CN209785678U - Coaxial potentiometer - Google Patents
Coaxial potentiometer Download PDFInfo
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- CN209785678U CN209785678U CN201920893339.7U CN201920893339U CN209785678U CN 209785678 U CN209785678 U CN 209785678U CN 201920893339 U CN201920893339 U CN 201920893339U CN 209785678 U CN209785678 U CN 209785678U
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- potentiometer
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- electric brush
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Abstract
The utility model relates to a coaxial potentiometer, which comprises a potentiometer protection shell, wherein a resistance mechanism and a brush mechanism are arranged inside the potentiometer protection shell, the resistance mechanism comprises a circuit board arranged on one side of the potentiometer protection shell, an annular resistance plate is arranged on the surface of the circuit board, and a circular fixing shaft hole is arranged at the central position of the annular resistance plate; the electric brush mechanism comprises a fixed turntable arranged in the potentiometer protection shell, a rotary electric brush is arranged on the surface of the fixed turntable, and the tail end of the rotary electric brush is turned upwards; the center position of fixed carousel is provided with the rotation axis, the rotation axis with fixed carousel fixed connection, the rotation axis through set up in the inside motor drive of potentiometre. The utility model discloses an integrate the brush as a whole with rotatable parts, make the combination between brush mechanism and the resistance mechanism more stable, saved the use amount of raw materials, further reduction in production cost.
Description
Technical Field
The utility model belongs to the technical field of the potentiometre, concretely relates to coaxial potentiometre.
Background
The potentiometer is a resistance element which is provided with three leading-out terminals and the resistance value of which can be adjusted according to a certain change rule. Potentiometers are generally composed of a resistive body and a movable brush. When the brush moves along the resistor, a resistance value or a voltage having a certain relation with the displacement is obtained at the output end. A potentiometer is an adjustable electronic component. It is composed of a resistor body and a rotating or sliding system. When a voltage is applied between two fixed contacts of the resistor body, the position of the contact on the resistor body is changed through a rotating or sliding system, and a voltage which has a certain relation with the position of the moving contact can be obtained between the moving contact and the fixed contacts. It is mostly used as a voltage divider, when the potentiometer is a four-terminal element. The potentiometer is basically a slide rheostat, has several types, is generally used for adjusting the power of a sound box volume switch and a laser head, and is an adjustable electronic component. The existing potentiometer is shown in fig. 1, the electric brush and the resistor part are split, and the function of the potentiometer is realized after the electric brush and the rotating part are installed when the potentiometer is used, so that the whole potentiometer lacks stability due to the design. Therefore, it is of great economic, social and practical significance to develop a potentiometer device capable of improving the stability of the potentiometer and reducing the production cost.
SUMMERY OF THE UTILITY MODEL
The present invention aims to solve the above problems and provide a coaxial potentiometer with simple structure and reasonable design.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
A coaxial potentiometer comprises a potentiometer protection shell, wherein a resistance mechanism and an electric brush mechanism are arranged in the potentiometer protection shell, the resistance mechanism comprises a circuit board arranged on one side of the potentiometer protection shell, an annular resistance plate is arranged on the surface of the circuit board, and a circular fixing shaft hole is formed in the center of the annular resistance plate;
the electric brush mechanism comprises a fixed turntable arranged in the potentiometer protection shell, a rotary electric brush is arranged on the surface of the fixed turntable, and the tail end of the rotary electric brush is turned upwards;
The center position of fixed carousel is provided with the rotation axis, the rotation axis with fixed carousel fixed connection, the rotation axis through set up in the inside motor drive of potentiometre.
By adopting the technical scheme, the combination between the electric brush mechanism and the resistance mechanism is more stable, and the combination of the electric brush mechanism and the resistance mechanism saves the usage amount of raw materials to a certain extent, thereby further reducing the production cost.
As a further optimization scheme of the utility model, rotatory brush with detachable connection between the fixed carousel.
Through adopting above-mentioned technical scheme, the installation and the dismantlement of this rotatory brush of being convenient for, also the easy access.
as a further optimization scheme of the utility model, fixed carousel with the resistance plate on circuit board surface cooperatees, the rotation axis surface with the fixed shaft hole that resistance plate central point put mutually supports and contactless.
By adopting the technical scheme, one surface of the resistor plate of the circuit board is arranged on the fixed turntable, when the fixed turntable rotates, the rotating brush can be driven to rotate, and the rotating brush brushes on the surface of the resistor plate of the circuit board, so that the potentiometer works, and the resistance-changing function is realized.
The beneficial effects of the utility model reside in that: the utility model discloses an integrate brush and rotating part into a whole, make the combination between brush mechanism and the resistance mechanism more stable, and the two combination has also saved the use amount of raw materials to a certain extent, further reduction in production cost, in addition, the utility model has the advantages of simple structure, stability is high, reasonable in design, the realization of being convenient for.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
Fig. 2 is a schematic view of a brush position structure according to embodiment 2 of the present invention;
Fig. 3 is a schematic diagram of a resistor part structure according to embodiment 2 of the present invention.
In the figure: 1. a potentiometer protection housing; 2. a circuit board; 11. fixing the rotary table; 12. a rotating shaft; 13. rotating the brush; 14. a fixing bolt; 21. connecting the electric brush disc; 22. fixing the shaft hole; 23. a resistor plate.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
example 1
as shown in fig. 1, a potentiometer includes a potentiometer protection housing 1, a resistance mechanism and an electric brush mechanism are arranged inside the potentiometer protection housing 1, the resistance mechanism includes a circuit board 2 installed on one side of the potentiometer protection housing 1, an annular resistance plate 23 is arranged on the surface of the circuit board 2, the electric brush mechanism includes a connection electric brush disc 21 arranged on the surface of the resistance plate 23, a rotary electric brush 13 is arranged inside the connection electric brush disc 21, and a fixing shaft hole 22 is arranged at the central position of the surface of the connection electric brush disc 21; the electric brush mechanism further comprises a fixed turntable 11 arranged on the inner wall of the potentiometer protection shell 1, a rotating shaft 12 is arranged at the central position of the surface of the fixed turntable 11, the rotating shaft 12 is driven by a motor arranged in the potentiometer, the rotating shaft 12 is matched with the fixed shaft hole 22, a connecting electric brush disc 21 on the circuit board 2 is sleeved on the fixed turntable 11, and through the matching between the rotating shaft 12 and the fixed shaft hole 22, the rotating shaft 12 is rotated to drive the connecting electric brush disc 21 to rotate, so that an electric brush in the connecting electric brush disc 21 brushes on a resistor plate 23 on the surface of the circuit board 2, the potentiometer works, and the resistance changing function is realized.
Example 2
As shown in fig. 2-3, a coaxial potentiometer, which is improved correspondingly on the basis of embodiment 1, includes a potentiometer protection housing 1, a resistance mechanism and a brush mechanism are disposed inside the potentiometer protection housing 1, the resistance mechanism includes a circuit board 2 disposed on one side of the potentiometer protection housing 1, an annular resistance plate 23 is disposed on the surface of the circuit board 2, and a circular fixing shaft hole 22 is disposed at the center position of the annular resistance plate 23; the electric brush mechanism comprises a fixed turntable 11 arranged in the potentiometer protection shell 1, a rotary electric brush 13 is arranged on the surface of the fixed turntable 11, the rotary electric brush 13 is detachably connected with the fixed turntable 11, the rotary electric brush 13 is convenient to mount and dismount, the maintenance is convenient, and the tail end of the rotary electric brush 13 is turned upwards; the central point of fixed carousel 11 puts and is provided with rotation axis 12, rotation axis 12 with fixed carousel 11 fixed connection, rotation axis 12 through set up in the inside motor drive of potentiometre, through the rotation of rotation axis 12 drive the rotation of fixed carousel 11, and then make the rotatory brush 13 in the fixed carousel 11 rotate.
The fixed turntable 11 is matched with the resistor plate 23 on the surface of the circuit board 2, the surface of the rotating shaft 12 is matched with and does not contact with the fixed shaft hole 22 in the center position of the resistor plate 23, one surface of the resistor plate 23 of the circuit board 2 is installed on the fixed turntable 11, when the fixed turntable 11 rotates, the rotating brush 13 is driven to rotate, and the rotating brush 13 brushes on the surface of the resistor plate 23 of the circuit board 2, so that the potentiometer works, and the resistance varying function is realized. The utility model discloses improve on the basis of the cooperation formula potentiometre of embodiment 1, integrate brush and rotating part as a whole, make the combination between brush mechanism and the resistance mechanism more stable, and the use amount of raw materials has also been saved to a certain extent in the combination of the two, further reduction in production cost.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (3)
1. the utility model provides a coaxial potentiometre, includes potentiometre protection casing (1), inside resistance mechanism and the brush mechanism of being provided with of potentiometre protection casing (1), its characterized in that: the resistor mechanism comprises a circuit board (2) arranged on one side of a potentiometer protection shell (1), an annular resistor plate (23) is arranged on the surface of the circuit board (2), and a circular fixing shaft hole (22) is formed in the center of the annular resistor plate (23);
The electric brush mechanism comprises a fixed turntable (11) arranged in the potentiometer protection shell (1), a rotary electric brush (13) is arranged on the surface of the fixed turntable (11), and the tail end of the rotary electric brush (13) is turned upwards;
The center position of fixed carousel (11) is provided with rotation axis (12), rotation axis (12) with fixed carousel (11) fixed connection, rotation axis (12) through set up in the inside motor drive of potentiometre.
2. A coaxial potentiometer according to claim 1, wherein: the rotating electric brush (13) is detachably connected with the fixed turntable (11).
3. a coaxial potentiometer according to claim 1, wherein: the fixed turntable (11) is matched with a resistor plate (23) on the surface of the circuit board (2), and the surface of the rotating shaft (12) is matched with a fixed shaft hole (22) in the center of the resistor plate (23) and is not contacted with the resistor plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893339.7U CN209785678U (en) | 2019-06-12 | 2019-06-12 | Coaxial potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893339.7U CN209785678U (en) | 2019-06-12 | 2019-06-12 | Coaxial potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209785678U true CN209785678U (en) | 2019-12-13 |
Family
ID=68788910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920893339.7U Active CN209785678U (en) | 2019-06-12 | 2019-06-12 | Coaxial potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209785678U (en) |
-
2019
- 2019-06-12 CN CN201920893339.7U patent/CN209785678U/en active Active
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