Magnetic self-locking type earphone charging bin hinge structure

Through the magnetic self-locking hinge structure combined with the gear rack transmission and magnet repulsion design, the damage and gap problems of the headphone charging chamber hinge structure is solved, automatic locking and aesthetic improvement are achieved, and service life is extended.

CN223194811UActive Publication Date: 2025-08-05CHENGDU TOMI ELECTRONIC EQUIP MFG CO LTD
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Patent Information

Application Number
CN202422176647.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-05
Publication Date
2025-08-05
Estimated Expiration
2034-09-05

AI Technical Summary

Technical Problem

The hinge structure of the existing headphone charging chamber is prone to damage when opened and closed, and the need for additional snap or torsion spring structures leads to large gaps, poor aesthetics, and inconvenient operation.

Method used

The magnetic self-locking hinge structure is adopted, combined with the gear rack transmission and magnet repulsion design, to realize automatic locking of the compartment cover, eliminating additional snaps or torsion springs, and adjusting the opening and closing force by adjusting the distance between the magnets.

Benefits of technology

It realizes automatic closing and self-locking of the headphone charging chamber, reducing mechanical wear, improving operational convenience and aesthetic appearance, and extending service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a magnetic self-locking type earphone charging cabin hinge structure, which relates to the technical field of earphone charging cabin accessories and comprises a rear hinge structure used for connecting a cabin cover and a rear side part of a main cabin, and a front hinge structure used for connecting the cabin cover and a front side part of the main cabin, the front hinge structure comprises a bin cover magnet and a main bin magnet, wherein the bin cover magnet is used for being installed on the bin cover, the main bin magnet is used for being installed on the main bin and matched with the bin cover magnet, and the upward magnetic pole of the main bin magnet is adjustable. When the earphone charging bin cover is used for the earphone charging bin, automatic locking can be achieved when the bin cover is closed, the closing mechanism is simple, the operation convenience is improved, and compared with a traditional buckle or torsion spring structure, the magnetic attraction structure reduces mechanical abrasion and prolongs the service life of the charging bin.
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Description

Technical Field

[0001] The utility model relates to the technical field of earphone charging compartment accessories, and in particular to a magnetic self-locking earphone charging compartment hinge structure. Background Art

[0002] With the development of mobile phones and headphones, people's requirements for headphones are getting higher and higher. Bluetooth headset charging cases are even more popular, so people also have higher requirements for the use and appearance of charging cases.

[0003] Most headphone charging cases on the market today use hinges to connect the lids, primarily hinges with torsion springs and hinges with magnets. Hinge-and-torsion springs require a snap-on design to fully close. The snap-on design results in a large gap when the lid is closed, affecting the aesthetics. The snaps can also wear out during use, increasing the gap and even causing failure. This design can also cause the lid to open suddenly, which can damage the mechanism due to buffering. Utility Model Content

[0004] The utility model provides a magnetic self-locking earphone charging compartment hinge structure, which can solve the above problems.

[0005] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0006] The utility model provides a magnetic self-locking earphone charging compartment hinge structure, including a rear hinge structure for connecting the compartment cover and the rear edge of the main compartment, and a front hinge structure for connecting the compartment cover and the front edge of the main compartment. The front hinge structure includes a compartment cover magnet for installation on the compartment cover and a main compartment magnet for installation on the main compartment and matching the compartment cover magnet. The upward magnetic pole of the main compartment magnet is adjustable.

[0007] As a further description of the above technical solution, the front hinge structure also includes a slider, a gear, a spring and a support seat for installation on the main warehouse; the support seat is provided with a linear slide rail along the front and rear directions, and the slider slides in conjunction with the linear slide rail; the slider is provided with a rack arranged along the front and rear directions, and the gear shaft of the gear is assembled on the support seat, and the gear is engaged with the rack; the main warehouse magnet is fixedly installed on the gear shaft; the spring is provided on the linear slide rail as a reset spring of the slider.

[0008] As a further description of the above technical solution, the main warehouse magnet is installed on the gear shaft through the main warehouse magnet sleeve; the main warehouse magnet sleeve is a hollow structure and is fixedly connected to the gear shaft, and the main warehouse magnet is placed in the main warehouse magnet sleeve.

[0009] As a further description of the above technical solution, the support seat is provided with a protrusion, and the front and rear ends of the spring are respectively in contact with the slider and the protrusion.

[0010] As a further description of the above technical solution, the slider is configured to fit over a T-shaped pressing portion of the button cover.

[0011] As a further description of the above technical solution, the main compartment magnet and the compartment cover magnet are both rectangular structures arranged along the left and right directions.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1) The hinge is equipped with a magnet. This structure has a uniform force and a good feel. When the cover is fully opened or closed, it can automatically maintain the current open or closed state due to the action of the spring. The hinge adopts a gear rack transmission and magnet attraction and repulsion structure design. The closing of the cover can achieve automatic closing and self-locking function within a certain range.

[0014] 2) Through the magnetic self-locking hinge structure, the earphone charging case can automatically lock when closed, without the need for additional buckles or torsion springs, simplifying the closing mechanism and improving the convenience of operation; since additional components such as buckles are eliminated, the gap of the charging case is smaller after closing, and the appearance is neater and more beautiful; compared with traditional buckle or torsion spring structures, the magnetic structure reduces mechanical wear and extends the service life of the charging case.

[0015] 3) When installing the application, the distance between the magnets can be adjusted, making it easier to adjust the operating force of opening and closing the earphone compartment.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following embodiments of the present invention are given in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 is an exploded view of the front hinge structure of the embodiment;

[0019] Figure 2 is an assembly diagram of the front hinge structure described in the embodiment;

[0020] Figure 3 、 Figure 4 and Figure 5 is an application diagram of the hinge structure of the earphone charging compartment described in the embodiment;

[0021] In the figure: 1. Support seat; 2. Linear slide rail; 3. Gear; 4. Gear shaft; 5. Slider; 6. Rack; 7. Pressing part; 8. Spring; 9. Main compartment magnet; 10. Compartment cover magnet; 11. Main compartment magnet sleeve; 12. Button sleeve; 13. Rear hinge structure; 14. Compartment cover; 15. Main compartment; 16. Front hinge structure; 17. Main compartment base plate; 18. Compartment cover base plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0023] Please refer to Figures 1 to 5 This embodiment provides a magnetic self-locking earphone charging case hinge structure, including a rear hinge structure 13 for connecting the case cover 14 and the rear edge of the main case 15, and a front hinge structure 16 for connecting the case cover 14 and the front edge of the main case 15.

[0024] In this embodiment, the front hinge structure 16 includes a slider 5, a gear 3, a spring 8, a support base 1, a compartment cover magnet 10 and a main compartment magnet 9. The main compartment magnet 9 and the compartment cover magnet 10 are both rectangular structures arranged in the left and right directions.

[0025] The support seat 1 is provided with a linear slide rail 2 along the front-to-back direction, and the slider 5 is slidably fitted on the linear slide rail 2; the slider 5 is provided with a rack 6 arranged along the front-to-back direction, the gear shaft 4 of the gear 3 is assembled on the support seat 1, and the gear 3 is engaged with the rack 6; the main bin magnet 9 is fixedly installed on the gear shaft 4; the spring 8 is provided on the linear slide rail 2, serving as a reset spring 8 of the slider 5.

[0026] The main bin magnet 9 is installed on the gear shaft 4 through the main bin magnet sleeve 11; the main bin magnet sleeve 11 is a hollow structure and is fixedly connected to the gear shaft 4, and the main bin magnet 9 is placed in the main bin magnet sleeve 11.

[0027] A protrusion is provided at the rear edge of the support seat 1 , and the front and rear ends of the spring 8 abut against the rear edge of the slider 5 and the protrusion at the rear edge of the support seat 1 respectively.

[0028] When the magnetic self-locking earphone charging compartment hinge structure of this embodiment is used, the rear hinge structure 13 is used to connect the compartment cover 14 and the rear edge of the main compartment 15, and the front hinge structure 16 is used to connect the compartment cover 14 and the front edge of the main compartment 15. Figure 4 and Figure 5 shown.

[0029] In this embodiment, the main compartment 15 is provided with a main compartment base plate 17, and the compartment cover 14 is provided with a compartment cover base plate 18 to facilitate the installation of the front hinge structure 16. It should be noted that in actual use, the main compartment base plate 17 and the compartment cover base plate 18 need to have holes that match the earphones to be installed, which is not shown in the drawings of this embodiment.

[0030] The installation method of the front hinge structure 16 and the application principle of the hinge structure are as follows:

[0031] The slider 5 is provided with a T-shaped pressing portion 7, which passes from the inside of the main compartment 15 to the front side of the main compartment 15 and is fitted with a button cover 12 to form a button that can drive the slider 5 to move backward from the outside;

[0032] The main compartment base plate 17 is provided with three bayonet pins, and the support base 1 is provided with three pin holes, and the bayonet pins and the pin holes correspond to each other in an interference fit;

[0033] The bin cover magnet 10 is fixed to the bin cover base plate 18, and the bin cover magnet 10 is parallel to the main bin magnet 9;

[0034] When the compartment cover 14 needs to be opened, the button can be pressed, and then the slider 5 is driven to overcome the resistance of the spring 8 and move backward, the rack 6 drives the gear 3 to rotate forward, and then the gear shaft 4 drives the main compartment magnet sleeve 11 to rotate forward, and then the upward magnetic pole of the main compartment magnet 9 is adjusted to a magnetic pole that can generate a repulsive force with the compartment cover magnet 10, and then the compartment cover 14 automatically flips back, and the state after opening is as follows: Figure 5 As shown;

[0035] After releasing the button, under the action of the spring 8, the slider 5 is reset, the rack 6 drives the gear 3 to rotate in the opposite direction, and then the gear shaft 4 drives the main compartment magnet sleeve 11 to rotate in the opposite direction, and then the upward magnetic pole of the main compartment magnet 9 is adjusted to a magnetic pole that can generate attraction with the compartment cover magnet 10. At this time, the compartment cover 14 can be buckled down, and under the action of the magnetic attraction force, the compartment cover 14 remains closed.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A magnetic self-locking earphone charging compartment hinge structure, comprising a rear hinge structure (13) for connecting a compartment cover (14) and a rear edge of a main compartment (15), characterized in that: The invention also includes a front hinge structure (16) for connecting the bin cover (14) and the front edge of the main bin (15), wherein the front hinge structure (16) includes a bin cover magnet (10) for being mounted on the bin cover (14) and a main bin magnet (9) for being mounted on the main bin (15) and matching the bin cover magnet (10), wherein the upward magnetic pole of the main bin magnet (9) is adjustable.

2. The magnetic self-locking earphone charging compartment hinge structure according to claim 1, characterized in that: The front hinge structure (16) also includes a slider (5), a gear (3), a spring (8) and a support base (1) for being installed on the main bin (15); the support base (1) is provided with a linear slide rail (2) along the front-back direction, and the slider (5) is slidably fitted on the linear slide rail (2); the slider (5) is provided with a rack (6) arranged along the front-back direction, the gear shaft (4) of the gear (3) is transferred and assembled on the support base (1), and the gear (3) is engaged with the rack (6); the main bin magnet (9) is fixedly installed on the gear shaft (4); the spring (8) is provided on the linear slide rail (2) and serves as a reset spring (8) of the slider (5).

3. The magnetic self-locking earphone charging compartment hinge structure according to claim 2, characterized in that: The main bin magnet (9) is mounted on the gear shaft (4) via a main bin magnet sleeve (11); the main bin magnet sleeve (11) is a hollow structure and is fixedly connected to the gear shaft (4), and the main bin magnet (9) is placed in the main bin magnet sleeve (11).

4. The magnetic self-locking earphone charging compartment hinge structure according to claim 2, characterized in that: The support seat (1) is provided with a raised portion, and the front and rear ends of the spring (8) respectively abut against the slider (5) and the raised portion.

5. The magnetic self-locking earphone charging compartment hinge structure according to claim 2, characterized in that: The slider (5) is provided with a T-shaped pressing portion (7) for fitting the button cover (12).

6. The magnetic self-locking earphone charging compartment hinge structure according to claim 2, characterized in that: The main bin magnet (9) and the bin cover magnet (10) are both rectangular parallelepiped structures arranged in the left-right direction.