CN219007704U - Steering wheel loudspeaker presses sound device, steering wheel and vehicle - Google Patents

Abstract

A steering wheel loudspeaker pressing device, a steering wheel and a vehicle. The steering wheel loudspeaker pressing device comprises a steering wheel underframe, a damping part and a mounting part; the damping part protrudes from the steering wheel chassis, the protruding direction and the parallel direction are axial directions, the damping part comprises an axial elastic damping body, and the damping part comprises an axial top part and an axial bottom part, the top part is configured to face the air bag module, and the bottom part is fixed to the steering wheel chassis; the mounting part comprises a damping connecting piece and an airbag mounting piece, wherein the damping connecting piece is sleeved on the outer side of the elastic damping body, axially supports the airbag mounting piece and allows the airbag mounting piece to axially reciprocate; the steering wheel chassis comprises an air bag mounting piece and a steering wheel chassis, wherein the air bag mounting piece and the steering wheel chassis comprise axially-spaced horn triggering portions, and the air bag mounting piece moves along the axial direction to enable the axially-spaced horn triggering portions to contact to trigger a horn.

Description

Steering wheel loudspeaker presses sound device, steering wheel and vehicle

Technical Field

The utility model relates to the field of vehicle engineering, in particular to a steering wheel loudspeaker pressing device, a steering wheel and a vehicle.

Background

When the vehicle works, the steering wheel vibrates to cause discomfort to a driver, the vibration damper is arranged in the steering wheel to lighten the vibration, the air bag module in the steering wheel is used as the anti-vibration damping mass of the vibration damper, and in the scene, the vibration damper is also used for realizing the loudspeaker ringing function of the steering wheel, but the steering wheel has the problems of more parts, more matching parts, complex structure, easy abnormal sound generation and the like.

Disclosure of Invention

The utility model aims to provide a steering wheel loudspeaker pressing device, a steering wheel and a vehicle, which are used for improving the condition of complex structure.

In a first aspect, the present utility model provides a steering wheel horn signaling device, including a steering wheel chassis, a damping portion, and a mounting portion according to an embodiment of the present utility model;

the damping part protrudes from the steering wheel chassis, the protruding direction and the parallel direction are axial, the damping part comprises an axial elastic damping body, the damping part is provided with an axial top and a bottom, the top is configured to face the air bag module, and the bottom is fixed to the steering wheel chassis;

the mounting part comprises a damping connecting piece and an airbag mounting piece, wherein the damping connecting piece is sleeved on the outer side of the elastic damping body, axially supports the airbag mounting piece and allows the airbag mounting piece to axially reciprocate;

the steering wheel chassis comprises an air bag mounting piece and a steering wheel chassis, wherein the air bag mounting piece and the steering wheel chassis comprise axially-spaced horn triggering portions, and the air bag mounting piece moves along the axial direction to enable the axially-spaced horn triggering portions to contact to trigger a horn.

In one or more embodiments, the resilient damping body includes an axial top and bottom, the steering wheel chassis axially supporting the bottom of the resilient damping body;

the damping portion further includes a fastener including an axial top portion and a bottom portion, the top portion of the fastener extending from the top portion of the elastic damping body, the top portion of the fastener including a shoulder portion that compresses the top portion of the elastic damping body, the bottom portion of the fastener extending from the bottom portion of the elastic damping body and being secured to the steering wheel chassis.

In one or more embodiments, the bottom of the fastener is inserted through the steering wheel chassis, and the inserted portion thereof is provided with a fastening structure that connects the steering wheel chassis to keep the shoulder of the fastener pressed against the top of the elastic damping body.

In one or more embodiments, the threaded portion of the bottom of the fastener has threads, and the fastening structure includes a nut and the threads, the nut connecting the threads and abutting the steering wheel chassis.

In one or more embodiments, the airbag mount includes a plurality of holes, each of which is sleeved to an outer side of the damping link and slidably fits with the damping link.

In one or more embodiments, at least one of the apertures has a first mating clearance with the damping connection and at least one of the apertures has a second mating clearance with the damping connection, the first mating clearance being greater than the second mating clearance.

