CN-224233817-U - Turnover structure and earphone box

CN224233817UCN 224233817 UCN224233817 UCN 224233817UCN-224233817-U

Abstract

The utility model discloses a turnover structure and an earphone box, wherein the turnover structure comprises a first hinge seat and a second hinge seat, the first hinge seat is provided with a first channel communicated with an inner cavity of a box body, the second hinge seat is rotationally connected with the first hinge seat and rotates to drive a box cover to close or open the box body, the second hinge seat is provided with a second channel, the second channel and the first channel are used for sequentially penetrating through a flexible conductive structure for connecting the box cover and the box body in a power supply way, the second channel is provided with a first end and a second end, the first end is communicated with the inner cavity of the box cover, and in a rotation stroke of the second hinge seat, a projection of the second end along the extending direction of the first channel is positioned in a cross section boundary of the first channel. According to the utility model, the flexible conductive structure can form a gentle bending structure instead of forming a sharp folding angle according to the space of the first channel and the stress condition of the flexible conductive structure. The condition of stress concentration is avoided, and the probability of mechanical fatigue or fracture damage of the flexible conductive structure is reduced.

Inventors

PENG JIUGAO
WU HAIQUAN
HUANG YUANWEN
SHI RUIWEN
ZHANG ZHIJUN

Assignees

深圳市冠旭电子股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250421

Claims (10)

1. A roll-over structure, comprising: the first hinge seat is used for being connected with the box body and is provided with a first channel communicated with the inner cavity of the box body; The box comprises a box body, a first hinge seat, a second hinge seat, a flexible conductive structure, a first end and a second end, wherein the first hinge seat is used for being connected with the box body, the second hinge seat is rotationally connected with the first hinge seat, the second hinge seat rotates to drive the box body to be closed or opened, the second hinge seat is provided with a second channel, the second channel and the first channel are used for being sequentially penetrated by the flexible conductive structure for connecting the box body and the box body in a power supply mode, the second channel is provided with a first end and a second end, the first end is communicated with an inner cavity of the box body, and in a rotation stroke of the second hinge seat, a projection of the second end along the extending direction of the first channel is located in a cross section boundary of the first channel, so that the second end pushes the flexible conductive structure to swing in the first channel when the second hinge seat rotates.
2. The flip structure of claim 1, wherein the second hinge base has a first position and a second position, the second hinge base being rotated to switch to the first position or the second position; When the second hinging seat is positioned at the first position, the box cover seals the box body, the extending direction of the second channel is intersected with the extending direction of the first channel, and/or, When the second hinging seat is positioned at the second position, the box cover opens the box body, and the second end is arranged towards the first channel or positioned in the first channel.
3. The flip structure of claim 2, wherein the second channel has oppositely disposed first and second sidewalls; When the second hinging seat is positioned at the first position, the first side wall is positioned at one side of the second side wall facing the first channel, the distance between the part, close to the second end, of the first side wall and the first channel is gradually decreased along a first direction, a smooth transition surface is formed, and the first direction is the direction that the first end points to the second end.
4. The flip structure of claim 3 wherein the second hinge base includes a stop protruding from the second end, the stop having a stop surface disposed coplanar with the second side wall.
5. The turnover structure according to claim 2, wherein the first hinge base has a first connection portion, the second hinge base has a second connection portion, the turnover structure further comprises an elastic member, one end of the elastic member is connected with the first connection portion, and the other end of the elastic member is connected with the second connection portion; when the second hinging seat is positioned at the first position and the second position, the elastic parts are in a compressed state.
6. The turnover structure of claim 5, wherein the first hinge base further comprises a first limiting portion, a first movable space is formed between the first limiting portion and the first connecting portion, a part of the elastic member is accommodated in the first movable space, and the first limiting portion is used for stopping the elastic member to limit the deformation range of the elastic member.
7. The flip structure of claim 6, wherein the side wall of the first movable space encloses a limiting groove, the elastic member is configured to be compressively deformed when the second hinge base rotates, and a part of the structure located in the first movable space moves along a groove wall of the limiting groove.
8. The flip structure according to claim 5, wherein the elastic member is disposed between the elastic member and the second end of the second passage in the extending direction of the second passage, or, The second hinge seat comprises a second movable space positioned at one side of the second connecting part along a second direction, part of the structure of the elastic piece is positioned in the second movable space, the second movable space and the second channel are arranged at intervals along the second direction, and the second direction is parallel to the rotation axis of the second hinge seat and the first hinge seat during mutual rotation.
9. The turnover structure of claim 8, wherein the second hinge base further comprises a second limiting portion, the second limiting portion and the second connecting portion are arranged at intervals along the second direction, a second movable space is formed between the second limiting portion and the second connecting portion, a part of the elastic piece is located in the second movable space, and the second limiting portion is used for stopping the elastic piece.
10. An earphone box is characterized by comprising a box body, a box cover, a flexible conductive structure and a turnover structure according to any one of claims 1-9, wherein the box body is connected with a first hinging seat, the box cover is connected with a second hinging seat, the box cover can rotate relative to the box body to open or close the box body, the flexible conductive structure sequentially penetrates through a first channel and a second channel, and two ends of the flexible conductive structure are respectively electrically connected with the box body and the box cover.

Description

Turnover structure and earphone box Technical Field The present utility model relates to the field of electronic devices, and in particular, to a turnover structure and an earphone box. Background In the related art, an FPC (Flexible Printed Circuit Board flexible circuit board) can be arranged at the rotating connection position of the box body and the box cover of the earphone box, and the electrical connection between the electrical element on the box body and the electrical element on the box cover is realized through the FPC. The cover opening and closing actions can repeatedly apply bending stress to the FPC, the bending stress is concentrated at the gap between the box body and the box cover, the curvature radius formed by bending is smaller, in order to ensure that the box cover has proper opening, the included angle between two parts formed by bending the PFC is possibly smaller than 90 degrees and even reaches 0 degree, the mechanical fatigue or fracture damage of the FPC is easily caused, and the electrical performance and the service life of the earphone box are further affected. Disclosure of utility model The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the turnover structure provided by the utility model can avoid the condition of stress concentration on the flexible conductive structure, reduce the probability of mechanical fatigue or fracture damage of the flexible conductive structure, and improve the stability and service life of the electrical performance of the earphone box. The utility model also provides an earphone box with the overturning structure, In a first aspect, an embodiment of the present application provides a turnover structure, including: the first hinge seat is used for being connected with the box body and is provided with a first channel communicated with the inner cavity of the box body; The box comprises a box body, a first hinge seat, a second hinge seat, a flexible conductive structure, a first end and a second end, wherein the first hinge seat is used for being connected with the box body, the second hinge seat is rotationally connected with the first hinge seat, the second hinge seat rotates to drive the box body to be closed or opened, the second hinge seat is provided with a second channel, the second channel and the first channel are used for being sequentially penetrated by the flexible conductive structure for connecting the box body and the box body in a power supply mode, the second channel is provided with a first end and a second end, the first end is communicated with an inner cavity of the box body, and in a rotation stroke of the second hinge seat, a projection of the second end along the extending direction of the first channel is located in a cross section boundary of the first channel, so that the second end pushes the flexible conductive structure to swing in the first channel when the second hinge seat rotates. The turnover structure has the advantages that the first channel provides a deformation space, and when the second hinging seat rotates, the flexible conductive structure can be adaptively deformed corresponding to the part of the structure from the second end to the end extending into the inner cavity of the box body. The deformation range is not limited at the slit between the box body and the box cover, but is provided with a first channel with a first height, and the flexible conductive structure can automatically adjust the shape according to the space of the first channel and the stress condition of the flexible conductive structure, so that a gentle bending structure is formed instead of a sharp bending angle. Therefore, the situation of stress concentration on the flexible conductive structure is avoided, the probability of mechanical fatigue or fracture damage of the flexible conductive structure is reduced, and the stability and the service life of the electrical performance of the earphone box are improved. In one possible implementation manner, the second hinge base has a first position and a second position, and the second hinge base rotates to switch to the first position or the second position; When the second hinging seat is positioned at the first position, the box cover seals the box body, the extending direction of the second channel is intersected with the extending direction of the first channel, and/or, When the second hinging seat is positioned at the second position, the box cover opens the box body, and the second end is arranged towards the first channel or positioned in the first channel. In one possible implementation form according to the first aspect, the second channel has a first side wall and a second side wall disposed opposite each other; When the second hinging seat is positioned at the first position, the first side wall is positioned at one side of the second side wall facing the first channel, the distance between the part, close to t