Earphone assembly

By introducing a deformable element into the earphone assembly, the charging component contact is automatically disconnected according to changes in battery voltage, solving the problem of continuous charging after the TWS earphones are fully charged, thus extending battery life and improving safety.

CN115379343BActive Publication Date: 2025-11-25VIVO MOBILE COMM CO LTD
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Patent Information

Application Number
CN202211219120.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-30
Publication Date
2025-11-25
Estimated Expiration
2042-09-30

AI Technical Summary

Technical Problem

Existing TWS earbuds remain connected to the charging case and continue charging even after being fully charged, which affects battery life and poses safety hazards.

Method used

Design an earphone assembly in which a deformable element is disposed within the earphone and earphone case. The length of the deformable element changes with the battery voltage to automatically disconnect the contact of the charging components to prevent floating charging. This includes the connection or disconnection of the contacts of the first and second charging components, and the automatic disconnection is achieved through the interaction between the deformable element and the bracket.

Benefits of technology

It effectively prevents headphone batteries from floating, extends battery life, eliminates safety hazards, and improves charging stability and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an earphone assembly, belonging to the technical field of wireless earphones. The earphone assembly comprises an earphone and an earphone box. The earphone comprises a battery, a first charging assembly and a deformation piece. The battery and the first charging assembly are electrically connected, the deformation piece is connected in series with the battery, and the length of the deformation piece changes with the voltage of the battery. The earphone box comprises a containing groove, the containing groove is internally provided with a second charging assembly and a support, the first charging assembly and the second charging assembly are opposite when the earphone is placed in the containing groove, and one end of the deformation piece is in contact with the support. When the voltage of the battery is lower than a first threshold value, the deformation piece has a first length, and the first charging assembly and the second charging assembly are in contact and conductive. When the voltage of the battery is higher than the first threshold value, the deformation piece has a second length, and the first charging assembly and the second charging assembly are separated and disconnected. In the embodiment of the application, the automatic disconnection of the earphone after the voltage reaches a certain threshold value has the beneficial effects of preventing floating charging of the battery and improving the service life of the battery.
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Description

Technical Field

[0001] This application belongs to the field of wireless headphone technology, and specifically relates to a headphone component. Background Technology

[0002] With the continuous development of electronic technology, users are paying more attention to the convenience of accessories such as headphones when using electronic devices. TWS (True Wireless Stereo) headphones can get rid of the restrictions of headphone wires, and their advantages such as small size, portability and good sound quality are loved by users and are becoming increasingly popular.

[0003] In related technologies, the earphone assembly typically includes an earphone case and a pair of TWS earphones, with the earphones being charged via a charging slot within the earphone case. Both the TWS earphones and the earphone case are equipped with magnetic components, allowing them to be detachably connected via magnetic attraction, thus enabling the earphone case to charge the TWS earphones.

[0004] However, TWS earbuds remain connected to the charging case even after being fully charged, causing the charging case to continuously charge the TWS earbuds. Prolonged float charging can affect battery life and also poses certain safety hazards. Summary of the Invention

[0005] The purpose of this application is to provide an earphone assembly that can solve the problem in the prior art where the earphone assembly continues to charge after being fully charged, affecting battery life.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows:

[0007] This application provides an earphone assembly, including earphones and an earphone case. The earphones include a battery, a first charging component, and a deformable component. The battery and the first charging component are electrically connected, and the deformable component is connected in series with the battery. The length of the deformable component changes with the battery voltage. The earphone case includes a receiving slot, in which a second charging component and a support are disposed. When the earphones are placed in the receiving slot, the first charging component and the second charging component are opposite to each other, and one end of the deformable component contacts the support. When the battery voltage is lower than a first threshold, the deformable component has a first length, and the first charging component and the second charging component are in contact and connected. When the battery voltage is higher than the first threshold, the deformable component has a second length, and the first charging component and the second charging component are separated and disconnected. The second length is greater than the first length.

[0008] In this embodiment, the earphone assembly includes earphones and an earphone case. The earphone case is configured to charge the earphones while they are placed inside. When the earphones are placed inside the earphone case and the first charging component and the second charging component are in contact, the earphone case charges the earphones. A battery is provided to supply power to the earphones during use. The first charging component is connected to the battery to charge it. A deformable component is electrically connected to the battery, and the length of the deformable component changes with the battery voltage. The earphone case includes a receiving slot to provide space for the earphones. The second charging component is connected to the first charging component, and the connection between the first and second charging components enables the earphone case to charge the earphones. A bracket and the deformable component are disposed opposite to each other, and the bracket is configured to contact the deformable component. The deformable component changes its length to separate from or abut against the bracket, further enabling the first and second charging components to be in contact or disconnected. When the battery voltage is below a first threshold, the deformable component has a first length. At this time, the deformable component separates from the bracket, the first and second charging components are in contact, and the earphone case charges the earphones. When the battery voltage exceeds a first threshold, the deformable component reaches a second length. At this point, the deformable component contacts the bracket, and the first and second charging components separate, preventing the earphone case from charging the earphones. The second length is greater than the first length. Understandably, when the deformable component is at its second length, it abuts against the bracket, pushing the earphones away from the earphone case, thus separating the first and second charging components and disconnecting the earphone case from the earphones. In this embodiment, the elongation of the deformable component and the abutment between it and the bracket achieve the separation of the first and second charging components when the battery voltage exceeds a first threshold. This automatic disconnection when the earphone voltage reaches a certain threshold prevents battery float charging, improves battery life, and eliminates safety hazards.

[0009] It should be noted that the first threshold can be determined according to the actual situation. The setting of the first threshold can be based on the value of a fully charged battery, specifically determined according to the battery capacity of the headphones in actual applications. This embodiment is not limited in any way. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the deformable component at the second length in an embodiment of this application;

[0011] Figure 2 This is a schematic diagram of the deformable component at its first length in an embodiment of this application;

[0012] Figure 3 This is a schematic diagram of the headphone case structure in the embodiment of this application where the elastic element is in a compressed state;

[0013] Figure 4 This is a schematic diagram of the headphone box structure with the elastic element in its natural state in an embodiment of this application;

[0014] Figure 5 This is a schematic diagram of the contact and conduction between the first charging component and the second charging component in an embodiment of this application;

[0015] Figure 6 This is a schematic diagram of the structure in an embodiment of this application where the first charging component and the second charging component are separated and disconnected;

[0016] Figure 7 This is a schematic diagram comparing the height of the earphone assembly when the first charging component and the second charging component are in contact and when the first charging component and the second charging component are separated and disconnected in the embodiments of this application;

[0017] Figure 8 This is a top view of the second charging component in an embodiment of this application;

[0018] Figure 9 This is a bottom view of the first charging component in an embodiment of this application.

[0019] Explanation of reference numerals in the attached figures:

[0020] 10. Earphone; 11. Battery; 12. First charging component; 13. Deformable element; 121. First charging spring; 20. Earphone case; 21. Receiving slot; 22. Second charging component; 23. Bracket; 221. Elastic element; 222. Second charging spring; 30. Magnetic attraction device; 31. First magnetic attraction structure; 32. Second magnetic attraction structure. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0023] The headphone assembly provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0024] See Figures 1 to 9 This application provides an earphone assembly, including an earphone 10 and an earphone case 20. The earphone 10 includes a battery 11, a first charging component 12, and a deformable component 13. The battery 11 and the first charging component 12 are electrically connected, and the deformable component 13 is connected in series with the battery 11. The length of the deformable component 13 changes with the voltage of the battery 11. The earphone case 20 includes a receiving slot 21, in which a second charging component 22 and a bracket 23 are disposed. When the earphone 10 is placed in the receiving slot 21, the first charging component 12 and the second charging component 22 are opposite to each other, and one end of the deformable component 13 contacts the bracket 23. When the voltage of the battery 11 is lower than a first threshold, the deformable component 13 has a first length, and the first charging component 12 and the second charging component 22 are in contact and connected. When the voltage of the battery 11 is higher than the first threshold, the deformable component 13 has a second length, and the first charging component 12 and the second charging component 22 are separated and disconnected. The second length is greater than the first length.

