Method and device for determining liquid adding and alarming time of liquid cooling system of projector
A technology of alarm time and determination method, which is applied to projection devices, measuring devices, lubrication indicating devices, etc., can solve problems such as bad, liquid leakage, affecting the use of projectors, etc., to avoid inaccurate liquid addition time and save manpower and material resources. Effect
Inactive Publication Date: 2014-02-26
GUANGDONG VTRON TECH CO LTD
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Problems solved by technology
However, the projector may leak liquid after leaving the factory and during use. Once liquid leakage occurs, the liquid filling time given by the manufacturer will no longer apply, which will seriously affect the use of the projector and cause bad results.
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[0022] The specific implementation method of the method for adding liquid to the projector liquid cooling system and determining the alarm time of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0023] Such as figure 2 As shown, a method for determining liquid addition and alarm time of a projector liquid cooling system includes steps:
[0024] S110. Place one of the reflective photoelectric switches of the liquid level detection plate at the preset first detection point at the current speed of the liquid pump, and place the other reflective photoelectric switch at the preset second detection point, the The second detection point is lower than the first detection point, wherein the first detection point is used to judge whether liquid needs to be added, and the second detection point is used to judge whether the liquid level is too low;
[0025] S120. If the rotation speed of the liquid pump changes, move the small pla...
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The invention relates to a method and device for determining liquid adding and alarming time of a liquid cooling system of a projector. The method includes the steps that one of reflection-type optoelectronic switches of a small liquid level detection plate is placed on a first detection point preset at the current rotation speed of a liquid pump, the other one of the reflection-type optoelectronic switches is placed on a preset second detection point, and the second detection point is lower than the first detection point; if the rotation speed of the liquid pump changes, the small liquid level detection plate is moved according to determined displacement, and thus a new first detection point and a new second detection point which correspond to the reflection-type optoelectronic switches are obtained after the small liquid level detection plate is moved; the height of the liquid level is compared with the height of the new first detection point and the height of the new second detection point, and whether corresponding liquid adding prompt information and alarming information are displayed or not is determined according to the comparison result. With the method and device, changes of the liquid level can be detected in real time, the situation that because of liquid leakage, liquid adding time set by a factory is not accurate is avoided, and thus the projector can work safely without errors.
Description
technical field [0001] The invention relates to the technical field of projector heat dissipation, in particular to a method and device for liquid addition and alarm time determination of a projector liquid cooling system. Background technique [0002] When the projector is working, the heat mainly comes from the imaging system inside the projector, the power supply part of the projector, and the projection bulb. The temperature will greatly reduce the working efficiency of the projector, and if it works for a long time, the service life of the projector will be greatly shortened. [0003] The working principle of the traditional projector liquid cooling refrigeration system is as follows: figure 1 As shown, when the projector is powered on, the liquid pump and liquid cooling fan are turned on immediately, so that the cooling liquid circulates in the LED water cooling head and the liquid cooling fan. Through heat transfer, the LED substrate transfers heat such as the LED l...
Claims
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IPC IPC(8): G03B21/16G01F23/292
Inventor 罗远彦伍健庭
Owner GUANGDONG VTRON TECH CO LTD