CN222214782U - Gain optic fibre liquid cooling heat abstractor - Google Patents
Gain optic fibre liquid cooling heat abstractor Download PDFInfo
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- CN222214782U CN222214782U CN202323507114.9U CN202323507114U CN222214782U CN 222214782 U CN222214782 U CN 222214782U CN 202323507114 U CN202323507114 U CN 202323507114U CN 222214782 U CN222214782 U CN 222214782U
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- 239000007788 liquid Substances 0.000 title claims abstract description 45
- 238000001816 cooling Methods 0.000 title claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 106
- 239000013307 optical fiber Substances 0.000 claims abstract description 75
- 239000000110 cooling liquid Substances 0.000 claims abstract description 35
- 230000017525 heat dissipation Effects 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims description 100
- 239000003292 glue Substances 0.000 claims description 74
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 239000000853 adhesive Substances 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 13
- 239000000565 sealant Substances 0.000 claims description 10
- 239000012945 sealing adhesive Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
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- 230000004927 fusion Effects 0.000 abstract description 18
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 18
- 230000009471 action Effects 0.000 description 5
- 239000002826 coolant Substances 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
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- 229910052761 rare earth metal Inorganic materials 0.000 description 1
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Abstract
本申请提出一种增益光纤液冷散热装置，包括壳体、入纤组件和出纤组件，壳体内具有用于容纳冷却液的容纳腔，容纳腔内设有柱体，柱体安装在壳体的底部，柱体上盘绕有增益光纤；入纤组件和出纤组件均设置在壳体的侧壁上，并与容纳腔连通，增益光纤的入纤熔接段位于入纤组件内，增益光纤的出纤熔接段位于出纤组件内；入纤组件内设有第一导热密封部，通过第一导热密封部对入纤熔接段进行密封和导热，出纤组件内设有第二导热密封部，通过第二导热密封部对出纤熔接段进行密封和导热。从而在避免入纤熔接段、出纤熔接段直接与冷却液接触的同时提高增益光纤的散热效率，防止增益光纤温度过高使激光器失效和性能下降。
The present application proposes a gain optical fiber liquid cooling device, including a housing, a fiber input assembly and a fiber output assembly. The housing has a receiving cavity for receiving cooling liquid, a column is provided in the receiving cavity, the column is installed at the bottom of the housing, and a gain optical fiber is coiled on the column; the fiber input assembly and the fiber output assembly are both arranged on the side wall of the housing and communicated with the receiving cavity, the fiber input fusion section of the gain optical fiber is located in the fiber input assembly, and the fiber output fusion section of the gain optical fiber is located in the fiber output assembly; a first heat-conducting sealing part is provided in the fiber input assembly, and the fiber input fusion section is sealed and heat-conducted by the first heat-conducting sealing part; a second heat-conducting sealing part is provided in the fiber output assembly, and the fiber output fusion section is sealed and heat-conducted by the second heat-conducting sealing part. Thus, the heat dissipation efficiency of the gain optical fiber is improved while avoiding the direct contact between the fiber input fusion section and the fiber output fusion section and the cooling liquid, and preventing the over-high temperature of the gain optical fiber from causing the laser to fail and the performance to decline.
Description
Technical Field
The application belongs to the technical field of fiber lasers, and particularly relates to a gain fiber liquid cooling heat dissipation device.
Background
The fiber laser uses rare earth element doped glass fiber as gain medium, has the advantages of high conversion efficiency, good beam quality, compact structure and high reliability, and can be widely used in the fields of optical communication, industrial manufacture, national defense safety, medical appliances, etc.
With the continuous increase of the output power level of the fiber laser, the heat dissipation problem has become a constraint factor for further increasing the output power of the fiber laser, and the heat dissipation treatment of the gain fiber is particularly important. If the temperature of the gain fiber is too high, the quantum efficiency is reduced, the refractive index of the matrix material is changed, and the thermal lens effect and the like are caused, which affect the output power and the beam quality of the fiber laser, and even the condition that the gain fiber is fused may occur. Therefore, how to cool the gain fiber quickly and efficiently is important to improve the performance and stability of the fiber laser.
The existing gain optical fiber cooling device generally adopts an indirect contact conduction cooling mode to dissipate heat, the gain optical fiber is coiled on the surface of a cooling plate or a cylinder, a large amount of heat conducting glue is used for packaging, heat is transferred to the cooling plate or the cylinder through the heat conducting glue, and then the heat is taken away by a cooling medium (such as cooling liquid, air and the like). The heat exchange speed is low, and heat cannot be timely dissipated, so that the optical fiber laser can not work normally.
Aiming at the problems, the Chinese patent with the patent number of CN202122106347.2 discloses that the gain optical fiber is packaged in the liquid cooling pipe, so that the gain optical fiber is in direct contact with cooling liquid, the cooling liquid keeps flowing to take away the heat of the gain optical fiber, and the efficient heat dissipation is realized. However, in practical manufacturing, the gain fiber has a length of several meters to several tens of meters, and it is required to coil the gain fiber into a closed loop structure having a diameter of several centimeters to several tens of centimeters in order to control the output efficiency and the beam quality. If the device disclosed in the patent is used for cooling the gain optical fiber, a long liquid cooling pipe is needed, the integrated installation is inconvenient, the liquid cooling pipe made of stainless steel is difficult to coil into a closed loop structure with a small diameter, and the feasibility is low.
Disclosure of utility model
In view of this, the application provides a gain fiber liquid cooling heat dissipation device, which enables gain fiber to be in direct contact with cooling liquid for heat dissipation, and the fiber inlet welding section and the fiber outlet welding section are in indirect heat exchange with the cooling liquid, so that the heat dissipation efficiency is improved, and meanwhile, the fiber inlet welding section and the fiber outlet welding section are prevented from being in direct contact with the cooling liquid, and the integration is convenient.
The gain optical fiber liquid cooling heat dissipation device comprises a shell, an optical fiber inlet assembly and an optical fiber outlet assembly, wherein an accommodating cavity for accommodating cooling liquid is formed in the shell, a cylinder is arranged in the accommodating cavity and is installed at the bottom of the shell, and gain optical fibers are coiled on the cylinder;
The fiber inlet assembly and the fiber outlet assembly are arranged on the side wall of the shell and are communicated with the accommodating cavity, the fiber inlet welding section of the gain fiber is positioned in the fiber inlet assembly, and the fiber outlet welding section of the gain fiber is positioned in the fiber outlet assembly;
The fiber inlet assembly is internally provided with a first heat conduction sealing part, the fiber inlet welding section is sealed and conducts heat through the first heat conduction sealing part, the fiber outlet assembly is internally provided with a second heat conduction sealing part, and the fiber outlet welding section is sealed and conducts heat through the second heat conduction sealing part.
Preferably, the first heat-conducting sealing part comprises first heat-conducting glue filled at the periphery of the fiber-entering welding section and wrapping the fiber-entering welding section and first sealing glue filled at two ends of the fiber-entering welding section, and the first sealing glue is located at the outer side of the first heat-conducting glue.
Preferably, the fiber inlet assembly comprises a fiber inlet pipe and a first connecting piece, wherein the fiber inlet pipe is arranged on the side wall of the shell through the first connecting piece and is communicated with the accommodating cavity;
The fiber inlet welding section, the first heat-conducting glue and the first sealant are all positioned in the fiber inlet pipe.
Preferably, the fiber inlet pipe is provided with a first glue injection port, the first heat-conducting glue is filled into the fiber inlet pipe through the first glue injection port, and/or,
The fiber inlet sealing groove is formed in the first connecting piece, and sealing strips are arranged in the fiber inlet sealing groove and are abutted to the side wall of the shell when the fiber inlet pipe is installed on the side wall of the shell through the first connecting piece.
Preferably, the second heat conduction sealing part comprises second heat conduction glue filled at the periphery of the fiber outlet welding section and coating the fiber outlet welding section and second sealing glue filled at two ends of the fiber outlet welding section, and the second sealing glue is positioned at the outer side of the second heat conduction glue.
Preferably, the fiber outlet assembly comprises a fiber outlet pipe and a second connecting piece, wherein the fiber outlet pipe is arranged on the side wall of the shell through the second connecting piece and is communicated with the accommodating cavity;
The fiber outlet welding section, the second heat-conducting glue and the second sealant are all positioned in the fiber outlet pipe.
Preferably, a second glue injection port is arranged on the fiber outlet pipe, and the second heat-conducting glue is filled into the fiber outlet pipe through the second glue injection port, and/or,
The second connecting piece is provided with a fiber outlet sealing groove, a sealing strip is arranged in the fiber outlet sealing groove, and when the fiber outlet pipe is arranged on the side wall of the shell through the second connecting piece, the sealing strip in the fiber outlet sealing groove is abutted to the side wall of the shell.
Preferably, a cover plate is mounted on top of the housing.
Preferably, a sealing groove is formed in the top of the shell, and a sealing strip is arranged in the sealing groove and abuts against the bottom of the cover plate when the cover plate is mounted on the top of the shell.
Preferably, the side wall of the shell is provided with a liquid inlet and a liquid outlet.
The beneficial effects of the application are as follows: through coiling gain fiber on the cylinder of placing in holding the intracavity to pour into the coolant liquid into to holding the intracavity, make gain fiber and coolant liquid direct contact heat dissipation, simultaneously with go into fine butt fusion section and go out fine butt fusion section and accomodate respectively in into fine subassembly and play fine subassembly, and seal and heat conduction to going into fine butt fusion section and play fine butt fusion section respectively through first heat conduction sealing part and second heat conduction sealing part, make into fine butt fusion section and play fine butt fusion section and coolant liquid indirect heat transfer, can avoid going into fine butt fusion section, go out fine butt fusion section and improve gain fiber's radiating efficiency when directly contacting with the coolant liquid, thereby avoid going into fine butt fusion section, go out fine butt fusion section and gain fiber's high temperature and lead to laser failure and performance decline, and can guarantee that gain fiber coiled closed loop structure has suitable bending diameter, thereby keep higher conversion efficiency and better light beam quality, and its simple structure, be convenient for integrate.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings required for the description of the embodiments or the prior art will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present application, and other drawings may be obtained according to the provided drawings without inventive effort to those skilled in the art.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are therefore not intended to limit the scope of the application, which is defined by the claims, but are not to be construed as limiting the scope of the application.
FIG. 1 is a perspective view of a gain fiber liquid cooled heat sink;
FIG. 2 is a front perspective view of a gain fiber liquid cooled heat sink;
FIG. 3 is a top view of a gain fiber liquid cooled heat sink;
FIG. 4 is a side view of a housing of the gain fiber liquid cooled heat sink;
FIG. 5 is a block diagram of a fiber inlet assembly of a gain fiber liquid cooled heat sink;
FIG. 6 is a longitudinal cross-sectional view of the fiber optic assembly of FIG. 5;
FIG. 7 is a block diagram of a fiber outlet assembly of the gain fiber liquid cooling heat sink;
Fig. 8 is a longitudinal cross-sectional view of the fiber optic assembly of fig. 7.
In the drawing, the optical fiber gain-increasing device comprises a 1-shell, a 11-accommodating cavity, a 12-liquid inlet, a 13-liquid outlet, a 14-first connecting hole, a 15-fiber inlet through hole, a 16-second connecting hole, a 17-fiber outlet through hole, a 18-third connecting hole, a 19-fourth connecting hole, a 2-fiber inlet component, a 21-first heat conduction sealing part, a 211-first heat conduction adhesive, a 212-first sealing adhesive, a 22-fiber inlet pipe, a 221-first glue injection hole, a 23-first connecting piece, a 231-second flange plate, a 232-fifth connecting hole, a 233-fiber inlet sealing groove, a 3-fiber outlet component, a 31-second heat conduction sealing part, a 311-second heat conduction adhesive, a 312-second sealing adhesive, a 32-fiber outlet pipe, a 321-second glue injection hole, a 33-second connecting piece, a 331-third flange plate, a 332-sixth connecting hole, a 333-fiber outlet sealing groove, a 4-column body, a 41-fiber winding column, a 42-first flange plate, a 421-seventh connecting hole, a 5-fiber inlet sealing groove, a 3-fiber outlet sealing groove, a 31-second heat conduction sealing part, a 31-second fiber inlet sealing part, a 8-second fiber inlet sealing groove and an eighth section, and a movable optical fiber gain-increasing device.
Detailed Description
Embodiments of the present application will now be described more fully hereinafter with reference to the accompanying drawings, in which it is shown, however, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1-8, the application provides a gain optical fiber liquid cooling heat dissipation device, which comprises a shell 1, a fiber inlet component 2 and a fiber outlet component 3, wherein a containing cavity 11 for containing cooling liquid is formed in the shell 1, a column body 4 is arranged in the containing cavity 11, the column body 4 is arranged at the bottom of the shell 1, and a gain optical fiber 5 is coiled on the column body 4;
The fiber inlet assembly 2 and the fiber outlet assembly 3 are arranged on the side wall of the shell 1 and are communicated with the accommodating cavity 11, the fiber inlet welding section 51 of the gain optical fiber 5 is positioned in the fiber inlet assembly 2, and the fiber outlet welding section 52 of the gain optical fiber 5 is positioned in the fiber outlet assembly 3;
The fiber inlet assembly 2 is internally provided with a first heat conduction sealing part 21, the fiber inlet welding section 51 is sealed and conducts heat through the first heat conduction sealing part 21, the fiber outlet assembly 3 is internally provided with a second heat conduction sealing part 31, and the fiber outlet welding section 52 is sealed and conducts heat through the second heat conduction sealing part 31.
According to the utility model, the gain optical fiber 5 is coiled on the column body 4, and the shape and the size of the column body 4 are designed, so that the gain optical fiber 5 can be coiled into a required closed-loop structure, and the required bending diameter is obtained, thereby obtaining higher conversion efficiency and better beam quality. Meanwhile, the gain optical fiber 5 is directly contacted with the cooling liquid in the accommodating cavity 11, so that the heat dissipation speed of the gain optical fiber 5 can be increased, the heat dissipation efficiency of the gain optical fiber 5 is improved, the fiber inlet welding section 51 and the fiber outlet welding section 52 are respectively sealed and thermally conductive by the first thermal conductive sealing part 21 and the second thermal conductive sealing part 31, the fiber inlet welding section 51 and the fiber outlet welding section 52 can be prevented from being directly contacted with the cooling liquid, and the fiber inlet welding section 51 and the fiber outlet welding section 52 can be dissipated by indirect heat exchange, so that the laser failure and performance reduction caused by overhigh temperature of the fiber inlet welding section 51, the fiber outlet welding section 52 and the gain optical fiber 5 are avoided.
It will be understood that, referring to fig. 6 and 8, the fiber-in fusion section 51 is a portion where the gain fiber 5 and the first passive fiber 8 are fused together, and the fiber-out fusion section 52 is a portion where the gain fiber 5 and the second passive fiber 9 are fused together. Because the fiber inlet welding section 51 and the fiber outlet welding section 52 are bare optical fibers, and the outside of the fiber inlet welding section 51 and the fiber outlet welding section 52 are not coated with coating layers, waterproof treatment is needed to avoid direct contact between the fiber inlet welding section 51 and the fiber outlet welding section 52 and cooling liquid, the fiber inlet welding section 51 is sealed in the fiber inlet assembly 2 by the first heat conduction sealing part 21, the fiber outlet welding section 52 is sealed in the fiber outlet assembly 3 by the second heat conduction sealing part 31, so that the direct contact between the fiber inlet welding section 51 and the fiber outlet welding section 52 and the cooling liquid can be effectively avoided, and heat is exchanged with the cooling liquid in an indirect heat exchange mode, so that the fiber inlet welding section 51 and the fiber outlet welding section 52 dissipate heat.
As shown in fig. 2, the column 4 includes a winding column 41 and a first flange 42, the winding column 41 is mounted on the first flange 42, the gain fiber 5 is wound around the winding column 41 to form a multi-turn closed-loop structure, and the shape and the bending diameter of the closed-loop structure around which the gain fiber 5 is wound are controlled by designing the shape and the size of the winding column 41.
As shown in fig. 2-3, a plurality of seventh connecting holes 421 are formed in the first flange 42, a plurality of first connecting holes 14 corresponding to the seventh connecting holes 421 one by one are formed in the bottom of the housing 1, and screws are inserted into each of the seventh connecting holes 421 and the corresponding first connecting holes 14, and the first flange 42 is fixedly mounted on the bottom of the housing 1 through the screws, so that the fiber winding column 41 is mounted on the bottom of the housing 1.
As shown in fig. 6, the first heat-conducting sealing part 21 includes a first heat-conducting glue 211 filled around the fiber-entering welding section 51 and covering the fiber-entering welding section 51, and a first sealing glue 212 filled at both ends of the fiber-entering welding section 51, wherein the first sealing glue 212 is located outside the first heat-conducting glue 211.
The fiber-entering welding section 51 exchanges heat with the cooling liquid in the accommodating cavity 11 through the first heat-conducting adhesive 211, and the first heat-conducting adhesive 211 can also play a role in water resistance, so that the fiber-entering welding section 51 is prevented from being in direct contact with the cooling liquid. The two ends of the fiber-in welding section 51 are also filled with first sealing glue 212, the first sealing glue 212 is filled on the outer side of the first heat-conducting glue 211, namely, the first sealing glue 212 is used as a first waterproof barrier, and the first heat-conducting glue 211 is used as a second waterproof barrier.
As shown in fig. 5 to 6, the fiber inlet assembly 2 comprises a fiber inlet pipe 22 and a first connecting piece 23, wherein the fiber inlet pipe 22 is arranged on the side wall of the shell 1 through the first connecting piece 23 and is communicated with the accommodating cavity 11;
The fiber-entering welding section 51, the first heat-conducting glue 211 and the first sealant 212 are all located in the fiber-entering pipe 22.
The first connecting piece 23 is provided with a fiber inlet sealing groove 233, a sealing strip is arranged in the fiber inlet sealing groove 233, and when the fiber inlet pipe 22 is installed on the side wall of the shell 1 through the first connecting piece 23, the sealing strip in the fiber inlet sealing groove 233 is abutted to the side wall of the shell 1, so that the accommodating cavity 11 is sealed, and leakage of cooling liquid is prevented.
The first connecting piece 23 includes a second flange 231, the fiber-entering seal groove 233 is formed on one side of the second flange 231 near the housing 1, and a plurality of fifth connecting holes 232 are formed on the second flange 231.
Referring to fig. 4, a fiber inlet through hole 15 and a plurality of second connecting holes 16 corresponding to the fifth connecting holes 232 one by one are formed in one side wall of the housing 1, the second connecting holes 16 are arranged around the fiber inlet through hole 15, screws are inserted into each of the fifth connecting holes 232 and the corresponding second connecting holes 16, a second flange 231 is mounted on the side wall of the housing 1 through the screws, when the second flange 231 is mounted on the side wall of the housing 1, a sealing strip in the fiber inlet sealing groove 233 is abutted against the side wall of the housing 1, one end of the fiber inlet pipe 22 penetrates through the second flange 231, and the other end penetrates through the fiber inlet through hole 15 and stretches into the accommodating cavity 11.
The gain optical fiber 5 is uniformly coiled on the fiber winding column 41, a certain length for welding is reserved at two ends of the gain optical fiber 5, then the two ends of the gain optical fiber 5 are respectively welded with the first passive optical fiber 8 and the second passive optical fiber 9, and then the coiling of the gain optical fiber 5 along the fiber winding column 41 is continued until the first passive optical fiber 8 passes through one end of the fiber inlet pipe 22 positioned in the accommodating cavity 11, and the fiber inlet welding section 51 just positioned in the fiber inlet pipe 22 after passing out from the other end of the fiber inlet pipe 22.
With continued reference to fig. 5-6, the fiber inlet pipe 22 is provided with a first glue injection port 221, and the first heat-conducting glue 211 is filled into the fiber inlet pipe 22 through the first glue injection port 221.
After the fiber-entering welding section 51 is just placed in the fiber-entering pipe 22, first sealing glue 212 is injected into two ends of the fiber-entering pipe 22, two ends of the fiber-entering pipe 22 are sealed through the first sealing glue 212, then first heat-conducting glue 211 is injected into the fiber-entering pipe 22 through a first glue injection opening 221, so that the space between the fiber-entering welding section 51 and the fiber-entering pipe 22 is filled with the first heat-conducting glue 211, the fiber-entering welding section 51 is further waterproof, and meanwhile, the heat conduction function is achieved, namely under the action of the first heat-conducting glue 211, the heat of the fiber-entering welding section 51 and the gain optical fibers 5 in the fiber-entering pipe 22 is transferred to cooling liquid in the accommodating cavity 11 through the first heat-conducting glue 211, and meanwhile the cooling liquid transfers the cooling capacity of the cooling liquid to the fiber-entering welding section 51 and the gain optical fibers 5 in the fiber-entering pipe 22 through the first heat-conducting glue 211, so that the fiber-entering welding section 51 and the gain optical fibers 5 in the fiber-entering pipe 22 are radiated.
As shown in fig. 8, the second heat-conducting sealing part 31 includes a second heat-conducting glue 311 filled in the outer periphery of the fiber-outputting welding section 52 and covering the fiber-outputting welding section 52, and a second sealing glue 312 filled in both ends of the fiber-outputting welding section 52, wherein the second sealing glue 312 is located outside the second heat-conducting glue 311.
The fiber-outlet welding section 52 exchanges heat with the cooling liquid in the accommodating cavity 11 through the second heat-conducting glue 311, and the second heat-conducting glue 311 can also play a role in water resistance, so that the fiber-outlet welding section 52 is prevented from being in direct contact with the cooling liquid. The two ends of the fiber-outputting welding section 52 are also filled with second sealing glue 312, the second sealing glue 312 is filled at the outer side of the second heat-conducting glue 311, that is, the second sealing glue 312 is used as a first waterproof barrier, and the second heat-conducting glue 311 is used as a second waterproof barrier.
As shown in fig. 7 to 8, the fiber-discharging assembly 3 includes a fiber-discharging tube 32 and a second connecting member 33, and the fiber-discharging tube 32 is mounted on the sidewall of the housing 1 through the second connecting member 33 and communicates with the accommodating chamber 11;
The fiber-outputting fusion-bonding section 52, the second heat-conducting glue 311 and the second sealant 312 are all located in the fiber-outputting tube 32.
The second connector 33 is provided with a fiber outlet sealing groove 333, a sealing strip is arranged in the fiber outlet sealing groove 333, and when the fiber outlet pipe 32 is mounted on the side wall of the housing 1 through the second connector 33, the sealing strip in the fiber outlet sealing groove 333 abuts against the side wall of the housing 1, so that the accommodating cavity 11 is sealed, and leakage of cooling liquid is prevented.
The second connecting piece 33 includes a third flange 331, and a plurality of sixth connecting holes 332 are formed in the third flange 331.
Referring to fig. 4, one side wall of the housing 1 is provided with a fiber outlet through hole 17 and a plurality of third connecting holes 18 corresponding to the sixth connecting holes 332 one by one, the third connecting holes 18 are arranged around the fiber outlet through hole 17, and preferably, the fiber inlet through hole 15, the second connecting holes 16, the fiber outlet through hole 17 and the third connecting holes 18 are all formed on the same side wall of the housing 1.
Each sixth connecting hole 332 and the corresponding third connecting hole 18 are inserted with a screw, the third flange 331 is mounted on the side wall of the shell 1 by the screw, when the third flange 331 is mounted on the side wall of the shell 1, the sealing strip in the fiber outlet sealing groove 333 abuts against the side wall of the shell 1, one end of the fiber outlet pipe 32 penetrates through the third flange 331, and the other end penetrates through the fiber outlet through hole 17 and stretches into the accommodating cavity 11.
The gain optical fiber 5 is uniformly coiled on the fiber winding column 41, a certain length for welding is reserved at the two ends of the gain optical fiber 5, then the two ends of the gain optical fiber 5 are respectively welded with the first passive optical fiber 8 and the second passive optical fiber 9, the gain optical fiber 5 is coiled continuously along the fiber winding column 41 until the second passive optical fiber 9 passes through one end of the fiber outlet tube 32 positioned in the accommodating cavity 11, the fiber outlet welding section 52 is just positioned in the fiber outlet tube 32 after passing through the other end of the fiber outlet tube 32, and the fiber inlet welding section 51 is just positioned in the fiber inlet tube 22.
With continued reference to fig. 7-8, the fiber outlet pipe 32 is provided with a second glue injection port 321, and the second heat-conducting glue 311 is filled into the fiber outlet pipe 32 through the second glue injection port 321.
When the fiber outlet welding section 52 is just positioned in the fiber outlet pipe 32, the second sealant 312 is injected to the two ends of the fiber outlet pipe 32, the two ends of the fiber outlet pipe 32 are sealed through the second sealant 312, and then the second heat-conducting glue 311 is injected into the fiber outlet pipe 32 through the second glue injection port 321, so that the second heat-conducting glue 311 is filled between the fiber outlet welding section 52 and the fiber outlet pipe 32, the fiber outlet welding section 52 is further waterproof, and meanwhile, the heat conduction function is achieved, namely, under the action of the second heat-conducting glue 311, the fiber outlet welding section 52, the gain optical fibers 5 positioned in the fiber outlet pipe 32 and the cooling liquid in the accommodating cavity 11 exchange heat, so that the fiber outlet welding section 52 and the gain optical fibers 5 positioned in the fiber outlet pipe 32 are radiated.
As shown in fig. 1-2, the top of the housing 1 is provided with a cover plate 6, the top of the housing 1 is provided with a sealing groove 7, a sealing strip is arranged in the sealing groove 7, and when the cover plate 6 is mounted on the top of the housing 1, the sealing strip in the sealing groove 7 abuts against the bottom of the cover plate 6.
A plurality of eighth connecting holes 61 are formed in the cover plate 6, a plurality of fourth connecting holes 19 corresponding to the eighth connecting holes 61 one by one are formed in the top of the shell 1, screws are inserted into each eighth connecting hole 61 and the fourth connecting holes 19 corresponding to the eighth connecting holes 61, the cover plate 6 is fixedly mounted on the top of the shell 1 through the screws, the accommodating cavity 11 in the shell 1 forms a sealing space, the sealing effect of the cover plate 6 and the shell 1 is better through sealing strips in the sealing groove 7, and leakage of cooling liquid is prevented.
As shown in fig. 1, the side wall of the housing 1 is provided with a liquid inlet 12 and a liquid outlet 13.
In this embodiment, the gain fiber liquid cooling heat dissipation device further includes a cooling device (not shown in the figure), the liquid inlet 12 and the liquid outlet 13 are both communicated with the cooling device, the cooling liquid is cooled by the cooling device, the low-temperature cooling liquid is conveyed into the accommodating cavity 11 through the liquid inlet 12, then directly contacts the gain fiber 5 to absorb heat generated by the gain fiber 5, and indirectly contacts the fiber inlet welding section 51, the fiber outlet welding section 52, the gain fiber 5 positioned in the fiber inlet pipe 22 and the gain fiber 5 positioned in the fiber outlet pipe 32, the first heat-conducting glue 211 and the second heat-conducting glue 311 absorb heat generated by the fiber inlet welding section 51, the fiber outlet welding section 52, the gain fiber 5 positioned in the fiber inlet pipe 22 and the gain fiber 5 positioned in the fiber outlet pipe 32, and exchange heat with the cooling liquid in the accommodating cavity 11, and then the cooling liquid heated in the accommodating cavity 11 is conveyed into the cooling device through the liquid outlet 13 to cool, so that the cooling liquid continuously circulates in the cooling device and the accommodating cavity 11.
In this embodiment, the gain optical fiber 5 is uniformly coiled on the fiber winding column 41, a certain length for welding is reserved at two ends of the gain optical fiber 5, at this time, the gain optical fiber 5 can be temporarily fixed on the fiber winding column 41 by using an adhesive tape, then the light-in end of the gain optical fiber 5 and the first passive optical fiber 8 are welded together to form a fiber-in welding section 51, the light-out end of the gain optical fiber 5 and the second passive optical fiber 9 are welded together to form a fiber-out welding section 52, the adhesive tape is removed, then the gain optical fiber 5 continues to be coiled along the fiber winding column 41 until the first passive optical fiber 8 is just positioned in the fiber-in welding section 51 after passing out from the fiber-in pipe 22, the second passive optical fiber 9 is just positioned in the fiber-out welding section 52 after passing out from the fiber-out pipe 32, and then the fiber winding column 41 is mounted at the bottom of the casing 1 by using the first flange 42;
In the process of pulling the first passive optical fiber 8 and the second passive optical fiber 9 out of the accommodating cavity 11, the first passive optical fiber 8 and the second passive optical fiber 9 can be pulled out of the accommodating cavity 11 through the fiber inlet pipe 22 and the fiber outlet pipe 32 after the fiber inlet pipe 22 and the fiber outlet pipe 32 are inserted into the accommodating cavity 11, or the first passive optical fiber 8 and the second passive optical fiber 9 can be pulled out of the accommodating cavity 11 through the fiber inlet pipe 22 and the fiber outlet pipe 32 after the fiber inlet pipe 22 and the fiber outlet pipe 32 are inserted into the accommodating cavity 11, namely, the fiber collecting device is fixedly arranged on the side wall of the shell 1;
Then, sealing the two ends of the fiber inlet pipe 22 by using a first sealant 212, sealing the two ends of the fiber outlet pipe 32 by using a second sealant 312, then injecting a first heat-conducting adhesive 211 into the fiber inlet pipe 22 through a first adhesive injection port 221, injecting a second heat-conducting adhesive 311 into the fiber outlet pipe 32 through a second adhesive injection port 321, and filling the first heat-conducting adhesive 211 around the fiber inlet welding section 51 and the second heat-conducting adhesive 311 around the fiber outlet welding section 52;
Then the cover plate 6 is arranged at the top of the shell 1, so that a closed space is formed in the accommodating cavity 11, cooling liquid in the cooling device is conveyed into the accommodating cavity 11 through the liquid inlet 12 to cool the gain optical fiber 5, and the cooling liquid after the temperature rise in the accommodating cavity 11 is conveyed into the cooling device through the liquid outlet 13.
Of course, the winding post 41 may be installed at the bottom of the housing 1, and then the gain fiber 5 may be wound around the winding post 41, which is not limited in the present application, as long as the gain fiber 5 can be wound around the winding post 41, and the fiber-in welding section 51 and the fiber-out welding section 52 are located in the fiber-in tube 22 and the fiber-out tube 32, respectively.
The application combines direct contact heat exchange and indirect contact heat exchange to radiate the gain optical fiber 5, the fiber inlet welding section 51 and the fiber outlet welding section 52, can improve the radiating efficiency of the gain optical fiber 5 while avoiding direct contact of the fiber inlet welding section 51 and the fiber outlet welding section 52 with cooling liquid, thereby avoiding laser failure and performance reduction caused by overhigh temperature of the gain optical fiber 5, the fiber inlet welding section 51 and the fiber outlet welding section 52, and in addition, the application winds the gain optical fiber 5 on a fiber winding column 41, can ensure that a closed loop structure wound by the gain optical fiber 5 has proper bending diameter, thereby obtaining higher conversion efficiency and better beam quality and being convenient for integration.
In the present specification, each embodiment is described in a progressive manner, or a parallel manner, or a combination of progressive and parallel manners, and each embodiment is mainly described as a difference from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
It should be noted that, in the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of additional like elements in an article or apparatus that comprises such an element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The gain optical fiber liquid cooling heat dissipation device is characterized by comprising a shell (1), an optical fiber inlet component (2) and an optical fiber outlet component (3), wherein a containing cavity (11) for containing cooling liquid is formed in the shell (1), a column body (4) is arranged in the containing cavity (11), the column body (4) is arranged at the bottom of the shell (1), and a gain optical fiber (5) is coiled on the column body (4);
The fiber inlet assembly (2) and the fiber outlet assembly (3) are arranged on the side wall of the shell (1) and are communicated with the accommodating cavity (11), a fiber inlet welding section (51) of the gain fiber (5) is positioned in the fiber inlet assembly (2), and a fiber outlet welding section (52) of the gain fiber (5) is positioned in the fiber outlet assembly (3);
the fiber inlet assembly (2) is internally provided with a first heat conduction sealing part (21), the fiber inlet welding section (51) is sealed and conducts heat through the first heat conduction sealing part (21), the fiber outlet assembly (3) is internally provided with a second heat conduction sealing part (31), and the fiber outlet welding section (52) is sealed and conducts heat through the second heat conduction sealing part (31).
2. The gain fiber liquid cooling heat dissipating device according to claim 1, wherein the first heat conducting sealing part (21) comprises a first heat conducting adhesive (211) filled at the periphery of the fiber inlet welding section (51) and coating the fiber inlet welding section (51) and a first sealing adhesive (212) filled at two ends of the fiber inlet welding section (51), and the first sealing adhesive (212) is located at the outer side of the first heat conducting adhesive (211).
3. A gain fiber liquid cooled heat sink according to claim 2, characterized in that the fiber inlet assembly (2) comprises a fiber inlet pipe (22) and a first connector (23), the fiber inlet pipe (22) being mounted on the side wall of the housing (1) through the first connector (23) and communicating with the accommodation chamber (11);
The fiber inlet welding section (51), the first heat-conducting adhesive (211) and the first sealant (212) are all positioned in the fiber inlet pipe (22).
4. The liquid cooling heat dissipating device for gain fiber according to claim 3, wherein the fiber inlet pipe (22) is provided with a first glue injection port (221), the first heat conductive glue (211) is filled into the fiber inlet pipe (22) through the first glue injection port (221), and/or,
The fiber inlet sealing groove (233) is formed in the first connecting piece (23), sealing strips are arranged in the fiber inlet sealing groove (233), and when the fiber inlet pipe (22) is installed on the side wall of the shell (1) through the first connecting piece (23), the sealing strips in the fiber inlet sealing groove (233) are abutted to the side wall of the shell (1).
5. The gain fiber liquid cooling heat dissipating device according to claim 1, wherein the second heat conducting sealing part (31) comprises a second heat conducting glue (311) filled at the periphery of the fiber outlet welding section (52) and coating the fiber outlet welding section (52) and a second sealing glue (312) filled at two ends of the fiber outlet welding section (52), and the second sealing glue (312) is located at the outer side of the second heat conducting glue (311).
6. A gain fiber liquid cooled heat sink according to claim 5, characterized in that the fiber outlet assembly (3) comprises a fiber outlet pipe (32) and a second connector (33), the fiber outlet pipe (32) being mounted on the side wall of the housing (1) through the second connector (33) and communicating with the accommodation chamber (11);
The fiber outlet welding section (52), the second heat-conducting glue (311) and the second sealant (312) are all positioned in the fiber outlet pipe (32).
7. The gain fiber liquid cooling heat dissipating device according to claim 6, wherein the fiber outlet pipe (32) is provided with a second glue injection port (321), the second heat conducting glue (311) and/or the second heat conducting glue are filled into the fiber outlet pipe (32) through the second glue injection port (321),
The second connecting piece (33) is provided with a fiber outlet sealing groove (333), a sealing strip is arranged in the fiber outlet sealing groove (333), and when the fiber outlet pipe (32) is installed on the side wall of the shell (1) through the second connecting piece (33), the sealing strip in the fiber outlet sealing groove (333) is abutted to the side wall of the shell (1).
8. A gain fiber liquid cooled heat sink according to any of claims 1-7, characterized in that a cover plate (6) is mounted on top of the housing (1).
9. The gain fiber liquid cooling heat dissipating device according to claim 8, wherein a sealing groove (7) is provided at the top of the housing (1), a sealing strip is provided in the sealing groove (7), and when the cover plate (6) is mounted at the top of the housing (1), the sealing strip in the sealing groove (7) abuts against the bottom of the cover plate (6).
10. The gain fiber liquid cooling heat dissipating device according to any of claims 1-7, wherein the side wall of the housing (1) is provided with a liquid inlet (12) and a liquid outlet (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323507114.9U CN222214782U (en) | 2023-12-20 | 2023-12-20 | Gain optic fibre liquid cooling heat abstractor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323507114.9U CN222214782U (en) | 2023-12-20 | 2023-12-20 | Gain optic fibre liquid cooling heat abstractor |
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| CN222214782U true CN222214782U (en) | 2024-12-20 |
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| CN202323507114.9U Active CN222214782U (en) | 2023-12-20 | 2023-12-20 | Gain optic fibre liquid cooling heat abstractor |
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| CN (1) | CN222214782U (en) |
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