CN218644718U - Suspension of vehicle and vehicle - Google Patents

Abstract

The utility model discloses a suspension and vehicle of vehicle, the suspension of vehicle includes: the suspension body is internally provided with a cavity; the decoupling assembly is arranged in the cavity and internally provided with an inertia channel, a part of the cavity below the decoupling assembly forms a lower liquid chamber cavity, and the lower liquid chamber cavity is communicated with the inertia channel; the air chamber diaphragm is arranged in the cavity and positioned above the decoupling assembly, an upper liquid chamber is formed in the part of the cavity between the air chamber diaphragm and the decoupling assembly, the upper liquid chamber is communicated with the inertia channel, and an air chamber is formed in the part of the cavity above the air chamber diaphragm. An air chamber cavity is formed in the part above the air chamber diaphragm, and the pressure of the upper liquid chamber cavity and the pressure of the lower liquid chamber cavity are changed by changing the pressure of the air chamber cavity, so that the force applied by the outside to the suspension main body is changed, the suspension rigidity is improved or reduced, and the vibration reduction effect under all working conditions is realized.

Description

Suspension of vehicle and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a suspension and vehicle of vehicle are related to.

Background

At present, the main functions of a power suspension system are supporting, limiting and vibration isolating, so that a power assembly keeps a good motion posture in the working process, interference with peripheral parts is avoided, and generated motion excitation is reduced to a certain extent, so that drivers and passengers have a quiet and relaxed driving environment. The hydraulic suspension adopts an inertia channel-decoupling film type, and has the advantages of improving the phenomenon of high-frequency hardening of the rubber suspension and the inertia channel type hydraulic suspension under the action of high frequency, improving the NVH (noise, vibration and harshness) characteristic of the whole vehicle and keeping the vehicle in better comfort in the driving process.

In the related art, the decoupling membrane is movably arranged between the runner plate and the base, and then the runner plate and the base are connected through interference fit. However, the damping of the suspension cannot be changed correspondingly according to the working conditions, and the vibration damping effect under all working conditions cannot be realized.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a suspension of vehicle, the suspension of this vehicle can promote or reduce rigidity to can realize the damping effect of full operating mode.

The utility model discloses a vehicle is further proposed.

According to the utility model discloses a suspension of vehicle, include: the suspension body is internally provided with a cavity; the decoupling assembly is arranged in the cavity, an inertia channel is formed in the decoupling assembly, a lower liquid chamber cavity is formed in the part of the cavity below the decoupling assembly, and the lower liquid chamber cavity is communicated with the inertia channel; the air chamber diaphragm is arranged in the cavity and positioned above the decoupling assembly, an upper liquid chamber is formed in the part of the cavity between the air chamber diaphragm and the decoupling assembly, the upper liquid chamber is communicated with the inertia channel, and an air chamber is formed in the part of the cavity above the air chamber diaphragm.

According to the utility model discloses a suspension of vehicle, the part that corresponds air chamber diaphragm top at the cavity forms the air chamber, and through the pressure that changes the air chamber, the pressure in liquid chamber and lower liquid chamber is gone up in the change to change the external power of exerting force to the suspension main part, promote or reduce suspension rigidity, thereby can realize the damping effect of full operating mode.

In some examples of the invention, the suspension body comprises: the air chamber diaphragm and the decoupling assembly are arranged on the base in a spaced mode in the up-down direction.

The utility model discloses an in some examples, the inner wall of base is provided with the spacing muscle of inward bulge, spacing muscle is located the top of decoupling zero subassembly, the air chamber diaphragm set up in on the spacing muscle.

In some examples of the present invention, the air chamber diaphragm is bonded to the spacing rib; or the limiting rib is provided with a clamping part, and the air chamber diaphragm is clamped on the limiting rib; or the air chamber diaphragm is fixed on the limiting rib through a fastener; or the air chamber diaphragm is connected to the limiting rib in a vulcanization mode.

In some examples of the invention, the lower casing is detachably connected to the base.

In some examples of the invention, the suspension of the vehicle further comprises: a rubber ring vulcanized on the inner peripheral wall of the lower casing and located below the decoupling assembly.

