Cooling apparatus for light valve
a technology of cooling apparatus and light valve, which is applied in the direction of domestic cooling apparatus, lighting and heating apparatus, instruments, etc., can solve the problems of affecting operation efficiency, affecting space allocation, and affecting audio feeling, so as to simplify the cooling apparatus and increase the cooling efficiency
Inactive Publication Date: 2005-06-30
CORETRONIC
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Benefits of technology
[0004] One object of the present invention is to provide a cooling apparatus of a light valve, by directly pasting a heat pipe and a heat-conducting component upon a control box and taking the advantage of the large surface of the control box to diffuse the heat, and to achieve the goal of simplifying the cooling apparatus and increasing the cooling efficiency.
[0006] The heat of the light valve is conducted to the second part of the control box through the heat-conducting component, and then the heat is conducted to the second part of the control box via the heat pipe pasted upon it. Thus, the heat of the light valve can be removed away through the large area of the second part of control box, so as to increase the cooling efficiency and simplify the cooling apparatus.
Problems solved by technology
However, since the light beam is unceasingly projected on the light valve, it accumulates heat on the light valve that affects operation efficiency thereof.
However, the noise caused by the operation of the fan 5 is easily spread out from the vent of the projection apparatus, which affects the audio feeling.
In addition, it has certain volume, which affects the space allocation and increases the volume of the cooling apparatus.
Therefore, there are conventional problems of noise, short lifetime and large volume for the cooling apparatus by using a fan and more improvements are needed.
Method used
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[0013] Further features and advantages of the present invention, as well as the structure and operation of the embodiments of the present invention, are described in detail below with reference to the accompanying drawings.
[0014] Please refer to FIG. 3 and FIG. 4, the cooling apparatus 10 of a light valve according to the present invention includes a control box 11 and a heat-conducting component 12. The control box 11 is connected to the back of the light valve 1 in order to actuate the light valve 1. The control box 11 is composed of a first part 111 and a second part 112 of the control box. The control box 11 is made up of materials with high heat conductivity like aluminum, copper and so on. The first part 111 of the control box is opened with an opening 1111, and the opening 1111 is setup in accordance with the light valve 1 and the boundaries of the opening 1111 are locked firmly to the light valve 1 in order to fix the first part 111 of the control box 11 to the projector 6....
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A cooling apparatus for a light valve of the present invention includes a control box disposed on the back of the light valve to actuate the light valve, followed by a heat pipe and a heat-conducting component pasted upon the inner surface of the control box. The heat-conducting component is connected to a heat-collecting end of the heat pipe and one of its surface contacts with the light valve. The heat of the light valve is conducted to the second part of the control box through the heat-conducting component, and then the heat is conducted to the second part of the control box via the heat pipe pasted upon it. Thus, the heat of the light valve can be removed through the large area of the second part of control box, so as to increase the cooling efficiency and simplify the cooling apparatus.
Description
FIELD OF THE INVENTION [0001] The present invention relates to a cooling apparatus, and more particularly, to a cooling apparatus for a light valve. BACKGROUND OF THE INVENTION [0002] In a projection apparatus, a lighting system projects a light beam on a light valve. After a light modulation process by the light valve, an image is projected on a screen through a projection lens. However, since the light beam is unceasingly projected on the light valve, it accumulates heat on the light valve that affects operation efficiency thereof. Therefore, a suitable cooling apparatus for the light valve is needed. [0003] Please refer to FIG. 1 and FIG. 2, there is a control box 2 connected to the back of a light valve 1. Inside the control box 2 is equipped with an electrical circuit board 3 to actuate the light valve 1. By the installment of the control box, the goal of preventing the production of electromagnetic wave interference can be achieved. There is an opening 4 disposed on the contro...
Claims
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Login to View More IPC IPC(8): G02F1/133
CPCH04N9/3144G02F1/133385
Inventor HUANG, KUO-CHINCHOU, BOR-BINCHEN, CHUN-YAO
Owner CORETRONIC