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Special pure electric vehicle coaxial combination brushless DC motor with functions of power self-regulating and temperature control

A DC motor, pure electric vehicle technology, applied in electric vehicles, electric components, motors, etc., can solve the problem of high cost of variable frequency controllers, and achieve the effects of improving efficiency and service life, high efficiency and low manufacturing cost

Inactive Publication Date: 2014-05-07
河北弛神电机制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the above defects in the prior art, to provide a method that can increase the starting torque of the brushless DC motor, save energy, and solve the problem that the cost of the frequency conversion controller of the high-power brushless DC motor is too high, and the motor is long. Coaxial combined brushless DC motor with self-adjusting power and temperature control for pure electric vehicles, which can effectively control the temperature rise during time-running

Method used

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  • Special pure electric vehicle coaxial combination brushless DC motor with functions of power self-regulating and temperature control
  • Special pure electric vehicle coaxial combination brushless DC motor with functions of power self-regulating and temperature control
  • Special pure electric vehicle coaxial combination brushless DC motor with functions of power self-regulating and temperature control

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Embodiment 1

[0031] see figure 1 , in this embodiment, four stators of the same structure are evenly installed coaxially with the rotating shaft 2 in the machine base 1, and four rotors of the same structure are correspondingly installed on the rotating shaft 2, and each stator and each corresponding rotor form four columns Type motor. see figure 2, is a schematic diagram of the end surface structure of the stator (with frame) in the column motor of this embodiment, which includes a cylindrical stator bracket 3 installed in the frame 1, and a stator core 4 fixed in the stator bracket 3, the stator Support 3 can be made of materials such as aluminum alloy, fiberglass, steel plate. see image 3 , is a schematic diagram of the end face structure of the stator core 4. The stator core 4 is formed by laminating annular silicon steel sheets. image 3 It can be seen that the outer circumference of the stator core 4 is provided with several semicircular ventilation holes 41 , and the inner cir...

Embodiment 2

[0033] see Figure 8 , in this embodiment, four stators of the same structure are evenly installed coaxially with the rotating shaft 2 in the machine base 1, and four rotors of the same structure are correspondingly installed on the rotating shaft 2, and each stator and each corresponding rotor form four sets Disc motor. The structure and connection relationship of the base, the end cover, the bearing, the rotating shaft and the peripheral equipment of the base in this embodiment are the same as those in the first embodiment. The difference is that the stators and the corresponding rotors in this embodiment form four disc-type sub-motors, the stators include a disc-shaped stator support 21 installed in the machine base 1, and the stator support 21 can be aluminum alloy, glass steel, Made of steel plate and other materials. like Figure 8 , Figure 9 , Figure 10 As shown, one end surface of the stator bracket 21 is fixedly connected to one end surface of the stator core 2...

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Abstract

The invention discloses a special automatic vehicle coaxial combination brushes DC motor with functions of power self-regulating and temperature control. The motor has the following technical points: more than two stators with the same structure are mounted in a motor base, and more than two rotors with the same structure are correspondingly mounted on a rotary shaft; a wind cover is mounted outside the end cover of non-shaft stretch end, an air vent is formed in the middle of the wind cover, and is communicated with a blast pump; another air vent is formed at the end cover of the non-shaft stretch end, and a ventilation port is formed on the motor base; a temperature sensor is arranged in the motor base, and is connected to a temperature controller, and the temperature controller is connected with the blast pump and a power supply; the phase line of the stator winding of each stator and a control line are respectively connected to a corresponding sub-frequency conversion controller, each sub-frequency conversion controller is connected with a circuit controller, and the circuit controller is connected with the power supply. The motor disclosed by the invention can enlarge start torque, saves energy, lowers the cost of the frequency conversion controllers, and reduces the temperature rise of the motor.

Description

technical field [0001] The invention belongs to a special DC motor for pure electric vehicles, in particular to a coaxial combined brushless DC motor with self-adjusting power and temperature control for pure electric vehicles. Background technique [0002] At present, most of the motors used in pure electric vehicles are brushed DC motors, and there are also brushless DC motors. The advantages of brushed DC motors are large starting current and large starting torque, but the efficiency of brushed DC motors is low. The efficiency of the brushless DC motor is high, but due to the limitation of the starting current by the variable frequency controller of the brushless DC motor, the starting torque of the brushless DC motor is small, and it is difficult to meet the functional needs of the pure electric vehicle. Usually, a brushless DC motor has only one independent rotor, one independent stator, and an independent frequency conversion controller connected to the stator windings...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/00H02K5/20H02K9/04H02K11/00H02K1/20H02K1/32H02K11/25
CPCY02T10/641Y02T10/64
Inventor 罗寿元赵昆雷柏衡尔
Owner 河北弛神电机制造有限公司
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