CN202403244U - Water cooling device of large LED (Light-Emitting Diode) lamp system - Google Patents

Abstract

The utility model provides a water cooling device of a large LED (Light-Emitting Diode) lamp system. The device comprises a water pump, a water tank, a water cooling unit, a hot water cooling device and a water pipe for connecting the components, wherein the water pump is connected with the water cooling unit through the water pipe; the water cooling unit is connected with the hot water cooling device through a water outlet pipe; and the hot water cooling device is connected with the water tank. The water cooling device has the advantages that the solutions to the heat dissipation problem of a plurality of large-power LED lamp systems are integrated, and a new idea is provided for the application method of an LED lighting system; a heat dissipation pipe, a heat dissipation fin, a fan and the like used for separately cooling a single LED lamp are omitted; and a simple and easy clamping trough combining mode is adopted to achieve a plug-and-play effect for LED light source modules, and the practicality and the interchangeability are strong.

Description

Water cooling device for large LED lighting system

technical field

The utility model relates to a cooling device, in particular to a water cooling device for a large-scale LED lamp system.

Background technique

As an excellent semiconductor optoelectronic device, LED (Light Emitting Diode) is expected to become a new generation of ideal solid-state energy-saving lighting sources in the future due to its small size, low power consumption, long service life, and environmental protection. With the development of LED lighting products to high light intensity and high power, because the current LED luminous efficiency is only about 20-30%, most of the electric energy is still converted into heat energy, and the heat dissipation problem of high-power LED lamps is still very serious. If the generated heat cannot be dissipated in time, various thermal effects caused by temperature rise will affect the light output characteristics of the LED and the life of the device. Therefore, selecting and designing a heat dissipation technology method suitable for heat dissipation of LED lamps will have very important practical significance for the application of LED lighting products.

At present, most heat dissipation technologies are mainly considered for a single LED lamp, such as the water-cooled LED bulb "Eternaleds HydraLux-4" launched by Eternaleds in the United States; Taiwan Jinyunnian Company mainly promoted a 50-watt LED water-cooled lamp at the Taiwan International Lighting Exhibition in 2011. Standing lamp and a 16-watt LCP-16WLED water-cooled pendant lamp. However, there is currently no relevant technology that considers the heat dissipation of the system from the perspective of the entire LED lighting system, especially an integrated heat dissipation solution for a large lighting system composed of multiple high-power LED lighting systems.

Utility model content

The purpose of the utility model is to provide a water cooling device for a large-scale LED lighting system in order to overcome the deficiencies of the prior art. The cooling device is especially suitable for heat dissipation of a lamp system composed of high-power LED lamps.

The technical scheme that realizes the utility model purpose is:

A water cooling device for a large-scale LED lighting system, which is composed of a water pump, a water tank, a water cooling unit, a hot water cooling device and water pipes connecting them. The water cooling device is connected with the water tank.

The cooling unit is a cavity, the bottom of the cavity is provided with a card slot for fitting with the LED lamp, the edge of the cavity is provided with a water inlet and a water outlet, the water outlet is higher than the water inlet, and the cavity is provided with a The cooling fins hanging from the bottom are not in contact with other sides of the cavity, and the cooling fins are arranged along the direction of water flow.

The water cooling unit and the heat sink are made of thermally conductive metal materials.

The method for cooling LED lamps and lanterns of the utility model cooling device is:

(1) Connect large-scale LED lamps in series or parallel or series-parallel to form a large-scale LED lamp system with water-cooled unit group as the carrier;

(2) Use thermal paste to assemble each LED lamp with a water cooling unit;

(3) The cavities of each water cooling unit are connected by pipes, and the pipes are connected with the water tank and the hot water cooling device;

(4) Start the water pump, pump the cold water from the sink into the water-cooling unit through the pipeline, perform heat exchange in the water-cooling unit, take away the heat generated by the LED lamps, enter the hot water cooling device to cool, and then enter the water tank for recycling.

The utility model has the advantages of: integrating the solutions to the heat dissipation problem of multiple high-power LED lighting systems, providing a new idea for the application method of the LED lighting system; Fans, etc.; the combination of thermal paste and simple card slots is used to realize the ready-to-install and use of LED light source modules, with strong practicability and interchangeability.

Description of drawings

Fig. 1 is a structural schematic diagram of a large-scale LED lighting system water cooling device connected in series;

Fig. 2 is the structural representation of the utility model water-cooling unit;

Fig. 3 is a structural schematic diagram of a heat sink of a water cooling unit;

FIG. 4 is a structural schematic diagram of a water cooling unit group of a parallel large-scale LED lighting system water cooling device;

Fig. 5 is a schematic structural diagram of a water cooling unit group of a large-scale LED lighting system water cooling device connected in series and parallel;

Figure 6 is a comparison diagram of the heat dissipation effect of the water-cooling unit with and without heat sinks when the LED light source modules are of different powers;

Figure 7 is a comparison of heat dissipation effects using water cooling and air cooling under the same water cooling unit;

Figure 8 is a characterization diagram of the size of the heat sink on the heat dissipation effect;

Figure 9: Measurement diagram of substrate temperature of 80W LED light source module.

