CN201956152U - Improved rotary potentiometer - Google Patents
Improved rotary potentiometer Download PDFInfo
- Publication number
- CN201956152U CN201956152U CN2011200522516U CN201120052251U CN201956152U CN 201956152 U CN201956152 U CN 201956152U CN 2011200522516 U CN2011200522516 U CN 2011200522516U CN 201120052251 U CN201120052251 U CN 201120052251U CN 201956152 U CN201956152 U CN 201956152U
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- CN
- China
- Prior art keywords
- bolt
- spring
- annular resistor
- improved rotary
- ring
- 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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Abstract
The utility model discloses an improved rotary potentiometer which comprises a ring-shaped resistor, a fixing electric brush fixedly connected to the lower end of the ring-shaped resistor, and a movable electric brush with one end positioned in the center of the ring-shaped resistor and the other end in contact with the ring-shaped resistor. The improved rotary potentiometer is characterized in that the movable electric brush is in contact with the ring-shaped resistor through a contact terminal device arranged at the end far away from the center of the ring-shaped resistor; the contact terminal device comprises a round rolling member positioned at the lower part of a movable brush sheet, a bolt connecting the round rolling member and the movable brush sheet, and a spring in a through chute; the bolt leads the round rolling member and the movable brush sheet to be parallel through a center hole on the round rolling member, a screw cap at the upper part of the bolt, and a spring applying pre-fastening force to the bolt; one end of the spring is fixedly connected with the bolt and the other end of the spring is fixedly connected with the through chute at the end far away from the round rolling member; and the round rolling member, the bolt and the spring all adopt optimal conducting material.
Description
Technical field
The utility model relates to the potentiometer technology, relates in particular to a kind of improved rotary current potential meter.
Background technology
Existing rotary current potential meter be by annular resistor with its fixed brush of fixedlying connected in the lower end, and have an end and be positioned at the annular resistor center, (as shown in Figure 1) that the moving brush of the movable brush sheet that the other end contacts with annular resistor (movable brush sheet can around the annular resistor center steering as hour hands) is formed; Described annular resistor generally obtains by resistive element is curved circular arc, contacts with the effective of annular resistor in order to guarantee moving brush, often requires the annular resistor inner surface is carried out processed, makes it have smooth inner surface; Even so, still there is following shortcoming in the rotary current potential meter of this kind: in the repeatedly friction of sliding contact and ring resistance device inner surface, the both can be worn, thereby make level and smooth contact become impossible, therefore, can cause because of loose contact when energising, producing electric spark, be unfavorable for the safe handling of electrical appliance.
Summary of the invention
The purpose of the utility model: propose a kind of improved rotary current potential meter, can effectively solve the prior art rotating potentiometer in the defective of repeatedly using the back loose contact.
In order to realize the purpose of the utility model, intend adopting following technical scheme to be achieved:
By annular resistor, the fixed brush of fixedlying connected with the annular resistor lower end, and one end be positioned at the annular resistor center, the rotational potentiometer that the moving brush that the other end contacts with annular resistor is formed, it is characterized in that: moving brush is to contact with annular resistor by being arranged on its contact apparatus away from an end at annular resistor center.
As preferred version: described contact apparatus is by the circular scrolling parts that are positioned at movable brush sheet bottom, connects the bolt of circular scrolling parts and movable brush sheet, and the spring composition that is positioned at groove.
As preferred version: described bolt is the nut by the centre bore of circular scrolling parts and bolt top, and makes the circular scrolling parts keep parallel with the movable brush sheet to the spring that bolt applies pretightning force.
As preferred version: an end of described spring is affixed with bolt, and the other end is affixed with groove one end away from the circular scrolling parts.
As preferred version: described circular scrolling parts, bolt and the spring optimum electric conducting material that has drawn from.
Compared with prior art, the beneficial effects of the utility model are:
Because moving brush contacts with annular resistor by contact apparatus, and be provided with circular scrolling parts, bolt and spring in the contact apparatus, the circular scrolling parts can rotate around bolt, therefore the friction of contact apparatus and annular resistor is rolling friction, has slowed down the wearing and tearing of contact apparatus to the annular resistor inner surface; In addition, the spring that is arranged in the groove is applied with indirect pretightning force by bolt to the circular scrolling parts, can guarantee that also contact apparatus contacts with the tight of annular resistor even the annular resistor inner surface is worn, therefore be good contact the created condition of contact apparatus with annular resistor.
Description of drawings
Fig. 1 has illustrated a kind of structure of prior art rotating potentiometer.
Fig. 2 has illustrated a structure embodiment of the present utility model.
Fig. 3 has illustrated the partial enlarged drawing of the utility model contact apparatus.
1. brush holder support; 2. movable brush sheet; 3. abration position; 4. circular scrolling parts; 5. bolt; 6. spring; 7. groove; 8. sliding contact; 9. hinge; 10. annular resistor; A. moving brush; B. fixed brush; H. contact apparatus.
Embodiment
With reference to the accompanying drawings embodiment of the present utility model is made a detailed explanation below:
With reference to the accompanying drawings 2, the utility model is by annular resistor 10, the fixed brush B of fixedlying connected with annular resistor 10 lower ends, and one end be positioned at annular resistor 10 centers, the moving brush A that the other end contacts with annular resistor 10 forms, and it is characterized in that: moving brush A contacts with annular resistor 10 by being arranged on its contact apparatus H away from an end at annular resistor 10 centers.Described circular scrolling parts 4, bolt 5 and spring 6 available copper are made.
Do briefly bright below in conjunction with Fig. 2 and Fig. 3 to operation principle of the present utility model:
As contact apparatus H when abration position does not contact with ring resistance device 10 inner surfaces, 6 pairs of bolts 5 of the spring that compresses are executed certain pretightning force, make circular scrolling parts 4 closely contact with ring resistance device 10 in the time of 5 rollings of bolt, realize easy motion; When contact apparatus H rotates on the ring resistance device 10 abration position 3, circular scrolling parts 4 produce the trend that breaks away from ring resistance device 10 inner surfaces, but impelling circular scrolling parts 4 to move forward to ring resistance device 10 inner surfaces by the spring 6 that bolt 5 applies pretightning force indirectly contacts, spring 6 elongations this moment (contact apparatus H moves towards the direction that deviates from ring resistance device 10 centers), thereby contact apparatus H is closely contacted with ring resistance device 10, realize easy motion; When contact apparatus H was moved to not abration position by abration position 3 after, contact apparatus H got back to original state, kept steady contact the with ring resistance device 10 inner surfaces.
Claims (5)
1. improved rotary current potential meter, by annular resistor (10), the fixed brush (B) of fixedlying connected with annular resistor (10) lower end, and one end be positioned at annular resistor (10) center, the moving brush (A) that the other end contacts with annular resistor (10) is formed, and it is characterized in that: moving brush (A) is to contact with annular resistor (10) by being arranged on its contact apparatus (H) away from an end at annular resistor (10) center.
2. a kind of improved rotary current potential meter as claimed in claim 1, it is characterized in that: described contact apparatus (H) is by the circular scrolling parts (4) that are positioned at movable brush sheet (2) bottom, connect the bolt (5) of circular scrolling parts (4) and movable brush sheet (2), and spring (6) composition that is positioned at groove (7).
3. a kind of improved rotary current potential meter as claimed in claim 2, it is characterized in that: described bolt (5) is the nut by the centre bore of circular scrolling parts (4) and bolt (5) top, and makes circular scrolling parts (4) keep parallel with movable brush sheet (2) to the spring (6) that bolt (5) applies pretightning force.
4. as claim 2 or 3 described a kind of improved rotary current potential meters, it is characterized in that: an end of described spring (6) is affixed with bolt (5), and the other end is affixed with groove (7) one ends away from circular scrolling parts (4).
5. as claim 2 or 3 described a kind of improved rotary current potential meters, it is characterized in that: described circular scrolling parts (4), bolt (5) and spring (6) the optimum electric conducting material that has drawn from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200522516U CN201956152U (en) | 2011-03-02 | 2011-03-02 | Improved rotary potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200522516U CN201956152U (en) | 2011-03-02 | 2011-03-02 | Improved rotary potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201956152U true CN201956152U (en) | 2011-08-31 |
Family
ID=44500256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200522516U Expired - Fee Related CN201956152U (en) | 2011-03-02 | 2011-03-02 | Improved rotary potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201956152U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489553A (en) * | 2013-07-08 | 2014-01-01 | 昆山福烨电子有限公司 | Potentiometer provided with roller |
| CN104008832A (en) * | 2014-06-09 | 2014-08-27 | 常州市零伍壹玖电子有限公司 | Resistor roller connecting type potentiometer |
-
2011
- 2011-03-02 CN CN2011200522516U patent/CN201956152U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489553A (en) * | 2013-07-08 | 2014-01-01 | 昆山福烨电子有限公司 | Potentiometer provided with roller |
| CN104008832A (en) * | 2014-06-09 | 2014-08-27 | 常州市零伍壹玖电子有限公司 | Resistor roller connecting type 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: 20110831 Termination date: 20120302 |