CN201514828U - Conductive plastic potentiometer - Google Patents
Conductive plastic potentiometer Download PDFInfo
- Publication number
- CN201514828U CN201514828U CN2009203043662U CN200920304366U CN201514828U CN 201514828 U CN201514828 U CN 201514828U CN 2009203043662 U CN2009203043662 U CN 2009203043662U CN 200920304366 U CN200920304366 U CN 200920304366U CN 201514828 U CN201514828 U CN 201514828U
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- CN
- China
- Prior art keywords
- conductive plastic
- potentiometer
- plastic potentiometer
- bearing
- current collector
- 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.)
- Expired - Fee Related
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- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The utility model discloses a conductive plastic potentiometer which comprises a revolving shaft (1), a shell (4), a base (3), a lead (5) and a bearing (2); a shaft sleeve (10) is fixedly sheathed on the revolving shaft; a resistor disc (6) is bonded on the base (3) and is matched with an electric brush module which consists of a current collector (8), an electric brush holder (9), a reed (12) and an electric brush (7); and the revolving shaft (1) is fixed on the bearing (2) by a washer (15) and a clamp ring (16). The conductive plastic potentiometer utilizes the high finish of the current collector (8) for increasing the wear resistance of products, and utilizes the pressure generated by the self-elasticity of current collecting wires (13) to the current collector for not only better meeting the contact requirements on mechanical performances of impact, shock and the like of the products, but also reducing the influence of wear of metal parts on product performance parameters. The conductive plastic potentiometer also solves the problems that the rated power of a common potentiometer with light weight and small volume is insufficient, and the service life thereof is not long enough due to rotary load, and the like.
Description
Technical field
The utility model belongs to field of electrical components, relates in particular to a kind of accurate conductive plastic potentiometer.
Background technology
The conductive plastics transducer occurs for life-span and the integrity problem that solves carbon-film potentiometer and wirewound potential meter.The characteristics of conductive plastics transducer maximum are that rotation is long friction durability, also have in addition: advantages such as output smoothness is little, resolving power is excellent, reliability is high, resistance to chemical attack.The conductive plastics transducer has been subjected to paying close attention to widely once occurring, and not only is used widely industrial, and in the military field of various countries, from the guided missile to the spaceship, space shuttle etc. all adopts this transducer.The conductive plastics transducer specifically uses in following field: position transducer, raise clothes control, light control, volume control, radio attenuation device, automatic senser, accurate measurement, non linear system, valve control, high temperature measurement, plotter, medical instrument and equipment, recorder, generally reponse system and industrial robot, oil exploration, radar, automobile, boats and ships and Aircraft Vectoring System, airship, rocket launching etc.Under some occasion, it is long to need conductive plastic potentiometer to have a rated power height, rotary load life-span, and will have independent linearity height, weight is little and shaft run-out is little characteristics.At this moment, common conductive plastic potentiometer can't reach above-mentioned requirements.
The utility model content
The purpose of this utility model is: a kind of conductive plastic potentiometer is provided, be intended to solve lightweight, the common conductive plastic potentiometer of small size and can not satisfy the problem of rated power under some occasion, rotary load life requirements, also can solve independent linearity, shaft run-out problem simultaneously.
The purpose of this utility model is achieved in that
A kind of conductive plastic potentiometer, rotating shaft 1 is installed on the base 3 by bearing 2, bearing 2 two ends are fixing by collar 16, between bearing 2 and the collar 16 packing ring 15 is housed, resistor disc 6 pines are enclosed within the rotating shaft 1 and are bonded on the base 3, in resistor disc 6, be provided with three stems 17 and 5 be drawn out to outside the shell 4 by going between respectively, one end of reed 12 is fixed on by rivet 11 that the other end is connected with brush 7 on the brushgear housing 9, brushgear housing 9 is contained in the rotating shaft 1 by axle sleeve 10, it is characterized in that collecting ring 8 is contained in the rotating shaft by axle sleeve 10, during an end of afflux silk 13 is fixed on the stem 15 other end be stuck in the groove of collecting ring 8.
The beneficial effects of the utility model are:
1, this potentiometer when in use, driving brush assembly of electric by rotating shaft rotates, be installed in on-chip afflux silk and collecting ring contact matching, the brush signal of telecommunication arrives lead-in wire by collecting ring again to the afflux silk, middle-end obtains the synchronous signal of telecommunication of brush operation, and the fit system of collecting ring and afflux silk is a resistance to wear of having utilized the best bright finish enhancing product of collecting ring, with the elasticity of afflux silk self to the pressure that collecting ring produces, they can be contacted well.This mode had both preferably resolved the contact requirement of mechanical performances such as the vibration, impact of product, had also strengthened the resistance to wear of product parts.
2, brush of the present utility model adopts board-like rake shape structure.The structure of brush has very big influence to the various performance parameters of product, comprise brush thickness, refer to length and bending angle etc. more, the proportionate relationship of these parameters is determining the applicability of brush.After the process test of many times, this potentiometer has selected for use this contact point more, and single contact point is relatively independent, but the brush structure that piece electrical links together, so the contact reliability of brush is very high.
On material, selected to contain the multicomponent alloy material brush of rare metal, this material hardness height, good springiness, fatigue resistance are good, and the high abrasion that has guaranteed product requires and keeps excellent contact and do not produce the contact requirement of deformation under the effect of external force such as acceleration, impact, vibration.
Between 0.15N～0.2N, excessive pressure can make the rete of resistive element be damaged to definite brush to the pressure of resistor disc on the basis of test of many times, wearing and tearing too early, and insufficient pressure can reduce the reliability of contact.
3, this potentiometer main diameter is φ 15mm, but rated power requires 0.5W, is 2～5 times of common conductive plastic potentiometer, for meeting the demands resistive element is carried out high power design and lightweight requirement, and product casing adopts the good aluminum metallic material of light weight thermal conductivity.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Each parts, position and numbering among the figure: rotating shaft 1, bearing 2, base 3, shell 4, lead-in wire 5, resistor disc 6, brush 7, collecting ring 8, brushgear housing 9, axle sleeve 10, rivet 11, reed 12, afflux silk 13, middle stem 14, packing ring 15, collar 16, stem 17
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only is used to explain the utility model, and be not used in qualification the utility model.
A kind of conductive plastic potentiometer, rotating shaft 1 is installed on the base 3 by bearing 2, bearing 2 two ends are fixing by collar 16, between bearing 2 and the collar 16 packing ring 15 is housed, resistor disc 6 pines are enclosed within the rotating shaft 1 and are bonded on the base 3, in resistor disc 6, be provided with three stems 17 and 5 be drawn out to outside the shell 4 by going between respectively, one end of reed 12 is fixed on by rivet 11 that the other end is connected with brush 7 on the brushgear housing 9, brushgear housing 9 is contained in the rotating shaft 1 by axle sleeve 10, it is characterized in that collecting ring 8 is contained in the rotating shaft by axle sleeve 10, during an end of afflux silk 13 is fixed on the stem 15 other end be stuck in the groove of collecting ring 8.。
The afflux silk is stuck in the groove on the collecting ring, for reaching better effect, preferred afflux silk is hexa-atomic alloy silk (Pd/Ag/Cu/Au/Pt/Zn) material, collecting ring fineness in machining reaches more than 0.8, and carry out polishing, before assembling on this position wear-resisting oil (the suitable environment temperature is-65 ℃～+ 150 ℃).
For guaranteeing that potentiometer can bear bigger power preferably with resistor disc 6 broadening, select metal shell for use.For guaranteeing shaft run-out, select little play bearing for use.
Between the preferred pressure 0.15N～0.2N of brush to resistor disc.
Claims (4)
1. conductive plastic potentiometer, rotating shaft (1) is installed on the base (3) by bearing (2), bearing (2) two ends are fixing by collar (16), between bearing (2) and the collar (16) packing ring (15) is housed, resistor disc (6) is bonded on the base (3), being provided with three stems (17) in resistor disc (6) also is drawn out to outside the shell (4) by lead-in wire (5) respectively, one end of reed (12) is fixed on the last other end of brushgear housing (9) by rivet (11) and is connected with brush (7), brushgear housing (9) is contained in the rotating shaft (1) by axle sleeve (10), it is characterized in that collecting ring (8) is contained in the rotating shaft by axle sleeve (10), an end of afflux silk (13) is fixed on the last other end of middle stem (14) and is stuck in the groove of collecting ring (8).
2. conductive plastic potentiometer as claimed in claim 1, the material that it is characterized in that afflux silk (13) are hexa-atomic alloy silk (Pd/Ag/Cu/Au/Pt/Zn).
3. conductive plastic potentiometer as claimed in claim 1 or 2 is characterized in that shell (4) is a metal.
4. conductive plastic potentiometer as claimed in claim 1 or 2 is characterized in that: described brush (7) is board-like rake shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203043662U CN201514828U (en) | 2009-06-12 | 2009-06-12 | Conductive plastic potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203043662U CN201514828U (en) | 2009-06-12 | 2009-06-12 | Conductive plastic potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514828U true CN201514828U (en) | 2010-06-23 |
Family
ID=42486239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203043662U Expired - Fee Related CN201514828U (en) | 2009-06-12 | 2009-06-12 | Conductive plastic potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201514828U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140092A (en) * | 2015-09-18 | 2015-12-09 | 中广核达胜加速器技术有限公司 | Beam primary focusing automatic adjusting device |
| CN111755185A (en) * | 2020-07-09 | 2020-10-09 | 四川航天烽火伺服控制技术有限公司 | Angle potentiometer |
-
2009
- 2009-06-12 CN CN2009203043662U patent/CN201514828U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140092A (en) * | 2015-09-18 | 2015-12-09 | 中广核达胜加速器技术有限公司 | Beam primary focusing automatic adjusting device |
| CN105140092B (en) * | 2015-09-18 | 2017-08-25 | 中广核达胜加速器技术有限公司 | Poly- self-checking device at the beginning of a kind of line |
| CN111755185A (en) * | 2020-07-09 | 2020-10-09 | 四川航天烽火伺服控制技术有限公司 | Angle potentiometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20140612 |