CN101246372A - Automatic temperature control device and method for display terminal - Google Patents
Automatic temperature control device and method for display terminal Download PDFInfo
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- CN101246372A CN101246372A CNA2007100639867A CN200710063986A CN101246372A CN 101246372 A CN101246372 A CN 101246372A CN A2007100639867 A CNA2007100639867 A CN A2007100639867A CN 200710063986 A CN200710063986 A CN 200710063986A CN 101246372 A CN101246372 A CN 101246372A
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Abstract
The invention discloses a device and method for indicating terminal automatic thermoregulation comprising temperature inductive element, control unit, fan mounted on indication terminal. The control unit is electrically connected with the fan. The temperature inductive element gathers temperature signal in the indication terminal and transfers the signal to the control unit. The control unit controls the revolution rate of fan according to the received temperature signal to realize temperature regulation of indication terminal and maintain the temperature in the indication terminal in a normal range in order to improve entire property and make the indication terminal more stable and long lived. The device is suitable for LCD indication terminal also for other indication terminals.
Description
Technical field
The present invention relates to a kind of display terminal control technology, relate in particular to a kind of device and method of display terminal automatic temperature-control.
Background technology
Development along with display technique, increasing liquid crystal display terminal begins to replace traditional CRT (cathode-ray tube (CRT)) display terminal, the liquid crystal display of liquid crystal display terminal the inside includes backlight lamp tube and backlight circuit part, when backlight lamp tube is lighted liquid crystal display, also can emit a large amount of heats, the inner other parts component units of liquid crystal display terminal also can be emitted a large amount of heats simultaneously, if these heats carry out snap-out release, can make the internal temperature of liquid crystal display terminal very high, if long-term work is under such environment, can quicken the aging of various electronic devices and components, shorten the life-span of liquid crystal display terminal, even cause fault easily.
Summary of the invention
The device and method that the purpose of this invention is to provide a kind of display terminal automatic temperature-control, this device and method can be adjusted the temperature of display terminal can be not too high.
The objective of the invention is to be achieved through the following technical solutions:
The device of display terminal automatic temperature-control of the present invention, be used to adjust the temperature of display terminal, comprise temperature sensitive member, control module, described temperature sensitive member is electrically connected with control module, described display terminal is provided with register, and described control module is electrically connected with register.
Described control module comprises CPU, temperature sense control circuit, temperature adjustment circuit, the temperature signal of the display terminal of described temperature sensitive member collection is passed to the temperature sense control circuit, the temperature sense control circuit is passed to CPU after the temperature signal that receives is handled, CPU adjusts circuit according to the signal controlling temperature that receives, and described temperature is adjusted circuit and is electrically connected with register.
Described register is a fan.
The method of display terminal automatic temperature-control of the present invention may further comprise the steps:
A, temperature sensitive member are gathered display terminal temperature inside signal, and send signal to control module;
B, control module are according to the temperature signal that receives, and the control register is realized the temperature adjustment to display terminal.
Described steps A comprises step:
A1, temperature sensitive member gather the simulating signal of display terminal internal temperature, and simulating signal is passed to the temperature sense control circuit;
A2, temperature sense control circuit become digital signal with analog signal conversion, and send digital signal to CPU.
Among the described step B, control module is set a plurality of temperature class, the different rotating speed of the corresponding fan of each temperature class.
Among the described step B, CPU adjusts the rotating speed that circuit is adjusted fan according to the residing temperature class of temperature signal that receives by temperature.
Described temperature class is 5 grades.
It controls register automatically according to the internal temperature of display terminal, adjusts the temperature of display terminal, and described display terminal is a LCDs.
As seen from the above technical solution provided by the invention, the device and method of display terminal automatic temperature-control of the present invention, owing to comprise temperature sensitive member, control module, display terminal is provided with register, control module is electrically connected with register.Temperature sensitive member is gathered display terminal temperature inside signal, and send signal to control module, control module is according to the temperature signal that receives, the control register, realization makes the display terminal internal temperature remain on a normal scope of using, thereby improves the complete machine performance the temperature adjustment of display terminal, it is more stable that display terminal is used, and the life-span is more permanent.Mainly be applicable to liquid crystal display terminal, also be applicable to other display terminal.
Description of drawings
Fig. 1 is the structure principle chart of the device of display terminal automatic temperature-control of the present invention;
Fig. 2 is the schematic diagram of the temperature sense control circuit of the device of display terminal automatic temperature-control of the present invention;
Fig. 3 adjusts the schematic diagram of circuit for the temperature of the device of display terminal automatic temperature-control of the present invention.
Embodiment
The device of display terminal automatic temperature-control of the present invention, be used to adjust the temperature of display terminal, its preferable embodiment as shown in Figure 1, comprise temperature sensitive member, control module, described temperature sensitive member is electrically connected with control module, described display terminal is provided with register, and described control module is electrically connected with register.The display terminal here mainly refers to liquid crystal display terminal, also can be other display terminal.
Described control module comprises CPU, temperature sense control circuit, temperature adjustment circuit, the temperature signal of the display terminal of described temperature sensitive member collection is passed to the temperature sense control circuit, the temperature sense control circuit is passed to CPU after the temperature signal that receives is handled, CPU adjusts circuit according to the signal controlling temperature that receives, and described temperature is adjusted circuit and is electrically connected with register.Described register is preferably fan, also can be other device.
As shown in Figure 2, be said temperature inductive control circuit schematic diagram.Realize communicating by letter of temperature sensitive member and CPU by this circuit, reach the conversion of simulating signal and digital signal.
As shown in Figure 3, be that said temperature is adjusted circuit theory diagrams.Realize the control of CPU by this circuit for fan work voltage, thus the rotating speed of control fan.
The method of display terminal automatic temperature-control of the present invention may further comprise the steps:
Step 1, temperature sensitive member are gathered display terminal temperature inside signal, and send signal to control module;
Described step 1 comprises step:
Step 11, temperature sensitive member are gathered the simulating signal of display terminal internal temperature, and simulating signal is passed to the temperature sense control circuit;
Step 12, temperature sense control circuit become digital signal with analog signal conversion, and send digital signal to CPU.
In the described step 2, control module is set a plurality of temperature class, the different rotating speed of the corresponding fan of each temperature class.CPU adjusts the operating voltage that circuit is adjusted fan according to the residing temperature class of temperature signal that receives by temperature, and then adjusts the rotating speed of fan, realizes the temperature adjustment to display terminal.
Described temperature class is preferably 5 grades.Also can be the class of other quantity as required.Internal temperature according to display terminal is controlled register automatically, adjusts the temperature of display terminal.
Specifically be that temperature sensitive member and fan are installed in the liquid crystal display terminal fuselage, the control end of temperature sensitive member is connected on the temperature sense control circuit of control module, and fan is connected to the temperature of control module and adjusts on the circuit.Temperature sensitive member is gathered display terminal temperature inside signal, and is undertaken sending CPU to after mould/number conversion by the temperature sense control circuit.
The temperature of several scopes of design temperature and each scope correspondence is adjusted the magnitude of voltage of circuit in the program of CPU, and the rotating speed of the operating voltage control fan by regulating fan is realized the temperature adjustment to display terminal.
After CPU receives temperature signal,, judge temperature in which scope of setting, export correspondent voltage then to fan according to the temperature data that the setting and the temperature sensitive member of program are gathered.
Control module generally is provided with the fan control pin and links to each other with the display terminal internal fan, and the voltage of fan control pin is just determining the rotating speed of fan.When the control pin voltage changed, the rotating speed of fan will change, and then its environment temperature range of decrease is big soon for rotation speed of the fan, and then its environment temperature range of decrease is little slowly for rotation speed of the fan, thereby realized the automatic adjustment of temperature.
A specific embodiment is set at 5 scopes to temperature in the CPU program.At first when temperature was lower than 32 ℃, the voltage that control module outputs to the fan control pin was 0, and this moment, fan was not worked.When having only temperature to be higher than 32 ℃, just entry into service of fan.When temperature is equal to or higher than 32 ℃ and when being lower than 40 ℃, the voltage that control module outputs to the control pin of fan is 0.25 times of maximum voltage, when temperature is equal to or higher than 40 ℃ and when being lower than 50 ℃, the voltage that control module outputs to the control pin of fan is 0.5 times of maximum voltage, when temperature is equal to or higher than 50 ℃ and when being lower than 60 ℃, the voltage that control module outputs to the control pin of fan is 0.75 times of maximum voltage, when temperature when being equal to or higher than 60 ℃, the voltage that control module outputs to the control pin of fan is maximum voltage.
Temperature sensitive member is gathered the temperature signal around it, and is sent to CPU by the temperature sense control circuit, and which scope CPU judges the temperature of gathering in according to the setting of program, and the output correspondent voltage is to the fan control pin.The voltage of fan control pin is determining the rotating speed of fan.For example, if CPU judges temperature in 40 ℃ to 50 ℃ scopes, the voltage that outputs to the fan control pin so is exactly 0.5 times of maximum voltage, and the rotating speed of fan is exactly 50% of its maximum speed.By that analogy, other several scope reasons are the same.
Temperature signal around temperature sensitive member can constantly be gathered is sent to CPU by the temperature sense control circuit, and which scope CPU judges the temperature of gathering in according to the setting of program, and the output correspondent voltage is to the fan control pin.The voltage of fan control pin is determining the rotating speed of fan, realizes the automatic adjustment to the display terminal temperature.
The method that the present invention adopts circuit system to match with fan, behind the temperature sensitive member collecting temperature, control module is regulated the running speed of fan, thereby realization temperature auto control, the liquid crystal display terminal internal temperature remains on a normal scope of using, thereby improve the complete machine performance, it is more stable that display terminal is used, and the life-span is more permanent.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (9)
1. the device of a display terminal automatic temperature-control, be used to adjust the temperature of display terminal, it is characterized in that, comprise temperature sensitive member, control module, described temperature sensitive member is electrically connected with control module, described display terminal is provided with register, and described control module is electrically connected with register.
2. the method for display terminal automatic temperature-control according to claim 1, it is characterized in that, described control module comprises CPU, temperature sense control circuit, temperature adjustment circuit, the temperature signal of the display terminal of described temperature sensitive member collection is passed to the temperature sense control circuit, the temperature sense control circuit is passed to CPU after the temperature signal that receives is handled, CPU adjusts circuit according to the signal controlling temperature that receives, and described temperature is adjusted circuit and is electrically connected with register.
3. the method for display terminal automatic temperature-control according to claim 1 and 2 is characterized in that, described register is a fan.
4. the method for a display terminal automatic temperature-control is characterized in that, may further comprise the steps:
A, temperature sensitive member are gathered display terminal temperature inside signal, and send signal to control module;
B, control module are according to the temperature signal that receives, and the control register is realized the temperature adjustment to display terminal.
5. the method for display terminal automatic temperature-control according to claim 4 is characterized in that, described steps A comprises step:
A1, temperature sensitive member gather the simulating signal of display terminal internal temperature, and simulating signal is passed to the temperature sense control circuit;
A2, temperature sense control circuit become digital signal with analog signal conversion, and send digital signal to CPU.
6. the method for display terminal automatic temperature-control according to claim 4 is characterized in that, among the described step B, control module is set a plurality of temperature class, the different rotating speed of the corresponding fan of each temperature class.
7. the method for display terminal automatic temperature-control according to claim 6 is characterized in that, among the described step B, CPU adjusts the rotating speed that circuit is adjusted fan according to the residing temperature class of temperature signal that receives by temperature.
8. according to the method for claim 6 or 7 described display terminal automatic temperature-controls, it is characterized in that described temperature class is 5 grades.
9. according to the method for each described display terminal automatic temperature-control of claim 4 to 7, it is characterized in that it controls register automatically according to the internal temperature of display terminal, adjust the temperature of display terminal, described display terminal is a LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100639867A CN101246372A (en) | 2007-02-15 | 2007-02-15 | Automatic temperature control device and method for display terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100639867A CN101246372A (en) | 2007-02-15 | 2007-02-15 | Automatic temperature control device and method for display terminal |
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| CN101246372A true CN101246372A (en) | 2008-08-20 |
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| CNA2007100639867A Pending CN101246372A (en) | 2007-02-15 | 2007-02-15 | Automatic temperature control device and method for display terminal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096425A (en) * | 2010-12-09 | 2011-06-15 | 深圳市摩拓触摸科技有限公司 | Constant-temperature control device for liquid crystal display television |
| CN102858133A (en) * | 2011-06-27 | 2013-01-02 | 中兴通讯股份有限公司 | Electronic equipment as well as heat dissipation control method and device of electronic equipment |
| WO2018023224A1 (en) * | 2016-07-31 | 2018-02-08 | 杨洁 | Usage data collection method during heat dissipation and heat dissipation device |
| WO2018023225A1 (en) * | 2016-07-31 | 2018-02-08 | 杨洁 | Heat dissipation technology information pushing method and heat dissipation device |
| CN110262583A (en) * | 2019-06-06 | 2019-09-20 | 深圳市火乐科技发展有限公司 | A kind of cooling control system, projector and its cooling control method |
-
2007
- 2007-02-15 CN CNA2007100639867A patent/CN101246372A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096425A (en) * | 2010-12-09 | 2011-06-15 | 深圳市摩拓触摸科技有限公司 | Constant-temperature control device for liquid crystal display television |
| CN102858133A (en) * | 2011-06-27 | 2013-01-02 | 中兴通讯股份有限公司 | Electronic equipment as well as heat dissipation control method and device of electronic equipment |
| CN102858133B (en) * | 2011-06-27 | 2017-10-17 | 中兴通讯股份有限公司 | Cooling control method, device and the electronic equipment of electronic equipment |
| WO2018023224A1 (en) * | 2016-07-31 | 2018-02-08 | 杨洁 | Usage data collection method during heat dissipation and heat dissipation device |
| WO2018023225A1 (en) * | 2016-07-31 | 2018-02-08 | 杨洁 | Heat dissipation technology information pushing method and heat dissipation device |
| CN110262583A (en) * | 2019-06-06 | 2019-09-20 | 深圳市火乐科技发展有限公司 | A kind of cooling control system, projector and its cooling control method |
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Open date: 20080820 |