CN2935673Y - TV set heat radiator - Google Patents
TV set heat radiator Download PDFInfo
- Publication number
- CN2935673Y CN2935673Y CN 200620017934 CN200620017934U CN2935673Y CN 2935673 Y CN2935673 Y CN 2935673Y CN 200620017934 CN200620017934 CN 200620017934 CN 200620017934 U CN200620017934 U CN 200620017934U CN 2935673 Y CN2935673 Y CN 2935673Y
- Authority
- CN
- China
- Prior art keywords
- fan
- television set
- triode
- temperature
- heat abstractor
- 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
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- Control Of Positive-Displacement Air Blowers (AREA)
- Control Of Temperature (AREA)
Abstract
The utility model discloses a television heat-radiation device comprising a fan that is connected with a power source. The television heat-radiation device also comprises a temperature detector and a controlling switch. When the temperature of the television reaches at a designated value, the controlling switch communicates the fan power-supply circuit to control the rotation of the fan. Compared to the existing television heat-radiation device, the utility model increases the temperature detection resistance; when the temperature at the interior of the television reaches at the designated value, the fan is actuated, which prolongs the service life of the fan.
Description
[technical field]
The utility model heat abstractor relates in particular to the heat abstractor of television set.
[background technology]
Present PDP TV or the too high problem of LCD TV built-in temperature increase one or more fans usually, make air formation convection current in the machine, reduce built-in temperature.But PDP TV or LCD TV fan are to start shooting just to start working, also operate as normal of fan under the not high situation of built-in temperature.Reduce the useful life of fan like this, brought the trouble of frequent replacing fan.
[utility model content]
Technical problem to be solved in the utility model is, a kind of television set heat abstractor is provided, and has solved the problem that existing television set heat abstractor can't use for a long time.
The technical scheme that the utility model adopted is: a kind of television set heat abstractor is provided, comprise fan, described fan is connected with power supply, described television set heat abstractor also comprises Temperature Detector and control switch, when the temperature of television set reaches designated value, described Temperature Detector control control switch conducting fan current supply circuit rotates fan.
More specifically, described control switch is a NPN type triode, and described Temperature Detector is a thermistor, and described thermistor and temperature detection resistance are connected in series, and are connected in parallel with fan; Described triode is connected with fan and temperature detection resistance, and when the resistance of described thermistor reached designated value, described triode conducting fan and thermistor rotated fan.
The utility model compared with prior art, beneficial effect is: television set heat abstractor of the present utility model is compared with existing television set heat abstractor, increased temperature detection resistance, triode conducting when the television set temperature inside reaches designated value starts fan; When temperature was reduced to designated value, fan stopped operating, and had significantly reduced the time that fan rotates, and had prolonged the useful life of fan.
[description of drawings]
Fig. 1 is a television set heat abstractor schematic diagram of the present utility model.
[embodiment]
As shown in Figure 1, television set heat abstractor of the present utility model comprises fan FAN, temperature detection resistance R1, resistance R 2 and triode Q1, and described fan FAN and resistance R 2 are connected in parallel, and is connected with described resistance R 1 by triode Q1.Described television set heat abstractor is installed on the television set, and by the voltage running that television set provides, television set is dispelled the heat.
The end of described fan FAN is connected in triode Q1, and the other end is connected in television set, connects the voltage of 12V usually.
Described triode Q1 is a NPN type triode.Three ends of described triode Q1 respectively are connected in fan FAN, resistance R 1 and earth terminal.
Described resistance R 1 is PTC (being semistor), carries out temperature detection.Described resistance R 1 becomes big with temperature rising resistance.Described resistance R 1 is connected in the end of triode Q1.When, when temperature was elevated to designated value, when making the resistance of R1 increase to the voltage of getting on the R1 just in time to be the Vbe of Q1 conducting, fan began to rotate, and television set is lowered the temperature; When temperature was reduced to designated value, the voltage that makes the resistance of R1 be reduced to get on the R1 was during less than the Vbe of Q1 conducting, and fan stops operating.
Described resistance R 2 is common resistance, and resistance value immobilizes.Described resistance R 2 is connected in series with described resistance R 1, and is connected in parallel with described fan FAN.Described resistance R 2 is carried out voltage matches with described resistance R 1.
Television set heat abstractor of the present utility model has increased temperature detection resistance, and triode conducting when the television set temperature inside reaches certain value starts fan, and television set is lowered the temperature; Not conducting of triode when temperature is reduced to certain value, fan stops operating.Like this, significantly reduce the time that fan rotates, prolonged the useful life of fan.
Claims (2)
1, a kind of television set heat abstractor, comprise fan, described fan is connected with power supply, it is characterized in that, described television set heat abstractor also comprises Temperature Detector and mains switch, and described mains switch is serially connected in the current supply circuit of described fan, when the temperature that detects television set of described Temperature Detector reaches designated value, described Temperature Detector control mains switch closure is rotated fan.
2, television set heat abstractor as claimed in claim 1 is characterized in that, described control switch is a NPN type triode, and described Temperature Detector is a thermistor; Described television set heat abstractor also comprises divider resistance, one end of described divider resistance is connected with power supply, the other end is connected with thermistor, and an end of described fan is connected with the c utmost point of described triode, and the b utmost point of triode is connected between divider resistance and the thermistor, temperature rising when television set, thereby the resistance of thermistor rises, when the b utmost point of described triode and the voltage between the e utmost point reach the given voltage value, and the triode conducting, connect fan language thermistor, fan is rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620017934 CN2935673Y (en) | 2006-08-24 | 2006-08-24 | TV set heat radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620017934 CN2935673Y (en) | 2006-08-24 | 2006-08-24 | TV set heat radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2935673Y true CN2935673Y (en) | 2007-08-15 |
Family
ID=38352355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620017934 Expired - Fee Related CN2935673Y (en) | 2006-08-24 | 2006-08-24 | TV set heat radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2935673Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104427691A (en) * | 2013-08-23 | 2015-03-18 | 深圳市海洋王照明工程有限公司 | Lamp and heat dissipation circuit thereof |
| CN107749962A (en) * | 2017-12-05 | 2018-03-02 | 北海华源电子有限公司 | Panel TV set with the set top box protective cover that can radiate |
| CN107920216A (en) * | 2017-12-05 | 2018-04-17 | 北海华源电子有限公司 | Panel TV set equipped with the set-top box protective cover with radiator |
| CN107948558A (en) * | 2017-12-05 | 2018-04-20 | 北海华源电子有限公司 | Panel TV set with high heat dissipation set-top box protective cover |
| CN107959869A (en) * | 2017-12-05 | 2018-04-24 | 北海华源电子有限公司 | Panel TV set equipped with the set-top box protective cover easy to heat dissipation |
-
2006
- 2006-08-24 CN CN 200620017934 patent/CN2935673Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104427691A (en) * | 2013-08-23 | 2015-03-18 | 深圳市海洋王照明工程有限公司 | Lamp and heat dissipation circuit thereof |
| CN107749962A (en) * | 2017-12-05 | 2018-03-02 | 北海华源电子有限公司 | Panel TV set with the set top box protective cover that can radiate |
| CN107920216A (en) * | 2017-12-05 | 2018-04-17 | 北海华源电子有限公司 | Panel TV set equipped with the set-top box protective cover with radiator |
| CN107948558A (en) * | 2017-12-05 | 2018-04-20 | 北海华源电子有限公司 | Panel TV set with high heat dissipation set-top box protective cover |
| CN107959869A (en) * | 2017-12-05 | 2018-04-24 | 北海华源电子有限公司 | Panel TV set equipped with the set-top box protective cover easy to heat dissipation |
| CN107920216B (en) * | 2017-12-05 | 2020-05-05 | 北海华源电子有限公司 | Flat-panel television with set-top box protective cover with heat dissipation device |
| CN107959869B (en) * | 2017-12-05 | 2020-07-21 | 北海华源电子有限公司 | Flat-panel television with set top box protective cover convenient for heat dissipation |
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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: 20070815 Termination date: 20130824 |