CN101335421B - Optical element cooling construction and preparing method thereof - Google Patents
Optical element cooling construction and preparing method thereof Download PDFInfo
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- CN101335421B CN101335421B CN2008100715526A CN200810071552A CN101335421B CN 101335421 B CN101335421 B CN 101335421B CN 2008100715526 A CN2008100715526 A CN 2008100715526A CN 200810071552 A CN200810071552 A CN 200810071552A CN 101335421 B CN101335421 B CN 101335421B
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Abstract
The invention discloses a radiating structure of optical elements and a preparation method thereof, pertaining to the manufacturing field of a radiating structure of optical elements with laser heating. The radiating optical element, for instance, a microchip laser is covered with a layer of soft metal or soft metal alloy such as indium alloy, which is fusible at low temperature, and then arranged in a radiation element which is used for fixing the optical element; the surface has the soaking effect on the soft metal alloy which is fusible at the low temperature; the soft metal or alloy is melted and secured to the surface of the radiation element. The soft metal is melted by low-temperature heating to fill in the clearance between the optical elements and fixed elements; meanwhile the optical elements and the soft metal or metal alloy are in the non-soaking status, thus realizing the non-clearance and comparatively small clearance fixing of optical elements and achieving good radiation effect.
Description
Technical field
The present invention discloses a kind of optical element cooling construction and preparation method thereof, belongs to the manufacturing field of the optical element cooling technology of laser class heating.
Background technology
In field of lasers, it is directly to be installed on the radiator that laser bar or micro-slice laser are installed under a lot of situations, the heat conduction cooling that laser diode is good requires to have good thermo-contact between laser bar and radiator, laser bar or micro-slice laser are fixed to the normally mechanical clamping of radiator mode, welding or bonding.Usually micro-slice laser adopts the bag indium to be clamped on the cooling stand or with there being heat-conducting glue to be bonded on the support, or by locating under the clamping certain pressure and keeping physical surface to contact, its heat-conducting effect is not very desirable, and bonding is also brought certain stress usually, the heat-conducting glue conductive coefficient has only 1W/cm2 ℃ usually simultaneously, and radiating state is not fine under the higher-wattage effect.
Summary of the invention
Deficiency at existing laser bar or micro-slice laser mounting technique, the invention provides a kind of optical element cooling construction and preparation method thereof, by low-temperature heat gap between optical element and the fixture is filled in the soft metal fusing, optical element and soft metal or metal alloy are in the non-infiltration state simultaneously, thereby realize that optical element does not have the gap and less gap is fixed, reach great heat radiation effect.
The present invention is achieved by the following technical solutions:
The present invention is in the louvre of the fin that optical element is arranged at fixing optical element a little less than the heating, wherein, the soft metal of the weak optical element outer surface of heating or alloy-layer simultaneously are bonded on the heat radiation hole wall, this soft metal or alloy-layer and heat radiation hole wall are in wet face state, and the another side of soft metal or alloy-layer is in the non-infiltration state with the weak optical element of heating.
Described fin can be a slice or two or two above elements formations.
Self surface of described fin has the cooling stand of effect of impregnation may to constitute to fusible soft metal of specific low temperature or metal alloy, and also can adopt to contain in the plating of cooling stand upper surface has the rete of infiltration cooling stand to constitute to fusible soft metal of low temperature or metal alloy.
It can be laser bar or micro-slice laser microplate or frequency-doubling crystal that the described heating low light level is learned element.
Described soft metal or alloy-layer are indium alloy, low temperature scolding tin etc.
A kind of optical element cooling construction preparation method, but adopt the soft metal of cold melt or soft metal alloy to be wrapped in the weak optical element skin of heating, and be placed on the surface and but cold melt soft metal or metal alloy had among the fin of fixing optical element of effect of impregnation may, by low-temperature heat, make soft metal or alloy melting simultaneously be bonded on the fin; Another side and optical element are in the non-infiltration state, thereby realize that the microgap is fixed between optical element and the cooling stand, thereby reach better heat radiating effect.
Above-mentioned cold melt soft metal or soft metal alloy can directly melt and inject between fin and the weak optical element of heating.
Above-mentioned fin can be a slice or two or two above elements formations, fin self surface has the cooling stand of effect of impregnation may to constitute to the fusible soft metal of specific low temperature or metal alloy, and also can adopt to contain in the plating of cooling stand upper surface has the rete of infiltration cooling stand to constitute to fusible soft metal of low temperature or metal alloy.
Above-mentioned optical element can be laser bar or micro-slice laser microplate or frequency-doubling crystal.
Above-mentioned soft metal or soft metal alloy are to adopt 90～150 ℃ fusible indium alloy of temperature or low temperature scolding tin.
But the present invention adopts soft metal or soft metal alloy such as indium alloy at the optical element of heating such as the outer parcel of micro-slice laser one deck cold melt, be placed on and be used for fixing among the optical element cooling element, but there is effect of impregnation may on its surface to cold melt soft metal alloy, and low temperature soft metal or alloy dissolve sticking method on the heat dissipation element surface.By low-temperature heat gap between optical element and the fixture is filled in the soft metal fusing, optical element and soft metal or metal alloy are in the non-infiltration state simultaneously, thereby realize that optical element does not have the gap and less gap is fixed, and reach great heat radiation effect.Owing to adopt the technology of the present invention, the air gap only is stored between low-melting-point metal or alloy and laser bar or the micro-slice laser between fin and laser bar or the micro-slice laser, thereby cancellation gap between alloy and the fin in the low melting metal, thereby simultaneously keep atomic little gap between low melting metal and laser bar or the micro-slice laser but have more contacts area improved greatly laser bar or and the diffusing rod of micro-slice laser heat radiation between radiating state, made it excellent heat dispersion performance.On the other hand, owing to adopt soft metal or soft metal alloy, soft metal or soft metal alloy and laser bar or micro-slice laser are in unadhered state simultaneously, and minim gap is arranged simultaneously, thereby microplate or laser bar pressure reduce greatly when making variations in temperature.
The present invention has following useful effect:
1, low-melting-point metal or alloy and fin are in wet face state, and heat dispersion is good;
2, low-melting-point metal or alloy and fin do not have the gap and less gap is fixed, and microplate or laser bar pressure are little when making variations in temperature;
3, reasonable in design, the mount craft science of this optical element cooling construction has very big practicality and market economy to be worth.
Description of drawings
Fig. 1 a, b are the first embodiment of the invention structural representations;
Fig. 2 a, b are the second embodiment of the invention structural representations;
Fig. 3 a, b are the third embodiment of the invention structural representations.
Among Fig. 1 a, b, Fig. 2 a, the b: 101,102 is fixed support, and 103 is laser bar or micro-slice laser, and 104,105,106 is low-melting-point soft metal or soft metal alloy.
Among Fig. 3 a, the b, 201 is cooling stand, and 202 are the heating optical element, and 203 is low-melting-point soft metal or metal alloy.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment 1: structure such as Fig. 1 a, shown in the b figure, but soft metal or the soft metal alloy such as the indium alloy of the optical element of heating such as 90～150 ℃ of fusings of micro-slice laser 103 outer parcel one deck low temperature, be placed on and be used for fixing among the optical element cooling element, this heat dissipation element is by two fixed supports 101,102 form, and two supports 101, apply certain pressure between 102, and be heated to uniform temperature, then low-melting-point soft metal or soft metal alloy 104,105,106 melt and are bonded in fixed support 101, on 102, simultaneously low-melting-point metal flows naturally and makes that the gap minimizes between micro-slice laser 103 and the fixed support 101,102, because micro-slice laser 103 mostly is crystal with laser bar, nonmetallic materials such as glass or pottery, its surface does not generally have wettability, will not produce bonding.
Fin is to have the cooling stand of effect of impregnation may to constitute by self surface to fusible soft metal of specific low temperature or metal alloy, and also can adopt to contain in the plating of cooling stand upper surface has the rete of infiltration cooling stand to constitute to fusible soft metal of low temperature or metal alloy.Fusible soft metal of low temperature or metal alloy are indium alloy, low temperature scolding tin etc.
Owing to adopt the art of this patent, the air gap only is stored between low-melting-point metal or alloy and laser bar or the micro-slice laser between fin and laser bar or the micro-slice laser, thereby cancellation gap between alloy and the fin in the low melting metal, thereby simultaneously keep atomic little gap between low melting metal and laser bar or the micro-slice laser but have more contacts area improved greatly laser bar or and the diffusing rod of micro-slice laser heat radiation between radiating state, made it excellent heat dispersion performance.On the other hand, owing to adopt soft metal or soft metal alloy, soft metal or soft metal alloy and laser bar or micro-slice laser are in unadhered state simultaneously, and minim gap is arranged simultaneously, thereby microplate or laser bar pressure reduce greatly when making variations in temperature.
Described laser bar of this patent or micro-slice laser can also be except that square other shape, as circle,
2: two supports of embodiment, 101,102 shapes as shown in Fig. 2 a, b, between apply certain pressure, and be heated to uniform temperature, then 104,105,106 of low-melting-point soft metal or soft metal alloys melt and are bonded in fixed support 101, on 102, all the other repeat no more with embodiment 1.Described cooling stand can be more than two.
Embodiment 3: as shown in Fig. 3 a, b, laser bar or micro-slice laser can also be except that square other shape, as circle, cooling stand can a slice, 201 is cooling stand, 202 are the heating optical element, and 203 is low-melting-point soft metal or metal alloy, and 203 for inserting between optical element and the cooling stand by melting direct injection the in back.
Claims (9)
1. optical element cooling construction, be in the louvre of the fin that optical element is arranged at fixing optical element a little less than the heating, it is characterized in that: soft metal that the low temperature of the weak optical element outer surface of described heating is fusible or alloy-layer simultaneously are bonded on the heat radiation hole wall, this soft metal or alloy-layer and heat radiation hole wall are in wet face state, the another side of soft metal or alloy-layer is in the non-infiltration state with the weak optical element of heating, self surface of described fin is by having the cooling stand of effect of impregnation may to constitute to fusible soft metal of specific low temperature or metal alloy, or adopts to contain in the plating of cooling stand upper surface and have the rete of infiltration cooling stand to constitute to fusible soft metal of low temperature or metal alloy.
2. a kind of optical element cooling construction according to claim 1 is characterized in that: described fin is a slice or two or constitutes more than two piece elements, wraps up the weak optical element of described heating in wherein.
3. a kind of optical element cooling construction according to claim 1 is characterized in that: it is laser bar or micro-slice laser microplate or frequency-doubling crystal that the described heating low light level is learned element.
4. a kind of optical element cooling construction according to claim 1 is characterized in that: described soft metal or alloy-layer are indium alloy, low temperature scolding tin.
5. optical element cooling construction preparation method, it is characterized in that: but adopt the soft metal of cold melt or soft metal alloy to be wrapped in the weak optical element skin of heating, and be placed on the surface and but cold melt soft metal or metal alloy had among the fin of fixing optical element of effect of impregnation may, by low-temperature heat, make soft metal or alloy melting simultaneously be bonded on the fin; Another side and optical element are in the non-infiltration state, thereby realize that the microgap is fixed between optical element and the cooling stand, self surface of described fin is by having the cooling stand of effect of impregnation may to constitute to fusible soft metal of specific low temperature or metal alloy, or adopts to contain in the plating of cooling stand upper surface and have the rete of infiltration cooling stand to constitute to fusible soft metal of low temperature or metal alloy.
6. a kind of optical element cooling construction preparation method according to claim 5 is characterized in that: described cold melt soft metal or soft metal alloy directly melt and inject between fin and the weak optical element of heating.
7. a kind of optical element cooling construction preparation method according to claim 5 is characterized in that: described fin is a slice or two or constitutes more than two piece elements.
8. a kind of optical element cooling construction preparation method according to claim 5 is characterized in that: it is laser bar or micro-slice laser microplate or frequency-doubling crystal that the described heating low light level is learned element.
9. a kind of optical element cooling construction preparation method according to claim 5 is characterized in that: described soft metal or soft metal alloy adopt 90～150 ℃ temperature fusing indium alloy or low temperature scolding tin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008100715526A CN101335421B (en) | 2008-08-05 | 2008-08-05 | Optical element cooling construction and preparing method thereof |
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| CN2008100715526A CN101335421B (en) | 2008-08-05 | 2008-08-05 | Optical element cooling construction and preparing method thereof |
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| CN101335421A CN101335421A (en) | 2008-12-31 |
| CN101335421B true CN101335421B (en) | 2011-05-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102508341A (en) * | 2011-11-22 | 2012-06-20 | 华为技术有限公司 | Optical module |
| CN104426048B (en) * | 2013-08-29 | 2018-02-02 | 大族激光科技产业集团股份有限公司 | It is a kind of heat sink and there is the heat sink laser |
| JP6303481B2 (en) * | 2013-12-20 | 2018-04-04 | セイコーエプソン株式会社 | Light emitting device module, quantum interference device, atomic oscillator, electronic device, and moving object |
| CN105470806B (en) * | 2016-01-20 | 2018-06-08 | 福建中科晶创光电科技有限公司 | A kind of assembly method for improving miniature all solid state laser stability |
| CN108287435A (en) * | 2018-01-31 | 2018-07-17 | 惠州市华星光电技术有限公司 | A kind of side entrance back module and preparation method thereof and liquid crystal display device |
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