CN103986045A - High-stability carbon dioxide laser with negative electrode heat insulation device - Google Patents
High-stability carbon dioxide laser with negative electrode heat insulation device Download PDFInfo
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- CN103986045A CN103986045A CN201410236831.9A CN201410236831A CN103986045A CN 103986045 A CN103986045 A CN 103986045A CN 201410236831 A CN201410236831 A CN 201410236831A CN 103986045 A CN103986045 A CN 103986045A
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- negative electrode
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Abstract
The invention relates to the field of lasers, in particular to a high-stability carbon dioxide laser with a negative electrode heat insulation device. The high-stability carbon dioxide laser comprises a gas storing pipe, a water cooling pipe and a discharge pipe, wherein the gas storing pipe, the water cooling pipe and the discharge pipe are sequentially arranged in a sleeved mode from outside to inside. The two ends of the discharge pipe are provided with a positive electrode and a negative electrode respectively, and the gas storing pipe is provided with a water inlet pipe and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are communicated with the water cooling pipe. The negative electrode is sleeved with the heat insulation device, and the heat insulation device is located between the negative electrode and the gas storing pipe. Due to the fact that the negative electrode is sleeved with the heat insulation device, heat radiated by the negative electrode to the gas storing pipe is reduced, the deformation caused by heating of the gas storing pipe is reduced, the influences on alignment of an output window and a reflecting window by temperature changes of the negative electrode are reduced, and the stability of output laser beams of the laser is improved.
Description
Technical field
The present invention relates to field of lasers, particularly there is the high stability carbon dioxide laser of negative electrode heat-proof device.
Background technology
Because carbon dioxide laser has larger power and higher energy conversion efficiency, spectral line is also abundanter, has the Laser output of tens spectral lines near 10 microns, at aspects such as industry, military affairs, medical treatment, scientific researches, is all widely used.
Current carbon dioxide laser, generally include discharge tube, be set in the water cooling tube of discharge tube outside, the output window and the reflection window that are set in the cylinder of water cooling tube outside, the negative electrode that is separately positioned on discharge tube two ends and positive electrode and are arranged on cylinder two ends, reflection window includes reflecting optics and reflecting optics cooling device, output window includes output eyeglass and output eyeglass cooling device, fills with carbon dioxide and other assist gas in discharge tube; When adding high voltage on electrode, in discharge tube, produce glow discharge, through reflecting optics and output lens reflecting, make photon repeatedly shake and form laser beam in discharge tube, from output eyeglass, penetrate and obtain final laser beam.
When laser works, discharge tube and negative electrode all have higher temperature, although sheathed water cooling tube carries out cooling to discharge tube outside discharge tube, guarantee the normal work of laser, but because water cooling tube is set in discharge tube outside, for the negative electrode that is arranged on discharge tube end, but can not play good cooling effect, negative electrode is constantly to cylinder radiations heat energy, local location temperature corresponding with negative electrode on cylinder is raise, cause cylinder to produce deformation, owing to reflecting window and output window, be arranged in cylinder two ends, so when cylinder produces deformation, the alignment accuracy of reflection window and output window declines, directly reduced the stability of laser output laser beam quality.
So, need badly at present a kind of can good cooling negative electrode, improve the carbon dioxide laser of laser beam output stability.
Summary of the invention
The object of the invention is to: for existing carbon dioxide laser above shortcomings, provide a kind of can good cooling negative electrode, improve the carbon dioxide laser of laser beam output stability.
To achieve these goals, the technical solution used in the present invention is:
A kind of high stability carbon dioxide laser with negative electrode heat-proof device, comprise ecto-entad sheathed cylinder, water cooling tube and discharge tube successively, described discharge tube two ends are respectively arranged with positive electrode and negative electrode, on described cylinder, be provided with water inlet pipe and the outlet pipe connected with described water cooling tube, described negative electrode outer cover is provided with heat-proof device, and described heat-proof device is between described negative electrode and described cylinder.By at the outside sheathed heat-proof device of negative electrode, reduce negative electrode to cylinder radiations heat energy, reduce the temperature distortion amount of cylinder, and then reduced the impact of negative electrode variations in temperature on output window and reflection window alignment accuracy, improved the stability of laser output laser beam.
As preferably, described heat-proof device is the helix tube that is looped around described negative electrode outside.Heat-proof device is set to helix tube, helix tube is looped around negative electrode outside, and the heat radiation that stops negative electrode is to time on cylinder, and the temperature of self also can raise, also can there is deformation in self, and the length of helix tube own is longer, and there is certain elasticity, so heat-proof device is set to helix tube, make heat-proof device when being subject to thermal deformation, self can have enough deflections, and minimizing is pullled water cooling tube, guarantees the stability of laser output laser beam.
As preferably, described helix tube and described water cooling tube are connected.Helix tube and water cooling tube are connected, cooling water in water cooling tube can enter in helix tube, make helix tube not only play the heat stoping in negative electrode and be delivered to the effect on cylinder, simultaneously, being delivered to heat on the helix tube water that can be cooled takes away, so also play the effect of cooling negative electrode, further avoided the temperature of negative electrode to be delivered on cylinder, improve the stability of laser output laser beam.
As preferably, in described water inlet pipe and outlet pipe, near one end of one of described negative electrode, pass described cylinder and connect with external water source, one end connection of the other end and described helix tube, the other end of described helix tube and the connection of described water cooling tube.Helix tube is connected in the water route of water inlet pipe, water cooling tube and outlet pipe, the cooling water of helix tube inside is ceaselessly flowed, improve effect of heat insulation and the cooling effect of helix tube;
In addition, in traditional carbon dioxide laser, discharge tube one end is fixedly connected with cylinder, the other end is vacant state, the outside sheathed water cooling tube of discharge tube, the two ends of water cooling tube arrange respectively water inlet pipe and outlet pipe, water inlet pipe and outlet pipe pass cylinder, and be fixedly connected with cylinder, because the gap between water cooling tube and cylinder is less, make water inlet pipe and the outlet pipe partial-length between water cooling tube and cylinder shorter, the deflection allowing is also less, so the two ends of water cooling tube are equivalent to being fixed on cylinder of rigidity.
So, traditional carbon dioxide laser is in moving transportation, when laser is impacted or is clashed into, the water cooling tube of slim-lined construction and discharge tube are because two ends are fixed, so can there is a certain amount of bending, when amount of bow is excessive, water cooling tube or discharge tube fracture, directly cause the damage of laser;
In addition, water cooling tube two ends being fixed on cylinder by rigidity due to slim-lined construction, when laser works, the temperature of cylinder and the temperature of water cooling tube have certain difference, so cylinder Yin Wendu is not identical at the deformation quantity of length direction with water cooling tube at the deformation quantity of length direction, institute is so that mutually pull between cylinder and water cooling tube, cause cylinder to bend, and then the reflection window and the output window alignment accuracy that are arranged on cylinder two ends are declined, finally cause the decline of laser output laser quality; When cylinder and water cooling tube deformation quantity differ larger, even occur that water cooling tube or cylinder are by the situation of drawing crack, directly cause laser to be scrapped.
And carbon dioxide laser of the present invention, water cooling tube at negative electrode place is to be connected with water inlet pipe or outlet pipe by helix tube, because helix tube can allow larger deformation quantity, so the water cooling tube at negative electrode place and cylinder are equivalent to flexibly connect, so, when laser, moving while being subject to impacting in transportation, helix tube can provide certain distortion cushion space, avoids water cooling tube and discharge tube because of the excessive damage of bending;
Carbon dioxide laser of the present invention in use, when water cooling tube and cylinder are when the elongation of length direction is inconsistent, helix tube still can provide certain distortion cushion space, reduce the intensity of pullling between water cooling tube and cylinder, and then improved the stability of laser output laser beam, avoid occurring that water cooling tube or cylinder are by the situation of drawing crack.
As preferably, described helix tube and described negative electrode are spaced apart.When laser works, if electrode temperature is too low, the power of laser output laser beam will be affected, so helix tube and negative electrode are separated to suitable distance, make helix tube not cause again the temperature of negative electrode too low and affect the output quality of laser in the effect that plays heat insulation and cooling negative electrode.
As preferably, in described helix tube is coated on described negative electrode completely.In helix tube is all coated on negative electrode, and separate suitable distance with negative electrode, make obstruct negative electrode that helix tube can be good to cylinder radiations heat energy, and also make the helix tube can uniform cooling negative electrode, avoid occurring in negative electrode the situation of local overheating.
In sum, owing to having adopted technique scheme, the invention has the beneficial effects as follows:
Improved the stability of laser output laser beam;
Other beneficial effects in concrete enforcement are:
1, when laser, moving while being subject to impacting in transportation, helix tube can provide certain distortion cushion space, avoids water cooling tube and discharge tube because of the excessive damage of bending;
2, helix tube can provide certain distortion cushion space, reduces the intensity of pullling between water cooling tube and cylinder, and then has improved the stability of laser output laser beam, avoids occurring that water cooling tube or cylinder are by the situation of drawing crack.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Mark in figure: 1-cylinder, 2-water cooling tube, 3-discharge tube, 4-positive electrode, 5-negative electrode, 6-water inlet pipe, 7-outlet pipe, 8-helix tube, 9-reflects window, 10-output window.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
A kind of high stability carbon dioxide laser with negative electrode heat-proof device as shown in the figure, comprise ecto-entad sheathed cylinder 1, water cooling tube 2 and discharge tube 3 successively, described discharge tube 3 two ends are respectively arranged with positive electrode 4 and negative electrode 5, on described cylinder 1, be provided with water inlet pipe 6 and the outlet pipe 7 connected with described water cooling tube 2, described negative electrode 5 outer cover are provided with heat-proof device, and described heat-proof device is between described negative electrode 5 and described cylinder 1.By at the outside sheathed heat-proof device of negative electrode 5, reduce negative electrode 5 to cylinder 1 radiations heat energy, reduce the temperature distortion amount of cylinder 1, and then reduced the impact of negative electrode 5 variations in temperature on output window 9 and reflection window 10 alignment accuracy, improved the stability of laser output laser beam.
As preferably, described heat-proof device is the helix tube 8 that is looped around described negative electrode 5 outsides.Heat-proof device is set to helix tube 8, helix tube 8 is looped around negative electrode 5 outsides, and the heat radiation that stops negative electrode 5 is to time on cylinder 1, and the temperature of self also can raise, also can there is deformation in self, and the length of helix tube 8 own is longer, and there is certain elasticity, so heat-proof device is set to helix tube 8, make heat-proof device when being subject to thermal deformation, self can have enough deflections, and minimizing is pullled water cooling tube 2, guarantees the stability of laser output laser beam.
As preferably, described helix tube 8 is connected with described water cooling tube 2.Helix tube 8 is connected with water cooling tube 2, cooling water in water cooling tube 2 can enter in helix tube 8, make helix tube 8 not only play the heat stoping in negative electrode 5 and be delivered to the effect on cylinder 1, simultaneously, being delivered to heat on helix tube 8 water that can be cooled takes away, so also play the effect of cooling negative electrode 5, further avoided the temperature of negative electrode 5 to be delivered on cylinder 1, improve the stability of laser output laser beam.
As preferably, in described water inlet pipe 6 and outlet pipe 7, near one end of one of described negative electrode 5, pass described cylinder 1 and connect with external water source, one end of the other end and described helix tube 8 is connected, the other end of described helix tube 8 and 2 connections of described water cooling tube.Helix tube 8 is connected in the water route of water inlet pipe 6, water cooling tube 2 and outlet pipe 7, the cooling water of helix tube 8 inside is ceaselessly flowed, improve effect of heat insulation and the cooling effect of helix tube 8;
In addition, in traditional carbon dioxide laser, discharge tube 3 one end are fixedly connected with cylinder 1, the other end is vacant state, the outside sheathed water cooling tube 2 of discharge tube 3, the two ends of water cooling tube 2 arrange respectively water inlet pipe 6 and outlet pipe 7, water inlet pipe 6 and outlet pipe 7 pass cylinder 1, and be fixedly connected with cylinder 1, because the gap between water cooling tube 2 and cylinder 1 is less, make water inlet pipe 6 and outlet pipe 7 partial-length between water cooling tube 2 and cylinder 1 shorter, the deflection allowing is also less, so, the two ends of water cooling tube 2 are equivalent to being fixed on cylinder 1 of rigidity.
So, traditional carbon dioxide laser is in moving transportation, when laser is impacted or is clashed into, the water cooling tube 2 of slim-lined construction and discharge tube 3 are because two ends are fixed, so can there is a certain amount of bending, when amount of bow is excessive, water cooling tube 2 or discharge tube 3 fractures, directly cause the damage of laser;
In addition, water cooling tube 2 two ends being fixed on cylinder 1 by rigidity due to slim-lined construction, when laser works, the temperature of the temperature of cylinder 1 and water cooling tube 2 has certain difference, so cylinder 1 because of temperature not identical at the deformation quantity of length direction with water cooling tube 2 at the deformation quantity of length direction, institute is so that mutually pull between cylinder 1 and water cooling tube 2, cause cylinder 1 to bend, and then the reflection window 9 and output window 10 alignment accuracy that are arranged on cylinder 1 two ends are declined, finally cause the decline of laser output laser quality; When cylinder 1 and water cooling tube 2 deformation quantities differ larger, even occur that water cooling tube 2 or cylinder 1, by the situation of drawing crack, directly cause laser to be scrapped.
And carbon dioxide laser of the present invention, water cooling tube 2 at negative electrode 5 places is to be connected with water inlet pipe 6 or outlet pipe 7 by helix tube 8, because helix tube 8 can allow larger deformation quantity, so water cooling tube 2 and the cylinder 1 at negative electrode 5 places are equivalent to flexibly connect, so, when laser, moving while being subject to impacting in transportation, helix tube 8 can provide certain distortion cushion space, avoids water cooling tube 2 and discharge tube 3 because of the excessive damage of bending;
Carbon dioxide laser of the present invention in use, when water cooling tube 2 and cylinder 1 are when the elongation of length direction is inconsistent, helix tube 8 still can provide certain distortion cushion space, reduce the intensity of pullling between water cooling tube 2 and cylinder 1, and then improved the stability of laser output laser beam, avoid occurring that water cooling tube 2 or cylinder 1 are by the situation of drawing crack.
As preferably, described helix tube 8 is spaced apart with described negative electrode 5.When laser works, if electrode temperature is too low, the power of laser output laser beam will be affected, so helix tube 8 and negative electrode 5 are separated to suitable distance, make helix tube 8 not cause again the temperature of negative electrode 5 too low and affect the output quality of laser in the effect that plays heat insulation and cooling negative electrode 5.
As preferably, in described helix tube 8 is coated on described negative electrode 5 completely.In helix tube 8 is all coated on negative electrode 5, and separate suitable distance with negative electrode 5, make 5 pairs of cylinder 1 radiations heat energies of obstruct negative electrode that helix tube 8 can be good, and also make the helix tube 8 can uniform cooling negative electrode 5, avoid occurring in negative electrode 5 situation of local overheating.
All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. the high stability carbon dioxide laser with negative electrode heat-proof device, comprise ecto-entad sheathed cylinder, water cooling tube and discharge tube successively, described discharge tube two ends are respectively arranged with positive electrode and negative electrode, on described cylinder, be provided with water inlet pipe and the outlet pipe connected with described water cooling tube, it is characterized in that, described negative electrode outer cover is provided with heat-proof device, and described heat-proof device is between described negative electrode and described cylinder.
2. the high stability carbon dioxide laser with negative electrode heat-proof device according to claim 1, is characterized in that, described heat-proof device is the helix tube that is looped around described negative electrode outside.
3. the high stability carbon dioxide laser with negative electrode heat-proof device according to claim 2, is characterized in that, described helix tube and described water cooling tube are connected.
4. the high stability carbon dioxide laser with negative electrode heat-proof device according to claim 3, it is characterized in that, one end of one near described negative electrode in described water inlet pipe and outlet pipe passes described cylinder and external water source connection, one end of the other end and described helix tube is connected, and the other end of described helix tube and described water cooling tube are connected.
5. the high stability carbon dioxide laser with negative electrode heat-proof device according to claim 4, is characterized in that, described helix tube and described negative electrode are spaced apart.
6. according to the high stability carbon dioxide laser with negative electrode heat-proof device described in claim 2-5 any one, it is characterized in that, in described helix tube is coated on described negative electrode completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410236831.9A CN103986045A (en) | 2014-05-30 | 2014-05-30 | High-stability carbon dioxide laser with negative electrode heat insulation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410236831.9A CN103986045A (en) | 2014-05-30 | 2014-05-30 | High-stability carbon dioxide laser with negative electrode heat insulation device |
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| CN103986045A true CN103986045A (en) | 2014-08-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058295A1 (en) * | 2014-10-15 | 2016-04-21 | 成都微深科技有限公司 | Straight cavity-type ultra-long gas storage tube for carbon dioxide laser |
| CN108155545A (en) * | 2018-02-02 | 2018-06-12 | 成都微深科技有限公司 | A kind of cooling device and its carbon dioxide laser conducive to gas discharge |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3628181A (en) * | 1969-01-01 | 1971-12-14 | Nat Res Dev | Gas discharge lasers |
| FR2554982A1 (en) * | 1983-11-16 | 1985-05-17 | Comp Generale Electricite | Hollow cathode for metal vapour laser and laser applying same |
| CN103259163A (en) * | 2013-05-09 | 2013-08-21 | 成都微深科技有限公司 | Laser device with novel negative electrode cooling device |
| CN203850611U (en) * | 2014-05-30 | 2014-09-24 | 成都微深科技有限公司 | High-stability carbon dioxide laser with negative electrode heat-insulation device |
-
2014
- 2014-05-30 CN CN201410236831.9A patent/CN103986045A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3628181A (en) * | 1969-01-01 | 1971-12-14 | Nat Res Dev | Gas discharge lasers |
| FR2554982A1 (en) * | 1983-11-16 | 1985-05-17 | Comp Generale Electricite | Hollow cathode for metal vapour laser and laser applying same |
| CN103259163A (en) * | 2013-05-09 | 2013-08-21 | 成都微深科技有限公司 | Laser device with novel negative electrode cooling device |
| CN203850611U (en) * | 2014-05-30 | 2014-09-24 | 成都微深科技有限公司 | High-stability carbon dioxide laser with negative electrode heat-insulation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058295A1 (en) * | 2014-10-15 | 2016-04-21 | 成都微深科技有限公司 | Straight cavity-type ultra-long gas storage tube for carbon dioxide laser |
| CN108155545A (en) * | 2018-02-02 | 2018-06-12 | 成都微深科技有限公司 | A kind of cooling device and its carbon dioxide laser conducive to gas discharge |
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Application publication date: 20140813 |