CN108010647A - Carbon-film potentiometer - Google Patents
Carbon-film potentiometer Download PDFInfo
- Publication number
- CN108010647A CN108010647A CN201711070474.3A CN201711070474A CN108010647A CN 108010647 A CN108010647 A CN 108010647A CN 201711070474 A CN201711070474 A CN 201711070474A CN 108010647 A CN108010647 A CN 108010647A
- Authority
- CN
- China
- Prior art keywords
- carbon
- pedestal
- heat sink
- face
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/08—Cooling, heating or ventilating arrangements
- H01C1/084—Cooling, heating or ventilating arrangements using self-cooling, e.g. fins, heat sinks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/04—Adjustable resistors with specified mathematical relationship between movement of resistor actuating means and value of resistance, other than direct proportional relationship
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermistors And Varistors (AREA)
Abstract
The present invention relates to carbon-film potentiometer, including pedestal and the carbon film plate being laid on one surface of pedestal, some through holes are offered on the pedestal, heat sink is embedded with the through hole, heat sink includes first end face and second end face, the first end face of heat sink is bonded with carbon film plate, the second end face of heat sink is concordant with the base bottom surface of pedestal, heat sink is filled in pedestal, substitute original carbon film plate upper berth heat dissipation carbon circle, higher technological level is not required, cost can be reduced and improve production efficiency, and the heat dissipation effect that heat sink is filled in pedestal is more preferable, the precision of potentiometer will not be influenced.
Description
Technical field
The present invention relates to potentiometer technical field, more particularly, to a kind of carbon-film potentiometer.
Background technology
Carbon-film potentiometer is applied on horseshoe-shaped paper offset plate made of last layer carbon film, its change in resistance and Interposer contact
The relation of position has linear, logarithmic and three kinds exponential, and carbon-film potentiometer has large-scale, small-sized, miniature several, some and opens
Close the potentiometer for forming belt switch together, the characteristics of carbon-film potentiometer is that high resolution, wearability are good, and long lifespan, but logical
Normal carbon-film potentiometer possesses following shortcoming：Weak heat-dissipating is easy to cause current noise height, and influence carbon-film potentiometer uses the longevity
Life；The accuracy that the technique of carbon film in itself can cause potentiometer resistance to change is not high, influences using effect.Existing carbon film current potential
The mode that device radiates is the circle of the reprocessing one heat dissipation carbon circle on carbon film plate, using which, it is necessary to technological level it is high, into
This is also high, and the carbon circle that radiates influences whether the precision of potentiometer.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of perfect heat-dissipating, simple for production, and reduce cost
Carbon-film potentiometer.
The technical solution adopted in the present invention is carbon-film potentiometer, including pedestal and is laid on one surface of pedestal
Carbon film plate, offers some through holes on the pedestal, heat sink is embedded with the through hole, heat sink includes first end face and second
End face, the first end face of heat sink are bonded with carbon film plate, and the second end face of heat sink is concordant with the base bottom surface of pedestal.
The beneficial effects of the invention are as follows：Heat sink is filled in pedestal, substitutes original carbon film plate upper berth heat dissipation carbon circle, no
Higher technological level is needed, cost can be reduced and improve production efficiency, and the heat dissipation effect of heat sink is filled in pedestal
Fruit is more preferable, will not influence the precision of potentiometer.
As priority, the material of heat sink is aluminium sheet, heat sink further include coated in the first coating in first end face with
And include coated in the thermal dispersant coatings in first end face and be covered in coated in the second coating in second end face, first coating
The tactile drier coating on thermal dispersant coatings and with carbon film plate patch, second coating are included coated in the thermal dispersant coatings in second end face,
Using this kind of structure, the heat dissipation effect of carbon-film potentiometer can be further improved, and on the thermal dispersant coatings of first end face
One layer of drier is covered, can be moisture-proof to carbon film plate progress, improve the moisture resistivity of carbon film plate.
