CN202678013U - Potentiometer - Google Patents
Potentiometer Download PDFInfo
- Publication number
- CN202678013U CN202678013U CN 201220263347 CN201220263347U CN202678013U CN 202678013 U CN202678013 U CN 202678013U CN 201220263347 CN201220263347 CN 201220263347 CN 201220263347 U CN201220263347 U CN 201220263347U CN 202678013 U CN202678013 U CN 202678013U
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- Prior art keywords
- slide block
- potentiometer
- metal derby
- slider
- fixed lever
- 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.)
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Abstract
The utility model discloses a potentiometer, which belongs to the basic electrical components, and is mainly installed in a circuit for adjusting the size of the voltage value. The potentiometer comprises a resistor body, wherein the resistor body consists of a first metal block and a second piece of metal, which are in close contact with each other; the first metal block consists of a first slider and a second slider, which are matched with the second metal block in a sliding manner; and the sliding directions of the first slider and the second slider are arranged in parallel. According to the utility model, the potentiometer can change the size of the current by adjusting the contact areas of the first slider and the second metal block as well as the second slider and the second metal block, so as to change the voltage value. The potentiometer is in simple structure, allows the pass of larger current, and can prolong the service life.
Description
Technical field
The utility model relates to a kind of adjustable electronic component, relates in particular to a kind of potentiometer.
Background technology
Potentiometer is a kind of of variable resistance, normally is comprised of resistive element and rotation or sliding system, and is namely mobile at resistive element by a moving contact, obtains the part Voltage-output.The resistive element of potentiometer has two stiff ends, by manual adjustments rotating shaft or sliding handle, changes the position of moving contact on resistive element, has then changed the resistance value between moving contact and any stiff end, thereby has changed the size of voltage and electric current.
As shown in Figure 1, a kind of common carbon-film potentiometer, comprise circular case 100, the resistive element 101 that is fixed on case 100 upper semi-circle annulars and intermediate contact 104, the resistive element two ends are respectively equipped with contact 102,103, the stiff end of intermediate contact is provided with cursor 105, and the movable end of cursor 1 05 contacts with resistive element 101.When cursor 105 turned to contact 102, the distance of contact 102 and cursor 105 was the shortest, got involved resistance minimum, and the distance of contact 103 and cursor 105 is the longest, and resistance value is maximum.The electric current that passes through between with the situation lower contact 102 of voltage and cursor 105 is large, and the electric current that passes through between contact 103 and the cursor 105 is little.
There is following defective in above-mentioned potentiometer:
(1) because regular use cursor causes cursor and resistive element loose contact, thereby so that the potentiometer damage;
(2) under normal conditions, cursor is pushed down resistive element, and often the regulating rotary swing arm can damage resistive element;
(3) potentiometer access electric current less (allowing to pass through electric current).
China Patent Publication No. CN87103368A, in open day on November 30th, 1988, the name of innovation and creation is called liquid potentiometer, and this application case discloses a kind of potentiometer made from liquid, change the structure that rubs between traditional metal and the metal, thereby prolonged useful life.Its weak point is that the access electric current is less.
China Patent Publication No. CN1086627A, open day on May 11st, 1994, the name of innovation and creation is called durable potentiometer, and this application case discloses a kind of novel durable potentiometer, the medium of its technical characterictic for adopting mercury metal to contact with carbon film as the potentiometer target.Rotate inner box and be integrated with fixing outer box, mercury is injected inner box shut, mercury is contacted with annular electrode and the carbon film of centre in the bottom of middle ring, fundamentally solved existing potentiometer carbon film and held flimsy problem.Its weak point is that the access electric current is less.
China Patent Publication No. CN101105994, open day on January 161st, 2008, the name of innovation and creation is called non-contact point potentiometer, this application case discloses a kind of non-contact point potentiometer, comprise the conducting objects, photo resistance and the resistance that link to each other and arrange side by side successively, wherein, after described photo resistance receives the sign light beam irradiates, in the position of this light beam irradiates with described conducting objects and described resistance conducting.Therefore the present invention utilizes photo resistance with the non-contact point potentiometer of conductive metal sheet and resistor disc conducting, can realize contactless friction, frequent variations resistance, and do not worry meeting demarcation potential device.Its weak point is that the access electric current is less.
The utility model content
The utility model discloses a kind of potentiometer, solved the less problem of existing potentiometer access electric current.
A kind of potentiometer, comprise resistive element, described resistive element comprises the first metal derby and the second metal derby of mutually being close to, described the first metal derby is combined by the first slide block and the second slide block that are slidingly matched with the second metal derby, and the glide direction of described the first slide block and the second slide block is for be arrangeding in parallel.
Can adopt multiple slide mechanism to cooperate between slide block and the second metal derby, on the second metal derby as described linear chute is arranged, the first slide block and the second slide block respectively the first fixed lever by passing chute and the second fixed lever and the second metal derby are close to, this kind sliding type is simple in structure, is convenient to processing.
Described the first fixed lever runs through the first slide block, described the second fixed lever runs through the second slide block, the first fixed lever and the second fixed lever two ends are provided with stop nut, by stop nut can adjusting slider and the second metal derby between force of sliding friction, avoid loose contact between the two.
Described chute deviates from the stepped hole structure of a side for cooperating with described stop nut of the first metal derby, and stop nut is hidden in the stepped hole, can avoid nut owing to External Force Acting becomes flexible.
Described the first metal derby and the second metal derby are cuboid, and the face shape of mutually being close to is identical, and structure is more compact, convenient encapsulation.
Described the first slide block interfaces identical with the second slide block size shape and these two slide blocks become 30 ~ 60 ° angle with their glide direction; Curent change is more mild in the slide block moving process, easy operating.
Described the first slide block and the second slide block are slidingly matched by track structure and described the second metal derby, because slide rail and slideway all are arranged on slide block or the second metal derby easy accessibility.
After adopting above structure, compared with prior art, the beneficial effect of the utility model potentiometer is:
(1) this potentiometer only is comprised of three blocks of metal derbies, and is simple in structure;
(2) the utility model potentiometer utilizes the conducting of the contact realization electric current between metal derby, and is large by electric current;
(3) fit tightly between slide block and the second metal derby, contact is good, and not easy to wear after long-term the use, high life.
Description of drawings
Fig. 1 is the structural representation of existing common carbon-film potentiometer.
Fig. 2 is the structural representation of embodiment 1 potentiometer.
Fig. 3 is the structural representation of the second metal derby in the potentiometer shown in Figure 2.
Fig. 4 is the second metal derby A-A profile shown in 3.
Fig. 5 is the structural representation of embodiment 2 potentiometers.
Fig. 6 is the sectional drawing of potentiometer shown in Figure 5.
Embodiment
Embodiment 1
Shown in Fig. 2 ~ 4, a kind of potentiometer comprises the resistive element that is made of the first metal derby 1 of mutually being close to and the second metal derby 2, and the first metal derby 1 and the second metal derby 2 are cuboid, specification is 100 * 50 * 20, the face size shape of mutually being close between them is identical, can make the resistive element compact appearance, is easy to encapsulation, metal derby is made of electric conducting material, select in the present embodiment copper, material is easy to get, and electric conductivity is good.
The first metal derby 1 is comprised of slide block 11 and slide block 12, and slide block 11 is identical with size with slide block 12 shapes, is roughly right-angled trapezium, and their size and shape also can be different certainly, and the purpose that so arranges is in order to make the two poles of the earth connect indifference.Be slidingly matched for being close between slide block and the second metal derby 2, glide direction is for being parallel to each other, and glide direction becomes 30 ° of angles with interface between slide block 11 and the slide block 12, and angle can be adjusted certainly, is generally 30 ~ 60 °.
As shown in Figure 2, linear chute 21 is arranged on the second metal derby, the side that chute 21 deviates from the first metal derby 1 is stepped hole structure 22, fixed lever 31,32 runs through the second metal derby 2 from chute 21 after passing respectively slide block 11,12, fixed lever 31,32 two ends are provided with the stop nut (not shown), thereby slide block and metal derby are close to fixing, and can be regulated frictional force between them.Fixed lever can be one-body molded with it near the stop nut of the second metal derby one end, and be hidden in the stepped hole structure 22, makes the resistive element compact overall structure.
Shown in Fig. 5 ~ 6, a kind of potentiometer comprises the resistive element that is made of the first metal derby 1 of mutually being close to and the second metal derby 2, and the first metal derby 1 and the second metal derby 2 are cuboid, specification is 100 * 50 * 20, and the face size shape of mutually being close between them is identical.The first metal derby 1 is comprised of slide block 11 and slide block 12, slide block 11 is identical with size with slide block 12 shapes, is roughly right-angled trapezium, and is slidingly matched for being close between the second metal derby 2, glide direction is for being parallel to each other, and glide direction becomes 30 ° of angles with interface between slide block 11 and the slide block 12.
As shown in Figure 6, the parallel direction of slide block 11 and slide block 12 is provided with slide rail, on the second metal derby 2 slideway is arranged, slide rail and slideway have consisted of the track structure 4 that fastens, wherein slide rail is embedded in the slideway of the second metal derby 2, purpose is can fit tightly in sliding process for the first metal derby 1 and the second metal derby 2, avoids loose contact between the two.
The operation principle of the utility model potentiometer is: at the second metal derby 2, slide block 11, slide block 12 three exits are set, by changing the contact area of slide block 11 and slide block 12 and the second metal derby 2, change size of current, thereby change the magnitude of voltage between two exits.
Claims (8)
1. potentiometer, comprise resistive element, it is characterized in that, described resistive element comprises the first metal derby (1) and the second metal derby (2) of mutually being close to, described the first metal derby (1) is combined by the first slide block (11) and the second slide block (12) that are slidingly matched with the second metal derby (2), and the glide direction of described the first slide block (11) and the second slide block (12) is for be arrangeding in parallel.
2. potentiometer as claimed in claim 1, it is characterized in that, linear chute (21) is arranged on described the second metal derby (2), and the first slide block (11) and the second slide block (12) are close to fixing by the first fixed lever (31) and the second fixed lever (32) that pass chute (21) with the second metal derby (2) respectively.
3. potentiometer as claimed in claim 2, it is characterized in that, described the first fixed lever (31) runs through the first slide block (11), and described the second fixed lever (32) runs through the second slide block (12), and the first fixed lever (31) and the second fixed lever (32) two ends are provided with stop nut.
4. potentiometer as claimed in claim 3 is characterized in that, described chute (21) deviates from the stepped hole structure (22) of a side for cooperating with described stop nut of the first metal derby (1).
5. potentiometer as claimed in claim 1 is characterized in that, described the first metal derby (1) and the second metal derby (2) are cuboid, and the face shape size of mutually being close to is identical.
6. potentiometer as claimed in claim 1 is characterized in that, described the first slide block (11) is identical with the second slide block (12) shape size.
7. potentiometer as claimed in claim 6 is characterized in that, the interface of described the first slide block (11) and the second slide block (12) becomes 30 ~ 60 ° angle with their glide direction.
8. potentiometer as claimed in claim 1 is characterized in that, described the first slide block (11) and the second slide block (12) are slidingly matched by track structure (4) and described the second metal derby (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263347 CN202678013U (en) | 2012-06-01 | 2012-06-01 | Potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263347 CN202678013U (en) | 2012-06-01 | 2012-06-01 | Potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202678013U true CN202678013U (en) | 2013-01-16 |
Family
ID=47498899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220263347 Expired - Fee Related CN202678013U (en) | 2012-06-01 | 2012-06-01 | Potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202678013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784587A (en) * | 2017-01-05 | 2017-05-31 | 南通鼎鑫电池有限公司 | A kind of lithium battery group |
| CN108592848A (en) * | 2018-03-14 | 2018-09-28 | 山东海超机械有限公司 | A kind of woodworking equipment plank angle detection device and its detection method |
-
2012
- 2012-06-01 CN CN 201220263347 patent/CN202678013U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784587A (en) * | 2017-01-05 | 2017-05-31 | 南通鼎鑫电池有限公司 | A kind of lithium battery group |
| CN108592848A (en) * | 2018-03-14 | 2018-09-28 | 山东海超机械有限公司 | A kind of woodworking equipment plank angle detection device and its detection method |
| CN108592848B (en) * | 2018-03-14 | 2024-01-26 | 山东海超机械有限公司 | Plank angle detection device for woodworking equipment and detection method thereof |
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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: 20130116 Termination date: 20170601 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |