CN219277222U

CN219277222U - Suspension bracket, motor assembly and vehicle

Info

Publication number: CN219277222U
Application number: CN202320505837.6U
Authority: CN
Inventors: 柳东坡
Original assignee: Xiaomi Automobile Technology Co Ltd
Current assignee: Xiaomi Automobile Technology Co Ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-06-30
Anticipated expiration: 2033-03-10

Abstract

The utility model relates to a suspension bracket, a motor assembly and a vehicle, wherein the suspension bracket comprises: support body and reinforcing plate, be equipped with suspension installation position and a plurality of first motor installation position on the support body, a plurality of first motor installation position interval arrangement is in on the support body, the reinforcing plate is located one side of support body and follow the thickness direction of support body extends, be equipped with the second motor installation position on the reinforcing plate. The suspension bracket has reasonable structural design, can provide sufficient bending rigidity for the motor, and has higher reliability after installation.

Description

Suspension bracket, motor assembly and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a suspension bracket, a motor assembly and a vehicle.

Background

The motor suspension bracket is a connecting part of an electric drive system assembly and a vehicle body of the electric vehicle, the driving motor is a main noise source in the electric vehicle, and in order to avoid the vibration generated by the motor to be transmitted to the vehicle body, the motor suspension bracket is required to have a good isolation effect on the vibration excitation of the motor, if the structural design of the bracket is unreasonable, the bracket is easy to generate resonance in the working state of the assembly to cause NVH (noise vibration harshness) problems, and even the bracket is broken due to insufficient rigidity strength.

In the related art, the mounting positions of the suspension brackets are usually in the same plane, and since the mounting positions are usually arranged at the edges of the motor housing, the suspension brackets are easy to deform when being subjected to force bending outwards, and thus the motor cannot be provided with enough bending rigidity, so that the reliability of the motor after being mounted is low.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the utility model provides the suspension bracket which has reasonable structural design, can provide enough bending rigidity for the motor and has higher reliability after installation.

The embodiment of the utility model also provides a motor assembly.

The embodiment of the utility model also provides a vehicle.

The suspension bracket of the embodiment of the utility model comprises: the bracket comprises a bracket body, wherein a suspension installation position and a plurality of first motor installation positions are arranged on the bracket body, and the plurality of first motor installation positions are arranged on the bracket body at intervals; the reinforcing plate is arranged on one side of the support body and extends along the thickness direction of the support body, and a second motor installation position is arranged on the reinforcing plate.

According to the suspension bracket provided by the embodiment of the utility model, the reinforcing plate is arranged on one side of the bracket body and extends along the thickness direction of the bracket body, so that the mounting plane of the reinforcing plate and the motor and the mounting plane of the bracket body and the motor are approximately orthogonal, and the first motor mounting position of the bracket body and the second motor mounting position of the reinforcing plate can be simultaneously connected with different sides of the motor, so that the problem of insufficient bending rigidity of the bracket body can be solved, and the mounting reliability of the suspension bracket and the motor is improved.

In some embodiments, the bracket body is provided with a reinforcing rib, and the reinforcing rib is arranged between the adjacent first motor mounting positions and between the first motor mounting positions and the suspension mounting positions.

In some embodiments, the inner side of the reinforcing plate and the inner side of the bracket body define a motor mounting cavity, the plurality of reinforcing ribs are arranged on the inner side of the bracket body, and the plurality of reinforcing ribs and the inner side of the bracket body define a structural cavity.

In some embodiments, at least two of the reinforcing ribs are connected to each of the first motor mounting location and the suspension mounting location.

In some embodiments, a first reinforcing rib and a second reinforcing rib are arranged between the adjacent first motor installation positions and/or between the first motor installation positions and the suspension installation positions, and the first reinforcing rib and the second reinforcing rib are arranged in parallel.

In some embodiments, the support body is further provided with a rib center, third reinforcing ribs are respectively arranged between the first motor installation position and the suspension installation position and between the first motor installation position and the rib center, the second reinforcing ribs are closer to the rib center than the first reinforcing ribs, and a plurality of third reinforcing ribs respectively enclose triangular structural cavities with the corresponding second reinforcing ribs.

In some embodiments, the ribs taper in thickness in a direction away from the stent body.

In some embodiments, the reinforcing plate is provided with a lightening hole, and/or the reinforcing plate is detachably connected with the bracket body.

A motor assembly according to another embodiment of the present utility model includes: a suspension bracket; the suspension bracket is the suspension bracket according to the embodiment of the utility model; and the first motor installation position and the second motor installation position are respectively connected with different sides of the motor.

According to the motor assembly provided by the embodiment of the utility model, the reinforcing plate is arranged on one side of the bracket body and extends along the thickness direction of the bracket body, so that the mounting plane of the reinforcing plate and the motor and the mounting plane of the bracket body and the motor are approximately orthogonal, and the first motor mounting position of the bracket body and the second motor mounting position of the reinforcing plate can be simultaneously connected with different sides of the motor, so that the problem of insufficient bending rigidity of the bracket body can be solved, and the mounting reliability of the suspension bracket and the motor is improved.

A vehicle according to another embodiment of the present utility model includes a motor assembly according to an embodiment of the present utility model.

According to the vehicle provided by the embodiment of the utility model, the reinforcing plate is arranged on one side of the bracket body and extends along the thickness direction of the bracket body, so that the mounting plane of the reinforcing plate and the motor and the mounting plane of the bracket body and the motor are approximately orthogonal, and the first motor mounting position of the bracket body and the second motor mounting position of the reinforcing plate can be simultaneously connected with different sides of the motor, so that the problem of insufficient bending rigidity of the bracket body can be solved, and the mounting reliability of the suspension bracket and the motor is improved.

Drawings

Fig. 1 is an isometric view of a suspension bracket according to an embodiment of the present utility model.

Fig. 2 is a front view of a suspension bracket according to an embodiment of the present utility model.

Reference numerals:

1. a bracket body; 11. a suspension mounting position; 12. a first motor mounting location; 13. a second motor mounting location; 13. reinforcing ribs; 131. a first reinforcing rib; 132. a second reinforcing rib; 133. a third reinforcing rib; 14. a motor mounting cavity; 15. the center of the rib; 16. a fixing seat; 17. a structural cavity;

2. a reinforcing plate; 21. a second motor mounting location; 22. a lightening hole; 23. and a fixing hole.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

A suspension bracket, a motor assembly, and a vehicle according to an embodiment of the present utility model are described below with reference to fig. 1 and 2.

As shown in fig. 1 and 2, a suspension bracket according to an embodiment of the present utility model includes: a bracket body 1 and a reinforcing plate 2. The bracket body 1 is provided with a suspension installation position 11 and a plurality of first motor installation positions 12, and the plurality of first motor installation positions 12 are arranged on the bracket body 1 at intervals. The reinforcing plate 2 is disposed on one side of the bracket body 1 and extends in a thickness direction (e.g., a front-rear direction of fig. 1) of the bracket body 1, and a second motor mounting position 21 is provided on the reinforcing plate 2.

It will be appreciated that when the motor is secured to the suspension bracket, a portion of the screw may be threaded onto the plurality of first motor mounting locations 12 to tighten the bracket body 1 against one side of the motor, and then another portion of the screw may be threaded onto the second motor mounting location 21 to tighten the stiffener plate 2 against the other side of the motor. The suspension mounting position 11 is used for penetrating the suspension shaft to fix the suspension bracket at a preset position of the vehicle body.

According to the suspension bracket of the embodiment of the utility model, the reinforcing plate 2 is arranged on one side of the bracket body 1 and extends along the thickness direction of the bracket body 1, so that the mounting plane of the reinforcing plate 2 and the motor and the mounting plane of the bracket body 1 and the motor are approximately orthogonal, and the first motor mounting position 12 of the bracket body 1 and the second motor mounting position 21 of the reinforcing plate 2 can be simultaneously connected with different sides of the motor, so that the problem of insufficient bending rigidity of the bracket body 1 can be solved, the stress of the suspension bracket is more three-dimensional, the capability of the suspension bracket for resisting bending moment in all directions is increased, and the reliability of the suspension bracket and the motor mounting is improved.

For example, the number of the second motor mounting positions 21 may be one or more, and the number of the second motor mounting positions 21 is not particularly limited in this application. As shown in fig. 1, in the embodiment of the present utility model, the second motor mounting position 21 is one, and the second motor mounting position 21 is disposed on the side of the reinforcing plate 2 facing away from the bracket body 1.

Alternatively, as shown in fig. 1 and 2, the reinforcing plate 2 is detachably attached to the bracket body 1. For example, the reinforcing plate 2 and the bracket body 1 may be fixed by bolting. Specifically, the side of the bracket body 1 is provided with a fixing seat 16, the reinforcing plate 2 is provided with a fixing hole 23, and a bolt passes through the fixing hole 23 and is screwed into the fixing seat 16, so that the reinforcing plate 2 and the bracket body 1 are fixed. The suspension bracket of the embodiment of the utility model can be used for independently manufacturing the reinforcing plate 2 and the bracket body 1 by fixing the reinforcing plate 2 and the bracket body 1 in the above manner and then assembling the reinforcing plate 2 and the bracket body together, so that the manufacturing process of the suspension bracket is simple and the cost is lower.

For example, the bracket body 1 is made of forged aluminum alloy material and is manufactured by an integral die casting process, so that the weight of the bracket body 1 can be reduced.

Optionally, as shown in fig. 1, the reinforcing plate 2 is provided with lightening holes 22. For example, the lightening holes 22 are hollow structures, and the lightening holes 22 are located in the middle of the reinforcing plate 2. The suspension bracket of the embodiment of the utility model can lighten the weight of the suspension bracket by arranging the lightening holes 22 on the reinforcing plate 2, thereby realizing the lightweight design of the suspension bracket.

In some embodiments, as shown in fig. 2, the bracket body 1 is provided with reinforcing ribs 13, and the reinforcing ribs 13 are disposed between adjacent first motor mounting positions 12 and between the first motor mounting positions 12 and the suspension mounting positions 11. It will be appreciated that the reinforcing ribs 13 are a plurality, with a portion of the reinforcing ribs 13 being disposed between two adjacent first motor mounting locations 12. Another part of the reinforcing bars 13 is arranged between the first motor mounting location 12 and the suspension mounting location 11. The suspension bracket of the embodiment of the utility model can improve the structural strength of the bracket body 1 by arranging the reinforcing ribs 13 into the structure, so that the dynamic stiffness performance of the suspension bracket is better.

Alternatively, as shown in fig. 1 and 2, the inner side surface of the reinforcing plate 2 and the inner side surface of the bracket body 1 define a motor mounting cavity 14, a plurality of reinforcing ribs 13 are arranged on the inner side surface of the bracket body 1, and the plurality of reinforcing ribs 13 and the inner side surface of the bracket body 1 define a structural cavity 17. It will be appreciated that the stiffener 13 is arranged on the side of the bracket body 1 adjacent to the motor. After the suspension bracket and the motor are installed in place, a plurality of structural cavities 17 surrounded by the reinforcing ribs 13 are formed between the bracket body 1 and the motor, and the ribs around the structural cavities 17 can bear the force between the installation positions, so that the suspension bracket of the embodiment of the utility model can improve the connection rigidity of the first motor installation position 12 and the suspension installation position 11 by utilizing the characteristic of high structural strength of the cavities, and ensure the stability after the motor is installed. On the other hand, because the structural cavity 17 is arranged between the bracket body 1 and the motor, the manufacturing material of the suspension bracket can be saved, and the production cost of the suspension bracket is reduced.

Optionally, as shown in fig. 2, at least two reinforcing ribs 13 are connected to each of the first motor mounting location 12 and the suspension mounting location 11 to form a structure similar to a simply supported beam. It will be appreciated that the first motor mounting location 12 and the suspension mounting location 11 are both convex rib seat structures, and the rib seat is provided with mounting holes, and the ends of the two reinforcing ribs 13 are connected with the side walls of the rib seat.

For example, as shown in fig. 2, first reinforcing ribs 131 and second reinforcing ribs 132 are provided between adjacent first motor mounting positions 12 and between the first motor mounting positions 12 and the suspension mounting positions 11, and the first reinforcing ribs 131 and the second reinforcing ribs 132 are arranged in parallel. For example, the suspension mounting location 11 and the first motor mounting location 12 each span two parallel stiffener bars 13, thereby providing the primary force transfer path for the mounting locations. It will be appreciated that the suspension mounting locations 11 and the plurality of first motor mounting locations 12 are arranged at intervals along the circumferential direction of the bracket body 1, and outer rings of the suspension mounting locations 11 and the first motor mounting locations 12 are connected in series with each other by the first reinforcing ribs 131 to form a semi-enclosed C-shaped structure. The inner rings of the suspension mounting position 11 and the first motor mounting position 12 are connected in series through the second reinforcing ribs 132, and the first reinforcing ribs 131 and the second reinforcing ribs 132 are arranged in parallel, so that the reinforcing ribs 13 between the suspension mounting position 11 and the first motor mounting position 12 are of a double-C-shaped annular structure, a main frame of each mounting position of the bracket body 1 can be formed, the dynamic stiffness performance of the suspension bracket is further improved, and the mounting stability of the suspension bracket and the motor is better.

In some embodiments, as shown in fig. 2, the bracket body 1 is further provided with a rib center 15, and third reinforcing ribs 133 are respectively disposed between the first motor mounting position 12 and the suspension mounting position 11 and the rib center 15, the second reinforcing ribs 132 are closer to the rib center 15 than the first reinforcing ribs 131, and the plurality of third reinforcing ribs 133 and the corresponding second reinforcing ribs 132 respectively enclose a triangular structural cavity 17. It will be appreciated that the centroid of each mounting location is also the center of force, i.e., the rib center location 15. The reinforcing ribs 13 connected with the installation positions are designed from the positions of the rib center positions 15, so that triangular cavities are formed by surrounding the reinforcing ribs 13 between the adjacent installation positions and the rib center positions 15, and further, the triangular stability can be utilized to provide enough support for the first motor installation positions 12 and the suspension installation positions 11, and the stability of the installation of the suspension bracket is improved.

Alternatively, as shown in fig. 2, the thickness of the reinforcing ribs 13 is gradually reduced in a direction away from the bracket body 1, and the extending direction of part of the reinforcing ribs 13 is arc-shaped, so that the structural rigidity of the reinforcing ribs 13 can be ensured while the reinforcing ribs 13 can be reduced in weight.

In summary, the suspension bracket according to the embodiment of the utility model has the following advantages.

1. According to the suspension bracket provided by the embodiment of the utility model, the reinforcing plate 2 is additionally arranged in the direction perpendicular to the installation plane of the bracket body 1, so that the stress of the suspension bracket is more three-dimensional, and the capability of the suspension bracket for resisting bending moment in all directions is improved.

2. The suspension bracket of the embodiment of the utility model obtains the optimal force transmission path of the suspension bracket in the available arrangement space through topological optimization, and the structural design of the reinforcing ribs 13 is carried out on the basis of the optimal force transmission path, so that the dynamic stiffness performance is met and the lightweight design is realized.

3. The suspension bracket of the embodiment of the utility model optimizes the shape and thickness of the ribs and designs the reinforcing ribs 13 with arc deformation thickness, so that the weight of the part is reduced under the conditions of NVH and safety performance on the basis of meeting the rigidity of the suspension bracket, and the weight and cost of the part are reduced.

The motor assembly of another embodiment of the present utility model includes a suspension bracket and a motor, wherein the suspension bracket is the suspension bracket of the present utility model, and the first motor mounting position 12 and the second motor mounting position 21 are respectively connected to different sides of the motor.

According to the motor assembly of the embodiment of the utility model, the reinforcing plate 2 is arranged on one side of the bracket body 1 and extends along the thickness direction of the bracket body 1, so that the mounting plane of the reinforcing plate 2 and the motor and the mounting plane of the bracket body 1 and the motor are approximately orthogonal, and the first motor mounting position 12 of the bracket body 1 and the second motor mounting position 21 of the reinforcing plate 2 can be simultaneously connected with different sides of the motor, thereby solving the problem of insufficient bending rigidity of the bracket body 1 and improving the reliability of mounting the suspension bracket and the motor.

A vehicle of another embodiment of the present utility model includes the motor assembly of the present utility model.

According to the vehicle of the embodiment of the utility model, the reinforcing plate 2 is arranged on one side of the bracket body 1 and extends along the thickness direction of the bracket body 1, so that the mounting plane of the reinforcing plate 2 and the motor and the mounting plane of the bracket body 1 and the motor are approximately orthogonal, and the first motor mounting position 12 of the bracket body 1 and the second motor mounting position 21 of the reinforcing plate 2 can be simultaneously connected with different sides of the motor, thereby the problem of insufficient bending rigidity of the bracket body 1 can be solved, and the reliability of mounting the suspension bracket and the motor is improved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims

1. A suspension bracket, comprising:

the bracket comprises a bracket body, wherein a suspension installation position and a plurality of first motor installation positions are arranged on the bracket body, and the plurality of first motor installation positions are arranged on the bracket body at intervals;

the reinforcing plate is arranged on one side of the support body and extends along the thickness direction of the support body, and a second motor installation position is arranged on the reinforcing plate.

2. The suspension bracket according to claim 1, wherein the bracket body is provided with a reinforcing rib provided between adjacent first motor mounting positions and between the first motor mounting positions and the suspension mounting positions.

3. The suspension bracket of claim 2, wherein the inner side of the reinforcement plate and the inner side of the bracket body define a motor mounting cavity, the plurality of reinforcement ribs being disposed on the inner side of the bracket body, the plurality of reinforcement ribs and the inner side of the bracket body defining a structural cavity.

4. The suspension bracket of claim 2, wherein at least two of the reinforcing ribs are connected to each of the first motor mounting location and the suspension mounting location.

5. The suspension bracket according to claim 2, wherein first and second reinforcing ribs are provided between adjacent first motor mounting positions and/or between the first motor mounting positions and the suspension mounting positions, the first and second reinforcing ribs being arranged in parallel.

6. The suspension bracket of claim 5, wherein the bracket body is further provided with a rib center, third reinforcing ribs are respectively arranged between the first motor mounting position and the suspension mounting position and between the first motor mounting position and the rib center, the second reinforcing ribs are closer to the rib center than the first reinforcing ribs, and a plurality of third reinforcing ribs and the corresponding second reinforcing ribs form triangular structural cavities.

7. The suspension bracket of claim 2, wherein the reinforcement ribs taper in thickness in a direction away from the bracket body.

8. A suspension bracket according to any one of claims 1-7, wherein the reinforcement plate is provided with lightening holes and/or the reinforcement plate is detachably connected to the bracket body.

9. An electric motor assembly, comprising:

a suspension bracket; the suspension mount is the suspension mount of any one of claims 1-8;

and the first motor installation position and the second motor installation position are respectively connected with different sides of the motor.

10. A vehicle comprising the electric machine assembly of claim 9.