In one or more embodiments, at least one of the holes is an oblong hole having a third fit clearance in a length direction with the damping connection, the oblong hole having a fourth fit clearance in a width direction with the damping connection, the third fit clearance being greater than the fourth fit clearance.

In one or more embodiments, the plurality of holes includes a first hole, a second hole, and a third hole;

the first hole and the damping connecting piece have a fifth fit clearance;

the second hole and the damping connecting piece have a sixth fit clearance;

the third hole is a long round hole, a seventh fit clearance is formed between the third hole and the damping connecting piece in the length direction, and an eighth fit clearance is formed between the third hole and the damping connecting piece in the width direction;

wherein the fifth fit clearance is greater than the sixth fit clearance and the seventh fit clearance is greater than the eighth fit clearance.

In one or more embodiments, the length direction of the third hole is parallel to the line connecting the second hole and the third hole, and the width direction of the third hole is perpendicular to the line connecting the second hole and the third hole.

In a second aspect, the present utility model provides a steering wheel, according to an embodiment of the present utility model, the steering wheel includes an airbag module and the steering wheel horn sounding device described above;

the airbag module is mounted to the airbag mounting and includes an axial bottom portion, with the bottom portion of the airbag module facing the top portion of the damping portion.

In a third aspect, the utility model provides a vehicle comprising a steering wheel as described above according to an embodiment of the utility model.

The embodiment of the utility model has at least the following beneficial effects:

the loudspeaker triggering part is fixed on the chassis of the steering wheel, so that the structure is simplified, the assembly connection is omitted, the vibration of the joint is avoided, and the problems of abnormal sound, looseness and the like are avoided.

Drawings

The above and other features, properties and advantages of the present utility model will become more apparent from the following description in conjunction with the accompanying drawings and embodiments, in which:

FIG. 1 is an exploded view of a steering wheel horn signaling device according to one embodiment of the present application;

FIG. 2 is a cross-sectional view of the steering wheel horn signaling device of FIG. 1;

FIG. 3 is a front view of the airbag mount of FIG. 1;

FIG. 4 is a side view of the damping link of FIG. 1;

FIG. 5 is a cross-sectional view of the elastic damping body of FIG. 2;

FIG. 6 is a cross-sectional view of an annular protrusion of the steering wheel chassis of FIG. 2;

FIG. 7 is a cross-sectional view of the fastener of FIG. 2;

FIG. 8 is a cross-sectional view of the damping link of FIG. 2;

FIG. 9 is a cross-sectional view of the aperture of the airbag mount of FIG. 2;

reference numerals:

00-steering wheel loudspeaker pressing device;

01-steering wheel chassis;

11-an annular protrusion;

a top of the 111-annular protrusion;

112-a central passage of the annular protrusion;

113-the bottom of the annular protrusion;

02-a damping portion;

a top portion of the 21-damper portion;

22-the bottom of the damping portion;

23-an elastic damping body;

231-top of the elastic damping body;

232-the bottom of the elastic damping body;

233-a central passage of an elastic damping body;

234-grooves of the elastic damping body;

24-fasteners;

241-top of fastener;

2411-a shoulder;

242-the bottom of the fastener;

2421-a fastening structure;

24211-a nut;

03-an installation part;

31-damping connection;

311-a central passage of the damping connection;

312-a protrusion of the damping connection;

313-top of damping connection;

3131-a tab on top of the damping connection;

314-the bottom of the damping connection;

3141-a hook at the bottom of the damping connection;

3142-grooves at the bottom of the damping connection;

32-an airbag mount;

321-a hole of the balloon mount;

3211-a first aperture;

3212-a second aperture;

3213-a third pore;

322-protrusions of the balloon mount;

33-a spring;

331-top of the spring;

332-bottom of the spring;

04-horn trigger.

Detailed Description

Reference now will be made in detail to embodiments of the utility model, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation, not limitation, of the utility model. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made in the present utility model without departing from the scope or spirit of the utility model. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. Accordingly, it is intended that the present utility model cover the modifications and variations of this utility model provided they come within the scope of the appended claims and their equivalents.

In current steering wheel loudspeaker presses the device of making a sound, the loudspeaker ring has down loudspeaker contact, and the loudspeaker ring is fixed on the lower part latch of mounting member, and when the vehicle during operation, the steering wheel vibrates, and the junction vibration of loudspeaker ring and lower part latch leads to abnormal sound, not hard up scheduling problem.

Fig. 1 shows an exploded structure of a steering wheel horn sounding device 00 of one embodiment of the present application. As shown in fig. 1, the steering wheel horn signaling device 00 includes a steering wheel chassis 01. In the illustrated embodiment, the steering wheel chassis 01 is a pivot plate of the steering wheel frame, is located at the axial bottom of the steering wheel frame, is located at the center of the steering wheel frame, and is connected to the steering column in the steering wheel assembled state.

Fig. 2 shows a sectional view of the steering wheel horn pressing apparatus 00 in fig. 1 in the region of the damper portion 02 and the mounting portion 03. With further reference to fig. 2, the steering wheel horn signaling device 00 further comprises a damping portion 02, the damping portion 02 protruding from the steering wheel chassis 01 and thereby defining the aforementioned and the latter "axial direction", the axial direction being the protruding direction of the damping portion and its parallel direction, shown in broken lines in the figure and marked with "S", in this embodiment the axial direction being perpendicular to the steering wheel chassis 01, substantially parallel to the axis of the steering wheel. The damper portion 02 has a top portion 21 and a bottom portion 22 in the axial direction, the bottom portion 22 being fixed to the steering wheel chassis 01, the top portion 21 facing the airbag module in the steering wheel assembled state, the airbag module being located on the upper side of the top portion 21. The damping portion 02 includes an elastic damping body 23, the elastic damping body 23 being disposed in an axial direction, and the elastic damping body 23 illustratively includes a damping material, such as rubber, as will be described later in detail.

In the embodiment shown in fig. 2, the steering wheel horn signaling device 00 further comprises a mounting portion 03, the mounting portion 03 comprising a damping connection 31 and an air bladder mounting member 32. The damping connection member 31 is sleeved on the outer side of the elastic damping body 23, and the damping connection member 31 provides axial support for the air bag mounting member 32 and allows the air bag mounting member 32 to reciprocate in the axial direction, as will be described in detail below. In the steering wheel assembled state, the airbag module is mounted to the airbag mounting member 32, and the airbag mounting member 32 may be a part of the airbag module or may be a separate member to which the airbag module is attached, at an upper side of the airbag mounting member 32.

When the vehicle works, the steering column vibrates, the vibration is transmitted to the steering wheel chassis 01 connected with the steering column, in the steering wheel assembly state, the air bag module is connected to the steering wheel chassis 01 through the mounting part 03 and the damping part 02, the air bag module and the mounting part 03 serve as anti-vibration damping masses of the damping part 02, the vibration characteristics of the whole steering wheel are adjusted, and the vibration is relieved.

In the embodiment shown in fig. 2, the airbag mount 32 and the steering wheel chassis 01 include axially spaced horn trigger portions 04, the horn trigger portions 04 illustratively being horn contacts, the horn trigger portions 04 being provided by rivets, the horn trigger portions 04 being part of a horn trigger circuit, the horn trigger circuit being axially spaced, the horn trigger circuit being normally off, the horn not being triggered, the airbag mount 32 axially approaching the steering wheel chassis 01, the axially spaced horn trigger portions 04 being in contact with each other, the horn trigger circuit being on, the horn being triggered.

In the embodiment shown in fig. 2, the horn trigger portion 04 is fixed on the steering wheel chassis 01, so that a horn ring is omitted, and the assembly connection of the horn ring and the lower lock of the mounting member is avoided, thereby avoiding the vibration at the connection of the horn ring and the lower lock of the mounting member, and avoiding the problems of abnormal sound, looseness and the like.

Fig. 5 shows a sectional structure of the elastic damping body 23 in fig. 2. With further reference to fig. 5, the resilient damping body 23 includes an axial top 231 and a bottom 232, and with continued reference to fig. 2, the steering wheel chassis 01 axially supports the bottom 232 of the resilient damping body 23. In the embodiment shown in fig. 2, the steering wheel chassis 01 includes an annular protrusion 11, fig. 6 shows a cross-sectional structure of the annular protrusion 11 of the steering wheel chassis 01 in fig. 2, further referring to fig. 6, the core of the annular protrusion 11 is a central channel 112, the bottom surface of the bottom 232 of the elastic damper body 23 is in contact with the top surface of the top 111 of the annular protrusion 11, and the annular protrusion 11 axially supports the elastic damper body 23.

In the embodiment shown in fig. 2, the damping portion 02 further comprises a fastener 24, the fastener 24 passing through the central passage 233 of the core of the elastic damping body 23. Fig. 7 shows a cross-sectional structure of the fastener 24 in fig. 2, the later-described fastening structure 2421 is not shown, further referring to fig. 7, the fastener 24 includes an axial top portion 241, the top portion 241 of the fastener 24 is penetrated out from the top portion 231 of the elastic damping body 23, the top portion 241 of the fastener 24 includes an annular protruding shoulder 2411, an axial bottom surface of the shoulder 2411 presses against a top surface of the top portion 231 of the elastic damping body 23, and the elastic damping body 23 is just uncompressed or slightly compressed in the axial direction. The fastener 24 further includes an axial bottom 242, the bottom 242 of the fastener 24 extending from the bottom 232 of the resilient damping body 23 and into the central passage 112 of the annular projection 11, and being secured to the steering wheel chassis 01 by the annular projection 11, as discussed in greater detail below.

With continued reference to fig. 2, the bottom 242 of the fastener 24 is inserted through the steering wheel chassis 01, and in the illustrated embodiment, the central channel 112 of the annular projection 11 is an optical aperture, and the bottom 242 of the fastener 24 is inserted into the central channel 112 of the annular projection 11 and through the central channel 112, out the bottom surface of the bottom 113 of the annular projection 11. The threaded portion of the bottom 242 of the fastener 24 is provided with a fastening structure 2421, the fastening structure 2421 being connected to the steering wheel chassis 01 to keep the shoulder 2411 of the fastener 24 pressed against the top 231 of the resilient damping body 23. In the illustrated embodiment, the threaded portion of the bottom 242 of the fastener 24 is threaded, the fastening structure 2421 comprises a nut 24211 and the aforementioned threads, the nut 24211 being connected to the threads and against the bottom surface of the bottom 113 of the annular protrusion 11, the nut 24211 exerting a downward pulling force on the bottom 242 of the fastener 24 causing the shoulder 2411 of the fastener 24 to press against the top 231 of the resilient damping body 23. In another embodiment, the fastening structure 2421 is a rivet head, the protruding portion of the bottom 242 of the fastener 24 is deformed into the rivet head by an external force (e.g., a tap), the rivet head abuts against the bottom surface of the bottom 113 of the annular protrusion 11, and the rivet head applies a pulling force to the bottom 242 of the fastener 24, such that the shoulder 2411 of the fastener 24 compresses the top 231 of the resilient damping body 23. In yet another embodiment, the fastening structure 2421 is a welded structure, the protruding portion of the bottom 242 of the fastener 24 is welded to the bottom 113 of the annular protrusion 11, the welded structure connects the protruding portion of the bottom 242 of the fastener 24 and the bottom 113 of the annular protrusion 11, and the welded structure applies a downward pulling force to the bottom 242 of the fastener 24 such that the shoulder 2411 of the fastener 24 compresses the top 231 of the resilient damping body 23.

In another embodiment, the fastening member 24 is fastened to the steering wheel chassis 01 by screwing, the fastening member 24 rotates to rub against the elastic damping body 23 during screwing, the elastic damping body 23 is deformed to have internal stress, the rigidity of the elastic damping body 23 is increased, and the vibration damping performance is deteriorated. In the embodiment shown in fig. 2, the fastener 24 is fixed to the steering wheel chassis 01 by being inserted, so that the rotational friction elastic damper 23 is prevented from being deformed, and thus deterioration of vibration damping performance is prevented.

With continued reference to fig. 5, the annular outer surface of the resilient damping body 23 includes an annular groove 234, the groove 234 being radially recessed from the annular outer surface and having a rectangular cross-section. Fig. 8 shows a cross-sectional structure of the damping connection part 31 in fig. 2, further referring to fig. 8, the damping connection part 31 is a sleeve whose core is a central channel 311, and the annular inner surface of the damping connection part 31 includes an annular protrusion 312, the protrusion 312 protruding radially from the annular inner surface and having a rectangular cross-section adapted to the groove 234 of the elastic damping body 23. With continued reference to FIG. 2, the resilient damping body 23 is positioned within the central channel 311 of the damping connection member 31 with the tab 312 of the damping connection member 31 extending into the recess 234 of the resilient damping body 23 to socket the resilient damping body 23 with the damping connection member 31. The top 231 of the resilient damping body 23 is slightly higher than the axial top 313 of the damping link 31 such that the bottom surface of the shoulder 2411 of the top 241 of the fastener 24 is axially spaced from the top surface of the top 313 of the damping link 31. The bottom 232 of the elastic damping body 23 is higher than the axial bottom 314 of the damping connection 31 so that the annular projection 11 protrudes into the damping connection 31, the annular outer surface of the annular projection 11 being radially spaced from the inner surface of the damping connection 31. The bottom 314 of the damping link 31 is higher than the top surface of the steering wheel chassis 01 in the axial direction, and the bottom 314 of the damping link 31 is axially spaced from the steering wheel chassis 01.

With continued reference to fig. 2, the bladder mount 32 is a horn-type clicker plate, the bladder mount 32 includes a hole 321, the hole 321 is sleeved radially outward of the damper connector 31, fig. 9 shows a cross-sectional configuration of the hole 321 of the bladder mount 32 in fig. 2, further with reference to fig. 9, an annular inner surface of the hole 321 includes an annular protrusion 322, the protrusion 322 protrudes radially from the annular inner surface and has a generally rectangular cross-section, with continued reference to fig. 2, the annular inner surface of the protrusion 322 has a radial spacing from the annular outer surface of the damper connector 31 such that the hole 321 forms a clearance fit with the damper connector 31, allowing the bladder mount 32 to slide axially back and forth on the damper connector 31.

With continued reference to FIG. 2, the mounting portion 03 is provided with a spring 33, the spring 33 being disposed radially outwardly of the damper connector 31 and between the air bladder mounting member 32 and the axial direction of the damper connector 31, the axial bottom portion 314 of the damper connector 31 having a hook portion 3141, the hook portion 3141 projecting radially outwardly from the bottom portion 314 and extending axially upwardly to provide a recess 3142, the axial bottom portion 332 of the spring 33 being disposed within the recess 3142 and being axially supported, the axial top portion 331 of the spring 33 projecting into the bore 321 and axially supporting the axial bottom surface of the projection 322, the top portion 313 of the damper connector 31 including an annular projection 3131 projecting radially outwardly, the spring 33 supporting the projection 322 with its axial top surface against the axial bottom surface of the projection 3131, the projection 3131 of the damper connector 31 limiting upward movement of the air bladder mounting member 32 providing top dead center for axial reciprocation of the air bladder mounting member 32. In the steering wheel assembled state, when the driver presses the air bag module connected to the air bag mount 32 to trigger the horn, the air bag mount 32 moves axially downward against the supporting force of the spring 33, the horn trigger portion 04 on the air bag mount 32 moves axially downward, contacts the horn trigger portion 04 of the steering wheel chassis 01, and the horn trigger circuit is turned on to trigger the horn. In the steering wheel assembled state, when the driver releases the airbag module connected to the airbag mount 32 to stop triggering the horn, the spring 33 supports the airbag mount 32 to move axially upward, the horn trigger portion 04 on the airbag mount 32 moves axially upward, away from the horn trigger portion 04 of the steering wheel chassis 01, the horn trigger circuit is disconnected, the horn is not triggered, and the airbag mount 32 moves axially upward until its protrusion 322 is stopped by the protrusion 3131 of the damper connection member 31.

