阅读说明：本技术 一种电机悬置系统、定位支撑结构及车辆 (Motor suspension system, positioning support structure and vehicle ) 是由 林俊 陈子轩 付斌 于 2021-08-31 设计创作，主要内容包括：本发明涉及一种电机悬置系统、定位支撑结构及车辆,其包括：电机总成；悬置支架,其与所述电机总成固定,所述悬置支架具有第一定位结构和支撑凸起,所述支撑凸起与所述第一定位结构设置于所述悬置支架的同一侧；用于与副车架固定的衬套,其具有第二定位结构,所述第二定位结构与所述第一定位结构配合定位,所述衬套还具有支撑所述支撑凸起的支撑面。本发明涉及的一种电机悬置系统、定位支撑结构及车辆,第一定位结构能够与第二定位结构配合定位,且支撑凸起能够支撑于支撑面上,在电机总成与副车架合装时,悬置支架与衬套的配合为电机总成起到定位支撑的作用,为合装提供便利,且减少电机总成的定位支撑工装的数量,节省一定的费用和装配工时。(The invention relates to a motor suspension system, a positioning support structure and a vehicle, comprising: a motor assembly; the suspension bracket is fixed with the motor assembly and is provided with a first positioning structure and a supporting bulge, and the supporting bulge and the first positioning structure are arranged on the same side of the suspension bracket; the bushing is used for being fixed with the auxiliary frame and is provided with a second positioning structure, the second positioning structure is matched and positioned with the first positioning structure, and the bushing is also provided with a supporting surface for supporting the supporting protrusion. According to the motor suspension system, the positioning support structure and the vehicle, the first positioning structure can be matched with the second positioning structure for positioning, the support protrusion can be supported on the support surface, when the motor assembly and the auxiliary frame are assembled, the suspension bracket is matched with the bush to play a role of positioning and supporting the motor assembly, convenience is provided for assembly, the number of positioning support tools of the motor assembly is reduced, and certain cost and assembly time are saved.)

1. A motor suspension system, comprising:

a motor assembly;

the suspension bracket (1) is fixed with the motor assembly, the suspension bracket (1) is provided with a first positioning structure (11) and a supporting protrusion (12), and the supporting protrusion (12) and the first positioning structure (11) are arranged on the same side of the suspension bracket (1);

the bushing (2) is used for being fixed with the auxiliary frame and provided with a second positioning structure (21), the second positioning structure (21) is matched and positioned with the first positioning structure (11), and the bushing (2) is further provided with a supporting surface (22) for supporting the supporting bulge (12).

2. The motor suspension system of claim 1 wherein:

the motor assembly is provided with a first mounting point, a second mounting point and a third mounting point, the connecting line of the first mounting point, the second mounting point and the third mounting point forms a triangle,

suspension support (1) is equipped with threely, and corresponds respectively to be fixed in first mounting point the second mounting point with the third mounting point is located first mounting point with the second mounting point suspension support (1) is right the motor assembly carries out X to the location, is located the third mounting point suspension support (1) is right the motor assembly carries out Y to the location.

3. The motor suspension system of claim 2, wherein:

the first positioning structure (11) is a groove, and the second positioning structure (21) is a protrusion matched with the first positioning structure (11).

4. The motor suspension system of claim 3 wherein:

the first positioning structure (11) is formed by being sunken from the bottom of the supporting bulge (12) towards the direction far away from the lining (2), so that the first positioning structure (11) is positioned inside the supporting bulge (12).

5. The motor suspension system of claim 3 wherein:

a vertical mounting surface (13) is arranged on one side, close to the bushing (2), of the suspension bracket (1), the first positioning structure (11) and the supporting protrusion (12) are arranged on the vertical mounting surface (13), and extend downwards from the bottom of the vertical mounting surface (13) and obliquely towards the direction far away from the bushing (2) to form a first inclined surface (14);

one side, close to the suspension bracket (1), of the second positioning structure (21) is provided with a second inclined surface (211) matched with the first inclined surface (14), and the second inclined surface (211) is arranged in parallel with the first inclined surface (14).

6. The motor suspension system of claim 2, wherein:

the first positioning structure (11) is a protrusion, and the second positioning structure (21) is a groove matched with the first positioning structure (11).

7. The motor suspension system of claim 6 wherein:

the first positioning structure (11) is formed by protruding downwards from the bottom surface of the supporting bulge (12);

the liner (2) has an inner core (23), the upper surface of the inner core (23) forms the support surface (22), and the second positioning structure (21) is formed recessed from the support surface (22) toward the inside of the inner core (23).

8. The motor suspension system of claim 2, wherein:

the first positioning structure (11) is provided with two first limiting surfaces (111) which are symmetrically arranged about the axis of the first positioning structure, and the two first limiting surfaces (111) gradually extend towards the direction far away from the axis of the first positioning structure (11) from top to bottom in an inclined mode;

the second positioning structure (21) is provided with a second limiting surface (212) corresponding to the first limiting surface (111), and the second limiting surface (212) is parallel to the first limiting surface (111);

the two first limiting surfaces (111) positioned at the first mounting point are arranged along the X direction; the two first limiting surfaces (111) positioned at the second mounting point are arranged along the X direction; the two first limiting surfaces (111) at the third mounting point are arranged along the Y direction.

9. A positioning and supporting structure of a motor suspension system is characterized by comprising:

the suspension bracket (1) is used for being fixed with a motor assembly and is provided with a first positioning structure (11) and a supporting bulge (12), and the supporting bulge (12) and the first positioning structure (11) are arranged on the same side of the suspension bracket (1);

the bushing (2) is used for being fixed with the auxiliary frame and provided with a second positioning structure (21), the second positioning structure (21) is matched and positioned with the first positioning structure (11), and the bushing (2) is further provided with a supporting surface (22) for supporting the supporting bulge (12).

10. A vehicle comprising the motor suspension system of claim 1.

Technical Field

The invention relates to the technical field of motor suspension, in particular to a motor suspension system, a positioning support structure and a vehicle.

Background

With the increasing requirements of people on the environment, the new energy electric vehicle is more and more popular, and in order to pursue control and comfort, the new energy electric vehicle is connected with a vehicle body and a power assembly through a suspension system.

In the related art, when a motor assembly of a new energy electric vehicle is connected with an auxiliary frame, a special tool is generally needed to support and position the motor assembly and the auxiliary frame, so that the position relation between the motor assembly and the auxiliary frame is ensured to be within a design range, and then the motor assembly and the auxiliary frame are connected through a suspension system; however, the craft personnel need to design a special motor assembly positioning tool to meet the process assembly requirements, and the design cost is increased.

Therefore, there is a need for a new motor suspension system to overcome the above problems.

Disclosure of Invention

The embodiment of the invention provides a motor suspension system, a positioning support structure and a vehicle, and aims to solve the problems that a process worker needs to design a special motor assembly positioning tool to meet the process assembly requirement and increase the design cost in the related art.

In a first aspect, a motor suspension system is provided, which includes: a motor assembly; the suspension bracket is fixed with the motor assembly and is provided with a first positioning structure and a supporting bulge, and the supporting bulge and the first positioning structure are arranged on the same side of the suspension bracket; the bushing is used for being fixed with the auxiliary frame and is provided with a second positioning structure, the second positioning structure is matched and positioned with the first positioning structure, and the bushing is also provided with a supporting surface for supporting the supporting protrusion.

In some embodiments, the motor assembly has a first mounting point, a second mounting point and a third mounting point, a connecting line of the first mounting point, the second mounting point and the third mounting point forms a triangle, three suspension brackets are provided and are respectively fixed to the first mounting point, the second mounting point and the third mounting point, the suspension brackets located at the first mounting point and the second mounting point perform X-direction positioning on the motor assembly, and the suspension bracket located at the third mounting point performs Y-direction positioning on the motor assembly.

In some embodiments, the first locating feature is a groove and the second locating feature is a protrusion that mates with the first locating feature.

In some embodiments, the first positioning structure is formed by being recessed from the bottom of the supporting protrusion toward a direction away from the bushing, so that the first positioning structure is located inside the supporting protrusion.

In some embodiments, a side of the suspension bracket close to the bushing is provided with a vertical mounting surface, the first positioning structure and the supporting protrusion are arranged on the vertical mounting surface, and extend downwards from the bottom of the vertical mounting surface and obliquely towards a direction far away from the bushing to form a first inclined surface; one side of the second positioning structure, which is close to the suspension bracket, is provided with a second inclined plane matched with the first inclined plane, and the second inclined plane and the first inclined plane are arranged in parallel.