[0025] TWS stands for True Wireless Stereo, meaning truly wireless stereo sound. The biggest feature of the TWS earbuds 10 is their wireless design, eliminating the hassle of tangled earphone wires. Utilizing integrated optical sensors, the earbuds 10 automatically connect and connect when removed from the charging case 20. Compared to ordinary Bluetooth earbuds, the TWS earbuds 10 are smaller, offer better sound quality, and provide greater stability, receiving widespread praise from users.

[0026] In this embodiment, the headphone assembly includes headphones 10 and a charging case 20. The charging case 20 is configured to charge the headphones 10 while they are placed inside. When the headphones 10 are placed inside the charging case 20 and the first charging component 12 and the second charging component 22 are in contact, the charging case 20 charges the headphones 10. The battery 11 is configured to provide power to the headphones 10 during use. The first charging component 12 is connected to the battery 11 to charge the battery 11. A deformable member 13 is electrically connected to the battery 11, and the length of the deformable member 13 changes with the voltage of the battery 11. The charging case 20 includes a receiving slot 21, which provides space for placing the headphones 10. The second charging component 22 is configured to connect to the first charging component 12, and the charging case 20 charges the headphones 10 through the connection between the first charging component 12 and the second charging component 22. The bracket 23 and the deformable component 13 are arranged opposite to each other, and the bracket 23 is configured to contact the deformable component 13. The deformable component 13 deforms to change its length, thus separating from or contacting the bracket 23, further enabling or disengaging the contact between the first charging assembly 12 and the second charging assembly 22. When the voltage of the battery 11 is below a first threshold, the deformable component 13 has a first length. At this time, the deformable component 13 separates from the bracket 23, and the first charging assembly 12 and the second charging assembly 22 are in contact, allowing the earphone case 20 to charge the earphone 10. When the voltage of the battery 11 is above the first threshold, the deformable component 13 has a second length. At this time, the deformable component 13 contacts the bracket 23, and the first charging assembly 12 and the second charging assembly 22 are disengaged, preventing the earphone case 20 from charging the earphone 10. The second length is greater than the first length. Understandably, when the deformable element 13 is at its second length, it abuts against the bracket 23, pushing the earphone 10 outwards away from the earphone case 20. This separates the first charging component 12 and the second charging component 22, thus disconnecting the earphone case 20 from the earphone 10. In this embodiment, the elongation of the deformable element 13 and the abutment between it and the bracket 23 enable the separation of the first charging component 12 and the second charging component 22 when the battery voltage is higher than a first threshold. This achieves automatic disconnection of the earphone 10 after the voltage reaches a certain threshold, preventing float charging of the battery 11, improving battery life, and eliminating safety hazards.

[0027] It should be noted that the first threshold can be determined according to the actual situation. The setting of the first threshold can be based on the value of the fully charged battery 11, and specifically determined according to the capacity of the earphone battery 11 in the actual application. This embodiment is not limited in this respect.

[0028] Optionally, in this embodiment, the earphone assembly further includes a magnetic attraction device 30, which includes a first magnetic attraction structure 31 and a second magnetic attraction structure 32. The first magnetic attraction structure 31 is disposed inside the earphone 10 and on the side of the battery 11 facing away from the first charging component 12. The second magnetic attraction structure 32 is disposed inside the receiving slot 21 and on the side of the bracket 23 facing away from the second charging component 22. The opposing sides of the first magnetic attraction structure 31 and the second magnetic attraction structure 32 have opposite magnetic properties, and when the earphone 10 is disposed in the receiving slot 21, the first magnetic attraction structure 31 and the second magnetic attraction structure 32 attract each other.

[0029] In this embodiment, the magnetic attraction device 30 includes a first magnetic attraction structure 31 and a second magnetic attraction structure 32. The magnetic attraction device 30 is configured to attract the earphone case 20 and the earphone 10 to each other, thus magnetically connecting them and enabling the earphone case 20 to charge the earphone 10 when it is placed inside the earphone case 20. The first magnetic attraction structure 31 and the second magnetic attraction structure 32 attract each other. The first magnetic attraction structure 31 is fixedly connected to the battery 11 and is located on the side of the battery 11 away from the first charging component 12. The first charging component 12 is connected to the side of the first magnetic attraction structure 31 near the earphone case 20. One end of the deformable member 13 is connected to the side of the first magnetic attraction structure 31 near the earphone case 20, and the other end of the deformable member 13 extends in the direction of the earphone case 20. The second magnetic attraction structure 32 is fixedly connected to the receiving slot 21. The second charging component 22 is connected to the side of the second magnetic attraction structure 32 near the earphone 10. One end of the bracket 23 can be fixedly connected to the side of the second magnetic attraction structure 32 near the earphone 10. In this embodiment, the first magnetic structure 31 disposed in the earphone 10 and the second magnetic structure 32 disposed in the earphone case 20 can attract the earphone 10 and the earphone case 20 to each other. Furthermore, the magnetic connection between the first charging component 12 and the second charging component 22 further enhances the attraction between the earphone case 20 and the earphone 10, enabling the earphone case 20 to charge the earphone 10. The magnetic device 30, while achieving the alignment connection between the first charging component 12 and the second charging component 22, also strengthens the stability of the connection between the earphone 10 and the earphone case 20, thus improving the stability of the connection between the first charging component 12 and the second charging component 22.

[0030] Optionally, in this embodiment of the application, the first charging component 12 includes a first charging spring 121; the second charging component 22 includes an elastic member 221 and a second charging spring 222, one end of the elastic member 221 is connected to the second magnetic attraction structure 32, and the other end of the elastic member 221 is connected to the second charging spring 222; when the first charging spring 121 and the second charging spring 222 are in contact and connected, the elastic member 221 is in a compressed state.

[0031] In this embodiment, the first charging component 12 includes a first charging spring 121, and the second charging component 22 includes an elastic member 221 and a second charging spring 222. When the first charging spring 121 and the second charging spring 222 are in contact, the earphone case 20 charges the earphone 10. One end of the elastic member 221 is connected to the second magnetic attraction structure 32, and the other end of the elastic member 221 is connected to the second charging spring 222. In practical applications, the first magnetic attraction structure 31 and the second magnetic attraction structure 32 attract each other, causing the first charging spring 121 and the second charging spring 222 to contact each other, thereby connecting the first charging component 12 and the second charging component 22 and further enabling the earphone case 20 to charge the earphone 10. At this time, the elastic member 221 is in a compressed state. In this embodiment, the elastic member 221 in the compressed state continuously applies a spring force close to the first elastic component to the second charging spring 222, making the second elastic component and the first elastic component in close contact. This has the beneficial effect of preventing the first charging spring 121 and the second charging spring 222 from separating during the charging process, thus preventing power outage during charging.

[0032] Optionally, in this embodiment, the first magnetic attraction structure 31 is fixedly connected to the earphone 10. When the earphone 10 is placed in the receiving slot 21 and the voltage of the battery 11 changes from below a first threshold to above a first threshold, the elastic member 221 switches from a compressed state to a free state, and the earphone 10 moves away from the earphone case 20 along the elongation direction of the deformation member 13, so that the first charging component 12 and the second charging component 22 are separated. The first magnetic attraction structure 31

[0033] In this embodiment, when the earphone 10 is placed in the receiving slot 21 and the voltage of the battery 11 is lower than the first threshold, the first magnetic attraction structure 31 and the second magnetic attraction structure 32 attract each other, the elastic member 221 is in a compressed state, and the first charging spring 121 and the second charging spring 222 are in contact and connected. At this time, the length of the deformable member 13 is the first length. When the earphone 10 is placed in the receiving slot 21 and the voltage of the battery 11 is higher than the first threshold, the elastic member 221 is in a natural state, and the first charging spring 121 and the second charging spring 222 are separated. At this time, the deformable member 13 and the bracket 23 abut against each other, and the length of the deformable member 13 is the second length. When the earphone 10 is placed in the receiving slot 21 and the voltage of the battery 11 changes from below the first threshold to above the first threshold, the deformable member 13 gradually extends towards the support 23 and abuts against the support 23. The length of the deformable member 13 gradually changes from the first length to the second length, the elastic member switches from the compressed state to the natural state, and the first charging spring 121 and the second charging spring 222 gradually separate from the contact conduction.

