CN105490076A - Capacitive sensor lead sealing plug suitable for vacuum or high-voltage environment - Google Patents
Capacitive sensor lead sealing plug suitable for vacuum or high-voltage environment Download PDFInfo
- Publication number
- CN105490076A CN105490076A CN201610005056.5A CN201610005056A CN105490076A CN 105490076 A CN105490076 A CN 105490076A CN 201610005056 A CN201610005056 A CN 201610005056A CN 105490076 A CN105490076 A CN 105490076A
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- China
- Prior art keywords
- bonding wire
- cone
- lead
- sensor lead
- insulation
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Classifications
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- 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
- H01R13/46—Bases; Cases
- H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
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- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a capacitive sensor lead sealing plug suitable for a vacuum or high-voltage environment. The vacuum or high-voltage environment required by a capacitive sensor can be kept by the sealing plug for a long period of time, so that the capacitive sensor accurately obtains measurement information. The lead sealing plug comprises a sensor lead connector and a test instrument lead connector; the sensor lead connector comprises a pipe joint, a shield soldering lug, an insulating cone, a bonding wire cone, a spacing block and a bonding wire plate; the test instrument lead connector comprises an insulating seat, a cable transfer tube and a bonding wire head; a sensor lead passes through the pipe joint; a metal core wire of the lead sequentially passes through the shield soldering lug, the insulating cone and the bonding wire cone and is welded on the end surface of the bonding wire cone; and the metal spacing block is welded on the end surface of the bonding wire cone. A test instrument lead passes through the bonding wire head; the metal core wire of the test instrument lead sequentially passes through the cable transfer tube, the insulating seat and the bonding wire plate and is welded on the surface of the bonding wire plate; the bonding wire plate is in contact with the metal spacing block; and finally the sensor lead and the test instrument lead are connected through a sleeve nut, so that the sealing target is achieved.
Description
Technical field
Invention relates to a kind of sealing plug, is specifically related to a kind of vacuum, high pressure sensor lead-in wire hermetically-sealed construction, belongs to vacuum, high pressure field of sensing technologies.
Background technology
Transducer has a very wide range of applications at China's national defense, space industry, and its applied environment is strict, often requires to use under the environment of vacuum or high pressure.Therefore, the signal of telecommunication of transducer is drawn the plug of measurement space needs to have good sealing, to keep vacuum needed for transducer or hyperbaric environment.
Summary of the invention
In view of this, the invention provides a kind of capacitance type sensor lead-in wire sealing plug be applicable under vacuum, hyperbaric environment, adopt sealing plug can vacuum for a long time needed for holding capacitor formula transducer or hyperbaric environment, thus make capacitance type sensor Obtaining Accurate metrical information.
The described capacitance type sensor lead-in wire sealing plug be applicable under vacuum, hyperbaric environment comprise bored by pipe joint, shielding weld tabs, insulation cone, bonding wire, sensor lead joint that metal spacing block and bonding wire sheet are formed and the test instrumentation pigtail splice that become by insulating base, Splices cable pipe and bonding wire capitiform.
One end of described pipe joint is axially processed with the installing hole of shielding weld tabs and the installing hole of insulation cone along it, and after shielding weld tabs and insulation cone are fixed on respective installing hole, the small end of insulation cone is relative with shielding weld tabs, and large end is concordant with the end face of pipe joint; Be processed with the bellmouth for installing bonding wire cone in described insulation cone, the bus of described bellmouth is parallel with insulation element of a cone; The lead-in wire of described capacitance type sensor is successively through after described pipe joint, shielding weld tabs, insulation cone and bonding wire cone centre bore, the metal core wire of lead-in wire is welded on the end face of described bonding wire cone, simultaneously at the end face welding metal spacing block that described bonding wire is bored, the end face of metal spacing block is parallel with the end face that described bonding wire is bored.
One end of described Splices cable pipe is connected with bonding wire head, and the other end is axially processed with the installing hole for fixed insulation seat along it, and the end of described insulating base embeds installs described bonding wire sheet; After the fairlead of test instrumentation lead-in wire in external environment condition successively through described bonding wire head, Splices cable pipe, insulating base and bonding wire sheet center, be welded on the end face of described bonding wire sheet.
Described sensor lead joint docks with described examination instrument pigtail splice, after metal spacing block in sensor lead joint is contacted with the bonding wire sheet in examination instrument pigtail splice, to be tightly connected described sensor lead joint and described test instrumentation pigtail splice by cap nut.
Beneficial effect:
When capacitance type sensor uses under vacuum or hyperbaric environment, the sealing plug of this kind of version is adopted to draw the signal of telecommunication of transducer, can vacuum effectively needed for holding capacitor formula transducer or hyperbaric environment, thus make capacitance type sensor Obtaining Accurate metrical information.
Accompanying drawing explanation
Fig. 1 is the section of structure of capacitance type sensor provided by the present invention lead-in wire sealing plug.
Wherein: 1-pipe joint, 2-shield weld tabs, 3-insulate cone, 4-cap nut, 5-bonding wire cone, 6-spacer, 7-bonding wire sheet, 8-insulating base, 9-Splices cable pipe, 10-bonding wire head.
Embodiment
To develop simultaneously embodiment below in conjunction with accompanying drawing, describe the present invention.
The present embodiment provides a kind of when capacitance type sensor uses under vacuum or hyperbaric environment, can keep the lead-in wire sealing plug of vacuum needed for transducer or hyperbaric environment for a long time, thus make capacitance type sensor Obtaining Accurate metrical information.
The structure of this lead-in wire sealing plug as shown in Figure 1, comprise the sensor lead joint formed by pipe joint 1, shielding weld tabs 2, insulation cone 3, bonding wire cone 5, spacer 6 and bonding wire sheet 7 and the test instrumentation pigtail splice formed by insulating base 8, Splices cable pipe 9 and bonding wire head 10, described sensor lead joint and examination instrument pigtail splice are linked together by cap nut 4.
Be specially: described pipe joint 1 is processed with external screw thread with the outer circumference surface of test instrumentation pigtail splice opposite side, axially be processed with the installing hole of shielding weld tabs 2 and the installing hole of insulation cone 3 at this end along it simultaneously, after shielding weld tabs 2 and insulation cone 3 are fixed on respective installing hole, the small end of insulation cone 3 is relative with shielding weld tabs 2, and large end is concordant with the end face of pipe joint 1.Be processed with the bus bellmouth parallel with its bus in described insulation cone 3, bonding wire cone 5 is installed in this bellmouth.Described pipe joint 1, shielding weld tabs 2, insulation cone 3 and bonding wire 5 centers of boring all are processed with the fairlead for making sensor lead pass, after the fairlead of sensor lead successively through pipe joint 1, shielding weld tabs 2, insulation cone 3 and bonding wire cone 5, scolding tin is utilized the metal core wire of sensor lead to be welded on the surface of bonding wire cone 5, then at the surface coverage layer of metal spacer 6 of bonding wire cone 5, by scolding tin firm welding, and ensure that the surface of spacer 6 is parallel with the surface that bonding wire bores 5.For ensureing the stable of sensor signal, the screen of described sensor lead is fixed together with shielding weld tabs 2.
One end of described Splices cable pipe 9 is threaded with bonding wire head 10, and the other end is relative with sensor lead joint.External screw thread is processed with at the outer circumference surface of itself and sensor lead joint opposite end, axially be processed with the installing hole of insulating base 8 along it simultaneously, insulating base 8 is fixed on after in this installing hole, processes the installing hole for installing bonding wire sheet 7 at itself and sensor lead joint opposite end.Described bonding wire head 10, Splices cable pipe 9, insulating base 8 and bonding wire sheet 7 center are all processed with for making test instrumentation go between the fairlead passed, test instrumentation lead-in wire in external environment condition is successively by after the fairlead of bonding wire head, Splices cable pipe, insulating base and bonding wire sheet, be welded on the surface of bonding wire sheet 7, and by smooth for the surface finish of bonding wire sheet 7.
Then sensor lead joint is relative with examination instrument pigtail splice, now the bonding wire sheet 7 tried in instrument pigtail splice contacts with the metal spacing block 6 in sensor lead joint, finally by cap nut 4, sensor lead joint and test instrumentation pigtail splice are coupled together, reach the object of sealing.
In this lead-in wire sealing plug, adopt the insulating material of pyramidal structure (insulation cone) to isolate the metallic pipe coupling (pipe joint) of sensor lead and plug, both ensure that the signal of telecommunication effectively transmitted between transducer and test instrumentation, also met the sealing demand of sensor measurement environment.
Sealing structure can bear the pressure difference of 25MPa, and leak rate is less than 1 × 10-7Pam
3/ s, processing is simple, is easy to batch production.Through repeatedly, for a long time changing test, sealing structural behaviour is reliable, to the measurement index of capacitance type sensor without any adverse effect, is applicable to the transmission of the capacitance type sensor signal of telecommunication under vacuum, high pressure conditions.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. be applicable to the capacitance type sensor lead-in wire sealing plug under vacuum, hyperbaric environment, it is characterized in that, comprise and bore the sensor lead joint that (5), metal spacing block (6) and bonding wire sheet (7) are formed and the test instrumentation pigtail splice formed by insulating base (8), Splices cable pipe (9) and bonding wire head (10) by pipe joint (1), shielding weld tabs (2), insulation cone (3), bonding wire;
One end of described pipe joint (1) is axially processed with the installing hole of shielding weld tabs (2) and the installing hole of insulation cone (3) along it, after shielding weld tabs (2) and insulation cone (3) are fixed on respective installing hole, the small end of insulation cone (3) is relative with shielding weld tabs (2), and large end is concordant with the end face of pipe joint (1); Be processed with the bellmouth for installing bonding wire cone (5) in described insulation cone (3), the bus of described bellmouth is parallel with the bus that (3) are bored in insulation; The lead-in wire of described capacitance type sensor is successively through after described pipe joint (1), shielding weld tabs (2), insulation cone (3) and bonding wire cone (5) centre bore, the metal core wire of lead-in wire is welded on the end face of described bonding wire cone (5), simultaneously at end face welding metal spacing block (6) of described bonding wire cone (5), the end face of metal spacing block (6) bores (5) end face with described bonding wire is parallel;
One end of described Splices cable pipe (9) is connected with bonding wire head (10), the other end is axially processed with the installing hole for fixed insulation seat (8) along it, and the end of described insulating base (8) embeds installs described bonding wire sheet (7); After the fairlead of test instrumentation lead-in wire in external environment condition successively through described bonding wire head (10), Splices cable pipe (9), insulating base (8) and bonding wire sheet (7) center, be welded on the end face of described bonding wire sheet (7);
Described sensor lead joint docks with described examination instrument pigtail splice, after metal spacing block in sensor lead joint (6) is contacted with the bonding wire sheet (7) in examination instrument pigtail splice, to be tightly connected described sensor lead joint and described test instrumentation pigtail splice by cap nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005056.5A CN105490076B (en) | 2016-01-04 | 2016-01-04 | Suitable for the capacitance type sensor lead-in wire sealing plug under vacuum or hyperbaric environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005056.5A CN105490076B (en) | 2016-01-04 | 2016-01-04 | Suitable for the capacitance type sensor lead-in wire sealing plug under vacuum or hyperbaric environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105490076A true CN105490076A (en) | 2016-04-13 |
| CN105490076B CN105490076B (en) | 2018-03-16 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610005056.5A Active CN105490076B (en) | 2016-01-04 | 2016-01-04 | Suitable for the capacitance type sensor lead-in wire sealing plug under vacuum or hyperbaric environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105490076B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354663A (en) * | 2017-08-14 | 2017-11-17 | 无锡小天鹅股份有限公司 | Roller washing machine |
| CN107488969A (en) * | 2017-08-14 | 2017-12-19 | 无锡小天鹅股份有限公司 | Rotary drum washing machine |
| CN108899659A (en) * | 2018-08-20 | 2018-11-27 | 中国工程物理研究院总体工程研究所 | Sealed electrical connector and preparation method thereof |
| CN112531399A (en) * | 2020-12-03 | 2021-03-19 | 陕西航天机电环境工程设计院有限责任公司 | Cabin-penetrating sealing electric connector |
| CN114166407A (en) * | 2021-10-20 | 2022-03-11 | 中国航发四川燃气涡轮研究院 | Sealing device for capillary pressure test lead tube |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2711836B1 (en) * | 1993-10-28 | 1996-02-02 | Meta Ceram Quartex | Watertight crossing of microwave coaxial line, forming accessory support, for containment enclosure. |
| EP1496576A2 (en) * | 2003-07-09 | 2005-01-12 | Pfisterer Kontaktsysteme GmbH & Co. KG | Device for electrical connection with a power supply line for medium or high voltage and process for manufacturing an insulatng portion of such a device |
| CN102904103A (en) * | 2012-09-06 | 2013-01-30 | 西北核技术研究所 | Radio frequency coaxial connector with bidirectional high-voltage sealing function |
| CN103490220A (en) * | 2013-09-23 | 2014-01-01 | 苏州华旃航天电器有限公司 | High temperature and high pressure seal electric connector for preventing softened plastic from flowing |
| CN205282762U (en) * | 2016-01-04 | 2016-06-01 | 北京航天试验技术研究所 | Sealed plug of capacitive sensor lead wire suitable for under vacuum, high voltage ring border |
-
2016
- 2016-01-04 CN CN201610005056.5A patent/CN105490076B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2711836B1 (en) * | 1993-10-28 | 1996-02-02 | Meta Ceram Quartex | Watertight crossing of microwave coaxial line, forming accessory support, for containment enclosure. |
| EP1496576A2 (en) * | 2003-07-09 | 2005-01-12 | Pfisterer Kontaktsysteme GmbH & Co. KG | Device for electrical connection with a power supply line for medium or high voltage and process for manufacturing an insulatng portion of such a device |
| CN102904103A (en) * | 2012-09-06 | 2013-01-30 | 西北核技术研究所 | Radio frequency coaxial connector with bidirectional high-voltage sealing function |
| CN103490220A (en) * | 2013-09-23 | 2014-01-01 | 苏州华旃航天电器有限公司 | High temperature and high pressure seal electric connector for preventing softened plastic from flowing |
| CN205282762U (en) * | 2016-01-04 | 2016-06-01 | 北京航天试验技术研究所 | Sealed plug of capacitive sensor lead wire suitable for under vacuum, high voltage ring border |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354663A (en) * | 2017-08-14 | 2017-11-17 | 无锡小天鹅股份有限公司 | Roller washing machine |
| CN107488969A (en) * | 2017-08-14 | 2017-12-19 | 无锡小天鹅股份有限公司 | Rotary drum washing machine |
| CN108899659A (en) * | 2018-08-20 | 2018-11-27 | 中国工程物理研究院总体工程研究所 | Sealed electrical connector and preparation method thereof |
| CN112531399A (en) * | 2020-12-03 | 2021-03-19 | 陕西航天机电环境工程设计院有限责任公司 | Cabin-penetrating sealing electric connector |
| CN112531399B (en) * | 2020-12-03 | 2022-06-14 | 陕西航天机电环境工程设计院有限责任公司 | Cabin-penetrating sealing electric connector |
| CN114166407A (en) * | 2021-10-20 | 2022-03-11 | 中国航发四川燃气涡轮研究院 | Sealing device for capillary pressure test lead tube |
| CN114166407B (en) * | 2021-10-20 | 2023-06-30 | 中国航发四川燃气涡轮研究院 | Sealing device for capillary pressure test lead tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105490076B (en) | 2018-03-16 |
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