CN217588577U - High-performance duplex potentiometer - Google Patents
High-performance duplex potentiometer Download PDFInfo
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- CN217588577U CN217588577U CN202221330816.7U CN202221330816U CN217588577U CN 217588577 U CN217588577 U CN 217588577U CN 202221330816 U CN202221330816 U CN 202221330816U CN 217588577 U CN217588577 U CN 217588577U
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Abstract
The utility model discloses a high-performance duplex potentiometer, which comprises a shell, wherein a rotating shaft hole lower end for a rotating shaft to pass through is arranged in the middle position of the upper end of the shell, a cover plate is fixedly arranged at the lower end of the rotating shaft hole, a first accommodating cavity for installing a first bearing is arranged at the outer side of the rotating shaft hole, and a second accommodating cavity for installing a second bearing is arranged at the inner side of the first accommodating cavity; the substrate is fixedly arranged in the shell, one surface of the substrate is provided with an arc-shaped resistance sheet, and the other surface of the substrate is provided with a wiring conducting sheet; the rotating piece is fixedly provided with a first electric brush and a second electric brush which are used for connecting the resistor disc and the conducting strip; the rotating shaft penetrates through the first bearing, the shell and the second bearing in sequence and then is fixedly connected with the rotating piece. Compared with the prior art, the utility model has the advantages of as follows: the friction of the rotating shaft is greatly reduced by the first bearing and the second bearing, and the stability of the product is improved. And meanwhile, the inner wall of the shell is provided with the glue injection clamping groove, and after glue is solidified in the glue injection clamping groove, a clamping ring matched with the glue injection clamping groove is formed on the side surface of the cover plate, so that the direct connection strength of the cover plate and the shell is effectively improved.
Description
Technical Field
The utility model relates to a potentiometre technical field especially relates to a high performance pair potentiometre.
Background
The potentiometer can convert a mechanical angle signal into an electric signal to be output, has the characteristics of stable performance, simple structure and lower cost, and is widely used in the fields of industry and national defense and military industry. In the prior art, a potentiometer generally consists of a resistor body and a rotatable brush. When the brush rotates left and right on the resistor strip, a resistance value or a voltage which has a certain relation with the displacement is obtained at the output end, and therefore the rotation angle is obtained.
Chinese patent publication No. CN202736619U discloses a coaxial duplex potentiometer, which comprises an upper connection base component, a lower connection base component, a rotating shaft component and a shaft sleeve; the rotating shaft component comprises a rotating shaft and two reeds which are respectively connected with two end faces of the large end of the rotating shaft; the upper connection base component comprises an upper connection base and an upper connection carbon film welding piece component and is of an integrated structure; the lower connection base assembly comprises a lower connection base and a lower connection carbon film soldering lug assembly and is of an integrated structure; the lower end of the shaft sleeve and the bottom of the upper connection base are connected into a whole through sealing welding, the upper connection base and the lower connection base are connected into a whole through sealing welding, the upper connection carbon film welding sheet assembly and the lower connection carbon film assembly are of an opposite structure, the large end of the rotating shaft is located between the upper connection carbon film welding sheet assembly and the lower connection carbon film assembly, the free ends of the reeds on two sides of the large end of the rotating shaft are correspondingly connected with the upper connection carbon film or the lower connection carbon film respectively, and the large end of the rotating shaft is provided with a rotating shaft rotation limiting structure between the upper connection base and the lower connection base.
However, the coaxial duplex potentiometer in the above technical solution has the following disadvantages: on one hand, the lower end of the shaft sleeve of the coaxial duplex potentiometer is connected with the bottom of the upper duplex base by adopting seal welding, and the seal welding is adopted when the product is miniaturized, so that the processing difficulty is high, the realization is difficult, and the processing cost is high; on the other hand, the rotating shaft and the shell have larger friction, which affects the stability of the product and is not beneficial to long-term use. Therefore, a high performance duplex potentiometer is needed to solve the above problems.
Disclosure of Invention
The utility model aims at overcoming the problems of the prior art and providing a high-performance duplex potentiometer. In order to achieve the purpose, the utility model adopts the following scheme:
a high performance dual potentiometer, comprising:
the middle position of the upper end of the shell is provided with a rotating shaft hole through which a rotating shaft can pass, the lower end of the rotating shaft hole is fixedly provided with a cover plate, the outer side of the rotating shaft hole is provided with a first accommodating cavity for installing a first bearing, and the inner side of the first accommodating cavity for installing a second bearing is provided with a second accommodating cavity for installing a second bearing;
the substrate is fixedly arranged in the shell, one surface of the substrate is provided with an arc-shaped resistance chip, and the other surface of the substrate is provided with a wiring conducting chip;
the rotating piece is fixedly provided with a first electric brush and a second electric brush which are used for connecting the resistor disc and the conducting strip; when the electric brush rotates on the resistance sheet and the conducting sheet through the rotating piece, the connection length of the resistance sheet can be changed, so that the voltage output electric signal is changed.
The rotating shaft sequentially penetrates through the first bearing, the shell and the second bearing and then is fixedly connected with the rotating piece.
Furthermore, the resistance card includes first resistance card and second resistance card, and the conducting strip includes first conducting strip and second conducting strip, and first resistance card passes through first brush with first conducting strip to be connected, and the second resistance card passes through the second brush with the second conducting strip to be connected.
Further, the cover plate is formed by solidifying glue, and the inner wall of the lower end of the shell is provided with a glue injection clamping groove for preventing the glue from falling off. When the glue is solidified in the glue injection clamping groove, a clamping ring matched with the glue injection clamping groove is formed, and the direct connection strength of the glue cover plate and the shell is effectively improved.
Furthermore, the side surface of the substrate is provided with a limiting convex part, and a limiting groove for the limiting convex part to be clamped in is formed in the shell. The limiting convex part and the limiting groove can further prevent the substrate from rotating in the shell.
Furthermore, the side face of the rotating shaft is provided with a limiting ring for preventing the first bearing from being separated, and the rotating shaft sequentially penetrates through the first bearing, the shell and the second bearing to be inserted into the rotating part, and then the limiting ring is abutted against the first bearing. During installation, the first bearing is sleeved into the rotating shaft, and then the rotating shaft is inserted into the shell, so that the structure is simple, and the installation is convenient.
Furthermore, a strip-shaped connecting hole for inserting the rotating shaft is formed in the middle of the rotating piece.
Furthermore, be equipped with the card post that is used for installing the brush on the rotating member, the brush all is through card post and carousel fixed connection, and the brush is the type brush that colludes. The hook-shaped electric brush is contacted with the resistance chip through the V-shaped part, so that the resistance chip can be prevented from being damaged after the electric brush slides and rubs on the resistance chip for many times, the stability of a product is improved, and the service life of the product is prolonged.
Furthermore, a connecting hole is formed in the substrate, a conductive coating is arranged on the inner wall of the connecting hole, and the wiring conductive sheet is connected with the conductive sheet on the other surface of the substrate through the connecting hole. The wire is connected with the potentiometer through a wiring conducting strip, and the high-performance duplex potentiometer is internally provided with 2 resistance strips and 2 conducting strips.
Compared with the prior art, the utility model has the advantages of as follows: the high-performance duplex potentiometer can output two paths of signals simultaneously, and the first bearing and the second bearing which are used for being matched with the rotating shaft are arranged on the inner side and the outer side of the shell respectively, so that friction of the rotating shaft is greatly reduced, stability of a product is improved, and the service life of the product is prolonged. The cover plate is formed by glue solidification, when the glue cover plate is formed, an integral type snap ring matched with the glue injection clamping groove is formed on the rear side face, and the direct connection strength of the glue cover plate and the shell is effectively improved.
Drawings
The present application will be described in further detail with reference to the drawings and the following detailed description.
Fig. 1 is a schematic view of the overall decomposition structure of the high-performance duplex potentiometer of the present invention.
Fig. 2 is a three-dimensional structure diagram of a housing in a high-performance duplex potentiometer according to the present invention.
Fig. 3 is a schematic structural diagram of a substrate in a high performance duplex potentiometer according to the present invention.
Fig. 4 is a schematic cross-sectional structure diagram of a high-performance duplex potentiometer according to the present invention.
Fig. 5 is a schematic view of the overall assembly structure of a high-performance duplex potentiometer according to the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1-5, a high performance twin potentiometer includes:
as shown in fig. 2 and 4, the housing 1 is provided with a cover plate 7 fixedly arranged at the lower end of a hole of a rotating shaft 2 through which the rotating shaft 2 can pass at the middle position of the upper end of the housing 1, and a second accommodating cavity 102 for installing a second bearing 4 is arranged at the inner side of a first accommodating cavity 101 for installing a first bearing 3 arranged at the outer side of the hole of the rotating shaft 2;
a substrate 5, as shown in fig. 3, the substrate 5 is fixedly arranged in the housing 1, one surface of the substrate 5 is provided with an arc-shaped resistance sheet 8, and the other surface of the conductive sheet 9 is provided with a wiring conductive sheet 10;
the rotating element 6 is fixedly provided with a first electric brush 11 and a second electric brush 12 which are used for connecting the resistor disc 8 and the conducting strip 9; the cut-in length of the resistive patches 8 and thus the voltage output electrical signal can be varied when the brushes are rotated on the resistive patches 8 and the conductive patches 9 by the rotating member 6.
The rotating shaft 2 and the rotating shaft 2 sequentially penetrate through the first bearing 3, the shell 1 and the second bearing 4 and then are fixedly connected with the rotating piece 6.
Preferably, as shown in fig. 3, the resistive sheet 8 includes a first resistive sheet 801 and a second resistive sheet 802, the conductive sheet 9 includes a first conductive sheet 901 and a second conductive sheet 902, the first resistive sheet 801 is connected to the first conductive sheet 901 through the first brush 11, and the second resistive sheet 802 is connected to the second conductive sheet 902 through the second brush 12.
Preferably, the cover plate 7 is formed by solidifying glue, and the inner wall of the lower end of the shell 1 is provided with a glue injection clamping groove 104 for preventing the glue from falling off. After the glue is solidified in the glue injection clamping groove 104, the side surface of the glue cover plate forms a clamping ring matched with the glue injection clamping groove 104, so that the direct connection strength of the glue cover plate 7 and the shell 1 is effectively improved.
Preferably, the side surface of the substrate 5 is provided with a limit protrusion 501, and the inside of the housing 1 is provided with a limit groove 103 into which the limit protrusion 501 can be inserted. The limiting protrusion 501 and the limiting groove 103 can further prevent the substrate 5 from rotating inside the housing 1.
Preferably, be equipped with the spacing ring that is used for preventing that first bearing 3 from deviating from on the pivot 2 side, pivot 2 passes first bearing 3, casing 1 and second bearing 4 in proper order and inserts 6 back spacing rings of rotating member and contradict with first bearing 3. During installation, the first bearing 3 is sleeved into the rotating shaft 2, and then the rotating shaft 2 is inserted into the shell 1, so that the structure is simple, and the installation is convenient.
Preferably, a bar-shaped connection hole 601 into which the rotation shaft 2 can be inserted is formed at the middle position of the rotation member 6.
Preferably, the rotating member 6 is provided with a clamping column for mounting the electric brush, the electric brush is fixedly connected with the turntable through the clamping column, and the electric brush is a hook-shaped electric brush. The hook-shaped electric brush is contacted with the resistor disc 8 through the V-shaped part, so that the damage to the resistor disc 8 after the electric brush slides and rubs on the resistor disc 8 for many times can be prevented, the stability of a product is improved, and the service life of the product is prolonged.
Preferably, as shown in fig. 3, a connection hole 502 is provided on the substrate 5, a conductive plating layer is provided on an inner wall of the connection hole 502, and the wiring conductive sheet 10 is connected to the conductive sheet 9 on the other surface of the substrate 5 through the connection hole 502. The wire is connected with the potentiometer through a wiring conducting strip 10, and the high-performance duplex potentiometer comprises 2 resistor strips 8 and 2 conducting strips 9.
Compared with the prior art, the utility model has the advantages of as follows: the high-performance duplex potentiometer can output two paths of signals simultaneously, the inner side and the outer side of the shell 1 are respectively provided with the first bearing 3 and the second bearing 4 which are used for being matched with the rotating shaft 2, friction of the rotating shaft 2 is greatly reduced, stability of a product is improved, and service life of the product is prolonged. The cover plate 7 is formed by glue solidification, and when the glue cover plate 7 is formed, an integrated snap ring matched with the glue injection clamping groove 104 is formed on the rear side surface, so that the direct connection strength of the glue cover plate 7 and the shell 1 is effectively improved.
The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present application, and these modifications and substitutions should also be regarded as the protection scope of the present application.
Claims (8)
1. A high performance twin potentiometer, comprising:
the bearing assembly comprises a shell, a first bearing and a second bearing, wherein a rotating shaft hole through which a rotating shaft can pass is formed in the middle position of the upper end of the shell, a cover plate is fixedly arranged at the lower end of the shell, a first accommodating cavity for mounting the first bearing is formed in the outer side of the rotating shaft hole, and a second accommodating cavity for mounting the second bearing is formed in the inner side of the rotating shaft hole;
the substrate is fixedly arranged in the shell, one surface of the substrate is provided with an arc-shaped resistance chip and a conducting chip, and the other surface of the substrate is provided with a wiring conducting chip;
the rotating piece is fixedly provided with a first electric brush and a second electric brush which are used for connecting the resistor disc and the conducting strip;
the rotating shaft sequentially penetrates through the first bearing, the shell and the second bearing and then is fixedly connected with the rotating piece.
2. The high-performance duplex potentiometer according to claim 1, wherein the resistive sheets comprise a first resistive sheet and a second resistive sheet, the conductive sheets comprise a first conductive sheet and a second conductive sheet, the first resistive sheet is connected with the first conductive sheet through a first brush, and the second resistive sheet is connected with the second conductive sheet through a second brush.
3. The high-performance duplex potentiometer according to claim 1, wherein the cover plate is formed by solidifying glue, and the inner wall of the lower end of the shell is provided with a glue injection clamping groove for preventing the glue from falling off.
4. A high performance duplex potentiometer according to claim 3, wherein the side surface of the base plate is provided with a limit protrusion, and the inside of the housing is provided with a limit groove into which the limit protrusion can be inserted.
5. The high-performance duplex potentiometer according to claim 1, wherein a limit ring for preventing the first bearing from coming off is arranged on the side surface of the rotating shaft, and the rotating shaft sequentially passes through the first bearing, the housing and the second bearing and is inserted into the rotating member, and then the limit ring is abutted against the first bearing.
6. The high-performance duplex potentiometer according to claim 1, wherein a strip-shaped connecting hole for inserting the rotating shaft is formed in the middle position of the rotating member.
7. A high-performance duplex potentiometer according to claim 2 or 6, characterized in that the rotating element is provided with a clamping column for mounting electric brushes, the electric brushes are fixedly connected with the turntable through the clamping column, and the electric brushes are hook-shaped electric brushes.
8. The high-performance duplex potentiometer according to claim 1, wherein the substrate is provided with a connecting hole, the inner wall of the connecting hole is provided with a conductive coating, and the wiring conductive piece is connected with the conductive piece on the other surface of the substrate through the connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221330816.7U CN217588577U (en) | 2022-05-30 | 2022-05-30 | High-performance duplex potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221330816.7U CN217588577U (en) | 2022-05-30 | 2022-05-30 | High-performance duplex potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217588577U true CN217588577U (en) | 2022-10-14 |
Family
ID=83527886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221330816.7U Active CN217588577U (en) | 2022-05-30 | 2022-05-30 | High-performance duplex potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217588577U (en) |
-
2022
- 2022-05-30 CN CN202221330816.7U patent/CN217588577U/en active Active
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