A TWS earphone charging case with electromagnet-based smart pop-out earphones and its implementation method.

Abstract

This invention discloses a TWS earphone charging case with an electromagnet-based intelligent pop-out earphone, belonging to the field of audio technology. It includes a lower cover, with a PCBA fixed to the bottom of the lower cover. An inner shell of the lower cover is mounted above the PCBA. Several spring-loaded pins are symmetrically mounted on the lower sides of the inner shell. An electromagnet is mounted above each of the spring-loaded pins on both sides. Earphone blocks are mounted above two of the electromagnets, and earphones are mounted above two of the earphone blocks. This invention, through the coordinated arrangement of an upper cover, an inner shell, an upper cover magnet, a hinge, a lower cover, an inner shell, a lower cover magnet, a Hall switch, earphone blocks, electromagnets, a PCBA, and spring-loaded pins, enables the charging case to intelligently pop out earphones, facilitating the removal and use of the earphones from the charging case. This solves the problem of inconvenience in removing earphones from charging cases and has strong market appeal.

Description

Technical Field

[0001] This invention belongs to the field of audio technology, specifically relating to a TWS earphone charging case that uses an electromagnet to intelligently pop up earphones and its implementation method. Background Technology

[0002] TWS earbuds are currently very popular in the market, with many styles and charging cases of various shapes. However, it is not difficult to find that it is not always easy to take out the earbuds after opening the charging case. The inconvenience of taking out the earbuds from the charging case is a common problem of TWS earbuds. I have also experienced the latest generation of TWS earbuds from Apple, Huawei, Samsung and other companies, and they all have the same problem. Summary of the Invention

[0003] To address the problems mentioned in the background section, this invention provides a TWS earphone charging case with an electromagnet-based intelligent pop-up earphone and its implementation method, featuring an intelligent pop-up earphone function and ease of use.

[0004] Another objective of this invention is to provide a method for implementing a TWS earphone charging case that uses an electromagnet to intelligently pop out earphones.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a TWS earphone charging case using electromagnet-based smart pop-up earphones, comprising a lower cover, a PCBA fixed to the bottom of the lower cover, an inner shell of the lower cover mounted on the top of the PCBA, several spring pins symmetrically mounted on the lower sides of the inner shell of the lower cover, an electromagnet mounted above each of the spring pins on both sides, an earphone iron block mounted above each of the two electromagnets, and an earphone mounted above each of the two earphone iron blocks, a lower cover magnet fixed on the inner shell of the lower cover and in front of the middle position of the two earphones, a Hall switch fixed on the inner shell of the lower cover and in rear of the middle position of the two earphones, an upper cover mounted on the top of the lower cover, the rear side of the upper cover and the rear side of the lower cover being hinged together by a pivot, an inner shell of the upper cover fixed inside the upper cover, and an upper cover magnet mounted on the rear of the inner shell of the upper cover.

[0006] Furthermore, in this invention, the PCBA includes a main control chip MCU, a power boost chip, and a control circuit, wherein the main control chip MCU and the power boost chip are both electrically connected to the control circuit.

[0007] Furthermore, in this invention, the electromagnet includes an iron core and a conductive winding, wherein the outer winding of the iron core is a conductive winding that matches its power.

[0008] Furthermore, in this invention, the height range of the pop-out earphone is 3mm to 5mm.

[0009] Furthermore, in this invention, both the lower inner shell and the upper inner shell are provided with earphone receiving cavities at positions corresponding to the earphones.

[0010] Furthermore, in this invention, a first mounting cavity is provided on the inner shell of the lower cover and at the positions corresponding to the lower cover magnet and the Hall switch, and a second mounting cavity is provided on the inner shell of the upper cover and at the positions corresponding to the upper cover magnet.

[0011] Furthermore, the implementation method of a TWS earphone charging case using an electromagnet-based intelligent pop-out earphone includes the following steps:

[0012] (1) Opening: When the top cover is opened through the hinge, the Hall switch and the magnet of the top cover output a low level to the MCU on the PCBA through the weak magnetic induction of the Hall switch. When the MCU recognizes the low level output by the Hall switch, the MCU outputs a high level enable signal for two seconds to one of its IO ports, driving the boost circuit to work. When the voltage of the electromagnet is boosted to 12V, the electromagnet works and magnetically attracts the iron block of the earphone for two seconds. After two seconds, the MCU's IO port outputs a low level, the boost circuit does not work, there is no output of 12V voltage, the electromagnet does not work, and the magnetic attraction disappears. At this time, the spring pin will lift the earphone 3MM to 5MM high according to its own force. The left and right earphones have the same control action, which will not be repeated. This makes it easy to take out the earphone.

[0013] (2) Close: When the top cover is closed by the hinge, the magnets of the top cover and the bottom cover attract each other to restore the headphones to their original state. At the same time, the Hall switch and the magnet of the top cover output a high level to the MCU on the PCBA through the strong magnetic induction of the Hall switch. When the MCU recognizes the high level output by the Hall switch, the electromagnet does not move and maintains the current state.

[0014] Furthermore, in this invention, the PCBA includes a main control chip (MCU), a power boost chip, and a control circuit, wherein the main control chip (MCU) and the power boost chip are both electrically connected to the control circuit; the electromagnet includes an iron core and a conductive winding, wherein the conductive winding matching its power is wound around the outside of the iron core; the height range of the pop-out earphone is 3mm to 5mm; earphone receiving cavities are provided on both the lower cover inner shell and the upper cover inner shell at the position corresponding to the earphone; a first mounting cavity is provided on the lower cover inner shell at the position corresponding to the lower cover magnet and the Hall switch, and a second mounting cavity is provided on the upper cover inner shell at the position corresponding to the upper cover magnet.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention, through the combination of multiple structures including an upper cover, an inner shell of the upper cover, an upper cover magnet, a pivot, a lower cover, an inner shell of the lower cover, a lower cover magnet, a Hall switch, an earphone iron block, an electromagnet, a PCBA, and a spring pin, enables the charging case to intelligently eject earphones, thereby facilitating the removal and use of earphones from the charging case. This solves the problem of inconvenience in removing earphones from the charging case and has good market appeal. Attached Figure Description

[0017] Figure 1 This is a frontal structural diagram of the present invention.

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the vertical section of the present invention.

[0020] Figure 4 This is a structural schematic diagram of the charging case of the present invention in the charging state.

[0021] Figure 5 This is a schematic diagram of the charging case in the original state of the earphones of the present invention, with the case open.

[0022] Figure 6 This is a schematic diagram of the charging case in the pop-up state and the open state of the earphones according to the present invention.

[0023] In the diagram: 1. Top cover; 2. Bottom cover; 3. Spring pin; 4. PCBA; 5. Electromagnet; 6. Earphone iron block; 7. Earphone; 8. Bottom cover inner shell; 9. Bottom cover magnet; 10. Top cover inner shell; 11. Top cover magnet; 12. Hall switch; 13. Shaft. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1

[0026] Please see Figure 1-6This invention provides the following technical solution: a TWS earphone charging case using electromagnet-based smart pop-up earphones, comprising a lower cover 2, with a PCBA 4 fixed to the bottom of the lower cover 2. In this embodiment, preferably, the PCBA 4 includes a main control chip (MCU), a power boost chip, and a control circuit for normal operation. The MCU and the power boost chip are electrically connected to the control circuit. A lower cover inner shell 8 is mounted on top of the PCBA 4. Several spring pins 3 are symmetrically mounted on the lower sides of the lower cover inner shell 8. Electromagnets 5 are mounted above each of the spring pins 3. In this embodiment, preferably, the electromagnet 5 includes an iron core and a conductive winding, with the conductive winding matching its power winding wound around the outside of the iron core. Earphone iron blocks 6 are mounted above each of the two electromagnets 5, and earphones 7 are mounted above each of the two earphone iron blocks 6. For easy removal of the earphones 7... In this embodiment, preferably, the height of the pop-out earphone 7 is 3mm to 5mm. A lower cover magnet 9 is fixed on the lower cover inner shell 8, located in front of the middle position of the two earphones 7. A Hall switch 12 is fixed on the lower cover inner shell 8, located behind the middle position of the two earphones 7. An upper cover 1 is installed above the lower cover 2. The rear side of the upper cover 1 and the rear side of the lower cover 2 are hinged and fixed by a pivot 13. An upper cover inner shell 10 is fixed inside the upper cover 1. In order to facilitate the placement of the earphone 7, in this embodiment, preferably, earphone receiving cavities are opened on both the lower cover inner shell 8 and the upper cover inner shell 10 at the positions corresponding to the earphones 7. An upper cover magnet 11 is installed at the rear of the upper cover inner shell 10. In order to facilitate installation and fixation, in this embodiment, preferably, a first mounting cavity is opened on the lower cover inner shell 8 at the positions corresponding to the lower cover magnet 9 and the Hall switch 12, and a second mounting cavity is opened on the upper cover inner shell 10 at the positions corresponding to the upper cover magnet 11.

[0027] In this embodiment, a method for implementing a TWS earphone charging case that uses an electromagnet to intelligently pop out earphones includes the following steps:

[0028] (1) Opening: When the top cover 1 is opened by the pivot 13, the Hall switch 12 and the top cover magnet 11 output a low level to the MCU on PCBA4 through the weak magnetic induction of the Hall switch 12. When the MCU recognizes the low level output by the Hall switch 12, the MCU outputs a high level enable signal for two seconds to its IO port, driving the boost circuit to work. When the voltage of the electromagnet 5 is boosted to 12V, the electromagnet 5 works. The electromagnet 5 magnetically holds the earphone iron block 6 for two seconds. After two seconds, the MCU's IO port outputs a low level, the boost circuit does not work, there is no output of 12V voltage, the electromagnet 5 does not work, and the magnetic attraction disappears. At this time, the spring pin 3 lifts the earphone 7 up to a height of 3MM to 5MM according to its own force. The left and right earphones 7 are controlled by the same action, which will not be repeated. This makes it easy to take out the earphone 7.

[0029] (2) Close: When the upper cover 1 is closed by the pivot 13, the upper cover magnet 11 and the lower cover magnet 9 attract each other to restore the earphone 7 to its original state. At the same time, Hall switch 12 and upper cover magnet 11 output a high level to the MCU on PCBA4 through the strong magnetic induction of Hall switch 12. When the MCU recognizes the high level output by Hall switch 12, the electromagnet 5 does not move and maintains the current state.

[0030] In this embodiment, PCBA4 includes a main control chip MCU, a power boost chip, and a control circuit. The main control chip MCU and the power boost chip are electrically connected to the control circuit. The electromagnet 5 includes an iron core and a conductive winding. The conductive winding matching its power is wound around the outside of the iron core. The height range of the pop-out earphone 7 is 3mm to 5mm. Earphone receiving cavities are provided on the lower inner shell 8 and the upper inner shell 10 at the positions corresponding to the earphone 7. A first mounting cavity is provided on the lower inner shell 8 at the positions corresponding to the lower magnet 9 and the Hall switch 12. A second mounting cavity is provided on the upper inner shell 10 at the positions corresponding to the upper magnet 11.

[0031] The working principle of this embodiment is as follows: When the top cover 1 is opened by the pivot 13, the Hall switch 12 and the top cover magnet 11 output a low level to the MCU on PCBA4 through the weak magnetic induction of the Hall switch 12. When the MCU recognizes the low level output by the Hall switch 12, the MCU outputs a high-level enable signal for two seconds to one of its IO ports, driving the boost circuit to work. When the voltage of the electromagnet 5 is boosted to 12V, the electromagnet 5 works. The electromagnet 5 magnetically attracts the earphone iron block 6 for two seconds. After two seconds, the MCU's IO port outputs a low level, the boost circuit does not work, there is no output of 12V voltage, the electromagnet 5 does not work, and the magnetic attraction disappears. At this time, the spring pin 3 springs the earphone 7 up to a height of 3MM to 5MM according to its own force. The left and right earphones 7 are controlled by the same action, which will not be described again. This makes it easy to take out the earphone 7.

[0032] Close: When the upper cover 1 is closed via the hinge 13, the upper cover magnet 11 and the lower cover magnet 9 attract each other to restore the earphone 7 to its original state. At the same time, the Hall switch 12 and the upper cover magnet 11 output a high level to the MCU on PCBA4 through the strong magnetic induction of the Hall switch 12. When the MCU recognizes the high level output by the Hall switch 12, the electromagnet 5 does not move and maintains the current state.

[0033] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A TWS earphone charging box with an electromagnet intelligent pop-up earphone, comprising a lower cover (2), characterized in that: A PCBA (4) is fixed to the bottom of the inner part of the lower cover (2). A lower cover inner shell (8) is installed above the PCBA (4). Several spring pins (3) are symmetrically installed on the lower sides of the lower cover inner shell (8). Electromagnets (5) are installed above the spring pins (3) on both sides. Earphone iron blocks (6) for being attracted by the electromagnets (5) are installed above the two electromagnets (5). Earphones (7) are installed above the two earphone iron blocks (6). The lower cover inner shell (8) is located on the middle of the two earphones (7). A lower cover magnet (9) is fixed at the front of the lower cover. A Hall switch (12) that outputs a low level to the main control chip MCU on the PCBA (4) is fixed on the inner shell (8) of the lower cover and located at the middle position of the two earphones (7). An upper cover (1) is installed above the lower cover (2). The rear side of the upper cover (1) and the rear side of the lower cover (2) are hinged and fixed by a pivot (13). An inner shell (10) of the upper cover (1) is fixed inside the upper cover (1). An upper cover magnet (11) is installed at the rear of the inner shell (10). The PCBA (4) includes a main control chip MCU, a power boost chip and a control circuit, wherein the main control chip MCU and the power boost chip are both electrically connected to the control circuit; The electromagnet (5) includes an iron core and a conductive winding, wherein the outer winding of the iron core is a conductive winding that matches its power.

2. The TWS earphone charging box with an electromagnet intelligent pop-up earphone according to claim 1, characterized in that: The height range of the popped-out earphone (7) is 3mm to 5mm.

3. The TWS earphone charging box with an electromagnet intelligent pop-up earphone according to claim 1, characterized in that: Both the lower inner shell (8) and the upper inner shell (10) have earphone receiving cavities at positions corresponding to the earphones (7).

4. The TWS earphone charging box with an electromagnet intelligent pop-up earphone according to claim 1, characterized in that: The lower cover inner shell (8) has a first mounting cavity on the same position as the lower cover magnet (9) and the Hall switch (12), and the upper cover inner shell (10) has a second mounting cavity on the same position as the upper cover magnet (11).

5. A TWS earphone charging case with an electromagnet-equipped smart pop-up earphone according to claim 1; the height range of the pop-up earphone (7) is 3MM to 5MM; an earphone receiving cavity is provided on the lower inner shell (8) and the upper inner shell (10) at the position corresponding to the earphone (7); a first mounting cavity is provided on the lower inner shell (8) at the position corresponding to the lower magnet (9) and the Hall switch (12), and a second mounting cavity is provided on the upper inner shell (10) at the position corresponding to the upper magnet (11).

6. The implementation method of the TWS earphone charging box with the electromagnetic intelligent pop-up earphone according to any one of claims 1-5, characterized in that, Includes the following steps: (1) Opening: When the top cover (1) is opened by the pivot (13), the Hall switch (12) and the magnet (11) of the top cover output a low level to the MCU on the PCBA (4) through the weak magnetic induction of the Hall switch (12). When the MCU recognizes the low level output by the Hall switch (12), the MCU outputs a high level enable signal for two seconds to its IO port, driving the boost circuit to work. When the voltage of the electromagnet (5) is boosted to 12V, the electromagnet (5) works. The electromagnet (5) magnetically attracts the iron block (6) of the earphone for two seconds. After two seconds, the IO port of the MCU outputs a low level, the boost circuit does not work, there is no output of 12V voltage, the electromagnet (5) does not work, and the magnetic attraction disappears. At this time, the spring pin (3) springs up the earphone (7) according to its own force. The left and right earphones (7) are controlled by the same action, which will not be repeated. This makes it easy to take out the earphone (7). (2) Close: When the upper cover (1) is closed by the pivot (13), the earphone (7) is restored to its original state by the attraction between the upper cover magnet (11) and the lower cover magnet (9). At the same time, the Hall switch (12) and the upper cover magnet (11) output a high level to the MCU on the PCBA (4) through the strong magnetic induction of the Hall switch (12). When the MCU recognizes the high level output by the Hall switch (12), the electromagnet (5) does not move and maintains the current state.

7. A TWS earphone charging case with an electromagnet-equipped smart pop-up earphone according to claim 6, wherein the height of the earphone (7) after popping out is 3mm to 5mm; an earphone receiving cavity is provided on the lower inner shell (8) and the upper inner shell (10) at the position corresponding to the earphone (7); a first mounting cavity is provided on the lower inner shell (8) at the position corresponding to the lower magnet (9) and the Hall switch (12), and a second mounting cavity is provided on the upper inner shell (10) at the position corresponding to the upper magnet (11).

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