CN109413533B

CN109413533B - Headset

Info

Publication number: CN109413533B
Application number: CN201811496654.2A
Authority: CN
Inventors: 隋松亮; 丁立军; 刘帅; 宋坤; 杨硕; 张亚雄
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2018-12-07
Filing date: 2018-12-07
Publication date: 2023-12-22
Anticipated expiration: 2038-12-07
Also published as: CN109413533A

Abstract

The invention discloses a headset, which comprises a headband, a headset body and a connecting device; the headband is connected with the earphone body through the connecting device; the connecting device comprises a sleeve, a rotating shaft, a fixing piece and a gasket; one of the rotation shaft and the sleeve is provided on the headband, and the other is provided on the earphone body; the gasket can absorb the size error from sleeve pipe, mounting and pivot well, and the sleeve pipe can not take place to rock in the use to obtain good moment of torsion and good feel experience.

Description

Headset

Technical Field

The invention relates to the technical field of electroacoustic conversion, in particular to a headphone.

Background

Headphones are one of the commonly used electronic products, and generally include two headphone bodies and a headband connecting the two headphone bodies. For convenience in storage and improved wearing comfort, the two earphone bodies are designed to be rotatable so as to better fit the ears of the wearer, improving the acoustic performance of the product. For a headset, besides good sound quality and sound effect, the wearing experience is also important; in terms of wearing experience, the rotational torque of the connection device between the earphone body and the headband is critical to the feel experience. In order to obtain the rotation torque, some products on the market are pressed by screws, some products are pressed by metal sheets, some products are locked by screws, etc., but the accurate and stable torque is difficult to obtain in all the modes, and the tolerance of each part cannot be effectively absorbed.

Therefore, a new technical solution is needed to solve the above technical problems.

Disclosure of Invention

It is an object of the present invention to provide a new solution for a headphone.

According to a first aspect of the present invention, there is provided a headphone comprising a headband, a headphone body, and a connecting means, the headband being connected to the headphone body by the connecting means; the connecting device comprises a sleeve, a rotating shaft, a fixing piece and a gasket;

one of the rotating shaft and the sleeve is arranged on the headband, the other sleeve is arranged on the earphone body, the sleeve is sleeved on the outer side of the rotating shaft and can rotate around the rotating shaft, and the fixing piece is connected with the rotating shaft to form a stop for the sleeve;

the gasket comprises a first surface and a second surface which are opposite, wherein the first surface is formed with an annular bulge, and the second surface is formed with an annular groove corresponding to the annular bulge; or the first surface is provided with a conical surface with a convex middle part, the second surface is provided with a conical surface with a concave middle part, and the gasket is arranged between the sleeve and the fixing piece and forms pretightening force for the sleeve and the fixing piece.

Optionally, the outer side wall of the rotating shaft is provided with a protruding portion, and the protruding portion abuts against the end portion of the fixing piece.

Optionally, the rotating shaft is provided with an annular groove, the sleeve is provided with an annular protruding part matched with the annular groove, and the annular protruding part is connected with the annular groove in a matching way.

Optionally, the cavity of the sleeve is provided with a step surface, and the gasket is positioned between the step surface and the outer side wall of the fixing piece.

Optionally, the step surface is flush with an upper surface of the protrusion.

Optionally, the side surface of the outer side wall of the fixing piece is an inclined surface matched with the inner side wall of the gasket.

Optionally, the pad is made of POM.

Optionally, the fixing piece is connected with the rotating shaft through threads.

Optionally, the fixing member is a nut.

The headset comprises a head band, a headset body and a connecting device, wherein the head band is connected with the headset body through the connecting device; the connecting device comprises a sleeve, a rotating shaft, a fixing piece and a gasket, wherein the sleeve is sleeved on the outer side of the rotating shaft and can rotate around the rotating shaft, the fixing piece is connected with the rotating shaft to form a stop for the sleeve, and the gasket is in a pressed state and can deform in the pressure direction when the sleeve rotates around the rotating shaft, so that the gasket can well absorb the dimensional errors from the sleeve, the fixing piece and the rotating shaft, the sleeve cannot shake in the using process, and therefore good torque and good hand feeling experience are obtained.

Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic diagram of the overall structure of a headset of the present invention;

FIG. 2 is a schematic view of the structure of the connection device in the headset of the present invention;

FIG. 3 is an enlarged schematic view of a portion of the article identified as A in FIG. 2;

FIG. 4 is a schematic diagram of a front view of a spacer in one embodiment of a headset of the present invention;

FIG. 5 is a cross-sectional view A-A of FIG. 4;

FIG. 6 is a schematic side view of the structure of FIG. 4;

fig. 7 is a schematic cross-sectional view of a spacer in another embodiment of the headset of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Referring to fig. 1, an embodiment of the present invention provides a headphone. The headset comprises a head band 1, a headset body 2 and a connecting device 3, wherein the head band 1 is connected with the headset body 2 through the connecting device 3; as shown in fig. 2 and 3, the connecting device 3 includes a sleeve 31, a rotating shaft 32, a fixing member 33 and a spacer 34; one of the rotating shaft 32 and the sleeve 31 is arranged on the headband 1, and the other is arranged on the earphone body 2, the rotating shaft 32 is fixed, the sleeve 31 is sleeved on the outer side of the rotating shaft 32 and can rotate around the rotating shaft 32, and the fixing piece 33 is connected with the rotating shaft 32 to form a stop for the sleeve 31; referring to fig. 4-6, the gasket 34 includes opposite first and second surfaces, the first surface is formed with a tapered surface having a convex middle portion, the second surface is formed with a tapered surface having a concave middle portion, or referring to fig. 7, the first surface is formed with an annular protrusion, and the second surface is formed with an annular groove corresponding to the annular protrusion; the spacer 34 is disposed between the sleeve 31 and the fixing member 33, and forms a pre-tightening force for the sleeve 31 and the fixing member 33.

In one embodiment, the outer side wall of the rotating shaft 32 has a protruding portion 321, the protruding portion 321 abuts against the end portion of the fixing member 33, the protruding portion 321 forms a stop position for the movement of the fixing member 33, and when the fixing member 33 moves to the stop position along the axial direction of the rotating shaft 32, the fixing member 33 is not movable again, so as to limit the displacement of the fixing member 33 along the axial direction of the rotating shaft 32, and the limiting function is achieved.

The first surface and the second surface of the spacer 34 are configured such that the spacer 34 is in a pressed state and is capable of being deformed in a pressing direction when the sleeve 31 rotates around the rotation shaft 32. The spacer 34, under pressure, rotates the sleeve 31 to achieve the desired torque. Since the first surface of the spacer 34 abutting against the bottom surface of the outer sidewall of the fixing member 33 has a tapered surface with a convex middle portion or is formed with an annular protrusion, and since the second surface of the spacer 34 abutting against the inner sidewall of the cavity of the sleeve 31 has a tapered surface with a concave middle portion or is formed with an annular groove corresponding to the annular protrusion, the first surface of the spacer 34 is in close contact with the bottom surface of the outer sidewall of the fixing member 33, and a gap is provided between the second surface of the spacer 34 and the inner sidewall of the cavity of the sleeve 31, so that when the fixing member 33 is moved to the stop position, the first surface of the spacer 34 is subjected to the pressure of the bottom surface of the outer sidewall of the fixing member 33, and the first surface and the second surface have a positional margin where deformation occurs in the direction in which the spacer 34 is subjected to the pressure.

In one embodiment, the rotating shaft 32 has an annular groove 322, the sleeve 31 has an annular protrusion 312 matching with the annular groove 322, the annular protrusion 312 is inserted into the annular groove 322, and when the sleeve 31 rotates around the rotating shaft 32, the annular protrusion 312 rotates along the annular groove 322 in the annular groove 322 to ensure the stability of rotation.

In one embodiment, the cavity of the sleeve 31 has a step surface 311, the gasket 34 is located between the step surface 311 and the outer side wall of the fixing member 33, and the gasket 34 abuts against the step surface 311 and the bottom surface of the outer side wall of the fixing member 33.

In one embodiment, the step surface 311 is flush with the upper surface of the projection 321 to facilitate accurate positioning during assembly. An accommodating space for accommodating a part of the spacer 34 is formed between the outer side wall of the fixing member 33 and the step surface 311.

Further, the side surface of the outer side wall of the fixing member 33 is an inclined surface matched with the inner side wall of the gasket 34, and the inclined surface has a positioning function on the assembly of the gasket 34, so that the gasket is prevented from shaking during the rotation of the sleeve 31 around the rotating shaft 32.

In one embodiment, the fixing member 33 is screwed with the rotating shaft 32. The fixing member 33 is a nut.

As shown in fig. 4-6, in one embodiment, the pad 34 is a pad with a cross section similar to a V shape, a first surface of the pad is formed with a conical surface with a convex middle part, a second surface of the pad is formed with a conical surface with a concave middle part, and inner and outer sides of the pad are inclined to enable the cross section to be similar to the V shape, and the pad is preferably made of POM, and is firm, wear-resistant and long in service life; as shown in fig. 7, the spacer 34 may also have a structure similar to an arch in section, a first surface of which is formed with an annular protrusion, and a second surface of which is formed with an annular groove corresponding to the annular protrusion. The gasket 34 can stably fix the sleeve 31 on the rotating shaft 32, and meanwhile, due to the deformation of the gasket 34, tolerance of parts from the sleeve 31, the fixing piece 33 and the rotating shaft 32 is absorbed, when the sleeve 31, the fixing piece 33 and the rotating shaft 32 slightly change in size (the torque is greatly changed due to slight out-of-tolerance), the gasket 34 can deform in the pressure direction, the dimensional errors from the sleeve 31, the fixing piece 33 and the rotating shaft 32 can be well absorbed, and the sleeve 31 cannot shake in the use process, so that good torque and good hand feeling experience are obtained.

While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A headset, characterized by comprising a headband (1), a headset body (2) and a connecting device (3), wherein the headband (1) is connected with the headset body (2) through the connecting device (3); the connecting device (3) comprises a sleeve (31), a rotating shaft (32), a fixing piece (33) and a gasket (34);

one of the rotating shaft (32) and the sleeve (31) is arranged on the headband (1), the other sleeve (31) is arranged on the earphone body (2), the sleeve (31) is sleeved on the outer side of the rotating shaft (32) and can rotate around the rotating shaft (32), and the fixing piece (33) is connected with the rotating shaft (32) to form a stop for the sleeve (31);

the gasket (34) includes opposed first and second surfaces, the first surface being formed with an annular projection and the second surface being formed with an annular recess corresponding to the annular projection; or the first surface is provided with a conical surface with a convex middle part, the second surface is provided with a conical surface with a concave middle part, and the gasket (34) is arranged between the sleeve (31) and the fixing piece (33) and forms pretightening force for the sleeve (31) and the fixing piece (33);

the outer side wall of the rotating shaft (32) is provided with a protruding part (321), and the protruding part (321) is abutted with the end part of the fixing piece (33); the rotating shaft (32) is provided with an annular groove (322), the sleeve (31) is provided with an annular protruding part (312) matched with the annular groove (322), and the annular protruding part (312) is connected with the annular groove (322) in a matching way; the cavity of the sleeve (31) is internally provided with a step surface (311), and the gasket (34) is positioned between the step surface (311) and the outer side wall of the fixing piece (33).

2. The headphone according to claim 1, characterized in that the step surface (311) is flush with an upper surface of the projection (321).

3. The headphone according to claim 1, characterized in that the outer side wall of the securing element (33) is beveled to match the inner side wall of the pad (34).

4. A headset according to any of claims 1-3, characterized in that the material of the pad (34) is POM.

5. A headset according to any of claims 1-3, characterized in that the securing member (33) is screwed with the spindle (32).

6. A headset according to any of claims 1-3, characterized in that the securing member (33) is a nut.