CN210254765U - Sapphire optical window and metal packaging structure of brazing - Google Patents
Sapphire optical window and metal packaging structure of brazing Download PDFInfo
- Publication number
- CN210254765U CN210254765U CN201921155418.4U CN201921155418U CN210254765U CN 210254765 U CN210254765 U CN 210254765U CN 201921155418 U CN201921155418 U CN 201921155418U CN 210254765 U CN210254765 U CN 210254765U
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- Prior art keywords
- optical window
- hole
- ring
- sapphire optical
- gravity
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- 230000003287 optical effect Effects 0.000 title claims abstract description 67
- 229910052594 sapphire Inorganic materials 0.000 title claims abstract description 51
- 239000010980 sapphire Substances 0.000 title claims abstract description 51
- 239000002184 metal Substances 0.000 title claims abstract description 47
- 238000005219 brazing Methods 0.000 title claims abstract description 21
- 238000004806 packaging method and process Methods 0.000 title description 11
- 230000005484 gravity Effects 0.000 claims abstract description 36
- 238000003825 pressing Methods 0.000 claims description 19
- 229910000679 solder Inorganic materials 0.000 claims description 17
- 238000003466 welding Methods 0.000 abstract description 12
- 238000005538 encapsulation Methods 0.000 abstract description 8
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000004021 metal welding Methods 0.000 abstract description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Abstract
The embodiment of the utility model discloses sapphire optical window and metal package structure of brazing, which comprises an outer shell, the curb plate, optical window support and gravity briquetting, the curb plate sets up in the side of shell, the bottom surface of shell is provided with first through-hole, the side of gravity briquetting is laminated with the medial surface of curb plate, gravity briquetting lower surface is provided with spacing lug, gravity briquetting and optical window support swing joint, the optical window support includes the base, go-between and spacing ring, a pedestal, go-between and the coaxial setting of spacing ring, be provided with the second through-hole on the base, second through-hole and go-between, the spacing ring all communicates with each other, the spacing ring sets up in the go-between medial surface, the internal diameter of spacing ring is less than the internal diameter of go-between, the internal diameter of go-between and spacing lug's diameter looks adaptation, the external diameter of go-between and the. The utility model discloses simple structure, convenient operation can supply sapphire optical window and metal cavity to accomplish the metal welding encapsulation to can improve welding efficiency.
Description
Technical Field
The utility model belongs to optoelectronic device encapsulates the field, concretely relates to sapphire optical window and metal package structure of brazing.
Background
In the process of hermetically packaging the sapphire optical window, the sapphire optical window needs to be combined with a metal tube cap or a metal cavity to form a sapphire optical window structure for hermetic packaging, currently, a main packaging mode is completed by adopting a mode of combining organic adhesive (such as epoxy resin), but the organic adhesive is easily affected by external factors (such as high temperature, illumination, oxidation, water, rays, mechanical force and the like) in the using process and generates physical or chemical changes, so that a high polymer material of the organic adhesive is brittle, cracked, discolored, cracked and delaminated, the performance of the organic adhesive is gradually weakened, and even loses the performance, so that the sealing performance of the bonding between the sapphire optical window and the metal fails.
The metal encapsulation sapphire optical window structure is a new direction of the existing sapphire optical window encapsulation, but the encapsulation structure between the sapphire optical window and the metal is still lacked at present, so that the development of a new encapsulation structure between the sapphire optical window and the metal becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that currently there is not packaging structure between sapphire optical window and the metal, the embodiment of the utility model discloses a sapphire optical window and metal package structure of brazing, include: the shell, the curb plate, optical window support and gravity briquetting, the curb plate sets up in the side of shell, the bottom surface of shell is provided with first through-hole, the side of gravity briquetting is laminated with the medial surface of curb plate, gravity briquetting lower surface is provided with spacing lug, gravity briquetting and optical window support swing joint, the optical window support includes the base, go-between and spacing ring, a pedestal, go-between and the coaxial setting of spacing ring, be provided with the second through-hole on the base, second through-hole and go-between, the spacing ring all communicates with each other, the spacing ring sets up in the go-between medial surface, the internal diameter of spacing ring is less than the internal diameter of go-between, the internal diameter of go-between and the diameter looks adaptation of spacing lug, the external diameter of go-between and the.
Optionally, the base and the connection ring are integrally formed.
Optionally, the inner diameter of the second through hole is matched with the inner diameter of the connecting ring.
Optionally, the outer diameter of the limiting ring is matched with the inner diameter of the connecting ring.
Optionally, the gravity pressing block is a rectangular block.
Optionally, the gravity pressing block and the limiting bump are integrally formed.
The beneficial effects of the utility model reside in that:
according to the technical scheme provided by the utility model, the utility model discloses a sapphire optical window and metal package structure of brazing. During the use, at first put into metal cavity, sapphire optical window and solder in proper order on the spacing ring, then utilize the weight of gravity briquetting self, through the effort between spacing concave block control metal cavity, sapphire optical window and the solder, ensure welding position's accuracy, guarantee simultaneously that the welding does not have the welding seam between sapphire optical window and the optical window support for the gas tightness of metal cavity, sapphire optical window reaches the requirement, the utility model discloses simple structure, convenient operation can supply sapphire optical window and metal cavity to accomplish the metal welding encapsulation to can improve welding efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a sapphire optical window and metal packaging brazing structure in an embodiment of the present invention;
fig. 2 is a schematic partial structural view of a sapphire optical window and metal package soldering structure according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an optical window bracket according to an embodiment of the present invention;
fig. 4 is a schematic view of a gravity press block structure according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of a sapphire optical window and metal encapsulation brazing structure in use according to an embodiment of the present invention;
fig. 6 is an enlarged view of a in fig. 5.
Reference numerals: 1-shell, 101-first through hole, 2-side plate, 3-optical window bracket, 301-base, 302 connecting ring, 303-limiting ring, 304-second through hole, 4-gravity pressing block, 401-limiting lug, 5-metal cavity, 6-sapphire optical window and 7-solder
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
In order to solve the problem that still lacks the packaging structure between sapphire optical window and the metal at present, the utility model discloses a sapphire optical window and metal package structure of brazing please refer to fig. 1 to 4, fig. 1 is the embodiment of the utility model provides an in a sapphire optical window and metal package structure of brazing's structure schematic diagram, fig. 2 is the embodiment of the utility model provides an in an embodiment of a sapphire optical window and metal package structure of brazing's local structure schematic diagram, fig. 3 is the utility model provides an in embodiment optical window supporting structure schematic diagram, fig. 4 is the utility model provides an in embodiment gravity briquetting structure schematic diagram, this sapphire optical window and metal package structure of brazing include: the light window comprises a shell 1, a side plate 2, a light window bracket 3 and a gravity pressing block 4, wherein the side plate 2 is arranged on the side surface of the shell 1, the bottom surface of the shell 1 is provided with a first through hole 101, the side surface of the gravity pressing block 4 is attached to the inner side surface of the side plate 2, the lower surface of the gravity pressing block 4 is provided with a limiting lug 401, the gravity pressing block 4 is movably connected with the light window bracket 3, the light window bracket 3 comprises a base 301, the base 301 is provided with a second through hole 304, the second through hole 304 is communicated with the connecting ring 302 and the limiting ring 303, the limiting ring 303 is arranged on the inner side face of the connecting ring 302, the inner diameter of the limiting ring 303 is smaller than that of the connecting ring 302, the inner diameter of the connecting ring 302 is matched with that of the limiting bump 401, the outer diameter of the connecting ring 302 is matched with that of the first through hole 101, and the connecting ring 302 is embedded in the first through hole 101.
In this embodiment, the side of the gravity pressing block 4 is attached to the inner side of the side plate 2, so that the side plate 2 has a supporting force for the gravity pressing block 4, and the gravity pressing block 4 is prevented from toppling over due to unbalanced stress. The bottom surface of the housing 1 is provided with a first through hole 101, the outer diameter of the connecting ring 302 is matched with the inner diameter of the first through hole 101, the connecting ring 302 is embedded in the first through hole 101, and the optical window bracket 3 is fixed on the bottom surface of the housing 1 through the connecting ring 302 and the first through hole 101.
Optionally, the base 301 and the connection ring 302 are integrally formed.
Optionally, the inner diameter of the second through hole 304 is adapted to the inner diameter of the connection ring 302.
Optionally, the outer diameter of the stop collar 303 is adapted to the inner diameter of the coupling collar 302.
Optionally, the gravity pressing block 4 is a rectangular block.
Optionally, the gravity press block 4 and the limiting bump 401 are integrally formed.
It should be noted that, in the embodiment of the present invention, please refer to fig. 1 to fig. 6, the inner diameter of the limiting ring 303 is smaller than the inner diameter of the connecting ring 302, so that, in the use process of the sapphire optical window and metal packaging brazing structure of the present invention, the metal cavity 5, the sapphire optical window 6 and the solder 7 which are sequentially placed in the structure can be clamped on the side surface of the limiting ring 303, and then can be pressed by the gravity press block 4.
In the embodiment of the invention, when the gas tightness detection device is used, firstly, the metal cavity 5, the sapphire optical window 6 and the solder 7 are sequentially placed on the limiting ring 303, then the self weight of the gravity pressing block 4 is utilized, the acting force among the metal cavity 5, the sapphire optical window 6 and the solder 7 is controlled through the limiting bump 401, the accuracy of a welding position is ensured, meanwhile, no welding seam exists between the sapphire optical window 6 and the optical window bracket 3, and the gas tightness of the metal cavity 5 and the sapphire optical window 6 meets the requirement.
In the embodiment of the invention, the solder 7 used in the soldering process is the AuSn20 alloy solder, the AuSn20 solder also has high corrosion resistance, high creep resistance and good heat conduction and electrical conductivity, and the performance of the AuSn20 solder does not change even at the temperature of 250-260 ℃, so that the soldering process can meet the requirement of air tightness in various environments. The gravity pressing block 4 can be adjusted according to the diffusion degree of the AuSn20 alloy solder, for example, when welding is started, the diffusion degree of the AuSn20 solder is lower, a heavier gravity pressing block 4 can be adopted, the welding enters a certain stage, the diffusion degree of the AuSn20 solder is higher, and the gravity pressing block 4 and the optical window bracket 3 are movably connected, so that the gravity pressing block with lighter weight can be replaced.
In the embodiment of the invention, the sapphire optical window 6, the metal cavity 5 and AuSn20 solder are assembled in the sapphire optical window and metal packaging brazing structure, then a gravity press block 4 is used for fixing and compacting, and finally the whole sapphire optical window and metal packaging brazing structure is placed in a sintering tunnel furnace and brazed at the temperature of 300-310 ℃.
The tunnel furnace sintering can accurately control the temperature, atmosphere and time of a hearth and ensure the brazing quality.
To sum up, the utility model discloses a sapphire optical window and metal package structure of brazing. During the use, at first put into metal cavity 5, sapphire optical window 6 and solder 7 in proper order on spacing ring 303, then utilize the weight of gravity briquetting 4 self, through spacing lug 401 control metal cavity 5, the effort between sapphire optical window 6 and the solder 7, ensure welding position's accuracy, guarantee simultaneously that the welding does not have the welding seam between sapphire optical window 6 and the optical window support 3 for metal cavity 5, sapphire optical window 6's gas tightness reach the requirement, the utility model discloses simple structure, convenient operation can supply sapphire optical window and metal cavity to accomplish the metal bonding encapsulation.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that variations and modifications can be made by those skilled in the art without departing from the structure of the invention. These should also be considered as the scope of protection of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. The utility model provides a sapphire optical window and metal package structure of brazing which characterized in that, includes shell, curb plate, optical window support and gravity briquetting, wherein:
the side plate is arranged on the side surface of the shell, and a first through hole is formed in the bottom surface of the shell;
the side face of the gravity pressing block is attached to the inner side face of the side plate, a limiting lug is arranged on the lower surface of the gravity pressing block, and the gravity pressing block is movably connected with the optical window support;
the optical window support comprises a base, a connecting ring and a limiting ring, wherein the base, the connecting ring and the limiting ring are coaxially arranged, a second through hole is formed in the base, and the second through hole is communicated with the connecting ring and the limiting ring;
the limiting ring is arranged on the inner side surface of the connecting ring, and the inner diameter of the limiting ring is smaller than that of the connecting ring;
the inner diameter of the connecting ring is matched with the diameter of the limiting bump, the outer diameter of the connecting ring is matched with the inner diameter of the first through hole, and the connecting ring is embedded in the first through hole.
2. The sapphire optical window and metal package brazing structure of claim 1, wherein the mount and the connection ring are integrally formed.
3. The sapphire optical window and metal package solder structure of claim 1, wherein the inner diameter of the second through hole is matched with the inner diameter of the connection ring.
4. The sapphire optical window and metal package brazing structure of claim 1, wherein an outer diameter of the limiting ring is matched with an inner diameter of the connecting ring.
5. The sapphire optical window and metal package braze structure of claim 1, wherein the gravity press block is a rectangular block.
6. The sapphire optical window and metal package brazing structure of claim 1, wherein the gravity press block and the limiting bump are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921155418.4U CN210254765U (en) | 2019-07-22 | 2019-07-22 | Sapphire optical window and metal packaging structure of brazing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921155418.4U CN210254765U (en) | 2019-07-22 | 2019-07-22 | Sapphire optical window and metal packaging structure of brazing |
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| Publication Number | Publication Date |
|---|---|
| CN210254765U true CN210254765U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921155418.4U Active CN210254765U (en) | 2019-07-22 | 2019-07-22 | Sapphire optical window and metal packaging structure of brazing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749747A (en) * | 2022-04-12 | 2022-07-15 | 昆明凯航光电科技有限公司 | Preparation method for welding sapphire spherical cover and titanium alloy |
-
2019
- 2019-07-22 CN CN201921155418.4U patent/CN210254765U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749747A (en) * | 2022-04-12 | 2022-07-15 | 昆明凯航光电科技有限公司 | Preparation method for welding sapphire spherical cover and titanium alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 101, Unit 1, Building C, No. 6 Juliu Road, Zhukeng Community, Longtian Street, Pingshan District, Shenzhen City, Guangdong Province, China Patentee after: Shenzhen Honggang Optoelectronic Packaging Technology Co.,Ltd. Address before: 518000 1-3 / F, C1 building, long industrial park, JuLongshan No.3 Road, big industrial zone, Longtian street, Pingshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN HONGGANG MECHANISM & EQUIPMENT CO.,LTD. |
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| CP03 | Change of name, title or address |