CN205920845U - Linear sliding potentiometer - Google Patents
Linear sliding potentiometer Download PDFInfo
- Publication number
- CN205920845U CN205920845U CN201620791956.2U CN201620791956U CN205920845U CN 205920845 U CN205920845 U CN 205920845U CN 201620791956 U CN201620791956 U CN 201620791956U CN 205920845 U CN205920845 U CN 205920845U
- Authority
- CN
- China
- Prior art keywords
- cap
- blind hole
- linear sliding
- casing
- resistive element
- 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 a linear sliding potentiometer, including open -top's casing and the apron that covers the casing, be equipped with the spout on the apron, be equipped with in the spout and push away the handle, the lower extreme that pushes away the handle links to each other with spherical electric brush section, and the casing is inside to be equipped with the resistive element, is equipped with the arc wall that matches with electric brush section on the resistive element, the upper end that pushes away the handle with push away cap threaded connection, push away the cap including being equipped with internal screw thread metal cap, metal cap overcoat is equipped with the plastics cap, seted up the blind hole on the lateral wall of casing inside, the blind hole intussuseption is filled with the drier. The utility model discloses a linear sliding potentiometer, when the freshly ground damage was realized to resistance, the arc wall carried on spacingly all the time to electric brush section, the stability when keeping pushing away the handle and the accuracy of location. Pushing away the cap and adopting metal cap and plastics cap matched with structure, performance is good. Offered the blind hole on the lateral wall of casing inside, the drier of packing in the blind hole has fine humidity resistance, the normal use life -span of guaranteeing the potentiometre.
Description
Technical field
This utility model belongs to electronic technology field and in particular to a kind of linear sliding potentiometer.
Background technology
Potentiometer is a kind of adjustable electronic component, and it is rotated by a resistive element and one or sliding system forms.
Between two fixed contacts of resistive element during an additional voltage, contact is changed on resistive element by rotation or sliding system
Position, between movable contact and fixed contact just can get the voltage becoming certain relation with movable contact position.Potentiometer
Be commonly used as potentiometer, rheostat and current controller etc., be widely used in measuring instrument, facsimile machine, photocopier, printer with
And the industry such as sensor.
Potentiometer with sliding system typically passes through to promote push handle to change position on resistive element for the contact.Repeatedly adjust meeting
Make to produce between contact and resistive element to rub and resistive element is caused damage, simultaneously so that regulation afterwards is not accurate enough, exist
It is difficult to the technical problem positioning during adjusting.Current push handle is made of all using plastic material for reduces cost, wear-resistant
Damage poor-performing, if made using metal material, cost is again too high.
Potentiometer is installed in enterprising enforcement of various equipment and uses, and plays adjustment effect.When potentiometer use environment is moister
When, be easily accessible a small amount of dampness inside it, for a long time after easily cause the oxidation of getting rusty of potentiometer some metal parts internal, greatly
The big normal service life reducing potentiometer, thus increase use cost.
Utility model content
The purpose of this utility model is to solve the above problems, and provides a kind of linear sliding potentiometer.
For solving above-mentioned technical problem, the technical solution of the utility model is: a kind of linear sliding potentiometer, opens including top
The housing of mouth and the cover plate covering described housing, cover plate is provided with chute, is provided with push handle in chute, and push handle can be along the length of chute
Direction is moved；The lower end of push handle is connected with spherical brush portion, and enclosure interior is provided with resistive element, and resistive element is provided with and brush portion
The arcuate groove of coupling, brush portion is connected with arcuate groove sliding contact；The upper end of described push handle is connected with pushing away cap thread, pushes away cap and includes
If female metal cap, metal cap overcoat is provided with the plastic cap of cuboid, and the outer wall of plastic cap is provided with
Continuous toothed projections；Offer blind hole on the side wall of described enclosure interior, in blind hole, be filled with desiccant.
Preferably, the width of described plastic cap is more than trough width.
Preferably, described metal cap is bonding with plastic cap.
The beneficial effects of the utility model are: linear sliding potentiometer provided by the utility model, when resistive element occurs
During abrasion, arcuate groove all the time brush portion is carried out spacing, keep promote push handle when stability and positioning accuracy.Push away cap
The structure being matched with plastic cap using metal cap, serviceability is good, moderate cost.Offer on the side wall of enclosure interior
Blind hole, the desiccant of filling has good humidity resistance it is ensured that the normal service life of potentiometer in blind hole.
Brief description
Fig. 1 is the sectional view along chute for this utility model linear sliding potentiometer；
Fig. 2 is the sectional view of this utility model linear sliding potentiometer other direction；
Fig. 3 is the perspective view of this utility model push handle, limiting stand and brush portion；
Fig. 4 is the sectional view that this utility model pushes away cap；
Fig. 5 is the top view that this utility model pushes away cap.
Description of reference numerals: 1, housing；2nd, cover plate；3rd, chute；4th, push handle；5th, brush portion；6th, limiting stand；7th, resistive element；
8th, arcuate groove；9th, metal cap；10th, plastic cap；11st, sealing ring；12nd, desiccant.
Specific embodiment
With specific embodiment, this utility model is described further below in conjunction with the accompanying drawings:
As shown in Figures 1 to 5, a kind of linear sliding potentiometer of the present utility model, including housing 1 and cover plate 2, housing 1 is
Cuboid, its open top forms a cavity, and the bottom of cavity is equipped with resistive element 7, and cover plate 2 lid is encapsulated on housing 1, cover plate
2 chutes 3 being provided with rectangle, chute 3 is relative with the open top of housing 1.It is provided with the push handle 4 of cylinder, push handle 4 in chute 3
Can move along the length direction of chute 3；The lower end of push handle 4 is connected with spherical brush portion 5, and resistive element 7 is provided with and brush portion 5
The arcuate groove 8 of coupling, brush portion 5 is connected with arcuate groove 8 sliding contact.During use, resistive element 7 occurs abrasion, but arc
Groove 8 all the time brush portion 5 is carried out spacing, keep promote push handle when stability and positioning accuracy.
As shown in Fig. 2 be convexly equipped with push handle 4 annular limiting stand 6, limiting stand 6 with diameter greater than chute 3 width, spacing
The upper surface of platform 6 is abutted with cover plate 2 lower surface.Limiting stand 6 is used for limiting push handle 4 and brush portion 5 entirety in the position of vertical direction
Move, prevent swing in chute 3 for the push handle it is ensured that the overall stability of potentiometer simultaneously.
As shown in figure 4, the upper end of push handle 4 is connected with pushing away cap thread, pushes away cap and include setting female metal cap 9, gold
Belong to the plastic cap 10 being arranged with cuboid outside cap 9, the width of plastic cap 10 is more than chute 3 width.Metal cap 9 with
Plastic cap 10 bonding.Push away the structure that cap is matched with plastic cap using metal cap, serviceability is good, moderate cost.As
Shown in Fig. 5, the outer wall of plastic cap 10 is provided with continuous toothed projections, and toothed projections make staff push away during cap not
Easily skid.
Noctilucent coating is had on the outer surface of metal cap 9, plastic cap 10 is made up of transparent plastic.Noctilucent coating has
Noctilucent function, being easy to people's night uses, and noctilucent coating is difficult for drop-off.
Cover plate 2 lower end is provided with groove with the contact position of housing 1, is provided with sealing ring 11 in groove.Housing 1 and cover plate 2 lead to
After crossing mode connects for screw, sealing ring 11 can prevent dust, steam etc. from entering inside potentiometer from side.
Offer blind hole on side wall within housing 1, in blind hole, be filled with desiccant 12.Desiccant has good protection against the tide
Performance is it is ensured that the normal service life of potentiometer.The quantity of blind hole and desiccant can need setting according to actually used.
Those of ordinary skill in the art will be appreciated that, embodiment described here is to aid in reader and understands this reality
With new principle it should be understood that protection domain of the present utility model is not limited to such special statement and embodiment.
Those of ordinary skill in the art can according to disclosed in this utility model these technology enlightenment make various without departing from this practicality
The various concrete deformation of new substantive other and combining, these deformation and combination are still in protection domain of the present utility model.
Claims (3)
1. a kind of linear sliding potentiometer it is characterised in that: include open-topped housing (1) and the lid that covers described housing (1)
Plate (2), cover plate (2) is provided with chute (3), is provided with push handle (4) in chute (3), and push handle (4) can be along the length direction of chute (3)
Mobile；The lower end of push handle (4) is connected with spherical brush portion (5), is provided with resistive element (7), on resistive element (7) inside housing (1)
It is provided with the arcuate groove (8) mating with brush portion (5), brush portion (5) are connected with arcuate groove (8) sliding contact；
The upper end of described push handle (4) is connected with pushing away cap thread, pushes away cap and includes setting female metal cap (9), metal cap
(9) it is arranged with the plastic cap (10) of cuboid outside, the outer wall of plastic cap (10) is provided with continuous toothed projections；Described
Offer blind hole on the internal side wall of housing (1), in blind hole, be filled with desiccant (12).
2. linear sliding potentiometer according to claim 1 it is characterised in that: the width of described plastic cap (10) be more than slide
Groove (3) width.
3. linear sliding potentiometer according to claim 2 it is characterised in that: described metal cap (9) and plastic cap
(10) bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620791956.2U CN205920845U (en) | 2016-07-26 | 2016-07-26 | Linear sliding potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620791956.2U CN205920845U (en) | 2016-07-26 | 2016-07-26 | Linear sliding potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205920845U true CN205920845U (en) | 2017-02-01 |
Family
ID=57873012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620791956.2U Expired - Fee Related CN205920845U (en) | 2016-07-26 | 2016-07-26 | Linear sliding potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205920845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106941036A (en) * | 2016-07-26 | 2017-07-11 | 成都灯岛科技有限公司 | Linear sliding potentiometer |
-
2016
- 2016-07-26 CN CN201620791956.2U patent/CN205920845U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106941036A (en) * | 2016-07-26 | 2017-07-11 | 成都灯岛科技有限公司 | Linear sliding potentiometer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20180726 |