Improved earphone charging bin structure

The improved earphone charging case features a detachable hemispherical lower shell and a swing-out cover design, which solves the problems of insufficient quick-release function and heat dissipation difficulties, providing a personalized shell replacement and a visually appealing experience that soothes the mind.

CN224083665UActive Publication Date: 2026-04-03廖文干
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing Bluetooth earphone charging cases suffer from insufficient quick-release functionality, poor heat dissipation, limited functionality, and a lack of aesthetic appeal.

Method used

Featuring a detachable hemispherical lower shell and a swingable cover design, combined with snap-fit ​​slots and magnetic attachments, and equipped with counterweights for quick shell replacement and aesthetic appeal, while also enhancing heat dissipation.

Benefits of technology

It features a quick-change shell function to meet personalized needs, improves heat dissipation performance, and has both aesthetic appeal and mood-relieving effects.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224083665U_ABST
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Abstract

The utility model discloses an improved earphone charging bin structure. The improved earphone charging bin structure comprises a bin body; a cover body; a lower shell is arranged on the periphery of the bin body, a plurality of first clamping protrusions are formed on the inner wall of the lower shell in a protruding mode, and a plurality of first clamping grooves are formed in the bin body. An upper shell is arranged on the periphery of the cover body, a plurality of second clamping protrusions are formed on the inner wall of the upper shell in a protruding mode, and a plurality of second clamping grooves are formed in the cover body. A balancing weight is arranged at the bottom of the bin body, so that the bin body can swing along the shape track of the lower shell and reset to keep vertical. According to the utility model, the bin body is quickly clamped with the first clamping bulge of the lower shell through the first clamping groove, and the cover body is quickly clamped with the second clamping bulge of the upper shell through the second clamping groove, so that the function of quickly replacing the shell by a user is realized, the shell with various tidal designs can be replaced, and the individual requirements of the user are met; a charging bin protective sleeve is omitted, the heat dissipation performance is not weakened, and the charging bin is suitable for being popularized and applied to various charging bins.
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Description

Technical fields:

[0001] This utility model relates to the field of wireless Bluetooth headset accessories technology, and specifically to an improved headset charging case structure. Background technology:

[0002] The charging case is an essential accessory for Bluetooth earbuds. Its built-in battery can recharge the earbuds multiple times, significantly extending their battery life. Typically, the charging case's battery capacity is much larger than the earbuds themselves, ensuring users don't need to constantly search for power sources when out and about. The charging case usually features multi-color indicator lights to display battery level, earbud status (such as pairing, factory reset, etc.), and charging status.

[0003] With the rise and development of Bluetooth earphones, Bluetooth earphone charging cases have also emerged. Simultaneously, protective cases have appeared to cover the outside of Bluetooth earphone charging cases, offering more aesthetic options and preventing scratches. These cases are mostly made of plastic or silicone, but they can cause heat dissipation problems.

[0004] Currently, some Bluetooth earphones on the market use a sliding cover opening mechanism. For example, Chinese utility model patent application CN209593700U discloses an earphone charging case, which includes: a first shell, a cover, and a sliding component. The first shell has an opening and a second shell is embedded within the first shell to accommodate the earphones. The cover is slidably connected to the second shell and closes the opening. The sliding component is attached between the cover and the charging case to slide the cover to open or close the opening. This design is efficient to assemble, simple to follow, and allows for easy one-handed operation with a smooth, satisfying opening and closing feel.

[0005] However, this existing structure still has the following shortcomings:

[0006] 1. In this technical solution, the second shell is fixedly embedded in the first shell, so that the second shell and the first shell do not have a quick-release function, making it difficult for users to replace the shell. Using a charging case protective cover will increase the difficulty of heat dissipation.

[0007] 2. The functions are relatively simple, and it cannot effectively relieve the user's tension, nor does it have any aesthetic value.

[0008] In view of the above, the inventors propose the following technical solution. Utility model content:

[0009] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an improved headphone charging case structure.