In some embodiments, the first locating feature is a protrusion and the second locating feature is a recess that mates with the first locating feature.

In some embodiments, the first positioning structure protrudes downward from the bottom surface of the supporting protrusion; the bushing has an inner core with an upper surface forming the support surface and the second locating feature is formed recessed from the support surface toward an interior of the inner core.

In some embodiments, the first positioning structure has two first limiting surfaces which are symmetrically arranged about the axis of the first positioning structure, and the two first limiting surfaces gradually extend obliquely from top to bottom in a direction away from the axis of the first positioning structure; the second positioning structure is provided with a second limiting surface corresponding to the first limiting surface, and the second limiting surface is parallel to the first limiting surface; the two first limiting surfaces positioned at the first mounting point are arranged along the X direction; the two first limiting surfaces positioned at the second mounting point are arranged along the X direction; the two first limiting surfaces positioned at the third mounting point are arranged along the Y direction.

In a second aspect, there is provided a positioning support structure of a motor suspension system, comprising: the suspension bracket is used for being fixed with the motor assembly and is provided with a first positioning structure and a supporting bulge, and the supporting bulge and the first positioning structure are arranged on the same side of the suspension bracket; the bushing is used for being fixed with the auxiliary frame and is provided with a second positioning structure, the second positioning structure is matched and positioned with the first positioning structure, and the bushing is also provided with a supporting surface for supporting the supporting protrusion.

In a third aspect, a vehicle is provided that includes the motor suspension system described above.

The technical scheme provided by the invention has the beneficial effects that:

the embodiment of the invention provides a motor suspension system, a positioning and supporting structure and a vehicle, wherein in the process of mounting a motor assembly and a suspension bracket to a bushing together, a first positioning structure on the suspension bracket can be matched with a second positioning structure on the bushing for positioning, and a supporting bulge on the suspension bracket can be supported on a supporting surface of the bushing, so that when the motor assembly and an auxiliary frame are combined, the matching of the suspension bracket and the bushing can play a role in positioning and supporting the motor assembly, convenience is provided for combination, meanwhile, the number of positioning and supporting tools of the motor assembly can be reduced, and certain cost and assembly time are saved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a distribution structure of a suspension bracket and a bushing of a motor suspension system according to an embodiment of the present invention;

fig. 2 is a schematic view of a matching structure of a suspension bracket and a bushing of a motor suspension system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a suspension bracket of a motor suspension system according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another view angle of a suspension bracket of a motor suspension system according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a bushing of a motor suspension system according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another view of a bushing of a motor suspension system according to an embodiment of the present invention.

In the figure:

1. a suspension bracket; 11. a first positioning structure; 111. a first limiting surface; 12. a support boss; 13. a vertical mounting surface; 14. a first inclined plane;

2. a bushing; 21. a second positioning structure; 211. a second inclined plane; 212. a second limiting surface; 22. a support surface; 23. an inner core.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.

The embodiment of the invention provides a positioning and supporting structure of a motor suspension system, which can solve the problems that a process worker needs to design a special motor assembly positioning tool to meet the process assembly requirement and increase the design cost in the related art.

Referring to fig. 1 and 2, a motor suspension system provided for an embodiment of the present invention may include: a motor assembly; the suspension bracket 1 is fixed with the motor assembly, in this embodiment, the suspension bracket 1 is fastened with the motor assembly through bolts, in other embodiments, the suspension bracket 1 may also be fixed with the motor assembly by welding in other manners or fixed in a detachable manner, the suspension bracket 1 may have a first positioning structure 11 and a supporting protrusion 12, the supporting protrusion 12 and the first positioning structure 11 are disposed on the same side of the suspension bracket 1, in this embodiment, the supporting protrusion 12 is disposed on one side of the first positioning structure 11 away from the motor assembly; and the bush 2 used for fixing with the subframe, that is, during the specific installation, the suspension bracket 1 and the motor assembly can be fixed first, and the bush 2 and the subframe can be fixed, in this embodiment, it is preferable to press-fit the bush 2 and the subframe together, and then the motor assembly and the suspension bracket 1 are installed on the bush 2 together; the bushing 2 may have a second positioning structure 21, the second positioning structure 21 is positioned in cooperation with the first positioning structure 11, the bushing 2 further has a supporting surface 22 for supporting the supporting protrusion 12, that is, the first positioning structure 11 may cooperate with the second positioning structure 21 to position the suspension bracket 1 in the process of mounting the suspension bracket 1 to the bushing 2, since the suspension bracket 1 is fixed to the motor assembly, the motor assembly may also be positioned, and after the suspension bracket 1 is placed on the bushing 2, the supporting protrusion 12 may be supported on the supporting surface 22 of the bushing 2 to upwardly support the suspension bracket 1 and further support the motor assembly, in the process of mounting the motor assembly to the subframe, there is no need to provide a separate positioning and supporting tool to position and support the motor assembly, the suspension bracket 1 and the bushing 2 may realize positioning and supporting for the motor assembly by themselves, the motor assembly and the auxiliary frame are combined together to provide great convenience, the scheme is simple and practical, and meanwhile, the number of positioning support tools of the motor assembly can be reduced, and cost and assembly time are saved.

Referring to fig. 1 and 2, in some embodiments, the motor assembly may have a first mounting point, a second mounting point, and a third mounting point, where a line connecting the first mounting point, the second mounting point, and the third mounting point forms a triangle, in this embodiment, the first mounting point and the second mounting point are respectively disposed at left and right sides of the motor assembly, the third mounting point may be disposed at a rear side of the motor assembly, three suspension brackets 1 are disposed and respectively fixed to the first mounting point, the second mounting point, and the third mounting point, in this embodiment, with a length direction of a vehicle being an X direction, a width direction of the vehicle being a Y direction, a height direction of the vehicle being a Z direction, the suspension bracket 1 at the first mounting point may perform X-direction positioning on the motor assembly, and the suspension bracket 1 at the second mounting point may also perform X-direction positioning on the motor assembly, that is to say, in the process of mounting the motor assembly to the subframe, the suspension brackets 1 located on the left and right sides are matched with the bush 2, so that displacement of the motor assembly in the X direction can be limited, the suspension bracket 1 located on the third mounting point positions the motor assembly in the Y direction, and further displacement of the motor assembly in the Y direction is limited, and as the first mounting point, the second mounting point and the third mounting point are respectively located in different directions of the motor assembly, positioning in multiple different directions such as the X direction and the Y direction can be realized in the process of downward moving and mounting of the motor assembly; in this embodiment, three bushings 2 are also provided corresponding to the suspension brackets 1, and in other embodiments, the suspension brackets 1 may be provided as a whole, or two suspension brackets 1 may be provided on the left and right.

Referring to fig. 2 to 4, in some alternative embodiments, the first positioning structure 11 may be a groove, where the structural shape of the groove is not limited, and may be a trapezoid, a square, or the like, the second positioning structure 21 is a protrusion that is matched with the first positioning structure 11, that is, the shape of the second positioning structure 21 is complementary to the shape of the first positioning structure 11, and the positioning function is achieved by providing a groove and a protrusion structure with simple structures, so that the first positioning structure 11 may be directly disposed in the suspension bracket 1, and the second positioning structure 21 may be directly disposed on the bushing 2, and there is no need to provide a positioning device other than the suspension bracket 1 and the bushing 2 for positioning, so that the structural scheme of the whole motor suspension system is simple and practical.

Referring to fig. 2 to 4, in some embodiments, the first positioning structure 11 may be formed by being recessed from the bottom of the supporting protrusion 12 toward a direction away from the bushing 2, in this embodiment, the suspension bracket 1 is installed from top to bottom, and the first positioning structure 11 is formed by being recessed from the bottom of the supporting protrusion 12, so that the first positioning structure 11 is located inside the supporting protrusion 12, that is, the first positioning structure 11 is formed in the supporting protrusion 12, and the first positioning structure 11 overlaps the supporting protrusion 12, so that the space occupied by the first positioning structure 11 and the supporting protrusion 12 on the suspension bracket 1 is minimized, in this embodiment, the central axis of the first positioning structure 11 coincides with the central axis of the supporting protrusion 12, and in other embodiments, the first positioning structure 11 may also be spaced apart from the supporting protrusion 12.

Referring to fig. 2 to 4, in some alternative embodiments, a side of the suspension bracket 1 close to the bushing 2 is provided with a vertical mounting surface 13, the first positioning structure 11 and the supporting protrusion 12 are disposed on the vertical mounting surface 13, specifically, in this embodiment, the supporting protrusion 12 is formed to protrude from the vertical mounting surface 13 toward a direction close to the bushing 2, so that the supporting protrusion 12 and the first positioning structure 11 are in matched and butt joint with the bushing 2 at the vertical mounting surface 13, and extend obliquely downwards from the bottom of the vertical mounting surface 13 and in a direction away from the bushing 2 to form a first inclined surface 14, that is, the vertical mounting surface 13 is located at an upper portion of the suspension bracket 1, and the first inclined surface 14 is located at a lower portion of the suspension bracket 1; one side of the second positioning structure 21 close to the suspension bracket 1 is provided with a second inclined surface 211 matched with the first inclined surface 14, the second inclined surface 211 is parallel to the first inclined surface 14, that is, the second inclined surface 211 extends downwards and obliquely towards the direction close to the suspension bracket 1, so that the suspension bracket 1 can move downwards along the second inclined surface 211 in the process of being mounted to the bushing 2 from top to bottom, the first inclined surface 14 can guide in the Z direction, and then the first positioning structure 11 is guided into the position of the second positioning structure 21, thereby facilitating the combination of the motor assembly and the auxiliary frame.

Referring to fig. 3, 5 and 6, in some embodiments, the first positioning structure 11 is a protrusion, and the second positioning structure 21 is a groove matched with the first positioning structure 11, where the structural shape of the groove is not limited, and may be trapezoidal, square, etc., that is, the shape of the second positioning structure 21 is complementary to the shape of the first positioning structure 11, and this embodiment also implements the positioning function by providing a groove and a protrusion structure with a simple structure, and does not need to provide a positioning device other than the suspension bracket 1 and the bushing 2 for positioning, so that the structural scheme of the entire motor suspension system is simple and practical.

Referring to fig. 3, 5 and 6, in some alternative embodiments, the first positioning structure 11 may be formed to protrude downward from the bottom surface of the supporting protrusion 12, such that the first positioning structure 11 and the supporting protrusion 12 are formed as a single body; the bushing 2 is provided with an inner core 23, the upper surface of the inner core 23 forms the supporting surface 22, in this embodiment, the outer side of the inner core 23 is coated with an outer sleeve, the inner core 23 protrudes out of the end surface of the outer sleeve towards the direction close to the suspension bracket 1, and the supporting surface 22 is arranged at the position of the outer sleeve protruding out of the inner core 23, so that the supporting protrusion 12 can gradually fall onto the supporting surface 22 from top to bottom without being blocked by the outer sleeve, and the second positioning structure 21 is formed by recessing the supporting surface 22 towards the inner core 23, that is, the positioning and supporting functions of the motor assembly can be realized by digging a groove on the inner core 23 on the basis of the bushing 2.

Referring to fig. 3 and 5, in some embodiments, the first positioning structure 11 may have two first limiting surfaces 111 symmetrically arranged about an axis thereof, and the two first limiting surfaces 111 gradually extend from top to bottom in an inclined manner in a direction away from the axis of the first positioning structure 11, that is, the first limiting surfaces 111 are arranged in an inclined manner in a vertical direction; the second positioning structure 21 has a second limiting surface 212 corresponding to the first limiting surface 111, the second limiting surface 212 is parallel to the first limiting surface 111, that is, in the process of mounting and positioning, the first limiting surface 111 is matched with the second limiting surface 212, and the second limiting surface 212 is also arranged obliquely in the vertical direction; the two first limiting surfaces 111 at the first mounting point are arranged along the X direction, that is, one first limiting surface 111 is located in front, and the other first limiting surface 111 is located in back; the two first limiting surfaces 111 at the second mounting point are arranged along the X direction, that is, one first limiting surface 111 is located in front, and the other first limiting surface 111 is located in back; two first limiting surfaces 111 located at the third mounting point are arranged along the Y direction, one first limiting surface 111 is located on the left side, and the other first limiting surface 111 is located on the right side, in this embodiment, each of the first positioning structures 11 and the second positioning structures 21 is preferably trapezoidal, in the process of vertically adapting the first positioning structure 11 and the second positioning structure 21, the inclined limiting surfaces can have a guiding function, so that the first positioning structure 11 and the second positioning structure 21 can be conveniently assembled in a butt joint manner, the sizes of the first positioning structure 11 and the second positioning structure 21 can be as close as possible to be equal, and the relative displacement caused by the existence of gaps after the first positioning structure 11 and the second positioning structure 21 are adapted is avoided.

The embodiment of the invention also provides a positioning and supporting structure of the motor suspension system, which can comprise: the suspension bracket 1 is used for being fixed with a motor assembly, in the embodiment, the suspension bracket 1 is fastened with the motor assembly through bolts, in other embodiments, the suspension bracket 1 can be welded and fixed with the motor assembly in other modes or fixed in a detachable mode, the suspension bracket 1 can be provided with a first positioning structure 11 and a supporting protrusion 12, the supporting protrusion 12 and the first positioning structure 11 are arranged on the same side of the suspension bracket 1, and in the embodiment, the supporting protrusion 12 is arranged on one side, far away from the motor assembly, of the first positioning structure 11; and the bush 2 used for fixing with the subframe, that is, during the specific installation, the suspension bracket 1 and the motor assembly can be fixed first, and the bush 2 and the subframe can be fixed, in this embodiment, it is preferable to press-fit the bush 2 and the subframe together, and then the motor assembly and the suspension bracket 1 are installed on the bush 2 together; the bushing 2 can have a second positioning structure 21, the second positioning structure 21 is positioned in cooperation with the first positioning structure 11, and the bushing 2 further has a supporting surface 22 for supporting the supporting protrusion 12, that is, the suspension bracket 1 can be installed on the bushing 2, the first positioning structure 11 can be matched with the second positioning structure 21 to position the suspension bracket 1, and the suspension bracket 1 is fixed to the motor assembly and can also be positioned on the motor assembly, and after the suspension bracket 1 is placed on the bushing 2, the supporting protrusion 12 can be supported on the supporting surface 22 of the bushing 2 to support the suspension bracket 1 upwards and further support the motor assembly, and in the process of installing the motor assembly on the auxiliary frame, a separate positioning and supporting tool is not needed to be arranged to position and support the motor assembly.

The first positioning structure 11 and the second positioning structure 21 may adopt the first positioning structure 11 and the second positioning structure 21 in any embodiment of the motor suspension system, which is not described herein again.

The embodiment of the invention also provides a vehicle which can comprise a frame and the motor suspension system in any embodiment, wherein the motor suspension system can be arranged on the frame. The installation sequence may be: the three suspension supports 1 are fixed with the motor assembly through bolts, meanwhile, the three bushings 2 can be pressed in corresponding positions of the auxiliary frame, then the suspension supports 1 and the motor assembly are integrally installed on the auxiliary frame, namely the suspension supports 1 and the bushings 2 are installed in a matched mode, and finally the motor assembly and the auxiliary frame are integrally installed on the frame after being assembled.

The principles of the motor suspension system, the positioning support structure and the vehicle provided by the embodiment of the invention are as follows:

because the suspension bracket 1 is fixed with the motor assembly in advance, the bush 2 is fixed with the auxiliary frame in advance, the positioning and supporting in the process of the dark rotation of the motor assembly to the auxiliary frame can be realized through the matching of the suspension bracket 1 and the bush 2, specifically, in the process of mounting the motor assembly and the suspension bracket 1 to the bush 2, the first positioning structure 11 on the suspension bracket 1 can be matched and positioned with the second positioning structure 21 on the bush 2, the position relation between the motor assembly and the auxiliary frame is ensured within the design range, the supporting bulge 12 on the suspension bracket 1 can be supported on the supporting surface 22 of the bush 2 to support the motor assembly, when the motor assembly and the auxiliary frame are combined, the matching of the suspension bracket 1 and the bush 2 can play a role of positioning and supporting for the motor assembly, thereby not only meeting the function of a conventional suspension system, the motor assembly positioning device has the advantages that the positioning support is also taken into consideration, convenience is provided for combination, meanwhile, the motor assembly positioning tool special for process personnel is not needed to be designed to meet the process assembly requirements, the number of the motor assembly positioning support tools can be reduced, and certain cost and assembly time are saved.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.