CN201190933Y - Emergency steering switch - Google Patents

Abstract

The utility model relates to an emergency steering switch, belonging to the vehicle light control technical field, which comprises an emergency switch, a left-right steering switch, a left and a right cornering lamp and a flasher circuit, wherein the left-right steering switch is serially connected between a first and a second relay respectively and a power supply, the normal-closed contactors of the first and the second relays are serially connected with a third relay and are connected between the emergency switch and the power supply, the output of the flasher circuit is connected with the left and the right cornering lamps via the normal-open contactors of the first and the second relays respectively, the output of the flasher circuit is respectively connected with the left and the right cornering lamps via the normal-open contactors of the third relay. The emergency steering switch has flexible operation, simple use and long service life.

Description

emergency steering switch

technical field

The utility model relates to an emergency steering switch, which belongs to the field of automobile lighting control.

Background technique

When the car is driving in foggy weather or rainy days, the emergency lights, i.e. the four corner lights of the car, are often turned on. In addition, the emergency lights also need to be turned on while the convoy is driving. When the emergency light is turned on and the left and right turns are encountered while driving, it has completely failed. If you want to turn left and right, you must turn off the emergency circuit switch, and then turn on the left and right turn switches to display the left and right turn signals. The driver brings a lot of inconvenience in driving operation like this. In addition, it is more cumbersome to turn left and right when the emergency lights are overtaking while driving. Existing emergency steering switch is generally connected in series with a normally closed switch in the automotive emergency light switch connection control circuit, and this normally closed switch forms a linkage switch with the start switch of the left or right turn signal in the connection control circuit of the left or right turn signal switch. This can effectively avoid the occurrence of traffic accidents caused by the neglect of light indications, but due to the use of mechanical linkage switches, the lifespan is not long, the operation is not sensitive, and the stability is poor.

Utility model content

The purpose of the utility model is to provide an emergency steering switch with sensitive operation, convenient use and long service life.

The emergency steering switch described in the utility model comprises an emergency switch, a left and right steering switch, a left and right steering lamp and a flasher circuit, and its left and right steering switches are respectively connected in series with the first and second relays between the power supplies, the first, The normally closed contact of the second relay is connected in series with the third relay, and then connected in series with the emergency switch between the power supply, and the output terminals of the flasher circuit are respectively connected to the left and right steering through the normally open contacts of the first and second relays. lamp, the output end of the flasher circuit is also connected to the left and right turn signals respectively through the normally open contact of the third relay.

Wherein the flasher circuit is generally a pulse circuit, which is a common prior art.

Among them: the emergency light turn switch circuit includes emergency switch S1, left and right turn switch S2, relays KM1, KM2, KM3 and their contacts, left turn light L1, right turn light L2, battery B1, R terminals of left and right turn switch S2 and The L terminals are respectively connected to both ends of the battery B1 through the relays KM1 and KM2, and the emergency switch S1 is connected in series with the normally closed switch J1-2 of the relay KM1, the normally closed switch J2-2 of the relay KM2, and the relay KM3 in series with the two terminals of the battery B1. On the side, the normally open contact J1-1 of the relay KM1 is connected in parallel with the normally open contact J3-1 of the relay KM3, and then connected with the left turn signal L1 at the output end of the flasher circuit, and the normally open contact J2-1 of the relay KM2 1. Connect in parallel with the normally open contact J3-2 of the relay KM3 first, and then connect with the right turn signal lamp L2 at the output end of the flasher circuit.

The emergency steering switch of the utility model is provided with interrelated relays in the original steering lamp circuit, emergency lamp circuit and flasher circuit of the automobile, so that when it is necessary to turn left or right or overtake in bad weather or when other emergency lamps are on, The left and right turn signals can be turned on directly, which solves the cumbersome driving operation and is easy to use. Due to the use of relay association, the operation is sensitive, the response is fast, and the service life is long.

Description of drawings

Fig. 1, the schematic circuit diagram of an embodiment of the utility model.

In the figure: S1, emergency switch S2, left and right steering switch B1, battery L1, left steering lamp L2, right steering lamp KM1-KM3 relay J1-1, normally open contact of relay KM1 J1-2, normally closed contact of relay KM1 Point J2-1, normally open contact of relay KM2 J2-2, normally closed contact of relay KM2 J3-1, J3-2, normally open contact of relay KM3.

Detailed ways

Below in conjunction with embodiment accompanying drawing, the utility model is described further.

As shown in FIG. 1 , the R terminal and the L terminal of the left and right steering switches S2 are respectively connected to both ends of the battery B1 through relays KM1 and KM2 . The emergency switch S1 is sequentially connected in series with the normally closed switch J1-2 of the relay KM1, the normally closed switch J2-2 of the relay KM2, and the relay KM3 on both sides of the battery B1. The normally open contact J1-1 of the relay KM1 is first connected in parallel with the normally open contact J3-1 of the relay KM3, and then connected with the left turn signal lamp L1 at the output end of the flasher circuit. The normally open contact J2-1 of the relay KM2 is first connected in parallel with the normally open contact J3-2 of the relay KM3, and then connected with the right turn signal lamp L2 at the output end of the flasher circuit.

working principle:

In the normal state when there is no need to turn on the emergency light, when turning left, turn the left and right steering switch S2 to the L side, the relay KM1 is energized, the normally open contact J1-1 is closed, and the normally closed contact J1-2 is disconnected. The flasher circuit connects the left turn signal lamp L1 from A, and only the left turn signal lamp L1 is on at this moment. Turn right for the same reason.

When it is necessary to turn on the emergency lights, close the emergency switch S1, the normally closed of KM1, and the normally closed of KM2, the relay KM3 is energized, close the normally open contacts J3-1, J3-2, and the left and right turn signals L1, L2 are on at the same time.

When the emergency light is turned on, when it is necessary to turn left, turn the left and right steering switch S2 to the L side, the relay KM1 is energized, the normally open contact J1-1 is closed, the normally closed contact J1-2 is disconnected, and the flasher circuit Connect the left turn signal lamp L1 from A, and at the same time, the relay KM3 loses power, the normally open contacts J3-1, J3-2 are disconnected, and the right turn signal lamp L2 is turned off, at this time only the left turn signal lamp L1 is on. The same is true when the emergency lights are turned on and a right turn is required.

Claims (2)

1. An emergency steering switch, comprising an emergency switch, a left and right steering switch, a left and right steering lamp and a flasher circuit, characterized in that the left and right steering switches are respectively connected in series with the first and second relays between the power supplies, the first, The normally closed contact of the second relay is connected in series with the third relay, and then connected in series with the emergency switch between the power supply, and the output terminals of the flasher circuit are respectively connected to the left and right steering through the normally open contacts of the first and second relays. lamp, the output end of the flasher circuit is also connected to the left and right turn signals respectively through the normally open contact of the third relay. 2. The emergency steering switch according to claim 1, characterized in that the circuit of the emergency light steering switch includes emergency switch S1, left and right steering switches S2, relays KM1, KM2, KM3 and their contacts, left steering light L1, right steering Lamp L2, battery B1, R terminal and L terminal of left and right steering switch S2 are respectively connected to both ends of battery B1 through relays KM1 and KM2. The switch J2-2 and the relay KM3 are connected in series on both sides of the battery B1, the normally open contact J1-1 of the relay KM1 and the normally open contact J3-1 of the relay KM3 are first connected in parallel, and then connected with the left turn signal L1 on the flasher At the output end of the circuit, the normally open contact J2-1 of the relay KM2 and the normally open contact J3-2 of the relay KM3 are first connected in parallel, and then connected with the right turn signal lamp L2 at the output end of the flasher circuit.

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