CN202009527U - Air-cooling illuminating device - Google Patents
Air-cooling illuminating device Download PDFInfo
- Publication number
- CN202009527U CN202009527U CN2011201282952U CN201120128295U CN202009527U CN 202009527 U CN202009527 U CN 202009527U CN 2011201282952 U CN2011201282952 U CN 2011201282952U CN 201120128295 U CN201120128295 U CN 201120128295U CN 202009527 U CN202009527 U CN 202009527U
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- temperature
- constant current
- current driving
- air
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Abstract
The utility model relates to an air-cooling illuminating device which comprises a constant current driving unit and an illuminating unit connected to the constant current driving unit. The air-cooling illuminating device further comprises a fan and a fan driving unit. The constant current driving unit and the fan driving unit are connected to output of a temperature sensing unit. Temperature feedback connection is formed between the illuminating unit and the temperature sensing unit. The air-cooling illuminating device provided by the utility model can protect the illuminating unit of a lamp, particularly the illuminating unit in the form of an LED lamp bead, in a fan radiating process, and also can intelligently adjust the luminance of the illuminating unit according to temperature rise of the illuminating unit, thereby preventing the lamp from being damaged by fan fault or inferior radiating effect.
Description
Technical field
The utility model relates to lighting device, is concretely a kind ofly to carry out the lighting device of wind-cooling heat dissipating by carrying fan.
Background technology
Traditional LED Lamp cup almost all adopts metal shell heat radiation, so weight is heavier, and on heat-sinking capability 3 large-power LED light beads of load at most, this directly causes Lamp cup luminous flux deficiency, has limited use occasion.For the expanded application field, need to promote the heat-sinking capability of LED light fixture, and need to alleviate its weight simultaneously.As shown in Figure 1, the existing at present LED light fixture that uses the fan forced heat radiation, its structure is directly fans drive unit and LED lamp pearl to be powered by constant current driving unit, carries out wind-cooling heat dissipating by fans drive unit drives fan.But the problem of this structure is because radiating mode relies on fan fully, in case fan breaks down, the temperature in the LED Lamp cup can raise rapidly, and pearl will can be damaged the LED lamp very soon.
The utility model content
The utility model provides a kind of air-cooled lighting device, can be in fan heat radiation process, and to the luminescence unit of light fixture, particularly the luminescence unit of LED lamp pearl form is protected, and avoids because fan failure or radiating effect are bad light fixture being damaged.
Air-cooled lighting device of the present utility model, include constant current driving unit and the luminescence unit that is connected with described constant current driving unit, also comprise fan and fans drive unit, described constant current driving unit is connected with the output of temperature sensing unit with the fans drive unit, has Temperature Feedback between luminescence unit and the described temperature sensing unit and is connected.Temperature sensing unit is by receiving the Temperature Feedback of luminescence unit, and control is to the electric current input of constant current driving unit.When the luminescence unit feedback temperature that receives when temperature sensing unit is too high, promptly disconnect the input of constant current driving unit, thereby the protection luminescence unit can not be damaged.
Concrete, described temperature sensing unit includes the temperature/voltage transducer, and described temperature/voltage transducer exports voltage to comparator.The temperature/voltage transducer can be a correspondent voltage according to the temperature transition that receives, and the high more voltage that converts to of temperature is big more.Reference voltage by comparator and setting compares again, if less than reference voltage comparator output high level, if disconnect output greater than reference voltage comparator output low level.
A kind of preferred scheme is that described temperature/voltage converter model is TC1047A.The wider range that the temperature/voltage transducer of TC1047A is suitable for, and sensitivity and accuracy are higher, are fit to multiple again applications.
Another kind of preferred scheme is, described constant current driving unit comprises the integrated circuit modules with temperature perception, and the luminescence unit feedback temperature is to constant current driving unit.For protection luminescence unit that can be more intelligent, has the integrated circuit modules of temperature perception in the constant current driving unit.Along with the variations in temperature of luminescence unit feedback, described integrated circuit modules produces the output current of PWM (pulse-width modulation) the signal controlling constant current driving unit of a variation.If the feedback temperature of luminescence unit is too high, integrated circuit modules will reduce the electric current output of constant current driving unit, thus the protection luminescence unit.
In order to make luminescence unit can have characteristics such as long-life, low energy consumption and illumination effect are good, preferred luminescence unit is LED, also can go for the light-emitting device of constant current driving unit for other.
Concrete, the Lamp cup of LED has the GU5.3 interface.Lamp cup with GU5.3 interface is present common a kind of LED fitting structure, and wherein G represents that the type of lamp holder is a plug-in type, and U indication lamp head part presents the U font, numeral lamp base hole, back centre-to-centre spacing (unit is a millimeter " mm ").
