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Temperature controlling system adapted for a projection apparatus

a technology of temperature control system and projection apparatus, which is applied in the direction of domestic cooling apparatus, lighting and heating apparatus, machine operation mode, etc., can solve the problems of reducing the efficiency and service life of the apparatus, and unable to meet the requirements of the application. , to achieve the effect of efficiently cooling efficiently heating the system at a very low ambient temperatur

Inactive Publication Date: 2007-10-18
DELTA ELECTRONICS INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013]Yet a farther object of this invention is to provide a projection apparatus. The projection apparatus comprises the temperature controlling system as mentioned above. With the temperature controlling system, the projection apparatus radiates heat that is generated during the operation of the projection apparatus, thus, protecting the apparatus from overheating. Furthermore, the temperature controlling system assists the interior of the projection apparatus, which is located in a below-temperature environment, in warming up to the desired working temperature.

Problems solved by technology

It is understandable that, in general, the characteristics of the air cooling method are just as adverse as those of the liquid cooling method.
When the ambient temperature ascends above the upper temperature limit, the cooling capability of the projection system requires reinforcement to prevent internal components from continuously generating heat with a positive value, thereby reducing the efficiency and service life of the apparatus.
Even so, there is neither a competitive technology for raising the temperature of the system from a very low ambient temperature to a normal working temperature, nor a technology that efficiently cools the system at a very high ambient temperature and heats the system at a very low ambient temperature.

Method used

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  • Temperature controlling system adapted for a projection apparatus
  • Temperature controlling system adapted for a projection apparatus
  • Temperature controlling system adapted for a projection apparatus

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Embodiment Construction

[0023]With reference to FIG. 1, the temperature controlling system is adapted for a projection apparatus 1, which comprises at least one heat generating element 101. The temperature controlling system of the present invention is able to regulate the circumferential temperature of the heat generating element 101. As a result, the projection apparatus is able to operate under an anticipated and proper working temperature. It is understandable that the heat generating element 101 may comprise a digital micromirror device (DMD) 101(a), an optical engine 101(b), a color wheel 101(c), and / or other elements 101(d) that may generate heat.

[0024]The temperature controlling system comprises a liquid flow system 103, a heat generating device, and a heat transferring device. The liquid flow system 103 is preferably a closed system which comprises at least a pump 103(a), a reservoir 103(b), and a liquid pipe 103(c). The liquid flow system 103 is disposed along the heat generating element 101. The...

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Abstract

A temperature controlling system adapted for a projection apparatus is provided. The projection apparatus comprises at least a heat generating element, while the temperature controlling system comprises a liquid flow system, a heat generating device, and a heat transferring device. The liquid flow system is disposed along the heat generating element. The heat generating device produces heat with a positive value (endothermic) or a negative value (exothermic) in response to an environment dependent on the location of the projection apparatus. The heat transferring device transfers the heat generated by the heat generating device along the liquid flow system. The present invention maintains the operation of the projection apparatus under the desired working temperature and enables a thermal equilibrium of the projection apparatus without being influenced by the over-temperature or under-temperature of the external environment.

Description

[0001]This application benefits from the priority of Taiwan Patent Application No. 095113158 filed on Apr. 13, 2006.CROSS-REFERENCES TO RELATED APPLICATIONS[0002]Not applicableBACKGROUND OF THE INVENTION[0003]1. Field of the Invention[0004]The present invention relates to a temperature controlling system adapted for a projection apparatus. More particularly, the present invention relates to a technology for generating or radiating heat in response to different ambient temperatures to maintain the operation of a projection apparatus under the desired working temperature.[0005]2. Descriptions of the Related Art[0006]In designing most projection systems, a cooling system is important in maintaining the operation of interior elements under a certain temperature and extending service life of the interior elements, especially for large scale, heavy duty, or high heat producing projection systems. More specifically, the interior elements can be categorized into a lower temperature group an...

Claims

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Application Information

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IPC IPC(8): F25B21/02F25D23/12
CPCH04N9/3144F25B21/04
Inventor LIN, CHIA-JUICHANG, HSIU-MINGCHANG, KUO-CHINGLIN, HUI-CHIHTSAO, YU-HO
Owner DELTA ELECTRONICS INC