CN213988459U - Stability potentiometer - Google Patents
Stability potentiometer Download PDFInfo
- Publication number
- CN213988459U CN213988459U CN202022815368.7U CN202022815368U CN213988459U CN 213988459 U CN213988459 U CN 213988459U CN 202022815368 U CN202022815368 U CN 202022815368U CN 213988459 U CN213988459 U CN 213988459U
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- Prior art keywords
- piece
- brush
- pivot
- brush piece
- hole
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- 238000001746 injection moulding Methods 0.000 claims abstract description 21
- 238000000465 moulding Methods 0.000 claims abstract description 19
- 239000004033 plastic Substances 0.000 claims abstract description 19
- 229920003023 plastic Polymers 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 abstract description 5
- 239000002991 molded plastic Substances 0.000 abstract description 3
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a resistor technical field indicates a stability potentiometre especially, including resistive element and brush subassembly, the brush subassembly includes brush piece and pivot, and the brush piece is equipped with the hole of moulding plastics, and injection moulding's mode and brush piece fixed connection are passed through in the pivot to the hole of moulding plastics is filled in the pivot embedding. The utility model discloses simple structure, the pivot of its brush subassembly is moulded plastics with the brush piece and is connected, is equipped with the hole of moulding plastics through the junction of moulding plastics at the brush piece for the pivot can fill the parcel and live this hole of moulding plastics when injection moulding, thereby makes the pivot more firm with being connected of brush piece, and at pivot pivoted in-process, the brush piece neither drops easily, and rotates more stably, thereby has improved regulation precision and increase of service life.
Description
Technical Field
The utility model relates to a resistor technical field indicates a stability potentiometre especially.
Background
The basic working principle of the resistor is that the change of physical quantity is converted into the change of stress of the sensitive element, so that the resistance value of the resistor is changed, and the change is converted into a corresponding electric signal through a conversion circuit to be output, thereby achieving the purpose of electric measurement.
A potentiometer is a kind of variable resistor, which has three terminals and a resistance element with a resistance value adjustable according to a certain variation rule, and is generally composed of a resistor body and a movable brush, and when the brush moves along the resistor body, a resistance or a voltage in a certain relation with a displacement is obtained at an output terminal. The potentiometer in the prior art has a simple and crude structure, and the structure of the potentiometer is easily damaged due to excessive adjustment, so that the resistance value is unstable and the adjustment of the resistance value has errors in the adjustment and use process of the potentiometer.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a stability potentiometre, the structure is firm to adjustment accuracy and increase of service life have been improved.
In order to achieve the above object, the utility model provides a technical scheme provide a stability potentiometre, including resistive element and brush subassembly, the brush subassembly includes brush piece and pivot, the brush piece is equipped with the hole of moulding plastics, the pivot through injection moulding's mode with brush piece fixed connection, and the pivot embedding is filled the hole of moulding plastics.
As a preferred scheme, the electric brush piece includes the annular connection piece, the annular connection piece symmetry is equipped with connecting portion, connecting portion have a plurality of the hole of moulding plastics.
As a preferred scheme, the electric brush piece further comprises an inner arc-shaped sliding piece and an outer arc-shaped sliding piece which are oppositely arranged, two ends of the inner arc-shaped sliding piece are connected with the connecting portion, and two ends of the outer arc-shaped sliding piece are connected with the connecting portion.
As a preferred scheme, the rotating shaft is symmetrically provided with injection molding parts along the circumferential direction of the rotating shaft, and the injection molding parts wrap the connecting parts and fill the injection molding holes.
Preferably, the resistor body includes a body, a case, and a resistor sheet, the resistor sheet is disposed on the body, and the case is connected to the body and covers the resistor sheet.
Preferably, the resistor body has a guide hole penetrating through the body, the resistor disc and the housing, the shaft is rotatably connected to the guide hole, and the brush disc is in contact with the resistor disc.
As a preferable scheme, the housing is provided with a boss coaxial with the guide hole, and the brush sheet covers the boss.
As a preferable scheme, the resistor disc is provided with three pins, and the pins extend out of the body.
The beneficial effects of the utility model reside in that:
the utility model discloses simple structure, the pivot of its brush subassembly is moulded plastics with the brush piece and is connected, is equipped with the hole of moulding plastics through the junction of moulding plastics at the brush piece for the pivot can fill the parcel and live this hole of moulding plastics when injection moulding, thereby makes the pivot more firm with being connected of brush piece, and at pivot pivoted in-process, the brush piece neither drops easily, and rotates more stably, thereby has improved regulation precision and increase of service life.
Drawings
Fig. 1 is a schematic structural diagram of a stability potentiometer according to the present invention.
Fig. 2 is an exploded schematic view of the stability potentiometer of the present invention.
Fig. 3 is a schematic cross-sectional view of the stability potentiometer according to the present invention.
Fig. 4 is a schematic structural diagram of the housing of the present invention.
Fig. 5 is a schematic structural view of the brush sheet of the present invention.
The reference numbers illustrate: 10-a brush sheet; 11-a ring-shaped connecting piece; 12-inner arc slide plate; 13-outer arc shaped slides; 14-a connecting portion; 15-injection molding holes;
20-a rotating shaft; 21-an injection molding part;
30-a body;
40-a housing; 41-boss;
50-resistor disc; 51-pin.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 3, the present invention relates to a stability potentiometer, which includes a resistor and a brush assembly, the brush assembly includes a brush piece 10 and a rotating shaft 20, the brush piece 10 is provided with an injection molding hole 15, the rotating shaft 20 is fixedly connected to the brush piece 10 by injection molding, and the injection molding hole 15 is filled by the rotating shaft 20.
The utility model discloses simple structure, the pivot 20 of its brush subassembly is moulded plastics with brush piece 10 and is connected, the junction of moulding plastics through at brush piece 10 is equipped with the hole 15 of moulding plastics, make pivot 20 can pack the parcel and live this hole 15 of moulding plastics when injection moulding, thereby make pivot 20 more firm with being connected of brush piece 10, at pivot 20 pivoted in-process, brush piece 10 neither drops easily, and it is more stable to rotate, thereby has improved regulation precision and increase of service life.
Specifically, the resistor body comprises a body 30, a shell 40 and a resistor disc 50, the resistor disc 50 is arranged on the body 30, the shell 40 is connected with the body 30 and covers the resistor disc 50, the resistor disc 50 is provided with three pins 51, and the pins 51 extend out of the body 30; the resistor body is provided with a guide hole penetrating through the body 30, the resistance sheet 50 and the housing 40, the rotating shaft 20 is rotatably connected in the guide hole, and the brush piece 10 is in contact connection with the resistance sheet 50. The brush piece 10 is driven by the rotating shaft 20 to rotate, so that the brush piece and the resistance piece 50 rotate relatively to obtain a resistance or a voltage which has a certain relation with displacement.
As shown in fig. 4, the housing 40 is provided with a boss 41 coaxial with the guide hole, the brush piece 10 covers the boss 41, and the injection molding portion 21 of the rotating shaft 20 also covers the boss 41, so that when the rotating shaft 20 drives the brush piece 10 to rotate, the rotating shaft 20 can be balanced, and the brush piece 10 can be prevented from swinging up and down too much.
Since the resistor body and the resistor sheet 50 are common constituent structures in potentiometers, the specific structure thereof will not be described in detail.
As shown in fig. 5, the brush piece 10 includes an annular connecting piece 11, an inner arc-shaped sliding piece 12 and an outer arc-shaped sliding piece 13 which are oppositely arranged, the annular connecting piece 11 is symmetrically provided with connecting portions 14, two ends of the inner arc-shaped sliding piece 12 are connected with the connecting portions 14, and two ends of the outer arc-shaped sliding piece 13 are connected with the connecting portions 14; the connecting portion 14 has a plurality of injection molding hole 15, pivot 20 is equipped with the portion of moulding plastics 21 along its circumference symmetry, when the portion of moulding plastics 21 and brush piece 10 injection moulding, the parcel is lived connecting portion 14 and is filled injection molding hole 15.
Two arc slides of brush piece 10 play the brush effect, and annular connection piece 11 mainly plays and connects two arc slides and connect pivot 20 effect, through being equipped with two connecting portion 14 at annular connection piece 11 symmetry, and two arc slides are the symmetry setting equally, makes brush piece 10 when rotating like this, and its atress is even, makes the brush subassembly more balanced at the rotation in-process.
The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.
Claims (8)
1. A stability potentiometer, comprising a resistor body and a brush assembly, characterized in that: the brush subassembly includes brush piece and pivot, the brush piece is equipped with the hole of moulding plastics, the pivot through injection moulding's mode with brush piece fixed connection, and the pivot embedding is filled the hole of moulding plastics.
2. The stability potentiometer according to claim 1, wherein: the electric brush piece includes the annular connection piece, the annular connection piece symmetry is equipped with connecting portion, connecting portion have a plurality ofly the hole of moulding plastics.
3. The stability potentiometer according to claim 2, wherein: the electric brush piece is characterized by further comprising an inner arc-shaped sliding piece and an outer arc-shaped sliding piece which are arranged oppositely, the two ends of the inner arc-shaped sliding piece are connected with the connecting portion, and the two ends of the outer arc-shaped sliding piece are connected with the connecting portion.
4. The stability potentiometer according to claim 2, wherein: the rotating shaft is symmetrically provided with injection molding parts along the circumferential direction of the rotating shaft, and the injection molding parts wrap the connecting parts and fill the injection molding holes.
5. The stability potentiometer according to claim 1, wherein: the resistor body comprises a body, a shell and a resistor disc, the resistor disc is arranged on the body, and the shell is connected with the body and covers the resistor disc.
6. The stability potentiometer according to claim 5, wherein: the resistor body penetrates through the body, the resistor disc and the shell to be provided with a guide hole, the rotating shaft is rotatably connected in the guide hole, and the electric brush disc is in contact connection with the resistor disc.
7. The stability potentiometer according to claim 6, wherein: the shell is provided with a boss which is coaxial with the guide hole, and the electric brush piece covers the boss.
8. The stability potentiometer according to claim 5, wherein: the resistance card is provided with three pins, and the pins extend out of the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022815368.7U CN213988459U (en) | 2020-11-27 | 2020-11-27 | Stability potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022815368.7U CN213988459U (en) | 2020-11-27 | 2020-11-27 | Stability potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213988459U true CN213988459U (en) | 2021-08-17 |
Family
ID=77269068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022815368.7U Active CN213988459U (en) | 2020-11-27 | 2020-11-27 | Stability potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213988459U (en) |
-
2020
- 2020-11-27 CN CN202022815368.7U patent/CN213988459U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |