TWI594902B - Electrical vehicle and suspension structure thereof - Google Patents

Description

Electric vehicle and its suspension structure

The present invention relates to electric vehicles, and more particularly to an electric vehicle and its suspension structure.

According to the general electric vehicle system disclosed in Japanese Patent No. TW474280, the structure comprises at least a front wheel device, a rear wheel device, a frame and a car cover. The front wheel device has a faucet, and the car cover has a set of mouths. The faucet can be sleeved and covered with the front wheel device, the rear wheel device and the frame, and the electric vehicle further has a power mechanism and an electric control circuit for operating the rear wheel device.

However, the electric vehicle structure as described above lacks a stable suspension device, so that it is easy to slip or dump during the turning process, causing safety concerns; in addition, when encountering uneven road surface, it is impossible to effectively generate shock absorbers and The function of resetting affects the comfort of the user when riding. In addition, how to further effectively improve the stability of the structure is also the goal of the research of the present invention.

Therefore, it is necessary to provide a novel and progressive electric vehicle and its suspension structure to solve the above problems.

The main object of the present invention is to provide an electric vehicle and a suspension structure thereof, which can be provided There are pivotal upper and lower arm members and connecting members, which can realize the functions of reciprocating motion and resetting through the shock absorber; in addition, the upper and lower arm members can be arranged in parallel and have a V shape to form a stable suspension device. In addition, it can be easily deformed; in addition, it can have an elastically deformable bearing member, which can increase the smoothness and flexibility of the pivoting rotation; and can make the front wheel maintain a stable grip state with the ground when the steering wheel is turned, and it is not easy to slip.

In order to achieve the above object, the present invention provides a suspension structure for an electric vehicle, comprising: a frame body; two suspension devices respectively disposed on opposite sides of the frame body, each of the suspension devices including an upper arm member a lower arm member, a connecting member and a shock absorber device, the upper arm member and the lower arm member are pivotally connected to the frame body, and the upper and lower arm members are respectively pivotally connected to the connecting member, the upper arm member And the pivot axes of the lower arm member being pivotally connected to the frame body and the connecting member are substantially parallel, and the shock absorber is coupled to the frame body and the connecting member.

In order to achieve the above object, the present invention further provides an electric vehicle comprising the suspension structure of the electric vehicle as described above, and further comprising a rear wheel portion and an electronic control unit assembled to the frame body, the electric The control component is electrically connected to the rear wheel portion, and the electronic control component is operable to drive the rear wheel portion.

1‧‧‧suspension structure of electric vehicles

2‧‧‧Electric vehicles

10‧‧‧ Frame body

11‧‧‧ bracket

12‧‧‧ column

13‧‧‧ rear bracket

20‧‧‧suspension device

21‧‧‧Upper arm

211‧‧‧First arm

22‧‧‧ Lower arm

221‧‧‧ second arm

23‧‧‧Connecting parts

231‧‧‧ first side

232‧‧‧ second side

24‧‧‧Shock absorber

25‧‧‧ bearing parts

251‧‧ Inner ring

252‧‧‧Outer ring

253‧‧‧Flexible Department

26‧‧‧Axis bolts

30‧‧‧Axle device

32‧‧‧ linkage rod

321‧‧‧Ball joint

33‧‧‧ pivot

34‧‧‧ front wheel

35‧‧‧Connected

36‧‧‧ datum

37‧‧‧Extension

40‧‧‧ steering mechanism

41‧‧‧Hands

42‧‧‧Steering Department

50‧‧‧ Rear Wheel

51‧‧‧ rear suspension assembly

52‧‧‧ Rear wheel

53‧‧‧ rear shock absorber

54‧‧‧ pole

541‧‧‧ first end

542‧‧‧ second end

60‧‧‧Electronic control components

61‧‧‧Battery Department

62‧‧‧Switch Department

63‧‧‧Electric motor

31‧‧‧Axle section

64‧‧‧Starting Department

1 is a perspective view of a preferred embodiment of the present invention.

Figure 2 is a partial schematic view of the preferred embodiment of the present invention.

Figure 3 is a schematic illustration of a bearing member of the preferred embodiment of the present invention.

4 is a schematic view of a ball joint of the preferred embodiment of the present invention.

Figure 5 is another perspective view of the preferred embodiment of the present invention.

Figure 6 is a schematic view showing the first use state of the preferred embodiment of the present invention.

Figure 7 is a schematic view showing the second state of use of the preferred embodiment of the present invention.

Figure 8 is a schematic view showing a third state of use of the preferred embodiment of the present invention.

Figure 9 is a schematic view showing a fourth state of use of the preferred embodiment of the present invention.

The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the invention as claimed.

Please refer to FIG. 1 to FIG. 9 , which illustrate a preferred embodiment of the present invention. The suspension structure 1 of an electric vehicle of the present invention may include a frame body 10 and two suspension devices 20 .

The frame body 10 can be, for example, a metal steel structure and can be assembled by welding. The two suspension devices 20 can be respectively disposed on opposite sides of the frame body 10, and further, each of the suspension devices For example, the upper arm member 21, the lower arm member 22, a connecting member 23 and a shock absorbing device 24 may be included. The upper arm member 21 and the lower arm member 22 are pivotally connected to the frame body 10 at intervals, for example. In this embodiment, the upper arm member 21 and the lower arm member 22 are substantially parallel to each other. However, in other possible embodiments, the upper arm member 21 and the lower arm member 22 may not be parallel to each other and each other. For example, an angle can be set. The upper arm member 21 and the lower arm member 22 are respectively pivotally connected to the connecting member 23, and the shock absorber 24 is connectable to the frame body 10 and the connecting member 23.

As described above, the pivot axes of the upper arm member 21 and the lower arm member 22 pivotally connected to the frame body 10 and the connecting member 23 are substantially parallel. Further, the upper arm member 21, The lower arm member 22, the connecting member 23 and the frame body 10 can form a four-bar linkage structure, and the upper arm member 21, the lower arm member 22 and the connecting member 23 can be coupled to the frame body 10 in a cooperative manner. towards Swinging in one direction, more specifically, the shock absorber 24 is releasably coupled between the frame body 10 and the connecting member 23, so that when the connecting member 23 passes through the upper arm member 21 and the lower arm member When pivotally swinging relative to the frame body 10, the connecting member 23 can be returned to a predetermined position through the push-pull of the shock absorber 24, and the functions of reciprocating and resetting can be achieved.

In the present embodiment, the upper arm member 21 can have two first arm portions 211, and the two first arm portions 211 can respectively connect the connecting member 23 and the frame body 10, and the two first arm portions 211 are respectively connected. The connecting member 23 can extend in two different directions and form a substantially V-shaped shape. More specifically, one end of the two first arm portions 211 can be connected to the connecting member 23, and the two The other end of the first arm portion 211 is pivotally connected to the frame body 10, and the two first arm portions 211 of the V-shape are stably connected to the connecting member 23 and the frame body 10.

The lower arm member 22 can also have two second arm portions 221, which can extend from the connecting member 23 in two different directions and form a substantially V-shaped shape. One end of the second portion 221 can be connected to the connecting member 23, and the other end of the second arm portion 221 can be pivotally connected to the frame body 10 at intervals, so that the second arm portion 221 can be stabilized. The connecting member 23 and the frame body 10 are connected to each other. It is worth mentioning that the upper arm member 21 and the lower arm member 22 which are disposed in parallel with each other and have a substantially V-shaped shape in the embodiment can be formed stably. The suspension device enables the suspension device 20 to generate a stable shock absorber and return reset function when encountering uneven road surface, for example, to avoid easy dumping.

The upper arm member 21 and the lower arm member 22 and the frame body 10 are respectively connected with at least one bearing member 25 and at least one shaft bolt member 26 (in the embodiment, for example, the bearing member 25 and the plurality of shafts) a bolt member 26), wherein the shaft member 26 can respectively pass the bearing member 25 and the upper and lower arm members 21, 22 and the frame body 10, and further, the upper arm member 21 and the lower portion The arm member 22 can be pivotally connected to the frame body 10 through the bearing member 25 and the shaft member 26, and each of the bearing members 25 can have an inner ring member 251 and an outer ring member 252. Between the ring members 251, 252, for example, a resilient portion 253 can be provided, for example, the elastic portion 253 of the bearing member 25 can generate a predetermined amount of deformation, and the upper arm member 21 and the lower arm member can be made. The position at which the frame body 10 is pivotally connected to each other can have a predetermined space for relative movement, and the smoothness and flexibility of the pivoting rotation can be increased.

The frame body 10 can include two brackets 11 disposed parallel to each other and a column 12 disposed between the two brackets 11, each of the brackets 11 being parallel to the pivot axis, and the column 12 is coupled to the pivot The directions of the rotation axes are orthogonal, so that the upper and lower arm members 21, 22 can be respectively pivotally connected to the two brackets 11, and the suspension device 24 can be connected to the column 12. The suspension structure 1 can further include a two-axle device 30 and a steering mechanism 40. Each of the axle devices 30 can be respectively connected to each of the suspension devices 20, and the steering mechanism 40 is movably disposed on the frame body. 10. Further, the steering mechanism 40 can include, for example, a handle portion 41 and a steering portion 42 that is operable to interlock the steering portion 42.