Air-cooled lighting device of the present utility model; can be in fan heat radiation process; luminescence unit to light fixture; particularly the luminescence unit of LED lamp pearl form is protected; and the brightness of the intelligence adjusting luminescence unit that can raise according to the temperature of luminescence unit, avoid light fixture being damaged because fan failure or radiating effect are bad.
Below in conjunction with embodiment, foregoing of the present utility model is described in further detail again by the accompanying drawing illustrated embodiment.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.Do not breaking away under the above-mentioned technological thought situation of the utility model, various replacements or change according to ordinary skill knowledge and customary means are made all should be included in the scope of the present utility model.
Description of drawings
Fig. 1 is the module connection block diagram that traditional having carries the fan lighting device.
Fig. 2 is that the module of the air-cooled lighting device of the utility model connects block diagram.
Fig. 3 is the structured flowchart of temperature sensing unit among Fig. 2.
Embodiment
Air-cooled lighting device of the present utility model as shown in Figure 2 includes constant current driving unit and the luminescence unit that is connected with described constant current driving unit, and luminescence unit is to be that the LED of GU5.3 constitutes by the Lamp cup interface.Also include fan and fans drive unit, described constant current driving unit is connected with the output of temperature sensing unit with the fans drive unit, has Temperature Feedback between the luminescence unit that LED constitutes and the temperature sensing unit and is connected.The integrated circuit modules that in constant current driving unit, has the temperature perception, luminescence unit can feedback temperature to constant current driving unit.Along with the variations in temperature of luminescence unit feedback, the integrated circuit modules in the constant current driving unit produces the output current of PWM (pulse-width modulation) the signal controlling constant current driving unit of a variation.If the feedback temperature of luminescence unit is too high, integrated circuit modules will reduce the electric current output of constant current driving unit, thus the protection luminescence unit.
As shown in Figure 3, temperature sensing unit includes the temperature/voltage transducer that model is TC1047A, described temperature/voltage transducer exports voltage to comparator, exports constant current driving unit and fans drive unit to after by comparator input voltage and setting voltage being compared.The temperature/voltage transducer can be a correspondent voltage according to the temperature transition that receives, the high more voltage that converts to of temperature is big more, compare by comparator and predefined reference voltage again, if less than reference voltage comparator output high level, if disconnect output greater than reference voltage comparator output low level.
Temperature sensing unit is by receiving the Temperature Feedback of luminescence unit, and control is to the electric current input of constant current driving unit.When the luminescence unit feedback temperature that receives when temperature sensing unit is too high, promptly disconnect output, thereby the protection luminescence unit can not be damaged to constant current driving unit.
Claims (6)
1. air-cooled lighting device, include constant current driving unit and the luminescence unit that is connected with described constant current driving unit, also comprise fan and fans drive unit, it is characterized by described constant current driving unit and be connected with the output of temperature sensing unit, have Temperature Feedback between luminescence unit and the described temperature sensing unit and be connected with the fans drive unit.
2. air-cooled lighting device as claimed in claim 1 is characterized by described temperature sensing unit and includes the temperature/voltage transducer, and described temperature/voltage transducer exports voltage to comparator.
3. air-cooled lighting device as claimed in claim 2, it is characterized by described temperature/voltage converter model is TC1047A.
4. air-cooled lighting device as claimed in claim 1 is characterized by described constant current driving unit and comprises the integrated circuit modules with temperature perception, and the luminescence unit feedback temperature is to constant current driving unit.
5. as the described air-cooled lighting device of one of claim 1 to 4, it is characterized by described luminescence unit is LED.
6. air-cooled lighting device as claimed in claim 5, the Lamp cup that it is characterized by described LED has the GU5.3 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201282952U CN202009527U (en) | 2011-04-27 | 2011-04-27 | Air-cooling illuminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201282952U CN202009527U (en) | 2011-04-27 | 2011-04-27 | Air-cooling illuminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202009527U true CN202009527U (en) | 2011-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201282952U Expired - Fee Related CN202009527U (en) | 2011-04-27 | 2011-04-27 | Air-cooling illuminating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202009527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413619A (en) * | 2011-12-31 | 2012-04-11 | 重庆东灵网络信息技术有限责任公司 | Air-cooling radiation LED (light emitting diode) lamp |
-
2011
- 2011-04-27 CN CN2011201282952U patent/CN202009527U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413619A (en) * | 2011-12-31 | 2012-04-11 | 重庆东灵网络信息技术有限责任公司 | Air-cooling radiation LED (light emitting diode) lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 611731 Sichuan city of Chengdu province high tech Zone (West) New Road No. 2 Patentee after: Sichuan Sunfor Light Co., Ltd. Address before: 611731 Sichuan city of Chengdu province high tech Zone (West) New Road No. 2 Patentee before: Sichuan Sunfor Lighting Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20180427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |