阅读说明：本技术 一种高功率半导体激光器的纳米流体双向冷却装置 (Nano-fluid bidirectional cooling device of high-power semiconductor laser ) 是由 杨亮 姜中元 于 2018-07-23 设计创作，主要内容包括：本发明公开了一种高功率半导体激光器的纳米流体双向冷却装置。纳米流体是一种新型的冷却介质,是以一定的方式和比例在液体中添加纳米级金属或非金属氧化物粒子,形成具有高导热系数、均匀稳定的新型传热冷却介质。多个LD均匀固定在纳米流体双向冷却装置上,内侧冷却通道中纳米流体沿顺时针方向进行冷却,外侧冷却通道中纳米流体沿逆时针方向进行冷却。相比于传统的风冷和水冷,采用具有高导热系数的纳米流体双向冷却装置,可以使多个LD实现均匀有效的冷却,获得高功率半导体激光的稳定输出。(The invention discloses a nanofluid bidirectional cooling device of a high-power semiconductor laser. The nanometer fluid is a novel cooling medium, and nanometer metal or nonmetal oxide particles are added into liquid in a certain mode and proportion to form a uniform and stable novel heat transfer cooling medium with high heat conductivity coefficient. The plurality of LDs are uniformly fixed on the nanofluid bidirectional cooling device, the nanofluid in the inner side cooling channel is cooled along the clockwise direction, and the nanofluid in the outer side cooling channel is cooled along the anticlockwise direction. Compared with the traditional air cooling and water cooling, the nano-fluid bidirectional cooling device with high heat conductivity coefficient is adopted, so that the multiple LDs can be uniformly and effectively cooled, and the stable output of high-power semiconductor laser is obtained.)

1. A nanofluid bidirectional cooling device of a high-power semiconductor laser is characterized by comprising a cooling device (1), N LD single tubes (2), an inlet (3) of a nanofluid inner side cooling channel, an outlet (4) of the nanofluid inner side cooling channel, an inlet (5) of a nanofluid outer side cooling channel and an outlet (6) of the nanofluid outer side cooling channel; by adopting the nano-fluid bidirectional cooling device with high heat conductivity coefficient, a plurality of LDs can be uniformly and effectively cooled, and the stable output of high-power semiconductor laser can be obtained.

2. The bi-directional nanofluid cooling apparatus for high power semiconductor laser as claimed in claim 1, wherein said nanofluid is prepared by adding nanoscale metal or non-metal oxide particles into liquid in a certain manner and ratio to form a uniform and stable novel heat transfer cooling medium with high thermal conductivity.

3. The bi-directional nanofluid cooling device for high power semiconductor laser as claimed in claim 1, wherein said cooling device (1) is made of hard aluminum, red copper or brass, preferably a heat sink material.

4. The bi-directional nanofluid cooling device for high power semiconductor laser as claimed in claim 1, wherein said N LD single tubes (2) are composed of N LD single tubes (1 or more), for example, 7 LD single tubes, with the middle single tube as the center, and the other LD single tubes are uniformly arranged at the same distance and angle. The LD single tube can be an infrared LD single tube, a visible light LD single tube or an ultraviolet LD single tube.

5. The bi-directional nanofluid cooling apparatus for high power semiconductor laser as claimed in claim 1, wherein the nanofluid flows in from the inlet (3) of the cooling channel inside the nanofluid and flows out from the outlet (4) of the cooling channel inside the nanofluid, and is cooled well in clockwise direction.

6. The bi-directional nanofluid cooling apparatus for high power semiconductor laser as claimed in claim 1, wherein the nanofluid flows in from the inlet (5) of the nanofluid outer cooling channel and flows out from the outlet (6) of the nanofluid outer cooling channel, effectively cooling in a counterclockwise direction.

Technical Field

The invention relates to a cooling device of a laser, in particular to a nanofluid bidirectional cooling device of a high-power semiconductor laser.

Background

The high-power semiconductor laser has the advantages of small volume, light weight, low cost, long service life and the like, and is widely applied to laser processing such as laser drilling, welding, cutting and the like, and the fields such as laser display, medical treatment and the like. Because the output power of a single tube of a single semiconductor Laser (LD) is relatively low, to obtain high-power laser output, the laser output can be realized only by combining a plurality of LD single tubes. The arrangement of the plurality of LDs in a small area can generate larger heat, and the service life and the long-term stable work of the whole laser light source are greatly influenced, so that the research on the heat dissipation of the plurality of LDs is very important. There are many kinds of heat dissipation methods for LD, such as air cooling heat dissipation, microchannel liquid refrigeration, etc. The air cooling heat dissipation is suitable for the condition of small heat. Although the micro-channel liquid refrigeration has a good heat dissipation effect, the micro-channel liquid refrigeration has high processing precision, great difficulty and high manufacturing cost.

Disclosure of Invention

The invention provides a nanofluid bidirectional cooling device of a high-power semiconductor laser, aiming at the problem that the stability and the service life of the high-power semiconductor laser are affected due to the fact that a plurality of LDs cannot radiate heat well at present. Compared with the traditional air cooling and water cooling, the nano-fluid bidirectional cooling device with high heat conductivity coefficient is adopted, so that the multiple LDs can be uniformly and effectively cooled, and the stable output of high-power semiconductor laser is obtained.

The invention provides a nanofluid bidirectional cooling device of a high-power semiconductor laser, which comprises a cooling device (1), N LD single tubes (2), an inlet (3) of a nanofluid inner side cooling channel, an outlet (4) of the nanofluid inner side cooling channel, an inlet (5) of the nanofluid outer side cooling channel and an outlet (6) of the nanofluid outer side cooling channel.

The nanometer fluid is formed by adding nanometer metal or nonmetal oxide particles into liquid in a certain mode and proportion to form a novel uniform and stable heat transfer cooling medium with high heat conductivity coefficient; the nano fluid with high thermal conductivity can be metal nano particles Cu and Al, but is not limited to the particles, and the non-metal nano particles can be CuO and Al₂O₃But not limited to, these particles, which are added in a manner and ratio to deionized water but not limited to such a liquid.

The cooling device (1) is made of hard aluminum, red copper or brass which is good in heat dissipation material.

The N LD single tubes (2) are composed of more than or equal to 1 LD single tube N, 7 LD single tubes are taken as an example, the middle single tube is taken as the center, and other LD single tubes are uniformly arranged at the same distance and angle. The LD single tube can be an infrared LD single tube, a visible light LD single tube or an ultraviolet LD single tube.

The nanometer fluid flows in from the inlet (3) of the nanometer fluid inner side cooling channel and flows out from the outlet (4) of the nanometer fluid inner side cooling channel, and the nanometer fluid is well cooled along the clockwise direction.

The nanometer fluid flows in from the inlet (5) of the nanometer fluid outer side cooling channel and flows out from the outlet (6) of the nanometer fluid outer side cooling channel, and the nanometer fluid is effectively cooled along the anticlockwise direction.

The nano-fluid bidirectional cooling device of the high-power semiconductor laser provided by the invention has the following main advantages and positive effects: by adopting the nano-fluid bidirectional cooling device with high heat conductivity coefficient, the problem that the LD heat dissipation is uneven due to the single flow direction of the cooling liquid when a plurality of LDs are cooled is avoided, so that the plurality of LDs are uniformly and effectively cooled, a good heat dissipation effect is realized, and the long service life and stable operation of a high-power semiconductor laser are ensured.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a side view of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a bi-directional nanofluid cooling apparatus for a high power semiconductor laser, comprising:

nano fluid is formed by adding nano metal or nonmetal oxide particles into liquid in a certain mode and proportion to form a novel uniform and stable heat transfer cooling medium with high heat conductivity coefficient; the nano fluid with high thermal conductivity can be metal nano particles Cu and Al, but is not limited to the particles, and the non-metal nano particles can be CuO and Al₂O₃But not limited to, these particles, which are added in a manner and ratio to deionized water but not limited to such a liquid.

The cooling device (1) is a device made of duralumin, copper or brass, preferably a heat-dissipating material.

the-N LD single tubes (2) are composed of more than or equal to 1 LD single tube N, 7 LD single tubes are taken as an example, the middle single tube is taken as the center, and other LD single tubes are uniformly arranged at the same distance and angle. The LD single tube can be an infrared LD single tube, a visible light LD single tube or an ultraviolet LD single tube.

-the nanofluid flows in from the inlet (3) of the cooling channel inside the nanofluid and flows out from the outlet (4) of the cooling channel inside the nanofluid, cooling well in clockwise direction.

-the nanofluid flows in from the inlet (5) of the nanofluid outer cooling channel and out from the outlet (6) of the nanofluid outer cooling channel, effectively cooling in a counter-clockwise direction.

By adopting the nano-fluid bidirectional cooling device with high heat conductivity coefficient, the problem that the LD heat dissipation is uneven due to the single flow direction of the cooling liquid when a plurality of LDs are cooled is avoided, so that the plurality of LDs are uniformly and effectively cooled, a good heat dissipation effect is realized, and the long service life and stable operation of a high-power semiconductor laser are ensured.

The above-mentioned embodiments are further described in detail for the purpose of illustrating the invention, and it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.