CN102509596A - Conducting liquid contact-type friction-free rotary potentiometer - Google Patents
Conducting liquid contact-type friction-free rotary potentiometer Download PDFInfo
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- CN102509596A CN102509596A CN2011103587235A CN201110358723A CN102509596A CN 102509596 A CN102509596 A CN 102509596A CN 2011103587235 A CN2011103587235 A CN 2011103587235A CN 201110358723 A CN201110358723 A CN 201110358723A CN 102509596 A CN102509596 A CN 102509596A
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- conducting liquid
- circular arc
- fixed resistor
- conductive electrode
- potentiometer
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Abstract
The invention relates to an adjustable resistance device, in particular to a conducting liquid contact-type friction-free rotary potentiometer. The potentiometer provided by the invention adopts the structure that a ring-shaped conductive electrode (2), a circular arc-shaped naked fixed resistor (3), a conducting liquid drop (4), inert gas and external metallic sealing lead wires (5) are arranged in a ring-shaped gas-tight sealed box (1) in a built-in manner, wherein, two ends of the fixed resistor and the ring-shaped conductive electrode are both led out of the ring-shaped gas-tight sealed box (1) through the external metallic sealing lead wires (5). The rotary potentiometer provided by the invention has the benefits of mechanical contact prevention, friction and noise prevention, long service life, wide application, and the like; and due to the gravity action of the gravitational attraction, the potentiometer can be vertically mounted to be served as tilt sensors, shock sensors, displacement sensors, liquid level sensors, and the like.
Description
Technical field
The present invention relates to a kind of adjustable resistor device, particularly a kind of conducting liquid contact does not have the friction rotational potentiometer.
Background technology
At present, the structure of known potentiometer: the resistive element of potentiometer exposes, and two stiff ends are arranged.On exposed resistive element, press one or two and can move the metal moving contact, lean on the mechanical friction between metal moving contact and exposed resistive element to realize electrically contacting, metal moving contact and rotating shaft or sliding handle are fixed.The resistance between arbitrary end end points of resistive element and contact is confirmed in the moving contact position.During use,, change the position of moving contact on resistive element, then changed the resistance value between moving contact and any stiff end, thereby changed the size of voltage and electric current through manual adjustments rotating shaft or sliding handle.Regulator potentiometer needs mechanical friction.Because the moving metal contact of traditional potentiometer, the poor electric contact phenomenon appears in repeatedly mechanical friction in use easily.Contact wear, loose contact, resistance is infinitely great; Exposed resistive element wearing and tearing produce electric spark, the noise noise occurs regulating.Owing to the arcing phenomenon of moving contact, can burn potentiometer when serious.Objective fact is a regulator potentiometer, and mechanical friction must be arranged, and mechanical friction must cause corresponding wearing and tearing.Also have the housing blow-by to make mechanical contact and resistor disc oxidation cause loose contact, this all is the technical contradiction (problem) of the existence of known potentiometer.
Summary of the invention
In order to overcome existing potentiometer metal moving contact mechanical friction and packing less technical problem, the present invention provides a kind of ability minimizing even does not have the conducting liquid contact of mechanical friction not have the friction rotational potentiometer.
The present invention is directed to known potentiometer technical problem, a kind of improvement technical scheme of essence is provided: the mechanical friction of change hard contact, for conducting liquid has the frictional electricity contact.With the rotational potentiometer is example: as shown in Figure 1, at the built-in annular conductive electrode of band mesopore annular air-tightness seal box (1), exposed fixed resistor (3), the conducting liquid of (2), circular arc drips (4), inert gas and metallic seal outer lead (5).The two ends of fixed resistor (3) and annular conductive electrode (2) are all drawn outside the annular air-tightness seal box (1) through metallic seal outer lead (5), and constituting the conducting liquid contact does not have the friction rotational potentiometer.During use, the conducting liquid contact do not have the friction rotational potentiometer vertically install, along the mesopore rotational.Because action of gravity; Conducting liquid drips exposed fixed resistor (3) and the annular conductive electrode (2) of bottom electrical contact circular arc that (4) sink to annular air-tightness seal box (1) all the time; Can realize that annular conductive electrode (2) drips the resistance change between exposed any stiff end of fixed resistor (3) of (4) and circular arc through conducting liquid, thereby change voltage and the size of electric current in the circuit.
Description of drawings
Fig. 1 is that conducting liquid contact of the present invention does not have friction rotational potentiometer structure chart.
Wherein: 1, annular air-tightness seal box (1), 2, annular conductive electrode (2), 3, the exposed fixed resistor (3) of circular arc, 4, conducting liquid drips (4), 5, metallic seal outer lead (5).
Embodiment
It is processing like this that the conducting liquid contact does not have the friction rotational potentiometer.Material is selected the 1mm poly (methyl methacrylate) plate for use, uses cutting machined into outer radius to be two of the annulus of R4, sign A sheet and B sheet as the R1 inside radius.Material is selected the 3mm poly (methyl methacrylate) plate for use, uses cutting machined into outer radius to be R1, and inside radius is annulus a slice of R2, sign C sheet.Outer radius is annulus a slice of R4 for the R3 inside radius, sign D sheet.Radius length magnitude relationship: R1 wherein " R2 " R3 " R4.Assembly technology: get the A sheet and keep flat, get C sheet and D sheet, behind the gluing, peace concentric circles position is bonded on the A sheet.After cementing, form annular groove between the C sheet on the A sheet and the R2 of D sheet and the R3.The thickness of C sheet and D sheet (3mm) will guarantee that the annular groove degree of depth is enough to install circular arc exposed fixed resistor (3) and annular conductive electrode (2).The exposed fixed resistor (3) of circular arc is installed in annular groove, and the circular arc of the fixed resistor (3) that circular arc is exposed overlaps with the interior annular groove center of circle of annular air-tightness seal box (1), and a glue drips and cements the exposed fixed resistor (3) of circular arc.The exposed fixed resistor (3) of circular arc is selected carbon film resistance plate for use.Spile in the position of C sheet, (5) two of metallic seal outer leads are installed, behind welding fixed resistor (3) two ends, with glue sealed aperture and pad near exposed fixed resistor (3) two ends of circular arc.The fixed resistor (3) exposed in circular arc drips three droplet glue; Mounting circular ring shape conductive electrode (2); Annular conductive electrode (2) material is selected irony for use; Both overlap with one heart circular arc, and exposed fixed resistor (3) surface of annular conductive electrode (2) and circular arc is parallel but do not contact, and the gap is little as far as possible between the two.Spile near annular conductive electrode (2) end points at the C sheet equally, metallic seal outer lead (5) is installed.Weld firm back with glue sealed aperture and pad.Between the exposed fixed resistor (3) of annular conductive electrode (2) and circular arc, splashing into mercury metal drips.Mercury metal does not have corrosiveness to carbon film and iron.At last, inspection annular conductive electrode (2) highly is not higher than the degree of depth of annular groove, and gluing on C sheet D sheet is stained with the B sheet, looping airtight sealing box (1) then.After checking that the air-tightness of annular air-tightness seal box (1) is qualified,, spile at annular air-tightness seal box (1), bleed inert gas injecting, sealing again.After checking annular air-tightness seal box (1) sealing once more, the conducting liquid contact does not have friction rotational potentiometer manufacturing success.During use, the axis that does not have the friction rotational potentiometer through the conducting liquid contact erects installation, and mercury metal drops in and always places annular groove round bottom portion under the action of gravity.Because the gap between the fixed resistor (3) that annular conductive electrode (2) and circular arc are exposed is very little, mercury metal drips can be electrically connected annular conductive electrode (2) and the exposed fixed resistor (3) of circular arc all the time.
The beneficial effect that conducting liquid contact of the present invention does not have the friction rotational potentiometer is no mechanical contact, does not have friction, the use noiselessness, and contact point seals not oxidation, and the life-span is long, and is of many uses etc.Owing to after existing gravitational action of gravity, conducting liquid contact not to have the vertical installation of friction rotational potentiometer, also can be used as obliquity sensor, shock sensor, displacement alarm, liquid level sensor etc.After the conducting liquid contact does not have a friction rotational potentiometer transforms slightly, can also make acceleration transducer etc. as adding closed magnetic field.
Claims (4)
1. the conducting liquid contact does not have the friction rotational potentiometer, it is characterized in that in annular air-tightness seal box (1), and built-in annular conductive electrode (2), exposed fixed resistor (3), the conducting liquid of circular arc drip (4), inert gas and metallic seal outer lead (5); The two ends of fixed resistor and circular arc conductive electrode are all drawn outside the annular air-tightness seal box (1) through metallic seal outer lead (5).
2. conducting liquid contact according to claim 1 does not have the friction rotational potentiometer, it is characterized in that: the circular arc of the fixed resistor (3) that circular arc is exposed overlaps with the interior annular groove center of circle of annular air-tightness seal box (1).
3. conducting liquid contact according to claim 1 does not have the friction rotational potentiometer; It is characterized in that: on the exposed fixed resistor (3) of circular arc; Mounting circular ring shape conductive electrode (2); Both overlap with one heart circular arc, and exposed fixed resistor (3) surface of annular conductive electrode (2) and circular arc is parallel but do not contact.
4. conducting liquid contact according to claim 1 does not have the friction rotational potentiometer, it is characterized in that: the gap between the fixed resistor (3) that annular conductive electrode (2) and circular arc are exposed is very little, and conducting liquid drips the electrical connection that can both realize between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103587235A CN102509596A (en) | 2011-10-29 | 2011-10-29 | Conducting liquid contact-type friction-free rotary potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103587235A CN102509596A (en) | 2011-10-29 | 2011-10-29 | Conducting liquid contact-type friction-free rotary potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102509596A true CN102509596A (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103587235A Pending CN102509596A (en) | 2011-10-29 | 2011-10-29 | Conducting liquid contact-type friction-free rotary potentiometer |
Country Status (1)
| Country | Link |
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| CN (1) | CN102509596A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616848A (en) * | 2015-02-28 | 2015-05-13 | 朱蕾 | Solenoid-drive rotating fluid self-variable resistor for electronic or electric systems |
| CN104867637A (en) * | 2015-01-05 | 2015-08-26 | 刘伟 | Rotating liquid variable resistor, rotating liquid variable resistor cluster and motor starter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB277687A (en) * | 1926-09-16 | 1928-04-12 | Robert Lagniez | Improvements in or relating to automatic controlling devices for electric motors and the like |
| JPS543344U (en) * | 1977-06-10 | 1979-01-10 | ||
| SU1101904A1 (en) * | 1983-04-06 | 1984-07-07 | Chyapyale Yuozas M | Liquid rheostat |
| CN1086627A (en) * | 1992-11-04 | 1994-05-11 | 陈克新 | Durable potentiometer |
-
2011
- 2011-10-29 CN CN2011103587235A patent/CN102509596A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB277687A (en) * | 1926-09-16 | 1928-04-12 | Robert Lagniez | Improvements in or relating to automatic controlling devices for electric motors and the like |
| JPS543344U (en) * | 1977-06-10 | 1979-01-10 | ||
| SU1101904A1 (en) * | 1983-04-06 | 1984-07-07 | Chyapyale Yuozas M | Liquid rheostat |
| CN1086627A (en) * | 1992-11-04 | 1994-05-11 | 陈克新 | Durable potentiometer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867637A (en) * | 2015-01-05 | 2015-08-26 | 刘伟 | Rotating liquid variable resistor, rotating liquid variable resistor cluster and motor starter |
| CN104867637B (en) * | 2015-01-05 | 2017-11-10 | 刘伟 | A kind of rotating liquid variable resistance and its cluster, motor starter |
| CN107680763A (en) * | 2015-01-05 | 2018-02-09 | 湖南轻创科技有限公司 | Rotating liquid variable resistance, motor starter |
| CN107680766A (en) * | 2015-01-05 | 2018-02-09 | 湖南轻创科技有限公司 | Rotating liquid variable resistance, motor starter |
| CN107680762A (en) * | 2015-01-05 | 2018-02-09 | 湖南轻创科技有限公司 | Rotating liquid variable resistance, motor starter |
| CN107833720A (en) * | 2015-01-05 | 2018-03-23 | 湖南轻创科技有限公司 | Rotating liquid variable resistance, motor starter |
| CN104616848A (en) * | 2015-02-28 | 2015-05-13 | 朱蕾 | Solenoid-drive rotating fluid self-variable resistor for electronic or electric systems |
| CN104616848B (en) * | 2015-02-28 | 2017-05-10 | 青岛岩康塑料机械有限公司 | Solenoid-drive rotating fluid self-variable resistor for electronic or electric systems |
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Application publication date: 20120620 |
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| WD01 | Invention patent application deemed withdrawn after publication |