CN112713556A - High-temperature-resistant sealed armored cable throwing wire - Google Patents
High-temperature-resistant sealed armored cable throwing wire Download PDFInfo
- Publication number
- CN112713556A CN112713556A CN202011520818.8A CN202011520818A CN112713556A CN 112713556 A CN112713556 A CN 112713556A CN 202011520818 A CN202011520818 A CN 202011520818A CN 112713556 A CN112713556 A CN 112713556A
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- China
- Prior art keywords
- armored cable
- sleeve
- bushing
- sealed
- sealing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
Abstract
The invention provides a sealed armored cable wire throwing device which is used for being connected with a piezoelectric vibration sensor and comprises a sleeve connected with the piezoelectric vibration sensor, a bushing and a pipe joint arranged in the sleeve, an armored cable arranged in the bushing, a stainless steel braided sleeve arranged between the bushing and the armored cable, two needle inserting pipes connected with one end of the armored cable, two glass sealing bodies used for sealing the two needle inserting pipes and a double-hole pipe arranged in a shell of the piezoelectric vibration sensor and used for fixing the glass sealing bodies. The device has set up the glass sealing body that plays the structure supporting role, and the glass sealing body has also played certain sealed effect.
Description
Technical Field
The invention belongs to the field of high-temperature sealing, and particularly relates to a high-temperature-resistant sealed armored cable wire throwing.
Background
In recent years, requirements for insulation characteristics or insulation dielectric strength of moisture-absorbing and weak signals on signal transmission paths, such as piezoelectric vibration sensors and thermocouples, are higher and higher along with the upgrade and change of working conditions of application occasions. The products are susceptible to degradation or failure of the performance of insulation sensitive products when subjected to moisture, dirt, oxidation, and volatile material transfer. The requirements of high temperature and sealing of the existing product are generally mutually influenced and cannot be obtained at the same time, the high temperature is difficult to ensure the sealing property, and the use temperature (such as filling silicon rubber, epoxy resin and the like) is difficult to increase when the sealing property is ensured, so that the conventional connector structure is difficult to meet the requirements, and the connector structure also has the problems of connection reliability, electromagnetic compatibility caused by binding of a tail and a shielding layer (particularly double-layer shielding) and the like.
Therefore, a mode of replacing a conventional connector by a wire throwing result is designed, the upper limit of the use temperature can be improved, the requirement on sealing performance can be met, the reliability of products in harsh application environments such as piezoelectric vibration sensors, thermocouples and the like is improved, and the method has very important engineering application value and significance.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a sealed armored cable wire throwing device which is used for replacing a conventional connector and can improve the upper limit of temperature use and meet the requirement of sealing property.
The invention provides a sealed armored cable wire throwing device which is used for being connected with a piezoelectric vibration sensor, and the device comprises: the device comprises a sleeve connected with the piezoelectric vibration sensor, a bushing and a pipe joint arranged in the sleeve, an armored cable arranged in the bushing, a stainless steel woven sleeve arranged between the bushing and the armored cable, two needle inserting pipes connected with one end of the armored cable, two glass sealing bodies used for sealing the two needle inserting pipes and a double-hole pipe arranged in a shell of the piezoelectric vibration sensor and used for fixing the glass sealing bodies.
The sealed armored cable wire throwing device provided by the invention is also characterized in that an inner cavity step is arranged in the lining, and the stainless steel braided sleeve is clamped at the inner cavity step.
The sealed armored cable wire throwing device provided by the invention is also characterized in that a wedge-shaped groove is arranged in the pipe joint.
The sealed armored cable wire throwing device provided by the invention is also characterized in that the pipe joint and the bush are fixed by silver-copper welding, and the bush and the stainless steel braided sleeve are fixed by silver-copper welding.
The sealed armored cable wire throwing device provided by the invention is also characterized in that the pipe joint is fixed with the sensor shell by laser welding.
The sealed armored cable wire throwing device provided by the invention is also characterized in that the needle inserting tube and the double-hole tube are sealed through the glass sealing body to form an intermediary socket.
The sealed armored cable line throwing device provided by the invention is also characterized in that the intermediate socket and the sensor shell are fixedly connected by laser welding.
The sealed armored cable wire throwing device provided by the invention is also characterized in that a metal wire core of the armored cable penetrates through the inner cavity of the contact pin pipe, and the metal wire core of the armored cable is fixed with the contact pin pipe.
The sealed armored cable wire throwing device provided by the invention is also characterized in that the side wall of the sleeve is provided with a sealing hole.
The sealed armored cable wire throwing device provided by the invention is also characterized in that the sealing hole is sealed by argon arc welding.
Advantageous effects
The sealed armored cable wire throwing device provided by the invention is provided with the glass sealing body which plays a structural supporting role, the glass sealing body also plays a certain sealing role, the armored cable and the stainless steel braided sleeve for protection are all connected and fixed by the metal parts through silver brazing, and finally, the outer sleeve is welded through argon arc welding and all-metal sealing, so that the double effects of high temperature and sealing are realized, the butt joint of the outlet wire of the slender and heavy armored cable and the outlet wire of the sensor and the fracture in the production process are avoided, and the hidden stress damage of the product is reduced.
Drawings
FIG. 1 is a diagram illustrating a state of use of a sealed armored cable line throwing apparatus according to the present invention;
FIG. 2 is a schematic structural diagram of a dual-hole tube according to an embodiment of the present invention;
FIG. 3 is a schematic view of a needle cannula according to an embodiment of the present invention;
fig. 4 is a schematic structural view of the pipe joint according to the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a bushing according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a bushing according to an embodiment of the present invention.
Detailed Description
The present invention is further described in detail with reference to the drawings and examples, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functional, methodological, or structural equivalents of these embodiments or substitutions may be included in the scope of the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "central", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only used for convenience in describing and simplifying the description of the present invention, but do not indicate or imply that the referred device or element 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," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1 to 6, the present embodiment provides a sealed armored cable line throwing device for connecting with a piezoelectric vibration sensor, the device comprising: the vibration sensor comprises a sleeve 6 connected with the piezoelectric vibration sensor, a lining 7 and a pipe joint 5 which are arranged in the sleeve 6, an armored cable 9 arranged in the lining 7, a stainless steel braided sleeve 8 arranged between the lining 7 and the armored cable 9, two needle inserting pipes 4 connected with one ends of the armored cable 9, two glass sealing bodies 3 used for sealing the two needle inserting pipes 4 and a double-hole pipe 2 arranged in a piezoelectric vibration sensor shell 1 and used for fixing the glass sealing bodies 3. The whole device shell part is made of a material capable of improving the three-proofing capability. The armored cable 9 may be a two-core armored cable or a single-core armored cable.
In the embodiment, the whole cable wire throwing device is made of metal, magnesium oxide filling powder and packaging glass, has no organic medium and has the high temperature resistance of not less than 500 ℃. The device realizes structural air tightness through fusion welding or brazing by a sleeve 6, a lining, a 7 stainless steel braided sleeve 8 and an armored cable 9. If the metal wire core of the inner cavity armored cable 9 is subjected to melting welding at the end part of the contact pin pipe, the inner cavity of the wiring part and the inner cavity of the sensor shell 1 can be hermetically sealed. The wire stripping end of the armored cable 9 can be packaged by glass, so that the air tightness is further improved. The whole device has a compact structure, does not need tail accessories, and avoids stress concentration in welding and use due to the stress ring structure at the welding position of the bushing. The structural design of the bush can realize the welding fixation of the single-layer stainless steel braided sleeve and the double-layer stainless steel braided sleeve of the armored cable 9, and the anti-electromagnetic interference capability is improved. The whole cable wire throwing device is welded in an all-metal sealing mode, so that the requirement on the air tightness of the internal glass package can be properly reduced, the welding method for welding parts in the inner cavity relatively does not need special requirements, and the fixed needle inserting tube 4 can be of a solid structure according to the requirement. The armored cable 9 can be designed into a single-core structure or a multi-core structure according to requirements. The tubular structure pin structure facilitates the operability of threading and wiring inside and outside the connector, and the pipe joint side windowing structure increases the visual field space of welding operation.
In some embodiments, the liner 7 has an inner cavity step therein, and the stainless steel braided sleeve 8 is clamped at the inner cavity step. The structure of the bush 7 can realize the welding fixation of the single-layer and double-layer stainless steel braided sleeves 8 of the armored cable 9, and the anti-electromagnetic interference capability is improved.
In some embodiments, the pipe joint 5 is provided with a wedge-shaped groove.
In some embodiments, the pipe joint 5 and the bush 7 are fixed by silver-copper welding, and the bush 7 and the stainless steel braided sleeve 8 are fixed by silver-copper welding. After the armored cable 9 is welded and fixed with the sensor shell 1 through the pipe joint 5, the needle inserting pipe 4 and the metal wire core of the armored cable 9 are fixed relatively, and process damage caused by hanging and bending of long and heavy armored cables in the production operation process is avoided.
In some embodiments, the pipe joint 5 is fixed to the sensor housing 1 by laser welding.
In some embodiments, the cannula tube 4 and the double-hole tube 2 are sealed and connected by a glass sealing body 3 to form an intermediate socket.
In some embodiments, the intermediate socket is fixed to the sensor housing 1 by laser welding.
In some embodiments, the pipe joint 5 is provided with notches at both sides thereof, and the sensor signal lead wire passing through the cannula tube 4 and the metal wire core of the armored cable 9 are fusion-welded at the notches.
In some embodiments, the metal core of the two-core armored cable 9 passes through the inner cavity of the needle tube 4 to serve as a signal lead inside the sensor, and the metal core of the two-core armored cable 9 is fixed with the needle tube 4. The metal wire core of the armored cable 9 is relatively fixed with the signal lead in the sensor shell 1, all shell parts are welded into an integrated wire throwing, and the structure strength and the reliability are high.
In some embodiments, the sleeve 6 has a sealing hole on its sidewall. The sealing hole is sealed by argon arc welding. And the sealing hole on the side wall of the sleeve 6 can ensure the final insulation performance of the whole wire throwing device and then seal welding.
The assembly flow of the above embodiment is as follows:
and stripping a metal wire core of the double-core armored cable 9 according to the wiring length, performing glass sintering at the wire stripping end according to the requirement, adjusting the angle of the outgoing wire of the armored cable 9 and the side notch of the pipe joint 5 according to the requirement, and performing vacuum brazing or silver-copper welding filler at the wedge-shaped bowl opening at the matching part of the double-core armored cable 9 and the pipe joint 5. Pressing the double-layer or single-layer stainless steel braided sleeve 8 by using the bushing 7 and then abutting against the matching part of the stainless steel braided sleeve 8 and the step opening of the pipe joint 5, and forming the high-temperature cable assembly at the matching part of the stainless steel braided sleeve 8, the bushing 7 and the pipe joint 5 by using the silver-copper welding filler.
And the pin tube 4 is sealed in the double-hole tube 2 by the glass sealing body 3 to form an intermediary socket, and the intermediary socket is plugged into the sensor shell 1 to adjust the wire outlet angle and then the matching part of the pin tube and the double-hole tube is welded and fixed by laser welding.
After aligning the high-temperature cable assembly with the outlet direction of the medium socket, the pipe joint 5 of the high-temperature cable assembly is fixed with the sensor shell 1 by laser welding. And a signal lead inside the sensor penetrates through the needle inserting tube 4 and then is melted on the needle point of the needle inserting tube 4 together with the metallic core argon arc welding of the double-core armored cable 9. The sleeve 6 is sleeved in the sleeve 6, and the sleeve 6 is welded with the sensor shell 1 and the sleeve 6 and the bush 7 in an argon arc welding sealing way. After the assembly of the whole product is finished and before the sealing hole is formed in the side surface of the sealing sleeve 6, the sealing hole can be used for carrying out high-temperature drying insulation and pressing on the product to check a welding leakage point, and finally the sealing hole is welded by argon arc welding.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A sealed armoured cable gets rid of line device for be connected with piezoelectric type vibration transducer, its characterized in that, the device includes: the device comprises a sleeve connected with the piezoelectric vibration sensor, a bushing and a pipe joint arranged in the sleeve, an armored cable arranged in the bushing, a stainless steel woven sleeve arranged between the bushing and the armored cable, two needle inserting pipes connected with one end of the armored cable, two glass sealing bodies used for sealing the two needle inserting pipes and a double-hole pipe arranged in a shell of the piezoelectric vibration sensor and used for fixing the glass sealing bodies.
2. The hermetically armored cable flail apparatus of claim 1, wherein an inner cavity step is provided in the bushing, and the stainless steel braided sleeve is clamped at the inner cavity step.
3. The hermetically sealed armored cable flail apparatus of claim 1, wherein a wedge groove is provided in the tube connector.
4. The hermetically armored cable flail apparatus of claim 1, wherein the pipe joint and the bushing are secured by silver-copper welding, and the bushing and the stainless steel braided sleeve are secured by silver-copper welding.
5. The hermetically armored cable flail apparatus of claim 1, wherein the tube connector is laser welded to the sensor housing.
6. The hermetically sealed armored cable of claim 1, wherein the needle cannula and the two-hole tube are sealed by a glass seal to form an intermediate socket.
7. The hermetically sealed armored cable of claim 1, wherein the intermediate receptacle is secured to the sensor housing by laser welding.
8. The sealed armored cable of claim 1, wherein the metal core of the armored cable passes through the inner cavity of the contact pin tube, and the metal core of the armored cable is fixed to the contact pin tube.
9. The hermetically sealed and armored cable of claim 1, wherein the side walls of the sleeve are provided with a sealing hole.
10. The hermetically sealed armored cable wire-throwing apparatus of claim 9, wherein the sealing holes are sealed by argon arc welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011520818.8A CN112713556A (en) | 2020-12-21 | 2020-12-21 | High-temperature-resistant sealed armored cable throwing wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011520818.8A CN112713556A (en) | 2020-12-21 | 2020-12-21 | High-temperature-resistant sealed armored cable throwing wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112713556A true CN112713556A (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011520818.8A Pending CN112713556A (en) | 2020-12-21 | 2020-12-21 | High-temperature-resistant sealed armored cable throwing wire |
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| Country | Link |
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| CN (1) | CN112713556A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10505428A (en) * | 1995-06-30 | 1998-05-26 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Connection lines used for measuring sensors |
| US20030094065A1 (en) * | 2001-11-21 | 2003-05-22 | George Zusman | Spiral-armored cable connection |
| CN104966966A (en) * | 2015-06-17 | 2015-10-07 | 中国航空工业集团公司上海航空测控技术研究所 | High-temperature-resistant low-noise cable |
| 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 |
| CN208986321U (en) * | 2018-09-19 | 2019-06-14 | 沈阳兴华航空电器有限责任公司 | A kind of resistance to marine environment armored cable |
| CN209200330U (en) * | 2019-01-09 | 2019-08-02 | 苏州长风航空电子有限公司 | A kind of connection structure of piezoelectric vibration pickup and cable |
| CN110988379A (en) * | 2019-11-29 | 2020-04-10 | 苏州长风航空电子有限公司 | Rotating speed sensor |
-
2020
- 2020-12-21 CN CN202011520818.8A patent/CN112713556A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10505428A (en) * | 1995-06-30 | 1998-05-26 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Connection lines used for measuring sensors |
| US20030094065A1 (en) * | 2001-11-21 | 2003-05-22 | George Zusman | Spiral-armored cable connection |
| CN104966966A (en) * | 2015-06-17 | 2015-10-07 | 中国航空工业集团公司上海航空测控技术研究所 | High-temperature-resistant low-noise cable |
| 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 |
| CN208986321U (en) * | 2018-09-19 | 2019-06-14 | 沈阳兴华航空电器有限责任公司 | A kind of resistance to marine environment armored cable |
| CN209200330U (en) * | 2019-01-09 | 2019-08-02 | 苏州长风航空电子有限公司 | A kind of connection structure of piezoelectric vibration pickup and cable |
| CN110988379A (en) * | 2019-11-29 | 2020-04-10 | 苏州长风航空电子有限公司 | Rotating speed sensor |
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Application publication date: 20210427 |
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| RJ01 | Rejection of invention patent application after publication |