CN101763927B - Slide potentiometer and circuit board and potentiometer main body thereof - Google Patents
Slide potentiometer and circuit board and potentiometer main body thereof Download PDFInfo
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- CN101763927B CN101763927B CN200810241272A CN200810241272A CN101763927B CN 101763927 B CN101763927 B CN 101763927B CN 200810241272 A CN200810241272 A CN 200810241272A CN 200810241272 A CN200810241272 A CN 200810241272A CN 101763927 B CN101763927 B CN 101763927B
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- circuit board
- driving lever
- potentiometer
- slide potentiometer
- shell fragment
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Abstract
The invention discloses a slide potentiometer and a circuit board and a potentiometer main body thereof. The slide potentiometer comprises the potentiometer main body and the circuit board on which circuit elements can be installed, wherein the potentiometer main body comprises a crust, a deflector rod and a conduction shrapnel; the circuit board is provided with a first surface and a second surface. A resistive film is attached to the first surface; the crust is fixed on the first surface of the circuit board; the deflector rod can reciprocate linearly by coordinating with the crust; the conduction shrapnel is positioned on the deflector rod; and the conduction shrapnel is contacted with the resistive film. Since the conduction shrapnel of the slide potentiometer is contacted with the resistive film on the circuit board, existing substrates are eliminated, thus not only simplifying structure of the slide potentiometer, but also reducing the thickness of the slide potentiometer.
Description
Technical field
The invention relates to a kind of slide potentiometer.
Background technology
Along with the thickness and the volume of Medical Devices are more and more littler, to the thickness of the slide potentiometer that uses on the Medical Devices and on equipment, take up room require also increasingly high.At present; The slide potentiometer of Medical Devices 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 generally is on the basis of the slide potentiometer of no meta, to have increased the centre position, and when driving lever toggled it to the centre position, hand can be felt and can sound simultaneously.But existing slide potentiometer generally has following shortcoming: 1) complex structure, and thickness is thicker, and occupation space is bigger on Medical Devices.2) turning part is exposed to the external world, dustproof weak effect.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiency of prior art, and a kind of simple in structure, slide potentiometer and circuit 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 comprises the potentiometer main body and the circuit board of circuit element can be installed that the potentiometer main body comprises shell, driving lever and conducting shell fragment; Circuit board has first surface and second surface; First surface is attached with resistive film, and shell is fixed on the first surface of circuit board, but driving lever and shell are slidingly matched and straight reciprocating motion; The conducting shell fragment is positioned on the driving lever, and this conducting shell fragment and resistive film electrically contact.
A kind of circuit board of slide potentiometer has first surface and second surface, and said first surface is attached with resistive film.
A kind of potentiometer main body of slide potentiometer; Comprise be used for fixing the shell on the circuit board first surface, driving lever and be used for circuit board on the conducting shell fragment that electrically contacts of resistive film; But driving lever and shell are slidingly matched and straight reciprocating motion, and the conducting shell fragment is positioned on the driving lever.
Description of drawings
Fig. 1 be slide potentiometer first embodiment of the present invention overlook the visual angle stereogram;
Fig. 2 is the stereogram of looking up the visual angle of first embodiment;
Fig. 3 and Fig. 4 are respectively the structural representations at two visual angles after the first embodiment potentiometer main body and circuit board decompose;
Fig. 5 and Fig. 6 are respectively the three-dimensional exploded views at two visual angles of the potentiometer main body of first embodiment;
Fig. 7 is first embodiment generalized section in the vertical;
Fig. 8 is first embodiment generalized section in the horizontal;
Fig. 9 is the structural representation of the present invention's second embodiment;
Figure 10 is the structural representation of the present invention's the 5th embodiment.
Embodiment
To shown in Figure 8, the first embodiment slide potentiometer comprises circuit board 10 and potentiometer main body 100 like Fig. 1.Circuit board 10 is used to install potentiometer main body 100 and other circuit element; It has first surface 101 and second surface 102; Run through first surface 101 up and down and be formed with at least one open slot 15 with second surface 102; The both sides of each open slot 15 are equipped with resistive film 11, and resistive film 11 is attached on the first surface 101.Circuit board 10 also has at least one welding hole 12 and at least one screw hole 14 that runs through first and second surface 101,102, and welding hole 12 is used to realize the positioning and fixing of potentiometer main body 100, and screw hole 14 is used to realize installing and fixing of entire circuit plate 10.
Potentiometer main body 100 comprises shell, driving lever 20 and conducting shell fragment 50.Shell comprises the base 30 and loam cake 40 that matches.Base 30 is by plastic body and metallic object 30a integrated injection molding; Base 30 comprises base plate 301 and the side plate 302 of vertically extending cross section for annular that make progress from these base plate 301 edges; The inner surface of this base plate 301 is provided with two glide paths 36 and the ball orbit between two glide paths 36 303; Ball orbit 303 is provided with meta hole 32, and the inner surface of this base plate 301 also is provided with base fool proof hole 33, and this base fool proof hole 33 is that metallic object 30a is not anti-by dress when guaranteeing plastic body and metallic object 30a injection moulding.Side plate 302 is provided with at least one welding pin 31, the welding hole 12 corresponding couplings of welding pin 31 and circuit board 10.Side plate 302 has the composition surface 304 of fitting with loam cake 40, and this composition surface 304 is the plane, and composition surface 304 convexes with and is used to locate at least one first reference column 35 of loam cake 40 and is used to prevent that loam cake 40 from being adorned one first anti-fool proof post 34.Loam cake 40 is that the cross section is the frame body of annular, loam cake 40 have pin screens 45 that the welding pin 31 that supplies base 30 passes, with first location hole 41 of first reference column, 35 couplings of base 30 and with the first fool proof hole 44 of the first fool proof post, 34 couplings of base 30.Loam cake 40 is provided with two sliding ways 43 towards the surface of base 30, and loam cake 40 is provided with at least one second reference column 42 towards the surface of circuit board 10, and circuit board 10 is provided with second location hole 13 with second reference column, 42 couplings.Sliding way 43 can be to be sprayed on the corresponding surface with glide path 36, also can be to stick on the corresponding surface, or is fixed on the corresponding surface through alternate manner; Certainly, sliding way 43 also can be the part on corresponding surface with glide path 36.The quantity and the position of sliding way 43 and glide path 36 can be according to Demand Design.The cross section of side plate and loam cake can be just annular, oval or other can cross the shape that supplies the cavity that driving lever slides.Base can improve the intensity of base, and be convenient to the moulding welding pin through by plastic body and metallic object integrated injection molding.
Conducting shell fragment 50 comprises lamellar body 54 and two groups of elasticity feelers 52 fixing with this lamellar body 54; Lamellar body 54 is provided with the 3rd location hole 51 with the 3rd reference column 21 coupling of driving lever pedestal 207; Two groups of elasticity feeler 52 respectively corresponding two resistive films 11, every group of elasticity feeler 52 formed by at least one elasticity feeler, and each elasticity feeler is all to circuit board 10 direction diagonally extendings; The end of each elasticity feeler all has contact 53, this contact 53 and corresponding resistive film 11 contacts.
The assembling process of slide potentiometer is following: at first assemble potentiometer main body 100; Aim at the 3rd location hole 51 of conducting shell fragment 50 the 3rd reference column 21 of driving lever pedestal 207; Make conducting shell fragment 50 be pressed in the upper surface 208 of pedestal; Melt the 3rd reference column 21 with flatiron, make conducting shell fragment 50 be fixed on the upper surface 208 of pedestal 207; Then on the ball slideway 303 of outer casing base 30, be coated with a little lubricating oil; Purpose is to make ball 70 slips smooth and easy; Make feel softer; Be placed on base 30 central authorities to the driving lever 20 of loading onto conducting shell fragment 50, elastomer 60 and ball 70 then, the lower slider face 23 of driving lever pedestal 207 is attached on the glide path 36 of base 30, and the first fool proof post 34 of a side that will guarantee to have on the driving lever pedestal 207 the 3rd reference column 21 on the base 30; Then, first reference column 35 first location hole, the 41 aligning bases 30 of loam cake 40 covers loam cake 40, guarantees that through first fool proof hole 44 of loam cake 40 and the first fool proof post 34 of base 30 loam cake 40 is anti-by dress, assembles the potentiometer main body like this; At last; Second location hole 13 on second reference column, the 42 alignment circuit plates 10 of potentiometer main body 100; The welding pin 31 of adjustment base 30 makes the welding hole 12 on the welding pin 31 alignment circuit plates 10, firmly potentiometer main body 100 and circuit board 10 is compressed; The part and the circuit board 10 that stretch out welding pin 31 welding hole 12 weld together, and realize the fixing of potentiometer main body 100 and circuit board 10.
After slide potentiometer assembles; The last sliding surface 22 of driving lever pedestal 207 is attached on the sliding way 43 of outer casing upper cover 40; The lower slider face 23 of driving lever pedestal 207 is attached on the glide path 36 of outer casing base 30, and elastomer 60 is pressed in ball 70 on the ball orbit 303 of outer casing base 30; Conducting shell fragment 50 is between the first surface 101 of pedestal upper surface 208 and circuit board; The lamellar body 54 of conducting shell fragment 50 is fixed on the upper surface 208 of pedestal 207; The bar portion 206 of driving lever is between two groups of elasticity feelers 52, and two groups of elasticity feelers 52 contact with two resistive films 11 respectively; The base 30 of shell is fixing with circuit board 10 welding through welding pin 31, and the loam cake 40 of shell is positioned at the composition surface 304 of base 30, and loam cake 40 is pressed on the first surface 101 of circuit board 10 by base 30.Form the host cavity 305 of sealing between the first surface 101 of shell and circuit board 10; Host cavity 305 communicates with open slot 15; The second surface 102 of circuit board 10 is upwards stretched out on the top of bar portion 206, and the middle part of bar portion 206 places open slot 15, and the bottom of bar portion 206 is stretched out the first surface 101 of circuit board 10 downwards; The bottom of bar portion 206 and pedestal 207 are fixing, and the bottom of this bar portion, pedestal 207, conducting shell fragment 50 and resistive film 11 all are arranged in host cavity 305.When stirring driving lever 20, can on the resistive film 11 of circuit board 10, slide, realize the adjusting of resistance value with the elasticity feeler 52 of conducting shell fragment 50.
In first embodiment; Shell comprises the base 30 and the loam cake 40 of cross section for annular that cooperatively interacts; Base 30 comprises base plate 301 and side plate 302; Side plate 302 is pressed on loam cake 40 on the first surface 101 of circuit board 10, and host cavity 305 is crossed by the first surface of this base plate, side plate, loam cake and circuit board; In the present invention's second embodiment (as shown in Figure 9); Shell also can only comprise base 400; Be that base 400 directly contacts with the first surface 501 of circuit board 500; At this moment the conducting shell fragment contacts conducting with carbon film 502 on the circuit board 500, be provided with on the circuit board sliding way 503 that cooperates with the last sliding surface of driving lever pedestal (also can be provided with on the base 400 with the driving lever pedestal on the sliding way that cooperates of sliding surface), host cavity is crossed by the first surface 501 of this base 400 and circuit board 500.
In first embodiment; The lower surface of driving lever pedestal is provided with containing hole 24, and elastomer 60 and ball 70 are housed in the containing hole 24, and elastomer 60 is pressed in ball 70 on the ball orbit 303 of shell; Ball orbit 303 is provided with the meta hole 32 that is positioned on ball 70 movement locus; When driving lever 20 was stirred, the meeting sounding had played the effect of reference position when driving ball 70 through meta hole 32; In the present invention's the 3rd embodiment, containing hole also can be arranged on the side of driving lever pedestal, the side that corresponding ball orbit and meta hole are arranged on shell; Containing hole, elastomer and ball perhaps are not set, and promptly slide potentiometer is the potentiometer of no meta.
In first embodiment, driving lever directly contacts with glide path with sliding way; In the present invention's the 4th embodiment, also can add shell fragment and pad in driving lever bottom, pad is contacted with slideway on the base, to driving lever certain force of strain is provided through shell fragment, make the driving lever soft good hand touch of sliding.On the circuit board one or more open slot can be set, the both sides of each open slot are provided with resistive film, and the corresponding potentiometer main body of each open slot, and the conducting shell fragment of each potentiometer main body contacts with corresponding resistive film.
Shown in figure 10; It is the 5th embodiment of the present invention; Comprise circuit board 600, welding pin 601, base 602, driving lever 603, conducting shell fragment (not shown), the main distinction of this execution mode and first embodiment is: comprise the potentiometer main body of base 602, driving lever 603, conducting shell fragment and the same side that resistive film all is positioned at circuit board 600.
For slide potentiometer, the circuit board that it comprises the potentiometer main body and circuit element can be installed, the potentiometer main body comprises shell, driving lever and conducting shell fragment; Circuit board has first surface and second surface; First surface is attached with resistive film, and shell is fixed on the first surface of circuit board, but driving lever and shell are slidingly matched and straight reciprocating motion; The conducting shell fragment is positioned on the driving lever, and this conducting shell fragment and resistive film electrically contact.Because the conducting shell fragment of slide potentiometer and the resistive film on the circuit board electrically contact, and do not need to be provided with in addition substrate, have not only simplified the structure of slide potentiometer, and have reduced the thickness of slide potentiometer.Resistive film can be a carbon film, also can replace with other resistive film, and this resistive film can directly contact with the conducting shell fragment on being positioned at driving lever, and sliding on resistive film through the conducting shell fragment changes the size of resistance value.First surface can be the surface that circuit board is used to install circuit element, and also second surface is the surface that is used to install circuit element.
The first surface of circuit board can be the surface that is used to install circuit element of circuit board; Make other circuit element of arranging on potentiometer main body, resistive film and the circuit board be positioned at the same side (shown in figure 10) of circuit board, practiced thrift the installing space of slide potentiometer greatly.
The first surface of circuit board can be the surface that is used to install circuit element of circuit board; Circuit board can have the open slot that runs through first surface and second surface up and down; Driving lever has the part that is positioned at open slot, stretches out the part of first surface and the part of upwards stretching out second surface downwards; The conducting shell fragment is positioned at the part of stretching out first surface of driving lever, and the part of stretching out first surface of this driving lever is slidingly matched with shell.Because the side that the part of operation is positioned at the circuit board second surface is stirred in the driving lever confession; And other part, resistive film and the circuit element of potentiometer main body all are positioned at a side of circuit board first surface, thereby can more effectively practice thrift the installing space of slide potentiometer.
Shell can cross the host cavity of sealing with the first surface of circuit board, and host cavity and open slot connect, and the part of stretching out first surface of resistive film, conducting shell fragment and driving lever all is positioned at this host cavity.Owing to comprise that the turning part of resistive film, conducting shell fragment and part driving lever is positioned at the host cavity of sealing, and the turning part places the below of circuit board, directly is not exposed to the external world, improved dustproof effect; Simultaneously, the turning part is positioned at circuit board first surface one side in the time of owing to work, and dust is difficult for falling into host cavity, thereby can better improve dustproof effect.
Shell can comprise base and the loam cake that cooperatively interacts, and between loam cake and the base positioner and anti-misoperation device can be set, thereby can accurately locate when loam cake is installed and can be anti-by dress.
Slide potentiometer of the present invention not only can be applied on the Medical Devices, also can be used on the occasion that other need change resistance value.
Above content is to engage concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (10)
1. slide potentiometer is characterized in that: comprise the potentiometer main body and the circuit board of circuit element can be installed, the potentiometer main body comprises shell, driving lever and conducting shell fragment; Circuit board has first surface and second surface; First surface is attached with resistive film, and shell is fixed on the first surface of circuit board, but driving lever and shell are slidingly matched and straight reciprocating motion; The conducting shell fragment is positioned on the driving lever, and this conducting shell fragment and resistive film electrically contact.
2. slide potentiometer according to claim 1; It is characterized in that: said circuit board has the open slot that runs through first surface and second surface up and down; Driving lever has the part that is positioned at open slot, stretches out the part of first surface and the part of upwards stretching out second surface downwards; The conducting shell fragment is positioned at the part of stretching out first surface of driving lever, and the part of stretching out first surface of this driving lever is slidingly matched with shell.
3. slide potentiometer according to claim 2; It is characterized in that: the first surface of said shell and circuit board crosses the host cavity of sealing; Host cavity and open slot connect, and the part of stretching out first surface of resistive film, conducting shell fragment and driving lever all is positioned at this host cavity.
4. slide potentiometer according to claim 3 is characterized in that: said driving lever comprises bar portion and has upper surface and the pedestal of lower surface that the middle part of bar portion is positioned at open slot; Second surface is upwards stretched out on the top of bar portion, and the bottom of bar portion is stretched out first surface downwards, and the bottom of this bar portion is fixed on the upper surface of pedestal; The conducting shell fragment is fixed on the upper surface of pedestal; The lower surface of pedestal has the lower slider face, and shell has glide path, and this lower slider face and glide path are slidingly matched.
5. slide potentiometer according to claim 4 is characterized in that: said conducting shell fragment has two groups of elasticity feelers, and bar portion is positioned between these two groups of elasticity feelers, and these two groups of elasticity feelers electrically contact with corresponding resistive film respectively.
6. slide potentiometer according to claim 4; It is characterized in that: the lower surface of said pedestal is provided with containing hole; Elastomer and ball are housed in the containing hole, and shell has ball orbit, and elastomer is pressed on this ball on the ball orbit; This ball orbit is provided with the meta hole, and this meta hole is positioned on the movement locus of ball.
7. slide potentiometer according to claim 4; It is characterized in that: said shell comprises that base and cross section are annular loam cake; Base comprise base plate and be located at base plate towards the cross section of circuit board one side the side plate for annular; Side plate and loam cake location also is pressed on the first surface of circuit board with loam cake, and host cavity is crossed by the first surface of this side plate, base plate, loam cake and circuit board.
8. slide potentiometer according to claim 1 is characterized in that: said potentiometer main body is positioned at the first surface of circuit board.
9. according to any described slide potentiometer among the claim 1-8, it is characterized in that: said first surface is the surface that circuit board is used to install circuit element.
10. according to any described slide potentiometer among the claim 1-8, it is characterized in that: said resistive film is a carbon film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810241272A CN101763927B (en) | 2008-12-17 | 2008-12-17 | Slide potentiometer and circuit board and potentiometer main body thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810241272A CN101763927B (en) | 2008-12-17 | 2008-12-17 | Slide potentiometer and circuit board and potentiometer main body thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101763927A CN101763927A (en) | 2010-06-30 |
| CN101763927B true CN101763927B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810241272A Active CN101763927B (en) | 2008-12-17 | 2008-12-17 | Slide potentiometer and circuit board and potentiometer main body thereof |
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| Country | Link |
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| CN (1) | CN101763927B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071237A (en) * | 2015-07-17 | 2015-11-18 | 苏州市龙源电力科技股份有限公司 | Dust-resistant power distribution cabinet |
| CN117055233A (en) * | 2023-10-13 | 2023-11-14 | 玩出梦想(上海)科技有限公司 | Pupil distance adjustable head-mounted display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4005381A (en) * | 1975-06-09 | 1977-01-25 | Dale Electronics, Inc. | Slide potentiometer |
| US5825279A (en) * | 1995-05-26 | 1998-10-20 | Matsushita Electric Industrial Co., Ltd. | Slide potentiometer |
| CN101060758A (en) * | 2006-04-21 | 2007-10-24 | 深圳迈瑞生物医疗电子股份有限公司 | Gain compensation slide potentiometers dustproof structure |
-
2008
- 2008-12-17 CN CN200810241272A patent/CN101763927B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4005381A (en) * | 1975-06-09 | 1977-01-25 | Dale Electronics, Inc. | Slide potentiometer |
| US5825279A (en) * | 1995-05-26 | 1998-10-20 | Matsushita Electric Industrial Co., Ltd. | Slide potentiometer |
| CN101060758A (en) * | 2006-04-21 | 2007-10-24 | 深圳迈瑞生物医疗电子股份有限公司 | Gain compensation slide potentiometers dustproof structure |
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| Publication number | Publication date |
|---|---|
| CN101763927A (en) | 2010-06-30 |
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Effective date of registration: 20180529 Address after: 518057 the 1-4 floor of MINDRAY building, science and technology south twelve Road, Nanshan District high tech Industrial Park, Shenzhen, Guangdong. Co-patentee after: SHENZHEN MINDRAY SCIENTIFIC Co.,Ltd. Patentee after: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS Co.,Ltd. Address before: 518057 MINDRAY science and technology south twelve road MINDRAY high tech Industrial Park, Shenzhen, Guangdong Patentee before: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS Co.,Ltd. |
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Application publication date: 20100630 Assignee: Shenzhen Mindray Animal Medical Technology Co.,Ltd. Assignor: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS Co.,Ltd. Contract record no.: X2022440020009 Denomination of invention: Sliding potentiometer and its circuit board and potentiometer body Granted publication date: 20120905 License type: Common License Record date: 20220804 |
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