CN104568046A - Oil-proof potentiometer made of conductive plastic - Google Patents
Oil-proof potentiometer made of conductive plastic Download PDFInfo
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- CN104568046A CN104568046A CN201310498790.6A CN201310498790A CN104568046A CN 104568046 A CN104568046 A CN 104568046A CN 201310498790 A CN201310498790 A CN 201310498790A CN 104568046 A CN104568046 A CN 104568046A
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- conductive plastic
- oil resistant
- resistant conductive
- oil
- skeleton
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention relates to an oil-proof potentiometer made of conductive plastic. The oil-proof potentiometer comprises a resistor component, an electric brush component, a transition pad and a connecting sleeve, wherein the electric brush component penetrating the resistor component and can slide thereon freely, the transition pad sleeves the resistor component, and the connecting sleeve is fixed to the transition pad and connected with the resistor component. The oil-proof potentiometer made of the conductive plastic has the advantages that by the aid of split design, installing controls are saved and a servo mechanism is lightened; a resistor body and a conductive strip basal framework are made of meltable polyimide molding powder molded plastic YS20, so that oil proofing of the potentiometer is improved; the connecting sleeve (5) is provided with a seal groove and binding posts formed by glass sintering, wherein the seal groove enables an electric output portion to be isolated from an oil gas portion; since the resistor body and the conductive strip are formed by a conductive plastic printing method, production efficiency is improved.
Description
Technical field
The present invention relates to a kind of potentiometer, be especially a kind ofly applied to the potentiometer used in rocket servo system hydraulic oil position measuring sensor.
Background technology
"Long March" series of carrier rockets servo system hydraulic pressure oil-level measurement transducer is split linear potentiometers formula, electric resistance partial pressure principle is adopted to carry out work, hydraulic pressure oil level amount is converted to direct-flow output signal by potentiometer, be the crucial measuring component of accurate response hydraulic system oil level level, its pasta output voltage values launches to prepare parameters necessary.
Existing oil surface potential meter resistive element and bus adopt spray to form, and production efficiency is lower, and by many factors such as seasons, resistance variations is larger.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of oil resistant conductive plastic potentiometer, it is shaping that this potentiometer adopts resistive element and bus to print conductive plastics method, and with oil resistant conductive plastics, electric part and oil circuit are completely cut off, meet servo system hydraulic pressure oil level horizontal checkout needs.
For solving the problem, oil resistant conductive plastic potentiometer of the present invention, by resistor assembly, is applied on resistor assembly, the brush assembly of electric that can be free to slide in the above, is fixedly placed on transition pad outside resistor assembly, and fix with transition pad, the adapter sleeve be connected with resistor assembly forms.
This resistor assembly is rectangular skeleton by cross section, and be printed on the resistive element of the axial side of skeleton, the bus being printed on skeleton another side relative to printed resistor body and the rivet being distributed in bus upper end and resistive element two ends form.Wherein skeleton all material is polyimide laminate copper clad laminate YB-20; The slurry silk screen printing that resistive element is made by a kind of resin and graphite on skeleton surface, its resistance within the scope of 3000 ± 150 Europe, as 2850 Europe, 3000 Europe or 3150 Europe; The silver that its bus is made by Bright Silver Powder, resin starches silk screen printing on skeleton; Resistive element and bus adopt printing conductive plastics method shaping.
Its brush assembly of electric is by brush carrier, and the conducting strip being fixed on brush carrier and the brush silk being connected to conducting strip are formed, and wherein brush carrier material therefor is polyimides, and brush assembly of electric is slided respectively by two brush silks on the resistive element of resistor assembly and bus.
Its adapter sleeve is by the seal groove on adapter sleeve and forming with the binding post of glass sintering on top about the distribution of adapter sleeve Central Symmetry; Resistor assembly is connected with the binding post of connector by rivet.
The present invention saves installing space, reduces servomechanism weight; Carry the reliability that binding post ensures electrical connection; Carry seal groove electric output and oil circuit are completely cut off; The matrix skeleton of resistive element and bus adopts ANALYSIS OF MOLDABLE POLYIMIDES Moulding powder moulded plastic YS20, and this material has good mechanical property, and this material temperature resistant grade is high, and domestic related data has it in aircraft fluid, store 15 years Undec conclusions; The preparation of resistive element and bus all adopts that to print conductive plastics method shaping, and the shaping resistive film of method for printing is with short production cycle, can improve the production efficiency of product, shorten the production cycle, improve stability.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is oil resistant conductive plastic potentiometer partial cutaway figure.
Fig. 2 is brush assembly of electric partial cutaway figure.
Fig. 3 is brush silk assembly Local map.
Fig. 4 is resistor assembly Local map.
Fig. 5 is adapter sleeve Local map.
In figure: 1 is brush assembly of electric, 2 is resistor assembly, and 3 is transition pad, and 4 is pin, and 5 is adapter sleeve, and 6 is brush carrier, 7 is conducting strip, and 8 is screw, and 9 is brush silk, and 10 is weld, and 11 is skeleton, 12 is rivet, and 13 is resistive element, and 14 is bus, and 15 is seal groove, and 16 is binding post.
Embodiment
Shown in Fig. 1, oil resistant conductive plastic potentiometer, is made up of a brush assembly of electric 1 and a resistor assembly 2, transition pad 3, two pins 4, adapter sleeve 5.Brush assembly of electric 1 is applied on resistor assembly 2, can be free to slide above, and resistor assembly 2 is inserted in transition pad 3, and transition pad 3 is arranged on adapter sleeve 5 inside and forms one by pin 4.
Shown in Fig. 2 and Fig. 3, brush assembly of electric 1 is by the brush carrier 6 opening square opening in the middle of cylinder, and the conducting strip 7 that square opening is opened in the centre being fixed on brush carrier 6 side by screw 8 is fixed, and brush silk 9 is welded on conducting strip 7 by weld 10.Brush assembly of electric 1 is arranged on servomechanism fuel tank piston, moves with fuel tank piston, oil level in true reflection fuel tank.Brush carrier 6 is the diameters selecting polyimide material machine to add is 18 millimeters, thickness 6 millimeters, and centre has the cylindrical structure of 12 mm wide 4 millimeters thick rectangular slots (this groove is resistor assembly 2 working interface), for installing conducting strip 7.Conducting strip 7 is and brush carrier 6 comparable size, adopts beryllium-bronze sheet silver-plated, for welding brush silk 9.Brush silk 9 is bent by the palladium iridium alloy silk mould of 0.2 millimeter, adopts anacidity soldering to be welded on conducting strip 7 at weld 10.During work, slide at resistive element 13 in side brush silk 9 side, and opposite side slides on bus 14, for pick-up voltage signal.
Shown in Fig. 4, resistor assembly 2 is by rectangle skeleton 11, the resistive element 13 evenly printed in skeleton 11 both sides and bus 14, on resistive element, have three rivets 12, have two rivets below, following rivet 12 receives upper end by drawing wire, draw rivet 12 interface, bus 14 has a rivet 12, and wherein rivet 12 is lead-out wire soldering opening, for input/output signal.Skeleton 11 is long 128 millimeters, wide 9 millimeters, thick 4 millimeters long cube structures, and material adopts polyimide laminate copper clad laminate YB-20, is arranged on servomechanism fuel tank shell.Resistive element 13 is rectangle rete, it is printed on the surperficial side of skeleton 11 equably, the slurry made of a kind of resin and graphite, and silk screen printing forms in the surperficial drying of skeleton 1 and polymerization etc., resistance within the scope of 3000 ± 150 Europe, as 2850 Europe, 3000 Europe or 3150 Europe.Bus 14 is rectangular-shaped, is arranged on skeleton 11 surface electrical resistance body 13 respective side, in the present embodiment, bus 14 is long 100 millimeters, the silver slurry silk screen printing that wide 4.4 millimeters, the rectangle structure that thickness is 0.12 millimeter is Bright Silver Powder, resin makes is on skeleton.Rivet 12 diameter is 1.8 millimeters, and length is 4.1 millimeters, should to weld lead-out wire, input and output signal.
Shown in Fig. 5, adapter sleeve 5, comprise a seal groove 15 and superincumbent 8 binding posts 16 through glass sintering, the transition for potentiometer lead-out wire is drawn.Sealing ring is installed in seal groove effect, electric output and oil circuit is completely cut off.Adapter sleeve 5 diameter 27 millimeters, long 29 millimeters.Seal groove 15 is at adapter sleeve 5 6.3 millimeters of places vertically, and diameter is 20 millimeters, wide 4.3 millimeters.
During work, input voltage signal is connected on respectively corresponding on the rivet at resistive element two ends, equally corresponding for resistive element 13 lower end the rivet 12 connecting out is connected output signal with the rivet 12 that bus 14 picks out, be arranged on resistor assembly 2 on servomechanism fuel tank shell to maintain static, servomechanism fuel tank piston with the aircraft fluid injected in fuel tank to certain position, brush assembly of electric 1 is driven to slide on resistor assembly 2 in motion process, proportional pick-up voltage signal, true reflection fuel level in tank actual height, realizes the function of pasta displacement measurement.
Claims (9)
1. an oil resistant conductive plastic potentiometer, it is characterized in that: this device comprises resistor assembly (2), is applied on resistor assembly (2), the brush assembly of electric (1) that can be free to slide in the above, be fixedly placed on transition pad (3) outside described resistor assembly (2), and fix with transition pad (3), the adapter sleeve (5) be connected with resistor assembly (2).
2., according to the oil resistant conductive plastic potentiometer described in claims 1, it is characterized in that: described resistor assembly (2) comprise cross section be rectangular skeleton (11), be printed on skeleton axially a side resistive element (13), be printed on the bus (14) of skeleton and printed resistor body (13) relative another side and be distributed in some rivets (12) at bus (14) one end and resistive element (13) two ends.
3. according to the oil resistant conductive plastic potentiometer described in claims 2, it is characterized in that: described adapter sleeve (5) its airtight end face having some binding posts (16) be connected with the rivet (12) of resistor assembly (2) with glass sintering.
4. according to the oil resistant conductive plastic potentiometer described in claims 2, it is characterized in that: the skeleton (11) of described resistor assembly (2), its material therefor is polyimide laminate copper clad laminate YB-20.
5. according to the oil resistant conductive plastic potentiometer described in claims 2, it is characterized in that: described resistive element (13) is by slurry silk screen printing on skeleton (11) surface, and its resistance is within the scope of 3000 ± 150 Europe.
6. according to the oil resistant conductive plastic potentiometer described in claims 2, it is characterized in that: described bus (14) starches silk screen printing on skeleton (11) by silver.
7. according to the oil resistant conductive plastic potentiometer described in claim 5 or 6, it is characterized in that: described resistive element (13) and bus (14) all adopt printing conductive plastics method shaping.
8. according to the oil resistant conductive plastic potentiometer described in claims 1, it is characterized in that: described brush assembly of electric (1) comprises brush carrier (6), the conducting strip (7) being fixed on brush carrier (6) be connected to the upper brush silk (9) contacted with described resistor assembly (2) of conducting strip (7).
9. according to the oil resistant conductive plastic potentiometer described in claims 1, it is characterized in that: the outer wall of described adapter sleeve (5) has seal groove (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310498790.6A CN104568046A (en) | 2013-10-22 | 2013-10-22 | Oil-proof potentiometer made of conductive plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310498790.6A CN104568046A (en) | 2013-10-22 | 2013-10-22 | Oil-proof potentiometer made of conductive plastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104568046A true CN104568046A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310498790.6A Pending CN104568046A (en) | 2013-10-22 | 2013-10-22 | Oil-proof potentiometer made of conductive plastic |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009210503A (en) * | 2008-03-06 | 2009-09-17 | Panasonic Corp | Liquid level sensor |
| CN201476838U (en) * | 2009-08-14 | 2010-05-19 | 大陆汽车电子(芜湖)有限公司 | Level sensor contact |
| US20120304761A1 (en) * | 2011-06-03 | 2012-12-06 | Denso Corporation | Fluid level measurement apparatus and system |
| CN202903284U (en) * | 2012-11-13 | 2013-04-24 | 浙江工贸职业技术学院 | Sensor for digital type fuel gauge |
| CN202971900U (en) * | 2012-12-10 | 2013-06-05 | 江门市大长江集团有限公司 | Sealing structure for fuel quantity transducer and fuel tank |
-
2013
- 2013-10-22 CN CN201310498790.6A patent/CN104568046A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009210503A (en) * | 2008-03-06 | 2009-09-17 | Panasonic Corp | Liquid level sensor |
| CN201476838U (en) * | 2009-08-14 | 2010-05-19 | 大陆汽车电子(芜湖)有限公司 | Level sensor contact |
| US20120304761A1 (en) * | 2011-06-03 | 2012-12-06 | Denso Corporation | Fluid level measurement apparatus and system |
| CN202903284U (en) * | 2012-11-13 | 2013-04-24 | 浙江工贸职业技术学院 | Sensor for digital type fuel gauge |
| CN202971900U (en) * | 2012-12-10 | 2013-06-05 | 江门市大长江集团有限公司 | Sealing structure for fuel quantity transducer and fuel tank |
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Application publication date: 20150429 |
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| RJ01 | Rejection of invention patent application after publication |