CN2363919Y - Direction light blinking controller for motor vehicle - Google Patents
Direction light blinking controller for motor vehicle Download PDFInfo
- Publication number
- CN2363919Y CN2363919Y CN 99205935 CN99205935U CN2363919Y CN 2363919 Y CN2363919 Y CN 2363919Y CN 99205935 CN99205935 CN 99205935 CN 99205935 U CN99205935 U CN 99205935U CN 2363919 Y CN2363919 Y CN 2363919Y
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- China
- Prior art keywords
- steering indicating
- indicating light
- square
- wave oscillator
- detecting unit
- 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 - Fee Related
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Abstract
The utility model relates to a direction light blinking controller for motor vehicles. A square wave oscillator, a main light damage detection unit and a load short circuit detection unit are respectively composed of voltage comparators; the main light damage detection unit and the load short circuit detection unit have control action on the generation of square wave. A field effect tube is used as a power output device. The direction light blinking controller overcomes the shortages of the existing flashers, and is capable of notifying faults of direction lights to drivers. The utility model has short circuit protection function. The performance can reach national technical requirements to the direction light blinking controller. The utility model has the advantages of low cost and long lifetime.
Description
The utility model relates to the electrical equipment on a kind of self-propelled vehicle, specifically, relates to the steering indicating light flash controller of self-propelled vehicle.
Present widely used steering lamp for motor vehicle flash controller has three types.One class is to constitute mechanical type or dynamo-electric the mixing, and its feature is to utilize the light on and off of the break-make control light of mechanical contact; The square-wave oscillator that one class is made up of transistor adds power device and constitutes.More than two class flash controllers all can not reach country to the engineering factor standard (mechanical industry ministerial standard JB2551-84) of flash controller, they or the warning function when not having the steering indicating light king light to damage, make the vehicular drive personnel owing to can not in time know the steering indicating light damage, and in enforcement, can not correctly provide the turn inside diameter signal, cause traffic accident easily; The autoprotection function of Der Blink und Abblendschalter when perhaps not having load short circuits; Perhaps owing to the big electric current of the frequent break-make of mechanical contact makes the Der Blink und Abblendschalter damage rate higher or the like.Also have a class flash controller to adopt the special IC manufacturing, though better function, price is expensive, and other electrical part or the circuit of vehicle had certain requirement, so use not extensive.
The purpose of this utility model is to provide a kind of cheap vehicle turn signal flash controller, and it is driver indicator lamp fault in time, and has short-circuit protection function.
The steering indicating light flash controller of the utility model self-propelled vehicle includes: a steering indicating light group, and it includes a front directional, a rear directional, an instrument panel lamp, these three lamps are connected in parallel; Also further include in this steering indicating light flash controller: a field effect transistor is serially connected between power supply and the described steering indicating light group; A square-wave oscillator, the mouth of square-wave oscillator extremely links to each other with the control of field effect transistor; A sample resistance is serially connected between described field effect transistor and the described steering indicating light group; A king light damages detecting unit, and an end is connected between power supply and the described sample resistance, and the other end links to each other with square-wave oscillator; A load short circuits detecting unit, an end are connected between power supply and the described sample resistance, and the other end links to each other with square-wave oscillator.
Steering indicating light flash controller of the present utility model, square-wave oscillator wherein, king light damages detecting unit and load short circuits detecting unit, can be respectively by the integrated operational amplifier that is connected into the voltage comparator form, perhaps integrated voltage comparator constitutes.
The utility model can reach national technical standard requirement (mechanical industry ministerial standard JB2551-84), highly versatile, owing to do not use mechanical contact, thereby have very long service life, and because circuit is simple and adopted the general-duty components and parts, manufacturing cost is also very cheap, has realized design goal of the present utility model fully.
With reference to accompanying drawing, can clearerly understand the utility model, wherein:
Fig. 1 is the steering lamp for motor vehicle flash controller of prior art;
Fig. 2 is a constructional drawing of the present utility model;
Fig. 3 is the circuit diagram of a preferred embodiment of the present utility model.
Fig. 4 is the circuit diagram of second preferred embodiment of the present utility model.
Below the utility model is described further, steering indicating light flash controller of the present utility model includes: a steering indicating light group, it includes a front directional, a rear directional, an instrument panel lamp, these three lamps are connected in parallel; A field effect transistor is serially connected between power supply and the described steering indicating light group, as power-ourput device, under the control of square wave, to steering indicating light group horsepower output; A square-wave oscillator is used for producing square wave, and this square wave is controlled the break-make of described field effect transistor; A sample resistance is serially connected between described field effect transistor and the described steering indicating light group; A king light damages detecting unit, one end is connected between power supply and the described sample resistance, from obtaining to detect voltage between power supply and the described sample resistance, the other end links to each other with square-wave oscillator, the oscillation frequency of controlling party wave oscillator when steering indicating light damage (opening circuit) occurring, makes the oscillation frequency significant change of square-wave oscillator, the variation of this frequency can be reflected by described instrument panel lamp, thereby the driver can in time find; A load short circuits detecting unit; one end is connected between power supply and the described sample resistance; from obtaining to detect voltage between power supply and the described sample resistance; the other end links to each other with square-wave oscillator; the controlling party wave oscillator when short circuit appears in steering indicating light, makes square-wave oscillator quit work; then field effect transistor is closed and instrument panel lamp is closed, thereby can play the circuit protection effect and chaufeur can in time be found.
Understand the utility model for clearer,, the utility model is further described as follows below in conjunction with accompanying drawing and preferred embodiment of the present utility model.
Fig. 3 is the circuit diagram of a preferred embodiment of the present utility model.This steering lamp for motor vehicle flash controller has adopted three integrated operational amplifiers.Op amp F1 and peripheral cell thereof have been formed square-wave oscillator, the break-make of the output direct drive power field effect pipe V1 of op amp F1, thus make the steering indicating light flash of light.Op amp F2 constitutes king light and damages detecting unit, under the state that steering indicating light is opened, if king light is normal, then op amp F2 exports high level, if there is a king light to damage, then the output of op amp F2 becomes low level, make capacitor C 1 discharge, thereby change the oscillation frequency of F1.Op amp F3 constitutes the load short circuits detecting unit; under the normal situation of steering indicating light group; op amp F3 is output as low level; do not influence the vibration of op amp F1; when load short circuits; the current surge that flows through resistance R 1 will be made; the pressure drop of resistance R 1 is increased severely; then the output of op amp F3 will become high level; and make the end of oppisite phase of op amp F1 become high level by diode; then the output of op amp F1 becomes low level, and field effect transistor V1 turn-offs, and this is the process of a moment; its short circuit current does not also surpass the permission working current of field effect transistor; promptly be turned off, field effect transistor is damaged, reached the purpose of protection.By regulating the comparative voltage of op amp F2 and op amp F3, can adjust detection sensitivity.
Fig. 4 is the circuit diagram of second preferred embodiment of the present utility model.The circuit diagram of this circuit diagram and first preferred embodiment of the present utility model is basic identical.Its difference only is the op amp among Fig. 3, replaces with integrated voltage comparator in Fig. 4.Voltage comparator D1 and peripheral cell thereof have been formed square-wave oscillator, the break-make of the output direct drive power field effect pipe V1 of voltage comparator D1, thus make the steering indicating light flash of light.Voltage comparator D2 constitutes king light and damages detecting unit, under the state that steering indicating light is opened, if king light is normal, then voltage comparator D2 exports high level, if there is a king light to damage, then the output of voltage comparator D2 becomes low level, make capacitor C 1 discharge, thereby change the oscillation frequency of D1.Voltage comparator D3 constitutes the load short circuits detecting unit; under the normal situation of steering indicating light group; voltage comparator D3 is output as low level; do not influence the vibration of voltage comparator D1; when load short circuits; the current surge that flows through resistance R 1 will be made; the pressure drop of resistance R 1 is increased severely; then the output of voltage comparator D3 will become high level; and make the end of oppisite phase of voltage comparator D1 become high level by diode; then the output of voltage comparator D1 becomes low level, and field effect transistor V1 turn-offs, and this is the process of a moment; its short circuit current does not also surpass the permission working current of field effect transistor; promptly be turned off, field effect transistor is damaged, reached the purpose of protection.By the comparative voltage of regulating voltage comparator D2 and voltage comparator D3, can adjust detection sensitivity.
More than the integrated operational amplifier of Cai Yonging can be the general-duty integrated operational amplifier, the integrated voltage comparator that is adopted can be the general-duty integrated voltage comparator, sample resistance R1 wherein (is about 2 amperes owing to will flow through big electric current for motor bike, for four-wheeled vehicle and Yan Genggao), so should adopt metallic resistor silk or power resistor, its resistance generally should be less than 0.2 ohm.Resistance, electric capacity and diode for other do not have specific (special) requirements.
Claims (6)
1, a kind of steering indicating light flash controller of self-propelled vehicle includes:
A steering indicating light group, it includes a front directional, a rear directional, an instrument panel lamp, these three lamps are connected in parallel;
It is characterized in that further including:
A field effect transistor is serially connected between power supply and the described steering indicating light group;
A square-wave oscillator, the mouth of square-wave oscillator extremely links to each other with the control of field effect transistor;
A sample resistance is serially connected between described field effect transistor and the described steering indicating light group;
A king light damages detecting unit, and an end is connected between power supply and the described sample resistance, and the other end links to each other with square-wave oscillator;
A load short circuits detecting unit, an end are connected between power supply and the described sample resistance, and the other end links to each other with square-wave oscillator.
2, the steering indicating light flash controller of self-propelled vehicle as claimed in claim 1 is characterized in that, described square-wave oscillator, king light damages detecting unit, with the load short circuits detecting unit, can be respectively by the integrated operational amplifier that is connected into the voltage comparator form, perhaps integrated voltage comparator constitutes.
3, the steering indicating light flash controller of self-propelled vehicle as claimed in claim 1 is characterized in that, described square-wave oscillator, and king light damages detecting unit and load short circuits detecting unit, is made of the integrated operational amplifier that is connected into the voltage comparator form respectively.
As the steering indicating light flash controller of the described self-propelled vehicle of claim 1,2 or 3, it is characterized in that 4, described sample resistance R1 is resistor wire or power resistor.
As the steering indicating light flash controller of the described self-propelled vehicle of claim 1,2 or 3, it is characterized in that 5, the resistance of described sample resistance R1 is less than 0.2 ohm.
6, the steering indicating light flash controller of self-propelled vehicle as claimed in claim 4 is characterized in that, the resistance of described sample resistance R1 is less than 0.2 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99205935 CN2363919Y (en) | 1999-03-26 | 1999-03-26 | Direction light blinking controller for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99205935 CN2363919Y (en) | 1999-03-26 | 1999-03-26 | Direction light blinking controller for motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2363919Y true CN2363919Y (en) | 2000-02-16 |
Family
ID=34000379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99205935 Expired - Fee Related CN2363919Y (en) | 1999-03-26 | 1999-03-26 | Direction light blinking controller for motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2363919Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862275B (en) * | 2005-04-13 | 2010-05-26 | 通用汽车环球科技运作公司 | LED turn signal and error detecting method |
-
1999
- 1999-03-26 CN CN 99205935 patent/CN2363919Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862275B (en) * | 2005-04-13 | 2010-05-26 | 通用汽车环球科技运作公司 | LED turn signal and error detecting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |