CN214588276U

CN214588276U - Potentiometer structure with multi-position adjustment

Info

Publication number: CN214588276U
Application number: CN202120781156.3U
Authority: CN
Inventors: 刘晟睿
Original assignee: Favor Electronics Dongguan Co ltd
Current assignee: Favor Electronics Dongguan Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-11-02
Anticipated expiration: 2031-04-15

Abstract

The utility model provides a potentiometer structure with multi-position adjustment, wherein one side of an insulating seat is provided with a rotating groove, the bottom of the rotating groove is provided with a buckling hole, the bottom of the rotating groove is provided with a limit convex ring, and one side of the limit convex ring, which is close to the opening of the rotating groove, is provided with m clamping grooves; a resistance card is fixed in the insulating seat, a protection abdicating hole is arranged in the resistance card, and a conductive elastic sheet is connected on the resistance card in a sliding way; one side that resistance card was kept away from to electrically conductive shell fragment is equipped with the turning block, and the turning block has the elastic layer all around to cover, and the surface covering of elastic layer has the lubricant film, and turning block one side is equipped with first boss, and roll connection has a n ball on one side of the first boss, and each ball is located each screens groove, and one side that the turning block was kept away from to first boss is equipped with the second boss, and one side that the turning block was kept away from to the second boss is equipped with two buckles. The utility model discloses a long service life can form obvious feedback effect for the user, and the regulation degree of accuracy is high, adjusts and feels.

Description

Potentiometer structure with multi-position adjustment

Technical Field

The utility model relates to a potentiometre specifically discloses a potentiometre structure of many regulations.

Background

A potentiometer is a resistive element with three terminals and a resistance value adjustable according to a certain variation law, and is generally composed of a resistive body and a movable brush, and when the brush moves along the resistive body, a resistance value or a voltage in a certain relation to a displacement is obtained at an output terminal. Potentiometers function in a circuit to obtain an output voltage that has a relationship to an input voltage and are therefore referred to as potentiometers.

Among the prior art, the potentiometre mainly includes insulator bracket, resistance card and brush, and in the potentiometre of rotation regulation, the brush has the axis of rotation that passes the resistance card setting usually, and at the accommodation process, the axis of rotation causes wearing and tearing to the resistance card easily, and the piece that wearing and tearing formed makes the potentiometre adjust and forms great error easily, and in addition, the potentiometre among the prior art is adjusted and is felt relatively poor, and the regulating effect is not good.

SUMMERY OF THE UTILITY MODEL

Therefore, the potentiometer structure capable of being adjusted in multiple positions is needed to be provided for solving the problems in the prior art, the overall structure is stable and reliable, the adjustment hand feeling is good, and the adjustment error is small.

In order to solve the prior art problem, the utility model discloses a potentiometer structure with multi-position adjustment, which comprises an insulating seat, wherein one side of the insulating seat is provided with a round rotating groove, the bottom of the rotating groove is provided with a buckling hole, the bottom of the rotating groove is also provided with a limit convex ring surrounding the buckling hole, one side of the limit convex ring close to the opening of the rotating groove is provided with m clamping grooves which are arranged at equal intervals, m is an integer larger than 1, and the clamping grooves are hemispherical;

a resistance card is fixed in the insulating seat, a protection abdicating hole is formed in the resistance card, the limiting convex ring is positioned in the protection abdicating hole, a conductive elastic sheet is connected to the resistance card in a sliding manner, and a positioning hole is formed in the conductive elastic sheet;

one side that the resistance card was kept away from to electrically conductive shell fragment is equipped with the turning block, the turning block rotates to be connected in rotating the groove, the peripheral cover of turning block has the elastic layer, the surface covering of elastic layer has the lubricant film, the lubricant film contacts with the lateral wall that rotates the groove, one side that the turning block is close to the resistance card is equipped with first boss, one side roll connection that first boss is close to spacing bulge loop has a plurality of balls of n, n is the positive integer, n is not more than m, each ball is located each screens groove, one side that the turning block was kept away from to first boss is equipped with the second boss, the second boss rotates to be connected in spacing bulge loop and knot hole, one side that the turning block was kept away from to the second boss is equipped with two buckles, the buckle screens is kept away from one side of turning block in the insulator seat, one side that the turning block was kept away from and is close to the resistance card still is equipped with the reference column, the reference column is located the locating hole.

Furthermore, one side of the insulating base, which is far away from the rotating block, is provided with a scraping prevention ring, the scraping prevention ring surrounds outside the buckling hole, and the buckling position is arranged on the surface of the scraping prevention ring.

Furthermore, the scraping-proof ring is a graphite ring.

Further, the elastic layer is a rubber layer or a silica gel layer.

Further, the lubricating layer is a graphite layer or a PTFE layer.

Furthermore, be equipped with the first elasticity hole of stepping down that runs through second boss, first boss and turning block between two buckles, one side that first elasticity hole of stepping down was kept away from to the buckle is equipped with the second elasticity hole of stepping down that runs through first boss and turning block.

The utility model has the advantages that: the utility model discloses a potentiometre structure of many regulations, overall structure is reliable and stable, the wearing and tearing of inside formation are little, be difficult for forming the piece and influence the regulation precision, and overall structure's long service life, the ball can form multistage position control's effect with the screens groove, can form obvious feedback effect for the user, adjusting error is little, the regulation degree of accuracy is high, furthermore, the elastic layer and the lubricating layer of turning block outer formation can further improve the feedback effect to the user, can also ensure the smooth and easy nature of regulation, adjust and feel, user's use is experienced.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic cross-sectional view along a-a' in fig. 2.

Fig. 4 is an exploded schematic view of the present invention.

Fig. 5 is an exploded view of the present invention from another perspective.

The reference signs are: the anti-scraping device comprises an insulating base 10, a rotating groove 11, a buckling hole 12, a limiting convex ring 13, an anti-scraping ring 14, a clamping groove 131, a resistor disc 20, a protection abdicating hole 21, a conductive elastic sheet 30, a positioning hole 31, a rotating block 40, an elastic layer 41, a lubricating layer 42, a first boss 43, a ball 431, a second boss 44, a buckle 45, a first elastic abdicating hole 451, a second elastic abdicating hole 452 and a positioning column 46.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Refer to fig. 1 to 5.

The embodiment of the utility model discloses a many adjustable potentiometre structure, including insulating seat 10, one side of insulating seat 10 is equipped with the opening and is the circular shape and rotates groove 11, the tank bottom department that rotates groove 11 is equipped with circular shape and detains hole 12, the tank bottom department that rotates groove 11 still is equipped with the spacing bulge loop 13 around detaining hole 12 outside, the inner radius of spacing bulge loop 13 equals with the radius of detaining hole 12 promptly, spacing bulge loop 13 is ring shape, preferably, spacing bulge loop 13 is the integrated into one piece structure with insulating seat 10, the one side that spacing bulge loop 13 is close to rotating groove 11 opening is equipped with m screens groove 131 that equidistant setting, m is the integer that is greater than 1, screens groove 131 is hemispherical;

a resistor disc 20 is fixed in the insulating base 10, preferably, the insulating base 10 is injection-molded and encapsulated outside the resistor disc 20, a circular protection abdicating hole 21 is formed in the resistor disc 20, the limit convex ring 13 is located in the protection abdicating hole 21, preferably, the radius of the protection abdicating hole 21 is equal to the outer radius of the limit convex ring 13, the thickness of the limit convex ring 13 is greater than that of the resistor disc 20, so that the protection effect of the limit convex ring on the resistor disc 20 can be ensured, the potential regulation effect of the resistor disc 20 is prevented from being influenced by debris formed by abrasion of the rotating block 40 on the resistor disc 20, an annular conductive elastic sheet 30 is slidably connected onto the resistor disc 20, the conductive elastic sheet 30 is also called a folding rotor, the conductive elastic sheet 30 is located on one side of the resistor disc 20 away from the buckling hole 12, and a positioning hole 31 is formed in the conductive elastic sheet 30;

the side, far away from the resistor disc 20, of the conductive elastic sheet 30 is provided with a rotating block 40, the rotating block 40 is rotatably connected in a rotating groove 11, the peripheral side surface of the rotating block 40 is covered with an elastic layer 41, the surface of the elastic layer 41 is covered with a lubricating layer 42, the lubricating layer 42 is in contact with the side wall of the rotating groove 11, the feedback pause effect when the rotating block 40 is adjusted to rotate can be effectively improved through the elastic layer 41, the smoothness when the rotating block 40 rotates can be effectively improved through the lubricating layer 42, the hand feeling when a user uses a potentiometer can be obviously improved, one side, close to the resistor disc 20, of the rotating block 40 is provided with a first boss 43, one side, close to the limiting convex ring 13, of the first boss 43 is in rolling connection with n balls 431, namely the surface of the first boss 43 is provided with n spherical limiting cavities, a part of which is cut off, one ball 431 is limited in each limiting cavity, the ball 431 can roll in the limiting cavities, and n is a positive integer, n is less than or equal to m, each ball 431 is respectively located in each clamping groove 131, preferably, the diameter of each ball 431 is equal to that of each clamping groove 131, a second boss 44 is arranged on one side, away from the rotating block 40, of the first boss 43, the second boss 44 is a cylinder, the axis of the second boss 44 penetrates through the center of the first boss 43, the second boss 44 is rotatably connected in the limiting convex ring 13 and the buckling hole 12, two opposite buckles 45 are arranged on one side, away from the rotating block 40, of the second boss 44, the buckles 45 are clamped on one side, away from the rotating block 40, of the insulating base 10, a positioning column 46 is further arranged on one side, away from the resistive sheet 20, of the rotating block 40, and the positioning column 46 is located in the positioning hole 31.

When the adjusting rotating block 40 is used, the adjusting rotating block 40 can drive the conductive elastic sheet 30 to slide on the resistance sheet 20, so that the output resistance is adjusted, the first boss 43 rotates along with the rotating block 40, when the first boss rotates by a specific angle, namely the central angle corresponding to two adjacent clamping grooves 131, the ball 431 is separated from the original clamping groove 131 and reaches one clamping groove 131 adjacent to the ball 431, the multi-stage adjusting effect can be formed, the adjusting accuracy can be effectively improved due to the positioning effect of the clamping groove 131 on the ball 431, the feedback effect formed for a user can be effectively improved in the adjusting process, and the adjusting hand feeling is good; the elastic layer 41 on the peripheral side of the rotating block 40 can effectively adjust the resistance formed when the rotating block 40 rotates, the feedback effect on a user can be effectively improved, the lubricating layer 42 is matched to effectively avoid the rotating block 40 from forming large blocking when rotating, the adjustment is smooth, the hand feeling formed for the user is good, the abrasion between the rotating block 40 and the rotating groove 11 can be effectively reduced, and the service life of the whole structure can be effectively prolonged.

The utility model discloses can be applied to the brush part of rocker, also can add the apron and adjust the pole and use as independent rotatory potentiometre.

In this embodiment, one side that the turning block 40 was kept away from to insulator 10 is equipped with prevents scraping ring 14, and preferably, prevents that scraping ring 14 is the ring, prevents that scraping ring 14 surrounds outside detaining hole 12, and buckle 45 screens is on preventing scraping ring 14's surface, can effectively improve buckle 45 pivoted smoothness nature, can effectively reduce the wearing and tearing between buckle 45 and the insulator 10 simultaneously, can effectively prolong overall structure's life.

Based on the above embodiment, the scratch-resistant ring 14 is a graphite ring, the graphite has good lubricity and wear resistance, and the scratch-resistant ring 14 may also be a ceramic ring.

In the present embodiment, the elastic layer 41 is a rubber layer or a silicone layer.

In the present embodiment, the lubricating layer 42 is a graphite layer or a PTFE layer.

In this embodiment, be equipped with the first elasticity that runs through second boss 44, first boss 43 and rotating block 40 between two buckles 45 and step down hole 451, buckle 45 is located the surface edge of second boss 44, one side that first elasticity stepped down hole 451 was kept away from to every buckle 45 all is equipped with the second elasticity that runs through first boss 43 and rotating block 40 and steps down hole 452, can effectively improve the elasticity of buckle 45 activity, avoid the structure to take place to damage because of elasticity is not enough in the equipment process, m is n +2 this moment, the setting of ball 431 is omitted in the position of second elasticity stepped down hole 452.

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. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The potentiometer structure capable of being adjusted in multiple positions is characterized by comprising an insulating base (10), wherein a circular rotating groove (11) is formed in one side of the insulating base (10), a buckling hole (12) is formed in the groove bottom of the rotating groove (11), a limiting convex ring (13) surrounding the buckling hole (12) is further arranged at the groove bottom of the rotating groove (11), m clamping grooves (131) which are arranged at equal intervals are formed in one side, close to the opening of the rotating groove (11), of the limiting convex ring (13), m is an integer larger than 1, and the clamping grooves (131) are hemispherical;

a resistor disc (20) is fixed in the insulating seat (10), a protection abdicating hole (21) is formed in the resistor disc (20), the limiting convex ring (13) is located in the protection abdicating hole (21), a conductive elastic sheet (30) is connected onto the resistor disc (20) in a sliding mode, and a positioning hole (31) is formed in the conductive elastic sheet (30);

a rotating block (40) is arranged on one side, away from the resistor disc (20), of the conductive elastic sheet (30), the rotating block (40) is rotatably connected into the rotating groove (11), an elastic layer (41) covers the periphery of the rotating block (40), a lubricating layer (42) covers the surface of the elastic layer (41), the lubricating layer (42) is in contact with the side wall of the rotating groove (11), a first boss (43) is arranged on one side, close to the resistor disc (20), of the rotating block (40), one side, close to the limiting convex ring (13), of the first boss (43) is in rolling connection with n balls (431), n is a positive integer and is not more than m, each ball (431) is located in each clamping groove (131), a second boss (44) is arranged on one side, away from the rotating block (40), of the first boss (43), and the second boss (44) is rotatably connected to the limiting convex ring (13) and the buckling hole (12), one side of the second boss (44) far away from the rotating block (40) is provided with two buckles (45), the buckles (45) are clamped on one side of the insulating base (10) far away from the rotating block (40), one side of the rotating block (40) far away from the resistor disc (20) is further provided with a positioning column (46), and the positioning column (46) is located in the positioning hole (31).

2. A multi-position adjustable potentiometer structure according to claim 1, characterized in that a side of the insulating base (10) away from the rotating block (40) is provided with a scratch prevention ring (14), the scratch prevention ring (14) surrounds the buckling hole (12), and the buckle (45) is clamped on the surface of the scratch prevention ring (14).

3. A multi-position adjustable potentiometer structure according to claim 2, characterized in that the anti-scraping ring (14) is a graphite ring.

4. A multi-position adjustable potentiometer structure according to claim 1, characterized in that the elastic layer (41) is a rubber layer or a silicone layer.

5. A multi-position adjustable potentiometer structure according to claim 1 or 4, characterized in that the lubricating layer (42) is a graphite layer or a PTFE layer.

6. A multi-position adjustable potentiometer structure according to claim 1, characterized in that a first elastic yielding hole (451) passing through the second boss (44), the first boss (43) and the rotating block (40) is formed between the two buckles (45), and a second elastic yielding hole (452) passing through the first boss (43) and the rotating block (40) is formed on one side of the buckle (45) far away from the first elastic yielding hole (451).