CN106057389A - Potentiometer - Google Patents

Abstract

The invention discloses a potentiometer, comprising: a housing, a rotating shaft, a rotating mechanism 1, a rotating mechanism 2, a two-dimensional nano-carbon sheet and three carbon sheet terminals arranged on the two-dimensional nano-carbon sheet; the casing includes an upper casing and the lower casing; the first rotating mechanism, the second rotating mechanism, and the two-dimensional nano-carbon sheet are arranged between the upper casing and the lower casing; the two parallel planes of the shaft are opposed to the straight side one and the straight side two respectively, Rotate the rotating shaft to drive the first rotating mechanism and the second rotating mechanism to adjust the resistance value of the potentiometer. The potentiometer with the two-dimensional nano-carbon sheet provided by the present invention has few switch parts, good high temperature resistance, can not be deformed at high temperature, and avoids the disadvantage that riveting is easily deformed at high temperature. The potentiometer of the two-dimensional carbon nanosheet has excellent electrical conductivity.

Description

a potentiometer

technical field

The invention relates to the field of potentiometers, in particular to a potentiometer.

Background technique

Carbon film potentiometers are widely used in multimedia audio, tape recorders, mixers and other electronic equipment for volume, tone, balance control, current, and voltage adjustment, and can also be used for remote control adjustment.

In the prior art, about 1 to 20 parts of chemical groups are grafted on the surface of nanocarbons. It is expected to use these groups to increase the interface bonding with different host materials, but this has relatively large limitations in use and cannot withstand high temperature environments However, the number of nano-carbon surfaces is still limited, and the strength when it is combined with the polymer is not strong enough. When the composite material is stretched or bent, the carbon nanotubes will still slip out, affecting normal use.

Contents of the invention

In order to overcome the deficiencies in the above-mentioned prior art, the object of the present invention is to provide a potentiometer, including: a housing, a rotating shaft, a rotating mechanism 1, a rotating mechanism 2, a two-dimensional nano-carbon sheet, and a two-dimensional nano-carbon Three carbon terminals on the chip; the two-dimensional nano-carbon sheet includes the following components: 5-10 parts of metal oxide nanotubes, 10-20 parts of conductive carbon black or graphite, zirconia nano-powder The content is 3-6 parts, activated carbon is 10-30 parts, nano-activated carbon fiber is 20-30 parts, nano-metal nickel powder is 1-3 parts, carbon-nitrogen precursor is 5-30 parts, 15-20 parts for polyethylene, 15-30 parts for asphalt dissolved in xylene;

The surface of the two-dimensional carbon nanosheet is provided with a conductive coating, the upper part of the conductive coating is provided with a quantitative coating, and the upper part of the quantitative coating is provided with an accumulation layer;

The material of the conductive coating is a combination of undoped titanium dioxide and zinc oxide or a combination of calcium, cadmium, gadolinium, germanium, cesium, copper, nickel, silver, aluminum, lithium, gold, indium, three Metal nanoparticles including tantalum oxide, tin oxide, tungsten oxide, zinc selenide, cadmium sulfide or zinc sulfide;

The amount of coating material is doped with calcium, cadmium, gadolinium, germanium, cesium, copper, nickel, silver, aluminum, lithium, gold, indium, tantalum trioxide, tin oxide, tungsten oxide, zinc selenide , metal nanoparticles including cadmium sulfide or zinc sulfide;

The material of the poly layer is doped with doped materials such as P-type gallium nitride, nickel oxide, chromium oxide, molybdenum disulfide, poly(N-vinyl carbazole) (PVK), poly(N ,N'-diphenyl-N,N'-bis(m-tolyl)benzidine) (poly-TPD), biphenyl (CBP), N,N'-partial(1-naphthyl;)-N, A combination of N'-biphenyl-1,1'-biphenyl-4,4'-diamine (α-NPD), 4,40,400-tris(N-carbazolyl)triphenylamine (TCTA);

The casing includes an upper casing and a lower casing; the first rotating mechanism, the second rotating mechanism, and the two-dimensional carbon nanosheet are arranged between the upper casing and the lower casing;

The center of the upper shell, the lower shell, the first rotating mechanism, the second rotating mechanism, and the two-dimensional nano-carbon sheet are respectively provided with a central hole, and the rotating shaft passes through the central hole of the upper casing, the first central hole of the rotating mechanism, and the two-dimensional The central hole of the carbon nano sheet, the second central hole of the rotating mechanism, and the central hole of the lower shell are fixed on the central hole of the lower shell;

Five bosses are evenly distributed on the first edge of the rotating mechanism, and five bosses are evenly distributed on the second edge of the rotating mechanism, and the positions of the bosses of the first rotating mechanism correspond to the positions of the second rotating mechanism;

The rotating shaft is provided with a shaft cap and a shaft rod, the shaft rod is provided with two parallel planes, the central hole of the rotating mechanism 1 is provided with two parallel straight sides 1, and the central hole of the rotating mechanism 2 is provided with two parallel planes. The parallel straight side 2 and the two parallel planes of the shaft are opposed to the straight side 1 and the straight side 2 respectively, so that the rotation of the rotating shaft drives the rotation mechanism 1 and the rotation mechanism 2 to adjust the resistance value of the potentiometer.

Preferably, the first rotating mechanism is provided with a rubber pad 1, and the second rotating mechanism is provided with a rubber pad 2;

The rubber pad one is in contact with the two-dimensional carbon nanosheet;

The second rubber pad is in contact with the two-dimensional carbon nanosheet.

Preferably, the carbon and nitrogen precursors include: at least one selected from the group consisting of urea, dicyandiamide, melamine, and their respective mixtures with low-dimensional nanocarbons.

Preferably, the nano metal is one or more of Al, or Ni, or Li, or Zn, or Cu, or Ti, or Fe.

Preferably, the metal oxide nanotube is one or more of Al2O3, or ZrO2, or TiO2, or MnO2, or V2O5, and its pore size ranges from 1 nm to 100 nm.

Preferably, the particle size of the activated carbon is in the range of 1nm-80μm, the specific surface area is 500m2/g-2000m2/g, and the density is 1.0g/cm3-1.5g/cm3.

Preferably, the density of the activated carbon is 0.3g/cm3-1.0g/cm3, the mesopores are >40%, and the mesopores are pores in the range of 30nm-60nm.

Preferably, in the carbon-nitrogen precursor, the mass percentage of nitrogen in the carbon-nitrogen precursor is 20-30 parts.

As can be seen from the above technical solutions, the present invention has the following advantages:

In two-dimensional carbon nanosheets, nano-metals and nano-activated carbon fibers improve the conductivity of carbon-based materials, reduce the internal resistance of electrode materials, and introduce metal oxide nanotubes at the same time to improve the effective specific surface area of carbon-based electrode materials. , using the nano-synergistic effect of the surface of the nano-carbon-based material and the surface of the metal oxide nanotube, greatly increasing the utilization of the surface area of the active material.

It can withstand high temperature environment, improve the strength of the combination of nano-carbon and polymer, and expand the application of two-dimensional nano-carbon sheet in various fields.

Description of drawings

In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings that need to be used in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. As far as people are concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

Fig. 1 is the overall structural diagram of the potentiometer with two-dimensional nanocarbon sheet;

Figure 2 is an exploded view of a potentiometer with two-dimensional carbon nanosheets.

detailed description

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions protected by the present invention will be clearly and completely described below using specific embodiments and accompanying drawings. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent.

This embodiment provides a potentiometer, as shown in Fig. 1 and Fig. 2, including: a housing 1, a rotating shaft 3, a rotating mechanism 4, a rotating mechanism 2 6, a two-dimensional carbon nanosheet 5 and a two-dimensional Three carbon sheet terminals 2 on the carbon nanosheet 5; the housing 1 includes an upper casing 11 and a lower casing 12; a rotating mechanism one 4, a rotating mechanism two 6, and two-dimensional carbon nanosheets 5 are arranged on the upper casing 11 and the lower casing 12; Between the lower housing 12;

The centers of the upper casing 11, the lower casing 12, the first rotating mechanism 4, the second rotating mechanism 6, and the two-dimensional nano-carbon sheet 5 are respectively provided with a central hole, and the rotating shaft 3 passes through the central hole of the upper casing 11 and the first rotating mechanism successively. 4 central holes, 5 central holes of the two-dimensional nano-carbon sheet, 6 central holes of the rotating mechanism, 12 central holes of the lower casing, fixed on the 12 central holes of the lower casing;

There are five bosses evenly distributed on the edge of the first rotating mechanism 4, and five bosses are evenly distributed on the edge of the second rotating mechanism 6, and the positions of the bosses of the first rotating mechanism 4 and the second 6 of the rotating mechanism are corresponding;

The rotating shaft 3 is provided with a shaft cap and a shaft rod, and the shaft rod is provided with two parallel planes. Parallel straight side two, two parallel planes of the shaft rod are held against straight side one and straight side two respectively, so that the rotating shaft 3 rotates to drive the turning mechanism one 4 and the turning mechanism two 6 to adjust the resistance value of the potentiometer.

The potentiometer provided by the invention has few switch parts, good high temperature resistance, can not be deformed at high temperature, and avoids the disadvantage that riveting is easily deformed at high temperature. The potentiometer of the two-dimensional carbon nanosheet has excellent electrical conductivity.

Rotating mechanism one 4 is provided with rubber pad one, and rotating mechanism two 6 is provided with rubber pad two; rubber pad one is in contact with two-dimensional nano-carbon sheet 5; rubber pad two is in contact with two-dimensional nano-carbon sheet 5. Reduce the wear of the first rotating mechanism 4 and the second rotating mechanism 6 relative to the two-dimensional nano-carbon sheet 5, prolong the service time of the potentiometer, and ensure the performance of the potentiometer.

The two-dimensional nano-carbon sheet includes the following components: 5-10 parts of metal oxide nanotubes, 10-20 parts of conductive carbon black or graphite, 3-6 parts of zirconia nano-powder, activated carbon 10-30 parts for nano-activated carbon fiber, 1-3 parts for nano-metal nickel powder, 5-30 parts for carbon-nitrogen precursor, 15-20 parts for polyethylene, asphalt Soluble in xylene is 15-30 parts;

The surface of the two-dimensional carbon nanosheet is provided with a conductive coating, the upper part of the conductive coating is provided with a quantitative coating, and the upper part of the quantitative coating is provided with an accumulation layer;

The material of the conductive coating is a combination of undoped titanium dioxide and zinc oxide or a combination of calcium, cadmium, gadolinium, germanium, cesium, copper, nickel, silver, aluminum, lithium, gold, indium, three Metal nanoparticles including tantalum oxide, tin oxide, tungsten oxide, zinc selenide, cadmium sulfide or zinc sulfide;

The amount of coating material is doped with calcium, cadmium, gadolinium, germanium, cesium, copper, nickel, silver, aluminum, lithium, gold, indium, tantalum trioxide, tin oxide, tungsten oxide, zinc selenide , metal nanoparticles including cadmium sulfide or zinc sulfide;

The material of the poly layer is doped with doped materials such as P-type gallium nitride, nickel oxide, chromium oxide, molybdenum disulfide, poly(N-vinyl carbazole) (PVK), poly(N ,N'-diphenyl-N,N'-bis(m-tolyl)benzidine) (poly-TPD), biphenyl (CBP), N,N'-partial(1-naphthyl;)-N, A combination of N'-biphenyl-1,1'-biphenyl-4,4'-diamine (α-NPD), 4,40,400-tris(N-carbazolyl)triphenylamine (TCTA);

The first rotating mechanism is provided with a rubber pad 1, and the second rotating mechanism is provided with a rubber pad 2;

The rubber pad one is in contact with the two-dimensional carbon nanosheet;

The second rubber pad is in contact with the two-dimensional carbon nanosheet.

The carbon-nitrogen precursor includes: at least one selected from the group consisting of urea, dicyandiamide, melamine and their respective mixtures with low-dimensional nano-carbon.

The nano metal is one or more of Al, or Ni, or Li, or Zn, or Cu, or Ti, or Fe.

The metal oxide nanotube is one or more of Al2O3, or ZrO2, or TiO2, or MnO2, or V2O5, and its pore diameter ranges from 1nm to 100nm.

The particle size of the activated carbon is in the range of 1nm-80μm, the specific surface area is 500m2/g-2000m2/g, and the density is 1.0g/cm3-1.5g/cm3.

The density of the activated carbon is 0.3g/cm3-1.0g/cm3, the mesopores are more than 40%, and the mesopores are pores in the range of 30nm-60nm.

In the carbon-nitrogen precursor, the mass percentage of nitrogen in the carbon-nitrogen precursor is 20-30 parts.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the differences from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. a potentiometer, it is characterised in that including: housing, rotary shaft, rotating mechanism one, rotating mechanism two, two-dimensional nano carbon Sheet and three the carbon plate terminals being arranged on two-dimensional nano carbon plate；Described two-dimensional nano carbon plate includes that constituent content is: metal Oxide nano 5 parts～10 parts, conductive carbon black or content of graphite are 10 parts～20 parts, the content of nm-class powder of zirconium oxide is 3 Part～6 parts, activated carbon be 10 parts～30 parts, activated carbon nano fiber be 20 parts～30 parts, nano metal nickel powder body is 1 part～3 Part, carbon nitrogen presoma be 5 parts～30 parts, polyethylene be 15 parts～20 parts, to be dissolved in dimethylbenzene be 15 parts～30 parts to Colophonium；

Described two-dimensional nano carbon plate surface is provided with leads coating, leads the coating top amount of being provided with coating, and amount coating top is provided with poly-figure layer；

The described compositions that material is titanium dioxide and the zinc oxide not mixed leading coating or combined dopants include calcium, Cadmium, gadolinium, germanium, caesium, copper, nickel, silver, aluminum, lithium, gold, indium, three oxidation two tantalums, stannum oxide, tungsten oxide, zinc selenide, cadmium sulfide or sulfuration Zinc is at interior metal nanoparticle；

The material of described amount coating includes calcium for being doped with, cadmium, gadolinium, germanium, caesium, copper, nickel, silver, aluminum, lithium, gold, indium, three oxidations two Tantalum, stannum oxide, tungsten oxide, zinc selenide, cadmium sulfide or zinc sulfide are at interior metal nanoparticle；

The material of described poly-figure layer is that to be doped with the material of doping be p-type gallium nitride, nickel oxide, chromic oxide, molybdenum bisuphide, Poly-(N-VCz) (PVK), poly-(N, N'-diphenyl-N, N'-bis-(tolyl) benzidine) (poly-TPD), biphenyl (CBP), N, N'-(1-naphthyl partially;)-N, N'-biphenyl-1,1'-biphenyl-4,4'-diamine (α-NPD), 4,40,400-tri-(N- Carbazyl) combination of triphenylamine (TCTA)；

Described housing includes upper shell and lower house；Rotating mechanism one, rotating mechanism two, two-dimensional nano carbon plate are arranged on upper shell And between lower house；

Described upper shell, lower house, rotating mechanism one, rotating mechanism two, the center of two-dimensional nano carbon plate are respectively equipped with centre bore, Rotary shaft sequentially passes through upper shell centre bore, rotating mechanism one centre bore, two-dimensional nano carbon plate centre bore, rotating mechanism two center Hole, lower house centre bore, be fixed on lower house centre bore；

It is evenly distributed with five boss on described rotating mechanism one edge, described rotating mechanism two edge is evenly distributed with five Boss, described rotating mechanism one is corresponding with the lug boss position of described rotating mechanism two；

Described rotary shaft is provided with axle cap and axostylus axostyle, and axostylus axostyle is provided with two parallel planes, and the centre bore of rotating mechanism one is provided with two Individual parallel straight flange one, the centre bore of rotating mechanism two is provided with two parallel straight flanges two, two parallel putting down of axostylus axostyle Face offsets with straight flange one, straight flange two respectively, makes described rotary shaft rotated by rotation mechanism one and rotating mechanism two, regulation electricity The resistance of position device.

Potentiometer the most according to claim 1, it is characterised in that

Described rotating mechanism one is provided with rubber cushion one, and described rotating mechanism two is provided with rubber cushion two；

Described rubber cushion one contacts with described two-dimensional nano carbon plate；

Described rubber cushion two contacts with described two-dimensional nano carbon plate.

Potentiometer the most according to claim 1, it is characterised in that

Described carbon nitrogen presoma includes: selected from by carbamide, cyanamid dimerization, tripolycyanamide and each of which and low-dimensional nano-sized carbon Mixture composition group at least one.

Potentiometer the most according to claim 1, it is characterised in that

Nano metal is one or more in Al or Ni or Li or Zn or Cu or Ti or Fe.

Potentiometer the most according to claim 1, it is characterised in that

Metal oxide nanotubes is one or more in Al2O3 or ZrO2 or TiO2 or MnO2 or V2O5, its aperture Scope is 1nm～100nm.

Potentiometer the most according to claim 1, it is characterised in that

The granularity of described activated carbon is in 1nm～80 μ m, and specific surface area is 500m2/g～2000m2/g, and density is 1.0g/ Cm3～1.5g/cm3.

Potentiometer the most according to claim 1, it is characterised in that

The density of described activated carbon is 0.3g/cm3～1.0g/cm3, middle micropore ＞ 40%, and middle micropore is 30nm～60nm scope Hole.

Potentiometer the most according to claim 1, it is characterised in that

In described carbon nitrogen presoma, nitrogen mass percent in described carbon nitrogen presoma is 20 parts～30 parts.