CN201347018Y - Automobile electric switch control circuit - Google Patents
Automobile electric switch control circuit Download PDFInfo
- Publication number
- CN201347018Y CN201347018Y CNU2008202382782U CN200820238278U CN201347018Y CN 201347018 Y CN201347018 Y CN 201347018Y CN U2008202382782 U CNU2008202382782 U CN U2008202382782U CN 200820238278 U CN200820238278 U CN 200820238278U CN 201347018 Y CN201347018 Y CN 201347018Y
- Authority
- CN
- China
- Prior art keywords
- switch
- control circuit
- aerotron
- relay
- indicator lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
An automobile electric switch control circuit is characterized in that a microswitch SW is connected between a trigger input end CP1 of a D trigger and a power supply in series, the Q1 end output signal of the D trigger is connected in a relay coil after being amplified by a Darlington device, and the contact of a relay is used as an execution component for connecting or cutting off a working indicator lamp power supply and a backlight indicator lamp. The control circuit can drive the backlight and working indicator lamps by using the switch on one hand, and can directly drive an external load and realize the automatic reset function of the switch after power-off on the other hand.
Description
Technical field
The utility model relates to ON-OFF control circuit, a kind of ON-OFF control circuit that is applied on the car electrics of more specifically saying so.
Background technology
In car electrics, routine is used for the switch of control apparatus load, mainly is divided into two kinds on principle, and a kind of is that switch self is with locking mechanism, and lighting and extinguishing by of its backlight and relay indicating light itself switched.Another kind is that switch inside has a micro-switch, and the switch output signal type is an energizing signal, and its backlight and relay indicating light is driven by BCM.The former is widely used, and its shortcoming is after power supply restarts, and switch is still closed, and consumer is a mode of operation, can not satisfy requirement energy-conservation and rules (as fog tail lamp control) aspect; Second kind of switch cost is lower, but needs external module to come the backlight and relay indicating light and the external loading of driving switch, so has taken the PIN pin resource of BCM.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of car electrics ON-OFF control circuit is provided, on the one hand can drive backlight and relay indicating light with switch self, on the other hand can the direct drive external loading and the outage auto-reset function of switch.
The utility model technical solution problem adopts following technical scheme:
The constructional feature of the utility model car electrics ON-OFF control circuit is between the triggering input end CP1 and power supply of d type flip flop, series connection is provided with micro-switch SW, the Q1 of described d type flip flop end output signal is amplifying back cut-in relay coil through Darlington transistor, with relay contact as connection or cut-off the performer of relay indicating light power supply and indicator lamp backlight.
Constructional feature of the present utility model also is: described relay indicating light be connected in series in by described relay contact connect or the electric power loop that cut-offs in; Described indicator lamp backlight is arranged in the switch loop that is made of aerotron.
The aerotron in described formation switch loop adopts the PNP aerotron, and indicator lamp backlight is arranged on the emitter of PNP aerotron, and the grounded collector of PNP aerotron is accepted switch controlling signal from relay contact with the base stage of described PNP aerotron.
Compared with the prior art, the utility model on the one hand can drive backlight and relay indicating light with switch self, on the other hand can the direct drive external loading and the outage auto-reset function of switch, and its circuit structure is simple, does not take the PIN pin resource of BCM.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model relay indicating light and indicating lamp structure scheme drawing backlight.
Below pass through the specific embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
The specific embodiment
Referring to Fig. 1, Fig. 2, present embodiment is between the triggering input end CP1 and power supply of d type flip flop, series connection is provided with micro-switch SW, the Q1 of d type flip flop end output signal is amplifying back cut-in relay coil through Darlington transistor, with relay contact as connection or cut-off the performer of relay indicating light power supply and indicator lamp backlight.
In concrete the enforcement, relay indicating light be connected in series in by relay contact connect or the electric power loop that cut-offs in; Indicator lamp backlight is arranged in the switch loop that is made of aerotron; The aerotron that constitutes the switch loop adopts the PNP aerotron, and indicator lamp backlight is arranged on the emitter of PNP aerotron, and the grounded collector of PNP aerotron is accepted switch controlling signal from relay contact with the base stage of PNP aerotron.
Adjusting incoming signal V1 backlight connects the transmitting terminal of PNP aerotron by indicator lamp backlight, can regulate the brightness of indicator lamp L2 backlight, and PNP aerotron may command L2 lights and extinguishes.
Working process:
After switch SW powered on, the Q1 of d type flip flop exported high level, exported to relay 85 pin through Darlington transistor, and relay is not worked.87 pin of relay are output as low level signal, and this pin inserts the indicator lamp control unit, controls the aerotron conducting of indicator lamp backlight, and backlight is lighted, and relay indicating light does not work.
After pressing micro-switch, the mouth Q1 state turnover of d type flip flop drives relay work by amplifying circuit, lights relay indicating light L1 simultaneously, and extinguishes indicator lamp L2 backlight; Whenever by a micro-switch, the state turnover of binary pair once, the adhesive of control relay with close.
When switch re-powered, the d type flip flop state automatically reset, and relay is not worked, up to pressing micro-switch SW once more.
Claims (3)
1, car electrics ON-OFF control circuit, it is characterized in that between the triggering input end CP1 and power supply of d type flip flop, series connection is provided with micro-switch SW, the Q1 of described d type flip flop end output signal is amplifying back cut-in relay coil through Darlington transistor, with relay contact as connection or cut-off the performer of relay indicating light power supply and indicator lamp backlight.
2, car electrics ON-OFF control circuit according to claim 1, it is characterized in that described relay indicating light be connected in series in by described relay contact connect or the electric power loop that cut-offs in; Described indicator lamp backlight is arranged in the switch loop that is made of aerotron.
3, car electrics ON-OFF control circuit according to claim 2, the aerotron that it is characterized in that described formation switch loop adopts the PNP aerotron, indicator lamp backlight is arranged on the emitter of PNP aerotron, the grounded collector of PNP aerotron is accepted switch controlling signal from relay contact with the base stage of described PNP aerotron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202382782U CN201347018Y (en) | 2008-12-19 | 2008-12-19 | Automobile electric switch control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202382782U CN201347018Y (en) | 2008-12-19 | 2008-12-19 | Automobile electric switch control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201347018Y true CN201347018Y (en) | 2009-11-18 |
Family
ID=41366496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202382782U Expired - Lifetime CN201347018Y (en) | 2008-12-19 | 2008-12-19 | Automobile electric switch control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201347018Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260665A (en) * | 2014-09-12 | 2015-01-07 | 成都威邦科技有限公司 | Sound-control automobile lamp power-off protector |
| CN109460008A (en) * | 2018-11-28 | 2019-03-12 | 江苏鸿鹄电子科技有限公司 | A kind of vehicle-mounted T-Box and BCM integrated equipment |
-
2008
- 2008-12-19 CN CNU2008202382782U patent/CN201347018Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260665A (en) * | 2014-09-12 | 2015-01-07 | 成都威邦科技有限公司 | Sound-control automobile lamp power-off protector |
| CN109460008A (en) * | 2018-11-28 | 2019-03-12 | 江苏鸿鹄电子科技有限公司 | A kind of vehicle-mounted T-Box and BCM integrated equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091118 |
|
| CX01 | Expiry of patent term |