CN213717239U - Replaceable heat exchange module for amplification stage fiber inlet point of high-power fiber laser - Google Patents
Replaceable heat exchange module for amplification stage fiber inlet point of high-power fiber laser Download PDFInfo
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- CN213717239U CN213717239U CN202023278842.3U CN202023278842U CN213717239U CN 213717239 U CN213717239 U CN 213717239U CN 202023278842 U CN202023278842 U CN 202023278842U CN 213717239 U CN213717239 U CN 213717239U
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Abstract
The utility model provides a removable heat exchange module of fine point is gone into to high power fiber laser amplifier stage, include: an amplification-stage liquid cooling plate; go into fine some heat transfer module, by the water-cooling lid that has the cavity and the water-cooling block that has the cavity constitutes, water-cooling block detachable connect in amplifier stage liquid cooling board upper surface, be provided with the optic fibre groove on the water-cooling block, water-cooling lid detachable connect in the water-cooling block be provided with the optic fibre groove on the surface, water-cooling lid and cooling water phase intercommunication, water-cooling block and cooling water phase intercommunication. The utility model discloses a high power fiber laser amplifier stage goes into removable heat exchange module radiating effect of fine point good, and it is convenient to dismantle.
Description
Technical Field
The utility model relates to a high power fiber laser water-cooling heat dissipation technical field especially relates to a high power fiber laser amplifier stage goes into removable heat exchange module of fine point.
Background
The high-power optical fiber laser is a novel laser developed in recent years, has the advantages of high conversion efficiency, good beam quality and the like, and is widely applied to the fields of industrial processing, scientific research and military. Currently, a single-mode all-fiber laser with power of 3kW or more often adopts a Main Oscillation Power Amplification (MOPA) structure form of seed source one-stage amplification, wherein the amplification stage often adopts a double-end pumping structure. The mode reduces the heat dissipation difficulty, and meanwhile, the laser power of the cascade pump can be further injected from the reverse direction, and the total amplification output power is improved.
The amplification stage liquid cooling plate is directly provided with an optical fiber groove, and a section of the optical fiber groove for placing the optical fiber fusion point is called an amplification stage fiber inlet point. The optical fiber at the optical fiber fusion point needs to be stripped off the protective shell, so that the optical fiber fusion point becomes a part with the maximum heat dissipation pressure, and the problem of the optical fiber fusion point being blown frequently occurs along with the increase of the output power. When the optical fiber fusion point is blown, laser is absorbed by the wall surface of the optical fiber groove, the temperature of the optical fiber groove is rapidly increased to 3000 ℃ at most, the temperature is far higher than the melting point of aluminum alloy, the optical fiber groove can be burnt, the whole amplification stage liquid cooling plate needs to be replaced during maintenance, and the maintenance cost and the maintenance time are increased.
Disclosure of Invention
In order to solve the problem, the utility model provides a high power fiber laser amplifier stage goes into removable heat exchange module of fine point, but goes into fine point heat exchange module and dismantle the change fast, and the amplifier stage goes into the heat dissipation of fine point department abundant.
In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:
a high power fiber laser amplification stage fiber inlet point replaceable heat exchange module comprises:
an amplification-stage liquid cooling plate;
go into fine some heat transfer module, by the water-cooling lid that has the cavity and the water-cooling block that has the cavity constitutes, water-cooling block detachable connect in amplifier stage liquid cooling board upper surface, be provided with the optic fibre groove on the water-cooling block, water-cooling lid detachable connect in the water-cooling block be provided with the optic fibre groove on the surface, water-cooling lid and cooling water phase intercommunication, water-cooling block and cooling water phase intercommunication.
Furthermore, a water cooling cover water inlet pipe and a water cooling cover water outlet pipe are connected to the water cooling cover;
the two ends of the water inlet pipe of the water-cooling cover are respectively connected with a first water inlet joint of the water-cooling cover and a second water inlet joint of the water-cooling cover, the first water inlet joint of the water-cooling cover is in threaded connection with the amplification-stage liquid-cooling plate, and the second water inlet joint of the water-cooling cover is in threaded connection with the water-cooling cover;
the water-cooling lid outlet pipe both ends are connected with first water-cooling lid water connectors and second water-cooling lid water connectors respectively, first water-cooling lid water connectors threaded connection in on the amplification level liquid cooling board, second water-cooling lid water connectors threaded connection in on the water-cooling lid.
Furthermore, a water cooling block water inlet pipe and a water cooling block water outlet pipe are connected to the water cooling block;
the two ends of the water inlet pipe of the water cooling block are respectively connected with a first water inlet joint of the water cooling block and a second water inlet joint of the water cooling block, the first water inlet joint of the water cooling block is in threaded connection with the water cooling block, and the second water inlet joint of the water cooling block is in threaded connection with the amplification stage liquid cooling plate;
the water cooling block water outlet pipe is characterized in that two ends of the water cooling block water outlet pipe are respectively connected with a first water cooling block water outlet joint and a second water cooling block water outlet joint, the first water cooling block water outlet joint is in threaded connection with the amplification stage liquid cooling plate, and the second water cooling block water outlet joint is in threaded connection with the water cooling block.
Further, the water cooling cover water inlet pipe and the water cooling cover water outlet pipe are connected to the upper surface of the amplification stage liquid cooling plate; the water cooling block water inlet pipe and the water cooling block water outlet pipe are connected to the lower surface of the amplification stage liquid cooling plate.
Furthermore, the amplification stage liquid cooling plate is provided with an annular optical fiber groove for accommodating optical fibers, the number of the optical fiber point heat exchange modules is two, one of the optical fiber point heat exchange modules is located in the annular optical fiber groove, and the other optical fiber point heat exchange module is located outside the annular optical fiber groove.
Further, the amplification stage liquid cooling plate is communicated with cooling water.
The utility model discloses a high power fiber laser amplifier level goes into removable heat exchange module of fine point has following beneficial effect:
1. the temperature of optical fiber splice point department can reach 3000 ℃ at most, the utility model discloses, through placing the optical fiber splice point in the optical fiber groove on water-cooling piece surface, and set up the water-cooling lid above the optical fiber groove to form the water-cooling heat dissipation of full parcel type to the optical fiber splice point, the radiating effect is good, and the radiating rate is fast.
2. The utility model has the advantages that the water cooling block is detachably connected on the amplification liquid cooling plate, the water cooling cover is detachably connected on the water cooling block, the water cooling block and the water cooling cover are detachably connected, and the maintenance and the replacement are rapid and convenient; the problem that in the prior art, when an optical fiber fusion point is blown, an optical fiber groove is burnt out, and the whole amplification stage liquid cooling plate needs to be replaced, so that cost and time are wasted is avoided.
3. The utility model discloses, amplifier stage liquid cooling board is used for cooling off optic fibre, goes into fine point heat transfer module and is used for cooling off optical fiber splice point, realizes the hierarchical cooling of optic fibre and optical fiber splice point, sets up rationally, realizes cooling optimization.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.
Fig. 1 is a schematic diagram of an upper surface structure of a high-power fiber laser amplification stage fiber inlet point replaceable heat exchange module according to an embodiment of the present invention;
fig. 2 is a schematic view of a lower surface structure of a high-power fiber laser amplification stage fiber inlet point replaceable heat exchange module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a water cooling block in a fiber inlet point heat exchange module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a water cooling block in another fiber inlet heat exchange module according to an embodiment of the present invention.
Description of reference numerals:
1-an amplification level liquid cooling plate; 11-ring-shaped fiber grooves; 2-a fiber inlet point heat exchange module; 21-water cooling cover; 22-water cooling block; 221-fiber grooves; 23-water cooling cover water inlet pipe; 231-first water-cooling cover water inlet joint; 232-a water inlet joint of a second water-cooling cover; 24-water cooling cover water outlet pipe; 241-a first water-cooling cover water outlet joint; 242-second water-cooled cover water outlet joint; 25-water cooling block water inlet pipe; 251-a first water cooling block water inlet joint; 252-a second water-cooling block water inlet joint; 26-a water outlet pipe of the water cooling block; 261-a first water cooling block water outlet joint; 262-water outlet joint of first water cooling block; 3-optical fiber.
Detailed Description
For better understanding the utility model discloses an aim, structure and function, below combine the figure, right the utility model discloses a removable heat exchange module of fine point is gone into to high power fiber laser amplifier stage does further detailed description.
Referring to fig. 1-4, the embodiment of the utility model provides a removable heat exchange module of high power fiber laser amplifier stage income fine point, include: the device comprises an amplification stage liquid cooling plate 1 and a fiber inlet point heat exchange module 2.
The fiber inlet point heat exchange module 2 is composed of a water cooling cover 21 with a cavity and a water cooling block 22 with a cavity, the water cooling block 22 is detachably connected to the upper surface of the amplification stage liquid cooling plate 1, an optical fiber groove 221 is formed in the water cooling block 22, the water cooling cover 21 is detachably connected to the surface, provided with the optical fiber groove 221, of the water cooling block 22, the water cooling cover 21 is communicated with cooling water, and the water cooling block 22 is communicated with the cooling water.
Furthermore, the temperature at the fusion point of the optical fiber can reach 3000 ℃ at most, and the fiber inlet point of the amplification stage can be burnt out. At present, aiming at the heat dissipation scheme of an amplification stage fiber inlet point, the most common method is to process an optical fiber groove on an amplification stage liquid cooling plate, place an optical fiber fusion point in the optical fiber groove, cool the optical fiber fusion point by introducing water into the amplification stage liquid cooling plate, burn out the optical fiber groove when the optical fiber fusion point is burnt out, need to replace the whole amplification stage liquid cooling plate during maintenance, and increase the maintenance cost while wasting time. The other heat dissipation scheme is that water is introduced into an optical fiber groove of the optical fiber feeding point to cool the optical fiber fusion welding point, a large number of sealing structures need to be added in the heat dissipation method, so that the processing cost is increased, and the cooling liquid can corrode the optical fiber fusion welding point along with the increase of the service time, so that potential safety hazards are caused.
Further, the utility model discloses place the optical fiber splice point of optic fibre in water-cooling block 22's optical fiber groove 221, water-cooling block 22 is gone up to fold and is gone up water-cooling lid 21, through leading to water-cooling lid 21 and water-cooling block 22, forms the full package formula cooling to the optical fiber splice point, and the cooling effect is good, and is fast. And the water cooling block 22 and the water cooling cover 21 are detachably connected, so that the replacement is convenient, and the waste of cost and time caused by replacing the amplification stage liquid cooling plate 1 is avoided.
Further, a water-cooling cover water inlet pipe 23 and a water-cooling cover water outlet pipe 24 are connected to the water-cooling cover 21.
Further low, water-cooling lid inlet tube 23 both ends are connected with first water-cooling lid water supply connector 231 and second water-cooling lid water supply connector 232 respectively, and first water-cooling lid water supply connector 231 threaded connection is on amplifier stage liquid cooling board 1, and second water-cooling lid water supply connector 232 threaded connection is on water-cooling lid 21. The two ends of the water outlet pipe 24 of the water-cooling cover are respectively connected with a first water-cooling cover water outlet joint 241 and a second water-cooling cover water outlet joint 242, the first water-cooling cover water outlet joint 241 is in threaded connection with the amplification stage liquid cooling plate 1, and the second water-cooling cover water outlet joint 242 is in threaded connection with the water-cooling cover 21.
Furthermore, cooling water enters the cavity of the water-cooling cover 21 through the water-cooling cover inlet pipe 23 to cool the optical fiber fusion point, and then flows out through the water-cooling cover outlet pipe 24.
Furthermore, the water-cooling block 22 is connected with a water-cooling block inlet pipe 25 and a water-cooling block outlet pipe 26.
Furthermore, two ends of the water inlet pipe 25 of the water cooling block are respectively connected with a first water inlet joint 251 and a second water inlet joint 252 of the water cooling block, the first water inlet joint 251 of the water cooling block is connected to the water cooling block 22 in a threaded manner, and the second water inlet joint 252 of the water cooling block is connected to the amplification stage liquid cooling plate 1 in a threaded manner; the two ends of the water-cooling block water outlet pipe 26 are respectively connected with a first water-cooling block water outlet joint 261 and a second water-cooling block water outlet joint 262, the first water-cooling block water outlet joint 261 is in threaded connection with the amplification stage liquid-cooling plate 1, and the second water-cooling block water outlet joint 262 is in threaded connection with the water-cooling block 22.
Furthermore, cooling water enters the cavity of the water cooling block 22 through the water cooling block water inlet pipe 25 to cool the optical fiber fusion point, and then flows out through the water cooling block water outlet pipe 26.
Further, referring to fig. 1 and fig. 2, a water-cooling cover water inlet pipe 23 and a water-cooling cover water outlet pipe 24 are connected to the upper surface of the amplification stage liquid-cooling plate 1; the water cooling block water inlet pipe 25 and the water cooling block water outlet pipe 26 are connected to the lower surface of the amplification stage liquid cooling plate 1.
Furthermore, an annular optical fiber groove 11 for accommodating the optical fiber 3 is formed in the amplification stage liquid cooling plate 1, and two fiber inlet point heat exchange modules 2 are provided, wherein one of the fiber inlet point heat exchange modules 2 is located in the annular optical fiber groove 11, and the other one of the fiber inlet point heat exchange modules 2 is located outside the annular optical fiber groove 11. The two fiber inlet point heat exchange modules 2 correspond to two optical fiber welding points at two ends of the optical fiber and are used for cooling the optical fiber welding points at the two ends of the optical fiber.
Further, the amplification stage liquid-cooled plate 1 is in communication with cooling water.
The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the embodiments described below, which would be obvious to those skilled in the art after reading this specification, are within the scope of the present invention.
Claims (6)
1. The utility model provides a removable heat exchange module of fine point is gone into to high power fiber laser amplifier stage which characterized in that includes:
an amplification-stage liquid cooling plate (1);
go into fine some heat exchange module (2), constitute by water-cooling piece (22) that have water-cooling lid (21) of cavity and have the cavity, water-cooling piece (22) detachable connect in the upper surface of amplifier stage liquid cooling board (1), be provided with optic fibre groove (221) on water-cooling piece (22), water-cooling lid (21) detachable connect in the water-cooling piece (22) be provided with optic fibre groove (221) on the surface, water-cooling lid (21) and cooling water phase intercommunication, water-cooling piece (22) and cooling water phase intercommunication.
2. The high-power fiber laser amplification stage fiber inlet point replaceable heat exchange module as claimed in claim 1, wherein a water-cooling cover water inlet pipe (23) and a water-cooling cover water outlet pipe (24) are connected to the water-cooling cover (21);
two ends of the water inlet pipe (23) of the water-cooling cover are respectively connected with a first water inlet joint (231) of the water-cooling cover and a second water inlet joint (232) of the water-cooling cover, the first water inlet joint (231) of the water-cooling cover is in threaded connection with the amplification stage liquid cooling plate (1), and the second water inlet joint (232) of the water-cooling cover is in threaded connection with the water-cooling cover (21);
the water-cooling lid outlet pipe (24) both ends are connected with first water-cooling lid water connectors (241) and second water-cooling lid water connectors (242) respectively, first water-cooling lid water connectors (241) threaded connection in on amplifying stage liquid cooling board (1), second water-cooling lid water connectors (242) threaded connection in on water-cooling lid (21).
3. The high-power fiber laser amplification stage fiber inlet point replaceable heat exchange module as claimed in claim 2, wherein a water cooling block water inlet pipe (25) and a water cooling block water outlet pipe (26) are connected to the water cooling block (22);
two ends of the water inlet pipe (25) of the water-cooling block are respectively connected with a first water inlet joint (251) of the water-cooling block and a second water inlet joint (252) of the water-cooling block, the first water inlet joint (251) of the water-cooling block is in threaded connection with the water-cooling block (22), and the second water inlet joint (252) of the water-cooling block is in threaded connection with the amplification-stage liquid-cooling plate (1);
water-cooling piece outlet pipe (26) both ends are connected with first water-cooling piece water connectors (261) and second water-cooling piece water connectors (262) respectively, first water-cooling piece water connectors (261) threaded connection in on amplifying level liquid cooling board (1), second water-cooling piece water connectors (262) threaded connection in on water-cooling piece (22).
4. The high-power fiber laser amplifier stage fiber inlet point replaceable heat exchange module as claimed in claim 3, wherein the water-cooling cover water inlet pipe (23) and the water-cooling cover water outlet pipe (24) are connected to the upper surface of the amplifier stage liquid cooling plate (1); the water cooling block water inlet pipe (25) and the water cooling block water outlet pipe (26) are connected to the lower surface of the amplification stage liquid cooling plate (1).
5. The high-power fiber laser amplification stage fiber inlet point replaceable heat exchange module according to claim 4, wherein the amplification stage liquid cooling plate (1) is provided with an annular fiber groove (11) for accommodating the optical fiber (3), and the number of the fiber inlet point heat exchange modules (2) is two, wherein one of the fiber inlet point heat exchange modules (2) is located in the annular fiber groove (11), and the other fiber inlet point heat exchange module (2) is located outside the annular fiber groove (11).
6. The high-power fiber laser amplifier stage fiber inlet point replaceable heat exchange module as claimed in claim 5, wherein the amplifier stage liquid cooling plate (1) is communicated with cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023278842.3U CN213717239U (en) | 2020-12-29 | 2020-12-29 | Replaceable heat exchange module for amplification stage fiber inlet point of high-power fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023278842.3U CN213717239U (en) | 2020-12-29 | 2020-12-29 | Replaceable heat exchange module for amplification stage fiber inlet point of high-power fiber laser |
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| Publication Number | Publication Date |
|---|---|
| CN213717239U true CN213717239U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023278842.3U Active CN213717239U (en) | 2020-12-29 | 2020-12-29 | Replaceable heat exchange module for amplification stage fiber inlet point of high-power fiber laser |
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| Country | Link |
|---|---|
| CN (1) | CN213717239U (en) |
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- 2020-12-29 CN CN202023278842.3U patent/CN213717239U/en active Active
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