CN218063182U - A powertrain mount and an electric vehicle - Google Patents

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

A powertrain mount and an electric vehicle

technical field

The utility model relates to the field of new energy vehicles, in particular to a power assembly mount and an electric vehicle.

Background technique

Since the automobile was produced, it has affected people's production and life style and brought great convenience to people. With the increasing status of industries such as big data, cloud computing, artificial intelligence, and the Internet of Things, and the automobile industry being affected by the technological revolution, new energy vehicles will become a major trend in the country's automobile development. When designing a suspension system suitable for electric motors, the following aspects need to be considered: First, according to the output characteristics of the electric motor, the starting torque of the electric motor is large, and high torque output can be produced at a low speed. impact problem.

The inventors found that for pure electric vehicles, the torque fluctuation of the motor is much lower than that of the engine, and mainly occurs in creeping, acceleration, deceleration and braking conditions, and its frequency has no obvious relationship with the rotation order of the engine. However, the torque of the motor is significantly greater than that of the engine, so the focus of the matching design of the electric vehicle powertrain mount is to resist the high torque of the powertrain and ensure that the displacement of the powertrain is within a reasonable range under the action of the high torque, thereby reducing the small vibrations.

Utility model content

The purpose of the utility model is to provide a powertrain mount and an electric vehicle, which can improve the reliability of the whole vehicle, reduce the impact on the driver's cab due to the torque change of the motor, and improve the comfort of the drivers and passengers Sex, has a good damping effect.

Embodiments of the utility model are achieved in that:

In the first aspect, the utility model provides a powertrain mount, which includes a mount frame and a cushion damping assembly, and the mount frame has a through hole for installation;

The cushion damping assembly includes a cushion outer tube, a cushion and a cushion inner tube; 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 The cushion is arranged in the outer tube of the cushion, a central hole is arranged in the middle of the cushion, and the inner tube of the cushion is arranged in the center hole.

In an optional embodiment, the cushion inner tube is in a strip structure.

In an optional embodiment, the middle part of the cushion inner tube is provided with a round hole penetrating along its length direction, and the round hole is used for connecting with the cross beam of the sub-frame.

In an optional embodiment, the outer tube of the cushion, the cushion and the inner tube of the cushion are integrally formed through a vulcanization process.

In an optional embodiment, the suspension frame also has a connecting hole, which is used for connecting with the powertrain of the vehicle.

In an optional embodiment, there are three connection holes in total, and the three connection holes surround an isosceles triangle area.

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

In an optional embodiment, the suspension frame is made of aluminum alloy A380.

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

In another aspect, an electric vehicle is provided, including the powertrain mount described in any one of the above items.

The beneficial effect of the embodiment of the utility model is that: the utility model is provided with a cushion damping assembly in the suspension frame, which is used to reduce the impact feeling on the driver's cab due to the torque change of the motor, and the cushion damping assembly includes a cushion The outer tube, the cushion and the inner tube of the cushion; the outer tube of the cushion is set in the suspension frame and directly contacts the hole wall of the installation through hole of the suspension frame, the cushion is sleeved in the outer tube of the cushion, and the middle part of the cushion is set There is a central hole, and the inner tube of the cushion is sleeved in the center hole, and the cushion has a good damping effect at the same time. Through the above structure, compared with the prior art, the vibration transmission between the power system and the frame system can be reduced, the service life of each system can be prolonged, the comfort of the driver of the vehicle can be improved, and the harm caused by vibration can be reduced. It can fully decouple the vibration in six directions, and fully reduce the transmission of vibration in all directions.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

Fig. 1 is a schematic diagram of a first viewing angle of a powertrain mount provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of a second viewing angle of the powertrain mount provided by the embodiment of the present invention.

icon:

100-suspension frame; 110-installation through hole; 120-connection hole; 200-cushion damping component; 210-soft cushion outer tube; 220-soft cushion; 221-central hole; Pad inner tube; 231 - circular hole.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the utility model is used. It is only for the convenience of describing the utility model and simplifying the description, rather than Any indication or implication that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that a component is absolutely level or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present utility model, it should also be noted that, unless otherwise specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Fig. 1 is a schematic diagram of a powertrain mount structure used in this embodiment, and Fig. 2 is an exploded exploded view of Fig. 1, and various structures are clearer and more specific.

As shown in Fig. 1-2, a powertrain suspension includes a suspension framework 100 and a soft cushion damping assembly 200, the suspension framework 100 has a through installation through hole 110, and the soft cushion damping assembly 200 is arranged on The through hole 110 is installed in the through hole 110, and its function is to slow down the impact on the driver's cab caused by the excessive motor torque of the electric vehicle, improve the comfort of the driver of the vehicle, and reduce the harm caused by vibration, and the cushion vibration damping assembly 200 can also Vibrations in multiple directions are decoupled.

The cushion damping assembly 200 includes a cushion outer tube 210, a cushion 220 and a cushion inner tube 230, the cushion outer tube 210 is arranged in the installation through hole 110 and is in direct contact with the hole wall of the installation through hole 110, and Cushion 220 is arranged in the cushion outer tube 210, and cushion 220 has flexibility, therefore has the effect of damping, is also provided with central hole 221 in the middle part of cushion 220, and cushion inner tube 230 matches with center hole 221 and Set in the central hole 221, the cushion inner tube 230 is a strip structure, and a round hole 231 penetrating along the length direction is set in the middle of the cushion inner tube 230, and this round hole 231 is used to pass the bolt and the sub-frame Beam connection.

Optionally, the suspension frame 100 in this embodiment is made of aluminum alloy A380, because it combines the characteristics of easy molding, easy machining, and good heat conduction. The mobility, pressure resistance, and high temperature split resistance are very strong, so from the perspective of production and effect, aluminum alloy A380 is an ideal material.

Optionally, in this embodiment, the cushion damping assembly 200 includes a cushion outer tube 210, a cushion 220 and a cushion inner tube 230. In order to achieve a more ideal effect, the cushion outer tube 210 in this embodiment is made of steel production, the cushion 220 is made of natural rubber material, and the inner tube 230 of the cushion is made of aluminum-magnesium-silicon alloy material. The size is small and the weight is light, and the space occupied is limited, which can meet the space requirements in the electric vehicle.

Specifically, the cushion outer tube 210, the cushion 220, and the cushion inner tube 230 are integrally formed through a vulcanization process. After vulcanization, the cushion 220 has the characteristics of not being sticky and not easy to break, and a three-dimensional space is formed in the raw rubber after vulcanization. Structure, with high elasticity, heat resistance, tensile strength and insolubility in organic solvents, etc. The integral molding of the vulcanization process further strengthens the vibration damping performance of this embodiment.

Of course, it can be understood that, according to different vehicle conditions, the stiffness and thickness of the cushion 220 can be adjusted to achieve the best effect for the entire power system.

In this embodiment, gaps distributed along the circumferential direction are provided between the outer wall of the soft pad 220 and the central hole 221. The setting of this gap is to provide sufficient space for deformation to absorb vibrations. A plurality of connecting ribs 222 are arranged between the outer wall of the outer wall of the soft pad and the central hole 221 of the soft pad 220 to connect. The plurality of connecting ribs 222 are distributed at intervals, and the connecting ribs 222 can effectively transmit vibration. Therefore, the cushion 220 adopts the above-mentioned structure, which can effectively attenuate the vibration.

Optionally, the suspension framework 100 in this embodiment is further provided with a connection hole 120, the connection hole 120 is provided on an arc-shaped side of the suspension framework 100, and the connection hole 120 is tangent to the arc surface. There are three connection holes 120 in total, and the three connection holes 120 surround an isosceles triangle area, and the three connection holes 120 are used to connect with the housing of the motor through bolts for fixing and vibration reduction.

This embodiment also provides an electric vehicle. The electric vehicle includes the above-mentioned powertrain mount, which can reduce the vibration transmission between the power system and the frame system compared with the prior art, prolong the service life of each system, and improve the Improve the comfort of the vehicle driver and reduce the harm caused by vibration. It can fully decouple the vibration in six directions, and fully reduce the transmission of vibration in all directions.

To sum up, it can be known from the description of the above embodiments that the utility model can improve the reliability of the whole vehicle while reducing the impact on the cab caused by the torque change of the motor and improving the comfort of the driver and passengers. Comfortable, with good vibration damping effect.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

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.

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