CN212013017U - Potentiometer assembly and earphone - Google Patents

Abstract

The utility model discloses a potentiometre subassembly and earphone, include: a housing; the driving assembly comprises an adjusting roller, a first gear and a second gear, the adjusting roller is rotationally connected with the shell, the adjusting roller is fixedly connected with the first gear, and the first gear is meshed with the second gear; and the potentiometer comprises a resistor body and an electric brush, the resistor body is fixed relative to the shell, and the electric brush is fixedly connected with the second gear. The utility model discloses a set up first gear and second gear, adjusting roller and first gear fixed connection, the brush fixed connection of second gear and potentiometre, first gear and the meshing of second gear, from this, through rotating adjusting roller, can realize the regulation of potentiometre, when the design, can adjust the reference circle diameter of first gear and the reference circle diameter of second gear as required, need not to modify the shape of shell by a wide margin.

Description

Potentiometer assembly and earphone

Technical Field

The utility model belongs to the technical field of the earphone and specifically relates to a potentiometre subassembly and earphone is related to.

Background

With the rapid development of the earphone market and the popularization of potentiometers, the potentiometers are applied to earphones more and more, but based on the given earphone shell shape, the inner space of the shell is limited, and the axis of the adjusting roller is difficult to align with the axis of the potentiometer. The scheme of changing the appearance of the earphone is adopted to solve the space problem in the related art, the axis of the adjusting roller is difficult to align with the axis of the potentiometer, but the defects of long production period and high production cost exist in the large-scale change of the shell.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a potentiometer assembly can realize being connected of adjusting roller and potentiometer simply fast, need not to revise the shape of shell by a wide margin.

The utility model discloses still provide an earphone.

In a first aspect, an embodiment of the present invention provides a potentiometer assembly, including: a housing; the driving assembly comprises an adjusting roller, a first gear and a second gear, the adjusting roller is rotationally connected with the shell, the adjusting roller is fixedly connected with the first gear, and the first gear is meshed with the second gear; and the potentiometer comprises a resistor body and an electric brush, the resistor body is fixed relative to the shell, and the electric brush is fixedly connected with the second gear.

The utility model discloses potentiometre subassembly has following beneficial effect at least: through setting up first gear and second gear, adjusting roller and first gear fixed connection, the brush fixed connection of second gear and potentiometre, first gear and second gear meshing, from this, through rotating adjusting roller, can realize the regulation of potentiometre, when the design, can adjust the reference circle diameter of first gear and the reference circle diameter of second gear as required, and the shell of earphone need not to revise by a wide margin, and production cycle is short from this, low in production cost.

According to the utility model discloses a potentiometre subassembly of other embodiments, drive assembly still includes first pivot, the first end of first pivot with the casing rotates to be connected, the second end of first pivot is fixed with the second gear with the brush.

According to the utility model discloses a potentiometre subassembly of other embodiments, first pivot the cross section of second end is the polygon, the second gear with all be provided with the corresponding hole of cross sectional shape on the brush, the second gear with the brush cover is established first pivot the second is served.

According to the utility model discloses a potentiometre subassembly of other embodiments, the casing is injectd and is formed with the holding chamber, the internal surface in holding chamber is provided with the opening, adjusting roller arranges in the holding intracavity, just adjusting roller's partly follow the opening exposes to the outside of casing.

According to the utility model discloses a potentiometre subassembly of other embodiments, drive assembly still includes the antiskid cover, the antiskid overlaps to be established on adjusting roller.

According to the utility model discloses a potentiometre subassembly of other embodiments, the outer surface distribution of antiskid cover has the arch.

According to the utility model discloses a potentiometre subassembly of other embodiments still includes the circuit board, circuit board fixed connection in the casing, the resistive element fixed connection in the circuit board, the resistive element with the brush all with circuit electricity on the circuit board is connected.

According to the utility model discloses a potentiometre subassembly of other embodiments, be provided with the draw-in groove on the casing, the circuit board insert to in the draw-in groove.

In a second aspect, an embodiment of the present invention provides an earphone, including the potentiometer assembly as described above.

The utility model discloses earphone has following beneficial effect at least: by using the potentiometer component, the design of the earphone can be simplified, and the shape of the shell of the earphone does not need to be frequently modified, so that the production cost of the earphone is reduced, and the competitiveness of the earphone is improved.

Drawings

Fig. 1 is a front view of a potentiometer assembly of a first embodiment;

FIG. 2 is a rear view of the potentiometer assembly of FIG. 1;

FIG. 3 is an isometric view of the potentiometer assembly of FIG. 1;

FIG. 4 is an exploded view of the potentiometer assembly of FIG. 1;

FIG. 5 is a schematic illustration of the potentiometer assembly of FIG. 1 with the housing removed;

FIG. 6 is an isometric view of the first shaft of FIG. 1;

FIG. 7 is a left side elevational view of the second gear of FIG. 1;

FIG. 8 is a right side view of the cleat cover of FIG. 1.

Detailed Description

The conception and the resulting technical effects of the present invention will be described clearly and completely with reference to the following embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" on another feature, it can be directly disposed, fixed, or connected to the other feature or indirectly disposed, fixed, connected, or mounted on the other feature. In the description of the embodiments of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "more than", "less than" or "within" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.

Referring to fig. 1 to 5, fig. 1 is a front view of a potentiometer assembly according to a first embodiment, fig. 2 is a rear view of the potentiometer assembly of fig. 1, fig. 3 is an isometric view of the potentiometer assembly of fig. 1, fig. 4 is an exploded view of the potentiometer assembly of fig. 1, and fig. 5 is a schematic view of the potentiometer assembly of fig. 1 with the housing 100 removed. The potentiometer assembly of the embodiment comprises a shell 100, a driving assembly 200, a potentiometer 300 and a circuit board 400, wherein the shell 100 comprises a main body 110 and a protective shell 120, the protective shell 120 is fixedly connected to the main body 110 in a locking manner, an accommodating cavity 111 is formed in the front side of the main body 110, and the driving assembly 200, the potentiometer 300 and the circuit board 400 are all arranged in the accommodating cavity 111. The potentiometer 300 includes a resistor and a brush, and the driving assembly 200 drives the brush to rotate relative to the resistor, thereby adjusting the resistance of the potentiometer 300. The circuit board 400 is used for connecting the potentiometer 300 with a main board.

The driving assembly 200 includes an anti-slip sleeve 210, an adjusting roller 220, a first gear 230, a first rotating shaft 240 and a second gear 250, the adjusting roller 220 is rotatably connected to the main body 110, specifically, the left end and the right end of the adjusting roller 220 are both provided with a second rotating shaft 221, the main body 110 is provided with a groove 113, and after the protective shell 120 is fixedly locked to the main body 110, the second rotating shaft 221 is limited in the groove 113, so that the adjusting roller 220 can rotate relative to the main body 110. The first gear 230 is fixedly connected to the second rotating shaft 221 located at the right side of the adjustment roller 220 (the fixing method may adopt a key and key slot matching method), and the second gear 250 is engaged with the first gear 230. The second gear 250 is fixedly connected to the brush through the first rotating shaft 240, and at the same time, the second gear 250 is also rotatably connected to the main body 110 through the first rotating shaft 240.

Therefore, by rotating the adjustment roller 220, the first gear 230 can drive the second gear 250 to rotate, the second gear 250 drives the brush of the potentiometer 300 to rotate, and finally the brush rotates relative to the resistor, so that the resistance value of the potentiometer 300 can be adjusted. During design, the reference circle diameter of the first gear 230 and the reference circle diameter of the second gear 250 can be adjusted as required, so that the stable connection between the adjusting roller 220 and the potentiometer 300 is realized, the shell 100 does not need to be modified greatly, and the limitation of space does not need to be considered excessively during design.

Referring to fig. 4, 6 and 7, fig. 6 is an isometric view of the first shaft 240 of fig. 1, and fig. 7 is a left side view of the second gear 250 of fig. 1. In order to fixedly connect the second gear 250 to the brush through the first rotating shaft 240, the first rotating shaft 240 is provided. The left end of the first shaft 240 is a first end 241, the right end of the first shaft 240 is a second end 243, and a retaining ring 242 is further disposed at the middle position of the first shaft 240. The first end 241 of the first rotating shaft 240 is rotatably connected to the main body 110 by the protective shell 120 in the same manner as the second rotating shaft 221 is rotatably disposed on the main body 110. The cross section of the second end 243 of the first rotating shaft 240 is a regular hexagon, correspondingly, a regular hexagon inner hole is formed in the second gear 250, a regular hexagon inner hole is also formed in the electric brush of the potentiometer 300, and after the second end 243 of the first rotating shaft 240 penetrates through the inner hole of the second gear 250 and the inner hole of the electric brush, the second gear 250 and the electric brush can synchronously rotate. In addition, the retainer ring 242 may prevent the second gear 250 from slipping out of the first end 241 of the first shaft 240.

In other embodiments, the cross section of the second end 243 of the first rotating shaft 240 may be other polygonal shapes, such as triangle, rectangle and regular pentagon, and the shape of the inner hole of the second gear 250 and the shape of the inner hole of the brush are correspondingly configured. By providing the second end 243 of the first shaft 240 with a polygonal cross-section, the second gear 250 and the brush can be rotated in synchronization with the first shaft 240.

In order to realize the installation and fixation of the potentiometer 300 and the connection of the potentiometer 300 and the main board, a circuit board 400 is provided, the circuit board 400 is fixed on the main body 110, the resistor body of the potentiometer 300 is fixed on the circuit board 400 (which can be locked by a fastener), and the brush and the resistor body are electrically connected with the circuit on the circuit board 400, so that the circuit board 400 realizes both the installation and fixation of the potentiometer 300 and the connection of the potentiometer 300 and the main board.

Specifically, in order to fixedly connect the circuit board 400 to the main body 110, the main body 110 is provided with a card slot 112, the circuit board 400 is inserted into the card slot 112, and the width of the circuit board 400 is greater than or equal to the width of the card slot 112, thereby fixedly connecting the circuit board 400 to the main body 110.

In other embodiments, the circuit board 400 may be directly locked to the body 110 by screws.

Referring to fig. 2, 4 and 8, fig. 8 is a right side view of the slip cover 210 of fig. 1. To facilitate the rotation of the adjustment roller 220 outside the housing 100 (i.e., outside the housing 100, i.e., on the side of the housing 100 facing away from the accommodating cavity 111), an opening 114 is provided on the inner surface of the accommodating cavity 111, and a portion of the adjustment roller 220 is disposed in the outer portion of the housing 100 through the opening 114, so that the adjustment roller 220 can be rotated by a user outside the housing 100.

In order to prevent the adjusting roller 220 from slipping, an anti-slip sleeve 210 (the anti-slip sleeve 210 is in interference fit with the adjusting roller 220) is sleeved on the adjusting roller 220, and protrusions 211 are uniformly distributed on the outer surface of the anti-slip sleeve 210, so that the adjusting roller 220 is not easy to slip when rotated.

In other embodiments, the outer surface of the anti-slip sleeve 210 may also be provided with anti-slip stripes, such as raised ribs, which may also serve as anti-slip features.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims (9)

1. A potentiometer assembly, comprising:

a housing;

the driving assembly comprises an adjusting roller, a first gear and a second gear, the adjusting roller is rotationally connected with the shell, the adjusting roller is fixedly connected with the first gear, and the first gear is meshed with the second gear;

and the potentiometer comprises a resistor body and an electric brush, the resistor body is fixed relative to the shell, and the electric brush is fixedly connected with the second gear.

2. The potentiometer assembly according to claim 1, wherein the driving assembly further comprises a first rotating shaft, a first end of the first rotating shaft is rotatably connected with the housing, and a second end of the first rotating shaft is fixed with the second gear and the brush.

3. A potentiometer assembly according to claim 2, wherein the second end of the first shaft has a polygonal cross-section, the second gear and the brush each have an inner hole with a corresponding cross-sectional shape, and the second gear and the brush are sleeved on the second end of the first shaft.

4. A potentiometer assembly according to claim 1, wherein the housing defines a receiving cavity, an opening is provided on an inner surface of the receiving cavity, the adjustment roller is disposed in the receiving cavity, and a portion of the adjustment roller is exposed to the outside of the housing from the opening.

5. A potentiometer assembly according to claim 1, wherein the driving assembly further comprises an anti-slip sleeve, and the anti-slip sleeve is sleeved on the adjusting roller.

6. A potentiometer assembly according to claim 5, wherein the anti-slip sleeve has protrusions distributed on its outer surface.

7. A potentiometer assembly according to any of claims 1 to 6, further comprising a circuit board fixedly attached to the housing, the resistor fixedly attached to the circuit board, and the resistor and the brushes each electrically connected to circuitry on the circuit board.

8. A potentiometer assembly according to claim 7, wherein the housing is provided with a slot into which the circuit board is inserted.

9. An earphone comprising a potentiometer assembly according to any of claims 1 to 8.

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