CN2284442Y - Step potentiometer - Google Patents
Step potentiometer Download PDFInfo
- Publication number
- CN2284442Y CN2284442Y CN 96233640 CN96233640U CN2284442Y CN 2284442 Y CN2284442 Y CN 2284442Y CN 96233640 CN96233640 CN 96233640 CN 96233640 U CN96233640 U CN 96233640U CN 2284442 Y CN2284442 Y CN 2284442Y
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- CN
- China
- Prior art keywords
- resistance
- rotating shaft
- brush
- shell
- potentiometer
- 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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- Adjustable Resistors (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model relates to a potentiometer in an electric appliance component, comprising an outer shell 1, a rotating shaft 3, a resistance plate which is provided with a resistance 16 and a conducting ring 20 and electric brushes which are linked with a rotating shaft, contact the conducting ring and can be communicated with a resistance electric appliance. The resistance has at least two electricities which are connected and guide sheets 17 which are communicated with the resistance and are orderly arranged to form a circular ring shape. The service life increases 10 to 20 times, and the electric potential value is accurate; the synchronous precision of the double linked structure is high, the moving noise can not be generated, and the running noise is minimal.
Description
The utility model relates to the potentiometer in the electric elements.
Existing potentiometer, the resistance board that resistance is arranged and the conducting ring that link by shell, with shell link with rotating shaft and can contact and the brush of electric UNICOM resistance and conducting ring.Resistance on the resistance board is the open annular fixed carbon resister, resistance end and conducting ring respectively with the electric connection of circuit, rotating shaft, brush moves, and changes the electric current area of fixed carbon resister of flowing through, thereby changes resistance value.The brush that this fixed carbon resister is moved easily scratches damage, and noise is big during operation, the life-span short.The duplex potentiometer that constitutes by two groups of resistance boards and brush that adopts particularly that same rotating shaft drives, because the carbon film skewness of fixed carbon resister, the symmetry of brush operation is poor, therefore, cause duplex potentiometer in when operation, it is very big that two resistance values differ, and causes two current potentials can not be synchronous; In addition, two signals produce the phase mutual interference, and its Signal Spacing is poor, is not suitable for stereo set especially.
Given this, the purpose of this utility model is to provide a kind of step potentiometer of long service life, and further provides a kind of synchronism good and duplex step potentiometer that can the phase mutual interference.
The utility model adopts the conducting strip of a plurality of joining resistance and respective numbers to replace the fixed carbon resister of existing potentiometer, and mobile brush does not contact with resistance and contacts with conducting strip and to constitute potentiometer; And further adopt spacer and above-mentioned potentiometer element is set and constitute duplex potentiometer, thereby realize the purpose of this utility model in bilateral symmetry.
Step potentiometer of the present utility model (referring to accompanying drawing), comprise shell (1), rotating shaft (3), the resistance board of resistance (16) and conducting ring (20) is arranged, contact with rotating shaft interlock and with conducting ring and can with the brush (11,13) of the electric connection of resistance, above-mentioned resistance has at least two and electric linking, and has with resistance UNICOM and is arranged in order the conducting strip (17) that circularizes.
There is the spacer of ring piece shape at above-mentioned shell middle part, and above-mentioned resistance board and brush have two groups, is placed in the spacer both sides symmetrically and constitutes the twin structure.
In the above-mentioned shell detent mechanism is arranged, this detent mechanism has the positioning seat (4) that connects in the shell, the steel ball (7) that links with spring (6) in the ball pin-and-hole of positioning seat, the location-plate (8) that links with rotating shaft, corresponding on the location-plate and the location hole (9) that can be respectively coincide with steel ball with conducting strip, above-mentioned resistance and conducting strip, conducting ring are arranged on the insulated substrate (15) that connects with shell, and above-mentioned brush is arranged on the brushgear housing (22,23) that links with rotating shaft.
Above-mentioned resistance and conducting strip are in the insulated substrate ipsilateral or the insulated substrate two sides that are placed in, and above-mentioned conducting strip and conducting ring are at the insulated substrate ipsilateral.
Use of the present utility model is identical with existing potentiometer.
Said structure of the present utility model makes it compare with existing potentiometer and has following advantage and effect.
When one, brush rotates operation, contact each conducting strip of corresponding connection with resistance one by one successively, constitute the stepping structure.Because of the not direct contact resistance of its brush, even if select fixed carbon resister for use, resistance can not wear and tear yet, and potential value is accurate, does not produce moving noise, and the utility model life-span can increase by 10～20 times, and noise is extremely low.
Therefore two, duplex structure of the present utility model, because of the precision of its single resistance can be selected as required, can be similar to 0, two current potential synchronization accuracy high for the error of two resistance of two each symmetrical settings.In addition, spacer is separated two signals of telecommunication, prevents mutual inductive interference.Be specially adapted to stereo set.
The detent mechanism that three, positioning seat and location-plate are arranged makes the step run of brush accurate, and again because of simple in structure, institute takes up space little, so stepping classification amount is big.
Below, use embodiment and accompanying drawing thereof again, the utility model is described in further detail.
Brief description of drawings.
Fig. 1 is the structural representation of a kind of step potentiometer of the present utility model.
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1.For the clear resistance that shows connects, resistance is plotted in conducting strip institute on the whole.
Fig. 3 is the structural representation of the spacer of Fig. 1.
Embodiment 1
A kind of step potentiometer of the present utility model, as shown in drawings.Constitute by shell, rotating shaft, detent mechanism, resistance board, brush, spacer etc.
Above-mentioned shell 1 is the columnar structured of common potentiometer shell, and outer faucal end has cover plate 2.
Above-mentioned rotating shaft 3 is the multidiameter shape of common potentiometer rotating shaft, and its pommel stretches out shell.
Above-mentioned detent mechanism has the positioning seat 4 that is packed in shell 1 bottom, is short cylindrical shape, and the suitable position of positioning seat has ball pin-and-hole 5 vertically, and the steel ball 7 that joins with spring 6 is arranged in the ball pin-and-hole.Rotating shaft 3 runs through the center hole of positioning seat.There is discoidal location-plate 8 positioning seat 4 tops, and the non-circular hole of the common structure at this location-plate center matches with the non-round portion of rotating shaft 3 and rotates with rotating shaft.A plurality of location holes 9 that are arranged in circle, also can match with steel ball 7 are arranged on the location-plate plate face.
Above-mentioned resistance board and brush have structure symmetrical up and down two.The resistance board 10 on top and brush 11 constitute the first line of a couplet, and the resistance board 12 of bottom and brush 13 constitute the second line of a couplet.Spacer 14 is arranged between above-mentioned two.Resistance board 10 and resistance board 12 structures are symmetrical, and the insulated substrate 15 of annular is arranged, and post resistance 16 admittedly on the positive side of insulated substrate, and resistance 16 is selected metal film section resistance for use, and a plurality of resistance become cascaded structure and arrange to circularize.Above-mentioned resistance also can need be parallel-connection structure by design.Admittedly post a plurality of conducting strips 17 that are arranged in annular on the face of tossing about of insulated substrate.The quantity of conducting strip adds 1 for the resistance number, and conducting strip is connected with two end nodes 18 of series resistance and the node 19 that connects of adjacent resistor with lead.The quantity of conducting strip is identical with the quantity and the position of location hole 9 with the position, becomes corresponding one by one.The radially inner side of the electric waveguide plate of insulated substrate 15 posts the conducting ring 20 of ring piece shape admittedly.Each conducting strip equates with the spacing of conducting ring.The spacers 14 that two resistance boards 10 and 12 rely on two spacer rings 21 to clamp are separated by, the shell 1 and be close to shell and be linked into fixed structure of packing into.Brush 11 and brush 13 also are symmetrical structure, all make strip shape with elastic metallic, admittedly be attached to respectively on the end face of the brushgear housing 22 of circular plate type and brushgear housing 23, brush 11, brush 13 are close to the conducting strip 17 and the conducting ring 20 of resistance board 10, resistance board 12 respectively, make conducting strip 17 and conducting ring 20 electric connections.The non-circular hole at above-mentioned brushgear housing 22 centers cooperates with the non-round portion suit of rotating shaft 13, and the non-circular hole of brushgear housing 23 cooperates with the non-circular shaft part suit of brushgear housing 22 upper ends, and brushgear housing 22 and brushgear housing 23 can be rotated synchronously with rotating shaft 3.Thereby constitute a kind of duplex potentiometer structure of the present utility model.During use, with conducting strip and the conducting ring and the circuit connection of termination.
Present embodiment is removed one group of resistance board and brush structure and spacer, promptly constitutes simply connected formula potentiometer.
Claims (4)
1, step potentiometer, comprise shell (1), rotating shaft (3), the resistance board of resistance (16) and conducting ring (20) is arranged, contact with rotating shaft interlock and with conducting ring and can with the brush (11,13) of the electric UNICOM of resistance, it is characterized in that above-mentioned resistance has at least two and electric linking, have with resistance UNICOM and be arranged in order into the conducting strip (17) of annular.
2, step potentiometer as claimed in claim 1 is characterized in that there is the spacer of toroidal ring piece shape at said shell middle part, and above-mentioned resistance board and brush have two groups, is placed in the spacer both sides symmetrically and constitutes the twin structure.
3, step potentiometer as claimed in claim 1 or 2, it is characterized in that in the said shell detent mechanism being arranged, this detent mechanism has the positioning seat (4) that connects in the shell, spring (6) in the ball pin-and-hole of positioning seat and the steel ball (7) that joins, the location-plate (8) that links with rotating shaft, corresponding on the location-plate and the location hole (9) that can be respectively coincide with steel ball with conducting strip, said resistance and conducting strip, conducting ring are arranged on the insulated substrate (15) that connects with shell, and said brush is arranged on the brushgear housing (22,23) that links with rotating shaft.
4, step potentiometer as claimed in claim 3 is characterized in that said resistance, conducting strip in the insulated substrate ipsilateral or the insulated substrate two sides that are placed in, and said conducting strip and conducting ring are at the insulated substrate ipsilateral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96233640 CN2284442Y (en) | 1996-08-27 | 1996-08-27 | Step potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96233640 CN2284442Y (en) | 1996-08-27 | 1996-08-27 | Step potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2284442Y true CN2284442Y (en) | 1998-06-17 |
Family
ID=33910268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96233640 Expired - Fee Related CN2284442Y (en) | 1996-08-27 | 1996-08-27 | Step potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2284442Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183579B (en) * | 2007-10-15 | 2010-07-21 | 深圳和而泰智能控制股份有限公司 | Discrete potentiometer |
| CN103616555A (en) * | 2013-11-07 | 2014-03-05 | 中联重科股份有限公司 | Potentiometer, engine hand throttle control system and crane |
| CN103632782A (en) * | 2013-12-12 | 2014-03-12 | 东莞市长泰尔电子有限公司 | Potential encoding integrated structure |
| CN103632783A (en) * | 2013-12-12 | 2014-03-12 | 东莞市长泰尔电子有限公司 | Multifunctional encoder |
-
1996
- 1996-08-27 CN CN 96233640 patent/CN2284442Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183579B (en) * | 2007-10-15 | 2010-07-21 | 深圳和而泰智能控制股份有限公司 | Discrete potentiometer |
| CN103616555A (en) * | 2013-11-07 | 2014-03-05 | 中联重科股份有限公司 | Potentiometer, engine hand throttle control system and crane |
| CN103616555B (en) * | 2013-11-07 | 2016-06-29 | 中联重科股份有限公司 | Potentiometer, manual accelerator of engine control system and crane |
| CN103632782A (en) * | 2013-12-12 | 2014-03-12 | 东莞市长泰尔电子有限公司 | Potential encoding integrated structure |
| CN103632783A (en) * | 2013-12-12 | 2014-03-12 | 东莞市长泰尔电子有限公司 | Multifunctional encoder |
| WO2015085670A1 (en) * | 2013-12-12 | 2015-06-18 | 东莞市长泰尔电子有限公司 | Potential encoding integrated structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |