Novel new energy automobile single reduction motor suspension system

Abstract

The utility model discloses a novel new energy automobile single reduction motor suspension system which comprises a first support, a second support and a third support, the first support is arranged on the front portion of a motor, the first support comprises a bent pipe body, a plurality of connecting parts and reinforcing ribs, and the connecting parts are located on the two sides of the bent pipe body; the second support is arranged on the rear portion of the motor, and the second support comprises a rear suspension support and a rear motor support; the connecting bodies are of strip-shaped structures, the number of the connecting bodies is at least two, the multiple connecting bodies are arranged in parallel and are parallel to the advancing direction of a vehicle, the connecting parts are connected with the front portions of the connecting bodies, and the rear suspension supports are connected to the rear portions of the connecting bodies; wherein the front portion refers to the space, close to a vehicle head, of a vehicle motor cabin, and the rear portion refers to the space, close to a vehicle tail, of the vehicle motor cabin. The problems that an existing suspension support is poor in installation flexibility, uneven in stress distribution and insufficient in light weight can be solved.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicles, and in particular to a novel single-motor mounting system for new energy vehicles. Background Technology

[0002] In new energy vehicles, the electric motor is the core power component, and it generates vibration and impact during operation. The function of the motor mounting bracket is to securely mount the motor to the vehicle body and effectively isolate the transmission of motor vibration to the vehicle body, thereby improving ride comfort and the overall NVH (noise, vibration, and harshness) performance of the vehicle.

[0003] Currently, most common motor mounting brackets adopt a straight plate structure. This structure suffers from poor installation flexibility when dealing with complex vehicle interior layouts. Due to the numerous internal components and limited space in new energy vehicles, straight plate brackets are difficult to arrange and install effectively within a confined space. Moreover, when subjected to motor vibration and impact, the stress distribution of straight plate brackets is not uniform, which can easily lead to localized stress concentration, reducing the lifespan and reliability of the bracket, and consequently affecting the normal operation of the motor and the overall vehicle performance.

[0004] Furthermore, traditional suspension brackets have shortcomings in lightweight design. Heavier brackets increase the overall vehicle weight, affecting the driving range of new energy vehicles and failing to meet the development requirements of lightweight and high-efficiency in new energy vehicles. Therefore, developing a novel and high-performance motor suspension bracket for new energy vehicles is of significant practical importance.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a novel single-motor mounting system for new energy vehicles, which can solve the problems existing in the background technology.

[0007] To achieve the above objectives, this utility model provides a novel single-reduction motor mounting system for new energy vehicles, comprising: a first bracket, which is disposed at the front of the motor and includes a bent tube body, a connecting part, and a reinforcing rib, with multiple connecting parts located on both sides of the bent tube body; a second bracket, which is disposed at the rear of the motor and includes a rear suspension bracket and a rear motor bracket; and a connecting body, which is a strip-shaped structure, with at least two connecting bodies arranged in parallel and parallel to the vehicle's direction of travel, the connecting parts being connected to the front of the connecting body, and the rear suspension bracket being connected to the rear of the connecting body; wherein, the front refers to the space of the vehicle motor compartment near the front of the vehicle, and the rear refers to the space of the vehicle motor compartment near the rear of the vehicle.

[0008] In one or more embodiments, the shape of the bent pipe body is configured to match the shape of the front of the motor, and the middle part of the bent pipe body is bent downward to form an inverted trapezoidal pipe shape.

[0009] In one or more embodiments, one or more of the connecting portions are also disposed in the middle of the bent pipe body.

[0010] In one or more embodiments, the novel new energy vehicle single-reduction motor suspension system further includes a suspension pad, one or more of the suspension pads being disposed on the top of the rear motor bracket, and one or more of the suspension pads being disposed on the top of the connecting part in the middle of the bend.

[0011] In one or more embodiments, the connecting portion includes a plurality of mounting holes for bolts to pass through; the connecting portions located on both sides of the bend body are fixed to the connecting body by bolts and nuts; the connecting portion located in the middle of the bend body is connected to the suspension pad by bolts and nuts.

[0012] In one or more embodiments, the reinforcing rib is fixed to the bottom of the bent pipe body, the shape of the reinforcing rib is consistent with the bending direction of the bent pipe body, the reinforcing rib and the bent pipe body are integrally formed, and the reinforcing rib is used to increase the structural strength of the bent pipe body.

[0013] In one or more embodiments, one end of the rear suspension bracket is connected to the connector, and the other end is connected to the rear motor bracket, wherein the rear motor bracket is a sheet-like structure bent at right angles.

[0014] In one or more embodiments, the number of rear suspension brackets is 2, the number of rear motor brackets is 2, and the two rear motor brackets are arranged opposite to each other.

[0015] In one or more embodiments, the novel new energy vehicle single-reduction motor suspension system further includes a guide sleeve, which is connected to the suspension pad.

[0016] Compared with the prior art, the various technical solutions and embodiments provided by this utility model include at least the following technical effects or advantages:

[0017] By setting up first and second brackets for easy assembly and disassembly of each component, the poor installation flexibility of existing suspension brackets is solved; stress distribution is measured through CAE experiments and suspension pads are set for locations with more severe stress to solve the problem of uneven stress distribution; and the problem of insufficient lightweighting is solved by setting up a bent pipe body and a motor bracket. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and are intended to explain the invention. They are intended to be seen as illustrative of various combinations of preferred embodiments and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 A schematic diagram of the overall structure of a novel single-reduction motor mounting system for new energy vehicles provided by this utility model;

[0020] Figure 2 An exploded view of a novel single-reduction motor mounting system for new energy vehicles provided by this utility model;

[0021] Figure 3 A schematic diagram showing the positional relationship between the novel single-reduction motor mounting system for new energy vehicles and the motor after actual installation, provided by this utility model;

[0022] Figure 4 A schematic diagram showing the positional relationship between the novel single-reduction motor mounting system for new energy vehicles and the connecting body after installation, as provided by this utility model.

[0023] The labels in the diagram represent: 1-first bracket, 11-bend body, 12-connector, 13-reinforcing rib, 2-second bracket, 21-rear suspension bracket, 22-rear motor bracket, 3-connector, 4-suspension pad. Detailed Implementation

[0024] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises", "made for", etc., shall be understood to include the stated elements or components, without excluding other elements or other components.

[0025] The purpose of this invention is to provide a novel single-motor mounting system for new energy vehicles to solve the problems of poor installation flexibility, uneven stress distribution, and insufficient lightweighting of existing mounting brackets.

[0026] Example 1:

[0027] This embodiment provides a novel single-reduction motor mounting system for new energy vehicles, comprising: a first bracket 1, which is disposed at the front of the motor and includes a bent tube body 11, a connecting part 12, and a reinforcing rib 13, with multiple connecting parts 12 located on both sides of the bent tube body 11; a second bracket 2, which is disposed at the rear of the motor and includes a rear suspension bracket 21 and a rear motor bracket 22; and a connecting body 3, which is a strip structure, with at least two connecting bodies 3 arranged in parallel and parallel to the vehicle's direction of travel, the connecting part 12 being connected to the front of the connecting body 3, and the rear suspension bracket 21 being connected to the rear of the connecting body 3; wherein, the front refers to the space of the vehicle motor compartment near the front of the vehicle, and the rear refers to the space of the vehicle motor compartment near the rear of the vehicle.

[0028] Specifically, to reduce the weight of the motor mount and increase its assembly / disassembly efficiency, the novel single-motor mount system for new energy vehicles reduces the weight of the mount by setting a first bracket 1 and a second bracket 2, and improves assembly / disassembly efficiency through a convenient structure. Preferably, the connecting body 3 is a vehicle frame, which is set parallel to both sides of the vehicle. The first bracket 1 is connected to the two side frames at both ends, and the second bracket 2 is fixed to the two side frames. The vehicle frame, the first bracket 1, and the second bracket 2 together form a space for fixing the motor. Based on the shape characteristics of the motor, which is narrow at the front and wide at the rear, the first bracket 1 and the second bracket 2 are uniquely designed. The first bracket 1 adopts a bent tube structure to fit the narrower front part of the motor. Since the rear end of the motor occupies a large space, if the second bracket 2 adopts the same structure, it will further increase the space occupied in the engine compartment. Therefore, the second bracket 2 adopts a structure that is broken at both sides and connects the vehicle frame and the motor respectively, reducing the space occupied while ensuring the fixing strength.

[0029] In a preferred embodiment of this invention, the shape of the bent pipe body 11 is set to match the shape of the front of the motor, and the middle part of the bent pipe body 11 is bent downward to form an inverted trapezoidal pipe shape.

[0030] Specifically, in order to fit the edge shape of the front end of the motor, the pipe of the bent pipe body 11 is an inverted trapezoid, and the front end of the motor is supported on the top edge of the inverted trapezoid and fits tightly.

[0031] In a preferred embodiment of this invention, one or more of the connecting portions 12 are also disposed in the middle of the bent pipe body 11.

[0032] As a preferred embodiment of this example, the novel new energy vehicle single-reduction motor suspension system further includes a suspension pad 4, one or more of the suspension pads 4 being disposed on the top of the rear motor bracket 22, and one or more of the suspension pads 4 being disposed on the top of the connecting part 12 in the middle of the bend.

[0033] Specifically, in order to address the problem of uneven stress distribution on the motor's suspension bracket, leading to severe aging in certain parts of the bracket, this embodiment conducts a CAE analysis experiment on the single-reduction motor suspension bracket, analyzing the stress under various operating conditions, including:

[0034] 1. Maximum forward torque condition

[0035] 2. Maximum reverse torque condition

[0036] 3. 8KPH front impact condition

[0037] 4. Impact condition after 8KPH

[0038] 5. Vertical +4g, lateral left-side -3g operating condition

[0039] 6. Vertical +4g, lateral left 3g working condition

[0040] 7. Vertical -6g, lateral left-side -3g operating condition

[0041] 8. Vertical -6g, lateral left-side 3g working condition

[0042] Based on CAE analysis, the stress analysis of the support model under various complex working conditions is obtained, and the location of severe stress is found based on the experimental results. Therefore, in this embodiment, a suspension pad 4 is provided at the top of the connection part 12 between the top of the rear motor support 22 and the middle of the bend. The suspension pad 4 is made of rubber and has good elasticity and damping characteristics. It can deform to meet the stress direction and stress magnitude, and play the role of buffering and protecting the suspension support.

[0043] In a preferred embodiment of this invention, the connecting part 12 includes a plurality of mounting holes for bolts to pass through; the ends of the connecting part 12 located on both sides of the bent pipe body 11 are fixed to the connecting body 3 by bolts and nuts; the connecting part 12 located in the middle of the bent pipe body 11 is connected to the suspension pad 4 by bolts and nuts.

[0044] In a preferred embodiment of this invention, the reinforcing rib 13 is fixed to the bottom of the bent pipe body 11. The shape of the reinforcing rib 13 is consistent with the bending direction of the bent pipe body 11. The reinforcing rib 13 and the bent pipe body 11 are integrally formed. The reinforcing rib 13 is used to increase the structural strength of the bent pipe body 11.

[0045] Specifically, in order to provide better structural strength to the bent pipe body 11, a reinforcing rib 13 is provided along the bottom of the bent pipe body 11. The reinforcing rib 13 resists the deformation of the bent pipe body 11 through its own structural strength, thereby avoiding the deformation of the bent pipe body 11.

[0046] In a preferred embodiment of this invention, one end of the rear suspension bracket 21 is connected to the connector 3, and the other end is connected to the rear motor bracket 22, which is a sheet-like structure bent at right angles.

[0047] In a preferred embodiment of this example, there are two rear suspension brackets 21 and two rear motor brackets 22, with the two rear motor brackets 22 arranged opposite to each other.

[0048] Specifically, the rear suspension bracket 21 is used to connect to the rear end of the motor, and its surface includes multiple screw holes for fixing to the motor using bolts and screws. To increase the contact area between the rear suspension bracket 21 and the motor, and to provide more screw holes to improve the fixing effect, the rear suspension bracket 21 is designed as a right-angle bent sheet structure, which is fixed to multiple surfaces of the motor through two vertical surfaces, thereby improving the fixing strength of the motor.

[0049] As a preferred embodiment of this invention, the novel new energy vehicle single-reduction motor suspension system further includes a guide sleeve, which is connected to the suspension pad 4.

[0050] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A novel single-motor mounting system for new energy vehicles, characterized in that, include: A first bracket is disposed at the front of the motor. The first bracket includes a bent pipe body, a connecting part, and a reinforcing rib. A plurality of the connecting parts are located on both sides of the bent pipe body. The second bracket is located at the rear of the motor and includes a rear suspension bracket and a rear motor bracket. The connecting body is a strip-shaped structure. There are at least two connecting bodies, and multiple connecting bodies are arranged in parallel and parallel to the vehicle's direction of travel. The connecting part is connected to the front part of the connecting body, and the rear suspension bracket is connected to the rear part of the connecting body. The "front" refers to the space near the front of the vehicle's motor compartment, and the "rear" refers to the space near the rear of the vehicle's motor compartment.

2. The novel single-reduction motor mounting system for new energy vehicles as described in claim 1, characterized in that, The shape of the main body of the bend is designed to match the shape of the front of the motor. The middle part of the main body of the bend is bent downward to form an inverted trapezoidal pipe shape.

3. A novel single-reduction motor mounting system for new energy vehicles as described in claim 2, characterized in that, One or more of the connecting parts are also provided in the middle of the bent pipe body.

4. A novel single-reduction motor mounting system for new energy vehicles as described in claim 3, characterized in that, The novel single-reduction motor suspension system for new energy vehicles also includes suspension pads, one or more of which are disposed on the top of the rear motor bracket, and one or more of which are disposed on the top of the connecting part in the middle of the bend.

5. A novel single-reduction motor mounting system for new energy vehicles as described in claim 4, characterized in that, The connecting part includes multiple mounting holes for bolts to pass through; the connecting parts located on both sides of the bend body are fixed to the connecting body by bolts and nuts; the connecting part located in the middle of the bend body is connected to the suspension pad by bolts and nuts.

6. A novel single-reduction motor mounting system for new energy vehicles as described in claim 5, characterized in that, The reinforcing rib is fixed to the bottom of the bent pipe body. The shape of the reinforcing rib is consistent with the bending direction of the bent pipe body. The reinforcing rib and the bent pipe body are integrally formed. The reinforcing rib is used to increase the structural strength of the bent pipe body.

7. A novel single-reduction motor mounting system for new energy vehicles as described in claim 6, characterized in that, One end of the rear suspension bracket is connected to the connector, and the other end is connected to the rear motor bracket. The rear motor bracket is a sheet-like structure bent at a right angle.

8. A novel single-reduction motor mounting system for new energy vehicles as described in claim 7, characterized in that, The number of rear suspension brackets is 2, the number of rear motor brackets is 2, and the two rear motor brackets are arranged opposite to each other.

9. A novel single-reduction motor mounting system for new energy vehicles as described in claim 8, characterized in that, The novel single-reduction motor suspension system for new energy vehicles also includes a guide sleeve, which is connected to the suspension pad.

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