A kind of panel computer avoiding electricity to wasteTechnical field
The utility model relates to a kind of dull and stereotyped, refers in particular to a kind of panel computer avoiding electricity to waste.
Background technology
Becoming more and more popular of present panel computer, the stand-by time of panel computer weighs the very important index of panel computer performance.The backlight LED of panel computer is the parts that panel computer power consumption is very large, in order to extend panel computer service time, saves the power consumption of panel computer, and everybody manages in idea the power consumption reducing panel computer backlight.Existing panel computer backlight is generally by timing, if a period of time does not operate, closes backlight.Certain user also can hard closing backlight by pressing screen locking key.But a lot of situation is that user is not using panel computer now, but backlight is but lit, and as panel computer does not use, but software message pushes, and backlight is just lit, and causes the waste of electric energy, the shortening of stand-by time.
Summary of the invention
The technical problems to be solved in the utility model, is to provide a kind of panel computer avoiding electricity to waste, solves the problem that the energy consumption of existing panel computer is high.
The utility model is achieved in that
A kind of panel computer avoiding electricity to waste, comprise body, body one side has display screen, body while be provided with HOME key, the another side inside of body has the support column perpendicular to display screen of a hollow, one end of described support column is embedded on the shell of body, the other end of support column is connected with the probe of human body infrared inductor, interior of mobile phone also comprises energy-saving circuit, energy-saving circuit comprises triode, resistance and with door chip, the base stage of triode is connected with the output terminal of human body infrared inductor, the collector of triode is connected with positive source, the emitter of triode is connected with one end of resistance with an input end of door chip, the other end of resistance is connected with power cathode, be connected with the output terminal of backlight drive circuit with another input end of door chip, be connected with the positive pole of backlight LED with the output terminal of door chip, the negative pole of backlight LED is connected with power cathode.
The utility model has the advantage of: the screen of this flat board is when nobody sees (namely panel computer screen does not use), just close backlight LED, greatly reduce panel computer energy consumption, when screen has people to see, just according to normal backlight drive state, meet the demand that user uses.
Accompanying drawing explanation
The utility model is further described with reference to the accompanying drawings in conjunction with the embodiments.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is profile schematic diagram of the present utility model.
Fig. 3 is the circuit diagram of the circuit in the utility model.
Embodiment
Refer to shown in Fig. 1 to Fig. 3, a kind of panel computer avoiding electricity to waste, comprise body 1, body 1 one side has display screen 2, body 1 while be provided with HOME key (i.e. homepage key), the another side inside of body 1 has the support column 3 perpendicular to display screen of a hollow, one end of described support column 3 is embedded on the shell of body 1, the other end of support column 3 is connected with the probe 4 of human body infrared inductor, interior of mobile phone also comprises energy-saving circuit, energy-saving circuit comprises triode Q1, resistance R1 and with door chip U1, the base stage of triode Q1 is connected with the output terminal of human body infrared inductor, the collector of triode Q1 is connected with positive source, the emitter of triode Q1 is connected with one end of resistance R1 with an input end of door chip U1, the other end of resistance R1 is connected with power cathode, be connected with the output terminal of backlight drive circuit with another input end of door chip U2, be connected with the positive pole of backlight LED L1 with the output terminal of door chip U1, the negative pole of backlight LED L1 is connected with power cathode.Wherein, human body infrared inductor is existing element, and it has probe, can export high level after sensing human body infrared, and do not sense then output low level, the utility model is not repeated herein.
In certain embodiments, these elements can select following model: power supply selects the 3.7V power supply of lithium battery, and triode Q1 selects 8050 triodes, and resistance selects 10K, select 7408 with door chip, select the rated operational voltage of backlight LED L1 with door chip power supply voltage.The utility model in use, when face faces display screen, human body infrared can arrive on the probe of human body infrared inductor by the hollow of support column, now human body infrared inductor exports high level, triode Q1 conducting, then driving with an input end of door chip U1 is high level, when now backlight drive circuit is high level, then export as high level with door chip U1, when now backlight drive circuit is low level, export as low level with door chip U1, namely backlight drive circuit (namely driving the circuit of backlight LED work) can driven backlight LED L1, namely when people sees display screen, the backlight of display screen can normally work.When face leaves display screen, namely after need not seeing display screen, the probe of human body infrared inductor then cannot sense, human body infrared inductor output low level, triode Q1 not conducting is low level with an input end of door chip, then with door chip output low level always, now backlight LED L1 is in closed condition completely, saves electricity, avoids the waste of electricity.Support column of the present utility model can block the infrared of other positions of human body, avoids the infrared impact on probe in other positions of human body.
In certain embodiments, the utility model also includes for the WIFI circuit with router communication.
The above embodiment, just better embodiment of the present utility model, be not limit the utility model practical range, therefore all equivalences done according to structure, feature and the principle described in the utility model claim change or modify, and all should comprise in the utility model patent claim.