High-power motor for pure electric passenger car

Abstract

The utility model provides a high-power motor for a pure electric passenger car, which relates to the technical field of motors and comprises a motor body, and a motor rotating shaft is arranged in the motor body in a matched manner. When the motor is used, the filter assembly is used in cooperation, the filter screens are symmetrically arranged at the front end of the motor body, and the filter screens are located on the outer sides of the air inlet holes, so that when the motor body dissipates heat and external air enters the interior of the motor body through the filter holes in the surface of the filter screens, the filter screens can block dust and impurities in the air; according to the high-power motor provided by the utility model, a plurality of air inlets are arranged on the motor main body, so that a filtering effect is achieved, dust is prevented from entering the motor main body from the plurality of air inlets, dust is prevented from adhering to the interior of the high-power motor, and the use performance of the motor is not influenced; and more dust is attached to the surface of the internal structure of the motor, so that the use performance of the motor is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a high-power motor for pure electric buses. Background Art

[0002] A pure electric bus, or pure electric bus, is a bus that is powered by an onboard electrical system, uses an electric motor to drive the wheels, and complies with all road traffic and safety regulations. These vehicles are powered by batteries and replace fuel engines with electric motors, resulting in low noise, zero pollution, and a single source of electrical energy. In existing technology, the power of a motor is closely tied to its size. Small motors are easy to install and simple in structure, but they also have low power. Large motors, while powerful, have complex structures and generate high stator heat, making them difficult to install and maintain. As motor power increases, the heat generated during operation also increases. Inadequate heat dissipation can easily lead to motor burnout.

[0003] In the prior art, such as the high-power motor of Chinese patent CN204118930U, it includes a motor housing and a mounting cover. A rotating shaft is provided between the motor housing and the mounting cover, a rotor is provided on the surface of the rotating shaft, a stator is provided on the inner wall of the motor housing, a winding is wound around the stator, and the length of the winding is at least three-quarters of the length of the motor housing, and four reinforcing ribs are evenly provided on the outer wall surface of the motor housing, a number of heat dissipation strips are evenly provided on both sides of the reinforcing ribs, and heat dissipation holes are evenly provided on the end surface of the motor housing opposite to the mounting cover and the surface of the mounting cover; the outer surface of the motor housing of the utility model is provided with reinforcing ribs and heat dissipation strips, and the end surface of the motor housing opposite to the mounting cover and the surface of the mounting cover are evenly provided with heat dissipation holes, and the length of the winding is also increased. Therefore, the motor of the utility model has simple structure, convenient installation, high power, low temperature rise, etc.

[0004] In the above patent, although reinforcing ribs and heat dissipation strips are provided on the outer surface of the motor housing, and heat dissipation holes are evenly provided on the end surface of the motor housing opposite to the mounting cover and the surface of the mounting cover, thereby increasing the ventilation and heat dissipation effects of the motor housing and strengthening the strength of the motor housing, a large number of heat dissipation holes easily allow dust and impurities in the air to enter the interior of the motor. After long-term use, a large amount of dust adheres to the surface of the internal structure of the motor, which will affect the performance of the motor. Therefore, it is necessary to propose a new type of high-power motor for pure electric buses. Utility Model Content

[0005] The utility model mainly provides a high-power motor for pure electric buses, which is convenient for protecting the motor and preventing dust in the air from entering the motor during heat dissipation and affecting the performance of the motor.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a high-power motor for a pure electric bus, comprising a motor body, wherein a motor shaft is provided inside the motor body; a filter assembly, wherein the filter assembly is fixedly connected to the front surface of the motor body, the filter assembly comprises a fixed ring block, wherein the fixed ring block is fixedly connected to the front surface of the motor body, a filter screen is symmetrically provided on the inner surface of the fixed ring block, the front surface of the fixed ring block is symmetrically fixedly connected to a fixing rod, the front surfaces of the two fixing rods are fixedly connected to a T-block, the inner surfaces of the two T-blocks are symmetrically slidably connected to a limit rod, and the outer surfaces of the plurality of limit rods are fixedly connected to the limit blocks.

[0007] Preferably, a spring is fixedly connected between the limit block and the T-block, and the spring is located on the outside of the limit rod, so that the limit rod can limit the spring when it is stretched or contracted to prevent the position of the spring from shifting.

[0008] Preferably, the outer surface of the limit rod slides through the outer surface of the filter, and the rear surface of the limit block fits with the front surface of the filter, so that the limit block can be pushed to move under the action of the rebound force of the spring so that the limit block contacts the fixed filter.

[0009] Preferably, the center of the rear surface of the motor shaft is fixedly connected to a mounting column, the outer surface of the mounting column is fixedly connected to a mounting ring block, and the outer surface of the mounting ring block is equidistantly fixedly connected to multiple fan blades. By fixing the mounting column to the rear surface of the motor shaft, when the mounting column is driven to rotate, the multiple fan blades equidistantly fixed on the surface of the mounting ring block will rotate synchronously, thereby achieving the purpose of heat dissipation.

[0010] Preferably, a plurality of air inlet holes are equidistantly provided on the front surface of the motor body, and a plurality of exhaust holes are equidistantly provided on the rear surface of the motor body, so that when the fan blades are rotating, external air enters the interior of the motor body from the air inlet holes for cooling, and the internal heat flows backward and is discharged from the exhaust holes, forming a heat dissipation duct to dissipate heat from the motor body.

[0011] Preferably, the outer surface of the motor body is fixedly connected to a protective shell near the rear surface, and a plurality of square holes are evenly provided on the rear surface of the protective shell. The protective shell is located on the outside of the plurality of fan blades and plays a protective role. A plurality of square holes are evenly provided on its surface, which can connect the outside with the inside and facilitate the discharge of hot air.

[0012] Preferably, the outer surface of the motor body is symmetrically fixed with support legs, and the support legs are located below the motor body. Matching bolts are used to fix the two support legs to the object, which facilitates installation.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the utility model, when in use, through the coordinated use of the filter assembly, the filter screen is symmetrically arranged at the front end of the motor body, and the filter screen is located on the outside of the multiple air inlet holes. When the motor body is dissipating heat, when the filter holes on the surface of the external air filter screen enter the interior of the motor body, the filter screen will block the dust and impurities in the air, and play a filtering role, preventing dust from entering the interior of the motor body through the multiple air inlet holes, causing a lot of dust to adhere to the interior of the high-power motor, affecting the performance of the motor, and solving the problem in the background technology that a large number of heat dissipation holes easily allow dust and impurities in the air to enter the interior of the motor, and after long-term use, a lot of dust adheres to the surface of the internal structure of the motor, which affects the performance of the motor.

[0015] 2. In the present invention, a protective shell is fixedly connected to the outer surface of the motor body. The protective shell is located on the outside of the plurality of fan blades, thereby playing a protective role and preventing the fan blades from colliding with objects and being damaged. The utility model is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model proposes a three-dimensional diagram of a high-power motor for a pure electric bus;

[0017] Figure 2 The utility model proposes a schematic diagram of the main structure of a high-power motor for a pure electric bus;

[0018] Figure 3 The utility model provides a structural diagram of a filter assembly for a high-power motor used in a pure electric bus;

[0019] Figure 4 The utility model proposes a schematic diagram of the filter structure of a high-power motor for a pure electric bus;

[0020] Figure 5 The utility model provides a schematic diagram of the partial structure of a high-power motor for a pure electric bus.

[0021] Legend: 1. Motor body; 2. Filter assembly; 201. Fixing ring block; 202. Filter screen; 203. T-block; 204. Limit rod; 205. Fixing rod; 206. Spring; 207. Limit block; 3. Protective shell; 4. Motor shaft; 5. Air inlet; 6. Mounting column; 7. Mounting ring block; 8. Fan blade; 9. Exhaust hole; 10. Support foot; 11. Square hole. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] See also Figure 1-5 The utility model provides a technical solution: a high-power motor for a pure electric bus, comprising a motor body 1, an internal supporting motor shaft 4 of the motor body 1; a filter assembly 2, the filter assembly 2 being fixedly connected to the front surface of the motor body 1, the filter assembly 2 comprising a fixed ring block 201, the fixed ring block 201 being fixedly connected to the front surface of the motor body 1, a filter screen 202 being symmetrically arranged on the inner surface of the fixed ring block 201, a fixed rod 205 being symmetrically fixedly connected to the front surface of the fixed ring block 201, the front surfaces of the two fixed rods 205 being fixedly connected to a T-block 203, the inner surfaces of the two T-blocks 203 being symmetrically slidably connected to a limit rod 204, and the outer surfaces of the plurality of limit rods 204 being fixedly connected to a limit block 207.

[0025] like Figure 3 As shown, a spring 206 is fixedly connected between the limit block 207 and the T-block 203. The spring 206 is located on the outside of the limit rod 204, so that the limit rod 204 can limit the spring 206 when it is stretched or contracted to prevent the position of the spring 206 from shifting.

[0026] like Figure 3 As shown, the outer surface of the limit rod 204 slides through the outer surface of the filter 202, and the rear surface of the limit block 207 fits with the front surface of the filter 202, so that the limit block 207 can be pushed to move under the action of the rebound force of the spring 206 so that the limit block 207 contacts the fixed filter 202.

[0027] like Figure 5 As shown, the center of the rear surface of the motor shaft 4 is fixedly connected to the mounting column 6, the outer surface of the mounting column 6 is fixedly connected to the mounting ring block 7, and the outer surface of the mounting ring block 7 is evenly fixedly connected to multiple fan blades 8. By fixing the mounting column 6 on the rear surface of the motor shaft 4, when it drives the mounting column 6 to rotate, the multiple fan blades 8 evenly fixedly connected on the surface of the mounting ring block 7 will rotate synchronously, thereby playing a role in heat dissipation.

[0028] like Figure 2 and Figure 5 As shown, a plurality of air inlet holes 5 are equidistantly provided on the front surface of the motor body 1, and a plurality of exhaust holes 9 are equidistantly provided on the rear surface of the motor body 1, so that when the fan blades 8 are rotating, external air enters the interior of the motor body 1 from the air inlet holes 5 for cooling, and the internal heat flows backward and is discharged from the exhaust holes 9, forming a heat dissipation duct to dissipate heat from the motor body 1.

[0029] like Figure 1-2 and Figure 5 As shown, the outer surface of the motor body 1 is fixedly connected to the protective shell 3 near the rear surface, and a plurality of square holes 11 are evenly provided on the rear surface of the protective shell 3. The protective shell 3 is located on the outside of the plurality of fan blades 8 and plays a protective role. A plurality of square holes 11 are evenly provided on its surface, which can connect the outside with the inside and facilitate the discharge of hot air.

[0030] like Figure 1-2 and Figure 5 As shown, the outer surface of the motor body 1 is symmetrically fixed with support legs 10, which are located below the motor body 1. Matching bolts are used to fix the two support legs 10 to the object, which facilitates installation.

[0031] The method of use and working principle of this device: When a high-power motor is used in a pure electric bus, the high-power motor is fixed inside the pure electric bus by two supporting legs 10, and multiple limit rods 204 are pulled in turn to make them slide out on the inner surface of the T-block 203, driving the limit block 207 to squeeze the spring 206, causing it to deform and shrink, so that it is convenient for personnel to fit the filter 202 into the inner surface of the fixed ring block 201. Under the elastic reset action of the spring 206, the spring 206 pushes the limit block 207 to move backward, so that the limit rod 204 will penetrate the outer surface of the filter 202, playing a role of limiting and fixing. When the motor is working, When the internal stator and rotor surfaces emit heat, the motor shaft 4 drives the mounting column 6 to rotate synchronously. Under the action of the coaxiality, the multiple fan blades 8 fixed on the outer surface of the mounting ring block 7 rotate synchronously, causing negative pressure to be generated inside the protective shell 3, which will absorb the heat inside the motor body 1 from the multiple exhaust holes 9 and discharge it outward from the multiple square holes 11. At the same time, when the external cold air passes through the holes on the surface of the filter 202, it will block the dust and impurities in the air, playing a filtering role, preventing dust from entering the interior of the motor body 1 from the multiple air inlet holes 5, causing more dust to adhere to the inside of the high-power motor, thereby affecting the performance of the motor.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A high-power motor for a pure electric bus, comprising a motor body (1), characterized in that: A motor shaft (4) is provided inside the motor body (1); A filter assembly (2) is fixedly connected to the front surface of a motor body (1), and the filter assembly (2) comprises a fixed ring block (201), the fixed ring block (201) is fixedly connected to the front surface of the motor body (1), a filter screen (202) is symmetrically arranged on the inner surface of the fixed ring block (201), the front surface of the fixed ring block (201) is symmetrically fixedly connected to a fixing rod (205), the front surfaces of two fixing rods (205) are fixedly connected to a T-shaped block (203), the inner surfaces of the two T-shaped blocks (203) are symmetrically slidably connected to a limiting rod (204), and the outer surfaces of a plurality of limiting rods (204) are fixedly connected to a limiting block (207).

2. The high-power motor for a pure electric bus according to claim 1, characterized in that: A spring (206) is fixedly connected between the limiting block (207) and the T-shaped block (203), and the spring (206) is located outside the limiting rod (204).

3. The high-power motor for a pure electric bus according to claim 2, characterized in that: The outer surface of the limiting rod (204) slides through the outer surface of the filter screen (202), and the rear surface of the limiting block (207) is in contact with the front surface of the filter screen (202).

4. The high-power motor for a pure electric bus according to claim 3, characterized in that: The center of the rear surface of the motor shaft (4) is fixedly connected to a mounting column (6), the outer surface of the mounting column (6) is fixedly connected to a mounting ring block (7), and the outer surface of the mounting ring block (7) is fixedly connected to a plurality of fan blades (8) at equal intervals.

5. The high-power motor for a pure electric bus according to claim 4, characterized in that: The front surface of the motor body (1) is provided with a plurality of air inlet holes (5) at equal intervals, and the rear surface of the motor body (1) is provided with a plurality of air exhaust holes (9) at equal intervals.

6. The high-power motor for a pure electric bus according to claim 5, characterized in that: The outer surface of the motor body (1) is fixedly connected to a protective shell (3) near the rear surface, and the rear surface of the protective shell (3) is evenly provided with a plurality of square holes (11).

7. The high-power motor for a pure electric bus according to claim 6, characterized in that: The outer surface of the motor body (1) is symmetrically fixedly connected to support legs (10), and the support legs (10) are located below the motor body (1).

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