Controller for electric vehicle with indention pressing bar

Abstract

The present invention discloses an electromobile control device. The invention aims to provide an electromobile controller which is good in sealing property, convenient in maintenance, simple in process, and improves the production efficiency. The electromobile controller with a sawtooth shaped muck bar comprises a housing with an integral hollow cavity structure, a circuit board and an end cover. An inner cavity of the housing is provided with the muck bar which supports a power tube on the circuit board. The side face of the muck bar is provided with a groove. The upper surface and the lower surface of the groove are respectively provided with sawtooth shaped threads. The muck bar is connected to the housing through a fastener with a thread structure. The controller has the advantages of good sealing and waterproof performance, simple installation, convenient maintenance, good heat elimination, and good anti-vibration ability, and is a substitute product for the prior electromobile controller.

Description

technical field [0001] The invention belongs to a device in the field of electric vehicles, and more specifically relates to an electric vehicle control device. Background technique [0002] At present, electric vehicles include electric bicycles, electric tricycles, electric motorcycles, etc. The 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, the electric vehicle controller will enter the water, which will cause the components of the circuit board to short-circuit and fail; if the heat dissipation effect is not good, the circuit board will work for a long time, the temperature rise exceeds the maximum value of the components, and the components are damaged, which will lead to control The device does not work properly or even malfunctions. [0003] The most common electric vehicle controllers on the market are the following: [0004] 1. The shell is divi...

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Problems solved by technology

[0004] 1. The shell is divided into two parts, the upper cover and the bottom shell. These two parts are connected by buckles. Since there is a gap at the buckle, water vapor can easily enter the cavity where the circuit board is located through this gap, making the circuit board Component short-circuit failure; even if a layer of waterproof material is applied to the buckle, due to the limitation of the waterproof performance of the waterproof material and the influence of the skill level of the operator when applying, the coating thickness is uneven, which affects the sealing effect; at the same time, due to the The thermal conductivity of the waterproof coating is not good, which reduces the effect of heat dissipation between the upper cover and the bottom case, so that the upper cover and the bottom case cannot form a circulating radiator

[0005] 2. The shell is an integral controller. The power tube is connected to the strip-shaped bead by screws. At the same time, holes are punched on the bead and the corresponding position on the side of the shell. The bead is connected to the shell with screws, because there is a The screw holes in the controller are directly connected between the inner cavity of the controller and the outside world, which will cause the defect of water seepage in the screw holes, resulting in damage to the controller of the electric vehicle; at the same time, it is necessary to drill holes connected to the power tube and holes connected to the casing in the bead. , there is also a need to drill holes on the side of the outer casing, which makes the process complicated and is not conducive to improving production efficiency (especially the high-power controller requires 12 power tubes, so the process of drilling holes and tightening screws is very cumbersome)

[0007] 1. The shell is composed of two parts, the upper cover and the bottom shell, and there is a gap at the joint, resulting in poor sealing and easy water ingress

[0008] 2. The heat dissipation effect is not good. The thermal conductivity of the waterproof coating at the junction of the upper cover and the bottom shell is poor, which affects the heat dissipation cycle of the upper cover and the bottom shell, thus greatly reducing the heat dissipation effect of the shell.

[0009] 3. Since the consistency of the power tube installation cannot be guaranteed, the power tube and the upper cover cannot be in close contact, and the heat of the power tube cannot be transmitted well, so that a good heat dissipation effect cannot be achieved

[0011] 5. There are screw holes through the shell and the bead, which will cause the defect of water seepage

[0012] 6. Drilling holes at the corresponding positions on the bead and the side of the shell requires high precision. The size of the holes and their positional relationship must match very well, otherwise they cannot be positioned accurately, resulting in incorrect installation

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