As priority, the component of thermal dispersant coatings includes：Hydroxylated acrylic resin, branched hydroxy group polyester resin, isocyanates
Curing agent, epoxy silicone resin, modified amine curing agent, aluminium oxide, silicon nitride, wetting dispersing agent, anti-settling wax liquor, defoamer with
And levelling agent, using the thermal dispersant coatings of the component compared with the prior art for the middle thermal dispersant coatings using high thermal conductivity component,
Heat dissipation performance is more preferable, and reduces cost, while disclosure satisfy that good electrical insulating property.
As priority, the component of drier coating includes：Magnesium chloride, calcium chloride and silica gel, by the way that silica gel is merged chlorine
Change magnesium and calcium chloride, making is modified to silica gel, the adsorption capacity of silica gel can be improved, reduces cost, and the drier
Coating possesses good insulating properties.
As priority, heat sink is adhesive in through hole by sealing, and is sealed by fluid sealant, using the structure, mainly
It is to enter in order to prevent in trickle gap of the moisture between through hole and heat sink, further improves the moisture resistivity of carbon film plate, keep away
Exempt from the using effect that moisture influences potentiometer.
As priority, it is fixed tactile to further include first for being fixed at pedestal one end and being connected with carbon film plate for carbon-film potentiometer
Piece, the second fixed touching plate for being fixed at the pedestal other end and being connected with carbon film plate, the revolving dial for being arranged on base central, with
The movable contact spring of revolving dial one end connection and the probe being connected with the revolving dial other end, termination and the carbon film plate of probe paste
Touching, the carbon-film potentiometer further includes the processor for being arranged on base interior, and one end of processor is connected by conducting wire with probe,
The other end is connected by conducting wire with the first fixed touching plate, and processor is deposited including value detector, the data being connected with value detector
Reservoir and the alarm being connected with value detector, using the structure, data storage is previously stored with each section of carbon film plate
Resistance value, moved by movable contact spring and drive probe to slide to change and obtain the resistance value that potentiometer is connected into circuit, resistance value detection
Device detects the resistance value of potentiometer in real time, if the resistance value of the carbon film panel region of probe meaning and the region of data storage storage
The difference of resistance value be above standard value, alarm will send alarm, then carbon-film potentiometer at this time can be learnt in essence
There are error, it is necessary to be replaced on degree, this detection mode also instead of the carbon film detecting system of existing carbon-film potentiometer,
Avoid special system to be detected, reduce cost, improve production efficiency.
Brief description of the drawings
Fig. 1 is the rearview of carbon-film potentiometer of the present invention；
Fig. 2 is the front view of carbon-film potentiometer of the present invention；
Fig. 3 is the front view of heat sink in carbon-film potentiometer of the present invention；
Fig. 4 is the module map of processor in carbon-film potentiometer of the present invention；
As shown in the figure：1st, pedestal；2nd, carbon film plate；3rd, through hole；4th, heat sink；5th, first end face；6th, second end face；7th, pedestal
Bottom surface；8th, thermal dispersant coatings；9th, drier coating；10th, the first fixed touching plate；11st, the second fixed touching plate；12nd, revolving dial；13rd, move and touch
Piece；14th, probe；15th, value detector；16th, data storage；17th, alarm；
Embodiment
Referring to the drawings and embodiment is combined to further describe invention, to make those skilled in the art's reference
Specification word can be implemented according to this, and the scope of the present invention is not limited to the embodiment.
The present invention relates to carbon-film potentiometer, as shown in Figure 1, including pedestal 1 and the carbon film being laid on 1 one surface of pedestal
Piece 2, as shown in Fig. 2, offer some through holes 3 on the pedestal 1, is embedded with heat sink 4 in the through hole 3, heat sink 4 includes the
End face 5 and second end face 6, the first end face 5 of heat sink 4 are bonded with carbon film plate 4, second end face 6 and the pedestal 1 of heat sink 4
Base bottom surface 7 it is concordant, i.e. the region part of heat sink distribution is exactly the region part that carbon film plate covers pedestal.
As priority, the material of heat sink 4 is aluminium sheet, and the thermal diffusivity of aluminium sheet is strong, as shown in figure 3, heat sink 4 further includes painting
Overlay on the first coating in first end face 5 and coated in the second coating in second end face 6, first coating includes being covered in the
Thermal dispersant coatings 8 on end face and it is covered in the drier coating 9 tactile on thermal dispersant coatings 8 and with the patch of carbon film plate 2, second coating
Including coated in the thermal dispersant coatings 8 in second end face.
As priority, the component of thermal dispersant coatings 8 includes：8-25 parts of Hydroxylated acrylic resin, branched hydroxy group polyester resin
2.5-5 parts, 3-10 parts of isocyanate curing agent, 20-60 parts of epoxy silicone resin, 4-8 parts of modified amine curing agent, aluminium oxide
0.05-2 parts, 1-2 parts of silicon nitride, 0.1-0.3 parts of wetting dispersing agent, wax liquor 0.05-2 parts anti-settling, 0.2-0.4 parts of defoamer and
0.06-0.1 parts of levelling agent.Hydroxylated acrylic resin mixes generation two component polyurethane with isocyanate curing agent and applies
Layer, its weatherability is strong, there is stronger acid and alkali-resistance chemicals corrosive power, and epoxy silicone resin heat endurance is high, good insulating,
Silicon nitride belongs to excellent insulating heat-conductive filler, and cheap.
As priority, the component of drier coating 9 includes：5-10 parts of magnesium chloride, 3-8 parts of calcium chloride and silica gel 10-40
Part, by the way that silica gel is merged magnesium chloride and calcium chloride.
As priority, heat sink 4 is adhesive in through hole by sealing, and is sealed by fluid sealant.
As priority, as shown in Fig. 2, carbon-film potentiometer further includes is fixed at 1 one end of pedestal and is connected with carbon film plate 2
The first fixed touching plate 10, be fixed at 1 other end of pedestal and be connected with carbon film plate 2 the second fixed touching plate 11, be arranged on pedestal 1
Revolving dial 12, the movable contact spring 13 being connected with 12 one end of revolving dial and the spy being connected with 12 other end of revolving dial in center
Pin 14, termination and the patch of carbon film plate 2 of probe 14 are touched, and the carbon-film potentiometer further includes the processor being arranged on inside pedestal 1, place
One end of reason device is connected by conducting wire with probe 14, and the other end is connected by conducting wire with the first fixed touching plate 10, and processor includes resistance
It is worth detector 15, the data storage 16 being connected with value detector 15 and the alarm 17 being connected with value detector 15.
Claims (7)
1. carbon-film potentiometer, including pedestal (1) and the carbon film plate (2) that is laid on (1) one surface of pedestal, it is characterised in that：
Some through holes (3) are offered on the pedestal (1), are embedded with heat sink (4) in the through hole (3), heat sink (4) includes first end
Face (5) and second end face (6), the first end face (5) of heat sink (4) are bonded with carbon film plate (4), the second end face of heat sink (4)
(6) it is concordant with the base bottom surface (7) of pedestal (1).
2. carbon-film potentiometer according to claim 1, it is characterised in that：The material of heat sink (4) is aluminium sheet, heat sink
(4) further include coated in the first coating in first end face (5) and coated in the second coating in second end face (6), first
Coating includes the thermal dispersant coatings (8) being covered in first end face and is covered on thermal dispersant coatings (8) and is touched with carbon film plate (2) patch
Drier coating (9), second coating includes coated in the thermal dispersant coatings (8) in second end face.
3. carbon-film potentiometer according to claim 2, it is characterised in that：The component of thermal dispersant coatings (8) includes：Hydroxy
Acid resin, branched hydroxy group polyester resin, isocyanate curing agent, epoxy silicone resin, modified amine curing agent, aluminium oxide, nitrogen
SiClx, wetting dispersing agent, anti-settling wax liquor, defoamer and levelling agent.
4. carbon-film potentiometer according to claim 2, it is characterised in that：The component of drier coating (9) includes：Chlorination
Magnesium, calcium chloride and silica gel, by the way that silica gel is merged magnesium chloride and calcium chloride.
5. carbon-film potentiometer according to claim 1, it is characterised in that：Heat sink (4) is adhesive in through hole by sealing,
And sealed by fluid sealant.
6. carbon-film potentiometer according to claim 1, it is characterised in that：Carbon-film potentiometer, which further includes, is fixed at pedestal
(1) one end and be connected with carbon film plate (2) the first fixed touching plate (10), be fixed at pedestal (1) other end and with carbon film plate (2)
The second fixed touching plate (11) of connection, be arranged on the revolving dial (12) in pedestal (1) center, be connected with revolving dial (12) one end
Movable contact spring (13) and the probe (14) being connected with revolving dial (12) other end, termination and the carbon film plate (2) of probe (14) paste
Touch.
7. carbon-film potentiometer according to claim 6, it is characterised in that：The carbon-film potentiometer, which further includes, is arranged on pedestal
(1) internal processor, one end of processor are connected by conducting wire with probe (14), and the other end passes through conducting wire and the first fixed touching plate
(10) be connected, processor include value detector (15), the data storage (16) that is connected with value detector (15) and with
The alarm (17) of value detector (15) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711070474.3A CN108010647B (en) | 2017-11-03 | 2017-11-03 | Carbon-film potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711070474.3A CN108010647B (en) | 2017-11-03 | 2017-11-03 | Carbon-film potentiometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108010647A true CN108010647A (en) | 2018-05-08 |
| CN108010647B CN108010647B (en) | 2019-06-28 |
Family
ID=62051203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711070474.3A Active CN108010647B (en) | 2017-11-03 | 2017-11-03 | Carbon-film potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108010647B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB510796A (en) * | 1937-02-19 | 1939-08-08 | Int Resistance Co | Improvements in and relating to rheostats and potentiometers |
| CN104021901A (en) * | 2014-06-09 | 2014-09-03 | 常州市零伍壹玖电子有限公司 | Heat-dissipating moisture-absorbing carbon-film potentiometer |
| CN203931686U (en) * | 2014-06-30 | 2014-11-05 | 常州市零伍壹玖电子有限公司 | Carbon-film potentiometer |
| CN204926943U (en) * | 2015-09-17 | 2015-12-30 | 武汉大学 | Potentiometre is adjusted and detection device based on singlechip |
| CN204991312U (en) * | 2015-07-29 | 2016-01-20 | 山东航天正和电子有限公司 | High -accuracy high -power heat dissipation type metal foil resistor |
-
2017
- 2017-11-03 CN CN201711070474.3A patent/CN108010647B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB510796A (en) * | 1937-02-19 | 1939-08-08 | Int Resistance Co | Improvements in and relating to rheostats and potentiometers |
| CN104021901A (en) * | 2014-06-09 | 2014-09-03 | 常州市零伍壹玖电子有限公司 | Heat-dissipating moisture-absorbing carbon-film potentiometer |
| CN203931686U (en) * | 2014-06-30 | 2014-11-05 | 常州市零伍壹玖电子有限公司 | Carbon-film potentiometer |
| CN204991312U (en) * | 2015-07-29 | 2016-01-20 | 山东航天正和电子有限公司 | High -accuracy high -power heat dissipation type metal foil resistor |
| CN204926943U (en) * | 2015-09-17 | 2015-12-30 | 武汉大学 | Potentiometre is adjusted and detection device based on singlechip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108010647B (en) | 2019-06-28 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 315176 59 Kechuang North Road, Wangchun Industrial Park, Haishu District, Ningbo City, Zhejiang Province Patentee after: NINGBO HUAYU ELECTRONIC Co.,Ltd. Address before: No.59 Kechuang North Road, Wangchun Industrial Park, Ningbo City, Zhejiang Province Patentee before: NINGBO HUAYU ELECTRONIC Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |