CN1624991A - Phase-change energy-storage laser head cooler - Google Patents
Phase-change energy-storage laser head cooler Download PDFInfo
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- CN1624991A CN1624991A CN 200410061404 CN200410061404A CN1624991A CN 1624991 A CN1624991 A CN 1624991A CN 200410061404 CN200410061404 CN 200410061404 CN 200410061404 A CN200410061404 A CN 200410061404A CN 1624991 A CN1624991 A CN 1624991A
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Abstract
This invention discloses a cooler of transformation storage laser head. Its structure is: A hole is on the wall of the box, set board-shaped semiconductor cooler on the aperture, its cold plate connects to the box wall, the jointing place is sealed, the cold end heat sink is in the box, the thermoelectric pile, the hot plate and the hot end radiator are outside of the box, open the water inlet and outlet on the side wall of the box wall, arrange the water pipe in the box, and one end of the pipe connects to the water inlet, and the other end to the outlet, the water outlet is jointed with the pump, the box is filled with the conducing liquid, the pipe is set in the liquid, fill the transformation matter in the pipe that contacts the conducting liquid. This advantages are cooling the laser with high outlet power, small volume.
Description
Technical field
The present invention relates to a kind of laser, particularly relate to a kind of cooling system that is interrupted the solid state laser of work.
Background technology
In solid state laser when work,, no matter its working method is continuous or pulse, the energy of input pumping lamp has only considerably less part (being about a few percent) to be converted into laser output, and all the other Conversion of energy are thermal losses.These heats can make the working-laser material temperature raise, and temperature distributing disproportionation is even in the rod, and this will directly influence the optical property of working-laser material, thereby laser beam quality is descended, and the Laser Devices lost of life also the laser cancellation can occur when serious.Therefore, all to adopt cooling provision usually during the solid state laser operation, working-laser material, pumping lamp and laser pump cavity are cooled off, normally move to guarantee laser safety.
Traditional cooling means has liquid cools, gas cooled and conduction cooling.Generally all adopt liquid cools than great-power solid laser.Because water and other cooling fluid are compared, not only thermal capacity is big, viscosity is low, and chemical property is stable under the intensive ultraviolet radiation, can not resolve into other materials, and working-laser material, laser pump cavity and pumping lamp are polluted, therefore, solid state laser selects for use water as cooling fluid usually, and the traditional water cooling system comprises water pump, water storage box, water pipe.This water-cooling system will have bigger water storage box, and necessarily required circulating water pump and water pipe can make whole laser volume and weight all huger, therefore is not suitable for using under small sized applications.
At present, solve solid state laser cooling system miniaturization issues, utilization is a cooling technique of semiconductor morely.But because the freezing capacity of semiconductor cooler is lower, cooling power is smaller, therefore can only be as the refrigerator of low-power laser.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art part, propose a kind of phase-change accumulation energy laser head cooler.This laser head cooler not only can cool off the higher output power laser, and volume is less.
For achieving the above object, the technical solution used in the present invention is, a kind of phase-change accumulation energy laser head cooler, on the tank wall of casing, have the hole, tabular semiconductor cooler is housed on the hole, and its cold drawing is connected with tank wall, the junction sealing, the cold junction heat dump is positioned at casing, thermoelectric pile, hot plate and hot-side heat dissipation device are positioned at outside the casing, have water inlet and delivery port on the sidewall of tank wall, and water pipe is housed in casing, one end of water pipe communicates with water inlet, the other end communicates with delivery port, and delivery port and water pump join, and fills heat-conducting liquid in casing, water pipe places heat-conducting liquid, with the tube wall of the contacted water pipe of heat-conducting liquid in fill phase change material.
The invention has the advantages that:
(1) because the latent heat of phase change of phase change material is very big, and this material of small size just can absorb very big heat, and the semiconductor cooler volume that the thermal conductance cartonning is outer also is very little, therefore, this cooler is with respect to water-cooled, and it is little to have a volume, the advantage that amount of cooling water is big.
(2) the present invention has entery and delivery port equally, and the structure that need not improve laser head inside just can be directly cooled off the laser head of most solid state lasers, and adaptability is strong.
Description of drawings
Fig. 1 is the schematic diagram of conductor refrigeration system.
Fig. 2 is the structure diagram of first embodiment of the invention.
Fig. 3 is the A-A profile of Fig. 2.
Fig. 4 is the profile of water pipe among Fig. 2.
Fig. 5 is the structure diagram of second embodiment of the invention.
Fig. 6 is the B-B profile of Fig. 5.
Fig. 7 is the structure diagram of third embodiment of the invention.
Fig. 8 is the C-C profile of Fig. 7.
Fig. 9 is the structure diagram of four embodiment of the invention.
Figure 10 is the D-D profile of Fig. 9.
Embodiment
The existence of material it has been generally acknowledged that three-state: solid-state, liquid state and gaseous state, material changes to another kind of state phase transformation from a kind of state.Phase change material (PCM) will absorb heat from environment and emit heat to environment in its image change procedure, or emits cold from environment absorption cold to environment, thereby reaches the purpose of store energy and release.Simultaneously, because the process of its phase transformation generally is isothermal or approximate constant temperature process, can be used to adjust the temperature of control surrounding environment, and can be repeatedly used.
Conductor refrigeration claims thermoelectric cooling, thermoelectric cooling again, and its theoretical foundation then is Peltier effect.1834, the French scientist Peltier was found cold and hot phenomenon occurs in the junction, and the performance of this phenomenon in semi-conducting material to be particularly evident, can produce effective refrigeration output when the loop that two kinds of different conductors are formed passes to direct current.
Fig. 1 is the schematic diagram of conductor refrigeration system, the thermocouple that this system is made up of three metallic plates, 1,4,5 and one secondary galvanic couple arm, and the galvanic couple arm is made of a P type semiconductor 2 and a N type semiconductor 3.When passing to the diagram electric current, when leaving metallic plate 1 owing to charge carrier, potential energy increases, and causes metallic plate 1 to turn cold; Charge carrier entered metallic plate at 4,5 o'clock, and potential energy reduces, and caused metallic plate 4 and 5 heating, produced cooling effect.
By Fig. 2, Fig. 3 and shown in Figure 4, casing can be cuboid, and tank wall 10 refers to six faces of casing, has the hole on the sidewall of tank wall 10, tabular semiconductor cooler 17 is housed in the hole, and tabular semiconductor cooler 17 can be selected commercially available tabular semiconductor cooler as required for use.Tabular semiconductor cooler 17 is made up of cold junction heat dump 12, cold drawing 13, thermoelectric pile 14, hot plate 15 and hot-side heat dissipation device 16, cold drawing 13 is connected with tank wall 10, its junction sealing, generally can adopt welded seal or add sealing ring, tighten up a screw and seal, cold junction heat dump 12 is positioned at casing, and thermoelectric pile 14, hot plate 15 and hot-side heat dissipation device 16 are positioned at outside the casing.But filling heat insulator 9 in tank wall 10, and heat-insulating material 9 can be foamed plastics, litaflex, mineral wool or cork article etc.On the roof of tank wall 10 and a sidewall, have water inlet g and delivery port h, water pipe 7 is housed in casing, water pipe 7 is curved shape, its cross section is circular, one end of water pipe 7 meets the delivery port e of laser head 6 by water inlet g, the other end is by delivery port h water pump 11, and water pump 11 meets the water inlet f of laser head 6.Fill heat-conducting liquid 8 in casing, heat-conducting liquid 8 can be water, inorganic liquid or oils etc.Water pipe 7 places heat-conducting liquid 8, fills phase change material 18 in the tube wall of water pipe 7.
After the power-on, laser head 6, water pump 11 and semiconductor cooler 17 are started working.Lamp produces a large amount of heat in laser head 6 chambeies when pumping, and the chamber inner cold water becomes hot water after drawing these heats, under the drive of water pump 11, flows out the delivery port e of laser head 6, enters the water inlet g of cooler, imports the water pipe 7 that is attached thereto then.The hot water that cooled off laser head 6 is absorbed heat by the phase change material in the water pipe 718 in process of flowing, hot water becomes cold water, and cold water is pumped into the water inlet f of laser head 6 again by delivery port h, water pump 11, once more laser head 6 is cooled off, and reaches circulation.After the few minutes of operation, along with phase change material 18 absorbs increasing of heat, when phase change material 18 absorbs certain heat, when reaching its latent heat of phase change, become liquid by solid, lose the phase-change accumulation energy effect after, laser head 6 and water pump 11 quit work, the no longer bright dipping of laser this moment.Phase change material 18 begins to give heat-conducting liquid 8 with the heat conduction of its absorption, passes to cold junction heat dump 12 by heat-conducting liquid 8 again, rejects heat in the air through hot-side heat dissipation device 16 and goes.Through a few minutes, phase change material 18 has recovered energy-storage function, and this moment, laser head 6 and water pump 11 were started working again, the circulation of a beginning new round.
By Fig. 5 and shown in Figure 6, the shape of water pipe 7 is different with embodiment 1.Certainly, water pipe 7 also can be other shape.
Described water pipe 7 can be two row or two row more than, every row's a termination first water tank 20, another termination second water tank 22, the first water tanks 20 communicate with water inlet g by water inlet pipe 19, second water tank 22 communicates with delivery port h by outlet pipe 21.
By Fig. 7 and shown in Figure 8, on the sidewall of tank wall 10 and diapire, have the hole, tabular semiconductor cooler 17 is housed, its junction sealing in the hole.But filling heat insulator 9 in tank wall 10, and heat-insulating material 9 can be foamed plastics, litaflex, mineral wool or cork article etc.Have water inlet g and delivery port h on two sidewalls of tank wall 10, water pipe 7 is housed in casing, have seven rows, every row vertically arranges, and its cross section is square.Water pipe 7 every rows' a termination first water tank 20, another termination second water tank 22, the first water tanks 20 communicate with water inlet g by water inlet pipe 19, and the import of a water and the outlet of seven water are promptly arranged on first water tank 20, and its junction sealing can be adopted welded seal.Second water tank 22 communicates with delivery port h by outlet pipe 21, promptly has the import of seven water and the outlet of a water on second water tank 22, and its junction sealing can be adopted welded seal.Fill heat-conducting liquid 8 in casing, heat-conducting liquid 8 can be water, inorganic liquid or oils etc.Water pipe 7 parts place heat-conducting liquid 8, first water tank 20 places heat-conducting liquid 8, second water tank 22 does not place heat-conducting liquid 8, with the tube wall of heat-conducting liquid 8 contacted water pipes 7 in fill phase change material 18, for the cooling effect that makes cooler better, in the tank wall of first water tank 20, phase change material can be filled, in the tank wall of second water tank 22, phase change material or heat-insulating material can be filled.
By Fig. 9 and shown in Figure 10, on the two side of tank wall 10 and diapire, have the hole, tabular semiconductor cooler 17 is housed in the hole, water pipe 7 is housed in casing, have eight rows, every row's arranged askew.Water pipe 7 parts and second water tank 22 place heat-conducting liquid 8, the first water tanks 20 not place heat-conducting liquid 8, fill phase change material 18 in the tube wall of water pipe 7, fill phase change material or heat-insulating material in the tank wall of second water tank 22.Better for the cooling effect that makes cooler, in the tank wall of first water tank 20, can fill phase change material.
Claims (7)
1. phase-change accumulation energy laser head cooler, comprise water pump, it is characterized in that: on the tank wall (10) of casing, have the hole, tabular semiconductor cooler (17) is housed on the hole, its cold drawing (13) is connected with tank wall (10), the junction sealing, cold junction heat dump (12) is positioned at casing, thermoelectric pile (14), hot plate (15) and hot-side heat dissipation device (16) are positioned at outside the casing, on the sidewall of tank wall (10), have water inlet (g) and delivery port (h), water pipe (7) is housed in casing, and an end of water pipe (7) communicates with water inlet (g), and the other end communicates with delivery port (h), delivery port (h) joins with water pump (11), fill heat-conducting liquid (8) in casing, water pipe (7) places heat-conducting liquid (8), with the tube wall of the contacted water pipe of heat-conducting liquid (8) (7) in fill phase change material (18).
2. phase-change accumulation energy laser head cooler according to claim 1, it is characterized in that: described water pipe (7) is more than two rows or two arrange, every row's a termination first water tank (20), another termination second water tank (22), first water tank (20) communicates with water inlet (g) by water inlet pipe (19), and second water tank (22) communicates with delivery port (h) by outlet pipe (21).
3. phase-change accumulation energy laser head cooler according to claim 2 is characterized in that: fill phase change material in the tank wall of first water tank (20).
4. phase-change accumulation energy laser head cooler according to claim 2 is characterized in that: fill phase change material or heat-insulating material in the tank wall of second water tank (22).
5. phase-change accumulation energy laser head cooler according to claim 3 is characterized in that: fill phase change material or heat-insulating material in the tank wall of second water tank (22).
6. phase-change accumulation energy laser head cooler according to claim 1 and 2 is characterized in that: filling heat insulator (9) in tank wall (10).
7. phase-change accumulation energy laser head cooler according to claim 1 and 2 is characterized in that: described tabular semiconductor cooler (17) is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410061404 CN1291530C (en) | 2004-12-20 | 2004-12-20 | Phase-change energy-storage laser head cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410061404 CN1291530C (en) | 2004-12-20 | 2004-12-20 | Phase-change energy-storage laser head cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1624991A true CN1624991A (en) | 2005-06-08 |
| CN1291530C CN1291530C (en) | 2006-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410061404 Expired - Fee Related CN1291530C (en) | 2004-12-20 | 2004-12-20 | Phase-change energy-storage laser head cooler |
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| Country | Link |
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| CN (1) | CN1291530C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397318A (en) * | 2015-12-29 | 2016-03-16 | 苏州润昇精密机械有限公司 | Laser welding head structure capable of automatically cooling welded workpiece |
| CN105870764A (en) * | 2015-11-19 | 2016-08-17 | 中国工程物理研究院应用电子学研究所 | Circulating cooling system of laser device and control method of circulating cooling system |
| CN105932525A (en) * | 2016-05-11 | 2016-09-07 | 深圳市酷凌时代科技有限公司 | Portable laser cooling and power supply apparatus |
| CN107634441A (en) * | 2017-09-14 | 2018-01-26 | 中国人民解放军国防科技大学 | Phase change cold accumulation thermal management system for high-power optical fiber laser |
| CN111644749A (en) * | 2020-05-19 | 2020-09-11 | 黎功成 | Energy-saving and environment-friendly gas laser tube for laser marking machine |
| CN114619156A (en) * | 2022-05-17 | 2022-06-14 | 江苏觅科激光设备有限公司 | Water-cooled laser cutting head convenient to tear open and trade |
-
2004
- 2004-12-20 CN CN 200410061404 patent/CN1291530C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870764A (en) * | 2015-11-19 | 2016-08-17 | 中国工程物理研究院应用电子学研究所 | Circulating cooling system of laser device and control method of circulating cooling system |
| CN105397318A (en) * | 2015-12-29 | 2016-03-16 | 苏州润昇精密机械有限公司 | Laser welding head structure capable of automatically cooling welded workpiece |
| CN105932525A (en) * | 2016-05-11 | 2016-09-07 | 深圳市酷凌时代科技有限公司 | Portable laser cooling and power supply apparatus |
| CN107634441A (en) * | 2017-09-14 | 2018-01-26 | 中国人民解放军国防科技大学 | Phase change cold accumulation thermal management system for high-power optical fiber laser |
| CN111644749A (en) * | 2020-05-19 | 2020-09-11 | 黎功成 | Energy-saving and environment-friendly gas laser tube for laser marking machine |
| CN111644749B (en) * | 2020-05-19 | 2022-06-21 | 深圳铭创智能装备有限公司 | Energy-saving and environment-friendly gas laser tube for laser marking machine |
| CN114619156A (en) * | 2022-05-17 | 2022-06-14 | 江苏觅科激光设备有限公司 | Water-cooled laser cutting head convenient to tear open and trade |
| CN114619156B (en) * | 2022-05-17 | 2022-07-12 | 江苏觅科激光设备有限公司 | Water-cooled laser cutting head convenient to tear open and trade |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1291530C (en) | 2006-12-20 |
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