CN203859378U - Active cooling-type high-energy laser absorption device - Google Patents
Active cooling-type high-energy laser absorption device Download PDFInfo
- Publication number
- CN203859378U CN203859378U CN201420195511.9U CN201420195511U CN203859378U CN 203859378 U CN203859378 U CN 203859378U CN 201420195511 U CN201420195511 U CN 201420195511U CN 203859378 U CN203859378 U CN 203859378U
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- Prior art keywords
- laser
- active cooling
- superlaser
- absorption body
- laser absorption
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- Expired - Lifetime
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 76
- 238000001816 cooling Methods 0.000 claims abstract description 33
- 239000006096 absorbing agent Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007769 metal material Substances 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 241000196324 Embryophyta Species 0.000 description 6
- 210000004877 mucosa Anatomy 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 241000931526 Acer campestre Species 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000004446 light reflex Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- Lasers (AREA)
- Laser Beam Processing (AREA)
Abstract
The utility model discloses an active cooling-type high-energy laser absorption device, which comprises a laser beam expander (1), a laser absorber (2) and an active cooling module (3). High-energy laser is amplified via the laser beam expander (1) and irradiates on the laser absorber (2), energy can be completely absorbed after several times of reflection are carried out in the laser absorber (2), the energy is converted into heat energy of the laser absorber (2), and the laser has no reflection overflow. The reflection surface of the laser absorber (2) absorbs little light energy for each reflection and thus can be prevented from being broken by the high-energy laser, metal dust is not generated, the heat energy of the laser absorber (2) is transmitted to the active cooling module (3) in a heat conduction mode, the heat energy is taken away by circulating cooling water in the active cooling module (3), and the temperature is reduced.
Description
Technical field
The utility model relates to a kind of laser energy conversion equipment, relates in particular to a kind of active cooling-type superlaser absorption plant.
Background technology
In high power laser equipment application process, may need to stop at any time Laser output according to actual conditions.Generally by laying optical gate in light path, laser is blocked to realize, without stopping laser diode current supply.Because laser energy is higher, the laser safety of blocking-up need to be irradiated to a laser absorption body.
At present, high power laser absorber generally adopts the structure of taper energy cup, and if the patent No. is CN201711673U described in patent, its typical problem is:
1, easily break on laser contact surface, need often change, not easy-maintaining;
2, emergency light reflex, causes the light aging of optical gate, cable and other accessories;
3, produce dust, environment and optics are caused to damage, accelerate optical mirror slip and laser ageing, reduce the life-span, the serious laser that may cause can not bright dipping.
The patent No. is in the patent of CN201625838U, and described absorber is dispersed launching spot by camber reflection body, thereby reduces laser power density, the life-span of having improved to a certain extent absorber.But, if launching spot is very thin or laser energy is higher, will the fatal damage of precocity to camber reflection body.In addition, absorber is abundant not to the absorption of light, still has a large amount of laser to reflect and overflows absorber, and peripheral devices is caused to light aging impact.
Utility model content
The purpose of this utility model is that a kind of active cooling-type superlaser absorption plant will be provided.
For achieving the above object, the utility model is implemented according to following technical scheme:
A kind of active cooling-type superlaser absorption plant, comprise laser beam expander (1), laser absorption body (2) and active cooling module (3), laser beam expander (1) lower end is connected with laser absorption body (2) top, the inside of laser absorption body (2) is provided with multiple fins (4), laser absorption body (2) inside is divided into gap structure by multiple fins (4), active cooling module (3) is connected with laser absorption body (2), active cooling module (3) two ends are respectively arranged with water inlet (5) and delivery port (6).
Particularly, superlaser enters after laser absorption body (2), at the gap structure inner surface multiple reflections of absorber (2).
As preferably, fin (4) is wedge structure.
Superlaser is at laser absorption body (2) gap structure inner surface multiple reflections, and laser energy is through progressively reducing and all convert to the heat energy of absorber after repeatedly absorbing; Fin (4) is wedge structure, prevents that Ear Mucosa Treated by He Ne Laser Irradiation from returning on the upper reflection of fin (4) Bing Congyuan road.
Particularly, laser beam expander (1) lower end is provided with external screw thread, and laser beam expander (1) is connected with the internal thread that is arranged on laser absorption body (2) top by external screw thread,
Further, laser absorption body (2) adopts the metal material to the high reflection of laser.
Further, metal material to the laser absorption rate of various wavelength lower than 10%.
Further, metal material is aluminium alloy, copper or gold.
Prevent that laser from breaking first light contact-making surface of laser absorption body (2), form metal dust and pollute laser internal environment.
Particularly, active cooling module (3) adopts stainless steel material.
Active cooling module (3) adopts stainless steel material, prevents that cooling water channel from polluting cooling water.
Further, active cooling module (3) is connected by screw in compression with laser absorption body (2).
Further, between active cooling module (3) and laser absorption body (2), be filled with heat-conducting silicone grease.
In the middle of module, fill heat-conducting silicone grease, ensure that the heat of laser absorption body (2) can all conduct to active cooling module (3) the water cooling that is cooled.
Compared with prior art, the utility model comprises laser beam expander, laser absorption body and active cooling module, and laser beam expander expands the hot spot that enters absorber, reduces its laser power density, has protected absorber not broken; In the middle of module, fill heat-conducting silicone grease, ensure that the heat of laser absorption body can all conduct to active cooling module the water cooling that is cooled; Laser absorption body adopts unique finned absorbent structure design, each fin is wedge structure, can ensure that laser does not contact and can be reflected with absorber first surface, slit depth between fin is darker, when laser enters after slit multiple reflections, energy is absorbed substantially, does not have light and overflows; Laser absorption body adopts low laser absorption, the highly heat-conductive materials such as aluminium alloy, copper, gold, and guarantee laser is absorbed in a large number through multiple reflections, but first light contact-making surface is not broken generation dust when first reflection.
Brief description of the drawings
Fig. 1 is the overall structure schematic diagram of a kind of active cooling-type superlaser of the utility model absorption plant;
Fig. 2 is laser beam expanding schematic diagram of the present utility model;
Fig. 3 is the propagation schematic diagram of superlaser in gap structure in the utility model.
In figure: 1, laser beam expander, 2, laser absorption body, 3, active cooling module, 4, fin, 5, water inlet, 6, delivery port.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described, is used for explaining the utility model in illustrative examples and the explanation of this utility model, but not as to restriction of the present utility model.
As shown in Figure 1, a kind of active cooling-type superlaser absorption plant, is characterised in that its structure comprises: laser beam expander (1), laser absorption body (2), active cooling module (3).There is external screw thread laser beam expander (1) lower end, links together by the internal thread on external screw thread and laser absorption body (2) top.High energy laser beam is exaggerated 5 to 10 times by its beam waist diameter of beam expander (1), thereby reduce the laser power density that is radiated at laser absorption body (2) first contact-making surfaces, avoid superlaser that laser absorption body is broken, can stand the high-power Ear Mucosa Treated by He Ne Laser Irradiation of multikilowatt.The inside of laser absorption body (2) adopts many gap structures, by multiple fins (4), whole absorber inside is divided into gap structure, superlaser is entered after laser absorption body (2), at laser absorption body (2) gap inner surface multiple reflections, laser energy is through progressively reducing and all convert to the heat energy of laser absorption body (2) after repeatedly absorbing.Fin (4) is designed to wedge structure, prevents that Ear Mucosa Treated by He Ne Laser Irradiation from returning on the upper reflection of fin (4) Bing Congyuan road.The material of laser absorption body (2) is the metal material to the high reflection of laser, to the laser absorption rate of various wavelength all lower than 10%, such as aluminium alloy, copper, gold etc., object is to prevent that laser from breaking first light contact-making surface of laser absorption body (2), forms metal dust and pollutes laser internal environment.Active cooling module (3) adopts stainless steel material, prevents that cooling water channel from polluting cooling water.Active cooling module (3) and laser absorption body (2) close contact, link together by screw in compression.Active cooling module (3) and the middle heat-conducting silicone grease of filling of laser absorption body (2), ensure that the heat of laser absorption body (2) can all conduct to active cooling module (3) the water cooling that is cooled.Refrigerating module two ends are distributed with water inlet (5) and delivery port (6).
Embodiment:
In the present embodiment, entering the front spot diameter D1 of beam expanding lens is 3mm, optical maser wavelength 532nm, laser power 400W.
In the present embodiment, mainly comprise laser beam expander (1), laser absorption body (2), active cooling module (3).Laser beam expander (1) lower end external diameter is 36mm, links together by the internal thread on external screw thread and laser absorption body (2) top.Active cooling module (3) and laser absorption body (2) close contact, link together by screw in compression.In the middle of module, fill heat-conducting silicone grease, ensure that the heat of laser absorption body (2) can all conduct to active cooling module (3) the water cooling that is cooled.Active cooling module (3) two ends are distributed with water inlet (5) and delivery port (6).
Laser beam expander multiplication factor is 8 times as shown in Figure 2; expand the spot diameter D2 that enters laser absorption body (2) to 24mm; be radiated at laser absorption body (2) surface, reduce its laser power density, protected laser absorption body (2) not broken.
Laser absorption body (2) is as shown in Figure 1 aluminum alloy material, the many gap structures of its inner employing, by multiple fins (4), whole laser absorption body (2) inside is divided into gap structure, fin (4) is designed to wedge structure, prevents that Ear Mucosa Treated by He Ne Laser Irradiation from returning on the upper reflection of fin (4) Bing Congyuan road.Fin (4) top width 0.5mm, slit width 3mm, the Area Ratio that can calculate laser absorption body (2) gap and fin (4) is 6: 1, illustrate that 400W laser only has 50W left and right to beat at fin (4) upper surface, the laser of all the other 350W all falls in gap.Aluminium alloy is about 10% to 532nm laser absorption rate, so 50W laser is only had an appointment, 5W light is absorbed by slit upper surface, therefore can not be broken.All the other laser energies enter after slit, and at laser absorption body (2) gap inner surface multiple reflections, laser energy is through progressively reducing and all convert to the heat energy of absorber after repeatedly absorbing.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model, within all falling into protection range of the present utility model.
Claims (10)
1. an active cooling-type superlaser absorption plant, it is characterized in that: comprise laser beam expander (1), laser absorption body (2) and active cooling module (3), laser beam expander (1) lower end is connected with laser absorption body (2) top, the inside of laser absorption body (2) is provided with multiple fins (4), laser absorption body (2) inside is divided into gap structure by multiple fins (4), active cooling module (3) is connected with laser absorption body (2), active cooling module (3) two ends are respectively arranged with water inlet (5) and delivery port (6).
2. a kind of active cooling-type superlaser absorption plant according to claim 1, is characterized in that: superlaser enters after laser absorption body (2), at the gap structure inner surface multiple reflections of absorber (2).
3. a kind of active cooling-type superlaser absorption plant according to claim 1, is characterized in that: fin (4) is wedge structure.
4. a kind of active cooling-type superlaser absorption plant according to claim 1, it is characterized in that: laser beam expander (1) lower end is provided with external screw thread, laser beam expander (1) is connected with the internal thread that is arranged on laser absorption body (2) top by external screw thread.
5. a kind of active cooling-type superlaser absorption plant according to claim 1, is characterized in that: laser absorption body (2) adopts the metal material to the high reflection of laser.
6. a kind of active cooling-type superlaser absorption plant according to claim 5, is characterized in that: metal material to the laser absorption rate of various wavelength lower than 10%.
7. a kind of active cooling-type superlaser absorption plant according to claim 6, is characterized in that: metal material is aluminium alloy, copper or gold.
8. a kind of active cooling-type superlaser absorption plant according to claim 1, is characterized in that: active cooling module (3) adopts stainless steel material.
9. a kind of active cooling-type superlaser absorption plant according to claim 1, is characterized in that: active cooling module (3) is connected by screw in compression with laser absorption body (2).
10. a kind of active cooling-type superlaser absorption plant according to claim 9, is characterized in that: between active cooling module (3) and laser absorption body (2), be filled with heat-conducting silicone grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420195511.9U CN203859378U (en) | 2014-04-22 | 2014-04-22 | Active cooling-type high-energy laser absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420195511.9U CN203859378U (en) | 2014-04-22 | 2014-04-22 | Active cooling-type high-energy laser absorption device |
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| Publication Number | Publication Date |
|---|---|
| CN203859378U true CN203859378U (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420195511.9U Expired - Lifetime CN203859378U (en) | 2014-04-22 | 2014-04-22 | Active cooling-type high-energy laser absorption device |
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| Country | Link |
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| CN (1) | CN203859378U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964903A (en) * | 2017-03-31 | 2017-07-21 | 苏州川普光电有限公司 | A kind of process equipment of high-precision light guide plate |
| WO2021204032A1 (en) * | 2020-04-08 | 2021-10-14 | 深圳光峰科技股份有限公司 | Projection device |
| CN113588136A (en) * | 2021-08-20 | 2021-11-02 | 四川激束光电仪器有限公司 | Laser power meter |
| CN114566860A (en) * | 2022-04-28 | 2022-05-31 | 中国工程物理研究院应用电子学研究所 | Laser absorption device and laser |
-
2014
- 2014-04-22 CN CN201420195511.9U patent/CN203859378U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964903A (en) * | 2017-03-31 | 2017-07-21 | 苏州川普光电有限公司 | A kind of process equipment of high-precision light guide plate |
| WO2021204032A1 (en) * | 2020-04-08 | 2021-10-14 | 深圳光峰科技股份有限公司 | Projection device |
| CN113588136A (en) * | 2021-08-20 | 2021-11-02 | 四川激束光电仪器有限公司 | Laser power meter |
| CN113588136B (en) * | 2021-08-20 | 2024-05-28 | 四川激束光电仪器有限公司 | Laser power meter |
| CN114566860A (en) * | 2022-04-28 | 2022-05-31 | 中国工程物理研究院应用电子学研究所 | Laser absorption device and laser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171211 Address after: Suzhou Industrial Park Suzhou City, Jiangsu province 215021 Xinghu street BioBAY No. 218 building 601 unit B8 Patentee after: REALTON (SUZHOU) MEDICAL TECHNOLOGY Co.,Ltd. Address before: 100085, room 7, No. five, 103 street, Beijing, Haidian District Patentee before: BEIJING REALTON LASER TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |
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| CX01 | Expiry of patent term |