CN201881968U - Warning control circuit of automobile turn lights - Google Patents
Warning control circuit of automobile turn lights Download PDFInfo
- Publication number
- CN201881968U CN201881968U CN2010206092324U CN201020609232U CN201881968U CN 201881968 U CN201881968 U CN 201881968U CN 2010206092324 U CN2010206092324 U CN 2010206092324U CN 201020609232 U CN201020609232 U CN 201020609232U CN 201881968 U CN201881968 U CN 201881968U
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- China
- Prior art keywords
- relay
- control circuit
- gate
- turn light
- isolation diode
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- Expired - Fee Related
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Abstract
The utility model discloses a warning control circuit of automobile turn lights, which comprises a not gate and a relay. An input end of the not gate is connected with a CPU turn light control signal output end of an automobile, coils of the relay are connected between a power source and an output end of the not gate, one end of a normally open contact of the relay is connected with the power source, the other end of the normally open contact of the relay is respectively connected with an anode of a first isolation diode and an anode of a second isolation diode, a right turn light is connected between an earth wire and a cathode of the first isolation diode, and a left turn light is connected between the earth wire and a cathode of the second isolation diode. Compared with the prior art, the warning control circuit of the automobile turn lights prevents a directional indicator control circuit of the turn lights from being interfered by the warning control circuit by the aid of the isolation diodes which are in series connection with return circuits of the left turn light and the right turn light respectively, so that the left turn light and the right turn light can not be turned on at the same time when an automobile turns. In this way, the left turn light and the right turn light can be controlled by the same relay, so that operating current and energy consumption of the warning control circuit of the automobile turn lights are reduced.
Description
Technical field
The utility model relates to flasher, specifically is the caution control circuit of flasher.
Background technology
The caution control circuit of existing flasher, as shown in Figure 1, comprise not gate U1, relay K 1 and relay K 2, the input end of not gate U1 connects automobile CPU steering indicating light alarm signal mouth, the coils from parallel connection of coils of the coil of relay K 1 and relay K 2 is between the mouth of power supply NAND gate U1, the open contact of right steering lamp DS1 and relay K 1 is in series between power supply and ground wire, and the open contact of left steering lamp DS2 and relay K 2 is in series between power supply and ground wire.During work, when CPU output high level steering indicating light alarm signal, this alarm signal input not gate U1, after not gate U1 was reverse, not gate U1 output low level was to the 2nd pin of relay K 1 and the 2nd pin of relay K 2, because the 1st pin of relay K 1, K2 is often to supply 12V voltage, the coil of relay K 1, K2 gets electric adhesive, the open contact conducting of relay K 1, K2, left and right steering indicating light DS2, DS1 are simultaneously bright, play warning function.
The caution control circuit of this flasher, in order to prevent that the direction indication control circuit of steering indicating light is subjected to warning the interference of control circuit, steering indicating light is simultaneously bright about when avoiding automobile to turn to, adopted two relays to control left and right steering indicating light respectively, cause the working current of caution control circuit of flasher bigger, energy consumption is also bigger.
The utility model content
The purpose of this utility model provides a kind of caution control circuit that reduces working current, reduces the flasher of energy consumption.
The technical solution of the utility model is such: the caution control circuit of flasher, comprise not gate and relay, the input end of above-mentioned not gate connects automobile CPU steering indicating light control signal output ends, the coil of above-mentioned relay is connected between the mouth of power supply and above-mentioned not gate, one end of the open contact of above-mentioned relay connects power supply, the other end connects the anode of first isolation diode and second isolation diode respectively, the right steering lamp is connected between the negative electrode of ground wire and above-mentioned first isolation diode, and the left steering lamp is connected between the negative electrode of ground wire and above-mentioned second isolation diode.
After adopting such scheme, the caution control circuit of flasher of the present utility model, compared with prior art, prevent that by the isolation diode that is serially connected with left and right steering indicating light loop respectively the direction indication control circuit of steering indicating light is subjected to warning the interference of control circuit, steering indicating light is simultaneously bright about when avoiding automobile to turn to, like this, left and right steering indicating light is controlled by same relay and is got final product, thereby realizes the working current of the caution control circuit of reduction flasher, the purpose that cuts down the consumption of energy.
Description of drawings
Fig. 1 is the caution control circuit schematic diagram of existing flasher;
Fig. 2 is schematic circuit diagram of the present utility model.
The specific embodiment
The caution control circuit of flasher of the present utility model, as shown in Figure 2, comprise not gate U1 and relay K 1, the input end of not gate U1 connects automobile CPU steering indicating light control signal output ends, the coil of relay K 1 is connected between the mouth of 12V power supply NAND gate U1, the anode that the one end connection 12V power supply of the open contact of relay K 1, the other end connect isolation diode D1 and isolation diode D2 respectively, right steering lamp DS1 is connected between the negative electrode of ground wire and isolation diode D1, and left steering lamp DS2 is connected between the negative electrode of ground wire and isolation diode D2.
During work, when CPU output high level steering indicating light alarm signal, this alarm signal input not gate U1, after not gate U1 was reverse, not gate U1 output low level was to the 2nd pin of relay K 1, because the 1st pin of relay K 1 is often to supply 12V voltage, the coil of relay K 1 gets electric adhesive, and the open contact conducting of relay K 1 is supplied with left and right steering indicating light DS2, DS1 through isolation diode D2, D1 respectively with the VCC+12V power supply, left and right steering indicating light DS2, DS1 are simultaneously bright, play warning function.
The warning control circuit of flasher of the present utility model, compared with prior art, isolating diode D2 by being serially connected with respectively left and right steering indicating light DS2, DS1 loop, the direction control circuit that D1 prevents steering indicating light are subjected to the interference of warning control circuit, steering indicating light DS2, DS1 are simultaneously bright about when avoiding automobile to turn to, like this, left and right steering indicating light DS2, DS1 control by same relay and get final product, thereby realize the operating current of the warning control circuit of reduction flasher, the purpose that cuts down the consumption of energy.
Claims (1)
1. the caution control circuit of flasher, it is characterized in that: comprise not gate and relay, the input end of above-mentioned not gate connects automobile CPU steering indicating light control signal output ends, the coil of above-mentioned relay is connected between the mouth of power supply and above-mentioned not gate, the anode that the one end connection power supply of the open contact of above-mentioned relay, the other end connect first isolation diode and second isolation diode respectively, the right steering lamp is connected between the negative electrode of ground wire and above-mentioned first isolation diode, and the left steering lamp is connected between the negative electrode of ground wire and above-mentioned second isolation diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206092324U CN201881968U (en) | 2010-11-10 | 2010-11-10 | Warning control circuit of automobile turn lights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206092324U CN201881968U (en) | 2010-11-10 | 2010-11-10 | Warning control circuit of automobile turn lights |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201881968U true CN201881968U (en) | 2011-06-29 |
Family
ID=44179505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206092324U Expired - Fee Related CN201881968U (en) | 2010-11-10 | 2010-11-10 | Warning control circuit of automobile turn lights |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201881968U (en) |
-
2010
- 2010-11-10 CN CN2010206092324U patent/CN201881968U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20151110 |
|
| EXPY | Termination of patent right or utility model |