Controller for electric vehicle

Abstract

The invention discloses an electric vehicle control equipment to provide an electric vehicle controller with advantages of good performance, convenient in maintaining and low production cost. The electric vehicle controller comprises a cavity type shell, a circuit board disposed in the shell and an end cap disposed on the outer end of the shell, and an inner pad disposed between the shell and the end cap. An inner protuberant ring rib (21), which fits tightly inner surface of the shell, is formed on the end cap; an inner protuberant ring rib (31), which is embed into the inner surface of the rib (21), is formed on the end cap; and the rib (31) supports the rib (21). The controller in the invention achieves better sealing and waterproof performance, simple installation and convenient maintenance, is a replacing product to the existing electric vehicle controller.

Description

technical field [0001] The invention belongs to equipment in the field of electric vehicles, and more specifically relates to a control equipment for electric vehicles. Background technique [0002] At present, electric vehicles include electric bicycles, electric tricycles, electric motorcycles, etc. The electric vehicle controller, as the control center part of the electric vehicle, needs to have good waterproof, shockproof and heat dissipation performance. If the sealing is not good, water will enter the electric vehicle controller, causing the components on the circuit board to short-circuit and fail, resulting in damage to the controller; in the feedback of quality problems in the actual electric vehicle market, the proportion of damage to the electric vehicle controller due to waterproof problems Especially in rainy and humid southern regions, the waterproof problem of electric vehicle controllers is particularly prominent. Therefore, the current complete waterproofin...

AI Technical Summary

Problems solved by technology

[0004] 1. Complete glue filling means that the entire circuit board and circuit components are sealed in the shell in the form of full glue filling. This can achieve a completely waterproof effect, but it does not have the performance of rework, repair, and maintenance. At the same time, pouring The amount of glue used is very large, which is not conducive to saving production costs

[0005] 2. Glue is poured on the end cover, which cannot achieve complete waterproof effect. Due to the influence of operation skills, if the glue is not uniform and short glue appears, water will leak and the circuit board components will be damaged.

[0006] 3. The flat rubber pad is used on the end cover, which cannot be completely waterproof. In actual processing, due to the limitation of the process, the processing of the profile (that is, the shell) is not fine, and not only burrs will appear on the end face, but also It will also cause the end face to be uneven or uneven, which will cause the profile (that is, the shell) to be assembled with the flat rubber pad, and there will be a gap between the end face and the rubber pad, which is prone to water leakage; and when the end cover is fastened with screws, When several screws are stressed unevenly, the end cover will also warp, causing a gap between the end face of the profile and the rubber pad, resulting in water leakage

[0007] In short, these several sealing and waterproof structures of electric vehicle controllers in the prior art cannot achieve a satisfactory sealing and waterproof effect, which is a difficult technical problem in the technical field of electric vehicle controllers

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