In some examples of the invention, the suspension of the vehicle further comprises: a vent tube in communication with the air chamber cavity.

In some examples of the invention, the suspension of the vehicle further comprises: and the suspension main body is provided with a liquid injection hole corresponding to the decoupling assembly, and the liquid sealing bead is sealed at the liquid injection hole.

In some examples of the invention, the decoupling assembly comprises: the upper runner plate and the lower runner plate are arranged oppositely up and down, and the decoupling film is arranged between the upper runner plate and the lower runner plate and forms the inertial channel together with the upper runner plate and the lower runner plate.

According to the utility model discloses a vehicle, include: the suspension of the vehicle described above.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a suspension according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a suspension according to an embodiment of the invention;

fig. 3 is an exploded view of a suspension according to an embodiment of the present invention;

fig. 4 is a partial structural schematic diagram of a suspension according to an embodiment of the present invention.

Reference numerals:

1. suspension;

10. a suspension body; 11. a cavity; 110. a lower liquid chamber cavity; 111. an upper liquid chamber cavity; 112. a plenum chamber; 12. a main spring; 13. a base; 130. limiting ribs; 14. a lower case; 140. a clamping part; 15. a liquid injection hole; 20. a decoupling assembly; 21. an inertial channel; 22. an upper flow passage plate; 23. a lower flow field plate; 24. a decoupling membrane; 30. a gas chamber diaphragm; 40. a rubber ring; 50. a breather pipe; 60. and sealing the liquid beads.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

A suspension 1 of a vehicle according to an embodiment of the present invention is described below with reference to fig. 1 to 4.

As shown in fig. 1 to 3, a suspension 1 of a vehicle according to an embodiment of the present invention includes: a suspension body 10, a decoupling assembly 20 and an air chamber diaphragm 30. The suspension body 10 is a main body part of the suspension 1, and can play a role in installation and fixation. The decoupling assembly 20 can control the flow of liquid in the suspension 1, and meets the working condition requirements of low-frequency large amplitude and high-frequency small amplitude. And the air chamber diaphragm 30 can be deformed, so as to adjust the integral rigidity of the suspension 1.

As shown in fig. 2, a cavity 11 is formed in the suspension body 10, the decoupling assembly 20 is disposed in the cavity 11, an inertia channel 21 is formed in the decoupling assembly 20, a lower liquid chamber 110 is formed in a portion of the cavity 11 below the decoupling assembly 20, the lower liquid chamber 110 is communicated with the inertia channel 21, the air chamber diaphragm 30 is disposed in the cavity 11, the air chamber diaphragm 30 is located above the decoupling assembly 20, an upper liquid chamber 111 is formed in a portion of the cavity 11 between the air chamber diaphragm 30 and the decoupling assembly 20, the upper liquid chamber 111 is communicated with the inertia channel 21, and an air chamber 112 is formed in a portion of the cavity 11 above the air chamber diaphragm 30.

That is to say, the decoupling assembly 20 is integrally disposed at one position in the cavity 11, the cavity 11 forms a lower liquid chamber cavity 110 below the decoupling assembly 20, a portion of the cavity 11 between the air chamber diaphragm 30 and the decoupling assembly 20 forms an upper liquid chamber cavity 111, the upper liquid chamber cavity 111 and the lower liquid chamber cavity 110 can be filled with liquid, an inertia channel 21 is formed in the decoupling assembly 20, and the inertia channel 21 is respectively communicated with the upper liquid chamber cavity 111 and the lower liquid chamber cavity 110, so that the liquid in the upper liquid chamber cavity 111 and the liquid in the lower liquid chamber cavity 110 can flow through the inertia channel 21.

It should be noted that, during general low-frequency large-amplitude excitation, the decoupling assembly 20 is at the upper pole or the lower pole, and at this time, the liquid can only flow in the upper liquid chamber 111 and the lower liquid chamber 110 through the inertia channel 21, so that the stiffness of the whole suspension 1 is increased, and the effect of increasing damping and damping vibration is achieved. Under high frequency and small amplitude, the suspension body 10 compresses and extends along with external vibration, so that the volumes of the upper liquid chamber cavity 111 and the lower liquid chamber cavity 110 are subjected to high frequency and small amplitude change, the dynamic response of the liquid of the inertia channel 21 is gradually attenuated, the flow tends to be stopped, the decoupling assembly 20 mainly moves in a free stroke, the liquid of the upper liquid chamber cavity 111 and the lower liquid chamber cavity 110 can reach pressure balance through the up-and-down movement of the decoupling assembly 20 on one hand, and the liquid of the upper liquid chamber cavity 111 and the lower liquid chamber cavity 110 can also flow through the outer edge of the decoupling assembly 20 on the other hand.

The part of the cavity 11 above the air chamber diaphragm 30 forms an air chamber cavity 112, when the working condition of the vehicle changes, the controller of the vehicle changes the pressure of the air chamber cavity 112 through an air pump according to the vehicle condition to promote the state of the air chamber diaphragm 30 to change, when the air chamber diaphragm 30 protrudes downwards, the volumes of the upper liquid chamber cavity 111 and the lower liquid chamber cavity 110 become small, and then the pressures of the upper liquid chamber cavity 111 and the lower liquid chamber cavity 110 are increased, so that the force applied by the external change suspension main body 10 is correspondingly increased, and the purpose of improving the rigidity of the suspension 1 is achieved, when the air chamber diaphragm 30 sinks upwards, the volumes of the upper liquid chamber cavity 111 and the lower liquid chamber cavity 110 become large, and then the pressures of the upper liquid chamber cavity 111 and the lower liquid chamber cavity 110 are reduced, and the force applied by the external change rubber main spring 12 is correspondingly increased and reduced, so that the purpose of reducing the rigidity of the suspension 1 is achieved.

Therefore, an air chamber cavity 112 is formed in the part of the cavity 11 corresponding to the upper part of the air chamber diaphragm 30, the pressure of the upper liquid chamber cavity 111 and the pressure of the lower liquid chamber cavity 110 are changed by changing the pressure of the air chamber cavity 112, so that the force applied by the outside to the suspension main body 10 is changed, the rigidity of the suspension 1 is improved or reduced, and the vibration damping effect under all working conditions can be realized.

Specifically, as shown in fig. 1 to 3, the suspension body 10 includes: the main spring 12, the base 13 and the lower case 14, the main spring 12, the base 13 and the lower case 14 together define a cavity 11, the air chamber diaphragm 30 and the decoupling assembly 20 are disposed on the base 13, and the air chamber diaphragm 30 and the decoupling assembly 20 are disposed with a distance in the up-down direction. That is, the main spring 12, the base 13, and the lower case 14 are sequentially disposed in the up-down direction, the air chamber diaphragm 30 and the decoupling member 20 are disposed on the base 13, and the air chamber diaphragm 30 and the decoupling member 20 are disposed at a distance in the up-down direction, so that the arrangement is reasonable, the main spring 12 can be located in the air chamber cavity 112, a space can be left between the air chamber diaphragm 30 and the decoupling member 20 to form the upper liquid chamber cavity 111, and the lower case 14 can be located in the lower liquid chamber cavity 110.

In addition, as shown in fig. 4, the inner wall of the base 13 is provided with a limiting rib 130 protruding inward, the limiting rib 130 is located above the decoupling assembly 20, and the air chamber diaphragm 30 is disposed on the limiting rib 130. Be provided with inside convex spacing muscle 130 at the inner wall of base 13, the structural strength of base 13 can be strengthened to spacing muscle 130, make base 13 be difficult for receiving the damage, and air chamber diaphragm 30 sets up on spacing muscle 130, be convenient for fix air chamber diaphragm 30 like this, make air chamber diaphragm 30's setting more reliable and more stable, in addition, spacing muscle 130 is located decoupling zero subassembly 20's top, after air chamber diaphragm 30 sets up on spacing muscle 130, air chamber diaphragm 30 and decoupling zero subassembly 20 between can leave the space in the upper and lower direction, can form upper liquid chamber 111.

Of course, the air chamber diaphragm 30 is adhered to the limiting rib 130, or the limiting rib 130 is provided with a clamping portion, the air chamber diaphragm 30 is clamped on the limiting rib 130, or the air chamber diaphragm 30 is fixed on the limiting rib 130 through a fastener, or the air chamber diaphragm 30 is vulcanized and connected on the limiting rib 130. That is to say, can scribble the adhesive on air chamber diaphragm 30, air chamber diaphragm 30 can bond on spacing muscle 130 through the mode of bonding like this, it is comparatively convenient to bond like this, and air chamber diaphragm 30's fixed effect is better, or be provided with the part that the card was established on spacing muscle 130, air chamber diaphragm 30 is fixed on spacing muscle 130 through the mode that the card was established, the assembly is simple like this, can promote air chamber diaphragm 30's installation effectiveness, or directly use the fastener, be fixed in air chamber diaphragm 30 on spacing muscle 130 through the fastener, can make air chamber diaphragm 30's connection more firm like this, promote the stability and the reliability of air chamber diaphragm 30 installation, or air chamber diaphragm 30 vulcanizes and connects on spacing muscle 130 again, through the mode of vulcanizing, can make air chamber diaphragm 30 be fixed in on spacing muscle 130, simultaneously can also promote air chamber diaphragm 30's structural strength.

In addition, as shown in fig. 1 and 3, the lower case 14 is detachably coupled to the base 13. For example, a plurality of clamping portions 140 may be disposed on the outer peripheral side of the lower shell 14, such that the clamping portions 140 may be clamped on the base 13, thereby enabling the lower shell 14 and the base 13 to be fixedly connected, and the clamping portions 140 may be disposed at even intervals, so that when the clamping portions 140 are clamped on the base 13, the connection between the lower shell 14 and the base 13 may be more stable and firm.

As shown in fig. 2 and 3, the vehicle mount 1 further includes: a rubber ring 40, the rubber ring 40 being vulcanized onto the inner peripheral wall of the lower casing 14, and the rubber ring 40 being located below the decoupling assembly 20. The rubber ring 40 can be integrated with the lower casing 14 in a vulcanization mode, the rubber ring 40 is located below the decoupling assembly 20, and the rubber ring 40 can compensate for volume changes of the upper liquid chamber 111 and the lower liquid chamber 110 in the operation of the suspension 1 through elastic deformation, so that the hydraulic stability of the system of the suspension 1 is maintained. In addition, the rubber ring 40 can replace a leather cup structure of a traditional structure, so that the overall arrangement space of the suspension 1 is saved, and a good sealing effect is achieved.

Further, as shown in fig. 1 to 3, the suspension 1 of the vehicle further includes: and the vent pipe 50 is communicated with the air chamber cavity 112. A vent tube 50 is provided so that an air pump outside the suspension 1 can introduce air into the air chamber cavity 112 through the vent tube 50, or the air in the air chamber cavity 112 can be discharged through the vent tube 50, thereby changing the pressure in the air chamber cavity 112 and causing the state of the air chamber diaphragm 30 to change.

Optionally, as shown in fig. 2 and 3, the suspension 1 of the vehicle further comprises: and the suspension main body 10 is provided with a liquid injection hole 15 at a position corresponding to the decoupling assembly 20, and the liquid sealing bead 60 is sealed at the liquid injection hole 15. The liquid sealing bead 60 can play a role in sealing, a liquid injection hole 15 is formed in the position, corresponding to the decoupling assembly 20, of the suspension body 10, and the liquid sealing bead 60 is generally arranged in the liquid injection hole 15 to prevent liquid in the upper liquid chamber 111 and the lower liquid chamber 110 from leaking out through the liquid injection hole 15. Thus, the structure of the liquid sealing bead 60 and the liquid injection hole 15 is simple, the arrangement is simple, and the operation is convenient.

According to an alternative embodiment of the present invention, as shown in fig. 2 and 3, the decoupling assembly 20 comprises: the upper flow passage plate 22, the lower flow passage plate 23 and the decoupling film 24, wherein the upper flow passage plate 22 and the lower flow passage plate 23 are arranged oppositely up and down, the decoupling film 24 is arranged between the upper flow passage plate 22 and the lower flow passage plate 23, and the decoupling film 24, the upper flow passage plate 22 and the lower flow passage plate 23 form the inertia passage 21 together. That is, an upper liquid chamber 111 is formed between the upper end of the upper flow channel plate 22 and the air chamber diaphragm 30, a lower liquid chamber 110 is formed at the lower end of the lower flow channel plate 23, the liquid in the upper liquid chamber 111 and the lower liquid chamber 110 can flow through the upper flow channel plate 22 and the lower flow channel plate 23, the decoupling film 24 is disposed between the upper flow channel plate 22 and the lower flow channel plate 23, and the decoupling film 24 forms the inertia track 21 together with the upper flow channel plate 22 and the lower flow channel plate 23, which is reasonable and convenient for controlling the flow of the liquid in the upper liquid chamber 111 and the lower liquid chamber 110.

In addition, through changing damping fluid, namely the fluid in the upper fluid chamber 111 and the lower fluid chamber 110, changing the material and structure of the decoupling film 24, and changing the injection pressure of the damping fluid, different control accuracies can be achieved, the performance requirements of different vehicle types can be met, the platformization capability can be improved, and the research and development investment can be reduced.

According to the utility model discloses vehicle, include: the suspension 1 of the vehicle described in the above embodiment.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A suspension of a vehicle, comprising:

the suspension body (10), wherein a cavity (11) is formed in the suspension body (10);

the decoupling assembly (20) is arranged in the cavity (11), an inertia channel (21) is formed in the decoupling assembly (20), a lower liquid chamber (110) is formed in the part, below the decoupling assembly (20), of the cavity (11), and the lower liquid chamber (110) is communicated with the inertia channel (21);

the gas chamber diaphragm (30), the gas chamber diaphragm (30) set up in cavity (11) and be located the top of decoupling assembly (20), cavity (11) is in the part between gas chamber diaphragm (30) and decoupling assembly (20) forms upper liquid chamber (111), upper liquid chamber (111) with inertia passageway (21) are linked together, the part of cavity (11) above gas chamber diaphragm (30) forms gas chamber (112).

2. The suspension of a vehicle according to claim 1, characterized in that the suspension body (10) comprises: the air chamber decoupling device comprises a main spring (12), a base (13) and a lower shell (14), wherein the main spring (12), the base (13) and the lower shell (14) jointly define a cavity (11), an air chamber diaphragm (30) and a decoupling assembly (20) are arranged on the base (13), and the air chamber diaphragm (30) and the decoupling assembly (20) are arranged at a distance in the up-down direction.

3. The suspension of a vehicle according to claim 2, characterized in that the inner wall of the base (13) is provided with a stop rib (130) protruding inwards, the stop rib (130) being located above the decoupling assembly (20), the air chamber membrane (30) being provided on the stop rib (130).

4. The suspension of a vehicle according to claim 3, characterized in that the air chamber membrane (30) is glued to the restraining bead (130); or

The limiting rib (130) is provided with a clamping part, and the air chamber diaphragm (30) is clamped on the limiting rib (130); or

The air chamber diaphragm (30) is fixed on the limiting rib (130) through a fastener; or

The air chamber diaphragm (30) is connected to the limiting rib (130) in a vulcanization mode.

5. The vehicle suspension of claim 2, wherein the lower shell (14) is removably connected to the base (13).

6. The vehicle suspension of claim 2, further comprising: a rubber ring (40), the rubber ring (40) vulcanized on an inner peripheral wall of the lower casing (14) and located below the decoupling assembly (20).

7. The suspension of a vehicle of claim 1, further comprising: a vent tube (50), the vent tube (50) in communication with the air chamber cavity (112).

8. The suspension of a vehicle of claim 1, further comprising: the suspension body (10) is provided with a liquid injection hole (15) at a position corresponding to the decoupling component (20), and the liquid sealing bead (60) is sealed at the liquid injection hole (15).

9. The suspension of a vehicle according to claim 1, characterized in that said decoupling assembly (20) comprises: the device comprises an upper runner plate (22), a lower runner plate (23) and a decoupling film (24), wherein the upper runner plate (22) and the lower runner plate (23) are arranged oppositely up and down, and the decoupling film (24) is arranged between the upper runner plate (22) and the lower runner plate (23) and forms the inertial channel (21) together with the upper runner plate (22) and the lower runner plate (23).

10. A vehicle, characterized by comprising: a suspension of the vehicle of any one of claims 1-9.

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