JPS63133500A - Electrostatic shock eliminator for automobile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention relates to the prevention of 1LI when an automobile passenger touches an exposed part such as a hand to a door handle or keyhole due to static electricity accumulated in the body when getting off or getting into a car. .

In recent years, synthetic fibers have come into widespread use, and many car seat materials and clothing are made of synthetic fibers, which makes them difficult to use during the dry winter season.

A large amount of static electricity is generated on the body and clothes.

Therefore, when getting on or off the train, use it on door handles or door keyholes.

I often get electric shocks when I am attacked.

The cause and prevention method of receiving electric shock due to static electricity will be explained with reference to one drawing.

FIG. 1 shows a car and a human body.

Figure 11. is the vehicle body, 2. is a door handle or keyhole, 3. 4. Body and clothing; 5. Tires; 4. Body and clothing; are exposed hands, etc.
6. Shoes with rubber soles, etc.

Now, if you put your exposed hand on a door handle with static electricity built up on your body and clothes, you will receive an electric shock. This is because static electricity accumulated on the body and clothes passes through the door handle through the hands and is charged to the capacitance of the car body.

In FIG. 2, [1] is the electrical equivalent circuit of the own Cj vehicle, and [2] is the electrical equivalent circuit of the human body. Since the electrical resistance value 7 between the door handle and the vehicle body is small, when the exposed hand etc. of 5 touches the door handle 2, the electric charge accumulated in 4 will be transferred from the exposed hand etc. to the door handle etc. of 7. Due to the small resistance, a large current instantly charges the capacitance of the car body, causing an electric shock.

If the voltage when 5 touches 2 is ■volts, then V/
A large current of RO flows instantaneously and you receive an electric shock. As a countermeasure to this problem, as shown in Fig. 2 [3], a large electric resistance RX of 8 (for example, 1
00~100OK ohm), the current will flow,
V/RX becomes smaller, the discharge time from exposed hands becomes longer, and the person is hardly exposed to electric shock.

[Brief explanation of the drawing]

FIG. 1 shows a car and a human body. FIG. 2 [1] is an electrical equivalent circuit diagram of an automobile. FIG. 2 [2] is an electrical equivalent circuit diagram of the human body. Figure 2 [3] shows the large electrical resistance R between the door handle and the vehicle body.
Electrical equivalent circuit of own dI car with X inserted.

Claims (1)

[Claims] An electrostatic shock prevention device characterized by inserting a large electrical resistance between a car door handle (electrical conductor) or door keyhole (electrical conductor) and the car body (metallic body).