CN87204084U - Ball contact potentiometer - Google Patents
Ball contact potentiometer Download PDFInfo
- Publication number
- CN87204084U CN87204084U CN 87204084 CN87204084U CN87204084U CN 87204084 U CN87204084 U CN 87204084U CN 87204084 CN87204084 CN 87204084 CN 87204084 U CN87204084 U CN 87204084U CN 87204084 U CN87204084 U CN 87204084U
- Authority
- CN
- China
- Prior art keywords
- ball
- potentiometer
- conducting strip
- resistive film
- 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.)
- Ceased
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- Adjustable Resistors (AREA)
Abstract
The utility model discloses a ball contact potentiometer, comprising a scoop-shaped conducting strip and balls. Owing to contacts are rolling contacts, the ball contact potentiometer overcomes the disadvantage that a resistive film is easy to grind while causes a bad contact, and effectively improves the stability and the reliability of the potentiometer. The utility model has the advantages of simple structure, easy fabrication and long service life.
Description
The utility model relates to potentiometer.
Existing potentiometer, in its rotation process, contact, elastic conducting strip end and the frictional resistance between the resistive film in the rotating shaft are very big, and after use a period of time, resistive film promptly is worn, and causes loose contact and noise, has had a strong impact on useful life and quality.
The purpose of this utility model is, designs a kind of ball contact potentiometer, with the wearing and tearing of minimizing resistive film, thereby reduces the stereo set noise that is brought by its wearing and tearing, the useful life of improving potentiometer.
Below in conjunction with accompanying drawing the utility model is explained:
As shown in Figure 1, the utility model comprises the rotating shaft identical with having potentiometer now (1), cover plate (2), leading foot (4), spring leaf (5), resistive film (7), pedestal (8).In order to realize purpose described in the utility model, in potentiometer, be provided with a spoon shape conducting strip (3) and a spherical ball (6) that links with rotating shaft (1).Ball (6) places spoonful concave surface of shape conducting strip (3) end and keeps good electrical contact with resistive film (7).
When rotating shaft (1), a spoon shape conducting strip (3) drives a ball (6) and goes up at resistive film (7) and roll, and forms a rolling contact.Thus, it is very little that its wearing resistance is kept to, and protected resistive film (7) not frayed effectively.Wherein the size of ball (6) generally is directly proportional with the watt level of potentiometer.The concave spherical surface diameter of spoon shape conducting strip (7) end to be being slightly larger than the diameter of ball (3), and it can be rolled flexibly and can keep good electrical contact degree of being.
Contact described in the utility model also can be designed as the roller structure, and promptly described ball (6) replaces with roller, and the spoon shape end of conducting strip (3) changes the structure that links to each other with described roller central shaft into, makes it to become the leading arm of roller.
The utlity model has characteristics simple in structure, easy to manufacture, stable and reliable for performance, long service life.
In the accompanying drawing:
1---rotating shaft 5---spring leaf
2---cover plate 6---ball
3---spoon shape conducting strip 7---resistive film
4---leading foot 8---pedestal
Claims (2)
1, a kind of ball contact potential device, it comprises rotating shaft (1), cover plate (2), leading foot (4), spring leaf (5), resistive film (7), pedestal (8), feature of the present utility model is, it also comprises the spoon shape conducting strip (3) and the spherical ball (6) that link with rotating shaft (1), and ball (6) places spoonful concave surface of shape conducting strip (3) end and contacts with resistive film (7).
2, potentiometer according to claim 1, its feature are that also described spherical ball (6) is when replacing with roller, and the spoon shape end of conducting strip (3) changes the structure that links to each other with described roller central shaft into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87204084 CN87204084U (en) | 1987-03-31 | 1987-03-31 | Ball contact potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87204084 CN87204084U (en) | 1987-03-31 | 1987-03-31 | Ball contact potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87204084U true CN87204084U (en) | 1987-12-02 |
Family
ID=4820004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87204084 Ceased CN87204084U (en) | 1987-03-31 | 1987-03-31 | Ball contact potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87204084U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006314A (en) * | 2015-07-30 | 2015-10-28 | 成都中微电微波技术有限公司 | Potentiometer with gear adjustment function |
| CN105023672A (en) * | 2015-07-30 | 2015-11-04 | 成都中微电微波技术有限公司 | Rolling potentiometer |
| CN107307844A (en) * | 2017-07-21 | 2017-11-03 | 温州星康医学科技有限公司 | A kind of intelligent visual function preliminary examination instrument |
| CN109390828A (en) * | 2018-09-05 | 2019-02-26 | 程倍勇 | Current Voltage transmission mechanism |
| 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 |
| CN112687440A (en) * | 2019-10-18 | 2021-04-20 | 曾信弘 | Variable resistance component and mechanical regulating device |
-
1987
- 1987-03-31 CN CN 87204084 patent/CN87204084U/en not_active Ceased
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006314A (en) * | 2015-07-30 | 2015-10-28 | 成都中微电微波技术有限公司 | Potentiometer with gear adjustment function |
| CN105023672A (en) * | 2015-07-30 | 2015-11-04 | 成都中微电微波技术有限公司 | Rolling potentiometer |
| CN107307844A (en) * | 2017-07-21 | 2017-11-03 | 温州星康医学科技有限公司 | A kind of intelligent visual function preliminary examination instrument |
| CN109390828A (en) * | 2018-09-05 | 2019-02-26 | 程倍勇 | Current Voltage transmission mechanism |
| CN112687440A (en) * | 2019-10-18 | 2021-04-20 | 曾信弘 | Variable resistance component and mechanical regulating device |
| CN112687440B (en) * | 2019-10-18 | 2023-05-30 | 曾信弘 | Variable resistor assembly and mechanical regulating 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right | ||
| CE01 | Termination of patent right |
Termination date: 19880608 |