Motor controller

Abstract

The invention discloses a motor controller. According to the technical solution, the motor controller comprises a shell, a power board is arranged in the shell, MOS (Metal Oxide Semiconductor) transistors and phase line connecting columns are installed on the power board, a capacitor board is arranged above the power board, capacitors are installed on the capacitor board, and conductive columns are arranged between the power board and the capacitor board. The capacitors can be directly installed on the separate capacitor board, so that the lengths of pins of the capacitors can be effectively reduced, overheating of the capacitors in operation due to too long pins can be effectively avoided, burnout of the pins of the capacitors can be effectively avoided, the service lives of the capacitors are prolonged and the stability of the motor controller is improved.

Description

technical field [0001] The present invention relates to the field of motor control, more specifically, it relates to a motor controller. Background technique [0002] The motor controller controls the motor to work according to the set direction, speed, angle and response time through the active work of the integrated circuit. The application range of the motor is wider, the output efficiency is higher, the noise is lower, and the like. [0003] In the prior art, the phase line connection post 5 on the circuit board 10 is fixed on the circuit board 10 by solder paste welding, but since the phase line connection post 5 is mostly made of copper material, the use of solder paste The way of welding realizes the fixation of the phase line connecting post 5. After the solder paste melts, the phase line connecting post 5 of copper material absorbs heat very quickly. Often the phase line connecting post 5 has not been welded firmly, and the solder paste has cooled down. After the ...

AI Technical Summary

Problems solved by technology

[0005] But adopt above-mentioned design, when soldering, because the pin of capacitive tube 61 needs to pass through circuit board 10, and there are many solder joints on circuit board 10, the solder spot of the pin of capacitive tube 61 is far away from capacitive tube 61, like this The pins of the capacitor tube 61 will be very long. In the circuit layout design, it is very taboo for the pins of electrical components to be too long, because when in use, the inductance at the pins will be very large, and the current on the pins will become larger. After time use, the pins will burn out, reducing the service life of the motor controller

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