Magnetic closing structure of bluetooth earphone charging bin

Abstract

This utility model relates to a magnetic closure structure for Bluetooth earphone charging cases, comprising a lower cover and an upper cover. The upper cover is hinged to the upper surface of the lower cover. A second fixing groove is formed at the outer edge of the lower surface of the upper cover, and an iron strip is installed inside the second fixing groove. A first fixing groove is formed at the outer edge of the upper surface of the lower cover, and a magnet is installed inside the first fixing groove. Limiting grooves are formed on both the left and right sides of the lower surface of the upper cover, and inclined limiting strips are formed on both the left and right sides of the upper surface of the lower cover. This utility model, by embedding an iron strip at the lower edge of the upper cover and a magnet at the upper edge of the lower cover, allows the charging case to be magnetically fixed after closure, facilitating the use of the Bluetooth earphone charging case. The cooperative structure of the inclined limiting strips and limiting grooves forms a physical guide when closing. The inclined angle design ensures that the upper cover closes smoothly along a predetermined trajectory, effectively preventing structural damage caused by closure deviation.

Description

Technical Field

[0001] This utility model relates to the field of Bluetooth earphone charging cases, specifically to a magnetic closure structure for Bluetooth earphone charging cases. Background Technology

[0002] As an essential accessory for portable audio devices, the reliability of the Bluetooth earphone charging case's closure structure directly impacts the user experience and product durability. With the increasing prevalence of wireless audio devices, consumers are demanding higher standards for the charging case's ease of use, structural stability, and lifespan, prompting the industry to continuously explore optimized closure design solutions.

[0003] Traditional Bluetooth earphone charging cases generally use a snap-lock closure structure, requiring users to manually press or slide the snaps to open and close them. This design presents several operational challenges: precise alignment of the snaps is required when closing, otherwise incomplete closure or jamming may occur; after prolonged use, the snap components are prone to wear due to frequent friction, leading to a decrease in closing force or the risk of accidental loosening. Furthermore, the snap structure lacks a closing guide mechanism, which may cause misalignment during opening and closing, affecting the tightness of the closure or even causing impact damage to the casing. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned defects and provide a magnetic closing structure for a Bluetooth headset charging case. This magnetic closing structure solves the technical problem that the existing technology requires a large force when closing the charging case.

[0005] The objective of this utility model is achieved through the following means:

[0006] The Bluetooth earphone charging case has a magnetic closure structure, including a lower cover and an upper cover. The upper cover is hinged to the upper end face of the lower cover. A second fixing groove is provided at the outer edge of the lower end face of the upper cover, and an iron strip is installed inside the second fixing groove. A first fixing groove is provided at the outer edge of the upper end face of the lower cover, and a magnet is installed inside the first fixing groove. Limiting grooves are provided on both the left and right sides of the lower end face of the upper cover, and inclined limiting strips are provided on both the left and right sides of the upper end face of the lower cover.

[0007] Furthermore, the limiting groove is integrally formed with the upper cover, and the inclined limiting strip is integrally formed with the lower cover. The combination of the inclined limiting strip and the limiting groove makes it easy for the upper cover to align with the lower cover when closed.

[0008] Furthermore, the magnet has first through holes on both sides of its interior, and the first through holes are arranged in a straight line along the length of the magnet.

[0009] Furthermore, the iron bar has second through holes on both sides inside, and the second through holes are arranged in a straight line along the length of the iron bar.

[0010] Furthermore, a first fixing screw is installed inside the first through hole, and a second fixing screw is installed inside the second through hole. The first fixing screw is connected to the lower cover by a threaded engagement, and the second fixing screw is connected to the upper cover by a threaded engagement. The arrangement of the first fixing screw and the second fixing screw makes it easy to disassemble and replace the magnet and the iron strip.

[0011] Furthermore, an anti-slip block is provided on the outer front side of the top cover, and the anti-slip block is adhered and fixed to the top cover. The anti-slip block increases the friction when the finger touches the top cover to open it.

[0012] The beneficial effects of this utility model are:

[0013] The Bluetooth earphone charging case features a magnetic closure structure. This structure uses a magnet on the lower cover and an iron strip on the upper cover to achieve automatic closure through magnetic attraction. Users only need to bring the upper cover close to the lower cover to complete the closure action through magnetic guidance. The operation is convenient and the closure process does not require precise alignment. The magnetic design ensures the stability of the closure while avoiding the problems of easy wear and jamming of traditional buckle structures, which significantly extends the product's service life.

[0014] The combination of the inclined limiting strip and the limiting groove forms a physical guide when closed. The inclined angle design allows the top cover to close smoothly along the predetermined trajectory, effectively preventing structural damage caused by closing deviation. At the same time, the limiting groove provides precise constraint on the closed position, avoiding accidental opening due to vibration or external force. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of the magnetic closure structure of the Bluetooth earphone charging case of this utility model;

[0016] Figure 2 A perspective view of the magnetically closed structure of the Bluetooth earphone charging case of this utility model, showing the magnet and iron bar in a separated state;

[0017] Figure 3 A perspective view of the inclined limiting strip structure of the magnetic closing structure of the Bluetooth earphone charging case of this utility model;

[0018] In the diagram, 1 is the lower cover; 2 is the upper cover; 3 is the first fixing groove; 4 is the magnet; 5 is the first through hole; 6 is the first fixing screw; 7 is the second fixing groove; 8 is the iron strip; 9 is the second through hole; 10 is the second fixing screw; 11 is the limiting groove; 12 is the inclined limiting strip; and 13 is the anti-slip block. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. This embodiment refers to... Figures 1-3The specific implementation of the magnetic closing structure of the Bluetooth earphone charging case includes a lower cover 1 and an upper cover 2. The upper cover 2 is hinged to the upper end face of the lower cover 1. A second fixing groove 7 is provided at the outer edge of the lower end face of the upper cover 2. An iron strip 8 is installed inside the second fixing groove 7. A first fixing groove 3 is provided at the outer edge of the upper end face of the lower cover 1. A magnet 4 is installed inside the first fixing groove 3. Limiting grooves 11 are provided on both the left and right sides of the lower end face of the upper cover 2. Inclined limiting strips 12 are provided on both the left and right sides of the upper end face of the lower cover 1.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the limiting groove 11 is integrally formed with the upper cover 2, and the inclined limiting strip 12 is integrally formed with the lower cover 1. The combination of the inclined limiting strip 12 and the limiting groove 11 makes it easy for the upper cover 2 to be aligned with the lower cover 1 when closed.

[0021] like Figure 1 and Figure 2 As shown, the magnet 4 has first through holes 5 on both sides inside, and the first through holes 5 are arranged in a straight line along the length of the magnet 4.

[0022] like Figure 1 and Figure 2 As shown, the iron bar 8 has second through holes 9 on both sides inside, and the second through holes 9 are arranged in a straight line along the length of the iron bar 8.

[0023] like Figure 1 and Figure 2 As shown, a first fixing screw 6 is installed inside the first through hole 5, and a second fixing screw 10 is installed inside the second through hole 9. The first fixing screw 6 is connected to the lower cover 1 by a threaded engagement, and the second fixing screw 10 is connected to the upper cover 2 by a threaded engagement. The arrangement of the first fixing screw 6 and the second fixing screw 10 makes it easy to disassemble and replace the magnet 4 and the iron strip 8.

[0024] like Figure 1 and Figure 2 As shown, an anti-slip block 13 is provided on the outer front side of the upper cover 2, and the anti-slip block 13 is adhered and fixed to the upper cover 2. The anti-slip block 13 increases the friction when the finger touches the upper cover 2 and lifts it.

[0025] The magnetic closing structure of the Bluetooth earphone charging case in this embodiment is used as follows: Flip the top cover 2 upwards. The force of the flipping is greater than the magnetic force of the magnet 4 on the iron strip 8, so that the top cover 2 flips open. When closing, press the top cover 2 to close. When the top cover 2 is close to the bottom cover 1, the top of the inclined limiting strip 12 is inserted into the limiting groove 11 and merged. The inclined limiting strip 12 realizes the alignment assistance of the top cover 2 and the bottom cover 1. When the top cover 2 and the bottom cover 1 are closed, the magnet 4 attracts the iron strip 8 by magnetic force, so that the top cover 2 is magnetically attracted and fixed to the upper end of the bottom cover 1. When the magnet 4 needs to be replaced, use a tool to unscrew the first fixing screw 6, and the replacement magnet 4 is reset. Then, the first fixing screw 6 is screwed back through the first through hole 5. When the iron strip 8 needs to be replaced, use a tool to unscrew the second fixing screw 10, and the replacement iron strip 8 is reset. Then, the second fixing screw 10 is screwed back through the second through hole 9.

[0026] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A magnetically closure structure for a Bluetooth earphone charging case, comprising a lower cover and an upper cover, wherein the upper cover is hinged to the upper end face of the lower cover, characterized in that, The upper cover has a second fixing groove at the outer edge of its lower end face, and an iron strip is installed inside the second fixing groove. The lower cover has a first fixing groove at the outer edge of its upper end face, and a magnet is installed inside the first fixing groove. Limiting grooves are provided on both the left and right sides of the lower end face of the upper cover. Inclined limiting strips are provided on both the left and right sides of the upper end face of the lower cover. First through holes are provided on both sides of the inside of the magnet, and the first through holes are arranged in a straight line along the length of the magnet. Second through holes are provided on both sides of the inside of the iron strip, and the second through holes are arranged in a straight line along the length of the iron strip.

2. The magnetic closure structure of the Bluetooth earphone charging case according to claim 1, characterized in that: The limiting groove is integrally formed with the upper cover, and the inclined limiting strip is integrally formed with the lower cover.

3. The magnetic closure structure of the Bluetooth earphone charging case according to claim 1, characterized in that: A first fixing screw is installed inside the first through hole, and a second fixing screw is installed inside the second through hole. The first fixing screw is connected to the lower cover by a threaded engagement, and the second fixing screw is connected to the upper cover by a threaded engagement.

4. The magnetic closure structure of the Bluetooth earphone charging case according to claim 1, characterized in that: An anti-slip block is provided on the outer front side of the top cover, and the anti-slip block is adhered and fixed to the top cover.

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