CN111746650B - Front auxiliary frame of automobile and automobile - Google Patents

Front auxiliary frame of automobile and automobile Download PDF

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Publication number
CN111746650B
CN111746650B CN201910233541.1A CN201910233541A CN111746650B CN 111746650 B CN111746650 B CN 111746650B CN 201910233541 A CN201910233541 A CN 201910233541A CN 111746650 B CN111746650 B CN 111746650B
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CN
China
Prior art keywords
auxiliary frame
automobile
subframe
front wall
cooling module
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Application number
CN201910233541.1A
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Chinese (zh)
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CN111746650A (en
Inventor
韩旭
吴鹏
闫高峰
衣鹏
王德远
刘兵川
葛绪坤
吴泽勋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Ruilan Automobile Research Institute Co ltd
Zhejiang Geely Holding Group Co Ltd
Original Assignee
Zhejiang Jizhi New Energy Automobile Technology Co Ltd
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Application filed by Zhejiang Jizhi New Energy Automobile Technology Co Ltd filed Critical Zhejiang Jizhi New Energy Automobile Technology Co Ltd
Priority to CN201910233541.1A priority Critical patent/CN111746650B/en
Publication of CN111746650A publication Critical patent/CN111746650A/en
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Publication of CN111746650B publication Critical patent/CN111746650B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • B62D21/152Front or rear frames

Abstract

The invention provides a front auxiliary frame of an automobile, which comprises a front wall cross beam, two auxiliary frame longitudinal beams and a cooling module mounting beam, and is characterized in that the auxiliary frame longitudinal beams are provided with bending guide parts, the direction of the connecting line of the bending guide parts 21 is vertical to the auxiliary frame longitudinal beams, the front wall cross beam and the cooling module mounting beam are arranged in parallel, the two auxiliary frame longitudinal beams are arranged between the front wall cross beam and the cooling module mounting beam, and the front wall cross beam, the two auxiliary frame longitudinal beams and the cooling module mounting beam are enclosed to form a frame structure; the invention also provides an automobile, which is characterized by comprising the automobile front auxiliary frame in the technical scheme; according to the automobile front subframe provided by the invention, a smooth energy transfer path is added, when an automobile is subjected to frontal collision, the collision energy can be effectively absorbed, and the intrusion amount of the front wall is reduced, so that the injury of the automobile collision to passengers is reduced.

Description

Front auxiliary frame of automobile and automobile
Technical Field
The invention relates to the field of automobile chassis, in particular to an automobile front auxiliary frame and an automobile.
Background
With the rapid development of the automobile industry and the continuous improvement of the living standard of people, the demand and the holding amount of automobiles are continuously increased, and the attention degree of people to the comfort and the safety of the automobiles is higher and higher. The front auxiliary frame of the automobile is an important bearing element of an automobile chassis system and is also the largest structural member of an automobile chassis. Automotive front sub-frames are typically arranged in the front compartment of the vehicle for carrying suspension structures such as steering gears, swing arms, stabilizers, engines, etc. Meanwhile, the front auxiliary frame of the automobile needs to alleviate the impact load transmitted to the automobile body from the road surface, and the driving smoothness of the automobile is guaranteed. Therefore, the front subframe not only needs to meet the assembly requirements of all parts, but also needs sufficient strength and rigidity to ensure that the front subframe is not deformed under load input in all directions, so that the integrity of the chassis is improved, the automobile is ensured to have good high-speed driving capability, and the operating stability of the whole automobile is improved.
With the increasing requirements on passive safety of automobiles, the problems of deformation and energy absorption of the automobiles are widely concerned by automobile engineers when collision occurs. The vehicle collision process is a complex transient physical process, which includes complex deformation of a large number of parts and interaction of the parts with each other, and has strong nonlinear characteristics, which makes analysis of the vehicle collision process very complicated. Because the front auxiliary frame of the automobile is a key stressed part, in order to ensure the strength and rigidity of the front auxiliary frame, the existing front auxiliary frame of the automobile is mostly an independent part and is assembled on the whole automobile in a bolt connection mode and the like, the manufacturing cost and the process requirement are increased, and meanwhile, the structure is complex, and the lightweight design of the automobile body is not facilitated; and when the collision takes place, the front auxiliary frame often adopts the form of droing to reduce the injury to personnel in the car, but the power transmission route that is born by the auxiliary frame breaks off, and the requirement that structural strength design such as enclosing before proposed is higher, and the security level promotes the degree of difficulty and increases.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present invention is to provide a front subframe for a vehicle.
The invention is realized by the following technical scheme: the invention provides a front auxiliary frame of an automobile, which comprises a front wall cross beam, two auxiliary frame longitudinal beams and a cooling module mounting beam, wherein the auxiliary frame longitudinal beams are provided with bending guide parts, the direction of the connecting line of the bending guide parts is vertical to the auxiliary frame longitudinal beams, the front wall cross beam and the cooling module mounting beam are arranged in parallel, the auxiliary frame longitudinal beams are arranged between the front wall cross beam and the cooling module mounting beam, and the front wall cross beam, the two auxiliary frame longitudinal beams and the cooling module mounting beam are enclosed to form a frame structure; when the automobile is impacted, the auxiliary frame longitudinal beam can be bent at the position where the bending guide part is arranged, so that energy is absorbed, the front wall intrusion amount is reduced, and the injury of passengers is reduced; preferably, the bending guide portion is provided at an intermediate position of the subframe side member.
Preferably, the bending guide portion is a bending guide hole, and the bending guide hole penetrates through the subframe longitudinal beam.
Further, the front auxiliary frame of the automobile further comprises an auxiliary energy absorption box, and the energy absorption box is arranged between the auxiliary frame longitudinal beam and the cooling module mounting beam.
The energy absorption box comprises an energy absorption box body, and is characterized in that two ends of the energy absorption box body are respectively provided with a fixing part, an energy absorption part is arranged between the two fixing parts, the fixing parts are provided with mounting holes, the fixing parts are used for fixedly mounting the energy absorption box, and the energy absorption parts are used for collapsing and absorbing energy.
Preferably, the crash box is made of a steel type material having a crush characteristic; when the automobile is collided, the energy absorption box can collapse and absorb energy, and the smooth energy transmission path is formed by the bending guide part, so that the intrusion amount of the front wall is reduced.
Furthermore, the auxiliary frame longitudinal beam is provided with a connecting portion at one end connected with the fixing portion, the connecting portion is provided with a bolt hole matched with the fixing portion mounting hole, and the connecting portion is connected with the fixing portion through a fastening piece.
Further, the automobile front subframe further comprises a subframe cross beam, the subframe cross beam is arranged in parallel with the front wall cross beam, the subframe cross beam is arranged between the two subframe longitudinal beams, and preferably, the subframe cross beam comprises a first subframe cross beam and a second subframe cross beam; preferably, the subframe cross beam is arranged between the two subframe longitudinal beams in a welding manner; the auxiliary frame cross beam is used for bearing the automobile front cabin steering gear and the ABS.
Specifically, two swing arm supports are respectively mounted on the two subframe longitudinal beams, and the swing arm supports are arranged on one sides of the subframe longitudinal beams far away from the first subframe cross beam and the second subframe cross beam; more preferably, the bending guide portion is located between two swing arm bracket mounting positions.
Further, sub vehicle frame still includes before enclosing and erects roof beam and bottom girder before the car, before enclose and erect roof beam and bottom girder setting and be in before enclose the tip of crossbeam.
The invention also provides a vehicle, which comprises the vehicle front subframe in the technical scheme.
Due to the technical scheme, the invention has the following beneficial effects:
1) according to the automobile front subframe provided by the invention, the bending guide part is additionally arranged, so that when an automobile is collided, the subframe longitudinal beam can be bent from the opening part of the bending guide part, and the front wall intrusion amount is effectively reduced.
2) According to the automobile front subframe provided by the invention, the bending guide part is matched with the energy absorption box, so that a smooth energy transmission path is added to the whole automobile front subframe, and the automobile front subframe can be collapsed and absorb energy when an automobile collides, so that the injury to passengers is reduced.
3) The automobile front subframe provided by the invention can reduce the weight of an automobile body and process requirements, saves the manufacturing cost and is beneficial to the light weight design of the automobile body.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural view of a preferred embodiment of a front subframe of an automobile according to the present invention;
FIG. 2 is a side view of a preferred embodiment of a front subframe of a vehicle according to the present invention;
FIG. 3 is a schematic exploded view of a preferred embodiment of a front subframe of a vehicle according to the present invention;
in the figure: 1-front wall beam, 2-auxiliary frame longitudinal beam, 3-cooling module mounting beam, 4-energy absorption box, 5-auxiliary frame beam, 51-first auxiliary frame beam, 52-second auxiliary frame beam, 6-swing arm bracket, 7-front wall vertical beam and 8-bottom beam.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Example 1
With reference to fig. 1 to 3, this embodiment provides a front subframe of an automobile, including enclosing crossbeam 1, two subframe longerons 2 and cooling module installation roof beam 3 before, subframe longeron 2 is equipped with the guide portion 21 of bending, the direction of the guide portion 21 line of bending place with subframe longeron 2 is perpendicular, enclose crossbeam 1 before with cooling module installation roof beam 3 parallel arrangement, subframe longeron 2 sets up enclose crossbeam 1 before with between the cooling module installation roof beam 3, enclose crossbeam 1, two subframe longerons 2 before and cooling module installation roof beam 3 encloses and close and form frame construction.
More preferably, the bent guide portion 21 is provided in the middle of the subframe side member 2; when the automobile is collided, the auxiliary frame longitudinal beam 2 can be bent from the position where the bending guide part 21 is opened, so that the invasion amount of the front wall is reduced.
Preferably, the bending guide portion 21 is a bending guide hole that penetrates through the subframe longitudinal beam 2; the bending guide portion 21 may be opened in other ways than the bending guide hole, such as a bending guide groove.
The front auxiliary frame of the automobile further comprises an auxiliary frame cross beam 5, the auxiliary frame cross beam 5 is arranged in parallel with the front wall cross beam 1, the auxiliary frame cross beam 5 is arranged between the two auxiliary frame longitudinal beams 2, and the auxiliary frame cross beam 5 comprises a first auxiliary frame weight 51 and a second auxiliary frame cross beam 52; comparatively preferably, sub vehicle frame crossbeam 5 sets up through welding mode between two sub vehicle frame longerons 2, sub vehicle frame crossbeam 5 is used for bearing car front deck steering gear and ABS, sub vehicle frame crossbeam 5 can also bear other car front deck spare parts, and this place is not repeated everywhere.
Since the first subframe cross member 51 and the second subframe cross member 52 are provided between the two subframe longitudinal members 2 and the bending guide portions 21 are provided in the subframe longitudinal members 2, the first subframe cross member 51 and the second subframe cross member 52 should be set so as to avoid the opening positions of the bending guide portions 21 in order to avoid interference with the operation of the bending guide portions 21.
More preferably, the first sub-frame cross member 51 and the second sub-frame cross member 52 are provided such that the bending guide portion 21 is positioned between the first sub-frame cross member 51 and the second sub-frame cross member 52.
Two swing arm supports 6 are respectively arranged on the two auxiliary frame longitudinal beams 2, and the swing arm supports 6 are arranged on one sides, far away from the first auxiliary frame cross beam 51 and the second auxiliary frame cross beam 52, of the auxiliary frame longitudinal beams 2; similarly, the mounting position of the swing arm bracket 6 should be kept away from the opening position of the bending guide portion 21, so that the bending guide portion 21 is disposed between two swing arm brackets 6 on the same subframe cross beam 2.
The automobile front subframe further comprises a front wall vertical beam 7 and a bottom crossbeam 8, and the front wall vertical beam 7 and the bottom crossbeam 8 are welded at the far end of the front wall crossbeam 1; thereby realize the fixed connection of sub vehicle frame and automobile body before the car.
Example 2
With reference to fig. 1 to 3, the present embodiment provides a front subframe of an automobile, including a front wall cross beam 1, two subframe longitudinal beams 2 and a cooling module mounting beam 3, and is characterized in that the subframe longitudinal beams 2 are provided with bending guide portions 21, a connection line of the bending guide portions 21 is perpendicular to the subframe longitudinal beams 2, the front wall cross beam 1 and the cooling module mounting beam 3 are arranged in parallel, the subframe longitudinal beams 2 are arranged between the front wall cross beam 1 and the cooling module mounting beam 3, and the front wall cross beam 1, the two subframe longitudinal beams 2 and the cooling module mounting beam 3 are enclosed to form a frame structure; preferably, the bent guide portion 21 is provided in the middle of the subframe side member 2; when the automobile is collided, the auxiliary frame longitudinal beam 2 can be bent from the position where the bending guide part 21 is opened, so that the invasion amount of the front wall is reduced.
Preferably, the bending guide portion 21 is a bending guide hole that penetrates through the subframe longitudinal beam 2; the bending guide portion 21 may also be provided in other ways, such as a bending guide groove, a bending guide slit, etc., and the bending guide portion 21 does not affect the rigidity and strength of the subframe longitudinal beam 2 during normal driving.
In this embodiment, the front subframe of the automobile further comprises a secondary energy absorption box 4, and the energy absorption box 4 is arranged between the subframe longitudinal beam 2 and the cooling module mounting beam 3.
The energy absorption box is characterized in that two ends of the energy absorption box 4 are respectively provided with a fixing part, an energy absorption part is arranged between the two fixing parts, the fixing parts are provided with mounting holes, the fixing parts at the two ends are used for fixedly mounting the energy absorption box 4, and the energy absorption part is used for collapsing and absorbing energy; and the fixed parts at two ends of the energy absorption box 4 are respectively used for being fixedly connected with the auxiliary frame longitudinal beam 2 and the cooling module mounting beam 3.
Preferably, the crash box 4 is made of a steel type material having a collapsing property; when an automobile is collided, the energy-absorbing box 4 and the bending guide part 21 form a smooth energy transmission path, and the energy-absorbing box 4 can absorb energy and collapse, so that the invasion amount of the front wall is further reduced, and the injury of the automobile collision to passengers is reduced; and the impact on other components of the front auxiliary frame of the automobile in collision can be reduced.
The auxiliary frame longitudinal beam 2 is characterized in that a connecting portion is arranged at one end connected with the fixing portion, the connecting portion is provided with a bolt hole matched with the mounting hole, and the connecting portion and the fixing portion are connected through a fastening piece.
Because the connecting part and the fixing part are connected through a fastener, the energy absorption box 4 can be detached and replaced in time.
The front auxiliary frame of the automobile further comprises an auxiliary frame cross beam 5, the auxiliary frame cross beam 5 is arranged in parallel with the front wall cross beam 1, the auxiliary frame cross beam 5 is arranged between the two auxiliary frame longitudinal beams 2, and the auxiliary frame cross beam 5 comprises a first auxiliary frame cross beam 51 and a second auxiliary frame cross beam 52; preferably, the auxiliary frame cross beam 5 is arranged between the two auxiliary frame longitudinal beams 2 in a welding mode, in addition, the auxiliary frame cross beam 5 can also be arranged between the two auxiliary frame longitudinal beams 2 in other fixed connection modes, and the auxiliary frame cross beam 5 is used for bearing an automobile front cabin steering gear and an ABS (anti-lock brake system) and other automobile front cabin parts.
Preferably, in order to avoid interference with smooth operation of the bending guide 21, the first subframe cross member 51 and the second subframe cross member 52 are disposed so as to avoid an opening position of the bending guide 21.
More preferably, the first sub-frame cross member 51 and the second sub-frame cross member 52 are provided such that the bending guide portion 21 is positioned between the first sub-frame cross member 51 and the second sub-frame cross member 52.
Two swing arm supports 6 are respectively arranged on the two auxiliary frame longitudinal beams 2, and the swing arm supports 6 are arranged on one sides, far away from the first auxiliary frame cross beam 51 and the second auxiliary frame cross beam 52, of the auxiliary frame longitudinal beams 2; similarly, the mounting position of the swing arm bracket 6 should be kept away from the opening position of the bending guide portion 21, so that the bending guide portion 21 is disposed between two swing arm brackets 6 on the same subframe cross beam 2.
Before the car sub vehicle frame still including enclose preceding perpendicular roof beam 7 and bottom girder 8, enclose preceding perpendicular roof beam 7 and the welding of bottom girder 8 and enclose the tip of crossbeam 1 before, thereby realize the sub vehicle frame is connected with the fixed connection of automobile body before the car.
The difference between the embodiment and the embodiment 1 is that in the embodiment, the crash box 4 is additionally arranged on the basis of the bending guide portion 21, so that the whole vehicle obtains a smooth energy transmission path, the rigidity of the front wall front portion is enhanced, the front wall intrusion amount is reduced, and the injury of the vehicle collision to passengers is reduced.
Example 3
The embodiment provides an automobile, which is characterized by comprising the automobile front subframe in the technical scheme; the direction of the front wall cross beam 1 is vertical to the axis direction of the vehicle body.
The foregoing description has disclosed fully preferred embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the appended claims. Accordingly, the scope of the appended claims is not to be limited to the specific embodiments described above.

Claims (7)

1. An automobile front auxiliary frame comprises a front wall cross beam (1), two auxiliary frame longitudinal beams (2), an energy absorption box and a cooling module mounting beam (3), it is characterized in that the auxiliary frame longitudinal beam (2) is provided with a bending guide part (21), the bending guide part (21) is arranged between the front wall cross beam (1) and the cooling module mounting beam (3) and the direction of a connecting line is vertical to the auxiliary frame longitudinal beam (2), the cooling module mounting beam (3) is arranged in parallel with the front wall beam (1), the energy absorption box (4) is arranged between the auxiliary frame longitudinal beam (2) and the cooling module mounting beam (3), the subframe longitudinal beam (2) is arranged between the front wall cross beam (1) and the cooling module mounting beam (3), the front wall cross beam (1), the two auxiliary frame longitudinal beams (2) and the cooling module mounting beam (3) are enclosed to form a frame structure;
the automobile front auxiliary frame further comprises a front wall vertical beam (7) and a bottom crossbeam (8), wherein the front wall vertical beam (7) and the bottom crossbeam (8) are welded at the end part of the front wall crossbeam (1);
two swing arm supports (6) are respectively installed on the two auxiliary frame longitudinal beams (2), and the swing arm supports (6) are arranged on one sides, far away from the first auxiliary frame cross beam (51) and the second auxiliary frame cross beam (52), of the auxiliary frame longitudinal beams (2); the bending guide parts (21) on the two auxiliary frame longitudinal beams (2) are located between the two swing arm brackets (6).
2. The vehicle front subframe of claim 1 wherein said bend guides (21) are bend guide holes that extend through said subframe rails (2).
3. The automotive front subframe of claim 1, wherein the two ends of the energy absorption box (4) are provided with fixing portions, an energy absorption portion is arranged between the two fixing portions, the fixing portions are provided with mounting holes, the fixing portions (41) are used for fixedly mounting the energy absorption box (4), and the energy absorption portion is used for absorbing energy in a collapsing manner.
4. The vehicle front subframe of claim 1 wherein said crash boxes (4) are made of steel type material having crush characteristics.
5. The front subframe of claim 3 wherein the subframe longitudinal member (2) has a connecting portion at an end thereof connected to the fixing portion, the connecting portion having a bolt hole fitted to the fixing portion mounting hole, and the connecting portion and the fixing portion are connected by a fastener.
6. A front sub-frame for a vehicle according to claim 1, characterised in that it further comprises a sub-frame cross member (5), said sub-frame cross member (5) being arranged in parallel with said front wall cross member (1), said sub-frame cross member (5) being arranged between said two sub-frame longitudinal members (2), said sub-frame cross member (5) comprising a first sub-frame cross member (51) and a second sub-frame cross member (52).
7. An automobile comprising a front subframe according to any one of claims 1 to 6.
CN201910233541.1A 2019-03-26 2019-03-26 Front auxiliary frame of automobile and automobile Active CN111746650B (en)

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CN111746650B true CN111746650B (en) 2022-04-12

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112549936B (en) * 2020-12-22 2022-05-06 浙江零跑科技股份有限公司 Electric motor car cooling module arranges and mounting structure

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Publication number Priority date Publication date Assignee Title
CN201737054U (en) * 2010-06-18 2011-02-09 中国第一汽车集团公司 Collapsing absorbing energy type auxiliary frame
CN202879598U (en) * 2012-09-17 2013-04-17 上海汽车集团股份有限公司 Sheet-tailor-welded cavity truss-type auxiliary carframe with crash safety function
CN103171628A (en) * 2013-03-21 2013-06-26 奇瑞汽车股份有限公司 Energy-absorbing type front subframe
CN106476893A (en) * 2015-08-27 2017-03-08 北京长城华冠汽车科技股份有限公司 The front housing assembly of automobile and its automobile
CN206781881U (en) * 2017-05-19 2017-12-22 微宏动力系统(湖州)有限公司 A kind of lightweight white body

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107054467A (en) * 2017-03-31 2017-08-18 奇瑞汽车股份有限公司 A kind of vehicle subframe
CN109131577A (en) * 2018-09-21 2019-01-04 吉利汽车研究院(宁波)有限公司 Front rail structure and subframe assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201737054U (en) * 2010-06-18 2011-02-09 中国第一汽车集团公司 Collapsing absorbing energy type auxiliary frame
CN202879598U (en) * 2012-09-17 2013-04-17 上海汽车集团股份有限公司 Sheet-tailor-welded cavity truss-type auxiliary carframe with crash safety function
CN103171628A (en) * 2013-03-21 2013-06-26 奇瑞汽车股份有限公司 Energy-absorbing type front subframe
CN106476893A (en) * 2015-08-27 2017-03-08 北京长城华冠汽车科技股份有限公司 The front housing assembly of automobile and its automobile
CN206781881U (en) * 2017-05-19 2017-12-22 微宏动力系统(湖州)有限公司 A kind of lightweight white body

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Effective date of registration: 20230803

Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District

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