Driving motor mounting bracket for low-speed new energy electric vehicle

Abstract

The utility model discloses a low-speed new energy electric vehicle driving motor mounting bracket, which relates to the field of new energy vehicles, and comprises a rear axle arranged between a left driving wheel and a right driving wheel, a driving motor for driving the left driving wheel and the right driving wheel to operate, and a motor bracket, the right end cover of the driving motor is connected with the rear axle in a screw-thread fit manner; the motor bracket is arranged on the left of the driving motor and in front of the rear axle; the motor support comprises a first fixing plate and a second fixing plate which are used for fixing the driving motor on the rear axle, the first fixing plate and the second fixing plate are vertically and fixedly connected, and the first fixing plate and the second fixing plate are detachably connected to the rear axle and the driving motor respectively; according to the utility model, the technical effects of improving the stability of the driving motor, improving the performance of an automobile, prolonging the service life of the automobile, and having good effects on the stability, vibration and driving feeling of the whole automobile are achieved.

Description

Technical Field

[0001] The utility model relates to the field of new energy vehicles, and in particular to a drive motor mounting bracket for a low-speed new energy electric vehicle. Background Art

[0002] A drive motor is a device that converts electrical energy into mechanical energy and is used to drive the movement of various mechanical equipment. A drive motor is usually composed of components such as a power supply, a stator, a rotor and an output shaft, and is widely used in the production and manufacturing of new energy vehicles.

[0003] The Chinese invention patent with patent number CN109849589B discloses an electric vehicle rear-drive structure with an integral drive rear axle. The rear-drive structure of this patent changes the existing rear-drive structure in which the drive rear axle bears the weight of the powertrain. The powertrain mounting track bears the weight of the powertrain, which reduces the dead weight of the rear axle, realizes the adjustment of the powertrain layout position, increases the layout and assembly space of the power battery pack, improves the strength and load of the integral drive rear axle, and at the same time reduces the resonance phenomenon caused by the drive motor installed on the rear axle in the existing integral rear axle, thereby improving the stability of the entire vehicle.

[0004] During the actual installation and assembly process of the above scheme, the front end cover of the drive motor is provided with four fixing points. For the fixation of the drive motor, the existing installation is mainly through hard connection and assembly between the front end of the drive motor and the rear axle bolts. Apart from this, the drive motor has no other installation and fixation. Therefore, during the movement of the vehicle, the installed drive motor has poor stability, which affects the performance and service life of the car, and is extremely harmful to the safety of the entire vehicle. At the same time, it has a great impact on the stability, vibration and driving experience of the entire vehicle. Summary of the invention

[0005] The present application provides a low-speed new energy electric vehicle drive motor mounting bracket, which effectively solves the problem in the prior art that the drive motor has poor stability after installation, affects the performance and service life of the vehicle, and has a significant impact on the stability, vibration and driving experience of the entire vehicle. It achieves the technical effect of enhancing its stability, improving the performance and service life of the vehicle, and having a good effect on the stability, vibration and driving experience of the entire vehicle.

[0006] The present application provides a low-speed new energy electric vehicle drive motor mounting bracket, comprising a rear axle arranged between a left drive wheel and a right drive wheel, a drive motor for driving the left drive wheel and the right drive wheel, and a motor bracket;

[0007] The right end cover of the driving motor is connected to the rear axle by threaded fitting;

[0008] The motor bracket is arranged on the left side of the driving motor and in front of the rear axle;

[0009] The motor bracket includes a fixing plate 1 and a fixing plate 2 for fixing the drive motor on the rear axle, the fixing plate 1 and the fixing plate 2 are vertically fixedly connected, and the fixing plate 1 and the fixing plate 2 are respectively connected to the rear axle and the drive motor in a detachable manner.

[0010] Furthermore, the fixing plate 1 is a square structure and a waist-shaped hole 1 is opened on its front side, and the waist-shaped hole 1 is evenly arranged up and down.

[0011] Furthermore, the second fixing plate is a U-shaped structure and a waist-shaped hole second matching with the driving motor is opened at the upper part of the shorter section thereof, and a positioning hole for installation and positioning is opened at the bottom of the second fixing plate.

[0012] Furthermore, the fixing plate 1 and the rear axle, as well as the fixing plate 2 and the driving motor are connected by means of bolt and nut matching.

[0013] Furthermore, a plurality of reinforcing ribs are commonly provided at the vertical connection between the fixing plate 1 and the fixing plate 2, and the reinforcing ribs are evenly arranged up and down.