In another embodiment, the airbag mount is axially supported by the steering wheel chassis without being connected to the steering wheel chassis by a damping member, which allows vibration of the steering wheel chassis to be directly transmitted to the airbag mount without being damped by the damping member, and thus to an airbag module connected to the airbag mount in a steering wheel assembled state, a driver often touches or even places his/her hand on the airbag module while driving the vehicle, and the vibration of the airbag module causes the driver to feel uncomfortable while touching the airbag module. In the embodiment shown in fig. 2, the air bag mounting member 32 is axially supported by the damping connection member 31, and is connected to the steering wheel chassis 01 through the elastic damping body 23, so that vibration of the steering wheel chassis 01 is damped through the elastic damping body 23 and then transferred to the air bag mounting member 32, thereby reducing vibration of the air bag mounting member 32, further reducing vibration of an air bag module connected with the air bag mounting member 32 in a steering wheel assembly state, and improving comfort when a driver touches the air bag module. Furthermore, in the embodiment shown in fig. 2, the airbag mount 32 and the airbag module connected thereto in the steering wheel assembled state are used as anti-vibration damping masses, which are larger and have a better vibration damping effect.

With further reference to fig. 1, the aforementioned damper portion 02 and its corresponding features are plural, i.e., the damper portion 02, the damper connector 31, and the spring 33 are plural, the steering wheel chassis 01 is provided with a corresponding plurality of annular protrusions 11, and the air bag mount 32 is provided with a corresponding plurality of holes 321.

In one embodiment, the clearance fit between the plurality of apertures 321 and the plurality of damping attachments 31 is other. For example, each hole 321 has a large fit clearance with each dampening coupling member 31, but the holes 321 collapse in connection with the dampening coupling members 31, causing the bladder mounting member 32 to rock relative to the dampening coupling members 31. For another example, each hole 321 and each damping connection member 31 have a smaller fit clearance, but the air bag mounting member 32 and the damping connection member 31 are difficult to assemble, for example, the operation precision is not high during assembly, the damping connection member 31 and the holes 321 are not aligned, so that assembly clamping stagnation is caused, for example, the manufacturing precision is not enough, the damping connection member 31 and the holes 321 have different coaxial position errors, and the assembly clamping stagnation is caused during assembly. Fig. 3 shows a plurality of holes 321 of the balloon mount 32, and fig. 4 shows the diameter of the damping connection 31. As shown in fig. 3 and 4, the plurality of holes 321 includes at least one first hole 3211, the first hole 3211 and the damping connection 31 have a first fit gap, and the first fit gap is larger, allowing the damping connection 31 to be different from the first hole 3211, so as to facilitate alignment of the damping connection 31 and the first hole 3211 when assembling, and facilitate assembling of the damping connection 31 and the air bag mounting 32. The plurality of holes 321 includes at least one second hole 3212, the second hole 3212 and the damping connection member 31 have a second fit gap smaller than the first fit gap, the second fit gap is smaller, the assembled damping connection member 31 is not allowed to rotate in the second hole 3212, and certainly the assembled damping connection member 31 is not allowed to shake in the second hole 3212, the assembled damping connection member 31 cannot move relative to the second hole 3212, and the connection tightness of the damping connection member 31 and the air bag installation member 32 is ensured. The at least one first hole 3211 and the at least one second hole 3212 facilitate assembly and ensure connection tightness.

With continued reference to fig. 3 and 4, the plurality of holes 321 includes at least one third hole 3213, the third hole 3213 is an oblong hole, the third hole 3213 has a length direction (shown as x in the drawing), the third hole 3213 has a third fit gap with the damping connection 31 in the length direction, and the third fit gap is larger, allowing the assembled damping connection 31 to deviate from the third hole 3213 in the length direction, facilitating alignment of the damping connection 31 with the third hole 3213 in the length direction, and facilitating assembly of the damping connection 31 with the airbag mounting 32. The third hole 3213 further has a width direction (shown as y in the drawing), the third hole 3213 has a fourth fit gap smaller than the third fit gap with the damping link 31 in the width direction, the fourth fit gap is smaller, the assembled damping link 31 is not allowed to rotate in the third hole 3213, and certainly the assembled damping link 31 is not allowed to shake in the third hole 3213, the assembled damping link 31 cannot move relative to the third hole 3213, and the tightness of the connection of the damping link 31 with the air bag mounting 32 is ensured. The third holes 3213 are convenient to assemble, ensure connection tightness, reduce the number of holes 321 and simplify the structure. In another embodiment, at least two holes 321 (e.g., the first holes 3211 and the second holes 3212 described above) are provided to facilitate assembly and ensure tightness of connection, but the number of holes 321 is greater and the structure is not compact enough.

With continued reference to fig. 3 and 4, the plurality of holes 321 includes the first hole 3211, the second hole 3212 and the third hole 3213, where the second hole 3212 and the third hole 3213 form a limit, and all the damping connection pieces 31 after assembly are not allowed to rotate and shake, the reliability of connection after assembly is good, the tightness of installation of the air bag installation piece 32 is ensured, and the first hole 3211 and the third hole 3213 are convenient to assemble, and the tolerance is high during assembly, so that the installation of the air bag installation piece 32 is convenient. In another embodiment, the clearance fit between the plurality of holes 321 and the plurality of damping connectors 31 is other, for example, the plurality of holes 321 only includes one first hole 3211 and one second hole 3212, but only the second hole 3212 forms a limit, the reliability of the connection is poor, and once the limit at the second hole 3212 fails due to factors such as wear, the connection between the air bag mounting member 32 and the damping connectors 31 is loosened and swayed.

With continued reference to fig. 3, the length direction of the third hole 3213 is parallel to the line connecting the second hole 3212 and the third hole 3213, the width direction of the third hole 3213 is perpendicular to the line connecting the second hole 3212 and the third hole 3213, when the airbag mounting 32 has a tendency to rotate around the second hole 3212, not only does the second hole 3212 restrict the rotation tendency by restricting the rotation of the relative damping connection 31, but also the two straight sides of the third hole 3213 parallel to the length direction block the damping connection 31 to restrict the rotation tendency, thereby further improving the limit capability, improving the reliability of connection, and ensuring the tightness of the installation of the airbag mounting 32. In another embodiment, the third hole 3213 is disposed in other directions, for example, the length direction of the third hole 3213 is perpendicular to the line connecting the second hole 3212 and the third hole 3213, the width direction of the third hole 3213 is parallel to the line connecting the second hole 3212 and the third hole 3213, but when the airbag mounting 32 has a tendency to rotate around the second hole 3212, only the second hole 3212 restricts the rotation tendency by restricting the rotation with respect to the damping link 31, two straight sides of the third hole 3213 parallel to the length direction cannot block the damping link 31 to restrict the rotation tendency, the restriction capability is relatively poor, and the reliability of the connection is relatively poor.

In the embodiment shown in fig. 3, the three damping connection members 31 corresponding to the first hole 3211, the second hole 3212 and the third hole 3213 have the same diameter, the first hole 3211 is identical to the first fit gap of the damping connection member 31, and the third hole 3213 is identical to the third fit gap of the damping connection member 31 in the length direction, so that the diameter of the first hole 3211 is identical to the size of the third hole 3213 in the length direction, the second fit gap of the second hole 3212 is identical to the second fit gap of the damping connection member 31, and the third hole 3213 is identical to the size of the damping connection member 31 in the width direction, so that the diameter of the second hole 3212 is identical to the size of the third hole 3213 in the width direction. In another embodiment, the three damping attachments 31 are different in diameter, and accordingly, the first, second and third apertures 3211, 3212, 3213 are sized otherwise.

In the embodiment shown in fig. 3, the first holes 3211, the second holes 3212 and the third holes 3213 are distributed on the airbag mounting 32 at three corners of a substantially equilateral triangle, so that the balance of the structure is good, the stress is uniform and the stability is good.

A steering wheel (not shown) includes the steering wheel horn sounding device 00 described above, and the steering wheel further includes an airbag module (not shown) mounted to an airbag mount 32 of the steering wheel horn sounding device 00, and the airbag mount 32 may be a part of the airbag module or may be a separate member connected to the airbag module, with an axial bottom of the airbag module facing a top of the damping portion 02.

A vehicle (not shown) includes the steering wheel (not shown) described above.

It is noted that these and other figures are merely examples, which are not drawn to scale and should not be construed as limiting the scope of the utility model as it is actually claimed.

Claims (11)

1. A steering wheel loudspeaker presses sound device, its characterized in that:

comprising the following steps:

a steering wheel chassis;

a damping portion protruding from the steering wheel chassis in an axial direction and parallel thereto, including an axial elastic damping body having an axial top portion configured to face the airbag module and a bottom portion fixed to the steering wheel chassis; and

a mounting part including a damping connection member and an airbag mounting member, the damping connection member being coupled to an outer side of the elastic damping body and axially supporting the airbag mounting member and allowing the airbag mounting member to reciprocate in an axial direction;

the steering wheel chassis comprises an air bag mounting piece and a steering wheel chassis, wherein the air bag mounting piece and the steering wheel chassis comprise axially-spaced horn triggering portions, and the air bag mounting piece moves along the axial direction to enable the axially-spaced horn triggering portions to contact to trigger a horn.

2. The steering wheel horn signaling device of claim 1, wherein:

the elastic damping body comprises an axial top and a bottom, and the steering wheel underframe axially supports the bottom of the elastic damping body;

the damping portion further includes:

a fastener including an axial top portion and a bottom portion, the top portion of the fastener extending from the top portion of the resilient damping body, the top portion of the fastener including a shoulder that compresses the top portion of the resilient damping body, the bottom portion of the fastener extending from the bottom portion of the resilient damping body and being secured to the steering wheel chassis.

3. The steering wheel horn signaling device of claim 2, wherein:

the bottom of the fastener penetrates out of the steering wheel chassis in an inserting mode, and the penetrating-out part of the fastener is provided with a fastening structure which is connected with the steering wheel chassis so as to keep the shoulder of the fastener to press the top of the elastic damping body.

4. A steering wheel horn sounding device as claimed in claim 3, wherein:

the bottom of the fastener has threads on the threaded portion, and the fastening structure includes a nut and the threads, the nut being connected to the threads and abutting the steering wheel chassis.

5. The steering wheel horn signaling device of claim 1, wherein:

the air bag mounting piece comprises a plurality of holes, and each hole is sleeved on the outer side of the damping connecting piece and is in sliding fit with the damping connecting piece.

6. The steering wheel horn signaling device of claim 5, wherein:

at least one of the apertures has a first mating clearance with the damping connection and at least one of the apertures has a second mating clearance with the damping connection, the first mating clearance being greater than the second mating clearance.

7. The steering wheel horn signaling device of claim 5, wherein:

at least one of the holes is a slotted hole, the slotted hole and the damping connecting piece have a third fit clearance in the length direction, the slotted hole and the damping connecting piece have a fourth fit clearance in the width direction, and the third fit clearance is larger than the fourth fit clearance.

8. The steering wheel horn signaling device of claim 5, wherein:

the plurality of holes includes:

a first bore having a fifth mating clearance with the damping connection;

a second bore having a sixth mating clearance with the damping connection; and

the third hole is a long round hole, and has a seventh fit clearance with the damping connecting piece in the length direction and has an eighth fit clearance with the damping connecting piece in the width direction;

wherein the fifth fit clearance is greater than the sixth fit clearance and the seventh fit clearance is greater than the eighth fit clearance.

9. The steering wheel horn signaling device of claim 8, wherein:

the length direction of the third hole is parallel to the connecting line of the second hole and the third hole, and the width direction of the third hole is perpendicular to the connecting line of the second hole and the third hole.

10. A steering wheel, comprising:

a steering wheel horn sounding device as claimed in any one of claims 1 to 9; and

and the airbag module is arranged on the airbag mounting piece and comprises an axial bottom, and the bottom of the airbag module faces to the top of the damping part.

11. A vehicle comprising a steering wheel according to claim 10.

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