Earphone capable of being opened

By designing openable headphone structure and protective parts, the problem of flexible circuit board being easily damaged when disassembled is solved, and convenient repair and battery replacement are achieved to protect the flexible circuit board from damage.

CN223219197UActive Publication Date: 2025-08-12MERRY ELECTRONICS (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202422370761.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-27
Publication Date
2025-08-12
Estimated Expiration
2034-09-27

AI Technical Summary

Technical Problem

When existing headphones are removed and repaired or replaced, the flexible circuit board is easily damaged, resulting in circuit damage.

Method used

The openable headphone structure is designed, including a first housing, a second housing and a protective member, the flexible circuit board extending from the first space to the second space, and the protective member is elastically deformed at the connection of the flexible circuit board to prevent excessive bending or twisting.

Benefits of technology

It realizes convenient repair and battery replacement of the headphones, protects the flexible circuit board from damage, and extends the service life of the headphones.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an openable earphone, which comprises a first shell, a second shell, a flexible circuit board and a protection piece, the first shell and the second shell are combined in an openable manner, the flexible circuit board extends from a first space in the first shell to a second space in the second shell, and the protection piece is arranged in the first shell. The protection piece comprises a combination part and a protection part, the combination part is combined in the first shell, and the protection part is combined on the part, connected with the first shell and the second shell, of the flexible circuit board and can be elastically deformed, so that the first shell and the second shell can be opened, an operator can conveniently open the earphone to maintain or replace a battery, and the safety of the earphone is improved. And the protection piece can protect the flexible circuit board and prevent the flexible circuit board from being damaged due to excessive bending or twisting.
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Description

Technical Field

[0001] The utility model relates to the technical field of earphones, in particular to an openable earphone. Background Art

[0002] Conventional earphones include a body, and a flexible printed circuit (FPC) is usually disposed inside the body to electrically connect different electronic components so that the electronic components can function normally.

[0003] However, when operators disassemble existing earphones to perform maintenance or replace batteries, they can easily pull or bend the flexible circuit board, causing local damage or even breakage. This in turn prevents the flexible circuit board from conducting current, further damaging the existing earphones. Therefore, the circuitry of existing earphones can be easily damaged when opened and closed repeatedly, and this presents a clear need for improvement. Utility Model Content

[0004] To address the problem of insufficient maintainability of existing headphones, the present invention provides an openable headphone. Through its openable structure and protection of the flexible circuit board, it effectively improves the problems of the existing technology. Further explanation is given below.

[0005] The openable earphones of the present invention include:

[0006] a first shell, wherein a first space is formed inside the shell;

[0007] a second shell, wherein the first shell and the second shell are openably combined, and the interior of the second shell forms a second space communicating with the first space;

[0008] A flexible circuit board extending from the first space to the second space; and a protective member including a coupling portion and a protective portion, wherein the coupling portion is coupled to the first shell, and the protective portion is coupled to the portion of the flexible circuit board connecting the first shell and the second shell, and can be elastically deformed as the flexible circuit board moves.

[0009] In one embodiment of the present invention, the protective portion of the protective member is provided with a receiving groove and an opening, the receiving groove is provided inside the protective portion, the opening is provided on a side surface of the protective portion and is connected to the receiving groove, so that the flexible circuit board can extend from the opening into the receiving groove and be accommodated in the receiving groove.

[0010] In an embodiment of the present invention, the opening is located outside the protection portion, and the protection portion forms two hooks, so that two sides of the flexible circuit board along a width direction are restricted by the two hooks.

[0011] In an embodiment of the present invention, the width of the receiving groove is greater than the width of the flexible circuit board.

[0012] In an embodiment of the present invention, the openable earphone includes a carrier, the carrier is combined in the first shell, and the combining portion of the protective member is combined with the carrier.

[0013] In one embodiment of the present invention, a supporting shoulder is provided in the first shell, and the supporting member is in a plate shape and is positioned on the supporting shoulder.

[0014] In one embodiment of the present invention, the coupling portion of the protective member is provided with a plurality of assembly holes at intervals, and the supporting member is provided with a plurality of fixing posts, each of which extends into one of the assembly holes to couple the coupling portion and the supporting member.

[0015] In one embodiment of the present invention, the openable earphones include a first circuit board and a second circuit board, the first circuit board and the second circuit board are respectively accommodated inside the first shell and the second shell, and the opposite ends of the flexible circuit board are respectively connected to the first circuit board and the second circuit board.

[0016] In one embodiment of the present invention, the first shell and the second shell are opened along an opening and closing direction, and the protecting portion of the protecting member extends along the opening and closing direction.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The first shell and the second shell of the openable earphones of the present invention can be openably combined, which makes it convenient for operators to open the earphones for maintenance, inspection or battery replacement, and the protective member can protect the flexible circuit board to prevent the flexible circuit board from being damaged by excessive bending or twisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional appearance diagram of Example 1 of the present utility model.

[0020] Figure 2 This is a three-dimensional diagram of the open state of Example 1 of the utility model.

[0021] Figure 3 and Figure 4 For the first embodiment of the present invention, the three-dimensional diagram of the original state and the three-dimensional diagram of the opened state of the first shell and the second shell are omitted.

[0022] Figure 5 The top cross-sectional view of the first shell and the second shell is omitted for the first embodiment of the present invention.

[0023] Figure 6 This is a three-dimensional appearance diagram of Example 2 of the present utility model.

[0024] Figure 7 This is a three-dimensional diagram of the open state of embodiment 2 of the present invention.

[0025] Figure 8 This is a three-dimensional diagram of the original state in which the first shell and the second shell are omitted for the second embodiment of the present invention.

[0026] Figure 9 This is a three-dimensional diagram of the open state of the first shell and the second shell, omitting the second shell of the embodiment of the present invention.

[0027] Explanation of the reference numerals in the specification: 10, 10A: first shell, 101: first coupling edge, 102: abutting shoulder, 11: first space, 20, 20A: second shell, 201: second coupling edge, 202: abutting edge, 21: second space, 30, 30A: flexible circuit board, 40, 40A: protective member, 41: coupling portion, 411: assembly hole, 42, 42A: protective portion, 421: receiving groove, 422, 422A: opening, 423: card groove, 424, 424A: bending section, 50: supporting member, 51 fixing column, 61: first circuit board, 62: second circuit board, D1, D2: opening and closing direction, W: width direction. DETAILED DESCRIPTION

[0028] The drawings in the embodiments provide a more detailed description of the technical solutions in the embodiments of the present invention. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the present invention, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present invention, and should not be understood as limitations on the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The embodiments of the present invention are described in detail below with reference to the drawings.

[0029] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the said features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0031] Example

[0032] like Figures 1 to 4 As shown, the openable earphone of embodiment 1 of the present invention comprises a first shell 10, a second shell 20, a flexible printed circuit 30 (FPC) and a protective member 40, wherein a first space 11 is formed inside the first shell 10; the second shell 20 is combined with the first shell 10, and a second space 21 is formed inside the second shell 20, and the first space 11 is connected to the second space 21. Figure 2 As shown, the first shell 10 and the second shell 20 can be opened from each other, that is, separated from each other at the junction of the two. The separation can be partial or complete, so that the operator can open the earphones and operate the components placed in the first space 11 of the first shell 10 or the second space 21 of the second shell 20.

[0033] For example, in Embodiment 1 of the present invention, the first shell 10 and the second shell 20 can be joined together through a tight fit. The first shell 10 includes a first joining edge 101, and the bottom edge of the second shell 20 has a stepped structure and includes a second joining edge 201 and an abutting edge 202. When the first shell 10 and the second shell 20 are joined, the second joining edge 201 is inserted into and abuts against the inner side of the first joining edge 101, making it difficult for the first shell 10 and the second shell 20 to separate. The operator can apply force to overcome friction and allow the first shell 10 and the second shell 20 to completely separate along an opening and closing direction D1. In other embodiments, the first shell 10 and the second shell 20 can also be joined together through conventional joining means such as pivoting, screw locking, and magnetic attraction.

[0034] like Figure 2As shown, the flexible circuit board 30 extends from the first space 11 to the second space 21. In the first embodiment of the present invention, the ends of the flexible circuit board 30 are connected to a first circuit board 61 and a second circuit board 62, respectively. The first circuit board 61 and the second circuit board 62 are respectively housed within the first shell 10 and the second shell 20 and are used to house the electronic components required for the headset to function. In the first embodiment of the present invention, the first circuit board 61 and the second circuit board 62 can each be a rigid printed circuit board (RPCB); in other embodiments, they can also be other circuit components.

[0035] Please refer to Figures 1 to 4 As shown, the protective member 40 includes a coupling portion 41 and a protective portion 42. The coupling portion 41 is coupled to the first housing 10, and the protective portion 42 is coupled to the flexible circuit board 30, specifically located at the portion of the flexible circuit board 30 connecting the first housing 10 and the second housing 20. In this way, when the first housing 10 and the second housing 20 are opened, the flexible circuit board 30 is restricted by the protective portion 42 and will not be excessively bent or twisted, thereby preventing damage to the flexible circuit board 30. Figure 1 As shown, the earphones of Example 1 of the present invention are true wireless stereo (TWS) earphones, and the first housing 10 has the necessary structure to extend into the user's ear canal. However, in other embodiments, the second housing 20 may also have the above structure, so that the connecting portion 41 of the protective member is located away from the user's ear canal when connected to the first housing 10. The first space 11 or the second space 21 can accommodate a battery.

[0036] By virtue of the above technical features, the first shell 10 and the second shell 20 of the openable earphones of the present invention are openably combined, making it convenient for operators to open the earphones for maintenance, repair, or battery replacement. In addition, the protective member 40 can protect the flexible circuit board 30 from within the first shell 10, preventing the flexible circuit board from being damaged by excessive bending or twisting. Figures 3 to 5As shown, in the first embodiment of the present invention, the protective portion 42 of the protective member 40 is provided with a recess 421 and an opening 422. The recess 421 is provided within the protective portion 42 for accommodating the flexible printed circuit board 30. The opening 422 is provided on a side surface of the protective portion 42 and communicates with the recess 421, allowing the flexible printed circuit board 30 to extend through the opening 422 into the recess 421 and be accommodated therein. The protective portion 42 forms a structure integral to the flexible printed circuit board 30. This facilitates assembly when the protective member 40 is attached to the flexible printed circuit board 30, and is less likely to be affected by other circuit components on either side of the flexible printed circuit board 30.

[0037] Furthermore, the opening 422 is located on the outside of the protection portion 42, that is, on a side close to the inner surface of the first shell 10 and the second shell 20, and the protection portion 42 forms two hooks 423. Figure 5 As shown, the C-shaped cross-section allows the two hooks 423 to restrain the flexible circuit board 30 on both sides along a width direction W. Since the opening 422 is located in the middle of the outer side, the assembler has more space to attach the protective member 40 to the flexible circuit board 30, making the operation more convenient.

[0038] Preferably, if Figure 5 As shown, the width of the receiving groove 421 is greater than the width of the flexible circuit board 30. In this way, the assembler can more conveniently first extend one side of the flexible circuit board 30 into the receiving groove 421 through the opening 422. Then, due to the width difference, the other side of the flexible circuit board 30 can also smoothly pass through the opening 422 and enter the receiving groove 421, avoiding assembly difficulties caused by lack of margin. After the flexible circuit board 30 is fully entered into the receiving groove 421, it can be restricted by the two hooks 423 of the protective portion 42 and will not fall out easily.

[0039] Please refer to Figure 3 As shown, the protection portion 42 of the protection member 40 extends along the opening and closing direction D1, so as to provide protection in the direction in which the flexible circuit board 30 is easily pulled, that is, in the direction in which the first shell 10 and the second shell 20 are opened, so that the flexible circuit board 30 will not be easily pulled and damaged; further, in the present new embodiment 1, the middle section of the protection portion 42 is provided with a bending section 424, and the bending section 424 corresponds to the flexible circuit board 30 and has the effect of guiding the flexible circuit board 30, and the bending section 424 of the protection portion 42 can be elastically deformed as the flexible circuit board 30 moves. Specifically, in the present new embodiment 1, as Figures 1 to 4As shown, the bent section 424 is located above the coupling portion 41. It extends upward from the protective portion 42 along the opening and closing direction D1 and then bends downward. When the first and second housings 10 and 20 are opened, the flexible circuit board 30 is pulled, causing the bent section 424 to elastically deform and straighten. This allows the operator to reconnect the first and second housings 10 and 20. The elastic restoring force of the bent section 424 allows the flexible circuit board 30 to return to its original position without any undue extension. If the flexible circuit board 30 were to extend or even twist, it could be damaged.

[0040] Specifically, in the first embodiment of the present invention, the protective member 40 is made of rubber, and the coupling portion 41 and the protective portion 42 are integrally formed. In other embodiments, the protective member 40 may be made of other materials, and the coupling portion 41 and the protective portion 42 may also be a structure combining different materials, and the elastic deformation of the protective portion 42 does not need to rely on the bending section 424, as long as the protective portion 42 can be elastically deformed when the first shell 10 and the second shell 20 are opened. For further information, please refer to the following. Figures 1 to 4 As shown, the earphone includes a carrier 50, the carrier 50 is combined in the first shell 10, and the coupling portion 41 of the protective member 40 is combined with the carrier 50. Specifically, as Figure 2 As shown, a shoulder 102 is provided in the first shell 10, and the carrier 50 is in a plate shape and is positioned on the shoulder 102; Figure 4 and Figure 5 As shown, the coupling portion 41 of the protective member 40 is provided with a plurality of assembly holes 411 at intervals, and the carrier 50 is provided with a plurality of fixing posts 51 protruding therefrom. Each fixing post 51 extends into one of the assembly holes 411 to couple the coupling portion 41 to the carrier 50. Furthermore, the fixing posts 51 can be heat-melted to form a structure that prevents the assembly holes 411 of the coupling portion 41 from falling off the fixing posts 51, thereby securing the protective member 40. In other embodiments, the fixing posts 51 and the assembly holes 411 can be provided on the coupling portion 41 and the carrier 50, respectively, in reverse. Alternatively, the coupling portion 41 and the carrier 50 can be coupled together by direct adhesive fixation, screw locks, or other means. Furthermore, the coupling portion 41 can also be coupled to the inner wall of the first shell 10 by direct adhesive fixation, screw lock, etc., without the need to provide the supporting member 50 and the abutting shoulder 102. It is only necessary to fix the position of the coupling portion 41 so that the protective portion 42 can provide protection for the flexible circuit board 30 at the portion where the flexible circuit board 30 connects the first shell 10 and the second shell 20.

[0041] Example 2

[0042] like Figures 6 to 9 As shown, the difference between this embodiment and embodiment 1 is that the first shell 10A and the second shell 20A are pivotally connected through a pivot structure 70A, and the edges of the first shell 10A and the second shell 20A are flush with each other; and when opening from the closed state, the second shell 20A is rotated along an opening and closing direction D2 horizontal to the joint surface of the two shells, and drives the flexible circuit board 30A to swing, as shown in FIG. Figures 6 to 9 As shown, the flexible circuit board 30A extends horizontally at the interface between the first shell 10A and the second shell 20A, and the protective portion 42A of the protective member 40A also extends horizontally along the opening and closing direction D2. Thus, the flexible circuit board 30A can be unfolded along the opening and closing direction D2 and protected by the protective portion 42A to prevent improper pulling or twisting that could cause structural or functional damage. Figure 6 and Figure 8 As shown, the opening 422A of the protection portion 42A is also provided on one side close to the inner surface of the first shell 10A and the second shell 20A, so that the assembler can install the protection member 40A on the flexible circuit board 30A; the bending section 424A of the protection portion 42A is located near the pivot structure 70A. When the second shell 20A is rotated along the opening and closing direction D2, as shown in FIG. Figure 7 As shown, the protective portion 42A extends from the bending section 424A and partially extends to the edge of the first shell 10A, which not only prevents the flexible circuit board 30A from rubbing against the edge of the first shell 10A or the pivot structure 70A, but also further reduces the probability of damage to the flexible circuit board 30A.

[0043] The above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments above, those skilled in the art should understand that modifications or equivalent substitutions of the technical solutions of the present invention may be made without departing from the spirit and scope of the technical solutions of the present invention. Those skilled in the art may also make other changes within the spirit of the present invention and apply them to the design of the present invention, as long as they do not deviate from the technical effects of the present invention. These changes made in accordance with the spirit of the present invention should be included in the scope of protection claimed by the present invention.

Claims

1. A turnable headset, characterized in that: include: a first shell, wherein a first space is formed inside the shell; a second shell, the first shell and the second shell being openably combined, the interior of the second shell forming a second space communicating with the first space; a flexible circuit board extending from the first space to the second space; as well as The protective member includes a coupling portion and a protecting portion. The coupling portion is coupled to the first shell. The protecting portion is coupled to the portion of the flexible circuit board connecting the first shell and the second shell, and can be elastically deformed as the flexible circuit board moves.

2. The openable earphone according to claim 1, characterized in that: The protective portion of the protective member is provided with a receiving groove and an opening, the receiving groove is provided inside the protective portion, the opening is provided on a side surface of the protective portion and is connected to the receiving groove, so that the flexible circuit board can extend from the opening into the receiving groove and be accommodated in the receiving groove.

3. The openable earphone according to claim 2, characterized in that: The opening is located outside the protection portion, and the protection portion forms two hooks, so that two sides of the flexible circuit board along a width direction are restricted by the two hooks.

4. The openable earphone according to claim 3, characterized in that: The width of the receiving groove is greater than the width of the flexible circuit board.

5. The openable earphone according to claim 1, characterized in that: The openable earphone includes a carrier, the carrier is combined in the first shell, and the combining portion of the protective member is combined with the carrier.

6. The openable earphone according to claim 5, characterized in that: A supporting shoulder is provided in the first shell, and the supporting component is plate-shaped and positioned on the supporting shoulder.

7. The openable earphone according to claim 5, characterized in that: The coupling portion of the protection member is provided with a plurality of assembly holes at intervals, and the supporting member is provided with a plurality of fixing columns, each of which extends into one of the assembly holes correspondingly for coupling the coupling portion with the supporting member.

8. The openable earphone according to any one of claims 1 to 7, characterized in that: The openable earphones further include a first circuit board and a second circuit board, wherein the first circuit board and the second circuit board are respectively accommodated inside the first shell and the second shell, and opposite ends of the flexible circuit board are respectively connected to the first circuit board and the second circuit board.

9. The openable earphone according to any one of claims 1 to 7, characterized in that: The first shell and the second shell are opened along an opening and closing direction, and the protection portion of the protection member extends along the opening and closing direction.