CN213261937U - Rear suspension support for electric automobile and power assembly suspension system - Google Patents
Rear suspension support for electric automobile and power assembly suspension system Download PDFInfo
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- CN213261937U CN213261937U CN202021707649.4U CN202021707649U CN213261937U CN 213261937 U CN213261937 U CN 213261937U CN 202021707649 U CN202021707649 U CN 202021707649U CN 213261937 U CN213261937 U CN 213261937U
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- rear suspension
- power assembly
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- installation
- bracket
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Abstract
The application discloses rear suspension support for electric automobile, it includes: a rear suspension bracket body; the power assembly bracket mounting part is connected to the rear suspension bracket body and used for mounting a power assembly bracket; the rear suspension mounting part is connected to the rear suspension bracket body and used for mounting a rear suspension; the power assembly installation department, connect in be used for installing the power assembly on the back suspension support body, the power assembly installation department with the crossing setting of installation direction of back suspension installation department, the power assembly installation department is located including installation sleeve, cover the installation bush in the installation sleeve outside and being located the installation sleeve with first vibration isolation rubber between the installation bush. This application discloses a power assembly suspension system simultaneously, and this application has solved the unreasonable sub vehicle frame structure complicacy that leads to of current power assembly suspension system spare part design, problem that intensity weakens.
Description
Technical Field
The application relates to the field of design and manufacture of electric automobiles, in particular to a rear suspension support and a power assembly suspension system for an electric automobile.
Background
In recent years, electric vehicles are favored by consumers due to energy conservation and environmental protection. In pure electric vehicles research and development process, some motorcycle types need to vulcanize the suspension bush of electric vehicles and press-fit to the sub vehicle frame, in order to guarantee that the suspension bush can support the total mass of motor and engine, guarantee the vibration isolation performance of suspension bush simultaneously, generally all select the suspension bush of great diameter, just so need open three great hole on the sub vehicle frame to need install a plurality of bush alone at sub vehicle frame and automobile body junction and guarantee to form the second grade vibration isolation between power assembly and the automobile body. This conventional approach not only results in a complex subframe structure, but also further results in a certain weakening of the subframe structural strength.
SUMMERY OF THE UTILITY MODEL
The technical problem that this application will be solved is that the design of the suspension system spare part of current power assembly unreasonable leads to sub vehicle frame structure complicated, the problem that intensity weakens, for this reason, this application has proposed a rear suspension support and rear suspension system for electric automobile.
In view of the above technical problems, the present application provides the following technical solutions:
a rear suspension bracket for an electric vehicle, comprising: a rear suspension bracket body; the power assembly bracket mounting part is connected to the rear suspension bracket body and used for mounting a power assembly bracket; the rear suspension mounting part is connected to the rear suspension bracket body and used for mounting a rear suspension; the power assembly installation department, connect in be used for installing the power assembly on the back suspension support body, the power assembly installation department with the crossing setting of installation direction of back suspension installation department, the power assembly installation department is located including installation sleeve, cover the installation bush in the installation sleeve outside and being located the installation sleeve with first vibration isolation rubber between the installation bush.
In some embodiments of the present application, the connection end of the mounting sleeve and the power assembly extends to the outside of the mounting sleeve, and the radial dimension of the portion of the mounting sleeve located outside the mounting sleeve is greater than the portion of the mounting sleeve located inside the mounting sleeve.
In some embodiments of the present application, the rear suspension bracket body includes: the power assembly bracket mounting part and the rear suspension mounting part are arranged on the first bracket body; the power assembly mounting part is arranged on the second bracket body; the first direction and the second direction are intersected.
In some embodiments of the present application, the end of the second bracket body is provided with three power assembly mounting portions, three power assembly mounting portions surround an output shaft of the power assembly.
In some embodiments of the present application, one of the three powertrain mounting portions is located on an upper side of an output shaft of the powertrain, and the other two are located on a lower side of the output shaft of the powertrain.
In some embodiments of the present application, the rear suspension installation part is formed by two support arms extending along the horizontal direction at the lower side of the first support body, and the two support arms are respectively provided with a first installation hole.
In some embodiments of the present application, power assembly support installation department for form in the mounting panel of first support body upside, be equipped with two second mounting holes on the mounting panel.
The application also discloses a powertrain suspension system, which comprises a powertrain bracket for supporting the powertrain; the rear suspension bracket is respectively connected with the power assembly bracket, the rear suspension and the power assembly; and the rear suspension is connected between the rear suspension bracket and the auxiliary frame.
In some embodiments of the present application, the rear suspension includes: a rear suspension outer sleeve for connection with the subframe; the rear suspension inner sleeve is positioned inside the rear suspension outer sleeve and is used for being connected with the rear suspension bracket; a rear suspension vibration isolation member located between the rear suspension outer sleeve and the rear suspension inner sleeve.
In some embodiments of this application, the back suspension with the back suspension support is through wearing to locate the back suspension inner skleeve with the connection can be dismantled in the fastener realization on the back suspension installation department.
Compared with the prior art, the technical scheme of the application has the following technical effects:
in the rear suspension support that this application provided, its setting is used for connecting the power assembly installation department of power assembly, and the power assembly installation department is provided with the vibration isolation structure, and it can make and form one-level vibration isolation between rear suspension support and the power assembly and be connected. In the rear suspension system adopting the rear suspension support, the secondary vibration isolation of the power assembly can be realized only by arranging the vibration isolation structure between the rear suspension and the rear suspension support, and the vibration isolation structure does not need to be arranged at the joint of the auxiliary frame and the vehicle body, so that the rigid body modal distribution is more reasonable, and the comfort of the whole vehicle is improved. Meanwhile, the power assembly mounting part and the rear suspension mounting part are arranged in an intersecting manner in the mounting direction, so that the vibration isolation structure arranged in two directions of the whole vehicle can be guaranteed to play a vibration isolation role, meanwhile, the length of the power assembly support in the front and rear directions of the whole vehicle can be reduced, the power assembly support is more advantageous in arrangement space, and the light weight of the power assembly part is facilitated.
Drawings
The objects and advantages of this application will be appreciated by the following detailed description of the preferred embodiments thereof, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic structural view of one embodiment of a rear suspension bracket of the present application;
FIG. 2 is a schematic structural view of one embodiment of a rear suspension bracket of the present application;
FIG. 3 is a partial cross-sectional view taken in the direction A-A of FIG. 2;
FIG. 4 is a schematic structural diagram of one embodiment of a powertrain suspension system of the present application;
fig. 5 is a cross-sectional view of the rear suspension of the present application.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 and fig. 2, the present application provides a rear suspension bracket for an electric vehicle, including: the rear suspension bracket comprises a rear suspension bracket body 101, a powertrain bracket mounting portion 102 for mounting a powertrain bracket 300, a rear suspension mounting portion 103 for mounting a rear suspension 200 and a powertrain mounting portion 104 for mounting a powertrain 500. The powertrain bracket mounting portion 102, the rear suspension mounting portion 103 and the powertrain mounting portion 104 are respectively connected to the rear suspension bracket body 101.
The powertrain bracket mounting part 102 is located on the upper side of the rear suspension bracket body 101; the rear suspension mounting part 103 is positioned at the lower side of the rear suspension bracket body 101, and the mounting direction of the rear suspension mounting part 103 is the same as that of the powertrain bracket mounting part 102; the powertrain mounting portion 104 is perpendicular to the mounting directions of the powertrain bracket mounting portion 102 and the rear suspension mounting portion 103, that is, in a working state, the mounting directions of the rear suspension mounting portion 103 and the powertrain bracket mounting portion 102 face the rear side of the powertrain 500, and the mounting direction of the powertrain mounting portion 104 faces the left side or the right side of the powertrain; as shown in fig. 3, the powertrain mounting portion 104 includes a mounting bushing 1041, a first vibration isolation rubber 1042 positioned inside the mounting bushing 1041, and a mounting sleeve 1043 positioned inside the first vibration isolation rubber 1042.
The rear suspension bracket 100 in the above embodiment is provided for a situation where the subframe 400 and the powertrain bracket 300 are both provided in a rectangular frame shape, and the surface of the powertrain 500 is provided in parallel or perpendicular to the powertrain bracket 300. For those skilled in the art, the subframe 400 and the powertrain support 300 may be configured in other irregular frame shapes according to different vehicle models, and a set angle may be provided between the surface of the powertrain 500 and the powertrain support 300, in which case, the installation directions of the powertrain installation portion and the rear suspension installation portion intersect along the set angle.
The rear suspension bracket 100 is integrally provided with a power assembly mounting portion 104 for connecting the power assembly 500, and the power assembly mounting portion 104 is provided with a vibration isolation structure, so that a primary vibration isolation connection can be formed between the rear suspension bracket 100 and the power assembly 500. In the rear suspension system adopting the rear suspension support 100, the secondary vibration isolation of the power assembly can be realized only by arranging the vibration isolation structure between the rear suspension 200 and the rear suspension support 100, and the vibration isolation structure does not need to be arranged at the joint of the auxiliary frame 400 and the vehicle body, so that the rigid body modal distribution is more reasonable, and the comfort of the whole vehicle is improved. Meanwhile, the power assembly mounting portion 104 and the rear suspension mounting portion 103 are arranged in a crossed manner, so that the vibration isolation structure arranged in two directions of the whole vehicle can be ensured to play a vibration isolation role, and meanwhile, the length of the power assembly support 300 in the front-rear direction of the whole vehicle can be reduced.
Specifically, the rear suspension bracket body 101 includes a first bracket body 1011 extending in a first direction and a second bracket body 1012 extending in a second direction, wherein the first direction is perpendicular to the second direction. In a working state, the first direction is parallel to the rear side of the power assembly, and the second direction is parallel to the left side or the right side of the power assembly 500; the first bracket body 1011 is provided with the powertrain bracket mounting portion 102 and the rear suspension mounting portion 103; the second bracket body 1012 is provided with the powertrain mounting portion 104.
Specifically, three power train mounting portions 104 are arranged at the end of the second bracket body 1012, and the three power train mounting portions 104 are arranged around the output shaft of the power train 500. One of which is located on the upper side of the output shaft of the powertrain 500 and the other two of which are located on the lower side of the output shaft of the powertrain 500. The three powertrain mounting portions provided around the output shaft of the powertrain 500 can attenuate large-amplitude vibration of the vehicle due to sudden braking and acceleration/deceleration at low frequencies and absorb vibration due to road surface and tread excitation at low frequencies. Specifically, the first vibration isolation rubber 1042 in the powertrain mounting portion 104 is not formed in the only manner; in one mode, the first vibration isolation rubber 1042 is detachably sleeved between the mounting bushing 1041 and the mounting sleeve 1043; in another embodiment, to facilitate the integral installation of the rear suspension bracket 100, the first vibration isolation rubber 1042 is vulcanized between the mounting bushing 1041 and the mounting sleeve 1043.
Specifically, in order to facilitate the connection between the power assembly 500 and the rear suspension bracket 100, the connection end of the mounting sleeve 1043 and the power assembly 500 extends to the outside of the mounting bushing 1041, and the end of the mounting sleeve 1043 contacts the power assembly 500 and is connected by a fastener penetrating between the two. Wherein, a radial dimension of a portion of the mounting sleeve 1043 located outside the mounting bush 1041 is larger than a portion of the mounting sleeve 1043 located inside the mounting bush 1041. This structure can improve the coupling strength of the rear suspension bracket 100.
Specifically, the rear suspension mounting portion 103 is formed on two support arms extending along the horizontal direction at the lower side of the first support body 1011, two of the support arms are respectively provided with a first mounting hole 1031, and an axis of the first mounting hole 1031 extends along the horizontal direction. The connection between the rear suspension 200 and the first mounting hole 1031 is realized by fastening bolts penetrating through the rear suspension and the first mounting hole 1031. The power assembly bracket 300 can be connected to the subframe 400 through the two rear suspensions 200, so that the subframe 400 has a simple structure and improved rigidity.
Specifically, the powertrain bracket mounting portion 102 is a mounting plate formed on the upper side of the first bracket body 1011, two second mounting holes 1021 are formed on the mounting plate, and the axes of the second mounting holes 1021 extend in the horizontal direction. The coupling between the powertrain bracket 300 and the rear suspension bracket 100 is achieved by fastening bolts inserted between the powertrain bracket 300 and the second mounting hole 1021.
Fig. 4 shows a powertrain suspension system provided by the present application, which includes a powertrain support 300 for supporting a powertrain, a rear suspension support 100 connected to the powertrain support 300, the rear suspension 200 and the powertrain, and a rear suspension 200 connected between the rear suspension support 100 and a subframe 400.
The power assembly suspension system adopting the rear suspension bracket 100 forms primary vibration reduction between the power assembly 500 and the rear suspension bracket 100, and forms secondary vibration reduction between the rear suspension bracket 100 and the rear suspension 200, so that the transmission of vibration generated by the power assembly to a frame can be reduced. Rigid connection is formed between the auxiliary frame 400 and the vehicle body, so that rigid body mode distribution is more reasonable, and the comfort of the whole vehicle is improved.
Specifically, as shown in fig. 5, the rear suspension 200 includes a rear suspension outer sleeve 201, a rear suspension inner sleeve 203, and a rear suspension vibration isolator 202 therebetween.
Wherein the rear suspension outer sleeve 201 is used for connecting with the subframe 400, and the rear suspension inner sleeve 203 is located inside the rear suspension outer sleeve 201 and is used for connecting with the rear suspension bracket 100. The rear suspension vibration isolator 202 is located between the rear suspension outer sleeve 201 and the rear suspension inner sleeve 203. The above-described vibration isolation structure of the rear suspension 200 is mainly used for absorbing vibration caused by excitation of a road surface and a tread at a high frequency.
Specifically, the rear suspension vibration isolator 202 is a rubber member, and the rear suspension vibration isolator 202 is vulcanized between the rear suspension outer sleeve 201 and the rear suspension inner sleeve 203. During processing and manufacturing, the inner ring of the rubber vibration isolator of the rear suspension 200 and the rear suspension inner sleeve 203 are vulcanized, then the outer ring of the suspension outer sleeve 201 is pressed into the auxiliary frame 400, the auxiliary frame 400 and the rear suspension 200 are combined together after pressing, and finally the rear suspension bracket 100 is connected with the rear suspension 200 through bolts.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of this invention are intended to be covered by the present application.
Claims (10)
1. A rear suspension bracket for an electric vehicle, characterized by comprising:
a rear suspension bracket body;
the power assembly bracket mounting part is connected to the rear suspension bracket body and used for mounting a power assembly bracket;
the rear suspension mounting part is connected to the rear suspension bracket body and used for mounting a rear suspension;
the power assembly installation department, connect in be used for installing the power assembly on the back suspension support body, the power assembly installation department with the crossing setting of installation direction of back suspension installation department, the power assembly installation department is located including installation sleeve, cover the installation bush in the installation sleeve outside and being located the installation sleeve with first vibration isolation rubber between the installation bush.
2. The rear suspension bracket for an electric vehicle according to claim 1,
the connecting end of the mounting sleeve and the power assembly extends to the outer side of the mounting bushing, and the radial dimension of the part, located on the outer side of the mounting bushing, of the mounting sleeve is larger than that of the part, located on the inner side of the mounting bushing, of the mounting sleeve.
3. The rear suspension bracket for an electric vehicle according to claim 1, wherein the rear suspension bracket body includes:
the power assembly bracket mounting part and the rear suspension mounting part are arranged on the first bracket body;
the power assembly mounting part is arranged on the second bracket body;
the first direction and the second direction are intersected.
4. The rear suspension bracket for an electric vehicle according to claim 3,
the end of the second support body is provided with three power assembly mounting portions, and the three power assembly mounting portions surround an output shaft of the power assembly.
5. The rear suspension bracket for an electric vehicle according to claim 4,
among the three power assembly installation portions, one of the power assembly installation portions is located on the upper side of an output shaft of the power assembly, and the other two of the power assembly installation portions are located on the lower side of the output shaft of the power assembly.
6. The rear suspension bracket for an electric vehicle according to claim 3,
the rear suspension installation part is formed on two support arms extending along the horizontal direction at the lower side of the first support body, and the two support arms are respectively provided with a first installation hole.
7. The rear suspension bracket for an electric vehicle according to claim 3,
the power assembly support mounting part is formed on the mounting plate on the upper side of the first support body, and two second mounting holes are formed in the mounting plate.
8. A powertrain suspension system, characterized by: which comprises the steps of preparing a mixture of a plurality of raw materials,
a powertrain support for supporting a powertrain;
the rear suspension mount of any of claims 1-7 coupled to the powertrain mount, rear suspension, and powertrain, respectively;
and the rear suspension is connected between the rear suspension bracket and the auxiliary frame.
9. The locomotion assembly suspension system of claim 8, wherein the rear suspension comprises:
a rear suspension outer sleeve for connection with the subframe;
the rear suspension inner sleeve is positioned inside the rear suspension outer sleeve and is used for being connected with the rear suspension bracket;
a rear suspension vibration isolation member located between the rear suspension outer sleeve and the rear suspension inner sleeve.
10. The powertrain suspension system of claim 9,
the back suspension with back suspension support is through wearing to locate back suspension inner skleeve with the fastener on the back suspension installation department realizes dismantling the connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021707649.4U CN213261937U (en) | 2020-08-14 | 2020-08-14 | Rear suspension support for electric automobile and power assembly suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021707649.4U CN213261937U (en) | 2020-08-14 | 2020-08-14 | Rear suspension support for electric automobile and power assembly suspension system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213261937U true CN213261937U (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021707649.4U Active CN213261937U (en) | 2020-08-14 | 2020-08-14 | Rear suspension support for electric automobile and power assembly suspension system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213261937U (en) |
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2020
- 2020-08-14 CN CN202021707649.4U patent/CN213261937U/en active Active
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