Rotor, brushless motor using the rotor and dynamic balance correction method for the rotor
A technology of brushless motor and correction method, applied in electric components, magnetic circuit rotating parts, adjusting/balancing rotors, etc., can solve the problem that the quality of the counterweight material cannot be accurately controlled, the dynamic balance of the rotor is difficult to meet the requirements, and the counterweight The operation is not easy to operate and other problems, so as to improve the dynamic balance correction accuracy and correction efficiency, the specific gravity is large, and the curing speed is fast.
Active Publication Date: 2018-10-26
SZ DJI TECH CO LTD
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Problems solved by technology
However, the quality of the counterweight material in the traditional weight-increasing method cannot be accurately controlled, and the counterweight operation is not easy to operate, which makes it difficult for the dynamic balance of the rotor to meet the requirements and the efficiency of dynamic balance correction is low
Method used
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Embodiment Construction
[0032] see figure 1 , a brushless motor 100 according to an embodiment of the present invention includes a rotor 10 and an output shaft 30 connected to the rotor 10 , and the rotor 10 is a rotating part in the brushless motor 100 . Specifically, the rotor 10 cooperates with the stator (not shown) of the brushless motor 100 to generate rotational motion. The stator is fixedly arranged on a base (not shown).
[0033] The base includes a base body and a connecting portion formed on the base body. The connecting portion is approximately cylindrical, and is formed by protruding from approximately the middle of the base body. The connecting portion is provided with a connecting hole along its axial direction, and the connecting hole is used for connecting with the rotor. The stator is a coil winding, which is arranged on the base body and surrounds the outer periphery of the connecting portion.
[0034] The rotor 10 includes an outer cover 12 , a yoke 14 disposed on the outer co...
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The invention relates to a rotor, a brushless motor employing the rotor, and a dynamic balance correction method of the rotor. The brushless motor comprises a base, a stator arranged on the base, and the rotor rotationally connected with the base, wherein the rotor comprises a magnetic yoke, a plurality of magnets arranged on an inner wall of the magnetic yoke, and a counter weight material; and the counter weight material is located in an area beyond the magnets on the inner wall of the magnetic yoke, and is viscose glue bonded on the inner wall of the magnetic yoke. The dynamic balance correction method of the rotor comprises the steps of performing dynamic balance detection on the rotor with a dynamic balance detector and performing glue dispensing counter weight on the rotor with a full-automatic glue dispenser to allow dynamic balance of the rotor to meet a requirement.
Description
technical field [0001] The invention relates to a brushless motor rotor, a brushless motor using the rotor and a dynamic balance correction method for the brushless motor rotor. Background technique [0002] Due to the advantages of low loss, low noise, smooth operation and long life, brushless motors are widely used in the field of mechatronics applications. Generally, a brushless motor includes a base, a stator mounted on the base, a rotor rotated on the stator, and an output shaft connected to the rotor. The rotor includes an outer cover, a yoke connected to the outer cover, a magnet arranged on the inner wall of the yoke, and a rotating shaft connected to the outer cover. The stator is a coil winding, and the rotor is rotatably connected to the stator through the rotating shaft. superior. However, in the manufacturing process of the yoke, due to the characteristics of the manufacturing method and raw materials, the mass distribution of the yoke itself is uneven, and it...
Claims
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IPC IPC(8): H02K1/27H02K15/16
CPCH02K1/2773H02K7/04H02K15/165
Inventor 罗增王鹏陶冶
Owner SZ DJI TECH CO LTD