[0010] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: an improved headphone charging case structure, comprising: a case body, which has a receiving groove for storing headphones; a cover body, which is disposed on the case body in a swingable and openable manner; a hemispherical lower shell is detachably disposed around the case body, wherein several first snap-fit ​​protrusions are formed on the inner wall of the lower shell, and correspondingly, several first snap-fit ​​grooves are formed on the case body; an upper shell is detachably disposed around the cover body, wherein several second snap-fit ​​protrusions are formed on the inner wall of the upper shell, and correspondingly, several second snap-fit ​​grooves are formed on the cover body; a counterweight is disposed at the bottom of the case body, so that the case body can swing along the shape trajectory of the lower shell and return to stand upright.

[0011] Furthermore, in the above technical solution, a charging opening is formed at the bottom of the lower shell, and a support surface is formed at the charging opening of the lower shell to facilitate keeping the chamber upright.

[0012] Furthermore, in the above technical solution, the housing includes a receiving body for snapping into the lower shell, two first magnetic suction members disposed below the receiving body for magnetically positioning the earphone, an indicator light assembly disposed on the receiving body for displaying the working status, a battery mounted on the receiving body for charging the earphone, a PCB board connected to the rechargeable battery, a counterweight disposed below the PCB board, and a charging interface disposed on the PCB board and able to extend outward through the charging opening, wherein the receiving groove is formed on the receiving body.

[0013] Furthermore, in the above technical solution, the lower end of the receiving slot is provided with a pin for connecting to the PCB board, and the PCB board is provided with a guide hole for the pin to be inserted.

[0014] Furthermore, in the above technical solution, the cover is recessed and formed with a relief groove for accommodating the earphone; the receiving body is provided with a second magnetic member, and the cover is formed with a magnetic groove, in which a third magnetic member is provided for magnetic attraction with the second magnetic member to prevent the cover from being accidentally opened.

[0015] Furthermore, in the above technical solution, the cover has a protruding connecting part for connecting with the compartment body, and the connecting part has a first through hole and a second through hole opened laterally along the upper edge; the receiving body has a recessed connecting groove, wherein a first rotating shaft passing through the first through hole is arranged laterally in the connecting groove, and two torsion springs for increasing the damping effect are also arranged in the connecting groove, one end of the torsion spring is inserted into the receiving body, and the other end of the torsion spring is inserted into the second through hole.

[0016] Furthermore, in the above technical solution, the first snap-fit ​​groove is L-shaped or inverted L-shaped. When the first snap-fit ​​protrusion slides into the first snap-fit ​​groove and the lower shell is rotated to make the first snap-fit ​​protrusion snap into the first snap-fit ​​groove, the lower shell is fixedly installed on the compartment body.

[0017] Furthermore, in the above technical solution, the second snap-fit ​​groove is L-shaped or inverted L-shaped. When the second snap-fit ​​protrusion slides into the second snap-fit ​​groove and the upper shell is rotated to make the second snap-fit ​​protrusion snap into the second snap-fit ​​groove, the upper shell is fixedly installed on the cover.

[0018] Furthermore, in the above technical solution, a first reinforcing rib for increasing strength is protruding and formed on the inner wall of the lower shell; a second reinforcing rib for increasing strength is also protruding and formed on the inner wall of the upper shell.

[0019] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: In this utility model, the compartment body achieves quick engagement with the first engagement protrusion of the lower shell through the first engagement groove, and the cover body achieves quick engagement with the second engagement protrusion of the upper shell through the second engagement groove. This effectively realizes the function of users quickly changing the outer shell, allowing for the replacement of various trendy design shells to meet users' personalized needs. It eliminates the need for a charging compartment protective cover, does not weaken heat dissipation performance, and is suitable for widespread application in various charging compartments. In addition, compared with the existing structure, in this utility model, by setting a counterweight inside the compartment body, the compartment body can swing along the shape trajectory of the lower shell and return to its upright position (a roly-poly effect), which users can play with, effectively relieving user tension and enhancing the viewing experience. Attached image description:

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

[0021] Figure 2 This is an exploded view of the present invention in its unfolded state;

[0022] Figure 3 This is an exploded structural diagram of the present invention;

[0023] Figure 4 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 5 This is a schematic diagram of the unfolded state of Embodiment 2 of this utility model. Detailed implementation method:

[0025] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0026] See Figures 1 to 5As shown, an improved headphone charging case structure is presented. In Embodiment 1 of this utility model, it includes: a case body 1, which has a receiving groove 11 for receiving the headphone 10; a cover 2, which is provided on the case body 1 in a swingable and openable manner; a hemispherical lower shell 3 is detachably provided around the case body 1, wherein several first snap-fit ​​protrusions 31 are formed on the inner wall of the lower shell 3, and correspondingly, several first snap-fit ​​grooves 13 are provided on the case body 1; an upper shell 4 is detachably provided around the cover 2, wherein several second snap-fit ​​protrusions 41 are formed on the inner wall of the upper shell 4, and correspondingly, several second snap-fit ​​grooves 14 are provided on the cover 2; a counterweight 106 is provided at the bottom of the case body 1, so that the case body 1 can swing along the shape trajectory of the lower shell 3 and return to stand upright.

[0027] In this invention, the housing 1 is quickly engaged with the lower shell 3 via a first engaging slot 13 and a first engaging protrusion 31, and the cover 2 is quickly engaged with the upper shell 4 via a second engaging slot 14 and a second engaging protrusion 41. This effectively enables users to quickly change the outer shell, allowing for various trendy designs to meet individual user needs. It eliminates the need for a charging case protective cover, does not compromise heat dissipation, and is suitable for widespread application in various charging cases. Furthermore, compared to existing structures, this invention incorporates a counterweight 106 within the housing 1, allowing it to swing along the shape and trajectory of the lower shell 3 and return to an upright position (a self-righting effect), providing a playful experience that effectively relieves user tension and enhances visual appeal.

[0028] The housing 1 includes a receiving body 101 for engaging with the lower shell 3, two first magnetic components 102 disposed below the receiving body 101 for magnetically positioning the earphones, an indicator light assembly 103 disposed on the receiving body 101 for displaying the working status, a battery 104 mounted on the receiving body 101 for charging the earphones 10, a PCB board 105 connected to the rechargeable battery 104, a counterweight 106 disposed below the PCB board 105, and a charging interface 107 disposed on the PCB board 105 and extending outward through the charging opening 32. The receiving slot 11 is formed on the receiving body 101. Here, the receiving slot 11 is located on the upper surface of the receiving body 101 and can store the earphones 10. After storage, the two first magnetic components 102 will automatically magnetically attract the earphones 10, confining the earphones 10 within the receiving slot 11 to prevent the earphones 10 from accidentally falling out.

[0029] The lower shell 3 has a charging opening 32 at its bottom, and a support surface 33 is formed at the charging opening 32 to facilitate keeping the compartment 1 upright. Here, the charging opening 32 at the bottom of the lower shell 3 is used for the charging interface 107 of the compartment 1 to extend outward. In addition, in order to facilitate the user to plug in when charging the charging compartment, and to ensure the stability of the compartment 1 after swinging along the shape trajectory of the lower shell 3, a support surface 33 is formed at the charging opening 32.

[0030] The lower end of the receiving slot 11 is provided with a pin 111 for connecting to the PCB board 105. The PCB board 105 is provided with a guide hole 1051 for the pin 111 to be inserted. Here, the power supply battery 104 is connected to the PCB board 105, and the PCB board 105 converts the voltage into a voltage suitable for charging the earphone 10, and then transfers the power to the earphone 10 for charging through the guide hole 1051 and the pin 111.

