Magnetic type wireless charging box for Bluetooth earphone

Abstract

The utility model relates to the technical field of earphone charging boxes, and discloses a magnetic type wireless charging box for a Bluetooth earphone, which comprises a charging box body, a charging box cover is rotatably arranged at the upper end of the charging box body, a clamping block is fixedly connected to the lower end of the charging box cover, a clamping groove is formed in the upper end of the charging box body, a stepped groove is formed in the clamping groove, and the stepped groove is fixedly connected with the charging box cover. A locking mechanism used for fixing the clamping block is arranged in the stepped groove. The locking mechanism comprises a sliding block, a right-angle plate and two sets of reset springs. Through cooperation of the charging box body, the charging box cover, the clamping block, the clamping groove and the locking mechanism, the charging box cover is inserted into the clamping groove through the clamping block, and a protrusion on a right-angle plate is rapidly embedded into a groove in the clamping block under the action of a reset spring, so that rapid locking of the charging box cover is achieved, the charging box cover which is magnetically attracted to be closed is prevented from being opened in the carrying process, and the charging efficiency is improved. Therefore, the earphone body is prevented from being lost, and the protection effect on the earphone body is improved.

Description

Technical Field

[0001] This utility model relates to the field of headphone charging case technology, specifically a magnetic wireless charging case for Bluetooth headphones. Background Technology

[0002] Wireless Bluetooth earphones are ubiquitous in people's lives due to their portability and ease of use. However, the way they are used limits their size and weight, preventing them from having a large built-in power supply. This has led to concerns about their battery life, requiring charging after a period of use. Since wireless Bluetooth earphones are usually small, they are easily lost or damaged after daily use. Therefore, some wireless Bluetooth earphones come with a dedicated charging case to extend battery life and provide protection and storage.

[0003] Current Bluetooth earphone charging cases typically use magnetic attraction to position the earphones, and the lids of these cases are also secured magnetically. While magnetic opening and closing of the charging case lid offers some convenience, accidental opening during transport can compromise the earphones' protection. Therefore, we propose a magnetic wireless charging case for Bluetooth earphones. Utility Model Content

[0004] The purpose of this utility model is to provide a magnetic wireless charging case for Bluetooth earphones. By setting a sliding locking structure, the opening and closing of the charging case lid is convenient, thereby facilitating the taking out and putting in the Bluetooth earphones. It can also prevent accidental opening of the charging case lid, thus improving the protection of the Bluetooth earphones. This allows the Bluetooth earphones to be stably magnetically charged when stored in the charging case, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a magnetic wireless charging case for Bluetooth earphones, comprising a charging case body, a charging case cover rotatably disposed at the upper end of the charging case body, a locking block fixedly connected to the lower end of the charging case cover, a slot being provided at the upper end of the charging case body, a stepped groove being provided in the slot, and a locking mechanism for fixing the locking block being provided in the stepped groove.

[0006] The locking mechanism includes a slider, a right-angle plate, and two sets of return springs. One end of the right-angle plate is fixedly connected to one side of the slider. Both sets of return springs are located on the side of the right-angle plate opposite to the slider and are located in the stepped groove. A T-shaped groove for mounting the slider is provided on one side of the charging box. The T-shaped groove is connected to the stepped groove. A protrusion is fixedly connected to the other side of the right-angle plate. A groove for the protrusion to be inserted is provided on one side of the locking block.

[0007] Preferably, the upper end of the charging case has two sets of earphone charging slots, and each set of earphone charging slots is provided with an earphone body. The lower end of the charging case cover has an earphone storage slot for storing the earphone body. The charging case is provided with a Hall sensor for sensing the earphone body.

[0008] Preferably, a power indicator light is provided on one side of the charging box, and a button is provided on the other side of the charging box.

[0009] Preferably, the inner cavity of the charging box is provided with a battery and a control circuit board, and the control circuit board is equipped with a wireless charging receiver module and charging contacts for charging the earphone body.

[0010] Preferably, the lower end of the charging box is provided with a charging interface and multiple sets of heat dissipation holes, and the side of the charging box adjacent to the power indicator light is provided with a hanging rope connection hole.

[0011] Preferably, the wireless charging receiver module includes a resistor R3 connected between pins 2 and 7 of the wireless charging chip U13; a diode D1 and a capacitor C2 are connected in parallel between pin 2 of the wireless charging chip U13 and the connection terminal of the resistor R3; an inductor L2 and a capacitor C1 are connected in parallel at one end of the diode D1; the connection terminal of the inductor L2 and the capacitor C1 is connected to the other end of the capacitor C2; a diode D2 and an inductor L1 are connected in parallel between pin 3 of the wireless charging chip U13; a resistor R1 and a resistor R2 are connected in parallel between pin 5 of the wireless charging chip; a capacitor C3 is connected to the other end of the resistor R2 and the other end of the resistor R1; and the other end of the inductor L1 is connected to the connection terminal of the resistor R1 and the capacitor C3.

[0012] Preferably, the Hall sensor includes a sensing chip U1, a resistor R6 is connected to the REF terminal of the sensing chip U1, a resistor R5 and a capacitor C5 are connected in parallel to one end of the resistor R6, the connection end of the capacitor C5 and the resistor R6 is connected to the Gain terminal of the sensing chip U1, and the output terminal of the sensing chip U1 is connected to the connection end of the capacitor C5 and the resistor R5 respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model mainly utilizes the cooperation between the charging case body, charging case cover, locking block, locking slot and locking mechanism. The charging case cover is inserted into the locking slot through the locking block, and under the action of the return spring, the protrusion on the right angle plate is quickly embedded into the groove on the locking block, thereby quickly locking the charging case cover and preventing the magnetically closed charging case cover from opening during carrying, thus preventing the earphone body from being lost and improving the protection effect of the earphone body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the charging case lid of this utility model when it is opened;

[0016] Figure 2 This is a schematic cross-sectional view of the charging box body of this utility model;

[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This is a circuit diagram of the wireless charging receiver module of this utility model;

[0019] Figure 5 This is a circuit diagram of the Hall sensor of this utility model.

[0020] In the diagram: 1. Charging case body; 2. Charging case lid; 3. Earphone charging slot; 4. Earphone storage slot; 5. Earphone body; 6. Slot; 61. Stepped slot; 62. T-shaped slot; 7. Locking block; 8. Locking mechanism; 81. Slider; 82. Right-angle plate; 83. Protrusion; 84. Return spring; 9. Battery indicator light; 10. Hanging lanyard connection hole; 11. Button; 12. Battery; 13. Control circuit board; 14. Wireless charging receiver module; 15. Charging contacts; 16. Charging interface; 17. Ventilation holes. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-3 This utility model provides a technical solution: a magnetic wireless charging case for Bluetooth earphones, including a charging case body 1, a charging case cover 2 rotatably disposed on the upper end of the charging case body 1, a locking block 7 fixedly connected to the lower end of the charging case cover 2, a slot 6 opened on the upper end of the charging case body 1, a stepped groove 61 opened in the slot 6, a locking mechanism 8 for fixing the locking block 7 is provided in the stepped groove 61, and a magnetic positioning mechanism (not shown in the figure) is provided in the charging case body 1 to facilitate limiting the closing of the charging case cover 2. The magnetic positioning mechanism is existing technology and will not be described in detail.

[0023] The locking mechanism 8 includes a slider 81, a right-angle plate 82, and two sets of return springs 84. One end of the right-angle plate 82 is fixedly connected to one side of the slider 81. Both sets of return springs 84 are located on the side of the right-angle plate 82 opposite to the slider 81, and both sets of return springs 84 are located in the stepped groove 61. A T-shaped groove 62 for mounting the slider 81 is provided on one side of the charging box 1. The T-shaped groove 62 is connected to the stepped groove 61. A protrusion 83 is fixedly connected to the other side of the right-angle plate 82. A groove for the protrusion 83 to be inserted is provided on one side of the locking block 7.

[0024] The upper end of the charging case 1 has two sets of earphone charging slots 3, and each set of earphone charging slots 3 is provided with an earphone body 5. The lower end of the charging case cover 2 has an earphone storage slot 4 for storing the earphone body 5. The charging case 1 is provided with a Hall sensor (not shown in the figure) that senses the presence of the earphone body 5. When the earphone body 5 is put into or taken out of the earphone charging slot 3 of the charging case 1, the Hall sensor detects the change in magnetic field and transmits the magnetic field signal to the control circuit board 13. The control circuit board 13 is used to realize operations such as turning the charging function on or off and displaying the status.

[0025] A power indicator light 9 is provided on one side of the charging box 1, and a button 11 is provided on the other side of the charging box 1. The power indicator light 9 can intuitively display the power status of the battery 12 inside the charging box 1.

[0026] The inner cavity of the charging case 1 is equipped with a battery 12 and a control circuit board 13. The control circuit board 13 is equipped with a wireless charging receiver module 14 and a charging contact 15 for charging the earphone body 5. One end of the charging contact 15 is located inside the earphone charging slot 3 for convenient charging of the earphone body 5.

[0027] The lower end of the charging box 1 is provided with a charging interface 16 and multiple sets of heat dissipation holes 17. A lanyard connection hole 10 is provided on the side of the charging box 1 adjacent to the power indicator light 9. The lanyard connection hole 10 makes it easy to attach a lanyard, thereby making it easier to carry the charging box 1 and improving its convenience.

[0028] The wireless charging receiver module 14 includes a resistor R3 connected between pins 2 and 7 of the wireless charging chip U13. A diode D1 and a capacitor C2 are connected in parallel between pin 2 of the wireless charging chip U13 and the connection point of the resistor R3. An inductor L2 and a capacitor C1 are connected in parallel at one end of the diode D1. The connection point of the inductor L2 and the capacitor C1 is connected to the other end of the capacitor C2. A diode D2 and an inductor L1 are connected in parallel between pin 3 of the wireless charging chip U13. A resistor R1 and a resistor R2 are connected in parallel between pin 5 of the wireless charging chip. A capacitor C3 is connected to the other end of the resistor R2 and the other end of the resistor R1. The other end of the inductor L1 is connected to the connection point of the resistor R1 and the capacitor C3. The wireless charging chip U13 is responsible for handling the power conversion and signal control during the wireless charging process, converting the received electromagnetic signal into usable power. The resistor R3 acts as a current limiter or voltage divider, stabilizing the voltage and current between the relevant pins of the chip and ensuring the normal operation of the chip.

[0029] The Hall sensor includes a sensing chip U1. A resistor R6 is connected to the REF terminal of the sensing chip U1. A resistor R5 and a capacitor C5 are connected in parallel to one end of the resistor R6. The connection between the capacitor C5 and the resistor R6 is connected to the Gain terminal of the sensing chip U1. The output terminal of the sensing chip U1 is connected to the connection between the capacitor C5 and the resistor R5. The resistors R5 and R6 serve as voltage dividers and current limiters, providing the sensing chip U1 with appropriate operating voltage and current to ensure stable chip operation. They may also participate in the conditioning of the sensed signal.

[0030] When in use, when the charging case lid 2 is closed, the locking block 7 is inserted into the slot 6. Under the elastic action of the return spring 84, the protrusion on the right-angle plate 82 is embedded in the groove on the locking block 7, thereby locking the charging case lid 2 after magnetic closing. When it is necessary to open the charging case lid 2, press the slider 81 to move it in the T-shaped groove, which will drive the right-angle plate 82 and the protrusion 83 to disengage from the groove of the locking block 7, thus making it easier to open the charging case lid 2 and convenient to take out and put in the earphone body 5.

[0031] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic wireless charging case for Bluetooth earphones, comprising a charging case body (1), characterized in that: The upper end of the charging box body (1) is rotatably provided with a charging box cover (2), and the lower end of the charging box cover (2) is fixedly connected with a card block (7). The upper end of the charging box body (1) is provided with a card slot (6), and a stepped groove (61) is provided in the card slot (6). A locking mechanism (8) for fixing the card block (7) is provided in the stepped groove (61). The locking mechanism (8) includes a slider (81), a right-angle plate (82), and two sets of return springs (84). One end of the right-angle plate (82) is fixedly connected to one side of the slider (81). The two sets of return springs (84) are both located on the side of the right-angle plate (82) opposite to the slider (81) and are located in the stepped groove (61). A T-shaped groove (62) for mounting the slider (81) is provided on one side of the charging box (1). The T-shaped groove (62) and the stepped groove (61) are connected in a continuous manner. A protrusion (83) is fixedly connected to the other side of the right-angle plate (82). A groove for embedding the protrusion (83) is provided on one side of the locking block (7).

2. The magnetic wireless charging case for Bluetooth earphones according to claim 1, characterized in that: The upper end of the charging box (1) is provided with two sets of headphone charging slots (3), and each set of headphone charging slots (3) is provided with a headphone body (5). The lower end of the charging box cover (2) is provided with a headphone storage slot (4) for storing the headphone body (5). The charging box (1) is provided with a Hall sensor for sensing the headphone body (5).

3. A magnetic wireless charging case for Bluetooth earphones according to claim 2, characterized in that: A power indicator light (9) is provided on one side of the charging box (1), and a button (11) is provided on the other side of the charging box (1).

4. A magnetic wireless charging case for Bluetooth earphones according to claim 3, characterized in that: The inner cavity of the charging box (1) is provided with a battery (12) and a control circuit board (13). The control circuit board (13) is equipped with a wireless charging receiver module (14) and charging contacts (15) for charging the earphone body (5).

5. A magnetic wireless charging case for Bluetooth earphones according to claim 4, characterized in that: The lower end of the charging box (1) is provided with a charging interface (16) and multiple sets of heat dissipation holes (17). The side of the charging box (1) adjacent to the power indicator light (9) is provided with a hanging rope connection hole (10).

6. A magnetic wireless charging case for Bluetooth earphones according to claim 5, characterized in that: The wireless charging receiver module (14) includes a resistor R3 connected between pins 2 and 7 of the wireless charging chip U13. A diode D1 and a capacitor C2 are connected in parallel between pin 2 of the wireless charging chip U13 and the connection end of the resistor R3. An inductor L2 and a capacitor C1 are connected in parallel at one end of the diode D1. The connection end of the inductor L2 and the capacitor C1 is connected to the other end of the capacitor C2. A diode D2 and an inductor L1 are connected in parallel between pin 3 of the wireless charging chip U13. A resistor R1 and a resistor R2 are connected in parallel between pin 5 of the wireless charging chip. A capacitor C3 is connected to the other end of the resistor R2 and the other end of the resistor R1. The other end of the inductor L1 is connected to the connection end of the resistor R1 and the capacitor C3.

7. A magnetic wireless charging case for Bluetooth earphones according to claim 6, characterized in that: The Hall sensor includes a sensing chip U1. A resistor R6 is connected to the REF terminal of the sensing chip U1. A resistor R5 and a capacitor C5 are connected in parallel to one end of the resistor R6. The connection end of the capacitor C5 and the resistor R6 is connected to the Gain terminal of the sensing chip U1. The output terminal of the sensing chip U1 is connected to the connection end of the capacitor C5 and the resistor R5 respectively.

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