CN202733832U - Power-driven cooling device for LED (light-emitting diode) lamps - Google Patents
Power-driven cooling device for LED (light-emitting diode) lamps Download PDFInfo
- Publication number
- CN202733832U CN202733832U CN2012204202969U CN201220420296U CN202733832U CN 202733832 U CN202733832 U CN 202733832U CN 2012204202969 U CN2012204202969 U CN 2012204202969U CN 201220420296 U CN201220420296 U CN 201220420296U CN 202733832 U CN202733832 U CN 202733832U
- Authority
- CN
- China
- Prior art keywords
- power
- electrolytic capacitor
- electric fan
- led
- power drives
- 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
Links
- 238000001816 cooling Methods 0.000 title abstract 5
- 239000003990 capacitor Substances 0.000 claims abstract description 26
- 230000000875 corresponding Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
Abstract
The utility model discloses a power-driven cooling device for LED (light-emitting diode) lamps, which can prolong the service life of an electrolytic capacitor. The power-driven cooling device for LED lamps comprises a power driver, wherein a circuit board of the power driver is provided with a cooling device, an electric fan of the cooling device is arranged on the circuit board of the power driver, the electric fan is opposite to an electrolytic capacitor on a power-driven area, positive and negative poles led out of the circuit board of the power driver are connected in series with the capacitor and the electric fan, and the capacitor and a resistor are connected in parallel. When the electrolytic capacitor works, heat generated by the electrolytic capacitor is blown away through the electric fan, so that the temperature of the electrolytic capacitor is reduced, thereby ensuring that the temperature of the electrolytic capacitor is kept in a normal operating temperature range, and prolonging the service life of the electrolytic capacitor.
Description
Technical field
The utility model relates to the power drives of LED lamp, particularly the power drives heat sink of LED lamp.
Background technology
The power drives service life of LED lamp and the electrochemical capacitor on the power drives have direct relation, and electrochemical capacitor its working life under different temperatures is widely different, and namely temperature is higher, and the life-span is shorter.Generally speaking, the life-span of electric capacity shortens with the rising of temperature, is apparent that electrolytic capacitor most.Limit of working temperature is 85 ℃ electrolytic capacitor, and when working under temperature is 20 ℃ condition, ordinary circumstance can guarantee 181019 hours normal working hours; And when working under the condition of 85 ℃ of limiting temperatures, ordinary circumstance only can guarantee 2000 hours normal working hours.
The utility model content
The purpose of this utility model provides a kind of power drives heat sink that can give improve the LED lamp of electrochemical capacitor working life.
Technical solutions of the utility model are finished like this, the power drives heat sink of LED lamp, it includes power drives, the power drives wiring board is provided with heat sink, the electric fan of heat sink is located on the power drives wiring board, electric fan is relative with electrochemical capacitor on being located at the power drives district, and the both positive and negative polarity of drawing on the power drives wiring board and electric capacity, electric fan are cascaded, and electric capacity and resistance are connected in parallel.
Technique effect of the present utility model is: during electrochemical capacitor work, by electric fan the heat that electrochemical capacitor produces is taken away, the temperature of electrochemical capacitor is reduced, guarantee that the temperature of electrochemical capacitor remains within the normal working temperature scope, improve its use and receive the order.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the circuit diagram of heat sink.
The specific embodiment
By reference to the accompanying drawings the utility model is described in further detail, the wiring board 1 of power drives is provided with power drives district, heat sink district, the both positive and negative polarity of drawing on the wiring board 1 electrical connection corresponding to the both positive and negative polarity of heat sink, the both positive and negative polarity of heat sink and capacitor C, electric fan 2 are cascaded, and capacitor C and resistance R are connected in parallel; Electric fan 2 is relative with electrochemical capacitor in the power drives district, and the wind that electric fan 2 produces is lowered the temperature to the electrochemical capacitor in the work to electrochemical capacitor, improves the working life of electrochemical capacitor.
Claims (1)
1.LED the power drives heat sink of lamp, it includes power drives, it is characterized in that: the power drives wiring board is provided with heat sink, the electric fan of heat sink is located on the power drives wiring board, electric fan is relative with electrochemical capacitor on being located at the power drives district, the both positive and negative polarity of drawing on the power drives wiring board and electric capacity, electric fan are cascaded, and electric capacity and resistance are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204202969U CN202733832U (en) | 2012-08-12 | 2012-08-12 | Power-driven cooling device for LED (light-emitting diode) lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204202969U CN202733832U (en) | 2012-08-12 | 2012-08-12 | Power-driven cooling device for LED (light-emitting diode) lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202733832U true CN202733832U (en) | 2013-02-13 |
Family
ID=47659527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204202969U Expired - Fee Related CN202733832U (en) | 2012-08-12 | 2012-08-12 | Power-driven cooling device for LED (light-emitting diode) lamps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202733832U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728805A (en) * | 2013-12-19 | 2015-06-24 | 西安恒飞电子科技有限公司 | Power supply device for driving LED lamp |
| CN104735948A (en) * | 2013-12-19 | 2015-06-24 | 西安恒飞电子科技有限公司 | Power supply detection alarm power supply device |
-
2012
- 2012-08-12 CN CN2012204202969U patent/CN202733832U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728805A (en) * | 2013-12-19 | 2015-06-24 | 西安恒飞电子科技有限公司 | Power supply device for driving LED lamp |
| CN104735948A (en) * | 2013-12-19 | 2015-06-24 | 西安恒飞电子科技有限公司 | Power supply detection alarm power supply device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20130812 |