[0031] The cover 2 has a recessed clearance groove 201 for accommodating the earphone 10. A second magnetic member 1012 is provided inside the receiving body 101, and a magnetic groove 202 is formed on the cover 2. A third magnetic member 203 is provided within the magnetic groove 202 to magnetically attract the second magnetic member 1012 and prevent accidental opening of the cover 2. Here, to prevent accidental opening of the cover 2 after it is closed, a second magnetic member 1012 is provided inside the receiving body 101, and a third magnetic member 203 is provided at a corresponding position on the cover 2. After the cover 2 is closed, the second magnetic member 1012 and the third magnetic member 203 attract each other to prevent accidental opening.

[0032] The cover 2 has a protruding connecting portion 21 for connecting with the compartment 1. The connecting portion 21 has a first through hole 211 and a second through hole 212 formed laterally along its length. The receiving body 101 has a recessed connecting groove 1013. A first rotating shaft 1014, passing through the first through hole 211, is laterally disposed within the connecting groove 1013. Two torsion springs 1015 are also disposed within the connecting groove 1013 to increase damping effect. One end of each torsion spring 1015 is inserted into the receiving body 101, and the other end is inserted into the second through hole 212. Here, the cover 2 swings around the first rotating shaft 1014 as its rotational axis. The torsion springs 1015, through their own elasticity, increase the damping feel when opening and closing the cover 2, and also allow the cover 2 to remain open or closed.

[0033] The inner wall of the lower shell 3 is also formed with a first reinforcing rib 301 to increase strength; the inner wall of the upper shell 4 is also formed with a second reinforcing rib 401 to increase strength.

[0034] In this embodiment, the lower shell 3 and the upper shell 4 form a spherical shape after being closed, and the patterns on the outer surfaces of the lower shell 3 and the upper shell 4 are the same as those on a golf ball, which can bring users both aesthetic appeal and playability.

[0035] The first locking groove 13 is L-shaped or inverted L-shaped. When the first locking protrusion 31 slides into the first locking groove 13 and the lower shell 3 is rotated to engage the first locking protrusion 31 into the first locking groove 13, the lower shell 3 is fixedly installed on the compartment 1. The second locking groove 14 is L-shaped or inverted L-shaped. When the second locking protrusion 41 slides into the second locking groove 14 and the upper shell 4 is rotated to engage the second locking protrusion 41 into the second locking groove 14, the upper shell 4 is fixedly installed on the cover 2. It is understood that the above-described rotating buckle structure is only one embodiment of this utility model. In actual applications, the rotating buckle structure can be replaced with a bolt quick-release structure, a plug-in structure, or other quick-release structures.

[0036] Combination Figure 5 As shown, in Embodiment 2 of this utility model, the lower shell 3 and the upper shell 4 form a spherical shape after being closed, and there are no other patterns on the surface. It can be understood that the patterns on the outer surfaces of the lower shell 3 and the upper shell 4 can be replaced with soccer ball patterns, basketball patterns, etc. Compared with Embodiment 1, except for the difference between the outer surfaces of the lower shell 3 and the upper shell 4, the structures in all other places are the same, and will not be described in detail here.

[0037] In summary, in this invention, the housing 1 achieves quick engagement with the first engagement protrusion 31 of the lower shell 3 via the first engagement slot 13, and the cover 2 achieves quick engagement with the second engagement protrusion 41 of the upper shell 4 via the second engagement slot 14. This effectively enables users to quickly change the outer shell, allowing for the replacement of various trendy designs to meet individual user needs. It eliminates the need for a charging case protective cover, does not weaken heat dissipation performance, and is suitable for widespread application in various charging cases. Furthermore, compared to existing structures, this invention, by setting a counterweight 106 inside the housing 1, allows the housing 1 to swing along the shape trajectory of the lower shell 3 and return to its upright position (a self-righting effect), which users can play with, effectively relieving user tension and enhancing aesthetic appeal.

[0038] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. An improved earphone charging compartment structure, comprising: a compartment body (1) provided with a receiving groove (11) for receiving an earphone (10); a cover body (2) swingably arranged on the compartment body (1); characterized in that the compartment body (1) is peripherally provided with a detachable lower shell (3) in the shape of a hemisphere, wherein a plurality of first clamping protrusions (31) are protruded and formed on the inner wall of the lower shell (3), and corresponding first clamping grooves (13) are formed on the compartment body (1); the cover body (2) is peripherally provided with an upper shell (4), wherein a plurality of second clamping protrusions (41) are protruded and formed on the inner wall of the upper shell (4), and corresponding second clamping grooves (14) are formed on the cover body (2); the bottom of the compartment body (1) is provided with a counterweight (106) so that the compartment body (1) can swing along the trajectory of the lower shell (3) and reset to stand upright.

2. The improved earphone charging compartment structure according to claim 1, characterized in that: the bottom of the lower shell (3) is provided with a charging opening (32), and the lower shell (3) is formed with a support surface (33) at the charging opening (32) to facilitate the upright standing of the compartment body (1).

3. The improved earphone charging case structure according to claim 1, wherein: the compartment body (1) comprises a receiving body (101) for clamping with the lower shell (3), two first magnetic attraction members (102) arranged below the receiving body (101) for magnetically attracting and positioning the earphone, an indicator light assembly (103) arranged on the receiving body (101) for displaying the working state, a battery (104) mounted on the receiving body (101) for charging the earphone (10), a PCB board (105) connected to the charging battery (104), a counterweight (106) arranged below the PCB board (105), and a charging interface (107) arranged on the PCB board (105) and capable of extending outward through the charging opening (32), wherein the receiving groove (11) is formed on the receiving body (101).

4. The improved earphone charging case structure according to claim 3, characterized in that: the lower end of the receiving groove (11) is provided with a pin (111) for connecting with the PCB board (105), and the PCB board (105) is provided with a guide hole (1051) for the pin (111) to plug into.

5. The improved earphone charging case structure according to claim 4, wherein: the cover body (2) is recessed to form an avoidance groove (201) for receiving the earphone (10); the receiving body (101) is provided with a second magnetic attraction member (1012), and the cover body (2) is formed with a magnet groove (202) provided with a third magnetic attraction member (203) for magnetically attracting the second magnetic attraction member (1012) to avoid accidental opening of the cover body (2).

6. The improved earphone charging case structure according to claim 3, characterized in that: The cover (2) is protruded and formed with a connecting part (21) for connecting with the cartridge body (1), the connecting part (21) is provided with a first through hole (211) and a second through hole (212) in the transverse direction; the accommodating body (101) is recessed and formed with a connecting groove (1013), wherein the first through hole (211) is provided with a first rotating shaft (1014) in the transverse direction, and the connecting groove (1013) is further provided with two torsion springs (1015) for increasing the damping effect, one end of the torsion spring (1015) is inserted into the accommodating body (101), and the other end of the torsion spring (1015) is inserted into the second through hole (212).

7. The improved earphone charging case structure according to claim 6, wherein: The first clamping groove (13) is in L shape or reverse L shape, when the first clamping protrusion (31) slides into the first clamping groove (13) and rotates the lower shell (3) to make the first clamping protrusion (31) clamped into the first clamping groove (13), the lower shell (3) is fixedly installed on the cartridge body (1).

8. The improved earphone charging case structure according to claim 6, wherein: The second clamping groove (14) is in L shape or reverse L shape, when the second clamping protrusion (41) slides into the second clamping groove (14) and rotates the upper shell (4) to make the second clamping protrusion (41) clamped into the second clamping groove (14), the upper shell (4) is fixedly installed on the cover (2).

9. The improved earphone charging case structure according to any one of claims 7-8, characterized in that: The lower shell (3) is further protruded and formed with a first reinforcing rib (301) on the inner wall for increasing the strength; the upper shell (4) is further protruded and formed with a second reinforcing rib (401) on the inner wall for increasing the strength.

Citation Information

Patent Citations

  • Earphone charging bin

    CN209593700U