Motor magnet steel, motor, and throttle valve body
A magnetic steel and body technology, which is applied in the direction of machines/engines, mechanical equipment, engine control, etc., can solve problems such as fragmentation, the valve plate of the electronic throttle body cannot be opened and closed normally, and the normal driving function of the car is affected.
Inactive Publication Date: 2017-07-07
UNITED AUTOMOTIVE ELECTRONICS SYST
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- Application Information
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Problems solved by technology
However, it may be broken due to hidden cracks or other impacts, and the magnetic steel fragments will be stuck between the motor housing and the armature, causing the motor to be stuck
However, such hidden cracks may not be detected when the product is off-line, and it will take a period of time or a vibration level to trigger it to appear.
If the motor card lags behind, the valve plate of the electronic throttle body will not open and close normally, which will affect the normal driving function of the car
Method used
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[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that the drawings are all in a very simplified form and use imprecise ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.
[0023] The invention provides a motor, such as figure 1 As shown, it includes a motor magnet 15 and a rotor 18 , the rotor 18 is surrounded by the motor magnet 15 , and the rotor 18 rotates in the motor through its internal current and the action of the motor magnet 15 . In a preferred solution, the rotor 18 is a coil assembly. The coil assembly is composed of multiple groups of coils, and the coils can rotate under the action of the motor magnet 15 when electrified.
[0024] Please continue to refer figure ...
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Abstract
The invention provides motor magnet steel which comprises a magnet steel body and a protective layer around the magnet steel body. The protective layer can prevent the motor magnet steel from producing fragments due to partial fragmentation during operation and getting stuck between a magnet and a mover. The invention further provides a motor comprising the motor magnet steel and a throttle valve body. Because of the motor magnet steel, an electronic throttle valve plate will not get stuck due to fragmentation of the magnet steel. The reject ratio of finished products and the PPM value are reduced. The service life of parts is prolonged. The safety coefficient of products is increased. Good economic benefit is achieved.
Description
technical field [0001] The invention relates to the field of automobile drive, in particular to a motor magnet, a motor and a throttle body. Background technique [0002] The throttle body is the core executive component of the engine, which is used to control the intake air volume of the engine. The throttle body includes a motor, and is composed of a valve plate for controlling intake air, a valve shaft, a housing for assembling the motor, and a cover plate for sealing the gear cavity. [0003] During the use of the throttle body, the magnetic steel inside the motor is used to provide permanent magnetic force to make the coil with current flow rotate. However, it is possible that due to hidden cracks or other shocks, fragments of the magnetic steel will be stuck between the motor housing and the armature, causing the motor to seize. However, such hidden cracks may not be detected when the product is off-line, and it will take a period of time or a vibration level to trig...
Claims
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IPC IPC(8): H02K1/12F02D9/10F02D11/10
CPCF02D9/10F02D11/10H02K1/12
Inventor 于明涛蒋晔海思穹
Owner UNITED AUTOMOTIVE ELECTRONICS SYST