CN222973473U - Jackshaft subassembly and vehicle - Google Patents
Jackshaft subassembly and vehicle Download PDFInfo
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- CN222973473U CN222973473U CN202422325633.1U CN202422325633U CN222973473U CN 222973473 U CN222973473 U CN 222973473U CN 202422325633 U CN202422325633 U CN 202422325633U CN 222973473 U CN222973473 U CN 222973473U
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Abstract
本申请提供一种中间轴组件及车辆。中间轴组件包括中间轴、中间节叉、转向管柱节叉、转向器节叉、转动件及支撑件。中间轴以及转向管柱节叉与中间节叉万向转动连接，转向器节叉与中间轴万向转动连接。转动件固定至中间轴。转动件与支撑件转动安装，支撑件用于连接车辆的车身。中间轴、中间节叉、转向管柱节叉、转向器节叉之间形成了三个万向节结构，提高了中间轴组件的自由度，使其能够通过改变零件布置的方式降低自身占据的安装空间。与此同时，利用支撑件将中间轴固定至车身、并将转动件与支撑件转动安装，在防止中间轴无规则摆动的同时，使得中间轴组件能够按照预期进行零件布置的调整，以适应转向管柱调节的需要。
The present application provides an intermediate shaft assembly and a vehicle. The intermediate shaft assembly includes an intermediate shaft, an intermediate yoke, a steering column yoke, a steering gear yoke, a rotating member and a supporting member. The intermediate shaft and the steering column yoke are universally connected to the intermediate yoke, and the steering gear yoke is universally connected to the intermediate shaft. The rotating member is fixed to the intermediate shaft. The rotating member is rotatably mounted on the supporting member, and the supporting member is used to connect the vehicle body. Three universal joint structures are formed between the intermediate shaft, the intermediate yoke, the steering column yoke and the steering gear yoke, which improves the degree of freedom of the intermediate shaft assembly and enables it to reduce the installation space it occupies by changing the arrangement of parts. At the same time, the intermediate shaft is fixed to the vehicle body by using the supporting member, and the rotating member is rotatably mounted on the supporting member, so that while preventing the intermediate shaft from swinging irregularly, the intermediate shaft assembly can adjust the arrangement of parts as expected to meet the needs of steering column adjustment.
Description
Technical Field
The application relates to the technical field of transmission structures, in particular to an intermediate shaft assembly and a vehicle.
Background
The intermediate shaft assembly is an important component in the vehicle that is connected between the steering gear and the steering column at the bottom of the steering wheel for power transmission. Currently, in some vehicles, in order to increase the space at the rear of the vehicle, it is necessary to arrange parts at the front of the vehicle more compactly, resulting in compression of the installation space of the intermediate shaft assembly. Taking a commercial vehicle as an example, in order to secure the volume of the cargo hold, parts such as a driver seat and a steering wheel need to be moved forward. Because the degree of freedom of the conventional intermediate shaft assembly is low, the arrangement form of the conventional intermediate shaft assembly on the vehicle is single, and the adaptation to the reduction of the installation space by changing the arrangement form is difficult.
Disclosure of utility model
The application provides a middle shaft assembly and a vehicle to solve the related technical problems.
The application provides an intermediate shaft assembly, which comprises an intermediate shaft, an intermediate yoke, a steering column yoke, a steering knuckle yoke, a rotating piece and a supporting piece, wherein the intermediate shaft is connected with the intermediate yoke;
the intermediate shaft and the steering column knuckle fork are in universal rotation connection with the intermediate knuckle fork, and the steering device knuckle fork is in universal rotation connection with the intermediate shaft;
The rotating member is connected to the intermediate shaft, and is rotatably mounted with the supporting member for connecting with a body of a vehicle.
Further, the rotating member comprises a housing and a bearing fixed in the housing, the housing is rotatably mounted to the supporting member, and the intermediate shaft is mounted in cooperation with the bearing.
The support piece comprises a rotary mounting part, a first support piece and a second support piece, wherein the rotary mounting part is provided with a first through hole, a second through hole and a mounting space communicated with the first through hole and the second through hole;
The rotary part is spherical and is installed on the arc-shaped surface in a sliding and abutting mode.
The support piece further comprises a fixed plate used for connecting a vehicle body, wherein the rotation installation part comprises a first arc-shaped plate and a second arc-shaped plate;
The first arc-shaped plate extends from the fixed plate towards one side, the second arc-shaped plate extends from the fixed plate towards the other side, and the first arc-shaped plate and the second arc-shaped plate form the installation space.
Further, the fixing plate comprises a first fixing plate and a second fixing plate which are laminated and fixed;
The first arc-shaped plate is arranged on the first fixing plate and integrally formed with the first fixing plate, and/or the second arc-shaped plate is arranged on the second fixing plate and integrally formed with the second fixing plate.
Further, the vehicle body sealing device further comprises a sealing element, wherein the sealing element is arranged on the supporting element and used for sealing connection between the supporting element and the vehicle body.
Further, the intermediate yoke comprises a tube body, a pair of first connecting plates and a pair of second connecting plates;
The pair of first connecting plates protrude from one end of the pipe body to form a yoke structure which is connected with the intermediate shaft in a universal rotation mode, and the pair of second connecting plates protrude from the other end of the pipe body to form a yoke structure which is connected with the steering column yoke in a universal rotation mode.
Further, the support piece comprises a fixing plate and lugs arranged on the side edges of the fixing plate, wherein the lugs are provided with mounting holes for screwing the support piece to a vehicle body.
Further, the fixing plate is elliptical.
The application provides a vehicle comprising a body and the above-mentioned intermediate shaft assembly, the support being fixed to the body.
Three universal joint structures are formed among the intermediate shaft, the intermediate joint fork, the steering column joint fork and the steering device joint fork, so that the freedom degree of the intermediate shaft assembly is improved, the occupied volume of the intermediate shaft assembly can be reduced by changing the arrangement mode of parts, and the requirement of installation space is met. At the same time, the intermediate shaft is fixed to the vehicle body by the support piece, and the rotating piece and the support piece are rotatably installed, so that the intermediate shaft assembly can be adjusted according to expectations to adapt to the requirement of adjusting the angle of the steering column while preventing the intermediate shaft from swinging irregularly.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and together with the description, serve to explain the principles of the specification.
FIG. 1 is a block diagram of an intermediate shaft assembly in an exemplary embodiment of the application;
FIG. 2 is one of the partial block diagrams of the intermediate shaft assembly of FIG. 1;
FIG. 3 is a second partial block diagram of the intermediate shaft assembly of FIG. 1;
FIG. 4 is a block diagram of a side view of the support of FIG. 1;
FIG. 5 is a block diagram of the support of FIG. 4 from a front perspective;
FIG. 6 is a block diagram of a backside view of the support of FIG. 5;
fig. 7 is a schematic structural view of a vehicle in an exemplary embodiment of the present application.
The reference numerals describe the intermediate shaft, 10, the inner shaft, 11, the outer shaft, 12, the dust cover, 13, the first yoke, 14, the second yoke, 15, the intermediate yoke, 20, the body, 21, the first link plate, 22, the second link plate, 23, the steering column yoke, 30, the steering column yoke, 40, the rotating member, 50, the housing, 51, the support member, 60, the rotating mount, 61, the first through hole, 611, the second through hole, 612, the mounting space, 613, the arcuate surface, 614, the first arcuate plate, 615, the second arcuate plate, 616, the fixed plate, 62, the first fixed plate, 621, the second fixed plate, 622, the lugs, 63, the mounting hole, 631, the seal member, 70, the vehicle, 80, the front cabin, 801, the passenger cabin, 802, the trunk, 803, the vehicle body, 81.
Detailed Description
The technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described herein with reference to the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated.
If there are terms (e.g., upper, lower, left, right, front, rear, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, lateral, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.) related to directional indications or positional relationships in embodiments of the present application, such terms are used merely to explain the relative positional relationships, movement, etc. between the components at a particular pose (as shown in the drawings), and if the particular pose is changed, the directional indications or positional relationships are correspondingly changed. In addition, the terms "first", "second", etc. in the embodiments of the present application are used for descriptive convenience only and are not to be construed as indicating or implying relative importance.
The intermediate shaft assembly is an important part in a vehicle steering system, one end of the intermediate shaft assembly is connected with a steering column, and the other end of the intermediate shaft assembly is connected with a steering gear so as to transfer power. The degree of freedom of the traditional intermediate shaft assembly is low, the arrangement form of the traditional intermediate shaft assembly on a vehicle is single, and the adaptation to the reduction of the installation space is difficult to be carried out by changing the arrangement form. The application provides a middle shaft assembly and a vehicle to solve the related technical problems.
As shown in fig. 1, the present application provides a middle shaft assembly including a middle shaft 10, a middle yoke 20, a column yoke 30, a knuckle yoke 40, a rotating member 50, and a supporting member 60. The intermediate shaft 10 and the steering column yoke 30 are connected to the intermediate yoke 20 in a universal rotation manner. The steering yoke 40 is connected to the intermediate shaft 10 in a rotationally universal manner. The rotating member 50 is connected to the intermediate shaft 10. The rotating member 50 is rotatably mounted with the supporting member 60. The support 60 is for attachment to the body of a vehicle.
Three universal joint structures are formed among the intermediate shaft 10, the intermediate yoke 20, the steering column yoke 30 and the steering knuckle yoke 40, so that the freedom degree of the intermediate shaft assembly is improved. The intermediate shaft assembly can reduce the occupied volume and optimize the steering torque fluctuation by changing the arrangement mode of parts. The specific arrangement mode of the intermediate shaft assembly is not limited, the requirement of the installation space can be met, and the steering torque fluctuation can be controlled within a reasonable range.
On the other hand, the intermediate shaft 10 is fixed to the vehicle body by the support 60, and the unordered movement of the intermediate shaft assembly is restrained, so that the intermediate shaft 10 is prevented from irregularly swinging, and the normal operation of the intermediate shaft assembly is ensured. Furthermore, there is no need to provide a fixing point through the steering column of the vehicle, simplifying the structure.
At the same time, since the rotary member 50 is rotatably mounted with the supporting member 60, the degree of freedom of the intermediate shaft 10 is increased so that it can move within a certain range. Thus, while avoiding random rocking of the intermediate shaft 10, the intermediate shaft assembly is also capable of angular adjustment of the parts as desired to accommodate the steering column angle adjustment needs.
As shown in fig. 1, the intermediate shaft 10 includes an inner shaft 11, an outer shaft 12, a dust cap 13, a first yoke 14, and a second yoke 15. The inner shaft 11 is sleeved in the outer shaft 12, and the inner shaft 11 and the outer shaft are connected through splines and can slide relatively along the axial direction so as to adjust the size and absorb the impact in the steering process. The dust cap 13 is press-fitted to the outer shaft 12, and shields the mounting gaps of the inner shaft 11 and the outer shaft 12 from dust.
The first yoke 14 and the second yoke 15 are located at both ends of the intermediate shaft 10. The first yoke 14 may be press-fitted to the inner shaft 11 with interference and welded. The second yoke 15 may also be press fit to the outer shaft 12 with interference and welded. By adjusting the phase angle of the first yoke 14 and the second yoke 15, the fluctuation of the rotational torque of the intermediate shaft assembly can be improved.
As shown in fig. 2, the two connection points of the first yoke 14 are connected to form a first axis. The connection line of the two connection points of the second joint fork forms a second axis. The phase angle of the first yoke 14 and the second yoke 15 is the angle by which the second axis rotates relative to the first axis. In an embodiment, the phase angle of the first yoke 14 to the second yoke 15 may be-62, i.e. the second axis is rotated 62 clockwise relative to the first axis as seen in the direction from the second yoke 15 to the first yoke 14. The specific phase angle between the first yoke 14 and the second yoke 15 is not limited.
As shown in fig. 1, the intermediate yoke 20 may have a tubular shape, and includes a tube body 21, a pair of first connection plates 22, and a pair of second connection plates 23. A pair of first connection plates 22 protrude from one end of the pipe body 21 to form a yoke structure connected with the intermediate shaft 10 in a universal rotation. A pair of second connection plates 23 protrude from the other end of the pipe body 21 to form a yoke structure connected with the steering column yoke 30 in a universal rotation.
The middle yoke 20 is arranged in a hollow mode and integrally formed, so that manufacturing difficulty of the middle yoke 20 is reduced, and production efficiency of the middle shaft assembly is improved. At the same time, the strength of the intermediate yoke 20 is increased, improving the stability of the intermediate shaft assembly.
By adjusting the phase angle of the yoke structure on both ends of the intermediate yoke 20, the fluctuation of the rotational torque of the intermediate shaft assembly can be improved. As shown in fig. 3, the connection point connection lines of the pair of first connection plates 22 form a third axis, and the connection point connection lines of the pair of second connection plates 23 form a fourth axis. In one embodiment, the phase angle of the yoke structure at both ends of the intermediate yoke 20 may be 28 °. That is, the third axis is rotated counterclockwise by 28 ° with respect to the fourth axis as viewed in the direction from the first connecting plate 22 to the second connecting plate 23.
The first connecting plate 22 and the first yoke 14, the second connecting plate 23 and the steering column yoke 30, and the second yoke 15 and the steering column yoke 40 can be assembled by riveting through a cross shaft and a needle bearing so as to realize respective universal rotation connection. The manner of realizing the universal rotational connection between the intermediate shaft 10 and the intermediate yoke 20, between the intermediate shaft 10 and the steering yoke 40, and between the intermediate yoke 20 and the column yoke 30 is not limited, and may be spherical joint connection or the like.
As shown in fig. 1, the rotating member 50 may include a housing 51 and a bearing (not shown) fixed in the housing 51. The housing 51 is rotatably mounted to the support 60. The intermediate shaft 10 is mounted in cooperation with bearings. By providing bearings in the housing 51, relative rotation is possible between the intermediate shaft 10 and the support 60, and between the intermediate shaft 10 and the rotating member 50, further improving the degree of freedom of the intermediate shaft assembly while restraining irregular oscillation of the intermediate shaft 10. The application scope of the intermediate shaft assembly is increased, and the intermediate shaft assembly can adapt to the size requirement of more installation spaces and the angle adjustment requirement of the steering column. The bearing may be a needle bearing, and the specific type of bearing is not limited.
In other embodiments, the intermediate shaft 10 and the rotating member 50 may be fixedly connected, and there is no relative movement between the two, so that the intermediate shaft 10 can rotate itself through the relative movement between the rotating member 50 and the supporting member 60. In this embodiment, the rotary member 50 may be a separate component and fixedly mounted to the intermediate shaft 10. The intermediate shaft 10 may also be integrally formed with the rotary member 50.
As shown in fig. 4, the support 60 may include a rotation mounting portion 61 and a fixing plate 62. The rotation mounting portion 61 may be provided with a first through hole 611, a second through hole 612, and a mounting space 613 communicating the first through hole 611 and the second through hole 612, and the rotation mounting portion 61 includes an arc surface 614 facing the mounting space 613. The rotating member 50 may be spherical and slidably mounted in abutment with the arcuate surface 614. Grease is applied between the rotor 50 and the arcuate surface 614 to improve the sliding effect.
Because the rotating member 50 is spherical, by sliding relative to the arcuate surface 614, it can rotate about its own center of sphere to effect rotational mounting of the rotating member 50 and the support member 60 and adjust the tilt angle of the intermediate shaft 10 to accommodate the steering column angle adjustment requirements. The spherical connection mode can enlarge the rotatable range of the intermediate shaft 10, further improves the freedom degree of the intermediate shaft assembly, increases the flexibility of the setting component of the intermediate shaft assembly while preventing the intermediate shaft 10 from swinging randomly, and further enlarges the application range of the intermediate shaft assembly.
As shown in fig. 4 to 6, the rotation mounting portion 61 may include a first curved plate 615 and a second curved plate 616. The first curved plate 615 is formed to extend from the fixing plate 62 toward one side, and the second curved plate 616 is formed to extend from the fixing plate 62 toward the other side. The first curved plate 615 and the second curved plate 616 form an installation space 613.
The fixing plate 62 extends to two sides to form a first arc-shaped plate 615 and a second arc-shaped plate 616, so as to form a mounting space 613 and an arc-shaped surface 614, thereby reducing the manufacturing difficulty of the supporting member 60. In other embodiments, the rotary mounting portion 61 may be block-shaped and machined therein to form the mounting space 613 and the arcuate surface 614. The specific structural form of the rotation mounting portion 61 is not limited.
In one embodiment, the first curved plate 615 and the second curved plate 616 may be hemispherical. A first through hole 611 is formed between the edge of the first arc-shaped plate 615 and the fixing plate 62. A second through hole 612 is formed between the edge of the second curved plate 616 and the fixed plate 62. The specific configurations of the first curved plate 615 and the second curved plate 616 are not limited.
In one embodiment, as shown in fig. 4, the fixing plate 62 includes a first fixing plate 621 and a second fixing plate 622 that are laminated and fixed. The first fixing plate 621 and the second fixing plate 622 may be formed by welding. As shown in fig. 4 to 6, the first arc-shaped plate 615 may be disposed at the first fixing plate 621 and integrally formed with the first fixing plate 621. The second curved plate 616 may be disposed on the second fixing plate 622 and integrally formed with the second fixing plate 622.
Through setting up first fixed plate 621 and second fixed plate 622 components of a whole that can function independently to make first arc 615 set up in first fixed plate 621, second arc 616 set up in second fixed plate 622, can separate the rotation installation department 61 that is hollow spherical, with the manufacturing degree of difficulty of further reducing support piece 60, improvement production efficiency.
Specifically, the first fixing plate 621 may be integrally press-molded with the first arc-shaped plate 615. The second fixing plate 622 may be integrally formed with the second curved plate 616 by punching. In other embodiments, only the first fastening plate 621 may be integrally formed with the first arcuate plate 615, or only the second fastening plate 622 may be integrally formed with the second arcuate plate 616. The fixing plate 62 may have an oval shape, which can improve the stress distribution of the support 60, reduce the risk of stress concentration, and improve the installation stability of the intermediate shaft assembly. The specific structural form of the fixing plate 62 is not limited.
As shown in fig. 5 and 6, in one embodiment, the support 60 may further include a ledge 63. The lugs 63 are disposed on the sides of the fixing plate 62. The lugs 63 are provided with mounting holes 631 for screwing the support 60 to the vehicle body. Through the mode of screw connection, the installation effectiveness of the supporting piece 60 is improved, and the later disassembly and maintenance are convenient while the installation strength is higher. The number of the lugs 63 may be three, and the specific number and distribution of the lugs 63 are not limited, and may be arranged at intervals along the side of the fixing plate 62.
As shown in fig. 6, the intermediate shaft assembly may also include a seal 70. The seal 70 is provided to the support 60 for sealing connection of the support 60 to the vehicle body. Specifically, the seal 70 abuts between the fixing plate 62 and the vehicle body, so that dust or moisture can be prevented from entering the interior of the intermediate shaft assembly through the support 60, and the service life of the intermediate shaft assembly is prolonged.
As shown in fig. 7, the present application also provides a vehicle including a vehicle body 81 and the above-described intermediate shaft assembly, and the support member 60 is fixed to the vehicle body 81. On the one hand, since the intermediate shaft assembly of the present application can reduce the volume by changing the arrangement of the parts, the occupied volume of the front cabin 801 can be reduced, so that the volume of the passenger compartment 802 or the trunk 803 can be increased, and the driving experience of the user can be improved. On the other hand, the intermediate shaft assembly can adjust the angle so as to meet the angle adjustment requirement of the steering column, so that the steering wheel has the function of angle adjustment, and the driving experience of a user is further improved.
Specifically, the vehicle body 81 may be a dash panel, and since the passenger compartment 802 has a larger space than the front cabin 801, the support 60 may be mounted to the side of the dash panel facing the passenger compartment 802, reducing the difficulty of mounting, and improving the mounting efficiency. The vehicle of the present application may be a passenger car, a commercial car, or the like, and the specific kind is not limited.
It should be noted that the technical solutions or technical features described in the above embodiments may be combined or supplemented with each other without generating a conflict. The scope of the present application is not limited to the exact construction described in the above embodiments and illustrated in the accompanying drawings, but modifications, equivalents, improvements, etc. that fall within the spirit and principle of the present application are intended to be included in the scope of the present application.
Claims (10)
1. The intermediate shaft assembly is characterized by comprising an intermediate shaft, an intermediate yoke, a steering column yoke, a steering knuckle yoke, a rotating piece and a supporting piece;
the intermediate shaft and the steering column knuckle fork are in universal rotation connection with the intermediate knuckle fork, and the steering device knuckle fork is in universal rotation connection with the intermediate shaft;
The rotating member is connected to the intermediate shaft, and is rotatably mounted with the supporting member for connecting with a body of a vehicle.
2. The intermediate shaft assembly of claim 1, wherein the rotatable member comprises a housing and a bearing secured within the housing, the housing being rotatably mounted to the support member, the intermediate shaft being mounted in cooperation with the bearing.
3. The intermediate shaft assembly according to claim 1, wherein the support member includes a rotation mounting portion provided with a first through hole, a second through hole, and a mounting space communicating the first through hole and the second through hole;
The rotary part is spherical and is installed on the arc-shaped surface in a sliding and abutting mode.
4. The countershaft assembly according to claim 3 wherein said support further includes a fixed plate for connecting to a vehicle body;
The first arc-shaped plate extends from the fixed plate towards one side, the second arc-shaped plate extends from the fixed plate towards the other side, and the first arc-shaped plate and the second arc-shaped plate form the installation space.
5. The countershaft assembly according to claim 4 wherein said securing plate includes a first securing plate and a second securing plate secured in a stack;
The first arc-shaped plate is arranged on the first fixing plate and integrally formed with the first fixing plate, and/or the second arc-shaped plate is arranged on the second fixing plate and integrally formed with the second fixing plate.
6. The intermediate shaft assembly of claim 1, further comprising a seal disposed on the support for sealing connection of the support to a vehicle body.
7. The intermediate shaft assembly of claim 1, wherein the intermediate yoke comprises a tube, a pair of first connection plates, and a pair of second connection plates;
The pair of first connecting plates protrude from one end of the pipe body to form a yoke structure which is connected with the intermediate shaft in a universal rotation mode, and the pair of second connecting plates protrude from the other end of the pipe body to form a yoke structure which is connected with the steering column yoke in a universal rotation mode.
8. The intermediate shaft assembly according to claim 1, wherein the support member comprises a fixing plate and lugs provided at sides of the fixing plate, the lugs being provided with mounting holes for screwing the support member to a vehicle body.
9. The intermediate shaft assembly of claim 8, wherein the stationary plate is elliptical.
10. A vehicle comprising a body and the intermediate shaft assembly according to any one of claims 1-9, the support being secured to the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422325633.1U CN222973473U (en) | 2024-09-23 | 2024-09-23 | Jackshaft subassembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422325633.1U CN222973473U (en) | 2024-09-23 | 2024-09-23 | Jackshaft subassembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222973473U true CN222973473U (en) | 2025-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422325633.1U Active CN222973473U (en) | 2024-09-23 | 2024-09-23 | Jackshaft subassembly and vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN222973473U (en) |
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- 2024-09-23 CN CN202422325633.1U patent/CN222973473U/en active Active
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Address after: 310051 Jiangling Road, Hangzhou, Zhejiang, No. 1760, No. Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region after: China Patentee after: Zhejiang Remote New Energy Commercial Vehicle Group Co.,Ltd. Patentee after: Hunan Remote New Energy Commercial Vehicle Co.,Ltd. Address before: 310051 Jiangling Road, Hangzhou, Zhejiang, No. 1760, No. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region before: China Patentee before: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. Patentee before: Hunan Remote New Energy Commercial Vehicle Co.,Ltd. |