CN114124064A - Light guide switch packaging structure - Google Patents
Light guide switch packaging structure Download PDFInfo
- Publication number
- CN114124064A CN114124064A CN202111237510.7A CN202111237510A CN114124064A CN 114124064 A CN114124064 A CN 114124064A CN 202111237510 A CN202111237510 A CN 202111237510A CN 114124064 A CN114124064 A CN 114124064A
- Authority
- CN
- China
- Prior art keywords
- conductive
- insulating
- conductive shell
- light
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000005304 optical glass Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 1
- ZNKMCMOJCDFGFT-UHFFFAOYSA-N gold titanium Chemical compound [Ti].[Au] ZNKMCMOJCDFGFT-UHFFFAOYSA-N 0.000 claims 1
- 229910001258 titanium gold Inorganic materials 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/064—Hermetically-sealed casings sealed by potting, e.g. waterproof resin poured in a rigid casing
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The invention relates to a photoconductive switch packaging structure which comprises a transverse cylindrical conductive shell with openings at two ends, wherein the opening at the left end of the conductive shell is sealed by a light-transmitting sheet, a conductive ring sheet is arranged in the middle part in the conductive shell, an insulating ring sheet is sealed and blocked at the right end opening of the conductive shell, and a conductive rod transversely penetrates through the center of the insulating ring sheet. The invention has the beneficial effects that: the inside accessible of conductive shell body can dismantle the sub-assembly and constitute sealed space, and two electrodes of light guide switch connect electrically conductive ring piece respectively and then connect electrically conductive shell body and conducting rod and directly draw forth to realize the electricity of light guide switch and external circuit and be connected. Transparent insulating medium is filled into the sealed space, so that the periphery of the photoconductive switch is completely wrapped by the transparent insulating medium, the pressure resistance strength of the photoconductive switch is improved, and the service life of the photoconductive switch is prolonged.
Description
Technical Field
The invention relates to a light guide switch packaging structure.
Background
The photoconductive switch is a novel ultra-fast semiconductor electronic device, is a key device for generating high-power ultra-short pulses, and controls the conductivity of a semiconductor material by laser triggering to realize the on-off of the switch. Compared with a switch in the traditional pulse power field, the photoconductive switch has the advantages of short closing time (ps magnitude), small jitter time (ps magnitude), low switch inductance (sub-nH magnitude), high repetition frequency, electromagnetic interference resistance, light weight, small size and the like, and can work with ultrahigh power capacity under ultrahigh repetition frequency. The packaging structure is crucial to a high-voltage switch device and can protect the device. However, the stability and reliability of the existing photoconductive switch packaging structure in a high-voltage and high-current working environment are difficult to guarantee.
Disclosure of Invention
In order to solve the technical defects, the invention provides the photoconductive switch packaging structure which can realize comprehensive protection on the photoconductive switch and improve the service life of the photoconductive switch and the working voltage of the whole device.
The invention is realized by the following measures:
a light guide switch packaging structure comprises a transverse cylindrical conductive shell with openings at two ends, a light transmitting sheet is sealed and plugged at the left end opening of the conductive shell, a conductive circular ring sheet is arranged at the middle part in the conductive shell, the outer circumferential surface of the conductive circular ring sheet is tightly attached to the inner circumferential surface of the conductive shell, a through hole is formed in the center of the conductive circular ring sheet, an insulating circular ring sheet is sealed and plugged at the right end opening of the conductive shell, a conductive rod transversely penetrates through the center of the insulating circular ring sheet, the left end of the conductive rod penetrates through the through hole, a gap is reserved between the outer surface of the conductive rod and the inner surface of the through hole, a light guide switch chip is arranged at the gap, two electrodes of the light guide switch chip are respectively connected with the conductive circular ring sheet and the conductive rod, the right end of the conductive rod extends to the right side of the insulating circular ring sheet, the gap between the conductive circular ring sheet and the light transmitting sheet, the gap around the light guide switch chip and the conductive shell between the conductive circular ring sheet and the insulating circular ring sheet are filled with transparent insulating medium And (4) quality.
The cap is sleeved on the outer side of the light transmitting sheet, the edge of the cap is buckled on the outer side of the end part of the conductive shell and is connected together through threads, the center of the end part of the conductive shell is provided with an observation window, and a sealing ring is arranged between the light transmitting sheet and the end surface around the opening at the left end of the conductive shell.
The insulating circular ring piece is provided with an injection hole, a detachable plugging screw is plugged into the injection hole, and the end surface on the right side of the insulating circular ring piece is coated with an insulating curing glue layer.
The inner circumferential surface of the conductive shell is provided with threads, and the outer circumferential surface of the conductive circular ring piece and the outer circumferential surface of the insulating circular ring piece are connected with the inner circumferential surface of the conductive shell through threads.
The end face around the opening at the left end of the conductive shell is provided with a circular groove, the sealing ring is embedded in the groove, and the thickness of the sealing ring is larger than the depth of the groove.
The transparent insulating medium is transparent insulating gas or transparent insulating liquid, the conductive shell, the conductive ring piece and the conductive rod are made of pure copper materials, the insulating ring piece is made of a material with certain strength and good insulativity, and the light transmitting piece is made of high-light-transmission optical glass.
Preferably, the insulating circular ring piece is made of AlN ceramic or polytetrafluoroethylene insulating material.
The invention has the technical characteristics and advantages that:
the inside accessible of conductive shell body can dismantle the sub-assembly and constitute sealed space, and two electrodes of light guide switch connect electrically conductive ring piece respectively and then connect electrically conductive shell body and conducting rod and directly draw forth to realize the electricity of light guide switch and external circuit and be connected. Transparent insulating medium is filled into the sealed space, so that the periphery of the photoconductive switch is completely wrapped by the transparent insulating medium, the pressure resistance strength of the photoconductive switch is improved, and the service life of the photoconductive switch is prolonged.
Drawings
FIG. 1 is a schematic front view of the present invention;
in the figure: 1. capping; 2. a light transmitting sheet; 3. a seal ring; 4. a photoconductive switch chip; 5. a conductive ring sheet; 6. a conductive housing; 7. an insulating ring sheet; 8. plugging screws; 9. a conductive rod; 10. a transparent insulating medium; 11. and (5) insulating and curing the glue layer.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1, an optical switch packaging structure includes a horizontal cylindrical conductive housing 6 with two open ends, a transparent sheet 2 is sealed and plugged at the left end opening of the conductive housing 6, a conductive circular sheet 5 is arranged at the middle part in the conductive housing 6, the outer circumferential surface of the conductive circular sheet 5 is tightly attached to the inner circumferential surface of the conductive housing 6, a through hole is formed in the center of the conductive circular sheet 5, an insulating circular sheet 7 is sealed and plugged at the right end opening of the conductive housing 6, a conductive rod 9 transversely penetrates through the center of the insulating circular sheet 7, the left end of the conductive rod 9 penetrates through the through hole, a gap is left between the outer surface of the conductive rod 9 and the inner surface of the through hole, an optical switch chip 4 is arranged at the gap, two electrodes of the optical switch chip 4 are respectively connected with the conductive circular sheet 5 and the conductive rod 9, the right end of the conductive rod 9 extends to the right side of the insulating circular sheet 7, a gap is formed between the conductive circular sheet 5 and the transparent sheet 2, Transparent insulating media 10 are filled in the interval gaps around the photoconductive switch chip 4 and the conductive shell 6 between the conductive circular ring piece 5 and the insulating circular ring piece 7. The coplanar electrode design of the photoconductive switch chip 4 and the back-emitting laser triggering mode, one electrode of the photoconductive switch chip 4 is welded on the conductive circular ring piece 5 and then is combined with the conductive shell 6 through threads, and the other electrode of the photoconductive switch chip 4 is welded with the conductive rod 9, so that two leading-out ends can be obtained to realize electric connection respectively. The conductive ring sheet 5 and the conductive rod 9 are welded with the electrode of the photoconductive switch chip 4 in sequence by welding. And the transparent insulating medium 10 is filled into the sealed space, so that the periphery of the photoconductive switch is completely wrapped by the transparent insulating medium 10, the service life of the photoconductive switch is prolonged, and the working voltage of the whole device is improved.
The cover has block 1 outside the printing opacity piece 2, and block 1 edge is detained in the 6 tip outsides of electrically conductive casing and is in the same place through threaded connection, and 6 tip centers of electrically conductive casing are opened there is the observation window, is provided with sealing washer 3 between printing opacity piece 2 and the terminal surface around the opening of the 6 left ends of electrically conductive casing. In order to improve the sealing property, the end surface around the opening at the left end of the conductive shell 6 is provided with a circular groove, and the sealing ring 3 is embedded in the groove. The cap 1 is provided with a window and can be combined with the light-transmitting sheet 2 to form a light-transmitting sealed window; the cap 1 can be screwed with one end of the conductive shell 6 with external threads, and the good sealing effect of the port is realized through the close contact of the light-transmitting sheet 2 and the sealing ring 3. The material of the light-transmitting sheet 2 can adopt a high-light-transmitting optical glass sheet, and the glass sheet can be subjected to film coating treatment aiming at different laser wavelengths.
The insulating circular ring piece 7 is provided with an injection hole, the injection hole is filled with a detachable plugging screw 8, and the end surface on the right side of the insulating circular ring piece 7 is coated with an insulating curing glue layer 11. The inner circumferential surface of the conductive shell 6 is provided with threads, and the outer circumferential surface of the conductive circular ring piece 5 and the outer circumferential surface of the insulating circular ring piece 7 are both in threaded connection with the inner circumferential surface of the conductive shell 6. The conductive ring sheet 5 is provided with a spacing gap with the size larger than that of the photoconductive switch chip 4, so that the transparent insulating medium 10 can be conveniently circulated, and the conductive ring sheet 5 can be conveniently screwed in and out of the conductive shell 6. The size of the central through hole of the insulating circular ring piece 7 is consistent with the size of the bottom surface of the conductive rod 9, the conductive rod 9 and the insulating circular ring piece 7 can be fixed and sealed in relative positions through designing corresponding thread fit or using curing materials such as sealant, and the like, so that the position of the insulating circular ring piece 7 in the shell is moved to realize the control of the position of the conductive rod 9 to realize good welding. The insulating circular ring piece 7 is also provided with a threaded hole with the length equal to the wall thickness, the transparent insulating medium 10 can be filled in the threaded hole, after filling is finished, sealing can be carried out through screws, and then the insulating curing medium is used for curing on the outer surface of the insulating circular ring piece 7. The insulating circular ring piece 7 and the conductive rod 9 can be integrally formed through threads or sealant.
The cap 1, the conductive shell 6, the conductive ring piece 5 and the conductive rod 9 are all made of pure copper materials. Wherein, the pure copper is also called as red copper, which refers to the copper with the highest copper content, the content is 99.5 percent to 99.95 percent, and the pure copper has the properties of good weldability, plasticity, corrosion resistance, excellent conductive property and the like.
The insulating ring piece 7 may be made of an insulating material such as AlN ceramic or a polytetrafluoroethylene material. The light-transmitting sheet 2 is a high-light-transmitting optical glass sheet and can be used for coating films on different laser wavelengths. The blocking screw 8 may be a metal screw or a plastic screw. The sealing ring 3 can be made of fluorine rubber, silica gel and other materials. The insulating curing glue can be epoxy resin glue and the like. The transparent insulating medium 10 may be a transparent insulating material such as a transparent insulating gas or a transparent insulating liquid. The transparent insulating gas can adopt sulfur hexafluoride; the insulating liquid can be fluorinated liquid, liquid silica gel, insulating oil or the like.
The foregoing is only a preferred embodiment of this patent, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of this patent, and these modifications and substitutions should also be regarded as the protection scope of this patent.
Claims (6)
1. A light guide switch package, comprising: comprises a horizontal cylindrical conductive shell with two open ends, a light transmitting sheet is sealed and blocked at the left end opening of the conductive shell, a conductive ring sheet is arranged in the middle part in the conductive shell, the outer circumferential surface of the conductive circular ring sheet is tightly attached to the inner circumferential surface of the conductive shell, a through hole is formed in the center of the conductive circular ring sheet, an insulating circular ring sheet is sealed and blocked at the opening at the right end of the conductive shell, a conductive rod transversely penetrates through the center of the insulating circular ring piece, the left end of the conductive rod penetrates through the through hole, a gap is reserved between the outer surface of the conductive rod and the inner surface of the through hole, the utility model discloses a portable light guide switch, including interval space, conducting ring piece, conducting rod, light-transmitting piece, light guide switch chip, conducting shell, light-transmitting piece, conducting shell, light-transmitting piece, light-guide switch chip, conducting shell, light-guide switch chip and conducting shell.
2. The lightguide switch packaging structure of claim 1, wherein: the transparent sheet is sleeved with a cap, the edge of the cap is buckled on the outer side of the end part of the conductive shell and is connected together through threads, the center of the end part of the conductive shell is provided with an observation window, and a sealing ring is arranged between the transparent sheet and the end surface around the opening at the left end of the conductive shell.
3. The lightguide switch packaging structure of claim 1, wherein: the insulating ring piece is provided with an injection hole, a detachable plugging screw is plugged into the injection hole, and the end surface on the right side of the insulating ring piece is coated with an insulating curing glue layer.
4. The lightguide switch packaging structure of claim 1, wherein: the inner circumferential surface of the conductive shell is provided with threads, and the outer circumferential surface of the conductive circular ring piece and the outer circumferential surface of the insulating circular ring piece are connected with the inner circumferential surface of the conductive shell through threads.
5. The lightguide switch packaging structure of claim 2, wherein: the end face around the opening at the left end of the conductive shell is provided with a circular groove, and the sealing ring is embedded in the groove, so that the sealing effect is achieved.
6. The lightguide switch packaging structure of claim 1, wherein: the transparent insulating medium can adopt transparent insulating gas, insulating liquid or insulating glue and the like, the conductive shell, the conductive ring piece and the conductive rod can adopt metal conductive materials such as pure copper and titanium gold, the insulating ring piece can adopt insulating materials such as AlN ceramic and polytetrafluoroethylene, and the light-transmitting piece adopts high-light-transmission optical glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111237510.7A CN114124064B (en) | 2021-10-22 | 2021-10-22 | Photoconductive switch packaging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111237510.7A CN114124064B (en) | 2021-10-22 | 2021-10-22 | Photoconductive switch packaging structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114124064A true CN114124064A (en) | 2022-03-01 |
| CN114124064B CN114124064B (en) | 2024-03-26 |
Family
ID=80376400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111237510.7A Active CN114124064B (en) | 2021-10-22 | 2021-10-22 | Photoconductive switch packaging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114124064B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030003356A1 (en) * | 2000-02-02 | 2003-01-02 | Quallion Llc | Bipolar electronics package |
| CN1499687A (en) * | 2002-11-06 | 2004-05-26 | 三菱电机株式会社 | Metallic locking shutter |
| CN201417350Y (en) * | 2008-12-17 | 2010-03-03 | 福建福晶科技股份有限公司 | Electro-optical switch with adjustable optical window sheets |
| CN201984991U (en) * | 2011-04-22 | 2011-09-21 | 常州盛士达传感器有限公司 | Pressure switch |
| CN107743031A (en) * | 2017-11-30 | 2018-02-27 | 大连理工大学 | A kind of laser triggering multi-stage vacuum switch |
-
2021
- 2021-10-22 CN CN202111237510.7A patent/CN114124064B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030003356A1 (en) * | 2000-02-02 | 2003-01-02 | Quallion Llc | Bipolar electronics package |
| CN1499687A (en) * | 2002-11-06 | 2004-05-26 | 三菱电机株式会社 | Metallic locking shutter |
| CN201417350Y (en) * | 2008-12-17 | 2010-03-03 | 福建福晶科技股份有限公司 | Electro-optical switch with adjustable optical window sheets |
| CN201984991U (en) * | 2011-04-22 | 2011-09-21 | 常州盛士达传感器有限公司 | Pressure switch |
| CN107743031A (en) * | 2017-11-30 | 2018-02-27 | 大连理工大学 | A kind of laser triggering multi-stage vacuum switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114124064B (en) | 2024-03-26 |
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