Liquid cooling device

US20110155353A1Inactive Publication Date: 2011-06-30MAN ZAI IND
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Patent Information

Authority / Receiving Office
US Β· United States
Current Assignee / Owner
MAN ZAI IND
Publication Date
2011-06-30
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A liquid cooling device is mounted in a large-sized overhead projector to absorb heat generated by a light-generating device. The liquid cooling device has a water tank, a heat sink, a liquid block assembly and a pump. The water tank has an outlet hole formed on the middle of the water. The heat sink communicates with the water tank. The liquid block assembly contacts the light-generating device and is filled with a coolant and communicates with the heat sink via an inlet duct. The pump is mounted in the large-sized overhead projector and is in fluid communications with the water tank via an outlet duct mounted in the outlet hole of the water tank. Therefore, when the large-sized overhead projector is put upright or turned upside down, the outlet hole is always in the middle of the water tank, preventing the pump from idling and being damaged as the amount of coolant is reduced.
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Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The invention relates to a liquid cooling device, and more particularly to a liquid cooling device used to cool a light-generating device mounted within a large-sized overhead projector.

[0003] 2. Description of Related Art

[0004] A large-sized overhead projector comprises a light-generating device. The light-generating device often has a high temperature while working in high performance mode. To effectively reduce the temperature, a modern approach is to install a liquid cooling device on the light-generating device. The liquid cooling device absorbs and dissipates heat generated by the light-generating device.

[0005] With reference to FIG. 2, a conventional liquid cooling device comprises a water tank 90, a heat sink 91, a pump 94 and a liquid block assembly 96. The water tank 90 has a chamber, a top, a bottom and an outlet hole 911. The outlet hole 911 is near the bottom of the water tank 90, and communicates with the cha...

Claims

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