CN219303416U

CN219303416U - Rotary duplex potentiometer

Info

Publication number: CN219303416U
Application number: CN202320075562.7U
Authority: CN
Inventors: 梁中延
Original assignee: Everson Technology Ltd
Current assignee: Everson Technology Ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-07-04
Anticipated expiration: 2033-01-10

Abstract

The utility model relates to the technical field of potentiometers and discloses a rotary duplex potentiometer. The two locking turntables are respectively and rotatably connected to the upper end face and the lower end face of the base; the two resistance values are respectively arranged on the upper end face and the lower end face of the resistance value substrate; the two electric brushes are positioned in the base and are respectively in contact connection with the two resistance areas; the two brushes are also respectively connected with the two locking turntables and respectively move in the two resistance areas along with the rotation of the locking turntables so as to adjust the resistance of the resistance element. The rotary duplex potentiometer provided by the utility model achieves the aim that the resistance value of two resistance elements can be adjusted by the same potentiometer, and devices with two different working point voltages or signal strengths can be adjusted in a circuit.

Description

Rotary duplex potentiometer

Technical Field

The utility model relates to the technical field of potentiometers, in particular to a rotary duplex potentiometer.

Background

The potentiometer is a resistor element with three leading-out ends and the resistance value of the resistor element can be adjusted according to a certain change rule. Potentiometers are generally composed of a resistor body and a movable brush. When the brush moves along the resistor, the resistance value or voltage of the resistor element with a certain relation with the displacement is obtained at the output end.

The Chinese patent with the patent number of CN201711052221.3 discloses a potentiometer, which comprises a PCB, a mechanical knob and an electric brush which is fixed on the mechanical knob and is arranged on the PCB in a sliding way, wherein even-numbered tracks are formed on the PCB to form concentric annular conductive tracks; each two conductive tracks form a group of potential tracks, and each potential track comprises a first conductive track in a closed circular shape and a plurality of second conductive tracks in circular arc shapes and uniformly arranged to form a circular shape; the electric brushes are in short circuit with a group of potential tracks, and the moving tracks of any two electric brushes are not crossed or completely overlapped; more than two resistors are connected in parallel or in series between two legs of the potentiometer; the first conductive track is connected to the middle pin of the potentiometer, and the second conductive track is connected between two adjacent resistors. However, the potentiometer can only move on the potential track by utilizing the electric brush to realize the resistance value adjustment of one resistor, and can only be used for voltage control adjustment of one potentiometer corresponding to one device, so that the utilization rate is low.

Disclosure of Invention

The utility model aims to overcome the problems in the prior art and provides a rotary duplex potentiometer.

In order to achieve the above purpose, the present utility model adopts the following scheme:

the utility model provides a rotatory duplex potentiometer, includes the base and locates resistance base plate in the base still includes:

the two locking turntables are respectively and rotatably connected to the upper end face and the lower end face of the base;

a resistance region; the two resistance values are respectively arranged on the upper end face and the lower end face of the resistance value substrate;

the two electric brushes are positioned in the base and are respectively in contact connection with the two resistance areas; the two brushes are also respectively connected with the two locking turntables and respectively move in the two resistance areas along with the rotation of the locking turntables so as to adjust the resistance of the resistance element.

Further, the base has a mounting cavity; one side of the base is provided with a socket into which the resistance substrate can be inserted; the base is provided with a board slot which is positioned in the mounting cavity and is matched with the resistance substrate.

Further, the brush comprises a brush plate and brush filaments; the brush plate is connected with the locking turntable; the brush filaments are respectively connected with the brush plate and are arranged from inside to outside relative to the rotation central axis of the locking turntable; the brush filaments are in contact connection with the resistance area.

Further, the brush filaments comprise a first arc-shaped brush filament section and a second arc-shaped brush filament section; one end of the first arc-shaped wire brushing section is connected with the brush plate, and the other end of the first arc-shaped wire brushing section is bent around the rotation central axis of the locking turntable in an arc manner and is bent close to the resistance area; one end of the second arc-shaped brush wire section is connected with the other end of the first arc-shaped brush wire section, the other end is bent and arranged around the rotation central axis of the locking turntable in an arc shape, and the arc-shaped concave contact is connected with the resistance area.

Further, the locking turntable comprises a turntable body, a latch, a clamping and rotating hook part and a rotating shaft connecting part; the plurality of clamping teeth are uniformly distributed around the central axis of the turntable body; the rotating shaft connecting part is arranged on the other side of the turntable body and is connected with the electric brush; the clamping and rotating hook parts are distributed on the other side of the turntable body around the rotating shaft connecting part; the base is provided with a clamping and rotating opening communicated with the mounting cavity; the clamping and rotating hook part can be clamped on the clamping and rotating opening in a rotating way.

Further, a clamping groove is formed in one side of the turntable body.

Further, the surface of the brush is plated with a conductive silver paint layer.

Further, the resistance region is composed of a carbon film, a metal foil, a metal film or a metal oxide film.

Further, three lead-out terminals electrically connected with the resistance area are arranged on the upper end face and the lower end face of the resistance substrate.

Compared with the prior art, the utility model has the following advantages:

the utility model is provided with the resistance area on the upper end surface and the lower end surface of the resistance substrate, and is further provided with the two locking turntables and the two electric brushes to be combined, so that the two electric brushes respectively rotate along with the corresponding locking turntables to respectively move in the corresponding resistance areas, the purpose that the resistance value of two resistance elements can be adjusted by the same potentiometer is achieved, and two devices with different working point voltages or signal intensities can be adjusted in the circuit, such as voltage adjustment of a plurality of angle orientations of a rearview mirror of an automobile.

Drawings

The present application is described in further detail below with reference to the drawings and detailed description.

Fig. 1 is a schematic perspective view of a rotary duplex potentiometer according to the present utility model.

Fig. 2 is an exploded perspective view of the rotary duplex potentiometer of the present utility model.

Fig. 3 is a schematic perspective view of the brush of the present utility model.

Fig. 4 is a schematic perspective view of the locking turntable of the present utility model.

The drawings include:

the device comprises a base 1, a mounting cavity 11, a socket 12, a board slot 13, a clamping rotation opening 14, a resistance substrate 2, a locking turntable 3, a turntable body 31, a clamping caulking groove 311, a clamping tooth 32, a clamping rotation hook 33, a rotating shaft connecting part 34, a resistance area 4, a brush 5, a brush board 51, brush wires 52, a first arc-shaped brush wire section 521, a second arc-shaped brush wire section 522 and an outgoing terminal 6.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 4, a rotary duplex potentiometer comprises a base 1, a resistance substrate 2, a locking turntable 3, a resistance region 4 and an electric brush 5, wherein the resistance substrate 2, the locking turntable 3, the resistance region 4 and the electric brush 5 are arranged in the base 1. Wherein, the two locking turntables 3 are respectively and rotatably connected to the upper end face and the lower end face of the base 1; the two resistance value areas 4 are respectively arranged on the upper end face and the lower end face of the resistance value substrate 2; two brushes 5 are positioned in the base 1 and are respectively in contact connection with the two resistance areas 4; the two brushes 5 are also respectively connected with the two locking turntables 3 and respectively move in the two resistance areas 4 along with the rotation of the locking turntables 3 so as to adjust the resistance value of the resistance element.

The upper end face and the lower end face of the resistance substrate 2 are respectively provided with a resistance area 4, two locking turntables 3 and two electric brushes 5 are combined, the two electric brushes 5 respectively rotate along with the corresponding locking turntables 3 to respectively move in the corresponding resistance areas 4, the purpose that the resistance values of two resistance elements can be adjusted by the same potentiometer is achieved, and devices with two different working point voltages or signal intensities can be adjusted in the circuit, such as voltage adjustment of a plurality of angle orientations of a rearview mirror of an automobile, and the like.

In order to mount the resistive substrate 2 more conveniently and with high assembly efficiency, the base 1 is provided with a mounting cavity 11; one side of the base 1 is provided with a socket 12 into which the resistance substrate 2 can be inserted; the base 1 is provided with a board slot 13 which is positioned in the mounting cavity 11 and is matched with the resistance substrate 2. The resistance substrate 2 is matched with the embedded board slot 13, so that the effect of installing the resistance substrate 2 in the base 1 is achieved.

In the present embodiment, the brush 5 includes a brush plate 51 and brush filaments 52; the brush plate 51 is connected with the locking turntable 3; the brush filaments 52 are respectively connected with the brush plate 51 and are arranged from inside to outside relative to the rotation central axis of the locking turntable 3; the brush filaments 52 are in contact connection with the resistance region 4. Through setting up dry strip brush silk 52 like this, make things convenient for brush silk 52 to rotate with locking carousel 3 in order to remove in resistance district 4, reach the purpose of adjusting resistance element's resistance value, and then can reach the purpose that adopts a potentiometre can adjust the voltage of two devices, novel in design is reasonable, and the utilization ratio is more high-efficient, and operational reliability is higher.

Preferably, the brush filaments 52 include a first arcuate brush filament segment 521 and a second arcuate brush filament segment 522; one end of the first arc-shaped wire brushing section 521 is connected with the brush plate 51, and the other end is bent around the rotation central axis of the locking turntable 3 in an arc shape and is bent close to the resistance area 4; one end of the second arc-shaped wire brushing section 522 is connected with the other end of the first arc-shaped wire brushing section 521, the other end is bent and arranged in an arc shape around the rotation central axis of the locking turntable 3, and the arc-shaped concave contact is connected with the resistance area 4. By designing the first arc-shaped brush wire segment 521 and the second arc-shaped brush wire segment 522 to form the brush wire 52, the brush wire 52 can better rotate along with the locking rotary table 3 to move in the resistance area 4, and the effect of well adjusting the resistance value of the resistance element is achieved.

In the present embodiment, the locking dial 3 includes a dial body 31, a latch 32, a latch hook 33, and a rotation shaft connecting portion 34; the plurality of latches 32 are uniformly distributed around the central axis of the turntable body 31; the rotating shaft connecting part 34 is arranged on the other side of the rotating disc body 31 and is connected with the electric brush 5; the plurality of clamping and rotating hook parts 33 are distributed on the other side of the turntable body 31 around the rotating shaft connecting part 34; the base 1 is provided with a card rotating opening 14 communicated with the mounting cavity 11; the latch hook 33 is rotatably latched to the latch opening 14. Through setting up a plurality of latch 32 in one side of the carousel body 31, make things convenient for latch 32 and motor's output shaft's drive mechanism to block together mutually, realize locking carousel 3 steady rotation, and then reach the purpose of steady regulation resistance element's resistance value. The locking rotary table 3 is rotatably clamped on the clamping opening 14 by the clamping rotary hook part 33, so that the locking rotary table 3 rotates on the base 1, and then the connection with the electric brush 5 is realized by the rotary shaft connecting part 34, so that the adjustment of the resistance value of the resistance element is facilitated.

Preferably, the turntable body 31 has a catching groove 311 on one side. Through setting up card caulking groove 311, be favorable to the transmission mechanism of the output shaft of motor to cooperate the kayser fixed, make locking carousel 3 stable rotation.

In this embodiment, the surface of the brush 5 is coated with a conductive silver paint layer, so as to improve the high conductivity of the brush 5 and the resistance area 4. The resistance region 4 is formed by a carbon film, a metal foil, a metal film or a metal oxide film, so that the resistance region 4 has good conductivity.

In this embodiment, three lead-out terminals 6 electrically connected to the resistance area 4 are disposed on the upper end surface and the lower end surface of the resistance substrate 2. Three lead-out terminals 6 are arranged on the upper end face and the lower end face of the resistance substrate 2, so that the purpose that the resistance value of two resistance elements can be adjusted by the same potentiometer is achieved, and two devices with different working point voltages or signal intensities can be adjusted in a circuit.

In summary, the embodiment of the utility model provides a rotary duplex potentiometer, wherein the upper end surface and the lower end surface of a resistance substrate 2 are respectively provided with a resistance area 4, two locking turntables 3 and two electric brushes 5 are further arranged to be combined, so that the two electric brushes 5 respectively rotate along with the corresponding locking turntables 3 to respectively move in the corresponding resistance areas 4, the purpose that the resistance value of two resistance elements can be adjusted by the same potentiometer is achieved, and devices with two different working point voltages or signal intensities can be adjusted in a circuit, such as voltage adjustment of a plurality of angle orientations of a rearview mirror of an automobile, and the like.

The foregoing is merely a preferred embodiment of the present application, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present application, and these modifications and substitutions should also be considered as being within the scope of the present application.

Claims

1. The utility model provides a rotatory duplex potentiometer, includes the base and locates resistance base plate in the base, its characterized in that still includes:

2. The rotary duplex potentiometer according to claim 1, wherein the base has a mounting cavity; one side of the base is provided with a socket into which the resistance substrate can be inserted; the base is provided with a board slot which is positioned in the mounting cavity and is matched with the resistance substrate.

3. The rotary duplex potentiometer according to claim 1, wherein the brush comprises a brush plate and brush filaments; the brush plate is connected with the locking turntable; the brush filaments are respectively connected with the brush plate and are arranged from inside to outside relative to the rotation central axis of the locking turntable; the brush filaments are in contact connection with the resistance area.

4. The rotary duplex potentiometer according to claim 3, wherein the brush wire comprises a first arcuate brush wire segment and a second arcuate brush wire segment; one end of the first arc-shaped wire brushing section is connected with the brush plate, and the other end of the first arc-shaped wire brushing section is bent around the rotation central axis of the locking turntable in an arc manner and is bent close to the resistance area; one end of the second arc-shaped brush wire section is connected with the other end of the first arc-shaped brush wire section, the other end is bent and arranged around the rotation central axis of the locking turntable in an arc shape, and the arc-shaped concave contact is connected with the resistance area.

5. The rotary duplex potentiometer according to claim 2, wherein the locking turntable comprises a turntable body, a latch, a snap hook and a spindle connection; the plurality of clamping teeth are uniformly distributed around the central axis of the turntable body; the rotating shaft connecting part is arranged on the other side of the turntable body and is connected with the electric brush; the clamping and rotating hook parts are distributed on the other side of the turntable body around the rotating shaft connecting part; the base is provided with a clamping and rotating opening communicated with the mounting cavity; the clamping and rotating hook part can be clamped on the clamping and rotating opening in a rotating way.

6. The rotary duplex potentiometer according to claim 5, wherein the turntable body has a snap groove on one side.

7. The rotary duplex potentiometer according to claim 1, wherein the surface of the brush is coated with a conductive silver paint layer.

8. The rotary duplex potentiometer according to claim 1, wherein the resistive region is comprised of a carbon film, a metal foil, a metal film, or a metal oxide film.

9. The rotary duplex potentiometer according to claim 1, wherein three lead-out terminals electrically connected with the resistance area are arranged on the upper end face and the lower end face of the resistance substrate.