Earphone charging box and earphone kit

By designing an earphone charging case that utilizes solar photovoltaic panels to charge the power supply battery and integrates a communication module, the problem of needing to modify the car's wiring for smart terminal vehicle control is solved, achieving convenient vehicle control without modification and stable communication signals.

WO2026097802A1PCT designated stage Publication Date: 2026-05-15SHENZHEN ZERO BEANS TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SHENZHEN ZERO BEANS TECHNOLOGY CO LTD
Filing Date
2025-04-30
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In existing technologies, operating the car key function of the vehicle system via a smart terminal requires modification of the car's wiring, which is inconvenient to use.

Method used

Design an earphone charging case, comprising a case body, a power supply battery, a main control board, electrical connectors, a solar photovoltaic panel, and a communication module. The solar photovoltaic panel charges the power supply battery, and the communication module communicates with the vehicle's infotainment system and mobile terminal to achieve vehicle control functions without modifying the car's wiring.

Benefits of technology

It improves the convenience of vehicle control via smart terminals, simplifies charging methods, and ensures the stability of communication signals and the effectiveness of vehicle control.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application discloses an earphone charging box and an earphone kit. A communication module is mounted in a box body, so that the communication module can be communicatively connected to an in-vehicle infotainment system nearby, and thus a mobile terminal such as a mobile phone or a smart watch can realize communication control over an automobile by means of the communication module from the outside of the automobile. The charging box can be suctioned on the front windshield of the automobile, so that a solar photovoltaic panel is close to the front windshield, and the solar photovoltaic panel can use solar energy irradiated into the front windshield to charge a power supply battery.
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Description

Earphone charging case and earphone kit Technical Field

[0001] This application relates to the field of car key technology, and in particular to an earphone charging case and earphone kit. Background Technology

[0002] With the continuous development of technology, smart terminals have become an indispensable part of people's lives. One particularly convenient function is operating the car key via a smart terminal. This is achieved by using communication components installed within the smart terminal to receive and transmit frequency signals from the vehicle's infotainment system, allowing users to operate the car key function through the smart terminal. However, in some technologies, operating the car key function via a smart terminal requires modifying the car's wiring, which is inconvenient.

[0003] Application content

[0004] The main purpose of this application is to propose an earphone charging case that aims to solve the technical problem of how to improve the convenience of vehicle control via smart terminals.

[0005] To achieve the above objectives, the earphone charging case proposed in this application includes:

[0006] The housing has a first sidewall and a second sidewall facing away from each other. The first sidewall is provided with a charging slot for accommodating the earphones. The housing is provided with a mounting cavity. The second sidewall is provided with a through hole communicating with the mounting cavity.

[0007] A power supply battery is installed in the mounting cavity;

[0008] The main control board is installed in the mounting cavity and electrically connected to the power supply battery.

[0009] An electrical connector is installed in the mounting cavity and electrically connected to the main control board. The electrical connector is at least partially exposed outside the wall of the charging slot to be electrically connected to the earphone housed in the charging slot.

[0010] A solar photovoltaic panel is installed on the outer surface of the second sidewall and is electrically connected to the main control board through the via.

[0011] A communication module is installed on the main control board. The communication module is used to communicate with the vehicle's infotainment system and mobile terminal, so that the mobile terminal can control the vehicle through the communication module.

[0012] Optionally, the outer surface of the second sidewall is recessed with a groove, the through hole is opened at the bottom of the groove, and the solar photovoltaic panel is installed in the groove.

[0013] Optionally, the portion of the second sidewall circumferentially disposed in the settling tank is covered with an adhesive layer, which is used to attach the box body to an external structure.

[0014] Optionally, the electrical connector is mounted on the surface of the main control board facing the first side wall, and the battery is mounted on the surface of the main control board facing the second side wall, forming a heat-insulating space between the battery and the second side wall.

[0015] Optionally, the earphone charging case further includes a geolocation module, which is installed in the mounting cavity and electrically connected to the main control board.

[0016] Optionally, the earphone charging case further includes an ETC module, which is installed in the mounting cavity and electrically connected to the main control board.

[0017] Optionally, the earphone charging case further includes a temperature sensor and a display screen. The temperature sensor is installed inside the mounting cavity, and the display screen is exposed on the first side wall. Both the temperature sensor and the display screen are electrically connected to the main control board. The temperature sensor is used to detect the ambient temperature, and the display screen is used to display the detection result of the temperature sensor.

[0018] Optionally, the earphone charging case further includes a magnetic attractor installed in the mounting cavity, the magnetic attractor being adjacent to the wall of the charging slot to generate a magnetic attraction force on the earphones housed in the charging slot.

[0019] Optionally, the earphone charging case further includes a wireless networking module installed in the mounting cavity. The wireless networking module is electrically connected to the main control board for enabling wireless networking of mobile devices.

[0020] This application also proposes an earphone kit, including earphones and an earphone charging case as described above, wherein the earphones are detachably mounted in the charging slot of the earphone charging case and electrically connected to the electrical connector of the earphone charging case.

[0021] In the technical solution of this earphone charging case, the charging slot of the case allows for the installation of earphones. The earphones have exposed charging components. After the earphones are installed in the charging slot, their charging components connect to the electrical connectors within the charging slot, thus electrically connecting the main control board to the earphones' charging components. Under the control of the main control board, the power supply battery inside the case charges the battery inside the earphones through the electrical connectors and the charging components, enabling the earphone charging case to charge the earphones. A communication module is installed inside the case, allowing it to communicate with the vehicle's infotainment system. This allows mobile terminals such as smartphones or smartwatches to control the car from outside the vehicle via the communication module. Therefore, when using the earphone charging case, only the communication module needs to be paired with the vehicle's infotainment system and the mobile terminal; no modification to the vehicle's wiring or the mobile terminal's hardware is required, improving vehicle control convenience. The charging case can be magnetically attached to the car's windshield, allowing a solar photovoltaic panel to be close to the windshield. The solar photovoltaic panel can utilize solar energy entering the windshield to charge the power supply battery, simplifying the charging method for the earphone charging case. Since the earphone charging case is in a relatively stable position inside the vehicle, the distance between the communication module and the vehicle's infotainment system can be kept relatively stable, thereby ensuring the strength of the communication signal between the communication module and the vehicle's infotainment system and improving the vehicle control effect. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 is a structural schematic diagram of an embodiment of the earphone charging case of this application;

[0024] Figure 2 is a structural schematic diagram of another embodiment of the earphone charging case of this application;

[0025] Figure 3 is an exploded view of the structure of an embodiment of the earphone charging case of this application;

[0026] Figure 4 is a structural cross-sectional view of an embodiment of the earphone charging case of this application;

[0027] Figure 5 is a structural schematic diagram of an embodiment of the headphone kit of this application.

[0028] Explanation of icon numbers:

[0029] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0033] With the continuous development of technology, smart terminals have become an indispensable part of people's lives. One particularly convenient function is operating the car key via a smart terminal. This is achieved by using communication components installed within the smart terminal to receive and transmit frequency signals from the vehicle's infotainment system, allowing users to operate the car key function through the smart terminal. However, in some technologies, operating the car key function via a smart terminal requires modifying the car's wiring, which is inconvenient.

[0034] This application proposes an earphone charging case 100, which aims to solve the technical problem of how to improve the convenience of vehicle control by smart terminals.

[0035] In this embodiment of the application, as shown in Figures 1 to 4, the earphone charging case 100 includes: a case body 10, the case body 10 having a first sidewall 11 and a second sidewall 12 facing away from each other, the first sidewall 11 having a charging slot 111 for accommodating earphones 200, the case body 10 having a mounting cavity 13, and the second sidewall 12 having a through hole 121 communicating with the mounting cavity 13; a power supply battery 20, the power supply battery 20 being installed in the mounting cavity 13; a main control board 30, the main control board 30 being installed in the mounting cavity 13 and electrically connected to the power supply battery 20; and an electrical connector 40, the electrical connector 40 being... The electrical connector 40 is installed in the mounting cavity 13 and electrically connected to the main control board 30. The electrical connector 40 is at least partially exposed on the wall of the charging slot 111 to be electrically connected to the earphone 200 housed in the charging slot 111. The solar photovoltaic panel 50 is installed on the outer surface of the second side wall 12 and electrically connected to the main control board 30 through the through hole 121. The communication module 60 is installed on the main control board 30 and is used to communicate with the vehicle's infotainment system and mobile terminal so that the mobile terminal can control the vehicle through the communication module 60.

[0036] In this embodiment, the earphone 200 can be a wireless earphone 200, such as a Bluetooth earphone 200. The housing 10 is generally rectangular, but it can also be cylindrical or irregularly shaped. The earphone 200 can be detachably housed in the charging slot 111, meaning the earphone 200 can be inserted into the charging slot 111 and removed from it. When the earphone 200 is installed in the charging slot 111, the charging portion on the earphone 200 is connected to or abuts against the electrical connector 40 inside the charging slot 111. For example, the earphone 200 has a battery and exposed charging contacts. The battery is electrically connected to the charging contacts. The electrical connector 40 includes a conductive pin, one end of which is exposed outside the wall of the charging slot 111, and the other end is electrically connected to the main control board 30. When the earphone 200 is installed in the charging slot 111, the charging contacts abut against the end of the conductive pin, thereby achieving an electrical connection between the main control board 30 and the battery of the earphone 200. The main control board 30 can distribute power to the earphone 200. The power supply battery 20 can be charged by mains power to store power. When the earphone charging case 100 is working, the power supply battery 20 and the main control board 30 provide power, and then the main control board 30 distributes the power to the battery of the earphone 200.

[0037] The solar photovoltaic panel 50 is a power generation device that generates direct current when exposed to sunlight. It consists of thin, solid-state photovoltaic cells made almost entirely of semiconductor materials (such as silicon). The solar photovoltaic panel 50 can be electrically connected to the charging circuit on the main control board 30 via conductive sheets or wires passing through the through-hole 121. The headphone charging case 100 can be attached to the windshield or window glass inside the car. In this case, the second sidewall 12 is attached to the windshield or window glass. The solar photovoltaic panel 50 can be exposed to sunlight through the transparent windshield or window glass, thereby using solar energy to charge the power supply battery 20, simplifying the charging method of the headphone charging case 100 and saving electricity costs. After the user parks the car in a fixed position and leaves the car, the user can remove the headphones 200 from the charging slot 111 and use them, leaving the headphone charging case 100 inside the car. The headphone charging case 100 attached to the windshield or window glass can be charged automatically by solar energy, improving the charging convenience of the headphone charging case 100.

[0038] The communication module 60 can be paired and communicate with the vehicle's infotainment system and the user's mobile terminal. The mobile terminal is a smart terminal, such as a mobile phone, smartwatch, or smart bracelet, which is a smart device that the user can carry with them.

[0039] The communication module 60 allows users to wirelessly communicate with the vehicle's infotainment system via a mobile terminal, enabling functions such as locking and unlocking the car. The communication module 60 can communicate with the mobile terminal and the vehicle's infotainment system in various ways, such as via Bluetooth, 3G, 4G, or 5G networks; no specific method is specified here.

[0040] For example, the communication module 60 can be part of a smart key system. A smart key system (PASSIVE KEYLESS ENTER), or PKE for short, employs RFID wireless radio frequency technology and a vehicle identification coding system. It utilizes a miniaturized, low-power radio frequency antenna development scheme, integrating a remote control system and a keyless system. It retains traditional vehicle circuit protection, achieving dual radio frequency systems and dual anti-theft protection. In the PKE system, the car acts as a base station, and the parking number plate acts as a transponder to achieve two-way communication. The communication module 60 includes components such as a receiving antenna, a microcontroller, a high-frequency transmitting circuit, a low-frequency receiving circuit, and control switches.

[0041] Of course, the communication module 60 can also be a component in ultra-wideband wireless carrier communication technology. Ultra-wideband (UWB) is a new wireless technology that differs greatly from traditional communication technologies. It transmits and receives data from vehicles using extremely narrow pulses at or below the nanosecond level, with a bandwidth in the range of 3.1 to 10.6 GHz, making it less susceptible to interference from other signals. Through UWB interaction between the parking number plate and the vehicle, and utilizing positioning algorithms, the distance to the vehicle can be identified at the centimeter level, enabling rapid response and allowing users to control their vehicles automatically and seamlessly using the parking number plate.

[0042] The communication module 60 is installed in the housing 10, allowing it to connect to the vehicle's infotainment system nearby. This enables mobile devices such as smartphones or smartwatches to control the vehicle from outside the car via the communication module 60. Thus, when using the earphone charging case 100, only the communication module 60 needs to be paired with the vehicle's infotainment system and the mobile terminal; no modifications to the vehicle's wiring or the mobile terminal's hardware are required, improving vehicle control convenience. Because the earphone charging case 100's position inside the vehicle is relatively stable, the distance between the communication module 60 and the vehicle's infotainment system remains relatively stable, ensuring strong communication signals between them and improving vehicle control performance.

[0043] Specifically, as shown in Figure 3, a recessed groove 122 is provided on the outer surface of the second sidewall 12, and the through hole 121 is formed at the bottom of the groove 122. The solar photovoltaic panel 50 is installed in the groove 122. The solar photovoltaic panel 50 does not protrude from the opening of the groove 122, so that when the second sidewall 12 is attached to the car window glass or windshield, the solar photovoltaic panel 50 will not be squeezed, thereby improving the protection effect of the solar photovoltaic panel 50.

[0044] In practical applications, as shown in Figures 3 and 4, the portion of the second sidewall 12 circumferentially located in the recess 122 is covered with an adhesive layer 124. The adhesive layer 124 is used to attach the box body 10 to an external structure. The adhesive layer 124 can be a suction cup or an adhesive layer; there are no restrictions here, as long as it can stably attach the box body 10 to the windshield or window of a car.

[0045] For example, as shown in FIG4, the electrical connector 40 is mounted on the surface of the main control board 30 facing the first sidewall 11, and the battery is mounted on the surface of the main control board 30 facing the second sidewall 12. A heat insulation space 14 is formed between the battery and the second sidewall 12. The heat insulation space 14 can prevent the battery from directly contacting the second sidewall 12, thereby preventing the heat of the solar photovoltaic panel 50 from being conducted to the battery through the second sidewall 12, so as to improve the operating stability of the battery.

[0046] Specifically, the earphone charging case 100 also includes a geolocation module, which is installed in the mounting cavity 13 and electrically connected to the main control board 30. The geolocation module can be a Global Positioning System (GPS) module, which allows the user to obtain their current geographical location and the distance between themselves and the vehicle, thereby further improving the usability of the earphone charging case 100.

[0047] In practical applications, the earphone charging case 100 also includes an ETC module, which is installed in the mounting cavity 13 and electrically connected to the main control board 30. ETC (Electronic Toll Collection) is a system that uses dedicated short-range communication between an electronic tag installed on the vehicle's windshield and a microwave antenna in the ETC lane at the toll station. It utilizes computer networking technology to conduct back-end settlement processing with banks, enabling vehicles to pay highway or bridge tolls without stopping. Installing the ETC module in the earphone charging case 100 enables the earphone charging case 100 to have ETC functionality, further improving its usability.

[0048] For example, as shown in Figures 1 and 5, the earphone charging case 100 also includes a temperature sensor and a display screen 70. The temperature sensor is installed inside the mounting cavity 13, and the display screen 70 is exposed on the first side wall 11. Both the temperature sensor and the display screen 70 are electrically connected to the main control board 30. The temperature sensor is used to detect the ambient temperature, and the display screen 70 is used to display the detection result of the temperature sensor. The temperature sensor can monitor the ambient temperature inside the vehicle in real time, and then display it on the first side wall 11 through the display screen 70, so that the user can more easily obtain the temperature situation inside the vehicle, further improving the usability of the earphone charging case 100.

[0049] Specifically, as shown in Figure 4, the earphone charging case 100 also includes a magnetic attractor installed in the mounting cavity 13. The magnetic attractor is adjacent to the wall of the charging slot 111 to generate a magnetic attraction force on the earphone 200 housed in the charging slot 111. The magnetic attractor can be a magnet, and a corresponding magnetic component can be installed inside the earphone 200. The magnetic attractor and the magnetic component attract each other, which can stably attach the earphone 200 in the charging slot 111, improving the installation stability of the earphone 200 in the charging slot 111 and preventing the earphone 200 from easily falling out of the charging slot 111 when the car vibrates or bumps.

[0050] In practical applications, the earphone charging case 100 also includes a wireless networking module installed in the mounting cavity 13. This wireless networking module is electrically connected to the main control board 30 and is used to enable wireless networking for mobile devices. The wireless networking module, also known as a Wi-Fi module, emits radio waves to allow smartphones, tablets, smartwatches, and other mobile devices to connect to the network. Installing the wireless networking module inside the earphone charging case 100 enables it to function as a wireless router, improving its usability.

[0051] As shown in Figure 5, this application also proposes an earphone kit, which includes earphones 200 and an earphone charging case 100. The specific structure of the earphone charging case 100 is as described in the above embodiments. Since this earphone kit adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The earphones 200 are detachably installed in the charging slot 111 of the earphone charging case 100 and are electrically connected to the electrical connector 40 of the earphone charging case 100.

[0052] The above description is merely an optional embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. An earphone charging case, wherein, include: The housing has a first sidewall and a second sidewall facing away from each other. The first sidewall is provided with a charging slot for accommodating the earphones. The housing is provided with a mounting cavity. The second sidewall is provided with a through hole communicating with the mounting cavity. A power supply battery is installed in the mounting cavity; The main control board is installed in the mounting cavity and electrically connected to the power supply battery. An electrical connector is installed in the mounting cavity and electrically connected to the main control board. The electrical connector is at least partially exposed outside the wall of the charging slot to be electrically connected to the earphone housed in the charging slot. A solar photovoltaic panel is installed on the outer surface of the second sidewall and is electrically connected to the main control board through the via. A communication module is installed on the main control board. The communication module is used to communicate with the vehicle's infotainment system and mobile terminal, so that the mobile terminal can control the vehicle through the communication module.

2. The earphone charging case as described in claim 1, wherein, The outer surface of the second sidewall is recessed with a groove, the through hole is opened at the bottom of the groove, and the solar photovoltaic panel is installed in the groove.

3. The earphone charging case as described in claim 2, wherein, The portion of the second sidewall surrounding the sink is covered with an adhesive layer, which is used to attach the box body to an external structure.

4. The earphone charging case as described in claim 1, wherein, Electrical connectors are mounted on the main control board facing the first sidewall, and the battery is mounted on the main control board facing the second sidewall, forming a heat-insulating space between the battery and the second sidewall.

5. The earphone charging case as described in claim 1, wherein, The earphone charging case also includes a geolocation module, which is installed in the mounting cavity and electrically connected to the main control board.

6. The earphone charging case as described in claim 1, wherein, The earphone charging case also includes an ETC module, which is installed in the mounting cavity and electrically connected to the main control board.

7. The earphone charging case as described in claim 1, wherein, The earphone charging case also includes a temperature sensor and a display screen. The temperature sensor is installed inside the mounting cavity, and the display screen is exposed on the first side wall. Both the temperature sensor and the display screen are electrically connected to the main control board. The temperature sensor is used to detect the ambient temperature, and the display screen is used to display the detection result of the temperature sensor.

8. The earphone charging case as described in claim 1, wherein, The earphone charging case also includes a magnetic suction member installed in the mounting cavity. The magnetic suction member is adjacent to the wall of the charging slot to generate a magnetic attraction force on the earphones housed in the charging slot.

9. The earphone charging case as described in claim 1, wherein, The earphone charging case also includes a wireless networking module installed in the mounting cavity. The wireless networking module is electrically connected to the main control board and is used to enable wireless networking for mobile devices.

10. The earphone charging case as described in claim 2, wherein, Electrical connectors are mounted on the main control board facing the first sidewall, and the battery is mounted on the main control board facing the second sidewall, forming a heat-insulating space between the battery and the second sidewall.

11. The earphone charging case as described in claim 2, wherein, The earphone charging case also includes a geolocation module, which is installed in the mounting cavity and electrically connected to the main control board.

12. The earphone charging case as described in claim 2, wherein, The earphone charging case also includes an ETC module, which is installed in the mounting cavity and electrically connected to the main control board.

13. The earphone charging case as described in claim 2, wherein, The earphone charging case also includes a temperature sensor and a display screen. The temperature sensor is installed inside the mounting cavity, and the display screen is exposed on the first side wall. Both the temperature sensor and the display screen are electrically connected to the main control board. The temperature sensor is used to detect the ambient temperature, and the display screen is used to display the detection result of the temperature sensor.

14. The earphone charging case as described in claim 2, wherein, The earphone charging case also includes a magnetic suction member installed in the mounting cavity. The magnetic suction member is adjacent to the wall of the charging slot to generate a magnetic attraction force on the earphones housed in the charging slot.

15. A headphone kit, wherein, The device includes earphones and an earphone charging case. The earphone charging case includes a housing, a power supply battery, a main control board, electrical connectors, a solar photovoltaic panel, and a communication module. The housing has a first sidewall and a second sidewall facing away from each other. The first sidewall has a charging slot for housing the earphones. The housing has a mounting cavity. The second sidewall has a through hole communicating with the mounting cavity. The power supply battery is installed in the mounting cavity. The main control board is installed in the mounting cavity and electrically connected to the power supply battery. The electrical connector is installed in the mounting cavity and electrically connected to the main control board. The electrical connector is at least partially exposed on the wall of the charging slot to electrically connect with the earphones housed in the charging slot. The solar photovoltaic panel is installed on the outer surface of the second sidewall and electrically connected to the main control board through the through hole. The communication module is installed on the main control board and is used to communicate with the vehicle's infotainment system and a mobile terminal, allowing the mobile terminal to control the vehicle through the communication module. The earphones are detachably installed in the charging slot of the earphone charging case and electrically connected to the electrical connector of the earphone charging case.