Inclined glue sealing type motor controller

Abstract

The invention provides an inclined sealing glue type motor controller, which comprises a shell, a circuit board is assembled in an assembly cavity of the shell, a vertical working element is fixedly assembled on one side of the circuit board, the working element is fixedly assembled with a side plate on one side of the shell, the circuit board is suspended on the bottom surface of the shell, and the working element is fixedly assembled on the side plate on the other side of the shell. One side of the circuit board is in clearance assembly with the other surface, corresponding to the heat dissipation plate, of the shell, insulating colloid is injected into the shell in an inclined manner, so that the colloid submerges the circuit board and the working elements, an inclined glue sealing surface is formed after the colloid is cooled, and the circuit board and an electric wire connected with the elements on the circuit board extend out of the colloid and are placed on the other unsealed side of the shell. The inclined glue injection mode in the controller enables the interior of the controller not only to have an excellent waterproof effect, but also to have a good operation wire passing space, in addition, the difficulty of the whole machine assembly process is also greatly reduced, and the production efficiency of the controller is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of motor control, and in particular relates to a tilt-seal type motor controller. Background technique [0002] The motor controller is the brain and control center of the motor transmission system, which includes MCU, operational amplifier, DC-DC conversion, drive circuit, high-power tube, etc. These electronic components have high waterproof and dustproof requirements, so It is often installed in a closed housing. At present, the most common structure is to use aluminum profiles and add end covers on both sides. The disadvantages of this joint structure are: 1) The waterproof treatment of the end surface of the aluminum profile and the surface of the end cover, as well as the outlet wire and the outlet hole of the end cover is relatively difficult. , mass production is difficult to ensure 100% no water ingress, 2) Once water enters, it is difficult for the water in the cavity to flow out, which will acc...

AI Technical Summary

Problems solved by technology

At present, the most common structure is to use aluminum profiles and add end covers on both sides. The disadvantages of this joint structure are: 1) The waterproof treatment of the end surface of the aluminum profile and the surface of the end cover, as well as the outlet wire and the outlet hole of the end cover is relatively difficult. , mass production is difficult to ensure 100% no water ingress, 2) Once water enters, the water in the cavity is difficult to flow out, which will accelerate the failure of the controller

[0003] There is also the method of installing the PCB in the shell and pouring glue horizontally until the exposed conductive parts of all components are covered with glue. Although this method is simple and effective, the disadvantages are; 1) the amount of glue used is large and the cost is high, 2) Since the glue takes up a lot of space, the space for the lead-out wires becomes smaller, and the space utilization rate is poor

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