[0034] It should be noted that the two ends of the deformable component 13 are connected to the positive and negative terminals of the battery 11, respectively. The voltage of the deformable component 13 comes from the battery 11. Therefore, the change in the charge of the battery 11 affects the deformation and deformation amount of the deformable component 13.

[0035] It should also be noted that the first charging spring 121 includes a first charging positive electrode and a first charging negative electrode, and the second charging spring 222 includes a second charging positive electrode and a second charging negative electrode. The first charging spring 121 and the second charging spring 222, which are in contact with each other, enable the earphone case 20 to charge the earphone 10.

[0036] Furthermore, when the earphone 10 is in a charging state, the first charging spring 121 and the second charging spring 222 come into contact due to the mutual attraction between the first magnetic structure 31 and the second magnetic structure 32. As the earphone case 20 charges the earphone 10, the charge level of the earphone 10 battery 11 gradually changes from a lower level to a higher level. During the charging process, as the charge level of the battery 11 gradually increases, the deformable member 13 gradually extends towards the bracket 23 and abuts against it.

[0037] It should be noted that when the charge of the battery 11 in the earphone 10 increases from 10% to 90%, the voltage change of the battery 11 is small, that is, the voltage change to the deformation element 13 is small, and correspondingly, the length change of the deformation element 13 is small during the above stage. When the charge of the battery 11 in the earphone 10 increases from 90% to 100%, the voltage change of the battery 11 is large, that is, the voltage change to the deformation element 13 is large, and correspondingly, the length change of the deformation element 13 is large during the above stage.

[0038] It should also be noted that as the battery 11's charge gradually increases, the battery 11 voltage increases. Due to the inverse piezoelectric effect, the internal stress of the deformable element 13 increases, causing it to stretch in the electric field direction. The deformable element 13 gradually elongates, and it abuts against the bracket 23. Under the action of the force between the bracket 23 and the deformable element 13, as well as the elastic force of the elastic element 221, the earphone 10 moves away from the receiving slot 21, causing the earphone 10 and the earphone case 20 to gradually move away from each other. The compression of the corresponding elastic element 221 also gradually decreases (the first charging spring 121 and the second charging spring 222 are still in effective contact), and the distance between the corresponding first magnetic attraction structure 31 and the second magnetic attraction structure 32 gradually increases, and the magnetic attraction force also decreases accordingly. The distance between the first magnetic attraction structure 31, which is fixedly connected to the battery 11, and the second magnetic attraction structure 32, which is fixedly connected to the receiving slot 21, increases. Understandably, as the battery charge of 11 increases, the distance between the first magnetic structure 31 and the second magnetic structure 32 increases, and the magnetic attraction between the first magnetic structure 31 and the second magnetic structure 32 gradually decreases. In this embodiment, as the battery charge increases, the magnetic attraction gradually decreases, and the attraction between the earphone 10 with a higher voltage and the earphone case 20 is less than that with a lower voltage, making it easier for the user to remove the fully charged earphone 10 from the earphone case 20.

[0039] Furthermore, when the voltage of the battery 11 is lower than the first threshold, there is a strong attraction between the first magnetic structure 31 and the second magnetic structure 32, which can tightly connect the earphone 10 and the earphone case 20 to achieve charging, and has the beneficial effect of preventing the earphone from separating from the earphone case 20 before it is fully charged.

[0040] Optionally, in this embodiment, when the elastic member 221 is in its natural state, the length of the elastic member 221 is a third length; when the elastic member 221 is in its compressed state, the length of the elastic member 221 is a fourth length; the difference between the second length and the first length is a first difference, and the difference between the third length and the fourth length is a second difference; wherein, the first difference is greater than the second difference.

[0041] In this embodiment, the lengths of the deformable element 13 and the elastic element 221 change with the state of the earphone 10. When the earphone case 20 is charging the earphone 10, the deformable element 13 and the bracket 23 are separated, and the elastic element 221 is in a compressed state. At this time, the length of the deformable element 13 is the first length, and the length of the elastic element 221 is the fourth length. When the earphone case 20 is not charging the earphone 10, the deformable element 13 and the bracket 23 are in contact, and the elastic element 221 is in a natural state. At this time, the length of the deformable element 13 is the second length, and the length of the elastic element 221 is the fourth length. During the process of the voltage of the battery 11 changing from below the first threshold to above the first threshold, the change in length of the deformable element 13 is the difference between the second length and the first length, i.e., the first difference; the change in length of the elastic element 221 is the difference between the third length and the fourth length, i.e., the second difference. The first difference is greater than the second difference, that is, the elongation of the deformable part 13 is greater than the elongation of the elastic part 221. In this way, the interaction between the deformable part 13 and the bracket 23 lifts the earphone 10, causing the first charging spring 121 and the second charging spring 222 to separate, thereby achieving power disconnection between the earphone 10 and the earphone box 20.

[0042] Optionally, in this embodiment of the application, the diameter of the first charging component 12 is D, and the diameter of the second charging component 22 is d, where D > d.

[0043] In this embodiment, the diameter of the bottom surface of the first charging component 12 is D, and the diameter of the second charging component 22 is d, where D > d. In practical applications, when the earphone 10 is placed in the earphone case 20, the diameter D of the first charging component is larger than the diameter d of the second charging component, causing the second charging component 22 to be nested within the first charging component 12. This has the beneficial effect of enhancing the connection stability between the first charging component 12 and the second charging component 22.

[0044] Optionally, in the embodiments of this application, the magnetic attraction device 30 is either a permanent magnet or an electromagnet.

[0045] In this embodiment, the magnetic attraction device 30 can be a permanent magnet, which can be magnetically connected to the battery 11 and the receiving slot 21 respectively. The permanent magnets attract each other to achieve mutual attraction between the battery 11 and the receiving slot 21. The magnetic attraction device 30 can also be an electromagnet, which can be connected to the battery 11 and the receiving slot 21 respectively. The electromagnet connected to the battery 11 can be powered by the battery in the TWS earphone 10, and the electromagnet connected to the receiving slot 21 can be powered by the earphone case 20. The electromagnets attract each other to achieve magnetic connection between the battery 11 and the receiving slot 21.

[0046] Optionally, in this embodiment, the deformable member 13 is made of piezoelectric material. When the voltage of the battery 11 changes from below the first threshold to above the first threshold, the deformable member 13 gradually elongates towards the support 23.

[0047] In this embodiment, the deformable element 13 is made of piezoelectric material, which is a material that generates a voltage between its two ends when subjected to pressure or that deforms under the action of an external electric field. When the voltage across the deformable element 13 increases (the voltage of the battery 11 changes from below the first threshold to above the first threshold), the piezoelectric deformable element 13 deforms (elongates).

[0048] Optionally, this application embodiment also provides an earphone 10, which can be carried in an earphone 10 case. The earphone 10 includes a first earphone and a second earphone. The first earphone includes a first magnetic structure 31, a first battery, a first deformable element and a first charging component 12. The second earphone includes a first magnetic structure 31, a second battery, a second deformable element and a first charging component 12.

[0049] The first battery is connected to the first charging component 12, the first deformable element is connected in series with the first battery, and the first magnetic structure 31 is disposed on the side of the first battery away from the first deformable element; the second battery is connected to the first charging component 12, the second deformable element is connected in series with the second battery, and the first magnetic structure 31 is disposed on the side of the second battery away from the second deformable element.

[0050] The first magnetic structure 31 attracts the earphone 10 box, the first deformable component and the second deformable component are both in contact with the earphone 10 box, and the first charging component 12 charges the earphone 10 by connecting to the earphone box 20.

[0051] In this embodiment, the earphone 10 is adapted to the earphone case 20 and is charged through the earphone case 20. The earphone 10 includes a first earphone and a second earphone. The first earphone includes a first magnetic structure 31, a first battery, a first deformable element, and a first charging component 12. The first battery and the first charging component 12 are connected, the first deformable element and the first battery are connected in series, and the first magnetic structure 31 is disposed on the side of the first battery away from the first deformable element. The second earphone includes a first magnetic structure 31, a second battery, a second deformable element, and the first charging component 12. The second battery and the first charging component are connected, the second deformable element and the second battery are connected in series, and the first magnetic structure 31 is disposed on the side of the second battery away from the second deformable element. In practical applications, when the first earphone and the second earphone are placed in the earphone case 20, the first magnetic structure 31 in the first earphone and the second earphone attract each other to the earphone case 20, and the first deformable element and the second deformable element are in contact with the earphone case 20. The first charging component 12 charges the first battery in the first earphone and the second battery in the second earphone by connecting to the earphone case 20.

[0052] Optionally, this application embodiment also provides an earphone case 20 for housing earphones 10. The earphone case 20 includes a receiving slot 21, a bracket 23, and a second charging component 22, with the bracket 23 and the second charging component 22 disposed in the receiving slot 21. When the earphones 10 are in the receiving slot 21, the earphones 10 and the second charging component 22 are in contact and connected. When the earphones 10 are in the receiving slot 21 and the bracket 23 abuts against the earphones 10, the earphones 10 and the second charging component 22 are separated and disconnected. In this application embodiment, the bracket 23 is configured to cooperate with the deformation member 13 to achieve contact between the deformation member 13 and the bracket 23 when the voltage of the battery 11 is higher than a first threshold, thereby separating and disconnecting the first charging component 12 and the second charging component 22. When the voltage of the battery 11 is lower than the first threshold, the first charging component 12 and the second charging component 22 are in contact and connected, thereby enabling the earphone case 10 to charge the earphones 10.

[0053] Furthermore, when the voltage of the battery 11 in the earphone 10 is higher than the first threshold, the battery power of the earphone 10 is high, the length of the deformable member 13 is the second length, and the deformable member 13, which has deformed and extended to the second length, extends towards the bracket 23 and abuts against the bracket 23. There is an interaction force between the deformable member 13 and the bracket 23. Under the action of this force and the spring force, the first charging spring 121 and the second charging spring 222 separate, and the spring naturally extends to its natural state. Because the first charging spring 121 and the second charging spring 222 separate, power is cut off between the earphone case 20 and the TWS earphone 10. In this embodiment, when the voltage of the battery 11 in the earphone 10 is higher than the first threshold, automatic power cut-off between the earphone case 20 and the earphone 10 is achieved, preventing the earphone case 20 from floating-charging the earphone 10, which has the beneficial effects of improving battery life and eliminating safety hazards.

[0054] It should also be noted that when the earphone 10 is still placed in the earphone case 20, and the voltage of the battery 11 in the earphone 10 is higher than the first threshold, the corresponding first charging spring 121 and second charging spring 222 are completely disconnected, and charging stops. At this time, the distance between the corresponding first magnetic attraction structure 3122 and second magnetic attraction structure 32 reaches its maximum value, and the attraction force reaches its minimum value. Thus, automatic charging disconnection is achieved.

[0055] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0056] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An earphone assembly, characterized in that, Includes earphones and earphone case; The earphone includes a battery, a first charging component, and a deformable element. The battery and the first charging component are electrically connected. The deformable element is connected in series with the battery, and the length of the deformable element changes with the voltage of the battery. The deformable element is made of piezoelectric material. The earphone case includes a receiving slot, in which a second charging component and a bracket are disposed. When the earphone is placed in the receiving slot, the first charging component and the second charging component are opposite to each other, and one end of the deformable member is in contact with the bracket. When the battery voltage is below a first threshold, the deformable member has a first length, and the first charging component and the second charging component are in contact and connected; when the battery voltage is above the first threshold, the deformable member has a second length, the deformable member and the bracket abut together, and the first charging component and the second charging component are separated and disconnected; the second length is greater than the first length.

2. The headphone assembly according to claim 1, characterized in that, The headphone assembly also includes a magnetic attraction device, which includes a first magnetic attraction structure and a second magnetic attraction structure. The first magnetic structure is disposed inside the earphone and is disposed on the side of the battery opposite to the first charging component; The second magnetic attraction structure is disposed in the receiving groove, and the second magnetic attraction structure is disposed on the side of the bracket opposite to the second charging component; The opposing sides of the first magnetic structure and the second magnetic structure have opposite magnetic properties, and when the earphone is placed in the receiving slot, the first magnetic structure and the second magnetic structure attract each other.

3. The headphone assembly according to claim 2, characterized in that, The first charging component includes a first charging spring; The second charging component includes an elastic element and a second charging spring. One end of the elastic element is connected to the second magnetic structure, and the other end of the elastic element is connected to the second charging spring. When the first charging spring and the second charging spring are in contact and connected, the elastic element is in a compressed state.

4. The headphone assembly according to claim 3, characterized in that, The first magnetic structure is fixedly connected to the earphone. When the earphone is placed in the receiving slot and the voltage of the battery changes from below the first threshold to above the first threshold, the elastic member switches from a compressed state to a natural state, and the earphone moves away from the earphone box along the elongation direction of the deformation member, so that the first charging component and the second charging component are separated.

5. The headphone assembly according to claim 4, characterized in that, When the elastic element is in its natural state, the length of the elastic element is a third length; when the elastic element is in its compressed state, the length of the elastic element is a fourth length. The difference between the second length and the first length is the first difference, and the difference between the third length and the fourth length is the second difference; Wherein, the first difference is greater than the second difference.

6. The headphone assembly according to claim 1, characterized in that, The diameter of the first charging component is D, and the diameter of the second charging component is d, where D > d.

7. The headphone assembly according to claim 2, characterized in that, Its features are, The magnetic attraction device is either a permanent magnet or an electromagnet.

8. The headphone assembly according to claim 4, characterized in that, The deformable component is made of piezoelectric material. When the voltage of the battery changes from below the first threshold to above the first threshold, the deformable component gradually elongates towards the support.

9. An earphone, characterized in that, The earphones can be housed in an earphone case. The earphones include a first earphone and a second earphone. The first earphone includes a first magnetic structure, a first battery, a first deformable element, and a first charging component. The second earphone includes a first magnetic structure, a second battery, a second deformable element, and a first charging component. The first deformable element is connected in series with the first battery, and its length changes with the voltage of the first battery. The first deformable element is made of piezoelectric material. The second deformable element is connected in series with the second battery, and its length changes with the voltage of the second battery. The second deformable element is also made of piezoelectric material. The first battery is connected to the first charging component, the first deformable element is connected in series with the first battery, and the first magnetic structure is disposed on the side of the first battery away from the first deformable element; the second battery is connected to the first charging component, the second deformable element is connected in series with the second battery, and the first magnetic structure is disposed on the side of the second battery away from the second deformable element. The first magnetic structure attracts the earphone case, the first deformable element and the second deformable element are both in contact with the earphone case, and the first charging component charges the earphones by connecting to the earphone case. Wherein, when the voltage of the first battery is lower than a first threshold, the first deformable element has a first length; when the voltage of the first battery is higher than the first threshold, the first deformable element has a second length; the second length is greater than the first length; When the voltage of the second battery is lower than the first threshold, the second deformable member has a first length; when the voltage of the second battery is higher than the first threshold, the second deformable member has a second length; the second length is greater than the first length.

10. An earphone case, characterized in that, The earphone case is used to house earphones including a battery and a deformable component connected in series with the battery. The earphone case includes a receiving slot, a support, and a second charging component, wherein the support and the second charging component are disposed in the receiving slot. When the earphone is in the receiving slot, the earphone and the second charging component are in contact and connected; when the earphone is in the receiving slot and the bracket abuts against the deformable member included in the earphone, the earphone and the second charging component are separated and disconnected; wherein, the deformable member is made of piezoelectric material, and when the battery voltage is lower than a first threshold, the deformable member has a first length; when the battery voltage is higher than the first threshold, the deformable member has a second length, and the deformable member abuts against the bracket; the second length is greater than the first length.

Citation Information

Patent Citations

  • Earphone charging device and Bluetooth earphone

    CN212936146U