Rocker potentiometer

Abstract

The utility model provides a rocker potentiometer which comprises an upper cover, a rocker structure, a compression ring, a spring, a bottom cover, a circuit board and two electric brushes, electric brush pressing parts are formed on the sides, corresponding to electric brushes, of the upper rocker arm and the lower rocker arm respectively, the lower surfaces of the electric brush pressing parts are arc-shaped surfaces, limiting baffles are formed on the lower surfaces of the electric brush pressing parts, and limiting grooves are formed in the lower portions of the limiting baffles; a T-shaped limiting groove is formed in the position, corresponding to the electric brush, of the upper cover, a strip-shaped clamping groove is formed in the position, corresponding to the upper cover, of the bottom cover, a supporting boss is formed in the position, corresponding to the opening side of the T-shaped limiting groove, of the strip-shaped clamping groove, and an electric brush containing space is formed between the upper cover and the limiting baffle. And the resistance value output by the resistor disc is changed by adopting a pressing type structure, so that the service life is prolonged on the basis of ensuring the control sensitivity and the control precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to potentiometer technical field, concretely relates to a rocker potentiometer. BACKGROUND

[0002] The utility model discloses a rocker potentiometer, including body, upper rocker arm, lower rocker arm, rocker, sliding block, sliding disc, FPC soft board, spring and fixed support, the body downside is equipped with cavity, guide foot and sliding slot, and the rocker passes through the body and is connected with upper rocker arm and lower rocker arm, one end of upper rocker arm and lower rocker arm is connected with the sliding block, and the sliding block slidingly installs in the sliding slot, and the lower rocker arm is integrally connected with the pressing block, the sliding disc installs in the lower rocker arm downside, and the sliding disc side is connected with the guide strip of sliding cooperation with guide foot, and the FPC soft board is equipped with resistance sheet, button and wire, and the sliding block is equipped with the brush, and the brush is in contact with resistance sheet cooperation, and the pressing block is pressed with button cooperation, and the wire is laterally extended fixed support, and the spring upper end is in contact with the sliding disc, and the spring lower end passes through spring hole and is in contact with fixed support. The utility model discloses upper rocker arm and lower rocker arm swing, and the stability of lifting is good, and lower rocker arm and pressing block are integrally connected, and the manufacture and assembly are lower, and the pressing button sensitivity is high. Among them, one end of the upper rocker arm is provided with a first toggle, the sidewall of the first sliding block is provided with a first toggle connecting groove, and the first toggle is detachably connected with the first toggle connecting groove of the first sliding block. One end of the lower rocker arm is provided with a second toggle, the sidewall of the second sliding block is provided with a second toggle connecting groove, and the second toggle is detachably connected with the second toggle connecting groove of the second sliding block. When the rocker drives the upper rocker arm and the lower rocker arm to swing in different directions, the sliding block is driven to slide through the toggle, and the brush is driven to brush to change the resistance value of the resistance sheet output, realizing the sensing of the displacement control signal in different directions. In the actual operation process, the existing technology has the following defects: the toggle and the sliding block are in contact multiple times, and both the toggle and the sliding block have a large degree of mode, which directly affects the sensitivity of operation and control, thereby affecting the operation and control precision. In view of this situation, it is urgent to improve. UTILITY MODEL CONTENTS

[0003] In view of the above problems, the utility model provides a rocker potentiometer, which changes the resistance value of the resistance sheet output by adopting a pressing structure, ensures the sensitivity and precision of operation and control, and also improves the service life.

[0004] The utility model discloses a rocker potentiometer, including upper cover, rocker structure, pressure ring, spring, bottom cover, circuit board, two electric brushes, the upper cover covers and is established in bottom cover forms the installation space, the circuit board is installed in the bottom of installation space and with bottom cover fixed connection, the spring sets up in installation space and is located the top of circuit board, the pressure ring corresponds to set up the upper surface of spring, the lower part of rocker structure extends into installation space with pressure ring and is opposite and contacts, two electric brushes set up in installation space, the circuit board with two electric brush corresponding position is provided with the carbon film resistance sheet that cooperates with electric brush, the middle part of circuit board is provided with the nest piece button that cooperates with the coaxial heart of rocker structure, the rocker structure includes rocker body, upper swing arm, lower swing arm, the lower swing arm is seted up with the guide groove that cooperates with the bottom of rocker body, and the upper swing arm is seted up with the guide hole, and the upper swing arm sets up in the upper of lower swing arm and constitutes vertical relation, and the lower part of rocker body penetrates the guide hole and extends into the guide groove with the pivot connection, the upper swing arm with lower swing arm all with the upper surface of pressure ring are pasted and contact, the electric brush includes mounting seat and fixed mounting in the bottom contact terminal of mounting seat, and the lower surface of contact terminal extends the lower surface of mounting seat, the circuit board is riveted with the pin, and the pin penetrates bottom cover and extends out bottom cover,

[0005] The lower surface of the brush pressing portion is provided as an arc surface, and the lower surface of the brush pressing portion forms a limiting baffle, and the lower part of the limiting baffle is provided with a limiting groove. The upper cover is provided with a T-shaped limiting groove at a position corresponding to the electric brush, the bottom cover is provided with a strip-shaped clamping groove at a position corresponding to the upper cover, a supporting boss is formed at a position corresponding to the opening side of the T-shaped limiting groove, the upper cover and the limiting baffle form an electric brush storage space, the mounting seat is provided with a first limiting protruding portion corresponding to the limiting groove on one side of the limiting baffle, and the other side of the mounting seat is provided with a second limiting protruding portion corresponding to the upper part of the T-shaped limiting groove. The width and length of the upper part of the T-shaped limiting groove are greater than the width of the second limiting protruding portion, and the contact terminal is in contact with the carbon film resistance sheet. In actual operation, the rocker structure is rotated to apply pressure to the two electric brushes, and the distance formed by the contact terminal on the carbon film resistance sheet realizes the output of the resistance value.

[0006] The upper cover and the brush pressing part correspond to the position of the limiting hole, and the free end of the brush pressing part of the upper rocker arm and the lower rocker arm is arranged through the limiting hole; the side of the upper rocker arm and the lower rocker arm opposite to the brush pressing part is movably embedded between the upper cover and the bottom cover.

[0007] Preferably, the middle part of the upper surface of the bottom cover corresponds to the position of the spring limiting arc-shaped limiting boss of the nest piece button, the arc-shaped limiting boss penetrates the circuit board and extends above the circuit board.

[0008] Preferably, the upper surface of the circuit board and the position corresponding to the nest piece button are attached with a transparent adhesive film, and the transparent adhesive film is bonded and fixed with the nest piece button.

[0009] Preferably, the periphery of the upper cover is provided with a plurality of buckle hole parts, and the periphery of the bottom cover is provided with a plurality of buckle blocks corresponding to the buckle hole parts; when in the assembled state, the buckle hole parts are correspondingly buckled on the buckle blocks.

[0010] Preferably, the periphery of the upper cover and the side below the buckle hole part are formed with a buckle ear part, and the bottom cover is formed with a riveting recess corresponding to the buckle ear part; when in the assembled state, the buckle ear part is correspondingly riveted on the riveting recess.

[0011] Preferably, the upper surface of the upper cover is circumferentially provided with a plurality of positioning holes, and the upper surface of the bottom cover is formed with a plurality of positioning bosses matched with the positioning holes.

[0012] Preferably, the rotating shaft is I-shaped.

[0013] The beneficial effects of the utility model are: in actual operation, the rotating rocker structure exerts pressure on the two brushes, the distance formed by the contact terminal on the carbon film resistor sheet is realized to output the resistance value, thereby ensuring the sensitivity and control precision, and the service life is also improved; the two brushes are arranged in the installation space, the overall size of the rocker potentiometer is greatly reduced, thereby the size of the rocker potentiometer can be as small as possible, and the applicability is greatly improved. ACCURATE DRAWINGS

[0014] Figure 1 It is the exploded view of the utility model.

[0015] Figure 2 It is the perspective view of the utility model.

[0016] Figure 3 It is the sectional view (first visual) of the utility model.

[0017] Figure 4 This is a cross-sectional view (second view) of the present invention.

[0018] Figure 5 This is a perspective view of the present invention (without the top cover).

[0019] The attached figures are labeled as follows: rocker body 10, upper rocker arm 11, lower rocker arm 12, rotating shaft 13, upper cover 14, pressure ring 15, spring 16, bottom cover 17, mounting base 18, contact terminal 19, circuit board 21, snap-fit ​​protrusion 22, carbon film resistor 23, arc-shaped limiting protrusion 24, rocker structure 25, snap-fit ​​hole 26, T-shaped limiting groove 27, second limiting protrusion 28, support protrusion 29, brush 30, limiting groove 31, limiting hole 32, limiting baffle 33, dome button 34, first limiting protrusion 35, positioning hole 36, positioning protrusion 37, riveting recess 38, snap-fit ​​ear 39, guide groove 40, brush pressing part 41, guide hole 42, strip-shaped slot 43, pin 44. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0021] Reference Figures 1-5 As shown: This embodiment provides a rocker potentiometer, including an upper cover 14, a rocker structure 25, a pressure ring 15, a spring 16, a bottom cover 17, a circuit board 21, and two brushes 30. The upper cover 14 covers the bottom cover 17 to form an installation space. The circuit board 21 is installed at the bottom of the installation space and is fixedly connected to the bottom cover 17. The spring 16 is disposed in the installation space and located above the circuit board 21. The pressure ring 15 is correspondingly disposed on the upper surface of the spring 16. The lower part of the rocker structure 25 extends into the installation space and abuts against the pressure ring 15. The two brushes 30 are disposed in the installation space, and the circuit board 21 and the two brushes 30 are connected to the bottom cover 17. A carbon film resistor 23 is provided at the position corresponding to the brush 30 to cooperate with the brush 30; a dome button 34 is provided in the middle of the circuit board 21 to cooperate coaxially with the rocker arm structure 25; the rocker arm structure 25 includes a rocker arm body 10, an upper rocker arm 11, and a lower rocker arm 12; the lower rocker arm 12 has a guide groove 40 that cooperates with the bottom of the rocker arm body 10, the upper rocker arm 11 has a guide hole 42, the upper rocker arm 11 is located above the lower rocker arm 12 and forms a vertical relationship, the lower part of the rocker arm body 10 extends through the guide hole 42 into the guide groove 40 and is connected by a rotating shaft 13; the rotating shaft 13 is I-shaped. Both the upper rocker arm 11 and the lower rocker arm 12 are in contact with the upper surface of the pressure ring 15; the brush 30 includes a mounting base 18 and a contact terminal 19 fixedly mounted on the bottom of the mounting base 18, the lower surface of the contact terminal 19 extending out of the lower surface of the mounting base 18; a pin 44 is riveted to the circuit board 21, the pin 44 passes through the bottom cover 17 and extends out of the bottom cover 17.

[0022] The upper rocker arm 11 and the lower rocker arm 12 are each formed with a brush pressing portion 41 corresponding to one side of the brush 30, and the lower surface of the brush pressing portion 41 is provided as an arc surface. By providing the arc surface, the contact area between the brush pressing portion 41 and the surface of the brush 30 is reduced, thereby reducing the wear loss. The lower surface of the brush pressing portion 41 is formed with a limiting baffle 33, and the lower part of the limiting baffle 33 is provided with a limiting groove 31. The upper cover 14 is formed with a T-shaped limiting groove 27 corresponding to the position of the brush 30, the bottom cover 17 is formed with a strip-shaped clamping groove 43 corresponding to the position of the upper cover 14, and the strip-shaped clamping groove 43 is formed with a supporting boss 29 corresponding to the opening side of the T-shaped limiting groove 27. The brush 30 is accommodated in the space between the upper cover 14 and the limiting baffle 33, and the mounting seat 18 is formed with a first limiting protrusion 35 corresponding to the limiting groove 31 on the side close to the limiting baffle 33. The other side of the mounting seat 18 is formed with a second limiting protrusion 28 corresponding to the upper part of the T-shaped limiting groove 27. The width and length of the upper part of the T-shaped limiting groove 27 are greater than the width of the second limiting protrusion 28. The contact terminal 19 is in contact with the carbon film resistor sheet 23. In actual operation, the rotary rocker structure 25 applies pressure to the two brushes 30, and the distance between the contact terminal 19 and the carbon film resistor sheet 23 realizes the output of the resistance value. Through such a structure, the service life is improved on the basis of ensuring the sensitivity and precision of operation. The two brushes are arranged in the mounting space, which greatly reduces the overall size of the rocker potentiometer, so that the size of the rocker potentiometer can be as small as possible, greatly improving the applicability.

[0023] The upper cover 14 is provided with a limiting hole 32 corresponding to the position of the brush pressing portion 41, and the free end of the brush pressing portion 41 of the upper rocker arm 11 and the lower rocker arm 12 penetrates through the limiting hole 32. The side opposite to the brush pressing portion 41 of the upper rocker arm 11 and the lower rocker arm 12 is movably embedded between the upper cover 14 and the bottom cover 17.

[0024] Preferably, the arc-shaped limiting boss 24 for limiting the spring 16 is arranged on the upper surface of the bottom cover 17 corresponding to the position of the nest piece key 34, and the arc-shaped limiting boss 24 penetrates through the circuit board 21 and extends above the circuit board 21. By arranging the arc-shaped limiting boss 24 to limit and fix the circuit board 21, displacement of the circuit board 21 is avoided, and quick positioning during installation is facilitated, improving assembly efficiency.

[0025] Preferably, the transparent adhesive film 20 is arranged on the upper surface of the circuit board 21 corresponding to the position of the nest piece key 34, and the transparent adhesive film 20 is fixedly bonded to the nest piece key 34. By arranging the transparent adhesive film 20 to fix the nest piece key 34, displacement of the nest piece key 34 is avoided, and the control precision is ensured.

[0026] Preferably, the periphery of the upper cover 14 is provided with a plurality of buckle hole portions 26, and the periphery of the bottom cover 17 is provided with a plurality of buckle protrusions 22 at positions corresponding to the buckle hole portions 26; when in the assembled state, the buckle hole portions 26 are buckled on the buckle protrusions 22 correspondingly, and the assembly is convenient and fast.

[0027] Preferably, the periphery of the upper cover 14 is provided with a plurality of buckle hole portions 26, and the periphery of the bottom cover 17 is provided with a plurality of buckle protrusions 22 at positions corresponding to the buckle hole portions 26; when in the assembled state, the buckle hole portions 26 are buckled on the buckle protrusions 22 correspondingly, and the assembly is convenient and fast.

[0028] Preferably, the periphery of the upper cover 14 is provided with a plurality of buckle hole portions 26, and the periphery of the bottom cover 17 is provided with a plurality of buckle protrusions 22 at positions corresponding to the buckle hole portions 26; when in the assembled state, the buckle hole portions 26 are buckled on the buckle protrusions 22 correspondingly, and the assembly is convenient and fast.

[0029] The above embodiment only expresses one embodiment of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A rocker potentiometer comprising an upper cover (14), a rocker structure (25), a compression ring (15), a spring (16), a bottom cover (17), a circuit board (21), and two brushes (30); the upper cover (14) is arranged on the bottom cover (17) to form a mounting space; the circuit board (21) is mounted at the bottom of the mounting space and fixedly connected with the bottom cover (17), the spring (16) is arranged in the mounting space and above the circuit board (21), the compression ring (15) is correspondingly arranged on the upper surface of the spring (16), the lower part of the rocker structure (25) extends into the mounting space and abuts against the compression ring (15); the two brushes (30) are arranged in the mounting space, the circuit board (21) is provided with carbon film resistor sheets (23) corresponding to the positions of the two brushes (30) to cooperate with the brushes (30); the middle part of the circuit board (21) is provided with a dimple key (34) coaxially cooperating with the rocker structure (25); the rocker structure (25) comprises a rocker body (10), an upper rocker arm (11), and a lower rocker arm (12); the lower rocker arm (12) is provided with a guide groove (40) cooperating with the bottom of the rocker body (10), the upper rocker arm (11) is provided with a guide hole (42), the upper rocker arm (11) is arranged above the lower rocker arm (12) and forms a vertical relationship, the lower part of the rocker body (10) extends into the guide groove (40) through the guide hole (42) and is connected through a rotating shaft (13); the upper rocker arm (11) and the lower rocker arm (12) both abut against the upper surface of the compression ring (15); the brush (30) comprises a mounting seat (18) and a contact terminal (19) fixedly mounted at the bottom of the mounting seat (18), the lower surface of the contact terminal (19) extends out of the lower surface of the mounting seat (18); the circuit board (21) is riveted with a pin (44), the pin (44) penetrates through the bottom cover (17) and extends out of the bottom cover (17). characterized in that The upper rocker arm (11) and the lower rocker arm (12) are formed with brush pressing portions (41) corresponding to one side of the brush (30), the lower surface of the brush pressing portion (41) is provided as an arc surface, the lower surface of the brush pressing portion (41) forms a limiting baffle (33), the lower part of the limiting baffle (33) is provided with a limiting groove (31); the upper cover (14) is formed with a T-shaped limiting groove (27) corresponding to the brush (30), the bottom cover (17) is formed with a strip-shaped clamping groove (43) corresponding to the upper cover (14), the strip-shaped clamping groove (43) is formed with a supporting boss (29) corresponding to the opening side of the T-shaped limiting groove (27), the upper cover (14) and the limiting baffle (33) form a brush (30) receiving space, the mounting seat (18) is formed with a first limiting protruding portion (35) corresponding to the limiting groove (31) on the side close to the limiting baffle (33), the other side of the mounting seat (18) is formed with a second limiting protruding portion (28) corresponding to the upper part of the T-shaped limiting groove (27); the width and length of the upper part of the T-shaped limiting groove (27) are greater than the width of the second limiting protruding portion (28), the contact terminal (19) is in contact with the carbon film resistor sheet (23); in actual operation, the rotary rocker structure (25) applies pressure to the two brushes (30), and the distance formed by the contact terminal (19) on the carbon film resistor sheet (23) realizes the output of the resistance value; The upper cover (14) is provided with a limiting hole (32) corresponding to the brush pressing portion (41), and the free end of the brush pressing portion (41) of the upper rocker arm (11) and the lower rocker arm (12) penetrates through the limiting hole (32); the side opposite to the brush pressing portion (41) of the upper rocker arm (11) and the lower rocker arm (12) is movably embedded between the upper cover (14) and the bottom cover (17).

2. A rocker potentiometer according to claim 1, wherein The middle part of the upper surface of the bottom cover (17) is provided with an arc-shaped limiting boss (24) corresponding to the position of the nest piece key (34), the arc-shaped limiting boss (24) penetrates through the circuit board (21) and extends above the circuit board (21).

3. A rocker potentiometer according to claim 1, wherein The upper surface of the circuit board (21) and the position corresponding to the nest piece key (34) are attached with a transparent adhesive film (20), and the transparent adhesive film (20) is adhesively fixed with the nest piece key (34).

4. A rocker potentiometer according to claim 1, wherein The periphery of the upper cover (14) is provided with a plurality of buckle hole portions (26), and the periphery of the bottom cover (17) is provided with a plurality of buckle protrusions (22) corresponding to the positions of the buckle hole portions (26); when in the assembled state, the buckle hole portions (26) are correspondingly buckled on the buckle protrusions (22).

5. A rocker potentiometer according to claim 4, wherein The upper cover (14) is provided with a buckle lug (39) on the side of the periphery and below the side surface with the buckle hole (26), and the bottom cover (17) is provided with a riveting concave platform (38) corresponding to the position of the buckle lug (39); when in the assembled state, the buckle lug (39) is riveted on the riveting concave platform (38) correspondingly.

6. A rocker potentiometer according to claim 4, wherein The upper surface of the upper cover (14) is provided with a plurality of positioning holes (36) in the periphery, and the upper surface of the bottom cover (17) is provided with a plurality of positioning bosses (37) matched with the positioning holes (36).

7. A rocker potentiometer according to claim 4, wherein The rotating shaft (13) is provided in the shape of I.

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