CN102980717A - Back pressure type mechanical seal structure of pressure sensor without power wire plugging - Google Patents
Back pressure type mechanical seal structure of pressure sensor without power wire plugging Download PDFInfo
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- CN102980717A CN102980717A CN2012104625154A CN201210462515A CN102980717A CN 102980717 A CN102980717 A CN 102980717A CN 2012104625154 A CN2012104625154 A CN 2012104625154A CN 201210462515 A CN201210462515 A CN 201210462515A CN 102980717 A CN102980717 A CN 102980717A
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Abstract
The invention discloses a back pressure type mechanical seal pressure of a pressure sensor without a power wire plug. A battery cabin is connected with a high voltage end through a protruding table and a concave groove. The battery cabin adopts an inner-outer layer structure, wherein a power supply wire, an antenna, a serial number data line of the pressure sensor and a socket are arranged between an inner shell and an outer shell in a hidden mode. The battery forms a negative power supply circuit through a conducting ring, and no lead wires for connecting are arranged on the pressure sensor to enhance anti-impacting capability of the pressure sensor, and therefore reliability of the pressure sensor is improved. The back pressure type mechanical seal structure of the pressure sensor without the power wire plug is simple in structure, reliable in sealing, light in weight, high temperature resistant and low temperature resistant, and can bear measuring pressure greater than 50Kg on a rotary mechanism.
Description
Technical field
The invention belongs to the gas pressure sensor mechanical sealing mechanism, specifically a kind of back pressure type is high pressure resistant, the pressure transducer mechanical sealing mechanism that the non-transformer wire patches can make pressure transducer work under greater than 50Kg high-pressure gas pressure environment at gaging pressure on the rotating machinery.
Background technology
Gases at high pressure wireless pressure sensor of the prior art, need to use antenna that pressure signal is transmitted out, simultaneously circuit normal operation need to provide external power source, its conventional seals structure is that the pressure measurement partial design with the pressure sensor chip place is the enclosed cavity of metal construction, pass through end surface mechanical sealing, the one side that pressure transducer is arranged of the circuit board that pressure transducer and transmitter are made is kept apart with outside atmosphere, emitting antenna on the one side of its transmitter, the serial number data line that circuit board working power line and pressure transducer sequence number arrange is then by drawing with pressure transducer metal pedestal end cap.Pressure transducer metal pedestal end cap relies on its perforate annulus edge to compress the teflon seal ring that is placed on the circuit board, realizes butt-end packing, the high-pressure side of mineralization pressure sensor.
Because the requirement of working environment, the volume of existing gas pressure sensor needs very little, therefore, because the restriction of volume, it is very thin that the metal shell of pressure transducer designs, small-sized, in addition pressure transducer metal pedestal end cap center drilling, and the edge that its perforate annulus edge is pressed in the teflon seal ring on the circuit board is very little, therefore, and when hypertonia that pressure transducer is measured, because the epoxy circuit board of insulation has larger elasticity, so, can be under the pressure-acting of gases at high pressure, heave towards the low direction of pressure at the center, so that being pressed in the edge of the teflon seal ring on the circuit board, further reduces at pressure transducer metal pedestal end cap perforate annulus edge, when pressure surpasses certain value, the balance of edge butt-end packing is destroyed, so that pressure transducer annular seal space decompression and lose function.In addition, because the battery cavities low-pressure section of pressure transducer is connected with high-pressure section by screw thread, also be threaded connection between the end cap of battery cavities and the cavity, therefore, for emitting antenna, working power line and the serial number data line of drawing from the transmitter circuit board simultaneously of pressure transducer, be threaded with low pressure chamber and sealed electrical cell cavity when lid at high pressure chest, because the relative rotation between part, cause easily the disengaging of terminal, so that the reliability of pressure transducer work reduces.
Summary of the invention
Be unfavorable for the shortcoming of pressure transducer reliably working the invention provides a kind of pressure transducer mechanical seal structure that reliable back pressure type non-transformer wire patches that seals for the structure of above-mentioned pressure transducer.
The technical solution used in the present invention is: the epimere of this pressure transducer mechanical seal structure is the battery compartment section, and hypomere is the high-pressure chamber section, and the high-pressure chamber section comprises single direction inflation valve core, metab; The outside tested source of the gas of single direction inflation valve core one termination, the other end metab lower end that is connected, the side of interior pressure chamber copper shell closely is nested in the metab, butt-end packing connection metal base upper end open, surrounds plenum chamber between metab and the interior pressure chamber copper shell; Be provided with circuit board and the circuit board copper annulus packing ring that is connected in circuit board bottom surface in the plenum chamber, the 2nd O RunddichtringO is set between circuit board copper annulus packing ring and the metab, between board top surface and the interior pressure chamber copper shell the 3rd O RunddichtringO is set; Interior pressure chamber copper shell, the 3rd O RunddichtringO, circuit board and circuit board copper annulus packing ring encapsulate with epoxide-resin glue; Interior pressure chamber copper shell and metab overcoat have metal end, and interior pressure chamber copper shell, metab and metal end encapsulate with epoxide-resin glue; The battery compartment section comprises battery compartment shell, battery, have in the battery compartment shell inner cavity one extended from the battery compartment outer casing inner wall, the battery compartment shell inner cavity is separated out the epicoele that do not communicate and the interlayer board of cavity of resorption, interlayer board is provided with a plurality of interface block gib screws; The battery compartment shell matches with the structure of metal end by boss, groove, and metal end snaps in the battery compartment shell cavity of resorption; Closely overlapping in the battery compartment shell epicoele has the battery compartment inner casing, and closely overlapping in the battery compartment inner casing has battery, and the lower end of battery is positive terminal; Be packaged with epoxy resin between interlayer board and the battery compartment inner casing and between interlayer board and the metal end; Upper shed place of battery compartment shell is docked with battery compartment end cap shell, and joint arranges the battery compartment negative pole conducting ring that connects battery cathode; Closely overlap in the battery compartment end cap shell battery compartment end cap inner casing is arranged.
The present invention has the following advantages:
1, battery compartment and high-pressure side adopt the direct insertion assembly structure of boss, groove fit, and the battery compartment housing is socketed on the high pressure section, the electric wire that having avoided is threaded the causes phenomenon that fractures,
2, battery compartment adopts the ectonexine structure, power lead with supplying cell, antenna and pressure transducer serial number data line and crosspointer socket are mailed between inside and outside shell, battery is directly packed battery compartment into by conducting ring formation negative pole feed circuit, pass through holddown spring, fixed bolt, conduction copper sheet and conducting ring are connected the battery cathode of battery compartment end cap and battery compartment, making does not have wire to connect on the whole pressure transducer, strengthen the impact resistance of pressure transducer, improved the reliability of pressure transducer
3, the transmitting terminal of circuit board adopts the back pressure type enclosed construction of thermometal housing socket, so that high-pressure chamber can bear higher gaging pressure.
4, the present invention is simple in structure, sealing is reliable, lightweight, high-low temperature resistant, can bear gaging pressure greater than 50Kg at rotating mechanism.Not only can be used for the measurement of gases at high pressure on the boats and ships, also can be used for the measurement of the tire inner high voltage gas of the huge delivery vehicle of the dead weight capacity such as large-scale mine carrier vehicle, also can be used for the steam piano of hog barge and clutch of diesel engine etc., even also can be used for the measurement of chemical industry oil gas field inner high voltage gas.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail;
Fig. 1 is configuration diagram of the present invention;
Among the figure: 1. single direction inflation valve core; 2. an O type circle O-ring seal; 3. retaining valve thimble double-screw bolt; 4. metab; 5. the 2nd O RunddichtringO; 6. circuit board copper annulus packing ring; 7. circuit board; 8. the 3rd O RunddichtringO; 9. interior pressure chamber copper shell; 10. metal end; 11. battery cathode wire; 12. serial number data line crosspointer socket; 13. interface block gib screw; 14. battery compartment inner casing; 15. battery compartment shell; 16. battery compartment negative pole conducting ring; 17. battery compartment end cap inner casing; 18. battery compartment end cap shell; 19. gib screw; 20. battery compartment negative pole holddown spring; 21. battery; 22. antenna.
Embodiment
As shown in Figure 1, the present invention is divided into two sections, and epimere is the battery compartment section, and hypomere is the high-pressure chamber section.
The high-pressure chamber section of hypomere comprises single direction inflation valve core 1, interior pressure chamber copper shell 9, metab 4, metal end 10.Single direction inflation valve core 1 is positioned at the bottom of metab 4, and the tested source of the gas of a termination outside of single direction inflation valve core 1, and the other end is threaded connection metab 4 lower ends, seals by an O RunddichtringO 2 between single direction inflation valve core 1 and the metab 4.By the fixing thimble double-screw bolt 3 of screw thread, thimble double-screw bolt 3 is provided with thimble and pore in metab 4 bottoms, is used for open check valve valve inside 1, and gases at high pressure to be measured are introduced plenum chamber.
Metab 4 upper end open places are tightly connected with interior pressure chamber copper shell 9, the side of interior pressure chamber copper shell 9 closely is nested in the metab 4, the end face of interior pressure chamber copper shell 9 seals metab 4 upper end open, like this, surrounds a plenum chamber between metab 4 and the interior pressure chamber copper shell 9.Mounting circuit boards 7 and circuit board copper annulus packing ring 6 in plenum chamber, circuit board 7 integrated pressure sensor chips and wireless pio chip, the external diameter of circuit board copper annulus packing ring 6 and interior pressure chamber copper shell 9 inwalls match, and be connected in circuit board 7 bottom surfaces, the 2nd O RunddichtringO 5 is installed between circuit board copper annulus packing ring 6 and metab 4, make the 2nd O RunddichtringO 5 and metab 4, circuit board copper annulus packing ring 6 equal close contacts, circuit board copper annulus packing ring 6 is metal rings that are used for support circuit plate 7, also plays the effect of strengthening high-pressure chamber intensity simultaneously.The 3rd O RunddichtringO 8, the three O RunddichtringOs 8 and interior pressure chamber copper shell 9, circuit board 7 equal close contacts are installed between circuit board 7 end faces and interior pressure chamber copper shell 9.
Interior pressure chamber copper shell 9, the 3rd O RunddichtringO 8, circuit board 7 and circuit board copper annulus packing ring 6 these four parts are in the same place with the epoxide-resin glue cure package, and circuit board copper annulus packing ring 6 is concordant with the bottom surface of interior pressure chamber copper shell 9.
At interior pressure chamber copper shell 9 and metab 4 overcoats metal end 10 is arranged, metal end 10 is threaded connection with metab 4 and tightens.Interior pressure chamber copper shell 9, metab 4 and metal end 10 usefulness epoxide-resin glues are encapsulated.
Power lead, pressure transducer serial number data line, antenna 22 are drawn by the wire guide on the interior pressure chamber copper shell 9 respectively, stretch in the battery compartment section of epimere of the present invention.
The battery compartment section of epimere of the present invention comprises battery compartment shell 15, battery 21, battery compartment shell 15 is one the columnar structured of upper and lower opening, there is one in the inner chamber of battery compartment shell 15 from the extended interlayer board of battery compartment shell 15 inwalls, this interlayer board is separated out battery compartment shell 15 inner chambers epicoele and the cavity of resorption that does not communicate, at interlayer board a plurality of interface block gib screws 13 are installed, are used for fixed data line and wire.
The metal end 10 that snaps in is arranged in the cavity of resorption of battery compartment shell 15, metal end 10 is snapped in the under shed of battery compartment shell 15, the bottom that is about to battery compartment shell 15 is enclosed within outside the metal end 10, and battery compartment shell 15 can match with structure by boss, groove between the metal end 10.In the epicoele of battery compartment shell 15, closely overlapping battery compartment inner casing 14, the battery compartment inner casing 14 interior tight batteries 21 that overlapping.The lower end of battery 21 is positive terminals, and battery 21 positive terminals are pressed against on the lower surface of battery compartment inner casing 14, and fixing with an interface block gib screw 13.
Power lead, pressure transducer serial number data line, the antenna 22 of drawing by the wire guide on the interior pressure chamber copper shell 9 are fixed on the interlayer board of battery compartment shell 15 successively by remaining each interface block gib screw 13 respectively.Between interlayer board and battery compartment inner casing 14, and encapsulating epoxy resin all between interlayer board and the metal end 10.
Upper shed place of battery compartment shell 15 is docked with battery compartment end cap shell 18, seals the upper shed of battery compartment shell 15 with battery compartment end cap shell 18, at joint battery compartment negative pole conducting ring 16 is set, the negative pole of battery compartment negative pole conducting ring 16 turn-on batteries 21.
The battery compartment end cap shell 18 interior tight battery compartment end cap inner casings 17 that overlapping, the negative pole of the upper end of battery compartment inner casing 14 and battery 21 all stretches in the battery compartment end cap inner casing 17, and and gapped between the upper surface of battery compartment end cap inner casing 17, battery compartment negative pole holddown spring 20 is installed in the gap, and battery compartment negative pole holddown spring 20 is fixed by gib screw 19 and the upper surface of battery compartment end cap inner casing 17.
Battery cathode wire 11 usefulness sheet coppers are made, antenna 22 is also made with sheet copper, battery cathode wire 11 joins with battery compartment negative pole conducting ring 16, through being fixed on the interlayer board of battery compartment shell 15 by the negative pole Binding post/stud behind the conducting ring 16, forms the negative pole feed circuit of circuit board 7.Battery cathode wire 11 antenna conductors also are fixed on the interlayer board of battery compartment shell 15 by double-screw bolt.Pressure transducer serial number data line also is fixed on the interlayer board of battery compartment shell 15 by double-screw bolt.On battery compartment inner casing 14 outer walls, open vertically one and connect straight trough, this connects setting pressure sensor sequence number line crosspointer socket 12 in the straight trough, and should connect the length of straight trough with wide identical with pressure transducer serial number data line crosspointer socket 12, the wire of in epicoele, drawing with nut fixation pressure sensor sequence number line crosspointer socket 12, the electric wire that pressure transducer serial number data line crosspointer socket 12 is drawn is imbedded in the perforation straight trough, the injection ring epoxy resins, the lead-in wire of fixing internal, disturbance fracture when preventing the lead-in wire rotation, the impact contact.
Claims (2)
1. pressure transducer mechanical seal structure that back pressure type non-transformer wire patches, the epimere of this pressure transducer mechanical seal structure is the battery compartment section, and hypomere is the high-pressure chamber section, and the high-pressure chamber section comprises single direction inflation valve core (1), metab (4); The outside tested source of the gas of single direction inflation valve core (1) one termination, other end metab (4) lower end that is connected, it is characterized in that: the side of interior pressure chamber copper shell (9) closely is nested in the metab (4), butt-end packing connection metal base (4) upper end open, surrounds plenum chamber between metab (4) and the interior pressure chamber copper shell (9); Be provided with circuit board (7) in the plenum chamber and be connected in the circuit board copper annulus packing ring (6) of circuit board (7) bottom surface, the 2nd O RunddichtringO (5) is set between circuit board copper annulus packing ring (6) and the metab (4), the 3rd O RunddichtringO (8) is set between circuit board (7) end face and the interior pressure chamber copper shell (9); Interior pressure chamber copper shell (9), the 3rd O RunddichtringO (8), circuit board (7) and circuit board copper annulus packing ring (6) encapsulating epoxy resin glue; Interior pressure chamber copper shell (9) and metab (4) overcoat have metal end (10), and interior pressure chamber copper shell (9), metab (4) and metal end (10) encapsulate with epoxide-resin glue; The battery compartment section comprises battery compartment shell (15), battery (21), have in battery compartment shell (15) inner chamber one extended from battery compartment shell (15) inwall, battery compartment shell (15) inner chamber is separated out the epicoele that do not communicate and the interlayer board of cavity of resorption, interlayer board is provided with a plurality of interface block gib screws (13); Battery compartment shell (15) matches with the structure of metal end (10) by boss, groove, and metal end (10) snaps in battery compartment shell (15) cavity of resorption; Closely overlapping in battery compartment shell (15) epicoele has battery compartment inner casing (14), and closely overlapping in the battery compartment inner casing (14) has battery (21), and the lower end of battery (21) is positive terminal; Be packaged with epoxy resin between interlayer board and the battery compartment inner casing (14) and between interlayer board and the metal end (10); Battery compartment shell (15) upper shed place is docked with battery compartment end cap shell (18), and joint arranges the battery compartment negative pole conducting ring (16) that connects battery (21) negative pole; Closely overlap in the battery compartment end cap shell (18) battery compartment end cap inner casing (17) is arranged.
2. the pressure transducer mechanical seal structure that patches of back pressure type non-transformer wire according to claim 1, it is characterized in that: have vertically the perforation straight trough on battery compartment inner casing (14) outer wall, connect in the straight trough and be provided with pressure transducer serial number data line crosspointer socket (12), and be marked with epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210462515.4A CN102980717B (en) | 2012-11-16 | 2012-11-16 | Back pressure type mechanical seal structure of pressure sensor without power wire plugging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210462515.4A CN102980717B (en) | 2012-11-16 | 2012-11-16 | Back pressure type mechanical seal structure of pressure sensor without power wire plugging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102980717A true CN102980717A (en) | 2013-03-20 |
| CN102980717B CN102980717B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210462515.4A Expired - Fee Related CN102980717B (en) | 2012-11-16 | 2012-11-16 | Back pressure type mechanical seal structure of pressure sensor without power wire plugging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938036A (en) * | 2015-03-05 | 2016-09-14 | Vega格里沙贝两合公司 | Measuring arrangement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09113392A (en) * | 1995-10-18 | 1997-05-02 | Tokai Rika Co Ltd | Pressure sensor |
| CN2802488Y (en) * | 2005-06-08 | 2006-08-02 | 滁州市金大仪器设备有限公司 | Radio data pressure meter |
| CN101892593A (en) * | 2010-07-23 | 2010-11-24 | 江苏宝泽高分子材料股份有限公司 | Matt villus waxy feel finishing agent used for synthetic leather and preparation method thereof |
| CN201892593U (en) * | 2010-09-28 | 2011-07-06 | 刘胜 | Backpressure sensor |
| CN102175385A (en) * | 2011-03-15 | 2011-09-07 | 中环天仪股份有限公司 | Intelligent pressure sensor |
| CN202255744U (en) * | 2011-09-16 | 2012-05-30 | 北京安控科技股份有限公司 | Wireless pressure sensor |
-
2012
- 2012-11-16 CN CN201210462515.4A patent/CN102980717B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09113392A (en) * | 1995-10-18 | 1997-05-02 | Tokai Rika Co Ltd | Pressure sensor |
| CN2802488Y (en) * | 2005-06-08 | 2006-08-02 | 滁州市金大仪器设备有限公司 | Radio data pressure meter |
| CN101892593A (en) * | 2010-07-23 | 2010-11-24 | 江苏宝泽高分子材料股份有限公司 | Matt villus waxy feel finishing agent used for synthetic leather and preparation method thereof |
| CN201892593U (en) * | 2010-09-28 | 2011-07-06 | 刘胜 | Backpressure sensor |
| CN102175385A (en) * | 2011-03-15 | 2011-09-07 | 中环天仪股份有限公司 | Intelligent pressure sensor |
| CN202255744U (en) * | 2011-09-16 | 2012-05-30 | 北京安控科技股份有限公司 | Wireless pressure sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938036A (en) * | 2015-03-05 | 2016-09-14 | Vega格里沙贝两合公司 | Measuring arrangement |
| CN105938036B (en) * | 2015-03-05 | 2018-02-09 | Vega格里沙贝两合公司 | Measurement apparatus |
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| CN102980717B (en) | 2014-11-05 |
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Granted publication date: 20141105 Termination date: 20171116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |