Patent Application
20170030567
1. Fields of the Invention
The present invention relates to a Light Emitting Diodes light, and more particularly, to a liquid-cool Light Emitting Diodes light.
2. Descriptions of Related Art
The conventional lighting device generally comprises multiple lights which provide sufficient illumination. However, these lights consume significant electric power and generate heat of high temperature which has to be removed efficiently so as to protect the lights. In other words, multiple heat dissipation devices are required to be cooperated with the multiple lights. The lights together with their bases or casings, and the heat dissipation devices occupy space.
Light Emitting Diodes (LEDs) are developed to improve the shortcomings mentioned above, the LEDs are compact and provide sufficient brightness. Nevertheless, the heat removal of the LEDs is the main concern when using LEDs because usually hundreds LEDs are used. Although the conventional way to remove the heat can be made by using heat dissipation fins, the heat dissipation fins cannot attached to the LEDs when the LEDs are used on a large display screen.
The present invention intends to provide a liquid-cool LEDs light which eliminates the shortcomings mentioned above.
The present invention relates to a liquid-cool Light Emitting Diodes light and comprises a light source having multiple Light Emitting Diode units (LED units). The light source has a first face and a second face. A cooling unit has a first cooling member which is connected to the first face, and a second cooling member which is connected to the second face. A cooling system has a cooling device, a first path and a second path. The first path of the cooling device is connected to two respective first ends of the first and second cooling members, and the second path of the cooling device is connected to two respective second ends of the first and second cooling members.
Preferably, the first cooling member is a transparent member.
Preferably, a fluorescent layer is located between the LED units and the first face.
Preferably, the first cooling member has fluorescent powder received therein. A filter is connected between the first cooling member and the first path, and another is connected between the second cooling member and the second path.
Preferably, the cooling system is a water-cooling system. The cooling device has a heat dissipation unit, a storage unit and a pump unit. The heat dissipation unit has a heat dissipation member and a fan. The storage unit is connected between the heat dissipation unit and the pump unit. The heat dissipation unit is connected with the second path. The heat dissipation unit is located between the storage unit and the second path. The pump unit is connected between the storage unit and the first path.
Preferably, the first cooling member is connected to a light softening device which is located opposite to the LED units.
Preferably, the light softening device is connected with a second optic units (including lens and reflector) which is located opposite to the first cooling member.
Alternatively, the present invention provides another liquid-cool Light Emitting Diodes light which comprises a light source having multiple LED units. A cooling unit has a room in which the light source is received. A cooling system has a cooling device, a first path and a second path. The first path of the cooling device is connected to a first end of the cooling unit, and the second path of the cooling device is connected to a second end of the cooling unit.
Preferably, the cooling system is a water-cooling system. The first cooling member is a transparent member. A fluorescent layer is connected to the cooling unit and located opposite to the light source.
Preferably, the cooling device receives non-conductive cooling liquid therein. A transparent single-crystal alumina layer is located between the fluorescent layer and the cooling unit.
The primary object of the present invention is to provide a liquid-cool Light Emitting Diodes light with high efficiency for removal of heat generated from the Light Emitting Diodes, while the liquid-cool Light Emitting Diodes light occupies less space and small emitting area.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
Referring to
Heat generated from the LED units 11 is transferred to the cooling device 2 by cooling liquid circulates in the cooling system 3 and the cooling device 2. The heat is then removed from the cooling device 2 to the cooling system 3, and released to the outside air. Specifically, the heat generated from the LED units 11 is transferred to the first and second cooling members 22, 23 via the first and second faces 12, 13, and the cooling liquid absorbs the heat from the first and second cooling members 22, 23 to the cooling system 3 which releases the heat to the outside air.
The first face 12 is a light emitting face and the first cooling member 22 is a transparent member, such as glass so that the light generated from the LED units 11 passes through the first cooling member 22.
A fluorescent layer 14 is located between the LED units 11 and the first face 12 so as to increase the illumination feature of the light from the LED units 11. For example, when using yellow fluorescent layer 14, the light becomes while light when mixed with the light from the blue LED units 11.
The cooling system 3 is a water-cooling system. The cooling device 31 has a heat dissipation unit 311, a storage unit 312 and a pump unit 313. The heat dissipation unit 311 has a heat dissipation member 3111 and a fan 3112. The storage unit 312 is connected between the heat dissipation unit 311 and the pump unit 313. The heat dissipation unit 311 is connected with the second path 33. The heat dissipation unit 311 is located between the storage unit 312 and the second path 33. The pump unit 313 is connected between the storage unit 312 and the first path 32. The cooling system 3 uses the storage unit 312 to store the cooling liquid. When the cooling system is in action, the pump unit 313 pumps the cooling liquid in the storage unit 312 to circulate between the cooling system 3 and the cooling device 2. Specifically, the cooling liquid passes through the first path 32 and enters into the first and second cooling members 22, 23 to absorb the heat from the first and second cooling members 22, 23. The cooling liquid then flows through the second path 33, the heat dissipation unit 311, the heat is then transferred to the heat dissipation member 3111 and released to the outside air.
The first cooling member 22 is connected to a light softening device 15 which is located opposite to the LED units 11. The light softening device 15 eliminates the wrinkles generated by water. The light softening device 15 is connected with a second optic units (including lens and reflector) 16 which is located opposite to the first cooling member 22 so as to send the light to a farer distance.
As shown in
In this embodiment, the cooling system 3 is a water-cooling system, and the first cooling member 22 is a transparent member. A fluorescent layer 14a is connected to the cooling unit 2a and located opposite to the light source 1a. The cooling device 31 receives non-conductive cooling liquid therein. A transparent single-crystal alumina layer 17 is located between the fluorescent layer 14a and the cooling unit 2a. When the light source 1a is activated, the light passes through the cooling liquid and the cooling unit 2a, and the transparent single-crystal alumina layer 17 softens the light which changes its color by the fluorescent layer 14a. The light source 1a is received in the room 21 of the cooling unit 2a and soaked in the cooling liquid when the cooling system 2 is in operation. The cooling liquid is non-conductive cooling liquid so as to avoid from circuit short and the light source 1a operates normally. The heat from the light source 1a is effectively removed.
While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention. cm What is claimed is:
