Fixed-size adjustable driving motor support, frame and automobile

Abstract

The utility model belongs to the technical field of motor supports, and discloses a fixed-size adjustable driving motor support, a frame and an automobile, which comprise a motor support fixing seat, a first positioning connecting plate and a second positioning connecting plate, the motor support fixing seat is of a double-layer cross-shaped partition plate supporting structure, one face of the motor support fixing seat is fixed to a frame or an axle, and the first positioning connecting plate and the second positioning connecting plate are fixed to the other face of the motor support fixing seat. According to the utility model, the bidirectional elasticity can buffer the vibration of the motor during the running of a vehicle, change the original vibration frequency, reduce the vibration amplitude of the motor, and force the motor to stop vibration quickly. Therefore, fatigue damage of a motor fixing point is effectively reduced, and the service life of the driving motor is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor brackets, and particularly relates to a fixed-size adjustable driving motor bracket, a vehicle frame and a car. Background Art

[0002] Electric vehicles are becoming more and more popular. The motor in electric vehicles is the key power unit. Its fixation is the guarantee of stable operation of the vehicle. In the prior art, there are integrated lower drive motor suspension brackets, frame-fixed drive motor brackets, and beam-type drive motor brackets;

[0003] Among them, the integrated lower drive motor suspension bracket is mainly used to improve the difficulty of assembly in a small space and to improve the stress concentration problem after the motor is assembled on a single beam. However, this structure is complex and only applicable to a single vehicle model. It has many fixing points and a long assembly time. The frame-fixed drive motor bracket has a lower beam and a suspension rubber pad. This structure requires a longitudinal beam and a cross beam. It mainly improves the problem of stress concentration on the beam. It has a large number of accessories, is complex to assemble, and takes a long time to assemble. The crossbeam-type drive motor bracket uses a crossbeam-like structure. This type of structure uses a lot of materials, has a complex structure, and is heavy, which increases the overall mass of the vehicle. It is complex to assemble and difficult for one person to assemble. Utility Model Content

[0004] The utility model aims to provide a fixed-size adjustable drive motor bracket, a frame and a car to solve the problems that the drive motor bracket cannot be applied to a variety of drive motors, is difficult to assemble, the fixing bolts are easy to loosen, and the drive motor vibrates for a long time during vehicle driving.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fixed-size adjustable drive motor bracket includes a motor bracket fixing seat, a first positioning connecting plate and a second positioning connecting plate; the motor bracket fixing seat is a double-layer cross-shaped partition support structure, one side of the motor bracket fixing seat is fixed on a vehicle frame or axle, and the first positioning connecting plate and the second positioning connecting plate are both fixed on the other side of the motor bracket fixing seat.

[0007] Furthermore, the double-layer cross-shaped partition support structure includes adjusting the porous plate, the bottom plate and the support plate; adjusting the porous plate and the bottom plate into a cross-shaped arrangement, and adjusting the porous plate and the bottom plate to be fixedly connected via the support plate.

[0008] Furthermore, the support plate adopts a vertical surface connection method to connect the adjustment porous plate and the bottom plate, and after the connection, space is reserved for the connection point of the first positioning connection plate and the second positioning connection plate.

[0009] Furthermore, the supporting plate, the adjusting porous plate and the bottom plate are connected by welding.

[0010] Furthermore, the bottom plate is a long strip plate, and the bottom plate is fixedly connected to the vehicle frame or the vehicle axle; the first positioning connecting plate and the second positioning connecting plate are connected to the adjusting porous plate.

[0011] Furthermore, the first positioning connecting plate and the second positioning connecting plate are both metal elastic plates, and the elasticity of one of the elastic plates is greater than the elasticity of the other elastic plate.

[0012] Furthermore, the first positioning connecting plate and the second positioning connecting plate are both provided with bending extension sections at the connection points with the motor bracket fixing seat, and the bending extension sections are fixedly connected to different holes on the adjustment porous plate for adjusting the size.

[0013] Furthermore, the first positioning connecting plate and the second positioning connecting plate are U-shaped, and buffer pads are provided on the contact surfaces with the motor.

[0014] A vehicle frame comprises the fixed-size adjustable driving motor bracket.

[0015] A car comprises the fixed-size adjustable driving motor bracket.

[0016] Compared with the prior art, the utility model has the following technical effects:

[0017] The utility model adopts a solution combining a fixed adjustment mode and mechanics, and adapts to drive motors of different lengths within a certain range through fixed adjustment holes, and adapts to the length of the motor by fine-tuning using the elastic deformation of the metal material, and then uses the micro-deformation of the metal material to increase the tension on the fastening bolts, thereby increasing the friction on the surface of the fastening bolts, thereby reducing the falling off of the fastening bolts. In addition, the existence of bidirectional elasticity can buffer the vibration of the motor during vehicle driving, change the original vibration frequency, reduce the vibration amplitude of the motor, and force the motor to stop vibrating quickly. Thereby effectively reducing the fatigue damage of the motor fixing point and increasing the service life of the drive motor.

[0018] This design introduces carefully designed fixed adjustment holes on the motor mounting plate. These holes are not only standardized, but also have a certain length adjustment range, allowing users to make fine adjustments based on the motor shaft length without replacing the entire fixture, greatly improving adaptability and flexibility.

[0019] The utility model adopts two elastic connecting plates of the motor connected to the motor, one of which is a weak elastic positioning connecting plate, and the other is a strong elastic connecting plate. The weak elastic positioning connecting plate cooperates with the bolts to position the motor, and the strong elastic connecting plate will have a certain pre-tightening force after assembly, which can ensure that a certain pulling force will be applied to the fastening bolts after assembly, thereby ensuring that when the vehicle is running and vibrates, the bolts are in a stressed state, reducing the possibility of loosening and falling off. Secondly, the two elastic connecting plates use the pre-tightening force reserved during assembly to interfere with the frequency and amplitude of the motor's vibration, thereby making the motor more stable during vehicle driving.

[0020] By utilizing the elastic deformation characteristics of high-quality metal materials, when the motor is installed in place, the fine-tuning function of the adjustment hole combined with the natural rebound of the material can closely fit and slightly compress the motor housing to form a stable initial tightening state. This design not only ensures the accuracy of motor installation, but also further enhances the tension of the fastening bolts through micro-deformation, increases the friction of the contact surface, and effectively prevents the bolts from loosening and falling off during long-term use. The innovative combination of weak elastic positioning connecting plates and strong elastic connecting plates is used to form a set of two-way elastic shock absorption system. The weak elastic positioning connecting plate is mainly responsible for the initial positioning and stabilization of the motor, while the strong elastic connecting plate continuously applies tension to the fastening bolts through its built-in preload after assembly to ensure the stability of the bolts in a vibration environment. At the same time, the synergistic effect of the two connecting plates can absorb and disperse the energy generated by the motor vibration, reduce the vibration frequency and amplitude, quickly suppress vibration, and reduce the stress concentration at the motor fixing point, thereby extending the service life of the motor and its fixing structure.

[0021] The utility model has a simple structure, low assembly difficulty, focuses on practicality and convenience, has a compact structure and is easy to install, greatly reducing the assembly difficulty and subsequent maintenance costs. Users can quickly install and adjust without complex tools, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model.

[0023] Figure 2 This is a schematic diagram of the installation of the utility model. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example 1, please refer to Figure 1 A fixed-size adjustable drive motor bracket includes a motor bracket fixing seat 1, a first positioning connecting plate 2 and a second positioning connecting plate 3; the motor bracket fixing seat 1 is a double-layer cross-shaped partition support structure, one side of the motor bracket fixing seat 1 is fixed on the frame or the axle, and the first positioning connecting plate 2 and the second positioning connecting plate 3 are both fixed on the other side of the motor bracket fixing seat 1.

[0028] The utility model adapts to drive motors of different lengths within a certain range through fixed adjustment holes, and adapts to the length of the motor by fine-tuning the elastic deformation of the metal material, and then increases the tension on the fastening bolts by micro-deformation of the metal material, thereby increasing the friction on the surface of the fastening bolts, thereby reducing the falling off of the fastening bolts. In addition, the existence of bidirectional elasticity can buffer the vibration of the motor during vehicle driving, change the original vibration frequency, reduce the vibration amplitude of the motor, and force the motor to stop vibrating quickly. Thereby effectively reducing the fatigue damage of the motor fixing point and increasing the service life of the drive motor.

[0029] Embodiment 2, the utility model provides a fixed-size adjustable drive motor bracket, specifically comprising:

[0030] The drive motor bracket mainly consists of three parts:

[0031] 1-Motor bracket fixing seat: This part is fixed to the vehicle frame or axle through two round holes, providing strong support for the weak elastic positioning connecting plate and the strong elastic connecting plate, and adjusting the relative position of the weak elastic positioning connecting plate and the strong elastic connecting plate through the porous plate, so as to meet the function of fixed support for motors of different sizes; the specific structure is:

[0032] The double-layer cross-shaped partition support structure includes an adjustment porous plate 11, a bottom plate 12 and a support plate 13; the adjustment porous plate 11 and the bottom plate 12 are arranged in a cross shape, and the adjustment porous plate 11 and the bottom plate 12 are fixedly connected by the support plate 13.

[0033] The support plate 13 adopts a vertical surface connection method to connect the adjustment porous plate 11 and the bottom plate 12 , and after the connection, a space is reserved for the connection point of the first positioning connection plate 2 and the second positioning connection plate 3 .

[0034] The support plate 13, the adjustment porous plate 11 and the bottom plate 12 are connected by welding.

[0035] The bottom plate 12 is a long strip plate, and the bottom plate 12 is fixedly connected to the vehicle frame or the vehicle axle; the first positioning connecting plate 2 and the second positioning connecting plate 3 are connected to the adjusting porous plate 11 .

[0036] 2- Weakly elastic positioning connecting plate: It is connected to the porous plate of the motor bracket fixing seat through the bending at the bottom. By bending at different positions of the porous plate, it can adapt to motors of different lengths, but it is required to have a certain weak elasticity during assembly. This weak elasticity can ensure that the weakly elastic positioning connecting plate is always in a connected state when the driving motor vibrates during the driving process of the vehicle to prevent it from falling off naturally. The circular holes on the upper end of the weakly elastic positioning connecting plate correspond exactly to the fixing holes of the motor. These two circular holes also play a positioning role.

[0037] 3- Strong elastic connecting plate: The bottom is also connected to the motor bracket fixing seat by bending. The long strip hole on the upper part and the weak elastic positioning connecting plate are assembled at the fixing hole of the drive motor. The strong elastic connecting plate and the weak elastic connecting plate are connected by bolts to form a triangle. This structure is more stable and the connection is more secure. During assembly, there will be a pre-tightening force greater than the weak elastic positioning connecting plate. This pre-tightening force will have a certain tensile force, which can increase the bolt tension, increase friction, and reduce the risk of loosening. When the vehicle is driving and the drive motor is vibrating, the strong elastic connecting plate adjusts the vibration frequency and amplitude of the motor through the pre-tightening force, and also ensures that the fixing bolts are always in hand when the drive motor is vibrating.

[0038] The motor bracket fixing seat of the utility model adopts a double-layer cross-shaped partition support structure, which includes an adjustment porous plate, a bottom plate and a support plate, and these three parts are connected by welding; the adjustment porous plate can be connected to the motor elastic connection bracket, and the two can cooperate to select different hole positions according to the different lengths of the motor, so as to adapt to a variety of motors, reduce the number of brackets, and avoid waste of materials and funds; the bottom plate adopts a commonly used long strip plate, this structure is simple and easy to process, and can adapt to a variety of application places, convenient in the early assembly, and simple in later maintenance and disassembly; the support plate adopts a vertical surface connection method to connect the adjustment porous plate and the bottom plate. After the connection, space is reserved for the connection point of the motor elastic connection bracket, which can effectively avoid interference during installation. The welding method can adjust the natural frequency of the accessories and optimize NVH.

[0039] Embodiment 3, as Figure 2 As shown, the motor bracket fixing seat is fixed to the frame or axle by bolts, the weak elastic positioning connecting plate and the strong elastic connecting plate are connected to the motor bracket fixing seat by bending, and at the same time, the upper parts of the strong elastic connecting plate and the weak elastic connecting plate are connected to the motor by bolts.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A fixed-size adjustable drive motor bracket, characterized in that: The invention comprises a motor support fixing seat (1), a first positioning connecting plate (2) and a second positioning connecting plate (3); the motor support fixing seat (1) is a double-layer cross-shaped partition support structure, one side of the motor support fixing seat (1) is fixed on a vehicle frame or a vehicle axle, and the first positioning connecting plate (2) and the second positioning connecting plate (3) are both fixed on the other side of the motor support fixing seat (1).

2. The size-adjustable drive motor bracket according to claim 1, characterized in that: The double-layer cross-shaped partition support structure comprises an adjustment porous plate (11), a bottom plate (12) and a support plate (13); the adjustment porous plate (11) and the bottom plate (12) are arranged in a cross shape, and the adjustment porous plate (11) and the bottom plate (12) are fixedly connected via the support plate (13).

3. The size-adjustable drive motor bracket according to claim 2, characterized in that: The support plate (13) adopts a vertical surface connection method to connect the adjustment porous plate (11) and the bottom plate (12), and after the connection, a space is reserved for the connection point of the first positioning connection plate (2) and the second positioning connection plate (3).

4. The size-adjustable drive motor bracket according to claim 3, characterized in that: The support plate (13), the adjustment porous plate (11) and the bottom plate (12) are connected by welding.

5. The size-adjustable drive motor bracket according to claim 2, characterized in that: The bottom plate (12) is a long strip plate, and the bottom plate (12) is fixedly connected to the vehicle frame or the vehicle axle; the first positioning connecting plate (2) and the second positioning connecting plate (3) are connected to the adjusting porous plate (11).

6. The size-adjustable drive motor bracket according to claim 1, characterized in that: The first positioning connection plate (2) and the second positioning connection plate (3) are both metal elastic plates, and the elasticity of one of the elastic plates is greater than the elasticity of the other elastic plate.

7. The size-adjustable drive motor bracket according to claim 5, characterized in that: The first positioning connecting plate (2) and the second positioning connecting plate (3) are both provided with bending extension sections at the connection points with the motor bracket fixing seat (1), and the bending extension sections are fixedly connected to different holes on the adjustment porous plate (11) for adjusting the size.

8. The size-adjustable drive motor bracket according to claim 1, characterized in that: The first positioning connection plate (2) and the second positioning connection plate (3) are U-shaped, and buffer pads are provided on the contact surfaces with the motor.

9. A vehicle frame, characterized in that: It comprises a fixed-size adjustable drive motor bracket as described in any one of claims 1 to 8.

10. An automobile, characterized in that: It comprises a fixed-size adjustable drive motor bracket as described in any one of claims 1 to 8.

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