steering wheel frame 1 is equipped with a retaining spring 7 for fixing the insertion post 21. The retaining spring 7 is linear, and the steering wheel frame 1 has a limiting post 12 and a limiting surface for the retaining spring 7 to abut against, so that the retaining spring 7 has the elastic force to restore its deformation.
[0046] The retaining spring 7 passes radially through the bottom of the connector 11. The side wall of the connector 21 has a limiting groove 211 for the retaining spring 7 to engage, and the limiting groove 211 faces the center of the steering wheel frame 1. The limiting groove 211 is a strip-shaped groove, and its extension direction is parallel to the axis of the connector 21, providing sliding space for the connector 21 to slide. The end of the connector 21 also has a second guide slope 212. Through the second guide slope 212, the retaining spring 7 can be driven to deform towards the center of the steering wheel frame 1 when the connector 21 is installed. After the limiting groove 211 and the retaining spring 7 are aligned, the retaining spring 7 automatically snaps into the limiting groove 211 after restoring its deformation. The retaining spring 7 is also fitted with an insulating sleeve 71, which corresponds one-to-one with the three connectors 21 to ensure insulating contact between the retaining spring 7 and the connectors 21.
[0047] The implementation principle of the steering wheel horn conduction structure in this application embodiment is as follows: After the conductive wire 6 is wound, it is placed in the injection mold and integrally formed with the airbag bracket 2; the conductive sheet 52 is inserted into the extension 511 to complete the assembly of the connecting component 5; the guide sleeve 51 is inserted into the plug seat 11 and fixed by the locking buckle 514; the retaining spring 7 is installed on the steering wheel frame 1 for limiting; finally, the airbag bracket 2 is installed, and the plug post 21 is passed through the guide sleeve 51 and the plug seat 11 in sequence, and the airbag bracket 2 is fixed by the limiting groove 211 and the retaining spring 7.
[0048] 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 steering wheel horn conduction structure, comprising a steering wheel frame (1), an airbag bracket (2), and an airbag module (3), wherein the airbag module (3) is mounted on the airbag bracket (2), the airbag bracket (2) is provided with a plurality of plug-in pins (21), and the steering wheel frame (1) is provided with plug-in seats (11) that mate with each of the plug-in pins (21), characterized in that, The connector (11) is provided with a connecting component (5), and the airbag bracket (2) is provided with a conductive wire (6) for communicating with the connecting component (5). Multiple connecting components (5) are connected through the conductive wire (6), and the conductive wire (6) and the airbag bracket (2) are embedded.
2. The steering wheel horn conduction structure according to claim 1, characterized in that, The connecting component (5) includes a guide sleeve (51) and a conductive sheet (52). The guide sleeve (51) and the plug-in socket (11) are plugged into each other. The guide sleeve (51) is provided with an extension (511) for mounting the conductive sheet (52).
3. The steering wheel horn conduction structure according to claim 2, characterized in that, The guide sleeve (51) is provided with a plurality of locking buckles (514) that are fixed to the plug-in seat (11).
4. The steering wheel horn conduction structure according to claim 3, characterized in that, The inner wall of the plug-in seat (11) is provided with a relief groove (111) corresponding to the locking buckle (514). The relief groove (111) is provided with a first guide slope (1111). The first guide slope (1111) gradually tilts towards the axis of the plug-in seat (11) along the insertion direction of the locking buckle (514).
5. A steering wheel horn conduction structure according to claim 2, characterized in that, The guide sleeve (51) is provided with at least one positioning ridge (515), and the plug-in seat (11) is provided with a positioning groove (1112) that is engaged with the positioning ridge (515).
6. A steering wheel horn conduction structure according to claim 2, characterized in that, The guide sleeve (51) has an abutting terminal (513) that abuts against the end face of the plug (11), and the abutting terminal (513) forms an insulating gap (512) between the guide sleeve (51) and the end face of the plug (11).
7. A steering wheel horn conduction structure according to claim 2, characterized in that, The conductive sheet (52) is inserted into the guide sleeve (51) with an interference fit, and the bottom of the conductive sheet (52) abuts against the plug-in seat (11).
8. The steering wheel horn conduction structure according to claim 1, characterized in that, The steering wheel frame (1) is provided with a retaining spring (7) for fixing the plug (21).
9. A steering wheel horn conduction structure according to claim 8, characterized in that, The side wall of the plug (21) is provided with a limiting groove (211) for insertion into the snap ring (7), and the limiting groove (211) extends along the axis of the plug (21).
10. A steering wheel horn conduction structure according to claim 9, characterized in that, The end of the plug (21) is provided with a second guide slope (212) for abutting against the snap ring (7).