CN201773654U - Wire-wound potentiometer - Google Patents
Wire-wound potentiometer Download PDFInfo
- Publication number
- CN201773654U CN201773654U CN2010202926488U CN201020292648U CN201773654U CN 201773654 U CN201773654 U CN 201773654U CN 2010202926488 U CN2010202926488 U CN 2010202926488U CN 201020292648 U CN201020292648 U CN 201020292648U CN 201773654 U CN201773654 U CN 201773654U
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- contact
- sheet
- output
- contact spring
- potential meter
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Abstract
The utility model discloses a wire-wound potentiometer comprising a resistance plate (1), an intermediate guiding soldering lug (2) and a contact spring (3), wherein the contact spring (3) is provided with an input contact (3.1.1) that is connected with the resistance plate (1) in a sliding manner, and an output contact (3.2.1) that is connected with the intermediate guiding soldering lug (2) in a sliding manner; the numbers of the input contact (3.1.1) and the output contact (3.2.1) are at least two; the contact spring (3) is provided with a circumferential support chip (3.1) and an axial support chip (3.2); the input contact (3.1.1) is arranged on the circumferential support chip (3.1) of the contact spring (3), and the output contact (3.2.1) is arranged on the axial support chip (3.2) of the contact spring (3). The wire-wound potentiometer has the advantages of more stable output resistance value or voltage.
Description
Technical field
The utility model relates to the electronic devices and components field, relates in particular to a kind of wirewound potential meter, specifically is meant a kind of wirewound potential meter.
Background technology
Wirewound potential meter is to have the resistive element that three exits, resistance can be regulated by certain Changing Pattern.Wirewound potential meter usually by resistance board and movably brush form, when brush when resistance board moves, promptly obtain to become with displacement the resistance value or the voltage of certain relation at output, described brush generally adopts contact spring to make, one of them output with in lead weld tabs and draw.
Existing contact spring generally has an input contact and an output contact, the input contact contacts with resistance board, output contact is connected with output, this simple in structure, be convenient to make, but in use because the pressure that the contact contacts with resistance board is subject to the influence of extraneous factor, thereby form unsettled contact resistance, thereby cause a series of integrity problems such as output resistance or spread of voltage take place.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of output comparatively stable wirewound potential meter.
Technical solution of the present utility model provides following a kind of wirewound potential meter, comprise resistance board, in lead weld tabs and contact spring, contact spring be provided with the input contact of slipping with resistance board, with in lead the output contact that weld tabs slips, described input contact is at least two contacts.
By above scheme, the input contact of the contact spring of the utility model wirewound potential meter is at least two contacts, input contact and resistance board contact point increase like this, even the contact resistance of one of them contact changes like this, average contact resistance is more tended towards stability, thereby the resistance value or the voltage of output will be more stable.
As improvement, described output contact is at least two contacts, and this improvement can a step improve the stability of output.
As improvement, described contact spring is provided with circumferentially a sheet and axially a sheet, described input contact is located at circumferential the propping up on the sheet that contact spring has, described output contact is located at axial the propping up on the sheet that contact spring has, this improvement can effectively improve the pressure that the input contact contacts with resistance board, improve output contact with in lead the pressure that weld tabs contacts, and then can effectively guarantee the stability exported.
As preferably, described circumferential sheet has connecting portion and extension, has angle α between described connecting portion and the extension, described angle α is 130 °～175 °, described input contact is located at the end of extension, this improvement project can further improve the pressure that the input contact contacts with resistance board, and reliability is higher.
As preferably, the place extension is provided with the strip opening between the described input contact, and this preferred version can effectively improve the stability of input.
As preferably, the body of described axial sheet and contact spring has angle β, and described angle β is 5 °～45 °, and described output contact is located at the axially end of a sheet, this improvement project can further improve output contact with in lead the pressure that weld tabs contacts, reliability is higher.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the front view of contact spring.
Fig. 4 is the left view of Fig. 3.
Shown in the figure:
1, resistance board, 2, in lead weld tabs, 3, contact spring, 3.1, circumferentially prop up sheet, 3.1.1, input contact, 3.1.2, connecting portion, 3.1.3, extension, 3.2, axially prop up sheet, 3.2.1, output contact.
Embodiment
Embodiment of the present utility model is described in detail the technical solution of the utility model for better illustrating below in conjunction with accompanying drawing.
As shown in FIG., comprise resistance board 1, in lead weld tabs 2 and contact spring 3, contact spring 3 be provided with the input contact 3.1.1 that slips with resistance board 1, with in lead the output contact 3.2.1 that weld tabs 2 slips, described input contact 3.1.1 and output contact 3.2.1 are two contacts.
Wherein, described contact spring 3 is provided with circumferentially a sheet 3.1 and axially a sheet 3.2, described input contact 3.1.1 is located at circumferential the propping up on the sheet 3.1 that contact spring 3 has, described output contact 3.2.1 is located at axial the propping up on the sheet 3.2 that contact spring 3 has, described circumferential sheet 3.1 has connecting portion 3.1.2 and extension 3.1.3, the angle α that has 150 ° between described connecting portion 3.1.2 and the extension 3.1.3, place extension 3.1.3 is provided with the strip opening between the input contact 3.1.1 that states, described input contact 3.1.1 all is located at the end of extension 3.1.3, the body of described axial sheet 3.2 and contact spring 3 has 30 ° angle β, and described output contact 3.2.1 all is located at the axially end of a sheet 3.2.
In the above-described embodiments, to a kind of preferred forms of the utility model, obviously, under inventive concept of the present utility model, still can make a lot of variations.At this, should illustrate that any change of being made all will fall in the protection range of the present utility model under inventive concept of the present utility model.
Claims (6)
1. wirewound potential meter, comprise resistance board (1), in lead weld tabs (2) and contact spring (3), contact spring (3) be provided with the input contact (3.1.1) of slipping with resistance board (1), with in lead the output contact (3.2.1) that weld tabs (2) slips, it is characterized in that: described input contact (3.1.1) is at least two contacts.
2. wirewound potential meter according to claim 1 is characterized in that: described output contact (3.2.1) is at least two contacts.
3. wirewound potential meter according to claim 2, it is characterized in that: described contact spring (3) is provided with circumferentially a sheet (3.1) and axially a sheet (3.2), described input contact (3.1.1) is located at circumferentially props up on the sheet (3.1), and described output contact (3.2.1) is located at axially and props up on the sheet (3.2).
4. wirewound potential meter according to claim 3, it is characterized in that: described circumferential sheet (3.1) has connecting portion (3.1.2) and extension (3.1.3), has angle α between described connecting portion (3.1.2) and the extension (3.1.3), described angle α is 130 °～175 °, and described input contact (3.1.1) all is located at the end of extension (3.1.3).
5. wirewound potential meter according to claim 4 is characterized in that: place extension (3.1.3) is provided with the strip opening between the described input contact (3.1.1).
6. wirewound potential meter according to claim 3, it is characterized in that: described axial sheet (3.2) has angle β with the body of contact spring (3), described angle β is 5 °～45 °, and described output contact (3.2.1) all is located at the axially end of a sheet (3.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202926488U CN201773654U (en) | 2010-08-11 | 2010-08-11 | Wire-wound potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202926488U CN201773654U (en) | 2010-08-11 | 2010-08-11 | Wire-wound potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773654U true CN201773654U (en) | 2011-03-23 |
Family
ID=43753496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202926488U Expired - Fee Related CN201773654U (en) | 2010-08-11 | 2010-08-11 | Wire-wound potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394165A (en) * | 2011-10-12 | 2012-03-28 | 成都兴业雷安电子有限公司 | Method for winding resistance board |
-
2010
- 2010-08-11 CN CN2010202926488U patent/CN201773654U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394165A (en) * | 2011-10-12 | 2012-03-28 | 成都兴业雷安电子有限公司 | Method for winding resistance board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20150811 |
|
| EXPY | Termination of patent right or utility model |