Wireless earphone charging case

Abstract

The application relates to a wireless earphone charging box, which comprises a shell, the shell is provided with an independent sound cavity, and a loudspeaker sound emitting assembly is arranged in the sound cavity. By arranging the independent sound cavity in the shell and arranging the loudspeaker sound emitting assembly in the sound cavity, the sound can be emitted, the sound quality and sound effect of the sound emission are improved, and the use experience of a user can be improved.

Description

Technical Field

[0001] This application relates to the field of wireless earphone technology, and in particular to wireless earphone charging cases. Background Technology

[0002] With the increasing popularity of wireless earphones, traditional charging cases mainly serve the functions of storing and charging earphones. Their internal structure typically only includes a battery module, charging contacts, and magnetic positioning components.

[0003] In related technologies, the charging case only serves as a charging carrier for the earbuds and cannot be used independently after the earbuds are removed. Some charging cases use a direct-drive speaker structure, but the sound quality and effects of external sound output are poor, making it difficult to meet the needs of external sound output. Utility Model Content

[0004] Therefore, it is necessary to provide a wireless earphone charging case to address the problem of poor external sound quality in traditional charging cases.

[0005] A wireless earphone charging case, comprising:

[0006] The housing has an independent sound cavity.

[0007] An external speaker assembly is disposed within the sound cavity.

[0008] In one embodiment, the external sound-emitting component includes a loudspeaker and at least one diaphragm.

[0009] In one embodiment, the housing includes a lid and a body, the body including a receiving cavity configured for holding wireless earphones; the lid has a sound cavity, a mounting cavity, and a partition disposed between the sound cavity and the mounting cavity.

[0010] In one embodiment, the lid includes a lid liner disposed on the side of the lid near the box body, and the lid liner forms the sound cavity between the top surface of the lid, the side surface of the lid, and the partition; the lid liner forms the mounting cavity between the top surface of the lid, the other opposite side surface of the lid, and the partition.

[0011] In one embodiment, the partition includes at least two sections, one of which is fixedly connected to the top surface of the lid and the other of which is fixedly connected to the side of the lid liner away from the box body; the partition also includes a sound insulation pad disposed between the two partition sections.

[0012] In one embodiment, the speaker and diaphragm are fixedly disposed on the side of the cover opposite to the cover liner, and a cushioning material is provided between the speaker and the cover liner.

[0013] In one embodiment, the side of the cover where the speaker and diaphragm are mounted has a plurality of evenly distributed sound holes; a dustproof mesh is provided between the speaker and the sound holes, and between the diaphragm and the sound holes.

[0014] In one embodiment, a sound receiving assembly is disposed within the mounting cavity, the sound receiving assembly including a first circuit board and a microphone, the microphone being mounted on the first circuit board.

[0015] In one embodiment, a charging assembly is also included, which is mounted inside the housing and includes a second circuit board and a battery.

[0016] It also includes a spring-loaded switch, one end of which is mounted on one side surface of the second circuit board, and the other end has a gap with the second circuit board. It is configured such that when the cover is in the open state, squeezing the spring-loaded switch will turn it on.

[0017] In one embodiment, the device further includes a bracket, a rotating shaft, and a torsion spring. The bracket is disposed within the housing. The rotating shaft is mounted on the bracket. One end of the connecting plate of the housing cover is sleeved around the outer periphery of the rotating shaft. The torsion spring is sleeved on the rotating shaft, with one end of the torsion spring abutting against the bracket and the other end abutting against the connecting plate. The connecting plate is configured to abut against the spring-loaded switch.

[0018] The aforementioned wireless earphone charging case has an independent sound cavity inside the shell, and the external speaker component is located inside the sound cavity to realize the external sound, improve the sound quality and sound effect, and thus enhance the user experience. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a wireless earphone charging case.

[0020] Figure 2 This is a schematic diagram of the box lid.

[0021] Figure 3 This is a schematic diagram of the sound hole structure.

[0022] Figure 4 This is a schematic diagram of the charging component.

[0023] Figure 5 This is a schematic diagram of the back structure of the second circuit board.

[0024] Figure 6 This is a partial structural diagram of the lid and body of the box.

[0025] In the diagram: 10. Shell; 101. Lid; 102. Box body; 103. Receiving cavity; 104. Lid liner; 105. Box inner liner; 106. Connecting plate; 11. Sound cavity; 12. Mounting cavity; 13. Partition; 14. Sound outlet; 15. Charging assembly; 151. Second circuit board; 152. Battery; 153. Spring probe; 154. Spring switch; 155. Charging interface; 156. Power interface; 157. Indicator light; 158. Light guide; 16. Bracket; 17. Shaft; 18. Torsion spring; 191. Power switch; 192. Volume button;

[0026] 20. External speaker assembly; 211. Speaker; 212. Diaphragm; 22. Receiver assembly; 221. First circuit board; 222. Microphone;

[0027] 30. Wireless headphones. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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 application.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] See Figure 1 , Figure 2 , Figure 1 A schematic diagram of the structure of a wireless earphone charging case according to an embodiment of this application is shown. Figure 2 A schematic diagram of the structure of the lid 101 in one embodiment of this application is shown.

[0035] One embodiment of this application provides a wireless earphone charging case, including a housing 10 and an external speaker assembly 20. The housing 10 has an independent sound cavity 11, and the external speaker assembly 20 is disposed within the sound cavity 11. The external speaker assembly 20 is disposed separately within the sound cavity 11 from the wireless earphone 30, which is beneficial for the propagation of sound within the sound cavity 11 and improves sound quality and sound effects.

[0036] In this embodiment, the housing 10 includes a cover 101 and a body 102. The body 102 includes a receiving cavity 103 configured to hold the wireless earphone 30.

[0037] The lid 101 is movably connected to the body 102, and the lid 101 has an independent sound cavity 11 inside. The sound cavity 11 inside the lid 101 and the receiving cavity 103 inside the body 102 are set independently, that is, the wireless earphone 30 and the external speaker component 20 are set independently, which ensures the sound output effect of the external speaker component 20 in the sound cavity 11 and helps to improve the sound quality.

[0038] Alternatively, the housing 102 may also include a sound cavity 11, which is separated from the receiving cavity 103. That is, the receiving cavity 103 is located above the sound cavity 11. The receiving cavity 103 is used to house the wireless earphone 30, and the sound cavity 11 is used to house the external speaker assembly 20.

[0039] The box 102 is made of plastic and manufactured by one-piece injection molding. It has a rectangular structure with rounded outer contours, or the box 102 has an elliptical structure.

[0040] The receiving cavity 103 is located in the middle area of ​​the top of the box 102. The receiving cavity 103 is an open groove structure, and its shape is adapted to the contour of the wireless earphone 30. The inner wall of the groove conforms to the curve of the earphone shell and has multiple anti-slip protrusions to prevent the earphone from shaking in the charging case.

[0041] The housing 102 also includes a charging component 15, which is disposed below the receiving cavity 103 and is configured to be electrically connected to the wireless earphones 30 to charge the wireless earphones 30.

[0042] The charging assembly 15 is located below the receiving cavity 103 and includes a rechargeable battery 152, a charging circuit board, and charging contacts. The rechargeable battery 152 is a lithium-ion battery. The charging circuit board, also known as the second circuit board 151, integrates multiple charging protection circuits, such as overcharge protection, over-discharge protection, and short-circuit protection, to ensure a safe and reliable charging process. The charging contacts, also known as spring probes 153, are made of metal, symmetrically distributed, and elastically contact the corresponding contacts at the bottom of the earphone to achieve efficient power transmission.

[0043] The lid 101 is rotatably connected to the body 102. The lid 101 can open and close at a 90° angle. An array of sound outlet holes 14 are provided on one side of the lid 101 for external sound output.

[0044] The external speaker assembly 20 is installed in an independent sound cavity 11 inside the cover 101, and consists of a speaker 211, etc. The speaker 211 is a moving coil speaker 211.

[0045] In the specific implementation process, when the user puts the wireless earphone 30 into the receiving cavity 103 of the housing 102, the charging contacts at the bottom of the earphone automatically contact the charging component 15. After detecting that the earphone is connected, the charging battery 152 is controlled to supply power to the earphone and start the charging process.

[0046] The user opens the lid 101 to a certain angle or presses the function button on the surface of the charging case 102 to start the charging case. When the wireless earphones 30 are detected to be placed in the receiving cavity 103, the external sound function is activated. At this time, the external sound-emitting component 20 starts working, and the user can establish a Bluetooth connection with the charging case through a mobile phone or other device to transmit audio signals such as music and videos from the mobile phone to the charging case, which will then be played out by the speaker 211.

[0047] As mentioned above, by optimizing the structural design of the external speaker component 20, the clarity, layering, and low-frequency response of the sound are improved, thereby enhancing the sound quality and effects of external sound playback, meeting users' needs for high-quality music playback, and improving the user experience.

[0048] Combination Figure 2 As shown, Figure 2 This is a schematic diagram of the structure of the box cover 101 provided in one embodiment of this application.

[0049] In some embodiments, the external speaker assembly 20 includes a speaker 211 disposed in a sound cavity 11 and at least one diaphragm 212. The speaker 211 is disposed in the sound cavity 11 and electrically connected to the charging assembly 15; the diaphragm 212 is disposed on one side of the speaker 211.

[0050] Specifically, the speaker 211 is installed in the sound cavity 11, which has a sealed structure to effectively reduce sound leakage. The speaker 211 is electrically connected to the charging component 15 via a wire, which is a flat, flexible cable to facilitate wiring within the limited space inside the charging box.

[0051] The external speaker assembly 20 is equipped with two passive bass diaphragms 212, each located on the same side of the speaker 211. The diaphragms 212 are made of composite materials to enhance vibration and sound propagation performance. The diaphragms 212 are mounted inside the housing 101 by a mounting bracket to improve their stability and reduce noise caused by vibration.

[0052] There is a gap between the diaphragm 212 and the speaker 211, which allows the diaphragm 212 to enhance the bass effect of the speaker 211. When the speaker 211 is working, the sound waves generated push the air, causing the diaphragm 212 to vibrate synchronously, further amplifying and strengthening the bass part, and enhancing the bass experience.

[0053] In one embodiment, the cover 101 is further provided with an installation cavity 12, which is independently set from the sound cavity 11. The cover 101 is also provided with a partition 13, which is disposed between the sound cavity 11 and the installation cavity 12 to maintain the independence of the two cavities, ensure the sound purity of the sound cavity 11, and improve the sound quality and sound effect.

[0054] The lid 101 includes a lid liner 104, which is disposed on the side of the lid 101 near the box body 102. The lid liner 104 forms a sound cavity 11 with the top surface of the lid 101, the side surface of the lid 101, and the partition 13.

[0055] The top surface of the lid 101 refers to the side of the lid 101 away from the inner liner 104. The top surface of the lid 101, together with the side surface of the lid 101 and the partition 13, form a closed sound cavity 11.

[0056] The inner liner 104 of the lid is made of silicone or plastic. The inner liner 104 is glued or snapped onto the side of the lid 101 near the body 102 by means of adhesive, and its surface shape matches the receiving cavity 103 of the body 102, so as to fit the outer contour of the earphone.

[0057] A mounting cavity 12 is formed between the inner liner 104 of the cover, the top surface of the cover 101, the other opposite side of the cover 101, and the partition 13. The other side of the cover 101 is positioned opposite the side forming the sound cavity 11. The mounting cavity 12 is used to mount the microphone assembly 22 for voice pickup and communication.

[0058] In one embodiment, the partition 13 comprises at least two sections, one section being fixedly connected to the top surface of the lid 101, and the other section being fixedly connected to the side of the lid liner 104 away from the box body 102. The partition 13 is disposed between the top surface of the lid 101 and the lid liner 104.

[0059] In one embodiment, the partition 13 further includes a sound-insulating pad. The sound-insulating pad is disposed between the two partitions 13 to seal the sound cavity 11 or the mounting cavity 12, prevent sound transmission, and improve the sound quality of the sound cavity 11.

[0060] The sound insulation pad is made of polyurethane material. The sound insulation pad is glued to the partition 13 to prevent vibration and sound leakage generated when the speaker 211 is working, reduce sound reflection and reverberation inside the cover 101, and improve the clarity and purity of the sound.

[0061] In one embodiment, the speaker 211 and the diaphragm 212 are fixed at a distance from each other on the side of the case cover 101 opposite to the case cover liner 104, i.e., the top surface of the case cover 101. A cushioning material is provided between the speaker 211 and the case cover liner 104. The cushioning material is foam. The foam is glued to the case cover 101. When the charging case is subjected to external impact or vibration, the cushioning material can effectively absorb and disperse energy, reducing the impact force on the speaker 211, protecting the speaker 211 from damage, and preventing noise caused by the speaker 211 vibrating and colliding with the case cover liner 104.

[0062] Combination Figure 3 As shown, Figure 3 This is a schematic diagram of the structure of the sound outlet 14 provided in one embodiment of this application. In some embodiments, a plurality of evenly distributed sound outlets 14 are provided on the side of the cover 101 where the speaker 211 and the diaphragm 212 are mounted; a dustproof mesh is provided between the speaker 211 and the sound outlet 14, and between the diaphragm 212 and the sound outlet 14.

[0063] Specifically, on the surface of the cover 101 away from the body 102, that is, on the side of the cover 101 where the speaker 211 and diaphragm 212 are installed, a plurality of evenly distributed circular sound holes 14 are provided. The sound holes 14 are made by stamping and have a uniform diameter. The sound holes 14 can effectively guide sound from the inside of the charging case to the outside.

[0064] A dustproof mesh is installed between the speaker 211 and the sound outlet 14, and between the diaphragm 212 and the sound outlet 14. The dustproof mesh is made of fibrous material with extremely small fiber diameters, effectively filtering out fine particles such as dust and hair from the air, preventing damage to the speaker 211 and diaphragm 212. The dustproof mesh is also breathable, ensuring sufficient airflow between the speaker 211 and diaphragm 212 during vibration.

[0065] The charging case also includes a microphone assembly 22, which is disposed within the mounting cavity 12 and is configured to pick up and receive sound.

[0066] The sound receiving assembly 22 includes a microphone 222 and a noise reduction circuit. The microphone 222 is used to capture the user's voice. The first circuit board 221 integrates the noise reduction circuit, which uses digital signal processing technology to effectively suppress ambient noise interference. The first circuit board 221 is fixed inside the cover 101 by screws and positioning posts.

[0067] The first circuit board 221 is electrically connected to the charging assembly 15 via a connector. The connector adopts a pluggable design for easy installation and removal of the circuit board. The first circuit board 221 integrates various electronic components, such as resistors, capacitors, and inductors, for preliminary processing and filtering of the sound signals collected by the microphone 222, thereby improving the quality of the sound signals.

[0068] Two microphones 222, which are condenser microphones, are mounted on the first circuit board 221. The microphones 222 are soldered onto the first circuit board 221. The two microphones 222 are symmetrically distributed on the first circuit board 221, which helps to improve the comprehensiveness of sound acquisition and reduce the interference of environmental noise on the voice signal.

[0069] Combination Figure 5 , Figure 6 As shown, Figure 5 This is a schematic diagram of the structure of the charging component 15 provided in one embodiment of this application. Figure 6 This is a schematic diagram of the back structure of the second circuit board 151 provided in one embodiment of this application.

[0070] In some embodiments, a charging assembly 15 is also included, which is installed within the housing 102. The charging assembly 15 includes a second circuit board 151 and a battery 152, wherein the second circuit board 151 is disposed above the battery 152 and electrically connected to the battery 152.

[0071] The housing 102 includes an inner liner 105, and a second circuit board 151 is disposed between the housing 102 and the inner liner 105. Foam is provided between the battery 152 and the housing 102. The second circuit board 151 is positioned above the battery 152 and is fixed to the housing 102 by multiple screws and positioning posts. The second circuit board 151 and the battery 152 are electrically connected via wires with a protection circuit. The protection circuit prevents the battery 152 from overcharging, over-discharging, short-circuiting, or other abnormal conditions, ensuring the safety and lifespan of the battery 152.

[0072] In one embodiment, the charging assembly 15 further includes a spring probe 153, one end of which is mounted on the second circuit board 151 and the other end extends out of the receiving cavity 103 for connection with the charging contacts of the wireless earphone 30.

[0073] Specifically, the charging assembly 15 also includes four spring probes 153, which correspond to the four charging contacts at the bottom of the wireless earphone 30. One end of the spring probe 153 is mounted on the second circuit board 151 by a soldering process, and the other end extends into the receiving cavity 103 on the inner surface of the housing 102.

[0074] The spring probe 153 is made of copper alloy. When the wireless earphone 30 is placed inside the receiving cavity 103, the spring probe 153 contacts the charging contacts of the earphone under its own elastic force, achieving a stable charging connection.

[0075] Combination Figure 5 As shown, Figure 5 This is a schematic diagram of the back structure of the second circuit board 151 provided in one embodiment of this application.

[0076] In some embodiments, one end of the spring switch 154 is mounted on the surface of the second circuit board 151 away from the inner lining of the housing 102, and the other end has a gap with the second circuit board 151. It is configured such that when the housing cover 101 is in the open state, pressing the spring switch 154 will turn it on.

[0077] Specifically, one end of the spring-loaded switch 154 is fixed to the second circuit board 151 by welding, and the other end has a gap with the second circuit board 151.

[0078] When the lid 101 is open, the connecting plate 106 at the edge of the lid 101 presses the spring switch 154, causing it to deform and become conductive with the second circuit board 151 to control the start of the charging case. When the lid 101 is closed, the spring switch 154 returns to its original state and disconnects from the second circuit board 151.

[0079] In one embodiment, the charging assembly 15 further includes a power interface 156 and a charging interface 155. The power interface 156 is located on one side of the spring switch 154 and is used to connect to the battery 152. The charging interface 155 is located on one side of the second circuit board 151 and is used to connect to an external power source.

[0080] Specifically, the power interface 156 is located on one side of the spring-loaded switch 154 and is connected to the battery 152 via a wire to transfer electrical energy from the external power source to the battery 152 for charging.

[0081] The charging interface 155 is located on one side of the second circuit board 151 and is connected to the charging management chip on the second circuit board 151 via a circuit for connecting to an external power source. The charging interface 155 adopts a Type-C interface, which is universal and enables charging or data transmission functions.

[0082] When the charging case is connected to an external power source, the charging management chip will intelligently allocate the charging current according to the power status of the battery 152 and the earphones to charge the battery 152.

[0083] In one embodiment, a display lamp 157 and a light guide column 158 are also included. The display lamp 157 is disposed on one side of the second circuit board 151, and the light guide column 158 is disposed below the display lamp 157. A light leakage hole is provided on the outer side of the housing 102.

[0084] Specifically, the indicator light 157 is an LED light, located on the side of the second circuit board 151 near the side of the housing 102. The indicator light 157 includes a red light and a green light, which are used to indicate the power status or connection status of the charging box, respectively. A flashing red light indicates low power or charging, while a solid green light indicates a full charge, or a solid green light indicates connection to an external device.

[0085] A light guide post 158, made of PMMA material, is positioned below the indicator light 157. The light guide post 158 ​​is fixed to the housing 102 via a snap-fit ​​structure, with one end attached to the indicator light 157 and the other end extending to a corresponding circular light-leaking hole on the outer side of the housing 102. The light guide post 158 ​​guides the light emitted from the indicator light 157 to the light-leaking hole, allowing the user to observe the charging case's operational status.

[0086] Combination Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of the charging component 15 provided in one embodiment of this application. In some embodiments, a power switch 191 and a volume button 192 are respectively provided on both sides of the housing 102, and the power switch 191 and the volume button 192 are respectively connected to the second circuit board 151.

[0087] Specifically, a power button 191 and a volume button 192 are respectively located on both sides of the housing 102. Both the power button 191 and the volume button 192 are made of plastic and are glued to the corresponding button holes on the housing 102. Inside the button holes is a metal spring; one end of the metal spring contacts a contact point on the second circuit board 151, and the other end connects to the bottom of the button. When the user presses the button, the button pushes the metal spring to connect with the contact point on the second circuit board 151, thus enabling the corresponding function operation.

[0088] The power switch 191 is used to control the power on / off of the charging case, or to answer or hang up calls, or to play or pause music. The volume buttons 192 are divided into volume up and volume down buttons; users can adjust the volume by short-pressing the volume buttons 192.

[0089] Combination Figure 6 As shown, Figure 6 This is a partial structural diagram of the lid 101 and the body 102 provided in one embodiment of this application.

[0090] In some embodiments, the device further includes a bracket 16, a rotating shaft 17, and a torsion spring 18. The bracket 16 is disposed inside the housing 102; the rotating shaft 17 is mounted on the bracket 16; one end of the connecting plate 106 of the housing 102 is sleeved on the outer periphery of the rotating shaft 17; the torsion spring 18 is sleeved on the rotating shaft 17; one end of the torsion spring 18 abuts against the bracket 16, and the other end abuts against the connecting plate 106; the connecting plate 106 is configured to abut against the spring-loaded switch 154.

[0091] Specifically, the bracket 16 is made of injection-molded plastic, and the part that mates with the rotating shaft 17 is U-shaped. Symmetrical mounting holes for the rotating shaft 17 are provided on both side walls, and its bottom is fixed inside the housing 102 with screws. The rotating shaft 17 is a rod-shaped structure made of stainless steel or plastic. The rotating shaft 17 is passed through the mounting holes on both sides of the bracket 16 to ensure that it rotates on the bracket 16.

[0092] The helical portion of the torsion spring 18 is fitted onto the rotating shaft 17. One end of the torsion spring 18 is a straight arm that abuts against the bracket 16; the other end of the torsion spring 18 is a bent arm that abuts against the connecting plate 106 of the cover 101. The torsion spring 18 is in a certain pre-tightened state during installation, providing torque for the opening and closing of the cover 101, so that the cover 101 has a certain damping feel during opening and closing, avoiding the situation of opening too quickly or closing incompletely.

[0093] A connecting plate 106 extends from one end of the cover 101 near the body 102. The connecting plate 106 is a flat, elongated strip with a circular groove at one end. During installation, the circular groove of the connecting plate 106 is fitted onto the rotating shaft 17, allowing the connecting plate 106 to rotate around the shaft 17. The other end of the connecting plate 106 is configured to abut against a spring-loaded switch 154. When the cover 101 is opened or closed, the connecting plate 106 rotates accordingly, pressing or releasing the spring-loaded switch 154.

[0094] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A wireless earphone charging case, characterized in that, include: The housing (10) has an independent sound cavity (11). An external speaker assembly (20) is disposed within the sound cavity (11).

2. The wireless earphone charging case according to claim 1, characterized in that, The external sound-emitting assembly (20) includes a loudspeaker (211) and at least one diaphragm (212).

3. The wireless earphone charging case according to claim 2, characterized in that, The housing (10) includes a cover (101) and a body (102), the body (102) including a receiving cavity (103) configured to hold a wireless earphone (30); the cover (101) has a sound cavity (11), a mounting cavity (12) and a partition (13) disposed between the sound cavity (11) and the mounting cavity (12).

4. The wireless earphone charging case according to claim 3, characterized in that, The lid (101) includes a lid liner (104), which is disposed on the side of the lid (101) near the box body (102). The lid liner (104) forms the sound cavity (11) between the lid liner (104), the top surface of the lid (101), the side surface of the lid (101), and the partition (13). The mounting cavity (12) is formed between the lid liner (104), the top surface of the lid (101), the other opposite side surface of the lid (101), and the partition (13).

5. The wireless earphone charging case according to claim 4, characterized in that, The partition (13) includes at least two sections, one of which is fixedly connected to the top surface of the lid (101), and the other section is fixedly connected to the side of the lid liner (104) away from the box body (102); the partition (13) also includes a sound insulation pad, which is disposed between the two partition sections (13).

6. The wireless earphone charging case according to claim 4, characterized in that, The speaker (211) and diaphragm (212) are fixedly disposed on the side of the cover (101) opposite to the inner liner (104), and a cushioning material is provided between the speaker (211) and the inner liner (104).

7. The wireless earphone charging case according to any one of claims 3-6, characterized in that, The cover (101) has a plurality of evenly distributed sound holes (24) on one side where the speaker (211) and diaphragm (212) are installed; a dustproof mesh is provided between the speaker (211) and the sound holes (24), and between the diaphragm (212) and the sound holes (24).

8. The wireless earphone charging case according to any one of claims 3-6, characterized in that, The mounting cavity (12) is provided with a sound receiving assembly (22), which includes a first circuit board (221) and a microphone (222), and the microphone (222) is mounted on the first circuit board (221).

9. The wireless earphone charging case according to any one of claims 3-6, characterized in that, It also includes a charging assembly (15) installed inside the housing (102), the charging assembly (15) including a second circuit board (151) and a battery (152); It also includes a spring switch (154), one end of which is mounted on one side surface of the second circuit board (151), and the other end has a gap with the second circuit board (151). It is configured such that when the cover (101) is in the open state, squeezing the spring switch (154) will turn it on.

10. The wireless earphone charging case according to claim 9, characterized in that, It also includes a bracket (16), a rotating shaft (17), and a torsion spring (18). The bracket (16) is disposed inside the housing (102). The rotating shaft (17) is mounted on the bracket (16). One end of the connecting plate (106) of the housing cover (101) is sleeved on the outer periphery of the rotating shaft (17). The torsion spring (18) is sleeved on the rotating shaft (17). One end of the torsion spring (18) abuts against the bracket (16), and the other end abuts against the connecting plate (106). The connecting plate (106) is configured to abut against the spring-loaded switch (154).

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