CN2886978Y - 24V and 12V universal LED functional bulb for automobile - Google Patents
24V and 12V universal LED functional bulb for automobile Download PDFInfo
- Publication number
- CN2886978Y CN2886978Y CN 200520033080 CN200520033080U CN2886978Y CN 2886978 Y CN2886978 Y CN 2886978Y CN 200520033080 CN200520033080 CN 200520033080 CN 200520033080 U CN200520033080 U CN 200520033080U CN 2886978 Y CN2886978 Y CN 2886978Y
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- CN
- China
- Prior art keywords
- links
- resistance
- collector electrode
- triode
- led
- 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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- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Disclosed is a vehicle LED lamp which can use both 24V and 12V power source and the lamp consists of two LED arrays whose working voltage is 12V and an automatic voltage conversion circuit. According to that the used power source is 24V or 12V, the automatic voltage conversion circuit automatically switches the circuit to realized concatenation or parallel connection of the two LED arrays. And in this way, the utility model can use both 24V and 12V power source. Because the LED technology is adopted, the utility model is longer in service life and more energy-saving.
Description
Affiliated technical field
The utility model relates to a kind of bulb.The led function bulb that a kind of specifically automobile 24V, 12V are general.
Background technology
Traditional automobile function lamp is as direction indicator lamp, stop lamp, illuminating lamp etc., because the class of vehicles difference must be selected different bulbs for use.For example for gasoline car and diesel vehicle, because there is the difference of 24V and 12V voltage in the storage battery that they use, therefore employed function bulb also must be done corresponding the selection.
Summary of the invention
The purpose of this utility model is to provide a kind of and not only is fit to the use of 12V voltage but also be fit to the use of 24V voltage, the i.e. general LED automobile function bulb of 12V and 24V.
The technical scheme that its technical problem that solves the utility model adopts is: the LED that is 12V by two groups of operating voltages organizes, and a voltage automatic switching circuit constitutes led light source.When supply voltage was 12V, the voltage automatic switching circuit made two groups of LED groups be automatically changeb to parallel operation; When supply voltage was 24V, the voltage automatic switching circuit made two groups of LED groups be automatically changeb to tandem working, thereby has realized purpose of the present invention.
The beneficial effects of the utility model are: no matter automobile-used storage battery is 24V or 12V, all can be general, and greatly facilitate use; Simultaneously, owing to use LED to be light source, thus more energy-conservation, longer service life.
Description of drawings
Accompanying drawing 1 is the fundamental diagram of the utility model led light source, also is one embodiment of the present of invention.
Embodiment
In accompanying drawing (1), two groups of light-emitting diode D
1And D
2Operating voltage be 12V.W
1It is the voltage stabilizing didoe of a 16V.W
1Negative electrode link to each other W with positive source
1Anode is through resistance R
1With triode T
1Base stage link to each other T
1Grounded emitter, power supply is through resistance R
2With T
1Collector electrode links to each other; T
1Collector electrode is through resistance R
3Link to each other T with triode T2 base stage
2Grounded emitter, T
2Collector electrode is through resistance R
4Link to each other with positive source; T
1Collector electrode is through resistance R
7With NPN type triode T
4Base stage links to each other, T
4Emitter and light-emitting diode group D
2Negative pole links to each other, D
2Negative pole is ground connection simultaneously; T
4Collector electrode and light-emitting diode group D
1Negative pole links to each other, D
1Negative pole and triode T
5Collector electrode links to each other; T
2Collector electrode is through resistance R
5Link to each other T with PNP triode T3 base stage
3Collector electrode and D
2Anodal continuous, D
2Anodal while and T
5Emitter links to each other, T
3Emitter and D
1Anodal continuous, D
1Anodal linking to each other with positive source simultaneously; Voltage stabilizing didoe W
1Anode through resistance R
6With triode T
5Base stage links to each other.
When supply voltage is 12V, voltage stabilizing didoe W
1Obstructed, triode T
1End T
2Conducting, T
5End T
3, T
4Conducting; Diode group D
1, D
2Because T
3, T
4D has been finished in conducting
1, D
2Parallel connection, then D
1, D
2The while operate as normal; When supply voltage is 24V, W
1Conducting, triode T
1Conducting, T
2End, simultaneously T
3, T
4Also end, and T
5Conducting is because T
5Conducting T
3, T
4End, finished D
1, D
2Series connection, then D
1, D
2The while operate as normal.
Can find out from above operation principle, realize that the conversion of 24V and 12V realizes automatically by said voltage automatic switching circuit.
In production, above-mentioned voltage automatic switching circuit is packaged in the lamp holder of automobile function lamp, so just can directly replace existing automobile function lamp, no matter the body of a motor car use is 12V storage battery or 24V storage battery, greatly facilitate use.Owing to adopted the LED technology, made product more energy-conservation, longer service life.