Furthermore, each of the axle devices 30 can include, for example, an axle portion 31 and an interlocking lever 32. The axle portion 31 and the connecting member 23 can be pivotally connected to each other along a pivot 33, and the direction of the pivot 33 It is orthogonal to the direction of each of the pivot axes. The connecting member 23 can have, for example, a first side 231 and a second side 232, such that the upper and lower arm members 21, 22 and the shock absorber 24 can be disposed on the first side 231. 31 can be disposed on the second side 232, and a front wheel 34 can be pivotally connected to one side of the axle portion 31. The axle portion 31 can have a connecting end 35 extending from a position of the pivot 33 toward a direction transverse to but not perpendicular to the pivot 33. The linkage rod 32 can be coupled to the connecting end 35 and the steering mechanism 40. Further, the turning portion 42 can When the user operates the handle portion 41 to rotate the steering portion 42, the linkage portion 32 can be interlocked to drive the axle portion 31 to generate rotation, and the front wheel 34 can be steered.

It is worth mentioning that the axle portion 31 can define a reference surface 36 perpendicular to the pivot shaft 33. The terminal end 35 can extend laterally obliquely with respect to the reference surface 36, and the joint end 35 and the reference surface 36 Preferably, the intermediate portion can have an angle of about 4 degrees. When the connecting end 35 is rotated by the linkage rod 32 to rotate the axle portion 31 and the front wheel 34, the lateral inclination of the connecting end 35 can be made. The front wheel 34 can be kept perpendicular to the ground during the rotation process, and the front wheel 34 can maintain a stable grip state with the ground and is not easy to slip. The axle portion 31 may further have an extending end 37 extending from the position of the pivot shaft 33 in a direction opposite to the connecting end 35. The extending end 37 is integrally formed with the connecting end 35, and the extending end 37 is formed. It can also be assembled with the linkage rod 32. The two ends of the linkage rod 32 can respectively have a ball joint 321 which is respectively connected with the joint 35 and the steering mechanism 40, and the two ball joints 321 can make the joint The linkage between the 35 and the steering mechanism 40 is smoother and more flexible.

Referring to FIG. 1 and FIG. 5 again, the present invention further provides an electric vehicle 2 comprising the suspension structure 1 of the electric vehicle as described above, the electric vehicle 2 further comprising one of the frame body 10 The wheel portion 50 and an electronic control unit 60 are electrically connected to the rear wheel portion 50. The electronic control unit 60 is operable to drive the rear wheel portion 50. Further, the rear wheel portion 50 is further The second rear suspension assembly 51 and the second rear wheel 52 may be included. The electronic control unit 60 may include a battery unit 61, a switch unit 62, an electric motor 63 and a starting portion 64. The switch unit 62 and the electric motor 63 and the starting unit 64 are electrically connected to the battery unit 61, respectively.

The switch portion 62 is operable to open or close the power supply of the battery portion 61, the second The rear wheel 52 and the two rear suspension assemblies 51 are respectively disposed on two sides of the electric motor 63, and the electric motor 63 can drive the two rear wheels 52. The starting portion 64 is electrically connected to the electric motor 63, and The starting portion 64 is operable to drive the electric motor 63. Each of the rear suspension assemblies 51 has a rear suspension device 53 and a rod 54. The frame body 10 further includes a rear bracket 13 A first end 541 is pivotally connected to the rear bracket 13 , and a second end 542 of the support rod 54 extends from the first end 541 toward the steering mechanism 40 , and the rear shock absorber 53 is connected to the first end Between the two ends 542 and the rear bracket 13 , the rear wheel 52 is disposed on one side of the struts 54 and between the first end 541 and the second end 542 .

In summary, an electric vehicle and a suspension structure thereof according to the present invention can have pivotal upper and lower arm members and connecting members along the same pivot axis, and can be pushed and pulled through the shock absorber to achieve reciprocating motion and The function of resetting; in addition, the upper and lower arm members can be arranged in parallel and have a V shape, can form a stable suspension device, and can generate stable shock absorber and return reset function, avoiding easy dumping; The elastically deformable bearing member can increase the smoothness and flexibility of the pivoting rotation; and can have a laterally inclined connecting end, so that the front wheel can maintain a stable grip state when the steering wheel is turned, and is not easy to slip.

In summary, the overall structural design, practicability and efficiency of the present invention are indeed fully in line with the needs of industrial development, and the disclosed structural invention is also an unprecedented innovative structure, so it has "novelty" should Undoubtedly, the invention can be more effective than the conventional structure, and therefore has "progressiveness", which fully complies with the requirements of the application requirements of the invention patents of the Chinese Patent Law, and is filed according to law, and please The bureau will review it early and give it affirmation.

1‧‧‧suspension structure of electric vehicles

10‧‧‧ Frame body

20‧‧‧suspension device

31‧‧‧Axle section

34‧‧‧ front wheel

Claims (9)

The suspension structure of an electric vehicle comprises: a frame body; two suspension devices are respectively disposed on opposite sides of the frame body, and each suspension device comprises an upper arm member, a lower arm member and a connecting member The upper arm member and the lower arm member are pivotally connected to the frame body, and the upper and lower arm members are respectively pivotally connected to the connecting member, the upper arm member and the lower arm member and the vehicle. The pivot axes of the frame body and the connecting member are substantially parallel, and the shock absorber is connected to the frame body and the connecting member; wherein the upper arm member and the lower arm member are coupled to the frame body At least one bearing member and at least one shaft bolt are respectively connected, each of the bearing members has an inner ring member and an outer ring member, and the inner ring and the outer ring member are provided with an elastic portion between the inner ring and the outer ring member. The bearing members and the upper and lower arm members and the frame body are respectively disposed. The suspension structure of the electric vehicle according to claim 1, further comprising a two-axle device and a steering mechanism, each of the axle devices being respectively connected to each of the suspension devices, wherein the steering mechanism is movably disposed on the frame body Each of the axle devices includes a wheel shaft portion and a linkage rod, the wheel shaft portion and the connecting member are pivotally connected to each other along a pivot axis, the direction of the pivot axis is orthogonal to the direction of each of the pivot axes, and the axle portion has a The connecting rod extends from the position of the pivot toward a joint extending transversely but not perpendicular to the pivot. The linkage rod is coupled to the joint and the steering mechanism. The suspension structure of the electric vehicle according to claim 2, wherein the axle portion defines a reference surface perpendicular to the pivot shaft, the joint end is inclined obliquely with respect to the reference surface, and the joint end has a space between the joint end and the reference surface It is an angle of 4 degrees. The suspension structure of the electric vehicle according to claim 2, wherein the opposite ends of the linkage rod are respectively There is a ball joint, and the two ball joints are respectively connected to the joint and the steering mechanism. The suspension structure of the electric vehicle according to claim 1, wherein the upper arm member has two first arm portions, and the two first arm portions respectively connect the connecting member and the frame body, the two first arm portions are The connectors extend in two different directions and form a substantially V-shaped shape. The suspension structure of the electric vehicle according to claim 1, wherein the lower arm member has two second arm portions, and the second second arm portions respectively connect the connecting member and the frame body, and the second arm portions are respectively The connecting members extend in two different directions and form a substantially V-shaped shape. The suspension structure of the electric vehicle according to claim 2, wherein the upper arm member and the lower arm member are substantially parallel to each other, the connecting member having a first side and a second side, the upper and lower arms And the suspension device is disposed on the first side, the axle portion is disposed on the second side, one side of the axle portion is pivotally connected to a front wheel, and the frame body comprises two brackets and a plurality of brackets disposed in parallel with each other a column between the two brackets, wherein the brackets are parallel to the pivot axis, the pillars are orthogonal to the pivot axis, and the upper and lower arm members are pivotally connected to the two brackets respectively. a suspension device is coupled to the column, the steering mechanism includes a handle portion and a steering portion, the handle portion is operable to interlock the steering portion, the steering portion is coupled to the linkage rod, and the axle portion further has a self-supporting portion The position of the shaft extends toward an extending end opposite to the direction of the connecting end, and the extending end is integrally formed with the connecting end. An electric vehicle, comprising the suspension structure of the electric vehicle according to any one of claims 1 to 7, further comprising a rear wheel portion and an electronic control unit assembled to the frame body, the electronic control The component is electrically connected to the rear wheel portion, and the electronic control component is operable to drive the rear wheel portion. The electric vehicle of claim 8, wherein the rear wheel portion comprises two rear suspension components and two rear wheels, the electronic control component comprising a battery portion, a switch portion, an electric motor and a starting portion. The switch portion, the electric motor and the starting portion are respectively electrically connected to the battery portion, and the switch portion is operable to open or close the power supply of the battery portion, wherein the two rear wheels and the two rear suspension components are respectively disposed on Two sides of the electric motor, and the electric motor can drive the two rear wheels, the starting portion is electrically connected to the electric motor, and the starting portion is operable to drive the electric motor, and each of the rear suspension components has a rear a suspension device and a rod, the frame body further comprising a rear bracket, wherein a first end of the strut is pivotally connected to the rear bracket, and a second end of the strut is from the first end The steering mechanism is extended. The rear suspension device is connected between the second end and the rear bracket. The rear wheel is disposed on one side of the strut and between the first end and the second end.