[0014] Furthermore, a vibration damper is provided between the second fixing plate and the driving motor, and between the first fixing plate and the rear axle.

[0015] Preferably, the vibration damper is a rubber pad.

[0016] Preferably, the motor bracket is an aluminum alloy part.

[0017] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0018] This patent effectively solves the problem in the prior art that the drive motor has poor stability after installation, affects the performance and service life of the car, and has a great impact on the stability, vibration and driving experience of the whole vehicle by setting a bracket body, fixing holes and waist-shaped holes. The installation process of the drive motor becomes simple and easy to operate through the combination of bolts and nuts, and the fixing effect is good, achieving the technical effect of improving the stability of the drive motor, increasing the service life, and having a good effect on the stability, vibration and driving experience of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the low-speed new energy electric vehicle drive motor mounting bracket of the utility model.

[0020] Figure 2 The utility model is a schematic diagram of the assembly of the rear axle, the drive motor and the motor bracket of the low-speed new energy electric vehicle drive motor mounting bracket.

[0021] Figure 3It is a three-dimensional structural schematic diagram of a motor bracket of a low-speed new energy electric vehicle drive motor mounting bracket of the utility model.

[0022] In the figure: 100, rear axle; 200, drive motor; 300, motor bracket; 310, fixing plate 1; 311, waist-shaped hole 1; 320, fixing plate 2; 321, waist-shaped hole 2; 322, positioning hole; 330, reinforcing rib; 340, vibration damping body. DETAILED DESCRIPTION

[0023] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0024] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific implementation methods and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] Embodiment 1: Figure 1-Figure 3 As shown, the present application discloses a low-speed new energy electric vehicle drive motor mounting bracket, comprising a rear axle 100 disposed between a left drive wheel and a right drive wheel, a drive motor 200 for driving the left drive wheel and the right drive wheel, and a motor bracket 300;

[0027] The right end cover of the driving motor 200 is connected to the rear axle 100 by threaded fitting;

[0028] The motor bracket 300 is arranged on the left side of the driving motor 200 and in front of the rear axle 100;

[0029] The motor bracket 300 includes a fixing plate 1 310 and a fixing plate 2 320 for fixing the drive motor 200 on the rear axle 100. The fixing plate 1 310 and the fixing plate 2 320 are vertically fixedly connected. The fixing plate 1 310 and the fixing plate 2 320 are respectively connected to the rear axle 100 and the drive motor 200 in a detachable manner.

[0030] The fixing plate 1 310 is a square structure and has a waist-shaped hole 1 311 formed on its front side. The waist-shaped holes 311 are evenly arranged up and down.

[0031] The second fixing plate 320 is a U-shaped structure, and a waist-shaped hole 321 is provided on the upper part of the shorter section thereof to match the drive motor 200, and a positioning hole 322 for installation and positioning is provided on the bottom of the second fixing plate 320. The second fixing plate 320 with a U-shaped structure can better fit the fixing surface of the end cover of the drive motor 200, so that the patent can adapt to motors of different specifications, and can improve the scope of application of the patent while ensuring stability.

[0032] The fixing plate 1 310 and the rear axle 100, and the fixing plate 2 320 and the drive motor 200 are connected by bolt and nut matching. This patent uses a detachable mounting method of bolt and nut matching, so that when the motor bracket 300 is damaged, only the fixing bolts and nuts on the motor bracket 300 need to be removed and replaced with a new motor bracket 300, which reduces the cost of later maintenance and repair and increases the versatility of the motor bracket 300.

[0033] The motor bracket 300 is an aluminum alloy part; aluminum alloy has the advantages of light weight and good formability.

[0034] The specific assembly process of the low-speed new energy electric vehicle drive motor mounting bracket of the embodiment of the present application is as follows: first, use a fixing bolt and pass it through the positioning hole 322 and the waist-shaped hole 321 on the second fixing plate 320 and the drive motor 200 by threaded connection to install and fix; then, use a fixing bolt and pass it through the waist-shaped hole 1 311 on the second fixing plate 320 and the rear axle 100 bracket by nuts to finally complete the complete fixed assembly of the drive motor 200, thereby ensuring the stability of the installation of the drive motor 200.

[0035] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: the present application effectively solves the problem of poor stability of the drive motor 200 after installation and affecting the performance and service life of the car in the prior art by setting a motor bracket 300, thereby achieving the technical effect of improving the stability of the drive motor 200 and increasing its service life.

[0036] Embodiment 2: A low-speed new energy electric vehicle drive motor mounting bracket in the above embodiment. In order to enhance the inherent strength and vibration reduction of the drive motor mounting bracket, the embodiment of the present application is optimized to a certain extent on the basis of the above embodiment.

[0037] like Figure 3As shown, a plurality of reinforcing ribs 330 are provided at the vertical connection between the fixing plate 1 310 and the fixing plate 2 320, and the reinforcing ribs 330 are evenly arranged up and down. By providing a plurality of groups of reinforcing ribs 330, the bending strength and shear strength of the motor bracket 300 structure can be enhanced, the bearing capacity and earthquake resistance can be effectively improved, and the safety and stability of the structure can be improved.

[0038] A vibration damper 340 is provided between the second fixing plate 320 and the drive motor 200, and between the first fixing plate 310 and the rear axle 100; the vibration damper 340 is a rubber pad. In this embodiment, the vibration damper 340 is provided as a rubber pad. Rubber has a good mitigating effect on the propagation of sound and vibration, and can maintain good elasticity in a wide temperature range, further reducing the vibration effect of the drive motor itself on the whole vehicle, solving the problems of no longer generating abnormal noise caused by vibration, and having a great impact on the stability, vibration and driving experience of the whole vehicle, and further enhancing the performance of this patent.

[0039] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: the present application sets a vibration damping body 340 to improve the vibration damping effect. Since the drive motor 200 will generate large vibration and noise when working, the setting of the vibration damping body 340 can effectively reduce the direct collision between the drive motor 200 and the motor bracket 300 when vibrating, thereby reducing the vibration impact of the drive motor itself on the whole vehicle, so that the drive motor 200 no longer generates problems such as abnormal noise caused by vibration after operation, further improving the vehicle safety and the stability of the whole vehicle, and extending the service life of the drive motor 200 and the motor bracket 300.

[0040] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A low-speed new energy electric vehicle drive motor mounting bracket, characterized in that: It comprises a rear axle (100) arranged between a left driving wheel and a right driving wheel, a driving motor (200) for driving the left driving wheel and the right driving wheel to operate, and a motor bracket (300); The right end cover of the driving motor (200) is connected to the rear axle (100) by means of threaded fitting; The motor bracket (300) is arranged on the left side of the driving motor (200) and in front of the rear axle (100); The motor bracket (300) comprises a fixing plate 1 (310) and a fixing plate 2 (320) for fixing the drive motor (200) on the rear axle (100); the fixing plate 1 (310) and the fixing plate 2 (320) are vertically fixedly connected; the fixing plate 1 (310) and the fixing plate 2 (320) are respectively connected to the rear axle (100) and the drive motor (200) in a detachable manner.

2. A low-speed new energy electric vehicle drive motor mounting bracket as claimed in claim 1, characterized in that: The fixing plate 1 (310) is a square structure and has a waist-shaped hole 1 (311) on its front side, and the waist-shaped hole 1 (311) is evenly arranged up and down.

3. A low-speed new energy electric vehicle drive motor mounting bracket as claimed in claim 2, characterized in that: The second fixing plate (320) is a U-shaped structure and a waist-shaped hole (321) matching with the driving motor (200) is provided at the upper part of the shorter section thereof, and a positioning hole (322) for installation and positioning is provided at the bottom of the second fixing plate (320).

4. A low-speed new energy electric vehicle drive motor mounting bracket as claimed in claim 3, characterized in that: The fixing plate 1 (310) and the rear axle (100), as well as the fixing plate 2 (320) and the driving motor (200) are connected by means of bolt and nut matching.

5. A low-speed new energy electric vehicle drive motor mounting bracket as claimed in claim 4, characterized in that: A plurality of reinforcing ribs (330) are provided at the vertical connection between the first fixing plate (310) and the second fixing plate (320), and the reinforcing ribs (330) are evenly arranged up and down.

6. A low-speed new energy electric vehicle drive motor mounting bracket as claimed in claim 5, characterized in that: A vibration damping body (340) is provided between the second fixing plate (320) and the driving motor (200), and between the first fixing plate (310) and the rear axle (100).

7. A low-speed new energy electric vehicle drive motor mounting bracket as claimed in claim 6, characterized in that: The vibration damping body (340) is a rubber pad.

8. A low-speed new energy electric vehicle drive motor mounting bracket as claimed in claim 1, characterized in that: The motor bracket (300) is an aluminum alloy part.

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