Claims (2)
1, a kind of automobile 24V, 12V Universal LED function bulb are made up of lamp holder and led light source, the LED group D that said led light source is 12V by two groups of operating voltages
1, D
2And a voltage automatic switching circuit formation, the voltage automatic switching circuit is by NPN triode T
1, T
2, T
4, T
5With PNP triode T
3And resistance R
1, R
2, R
3, R
4, R
5, R
6, R
7Voltage stabilizing didoe W with 16V
1Form, it is characterized in that voltage stabilizing didoe W
1Negative electrode link to each other with positive source, the W1 anode is through resistance R
1With triode T
1Substrate link to each other T
1Grounded emitter, power supply is through resistance R
2With T
1Collector electrode links to each other, T
1Collector electrode is through resistance R
3With triode T
2Base stage links to each other, T
2Grounded emitter, T
2Collector electrode is through resistance R
4Link to each other T with positive source
1Collector electrode is through resistance R
7With NPN type triode T
4Base stage links to each other, T
4Emitter and light-emitting diode group D
2Negative pole links to each other, D
2Negative pole is ground connection simultaneously, T
4Collector electrode and light-emitting diode group D
1Negative pole links to each other, D
1Negative pole and triode T
5Collector electrode links to each other, T
2Collector electrode is through resistance R
5Link to each other T with PNP triode T3 base stage
3Collector electrode and D
2Anodal continuous, D
2Anodal while and T
5Emitter links to each other, T
3Emitter and D
1Anodal continuous, D
1The anodal while links to each other voltage stabilizing didoe W with positive source
1Anode through resistance R
6With triode T
5Base stage links to each other.
2, automobile 24V as claimed in claim 1,12V Universal LED function bulb is characterized in that said voltage automatic switching circuit is mounted in the lamp holder of this bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033080 CN2886978Y (en) | 2005-01-26 | 2005-01-26 | 24V and 12V universal LED functional bulb for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033080 CN2886978Y (en) | 2005-01-26 | 2005-01-26 | 24V and 12V universal LED functional bulb for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886978Y true CN2886978Y (en) | 2007-04-04 |
Family
ID=37962062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520033080 Expired - Fee Related CN2886978Y (en) | 2005-01-26 | 2005-01-26 | 24V and 12V universal LED functional bulb for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2886978Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101094547B (en) * | 2007-07-20 | 2011-03-02 | 深圳和而泰智能控制股份有限公司 | Display control circuit of LED and digitron |
| CN102065610A (en) * | 2010-11-11 | 2011-05-18 | 奥迪通用照明(广州)有限公司 | LED (Light Emitting Diode) lamp control circuit |
| CN102480818A (en) * | 2010-11-23 | 2012-05-30 | 闳帆有限公司 | Light-emitting diode drive circuit |
| CN106912138A (en) * | 2015-12-22 | 2017-06-30 | 天津工大海宇照明部品有限公司 | A kind of 12V/24V general LED rear combination lamp illuminators |
| CN108235499A (en) * | 2016-12-09 | 2018-06-29 | 天津工大海宇照明部品有限公司 | A kind of LED rear combination lamp illuminators general 12V/24V |
| WO2020030402A1 (en) | 2018-08-08 | 2020-02-13 | Burkhard Herbach | Lighting device capable of being operated at two voltages |
-
2005
- 2005-01-26 CN CN 200520033080 patent/CN2886978Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101094547B (en) * | 2007-07-20 | 2011-03-02 | 深圳和而泰智能控制股份有限公司 | Display control circuit of LED and digitron |
| CN102065610A (en) * | 2010-11-11 | 2011-05-18 | 奥迪通用照明(广州)有限公司 | LED (Light Emitting Diode) lamp control circuit |
| CN102065610B (en) * | 2010-11-11 | 2013-08-21 | 广州奥迪通用照明有限公司 | LED (Light Emitting Diode) lamp control circuit |
| CN102480818A (en) * | 2010-11-23 | 2012-05-30 | 闳帆有限公司 | Light-emitting diode drive circuit |
| CN106912138A (en) * | 2015-12-22 | 2017-06-30 | 天津工大海宇照明部品有限公司 | A kind of 12V/24V general LED rear combination lamp illuminators |
| CN108235499A (en) * | 2016-12-09 | 2018-06-29 | 天津工大海宇照明部品有限公司 | A kind of LED rear combination lamp illuminators general 12V/24V |
| WO2020030402A1 (en) | 2018-08-08 | 2020-02-13 | Burkhard Herbach | Lighting device capable of being operated at two voltages |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070404 Termination date: 20130126 |