CN204272438U - Trainman's room illumination lamp of colour temperature and the electrodeless adjustment of brightness - Google Patents
Trainman's room illumination lamp of colour temperature and the electrodeless adjustment of brightness Download PDFInfo
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- CN204272438U CN204272438U CN201420647081.XU CN201420647081U CN204272438U CN 204272438 U CN204272438 U CN 204272438U CN 201420647081 U CN201420647081 U CN 201420647081U CN 204272438 U CN204272438 U CN 204272438U
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Abstract
The utility model discloses trainman's room illumination lamp of a kind of colour temperature and the electrodeless adjustment of brightness, it comprises LED light source, at least two paths of LED drive circuit, colour temperature adjustment self-resetting switch, brightness regulation self-resetting switch, central controller and the power supply of at least two kinds of colors, and colour temperature regulates the control output end of self-resetting switch to be connected with central controller; The control end of brightness regulation self-resetting switch is connected with central controller; The control input end of power supply is connected with central controller; The signal input part of LED drive circuit is connected with the signal output part of central controller, the power input of LED drive circuit and power supply are electrically connected, each LED drive circuit is coupled to the LED light source of corresponding a kind of color, and is provided with control switch in each LED drive circuit.It can make the driver and conductor's environmentally brightness of the autonomous electrodeless adjustment lamp of condition and colour temperature, is applicable to brightness and light color temperature gamut regulates, and facilitates driver and conductor to be adjusted to best effort environment, guarantees that driving is comfortable and safe.
Description
Technical field
The utility model relates to trainman's room illumination lamp of a kind of colour temperature and the electrodeless adjustment of brightness, belongs to locomotive illuminating lamp technical field, uses for locomotive cab illumination.
Background technology
At present, according to existing locomotive matching requirements, trainman's room illumination lamp needs light modulation, what existing locomotive cab adopted is 2 fluorescent tubes+1 night flight or navigation fluorescent tube, and being that 3 fluorescent tubes are entirely bright during full light, is that night flight or navigation fluorescent tube is bright during the low light level, light wiring is three inlet wires, life-span is short, needs the ballast of supporting correspondence normally to work, often can not start.The dimming mode having other LED drivers' cab illuminating lamp to adopt is the whole LED of entire bright, the bright half LED of the low light level, this mode also can only adjust the brightness of single colour temperature, because locomotive work voltage range is-30% of rated voltage, + 25%, light fixture easily causes power output to change greatly at large-scale operating at voltages, affects the life-span.
Summary of the invention
Technical problem to be solved in the utility model is the defect overcoming prior art, trainman's room illumination lamp of a kind of colour temperature and the electrodeless adjustment of brightness is provided, it can make the driver and conductor's environmentally brightness of the autonomous electrodeless adjustment lamp of condition and colour temperature, be applicable to brightness and the adjustment of light color temperature gamut, facilitate driver and conductor to be adjusted to best effort environment, guarantee that driving is comfortable and safe.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: trainman's room illumination lamp of a kind of colour temperature and the electrodeless adjustment of brightness, and it comprises:
The LED light source of at least two kinds of colors;
Colour temperature regulates self-resetting switch;
Brightness regulation self-resetting switch;
Central controller, colour temperature regulates the control output end of self-resetting switch to be connected with central controller so that central controller receives colour temperature and regulates the control command of self-resetting switch thus produce at least two-way PWM pulsewidth temperature adjustment signal, and the pulsewidth sum of all PWM pulsewidth temperature adjustment signals is 1; The control end of brightness regulation self-resetting switch is connected so that central controller receives the control command of brightness regulation self-resetting switch thus produces power control command with central controller;
Power supply, its control input end is connected with central controller so that it is for receiving power control command and controlling its output current;
At least two paths of LED drive circuit, the signal input part of LED drive circuit is connected with the signal output part of central controller, the power input of LED drive circuit and power supply are electrically connected, each LED drive circuit is coupled to the LED light source of corresponding a kind of color, and be provided with control switch in each LED drive circuit, LED drive circuit controls the drive current of the LED light source of corresponding color for the output current receiving corresponding PWM pulsewidth temperature adjustment signal and power supply.
Further provide a kind of concrete structure of light source directly to adopt locomotive DC power supply, described power supply comprises the locomotive DC power supply, electromagnetic interface filter, rectifier bridge and the constant-current supply that are connected successively, the output of constant-current supply is connected with at least two paths of LED drive circuit, and the control input end of constant-current supply is connected with central controller.
Further, described central controller is also connected with thermal-shutdown circuit.
After have employed technique scheme, when pressing central controller when colour temperature regulates self-resetting switch, the equal high frequency of frequency is produced to the control switch in LED drive circuit, the PWM pulsewidth (0% ~ 100%) that pulsewidth is contrary, namely pulsewidth equals 1 with adding up; The light intensity now load having the LED light source of a road color is strengthened until pulsewidth 100%, and the LED light source light intensity decreasing of another road color is until pulsewidth is 0; When again pressing, the load variations above when colour temperature regulates self-resetting switch is just in time contrary, and a period of time (such as 5s) preserves current pulsewidth afterwards automatically; When pressing brightness regulation self-resetting switch, central controller controls power supply increases output current to control overall brightness (no matter which type of state load is in), the control pulsewidth of LED drive circuit, always to exist with the form for 1, stops increasing electric current and exports in time reaching the brightest; When again pressing brightness regulation self-resetting switch, central controller controls power supply reduces output current, a period of time (such as 5s) preserves current luminance state afterwards automatically, this makes it possible to make the driver and conductor's environmentally brightness of the autonomous electrodeless adjustment lamp of condition and colour temperature, be applicable to brightness and the adjustment of light color temperature gamut, facilitate driver and conductor to be adjusted to best effort environment, guarantee that driving is comfortable and safe; In addition, the utility model is by locomotive DC power supply, and by reducing electromagnetic interference in electromagnetic interface filter to circuit, the effect of rectifier bridge is that convenient installation, the power supply through rectifier bridge is powered to constant-current supply for not distinguishing positive and negative the dividing of input voltage.
Accompanying drawing explanation
Fig. 1 is the theory diagram of trainman's room illumination lamp of colour temperature of the present utility model and the electrodeless adjustment of brightness.
Embodiment
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail.
As shown in Figure 1, trainman's room illumination lamp of a kind of colour temperature and the electrodeless adjustment of brightness, it comprises:
The LED light source of at least two kinds of colors;
Colour temperature regulates self-resetting switch;
Brightness regulation self-resetting switch;
Central controller, colour temperature regulates the control output end of self-resetting switch to be connected with central controller so that central controller receives colour temperature and regulates the control command of self-resetting switch thus produce at least two-way PWM pulsewidth temperature adjustment signal, and the pulsewidth sum of all PWM pulsewidth temperature adjustment signals is 1; The control end of brightness regulation self-resetting switch is connected so that central controller receives the control command of brightness regulation self-resetting switch thus produces power control command with central controller;
Power supply, its control input end is connected with central controller so that it is for receiving power control command and controlling its output current;
At least two paths of LED drive circuit, the signal input part of LED drive circuit is connected with the signal output part of central controller, the power input of LED drive circuit and power supply are electrically connected, each LED drive circuit is coupled to the LED light source of corresponding a kind of color, and be provided with control switch in each LED drive circuit, LED drive circuit controls the drive current of the LED light source of corresponding color for the output current receiving corresponding PWM pulsewidth temperature adjustment signal and power supply.
Described power supply comprises the locomotive DC power supply, electromagnetic interface filter, rectifier bridge and the constant-current supply that are connected successively, and the output of constant-current supply is connected with at least two paths of LED drive circuit, and the control input end of constant-current supply is connected with central controller.
Described central controller is also connected with thermal-shutdown circuit.
As shown in Figure 1, the LED light source of the present embodiment and LED drive circuit are all respectively two-way, but are not limited thereto.
Operation principle of the present utility model is as follows:
Produce the equal high frequency of frequency to the control switch in LED drive circuit, the PWM pulsewidth (0% ~ 100%) that pulsewidth is contrary when pressing central controller when colour temperature regulates self-resetting switch, namely pulsewidth equals 1 with adding up; The light intensity now load having the LED light source of a road color is strengthened until pulsewidth 100%, and the LED light source light intensity decreasing of another road color is until pulsewidth is 0; When again pressing, the load variations above when colour temperature regulates self-resetting switch is just in time contrary, and a period of time (such as 5s) preserves current pulsewidth afterwards automatically; When pressing brightness regulation self-resetting switch, central controller controls power supply increases output current to control overall brightness (no matter which type of state load is in), the control pulsewidth of LED drive circuit, always to exist with the form for 1, stops increasing electric current and exports in time reaching the brightest; When again pressing brightness regulation self-resetting switch, central controller controls power supply reduces output current, a period of time (such as 5s) preserves current luminance state afterwards automatically, this makes it possible to make the driver and conductor's environmentally brightness of the autonomous electrodeless adjustment lamp of condition and colour temperature, be applicable to brightness and the adjustment of light color temperature gamut, facilitate driver and conductor to be adjusted to best effort environment, guarantee that driving is comfortable and safe; In addition, the utility model is by locomotive DC power supply, and by reducing electromagnetic interference in electromagnetic interface filter to circuit, the effect of rectifier bridge is that convenient installation, the power supply through rectifier bridge is powered to constant-current supply for not distinguishing positive and negative the dividing of input voltage.
Above-described specific embodiment; technical problem, technical scheme and beneficial effect that the utility model solves are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (3)
1. trainman's room illumination lamp of colour temperature and the electrodeless adjustment of brightness, it is characterized in that, it comprises:
The LED light source of at least two kinds of colors;
Colour temperature regulates self-resetting switch;
Brightness regulation self-resetting switch;
Central controller, colour temperature regulates the control output end of self-resetting switch to be connected with central controller so that central controller receives colour temperature and regulates the control command of self-resetting switch thus produce at least two-way PWM pulsewidth temperature adjustment signal, and the pulsewidth sum of all PWM pulsewidth temperature adjustment signals is 1; The control end of brightness regulation self-resetting switch is connected so that central controller receives the control command of brightness regulation self-resetting switch thus produces power control command with central controller;
Power supply, its control input end is connected with central controller so that it is for receiving power control command and controlling its output current;
At least two paths of LED drive circuit, the signal input part of LED drive circuit is connected with the signal output part of central controller, the power input of LED drive circuit and power supply are electrically connected, each LED drive circuit is coupled to the LED light source of corresponding a kind of color, and be provided with control switch in each LED drive circuit, LED drive circuit controls the drive current of the LED light source of corresponding color for the output current receiving corresponding PWM pulsewidth temperature adjustment signal and power supply.
2. trainman's room illumination lamp of colour temperature according to claim 1 and the electrodeless adjustment of brightness, it is characterized in that: described power supply comprises the locomotive DC power supply, electromagnetic interface filter, rectifier bridge and the constant-current supply that are connected successively, the output of constant-current supply is connected with at least two paths of LED drive circuit, and the control input end of constant-current supply is connected with central controller.
3. trainman's room illumination lamp of colour temperature according to claim 1 and 2 and the electrodeless adjustment of brightness, is characterized in that: described central controller is also connected with thermal-shutdown circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647081.XU CN204272438U (en) | 2014-10-31 | 2014-10-31 | Trainman's room illumination lamp of colour temperature and the electrodeless adjustment of brightness |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647081.XU CN204272438U (en) | 2014-10-31 | 2014-10-31 | Trainman's room illumination lamp of colour temperature and the electrodeless adjustment of brightness |
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| CN204272438U true CN204272438U (en) | 2015-04-15 |
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| CN201420647081.XU Active CN204272438U (en) | 2014-10-31 | 2014-10-31 | Trainman's room illumination lamp of colour temperature and the electrodeless adjustment of brightness |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105491729A (en) * | 2016-01-22 | 2016-04-13 | 常州星宇车灯股份有限公司 | Automobile indoor atmosphere lamp light modulation circuit |
| CN105792425A (en) * | 2016-04-12 | 2016-07-20 | 广州智航电子科技有限公司 | Vehicle LED chromaticity and brightness regulation device |
| CN106793343A (en) * | 2017-02-16 | 2017-05-31 | 佛山市三锦照明有限公司 | Vehicle intelligent lamp light control system |
| CN108601163A (en) * | 2018-07-04 | 2018-09-28 | 中山市古镇艳阳灯饰厂 | A kind of intelligent lamp and intelligent domestic system |
| CN108601164A (en) * | 2018-07-04 | 2018-09-28 | 中山市古镇艳阳灯饰厂 | A kind of intelligent lamp and its intelligent domestic system of application |
| CN114582090A (en) * | 2022-02-27 | 2022-06-03 | 武汉铁路职业技术学院 | Rail vehicle drives monitoring and early warning system |
-
2014
- 2014-10-31 CN CN201420647081.XU patent/CN204272438U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105491729A (en) * | 2016-01-22 | 2016-04-13 | 常州星宇车灯股份有限公司 | Automobile indoor atmosphere lamp light modulation circuit |
| CN105491729B (en) * | 2016-01-22 | 2017-12-08 | 常州星宇车灯股份有限公司 | A kind of car room atmosphere lamp light adjusting circuit |
| CN105792425A (en) * | 2016-04-12 | 2016-07-20 | 广州智航电子科技有限公司 | Vehicle LED chromaticity and brightness regulation device |
| CN106793343A (en) * | 2017-02-16 | 2017-05-31 | 佛山市三锦照明有限公司 | Vehicle intelligent lamp light control system |
| CN108601163A (en) * | 2018-07-04 | 2018-09-28 | 中山市古镇艳阳灯饰厂 | A kind of intelligent lamp and intelligent domestic system |
| CN108601164A (en) * | 2018-07-04 | 2018-09-28 | 中山市古镇艳阳灯饰厂 | A kind of intelligent lamp and its intelligent domestic system of application |
| CN114582090A (en) * | 2022-02-27 | 2022-06-03 | 武汉铁路职业技术学院 | Rail vehicle drives monitoring and early warning system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 213011 Jiangsu Province, Changzhou city Qishuyan District Qi factory workshop, a -201 No. 29 North Patentee after: Chen Xiaoting Address before: 214171 Jiangsu city in Wuxi Province town of Huishan District Tong Tong Tau Fu Road No. 9 Patentee before: Chen Xiaoting |