CN107453192A - A kind of high-capacity optical fiber laser liquid cooling heat radiation system - Google Patents
A kind of high-capacity optical fiber laser liquid cooling heat radiation system Download PDFInfo
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- CN107453192A CN107453192A CN201710676023.8A CN201710676023A CN107453192A CN 107453192 A CN107453192 A CN 107453192A CN 201710676023 A CN201710676023 A CN 201710676023A CN 107453192 A CN107453192 A CN 107453192A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/0407—Liquid cooling, e.g. by water
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- Optics & Photonics (AREA)
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Abstract
The invention discloses a kind of high-capacity optical fiber laser liquid cooling heat radiation system, including：Substrate, water annulus is milled with substrate, water annulus bottom is provided with spiral involute fiber grooves along circumferential direction, optical fiber enters water annulus outside water annulus, sink to involute fiber grooves, after coiling multi-turn in the counterclockwise direction, terminate from fiber grooves terminating point, be coiling to water annulus outer circumferential side；Water annulus upper cover plate is placed in substrate, and is sealed between substrate；Set coolant water inlet and delivery port, the optical fiber to be radiated of high-capacity optical fiber laser to be immersed in coolant on water annulus upper cover plate, good radiating effect is realized by the quick flowing of coolant.Present invention optical fiber to be radiated is immersed directly in coolant, and good radiating effect, effect of the cooling effect considerably beyond conduction cooling radiating are realized by the quick flowing of coolant；Optical fiber is fixed in the groove in water channel, had both facilitated the arrangement of optic fibre light path, and had protected optical fiber not to be damaged again.
Description
Technical field
The invention belongs to fiber laser technology field, is related to a kind of high-capacity optical fiber laser liquid cooling heat radiation system.
Background technology
With the horizontal continuous improvement of high power fiber laser power output, heat problem has become restriction optical-fiber laser
The restraining factors that device power output further improves, how efficiently, fast, easily by the quick band of used heat on optical fiber
Walk, turn into the important research topic in optical fiber laser field.
Currently, the heat dissipating method that high-capacity optical fiber laser uses is common air-cooled, cold drawing is heat sink heat loss through conduction, cold drawing
The methods of groove heat loss through conduction, groove thermal grease conduction (glue) radiating, there is larger power limitation.
Such as patent CN204103233U, conduction cooling is carried out based on the method for the even temperature coldplate in microchannel, then to optical fiber,
But the complex manufacturing technology of coldplate；And for example CN101640364A, based on the heat dissipating method of inner and outer ring refrigerator, gain fibre
It is wrapped on interior refrigerator and is in contact with outer refrigerator, radiating is realized by conducting to cool down；And for example CN100576661C, it is based on
Surface is provided with the metal tube in shape of threads profile fiber groove, realizes liquid-cooled conduction cooling radiating；And for example CN203225449U, adopt
With water annulus and the heat dissipation channel of radiating toothing, by conducting the type of cooling, realize that optical fiber cools down；And for example
CN105098573A, using the method for the direct cooled cold plate of micro-compressor, indirectly conduction cooling optical fiber.
The method that the above method cools down indirectly using gain fibre, no matter microchannel, tubular liquid is cold, or compression
Machine cools down, first cooled cold plate, and by coldplate or cooling bath conduction cooling gain fibre, it is indirectly with optical fiber to there is cold drawing
Contacting surface product it is insufficient, radiating it is insufficient the problem of, with the further raising of optical fiber laser output power, such method be difficult by
Heat on unit length optical fiber is quickly taken away, and the thermal power densities in unit length are too high, and radiating effect is bad.
The content of the invention
(1) goal of the invention
The purpose of the present invention is：In view of optical fiber laser power output more and more higher, and a variety of biographies such as current cold drawing, groove
The problem of cooling means is insufficient to the radiating of high-capacity optical fiber laser gain fibre is led, the present invention gets around the radiating side of conduction cooling
Method, gain fibre is immersed in coolant, using enclosed water annulus, forms flowing water, realize to high thermal power densities
The high efficiency and heat radiation of optical fiber, notable radiating effect is realized, to realize that the output of optical fiber laser more power provides strong support.
(2) technical scheme
In order to solve the above-mentioned technical problem, the present invention provides a kind of high-capacity optical fiber laser liquid cooling heat radiation system, and it is wrapped
Include：Substrate 1, as heat dissipation cold plate；A water annulus 3 is milled with substrate 1, to pass through coolant；The bottom edge of water annulus 3
Circumferential direction and be provided with spiral involute fiber grooves 4, optical fiber is narrow by water annulus optical fiber import from the outside of water annulus 3
Seam 8 enters water annulus 3, and involute fiber grooves 4 are sunk to since fiber grooves starting point 13, coils in the counterclockwise direction more
After circle, terminate from fiber grooves terminating point 14, and exported by water annulus fiber outlet slit 9, is coiling to outside water annulus
The week side of boss；Water annulus upper cover plate 10 is placed in substrate 1, and completes waterway seal between substrate 1；On water annulus upper cover plate 10
Set water inlet 11 and delivery port 12, coolant to enter from water inlet 11, flowed out from delivery port 12, high-capacity optical fiber laser
Optical fiber to be radiated is immersed in coolant, and good radiating effect is realized by the quick flowing of coolant.
Wherein, the substrate 1 selects metal material, good heat conductivity, carries superpower laser optical fiber and water route.
Wherein, the shape of cross section of the involute fiber grooves 4 is rectangle, arc or del.
Wherein, in addition to：Multiple optical fiber fix briquetting 6, and arranged for interval is fixed on annular water on multi-ring fiber, by optical fiber
Inside road 3.
Wherein, external seal groove 2 and interior sealing groove 5 are carved with the annular outboard of the water annulus 3 and inner side respectively, pass through rubber
After glue rope or seal with elastometic washer, water annulus upper cover plate 10 is placed in substrate 1, completes the sealing in water route.
Wherein, water route cut off device 7 is set in the water annulus 3, water inlet 11 and delivery port 12 respectively positioned at water route every
The disconnected both sides of device 7, are separated water annulus 3 by water route cut off device 7.
Wherein, the disengaging of the optical fiber is entered by water annulus optical fiber inlet slot 8 and water annulus fiber outlet slit 9
Go out, gluing is to realize the sealing in water route in two slits.
Wherein, the water annulus optical fiber inlet slot 8 and the intake-outlet direction of water annulus fiber outlet slit 9,
Optical fiber is imported according to diagonal export or is imported and exported optical fiber using two input and output slits on the outside of water annulus or is adopted
Optical fiber is imported and exported with two input and output slits on the inside of water annulus.
Wherein, the water annulus 3 is that two semicircles are connected to be formed or be circular water with two sections of water channels kept straight on
Road, oval water channel, figure of eight water channel.
Wherein, the implementation process of the cooling system is：On the base 1 by water annulus 3, water annulus external seal groove 2,
Water annulus interior sealing groove 5, involute fiber grooves 4, water annulus optical fiber inlet slot 8 and water annulus fiber outlet slit
9 machine；Then the optical fiber of optical fiber laser, water annulus is entered from water annulus optical fiber inlet slot 8, it is recessed from optical fiber
Groove starting point 13 starts to sink to fiber grooves, after coiling multi-turn along involute groove, terminates from fiber grooves terminating point 14, and pass through
Cross water annulus fiber outlet slit 9 to export, be coiling to outside water annulus, optical fiber, which is fixed briquetting 6, is distributed in water annulus
It is fixed to coiling optical fiber therein, meanwhile, water route cut off device 7 is placed among the intake-outlet of water annulus, fixed；
Then in water annulus optical fiber inlet slot 8 and the gluing of water annulus fiber outlet slit 9；Then rubber rope or rubber seal
Circle disk enters water annulus external seal groove 2 and water annulus interior sealing groove 5；Then the water annulus upper cover plate 10 processed,
Disengaging water swivel in water route is installed, then water annulus upper cover plate 10 is sealed with substrate 1, fastened；Finally, intake-outlet is accessed cold
Water dispenser, allow coolant quickly to be flowed in water annulus 3, complete the high efficiency and heat radiation of high-capacity optical fiber laser gain fibre.
(3) beneficial effect
The high-capacity optical fiber laser liquid cooling heat radiation system that above-mentioned technical proposal is provided, optical fiber to be radiated are immersed directly in
In coolant, good radiating effect is realized by the quick flowing of coolant, cooling effect radiates considerably beyond conduction cooling
Effect；Optical fiber is fixed in the groove in water channel, had both facilitated the arrangement of optic fibre light path, and had protected optical fiber not to be damaged again.
Brief description of the drawings
Fig. 1 is optical fiber laser annular water channel cooling system structure exploded view of the present invention.
Fig. 2 is the partial enlarged drawing in optical fiber laser water annulus section of the present invention.
Fig. 3 is the optic fibre exit partial enlarged drawing of optical fiber laser water annulus of the present invention.
Fig. 4 is the optical fiber laser circular course cooling system structure exploded view of one of alternative of the present invention.
In figure, 1 is substrate；2 be water annulus external seal groove；3 be water annulus；4 be involute fiber grooves；5 be ring
Shape water channel interior sealing groove；6 be that optical fiber fixes briquetting；7 be water route cut off device；8 be water annulus optical fiber inlet slot；9 be annular
Water channel fiber outlet slit；10 be water annulus upper cover plate；11 be water inlet；12 be delivery port；13 be fiber grooves starting point；
14 be fiber grooves terminating point.
Embodiment
To make the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to the tool of the present invention
Body embodiment is described in further detail.
Shown in reference picture 1, the present embodiment cooling system includes：Substrate 1, as heat dissipation cold plate；A ring is milled with substrate 1
Shape water channel 3, to pass through coolant；The bottom of water annulus 3 is provided with spiral involute fiber grooves 4, light along circumferential direction
It is fine to enter water annulus 3 by water annulus optical fiber inlet slot 8 from the outside of water annulus 3, opened from fiber grooves starting point 13
Beginning sinks to involute fiber grooves 4, after coiling multi-turn in the counterclockwise direction, terminates from fiber grooves terminating point 14, and pass through ring
Shape water channel fiber outlet slit 9 exports, and is coiling to water annulus outer circumferential side；Water annulus upper cover plate 10 is placed in substrate 1, and with
Waterway seal is completed between substrate 1；Water inlet 11 and delivery port 12 be set on water annulus upper cover plate 10, and coolant is from water inlet
11 enter, and are flowed out from delivery port 12, the optical fiber to be radiated of high-capacity optical fiber laser is immersed in coolant, passes through coolant
Good radiating effect is realized in quick flowing.
Wherein, substrate 1 selects metal material, good heat conductivity, carries optical fiber and water route, such as aluminium sheet.Coolant can be with
From water or other liquid.The shape of cross section of involute fiber grooves 4 is rectangle, arc, del or other geometric forms
Shape, as long as optical fiber can be carried and constrain fiber position.Involute fiber grooves 4 are in the base plane of water annulus 3
Arrangement is distributed in involute, as shown in Figure 3.According to practical application, involute fiber grooves can also replace with tongue.
Cooling system also includes：Multiple optical fiber fix briquetting 6, and arranged for interval is fixed on ring on multi-ring fiber, by optical fiber
Inside shape water channel 3.
External seal groove 2 and interior sealing groove 5 are carved with the annular outboard of water annulus 3 and inner side respectively, pass through rubber rope or rubber
After rubber sealing, water annulus upper cover plate 10 is placed in substrate 1, completes the sealing in water route.
Water route cut off device 7 is set in water annulus 3, water inlet 11 and delivery port 12 are located at the both sides of water route cut off device 7 respectively,
Water annulus 3 is separated by water route cut off device 7, it is ensured that the coolant flow in water annulus 3 is uniform, stability of flow, does not have
Dead water region, realize good heat loss through convection effect.
The disengaging of optical fiber is passed in and out by water annulus optical fiber inlet slot 8 and water annulus fiber outlet slit 9, and two narrow
Gluing is to realize the sealing in water route in seam.
The position of water inlet 11 and delivery port 12 is only for reference, may be replaced by other positions, modification and design water channel
The direction of interior current and Flow-rate adjustment.
Wherein, the intake-outlet direction of water annulus optical fiber inlet slot 8 and water annulus fiber outlet slit 9, can be with
Optical fiber is imported according to the diagonal export shown in Fig. 3, optical fiber can also diagonally be imported and exported using another set, ring can also be used
Two input and output slits import and export optical fiber on the outside of shape water channel, can also equally use two input and output on the inside of water annulus
Slit imports and exports optical fiber.
, can also be by annular meanwhile the water annulus in this programme is that two semicircles and the water channel of two sections of straight trips are formed
Water channel becomes round water channel as shown in figure 4, can be mainly characterized by being formed with the water channel of the other shapes such as ellipse, the figure of eight
The water channel of one sealing, coolant carry out immersion type to gain fibre in water channel and directly washed away, and realize good heat radiating.
Based on said structure, the implementation process of cooling system is：According to the structure chart shown in Fig. 1, on the base 1 by annular
Water channel 3, water annulus external seal groove 2, water annulus interior sealing groove 5, involute fiber grooves 4, water annulus optical fiber import are narrow
Seam 8 and water annulus fiber outlet slit 9 machine；Then the optical fiber of optical fiber laser, from water annulus optical fiber import
Slit 8 enters water annulus, and fiber grooves are sunk to since fiber grooves starting point 13, after coiling multi-turn along involute groove,
Terminate from fiber grooves terminating point 14, and exported by water annulus fiber outlet slit 9, is coiling to outside water annulus,
Optical fiber fixation briquetting 6 is distributed in water annulus and is fixed to coiling optical fiber therein, meanwhile, water route cut off device 7 is placed in ring
Among the intake-outlet of shape water channel, fix；Then in water annulus optical fiber inlet slot 8 and water annulus fiber outlet slit
9 gluings；Then rubber rope or rubber seal disk are entered water annulus external seal groove 2 and water annulus interior sealing groove 5；Then
The water annulus upper cover plate 10 processed, installation water route passes in and out water swivel, then water annulus upper cover plate 10 and substrate 1 is close
Envelope, fastening；Finally, intake-outlet is accessed cooling-water machine, allows coolant quickly to be flowed in water annulus 3, complete high power light
The high efficiency and heat radiation of fibre laser gain fibre.
The present embodiment cooling system is used not only in optical fiber laser, can be also used in optical fiber laser amplifier.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (10)
- A kind of 1. high-capacity optical fiber laser liquid cooling heat radiation system, it is characterised in that including：Substrate (1), as heat dissipation cold plate； A water annulus (3) is milled with substrate (1), to pass through coolant；Water annulus (3) bottom is provided with along circumferential direction Spiral involute fiber grooves (4), optical fiber enter ring from water annulus (3) is outside by water annulus optical fiber inlet slot (8) Shape water channel (3), involute fiber grooves (4) are sunk to since fiber grooves starting point (13), coil multi-turn in the counterclockwise direction Afterwards, terminate from fiber grooves terminating point (14), and by water annulus fiber outlet slit (9) export, be coiling to water annulus Outer circumferential side；Water annulus upper cover plate (10) is placed in substrate (1), and completes waterway seal between substrate (1)；On water annulus Water inlet (11) and delivery port (12) are set on cover plate (10), coolant enters from water inlet (11), is flowed out from delivery port (12), The optical fiber to be radiated of high-capacity optical fiber laser is immersed in coolant, and good radiating is realized by the quick flowing of coolant Effect.
- 2. high-capacity optical fiber laser liquid cooling heat radiation system as claimed in claim 1, it is characterised in that substrate (1) choosing With metal material, good heat conductivity, superpower laser optical fiber and water route are carried.
- 3. high-capacity optical fiber laser liquid cooling heat radiation system as claimed in claim 1, it is characterised in that the involute optical fiber The shape of cross section of groove (4) is rectangle, arc or del.
- 4. high-capacity optical fiber laser liquid cooling heat radiation system as claimed in claim 1, it is characterised in that also include：Multiple light The fixed briquetting (6) of fibre, it is internal that arranged for interval is fixed on water annulus (3) on multi-ring fiber, by optical fiber.
- 5. high-capacity optical fiber laser liquid cooling heat radiation system as claimed in claim 1, it is characterised in that the water annulus (3) annular outboard and inner side is carved with external seal groove (2) and interior sealing groove (5) respectively, after rubber rope or seal with elastometic washer, Water annulus upper cover plate (10) is placed in substrate (1), completes the sealing in water route.
- 6. high-capacity optical fiber laser liquid cooling heat radiation system as claimed in claim 1, it is characterised in that the water annulus (3) water route cut off device (7) is set in, and water inlet (11) and delivery port (12) are located at water route cut off device (7) both sides, pass through water respectively Road cut off device (7) separates water annulus (3).
- 7. high-capacity optical fiber laser liquid cooling heat radiation system as claimed in claim 1, it is characterised in that the disengaging of the optical fiber Passed in and out by water annulus optical fiber inlet slot (8) and water annulus fiber outlet slit (9), gluing is to realize in two slits The sealing in water route.
- 8. high-capacity optical fiber laser liquid cooling heat radiation system as claimed in claim 1, it is characterised in that the water annulus light The intake-outlet direction of fine inlet slot (8) and water annulus fiber outlet slit (9), according to diagonal export import optical fiber or Person imports and exports optical fiber using two input and output slits on the outside of water annulus or uses two inputs on the inside of water annulus defeated Go out slit and import and export optical fiber.
- 9. high-capacity optical fiber laser liquid cooling heat radiation system as claimed in claim 1, it is characterised in that the water annulus (3) it is connected for two semicircles with two sections of water channels kept straight on and is formed or be circular course, oval water channel, figure of eight water Road.
- 10. high-capacity optical fiber laser liquid cooling heat radiation system as claimed in claim 1, it is characterised in that the cooling system Implementation process be：By water annulus (3), water annulus external seal groove (2), water annulus interior sealing groove in substrate (1) (5), involute fiber grooves (4), water annulus optical fiber inlet slot (8) and water annulus fiber outlet slit (9) process Into；Then the optical fiber of optical fiber laser, water annulus is entered from water annulus optical fiber inlet slot (8), from fiber grooves Initial point (13) starts to sink to fiber grooves, after coiling multi-turn along involute groove, terminates from fiber grooves terminating point (14), and pass through Water annulus fiber outlet slit (9) export is crossed, is coiling to outside water annulus, optical fiber, which is fixed briquetting (6), is distributed in annular Water channel is fixed to coiling optical fiber therein, meanwhile, water route cut off device (7) is placed among the intake-outlet of water annulus, Fix；Then in water annulus optical fiber inlet slot (8) and water annulus fiber outlet slit (9) gluing；Then rubber Rope or rubber seal disk enter water annulus external seal groove (2) and water annulus interior sealing groove (5)；Then the ring processed Shape water channel upper cover plate (10), installation water route disengaging water swivel, then water annulus upper cover plate (10) and substrate (1) sealing, fastening； Finally, intake-outlet is accessed cooling-water machine, allows coolant quickly to be flowed in water annulus (3), complete high power optical fibre laser The high efficiency and heat radiation of device gain fibre.
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| CN110429457A (en) * | 2019-08-19 | 2019-11-08 | 北京东方锐镭科技有限公司 | A kind of hot and cold water sink component for laser crystal |
| CN110829157A (en) * | 2019-10-22 | 2020-02-21 | 中国人民解放军国防科技大学 | Optical fiber laser cooling device and method based on flowing low-boiling-point liquid |
| CN110888208A (en) * | 2019-12-09 | 2020-03-17 | 亨通洛克利科技有限公司 | Optical module with fiber winding mechanism |
| CN110971008A (en) * | 2018-09-28 | 2020-04-07 | 威刚科技股份有限公司 | Wireless charging device with heat dissipation function |
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