In the figure: 1. Water pump and water tank 2. Water inlet pipe 3. Water cooling unit 4. Water outlet pipe 5. Hot water cooling device 6. LED lamp 7. Water inlet 8. Water cooling unit inner cavity 9. Water outlet 10. Heat sink 11 . Card slot 12. Thermal paste 13. Water cooling unit group.

Detailed ways

The utility model is a water cooling device for a large LED lighting system, which is composed of a water pump, a water tank 1, a water cooling unit 3, a hot water cooling device 5 and water pipes connecting them. The water pump 1 is connected to the water cooling unit 3 through the water pipe, and the water cooling unit 3 is connected by The water pipe is connected with the hot water cooling device 5, and the hot water cooling device 5 is connected with the water tank 1.

Referring to Figure 2 and Figure 3, the water cooling unit 3 is a cavity, the bottom of the cavity is provided with a card slot for fitting with the LED lamp 6, the edge of the cavity is provided with a water inlet 7 and a water outlet 9, and the water cooling unit 3 has a water inlet 7 It is lower than the water outlet 9 to ensure that the water flow can fully exchange heat with the heat sink 10; through the combination of the card slot 11, the bottom of the water cooling unit 3 and the LED lamp 6 use the heat conduction paste 12 to realize easy assembly. The cooling fins 10 of the inner chamber 8 of the water cooling unit hang out from the bottom of the water cooling unit 3 , do not contact with other inner surfaces of the water cooling unit 3 , and follow the direction of water flow to ensure smooth water flow through the water cooling unit 3 .

The water cooling unit 3 and the heat sink 10 are made of thermally conductive metal materials.

Example 1: Water Cooling Device for Series LED Lamps

Referring to Figure 1, the water pump and water tank 1 are connected to the water cooling unit 3 through the water inlet pipe 2, the water cooling unit 3 is assembled with the LED lamp 6, and a plurality of water cooling units 3 form a series water cooling unit group 13, and the water cooling units are connected through the water inlet pipe 2 Connection; the water coming out from the water cooling unit group 13 is connected to the hot water cooling device 5 through the water outlet pipe 4, and the water coming out from the hot water cooling device 5 returns to the water tank 1 to realize the recycling of water.

Example 2: Water Cooling Device for Parallel LED Lamps

Referring to FIG. 4 , after the water cooling unit 3 and the LED lamp 6 are assembled, a parallel water cooling unit group 13 can be formed in parallel.

Example 3: Water-cooling device for series-parallel LED lamps

Referring to FIG. 5 , after the water-cooling unit 3 and the LED lamp 6 are assembled, a series-parallel water-cooling unit group 13 can be formed by combining series and parallel.

The performance test of the water-cooling device for LED lamps is carried out, and the results are as follows:

Referring to Figure 6, under the same conditions, for LED light source modules with different powers, comparing the cases with and without heat sinks inside the water cooling unit, the cooling effect with heat sinks is obviously superior to that without heat sinks. As the power of the LED light source module increases, the growth rate of the maximum temperature of the LED light source module using a heat sink is much smaller than that without a heat sink; when the power increases from 36W to 108W, the water cooling unit with a heat sink, The maximum temperature of the LED light source module is only increased by 15 degrees, and the control effect is obvious.

Referring to Figure 7, under the same conditions, for LED light source modules with different powers, comparing the cooling methods of using water cooling and using air natural cooling, the effect of using water cooling is obviously superior to that of using air natural cooling. As the power of the LED light source module increases, the growth rate of the maximum temperature of the LED light source module using water cooling is much smaller than that of the natural cooling of the air; when the power increases from 36W to 108W, the LED light source module using water cooling The maximum temperature of the group only increased by about 14 degrees, and the control effect was obvious.

Referring to Figure 8, the analysis of the height of water-cooling units of different heights on the heat dissipation effect shows that changing the size of the water-cooling unit has little effect on the heat dissipation effect; for LED light source modules with different powers, the LED light sources with different heights of water-cooling units of 95cm and 65cm are different The maximum temperature of the module is only 2-4 degrees, implying that there is a large room for optimization in the miniaturization of the water cooling unit. the

Referring to Fig. 9, using the device and method of the present invention, and measuring the substrate temperature of the 80W LED light source module shows that under certain external conditions, the substrate temperature of the LED light source module reaches a controllable equilibrium temperature, and the control effect is obvious. When the room temperature is 13 degrees, the equilibrium temperature of the substrate only rises to about 46 degrees, and the heat dissipation effect is excellent.

Claims (3)

1. the water cooling plant of a large LED lamp system; It is characterized in that: this device is made up of water pump and tank, water-cooled unit, hot water cooling device and the water pipe that connects them; Water pump is connected with the water-cooled unit through water pipe; The water-cooled unit is connected with hot water cooling device by outlet pipe, and hot water cooling device is connected with tank.

2. water cooling plant according to claim 1; It is characterized in that: described water-cooled unit is a cavity; Cavity bottom is provided with the draw-in groove equipped with the LED light fixture, and cavity edge is provided with water inlet and delivery port, and delivery port is higher than water inlet; Be provided with in the cavity from cavity bottom and hang the fin that, fin does not contact with other sides of cavity.

3. water cooling plant according to claim 1 is characterized in that: described water-cooled unit and fin are processed by thermal conductive metallic material.

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