Earphone charging box with camera function

Abstract

A headphone charging case with camera functionality includes a housing, comprising a cover and a base rotatably connected; an image acquisition module fixedly mounted on the cover and / or the base; and a circuit board disposed within the housing, comprising a main control module, a wireless communication module, and a power module. The power module supplies power to the image acquisition module, the main control module, and the wireless communication module. The image acquisition module is connected to the main control module, which acquires image data output by the image acquisition module and generates control signals. The wireless communication module is electrically connected to the main control module and transmits the image data to an external device. This invention achieves image acquisition and data transmission functions while maintaining a compact device, solving the problem of existing charging cases having limited functionality and failing to balance portability and shooting needs.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, specifically to a headphone charging case with camera function. Background Technology

[0002] With the widespread use of wireless headphones, the headphone charging case, as an accessory for headphones, is mainly used to store, charge, and maintain the status of headphones. In recent years, as users' demand for intelligent interactive experiences has increased, some products have gradually introduced wireless communication modules to display basic information such as battery level and connection status in conjunction with mobile devices.

[0003] However, most existing headphone charging cases are still limited to electrical connections and communication control, lacking any form of image acquisition capability. This makes it difficult to acquire and process environmental image information, resulting in a lack of scalability and applicability in emerging scenarios such as wearable-assisted photography, personal recording, and low-power portable monitoring. Therefore, there is an urgent need to propose a headphone charging case that integrates an image acquisition module and wireless image data transmission function in a compact structure to improve its functional adaptability in the smart terminal ecosystem. Utility Model Content

[0004] The purpose of this application is to provide an earphone charging case with camera function, which has the advantages of integrating image acquisition and wireless transmission functions in a compact structure, improving portability and ease of use.

[0005] This application provides an earphone charging case with a camera function, and the technical solution is as follows: An earphone charging case with camera function includes: The housing includes a cover and a base that are rotatably connected; An image acquisition module is fixedly mounted on the cover and / or base. The circuit board, housed within the housing, includes a main control module, a wireless communication module, and a power supply module. The power supply module provides power to the image acquisition module, the main control module, and the wireless communication module. The image acquisition module is connected to the main control module, which acquires image data output by the image acquisition module and generates control signals. The wireless communication module is electrically connected to the main control module and is used to send image data to external devices. The image acquisition module includes an image acquisition unit, a power filtering unit, and a control unit; The image acquisition unit is connected to the control unit and is used to acquire external image signals; The power filtering unit is connected to the power module and is used to filter the power module. The control unit is connected to the main control module and is used to convert external image signals into digital signals and send them to the main control module; The power supply filtering unit includes an AVDD filtering circuit, an IOVDD filtering circuit, and a DVDD filtering circuit. The AVDD filtering circuit includes a resistor R1, a capacitor C1, a capacitor C2, and a capacitor C3. One end of the resistor R1 is connected to the 2.8V power input terminal, and the other end is connected to the AVDD node. The capacitors C1, C2, and C3 are connected in parallel between AVDD and analog ground AGND. The IOVDD filter circuit includes resistor R2, capacitor C4, capacitor C5, and capacitor C6. One end of resistor R2 is connected to the 1.8V power input terminal, and the other end is connected to the IOVDD node. Capacitors C4, C5, and C6 are connected in parallel between IOVDD and digital ground DGND to filter the power supply of the input and output interfaces. The DVDD filter circuit includes resistor R3 and capacitors C7, C8, C9, C10, C11, and C12. One end of resistor R3 is connected to the 1.2V power input terminal, and the other end is connected to the DVDD node. Capacitors C7, C8, C9, C10, C11, and C12 are connected in parallel between DVDD and DGND.

[0006] Furthermore, this application also proposes that the power module includes a power supply protection unit and a step-down unit, wherein the power supply protection unit is used to protect the input power supply, and the step-down unit is used to convert the input power supply into the supply voltage.

[0007] Furthermore, this application also proposes that the cover body includes an upper cover and a lower cover, the base body includes a base shell and a base, the upper cover and the lower cover form a space for accommodating the image acquisition module, the base shell and the base form a cavity for accommodating the circuit board and the battery, and the lower cover and the base shell form a storage cavity for accommodating the earphone.

[0008] Furthermore, this application also proposes that a first magnetic element is provided between the top cover and the bottom cover, and a second, a third, and a fourth magnetic element are provided between the base shell and the base. The first and third magnetic elements are used to achieve a magnetic connection between the cover and the base, and the second and fourth magnetic elements are used to achieve a magnetic connection between the earphone and the base.

[0009] Furthermore, this application also proposes that the housing cavity is provided with charging contacts that contact the earphones, and the charging contacts are electrically connected to a circuit board for charging the earphones.

[0010] Furthermore, this application also proposes that the housing is provided with an interface and an LED light, the interface being used for power input connection, and the LED light being used to indicate the working status of the charging case and / or earphones.

[0011] Furthermore, this application also proposes to include a button module, a display module, an audio input module, an audio filtering module, an anti-static module, and a temperature sensing module. The button module is electrically connected to the main control module. The display module is disposed on the surface of the housing and connected to the main control module. The audio input module is used to collect ambient audio signals. The audio filtering module is connected between the audio input module and the main control module and is used to filter the collected audio signals. The anti-static module is disposed at the input end of the image acquisition module and is used to prevent electrostatic interference or impact. The temperature sensing module is used to detect temperature.

[0012] This utility model embodiment integrates an image acquisition module and a wireless communication module, achieving image acquisition and data transmission functions while maintaining the device's compactness. It solves the problem of existing charging boxes having limited functionality and failing to balance portability and shooting needs, and has the advantages of integrating image acquisition and wireless transmission functions in a compact structure, improving portability and ease of use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural block diagram of the present invention; Figure 2 This is the circuit diagram of the control unit of this utility model; Figure 3 This is the circuit diagram of the power supply filtering unit of this utility model; Figure 4 This is the circuit diagram of the step-down unit of this utility model; Figure 5 This is the circuit diagram of the power supply protection unit of this utility model; Figure 6 This is the circuit diagram of the audio input module of this utility model; Figure 7 This is a circuit diagram of the main control module of this utility model; Figure 8 This is the circuit diagram of the audio filtering module of this utility model; Figure 9 This is a circuit diagram of the wireless communication module of this utility model; Figure 10 This is a circuit diagram of the display module and button module of this utility model; Figure 11 This is the circuit diagram of the anti-static module and temperature sensing module of this utility model; Figure 12 This is a schematic diagram of the structure of this utility model; Figure 13 This is a schematic diagram of the structure of this utility model in its open state; Figure 14 This is a schematic diagram of the structure of this utility model in another open state; Figure 15 This is an exploded view of the cover of this utility model; Figure 16 This is an exploded view of the base of this utility model.

[0015] Figure label: 101. Housing; 102. Cover; 103. Top cover; 104. Bottom cover; 105. First magnetic component; 106. Image acquisition module; 107. Base; 108. Base shell; 109. Base bottom; 110. Storage cavity; 111. Charging contact; 112. Battery; 113. Second magnetic component; 114. Elastic component; 115. Earphone; 116. Third magnetic component; 117. Fourth magnetic component; 118. Interface; 119. Circuit board; 120. LED light; 121. Button; 201. Power supply filtering unit; 202. Control unit; 203. Main control module; 204. Wireless communication module; 205. Power supply module; 206. Power supply protection unit; 207. Step-down unit; 208. Button module; 209. Display module; 210. Audio input module; 211. Audio filtering module; 212. Anti-static module; 213. Temperature sensing module. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] In the existing technology, wireless earphone charging cases have long been limited to storage and charging functions. Although existing products can transmit power information through the wireless communication module 204, they lack image acquisition capabilities. When users need to take quick photos or record the environment without using a mobile phone, traditional charging cases cannot meet the needs. As a result, users still need to rely on other devices in scenarios such as sports recording and temporary monitoring, which is cumbersome to operate and inconvenient to carry.

[0021] To address the aforementioned issues, the inventors noted the growing demand for portable image acquisition devices. However, existing standalone cameras suffer from drawbacks such as large size and short battery life. By analyzing the structural characteristics of the headphone charging case, they discovered that its internal space can accommodate a miniature camera module, and its built-in power supply can provide stable power for additional functions. Based on this, they proposed integrating the image acquisition module 106 and the wireless communication module 204 into the charging case housing 101, utilizing the inherent structure of the charging case to achieve concealed installation and convenient access to the camera function.

[0022] Therefore, refer to Figures 1-16 This application proposes an earphone charging case with camera function, characterized in that it includes: The housing 101 includes a cover 102 and a base 107 that are rotatably connected; An image acquisition module 106 is fixedly mounted on the cover 102 and / or the base 107; A circuit board 119 is disposed within the housing 101. The circuit board 119 includes a main control module 203, a wireless communication module 204, and a power supply module 205. The power supply module 205 is used to supply power to the image acquisition module 106, the main control module 203, and the wireless communication module 204. The image acquisition module 106 is connected to the main control module 203. The main control module 203 is used to acquire image data output by the image acquisition module 106 and generate control signals. The wireless communication module 204 is electrically connected to the main control module 203 and is used to send the image data to an external device.

[0023] Specifically, when the user opens the charging case cover 102, the image acquisition module 106 captures the image, the main control module 203 performs format conversion and compression processing on the original image, and then sends the data packet to the paired device through the wireless communication module 204; the power module 205 provides isolated power supply to each functional module through a multi-stage voltage regulator circuit to avoid high-frequency signal interference causing image noise.

[0024] Compared to existing technologies, traditional charging cases only have unidirectional data transmission capabilities and cannot actively acquire environmental information. This embodiment, through structural reuse and functional integration, adds image acquisition and wireless transmission capabilities while maintaining the original charging and storage capacity, transforming the earphone charging case into a terminal with environmental awareness capabilities, thus resolving the contradiction between portability and expandability in single-function devices.

[0025] Through the above technical solution, this embodiment enables users to complete rapid shooting and data transmission without carrying additional equipment, effectively supporting application needs in scenarios such as sports recording and temporary monitoring.

[0026] Furthermore, the image acquisition module 106 includes an image acquisition unit, a power filtering unit 201, and a control unit 202; the image acquisition unit is connected to the control unit 202 and is used to acquire external image signals; the power filtering unit 201 is connected to the power module 205 and is used to filter the power module 205; the control unit 202 is connected to the main control module 203 and is used to convert the external image signals into digital signals and send them to the main control module 203.

[0027] The image acquisition unit is a device used to acquire optical information and convert it into electrical signals. It can be implemented using a CMOS sensor or a CCD sensor. Its function is to capture visible light information in the environment and generate raw image electrical signals. The power supply filtering unit 201 is a circuit structure used to suppress power supply noise. Its function is to eliminate the interference caused by voltage fluctuations output by the power supply module 205 to the image acquisition unit and the control unit 202. The control unit 202 is an integrated circuit used to coordinate the signal interaction between the image acquisition unit and the main control module 203. It can be implemented using an FPGA or a dedicated image processing chip. Its function is to convert analog image signals into digital signal format and transmit them to the main control module 203 according to a preset protocol.

[0028] It should be noted that the reference Figure 2The control unit 202 includes a GC6813-CSP image processing chip. The GC6813-CSP chip comprises three independent power supply domains: analog power supply AVDD, input / output power supply IOVDD, and digital logic power supply DVDD, corresponding to 2.8V, 1.8V, and 1.2V voltage sources, respectively. Each domain is configured with a multi-stage parallel capacitor to form a filtering circuit. The circuit structure of the control unit 202 is a conventional industry solution, and its power supply, capacitor filtering, clock, and communication design methods are well known to those skilled in the art. Therefore, this embodiment can be implemented based on the specification and accompanying drawings without any creative effort.

[0029] In practical implementation, the image acquisition unit receives external light through an optical lens and generates an analog electrical signal. This signal is transmitted to the control unit 202 for analog-to-digital conversion. The power supply filtering unit 201 uses a multi-stage filtering circuit to independently filter different voltages output by the power supply module 205. For example, corresponding filtering paths are configured for the analog power required by the image acquisition unit and the digital power required by the control unit 202, thereby reducing the impact of high-frequency noise on signal integrity. After completing the signal conversion, the control unit 202 sends the digital image data to the main control module 203 via the I2C or SPI interface 118. The main control module 203 further uploads the data to external devices via the wireless communication module 204.

[0030] Compared with existing technologies, traditional headphone charging cases do not integrate image acquisition functions and cannot achieve real-time acquisition of environmental image information. Even if there are devices with camera functions, their power systems are usually not optimized for the sensitive characteristics of the image acquisition module 106, making the image signal susceptible to power noise interference. This solution uses a separately set power filtering unit 201 to design independent filtering circuits for different voltage domains, effectively isolating the interference path between the power module 205 and the image acquisition module 106. At the same time, the control unit 202 standardizes the signal format to ensure the stability of image data during wireless transmission.

[0031] Through the above technical solution, this embodiment achieves the integration of image acquisition function inside the earphone charging case while ensuring the anti-interference capability of the image signal processing link. Through the synergistic effect of the power filtering unit 201 and the control unit 202, the power noise coupling problem caused by the coexistence of multiple modules in a compact space is solved, enabling the image acquisition module 106 to work stably under low voltage and small size conditions, thereby expanding the application potential of the earphone charging case in scenarios such as portable shooting and environmental monitoring.

[0032] Furthermore, the power filtering unit 201 includes an AVDD filtering circuit, an IOVDD filtering circuit, and a DVDD filtering circuit. The AVDD filtering circuit includes a resistor R1, a capacitor C1, a capacitor C2, and a capacitor C3. One end of the resistor R1 is connected to the 2.8V power input terminal, and the other end is connected to the AVDD node. The capacitors C1, C2, and C3 are connected in parallel between AVDD and analog ground AGND. The IOVDD filtering circuit includes a resistor R2, a capacitor C4, a capacitor C5, and a capacitor C6. One end of the resistor R2 is connected to the 1.8V power input terminal, and the other end is connected to the IOVDD node. The VDD node, with capacitors C4, C5, and C6 connected in parallel between IOVDD and digital ground DGND, is used to filter the power supply of input / output interface 118; the DVDD filtering circuit includes resistor R3 and capacitors C7, C8, C9, C10, C11, and C12. One end of resistor R3 is connected to the 1.2V power input terminal, and the other end is connected to the DVDD node. Capacitors C7, C8, C9, C10, C11, and C12 are connected in parallel between DVDD and DGND.

[0033] Among them, the AVDD filter circuit refers to the circuit that provides filtering function for the analog power supply of the image acquisition module 106. Specifically, it can be implemented by combining resistors and multi-stage parallel capacitors. The resistors are used to divide the voltage and limit the current, and the capacitors are used to filter out power supply noise of different frequency bands. The IOVDD filter circuit refers to the circuit that filters the power supply of the input / output interface 118. Specifically, it can be implemented by a parallel structure of resistors and multiple capacitors. The resistors are used to regulate the voltage, and the capacitors are used to suppress high-frequency interference. The DVDD filter circuit refers to the filter circuit designed for the power supply of digital circuits. Specifically, it can be implemented by a parallel connection of resistors and multiple capacitors. The resistors are used to stabilize the voltage, and the capacitors are used to absorb transient current fluctuations.

[0034] In practical implementation, in the AVDD filter circuit, the 2.8V power input is connected to the AVDD node after voltage division by resistor R1. Multiple capacitors connected in parallel cover different capacitance ranges. For example, C1 is 0.1μF, C2 is 1μF, and C3 is 10μF, which can filter out high-frequency, mid-frequency, and low-frequency noise respectively. In the IOVDD filter circuit, the 1.8V power input voltage is adjusted by resistor R2, and multiple capacitors connected in parallel, such as C4 is 0.01μF, C5 is 0.1μF, and C6 is 1μF, perform multi-band filtering on the power supply of input / output interface 118. In the DVDD filter circuit, the 1.2V power input current is limited by resistor R3, and six sets of parallel capacitors, such as C7 to C12, with capacitance values ​​distributed in the range of 0.01μF to 10μF, form a wideband filter network.

[0035] Further, refer to Figures 4-5 The power module 205 includes a power supply protection unit 206 and a step-down unit 207. The power supply protection unit 206 is a circuit module used to prevent overvoltage, overcurrent or short circuit of the input power supply. Specifically, it can be implemented using a fuse, transient voltage suppression diode or overvoltage protection chip. Its function is to avoid damage to the internal circuit caused by abnormal power conditions. The step-down unit 207 is a circuit structure that converts the high voltage input from the outside into a low voltage suitable for the operation of the internal electronic components. Specifically, it can be implemented using a DC-DC step-down converter or a low dropout linear regulator. Its function is to provide a stable and suitable voltage for low-power devices such as the image acquisition module 106 and the main control module 203.

[0036] It should be noted that the reference Figure 4 The step-down unit 207 can be a low-dropout regulator of model TMI3101D, which is used to stably convert the voltage output by the battery pack 112 into the working voltage required by the core circuits such as the image acquisition module and the main control chip. This embodiment has a compact structure and stable operation, and can provide a low-noise power supply environment for the image acquisition module 106. It belongs to the conventional LDO application method in this field. People skilled in the art can complete the circuit design and implementation without creative labor based on the description and drawings.

[0037] It should be noted that the reference Figure 5 This embodiment features stable power supply and load protection, and is a conventional power protection solution in the field. Those skilled in the art can implement this power protection circuit based on the specification and drawings without any creative effort.

[0038] In practical implementation, the power supply protection unit 206 monitors and limits the current and voltage of the external power supply connected to the charging box in real time through the protection element connected in series in the power input path. When the voltage or current exceeds the set threshold, the abnormal power supply path is cut off. The step-down unit 207 receives the protected input power and converts it into multiple DC power of different voltage levels through switching regulation or linear regulation. For example, it converts the 5V input power into 2.8V, 1.8V and 1.2V supply voltages, which are respectively supplied to the image acquisition module 106, the main control module 203 and the wireless communication module 204. Through two-stage power processing, the influence of external power fluctuations on internal sensitive circuits is avoided, and the independent power supply needs of multiple modules are met.

[0039] This application further proposes an earphone charging case with camera function, including a housing 101. The housing 101 includes a cover 102 and a base 107 that are rotatably connected. The cover 102 includes an upper cover 103 and a lower cover 104. The base 107 includes a base shell 108 and a base 109. The upper cover 103 and the lower cover 104 form a space for accommodating an image acquisition module 106. The base shell 108 and the base 109 form a cavity for accommodating a circuit board 119 and a battery 112. The lower cover 104 and the base shell 108 form a storage cavity 110 for accommodating an earphone 115.

[0040] The upper cover 103 refers to the closable component covering the bottom cover 104, which can be manufactured using injection molding. It works with the bottom cover 104 to form a closed space to protect the image acquisition module 106. The bottom cover 104 refers to the support structure located below the upper cover 103, which can be formed by stamping metal sheet. It supports the image acquisition module 106 and connects to the base 107. The base shell 108 refers to the shell 101 component wrapped around the bottom cover 109, which can be injection molded from engineering plastic. It works with the bottom cover 109 to form the mounting cavity for the circuit board 119. The bottom cover 109 refers to the support component located at the bottom of the base shell 108, which can be die-cast from aluminum alloy. It is used to fix the circuit board 119 and the battery 112 module. The storage cavity 110 refers to the cavity area formed by the bottom cover 104 and the base shell 108. It can be integrally formed by injection molding. It is used to place the earphone 115 and enable the charging contacts 111 to make contact. The top cover 103 and the bottom cover 104 are connected by a snap-fit ​​structure to form an independent space. The camera module and its mounting bracket are installed in this space to prevent the camera from being squeezed by the outside. The base shell 108 and the base 109 are fixed by screws to form a sealed cavity. The main control circuit board 119 and the lithium battery 112 are arranged in the cavity. The circuit board 119 is connected to the camera module through a flexible ribbon cable. The edge of the bottom cover 104 extends downward to form a U-shaped groove structure. The top of the base shell 108 is provided with a corresponding flange structure. After the two are snapped together, a storage cavity 110 is formed. An elastic silicone pad is provided on the inner wall of the cavity to fix the position of the earphone 115.

[0041] Furthermore, a first magnetic element 105 is provided between the upper cover 103 and the bottom cover 104, and a second magnetic element 113, a third magnetic element 116, and a fourth magnetic element 117 are provided between the base cover and the base 109. The first magnetic element 105 and the third magnetic element 116 are used to realize the magnetic connection between the cover 102 and the base 107, and the second magnetic element 113 and the fourth magnetic element 117 are used to realize the magnetic connection between the earphone 115 and the base 107. The first magnetic element 105 refers to the magnetic element disposed between the upper cover 103 and the bottom cover 104, which can be implemented using a neodymium iron boron magnet or a ferrite magnet. It forms a closed magnetic circuit with the third magnetic element 116 to maintain the stable closed state of the cover 102 and the base 107. The third magnetic element 116 refers to the magnetic element disposed between the base shell 108 and the base 109, which corresponds to the position of the first magnetic element 105. It achieves automatic adsorption of the cover 102 and the base 107 through magnetic attraction. Similarly, the second magnetic element 113 and the fourth magnetic element 117 are respectively disposed on both sides of the base shell 108, which can be implemented using a ring magnet or a sheet magnet. They are integrated with the magnetic element built into the earphone 115. In conjunction with the magnetic attraction, the earphone 115 is fixed in the storage cavity 110 to prevent the earphone 115 from falling off due to external force. When the cover 102 and the base 107 are closed, the first magnetic element 105 and the third magnetic element 116 attract each other through magnetic attraction, so that the cover 102 and the base 107 fit tightly together, avoiding accidental opening due to vibration or collision. After the earphone 115 is placed in the storage cavity 110, the second magnetic element 113 and the fourth magnetic element 117 generate magnetic attraction with the magnetic elements inside the left and right earphones 115 respectively, ensuring that the earphone 115 is stable in the storage cavity 110, while reducing the risk of contact misalignment between the charging contacts 111 of the earphone 115 and the charging contacts 111 of the storage cavity 110. The distribution of the magnetic components has been optimized. For example, the first magnetic component 105 can be set near the rotation axis of the cover 102, the third magnetic component 116 is distributed on the edge of the base 107, and the second magnetic component 113 and the fourth magnetic component 117 are symmetrically distributed on both sides of the storage cavity 110, thereby realizing multiple magnetic attraction and fixation functions in a limited space.

[0042] Furthermore, the storage cavity 110 is provided with charging contacts 111 that contact the earphone 115. The charging contacts 111 are electrically connected to the circuit board 119 for charging the earphone 115. The charging contacts 111 are conductive components that make physical contact with the charging interface 118 of the earphone 115. Specifically, they can be implemented using an elastic metal sheet or spring pin structure. Elastic deformation compensates for assembly tolerances, ensuring reliable contact between the contacts and the charging interface 118 when the earphone 115 is placed. When the earphone 115 is placed in the storage cavity 110, the charging contacts 111 make contact with the charging interface 118 of the earphone 115's outer shell. The circuit board 119 supplies power to the built-in battery 112 of the earphone 115 through the contacts. The charging contacts 111 are arranged at predetermined positions on the bottom or side wall of the storage cavity 110, and their spatial arrangement corresponds to the geometry of the charging interface 118 of the earphone 115, allowing the earphone 115 to automatically complete charging alignment in the stored state. The main control module 203 determines whether the earphone 115 is in a charging state by detecting the change in current at the contact point, and controls the power module 205 to output the appropriate voltage.

[0043] Furthermore, the housing 101 is provided with an interface 118 and an LED light 120. The interface 118 is used for power input connection, and the LED light 120 is used to indicate the working status of the charging case and / or the earphones 115. The interface 118 refers to the physical connection port for external power input, which can be implemented using a USB-C interface 118 or a Lightning interface 118. Its function is to provide power input to the power module 205 inside the charging case to ensure the stable operation of the image acquisition module 106 and the wireless communication module 204. The LED light 120 refers to the light-emitting diode status indicator, which can be implemented using multi-color LEDs 120 beads. Its function is to reflect the charging status of the charging case, the remaining power, and the connection status of the earphones 115 through different colors or flashing patterns, so that users can intuitively obtain device operating information.

[0044] In specific implementation, interface 118 is located on the side or bottom of housing 101 and connected to internal power module 205 via wires. When external power is connected, electrical energy is transmitted to power module 205 through interface 118 for conversion and distribution. LED light 120 is arranged in the visible area of ​​housing 101, such as near interface 118 or the edge of cover 102. Its driving circuit is connected to main control module 203. Main control module 203 generates control signals based on the battery level of charging case 112, the charging status of earphone 115, or the wireless communication connection status, driving LED light 120 to display the corresponding color or flashing frequency. For example, when earphone 115 is charging, LED light 120 can display solid red, switching to solid green when fully charged; when charging case battery is low, LED light 120 can flash yellow.

[0045] Furthermore, the headphone charging case with camera function also includes a button module 208, a display module 209, an audio input module 210, an audio filtering module 211, an anti-static module 212, and a temperature sensing module 213. The button module 208 is electrically connected to the main control module 203. The display module 209 is disposed on the surface of the housing 101 and connected to the main control module 203. The audio input module 210 is used to collect ambient audio signals. The audio filtering module 211 is connected between the audio input module 210 and the main control module 203 to filter the collected audio signals. The anti-static module 212 is disposed at the input end of the image acquisition module 106 to prevent electrostatic interference or impact. The temperature sensing module 213 is used to detect temperature.

[0046] Among them, the button module 208 refers to the user input control unit 202, which can be implemented using physical buttons or capacitive touch sensors, and is used to trigger image acquisition or switch working modes; the display module 209 refers to the information visualization unit, which can be implemented using an OLED screen or e-ink screen, and is used to display charging status, shooting parameters or device operating status in real time; the audio input module 210 refers to the acoustic signal capture unit, which can be implemented using a MEMS microphone array, and is used to synchronously collect ambient sound to enhance the audio recording capability of the shooting scene; the audio filtering module 211 refers to the signal conditioning unit, which can be implemented using a bandpass filter or digital signal processor, and is used to eliminate high-frequency noise or low-frequency interference to improve voice clarity; the anti-static module 212 refers to the electrostatic protection unit, which can be implemented using a TVS diode or ESD protection chip, and is used to suppress transient voltage surges caused by electrostatic discharge to the image sensor; the temperature sensing module 213 refers to the temperature monitoring unit, which can be implemented using an NTC thermistor or infrared temperature sensor, and is used to monitor the internal temperature of the charging case in real time to prevent overheating risks.

[0047] It should be noted that, Figures 6-11 Typical circuit structures of the above modules in this embodiment are given respectively. Figure 6 This is the circuit diagram for the audio input module 210. Figure 7 This is a circuit diagram of the main control module 203. Figure 8 This is the circuit diagram of the audio filtering module 211. Figure 9 This is the circuit diagram of the wireless communication module 204. Figure 10 This is a circuit diagram of the display module 209 and the button module 208. Figure 11 The circuit diagrams for the anti-static module 212 and the temperature sensing module 213 are provided. The circuits are composed of commonly available components, with clear connection methods and compact layout. They can realize the functions of each module and can be implemented by those skilled in the art without creative effort based on the contents of this specification and the accompanying drawings.

[0048] In use, when the user activates the shooting function via button module 208, main control module 203 simultaneously activates image acquisition module 106 and audio input module 210. The acquired image data and filtered audio signal are transmitted to external devices via wireless communication module 204. Display module 209 provides real-time feedback on shooting parameters, such as resolution or remaining storage space. Anti-static module 212 forms an electrostatic discharge path at the power input terminal of image acquisition module 106, for example, by directing electrostatic energy to the ground terminal through transient voltage suppressor. Temperature sensing module 213 continuously monitors the temperature of the circuit board 119 area. When the detected temperature exceeds the threshold, main control module 203 can automatically reduce the processing frequency or cut off the power supply to ensure equipment safety.

[0049] In some specific embodiments, the audio filtering module 211 can be configured as a multi-stage RC filter circuit, for example, using a low-pass filter with a cutoff frequency of 4kHz to filter out high-frequency noise in the environment. The anti-static module 212 can be integrated near the FPC connector of the image acquisition module 106, for example, by connecting a bidirectional TVS diode array in parallel between the signal line and the ground line. The temperature sensing module 213 can be arranged in the heat dissipation area between the battery 112 and the main control chip, for example, using a surface-mount thermistor and feeding the temperature data back to the main control module 203 via an ADC circuit.

[0050] Furthermore, it also includes an elastic element 114, one end of which is fixedly connected to the cover 102, and the other end is fixedly connected to the seat 107 in an elastically telescopic state, which is used to provide a buffer positioning function when the earphone 115 is placed in the storage cavity 110. The elastic element 114 can be a silicone pad, a spring washer, or a foam structure. Its flexible deformation can absorb local impact force when the earphone 115 is inserted, avoid hard collision between the earphone 115 and the housing 101, improve the fit and stability of the earphone 115 in the cavity, and at the same time improve the contact reliability between the charging contact 111 and the earphone 115 port.

[0051] Further, refer to Figures 12-13 It also includes a button 121, which is disposed on the surface of the housing 101, preferably located in the outer area of ​​the cover 102 or the base 107, and is electrically connected to the button module 208 on the circuit board 119. The button 121 is used for users to trigger functions such as image acquisition, wireless connection, recording start, and status switching. The button 121 is a mechanical press-type structure or a capacitive touch button 121, which can work with the LED light 120 to provide operation feedback. Its press signal is recognized by the main control module 203 and starts the corresponding module's workflow. The button 121 and the LED light 120 can be set up as a whole.

[0052] Furthermore, it also includes a battery 112, which is a rechargeable lithium battery. The battery 112 is disposed within the cavity formed by the housing 108 and the base 109, and is electrically connected to the power module 205 to provide continuous power to the image acquisition module 106, the wireless communication module 204, the main control module 203, and the headphone 115 charging module. The battery 112 is preferably a pouch lithium battery or a polymer battery to adapt to the internal structure layout of the headphone charging case and improve energy density and usage time.

[0053] This application further proposes a component including an earphone charging case with camera function and left and right earphones 115. The left and right earphones 115 are respectively configured to be inserted into the user's ears to play audio. The left and right earphones 115 refer to a pair of audio output devices, which can be implemented by miniature dynamic units or balanced armature drivers. The ear canal fitting structure ensures that the audio signal is directly transmitted to the eardrum. Inserting into the user's ears refers to a physical adaptation method in the form of earplugs or ear hooks, which can be implemented by silicone ear tips or elastic ear supports to maintain wearing stability and reduce environmental noise interference.

[0054] This embodiment enables real-time acquisition of environmental images and audio interaction in portable devices. For example, in a video call scenario, the charging box captures the image in front of the user and transmits the call voice through the earphone 115, or in a motion recording scenario, it simultaneously captures the motion trajectory and records voice notes, thereby improving the comprehensive application capability of the component in intelligent interaction scenarios.

[0055] Furthermore, in some embodiments, the earphone charging case can be used with a voice recognition algorithm to control the start and stop of the image acquisition module 106 and the audio input module 210 via voice commands, thereby achieving synchronous acquisition and wireless transmission of images and audio. In this technical solution, the voice triggering function can be considered as an extension option of the control method. It mainly relies on software processing to complete command parsing and response control. The processing flow does not involve substantial changes in hardware structure or circuit connections, and therefore is not considered as the core content protected by this utility model, but is only used to illustrate possible application extensions.

[0056] Furthermore, to enhance the visual prompting capability during use, the main control module 203 can control the LED light 120 on the outside of the housing 101 to be lit during the operation of the image acquisition module 106, thereby prompting the user and surrounding personnel that the device is currently in image acquisition mode. This status indication function helps avoid misoperation or cognitive bias in specific scenarios. This prompting function is achievable with existing technology, and its setting does not affect the original storage and charging functions of the earphone charging case.

[0057] It is understood that the specific embodiments of this utility model involve functional modules such as image acquisition, audio acquisition, and wireless transmission. In actual product use, there may be acquisition, processing, and transmission of image or sound data. Therefore, if the embodiments of this utility model are applied to specific products or technologies, the acquisition, use, and processing of related image and audio data should be carried out with the explicit permission or informed consent of the user, and must strictly comply with the privacy protection laws, regulations, and industry standards of applicable countries and regions. The applicant expressly declares that the technical solution of this utility model is only used to enhance the user's recording and interaction capabilities under legal premises, and any improper use that violates laws and regulations is not within the protection scope of this utility model.

[0058] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. An earphone charging box with a camera function, characterized in that, include: The housing includes a cover and a base that are rotatably connected; An image acquisition module is fixedly mounted on the cover and / or the base; A circuit board is disposed within the housing. The circuit board includes a main control module, a wireless communication module, and a power supply module. The power supply module is used to supply power to the image acquisition module, the main control module, and the wireless communication module. The image acquisition module is connected to the main control module. The main control module is used to acquire image data output by the image acquisition module and generate control signals. The wireless communication module is electrically connected to the main control module and is used to send the image data to an external device. The image acquisition module includes an image acquisition unit, a power filtering unit, and a control unit; The image acquisition unit is connected to the control unit and is used to acquire external image signals; The power filtering unit is connected to the power module and is used to filter the power module. The control unit is connected to the main control module and is used to convert the external image signal into a digital signal and send it to the main control module. The power filtering unit includes an AVDD filtering circuit, an IOVDD filtering circuit, and a DVDD filtering circuit. The AVDD filtering circuit includes a resistor R1, a capacitor C1, a capacitor C2, and a capacitor C3. One end of the resistor R1 is connected to the 2.8V power input terminal, and the other end is connected to the AVDD node. The capacitors C1, C2, and C3 are connected in parallel between AVDD and analog ground AGND. The IOVDD filter circuit includes resistor R2, capacitor C4, capacitor C5, and capacitor C6. One end of resistor R2 is connected to the 1.8V power input terminal, and the other end is connected to the IOVDD node. Capacitors C4, C5, and C6 are connected in parallel between IOVDD and digital ground DGND to filter the power supply of the input and output interfaces. The DVDD filtering circuit includes a resistor R3 and capacitors C7, C8, C9, C10, C11, and C12. One end of the resistor R3 is connected to the 1.2V power input terminal, and the other end is connected to the DVDD node. The capacitors C7, C8, C9, C10, C11, and C12 are connected in parallel between the DVDD and DGND.

2. The headphone charging case with camera function according to claim 1, characterized in that, The power module includes a power supply protection unit and a step-down unit. The power supply protection unit is used to protect the input power supply, and the step-down unit is used to convert the input power supply into a power supply voltage.

3. The earphone charging case with camera function according to claim 1, characterized in that, The cover includes an upper cover and a lower cover, and the base includes a base shell and a base. The upper cover and the lower cover form a space for accommodating the image acquisition module, the base shell and the base form a cavity for accommodating the circuit board and the battery, and the lower cover and the base shell form a storage cavity for accommodating the earphone.

4. The headphone charging case with camera function according to claim 3, characterized in that, A first magnetic element is provided between the top cover and the bottom cover, and a second, a third, and a fourth magnetic element are provided between the base shell and the base. The first and third magnetic elements are used to achieve a magnetic connection between the cover and the base, and the second and fourth magnetic elements are used to achieve a magnetic connection between the earphone and the base.

5. The earphone charging case with camera function according to claim 3, characterized in that, The storage cavity is provided with charging contacts that come into contact with the earphones. The charging contacts are electrically connected to the circuit board for charging the earphones.

6. The earphone charging case with camera function according to claim 1, characterized in that, The housing is equipped with an interface and an LED light. The interface is used for power input connection, and the LED light is used to indicate the working status of the charging case and / or earphones.

7. The earphone charging case with camera function according to claim 1, characterized in that, It also includes a button module, a display module, an audio input module, an audio filtering module, an anti-static module, and a temperature sensing module. The button module is electrically connected to the main control module. The display module is disposed on the surface of the housing and connected to the main control module. The audio input module is used to collect ambient audio signals. The audio filtering module is connected between the audio input module and the main control module and is used to filter the collected audio signals. The anti-static module is disposed at the input end of the image acquisition module and is used to prevent electrostatic interference or impact. The temperature sensing module is used to detect temperature.

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