Earphone box with earphones stacked up and down for charging

By using a stacking design and magnetic fixing method, the problems of traditional headphone cases being easy to loosen and bulky are solved, achieving miniaturization and portability of the headphone case and improving the user experience.

CN224305892UActive Publication Date: 2026-05-29SHENZHEN GUANGYI INTERNATIONAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN GUANGYI INTERNATIONAL TECHNOLOGY CO LTD
Filing Date
2025-05-09
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional headphone cases are bulky and inconvenient to carry because their mechanical fixing method is prone to loosening, inconvenient to operate, and takes up space.

Method used

The design features a stacking mechanism, with the first and second magnetic clasps securing the upper and lower earphones respectively. This magnetic attraction ensures stable storage, simplifies operation, and saves space.

Benefits of technology

It achieves stable storage of the earphones, is easy to operate, shortens the length of the earphone case, and is easy to carry, making it especially suitable for sports and travel scenarios.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224305892U_ABST
    Figure CN224305892U_ABST
Patent Text Reader

Abstract

The utility model relates to a earphone box of upper and lower earphone stacking charging belongs to wireless earphone technical field, including upper containing cavity and lower containing cavity, the first earphone storage slot is opened in the upper containing cavity, be provided with first magnetic attraction body in the first earphone storage slot, the lower containing cavity is hinged below the upper containing cavity through the pivot, the second earphone storage slot is opened in the lower containing cavity, the first earphone storage slot and the second earphone storage slot are set up or are set up mirror image up and down, be provided with second magnetic attraction body in the second earphone storage slot, the first earphone storage slot and the second earphone storage slot all are provided with earphone, two earphones are stacked in the earphone box of charging up and down, adopt first magnetic attraction body and second magnetic attraction body and fix the earphone up and down respectively, ensure earphone steady storage, user only needs to be close to earphone can automatic adsorption fixed, operation is more convenient, compared with traditional mechanical fixed mode, magnetic attraction fixed mode saves the overall space of earphone box, is favorable to the miniaturization design of earphone box, has facilitated the user to carry earphone.
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Description

Technical Field

[0001] This utility model relates to the field of wireless earphone technology, specifically to an earphone case for charging by stacking earphones vertically. Background Technology

[0002] Wireless Bluetooth headphones are headphones that connect wirelessly to devices via Bluetooth technology, avoiding the constraints of traditional headphones' cables and providing greater freedom of use. They have a built-in battery and require periodic charging. They support pairing and connection with smartphones, tablets, computers, and other devices. The advantages of wireless Bluetooth headphones include convenient wearing, good sound quality, support for voice calls and voice assistants, and other functions. They are suitable for use in sports, travel, and other occasions. The headphone case is a device specifically designed to store, protect, and charge wireless headphones. It is not just a storage box but also performs several important functions.

[0003] In the current technology, traditional headphone cases mostly use buckles or elastic clamping structures to fix the headphones. These mechanical fixing methods have some problems. First, after long-term use, the structure is prone to loosening, resulting in the headphones not being securely fixed. In addition, users need to accurately align the headphones when putting them in, which is not convenient. The mechanical parts take up space, which is not conducive to the miniaturization design of the headphone case.

[0004] Therefore, a charging case for stacked earphones is proposed to solve the technical problem of the large size of the earphone case and its inconvenience in carrying it. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an earphone case that allows for stacking and charging of earphones, which has the advantages of being small in size and easy to carry, thus solving the problem of earphone cases being too bulky and inconvenient to carry.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an earphone case for charging by stacking earphones, comprising an upper receiving cavity and a lower receiving cavity, wherein a first earphone storage slot is provided on the upper receiving cavity, and a first magnetic attractor is provided in the first earphone storage slot;

[0007] The lower receiving cavity is hinged to the lower receiving cavity via a pivot. A second earphone storage slot is provided on the lower receiving cavity. The first earphone storage slot and the second earphone storage slot are aligned vertically or mirror images of each other. A second magnetic body is provided in the second earphone storage slot. Earphones are provided in both the first and second earphone storage slots, and the two earphones are stacked vertically. The first and second magnetic bodies are used to magnetically fix the corresponding earphones.

[0008] Furthermore, both the first magnetic accumulator and the second magnetic accumulator are located on the inner wall of the corresponding first and second earphone storage slots or embedded on their upper surfaces.

[0009] Furthermore, the upper receiving cavity includes an upper outer shell and an upper inner shell, the upper outer shell is fixedly sleeved on the outside of the upper inner shell, the first earphone storage slot is formed on the upper inner shell, the lower receiving cavity includes a lower outer shell and a lower inner shell, the lower outer shell is fixedly sleeved on the outside of the lower inner shell, the second earphone storage slot is located on the lower inner shell, and the upper and lower earphones are distributed in the upper receiving cavity and the lower receiving cavity respectively.

[0010] Furthermore, a first PCB board is disposed inside the upper cavity, and the first magnetic accumulator is embedded above the first PCB board and located on the upper inner shell.

[0011] Furthermore, a second PCB board is provided inside the lower receiving cavity, and the second magnetic accumulator is embedded on one side of the second PCB board and located on the lower inner shell.

[0012] Furthermore, it also includes a battery disposed inside the upper and / or lower receiving cavities, the battery being electrically connected to the second PCB board, and the first PCB board being electrically connected to the second PCB board via a flexible power cable.

[0013] Furthermore, the first magnetic accelerator and the second magnetic accelerator are any one of neodymium iron boron permanent magnets, samarium cobalt permanent magnets, and flexible rubber magnets.

[0014] Furthermore, a display screen is provided on the second PCB board, and the display screen is fixedly connected to the second PCB board. A light-transmitting cover is provided above the display screen, and the display screen is used to display the power information and charging status information of the headphones and the battery.

[0015] Furthermore, both the first PCB board and the second PCB board are provided with positive and negative electrode posts that abut against the earphones. The positive and negative electrode posts penetrate the corresponding earphone shells and extend into the first earphone storage slot and the second earphone storage slot. The positive and negative electrode posts are electrically connected to the first PCB board and the second PCB board for charging the earphones.

[0016] Furthermore, a third magnetic chuck is provided on the upper outer shell, and a fourth magnetic chuck is provided on the lower outer shell corresponding to the third magnetic chuck. The third magnetic chuck and the fourth magnetic chuck are attracted by opposite poles, which is used to lock the upper and lower accommodating cavities when they are closed, preventing the upper accommodating cavity from opening arbitrarily.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] 1. The earphone case, which allows the earphones to be stacked and charged, uses a first magnetic clasp and a second magnetic clasp to secure the upper and lower earphones respectively. The strong magnetic attraction ensures that the earphones are stably stored, preventing them from shaking or falling off, and achieving precise alignment. Users only need to bring the earphones close to each other for them to automatically attach and be secured. The operation is more convenient. Compared with the traditional mechanical fixing method, the magnetic fixing method saves the overall space of the earphone case, which is conducive to the miniaturization of the earphone case and makes it easier for users to carry the earphones.

[0019] 2. The earphone charging case features stackable charging by folding the two earphones vertically instead of horizontally, effectively shortening the overall length of the case and making it more compact and portable. This design is especially suitable for sports and travel, as it can be easily placed in a pocket or small bag, enhancing the user experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the upper and lower receiving cavities in this utility model;

[0022] Figure 3 This is a schematic diagram of the disassembled structure of the upper and lower outer shells in this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the second magnetic accumulator and the second PCB board in this utility model;

[0024] Figure 5 This is a cross-sectional view of the structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of the lower receiving cavity in this utility model.

[0026] In the diagram: 1. Upper cavity; 2. Lower cavity; 3. First earphone storage slot; 4. First magnet; 5. Second earphone storage slot; 6. Second magnet; 7. Earphone; 8. Upper outer shell; 9. Upper inner shell; 10. Lower outer shell; 11. Lower inner shell; 301. First PCB board; 501. Second PCB board; 701. Battery; 100. Display screen. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] Please see Figure 1-5 In this embodiment, an earphone case for charging by stacking earphones includes an upper receiving cavity 1 and a lower receiving cavity 2. The upper receiving cavity 1 is provided with a first earphone storage slot 3, and a first magnetic 4 is provided in the first earphone storage slot 3.

[0030] The lower receiving cavity 2 is hinged to the lower receiving cavity 1 via a pivot. A second earphone storage slot 5 is provided on the lower receiving cavity 2. The first earphone storage slot 3 and the second earphone storage slot 5 are aligned vertically or mirror images of each other. A second magnetic body 6 is provided in the second earphone storage slot 5. Earphones 7 are provided in both the first earphone storage slot 3 and the second earphone storage slot 5, and the two earphones 7 are stacked vertically. The first magnetic body 4 and the second magnetic body 6 are used to magnetically fix the corresponding earphones 7.

[0031] Furthermore, the first magnetic 4 and the second magnetic 6 are both located on the inner wall of the corresponding first earphone storage slot 3 and the second earphone storage slot 5 or embedded on their upper surface.

[0032] It should be noted that magnets or iron plates are provided on both the upper and lower earphones 7 at the locations corresponding to the first magnetic body 4 and the second magnetic body 6, so as to fix the upper and lower earphones 7 in place.

[0033] It should be added that the first magnetic accelerator 4 and the second magnetic accelerator 6 are any one of neodymium iron boron permanent magnets, samarium cobalt permanent magnets, and flexible rubber magnets.

[0034] It should be noted that neodymium iron boron permanent magnets provide extremely strong magnetic attraction, and their small size allows for a stable magnetic fixation effect, making them particularly suitable for compact headphone case designs that require high magnetic strength.

[0035] Samarium cobalt permanent magnets have excellent high-temperature stability and corrosion resistance. Their magnetic properties are less affected by temperature, making them suitable for use in harsh environments. They also have long-lasting and stable magnetic force and a long service life. Flexible rubber magnets have good flexibility and processability, and can be made into various shapes to adapt to different headphone structures. At the same time, the magnetic force is evenly distributed, avoiding local stress concentration and having a buffering effect, which can reduce mechanical collisions between the headphones and the charging case.

[0036] In application, the first magnetic body 4 and the second magnetic body 6 fix the upper and lower earphones 7 respectively. The strong magnetic attraction ensures that the earphones 7 are stably stored, preventing them from shaking or falling off, and achieving precise alignment. Users only need to bring the earphones 7 close to automatically attract and fix them, making the operation more convenient. Compared with the traditional mechanical fixing method, the magnetic fixing method saves the overall space of the earphone case, which is conducive to the miniaturization of the earphone case and makes it easier for users to carry the earphone case.

[0037] Example 2:

[0038] Please see Figure 3-5 In this embodiment, the upper receiving cavity 1 includes an upper outer shell 8 and an upper inner shell 9. The upper outer shell 8 is fixedly sleeved on the outside of the upper inner shell 9. The first earphone storage slot 3 is opened on the upper inner shell 9. The lower receiving cavity 2 includes a lower outer shell 10 and a lower inner shell 11. The lower outer shell 10 is fixedly sleeved on the outside of the lower inner shell 11. The second earphone storage slot 5 is located on the lower inner shell 11. The upper and lower earphones 7 are distributed one-to-one in the upper receiving cavity 1 and the lower receiving cavity 2.

[0039] Furthermore, a first PCB board 301 is provided inside the upper cavity 1, and a first magnetic chuck 4 is embedded above the first PCB board 301 and located on the upper inner shell 9.

[0040] Furthermore, a second PCB board 501 is provided inside the lower receiving cavity 2, and a second magnetic 6 is embedded in the second PCB board 501 on the side near the lower earphone 7 and located on the lower inner shell 11.

[0041] A display screen 100 is provided on the second PCB board 501. The display screen 100 is fixedly connected to the second PCB board 501. A light-transmitting cover is provided above the display screen 100. The display screen 100 is used to display the power information and charging status information of the earphone 7 and the battery 701.

[0042] The upper outer shell 8 is provided with a third magnetic clasp, and the lower outer shell 10 is provided with a fourth magnetic clasp corresponding to the third magnetic clasp. The third magnetic clasp and the fourth magnetic clasp are attracted by opposite poles, which is used to lock the upper receiving cavity 1 and the lower receiving cavity 2 when they are closed, preventing the upper receiving cavity 1 from being opened at will.

[0043] By highly integrating the first magnetic 4 and the second magnetic 6 with the first PCB board 301 and the second PCB board 501 respectively, the miniaturization and high reliability of the charging module are achieved, making it particularly suitable for earphone case designs with stringent space requirements.

[0044] In application, a multi-layered design of upper outer shell 8, upper inner shell 9, lower outer shell 10, and lower inner shell 11 is adopted to enhance the overall strength and effectively protect the internal circuit and earphone 7. The upper receiving cavity 1 and the lower receiving cavity 2 are hinged by a pivot, allowing for smooth opening and closing. At the same time, a third magnetic body and a fourth magnetic body are provided to achieve magnetic closure and prevent the earphone case from being opened accidentally. By stacking the two earphones 7 vertically instead of arranging them horizontally in the traditional way, the overall length of the earphone case is effectively shortened, making it more compact and easy for users to carry. This design is especially suitable for sports, travel and other scenarios, and can be easily put into a pocket or small bag, improving the user experience.

[0045] Example 3:

[0046] Please see Figure 3-6This embodiment also includes a battery 701 disposed inside the upper cavity 1 and / or the lower cavity 2. The battery 701 is electrically connected to the second PCB board 501, and the first PCB board 301 is electrically connected to the second PCB board 501 through a flexible power cable.

[0047] Both the first PCB board 301 and the second PCB board 501 are provided with positive and negative electrode posts that abut against the earphone 7. The positive and negative electrode posts penetrate the shell of the corresponding earphone 7 and extend into the first earphone storage slot 3 and the second earphone storage slot 5. The positive and negative electrode posts are electrically connected to the first PCB board 301 and the second PCB board 501 for charging the earphone 7.

[0048] When the earphone case needs to be charged, the external power supply is connected, and the battery 701 begins to charge. The display screen 100 displays the battery level of the battery 701 at this time. When the earphones 7 need to be charged, the upper and lower earphones 7 are placed into the first earphone storage slot 3 and the second earphone storage slot 5 in sequence. The positive and negative electrode posts on the earphones 7 are connected to the first PCB board 301 and the second PCB board 501 respectively. The battery 701 charges the upper and lower earphones 7 through a flexible power cable.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 said element.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An earphone case for stacking and charging earphones, characterized in that: It includes an upper receiving cavity and a lower receiving cavity. The upper receiving cavity has a first earphone storage slot, and a first magnetic attractor is provided in the first earphone storage slot. The lower receiving cavity is hinged to the lower receiving cavity via a pivot. A second earphone storage slot is provided on the lower receiving cavity. The first earphone storage slot and the second earphone storage slot are aligned vertically or mirror images of each other. A second magnetic body is provided in the second earphone storage slot. Earphones are provided in both the first and second earphone storage slots, and the two earphones are stacked vertically. The first and second magnetic bodies are used to magnetically fix the corresponding earphones.

2. The earphone case for stacking and charging earphones according to claim 1, characterized in that: The first magnetic accumulator and the second magnetic accumulator are both located on the inner wall of the corresponding first and second earphone storage slots or embedded on their upper surfaces.

3. The earphone case for stacking and charging earphones according to claim 1, characterized in that: The upper receiving cavity includes an upper outer shell and an upper inner shell. The upper outer shell is fixedly sleeved on the outside of the upper inner shell. The first earphone storage slot is opened on the upper inner shell. The lower receiving cavity includes a lower outer shell and a lower inner shell. The lower outer shell is fixedly sleeved on the outside of the lower inner shell. The second earphone storage slot is located on the lower inner shell. The upper and lower earphones are distributed in the upper and lower receiving cavities respectively.

4. The earphone case for stacking and charging earphones according to claim 1, characterized in that: The upper cavity is provided with a first PCB board, and the first magnetic accumulator is embedded above the first PCB board and located on the upper inner shell.

5. The earphone case for stacking and charging earphones according to claim 4, characterized in that: The lower cavity contains a second PCB board, and the second magnetic accumulator is embedded on one side of the second PCB board and located on the lower inner shell.

6. The earphone case for stacking and charging earphones according to claim 5, characterized in that: It also includes a battery disposed inside the upper and / or lower accommodating cavity, the battery being electrically connected to the second PCB board, and the first PCB board being electrically connected to the second PCB board via a flexible power cable.

7. The earphone case for stacking and charging earphones according to claim 1, characterized in that: The first magnetic attractor and the second magnetic attractor are any one of neodymium iron boron permanent magnets, samarium cobalt permanent magnets, and flexible rubber magnets.

8. The earphone case for stacking and charging earphones according to claim 5, characterized in that: The second PCB board is equipped with a display screen, which is fixedly connected to the second PCB board. A light-transmitting cover is provided above the display screen. The display screen is used to display the power information and charging status information of the headphones and the battery.

9. The earphone case for stacking and charging earphones according to claim 6, characterized in that: Both the first PCB board and the second PCB board are provided with positive and negative electrode posts that abut against the earphones. The positive and negative electrode posts penetrate the corresponding housings and extend into the first earphone storage slot and the second earphone storage slot, respectively.

10. The earphone case for stacking and charging earphones according to claim 3, characterized in that: The upper outer shell is provided with a third magnetic clasp, and the lower outer shell is provided with a fourth magnetic clasp corresponding to the third magnetic clasp. The third magnetic clasp and the fourth magnetic clasp are attracted by opposite poles, which is used to lock the upper and lower accommodating cavities when they are closed, preventing the upper accommodating cavity from being opened at will.