Earphone assembly

Abstract

Disclosed is an earphone assembly comprising: a head (110) in which a speaker is housed; a headphone handle (120) extending from the head (110), in which a removable battery (140) is housed, said battery powering said loudspeaker, in which said headphone handle comprises a cover plate (126) extending in the axial direction at least over the axial dimension of the battery, said cover plate being individually removable to allow subsequent removal of the battery from the headphone handle. According to the utility model, a dismounting mode capable of replacing the battery is provided for the earphone assembly with the handle, the battery does not need to be connected by a cable, and only the cover plate needs to be dismounted, so that a user can conveniently replace the battery by himself / herself.

Description

Technical Field

[0001] This utility model relates to an earphone assembly, and more particularly to true wireless stereo (TWS) earphones. Background Technology

[0002] TWS (True Wireless Stereo) earbuds are currently a popular product in the audio consumer electronics industry. Consumers are demanding better ergonomic design and wearing experience, leading to increasingly smaller earbud sizes. This, to some extent, affects the battery capacity and performance of TWS earbuds. The battery life of TWS earbuds is approximately 300-500 cycles, or about 1-3 years. With prolonged use, the battery capacity of TWS earbuds will decrease, impacting their battery lifespan.

[0003] However, due to the current trend towards miniaturization in headphone design, most TWS headphones currently adopt an integrated design, making it impossible to extend their lifespan through replaceable batteries. This causes great inconvenience to users, and some users may choose to replace the entire electronic device due to reduced battery life. This undoubtedly increases the amount of electronic waste and poses a significant challenge to environmental protection and sustainable development.

[0004] Currently, there is a lack of unified standards or solutions in the market for designing a simple yet reliable method for battery removal and replacement. Therefore, a new technology is needed to meet the above requirements and enable easy and reliable removal and replacement of TWS earphone batteries. Utility Model Content

[0005] The present invention aims to overcome at least some of the above-mentioned problems in the prior art and provide an earphone assembly whose battery can be easily and reliably disassembled and replaced, thereby extending the service life of the earphone assembly.

[0006] According to one aspect of the utility model, an earphone assembly is provided, comprising: a headpiece in which a speaker is received; and an earphone stem extending from the headpiece in which a removable battery is received, the battery powering the speaker, wherein the earphone stem includes a cover (126) extending axially at least in the axial dimension of the battery, the cover being removable to allow subsequent removal of the battery from the earphone stem.

[0007] According to one or more embodiments of the present invention, the cover plate is located on the side of the earphone stem opposite to the head.

[0008] According to one or more embodiments of the present invention, the earphone stem includes: a first stem segment connected to the head; a second stem segment extending axially from the first stem segment to the tail of the earphone stem, the cover plate being located on the second stem segment, the second stem segment including a fixed housing, the fixed housing being fixedly connected to the cover plate by fasteners to form an inner cavity for accommodating a battery.

[0009] According to one or more embodiments of the present invention, the cover plate extends axially over the entire length of the second handle segment.

[0010] According to one or more embodiments of the present invention, the first handle segment includes an outer peripheral wall segment that engages with the cover plate, and the axial end of the cover plate abuts against the outer peripheral wall segment axially.

[0011] According to one or more embodiments of the present invention, a sealing ring is provided around the cover plate, wherein a flange is provided at the axial end, the flange being able to be inserted into the radially inner side of the outer peripheral wall section, thereby achieving radial sealing between the flange and the outer peripheral wall section through the first section of the sealing ring.

[0012] According to one or more embodiments of the present invention, the fastener is a screw located on the side of the battery away from the first shank, wherein the screw extends through the cover plate and is fastened into a receiving hole in the fixed housing, such that the second section of the sealing ring located between the cover plate and the fixed housing is subjected to force.

[0013] According to one or more embodiments of the present invention, at the junction of the cover plate and the fixed housing, the joint portion of the cover plate is disposed on the inner side relative to the corresponding joint portion of the fixed housing and abuts against the second section of the sealing ring along the extension direction of the screw.

[0014] According to one or more embodiments of the present invention, the flange at the axial end of the cover plate extends in the same plane as the joint portion.

[0015] According to one or more embodiments of the present invention, a stop plate extending in a plane perpendicular to the axial direction is provided inside the fixed housing, and one end of the battery away from the first handle is stopped on the stop plate.

[0016] According to one or more embodiments of the present invention, the receiving hole for the screw is located on the side of the stop plate away from the battery.

[0017] According to one or more embodiments of the present invention, the earphone stem further includes a microphone device located on the tail, and the receiving hole is located axially between the stop plate and the microphone device.

[0018] According to one or more embodiments of the present invention, the headphone assembly further includes a circuit board electrically connected to the speaker and the battery respectively. The circuit board is electrically connected to the battery via a battery connector, the battery connector including: an additional circuit board extending in a plane perpendicular to the axial direction of the headphone stem; and an electrical connector soldered to the additional circuit board.

[0019] According to one or more embodiments of the present invention, the circuit board is arranged in a first segment of the earphone stem, wherein an additional circuit board of the battery connector is positioned on a fixed housing of a second segment.

[0020] According to one or more embodiments of the present invention, the electrical connector is configured as at least two spring pieces that can elastically deform along the axial direction of the earphone stem, and the spring pieces are respectively in elastic contact with the output terminal of the battery at one end.

[0021] According to one or more embodiments of the present invention, the electrical connector is configured as a socket, and a plug that mates with the socket is connected to the battery. Attached Figure Description

[0022] Figure 1 A perspective view of an earphone assembly according to one or more embodiments of the present invention is shown;

[0023] Figure 2 It shows that according to Figure 1 A cross-sectional view of the headphone assembly;

[0024] Figure 3 It shows that according to Figure 1 A cross-sectional view of the headphone stem of the headphone assembly;

[0025] Figure 4 It shows that according to Figure 1 A 3D view of the cover plate of the headphone stem;

[0026] Figure 5 A perspective view of one embodiment of the battery connector in an earphone assembly according to the present invention is shown;

[0027] Figure 6 A perspective view of another embodiment of the battery connector in the headphone assembly according to the present invention is shown;

[0028] Figure 7 An illustration shows a method for disassembling an earphone assembly according to the present invention to replace the battery. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. In the description of this invention, it should be understood that the terms “center,” “longitudinal,” “lateral,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In this document, the term "axis" refers to the central axis of the headphone stem of the headphone assembly; the term "axial" or "axial direction" refers to the direction along the axis of the headphone stem of the headphone assembly; the term "radial" or "radial direction" refers to the direction generally perpendicular to the axis of the headphone stem, pointing towards or away from the axis of the headphone stem; the term "radial inward" or "radial outward" refers to a component, part, position, or orientation relatively close to the axis of the headphone stem; and the term "radial outward" or "radial backward" refers to a component, part, position, or orientation relatively away from the axis of the headphone stem. The term "circumferential" refers to the direction around the axis of the headphone stem.

[0032] This utility model provides an earphone assembly, including: a headpiece in which a speaker is housed; an axially extending earphone stem in which a removable battery is housed, the battery powering the speaker, wherein the earphone stem includes a cover plate extending axially at least in the axial dimension of the battery, the cover plate being individually removable to allow subsequent removal of the battery from the earphone stem.

[0033] This invention provides a replaceable battery removal method for a stem-mounted earphone assembly, eliminating the need for a cable connection to the battery and requiring only the removal of the cover. This facilitates user-friendly battery replacement, improves resource recycling efficiency and product reuse rates, and embodies environmental protection and sustainable development principles. It should be noted that "the cover extends axially at least in the axial dimension of the battery" describes the extension dimension of the cover in its installed state. "The cover can be removed separately" means that the cover is removed separately from the battery, rather than being removed as a module together with the battery.

[0034] According to one or more embodiments of the present invention, the cover plate is located on the side of the earphone stem opposite to the head. In one or more embodiments of the present invention, the earphone stem includes: a first stem segment connected to the head; a second stem segment extending axially from the first stem segment to the tail of the earphone stem, the cover plate being located on the second stem segment, the second stem segment including a fixing housing, the fixing housing being fixedly connected to the cover plate by fasteners to form an inner cavity for receiving a battery. In one or more embodiments of the present invention, the fastener is a screw located on the side of the battery away from the first stem segment, wherein the screw extends through the cover plate and is fastened into a receiving hole in the fixing housing, such that a sealing ring located between the cover plate and the fixing housing is stressed.

[0035] With the above-described arrangement of this utility model, the tightening force provided by the screw can also help to achieve the sealing effect of the sealing ring located between the cover plate and the fixed housing, thereby simply and conveniently realizing the connection and sealing between the cover plate and the fixed housing, making the detachable design of the earphone assembly of this utility model simpler and more reliable.

[0036] In one or more embodiments of the present invention, the headphone assembly further includes a circuit board electrically connected to the speaker and the battery, respectively. The circuit board is electrically connected to the battery via a battery connector, the battery connector comprising: an additional circuit board extending in a plane perpendicular to the axial direction of the headphone stem; and an electrical connector soldered to the additional circuit board. In one or more embodiments of the present invention, the electrical connector is configured as at least two elastically deformable springs along the axial direction of the headphone stem, each spring elastically contacting an output terminal of the battery at one end.

[0037] The battery replacement process is further simplified by designing a battery connector with a spring-loaded contact. After removing the screws and cover, the battery can be easily removed without any additional steps. The same applies when installing the battery. Furthermore, this battery connector occupies less space, which is beneficial for the miniaturization of the headphone components.

[0038] Figure 1 A partial exploded view of an earphone assembly 100 according to one or more embodiments of the present invention is shown. From Figure 1 As can be seen, the headphone assembly 100 includes a head 110 and an earphone stem 120 extending from the head 110. The head 110 includes the ear-entry portion of the headphone assembly 100, in which a speaker 112 is housed (see...). Figure 2The earphone stem 120 houses a removable battery 140, which powers the speaker 112 in the headphone 110. The earphone stem 120 has a generally cylindrical profile, the central axis of which is the axial direction of the earphone stem. The earphone stem 120 includes a cover 126 extending axially at least in the axial dimension of the battery 140, which can be individually removed from the earphone stem 120 to allow subsequent removal of the battery 140. The cover 126 is sealed around its perimeter by a sealing ring 150, which is configured to prevent water or other foreign matter from entering the earphone assembly 100. Figure 1 In the illustrated embodiment, the earphone assembly 100 is a TWS earphone. In other embodiments according to the present invention, the earphone assembly 100 can be any suitable wireless earphone.

[0039] The cover 126 is located on the back of the earphone stem 120, i.e., the side facing away from the head 110. This allows for easy removal of the cover and battery, and provides more space for battery design. In other embodiments according to the present invention, the cover 126 may also be located on the front or side of the earphone stem 120.

[0040] Additionally from Figure 1 As can be seen, the earphone stem 120 is axially divided into a first stem segment 122 and a second stem segment 124. The first stem segment 122 is connected to the head 110 on one side. The first stem segment 122 includes a first outer peripheral wall segment 122a and a second outer peripheral wall segment 122b, which are fixedly assembled together by interference fit and / or adhesive. The second stem segment 124 extends axially from the first stem segment 122 to the tail of the earphone stem 120. The battery 140 and the cover plate 126 are both located in the second stem segment 124.

[0041] It should be noted that the first stem segment 122 of the earphone stem is located at the transition between the head 110 and the second stem segment 124, and therefore there may be various design options. In some earphone products, the first stem segment 122 can be designed to be seamlessly integrated with the earphone head and not clearly distinguishable, while in other earphone products, the first stem segment 122 can be designed to have a clear boundary with the earphone head. All these design options should fall within the protection scope of this utility model.

[0042] Figure 2 It shows that according to Figure 1 A cross-sectional view of the headphone assembly 100. From Figure 2As can be seen, the first handle segment 122 houses a first circuit board 116. The head segment 110 houses a speaker 112 and a plurality of second circuit boards 114. The first circuit board 116 is electrically connected to the speaker 112 and the second circuit boards 114 in the head segment 110, and to the battery 140 in the second handle segment 124, respectively. The electrical connection between the first circuit board 116 and the battery 140 is achieved through... Figure 2 Battery connector 132 (see also see) Figure 3 and Figure 5 This is achieved by placing the first circuit board 116 within the first stem segment 122, making the overall structure of the headphone assembly 100 more compact and facilitating miniaturization. In one or more embodiments of this invention, the first circuit board 116 may also be disposed within the head section 110.

[0043] from Figure 2 As can be seen, the second handle segment 124 includes a fixed housing 128, which is fixedly connected to the cover plate 126 by screws 130 to form an inner cavity for accommodating the battery 140. The fixed housing 128 is fixedly connected to or integrally formed with the second outer peripheral wall segment 122b of the first handle segment 122 and a portion of the outer shell of the head 110, and each of them is fixed relative to the removable cover plate 126.

[0044] In the embodiments shown in this utility model, the fixed connection between the housing 128 and the cover plate 126 is achieved by using screws 130 as fasteners. In one or more embodiments of this utility model, the screws 130 are self-tapping screws. In one or more embodiments of this utility model, the fasteners used to achieve the fixed connection between the housing 128 and the cover plate 126 can also be snap-fit ​​connectors.

[0045] from Figure 2 As can be seen, screw 130 is located on the side of battery 140 away from the first shank segment 122. Screw 130 extends through cover plate 126 and is fastened into receiving hole 128b in fixed housing 128, so that the second segment 150b of sealing ring 150 located between cover plate 126 and fixed housing 128 is subjected to force. Through this arrangement of the present invention, the fastening force provided by screw 130 can simultaneously facilitate the sealing function of the second segment 150b of sealing ring 150 located between cover plate 126 and fixed housing 128, thereby simply and conveniently realizing the connection and sealing between cover plate 126 and fixed housing 128.

[0046] In the embodiment shown in this invention, the cover plate 126 extends axially over the entire length of the second handle segment 124. In one or more embodiments of this invention, the axial extension length of the cover plate 126 may also be less than the axial extension length of the second handle segment 124.

[0047] Figure 3 It shows that according to Figure 1 A cross-sectional view of the headphone stem 120 of the headphone assembly 100, wherein compared to Figure 2 A portion of the first handle segment 122 and the second handle segment 124 are shown in magnified view. Figure 3 As can be seen, the axial end 126a of the cover plate 126 abuts against the first outer peripheral wall section 122a axially. The axial end 126a of the cover plate 126 is provided with a flange 126a', which can be inserted into the radially inner side of the first outer peripheral wall section 122a, thereby achieving a radial seal between the flange 126a' and the first outer peripheral wall section 122a through the first section 150a of the sealing ring 150. Here, "radial" refers to the direction extending generally perpendicular to the axis of the earphone stem 120, including both directions pointing towards and away from the axis of the earphone stem, and "radially inner side" refers to the position relatively close to the axis of the earphone stem 120.

[0048] Figure 3 The engagement between the cover plate 126 and the fixed housing 128 is also clearly shown, wherein the engagement portion 126b of the cover plate 126 is located on the inner side relative to the corresponding engagement portion 128b of the fixed housing 128. The engagement portion 126b of the cover plate 126 abuts against the second section 150b of the sealing ring 150 generally along the extension direction of the screw 130. Therefore, the tightening force provided by the screw 130 acts simultaneously on the second section 150b of the sealing ring 150, thereby achieving a simple and convenient connection and seal between the cover plate 126 and the fixed housing 128.

[0049] from Figure 3 It can also be seen that a stop plate 136 extending in a plane perpendicular to the axis of the earphone stem is provided inside the fixed housing 128, and the end of the battery 140 away from the first stem segment 122 is stopped on the stop plate 136. A receiving hole 138a for the screw 130 is located on the side of the stop plate 136 away from the battery 140. In one or more embodiments of the present invention, the columnar structure 138 (with receiving hole 138a) Figure 1 and 6 (More clearly visible in the image) and the stop plate 136 are integrally formed. In one or more embodiments of this utility model, the columnar structure 138 and the stop plate 136 are integrally formed components that fix the housing 128.

[0050] Additionally, the headphone stem 120 includes a microphone assembly 134 located at its tail end, which is situated within the fixed housing 128. A receiving hole 138a for the screw 130 is axially located between the stop plate 136 and the microphone assembly 134. Therefore, through the aforementioned removable battery design of this invention, battery replacement can be achieved simply and reliably without affecting the existing microphone design of the headphone assembly 100, and without requiring significant modifications to the existing mechanical and electrical structure of the headphone assembly, resulting in high cost-effectiveness.

[0051] Figure 4 It shows that according to Figure 1 A perspective view of the cover 126 of the earphone stem 120, clearly showing the inner side of the cover 126, i.e., the side facing the battery 140. A through hole 126c is provided in the central region of the cover 126 to allow a screw 130 to pass through. The engagement structure of the cover 126 includes a flange 126a' that engages with the first stem segment 122 and a joint portion 126b that engages with the fixed housing 128. Viewed axially, the flange 126a' and the joint portion 126b extend substantially or approximately in the same plane. Correspondingly, the sealing rings 150 used to seal the cover 126 do not extend entirely in the same plane; instead, the first segment 150a of the sealing ring 150 corresponding to the flange 126a' is located radially outward of the flange 126a', and the second segment 150b of the sealing ring 150 corresponding to the joint portion 126b is located radially inward of the flange 126a'. The flange 126a' of the cover plate 126 is provided with a gap 126d on both sides so that the flange 126a' can be inserted into the radially inner side of the first outer peripheral wall section 122a of the first handle section 122. The transition section between the first section 150a and the second section 150b of the sealing ring 150 also extends through the gap 126d.

[0052] Figure 5 A perspective view of one embodiment of the battery connector 132 in the headphone assembly 100 according to the present invention is shown. Figure 2 , 3 As shown in Figure 5, the battery connector 132 includes: an additional circuit board 132a, which is positioned on the fixing housing 128 of the second stem segment 124 and extends in a plane perpendicular to the axial direction of the earphone stem 120; at least two spring contacts 132b soldered to the additional circuit board 132a, which are elastically deformable along the axial direction of the earphone stem and respectively elastically contact one end of the output terminal 142 (copper base) of the battery 140, realizing communication and power supply between the battery 140 and the first circuit board 116. By designing the battery connector 132 with spring contacts 132b, the replacement process of the battery 140 is further simplified. After removing the screws 130 and the cover plate 126, only the battery 140 needs to be simply removed without any additional steps.

[0053] Figure 6A perspective view of another embodiment of the battery connector 132 in the headphone assembly 100 according to the present invention is shown. To clearly illustrate the... Figure 1-5 The differences in the embodiments are only indicated by reference numerals for some components. The battery connector 132 includes: an additional circuit board 132a positioned on the retaining housing 128 of the second stem segment 124 and extending in a plane perpendicular to the axial direction of the earphone stem 120; and a socket 132c soldered to the additional circuit board 132a. Correspondingly, a plug 144 mates with the socket 132c on the battery 140. In this embodiment, the plug 144 remains electrically connected to the battery 140 during battery removal and installation. During installation, after the battery 140 is installed into the retaining housing 128, electrical connection is achieved simply by inserting the plug 144 into the socket 132c; during removal, the battery 140 is first removed from the retaining housing 128, and then the plug 144 is pulled out of the socket 132c, or the plug 144 is pulled out of the socket 132c first, and then the battery 140 is removed from the retaining housing 128.

[0054] Figure 5 and 6 In this embodiment, the battery connector 132 is disposed in the second stem segment 124 of the earphone stem 120. In one or more embodiments of this utility model, the battery connector 132 may also be disposed in the first stem segment 122 and / or the head 110.

[0055] Figure 7 A diagram illustrates a method for disassembling the headphone assembly 100 according to the present invention to replace the battery 140, wherein, from top to bottom, the following are shown: A. The assembled state of the headphone assembly 100; B. Unscrewing the screws 130; C. Removing the cover plate 126; D. Removing the battery 140 from the retaining housing of the headphone stem 120, thereby disconnecting the power supply and communication connection between the battery 140 and the battery connection plate 132. Conversely, Figure 7 The diagrams, arranged from bottom to top, illustrate the process of installing a new battery 140 into the headphone assembly 100.

[0056] This invention provides an easy-to-use replaceable battery solution for TWS earbuds with stems, where the battery does not need to be connected via a cable, but only the battery cover needs to be secured with screws, making it convenient for users to replace the battery themselves, and embodying the concept of environmental protection and sustainable development.

[0057] This utility model can be implemented in the following ways:

[0058] Item 1: An earphone assembly comprising: a headstock having a speaker housed therein; an earphone stem extending from the headstock having a removable battery that powers the speaker, wherein the earphone stem includes a cover extending axially at least in the axial dimension of the battery, the cover being individually removable to allow subsequent removal of the battery from the earphone stem.

[0059] Project 2: The headphone assembly according to Project 1, characterized in that the cover plate is located on the side of the headphone stem opposite to the head.

[0060] Item 3: An earphone assembly according to any one of Items 1 to 2, characterized in that the earphone stem comprises: a first stem segment connected to the head; a second stem segment extending axially from the first stem segment to the tail of the earphone stem, the cover plate being located on the second stem segment, the second stem segment comprising a fixed housing, the fixed housing being fixedly connected to the cover plate by fasteners to form an inner cavity for accommodating a battery.

[0061] Item 4: The headphone assembly according to any one of Items 1 to 3, characterized in that the cover extends axially over the entire length of the second stem segment.

[0062] Item 5: The headphone assembly according to any one of Items 1 to 4, characterized in that the first stem segment includes an outer peripheral wall segment that engages with the cover plate, and the axial end of the cover plate abuts against the outer peripheral wall segment axially.

[0063] Item 6: The headphone assembly according to any one of Items 1 to 5, characterized in that a sealing ring is provided around the periphery of the cover plate, wherein a flange is provided at the axial end, the flange being able to be inserted into the radially inner side of the outer peripheral wall section, thereby achieving a radial seal between the flange and the outer peripheral wall section through the first section of the sealing ring.

[0064] Item 7: The headphone assembly according to any one of Items 1 to 6, characterized in that the fastener is a screw located on the side of the battery away from the first shank, wherein the screw extends through the cover and is fastened into a receiving hole in the fixed housing, such that the second section of the sealing ring located between the cover and the fixed housing is stressed.

[0065] Item 8: The headphone assembly according to any one of Items 1 to 7, characterized in that at the junction of the cover plate and the fixed housing, the junction portion of the cover plate is disposed on the inner side relative to the corresponding junction portion of the fixed housing and abuts against the second segment of the sealing ring along the extension direction of the screw.

[0066] Item 9: The headphone assembly according to any one of Items 1 to 8, characterized in that the flange at the axial end of the cover plate extends in the same plane as the engagement portion.

[0067] Item 10: The headphone assembly according to any one of Items 1 to 9, characterized in that a stop plate extending in a plane perpendicular to the axial direction is provided inside the fixed housing, and one end of the battery away from the first stem segment is stopped on the stop plate.

[0068] Item 11: The headphone assembly according to any one of items 1 to 10, characterized in that the receiving hole for the screw is located on the side of the stop plate away from the battery.

[0069] Item 12: The headphone assembly according to any one of Items 1 to 11, characterized in that the headphone stem further includes a microphone device located on the tail, and the receiving hole is located axially between the stop plate and the microphone device.

[0070] Item 13: The headphone assembly according to any one of Items 1 to 12, characterized in that the headphone assembly further comprises a circuit board electrically connected to the speaker and the battery respectively, the circuit board being electrically connected to the battery via a battery connector, the battery connector comprising: an additional circuit board extending in a plane perpendicular to the axial direction of the headphone stem; and an electrical connector soldered to the additional circuit board.

[0071] Item 14: An earphone assembly according to any one of Items 1 to 13, characterized in that the circuit board is arranged in a first segment of the earphone stem, wherein the battery connector is positioned on a fixed housing of a second segment.

[0072] Item 15: The headphone assembly according to any one of Items 1 to 14, characterized in that the electrical connector is provided as at least two springs capable of elastic deformation along the axial direction of the headphone stem, the springs being in elastic contact with the output end of the battery at one end respectively.

[0073] Item 16: The headphone assembly according to any one of Items 1 to 15, characterized in that the electrical connector is configured as a socket, and a plug that mates with the socket is connected to the battery.

[0074] The above description is merely an exemplary embodiment used to illustrate the principle of this utility model and is not intended to limit the scope of protection of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also within the scope of protection of this utility model.

Claims

1. An earphone assembly, characterized in that... include: Head (110), which houses the speaker; An earphone stem (120) extends from the head (110) and houses a removable battery (140) that powers the speaker. The earphone stem includes a cover (126) extending axially at least in the axial dimension of the battery, the cover being removable to allow subsequent removal of the battery from the earphone stem, wherein the earphone stem includes: The first shank segment (122) connected to the head; A second stem segment (124) extends axially from the first stem segment (122) to the tail of the earphone stem. A cover plate (126) is located on the second stem segment. The second stem segment includes a retaining housing (128) that is fastened to the cover plate by fasteners to form an inner cavity for accommodating a battery. The cover plate is provided with a sealing ring (150) around its perimeter. The fastener is a screw (130) located on the side of the battery away from the first shank. The screw extends through the cover plate and is fastened into a receiving hole (138a) in the fixed housing, so that the second section (150b) of the sealing ring (150) located between the cover plate and the fixed housing is subjected to force. The earphone stem (120) also includes a microphone device (134) located at the tail.

2. The headphone assembly according to claim 1, characterized in that, The cover plate (126) is located on the side of the earphone stem (120) opposite to the head (110).

3. The headphone assembly according to claim 1, characterized in that, The cover plate extends axially over the entire length of the second handle section.

4. The headphone assembly according to claim 1, characterized in that, The first handle section (122) includes an outer peripheral wall section that engages with the cover plate (126), the axial end (126a) of the cover plate abutting against the outer peripheral wall section in the axial direction.

5. The headphone assembly according to claim 4, characterized in that, The axial end (126a) is provided with a flange (126a') which can be inserted into the radially inner side of the outer peripheral wall section, thereby achieving a radial seal between the flange and the outer peripheral wall section through the first section (150a) of the sealing ring.

6. The headphone assembly according to claim 1, characterized in that, At the junction of the cover plate (126) and the fixed housing (128), the joint portion (126b) of the cover plate is located on the inner side relative to the corresponding joint portion (128b) of the fixed housing and abuts against the second section (150b) of the sealing ring along the extension direction of the screw.

7. The headphone assembly according to claim 6, characterized in that, The flange (126a') of the axial end (126a) of the cover plate extends in the same plane as the joint (126b).

8. The headphone assembly according to claim 1, characterized in that, The fixed housing (128) is provided with a stop plate (136) extending in a plane perpendicular to the axial direction, and the end of the battery away from the first handle segment (122) is stopped on the stop plate (136).

9. The headphone assembly according to claim 8, characterized in that, The receiving hole (138a) for the screw (130) is located on the side of the stop plate (136) away from the battery.

10. The headphone assembly according to claim 9, characterized in that, The receiving hole (138a) is located axially between the stop plate (136) and the microphone device (134).

11. The headphone assembly according to claim 1, characterized in that, The headphone assembly also includes a circuit board electrically connected to the speaker and the battery (140) respectively. The circuit board is electrically connected to the battery (140) via a battery connector (132), which includes: an additional circuit board extending in a plane perpendicular to the axial direction of the headphone stem; and an electrical connector soldered to the additional circuit board.

12. The headphone assembly according to claim 11, characterized in that, The circuit board is arranged in the first segment (122) of the earphone stem, wherein the additional circuit board of the battery connector is positioned on the fixed housing (128) of the second segment.

13. The headphone assembly according to claim 11, characterized in that, The electrical connector is configured as at least two elastic tabs (132b) that can elastically deform along the axial direction of the earphone stem, and each elastic tab is in elastic contact with the output terminal of the battery at one end.

14. The headphone assembly according to claim 11, characterized in that, The electrical connector is configured as a socket (132c), and the battery (140) is connected to a plug (144) that mates with the socket.

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