TW201836874A - Shock absorbing structure of electric vehicle assembled with a steering system and including a steering assembly and an axle assembly that includes an elastic body and a pressing membe - Google Patents

Abstract

This invention provides a shock absorbing structure of an electric vehicle, which is assembled with a steering system. The steering system includes a steering shaft and two wheels coupled with the steering shaft. The shock absorbing structure of the electric vehicle includes a steering assembly and an axle assembly. The steering assembly includes a shaft sleeve, a steering connection portion connected with the shaft sleeve, and an accommodating space. The axle assembly includes a body, two axle connectors disposed at two ends of the body, a body through hole penetrating through the body, an elastic body disposed between the body and the shaft sleeve, and a pressing member passing through the body through hole, wherein when the elastic body is in a stretched state, the pressing member abuts against one end of the body corresponding to the shaft sleeve, and when the elastic body is in a compressed state, the pressing member moves away from the shaft sleeve.

Description

Suspension structure of electric vehicle

The invention relates to a suspension structure for an electric vehicle, in particular to a suspension structure of an electric vehicle which can be realized at low cost.

In many developing countries, their social structure is aging in the next year, and the elderly are often plagued by physical factors such as functional aging or disease. Therefore, in order to enable the silver-haired people to move freely, many electric scooters have come out, and with the design of barrier-free spaces, the quality of life of the elderly has been improved, and the burden on caregivers has been reduced. In addition, electric scooters can also assist people with physical disabilities.

The utility model relates to a utility model, such as the patent No. M374415, which mainly discloses an electric vehicle suspension structure, which mainly comprises a frame connecting a small front wheel, a large front wheel and a small rear wheel, the frame and the frame The small front wheels are connected by a connecting bracket, a shock absorber and a front movable arm. When the small front wheel and the small rear wheel pass through the bumpy road surface, the shock absorber effect can be achieved through each of the shock absorbers to improve the ride comfort. However, this type of suspension structure is quite complicated, and there is a risk of reducing the structural strength due to the large number of connection nodes. Therefore, how to improve the lack of prior technology is indeed an issue that the industry wants to overcome.

The object of the present invention is to solve the problems of complicated structure, high cost and insufficient strength of the conventional shock absorber.

In order to achieve the above object, the present invention provides a suspension structure for an electric vehicle, which is assembled with a steering system, the steering system includes a steering shaft, and two wheels coupled with the steering shaft, the electric vehicle The suspension structure includes a steering assembly and an axle assembly. The steering assembly includes a sleeve pivotally coupled to the steering shaft, a steering connection portion connecting the sleeve and interlocking with the steering shaft, and an accommodation space recessed from the steering connection portion. The axle assembly includes a body disposed in the accommodating space, and is disposed at two ends of the body and respectively connected to each of the wheel axle connecting members, and a through hole of the body of the body is disposed on the body and the bushing An elastic body, and a pressing member that is perforated through the body and movably connects the body and the steering joint, wherein when the elastic body is in a relaxed state, the pressing member abuts against the body corresponding to the sleeve At one end, when the elastic body is in a compressed state, the pressing member moves away from the sleeve, and the elastic body will provide an elastic force to eliminate the vibration damping amplitude.

Further, the steering connection portion includes a top plate adjacent to the sleeve, two side plates respectively connecting opposite ends of the top plate and extending away from the sleeve, and a side plate perforation extending through each of the side plates.

Further, the pressing member comprises a screw that perforates one of the side plates through the side plate, and a nut that combines the screw from the other side plate.

Further, the body perforation has a long side extending away from the sleeve direction, and a short side of each of the two sides of the wheel, the side plate perforation being slidable along the long side and corresponding to the body perforation.

Further, the steering assembly includes two balance bars respectively connected from the sleeve to opposite ends of the steering connection portion, and the elastic body is correspondingly disposed at an extended position of each of the balance bars, and the elastic body is correspondingly disposed on The extended position of each of the balanced poles.

Further, the elastomer is a spring.

Therefore, the present invention has the following beneficial effects over the prior art:

1. The invention utilizes a spring to hold the top plate of the steering connection portion, and a combination of the difference in the size of the perforation of the body and the perforation of the side plate can provide a buffering effect by the elastic body when subjected to vertical oscillation, and then the activity of the pressing member in the hole The shock-absorbing structure is formed to absorb the shock amplitude effect when driving, and the prior art shock absorber can be improved in cost, complicated structure and lack of strength.

For a more detailed description of the technical features and operation modes of the present application, and with reference to the illustrations, please refer to the review. In addition, the present invention is not intended to limit the scope of the invention as claimed.

With regard to the technology of the present invention, please refer to FIG. 1 to FIG. 2 , the present invention provides a suspension structure 100 for an electric vehicle, which is assembled with a steering system 300, and the steering system 300 includes a steering shaft 310. And a wheel 320 coupled to the steering shaft 310. The suspension structure 100 of the electric vehicle includes a steering assembly 10 and an axle assembly 20. In this embodiment, the steering system 300 may additionally include the necessary structure required for the operation of the electric scooter such as a suspension system (not shown), but this portion is equivalent to the general knowledge of the technical field to which the present invention pertains. The technology of Xi is not detailed here.

The steering assembly 10 includes a sleeve 11 pivotally connected to the steering shaft 310, a steering connection portion 12 connected to the sleeve 11 and coupled to the steering shaft 310, and a receiving space recessed from the steering connection portion 12. 13. In the present invention, when the user manipulates the steering shaft 310 to rotate, the sleeve 11 can be interlocked at the same time to change the traveling direction of the scooter.

The axle assembly 20 includes a body 21 disposed on the accommodating space 13 , and two ends of the body 21 and respectively connected to the axle connector 22 of each of the wheels 320 , and a through hole 23 extending through the body 21 . An elastic body 24 disposed between the body 21 and the sleeve 11 and a pressing member 25 passing through the body through hole 23 and movably connecting the body 21 and the steering connection portion 12. In this embodiment, the elastic body 24 may be an object having a springback property such as a spring or a polyurethane. The pressing member 25 can be a combination of a screw and a nut. In this embodiment, the axle connector 22 includes a top plate 121 adjacent to the sleeve 11, and two side plates 122 respectively connected to opposite ends of the top plate 121 and extending away from the sleeve 11, and a through-hole The side plate perforations 123 of the side plates 122 are such that the steering connection portion 12 is circumferentially positioned by each of the side plates 122. In addition, the body through hole 23 has a long side extending away from the sleeve 11 and a short side of each of the two sides of the wheel 320. The side plate through hole 123 is slidable along the long side and the position corresponds to the body through hole. twenty three.

The principle of action of the suspension function of the present invention will be described below. Referring to FIG. 3, when the elastic body 24 is in a relaxed state, the top plate 121 is supported toward the upper side of the figure, and the pressing member 25 is abutted against the body 21 corresponding to one end of the sleeve 11. In the invention, the elastic body 24 needs to be lifted at least before the steering assembly 10 and the steering system 300 are loaded, and the elastic force of the steering assembly 10 is still supported to achieve the shock-absorbing effect. Referring to FIG. 4, when the steering assembly 10 and the steering system 300 are moved downward toward the fourth figure due to vibration during traveling, the elastic body 24 is in a compressed state, and the pressing member 25 faces away from the The direction of the sleeve 11 is moved. At this time, the elastic body 24 will buffer the vertical amplitude generated when the vibration is generated, and the pressing member 25 will gradually return to the direction of the sleeve 11. With the above configuration, the present invention can absorb the vibration of the vehicle body and reduce the degree of shaking of the passenger seat during the driving process of the scooter, thereby achieving the effect of making the ride more comfortable.

In this embodiment, the steering assembly 10 includes two balance bars 14 respectively connected from the sleeve 11 to opposite ends of the steering connection portion 12, and the elastic body 24 is correspondingly disposed on each of the balance bars 14 In the extended position, the above configuration enables the elastic force provided by the elastic body 24 to uniformly support the steering connecting portion 12, and if the vehicle body is tilted due to road surface bumping when traveling, the elastic body 24 will be from the lower side of the steering shaft 310 Provides a balanced elastic force to enhance the anti-rolling ability of the present invention.

In summary, the present invention utilizes the elastic body 24 to hold the top plate 121 of the steering connecting portion 12, and the combination of the difference in size between the main body through hole 23 and the side plate through hole 123 can be used by the elastic body when subjected to vertical vibration. 24 provides a buffering effect, and then the movement of the pressing member 25 in the hole forms a shock-absorbing structure, which can absorb the shock amplitude effect when driving, and can improve the cost of the conventional shock absorber, the complexity of the structure, and the lack of strength.

The above is a detailed description of the present invention, but the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent variation of the scope of the patent application of the present invention is Modifications are still within the scope of the patents of the present invention.

100‧‧‧Shock structure

10‧‧‧Steering components

11‧‧‧ bushing

12‧‧‧Steering connection

121‧‧‧ top board

122‧‧‧ side panels

123‧‧‧Side plate perforation

13‧‧‧ accommodating space

14‧‧‧ Balanced pole

20‧‧‧Axle assembly

21‧‧‧ body

22‧‧‧Axle joints

23‧‧‧ Body piercing

24‧‧‧ Elastomers

25‧‧‧forced parts

300‧‧‧Steering system

310‧‧‧Steering shaft

320‧‧‧ Wheels

Fig. 1 is an exploded perspective view showing the suspension structure of the electric vehicle of the present invention. Fig. 2 is a perspective assembled view of the suspension structure of the electric vehicle of the present invention. Fig. 3 is a perspective assembled view of the first embodiment of the present invention. Fig. 4 is a schematic view showing the operation of the first embodiment of the present invention.

Claims (6)

A suspension structure for an electric vehicle is assembled with a steering system, the steering system includes a steering shaft, and two wheels coupled with the steering shaft, and the suspension structure of the electric vehicle includes: a steering The assembly includes a bushing pivotally connected to the steering shaft, a steering connecting portion connecting the bushing and interlocking with the steering shaft, and a receiving space formed by recessing from the steering connecting portion; and an axle assembly including a body disposed in the accommodating space, two at the two ends of the body and respectively connected to each of the wheel axle connectors, a through hole of the body of the body, an elastic body disposed between the body and the sleeve, And a pressing member that is perforated through the body and movably connects the body and the steering connecting portion, wherein when the elastic body is in a relaxed state, the pressing member abuts against one end of the body corresponding to the sleeve, the elasticity When the body is in a compressed state, the pressing member moves away from the sleeve, and the elastic body will provide an elastic force to eliminate the vibration damping amplitude. The shock absorber structure of the electric vehicle of claim 1, wherein the steering connection portion includes a top plate adjacent to the sleeve, and two side plates respectively connected to opposite ends of the top plate and extending away from the sleeve And a perforation through the side panels of each of the side panels. The shock absorbing structure of the electric vehicle of claim 2, wherein the pressing member comprises a screw that perforates one of the side plates through the side plate, and a nut that combines the screw from the other side plate . The shock absorber structure of the electric vehicle of claim 2, wherein the body perforation has a long side extending away from the sleeve direction, and a short side of each of the two sides of the wheel, the side plate perforation Sliding along the long side and the position corresponds to the body perforation. The shock absorber structure of the electric vehicle of claim 1, wherein the steering assembly comprises two balance bars respectively connected from the sleeve to opposite ends of the steering joint, and the elastic body is correspondingly disposed on For each extended position of the balance bar, the elastic body is correspondingly disposed at an extended position of each of the balance bars. The shock absorbing structure of the electric vehicle according to claim 1, wherein the elastic body is a spring.