Earphone charging bin and earphone suite

Abstract

The utility model relates to the technical field of earphone charging bins, in particular to an earphone charging bin and an earphone suite. The earphone charging bin comprises a bottom shell, a flip cover, a main control circuit board, a first flexible circuit board and an earphone storage seat; the flip cover is rotationally connected with the bottom shell, so that the flip cover can be closed and opened on the bottom shell; the main control circuit board, the earphone storage seat and the first flexible circuit board are arranged in the bottom shell, and the main control circuit board is located at the bottom of the earphone storage seat. The earphone storage seat is provided with two earphone storage grooves, and the first flexible circuit board is provided with two groups of charging terminals. The first flexible circuit board is electrically connected with the main control circuit board and then led out, the first flexible circuit board is arranged on the inner side of the earphone containing seat in a transverse extending mode, one set of charging terminals extend into the earphone containing groove from the side face of one earphone containing groove, and the other set of charging terminals extend into the earphone containing groove from the side face of the other earphone containing groove.

Description

Technical Field

[0001] The utility model relates to the technical field of earphone charging bins, in particular to an earphone charging bin and an earphone kit. Background Art

[0002] A charging caddy is a device used to store and charge headphones. It is an important accessory for Bluetooth headphones and provides users with a convenient charging and storage solution, making the use of Bluetooth headphones more convenient and efficient. The charging caddy has a compact and lightweight design, making it easy to carry and allow users to charge and store their headphones anytime, anywhere.

[0003] The charging terminals in the earphone storage cavity of current earphone charging pods are generally located at the bottom. However, the design of placing the charging terminals at the bottom is not suitable for all earphone charging pod structural designs. Therefore, it is urgent to provide an alternative charging terminal placement solution. Utility Model Content

[0004] An embodiment of the present invention provides an earphone charging case and an earphone kit to solve the problem in the prior art that the design scheme of setting the power terminal at the bottom is not applicable to all earphone charging case structural designs, and provides another charging terminal setting scheme.

[0005] The utility model discloses an earphone charging compartment, which is characterized by comprising a bottom shell, a flip cover, a main control circuit board, a first flexible circuit board and an earphone receiving seat; the flip cover is rotatably connected to the bottom shell so that the flip cover can be closed and opened on the bottom shell; the main control circuit board, the earphone receiving seat and the first flexible circuit board are arranged in the bottom shell, and the main control circuit board is located at the bottom of the earphone receiving seat;

[0006] There are two earphone storage slots on the earphone storage seat, and two sets of charging terminals are set on the first flexible circuit board.

[0007] The first flexible circuit board is electrically connected to the main control circuit board and then led out, and is laterally extended on the inner side of the headphone receiving seat. One set of charging terminals extends into the headphone receiving slot from the side of one headphone receiving slot, and the other set of charging terminals extends into the headphone receiving slot from the side of the other headphone receiving slot.

[0008] Optionally, the headphone charging compartment includes a battery seat, which is arranged in the bottom shell and located on the inner side of the headphone receiving seat; the part of the first flexible circuit board that extends laterally on the inner side of the headphone receiving seat is a lateral extension section, and the lateral extension section is located between the battery seat and the headphone receiving seat.

[0009] Optionally, the battery seat has a wire clamping post and two wire clamping pieces on one side facing the headphone storage seat; both sides of the wire clamping post on the battery seat are hollowed out to form a hollow area, and the two wire clamping pieces are respectively located on both sides of the wire clamping post; the horizontal extension section is clamped on the side of the wire clamping post close to the headphone storage seat and the side of the two wire clamping pieces away from the headphone storage seat.

[0010] Optionally, the first flexible circuit board includes two power supply circuit boards, and the transverse extension sections are electrically connected to the two power supply circuit boards respectively;

[0011] Two power supply circuit boards are installed on one side of the battery seat close to the earphone storage seat, and two groups of charging terminals are respectively arranged on the two power supply circuit boards.

