CN216872469U - Forced air-cooled laser cooling system - Google Patents
Forced air-cooled laser cooling system Download PDFInfo
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- CN216872469U CN216872469U CN202123006077.4U CN202123006077U CN216872469U CN 216872469 U CN216872469 U CN 216872469U CN 202123006077 U CN202123006077 U CN 202123006077U CN 216872469 U CN216872469 U CN 216872469U
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- 238000000960 laser cooling Methods 0.000 title claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 83
- 239000007788 liquid Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000004093 laser heating Methods 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 13
- 238000005057 refrigeration Methods 0.000 description 8
- 238000005086 pumping Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
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Abstract
The utility model discloses a forced air-cooled laser cooling system. The laser heating device comprises a laser heating component, wherein the laser heating component is installed in a box body, one side of the box body is provided with an air inlet, the other side of the box body is provided with an air outlet, the air inlet is connected with an air supply device, the air inlet is provided with a first cooling device, the first cooling device is positioned between the air supply device and the air inlet, and the air outlet is provided with a second cooling device. The cooling system of the utility model adopts an air cooling mode to cool the heating part of the laser, and simultaneously adopts an external cooling working medium to cool the air, thereby having larger heat exchange amount, less environmental restriction, capability of being used in a high-temperature environment, more compact structure, stronger heat exchange capability and environmental adaptability.
Description
Technical Field
The utility model relates to a forced air-cooled laser cooling system, and belongs to the technical field of laser generators.
Background
The laser is a device capable of emitting laser, is a core device for military and high-precision processing, and is also one of the major developed weaponry in various countries. The laser mainly comprises a pumping source, a laser medium and a resonant cavity. The effective heat dissipation of the pumping source is an important guarantee for the safe and stable operation of the laser. The following are the main cooling methods for the laser:
1. forced air cooling is the most widely used heat dissipation method at present, and usually, an aluminum or copper heat sink is used to increase the convection area, and then a fan is used to perform forced convection air cooling to achieve the heat dissipation effect. The design of the radiating fins and the matching of the fan determine the radiating effect of the radiating mode. The heat dissipation mode has the advantages of simple device and low cost. The forced air cooling heat transfer coefficient is approximately between 20 and 100W/(m 2℃). Under normal temperature, the heat dissipation mode has low efficiency, high noise and high power consumption, occupies larger space, has insufficient heat dissipation capability when being applied to small-sized high-power devices independently, is greatly influenced by the ambient temperature, and is difficult to provide a stable working environment for the laser. Meanwhile, the heat flux density at the pump source is large, heat needs to be quickly led out, and forced air cooling is difficult to achieve.
2. The single-phase forced water cooling mode and the liquid single-phase forced convection cooling with the conventional size are reliable cooling technologies and are widely applied to cooling of various electronic and optoelectronic devices. The heat dissipation heat flow density can reach more than 50W/cm 2 theoretically by adopting a single-phase forced water cooling heat dissipation mode, the approximate range of the heat convection coefficient is 1000-15000W/(m 2), and compared with a micro-channel single-phase forced convection cooling mode, the heat dissipation heat flow density is lower in consumed pump power and can realize relatively long-distance heat transportation. However, the conventional single-phase forced convection heat transfer coefficient is not suitable for laser cooling and cannot meet the temperature control requirement.
In summary, the disadvantages of the prior art are as follows:
1. with the power increase of electronic equipment, the single-phase flow circulation cooling is gradually difficult to meet the thermal management requirement under the working condition of high heat flux density.
2. The existing equipment adopts an immersion phase-change cooling mode on a part with the largest heat productivity of a laser, but the direct immersion cooling of the scheme can not actually achieve a very high heat exchange coefficient, and when the laser works, the instantaneous power is too high, the heat productivity is too large, film boiling can occur at the moment, and the heat conduction heat exchange coefficient is seriously reduced. Therefore, the problem of heat dissipation of the high-power laser cannot be solved by adopting the phase-change cooling mode.
3. The existing equipment adopts an immersion phase-change cooling mode on a part with the largest heat productivity of a laser, but the direct immersion cooling of the scheme can not actually achieve a very high heat exchange coefficient, and when the laser works, the instantaneous power is too high, the heat productivity is too large, film boiling can occur at the moment, and the heat conduction heat exchange coefficient is seriously reduced. Therefore, the problem of heat dissipation of the high-power laser cannot be solved by adopting the phase-change cooling mode.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a forced air-cooled laser cooling system, the temperature of air-cooled gas is very low, the heat exchange temperature difference with fins is very large, compared with the traditional forced air-cooled single-phase heat exchange temperature difference, the temperature difference is several times higher, the heat in a laser pump source can be quickly transmitted to a cooling working medium, and the cooling working medium can emit the heat to the environment.
The utility model is realized by the following technical scheme:
the utility model provides a force air-cooled laser instrument cooling system, includes the laser instrument parts that generate heat, the laser instrument parts that generate heat are installed in a box body, one side of box body is provided with the air intake, and the opposite side is provided with the air outlet, air intake connection has air supply arrangement, the air intake is provided with first cooling device, first cooling device is located between air supply arrangement and the air intake, the air outlet is provided with second cooling device.
The forced air-cooled laser cooling system is characterized in that a circulating cooling system is further arranged at the box body and comprises a compressor, the compressor is connected with a second cooling device, the second cooling device is connected with a first cooling device, and the first cooling device is connected with the compressor.
The first cooling device is an evaporator.
The second cooling device is a condenser.
The forced air-cooled laser cooling system is characterized in that an expansion valve is further arranged between the condenser and the evaporator.
The forced air-cooled laser cooling system is characterized in that a liquid storage tank is further arranged between the evaporator and the compressor.
According to the forced air-cooled laser cooling system, the heating component of the laser is a pumping source, and reinforcing ribs are arranged below the pumping source.
The utility model achieves the following beneficial effects:
the cooling system of the utility model adopts an air cooling mode to cool the heating part of the laser, and simultaneously adopts external cooling working medium to cool the air, thereby having larger heat exchange amount, less environmental restriction, more compact structure, stronger heat exchange capability and environmental adaptability, and being used in high temperature environment.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the cartridge.
In the figure: 1. the laser heating device comprises a laser heating component 2, a box body 3, an air inlet 4, an air outlet 5, an air supply device 6, a first cooling device 7, a second cooling device 8, a compressor 9, an expansion valve 10 and a liquid storage tank.
Detailed Description
The utility model is further described below. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in the figures, the forced air-cooled laser cooling system of the present invention includes a laser heating component, the laser heating component 1 is installed in a box body 2, one side of the box body 2 is provided with an air inlet 3, the other side is provided with an air outlet 4, the air inlet 3 is connected with an air supply device 5, the air inlet 3 is provided with a first cooling device 6, the first cooling device 6 is located between the air supply device 5 and the air inlet 3, and the air outlet 4 is provided with a second cooling device 7.
Air supply is carried out in to box body 2 through air supply arrangement 5, dispels the heat through forced air cooling to laser instrument heating part 1, simultaneously, sets up first cooling device 6 in air intake 3 department, and microthermal wind gets into box body 2, and the cooling effect is better.
Further, the air inlet 3 and the air outlet 4 are arranged in parallel.
Furthermore, a circulating cooling system is further arranged at the box body 2, the circulating cooling system comprises a compressor 8, the compressor 8 is connected with the second cooling device 7, the second cooling device 7 is connected with the first cooling device 6, and the first cooling device 6 is connected with the compressor 8. In particular, the first cooling device 6 is an evaporator. The second cooling device 7 is a condenser.
When the refrigerating system is used, a refrigerating working medium is generated by the compressor 8, the refrigerating working medium can be any type of refrigerant, and the refrigerating working medium circulates in the circulating cooling system, and the refrigerating working medium is specifically as follows: the refrigeration working medium generated by the compressor 8 enters the second cooling device 7, the second cooling device 7 is also provided with hot air coming out from the air outlet 4, but the temperature of the hot air is not too high (because the air entering the box body 2 is cooling air), the refrigeration working medium is cooled in the second cooling device 7 and then enters the first cooling device 6, the cooled refrigeration working medium touches normal-temperature air sent out from the air supply device 5 at the position, after the normal-temperature air is cooled by phase change, the cooling air enters the box body 2 to cool the laser heating part 1 in the box body 2, then the refrigeration working medium continuously enters the compressor 5, the refrigeration working medium in a normal state is formed, and the circulation heat dissipation is realized.
The cooling working medium is single-phase heat exchange, but the temperature of the air-cooled gas is very low, the temperature difference between the air-cooled gas and fins is very large, and compared with the traditional forced air-cooled single-phase heat exchange, the heat transfer coefficient is several times higher, so that the heat in the laser pump source can be quickly transferred to the cooling working medium, and the cooling working medium can dissipate the heat to the environment.
Further, an expansion valve 9 is provided between the condenser 7 and the evaporator 6. The cooled refrigeration working medium is decompressed into a low-temperature low-pressure working medium through an expansion valve.
Further, a liquid storage tank 10 is arranged between the evaporator 6 and the compressor 8.
Furthermore, the laser heating component 1 is a pump source, and reinforcing ribs (not shown) are arranged below the pump source, so that the heat dissipation effect is good. The reinforcing ribs can be designed into various structures according to requirements. The air-cooled gas is cooled by adopting external refrigeration working medium circulation, the heat exchange temperature difference between the gas and a heating part of the laser is increased, and meanwhile, the structure of the heat exchange fins is added at the bottom of the pumping source, so that the heat exchange coefficient is obviously improved. Therefore, the heat exchange capacity is stronger. The structure can rapidly take out heat in the laser pumping source, and then the gas can be cooled through refrigeration circulation.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a force air-cooled laser instrument cooling system, includes the laser instrument and generates heat the part, characterized by, the laser instrument generates heat the part and installs in a box body, one side of box body is provided with the air intake, and the opposite side is provided with the air outlet, air intake connection has air supply arrangement, the air intake is provided with first cooling device, first cooling device is located between air supply arrangement and the air intake, the air outlet is provided with second cooling device.
2. A forced air cooling type laser cooling system as claimed in claim 1, wherein a circulating cooling system is further provided at the box body, the circulating cooling system includes a compressor, the compressor is connected to the second cooling device, the second cooling device is connected to the first cooling device, and the first cooling device is connected to the compressor.
3. A forced air cooling laser cooling system as claimed in claim 2, wherein the first cooling means is an evaporator.
4. A forced air cooling laser cooling system as claimed in claim 3, wherein the second cooling means is a condenser.
5. A forced air cooling laser cooling system as claimed in claim 4, wherein an expansion valve is further provided between the condenser and the evaporator.
6. A forced air cooling laser cooling system as claimed in claim 4 or 5, wherein a liquid storage tank is further provided between the evaporator and the compressor.
7. The system of claim 1, wherein the heat generating component is a pump source, and a reinforcing rib is disposed below the pump source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123006077.4U CN216872469U (en) | 2021-12-02 | 2021-12-02 | Forced air-cooled laser cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123006077.4U CN216872469U (en) | 2021-12-02 | 2021-12-02 | Forced air-cooled laser cooling system |
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| Publication Number | Publication Date |
|---|---|
| CN216872469U true CN216872469U (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123006077.4U Active CN216872469U (en) | 2021-12-02 | 2021-12-02 | Forced air-cooled laser cooling system |
Country Status (1)
| Country | Link |
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| CN (1) | CN216872469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122873A (en) * | 2021-12-02 | 2022-03-01 | 上海玖热智能科技有限公司 | Forced air-cooled laser cooling system |
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2021
- 2021-12-02 CN CN202123006077.4U patent/CN216872469U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122873A (en) * | 2021-12-02 | 2022-03-01 | 上海玖热智能科技有限公司 | Forced air-cooled laser cooling system |
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