CN210111282U - Heat radiator for compact high power fiber laser subassembly - Google Patents
Heat radiator for compact high power fiber laser subassembly Download PDFInfo
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- CN210111282U CN210111282U CN201920911577.6U CN201920911577U CN210111282U CN 210111282 U CN210111282 U CN 210111282U CN 201920911577 U CN201920911577 U CN 201920911577U CN 210111282 U CN210111282 U CN 210111282U
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Abstract
The utility model discloses a heat abstractor of compact high power fiber laser subassembly, include: the metal heat dissipation cylinder comprises an outer cylinder matched with each fiber laser and an inner cylinder for dissipating heat of the outer cylinder; wherein, each fiber laser is provided with a metal heat conducting plate which is jointed with the side wall of the outer cylinder at the position matched with the internal pump laser and the gain fiber; the outer cylinder side wall is configured to have a plurality of sections in a longitudinal space to constitute a mounting portion for heat dissipation of the fiber laser. The utility model provides a heat abstractor of compact high power fiber laser subassembly, its structural design through the metal heat dissipation barrel for fiber laser subassembly can realize integrating the management, more does benefit to overall arrangement on the space simultaneously, guarantees its compactedness, and is high-efficient brief again.
Description
Technical Field
The utility model relates to a heat dissipation device. More specifically, the utility model relates to a heat abstractor for under compact high power fiber laser subassembly heat dissipation condition.
Background
The high-power optical laser mainly comprises a pump laser, a pump beam combiner, a fiber grating, a gain fiber, a cladding optical power stripper, an output end cap and the like. When the output power of the fiber laser reaches the magnitude of hundreds of watts or more (called as a high-power fiber laser), tens of fibers or even hundreds of fibers are generally needed to be coupled with the pump laser in order to reach the output power of the magnitude of hundreds of watts or more, but when the output power reaches the magnitude of hundreds of watts or more, a fiber module formed by a gain fiber and a fiber device in the laser can emit large heat, if the generated heat cannot be led out in time, the heat is accumulated, the working state of the fiber module is seriously influenced, even the equipment is possibly damaged and failed, and the output capacity of the fiber laser is greatly restricted.
In a traditional heat dissipation mode, a water cooling mechanism is usually added in a laser, so that the structure of the laser is larger, the requirement of system compactness is not met, and the laser is easily damaged when a water pipe leaks water; and advanced heat dissipation technologies, such as spray phase change cooling or microchannel phase change cooling, are adopted, and an external driving device or another energy storage device is needed, so that the system is complex.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defect, the utility model provides a heat abstractor of compact high power fiber laser subassembly, it can be through the structural design of metal heat dissipation barrel, realize that metal heat-conduction and natural wind heat dissipation combine together, and then guarantee that fiber laser is in effective operating temperature scope (about 20-80 ℃) all the time, the structural design through metal heat dissipation barrel simultaneously for fiber laser subassembly can realize the management of integrating, more do benefit to the overall arrangement on the space simultaneously, guarantee its compactedness, it is high-efficient brief again.
In order to achieve the technical effect, the utility model provides a heat abstractor of compact high power fiber laser subassembly, compact high power fiber laser subassembly contains a plurality of and heat abstractor matched with fiber laser, heat abstractor includes:
the metal heat dissipation cylinder comprises an outer cylinder matched with each fiber laser and an inner cylinder for dissipating heat of the outer cylinder;
wherein, each fiber laser is provided with a metal heat conducting plate which is jointed with the side wall of the outer cylinder at the position matched with the internal pump laser and the gain fiber;
the outer cylinder side wall is configured to have a plurality of sections in a longitudinal space to constitute a mounting portion for heat dissipation of the fiber laser.
Preferably, the metal heat dissipation cylinder further has a bottom and a top matched with the metal heat dissipation cylinder, so as to define a sealed cavity capable of containing a heat dissipation medium;
wherein, the heat dissipation medium is configured to adopt liquid with the boiling point of 40-60 ℃ as a working medium for boiling heat transfer;
the top part is configured to be in an arc-shaped structure in space, and is provided with a gas conveying pipe communicated with the gas inlet of the condenser;
the air outlet of the condenser is communicated with the sealing cavity through a matched liquid return pipe.
Preferably, a heat radiation fan matched with the condenser is further included.
Preferably, wherein the condenser is configured to include:
the copper pipe assembly is used for converting hot gas conveyed by the sealed cavity into liquid through heat exchange with air;
the mounting rack is matched with the top;
the supporting component is detachably arranged on the mounting rack to limit the copper pipe component;
the supporting component is configured to be a frame structure, and positioning parts matched with the copper pipe components are detachably arranged on the bottom surface and the top surface of the supporting component;
the copper pipe assembly is configured to comprise a plurality of spiral copper pipes which are communicated with each other, and a heat dissipation fin set matched with the copper pipes.
Preferably, the copper pipe assembly further comprises a gas distribution pipe and a liquid collection pipe which are respectively matched with two ends of each copper pipe, and each copper pipe is spatially configured into a snake-shaped structure which is arranged downwards;
the positioning piece is configured into a U-shaped structure, and an arc-shaped part matched with the external structure of the copper pipe is arranged in the sinking groove of the positioning piece;
and the top surface and the bottom surface of the supporting component are provided with limiting sliding grooves matched with the positioning pieces.
Preferably, wherein, the top of the metal heat dissipation cylinder is provided with a gas collection port with a conical structure at the position matched with the gas conveying pipe.
Preferably, the heat dissipation medium is configured to use a liquid with a boiling point of 40-60 ℃ as a working medium for boiling heat transfer.
Preferably, the metal heat dissipation cylinder is provided with an observation port made of transparent material so as to observe the liquid level of a heat dissipation medium in the metal heat dissipation cylinder;
the top of the metal heat dissipation cylinder body is provided with a liquid injection port and a sealing cover matched with the liquid injection port.
Preferably, each of the fiber lasers is provided with a plurality of protrusions with special-shaped structures on the matched side of the heat conducting member or on the heat conducting member;
the outer cylinder of the metal heat dissipation cylinder is provided with mounting grooves matched with the protrusions at each mounting position;
and a silica gel layer matched with the external structures of the protrusions is arranged in the mounting groove.
Preferably, the heat conducting member is disposed to protrude 0.1-0.5mm from the fiber laser housing on a side corresponding to each mounting position.
Compared with the prior art, the utility model discloses following beneficial effect has: one of which, the utility model discloses a metal heat dissipation barrel, through the cooperation of metal conduction and natural wind, and then guarantee that fiber laser is in effective operating temperature scope (about 20-80 ℃) all the time in, through the structural design of metal heat dissipation barrel simultaneously for fiber laser subassembly can realize integrating the management, more does benefit to the overall arrangement on the space simultaneously, guarantees its compactedness.
Two, the utility model discloses a metal heat dissipation barrel structural design to and the cooperation of its inside heat dissipation medium, have great phase transition heat transfer, the heat transfer efficiency of the in-process of liquid-gas phase transition is enough to satisfy the heat dissipation demand, so need not any external drive arrangement can realize the efficient heat dissipation, can realize the heat dissipation of integration.
Thirdly, the utility model discloses can also realize working medium's cyclic utilization, reduce the use and the maintenance cost.
And fourthly, the utility model discloses a to condenser structural design for its condensation and gas-liquid separation effect are better, satisfy radiating condensation needs.
Drawings
Fig. 1 is a schematic cross-sectional structural view of a heat sink of a compact high power fiber laser assembly of the present invention;
fig. 2 is a schematic longitudinal sectional structure view of a heat sink of the compact high-power fiber laser module according to the present invention;
fig. 3 is a schematic top view of the condenser of the present invention.
The device comprises a heat dissipation device 1, a fiber laser 2, a metal heat dissipation cylinder 3, an outer cylinder 4, an inner cylinder 5, a metal heat conduction plate 6, a mounting part 7, a bottom part 8, a top part 9, a heat dissipation medium 10, a sealing cavity 11, a condenser 12, a gas pipe 13, a liquid return pipe 14, a copper pipe 15, a mounting rack 16, a support component 17, a positioning component 18, a copper pipe 19, a gas distribution pipe 20, a liquid collection pipe 21, an arc part 22, a limiting sliding groove 23, a gas collection opening 24, a gas pressure detection pipe 25, a pressure indicator 26, a valve 27, a liquid injection opening 28, a sealing cover 29, a protrusion 30 and a mounting groove 31.
Detailed Description
The present invention is further described in detail below with reference to the drawings and specific examples so that those skilled in the art can practice the invention with reference to the description.
Example 1
Fig. 1 and 2 show a heat sink implementation form of a compact high power fiber laser assembly according to the present invention, the compact high power fiber laser assembly contains a plurality of fiber lasers 2 matched with a heat sink 1, the heat sink includes:
the metal heat dissipation barrel 3 comprises an outer barrel 4 matched with each fiber laser, an inner barrel 5 and an outer barrel heat dissipation barrel, wherein the outer barrel 4 is matched with each fiber laser to exchange heat generated by the work of each fiber laser and transfer the heat outwards, so that each fiber laser can be kept at a stable working temperature, the inner barrel is used for dissipating the heat of the outer barrel, the inner barrel is used for taking away the heat absorbed by the outer barrel through air due to an open structure, and the metal heat dissipation barrel is preferably made of aluminum, magnesium and copper;
wherein, each fiber laser is provided with a metal heat conducting plate 6 which is jointed with the side wall of the outer cylinder at the position matched with the internal pumping laser and the gain fiber, and is used for pumping the internal pumping laser in the laser with the output power reaching more than hundred watts; the optical fiber module consisting of the gain optical fiber and the optical fiber device can emit larger heat to be transferred out when working, so that the optical fiber module is not required to be independently cooled by other cooling mechanisms, and the structure compactness of each optical fiber laser is further ensured;
the lateral wall of the outer barrel is configured to be provided with a plurality of tangent planes in the longitudinal space, and the tangent planes are used for matching rectangular shells of the optical fiber lasers, so that the laminating degree of the outer barrel and the shells is higher, the heat transfer effect is better, the installation part 7 for radiating the optical fiber lasers is formed, and the installation and laminating stability is better. By adopting the scheme, the fiber laser component is subjected to heat dissipation treatment, and is ensured to be always in an effective working temperature range (about 20-80 ℃) through the cooperation of metal conduction and natural wind, and meanwhile, the fiber laser component can realize integrated management through the structural design of the metal heat dissipation barrel, is more favorable for spatial layout, ensures the compactness of the fiber laser component, and has the advantages of good implementable effect, strong operability, good adaptability and strong stability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.
In another example, as shown in fig. 2, the metal heat-dissipating cylinder further has a bottom portion 8 and a top portion 9 which are matched with each other, thereby defining a sealed cavity 11 which can contain a heat-dissipating medium 10 and is used for rapidly transferring heat on the cylinder out through an internal cooling medium;
the heat dissipation medium is configured to adopt liquid with a boiling point of 40-60 ℃ as a working medium for boiling heat transfer, and the liquid with the boiling point of 40-60 ℃ is selected as the working medium for boiling heat transfer, such as carbon disulfide with the boiling point of 46.23 ℃, acetone with the boiling point of 56.12 ℃, and methyl acetate with the boiling point of 57.2 ℃. When the fiber laser works, heat generated in the optical fiber and an optical fiber device is transferred into a liquid medium through heat conduction, the liquid medium with a low boiling point is heated to boil, and the heat is taken away through liquid-gas phase change;
the top part is configured to be an arc-shaped structure in space, the structure of the top part is designed to enable a space for holding gas to be arranged above the top part, and the top part is provided with a gas conveying pipe 13 communicated with a gas inlet of the condenser 12;
the gas outlet of condenser is through matched with liquid return pipe 14 and then with sealed chamber intercommunication, and it is equipped with the condenser with overheated steam leading-in, through condensation and ambient air's natural convection heat exchange effect, carries out the gas conversion and becomes water, flows back again in the metal heat dissipation barrel through liquid return pipe, accomplishes system circulation, and because of its structural design for these media can not contact with the air, can not produce excessive, and pollution-free is more environmental protection. The device adopting the scheme can realize heat dissipation without an external driving device, and simultaneously, the medium can automatically circulate, so that the device has the advantages of less loss, compact structure, easy maintenance, good implementable effect, strong stability and good adaptability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.
In another example, the cooling device further comprises a cooling fan (not shown) matched with the condenser, the cooling fan is arranged on the metal cooling cylinder body through a matched T-shaped mounting frame, and the temperature of the condenser is controlled through enhancing the wind speed and the wind power in the convection direction of the condenser, so that the gas-liquid conversion effect of the condenser is guaranteed. The scheme has the advantages of good implementable effect, strong operability and good stability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.
As shown in fig. 2 and 3, in another example, the condenser is configured to include:
a copper pipe assembly 15 for converting the hot gas delivered from the sealed chamber into liquid by heat exchange with air;
a mounting rack 16 matched with the top part and used for mounting the condenser on the metal heat dissipation cylinder;
a support assembly 17 detachably disposed above the mounting frame to define the copper pipe assembly;
the supporting component is configured to be a frame structure and used for ensuring that a copper pipe in the condenser has a heat exchange convection effect with air, the bottom surface and the top surface of the supporting component are detachably provided with positioning pieces 18 matched with the copper pipe component, and the supporting component is used for being connected with the copper pipe component in a detachable mode such as a clamping groove, so that the copper pipe component can be directly inserted into the clamping groove after being matched with the positioning pieces, and installation and maintenance are facilitated;
the copper tube assembly is configured to include a plurality of helical copper tubes 19 communicating with each other for increasing the length of the gas flow to ensure the phase change effect thereof, and a set of heat dissipation fins cooperating therewith for increasing the heat dissipation area for heat exchange with the air. The scheme has the advantages of good implementation effect and strong operability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.
As shown in fig. 2 and 3, in another example, the copper tube assembly further includes a gas distribution tube 20 and a liquid collection tube 21 respectively matched with two ends of each copper tube, and the gas distribution tube 20 and the liquid collection tube 21 are used for distributing the output atmospheric flow of the gas transmission tube of the sealed cavity to improve the heat dissipation effect of the gas transmission tube, and simultaneously, returning and flowing the liquid in each barrel tube into the liquid return tube, wherein each copper tube is spatially configured to be in a downward-arranged serpentine structure, and the length of the gas flowing through the copper tube is increased by the longitudinal serpentine layout, and the converted liquid is easier to flow out;
the positioning piece is configured into a U-shaped structure, an arc-shaped part 22 matched with the external structure of the copper pipe is arranged in a sinking groove of the positioning piece, the positioning piece is used for limiting and protecting the copper pipe, and a silica gel layer can be added in the positioning piece for heat transfer and limiting;
the top surface and the bottom surface of the supporting component are provided with limiting sliding grooves 23 matched with the positioning pieces, so that the positioning pieces and the supporting component are combined more easily, and the supporting component is convenient to maintain and assemble. The scheme has the advantages of good implementable effect, strong operability, good adaptability and strong stability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.
In another example, as shown in fig. 2, a gas collection port 24 with a conical structure is arranged at the top of the metal heat dissipation cylinder body at a position matched with the gas delivery pipe. The space of the gas collection part is increased by adopting the scheme, the problems of excessive gas, insufficient flow rate and excessive internal air pressure are solved, the gas of the gas conveying pipe is guided, the liquid of the sealing cavity does not exceed 2/3 of the internal volume of the gas conveying pipe, the caliber of the gas conveying pipe can be set to be 2-15cm according to the difference of media of the gas conveying pipe, the gas flow rate and the gas flow conversion efficiency are ensured, and the gas conveying pipe has the advantages of good implementation effect, strong operability, good adaptability and strong stability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.
In another example, as shown in fig. 2, the top of the metal heat-dissipating cylinder may be provided with an air pressure detecting tube 25, a pressure indicator 26, and a valve 27, which are matched with each other. By adopting the scheme, the air pressure in the sealing cavity is detected through the pressure indicator, so that when the internal pressure is overlarge, the valve is used for deflating outwards to release partial pressure, and the internal air pressure is adjusted. Certainly, a corresponding processing device can be arranged at the exhaust port of the air pressure detection pipe, so that overflowed air is discharged after harmless treatment, the operation environment is protected, and the device has the advantages of good implementable effect, strong operability, good stability and high safety. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.
As shown in fig. 2, in another example, an observation port (not shown) made of a transparent material is disposed on the metal heat dissipation cylinder to observe a liquid level of a heat dissipation medium in the metal heat dissipation cylinder, which is used for observing a volume of liquid in the metal heat dissipation cylinder in real time to ensure stability of heat dissipation operation of the metal heat dissipation cylinder;
the top of the metal heat-radiating cylinder body is provided with a liquid injection port 28 and a sealing cover 29 matched with the metal heat-radiating cylinder body, and the sealing cover is used for supplementing liquid when the liquid is insufficient. The scheme has the advantages of good implementation effect, strong stability and strong operability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.
In another example, as shown in fig. 1, each of the fiber lasers is provided with a plurality of protrusions 30 with special-shaped structures on the side where the heat conducting member is fitted or on the heat conducting member, and the protrusions are used for being fitted with the outer cylinder, so that the maintenance and installation are convenient;
the outer cylinder of the metal heat dissipation cylinder is provided with mounting grooves 31 matched with the protrusions at each mounting position;
and a silica gel layer (not shown) matched with the external structures of the protrusions is arranged in the mounting groove and used for conducting heat, fixing and limiting, and providing certain elastic force, so that the mounting is facilitated. The scheme has the advantages of good implementable effect, strong operability, good adaptability and good stability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.
In another example, the heat conducting member is configured to protrude 0.1-0.5mm from the fiber laser housing on a side that is fitted to each mounting location. By adopting the scheme, the heat conducting piece has better contact effect when being matched with the mounting position of the outer barrel, has high fitting tightness, and has the advantages of good implementable effect, strong operability, good adaptability and good stability. Also, this manner is merely an illustration of a preferred example, but not limited thereto. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the heat sink of the compact high power fiber laser assembly of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (9)
1. A heat sink for a compact high power fiber laser assembly, said compact high power fiber laser assembly comprising a plurality of fiber lasers mated to a heat sink, said heat sink comprising:
the metal heat dissipation cylinder comprises an outer cylinder matched with each fiber laser and an inner cylinder for dissipating heat of the outer cylinder;
wherein, each fiber laser is provided with a metal heat conducting plate which is jointed with the side wall of the outer cylinder at the position matched with the internal pump laser and the gain fiber;
the outer cylinder side wall is configured to have a plurality of sections in a longitudinal space to constitute a mounting portion for heat dissipation of the fiber laser.
2. The heat sink of the compact high power fiber laser assembly of claim 1, wherein the metal heat sink cylinder further has a bottom and a top mated thereto, thereby defining a sealed cavity capable of containing a heat sink medium;
wherein, the heat dissipation medium is configured to adopt liquid with the boiling point of 40-60 ℃ as a working medium for boiling heat transfer;
the top part is configured to be in an arc-shaped structure in space, and is provided with a gas conveying pipe communicated with the gas inlet of the condenser;
the air outlet of the condenser is communicated with the sealing cavity through a matched liquid return pipe.
3. The heat sink for the compact high power fiber laser assembly of claim 2 further comprising a heat sink fan cooperating with the condenser.
4. The heat sink for the compact high power fiber laser assembly of claim 2, wherein the condenser is configured to include:
the copper pipe assembly is used for converting hot gas conveyed by the sealed cavity into liquid through heat exchange with air;
the mounting rack is matched with the top;
the supporting component is detachably arranged on the mounting rack to limit the copper pipe component;
the supporting component is configured to be a frame structure, and positioning parts matched with the copper pipe components are detachably arranged on the bottom surface and the top surface of the supporting component;
the copper pipe assembly is configured to comprise a plurality of spiral copper pipes which are communicated with each other, and a heat dissipation fin set matched with the copper pipes.
5. The heat dissipation device for the compact high-power fiber laser component according to claim 4, wherein the copper tube component further comprises a gas distribution tube and a liquid collection tube which are respectively matched with two ends of each copper tube, and each copper tube is spatially configured into a snake-shaped structure which is arranged downwards;
the positioning piece is configured into a U-shaped structure, and an arc-shaped part matched with the external structure of the copper pipe is arranged in the sinking groove of the positioning piece;
and the top surface and the bottom surface of the supporting component are provided with limiting sliding grooves matched with the positioning pieces.
6. The heat dissipation device for the compact high-power fiber laser assembly according to claim 2, wherein the top of the metal heat dissipation cylinder is provided with a conical air collection port at a position matched with the air delivery pipe.
7. The heat dissipation device for the compact high-power fiber laser component according to claim 2, wherein the metal heat dissipation cylinder is provided with an observation port made of transparent material for observing the liquid level of the heat dissipation medium in the metal heat dissipation cylinder;
the top of the metal heat dissipation cylinder body is provided with a liquid injection port and a sealing cover matched with the liquid injection port.
8. The heat dissipation device for the compact high-power fiber laser assembly according to claim 1, wherein each fiber laser is provided with a plurality of protrusions with special-shaped structures on the side where the heat conducting members are matched or on the heat conducting members;
the outer cylinder of the metal heat dissipation cylinder is provided with mounting grooves matched with the protrusions at each mounting position;
and a silica gel layer matched with the external structures of the protrusions is arranged in the mounting groove.
9. The heat sink for a compact high power fiber laser assembly of claim 8, wherein the thermal conductive member is configured to protrude 0.1-0.5mm from the fiber laser housing on the side that mates with each mounting location.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920911577.6U CN210111282U (en) | 2019-06-17 | 2019-06-17 | Heat radiator for compact high power fiber laser subassembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920911577.6U CN210111282U (en) | 2019-06-17 | 2019-06-17 | Heat radiator for compact high power fiber laser subassembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112326894A (en) * | 2020-11-26 | 2021-02-05 | 贵州航天精工制造有限公司 | A quick fastening frock for matching dysmorphism piece laminating degree detects |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112326894A (en) * | 2020-11-26 | 2021-02-05 | 贵州航天精工制造有限公司 | A quick fastening frock for matching dysmorphism piece laminating degree detects |
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