| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling device for LED lighting which can perform cooling with high efficiency, with small power consumption, and without using cooling water, and in which dew condensation does not occur.SOLUTION: A cooling device for LED lighting includes: a heat absorbing member 11 which has a refrigerant chamber 21 and in which the heat of an LED 3 is transmitted; and a condenser 14 which cools a refrigerant 23 by the atmosphere in a heat exchange part 35 in which the refrigerant 23 passes. The cooling device includes: a first pipe member 12 for a refrigerant which connects a refrigerant outlet 31 of the heat exchange part 35 to a refrigerant inlet 22 of the refrigerant chamber 21; and a second pipe member 13 for a refrigerant which connects a refrigerant inlet 32 of the heat exchange part 35 to a refrigerant outlet 28 of the refrigerant chamber 21. The cooling device includes the refrigerant 23 which is sealed in a refrigerant passage 36 leading to the heat exchange part 35 from the refrigerant chamber 21 via the first and second pipe members 12, 13 for the refrigerant. The refrigerant 23 vaporizes by being heated by the heat of the LED 3 in the refrigerant chamber 21, and liquefies by being cooled by the atmosphere in the heat exchange part 35. The refrigerant outlet 28 of the refrigerant chamber 21 is provided above the refrigerant inlet 22, and the condenser 14 is provided above the heat absorbing member 11.SELECTED DRAWING: Figure 1 |