[0012] Optionally, a clamping portion is provided on one side of the battery seat close to the earphone storage seat, and the clamping portion includes a first clamping arm and a second clamping arm; the power supply circuit board is clamped between the first clamping arm and the second clamping arm and between the clamping piece and the side wall of the hollow area.

[0013] Optionally, the first card arm is connected to the side of the battery seat close to the headphone storage seat, and the second card arm is arranged opposite to the first card arm; the height of the first card arm is greater than that of the second card arm; the top of the second card arm and the card piece are provided with an inclined surface close to the side of the power supply circuit board.

[0014] Optionally, the first flexible circuit board includes an inductive connection section, which is electrically connected to a power supply circuit board thereof. A magnetic sensor is provided on the inductive connection section. A second magnetic attraction component is installed on the inner side of the headphone storage seat. The second magnetic attraction component is located next to the magnetic sensor. A third magnetic attraction component is provided on the flip cover and is magnetically attracted to the second magnetic attraction component.

[0015] Optionally, two vertically extending and oppositely arranged positioning ribs are provided on the inner side of the headphone receiving seat, and the second magnetic attraction part is installed between the two positioning ribs; a mounting groove is provided on the two positioning ribs; an induction circuit board is provided on the induction connecting section, and the magnetic sensor is installed on the induction circuit board, and the induction circuit board is mounted in the mounting grooves on the two positioning ribs; two bayonet holes are provided on one side of the induction circuit board, and the bayonet holes are respectively clamped on the two positioning ribs; a limiting part is provided on the side of the battery seat facing the headphone receiving seat, and the limiting part is embedded between the two positioning ribs, and a closing part is provided on the end of the limiting part corresponding to the side of the induction circuit board away from the bayonet hole, and the closing part extends toward the headphone receiving seat, and the limiting part forms a limit on the side of the induction circuit board away from the bayonet hole; and / or

[0016] The first flexible circuit board includes a main control connection section and a bent buffer section. The sensing connection section is electrically connected to one of its power supply circuit boards through the bent buffer section. The main control connection section is electrically connected to the main control circuit board and is electrically connected to another power supply circuit board through the bent buffer section.

[0017] Optionally, each group of charging terminals includes two charging terminals, and a first magnetic component is installed at positions corresponding to the two headphone storage slots on the inner side of the headphone storage seat, and the first magnetic component is located between the corresponding two charging terminals; the extension line of the connection line between the two charging terminals of one group of charging terminals intersects with the extension line of the connection line between the two charging terminals of the other group of charging terminals and forms an angle.

[0018] The utility model also discloses an earphone kit, comprising a Bluetooth earphone and an earphone charging compartment, wherein the Bluetooth earphone can be stored in the earphone storage seat and charged.

[0019] Compared with the prior art, the beneficial effects of the earphone charging case and earphone kit provided by the embodiment of the present invention are as follows: the earphone charging case of the present invention is provided with a first flexible circuit board, two charging terminals are provided on the first flexible circuit board, and the first flexible circuit board is electrically connected from the main control circuit board and then extended laterally on the inner side of the earphone receiving seat. In this way, the two groups of charging terminals provided on the first flexible circuit board can have one group of charging terminals extending into the earphone receiving slot from the side of one earphone receiving slot, and the other group of charging terminals extending into the earphone receiving slot from the side of the other earphone receiving slot, thereby realizing the scheme of setting the charging terminals from the side of the earphone receiving slot, making full use of the space on the side of the earphone receiving seat, solving the problem of the earphone charging case structure having a small space at the bottom of the earphone receiving seat and being difficult to set the main control circuit board, and making the overall internal structure of the earphone charging case compact and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0021] Figure 1 This is a schematic diagram of an earphone charging compartment according to an embodiment of the present invention;

[0022] Figure 2 This is an exploded schematic diagram of the earphone charging compartment of an embodiment of the present utility model;

[0023] Figure 3 This is a further exploded schematic diagram of the earphone charging compartment of an embodiment of the present utility model;

[0024] Figure 4 This is an exploded schematic diagram of the earphone storage seat and battery holder of the embodiment of the present utility model;

[0025] Figure 5 Schematic diagram of a battery holder according to an embodiment of the present invention;

[0026] Figure 6 This is another schematic diagram of a battery holder according to an embodiment of the present utility model;

[0027] Figure 7 is a schematic diagram of a first flexible circuit board according to an embodiment of the present utility model;

[0028] Figure 8 This is a schematic diagram of a battery holder and an earphone storage holder according to an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the inner side of the earphone storage seat according to an embodiment of the present utility model;

[0030] Figure 10 This is another schematic diagram of the inner side of the earphone storage seat according to an embodiment of the present invention;

[0031] Figure 11 It is a schematic diagram of the first flexible circuit board and the first magnetic attraction component in an embodiment of the present utility model.

[0032] The reference numerals in the figures are:

[0033] 1. Bottom shell; 2. Flip cover; 3. Main control circuit board; 4. First flexible circuit board; 41. Charging terminal; 42. Lateral extension section; 43. Power supply circuit board; 44. Inductive connection section; 45. Magnetic sensor; 46. Inductive circuit board; 461. Bayonet; 47. Main control connection section; 48. Bending buffer section; 5. Headphone storage seat; 51. Headphone storage slot; 511. Opening; 52. Positioning rib; 521. Mounting slot; 6. Battery seat; 61. Wire clamping column; 62. Wire clamping piece; 63. Mounting part; 631. First clamping arm; 632. Second clamping arm; 64. Inclined surface; 65. Installation cavity; 66. Hollow area; 67. Limiting part; 671. Closing part; 7. First magnetic attraction component; 8. Second magnetic attraction component; 10. Battery. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. Now, in conjunction with the accompanying drawings, a detailed description of the preferred embodiments of the present utility model will be given.

[0035] The present invention provides an earphone charging case. Figures 1 to 4 As shown, the headphone charging case includes a base case 1, a flip cover 2, a main control circuit board 3, a first flexible circuit board 4, and a headphone receiving seat 5. The flip cover 2 is rotatably connected to the base case 1, allowing the flip cover 2 to be closed and opened on the base case 1. The main control circuit board 3, the headphone receiving seat 5, and the first flexible circuit board 4 are disposed within the base case 1, with the main circuit board 3 located at the bottom of the headphone receiving seat 5. The headphone receiving seat 5 has two headphone receiving slots 51, and the first flexible circuit board 4 is provided with two sets of charging terminals 41.

[0036] The first flexible circuit board 4 is electrically connected to the main control circuit board 3 and then led out, and is laterally extended inside the headphone receiving seat 5. One set of charging terminals 41 extends into the headphone receiving slot 51 from the side of one headphone receiving slot 51, and the other set of charging terminals 41 extends into the headphone receiving slot 51 from the side of the other headphone receiving slot 51.

[0037] The earphone charging compartment of the present invention is provided with a first flexible circuit board 4, two charging terminals 41 are provided on the first flexible circuit board 4, and the first flexible circuit board 4 is electrically connected to the main control circuit board 3 and then extended laterally on the inner side of the earphone receiving seat 5. In this way, the two groups of charging terminals 41 provided on the first flexible circuit board 4 can be configured such that one group of charging terminals 41 extends into the earphone receiving slot 51 from the side of one earphone receiving slot 51, and the other group of charging terminals 41 extends into the earphone receiving slot 51 from the side of the other earphone receiving slot 51, thereby realizing the scheme of providing the charging terminals 41 from the side of the earphone receiving slot 51, making full use of the space on the side of the earphone receiving seat 5, solving the problem of the earphone charging compartment structure having a small space at the bottom of the earphone receiving seat 5 and being difficult to provide the main control circuit board 3, and making the overall internal structure of the earphone charging compartment compact and reasonable.

[0038] Specifically, the first flexible circuit board 4 is a flexible printed circuit (FPC). The main control circuit board 33 controls the charging and discharging of the headphone charging compartment, and will not be described in detail here. Because the first flexible circuit board 4 is a regular thin sheet and easily deformable, it can ensure a regular wiring layout between the charging terminal 41 and the main control circuit board 3, while also facilitating wiring layout.

[0039] Specifically, as shown in Figure 4, the earphone charging compartment includes a battery holder 6, which is arranged in the bottom shell 1 and located inside the earphone receiving seat 5. The first flexible circuit board 4 extends laterally inside the earphone receiving seat 5 to form a lateral extension section 42, which is located between the battery holder 6 and the earphone receiving seat 5. By arranging the battery holder 6 in the bottom shell 1 and inside the earphone receiving seat 5, the space of the earphone charging compartment is fully utilized, making the structure of the entire earphone charging compartment more compact and capable of achieving more functions within a limited space. The lateral extension section 42 is located between the battery holder 6 and the earphone receiving seat 5. The gap between the two is used to arrange the lateral extension section 42, making full use of the space. The battery holder 6 and the earphone receiving seat 5 can also limit the lateral extension section 42, thereby improving the routing stability of the lateral extension section 42.

[0040] More specifically, if Figure 3As shown, the battery holder 6 has a mounting cavity 65 on the side facing away from the headphone receiving seat 5. A battery 10 is installed in the mounting cavity 65. The battery 10 is electrically connected to the main control circuit board 3, providing power to the entire headphone charging compartment, enabling normal operation of the battery holder 6 and the headphone receiving seat 5, as well as charging the Bluetooth headset. Studs can be provided on the bottoms of the battery holder 6 and the headphone receiving seat 5, and the main control circuit board 3 can be mounted to the bottoms of the battery holder 6 and the headphone receiving seat 5 using screws.

[0041] like Figure 5 As shown, the battery holder 6 has a wire clamping post 61 and two wire clamping pieces 62 on one side facing the headphone receiving seat 5; the two sides of the wire clamping post 61 on the battery holder 6 are hollowed out to form a hollow area 66, and the two wire clamping pieces 62 are respectively located on both sides of the wire clamping post 61; the transverse extension section 42 is clamped on the side of the wire clamping post 61 close to the headphone receiving seat 5 and on the side of the two wire clamping pieces 62 away from the headphone receiving seat 5. The transverse extension section 42 is clamped on the side of the wire clamping post 61 close to the headphone receiving seat 5 and on the side of the two wire clamping pieces 62 away from the headphone receiving seat 5. This design can fix the first flexible circuit board 4, and the fixation of the transverse extension section 42 is simple and convenient. The two sides of the wire clamping post 61 are hollowed out to form a hollow area 66, which can increase the heat dissipation of the battery 10 on the battery holder 6 and facilitate the winding of the transverse extension section 42 on the wire clamping post 61 and the two wire clamping pieces 62 during assembly.

[0042] The first flexible circuit board 4 includes two power supply circuit boards 43, and the lateral extension sections 42 are electrically connected to the two power supply circuit boards 43 respectively. The two power supply circuit boards 43 are installed on the side of the battery holder 6 close to the earphone receiving seat 5, and the two groups of charging terminals 41 are respectively provided on the two power supply circuit boards 43. The provision of the two power supply circuit boards 43 can facilitate the installation, fixation and electrical connection of the two groups of charging terminals 41. The power supply circuit board 43 is installed on the side of the battery holder 6 close to the earphone receiving seat 5, which can make it easier to insert the charging terminals 41 on the power supply circuit board 43 into the earphone receiving slot 51. An opening 511 corresponding to the charging terminal 41 can be provided on the side of the earphone receiving slot 51, and each charging terminal 41 is inserted into the earphone receiving slot 51 through the opening 511. Specifically, as Figures 5 to 7As shown, a clamping portion 63 is provided on the side of the battery holder 6 close to the earphone receiving seat 5, and the clamping portion 63 includes a first clamping arm 631 and a second clamping arm 632; the power supply circuit board 43 is clamped between the first clamping arm 631 and the second clamping arm 632, and between the clamping piece 62 and the side wall of the hollow area 66. By providing the clamping portion 63 on the battery holder 6, the power supply circuit board 43 can be compactly fixed between the first clamping arm 631 and the second clamping arm 632, and between the clamping piece 62 and the side wall of the hollow area 66, which helps to further optimize space utilization, making the internal structure of the earphone charging compartment more compact, and at the same time ensuring that the power supply circuit board 43 is firmly fixed, reducing the risk of displacement or damage due to vibration or impact. During assembly, the power supply circuit board 43 can be directly clamped into place, which simplifies the assembly process and does not require additional fixings or complicated installation steps.

[0043] Specifically, the first clamp arm 631 is connected to the side of the battery holder 6 close to the earphone storage seat 5, and the second clamp arm 632 is arranged opposite to the first clamp arm 631; the first clamp arm 631 is taller than the second clamp arm 632; the second clamp arm 632 and the top of the clamping piece 62 are provided with an inclined surface 64 on the side close to the power supply circuit board 43. The height of the first clamp arm 631 is taller than the second clamp arm 632, which makes it easier to slide down against the higher first clamp arm 631 during assembly to insert the power supply circuit board 43 between the first clamp arm 631 and the second clamp arm 632. The top of the second clamp arm 632 and the clamping piece 62 are provided with an inclined surface 64 on the side close to the power supply circuit board 43, which makes it easier to push the power supply circuit board 43 into the clamping position, reducing the difficulty of assembly.

[0044] Further, combined with Figures 8 to 10 As shown, the first flexible circuit board 4 includes an inductive connection section 44, which is electrically connected to a power supply circuit board 43 thereof. A magnetic sensor 45 is provided on the inductive connection section 44, and a second magnetic member 8 is installed on the inner side of the earphone receiving seat 5. The second magnetic member 8 is located next to the magnetic sensor 45, and a third magnetic member is provided on the flip cover 2 that is magnetically attracted to the second magnetic member 8. Through the mutual magnetic attraction between the third magnetic member and the second magnetic member 8, the flip cover 2 can be stably covered on the bottom shell 1. On this basis, the second magnetic member 8 is located next to the magnetic sensor 45, that is, when the flip cover 2 is opened and closed, the magnetic flux will change due to the approach and distance of the third magnetic member, so that the earphone charging compartment can sense the opening and closing of the flip cover 2 through the magnetic sensor 45, thereby realizing the opening and closing detection of the earphone charging compartment. In other words, because the second magnetic member 8 and the magnetic sensor 45 are disposed close to each other, the third magnetic member can both realize the magnetic attraction design of the flip cover 2 and realize the opening and closing detection of the flip cover 2 by the magnetic sensor 45, achieving two goals at one stroke. Specifically, the second magnetic member 8 and the third magnetic member are magnets.

[0045] Two vertically extending and oppositely arranged positioning ribs 52 are provided on the inner side of the headphone receiving seat 5, and the second magnetic attraction part 8 is installed between the two positioning ribs 52; a mounting groove 521 is provided on the two positioning ribs 52; an induction circuit board 46 is provided on the induction connecting section 44, and the magnetic sensor 45 is installed on the induction circuit board 46, and the induction circuit board 46 is mounted in the mounting groove 521 on the two positioning ribs 52; two bayonet holes 461 are provided on one side of the induction circuit board 46, and the bayonet holes 461 are respectively clamped on the two positioning ribs 52; a limiting portion 67 is provided on the side of the battery holder 6 facing the headphone receiving seat 5, and the limiting portion 67 is embedded between the two positioning ribs 52, and a closing portion 671 is provided on the end of the limiting portion 67 corresponding to the side of the induction circuit board 46 away from the bayonet hole 461, and the closing portion 671 extends toward the headphone receiving seat 5, and the limiting portion 67 forms a limit on the side of the induction circuit board 46 away from the bayonet hole 461.

[0046] By providing two opposing retaining ribs 52 on the inner side of the headphone receiving seat 5, each of which is provided with a retaining groove 521, the second magnetic element 8 and the power supply circuit board 43 can be effectively secured. Two retaining holes 461 on one side of the sensing circuit board 46 respectively engage the two retaining ribs 52, helping to improve assembly accuracy and consistency while preventing the sensing circuit board 46 from moving sideways. A closure portion 671 extends toward the headphone receiving seat 5 to position one end of the sensing circuit board 46, ultimately ensuring that the sensing circuit board 46 is fully installed and secured.

[0047] On the other hand, Figure 5 and Figure 7 As shown, the first flexible printed circuit board 4 includes a main control connection section 47 and a bent buffer section 48. The sensing connection section 44 is electrically connected to one power supply circuit board 43 via the bent buffer section 48. The main control connection section 47 is electrically connected to the main control circuit board 3 and to the other power supply circuit board 43 via the bent buffer section 48. The bent buffer section 48 provides a buffer for deformation between the main control connection section 47 and the main control circuit board 3, and between the sensing connection section 44 and the power supply circuit board 43, preventing tension during assembly that could affect the electrical connection stability of the first flexible printed circuit board 4.

[0048] like Figures 9 to 11As shown, each group of charging terminals 41 includes two charging terminals 41, and a first magnetic component 7 is installed at the position corresponding to the two earphone receiving slots 51 on the inner side of the earphone receiving seat 5, and the first magnetic component 7 is located between the corresponding two charging terminals 41. The provision of the first magnetic component 7 helps to magnetically fix the Bluetooth earphone in the earphone receiving slot 51. On this basis, at the same time, the first magnetic component 7 is provided between the two charging terminals 41, which can ensure that the charging terminals 41 can be accurately and stably docked with the charging contacts of the earphone, thereby improving the accuracy and reliability of charging. Specifically, the first magnetic component 7 is a magnet, and a magnet is also provided on the Bluetooth earphone at the position corresponding to the first magnetic component 7. Furthermore, the extension line of the connection between the two charging terminals of one group of charging terminals intersects with the extension line of the connection between the two charging terminals of another group of charging terminals and forms an angle.

[0049] The present invention also discloses an earphone kit, comprising a Bluetooth earphone and the above-mentioned earphone charging compartment, wherein the Bluetooth earphone can be stored and charged in the earphone storage seat 5. Since the earphone has the above-mentioned earphone charging compartment, it also has the same technical effects as the above-mentioned earphone charging compartment.

[0050] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. An earphone charging compartment, characterized in that: The device comprises a bottom shell, a flip cover, a main control circuit board, a first flexible circuit board, and an earphone receiving seat; the flip cover is rotatably connected to the bottom shell so that the flip cover can be closed and opened on the bottom shell; the main control circuit board, the earphone receiving seat, and the first flexible circuit board are arranged in the bottom shell, and the main circuit board is located at the bottom of the earphone receiving seat; The earphone receiving seat is provided with two earphone receiving slots, and the first flexible circuit board is provided with two sets of charging terminals; The first flexible circuit board is electrically connected to the main control circuit board and then led out, and is laterally extended on the inner side of the headphone receiving seat. One group of the charging terminals extends into the headphone receiving slot from the side of one of the headphone receiving slots, and the other group of the charging terminals extends into the headphone receiving slot from the side of the other headphone receiving slot.

2. The earphone charging case according to claim 1, characterized in that: The headphone charging case includes a battery seat, which is arranged in the bottom shell and located on the inner side of the headphone receiving seat; the first flexible circuit board is laterally extended on the inner side of the headphone receiving seat as a lateral extension section, and the lateral extension section is located between the battery seat and the headphone receiving seat.

3. The earphone charging case according to claim 2, wherein: The battery seat has a wire-holding post and two wire-holding pieces on one side facing the headphone receiving seat; both sides of the wire-holding post on the battery seat are hollowed out to form a hollow area, and the two wire-holding pieces are respectively located on both sides of the wire-holding post; the lateral extension section is clamped on the side of the wire-holding post close to the headphone receiving seat and the side of the two wire-holding pieces away from the headphone receiving seat.

4. The earphone charging compartment according to claim 3, characterized in that: The first flexible circuit board includes two power supply circuit boards, and the transverse extension sections are electrically connected to the two power supply circuit boards respectively; The two power supply circuit boards are mounted on one side of the battery seat close to the earphone receiving seat, and the two groups of charging terminals are respectively arranged on the two power supply circuit boards.

5. The earphone charging case according to claim 4, characterized in that: A clamping portion is provided on one side of the battery seat close to the earphone storage seat, and the clamping portion includes a first clamping arm and a second clamping arm; the power supply circuit board is clamped between the first clamping arm and the second clamping arm and between the clamping piece and the side wall of the hollow area.

6. The earphone charging case according to claim 5, characterized in that: The first card arm is connected to the side of the battery seat close to the headphone storage seat, and the second card arm is arranged opposite to the first card arm; the height of the first card arm is greater than that of the second card arm; the top of the second card arm and the wire clamping piece are provided with an inclined surface close to the side of the power supply circuit board.

7. The earphone charging case according to claim 5, characterized in that: The first flexible circuit board includes an inductive connection section, which is electrically connected to one of the power supply circuit boards. A magnetic sensor is provided on the inductive connection section. A second magnetic component is installed on the inner side of the headphone storage seat. The second magnetic component is located next to the magnetic sensor. A third magnetic component is provided on the flip cover and is magnetically attracted to the second magnetic component.

8. The earphone charging case according to claim 7, characterized in that: Two vertically extending and oppositely arranged positioning ribs are provided on the inner side of the headphone receiving seat, and the second magnetic attraction part is installed between the two positioning ribs; a mounting groove is provided on the two positioning ribs; an induction circuit board is provided on the induction connecting section, and the magnetic sensor is installed on the induction circuit board, and the induction circuit board is mounted in the mounting grooves on the two positioning ribs; two bayonet holes are provided on one side of the induction circuit board, and the bayonet holes are respectively clamped on the two positioning ribs; a limiting part is provided on the side of the battery seat facing the headphone receiving seat, and the limiting part is embedded between the two positioning ribs, and a closing part is provided on the end of the limiting part corresponding to the side of the induction circuit board away from the bayonet hole, and the closing part extends toward the headphone receiving seat, and the limiting part forms a limit on the side of the induction circuit board away from the bayonet hole; and / or The first flexible circuit board includes a main control connection section and a bent buffer section, and the sensing connection section is electrically connected to one of the power supply circuit boards through the bent buffer section; the main control connection section is electrically connected to the main control circuit board, and is electrically connected to the other power supply circuit board through the bent buffer section.

9. The earphone charging case according to any one of claims 1 to 8, characterized in that: Each group of charging terminals includes two charging terminals, and a first magnetic component is installed at the position corresponding to the two headphone storage slots on the inner side of the headphone storage seat, and the first magnetic component is located between the corresponding two charging terminals; the extension line of the connection line between the two charging terminals of one group of charging terminals intersects with the extension line of the connection line between the two charging terminals of another group of charging terminals and forms an angle.

10. An earphone kit, characterized in that: It comprises a Bluetooth headset and the headset charging box according to any one of claims 1 to 9, and the Bluetooth headset can be stored in the headset storage seat and charged.

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