阅读说明：本技术 一种方向盘开关防水结构 (Waterproof structure of steering wheel switch ) 是由 高茹 马良 李溪 刘行 杜雨恒 方丽琴 陈倍彬 于 2019-09-19 设计创作，主要内容包括：一种方向盘开关防水结构,是在方向盘壳体上和电路板上开设多个相对应的通孔,方向盘壳体上的通孔和电路板上的通孔相连通,通孔与开关按键的缝隙连通形成水流通道,水流通道与电路板隔离；水流通道能实现有效导水。本发明从开关按键的缝隙到开关底部设计了流畅的水流通道,使外来水量不易堆积,对开关内部起到有效的防水保护。(A waterproof structure of a steering wheel switch is characterized in that a plurality of corresponding through holes are formed in a steering wheel shell and a circuit board, the through holes in the steering wheel shell are communicated with the through holes in the circuit board, the through holes are communicated with gaps of switch keys to form a water flow channel, and the water flow channel is isolated from the circuit board; the water flow channel can realize effective water guide. According to the invention, a smooth water flow channel is designed from the gap of the switch key to the bottom of the switch, so that external water is not easy to accumulate, and effective waterproof protection is realized on the inside of the switch.)

1. The utility model provides a steering wheel switch waterproof construction which characterized in that: a plurality of corresponding through holes (3) are formed in a steering wheel shell (1) and a circuit board (2), the through holes (3) in the steering wheel shell (1) are communicated with the through holes (3) in the circuit board (2), the through holes (2) are communicated with gaps of switch keys to form a water flow channel, and the water flow channel is isolated from the circuit board.

Technical Field

The invention relates to a waterproof structure of an automobile steering wheel switch, which can greatly reduce the influence of a water spraying environment on the switch and improve the reliability and the product quality of the switch when applied to the steering wheel switch.

Background

With the development of automobile technology, steering wheel switches are gradually developing to entertainment and interactivity as important automobile electrical components. The demand for steering wheel switches has also increased. The waterproof performance of the steering wheel switch is improved, the reliability and the quality are further improved, and the requirements on the aspect are higher and higher.

Disclosure of Invention

The invention aims to provide a waterproof structure of a steering wheel switch, which can effectively prevent the steering wheel switch from being waterproof.

The invention is that a plurality of corresponding through holes are arranged on a steering wheel shell and a circuit board, the through holes on the steering wheel shell are communicated with the through holes on the circuit board, the through holes are communicated with gaps of switch keys to form a water flow channel, and the water flow channel is isolated from the circuit board; the water flow channel can realize effective water guide.

The invention has the beneficial effects that:

according to the invention, a smooth water flow channel is designed from the gap of the switch key to the bottom of the switch, so that external water is not easy to accumulate, and effective waterproof protection is realized on the inside of the switch.

Drawings

FIG. 1 is a front view of the present invention.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

Detailed Description

As shown in figures 1 and 2, a plurality of corresponding through holes 3 are formed in a steering wheel shell 1 and a circuit board 2, the through holes 3 in the steering wheel shell 1 are communicated with the through holes 3 in the circuit board 2, the through holes 3 are communicated with gaps of switch keys to form a water flow channel, and the water flow channel is isolated from the circuit board; the water flow channel can realize effective water guide.

According to the invention, a smooth water flow channel is designed from the gap of the switch key to the bottom of the switch, so that external water is not easy to accumulate, and effective waterproof protection is realized on the inside of the switch.

In the specific example, as shown in fig. 2 and 3, three grid-shaped openings are formed in the middle of a steering wheel switch of an automobile, and a through hole 3 is formed in the lowest point of the switch under the condition of assembling the whole automobile. The structure can ensure that water flow can smoothly flow through the switch without influencing the electrical property of the switch.