CN204300837U - Based on the high power LED projector of aluminum water-cooling heat exchange function - Google Patents

Abstract

The utility model discloses a high-power LED projection lamp based on aluminum water-cooling heat exchange function, which includes an LED light source and a water-cooling heat exchange device. The water-cooling heat exchange device includes a water pump, an aluminum water-cooling row and a water storage tank. The heat emitted by the LED light source is conducted to the aluminum water-cooled row, and the heat is taken away by the water flowing through the aluminum water-cooled row, and the hot water flowing out of the aluminum water-cooled row flows into the water storage tank for storage. In this way, the heat energy dissipated by the high-power LED can be obtained More sufficient and reasonable secondary heat utilization can greatly improve the energy-saving and emission-reduction effects of LEDs. At the same time, there is no need to install aluminum heat-dissipating shells, which can save a lot of aluminum materials.

Description

High-power LED floodlight based on aluminum water-cooled heat exchange function

technical field

The utility model relates to an LED lamp, in particular to a high-power LED projection lamp based on the aluminum-made water-cooling heat exchange function.

Background technique

LED is a new type of green light source. Its energy-saving effect is better than traditional light sources such as incandescent lamps and fluorescent lamps. However, part of the energy is lost in the form of heat during work, which is a waste of electric energy; The aluminum shell, which increases the manufacturing cost.

At present, the common heat dissipation method of high-power LED is heat dissipation fin heat dissipation method. This heat dissipation method uses the principle of natural convection heat dissipation of air. Without the action of external driving force, the air still has convection motion and can take away the heat of heat dissipation fins, but , this method has the disadvantages of small heat dissipation and low heat transfer coefficient (heat transfer coefficient 3.5 to 6.0W/(m ⁰ C)). As the power of high-power LEDs increases, this heat dissipation method is gradually unsuitable for high-power LEDs. In addition to the reduced heat dissipation effect, the cost of high-power LEDs also increases due to the increase in the volume of heat dissipation fins.

Utility model content

In order to solve the above technical problems, the utility model provides a high-power LED floodlight based on aluminum water-cooling heat exchange function, which uses water cooling to dissipate heat from the LED light source, has a good heat dissipation effect, and has a practical and reliable structure.

In order to achieve the above object, the technical solution adopted in the utility model is:

The high-power LED floodlight based on the aluminum water-cooling heat exchange function includes an LED light source and a water-cooling heat exchange device. The water-cooling heat exchange device includes a water pump, an aluminum water-cooling row and a water storage tank. The water pipe supplies water to the aluminum water-cooled row, and the water outlet of the aluminum water-cooled row is connected to the water storage tank through the water outlet pipe. The LED light source conducts heat through the heat spreader and the aluminum water-cooled row, and is located There is a heat conduction layer between them.

Preferably, the water inlet pipe and the water outlet pipe are high temperature resistant silicone pipes.

Preferably, the heat-conducting layer is a heat-conducting silica gel layer or a heat-conducting graphite sheet.

Preferably, the heat conductor is an aluminum bracket.

Preferably, the water storage tank is an insulated water storage tank.

The beneficial effects of the utility model: by conducting the heat from the high-power LED light source to the aluminum water cooling row, the heat is taken away by the water flowing through the aluminum water cooling row, and the hot water flowing out of the aluminum water cooling row flows into the water storage tank for storage , In this way, the heat energy of high-power LED heat dissipation can be used more fully and reasonably for secondary heat, which greatly improves the energy-saving and emission-reduction effect of LED.

Description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.

Fig. 1 is a schematic diagram of the working principle of the utility model.

Detailed ways

Referring to Fig. 1, the high-power LED floodlight based on the aluminum water-cooling heat exchange function of the present invention includes an LED light source 1 and a water-cooling heat-exchanging device, and the water-cooling heat-exchanging device includes a water pump 2, an aluminum water-cooling row 3 and a storage Water tank 4, the water pump 2 is connected to the water supply pipe and supplies water to the aluminum water cooling row 3 through the water inlet pipe 6, the water outlet of the aluminum water cooling row 3 is connected to the water storage tank 4 through the water outlet pipe 7, and the LED light source 1 passes through the heat conductor 5 is attached to the aluminum water-cooled row 3 for heat conduction, and a heat-conducting layer is arranged between the heat spreader 5 and the aluminum water-cooled row 3. The water storage tank 4 is an insulated water storage tank, and the water heated by heat is stored in the insulated storage tank. Insulation is carried out in the water tank 4, for secondary use.

In engineering applications, the general radiator is made of copper or aluminum. Copper has a high thermal conductivity (401 W/(m ⁰ C)), but the cost is high, and the thermal conductivity of aluminum is 237 W/(m ^{0 C} ). C), the cost is relatively low, comprehensively considered, the utility model uses aluminum as the heat conducting material.

Preferably, the water inlet pipe 6 and the water outlet pipe 7 are high-temperature-resistant silicone tubes, which have good high-temperature resistance, are not easy to age, are durable, and can increase the service life of the water-cooling heat exchange device.

The main problem considered by the utility model is the heat conduction efficiency. The heat conduction efficiency of the aluminum cooling water row and the aluminum bracket is 237 W/(m ⁰ C), which meets the basic requirements for heat dissipation, and the heat conduction coefficient of the air is 0.03 W/ (m ⁰ C), there will be a small air gap on the contact surface between the aluminum cooling radiator and the aluminum bracket, which is not conducive to heat conduction. Therefore, the thermally conductive silicone grease layer is used to fill the tiny air gap on the contact surface between the aluminum cooling water row and the aluminum bracket. The thermal conductivity of the thermally conductive silicone grease is greater than 2.0 W/(m ⁰ C), which greatly improves the thermal conductivity; In the embodiment, graphite sheets can also be used instead of thermally conductive silicone grease, the thermal conductivity of which is greater than 10.0 W/(m ⁰ C), and the improvement of thermal conductivity is more obvious.

When the high-power LED floodlight is energized and working, the heat from the LED light source 1 is conducted to the aluminum water-cooled row 3 through the aluminum bracket, and the heat is taken away by the water flowing through the aluminum water-cooled row 3. The hot water that flows out flows into the water storage tank 4 and is stored, and the high-power LED floodlight can work normally by using the water-cooling heat dissipation method, and its heat dissipation effect is better than that of traditional aluminum fin heat dissipation. However, the water cooling method can increase the water temperature and meet the requirements of secondary utilization in a relatively short period of time. In this way, the heat energy of high-power LED heat dissipation can be used more fully and reasonably for secondary heat utilization, which greatly improves the energy saving and emission reduction of LEDs. As a result, at the same time, there is no need to install an aluminum heat dissipation shell, thereby saving a lot of aluminum.

The above is only a preferred embodiment of the utility model, and the utility model is not limited to the shape and structure mentioned in the above embodiment, as long as it achieves the technical effect of the utility model by the same means, it should belong to Protection scope of the present utility model.

Claims (5)

1. based on the high power LED projector of aluminum water-cooling heat exchange function, comprise LED light source and water-cooled heat-exchanger rig, it is characterized in that: described water-cooled heat-exchanger rig comprises water pump, aluminum water-cooling row and storage tank, described water pump connects feed pipe and is that aluminum water-cooling row supplies water by water inlet pipe, the delivery port of described aluminum water-cooling row connects storage tank by outlet pipe, described LED light source is arranged laminating by heat transfer device and aluminum water-cooling and is carried out heat conduction, and is provided with heat-conducting layer between heat transfer device and aluminum water-cooling are arranged.

2. the high power LED projector based on aluminum water-cooling heat exchange function according to claim 1, is characterized in that: described water inlet pipe and outlet pipe are high temperature resistant silicon sebific duct.

3. the high power LED projector based on aluminum water-cooling heat exchange function according to claim 1, is characterized in that: described heat-conducting layer is thermal conductive silicon glue-line or conductive graphite sheet.

4. the high power LED projector based on aluminum water-cooling heat exchange function according to claim 1 or 3, is characterized in that: described heat transfer device is aluminium matter support.

5. the high power LED projector based on aluminum water-cooling heat exchange function according to claim 1, is characterized in that: described storage tank is heat preservation storage water tank.