CN211893478U

CN211893478U - Damping device of electric vehicle

Info

Publication number: CN211893478U
Application number: CN202020565510.4U
Authority: CN
Inventors: 李文; 李杨; 时培杰
Original assignee: Feidong Kelly Electronic Technology Co ltd
Current assignee: Feidong Kelly Electronic Technology Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-11-10
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses an electric motor car damping device, include cushion, electric motor car body and set up in the damping device of cushion below, damping device includes upper junction plate, shock attenuation spherical crown, cushion socket and lower connecting plate in proper order, the upper junction plate top surface is equipped with circular recess, and the recess bottom is the plane, and the cushion is half to be embedded in this recess, is equipped with the plane friction between upper junction plate bottom surface and the shock attenuation spherical crown top surface vice, and shock attenuation spherical crown bottom surface is convex spherical surface, and the cushion socket top surface is the concave spherical surface that matches with convex spherical surface, and shock attenuation spherical crown bottom surface is equipped with the spherical friction pair with the cushion socket top surface, and the cushion socket bottom surface is equipped with a circle of groove with the flange, and the inslot is embedded there is the rubber slab, has the backing plate of partly inlaying below the rubber slab in with the cushion socket groove, backing plate bottom surface and. The utility model discloses can realize multi-direction shock-absorbing function, improve and drive the travelling comfort, still improve damping device's life simultaneously.

Description

Damping device of electric vehicle

Technical Field

The utility model relates to an electric motor car shock attenuation technical field, concretely relates to electric motor car damping device.

Background

Electric vehicles, namely electric drive vehicles, are also known as electric drive vehicles. Electric vehicles are classified into alternating current electric vehicles and direct current electric vehicles. Generally, an electric vehicle is a vehicle that uses a battery as an energy source, and converts electric energy into mechanical energy through a controller, a motor and other components to move so as to control the current and change the speed. Electric vehicles do not account for a high share of the national economy. But it accords with the national energy-saving and environment-friendly trend, greatly facilitates short-distance traffic, and plays an important role in national economy mainly through saving and protecting energy and environment.

The consumption scale of the electric vehicle in 2011 is about 400 million yuan, the consumption scale of the electric vehicle in 2012 is about 450 million yuan, the consumption scale of the electric vehicle in 2013 is about 484 million yuan, and the consumption of the electric vehicle in 2014 is about 528 million yuan. Electric vehicles have been developed in china for decades as a green sunward industry. In terms of electric bicycles, electric bicycles in china have reached 1.2 million by 2010 and have grown at 30% of the annual rate. Therefore, the electric bicycle is favored by the city with low income level due to the functional advantages of low price, convenience and environmental protection.

In view of the increasing number of users, comfort is required more and more. In order to improve the travelling comfort when using among the prior art, set up damping device in the stool below, but current damping device is because long-term use leads to the shock attenuation effect more and more weak, generally can only cushion the shock attenuation to vertical direction atress, when walking on the way of some frustrations, the external force of a plurality of directions that ground transmitted leans on vertical shock attenuation completely can not guarantee to drive in good comfort level.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric motor car damping device for realize the multidirectional shock-absorbing effect of buffering of electric motor car cushion, improve the comfort level in driving, improve damping device's life simultaneously.

In order to solve the technical problem, the utility model discloses a following scheme:

the utility model provides an electric motor car damping device, includes cushion, electric motor car body and sets up in the damping device of cushion below, damping device includes upper junction plate, shock attenuation spherical cap, shock attenuation seat and lower connecting plate in proper order, the upper junction plate top surface is equipped with circular recess, is the plane at the bottom of the recess, and the cushion is half to be embedded in this recess, is equipped with the plane friction between upper junction plate bottom surface and the shock attenuation spherical cap top surface vice, and shock attenuation spherical cap bottom surface is convex spherical surface, and the shock attenuation seat top surface is the concave spherical surface that matches with convex spherical surface, and shock attenuation spherical cap bottom surface and shock attenuation seat top surface are equipped with the sphere friction pair, and the shock attenuation seat bottom surface is equipped with a circle of groove of taking the flange, and the inslot is embedded to have the rubber slab, has the backing plate of half embedding below the rubber slab with in.

By adopting the technical scheme, when the electric vehicle runs on a bumpy road, the electric vehicle body vibrates in multiple directions due to the fact that the tire runs on an uneven road, the stress condition is fed back to the cushion, the upper connecting plate and the damping spherical crown can slide horizontally due to the plane friction pair between the upper connecting plate and the damping spherical crown and are used for consuming vibration in the horizontal direction, the damping spherical crown and the damping seat can rotate oppositely through the spherical friction pair and are used for consuming longitudinal vibration, the cushion and the electric vehicle body are well separated, most of the bumpy stress from the road cannot be transmitted to the cushion from the electric vehicle body, the vibration period is prolonged through the friction energy consumption principle, the amplification effect of the cushion caused by the external force action is reduced, the perception of a driver on the vibration is reduced, and the uneven compression deformation of the rubber plate is utilized, thereby improved driver's comfort level, this damping device need not to buffer the power consumption through continuous compression extension through elastic material such as spring, does not have deformation, only reaches the cushioning effect through the friction power consumption, has improved damping device's life greatly, and the shock attenuation effect can keep good state for a long time.

Further, as preferred, be equipped with a plurality of solid fixed rings that correspond each other between upper junction plate bottom surface edge and the lower junction plate top surface edge, be connected with the elasticity rope between the solid fixed ring that is opposite from top to bottom.

Due to the adoption of the technical scheme, the plurality of fixing rings are fixedly installed at the edge positions of the upper connecting plate and the lower connecting plate in an annular mode, the fixing rings corresponding from top to bottom are connected with the elastic rope in a binding mode, the elastic rope is used for limiting the rotating range between the damping spherical crown and the damping seat, the vibration is prevented from being overlarge, the damping spherical crown slides out of the concave spherical surface, the cushion drops, and therefore potential safety hazards are caused to drivers.

Further, as preferred, the plane friction pair comprises a plane polytetrafluoroethylene plate and a plane stainless steel plate, the plane polytetrafluoroethylene plate is partially embedded into the bottom surface of the upper connecting plate, the plane stainless steel plate is located on the bottom surface of the plane polytetrafluoroethylene plate, and the plane stainless steel plate is welded with the top surface of the damping spherical cap.

Due to the adoption of the technical scheme, the polytetrafluoroethylene material has good mechanical property, the friction coefficient is the lowest of high polymer materials, the matched stainless steel plate with the same low friction coefficient has very smooth relative sliding between the polytetrafluoroethylene material and the high polymer materials, the horizontal vibration force can be well buffered through plane sliding between the plane polytetrafluoroethylene plate and the plane stainless steel plate, the polytetrafluoroethylene plate and the plane stainless steel plate have very strong wear resistance, corrosion resistance and ageing resistance, the service life of the damping device can be prolonged, and in the long-term friction process, the damping device is not easy to wear, and the damping effect can be continuously maintained.

Further, as preferred, the spherical friction pair includes sphere polytetrafluoroethylene board and sphere corrosion resistant plate, sphere polytetrafluoroethylene board matches with convex sphere and partial embedding convex sphere bottom surface, and sphere corrosion resistant plate is located sphere polytetrafluoroethylene board bottom surface, and sphere corrosion resistant plate welds in the concave sphere of shock mount.

Owing to adopt above-mentioned technical scheme, polytetrafluoroethylene material has good mechanical properties, coefficient of friction is the lowest among the macromolecular material, the stainless steel plate that coefficient of friction is the same low is cooperated, relative rotation between sphere polytetrafluoroethylene board and the sphere stainless steel plate is very smooth and easy, can be fine buffer the vertical damping force of water through sphere rotation, the two has very strong wearability, corrosion resistance, ageing resistance simultaneously, can improve damping device's life, in long-term friction process, difficult wearing and tearing, the shock attenuation effect can continuously keep.

Further, as preferred, the cushion is the hemisphere type, and the inside sponge that fills of cushion can increase the lifting surface area of driver's buttock, and the packing of sponge further improves driver's comfort level of taking.

The utility model discloses beneficial effect who has:

1. horizontal friction energy dissipation through upper junction plate and shock attenuation spherical crown top surface slows down the vibrating force of horizontal direction, the rotation friction energy dissipation of the sphere of shock attenuation spherical crown bottom surface and shock attenuation seat top surface slows down vertical vibrating force, realizes the multidirectional absorbing effect of cushion, has improved the comfort level of driving, and damping device need not to come the shock attenuation through deformation such as compression recovery for this damping device's life obtains the extension.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Reference numerals: 1-cushion, 2-upper connecting plate, 3-damping spherical crown, 4-damping seat, 5-lower connecting plate, 6-plane polytetrafluoroethylene plate, 7-plane stainless steel plate, 8-spherical polytetrafluoroethylene plate, 9-spherical stainless steel plate, 10-rubber plate, 11-backing plate, 12-fixing ring, 13-elastic rope and 14-electric vehicle body.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", 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 the terms are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "mounted," "connected," and "connected" are to be construed broadly, e.g., as either a fixed connection, a detachable 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 in specific cases to those skilled in the art.

Example 1

A damping device of an electric vehicle comprises a cushion 1, an electric vehicle body 12 and a damping device arranged below the cushion 1, the damping device comprises an upper connecting plate 2, a damping spherical crown 3, a damping seat 4 and a lower connecting plate 5 in sequence, the top surface of the upper connecting plate 2 is provided with a circular groove, the bottom of the groove is a plane, the cushion 1 is embedded in the groove in half, be equipped with the plane friction between 2 bottom surfaces of upper junction plate and 3 top surfaces of shock attenuation spherical crown vice, the 3 bottom surfaces convex spherical surfaces of shock attenuation spherical crown, 4 top surfaces of shock attenuation seat are the concave spherical surface that matches with convex spherical surface, 3 bottom surfaces of shock attenuation spherical crown and 4 top surfaces of shock attenuation seat are equipped with the spherical friction vice, 4 bottom surfaces of shock attenuation seat are equipped with a circle of groove of taking the flange, the inslot is embedded there is rubber slab 10, have half below the rubber slab 10 inlay solid with the backing plate 11 in 4 grooves of shock attenuation seat, backing plate 11 bottom surfaces and the welding of 5 top surfaces of lower connecting plate, 5 bottom surfaces of lower connecting plate are connected with this.

Specifically, as shown in fig. 1, the utility model comprises a cushion 1, an electric vehicle body 14 and a damping device arranged below the cushion 1, wherein the damping device comprises an upper connecting plate 2, a damping spherical crown 3, a damping seat 4 and a lower connecting plate 5 in sequence, the bottom surface of the lower connecting plate 5 is connected with the electric vehicle body 14 through a bolt, the top surface of the upper connecting plate 2 is provided with a circular groove, the bottom of the groove is a plane, the cushion 1 is half embedded in the groove, the groove can prevent the cushion 1 from sliding down on the upper connecting plate 2, the contact surface of the cushion 1 and the upper connecting plate 2 is bonded by a specific adhesive, so that the connection is firm, the cushion 1 is of a hemispherical shape, the cushion 1 is filled with a sponge body, the hemispherical cushion 1 can increase the stress area of the buttocks of a driver, the filling of the sponge body can preliminarily improve the riding comfort level of the driver, a plane friction pair, when the electric vehicle runs on a bumpy road, the electric vehicle body 14 generates multidirectional vibration due to the fact that tires run on an uneven road, the stress condition is fed back to the cushion 1, the upper connecting plate 2 and the top surface of the damping spherical crown 3 can horizontally slide due to the plane friction pair between the upper connecting plate 2 and the damping spherical crown 3 and is used for consuming vibration in the horizontal direction, the bottom surface of the damping spherical crown 3 is a convex spherical surface, the top surface of the damping seat 4 is a concave spherical surface matched with the convex spherical surface, the bottom surface of the damping spherical crown 3 and the top surface of the damping seat 4 are provided with spherical friction pairs, the damping spherical crown 3 and the damping seat 4 can rotate oppositely through the spherical friction pairs and are used for consuming longitudinal vibration, the two friction pairs are arranged, the cushion 1 and the electric vehicle body 14 are well separated, and most of bumping stress from the road surface cannot be transmitted to the cushion 1 from the electric vehicle body 14, the principle of dissipating energy through friction is to prolong the vibration cycle, reduce the enlarged effect that cushion 1 arouses because of exogenic action, the perception degree of driver to the vibration has been reduced, cushion 4 bottom surface is equipped with a circle of flanged groove, it has rubber slab 10 to embed in the groove, there is half below the rubber slab 10 to inlay solid with cushion 4 backing plate 11 in the groove, utilize the inhomogeneous compression deformation of rubber slab 10, the comfort level of driver has further been improved, this damping device need not to cushion the power consumption through continuous compression extension through elastic material such as spring, there is not deformation, only reach the cushioning effect through the friction power consumption, damping device's life has been improved greatly, the shock attenuation effect can keep good condition for a long time.

Example 2

On the basis of the above embodiment, a plurality of fixing rings 12 are correspondingly arranged between the bottom edge of the upper connecting plate 2 and the top edge of the lower connecting plate 5, and elastic ropes 13 are connected between the fixing rings 12 which are opposite up and down.

Specifically, as shown in fig. 1, at a plurality of solid fixed rings 12 of the edge position annular fixed mounting of upper junction plate 2 and lower junction plate 5, be connected with elasticity rope 13 through the ligature mode between the solid fixed ring 12 that corresponds from top to bottom, elasticity rope 13 is used for taking place the pivoted scope between restriction shock attenuation spherical crown 3 and the shock attenuation seat 4, prevents to vibrate too big, and 3 roll-off concave spherical surfaces of shock attenuation spherical crown cause cushion 1 to drop to cause the potential safety hazard to the driver.

Example 3

As shown in figure 1, the plane friction pair comprises a plane polytetrafluoroethylene plate 6 and a plane stainless steel plate 7, wherein the plane polytetrafluoroethylene plate 6 is partially embedded into the bottom surface of the upper connecting plate 2, the plane stainless steel plate 7 is positioned on the bottom surface of the plane polytetrafluoroethylene plate 6, and the plane stainless steel plate 7 is welded with the top surface of the damping spherical cap 3.

Specifically, polytetrafluoroethylene material has good mechanical properties, coefficient of friction is the lowest among the macromolecular material, the stainless steel board that coefficient of friction is the same low is cooperated, relative slip between the two is very smooth and easy, can be fine between plane polytetrafluoroethylene board 6 and the plane stainless steel board 7 buffer horizontal vibration power through plane slip, the two has very strong wearability simultaneously, corrosion resistance, ageing resistance, can improve damping device's life, in long-term friction process, difficult wearing and tearing, the shock attenuation effect can continuously keep.

The spherical friction pair comprises a spherical polytetrafluoroethylene plate 8 and a spherical stainless steel plate 9, the spherical polytetrafluoroethylene plate 8 is matched with the convex spherical surface, and part of the spherical polytetrafluoroethylene plate is embedded into the bottom surface of the convex spherical surface, the spherical stainless steel plate 9 is positioned on the bottom surface of the spherical polytetrafluoroethylene plate 8, and the spherical stainless steel plate 9 is welded in the concave spherical surface of the shock-absorbing seat 4.

Specifically, polytetrafluoroethylene material has good mechanical properties, coefficient of friction is the lowest among the macromolecular material, the stainless steel plate that coefficient of friction is the same low is cooperated, relative rotation between sphere polytetrafluoroethylene board 8 and the sphere stainless steel plate 9 is very smooth and easy, can be fine rotate through the sphere and come the vertical damping force of buffering water, the two has very strong wearability simultaneously, corrosion resistance, ageing resistance, can improve damping device's life, in long-term friction process, difficult wearing and tearing, the shock attenuation effect can continuously keep.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.

Claims

1. A damping device of an electric vehicle comprises a cushion (1), an electric vehicle body (14) and a damping device arranged below the cushion (1), and is characterized in that the damping device sequentially comprises an upper connecting plate (2), a damping spherical crown (3), a damping seat (4) and a lower connecting plate (5), the top surface of the upper connecting plate (2) is provided with a circular groove, the bottom of the groove is a plane, the cushion (1) is half embedded in the groove, a plane friction pair is arranged between the bottom surface of the upper connecting plate (2) and the top surface of the damping spherical crown (3), the bottom surface of the damping spherical crown (3) is a convex spherical surface, the top surface of the damping seat (4) is a concave spherical surface matched with the convex spherical surface, the bottom surface of the damping spherical crown (3) and the top surface of the damping seat (4) are provided with a circle of groove with a flange, a rubber plate (10) is embedded in the groove, a cushion plate (11) which is half embedded in the groove of the damping seat (4) is arranged below the, the bottom surface of the backing plate (11) is welded with the top surface of the lower connecting plate (5), and the bottom surface of the lower connecting plate (5) is connected with the electric vehicle body (14).

2. The damping device for the electric vehicle as claimed in claim 1, wherein a plurality of fixing rings (12) are correspondingly arranged between the bottom edge of the upper connecting plate (2) and the top edge of the lower connecting plate (5), and an elastic rope (13) is connected between the fixing rings (12) which are opposite up and down.

3. The damping device for the electric vehicle as claimed in claim 1, wherein the plane friction pair comprises a plane polytetrafluoroethylene plate (6) and a plane stainless steel plate (7), the plane polytetrafluoroethylene plate (6) is partially embedded in the bottom surface of the upper connecting plate (2), the plane stainless steel plate (7) is located on the bottom surface of the plane polytetrafluoroethylene plate (6), and the plane stainless steel plate (7) is welded with the top surface of the damping spherical cap (3).

4. The damping device for the electric vehicle as claimed in claim 1, wherein the spherical friction pair comprises a spherical polytetrafluoroethylene plate (8) and a spherical stainless steel plate (9), the spherical polytetrafluoroethylene plate (8) is matched with the convex spherical surface and is partially embedded into the bottom surface of the convex spherical surface, the spherical stainless steel plate (9) is located on the bottom surface of the spherical polytetrafluoroethylene plate (8), and the spherical stainless steel plate (9) is welded in the concave spherical surface of the damping seat (4).

5. The damping device for the electric vehicle as claimed in claim 1, wherein the cushion (1) is hemispherical, and the inside of the cushion (1) is filled with a sponge body.