Cleaning module suitable for projection device

A projection device and cleaning technology, which are applied in the directions of cleaning methods, projection devices, cleaning methods and utensils using gas flow, can solve problems such as increased airflow, increased noise, heat dissipation effects, etc., to avoid dust pollution, prolong service life, The effect of optimal cooling performance

Inactive Publication Date: 2014-09-10
DELTA ELECTRONICS INC
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Problems solved by technology

However, although the setting of the filter screen can prevent dust from entering the machine, since the filter screen will increase the resistance of the airflow, it will reduce the heat dissipation capacity in the system, and it will also affect the heat dissipation of other components that are less sensitive to dust, and if To reduce the temperature of the body, the system fan speed needs to be increased, which will also increase the noise

Method used

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  • Cleaning module suitable for projection device
  • Cleaning module suitable for projection device
  • Cleaning module suitable for projection device

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Embodiment Construction

[0048] Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the description in the following paragraphs. It should be understood that the present invention can have various changes in different aspects, all of which do not depart from the scope of the present invention, and the description and illustrations therein are used as illustrations in nature, not to limit the present invention .

[0049] see image 3 , which is a schematic diagram of the structure of a projection device in a preferred embodiment of the present invention, wherein the projection device of the present invention takes a digital light processing projection device (DLP) as an example. Such as image 3 As shown, the projection device 30 includes at least a casing 31 and a power supply and lighting module 32, a light source module 33, an optical element 34, a sensing element 35, a light engine 36, and a projection lens disposed in the casing ...

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Abstract

The invention provides a cleaning module which is used for cleaning an optical element or a sensing element arranged in a projection device. The cleaning module comprises a casing, a flow guide device and a nozzle; the flow guide device is arranged in the casing; the nozzle is connected with the casing and communicated with an air outlet of the flow guide device; one opening of the nozzle is towards the optical element or the sensing element of the projection device to enable the air flow guided through the flow guide device to blow to the optical element or the sensing element directly so as to clean dust stained on the optical element or the sensing element; the flow guide device starts to work when a system fan of the projection device does not move.

Description

technical field [0001] The invention relates to a cleaning module, in particular to a cleaning module suitable for projection devices. Background technique [0002] In recent years, various projection devices, such as projectors, have been widely used in families, schools or various business occasions to enlarge and display an image signal provided by an image signal source on a screen. . Since the projector generates a lot of heat during operation, a heat dissipation mechanism is installed in the projector to dissipate the heat in time to prevent the projector from being overheated and affecting normal operation, being damaged, or reducing its service life. [0003] However, in the fan cooling system, the cooling airflow guided by the fan will also bring dust in the air into the projector. If the dust adheres to the optical components in the projector, it may affect the performance of the optical components and cause The machine is abnormal. In order to avoid the problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B5/02G03B21/54
CPCB08B5/02G03B21/54
Inventor 张修铭
Owner DELTA ELECTRONICS INC
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