CN206293231U - A kind of potentiometer - Google Patents

A kind of potentiometer Download PDF

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Publication number
CN206293231U
CN206293231U CN201621391679.2U CN201621391679U CN206293231U CN 206293231 U CN206293231 U CN 206293231U CN 201621391679 U CN201621391679 U CN 201621391679U CN 206293231 U CN206293231 U CN 206293231U
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China
Prior art keywords
potentiometer
electrode
low
base
resistor disc
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Application number
CN201621391679.2U
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Chinese (zh)
Inventor
王琴
王跃
张君
罗治平
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Sichuan Yongxing Electronics Co Ltd
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Sichuan Yongxing Electronics Co Ltd
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Abstract

The utility model discloses a kind of potentiometer, it includes base, upper lid, resistor disc and four electrodes;Base connects and forms an accommodating cavity therebetween with top cap, rotating shaft is arranged on base and upper lid by bearing and collar, one end of rotating shaft is connected by bearing and collar with base, the rotating shaft other end is stretched out outside lid, resistor disc is provided with base, insulation sleeve is provided with rotating shaft section in accommodating cavity, collecting ring is provided with outside insulation sleeve, the collecting ring bottom is provided with brushgear housing, reed is provided with brushgear housing, the brush being connected with resistor disc contact is provided with reed, the brush can be slided under the drive of rotating shaft on resistor disc;The resistor disc includes covering copper strips, matrix and resistive band, and the resistive band is divided into low-resistance belt and high stop band, and four binding posts are provided with described base, and four binding posts are connected with four electrodes of potentiometer respectively.The utility model is rational in infrastructure, resistor disc printing manufacture craft is simple, be easy to production.

Description

A kind of potentiometer
Technical field
The utility model is related to this field of electrical components, and in particular to a kind of potentiometer.
Background technology
The conventional output form of potentiometer is linear and non-linear two kinds, it is non-linear in conductive plastic potentiometer using than It is more universal.Conductive plastic potentiometer has flatness good, high resolution, high temperature performance stabilization, impact resistance and vibration, chemically-resistant The advantages of burn into anti-atomic radiation, it is widely used in Industry Control, aerospace device, Aeronautics and Astronautics, track traffic, weapon etc. In field.
At present, the potentiometer of domestic production realizes that the major way of function performance has change winding method and changes circuit company Two kinds of mode is connect, but function accordance is poor, and service life is short can not to meet high-precision mil in the armament systems such as China's Aeronautics and Astronautics The demand of displacement sensor;And by way of using resistive band film layer figure is changed, for non-rectilinear function curve, resistance is consistent In the case of occur that the width ratio of resistive band film layer figure differs larger situation, be limited by product appearance and size and can not Realize;In addition, adopting can increase in this way technique manufacture difficulty and to subsequently linearly trimming generation considerable influence, it is difficult to meet Function curve output is required.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of rational in infrastructure, resistor disc printing system Make process is simple, be easy to the potentiometer of production.
The purpose of this utility model is achieved through the following technical solutions:A kind of potentiometer, it include base, on Lid, resistor disc and four electrodes:First electrode, second electrode, the 3rd electrode and the 4th electrode;Base and top cap connect and An accommodating cavity is formed between the two, and rotating shaft is arranged on base and upper lid by bearing and collar, and one end of rotating shaft passes through bearing It is connected with base with collar, the rotating shaft other end is stretched out outside lid, resistor disc is provided with base, in the rotating shaft section in accommodating cavity Insulation sleeve is provided with, collecting ring is provided with outside insulation sleeve, the collecting ring bottom is provided with brushgear housing, is provided with brushgear housing Reed, is provided with the brush being connected with resistor disc contact on reed, on reed, the brush can be in the band of rotating shaft for spot welding of brush Slided on resistor disc under dynamic;
The resistor disc includes covering copper strips, matrix and resistive band, and the resistive band is divided into two sections, and one section is low-resistance belt, one Section is high stop band, and four binding posts are provided with described base, and four binding posts are connected with four electrodes of potentiometer respectively.
It is preferred that, first electrode, the 3rd electrode are set in described high stop band, low-resistance belt center sets the 4th Electrode, described binding post includes the first binding post, middle binding post, the 3rd binding post and the 4th binding post;First electrode, the 3rd Electrode and the 4th electrode connect the first binding post, the 3rd binding post and the 4th binding post by lead respectively,
It is preferred that, the hexa-atomic B alloy wire contacted with collecting ring, hexa-atomic B alloy wire are provided with described collecting ring Constitute second electrode, binding post in second electrode connection.
It is preferred that, described high stop band is set to two parts, and a part is the first high stop band, and another part is the Two high stop band;One end of first high stop band is set covers copper strips, other end connection low-resistance belt, and one end of the second high stop band is set covers copper Band, other end connection low-resistance belt.
It is preferred that, described low-resistance belt is set to two parts, and a part is the first low-resistance belt, and another part is the Two low-resistance belts;Set between first low-resistance belt and the second low-resistance belt and cover copper strips, the first low-resistance belt connects the first high stop band, and second is low Stopband connects the second high stop band.
It is preferred that, it is provided with packing ring between described bearing and collar.
It is preferred that, the heat-shrink tube of about 1.5mm~3mm length, and heat-shrink tube are put on described hexa-atomic B alloy wire It is close to base inner wall.
It is preferred that, described brush is R shape brushes, and the resistive band on brush arc surface contact resistance piece can subtract Few abrasion of the brush to resistive band, improves the rotational life of potentiometer.
It is preferred that, described high stop band and low-resistance belt is respectively adopted different resistance slurry segmentation printings.
It is preferred that, described brushgear housing is riveted with reed, then the rivet portion that will be had more beats out, then two 0 The two is welded using scolding tin on the coincidence profile side of part, the reliability of the electrical connection of this tie point is ensured with this.
The beneficial effects of the utility model are:Resistive band is set to two sections by the utility model, and one section is low-resistance belt, one section It is high stop band, rational in infrastructure, resistor disc printing manufacture craft is simple, be easy to production.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is partial structural diagram of the present utility model;
Fig. 3 is the utility model resistor disc structural representation;
Fig. 4 is the utility model brush modular construction schematic diagram;
