CN218063182U

CN218063182U - Power assembly suspension and electric automobile

Info

Publication number: CN218063182U
Application number: CN202222493928.0U
Authority: CN
Inventors: 刘福旺
Original assignee: Wuhu Jianfeng Automobile Technology Co ltd
Current assignee: Wuhu Jianfeng Automobile Technology Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2022-12-16
Anticipated expiration: 2032-09-20

Abstract

A power assembly suspension and an electric automobile relate to the field of new energy automobiles and comprise a suspension framework and a cushion vibration attenuation component, wherein the suspension framework is provided with a through mounting through hole, and the cushion vibration attenuation component is arranged in the mounting through hole; the cushion vibration reduction assembly comprises an outer cushion pipe, a cushion and an inner cushion pipe; the cushion outer pipe is arranged in the installation through hole and is in direct contact with the hole wall of the installation through hole, and the cushion is sleeved in the cushion outer pipe; the middle part of the cushion is provided with a central hole, and the inner pipe of the cushion is sleeved in the central hole. The utility model discloses when can promote whole car reliability, reduced because of the impact sense that the moment of torsion change of motor produced the driver's cabin, improved driver and crew's travelling comfort, fine damping effect has.

Description

Power assembly suspension and electric automobile

Technical Field

The utility model relates to a new energy automobile field particularly, relates to a power assembly suspension and electric automobile.

Background

Since the automobile is produced, the production and living modes of people are influenced, and great convenience is brought to people. With the increasing position of industries such as big data, cloud computing, artificial intelligence, internet of things and the like, the automobile industry is influenced by the technological revolution, and new energy automobiles become a great trend of national automobile development. In designing a suspension system for an electric machine, the following aspects need to be considered: firstly, according to the output characteristics of the motor, the starting torque of the motor is large, high torque output can be generated at low rotating speed, and the impact problem of the vehicle can be caused by severe torque change when the electric vehicle is started.

The inventor researches and discovers that for the pure electric vehicle, the torque fluctuation of the motor is far lower than that of the engine, the torque fluctuation mainly occurs in the creep, acceleration, deceleration and braking conditions, and the frequency of the torque fluctuation is not obviously related to the rotation order of the engine. However, the torque of the motor is obviously larger than that of the engine, so the aim of the suspension matching design of the power assembly of the electric automobile is to resist the large torque of the power assembly, ensure the displacement of the power assembly to be in a reasonable range under the action of the large torque, and further reduce the vibration.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power assembly suspension and electric automobile, when it can promote whole car reliability, reduced because of the change of torque of motor is felt the impact that the driver and crew's travelling comfort has been improved to the driver's cabin production, has fine damping effect.

The embodiment of the utility model is realized like this:

in a first aspect, the utility model provides a power assembly suspension, which comprises a suspension framework and a cushion damping component, wherein the suspension framework is provided with a through mounting through hole;

the cushion vibration reduction assembly comprises an outer cushion pipe, a cushion and an inner cushion pipe; the cushion outer tube sets up in the installation through-hole and with the pore wall direct contact of installation through-hole, the cushion sets up in the cushion outer tube, the cushion middle part is provided with the centre bore, the cushion inner tube sets up in the centre bore.

In an alternative embodiment, the cushion innerduct is a strip-like structure.

In an optional embodiment, a round hole penetrating along the length direction of the cushion inner tube is formed in the middle of the cushion inner tube, and the round hole is used for being connected with the auxiliary frame cross beam.

In an alternative embodiment, the outer cushion tube, the inner cushion tube and the outer cushion tube are integrally formed by a vulcanization process.

In an alternative embodiment, the suspension framework is further provided with a connecting hole, and the connecting hole is used for being connected with a power assembly of a vehicle.

In an optional embodiment, the number of the connecting holes is three, and the three connecting holes enclose an isosceles triangle area.

In an optional embodiment, one side surface of the suspension framework is an arc surface, and all three connecting holes are tangent to the arc surface.

In an alternative embodiment, the suspension framework is made of an aluminum alloy A380 material.

In an alternative embodiment, the cushion outer tube, the cushion inner tube and the cushion outer tube are made of steel, natural rubber and aluminum-magnesium-silicon alloy materials in sequence.

In another aspect, there is provided an electric vehicle comprising a powertrain mount of any of the above.

The embodiment of the utility model provides a beneficial effect is: the utility model is provided with a cushion damping component in the suspension framework for reducing the impact feeling to the cab caused by the torque change of the motor, and the cushion damping component comprises a cushion outer tube, a cushion and a cushion inner tube; the cushion outer tube sets up in the suspension skeleton and with the pore wall direct contact of the installation through-hole of suspension skeleton, the cushion cup joints in the cushion outer tube, and the cushion middle part is provided with the centre bore, and the cushion inner tube cup joints in the centre bore, and the cushion adopts simultaneously to have fine damping effect. Through above-mentioned structure, compare in prior art and can reduce the vibration transmission between driving system and the frame system, prolong each system life, improve vehicle driver's travelling comfort, reduce the harm that the vibration produced. The vibration in six directions can be fully decoupled, and the transmission of the vibration in all directions is fully reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a power train suspension according to an embodiment of the present invention at a first viewing angle;

fig. 2 is a schematic view of a second viewing angle of the powertrain mount according to an embodiment of the present invention.

Icon:

100-a suspension skeleton; 110-mounting through holes; 120-connecting hole; 200-cushion dampening assembly; 210-cushion outer tube; 220-cushion; 221-a central hole; 222-connecting ribs; 230-cushion inner tube; 231-circular hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Fig. 1 is a schematic diagram of a power assembly suspension structure adopted in the present embodiment, and fig. 2 is an exploded view of fig. 1, in which various structures are more clearly detailed.

As shown in fig. 1-2, a powertrain mount includes a mount frame 100 and a cushion damping assembly 200, the mount frame 100 has a through-hole 110, the cushion damping assembly 200 is disposed in the through-hole 110, and the cushion damping assembly 200 is used for alleviating the impact of the excessive torque of the motor of the electric vehicle on the cab, improving the comfort of the driver of the vehicle, reducing the damage caused by vibration, and decoupling the cushion damping assembly 200 from the vibration in multiple directions.

Cushion damping subassembly 200 includes cushion outer tube 210, cushion 220 and cushion inner tube 230, cushion outer tube 210 sets up in installation through-hole 110 and with the pore wall direct contact of installation through-hole 110, and cushion 220 sets up in cushion outer tube 210, cushion 220 has the flexibility, consequently, the effect of damping has, still be provided with center hole 221 at the middle part of cushion 220, cushion inner tube 230 matches and sets up in center hole 221 with center hole 221, cushion inner tube 230 is the strip structure, and be provided with the round hole 231 that runs through along length direction at the middle part of cushion inner tube 230, and this round hole 231 is used for being connected with sub vehicle frame crossbeam through the bolt.

Optionally, the suspension skeleton 100 in this embodiment is made of an aluminum alloy a380 material, because it integrates the characteristics of easy molding, convenient machining, good heat conduction, and the like. The deformability, bearing capacity, and resistance to high temperature cracking are all strong, so aluminum alloy a380 is an ideal material from the viewpoint of production and effect.

Optionally, in this embodiment, the cushion vibration damping module 200 includes the cushion outer tube 210, the cushion 220 and the cushion inner tube 230, in order to reach more ideal effect, the cushion outer tube 210 is made of steel material in this embodiment, the cushion 220 is made of natural rubber material, the cushion inner tube 230 is made of aluminum-magnesium-silicon alloy material, the aluminum-magnesium-silicon alloy material is strong in independent bearing firmness, the vibration resistance can be improved, the cushion vibration damping module 200 is small in size and light in weight on the whole, and the occupied space is limited, and the space requirement in the electric vehicle can be met.

Specifically, the outer cushion tube 210, the inner cushion tube 220 and the inner cushion tube 230 are integrally formed through a vulcanization process, the vulcanized outer cushion tube 220 has the characteristics of no stickiness, difficulty in breaking and the like, a space three-dimensional structure is formed in the raw rubber after vulcanization, and the rubber has high elasticity, heat resistance, tensile strength, insolubility in an organic solvent and the like. The vulcanization process is integrally formed, so that the vibration damping performance of the embodiment is further enhanced.

Of course, it will be appreciated that the stiffness and thickness of cushion 220 may be adjusted for different vehicle conditions, and adjusted for the entire powertrain system to achieve optimal results.

In this embodiment, be provided with the clearance that distributes along circumference between the outer wall of cushion 220 and central hole 221, the setting in this kind of clearance is for deformation provides abundant space, absorb the vibration, be provided with many splice bars 222 between the outer wall of cushion 220 and the central hole 221 of cushion 220 simultaneously and connect, splice bar 222 is the strip structure, the width increases after reducing earlier from the outer wall of cushion 220 to central hole 221, many splice bars 222 interval distribution of cushion 220, splice bar 222 can effectual transmission vibration. Therefore, the cushion 220 with the above structure can effectively damp the vibration.

Optionally, the suspension skeleton 100 of this embodiment is further provided with a connection hole 120, the connection hole 120 is disposed on one arc-shaped side surface of the suspension skeleton 100, and the connection hole 120 is tangent to the arc surface. The number of the connecting holes 120 is three, and the three connecting holes 120 enclose an isosceles triangle area, and the three connecting holes 120 are used for being connected with the casing of the motor through bolts to fix and reduce vibration.

This embodiment still provides an electric automobile, and electric automobile includes foretell powertrain suspension, compares in prior art and can reduce the vibration transmission between driving system and the frame system, prolongs each system life, improves vehicle driver's travelling comfort, reduces the harm that the vibration produced. The vibration in six directions can be fully decoupled, and the transmission of vibration in all directions is fully reduced.

To sum up, can learn from the description of above embodiment, the utility model discloses when it can promote whole car reliability, reduced because of the change of torque of motor is felt the impact that the driver and crew's travelling comfort has been improved to the driver's cabin production, has fine damping effect.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A power assembly suspension is characterized by comprising a suspension framework and a cushion vibration damping assembly, wherein the suspension framework is provided with a through mounting through hole;

the cushion vibration reduction assembly comprises an outer cushion pipe, a cushion and an inner cushion pipe; the cushion outer tube is arranged in the installation through hole and is in direct contact with the hole wall of the installation through hole, the cushion is arranged in the cushion outer tube, a central hole is formed in the middle of the cushion, and the cushion inner tube is arranged in the central hole.

2. The powertrain mount of claim 1, wherein the cushion innerduct is a strip-like structure.

3. The powertrain mount of claim 1, wherein the cushion inner tube has a circular hole extending through the middle portion thereof in a length direction thereof, and the circular hole is adapted to be connected to a cross member of the subframe.

4. The powertrain mount of claim 1, wherein the outer cushion tube, the inner cushion tube and the outer cushion tube are integrally formed by a vulcanization process.

5. The powertrain mount of claim 1, wherein the suspension frame further comprises an attachment hole for attachment to a powertrain of a vehicle.

6. The powertrain mount of claim 5, wherein a total of three of the attachment apertures are provided, the three attachment apertures enclosing an isosceles triangle area.

7. The powertrain mount of claim 6, wherein one side of the mount frame is a curved surface, and wherein all three of the attachment holes are tangent to the curved surface.

8. The locomotion assembly suspension of claim 1, wherein the suspension skeleton is made of an aluminum alloy A380 material.

9. The powertrain mount of claim 1, wherein the outer cushion tube, the inner cushion tube and the outer cushion tube are made of steel, natural rubber and aluminum-magnesium-silicon alloy materials in sequence.

10. An electric vehicle comprising a powertrain mount of any one of claims 1 to 9.