CN202068274U - Electric car external rotor generator - Google Patents

Abstract

The utility model discloses an electric car outer rotor generator, which is arranged on the driven wheel of the electric car. The outer rotor generator includes: an inner stator, which is fixedly connected to the driven axle of the electric car; and the outer rotor, which is rotatably connected to the driven axle of the electric car, and is sleeved on the outside of the inner stator; wherein, multiple sets of winding coils are arranged on the outer periphery of the inner stator, and the The inner cylinder wall of the outer rotor is also provided with a plurality of permanent magnets uniformly distributed at predetermined intervals. When the outer rotor rotates relative to the inner stator, a magnetic induction line cutting movement is generated between the winding coil and the permanent magnets. According to the utility model, the kinetic energy of the high-speed rotation of the driven wheel can be effectively used to generate electricity when the car is running, and the mechanical energy can be reasonably converted into electrical energy.

Description

Electric car external rotor generator

technical field

The utility model relates to an outer rotor generator, in particular to an outer rotor generator which utilizes a driven wheel of an electric car to generate electricity.

Background technique

As we all know, during the running of the car, the power output by the engine is converted by the transmission system and then transmitted to the driving wheels, so as to generate driving force for the car. Under the action of the driving force of the driving wheel, the driven wheel of the car is also pulled and rotated. However, during the operation of the car, the car instrument, lighting, and other auxiliary electrical appliances all need to consume electric energy, and only rely on the power of the car. The battery is used for power supply, which consumes a lot of power and the energy utilization rate is not ideal. Considering that the driven wheel has a relatively high rotation speed when the car is running, however, the driven wheel only idles at high speed, and the utilization rate of its kinetic energy is low, resulting in a certain degree of waste of mechanical energy. Therefore, using the kinetic energy of the high-speed rotation of the driven wheel of the automobile to generate electricity, and converting the kinetic energy into electric energy to generate auxiliary electric energy for use by some automobile electrical appliances, is a problem that needs to be considered and solved urgently.

Utility model content

The technical problem to be solved by the utility model is to provide an electric car outer rotor generator, which can effectively use the high-speed rotation of the driven wheel when the car is running to generate electricity, and reasonably convert mechanical energy into electrical energy. The structure is simple, scientific and environmentally friendly, and the use Long life.

In order to achieve the above purpose, the utility model provides an electric car outer rotor generator, which is arranged on the driven wheel of the electric car, and the outer rotor generator includes: an inner stator fixedly connected to the electric car on the driven axle; and the outer rotor, which is rotatably connected to the driven axle of the electric car, and sleeved on the outside of the inner stator; wherein, there are multiple sets on the outer periphery of the inner stator Winding coils, the inner cylinder wall of the outer rotor is also provided with a plurality of permanent magnets uniformly distributed at predetermined intervals, when the outer rotor rotates relative to the inner stator, cutting occurs between the winding coils and the permanent magnets Magnetic lines of motion.

Further, the outer rotor further includes: an outer rotor body connected to the driven axle through a first outer rotor bearing and located outside the inner stator; and an outer rotor cover plate through a second outer rotor bearing It is connected to the driven axle and located on the inside of the inner stator; wherein, the outer rotor body and the outer rotor cover are snap-fitted.

Further, an oil seal is provided on the outer side of the first outer rotor bearing and/or the second outer rotor bearing.

Further, the outer periphery of the outer rotor body is detachably connected to a hub through a wheel coupling screw, and a tire is sheathed on the hub.

Further, the outer rotor generator also includes an electric disc brake, which is arranged on the driven axle to brake the outer rotor.

According to the outer rotor generator of the utility model, the kinetic energy of the driven wheel can be effectively used to generate electricity when the automobile is running, and the mechanical energy can be converted into electric energy reasonably, so as to further provide auxiliary electric energy for the automobile, avoiding waste of kinetic energy, and has a simple structure. It is scientific and environmentally friendly, so it has a wide range of practicability. At the same time, due to the detachable connection between the outer rotor and the hub, the outer rotor generator of the present invention is convenient to disassemble, the maintenance process is simplified, and its service life is effectively prolonged, so the economy is better.

Description of drawings

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. in:

Fig. 1 is the structural representation of electric car outer rotor generator of the utility model;

Fig. 2 is the exploded schematic diagram of electric car outer rotor generator of the utility model; And

Fig. 3 is a side view of the outer rotor body of the electric car outer rotor generator of the present invention.

Detailed ways

Below, the utility model is described in detail through exemplary embodiments. It is to be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

Referring to Fig. 1, it shows a kind of electric car outer rotor generator 10 according to the utility model, is arranged on the driven wheel of described electric car, and wherein said outer rotor generator 10 comprises: inner stator 11, fixed connected to the driven axle 20 of the electric car; and the outer rotor 12 is rotatably connected to the driven axle 20 of the electric car and sleeved on the outside of the inner stator 11 . Wherein, the inner stator 11 also includes multiple sets of winding coils 31, and the multiple sets of winding coils 31 are arranged on the outer periphery of the inner stator 11; the outer rotor 12 is also provided with a plurality of permanent magnets 32, so The plurality of permanent magnets 32 are evenly distributed on the inner cylinder wall of the outer rotor 12 at predetermined intervals to serve as a rotating magnetic field. When the outer rotor 12 rotates relative to the inner stator 11 , the cutting magnetic induction line movement is generated between the winding coil 31 and the permanent magnet 32 , and electric energy is generated according to the principle of electromagnetic induction. It should be understood that the above-mentioned numbers of permanent magnets and winding coils are not unique, that is, an appropriate number of permanent magnets and winding coils can be provided according to different demands of actual output electric energy.

As shown in FIG. 2 , in order to facilitate manufacturing and installation, the outer rotor 12 further includes: an outer rotor body 121 connected to the driven axle 20 through the first outer rotor bearing 41 and located at the center of the inner stator. the outer side; and the outer rotor cover plate 122 connected to the driven axle 20 through the second outer rotor bearing 42 and located on the inner side of the inner stator. Optionally, the outer rotor body 121 and the outer rotor cover plate 122 are connected by snap-fit, so as to ensure the reliability and stability of the connection relationship between the outer rotor body 121 and the outer rotor cover plate 122 . Due to the functions of the first outer rotor bearing 41 and the second outer rotor bearing 42, the outer rotor 12 can be guaranteed to rotate smoothly, naturally, safely and reliably.

At the same time, the outer sides of the first outer rotor bearing 41 and the second outer rotor bearing 42 are respectively provided with oil seals 43 to prevent lubricating oil leakage and prevent dust from entering the inside of the bearings, so as to ensure that the outer rotor normal operation of the generator.

It is worth pointing out that the outer part of the outer rotor body 121 can be detachably connected to a hub 45 via a fastener, such as a wheel coupling screw 44 , and a tire 46 is sleeved on the hub. Since the inner stator 11 is provided with multiple sets of winding coils 31 and the outer rotor 12 is provided with a plurality of permanent magnets 32, when the outer rotor 12 rotates on the ground following the driven wheel tire 46, the inner stator 11 acts relative to the outer rotor 12. The electric energy is generated by cutting the magnetic induction line, and the electric energy is stored in the corresponding electric storage device to be used as auxiliary electric energy for automobile instrumentation, lighting, and other auxiliary electrical appliances.

Since the outer rotor 12 of the present utility model and the wheel hub 45 are connected in a detachable manner, when the tire 46 is worn out, only the wheel hub 45 and the worn tire 46 need to be replaced by dismounting the wheel coupling screw 44, and then replaced with a new one. The hub and the tire are sufficient, thus effectively overcoming the defect that the existing outer rotor generator has an integrated structure of the outer rotor and the hub. When the hub or the tire wears out, the entire generator will be scrapped. Therefore, the utility model The maintenance of the external rotor generator is simple and convenient, and saves economic costs.

In order to easily control the rotation of the outer rotor 12, the outer rotor generator also includes an electric disc brake 47, which is arranged on the driven axle 20 and located on the inner side of the driven wheel for braking when necessary. Move described outer rotor 12, make it stop rotating.

To sum up, according to the outer rotor generator of the present invention, it can be arranged on the two driven wheels of the car, so that it can effectively use the kinetic energy of the high-speed rotation of the driven wheels to generate electricity when the car is running, which is reasonable. It converts mechanical energy into electrical energy efficiently, and further provides auxiliary electrical energy to the auxiliary electrical appliances of the car, avoiding the waste of kinetic energy. The utility model is simple in structure, scientific and environment-friendly, and can be applied to various power vehicles, so it has wide practicability. On the other hand, due to the detachable connection between the outer rotor and the hub, when the tire wears out, the wheel connecting screw can be removed to replace the new hub and tire, so the outer rotor generator of the utility model is easy to disassemble and assemble, and the maintenance process It is simplified, and its service life is effectively extended, and the economy is better.

It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalents can be made to these features and embodiments without departing from the spirit and scope of the utility model replace. In addition, the features and embodiments may be modified to adapt a particular situation and material to the teachings of the invention without departing from the spirit and scope of the invention. Therefore, the utility model is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of this application belong to the protection scope of the utility model.

Claims (5)

1. an electrocar outer rotor generator is arranged on the driven pulley of described electrocar, it is characterized in that, described outer rotor generator includes:

Internal stator is fixedly connected on the driven axletree of described electrocar; And

External rotor is rotatably connected on the driven axletree of described electrocar, and is set in the outside of described internal stator;

Wherein, also be provided with many cover winding coils on the peripheral part of described internal stator, also be provided with a plurality ofly on the inner tube wall of described external rotor, when described external rotor rotates with respect to described internal stator, produce the cutting magnetic induction line motion between described winding coil and the permanent magnet with the uniform permanent magnet of predetermined space.

2. electrocar outer rotor generator as claimed in claim 1 is characterized in that, described external rotor also comprises:

The external rotor body is connected on the described driven axletree by first outer rotor bearing, and is positioned at the outside of described internal stator; And

The external rotor cover plate is connected on the described driven axletree by second outer rotor bearing, and is positioned at the inboard of described internal stator;

Wherein, be engagement connection between described external rotor body and the described external rotor cover plate.

3. electrocar outer rotor generator as claimed in claim 2 is characterized in that, the outside of described first outer rotor bearing and/or second outer rotor bearing also is provided with oil sealing.

4. electrocar outer rotor generator as claimed in claim 2 is characterized in that, the outside of external rotor body connects screw by wheel and removably is connected with wheel hub, is arranged with tire on the described wheel hub.

5. electrocar outer rotor generator as claimed in claim 1 is characterized in that, described outer rotor generator also includes in order to brake the electroplax formula brake of described external rotor, is arranged on the described driven axletree.

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