In figure, 1- bases;2- brushes;3- epoxide-resin glues;4- resistor discs;5- leads;6- binding posts;7- reeds;8- collection Stream ring;9- insulation sleeves;10- collars;11- packing rings;12- bearings;13- rotating shafts;The hexa-atomic B alloy wires of 14-;15- heat-shrink tubes;Connect in 16- Terminal;Covered on 17-;18- sunk screws;19- epoxide-resin glues;20- brushgear housings.
Specific embodiment
The technical solution of the utility model, but protection domain of the present utility model are described in further detail below in conjunction with the accompanying drawings It is not limited to as described below.
As shown in Figure 1 to 4, a kind of potentiometer, it includes base 1, upper lid 17, resistor disc 4 and four electrodes:First Electrode, second electrode, the 3rd electrode and the 4th electrode;Base 1 is connected with upper lid 17 and forms an accommodating cavity therebetween, institute Lid 17 is stated (to set one layer of epoxide-resin glue 19 on the basis of screw is fixed to fill out by sunk screw 18 and epoxide-resin glue 19 Fill layer) it is fixed on base 1.Rotating shaft 13 is arranged on base 1 and upper lid 17 by bearing 12 and collar 10, one end of rotating shaft 13 It is connected with base 1 by bearing 12 and collar 10, the other end of rotating shaft 13 is stretched out outside lid 17, and resistor disc is provided with base 1 4, resistor disc 4 is fixed on base 1 by epoxy resin 3, and insulation sleeve 9, insulation sleeve 9 are provided with 13 sections of rotating shaft in accommodating cavity Outside is provided with collecting ring 8, and the bottom of the collecting ring 8 is provided with brushgear housing 20, reed 7 is provided with brushgear housing 20, on reed 7 The brush 2 for being contacted with resistor disc 4 and being connected is provided with, the brush 2 can be slided under the drive of rotating shaft 13 on resistor disc 4;
The resistor disc 4 includes covering copper strips, matrix and resistive band, and the resistive band is divided into two sections, and one section is low-resistance belt, one Section is high stop band, is provided with four binding posts on described base 1, four binding posts respectively with four electrode phases of potentiometer Even.
Preferably, first electrode, the 3rd electrode are set in described high stop band, and low-resistance belt center sets the 4th electrode, Described binding post includes the first binding post 6, middle binding post 16, the 3rd binding post 6 and the 4th binding post 6;First electrode, the 3rd Electrode and the 4th electrode connect the first binding post, the 3rd binding post and the 4th binding post by lead 5 respectively.Resistor disc 4 is drawn Electrode transmits the output signal of potentiometer using Copper Foil, and without traditional silver paste as extraction electrode.Make to draw using Copper Foil Go out good welding performance of the electrode compared with silver paste, the connection reliability of resistor disc 4 and lead 5 can be improved.
Preferably, the hexa-atomic B alloy wire 14 contacted with collecting ring 8, hexa-atomic B alloy wire 14 are provided with described collecting ring 8 Constitute second electrode, binding post 16 in second electrode connection.
Preferably, described high stop band is set to two parts, and a part is the first high stop band, and another part is the second high resistant Band;One end of first high stop band is set covers copper strips, other end connection low-resistance belt, and one end of the second high stop band is set covers copper strips, separately One end connects low-resistance belt.
Preferably, described low-resistance belt is set to two parts, and a part is the first low-resistance belt, and another part is the second low-resistance Band;Set between first low-resistance belt and the second low-resistance belt and cover copper strips, the first low-resistance belt connects the first high stop band, the second low-resistance belt connects Connect the second high stop band.
Preferably, packing ring 11 is provided between described bearing 12 and collar 10.
Preferably, the heat-shrink tube 15 of about 1.5mm~3mm length, and heat-shrink tube 15 are put on described hexa-atomic B alloy wire 14 It is close to the inwall of base 1.The reason for increasing heat-shrink tube 15 is to ensure that hexa-atomic B alloy wire 14 applies certain pressure to collecting ring 8, makes collection Stream silk contacts reliability with collecting ring 8.
Preferably, described brush 2 is R shapes brush 2, and the resistive band on the arc surface contact resistance piece 4 of brush 2 can be reduced Abrasion of the brush 2 to resistive band, improves the rotational life of potentiometer.Conventional brush 2 is with the fit system of resistor disc 4:Electricity The brush abutment resistor disc 4 of brush 2, and the arc surface contact resistance piece 4 of the brush 2 that the potentiometer is used, increase contact surface Product, reduces abrasion of the brush 2 to resistive band, improves the rotary load life-span of potentiometer.
Preferably, described high stop band and low-resistance belt are respectively adopted different resistance slurry segmentation printings.The making of resistor disc 4 Technique makes resistor disc 4 using the segmentation printing of different resistance slurries, it is possible to achieve other function curves output in addition to straight line, To avoid realizing function output function using winding method or circuit connecting mode is changed.
Preferably, described brushgear housing 20 is riveted with reed 7, then the rivet portion that will be had more beats out, then in two parts Coincidence profile side on the two is welded using scolding tin, the reliability of the electrical connection of this tie point is ensured with this.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, should referred to Go out, all any modification, equivalent and improvement made within spirit of the present utility model and principle etc. all should be included Within protection domain of the present utility model.

Claims (10)

1. a kind of potentiometer, it is characterised in that:It includes base, upper lid, resistor disc and four electrodes:First electrode, second Electrode, the 3rd electrode and the 4th electrode;Base and top cap connect and form an accommodating cavity therebetween, rotating shaft by bearing and Collar is arranged on base and upper lid, and one end of rotating shaft is connected by bearing and collar with base, and the rotating shaft other end stretches out Shang Gai Outside, resistor disc is provided with base, insulation sleeve is provided with the rotating shaft section in accommodating cavity, afflux is provided with outside insulation sleeve Ring, the collecting ring bottom is provided with brushgear housing, and reed is provided with brushgear housing, is provided with reed and is connected with resistor disc contact Brush, the brush can under the drive of rotating shaft on resistor disc slide;
The resistor disc includes covering copper strips, matrix and resistive band, and the resistive band is divided into two sections, and one section is low-resistance belt, and one section is High stop band, is provided with four binding posts on described base, four binding posts are connected with four electrodes of potentiometer respectively.
2. a kind of potentiometer according to claim 1, it is characterised in that:First electrode, the are set in described high stop band Three electrodes, low-resistance belt center sets the 4th electrode, and described binding post includes the first binding post, middle binding post, the 3rd wiring Post and the 4th binding post;First electrode, the 3rd electrode and the 4th electrode connect the first binding post, the 3rd wiring by lead respectively Post and the 4th binding post.
3. a kind of potentiometer according to claim 2, it is characterised in that:It is provided with described collecting ring and is connect with collecting ring Tactile hexa-atomic B alloy wire, hexa-atomic B alloy wire constitutes second electrode, binding post in second electrode connection.
4. a kind of potentiometer according to claim 3, it is characterised in that:Described high stop band is set to two parts, one It is divided into the first high stop band, another part is the second high stop band;One end of first high stop band is set covers copper strips, other end connection low-resistance Band, one end of the second high stop band is set covers copper strips, other end connection low-resistance belt.
5. a kind of potentiometer according to claim 4, it is characterised in that:Described low-resistance belt is set to two parts, one It is divided into the first low-resistance belt, another part is the second low-resistance belt;Set between first low-resistance belt and the second low-resistance belt and cover copper strips, first Low-resistance belt connects the first high stop band, and the second low-resistance belt connects the second high stop band.
6. a kind of potentiometer according to claim 1, it is characterised in that:Pad is provided between described bearing and collar Circle.
7. according to a kind of potentiometer that one of claim 3~5 is described, it is characterised in that:About 1.5mm is put on hexa-atomic B alloy wire The heat-shrink tube of~3mm length, and heat-shrink tube is close to base inner wall.
8. according to a kind of potentiometer that one of claim 1~6 is described, it is characterised in that:Described brush is R shape brushes, electricity Resistive band on brush arc surface contact resistance piece, can reduce abrasion of the brush to resistive band, improve the rotational life of potentiometer.
9. according to a kind of potentiometer that one of claim 1~6 is described, it is characterised in that:Described high stop band and low-resistance belt point Cai Yong not different resistance slurry segmentation printings.
10. according to a kind of potentiometer that one of claim 1~6 is described, it is characterised in that:Described brushgear housing and reed riveting Connect, then the rivet portion that will be had more beats out, and is then welded the two using scolding tin on the coincidence profile side of two parts, is protected with this Demonstrate,prove the reliability of the electrical connection of this tie point.
CN201621391679.2U 2016-12-19 2016-12-19 A kind of potentiometer Active CN206293231U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621391679.2U CN206293231U (en) 2016-12-19 2016-12-19 A kind of potentiometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621391679.2U CN206293231U (en) 2016-12-19 2016-12-19 A kind of potentiometer

Publications (1)

Publication Number Publication Date
CN206293231U true CN206293231U (en) 2017-06-30

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CN201621391679.2U Active CN206293231U (en) 2016-12-19 2016-12-19 A kind of potentiometer

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109741892A (en) * 2019-01-29 2019-05-10 安徽功率电气有限公司 A kind of train spine vehicle Special-purpose potentiometer
CN111755185A (en) * 2020-07-09 2020-10-09 四川航天烽火伺服控制技术有限公司 Angle potentiometer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109741892A (en) * 2019-01-29 2019-05-10 安徽功率电气有限公司 A kind of train spine vehicle Special-purpose potentiometer
CN109741892B (en) * 2019-01-29 2021-03-02 安徽功率电气有限公司 Special potentiometer for train scotch
CN111755185A (en) * 2020-07-09 2020-10-09 四川航天烽火伺服控制技术有限公司 Angle potentiometer

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