CN2917204Y - PCB board heat radiation device - Google Patents
PCB board heat radiation device Download PDFInfo
- Publication number
- CN2917204Y CN2917204Y CN 200620060888 CN200620060888U CN2917204Y CN 2917204 Y CN2917204 Y CN 2917204Y CN 200620060888 CN200620060888 CN 200620060888 CN 200620060888 U CN200620060888 U CN 200620060888U CN 2917204 Y CN2917204 Y CN 2917204Y
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- CN
- China
- Prior art keywords
- pcb board
- pcb
- led
- utility
- model
- 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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- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The utility model discloses a PCB cooler, which comprises a PCB and a LED on the PCB, and is characterized in that: Back side of the PCB is provided with a semiconductor cooling pad. The cooling end of the semiconductor cooling pad is connected with the PCB. Conduction glue is arranged the semiconductor cooling pad and PCB. In addition, a high-power LED is provided. The utility model adopts semiconductor cooling pad to cool PCB, showing good effect and quick cooling. The cooling speed can be controlled by adjusting working current of the semiconductor cooling pad. The utility model has advantages of small size, applicability to cool on occasions with small mounting space and dense LED array, simple structure, easy realization and reliable operation.
Description
Affiliated technical field
The utility model relates to LED illumination application, especially a kind of pcb board heat abstractor.
Background technology
The heat abstractor of existing application on LED generally all is to add a radiating block at the back side of circuit board, dispels the heat in the mode that increases area of dissipation.For example the patent No. is 200410047327.0 technical scheme, earlier LED is arranged on the metallic object, LED and metallic object is arranged on the heat radiation pedestal again, on the heat radiation pedestal a plurality of heat radiation claspers is arranged.The heat radiation pedestal volume ratio of this scheme is bigger, installs also pretty troublesomely, and when the installing space of LED was smaller, this scheme was just impracticable.Therefore it is 200320100553.1 heat radiating type pcb board that the patent No. has been arranged, and this scheme volume is little, adopts to increase the pcb board external surface area to increase its area of dissipation.The scheme of the passive heat radiation of this class can also satisfy the heat radiation requirement under the smaller situation of LED heating, but when LED power slightly greatly and the LED dense arrangement time, this radiating mode just can not dispel the heat to the led circuit plate effectively.Above-mentioned two kinds of schemes all can not solve in the little space and the problem efficiently of dispelling the heat.
Summary of the invention
The purpose of this utility model is in order to address the above problem, provide a kind of volume little, be convenient to install and pcb board heat abstractor that radiating efficiency is high.
To achieve these goals, the technical solution adopted in the utility model is: a kind of pcb board heat abstractor, comprise pcb board and the LED that is arranged on the pcb board, it is characterized in that: also be provided with the conductor refrigeration sheet at the above-mentioned pcb board back side, the cold junction of above-mentioned conductor refrigeration sheet is connected with pcb board, between described conductor refrigeration sheet and the pcb board heat-conducting glue is arranged, described LED is a great power LED.
The utility model compared with prior art, its beneficial effect has: the utility model adopts the conductor refrigeration sheet that pcb board is lowered the temperature, good heat dissipation effect, cooling rate is fast, its cooling rate can also be controlled by the operating current of regulating the conductor refrigeration sheet.The utility model volume is little, is suitable for the radiating requirements under the situation of the smaller and LED dense arrangement of installing space.The utility model is simple in structure, and it is easily convenient, reliable to realize.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, present embodiment is arranged on LED on the pcb board 2, and the back side on pcb board 2 is coated with the last layer heat-conducting glue, pastes mutually with the cold junction of conductor refrigeration sheet 3.Because after the power supply, the heat of its cold junction is transferred to the hot junction to conductor refrigeration sheet 3 on logical, cause cold junction temperature to reduce, hot-side temperature raises.When the heat that produces when LED1 and pcb board 2 passes to conductor refrigeration sheet 3 cold junctions, give the conductor refrigeration sheet 3 energisings, the cold junction heat absorption of conductor refrigeration sheet 3, the transfer of heat that LED1 and pcb board 2 are produced dissipates to the hot junction of conductor refrigeration sheet 3.
Claims (3)
1, a kind of pcb board heat abstractor comprises pcb board and the LED that is arranged on the pcb board, and it is characterized in that: also be provided with the conductor refrigeration sheet at the above-mentioned pcb board back side, the cold junction of above-mentioned conductor refrigeration sheet is connected with pcb board.
2, pcb board heat abstractor according to claim 1 is characterized in that: between described conductor refrigeration sheet and the pcb board heat-conducting glue is arranged.
3, pcb board heat abstractor according to claim 1 is characterized in that: described LED is a great power LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620060888 CN2917204Y (en) | 2006-06-23 | 2006-06-23 | PCB board heat radiation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620060888 CN2917204Y (en) | 2006-06-23 | 2006-06-23 | PCB board heat radiation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2917204Y true CN2917204Y (en) | 2007-06-27 |
Family
ID=38188116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620060888 Expired - Fee Related CN2917204Y (en) | 2006-06-23 | 2006-06-23 | PCB board heat radiation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2917204Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374457A (en) * | 2011-09-29 | 2012-03-14 | 苏州承源光电科技有限公司 | Light-emitting diode (LED) street lamp |
-
2006
- 2006-06-23 CN CN 200620060888 patent/CN2917204Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374457A (en) * | 2011-09-29 | 2012-03-14 | 苏州承源光电科技有限公司 | Light-emitting diode (LED) street lamp |
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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: 20070627 |