CN115002589A

CN115002589A - Earphone assembly

Info

Publication number: CN115002589A
Application number: CN202111057987.7A
Authority: CN
Inventors: 魏亚蒙; 邸希剑; 封蕾
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-09-02
Anticipated expiration: 2041-09-09
Also published as: CN115002589B; CN116437255A

Abstract

The embodiment of the application discloses an earphone assembly. The earphone assembly comprises an earphone and an earphone box, wherein the box body of the earphone box is provided with an accommodating part, a handle part of the earphone can slide in the accommodating part or outside the accommodating part along a circular arc-shaped motion track relative to the accommodating part, and when the handle part is positioned in the accommodating part, at least part of head part extends out of the box body. Like this, can conveniently take out the earphone from the earphone box to promote user experience and feel.

Description

Earphone assembly

Technical Field

The application relates to the technical field of electronic products, in particular to an earphone assembly.

Background

True wireless headsets are increasingly popular with users today because they do not require a connecting wire, which is convenient to carry and use, and often such headsets are left unused in the headset case for charging and storage.

The earphone includes stalk portion and head, and wherein, the stalk portion is placed in the box body of earphone box, and the head stretches out outside the box body so that the user gets and puts, and is specific, and the user holds between the fingers the head of earphone with two, then extracts it and makes it break away from with the box body, nevertheless because the surface of earphone is smooth to the head has with earhole complex arc structure, consequently, hold between the fingers the head of earphone and operate comparatively inconveniently when extracting through two fingers, and user experience feels relatively poor.

Disclosure of Invention

The utility model provides an earphone subassembly can conveniently take out the earphone from the earphone box, promotes user experience and feels.

In one aspect, an embodiment of the present application provides an earphone assembly, including an earphone and an earphone box; the headset comprises a handle and a head; the earphone box comprises a box body, wherein the box body is provided with an accommodating part which is used for accommodating the handle part; the handle part can slide into or out of the accommodating part along a circular arc-shaped motion track relative to the accommodating part, and when the handle part is positioned in the accommodating part, at least part of the head part extends out of the box body.

When needs take out the earphone from the earphone box, need not to hold between the fingers the head of earphone, and carry out outside operation of drawing to it, only need to promote the head of earphone through single finger, can make the earphone slide to the portion of holding outside along convex motion orbit for the box body, it is comparatively convenient to operate, user experience feels, when needs put back the earphone box with the earphone, only need put the bottom of stalk portion to the portion of holding, and promote the head make the stalk portion along convex motion orbit reverse slip to the portion of holding in can, it is comparatively convenient to operate.

On the one hand, the embodiment of the present application further provides a first implementation manner of the one hand:

the box body is equipped with the mounting groove, and the mounting groove inner space forms the portion of holding, and the mounting groove is the glossy circular arc groove of inner wall, and the stalk portion is convex structure to with circular arc groove looks adaptation, the stalk portion can slide along the axis of mounting groove. So set up, can simplify the overall structure of this earphone box, simplify manufacturing process, effective reduce cost.

Based on the first implementation manner of an aspect, an embodiment of the present application further provides a second implementation manner of an aspect:

the unilateral clearance between the inner wall of the mounting groove and the outer wall of the handle part is 0-0.1 mm. The position stability of the handle part of the earphone in the mounting groove can be ensured, and meanwhile, the smooth sliding between the handle part and the mounting groove can be ensured. The structure setting of earphone can be simplified, effective reduce cost. Therefore, the position of the handle part of the earphone in the mounting groove can be ensured to be stable, the shaking is avoided, and meanwhile, the smooth sliding between the handle part and the mounting groove can be ensured, so that the earphone can be conveniently taken and placed.

Based on the second implementation manner of the aspect, the present application provides a third implementation manner of the aspect:

the unilateral clearance between the inner wall of the mounting groove and the outer wall of the handle part is 0.025mm-0.05 mm. The smoothness of the earphone when sliding in and out is further guaranteed, and therefore the user experience is further improved. The smoothness of the earphone when sliding in and out is further guaranteed, and therefore the user experience is further improved.

Based on any one of the first to third embodiments of an aspect, the present application examples further provide a fourth embodiment of an aspect:

the open end of mounting groove forms the butt limit towards the side of the centre of a circle of convex movement track, and the butt limit is equipped with the chamfer structure and the chamfer radius is not more than 0.1 mm. The condition that the earphone takes place the damage when the butt limit butt can be avoided in the setting of chamfer structure to provide the protection to the earphone, set up the chamfer radius of chamfer structure to be not more than when 0.1mm, can avoid appearing the earphone and roll along the chamfer face and lead to the dead condition of card, guarantee outside the earphone can slide out the mounting groove smoothly, promote user experience and feel. The condition of damage can be avoided in the setting of chamfer structure earphone when with this butt limit butt to provide the protection to the stalk portion of earphone, when the chamfer radius is not more than 0.1mm, can avoid appearing the earphone and roll along the chamfer face and lead to the dead condition of card, guarantee that the earphone can be smoothly outside the mounting groove slip-out box, promote user experience and feel.

Based on any one of the first to fourth embodiments of an aspect, the present application examples further provide a fifth embodiment of an aspect:

when the handle part is positioned in the accommodating part, at least part of the head part extends out of the upper end face of the box body, and the bottom end of the mounting groove is higher than the center of circle of the circular arc-shaped motion track. So set up, guarantee that the mounting groove is whole to be located the top of the centre of a circle, the mounting groove is whole to be located the one side that the centre of a circle is close to the up end promptly, and the contained angle of arc motion trail between the tangential direction of the open end of mounting groove and up end is littleer, and at this moment, under the same thrust condition, this component at tangential direction will be bigger, more is favorable to driving the stalk portion of earphone along the mounting groove roll-off. Similarly, when the earphone needs to be put back into the box body, the handle part can smoothly slide into the mounting groove.

Embodiments of the present application further provide, based on the one aspect or any one of the first to fifth implementation manners of the one aspect, a sixth implementation manner of the one aspect:

the central angle of the circular arc motion track is not less than 1.5 degrees. The smoothness that the earphone was released in by the mounting groove is guaranteed, promotes user experience and feels.

Embodiments of the present application further provide a seventh implementation manner of the one aspect, based on the one aspect or any one of the first to sixth implementation manners of the one aspect:

the installation cavity has still been seted up to the box body, installation cavity and portion intercommunication that holds, and the head of part earphone can be located the installation cavity, and outside part head stretched out the installation cavity. Can be under the unchangeable condition of whole volume of earphone box, increase the accommodation space in the box body.

Embodiments of the present application further provide an eighth implementation manner of the one aspect, based on the one aspect or any one of the first to seventh implementation manners of the one aspect:

still include the lid, the lid can be covered in the top of box body, and the lid is equipped with installation space, and when the lid covered in the top of box body, it stretches out the outer part of box body to hold the head. The earphone can be stably positioned in the box body and protected.

Embodiments of the present application further provide a ninth implementation manner of the one aspect, based on the one aspect or any one of the first to eighth implementation manners of the one aspect:

the earphone of the head is arranged towards one side of the circle center of the arc-shaped track. When the fingers act on the head of the earphone, the acting points can avoid the position of the earphone.

Drawings

Fig. 1 is a schematic structural diagram of an earphone assembly provided in an embodiment of the present application;

fig. 2 is a schematic view of the structure of the earphone;

FIG. 3 is a schematic view of the structure of the cartridge;

fig. 4 is a force analysis diagram when the headphone head is pushed;

fig. 5 is a schematic diagram of the internal structure of the earphone when it is located in the earphone case;

FIG. 6 is a schematic view of the earphone not fully inserted into the case;

FIG. 7 is a schematic structural view of the earphone in the case when the case is provided with the installation cavity;

fig. 8 is a schematic structural diagram of the position of the center of a circular arc motion track.

In the accompanying fig. 1-8, the reference numerals are illustrated as follows:

1-box body, 11-installation groove, 12-abutting edge, 13-installation cavity and 14-upper end surface;

2-earpiece, 21-handle, 22-head;

o-circle center; r-chamfer radius; l1 — first distance; l2 — second distance; alpha-central angle.

Detailed Description

In order to make the technical solutions of the present application better understood by those skilled in the art, the present application is further described in detail with reference to the accompanying drawings and specific embodiments.

The embodiment of the application provides an earphone assembly, as shown in fig. 1, the earphone assembly comprises an earphone 2 and an earphone box, wherein the earphone 2 refers to a wireless earphone such as a real wireless earphone and can be stored in the earphone box. As shown in fig. 2, the headset 2 comprises a handle 21 and a head 22, the head 22 being provided with an earpiece, and as shown in fig. 3, the headset case comprises a case 1, the case 1 being provided with a receptacle for receiving the handle 21 of the headset 2.

A sliding pair can be formed between the accommodating portion and the handle portion 21, the sliding pair has a circular arc-shaped motion track, that is, the handle portion 21 can slide into or out of the accommodating portion along the circular arc-shaped motion track relative to the accommodating portion, and as shown in fig. 1, when the handle portion 21 slides into the accommodating portion, at least a part of the head portion 22 of the earphone 2 can extend out of the case body 1, specifically, the upper end face 14 of the case body 1, and when a user holds the earphone case in one hand, the portion of the head portion 22 of the earphone 2 extends upwards, so in this embodiment, one side face of the head portion 22 extending out of the case body 1 is referred to as the upper end face 14.

Specifically, as shown in fig. 1 and 3, in the present embodiment, the case body 1 is provided with the mounting groove 11, and the inner cavity of the mounting groove 11 forms the receiving portion, it is understood that the earphones 2 are usually used as a pair, and therefore, the case body 1 is provided with two mounting grooves 11, and each mounting groove 11 corresponds to one earphone 2.

When the handle 21 of the earphone 2 is located in the mounting groove 11 of the case 1, if the user wants to remove the earphone 2 from the case 1, the user can directly apply a pushing force Fx to the earphone 2 by using his fingers, the pushing force Fx having a component force F1 tangential to the circular arc motion trajectory can act on the earphone 2 to slide along the circular arc motion trajectory relative to the case 1, so as to remove the earphone 2 from the case 1. When the earphone 2 is required to be placed in the box body 1, the handle 21 of the earphone 2 is only required to be inserted into the open end of the mounting groove 11, and the head 22 of the earphone 2 is pushed to enable the handle 21 to slide along the mounting groove 11 until the handle 21 is positioned in the mounting groove 11.

In the actual use process, when a user's finger contacts the head 22 of the earphone 2 and applies a pushing force Fx to the head 22, the direction of the pushing force Fx may be parallel to the upper end surface 14, the earphone 2 slides out along the mounting groove 11 by a component force F1 in the tangential direction, in the actual application process, because there is a friction force between the finger and the head 22 of the earphone 2, during the pushing process of the earphone 2, the direction of the pushing force Fx may not only be from the outer side to the inner side along the upper end surface 14 of the case 1, specifically may be from the outer side to the inner side, and at the same time, the finger has a force that drives the earphone 2 to slide out of the mounting groove 11 (may be approximately along the direction) along the arc-shaped movement track in the inclined upward direction, as shown in fig. 4, if the finger is attached to the head 22 of the earphone 2, the earphone 2 is pushed and pushed to the side outside the mounting groove 11, due to the design of the arc-shaped structure, the smooth sliding out of the earphone 2 from the mounting groove 11 can be satisfied under the action of a small pushing force, only a single finger is needed for operation in the whole process, the head 22 of the earphone 2 does not need to be pinched to ensure that the earphone 2 is smoothly taken out from the box body 1, and therefore the user experience is improved.

That is to say, when needs take out earphone 2 in by the earphone box, need not to hold between the fingers head 22 of earphone 2, and carry out the operation of outside drawing to it, only need through single finger promote earphone 2 the head 22 can, it is comparatively convenient to operate, user experience feels, when needs put earphone 2 back into the earphone box, only need insert the bottom of stalk portion 21 in mounting groove 11, and promote head 22 make stalk portion 21 along mounting groove 11 reverse slip to the box body in can, it is comparatively convenient to operate.

Specifically, as shown in fig. 4, the receiver of the head 22 of the earphone 2 is disposed toward one side of the center O of the circular arc motion track, when the earphone 2 is taken out, the head 22 of the earphone 2 is pushed by a finger, specifically, the acting point of the finger and the head 22 of the earphone 2 is located on one side of the head 22 away from the receiver, so as to avoid the direct action of the finger and the receiver of the earphone 2, in this embodiment, the finger may act on other side positions of the head 22, as long as the receiver is not disposed toward one side away from the center O, so that the acting point of the finger avoids the position of the receiver.

As shown in fig. 5-7, the inner wall of the mounting groove 11 is smooth, the axis of the mounting groove 11 is in an arc structure, and meanwhile, the handle 21 is correspondingly configured in an arc structure matching with the mounting groove 11, and the handle 21 can slide along the axial direction of the mounting groove 11 to slide along an arc motion track relative to the case 1.

Because the bending degree of the circular arc structure is relatively small, the earphone 2 is not greatly different from the earphone 2 on the market in vision, the handle 21 is in the circular arc structure, and the structure of the head 22 is not changed, so that the wearing of a user is not influenced. That is, the mounting groove 11 corresponds to an arc-shaped sliding groove forming the shank 21, the mounting groove 11 and the shank 21 are fitted to each other, and the shank 21 can slide relatively in the mounting groove 11.

Of course, in this embodiment, a slide rail having an arc-shaped motion track may be further disposed in the accommodating portion, the handle portion 21 of the earphone 2 may slide along the slide rail by disposing the slide block, and the handle portion 21 may also slide along the arc-shaped motion track relative to the box body 1, and when the mounting groove 11 is configured as a groove having a smooth arc-shaped structure, the overall structure of the earphone box may be simplified, and meanwhile, the earphone 2 does not need to be correspondingly disposed with a slide block, so as to simplify the manufacturing process and effectively reduce the cost.

The axis of the mounting groove 11 and the axis of the handle 21 are both arc structures which are matched with each other, and the sectional shape of the mounting groove 11 and the sectional shape of the handle 21 are not limited. If the sectional shape of the mounting groove 11 and the sectional shape of the shank 21 can be set to be a circular structure, an elliptical structure, a triangular structure, a polygonal structure, or an irregular shape which are adapted to each other, the stability of the shank 21 when it is positioned in the mounting groove 11 can be further ensured. Moreover, in the embodiment, the single-side gap between the inner wall of the mounting groove 11 and the outer wall of the handle part 21 is set to be 0-0.1mm, so that the position of the handle part 21 of the earphone 2 in the mounting groove 11 can be ensured to be stable, shaking can be avoided, and meanwhile, the smooth sliding between the handle part 21 and the mounting groove can be ensured, so that the earphone 2 can be conveniently taken and placed.

It is also possible to arrange the cross-sectional shape of the mounting groove 11 and the cross-sectional shape of the shank 21 to be different, the mounting groove 11 being provided with two first mating surfaces, wherein, one first matching surface is one side facing to the circle center O of the circular arc motion trail, the other first matching surface is one side far away from the circle center O, correspondingly, the handle part 21 is provided with two second matching surfaces, the two second matching surfaces are matched with the two first matching surfaces respectively, namely, when the handle part 21 is arranged in the mounting groove 11, the two first matching surfaces and the two second matching surfaces are matched one by one, and the unilateral clearance between the two first matching surfaces and the two second matching surfaces is 0-0.1mm, so that the handle part 21 of the earphone 2 is ensured to be stable in the mounting groove 11, the shaking is avoided, meanwhile, the earphone 2 can be smoothly slid to be convenient for taking and placing.

Further, in this embodiment, the above single-side gap is preferably set to 0.025mm to 0.05mm, so as to further ensure smoothness when the earphone 2 slides in and out, thereby further improving the user experience.

As shown in fig. 5-7, the open end of the mounting groove 11 forms a butting edge 12 towards one side of the circle center O, the butting edge 12 is provided with a chamfering structure, the chamfering structure is a rounded corner, when the earphone 2 is taken out, the butting edge 12 can be butted against the opening end under the action of thrust, and the arrangement of the chamfering structure can avoid the damage of the earphone 2 when the earphone 2 is butted against the butting edge 12, so as to protect the handle 21 of the earphone 2. The abutting edge 12 is a side edge which is turned backwards after the earphone 2 is subjected to thrust, and a chamfer structure can be arranged on the periphery of the edge of the opening end of the mounting groove 11 to protect the earphone 2 and avoid damage caused by scraping between the handle part 21 and the edge of the opening end of the mounting groove 11 in the taking-out and putting-in processes of the earphone 2.

In this embodiment, the chamfer radius R of the chamfer structure of butt limit 12 is not more than 0.1mm, if chamfer radius R is too big, when earphone 2 under receiving thrust effect with this butt limit 12 butt, it rolls along the chamfer face of butt limit 12 to take place earphone 2 easily, and form the similar wane structure that uses butt limit 12 as the fulcrum, lead to the bottom of stalk portion 21 and the inner wall butt of mounting groove 11, can cause the dead circumstances of card, and set up the chamfer radius R of chamfer structure to be not more than 0.1mm, can avoid appearing earphone 2 and roll along the chamfer face and lead to the dead circumstances of card, guarantee that earphone 2 can be smoothly outside 11 roll-off box bodies of mounting groove, promote user experience and feel. The minimum radius of the chamfer structure is not required, so long as it can meet the requirement of not damaging the earphone 2 when abutting against the earphone 2.

As shown in fig. 7, the upper end surface 14 of the box body 1 is further provided with a mounting cavity 13, the mounting cavity 13 is arranged at the open end of the mounting groove 11 and is communicated with the mounting groove 11, when the earphone 2 is placed in the box body 1, the handle 21 is located in the mounting groove 11, a part of the head 22 of the earphone 2 is located in the mounting cavity 13, and a part of the head 22 of the earphone 2 extends out of the mounting cavity 13, that is, a part of the head 22 extends out of the upper end surface 14 of the box body 1, so that a user can push the head 21 of the earphone 2 with fingers, and take out the earphone 2 from the box body 1. As shown in fig. 7, when the case body 1 is provided with the mounting cavity 13, the abutment edge 12 is located at a corner between an end of the mounting groove 11 and the mounting cavity 13.

This earphone box still includes lid (not shown in the figure), this lid can cover the top of box body 1 (the lid is located box body 1 towards the one side of up end 14 promptly), and still be equipped with the installation space that is used for holding 2 heads 22 of earphone in the lid, when fitting the lid in the top of box body 1, the installation space can hold the part that head 22 stretches out box body 1 up end 14, mounting groove 11 can communicate with the installation space, or mounting groove 11, installation cavity 13 and installation space communicate in proper order, in order to wrap up this earphone 2 in the earphone box completely, make earphone 2 can be stably located box body 1, and protect it.

In this embodiment, the specific shape of the installation space is not limited, for example, the installation space may be configured to be matched with the portion of the head 22 extending out of the upper end surface 14 of the box body 1, at this time, when the upper cover covers the upper side of the box body 1, the shape of the installation space is matched with the shape of the portion of the head 22, the installation space and the installation groove 11 can limit the movement of the earphone 2 from the two ends, and it is ensured that the earphone 2 can be stably located in the earphone box; or after the upper cover is covered with the box body 1, the inner wall of the mounting space can be abutted against the head 22 so as to ensure that the earphone 2 can be stably positioned in the earphone box; or, a magnetic attraction structure may be disposed in the mounting groove 11, so that the earphone 2 can be stably located in the earphone box.

Specifically, the setting mode to the lid does not do the restriction, and this lid can be connected through modes such as articulated, pivotal connection between with the box body 1, also can be connected through the chain rope, is about to break away from the top of lid and box body 1, connects through the chain rope between the two to the condition of preventing losing. When the box cover is in pivot connection with the box body 1, the opening direction of the box cover is not limited, so that after the box cover is opened, a user can push the head 22 of the earphone 2 by hand to slide the head along the mounting groove 11, the box cover cannot interfere with the sliding of the earphone 2, and the influence on the pushing operation of the earphone 2 by the user cannot be caused.

When box body 1 is equipped with installation cavity 13 (as shown in fig. 7), box body 1 and lid cooperation back, the stalk portion 21 of earphone 2 is located mounting groove 11, head 22 part is located the installation space, the part is located mounting cavity 13, the height that the head 22 of earphone 2 stretches out 1 terminal surface of box body is less, at this moment, the height of locating the installation space of lid can suitably reduce, the volume of lid can correspondingly reduce, when not setting up installation cavity 13 (as shown in fig. 5) in box body 1, namely box body 1 only is provided with mounting groove 11 that is used for holding stalk portion 21, at this moment, box body 1 and lid cooperation back, the head 22 of earphone 2 is whole to be located the installation space, above-mentioned two kinds of setting mode all can.

And when being provided with installation cavity 13 with box body 1, the space between the lateral wall of installation cavity 13 and the 1 outer wall of box body can form and is used for holding the connecting wire, the accommodation space of electric elements etc., this earphone box still can charge earphone 2, can place the battery in box body 1 usually, after placing earphone 2 in box body 1, the battery in box body 1 can charge earphone 2, therefore, when box body 1 is equipped with installation cavity 13, though can increase the volume of box body 1, but also can be corresponding reduce the volume of lid, guarantee that the whole volume of this earphone box is unchangeable, and simultaneously, can also make the accommodation space increase in box body 1, the space of placing that provides for the battery is also bigger, more be favorable to improving the electric capacity, and then guarantee the duration of earphone 2.

When the case 1 is capable of charging the earphone 2 placed inside, the inner wall of the mounting groove 11 may be provided with a first contact member, the outer wall of the handle portion 21 of the earphone 2 may be provided with a second contact member, and when the handle portion 21 of the earphone 2 is placed in the mounting groove 11, the first contact member may be in contact with the second contact member, and the earphone 2 may be charged by the storage battery built in the case 1. Specifically, the first contact member and the second contact member are not limited, and for example, one may be a contact head, and the other may be an annular contact surface arranged in the circumferential direction.

The height of the bottom end of the mounting groove 11 is not lower than the height of the center O, and in detail, as shown in fig. 8, the mounting groove 11 and the center O are both located at the same side of the upper end surface 14 of the box body 1, the distance between the bottom end of the mounting groove 11 and the upper end surface 14 of the box body 1 is a first distance L1, the distance between the center O and the upper end surface 14 of the box body 1 is a second distance L2, the first distance L1 is not greater than the second distance L2, namely, L1 is less than or equal to L2, that is, the whole mounting groove 11 is located above the center of circle O, that is, the whole mounting groove 11 is located at the side of the center of circle O close to the upper end surface 14, the included angle between the tangential direction of the arc motion track at the opening end of the mounting groove 11 and the upper end surface 14 is smaller, at this time, under the condition of the same thrust Fx, the tangential component F1 of Fx will be greater, which is more favorable for driving the handle 22 of the headset 2 to slide out along the mounting slot 11. Also, when it is desired to put the earphone 2 back into the case body 1, it is convenient to allow the handle 21 to smoothly slide into the mounting groove 11.

Specifically, the length of the circular arc motion track can be set according to the length of the handle 21 of the earphone 2 (the length of the mounting groove 11), and the radius length of the circular arc motion track can also be set according to the central angle α and the length of the mounting groove 11, the central angle α is set to be greater than or equal to 1.5 °, and preferably not less than 3 ° (i.e., α is greater than or equal to 3 °), so that when the earphone 2 is taken out of the box body 1, the component force of the thrust in the tangential direction is greater, the earphone 2 can be pushed out from the mounting groove 11 smoothly, and the experience of a user is improved.

The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. An earphone assembly, characterized by comprising an earphone (2) and an earphone box;

the headset (2) comprises a handle (21) and a head (22);

the earphone box comprises a box body (1), wherein the box body (1) is provided with a containing part, and the containing part is used for containing the handle part (21);

the handle part (21) can slide relative to the accommodating part along a circular arc-shaped motion track to the inside or the outside of the accommodating part, and when the handle part (21) is positioned in the accommodating part, at least part of the head part (22) extends out of the box body (1).

2. The earphone assembly according to claim 1, wherein the box body (1) is provided with a mounting groove (11), the inner space of the mounting groove (11) forms the accommodating part, the mounting groove (11) is a circular arc groove with a smooth inner wall, the handle part (21) is in a circular arc structure and is matched with the circular arc groove, and the handle part (21) can slide along the axis of the mounting groove (11).

3. The earphone assembly according to claim 2 wherein the unilateral gap between the inner wall of the mounting groove (11) and the outer wall of the handle (21) is 0-0.1 mm.

4. The earphone assembly according to claim 3, wherein the unilateral gap between the inner wall of the mounting groove (11) and the outer wall of the handle (21) is 0.025mm-0.05 mm.

5. The earphone assembly according to any of claims 2-4, wherein the open end of the mounting groove (11) forms an abutting edge (12) towards one side of the center (O) of the circular arc motion trajectory, the abutting edge (12) is provided with a chamfer structure and the chamfer radius (R) is not more than 0.1 mm.

6. The earphone assembly according to any of claims 2-5, characterized in that when the handle (21) is located in the receiving portion, at least a portion of the head (22) protrudes from the upper end surface (14) of the case (1), and the height of the bottom end of the mounting groove (11) is higher than the height of the center (O) of the circular arc motion track.

7. The earphone assembly according to any of claims 1-6 wherein the circular arc shaped motion trajectory has a central angle (α) not less than 1.5 °.

8. The earphone assembly according to any one of claims 1-7, wherein the case (1) further defines a mounting cavity (13), the mounting cavity (13) is communicated with the accommodating portion, a part of the head (22) of the earphone (2) can be located in the mounting cavity (13), and a part of the head (22) extends out of the mounting cavity (13).

9. An earphone assembly as claimed in any one of claims 1-8, further comprising a cover adapted to fit over the case (1), the cover having a mounting space adapted to receive the portion of the head (22) extending out of the case (1) when the cover is fitted over the case (1).

10. The earphone assembly according to any of claims 1-9 wherein the earpiece of the head (22) is disposed towards one side of the centre (O) of the circular arc shaped trajectory.