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Projector with battery and its power supply method

A technology of projectors and batteries, which is applied in the direction of instruments, optics, projection devices, etc., can solve the problems that cannot be automatically controlled, and the projector does not have the ability to automatically detect whether the mains supply stops supplying power, etc., so as to prolong the life and prevent damage.

Inactive Publication Date: 2008-02-13
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of projector does not have the function of automatically detecting whether the mains supply stops providing power, so when the mains stops supplying power to this kind of projector, this kind of projector just cannot automatically control the backup battery to supply power to this kind of projector. The fan of the projector provides the operating voltage to make the fan rotate, thereby dissipating heat for the projector

Method used

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  • Projector with battery and its power supply method
  • Projector with battery and its power supply method
  • Projector with battery and its power supply method

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Experimental program
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Embodiment Construction

[0015] As shown in FIG. 1 , it is a block diagram of the projector 10 in the first embodiment. The projector 10 includes a processing unit 11 , a power management unit 12 , a commercial power supply unit 13 , a light source lamp driving unit 14 , a light source lamp 15 and a fan 16 . The commercial power supply unit 13 steps down the commercial power, and then provides the processing unit 11 with a working voltage through the power management unit 12 . After the processing unit 11 is powered on and initialized, it controls the power management unit 12 to provide working voltage for each component of the projector 10 , for example, the power management unit 12 provides working voltage for the light source lamp driving unit 14 to light the light source lamp 15 .

[0016] The projector 10 also includes a battery 17 and a temperature sensing unit 18 . The battery 17 can be a rechargeable battery or a non-rechargeable battery. When the commercial power supply unit 13 stops supplyi...

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PUM

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Abstract

The invention provides a projector with battery, including a power management unit, a commercial power supply unit, a processing unit, a fan and a battery. The commercial power supply unit supplies working pressure to the processing unit through the power management unit. The processing unit after electric initialization controls the power management unit to provide working pressure to all parts of the projector. The battery is connected with the power management unit; when the commercial power supply unit stops power supply, the power management unit is switched into the battery to supply working pressure for the fan and the fan rotates to cool the projector, thus further extending the service life of source lamp of the projector and avoiding damages of other parts of the projector. The invention also provides a power supply method of projector with battery.

Description

technical field [0001] The invention relates to a projector and a power supply method thereof, in particular to a projector with a battery and a power supply method thereof. Background technique [0002] In the prior art, a projector is provided with a light source lamp. When the light source lamp provides a light source, relatively high heat will be generated. If the heat cannot be dissipated in time, the life of the light source lamp will be shortened. The projector Other components may also be burned. [0003] In order to dissipate the heat inside the projector in time, a cooling fan is arranged inside the projector, and the cooling fan rotates continuously to dissipate heat. And when the projector stops outputting signals, the projector also needs to continue to supply the cooling fan with commercial power, and the commercial power cannot be disconnected until the internal temperature of the projector drops to a preset temperature. Therefore, the user needs to wait abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/16G03B21/00
CPCG03B21/16
Inventor 杨静李晓光谢冠宏李兵
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD