CN2065353U - Low-noise rotary potentiometer - Google Patents
Low-noise rotary potentiometer Download PDFInfo
- Publication number
- CN2065353U CN2065353U CN 90212576 CN90212576U CN2065353U CN 2065353 U CN2065353 U CN 2065353U CN 90212576 CN90212576 CN 90212576 CN 90212576 U CN90212576 U CN 90212576U CN 2065353 U CN2065353 U CN 2065353U
- Authority
- CN
- China
- Prior art keywords
- conductor
- contact brush
- potentiometer
- utility
- model
- 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.)
- Withdrawn
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- Adjustable Resistors (AREA)
Abstract
The utility model relates to a low-noise rotary potentiometer which changes the sliding contact of a contact brush and a conductor into a direct contact, comprising a resistance contact brush, a conductor contact brush, a coating resistance sheet, a conductor, an external outgoing line end, an outer casing, a rotating shaft and an upper casing. The utility model is characterized in that the resistance contact brush and the conductor contact brush are connected together, and a screwed connection conductor the other end of which is connected to the conductor is also arranged on the low-noise rotary potentiometer. The utility model doesn't affect the structure of the original potentiometer, but improves the performance of the original potentiometer to increase the accuracy and improve the duplication rate of the service life of the potentiometer.
Description
The utility model relates to a kind of potentiometer, particularly a kind of low noise rotating potentiometer.
Present individual pen simply connected, duplex and the multi-joint rotating potentiometer that adopts, because the resolving power height, good linearity, cost is low and be used widely.But above-mentioned potentiometer all exists a shortcoming, and the sliding noise that is produced when promptly resistance contact brush and conductor contact brush slide on plated film resistor disc and conductor is big, and mainly is because the caused sliding noise of anti-wear performance difference of conductor.Sliding noise will directly influence the use of potentiometer, and will be very big to electronic equipment and broadcasting equipment, broadcast receiver and television set influence, will cause work not normal when serious.
Therefore to be to provide a kind of contact brush that changes be the low noise rotating potentiometer that directly contacts with the sliding contact of conductor to the purpose of this utility model.
The utility model by resistance contact brush, conductor contact brush, plated film resistor disc, conductor, pick out the end of a thread, shell, revolve the axle and upper casing form, it is characterized in that resistance contact brush and conductor contact brush link together, also be connected with the spiral bonding conductor on it, the other end of spiral bonding conductor is connected on the conductor.
The spiral bonding conductor adopts thin copper wire coiled structure in the utility model, places the termination of spiral bonding conductor outer to be welded to connect on conductor, places the termination at spiral bonding conductor center and resistance contact brush and conductor contact brush to be welded together.
The low noise rotating potentiometer that the utility model proposed can be made again, also can be the improvement of existing various individual pen simply connecteds, duplex and multi-gang potentiometer.
Advantage of the present utility model is: improved low noise rotating potentiometer does not influence the structure of former potentiometer, but improved the performance of former potentiometer, its precision is improved, owing to being changed into by the spiral bonding conductor with the sliding contact of conductor, contact brush directly contacts, avoided the contact wear of contact brush and conductor, thereby significantly improved the useful life of potentiometer.
Description of drawings is as follows:
The former potentiometer of Fig. 1 removes the front view behind the upper casing
Fig. 2 removes front view behind the upper casing for the utility model
Fig. 3 is the left view of Fig. 2
Fig. 4 is the structural representation of spiral bonding conductor in the utility model
Fig. 2,3 and 4 have described embodiment of the present utility model, the utility model is by resistance contact brush 1, conductor contact brush 2, plated film resistor disc 3, conductor 4, pick out the end of a thread 5, shell 6, rotating shaft 7 and upper casing are formed, one end of resistance contact brush 1 is curved to be connected as a single entity to the top of conductor contact brush 2 and by welding and conductor contact brush 2, on resistance contact brush 1 and position that conductor contact brush 2 is connected, also be welded to connect spiral bonding conductor 8, spiral bonding conductor 8 adopts the thin copper wire coiled to have the helicoidal structure of five circle helixes, place the termination 9 of helix outer to be welded to connect on conductor 4, place the termination 10 at helix center and resistance contact brush 1 and conductor contact brush 2 to be welded together.
Claims (2)
1, a kind of low noise rotating potentiometer, by resistance contact brush, conductor contact brush, the plated film resistor disc, conductor, picking out the end of a thread, shell, rotating shaft and upper casing forms, it is characterized in that resistance contact brush and conductor contact brush link together, also be connected with the spiral bonding conductor on it, the other end of spiral bonding conductor is connected on the conductor.
2, low noise rotating potentiometer according to claim 1, it is characterized in that the spiral bonding conductor adopts thin copper wire coiled structure, place the termination of spiral bonding conductor outer to be welded on the conductor, place the termination at spiral bonding conductor center and resistance contact brush and conductor contact brush to be welded together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90212576 CN2065353U (en) | 1990-04-23 | 1990-04-23 | Low-noise rotary potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90212576 CN2065353U (en) | 1990-04-23 | 1990-04-23 | Low-noise rotary potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2065353U true CN2065353U (en) | 1990-11-07 |
Family
ID=4892117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90212576 Withdrawn CN2065353U (en) | 1990-04-23 | 1990-04-23 | Low-noise rotary potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2065353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101075491B (en) * | 2006-05-19 | 2012-02-22 | Abb专利有限公司 | Potentiometer |
-
1990
- 1990-04-23 CN CN 90212576 patent/CN2065353U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101075491B (en) * | 2006-05-19 | 2012-02-22 | Abb专利有限公司 | Potentiometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |