WO2024060495A1 - 一种方向盘阻尼装置及汽车方向盘阻尼系统 - Google Patents
一种方向盘阻尼装置及汽车方向盘阻尼系统 Download PDFInfo
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- WO2024060495A1 WO2024060495A1 PCT/CN2023/075921 CN2023075921W WO2024060495A1 WO 2024060495 A1 WO2024060495 A1 WO 2024060495A1 CN 2023075921 W CN2023075921 W CN 2023075921W WO 2024060495 A1 WO2024060495 A1 WO 2024060495A1
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- WIPO (PCT)
- Prior art keywords
- elastic
- steering wheel
- rib
- inclined surface
- damping device
- Prior art date
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- 238000013016 damping Methods 0.000 title claims abstract description 71
- 238000003780 insertion Methods 0.000 claims abstract description 96
- 230000037431 insertion Effects 0.000 claims abstract description 96
- 230000007704 transition Effects 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000013459 approach Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/04—Hand wheels
- B62D1/11—Hand wheels incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
Definitions
- This specification relates to the technical field of automobile steering wheels, and specifically to a steering wheel damping device and an automobile steering wheel damping system.
- China Patent Network Publication No. CN111801511A discloses a damper unit used in a shock absorber assembly of a steering wheel.
- the elastic damper element is molded on the inner sleeve and has a plurality of elastic members forming a radially outer joint surface.
- the ribs and a plurality of elastic support columns spaced apart from each other in the circumferential direction are flexible in all directions transverse to said axis.
- This application achieves the damping effect on the steering wheel by using a plurality of elastic ribs arranged at intervals.
- embodiments of this specification provide a steering wheel damping device and an automobile steering wheel damping system.
- the inner ribs and outer ribs are simultaneously damped, so that the entire elastic insertion part is deformed, which can avoid
- the elastic insertion part deforms greatly to prevent the bolts from colliding with the steel plate in the steering wheel;
- the closed gear-like structure design has better deformation characteristics and has a better effect on damping vibrations in the steering wheel in multiple directions.
- a steering wheel damping device including: an elastic body and a sleeve, the sleeve having a barrel portion extending in a main extension direction and an end portion of the barrel portion extending perpendicular to the main extension direction.
- An annular support part the elastic body is molded on the sleeve, the elastic support part is formed by covering the annular support part, and the elastic insertion part is formed by covering the barrel part, and the elastic insertion part is An elastic rib is provided at one end away from the elastic support part, and the elastic insertion part between the elastic rib and the elastic support part forms a clamping part with a radial size smaller than the elastic rib, and The elastic insertion part is configured to pass through the opening of the component to be installed, the elastic rib is configured to be located at or abut against one side of the opening, and the elastic support part is configured to be located at or abut against the side of the opening.
- the clamping part is configured to be embedded in the opening, and the elastic insertion part includes a plurality of inner ribs recessed from the outer surface of the elastic insertion part and an inner rib facing from the inner surface of the elastic insertion part. There are protruding outer ribs, and the inner ribs and the outer ribs are staggeredly arranged in the circumferential direction of the elastic insertion portion.
- a plurality of the inner ribs and a plurality of the outer ribs are integrally formed, and a plurality of the inner ribs and a plurality of the outer ribs are staggeredly distributed.
- the elastic insertion portion Form a closed gear-like structure.
- the inner rib includes a first inclined surface and a second inclined surface arranged in a V-shape, and the inner surface of the connecting portion of the first inclined surface and the second inclined surface at least partially abuts against the outer surface of the barrel portion.
- an end of the inner surface of the connecting portion close to the elastic support portion abuts against the outer surface of the barrel portion to form an abutting portion, and an end away from the elastic support portion extends radially outward along the barrel portion to form a first deformation portion.
- the elastic rib is provided on the outer surface of the outer rib, and the elastic rib and the first deformation part are located on the same horizontal plane.
- the first deformation part includes a first inclined surface, a first transition surface and a second inclined surface.
- the first inclined surface and the second inclined surface both gradually move away from said sleeve;
- the elastic rib includes a second deformation part
- the outer surface of the second deformation part includes a third inclined surface, a second transition surface and a fourth inclined surface, along the direction away from the elastic support part,
- the third inclined surface gradually moves away from the sleeve
- the fourth inclined surface gradually approaches the sleeve.
- the fourth inclined surface of the elastic rib and the second inclined surface of the top of the inner rib cooperate with each other, so that when the top of the elastic insertion part deforms downward when the force is applied in the Z direction, the elastic The ribs move downward as a whole.
- the end surface protrusion of the elastic support part connected to the elastic insertion part is provided with a plurality of first protrusions and a plurality of second protrusions, and a plurality of the first protrusions and a plurality of the second protrusions.
- a plurality of the first protrusions correspond to a plurality of the outer ribs
- a plurality of the second protrusions correspond to a plurality of the inner ribs.
- the first protrusion is cylindrical
- the second protrusion is elongated
- the height of the second protrusion is greater than the height of the first protrusion
- the outer surface of one or more of the inner ribs is provided with an outer filling part, the outer filling part is molded on the elastic insertion part, from the end close to the elastic support part to away from the elastic support part One end of the portion extends, and its length is less than or equal to the height of the clamping portion.
- the outer filling portion and/or the clamping portion abuts against the circumferential edge of the opening.
- a gap is provided between the outer circumference of the outer filling part and the circumferential edge of the opening.
- the upper surface and the outer circumference of the outer filling portion are flush with the clamping portion.
- the inner surface of one or more of the outer ribs is provided with an inner filling part
- the inner filling part is molded on the elastic insertion part, from the end close to the elastic support part to away from the elastic support part
- One end of the portion extends, and its length is less than or equal to the height of the clamping portion.
- the inner filling portion respectively abuts the inner surface of the outer rib and the outer surface of the barrel portion in the radial direction of the elastic insertion portion.
- An automobile steering wheel damping system includes a steering wheel frame, fasteners, a mounting plate, a spring element and a damping device as described in any one of the above.
- the mounting plate has a mounting hole, and the damping device extends from the mounting plate. One side penetrates the mounting hole so that the clamping part is embedded in the mounting hole, and the fastener passes through the sleeve from the other side of the mounting plate and is then fixed to the steering wheel frame, The spring element is sleeved on the fastener and supported between the elastic support portion of the damping device and the steering wheel frame.
- the beneficial effects achieved by at least one of the above technical solutions adopted in the embodiments of this specification at least include:
- the overall damping method is adopted, by making the outer surface of the elastic insertion part have an inner rib recessed inward, and at the same time the inner surface of the elastic insertion part has an outer rib protruding outward.
- the inner ribs and outer ribs are staggered, and the inner ribs and outer ribs are damped at the same time, so that The elastic insertion part deforms as a whole and has good deformation ability, which can prevent the elastic insertion part from deforming greatly, thereby preventing the bolt from colliding with the steel plate in the steering wheel.
- Figure 1 is a perspective cross-sectional view of a steering wheel damping device provided by the present invention
- Figure 2 is a three-dimensional cross-sectional view of a steering wheel damping device provided by the present invention without a sleeve;
- FIG. 3 is a schematic structural diagram of a steering wheel damping device provided by the present invention.
- Figure 4 is a schematic diagram of the force deformation structure of a steering wheel damping device provided by the present invention.
- Figure 5 is a cross-sectional view along the dotted line direction of Figure 4.
- Figure 6 is a schematic structural diagram of a steering wheel damping device provided by the present invention.
- FIG7 is a top view of FIG6
- Figure 8 is a cross-sectional view along the A-A direction of Figure 7;
- Figure 9 is a schematic structural diagram of a steering wheel damping device provided by the present invention.
- Figure 10 is a schematic structural diagram of the automobile steering wheel damping system provided by the present invention.
- a damping device in order to improve the stability of a car's steering wheel when driving in curves, a damping device is generally installed in the car's steering wheel through bolts to reduce the vibration of the steering wheel.
- the damper unit and damper assembly disclosed by China Patent Network with the publication number CN111801511A and another example is the vibration damping system for the steering wheel device of motor vehicles disclosed by China Patent Network with the publication number CN112739931A, in order to increase the stability of the steering wheel.
- the elastic ribs in the above two sets of applications are arranged at intervals from each other.
- the inventor designed a steering wheel damping device.
- the elastic insertion part is deformed as a whole.
- the elastic insertion part has good deformation ability while avoiding bolts, etc. Collision of parts.
- the technical problem solved by the present invention is to avoid noise caused by large vibration of the steering wheel.
- the solution adopted by the present invention includes: using an overall damping method, by making the outer surface of the elastic insertion part have an inner rib recessed inward, and at the same time, the inner surface of the elastic insertion part has an outer rib that protrudes outward, and the inner ribs and outer ribs are staggered Arrangement, through simultaneous damping of the inner and outer ribs, the elastic insertion part is deformed as a whole and has good deformation ability, thereby preventing the bolt from colliding with the sleeve and/or the steel plate in the steering wheel.
- a steering wheel damping device includes: an elastic body and a sleeve 2.
- the sleeve 2 has a barrel portion 21 extending in the main extension direction and an end of the barrel portion 21 located along a line perpendicular to the main extension direction.
- An annular support part 22 extending in the extension direction.
- the elastomer is molded on the sleeve 2.
- the elastomer and the sleeve 2 are integrally formed in the mold to facilitate manufacturing.
- the elastomer covers the annular support part.
- Part 22 forms an elastic support part 3, which can play an elastic buffering role.
- the elastic body covers part of the barrel part 21 to form an elastic insertion part 1.
- the elastic insertion part 1 is far away from the elastic support part.
- One end of 3 is provided with an elastic rib 4, and the elastic insertion part 1 between the elastic rib 4 and the elastic support part 3 forms a clamping part 5 with a radial size smaller than the elastic rib 4, so
- the elastic insertion part 1 is configured to pass through the opening of the component to be installed. By providing the opening, it is convenient for the elastic insertion part 1 to be installed through the component to be installed.
- the elastic rib 4 is configured to be located at or abut against the desired location.
- the elastic support part 3 is configured to be located on or in contact with the other side of the opening
- the clamping part 5 is configured to be embedded in the opening
- the elastic insertion part 1 includes a plurality of The inner ribs 11 are recessed from the outer surface of the elastic insertion part 1 and the outer ribs 12 protrude outward from the inner surface of the elastic insertion part 1.
- the inner ribs 11 and the outer ribs 12 are in the elastic insertion part 1
- the inner ribs 11 and the outer ribs 12 are staggered in the circumferential direction of the elastic insertion part 1.
- the inner ribs 11 and the outer ribs 12 are damped at the same time, so that the elastic insertion part 1 as a whole The deformation occurs so that the elastic insertion part 1 has better deformation characteristics, thereby avoiding large deformation of the elastic insertion part 1 due to large vibration.
- a plurality of the inner ribs 11 and a plurality of the outer ribs 12 are integrally formed, and a plurality of the inner ribs 11 and a plurality of the outer ribs 12 are staggeredly distributed.
- the elastic insertion part 1 forms a closed gear-like structure, and the inner rib 11 and the outer rib 12 form the elastic insertion part 1 of a closed gear-like structure, so that when the steering wheel vibrates due to the vibration transmitted to the steering wheel from the engine and the road, the elasticity The entire insertion part 1 deforms.
- the elastic insertion part 1 Since the elastic insertion part 1 is stressed as a whole, the inner ribs 11 and the outer ribs 12 restrain each other from deforming. The deformation amplitude of the elastic insertion part 1 is small, which can effectively improve the vibration amplitude of the steering wheel.
- the inner rib 11 includes a first inclined surface 111 and a second inclined surface 112 arranged in a V-shape.
- the inner portion of the connecting portion 113 of the first inclined surface 111 and the second inclined surface 112 is The surface at least partially abuts the outer surface of the barrel portion 21.
- the first slope 111 and the second slope 112 arranged in a V shape near the elastic support portion 3 of the inner rib 11 constitute the inner wall of the inner rib 11 to ensure that the The stability of the rib 11 when deformed, and the first inclined surface 111 and the second inclined surface 112 are connected through the connecting part 113.
- the inner surface of the connecting part 113 is in contact with the outer surface of the cylindrical part 21, and the cylindrical part 21 can
- the connecting portion 113 plays a certain limiting role to ensure the deformation direction of the inner rib 11 .
- one end of the inner surface of the connecting portion 113 close to the elastic support portion 3 is in contact with the outer surface of the barrel portion 21 to form a contact portion 114 .
- the contact portion 114 is formed between the connecting portion 113 and the barrel portion 21 .
- the V-shaped structure of the inner rib 11 forms a stable triangular force-bearing structure.
- the first inclined surface 111 and the second inclined surface 112 provide stable support, as shown in Figure 5.
- the radially outward pressure F along the cylinder portion 21 is decomposed into a component force F1 borne by the first inclined surface 111 and a component force F2 borne by the second inclined surface 112 to achieve excellent damping effect; at the same time, the closed contour structure can Prevent the sleeve 2 from colliding with surrounding components under extreme stress conditions.
- the shape of the connecting portion 113 can be designed according to different structures of the steering wheel, so that the length and/or the width of the abutting portion 114 can be adjusted to achieve vibration frequencies suitable for steering wheels with different structures and ensure the damping effect.
- the elastic rib 4 is provided on the outer surface of the outer rib 12 , and the elastic rib 4 and the first deformation part 115 are located on the same horizontal plane.
- the elastic rib 4 passes through the installation hole in the steering wheel, the elastic rib 4 is deformed by force and thereby pushes the first deformation part 115 to move radially inward of the sleeve 21.
- the elastic rib 4 is pushed back to maintain the clamping force.
- the elastic rib 4 By arranging the elastic rib 4 and the first deformation part 115 in the same horizontal plane, the elastic rib 4 can more easily pass through installation holes of different sizes, and at the same time, it can also ensure that effective clamping force is maintained after passing through the installation hole. .
- the first deformation part 115 includes a first inclined surface 1151, a first transition surface 1152 and a second inclined surface 1153.
- the first inclined surface 1151, the first transition surface 1152 and The second inclined surfaces 1153 are connected in sequence.
- the first inclined surface 1151 and the second inclined surface 1153 gradually move away from the sleeve 2, along the direction away from the elastic support part 3.
- the elastic rib 4 includes a second Deformation part 41, the outer surface of the second deformation part 41 includes a third inclined surface 411, a second transition surface 412 and a fourth inclined surface 413, between the three inclined surfaces 411, the second transition surface 412 and the fourth inclined surface 413 Connected in sequence, along the direction away from the elastic support part 3, the third inclined surface 411, the second transition surface 412 and the fourth inclined surface 413 are arranged in sequence.
- the fourth inclined surface 413 extends to the top of the second deformation part 41, along the direction away from the elastic support part 3. In the direction of the elastic support portion 3 , the third inclined surface 411 gradually moves away from the sleeve 2 , and the fourth inclined surface 413 gradually approaches the sleeve 2 .
- the second inclined surface 1153 can decompose the axial deformation of the top of the elastic insertion part 1 to the radial outward deformation of the sleeve 2, and this deformation trend is consistent with the third deformation on the outer rib 12.
- the extending directions of the four inclined surfaces 413 are similar, which causes the elastic rib 4 to deform downward and outward as a whole, thereby clamping the opening or peripheral parts of the belt mounting member more firmly.
- first inclined surface 1151, the first transition surface 1152 and the second inclined surface 1153 respectively correspond to the third inclined surface 411, the second transition surface 412 and the fourth inclined surface 413.
- the heights of the first inclined surface 1151 and the third inclined surface 411 are the same, the heights of the first transition surface 1152 and the second transition surface 412 are the same, and the heights of the second inclined surface 1153 and the fourth inclined surface 413 are the same. The same, to ensure that when the first deformation part 115 and the second deformation part 41 are stressed along the axial direction of the barrel part 21 , the first deformation part 115 and the second deformation part 41 deform simultaneously.
- the fourth inclined surface 413 of the elastic rib 4 and the second inclined surface 1153 of the top of the inner rib 11 cooperate with each other, so that the entire top of the elastic insertion part 1 moves downward when the force is applied in the Z direction.
- the elastic rib 4 moves downward as a whole.
- the fourth inclined surface 413 of the outer rib 12 and the second inclined surface 1153 of the inner rib 11 simultaneously The force deforms, causing the first deformation part 115 and the second deformation part 41 to deform simultaneously, so that the entire elastic insertion part 1 deforms downward.
- the degree of deformation is Smaller and with better deformation characteristics.
- the Z direction is the vertical direction from the top of the elastic insertion part 1 to the elastic support part 3, that is, the arrow direction as shown in Figure 4.
- the end surface of the elastic support part 3 connected to the elastic insertion part 1 is protrudingly provided with a number of first protrusions 31 and a number of second protrusions 32.
- a plurality of the first protrusions 31 and a plurality of the second protrusions 32 are staggeredly distributed, the plurality of the first protrusions 31 respectively correspond to the plurality of the outer ribs 12, and the plurality of the second protrusions 32 are respectively Corresponding to a plurality of the inner ribs 11 , the height of the second protrusion 32 is greater than the height of the first protrusion 31 .
- the outer surface of one or more of the inner ribs 11 is provided with an outer filling part 101, and the outer filling part 101 is molded on the
- the elastic insertion part 1 extends from the end close to the elastic support part 3 to the end far away from the elastic support part 3, and its length is less than or equal to the height of the clamping part 5,
- the outer filling part 101 and/or the clamping part 5 abuts on the circumferential edge of the opening.
- the inner rib 11 drives the outer filling part 101 In contact with the circumferential edge of the opening, the outer circumferential direction of the outer filling part 101 is in contact with the inner circumferential direction of the opening, ensuring the contact area between the outer filling part 101 and the opening, so that the force between the inner rib 11 and the opening can be uniform, and at the same time, the outer filling part 101 It can adjust the frequency to make the damping effect better.
- the outer circumferential direction of the outer filling portion 101 has a recessed portion that is concave in the axial direction of the cylinder portion 21 relative to the outer circumferential direction of the clamping portion 5, and the elastic insertion portion 1 passes through the opening of the component to be installed.
- the elastic insertion portion 1 passes through the opening of the component to be installed.
- the elastic insertion part 1 when the elastic insertion part 1 is not subject to damping, there is no contact between the outer filling part 101 and the circumferential edge of the opening.
- the inner ribs 11 drive the outer filling part 101 to move, and the outer filling part 101 is not in contact with the circumferential edge of the opening.
- the filling portion 101 is in contact with the circumferential edge of the opening.
- the upper surface and outer circumferential direction of the outer filling part 101 are flush with the clamping part 5 .
- the outer circumferential direction of the outer filling part 101 is opposite to the outer circumferential direction of the clamping part 5 Flush, the upper surface of the outer filling part 101 is flush with the upper surface of the clamping part 5.
- the outer filling part 101 and the clamping part 5 receive force simultaneously, and the outer filling part 101
- the outer circumferential direction and the outer circumferential direction of the clamping part 5 are in contact with the circumferential edge of the opening at the same time.
- the contact area between the outer filling part 101 and the clamping part 5 and the opening is large, which can further increase the service life.
- the contact point between the upper surface of the outer filling part 101 and the inner rib 11 is provided with a chamfer, which can serve as a transition to facilitate the insertion of the connecting part of the elastic insertion part 1 and the filling part 10 into the external installation piece, so that The filling portion 10 is in contact with the external mount.
- the inner surface of one or more of the outer ribs 11 is provided with an inner filling part 102, and the inner filling part 102 is molded on the
- the elastic insertion part 1 extends from the end close to the elastic support part 3 to the end away from the elastic support part 3, and its length is less than or equal to the height of the clamping part 5.
- the inner filling part 102 is in the elastic insertion part. 1 respectively abuts the inner surface of the outer rib 11 and the outer surface of the barrel 21 in the radial direction.
- the surface is in contact with the outer surface of the cylinder part 21.
- the outer rib 11 drives the inner filling part 102 to move. Since the inner filling part 102 is in contact with the outside of the cylinder part 21, the inner filling part 102 The contact area with the cylinder part 21 is large, which can increase the force-bearing area of the cylinder part 21, make the force on the cylinder part 21 more uniform, and ensure the service life.
- the embodiment of this specification provides an automobile steering wheel damping system, including a steering wheel frame 7, a fastener 6, a mounting plate 8, a spring element 9 and any of the above damping devices.
- the damping device penetrates the mounting hole from one side of the mounting plate 8 so that the clamping part 5 is embedded in the mounting hole.
- the fastener 6 is inserted from the mounting hole.
- the other side of the mounting plate 8 passes through the sleeve 2 and is fixed to the steering wheel frame 7.
- the spring element 9 is sleeved on the fastener 6 and supported on the elasticity of the damping device. between the support part 3 and the steering wheel frame 7.
- the elastic insertion part 1 deforms as a whole.
- the damping device is subject to the axial force of the fastener 6.
- the spring element 9 can play the role of buffering and providing reaction force. Under the same force, due to the elasticity The insertion part 1 is deformed as a whole, so the deformation of the elastic insertion part 1 is small.
- the mounting plate 8 can be used to install airbag devices or multimedia components, and can also be used as a horn plate to activate the car horn.
- the first protrusion 31 Before starting the car horn, the first protrusion 31 is in contact with the mounting plate 8.
- the first protrusion 31 affects the resonance frequency of vibration damping.
- the first protrusion 31 is compressed to the same height as the second protrusion 32, and the mounting plate 8 contacts the first protrusion 31 and the second protrusion 32 at the same time.
- the first protrusion 31 is a cylinder. shape
- the second protrusion 32 is in the shape of a strip
- the first protrusion 31 is arranged in a cylindrical shape, which not only ensures a flexible interface but also ensures axial compression when the whistle is started.
- first protrusion 31 and the second protrusion 32 can be made of materials with different elastic strengths.
- the height difference between the first protrusion 31 and the second protrusion 32 can also be determined according to the specific structure of the steering wheel. Design is not explained in detail here.
- the connecting piece 6 includes an integrally formed connecting section 63, a guide section 62 and a pressure plate section 61.
- the connecting section 63 is connected to the steering wheel frame 7, and the guide section 62 passes through the sleeve.
- the pressure plate section 61 is in contact with the end surface of the elastic insertion part 1 away from the elastic support part 3, and is connected to the steering wheel frame 7 through the connecting section 63.
- External threads can be provided on the connecting section 63 to facilitate the connection.
- the section 63 is screwed to the steering wheel frame 7, and the pressure plate section 61 is in contact with the top of the elastic insertion part 1, which can limit the position of the elastic insertion part 1.
- the higher protrusion on the elastic support part 3 is in contact with the installation
- the bottoms of the plates 8 are in contact, thereby enabling the installation of the damping device.
- a first distance gap is provided between the pressure plate section 61 and the rigid support plate 8, and a second distance is provided between the pressure plate section 61 and the elastic rib 4.
- the gap of the distance interferes with the gap of the third distance between the pressure plate section 61 and the top of the sleeve 2.
- the first distance is smaller than the second distance, and the first distance is smaller than the third distance.
- the numerical range of the first distance is generally 0.3 ⁇ 0.4mm, preferably 0.35mm.
- the numerical range of the second distance is generally 0.45 ⁇ 0.55mm, preferably 0.5mm.
- the numerical range of the third distance is generally 0.45 ⁇ 0.55mm, preferably is 0.5mm.
- the elastic insertion part 1 will be deformed by the pressure of the pressure plate section 61 , since the first distance is smaller than the third distance, when damping is performed, contact between the connecting piece 6 and the rigid support plate 8 and the top of the sleeve 2 can be avoided, thereby avoiding abnormal noise.
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Abstract
一种方向盘阻尼装置，包括弹性体和套筒（2），套筒具有主延伸方向延伸的筒部（21）和位于筒部一端沿垂直于主延伸方向延伸的环状支撑部（22），弹性体模制在套筒上，包覆环状支撑部部分形成弹性支撑部（3），包覆筒部部分形成弹性插入部（1），弹性插入部被配置为过盈穿过待安装件的开口，弹性插入部包括若干由弹性插入部外表面向内凹进的内肋（11）和由弹性插入部内表面向外突出的外肋（12），内肋和外肋在弹性插入部的周向上交错布置。该阻尼装置通过设置交错布置的内肋和外肋，通过内肋和外肋同时阻尼，使弹性插入部整体发生形变，能够避免弹性插入部形变较大，具有较好的形变能力，从而避免螺栓与方向盘内的钢板发生碰撞。
Description
本说明书涉及汽车方向盘技术领域，具体涉及一种方向盘阻尼装置及汽车方向盘阻尼系统。
为了提高汽车弯道驾驶方向盘的稳定性，一般都需要在汽车方向盘内安装阻尼装置来减少方向盘的振动。如中国专利网公开号为CN111801511A公开了一种用于方向盘的减震组件中的阻尼器单元，弹性阻尼器元件被模制在内套筒上，并具有形成径向外接合表面的多个弹性肋和多个弹性支撑柱，弹性支撑柱在圆周方向上相互间隔开，在横向于所述轴线的所有方向上是柔性的。该申请通过采用多个相互间隔设置的弹性肋实现对方向盘的阻尼效果，但是该阻尼器单元在使用的过程中发现，由于弹性肋采用相互间隔的方式进行设置，当方向盘振动较大时，螺栓容易压迫弹性肋向下形变较大，导致螺栓与套筒和/或方向盘内的钢板发生碰撞从而产生噪音。
有鉴于此，本说明书实施例提供一种方向盘阻尼装置及汽车方向盘阻尼系统，通过设置交错布置的内肋和外肋，通过内肋和外肋同时阻尼，使弹性插入部整体发生形变，能够避免弹性插入部形变较大，从而避免螺栓与方向盘内的钢板发生碰撞；采用的封闭式齿轮状结构设计具有更好的变形特性，对方向盘多方向上的震动阻尼起到更好的效果。
本说明书实施例提供以下技术方案：一种方向盘阻尼装置，包括：弹性体和套筒，所述套筒具有主延伸方向延伸的筒部和位于所述筒部一端沿垂直于主延伸方向延伸的环状支撑部，所述弹性体模制在所述套筒上，包覆所述环状支撑部部分形成弹性支撑部，包覆所述筒部部分形成弹性插入部，所述弹性插入部上远离所述弹性支撑部的一端设有弹性肋部，所述弹性肋部和所述弹性支撑部之间的所述弹性插入部形成径向尺寸小于所述弹性肋部的夹持部，所述弹性插入部被配置为过盈穿过待安装件的开口，所述弹性肋部被配置为位于或抵接在所述开口一侧，所述弹性支撑部被配置为位于或抵接在所述开口的另一侧，所述夹持部被配置为嵌入所述开口中，所述弹性插入部包括若干由所述弹性插入部外表面向内凹进的内肋和由所述弹性插入部内表面向外突出的外肋，所述内肋和所述外肋在所述弹性插入部的周向上交错布置。
优选的，若干所述内肋和若干所述外肋一体成型，若干所述内肋和若干所述外肋交错分布，在垂直于所述筒部主延伸方向的截面上，所述弹性插入部形成封闭的齿轮状结构。
优选的，所述内肋包括呈V型布置的第一斜面和第二斜面，所述第一斜面和第二斜面的连接部的内表面至少部分抵接在所述筒部外表面上。
优选的，所述连接部的内表面靠近所述弹性支撑部的一端抵接在所述筒部外表面形成抵接部，远离所述弹性支撑部的一端沿所述筒部径向向外延伸形成第一形变部。
优选的，所述弹性肋部设置在所述外肋的外表面，所述弹性肋部与所述第一形变部位于同一水平面上。
优选的，所述第一形变部包括第一倾斜面、第一过渡面和第二倾斜面，沿着远离所述弹性支撑部的方向，所述第一倾斜面和所述第二倾斜面均逐渐远离所述套筒；
和/或，所述弹性肋部包括第二形变部，所述第二形变部外表面包括第三倾斜面、第二过渡面和第四倾斜面，沿着远离所述弹性支撑部的方向，所述第三倾斜面逐渐远离所述套筒，所述第四倾斜面逐渐靠近所述套筒。
优选的，所述弹性肋部的所述第四倾斜面和所述内肋顶部的第二倾斜面相互配合，使得所述弹性插入部顶部在Z向受力时向下形变时，所述弹性肋部整体向下移动。
优选的，所述弹性支撑部的与所述弹性插入部相连接的端面凸出设置有若干第一凸起和若干第二凸起，若干所述第一凸起和若干所述第二凸起交错分布，若干所述第一凸起分别与若干所述外肋一一对应，若干所述第二凸起分别与若干所述内肋一一对应。
优选的，所述第一凸起为圆柱状，所述第二凸起为长条状，所述第二凸起的高度大于所述第一凸起的高度。
优选的，若干所述内肋中的一个或多个的外表面设置有外填充部，所述外填充部模制在所述弹性插入部上，从靠近弹性支撑部一端向远离所述弹性支撑部一端延伸，其长度小于或等于所述夹持部的高度。
所述弹性插入部在受到阻尼作用时，所述外填充部和/或所述夹持部抵接在所述开口的周向边缘上。
优选的，所述外填充部外周向与所述开口的周向边缘之间设有间隙，当所述弹性插入部顶部在Z向受力向下形变时，所述外填充部与所述开口的周向边缘相接触。
优选的，所述外填充部上表面和外周向与所述夹持部齐平。
优选的，若干所述外肋中的一个或多个的内表面设置有内填充部，所述内填充部模制在所述弹性插入部上，从靠近弹性支撑部一端向远离所述弹性支撑部一端延伸，其长度小于或等于所述夹持部的高度，所述内填充部在所述弹性插入部的径向上分别抵接所述外肋内表面和所述筒部外表面。
一种汽车方向盘阻尼系统，包括方向盘骨架、紧固件、安装板、弹簧元件和如上述任一项所述的阻尼装置，所述安装板上具有安装孔，所述阻尼装置从所述安装板一侧穿入所述安装孔使得所述夹持部嵌入到所述安装孔中，所述紧固件从所述安装板另一侧穿过所述套筒后固定到所述方向盘骨架上，所述弹簧元件套设在所述紧固件上并支撑在所述阻尼装置的所述弹性支撑部和所述方向盘骨架之间。
与现有技术相比，本说明书实施例采用的上述至少一个技术方案能够达到的有益效果至少包括：
采用整体阻尼的方式，通过使弹性插入部外表面向内凹进的内肋，同时弹性插入部内表面向外突出的外肋，内肋和外肋交错布置，通过内肋和外肋同时阻尼，使弹性插入部整体发生形变，具有较好的形变能力，能够避免弹性插入部形变较大，从而避免螺栓与方向盘内的钢板发生碰撞。
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1是本发明提供的一种方向盘阻尼装置的立体剖视图；
图2是本发明提供的一种方向盘阻尼装置省略套筒的立体剖视图；
图3是本发明提供的一种方向盘阻尼装置的结构示意图；
图4是本发明提供的一种方向盘阻尼装置的受力形变结构示意图；
图5是图4沿虚线方向的剖视图；
图6是本发明提供的一种方向盘阻尼装置的结构示意图；
图7是图6的俯视图；
图8是图7沿A-A方向的剖视图；
图9是本发明提供的一种方向盘阻尼装置的结构示意图；
图10是本发明提供的汽车方向盘阻尼系统的结构示意图。
下面结合附图对本申请实施例进行详细描述。
以下通过特定的具体实例说明本申请的实施方式，本领域技术人员可由本说明书所揭露的内容轻易地了解本申请的其他优点与功效。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。本申请还可以通过另外不同的具体实施方式加以实施或应用，本说明书中的各项细节也可以基于不同观点与应用，在没有背离本申请的精神下进行各种修饰或改变。需说明的是，在不冲突的情况下，以下实施例及实施例中的特征可以相互组合。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
要说明的是，下文描述在所附权利要求书的范围内的实施例的各种方面。应显而易见，本文中所描述的方面可体现于广泛多种形式中，且本文中所描述的任何特定结构及/或功能仅为说明性的。基于本申请，所属领域的技术人员应了解，本文中所描述的一个方面可与任何其它方面独立地实施，且可以各种方式组合这些方面中的两者或两者以上。举例来说，可使用本文中所阐述的任何数目和方面来实施设备及/或实践方法。另外，可使用除了本文中所阐述的方面中的一或多者之外的其它结构及/或功能性实施此设备及/或实践此方法。
还需要说明的是，以下实施例中所提供的图示仅以示意方式说明本申请的基本构想，图式中仅显示与本申请中有关的组件而非按照实际实施时的组件数目、形状及尺寸绘制，其实际实施时各组件的型态、数量及比例可为一种随意的改变，且其组件布局型态也可能更为复杂。
另外，在以下描述中，提供具体细节是为了便于透彻理解实例。然而，所属领域的技术人员将理解，可在没有这些特定细节的情况下实践所述方面。
现有技术中，为了提高汽车弯道驾驶方向盘的稳定性，一般都通过螺栓在汽车方向盘内安装阻尼装置来减少方向盘的振动。如中国专利网公开号为CN111801511A公开的阻尼器单元和阻尼器组件，再如中国专利网公开号为CN112739931A公开的用于机动车辆的方向盘装置的振动阻尼系统，以此来增加方向盘的稳定性，但是上述两组申请弹性肋均是采用相互间隔的方式进行设置的，当方向盘振动较大时，螺栓容易压迫弹性肋向下形变较大，导致螺栓与套筒和/或方向盘内的钢板发生碰撞从而产生噪音，为了降低噪音的产生，一般都还需要增加弹性垫，导致阻尼装置的使用较为不便。
发明人经过了广泛和深入的试验，设计出一种方向盘阻尼装置，通过设置交错布置的内肋和外肋，使弹性插入部整体发生形变，弹性插入部具有较好变形能力的同时避免螺栓等部件的碰撞。
本发明解决的技术问题是：避免因方向盘振动较大时产生噪音。
更具体的，本发明采用的解决方案包括：采用整体阻尼的方式，通过使弹性插入部外表面向内凹进的内肋，同时弹性插入部内表面向外突出的外肋，内肋和外肋交错布置，通过内肋和外肋同时阻尼，使弹性插入部整体发生形变，具有较好的形变能力，从而避免螺栓与套筒和/或方向盘内的钢板发生碰撞。
以下结合附图，说明本申请各实施例提供的技术方案。
如图1-图5所示，一种方向盘阻尼装置，包括：弹性体和套筒2，所述套筒2具有主延伸方向延伸的筒部21和位于所述筒部21一端沿垂直于主延伸方向延伸的环状支撑部22，所述弹性体模制在所述套筒2上，弹性体和套筒2在模具中一体成型，便于进行制造，弹性体包覆所述环状支撑部22部分形成弹性支撑部3，通过弹性支撑部3可以起到弹性缓冲的作用，弹性体包覆所述筒部21部分形成弹性插入部1，所述弹性插入部1上远离所述弹性支撑部3的一端设有弹性肋部4，所述弹性肋部4和所述弹性支撑部3之间的所述弹性插入部1形成径向尺寸小于所述弹性肋部4的夹持部5，所述弹性插入部1被配置为过盈穿过待安装件的开口，通过设置开口，便于弹性插入部1穿过待安装件进行安装，所述弹性肋部4被配置为位于或抵接在所述开口一侧，所述弹性支撑部3被配置为位于或抵接在所述开口的另一侧，所述夹持部5被配置为嵌入所述开口中，所述弹性插入部1包括若干由所述弹性插入部1外表面向内凹进的内肋11和由所述弹性插入部1内表面向外突出的外肋12，所述内肋11和所述外肋12在所述弹性插入部1的周向上交错布置，通过将内肋11和外肋12交错布置在弹性插入部1的周向上，当方向盘发生振动时，内肋11和外肋12同时阻尼，使弹性插入部1整体发生形变，使得弹性插入部1具有更好的形变特性，从而避免因振动较大导致弹性插入部1形变较大。
进一步的，若干所述内肋11和若干所述外肋12一体成型，若干所述内肋11和若干所述外肋12交错分布，在垂直于所述筒部21主延伸方向的截面上，所述弹性插入部1形成封闭的齿轮状结构，通过内肋11和外肋12形成封闭的齿轮状结构的弹性插入部1，使得由发动机和道路传递到方向盘的振动引起的方向盘振动时，弹性插入部1整体发生形变，由于弹性插入部1整体受力，内肋11和外肋12相互牵制形变，弹性插入部1的形变幅度较小，可以有效改善方向盘的振动幅度。
如图2所示，在一些实施方式中，所述内肋11包括呈V型布置的第一斜面111和第二斜面112，所述第一斜面111和第二斜面112的连接部113的内表面至少部分抵接在所述筒部21外表面上，内肋11的靠近弹性支撑部3的由成V型布置的第一斜面111和第二斜面112构成内肋11的内侧壁，保证内肋11的在发生形变时的稳定性，同时第一斜面111和第二斜面112之间通过连接部113相连接，连接部113的内表面与筒部21的外表面相抵接，筒部21可对连接部113起到一定的限位作用，保证内肋11的形变方向。
进一步的，所述连接部113的内表面靠近所述弹性支撑部3的一端抵接在所述筒部21外表面形成抵接部114，连接部113与筒部21之间形成抵接部114，当筒部21发生径向振动时，筒部21将振动通过抵接部114传递到第一斜面111和第二斜面112处进行阻尼，连接部113远离所述弹性支撑部3的一端沿所述筒部21径向向外延伸形成第一形变部115，通过第一形变部115在方向盘沿着筒部21的轴向振动时起到阻尼的作用。
需要说明的是，内肋11的V型构造形成稳定的三角受力结构，在受到套筒2的径向震动力，第一斜面111和第二斜面112提供稳定支撑，如图5所示，将沿筒部21径向向外的压力F分解成由第一斜面111承受的分力F1和由第二斜面112承受的分力F2，达到优异的阻尼效果；同时，封闭的轮廓结构，可防止在极端受力情况下，套筒2与周边零部件的撞击。可以根据方向盘的结构的不同，对连接部113的形状进行设计，从而对抵接部114的长短和/或抵接部114的宽度进行调节，实现适用不同结构方向盘的振动频率，保证阻尼效果。
更进一步的，所述弹性肋部4设置在所述外肋12的外表面，所述弹性肋部4与所述第一形变部115位于同一水平面上。弹性肋部4穿过方向盘内的安装孔时，弹性肋部4受力变形进而推动第一形变部115向套筒21径向内部移动，当穿过安装孔后，第一形变部115的弹性恢复力下推动弹性肋部4回弹保持夹紧力。通过将弹性肋部4和第一形变部115的设置在同一水平面内，使得弹性肋部4更容易穿过不同大小孔径的安装孔，同时还能保证穿过安装孔后保持有效的夹紧力。
如图2所示，在一些实施方式中，所述第一形变部115包括第一倾斜面1151、第一过渡面1152和第二倾斜面1153，第一倾斜面1151、第一过渡面1152和第二倾斜面1153之间依次连接，沿着远离所述弹性支撑部3的方向，所述第一倾斜面1151和所述第二倾斜面1153均逐渐远离所述套筒2，沿着远离弹性支撑部3的方向，第一倾斜面1151、第一过渡面1152和第二倾斜面1153依次设置，第二倾斜面1153延伸到第一形变部115的顶部；所述弹性肋部4包括第二形变部41，所述第二形变部41外表面包括第三倾斜面411、第二过渡面412和第四倾斜面413，三倾斜面411、第二过渡面412和第四倾斜面413之间依次连接，沿着远离弹性支撑部3的方向，第三倾斜面411、第二过渡面412和第四倾斜面413依次设置，第四倾斜面413延伸到第二形变部41顶部，沿着远离所述弹性支撑部3的方向，所述第三倾斜面411逐渐远离所述套筒2，所述第四倾斜面413逐渐靠近所述套筒2。
需要说明是，沿着远离弹性支撑部3的方向，由于第一形变部115的第二倾斜面1153的倾斜方向为逐渐远离套筒2，第二形变部41的第四倾斜面413逐渐靠近套筒2，因此当方向盘发生振动，内肋11和外肋12受到沿着套筒2轴向的力时，内肋11和外肋12的同时向两侧发生形变，具有较好的形变特性。弹性插入部1受到轴向振动力时，第二倾斜面1153能够将弹性插入部1顶部的轴向形变分解到向套筒2径向外侧形变，而这一形变趋势与外肋12上的第四倾斜面413的延伸方向相近，这就使得弹性肋部4整体向下并向外形变，进而更牢靠地夹紧带安装件的开口或周边零件。
还需要说明的是，第一倾斜面1151、第一过渡面1152和第二倾斜面1153分别与第三倾斜面411、第二过渡面412和第四倾斜面413相对应。在一个优选实施方式中，第一倾斜面1151和第三倾斜面411的高度相同，第一过渡面1152和第二过渡面412的高度相同，第二倾斜面1153和第四倾斜面413的高度相同，以保证第一形变部115和第二形变部41在沿着筒部21的轴向方向受力时，第一形变部115和第二形变部41同步发生形变。
进一步的，所述弹性肋部4的所述第四倾斜面413和所述内肋11顶部的第二倾斜面1153相互配合，使得所述弹性插入部1顶部整体在Z向受力时向下形变时，所述弹性肋部4整体向下移动，当弹性插入部1的顶部受到Z向向下的力时，外肋12的第四倾斜面413和内肋11的第二倾斜面1153同时受力发生形变，使得第一形变部115和第二形变部41同步发生形变，从而使得弹性插入部1的整体向下形变，在相同的力下，相比较相互间隔设置的弹性肋，形变程度更小，具有较好的形变特性。
需要说明的是，Z向为弹性插入部1顶部到弹性支撑部3的垂直方向，即如图4所示的箭头方向。
如图2-图3所示，在一些实施方式中，所述弹性支撑部3的与所述弹性插入部1相连接的端面凸出设置有若干第一凸起31和若干第二凸起32，若干所述第一凸起31和若干所述第二凸起32交错分布，若干所述第一凸起31分别与若干所述外肋12一一对应，若干所述第二凸起32分别与若干所述内肋11一一对应，所述第二凸起32的高度大于所述第一凸起31的高度，通过在弹性支撑部3的顶部设置交错分布的若干第一凸起31和若干第二凸起32。
如图6-图9所示，在一个优选的实施方式中，若干所述内肋11中的一个或多个的外表面设置有外填充部101，所述外填充部101模制在所述弹性插入部1上，从靠近弹性支撑部3一端向远离所述弹性支撑部3一端延伸，其长度小于或等于所述夹持部5的高度，
所述弹性插入部1在受到阻尼作用时，所述外填充部101和/或所述夹持部5抵接在所述开口的周向边缘上。
通过在内肋11的外表面设置外填充部101，当弹性插入部1顶部在Z向受力向下形变时（即弹性插入部1在受到阻尼作用时），内肋11带动外填充部101与开口周向边缘相接触，外填充部101外周向与开口内周向相接触，保证外填充部101与开口的接触面积，从而可以使得内肋11与开口之间受力均匀，同时外填充部101可以起到调节频率的作用，使得阻尼效果更好。
如图9所示，进一步的，所述外填充部101外周向具有相对夹持部5外周向更向筒部21轴心方向凹进的凹部，在弹性插入部1穿过待安装件的开口并安装到位时，所述外填充部101的外周向与所述开口的周向边缘之间设有间隙，当所述弹性插入部1顶部在Z向受力向下形变时，所述外填充部101向外形变与所述开口的周向边缘相接触。即，当弹性插入部1未受到阻尼作用时，外填充部101与开口的周向边缘之间不接触，当弹性插入部1在受到阻尼作用时，内肋11带动外填充部101运动，外填充部101与开口的周向边缘之间相接触。通过该凹部特征的布置，有效提高该装置整体的阻尼效果，在不改变主体结构的前提下，仅更改外填充部的构造即可实现不同频率需求的阻尼效果调节，提高了本装置的通用性。
如图6所示，更进一步的，所述外填充部101上表面和外周向与所述夹持部5齐平，通过将外填充部101的外周向设置成与夹持部5外周向相平齐，外填充部101的上表面与夹持部5的上表面相平齐，当弹性插入部1在受到阻尼作用时，外填充部101和夹持部5同步受力，外填充部101的外周向和夹持部5的外周向同时抵接在开口的周向边缘上，外填充部101和夹持部5与开口之间接触面积大，可进一步增加使用寿命。
需要说明的是，外填充部101上表面与内肋11的接触处设置有倒角，可以起到过渡的作用，以便于弹性插入部1与填充部10的连接部分插入外部安装件内，使得填充部10与外部安装件相接触。
如图7-图8所示，在一个优选的实施方式中，若干所述外肋11中的一个或多个的内表面设置有内填充部102，所述内填充部102模制在所述弹性插入部1上，从靠近弹性支撑部3一端向远离所述弹性支撑部3一端延伸，其长度小于或等于所述夹持部5的高度，所述内填充部102在所述弹性插入部1的径向上分别抵接所述外肋11内表面和所述筒部21外表面，通过在外肋11的内表面设置内填充部102，内填充部102的相对两侧分别与外肋11内表面和筒部21外表面相抵接，当弹性插入部1在受到阻尼作用时，外肋11带动内填充部102运动，由于内填充部102与筒部21的外部抵接，因此内填充部102与筒部21的接触面积较大，可增大筒部21的受力面积，使筒部21受力较为均匀，保证使用寿命。
如图10所示，基于相同发明构思，本说明书实施例提供一种汽车方向盘阻尼系统，包括方向盘骨架7、紧固件6、安装板8、弹簧元件9和上述任一项的阻尼装置，所述安装板8上具有安装孔，所述阻尼装置从所述安装板8一侧穿入所述安装孔使得所述夹持部5嵌入到所述安装孔中，所述紧固件6从所述安装板8另一侧穿过所述套筒2后固定到所述方向盘骨架7上，所述弹簧元件9套设在所述紧固件6上并支撑在所述阻尼装置的所述弹性支撑部3和所述方向盘骨架7之间。当阻尼装置进行阻尼时，弹性插入部1整体发生形变，阻尼装置受到紧固件6的轴向作用力，弹簧元件9可以起到缓冲和提供反作用力的作用，在相同的力下，由于弹性插入部1是整体形变，因此弹性插入部1的形变较小。
在不同的实施例中，安装板8可用于安装安全气囊装置或多媒体件，亦可作为喇叭板用于启动车笛。在启动车笛之前，第一凸起31与安装板8之间相接触，第一凸起31对振动阻尼的共振频率有影响，第二凸起32和安装板8之间存在一定的距离，车笛启动时，第一凸起31被压缩到与第二凸起32的同等高度，安装板8与第一凸起31和第二凸起32同时接触，所述第一凸起31为圆柱状，所述第二凸起32为长条状，第一凸起31采用圆柱状设置，既保证了柔性交界部又保证了车笛启动时的轴向压缩。
需要说明的是，第一凸起31和第二凸起32可采用不同弹性强度的材料制成，第一凸起31和第二凸起32之间的高度差，也可以根据方向盘的具体结构进行设计，这里不做详细的阐述。
实施中，所述连接件6包括一体成型的连接段63、导向段62和压板段61，所述连接段63与所述方向盘骨架7之间相连接，所述导向段62穿过所述套筒2，所述压板段61与所述弹性插入部1远离所述弹性支撑部3的端面相接触，通过连接段63与方向盘骨架7相连接，可在连接段63上开设外螺纹，使得连接段63与方向盘骨架7之间螺接，压板段61与弹性插入部1的顶端相接触，可对弹性插入部1起到限位的作用，弹性支撑部3上的较高的凸起与安装板8的底部相接触，从而实现对阻尼装置的安装。
进一步的，沿着所述套筒2轴向方向，所述压板段61与刚性支撑板8之间设置有第一距离的间隙，所述压板段61与弹性肋部4之间设置有第二距离的间隙干涉，所述压板段61与所述套筒2顶部设置有第三距离的间隙，所述第一距离小于所述第二距离，所述第一距离小于所述第三距离。第一距离的数值范围一般为0.3~0.4mm，优选为0.35mm，第二距离的数值范围一般为0.45~0.55mm，优选为0.5mm，第三距离的数值范围一般为0.45~0.55mm，优选为0.5mm。由于压板段61与安装板8之间第一距离的间隙小于压板段61与弹性肋部4之间第二距离的间隙干涉，在安装状态，弹性插入部1会受到压板段61的压力发生形变，由于第一距离小于第三距离，因此在进行阻尼时，能够避免连接件6与刚性支撑板8和套筒2顶部之间相接触，从而避免产生异响。
本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例侧重说明的都是与其他实施例的不同之处。尤其，对于后面说明的方法实施例而言，由于其与系统是对应的，描述比较简单，相关之处参见系统实施例的部分说明即可。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。
Claims (13)
- 一种方向盘阻尼装置，包括：弹性体和套筒（2），所述套筒（2）具有主延伸方向延伸的筒部（21）和位于所述筒部（21）一端沿垂直于主延伸方向延伸的环状支撑部（22），所述弹性体模制在所述套筒（2）上，包覆所述环状支撑部（22）部分形成弹性支撑部（3），包覆所述筒部（21）部分形成弹性插入部（1），所述弹性插入部（1）上远离所述弹性支撑部（3）的一端设有弹性肋部（4），所述弹性肋部（4）和所述弹性支撑部（3）之间的所述弹性插入部（1）形成径向尺寸小于所述弹性肋部（4）的夹持部（5），所述弹性插入部（1）被配置为过盈穿过待安装件的开口，所述弹性肋部（4）被配置为位于或抵接在所述开口一侧，所述弹性支撑部（3）被配置为位于或抵接在所述开口的另一侧，所述夹持部（5）被配置为嵌入所述开口中，其特征在于，所述弹性插入部（1）包括若干由所述弹性插入部（1）外表面向内凹进的内肋（11）和由所述弹性插入部（1）内表面向外突出的外肋（12），所述内肋（11）和所述外肋（12）在所述弹性插入部（1）的周向上交错布置。
- 根据权利要求1所述的方向盘阻尼装置，其特征在于，若干所述内肋（11）和若干所述外肋（12）一体成型，若干所述内肋（11）和若干所述外肋（12）交错分布，在垂直于所述筒部（21）主延伸方向的截面上，所述弹性插入部（1）形成封闭的齿轮状结构。
- 根据权利要求1所述的方向盘阻尼装置，其特征在于，所述内肋（11）包括呈V型布置的第一斜面（111）和第二斜面（112），所述第一斜面（111）和第二斜面（112）的连接部（113）的内表面至少部分抵接在所述筒部（21）外表面上。
- 根据权利要求3所述的方向盘阻尼装置，其特征在于，所述连接部（113）的内表面靠近所述弹性支撑部（3）的一端抵接在所述筒部（21）外表面形成抵接部（114），远离所述弹性支撑部（3）的一端沿所述筒部（21）径向向外延伸形成第一形变部（115）。
- 根据权利要求4所述的方向盘阻尼装置，其特征在于，所述弹性肋部（4）设置在所述外肋（12）的外表面，所述弹性肋部（4）与所述第一形变部（115）位于同一水平面上。
- 根据权利要求5所述的方向盘阻尼装置，其特征在于，所述第一形变部（115）包括第一倾斜面（1151）、第一过渡面（1152）和第二倾斜面（1153），沿着远离所述弹性支撑部（3）的方向，所述第一倾斜面（1151）和所述第二倾斜面（1153）均逐渐远离所述套筒（2）；和/或，所述弹性肋部(4)包括第二形变部（41），所述第二形变部（41）外表面包括第三倾斜面（411）、第二过渡面（412）和第四倾斜面（413），沿着远离所述弹性支撑部（3）的方向，所述第三倾斜面（411）逐渐远离所述套筒（2），所述第四倾斜面（413）逐渐靠近所述套筒（2）。
- 根据权利要求6所述的方向盘阻尼装置，其特征在于，所述弹性肋部(4)的所述第四倾斜面（413）和所述内肋（11）顶部的第二倾斜面（1153）相互配合，使得所述弹性插入部（1）顶部在Z向受力向下形变时，所述弹性肋部（4）整体向下移动。
- 根据权利要求1-7任一项所述的方向盘阻尼装置，其特征在于，若干所述内肋（11）中的一个或多个的外表面设置有外填充部（101），所述外填充部（101）模制在所述弹性插入部（1）上，从靠近弹性支撑部（3）一端向远离所述弹性支撑部（3）一端延伸，其长度小于或等于所述夹持部（5）的高度，所述弹性插入部（1）在受到阻尼作用时，所述外填充部（101）和/或所述夹持部（5）抵接在所述开口的周向边缘上。
- 根据权利要求8所述的方向盘阻尼装置，其特征在于，所述外填充部（101）外周向与所述开口的周向边缘之间留有间隙，当所述弹性插入部（1）顶部在Z向受力向下形变时，所述外填充部（101）受力形变与所述开口的周向边缘相接触。
- 根据权利要求8所述的方向盘阻尼装置，其特征在于，所述外填充部（101）上表面和外周向与所述夹持部（5）齐平。
- 根据权利要求1-7任一项所述的方向盘阻尼装置，其特征在于，若干所述外肋（11）中的一个或多个的内表面设置有内填充部（102），所述内填充部（102）模制在所述弹性插入部（1）上，从靠近弹性支撑部（3）一端向远离所述弹性支撑部（3）一端延伸，其长度小于或等于所述夹持部（5）的高度，所述内填充部（102）在所述弹性插入部（1）的径向上分别抵接所述外肋（11）内表面和所述筒部（21）外表面。
- 根据权利要求1-7任一项所述的方向盘阻尼装置，其特征在于，所述弹性支撑部（3）的与所述弹性插入部（1）相连接的端面凸出设置有若干第一凸起（31）和若干第二凸起（32），若干所述第一凸起（31）和若干所述第二凸起（32）交错分布，若干所述第一凸起（31）分别与若干所述外肋（12）一一对应，若干所述第二凸起（32）分别与若干所述内肋（11）一一对应；所述第一凸起（31）为圆柱状，所述第二凸起（32）为长条状，所述第二凸起（32）的高度大于所述第一凸起（31）的高度。
- 一种汽车方向盘阻尼系统，其特征在于，包括方向盘骨架（7）、紧固件（6）、安装板（8）、弹簧元件（9）和如权利要求1-12任一项所述的阻尼装置，所述安装板（8）上具有安装孔，所述阻尼装置从所述安装板（8）一侧穿入所述安装孔使得所述夹持部（5）嵌入到所述安装孔中，所述紧固件（6）从所述安装板（8）另一侧穿过所述套筒（2）后固定到所述方向盘骨架（7）上，所述弹簧元件（9）套设在所述紧固件（6）上并支撑在所述阻尼装置的所述弹性支撑部（3）和所述方向盘骨架（7）之间。
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| PCT/CN2023/075921 WO2024060495A1 (zh) | 2022-09-20 | 2023-02-14 | 一种方向盘阻尼装置及汽车方向盘阻尼系统 |
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| WO (1) | WO2024060495A1 (zh) |
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| CN115339502A (zh) * | 2022-09-20 | 2022-11-15 | 上海临港均胜汽车安全系统有限公司 | 一种方向盘阻尼装置及汽车方向盘阻尼系统 |
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| CN111801511A (zh) * | 2017-12-15 | 2020-10-20 | 威巴克佛雪达公司 | 阻尼器单元、阻尼器组件、制造阻尼器单元和阻尼器组件的方法 |
| CN112739931A (zh) * | 2019-05-15 | 2021-04-30 | 均胜安全系统德国有限公司 | 用于机动车辆的方向盘装置的振动阻尼系统 |
| CN215263392U (zh) * | 2021-07-05 | 2021-12-21 | 深圳市诺安环境安全股份有限公司 | 一种气体检测传感器的防震结构及气体检测传感器 |
| CN114348102A (zh) * | 2021-12-02 | 2022-04-15 | 浙江吉利控股集团有限公司 | 一种汽车方向盘及汽车 |
| CN115339502A (zh) * | 2022-09-20 | 2022-11-15 | 上海临港均胜汽车安全系统有限公司 | 一种方向盘阻尼装置及汽车方向盘阻尼系统 |
-
2022
- 2022-09-20 CN CN202211141460.7A patent/CN115339502A/zh not_active Withdrawn
- 2022-11-02 CN CN202211362752.3A patent/CN115571214A/zh active Pending
-
2023
- 2023-02-14 WO PCT/CN2023/075921 patent/WO2024060495A1/zh unknown
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| JP2016064808A (ja) * | 2014-09-24 | 2016-04-28 | タカタ株式会社 | ステアリングホイール |
| CN111801511A (zh) * | 2017-12-15 | 2020-10-20 | 威巴克佛雪达公司 | 阻尼器单元、阻尼器组件、制造阻尼器单元和阻尼器组件的方法 |
| CN110962911A (zh) * | 2018-09-28 | 2020-04-07 | 奥托立夫开发公司 | 车辆方向盘所具备的减振器结构 |
| CN112739931A (zh) * | 2019-05-15 | 2021-04-30 | 均胜安全系统德国有限公司 | 用于机动车辆的方向盘装置的振动阻尼系统 |
| CN210371377U (zh) * | 2019-08-22 | 2020-04-21 | 江西书源科技有限公司 | 一种净水器水泵的减震结构 |
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| CN114348102A (zh) * | 2021-12-02 | 2022-04-15 | 浙江吉利控股集团有限公司 | 一种汽车方向盘及汽车 |
| CN115339502A (zh) * | 2022-09-20 | 2022-11-15 | 上海临港均胜汽车安全系统有限公司 | 一种方向盘阻尼装置及汽车方向盘阻尼系统 |
| CN115571214A (zh) * | 2022-09-20 | 2023-01-06 | 上海临港均胜汽车安全系统有限公司 | 一种方向盘阻尼装置及汽车方向盘阻尼系统 |
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| CN115571214A (zh) | 2023-01-06 |
| CN115339502A (zh) | 2022-11-15 |
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