CN201323104Y - Sliding potentiometer and PCB board and potentiometer main body thereof - Google Patents
Sliding potentiometer and PCB board and potentiometer main body thereof Download PDFInfo
- Publication number
- CN201323104Y CN201323104Y CNU2008202139216U CN200820213921U CN201323104Y CN 201323104 Y CN201323104 Y CN 201323104Y CN U2008202139216 U CNU2008202139216 U CN U2008202139216U CN 200820213921 U CN200820213921 U CN 200820213921U CN 201323104 Y CN201323104 Y CN 201323104Y
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- CN
- China
- Prior art keywords
- pcb board
- driving lever
- potentiometer
- shell fragment
- shell
- 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 - Lifetime
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Abstract
The utility model discloses a sliding potentiometer and a PCB board and a potentiometer main body thereof. The sliding potentiometer comprises a potentiometer main body and a PCB board on which a circuit element can be installed. The PCB board has an installing surface, and the installing surface is attached with an electric resistance film. The potentiometer main body comprises a casing, a shift lever and a ducting spring plate. The casing is fixed on the installing surface of the PCB board. The shift lever and the casing form a moving pair. The ducting spring plate is positioned on the shift lever and is directly contacted with the electric resistance film. The ducting spring plate of the sliding potentiometer is directly contacted with the electric resistance film on the PCB board, thus the basal plate can be omitted, not only simplifying the structure of the sliding potentiometer, but also decreasing the thickness of the sliding potentiometer.
Description
Technical field
The utility model is about a kind of slide potentiometer.
Background technology
Slide potentiometer generally has two kinds, be respectively the slide potentiometer and the slide potentiometer that meta is arranged of no meta, the slide potentiometer that meta is arranged is to increase the centre position on the basis of the slide potentiometer of no meta, when driving lever pushes the centre position, hand can feel and can sound simultaneously that these two kinds of slide potentiometers all are that integral body is welded on work on the pcb board by pin.As shown in Figure 1, slide potentiometer 200 and pcb board 300 weld together, slide potentiometer 200 comprises driving lever 201, shell 202 and substrate 203, the conducting shell fragment is equipped with in the bottom of driving lever 201, the conducting shell fragment contacts with carbon film 205 on the substrate 203, shell 202 links together by welding pin 204 and pcb board 300, and during use, the conducting shell fragment slidably reciprocates on the carbon film 205 of substrate 203 and changes the size of resistance value.But this slide potentiometer has following shortcoming: 1) owing to be provided with substrate, not only make the total complexity, and the thickness of whole potentiometer is increased; 2) turning part of slide potentiometer (conducting shell fragment and the substrate that is provided with carbon film) all do not sealed dustproof weak effect by shell.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiencies in the prior art, and a kind of simple in structure, slide potentiometer and pcb board and potentiometer main body that thickness is little are provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of slide potentiometer, comprise the potentiometer main body and the pcb board of circuit element can be installed, pcb board has installed surface, this installed surface is attached with resistive film, the potentiometer main body comprises shell, driving lever and conducting shell fragment, shell is fixed on the installed surface of this pcb board, and driving lever and shell form moving sets, and the conducting shell fragment is positioned on the driving lever and with resistive film and directly contacts.
Described shell comprises that it is the side plate of annular that top board reaches from the extended cross section of this top board, the inner surface of this top board and the inner surface of side plate cross host cavity, this top board is provided with the open slot that connects with host cavity, the top of this driving lever protrudes upward this open slot, and the bottom of this driving lever, conducting shell fragment and resistive film are arranged in this host cavity.Described side plate has the jointing end face for the plane, and this jointing end face is close to the installed surface of pcb board.
Described driving lever comprises bar portion and is fixed on the pedestal of bar portion bottom, the top of this bar portion protrudes upward open slot, the bottom and the pedestal of this bar portion place host cavity, conducting shell fragment and pedestal are fixed, the installed surface of pcb board is provided with glide path, pedestal has the lower slider face, and lower slider face and glide path are slidingly matched.Be with shell fragment and pad in the described bar portion, the inner surface of top board has sliding way, and shell fragment is pressed in pad on this sliding way.
The side of described pedestal is provided with spring eye, and spring and ball are housed in the spring eye, and this spring is pressed on the inner surface of side plate with ball, and the shell side plate is provided with the meta hole.Described resistive film is a carbon film.Described installed surface is the surface that pcb board is installed circuit element.
A kind of pcb board of slide potentiometer has installed surface, and described installed surface is attached with resistive film.
A kind of potentiometer main body comprises that shell, driving lever reach and the conducting shell fragment that is used for directly contacting with the resistive film of pcb board, and shell and driving lever form moving sets, and the conducting shell fragment is positioned on the driving lever.
The invention has the beneficial effects as follows 1) the conducting shell fragment of slide potentiometer directly contacts with the resistive film on the pcb board, saved substrate, and not only simplify the structure of slide potentiometer, and reduced the thickness of slide potentiometer.2) shell has the host cavity that is crossed by top board and side plate, the turning part that includes resistive film, conducting shell fragment and part driving lever places host cavity, the jointing end face of side plate is close to the installed surface of pcb board, thus make that shell can the complete closed turning part around, improved dustproof effect.3) when the installed surface of pcb board when circuit element surperficial is installed, make potentiometer main body, resistive film and circuit element be positioned at the same side of pcb board, can reduce the integral thickness of slide potentiometer.
Description of drawings
Fig. 1 is the structural representation after existing slide potentiometer and the pcb board assembling;
Fig. 2 is the stereogram of present embodiment slide potentiometer;
Fig. 3 is the three-dimensional exploded view of the depression angle of present embodiment slide potentiometer;
Fig. 4 is the three-dimensional exploded view of looking up angle of present embodiment slide potentiometer.
Embodiment
To shown in Figure 4, the present embodiment slide potentiometer comprises pcb board and the potentiometer main body that circuit element can be installed as Fig. 2.Pcb board 10 has installed surface 14, and this installed surface 14 is for installing the surface of circuit element, and installed surface 14 is attached with carbon film 11, and the both sides of carbon film 11 are provided with two glide paths 12, and the outside of glide path 12 is provided with welding hole 13.Glide path 12 can be to be painted on the installed surface, also can be to be bonded on the installed surface.The glide path 12 of pcb board 10 can protrude from installed surface 14, also can be recessed into this installed surface 14.The potentiometer main body comprises shell 30, driving lever 20, conducting shell fragment 40, shell fragment 50 and pad 60.Shell 30 comprises top board 301 and the square annular side plate 302 of extending from top board 301 edge-perpendicular downwards, the inner surface of the inner surface of this top board 301 and side plate 302 crosses host cavity 303, this top board 301 has the strip gab groove 33 of up/down perforation, and this open slot 33 communicates with host cavity 303.Side plate 302 has the jointing end face 304 that the installed surface 14 with pcb board 10 fits tightly, and jointing end face 304 is the plane, and this jointing end face 304 extends a plurality of welding pin 31 downwards certainly, and welding pin 31 is corresponding one by one with the welding hole 13 of pcb board 10.Side plate 302 also has meta hole 32, and this meta hole 32 communicates with host cavity 303.
Conducting shell fragment 40 has location hole 41, and location hole 41 is corresponding one by one with the reference column 24 of driving lever 20, and the cooperation by location hole 41 and reference column 24 is positioned at conducting shell fragment 40 on the driving lever 20, and conducting shell fragment 40 and driving lever 20 can be moved together.The head of conducting shell fragment 40 has contact 41, and this contact 41 directly contacts with carbon film 11 on the pcb board 10.
During assembling, the reference column 24 the location hole 41 aligning driving levers 20 of conducting shell fragment 40 compresses the back with ironing of flatiron reference column 24, and conducting shell fragment 40 and driving lever 20 are fixed with one; Then, respectively spring 70 and steel ball 80 are put in the spring eye 23 of driving lever 20 pedestals 206 sides; Then successively shell fragment 50 and pad 60 are enclosed within the bar portion 207 of driving lever 20, again driving lever 20 and shell 30 are fitted together, the bar portion 207 of driving lever 20 upwards passes the open slot 33 of shell 30, then the part that installs is aimed at the welding hole 13 on the pcb board 10 by the welding pin 31 of shell 30, firmly push down shell 30 and pcb board 10, welding pin 31 and pcb board 10 are welded together by welding tooling.After assembling, the bottom of shell fragment 50, pad 60, conducting shell fragment 40, carbon film 11, slideway 12 and driving lever 20 all places in the host cavity 303 fully, and the top of driving lever 20 protrudes upward open slot 33; Pad 60 is pressed on by shell fragment 50 on the sliding way 34 of sheath top plate 301, and the lower slider face 22 of driving lever 20 pedestals 206 is slidingly matched with the glide path 12 of pcb board 10; Spring 70 is pressed on the inner surface of shell side plate 302 with steel ball 80, and the meta hole 32 of shell side plate 302 is positioned on the movement locus of ball 80; The contact 41 of conducting shell fragment 40 is pressed on the carbon film 11 of pcb board 10 and realizes line conduction.When stirring driving lever 20, driving lever 20 slides on carbon film 11 with conducting shell fragment 40 and changes the size of resistance value.When driving lever was stirred, the meeting sounding had played the effect of reference position during the meta hole 32 of its drive ball 80 process shells 30.
For slide potentiometer, the shell of potentiometer main body is fixed on the pcb board, but driving lever and shell form moving sets and the opposite shell straight reciprocating motion, the conducting shell fragment is positioned on the driving lever, when stirring driving lever, can on the carbon film of pcb board, slide, realize the adjusting of resistance value with the conducting shell fragment.The potentiometer main body can be provided with shell fragment and pad, and shell fragment and pad are enclosed within the bar portion of driving lever, and utilizes the elastic force of shell fragment, pad is pressed on the sliding way of shell; Certainly, also shell fragment and pad can be set, and the guide vane end stop of driving lever or other position with last sliding surface and the sliding way of shell are slidingly matched.The side of driving lever pedestal can be provided with spring eye, and spring and ball are housed in the spring eye, and promptly slide potentiometer is the potentiometer that meta is arranged; Certainly, also can not establish spring, ball and spring eye, promptly slide potentiometer is the potentiometer of no meta.Potentiometer main body and carbon film can be installed in the surface that is used to install circuit element of pcb board, thereby make potentiometer main body, carbon film and circuit element be positioned at the same side of pcb board, have effectively reduced the whole height of slide potentiometer; Certainly, also potentiometer main body and carbon film can be installed in a side of pcb board, and circuit element be installed in the opposite side of pcb board.Shell can have the host cavity that is surrounded by top board and side plate, the jointing end face of shell side plate is the plane and is close on the installed surface of pcb board, thereby make the turning part that comprises conducting shell fragment, carbon film and part driving lever around all be closed, improved dustproof effect; Certainly, shell also can not exclusively seal this turning part.The carbon film of slide potentiometer also can replace with other resistive film, and this resistive film can contact with the conducting shell fragment of driving lever, and sliding on resistive film by the conducting shell fragment changes the size of resistance value.Slide potentiometer not only can be applied on the Medical Devices, also can be used on the occasion that other need change resistance value.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. slide potentiometer, comprise the potentiometer main body and the pcb board of circuit element can be installed, it is characterized in that: pcb board has installed surface, this installed surface is attached with resistive film, the potentiometer main body comprises shell, driving lever and conducting shell fragment, shell is fixed on the installed surface of this pcb board, and driving lever and shell form moving sets, and the conducting shell fragment is positioned on the driving lever and with resistive film and directly contacts.
2. slide potentiometer according to claim 1, it is characterized in that: described shell comprises that it is the side plate of annular that top board reaches from the extended cross section of this top board, the inner surface of this top board and the inner surface of side plate cross host cavity, this top board is provided with the open slot that connects with host cavity, the top of this driving lever protrudes upward this open slot, and the bottom of this driving lever, conducting shell fragment and resistive film are arranged in this host cavity.
3. slide potentiometer according to claim 2 is characterized in that: described side plate has the jointing end face for the plane, and this jointing end face is close to the installed surface of pcb board.
4. slide potentiometer according to claim 2, it is characterized in that: described driving lever comprises bar portion and is fixed on the pedestal of bar portion bottom, the top of this bar portion protrudes upward open slot, the bottom and the pedestal of this bar portion place host cavity, conducting shell fragment and pedestal are fixed, the installed surface of pcb board is provided with glide path, and pedestal has the lower slider face, and lower slider face and glide path are slidingly matched.
5. slide potentiometer according to claim 4 is characterized in that: be with shell fragment and pad in the described bar portion, the inner surface of top board has sliding way, and shell fragment is pressed in pad on this sliding way.
6. slide potentiometer according to claim 5 is characterized in that: the side of described pedestal is provided with spring eye, and spring and ball are housed in the spring eye, and this spring is pressed on the inner surface of side plate with ball, and the shell side plate is provided with the meta hole.
7. according to any described slide potentiometer among the claim 1-6, it is characterized in that: described resistive film is a carbon film.
8. according to any described slide potentiometer among the claim 1-6, it is characterized in that: described installed surface is the surface that pcb board is installed circuit element.
9. the pcb board of a slide potentiometer has installed surface, it is characterized in that: described installed surface is attached with resistive film.
10. potentiometer main body that cooperates with the described pcb board of claim 9 is characterized in that: comprise shell, driving lever and with the conducting shell fragment that is used for directly contacting with the resistive film of pcb board, shell and driving lever formation moving sets, the conducting shell fragment is positioned on the driving lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202139216U CN201323104Y (en) | 2008-11-26 | 2008-11-26 | Sliding potentiometer and PCB board and potentiometer main body thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202139216U CN201323104Y (en) | 2008-11-26 | 2008-11-26 | Sliding potentiometer and PCB board and potentiometer main body thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201323104Y true CN201323104Y (en) | 2009-10-07 |
Family
ID=41160480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202139216U Expired - Lifetime CN201323104Y (en) | 2008-11-26 | 2008-11-26 | Sliding potentiometer and PCB board and potentiometer main body thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201323104Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097191A (en) * | 2009-12-10 | 2011-06-15 | 乐金电子(天津)电器有限公司 | Slide rheostat with dustproof structure |
| CN108666060A (en) * | 2018-04-26 | 2018-10-16 | 东莞福哥电子有限公司 | A kind of stable type Slidable potentiometer |
-
2008
- 2008-11-26 CN CNU2008202139216U patent/CN201323104Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097191A (en) * | 2009-12-10 | 2011-06-15 | 乐金电子(天津)电器有限公司 | Slide rheostat with dustproof structure |
| CN102097191B (en) * | 2009-12-10 | 2016-01-20 | 乐金电子(天津)电器有限公司 | With the slide rheostat of dustproof construction |
| CN108666060A (en) * | 2018-04-26 | 2018-10-16 | 东莞福哥电子有限公司 | A kind of stable type Slidable potentiometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091007 |
|
| CX01 | Expiry of patent term |