Recording device with wireless charging power bank

Abstract

The utility model relates to recording equipment technical field, concretely relates to a recording equipment with wireless charging mobile power supply. The recording equipment with wireless charging mobile power supply includes: the shell, and the power module, wireless charging module, bone conduction microphone and digital microphone of setting in the shell, wireless charging module and bone conduction microphone are located the same side in the thickness direction of power module, and digital microphone is located the length direction of power module one side, and the power module is used to provide electric energy for wireless charging module, bone conduction microphone and digital microphone. Adopt above -mentioned form, can promote the applicability when using.

Description

Technical Field

[0001] This utility model relates to the field of recording equipment technology, and in particular to a recording device with a wireless charging power bank. Background Technology

[0002] With the development of artificial intelligence and speech recognition technology, more and more electronic products based on speech processing technology have become popular. Voice recorders, as one such electronic product capable of recording audio, are widely used in work and daily life. Voice recorders typically contain microphones, circuit boards, and other components to enable them to record audio, and they are now widely used in work and study.

[0003] Currently available voice recorders have limited functionality. Most products on the market can only record audio information but do not have other functions. Furthermore, due to their design limitations, they are powered by small batteries, resulting in short continuous working time and requiring frequent recharging, which hinders their usability. Utility Model Content

[0004] This utility model provides a recording device with a wireless charging power bank, which improves its usability.

[0005] This utility model discloses a recording device with a wireless charging power bank, comprising: a housing, and a power module, a wireless charging module, a bone conduction microphone, and a digital microphone disposed within the housing; the wireless charging module and the bone conduction microphone are located on the same side in the thickness direction of the power module, the digital microphone is located on one side in the length direction of the power module, and the power module is used to provide power to the wireless charging module, the bone conduction microphone, and the digital microphone.

[0006] Optionally, the housing includes a shell and a top cover that snaps onto the shell. The top cover has a groove, the bone conduction microphone is located in the groove, the digital microphone is spaced two apart, and the upper surface of the shell has two recording holes spaced apart, with each of the two recording holes corresponding to one of the two digital microphones.

[0007] Optionally, the housing also includes a recording circuit board and a control circuit board, which are located at opposite ends of the power module along its length and are electrically connected to the control circuit board. The digital microphone is mounted on the recording circuit board, and the bone conduction microphone is electrically connected to the recording circuit board via a flexible circuit board. The control circuit board has a mode switch for switching the operating states of the digital microphone and the bone conduction microphone.

[0008] Optionally, the wireless charging module includes a coil base disposed between the power module and the top cover, and a wireless charging coil disposed on the coil base, the wireless charging coil being electrically connected to the control circuit board; the outer ring of the wireless charging coil is also provided with a magnetic suction module, and the bone conduction microphone is disposed on the coil base and located at the edge corner near the recording circuit board.

[0009] Optionally, a plurality of limiting protrusions are formed on the coil base, and a limiting space is formed between the plurality of limiting protrusions. A support seat is provided in the limiting space, one side of the flexible circuit board is attached to the support seat, and the other side of the flexible circuit board is connected to the bone conduction microphone. The support seat is made of a flexible material.

[0010] Optionally, the recording circuit board is parallel to the upper surface, and the recording circuit board is provided with a sound guide hole corresponding to the recording hole. A sound guide component is also provided between the recording circuit board and the upper surface, and a dustproof film is provided between the sound guide component and the upper surface. The sound guide component is provided with a through hole, and the through hole connects the recording hole and the sound guide hole. The sound guide component and the digital microphone are located on opposite sides of the recording circuit board, and the digital microphone corresponds to the sound guide hole.

[0011] Optionally, the control circuit board includes a first circuit board and a second circuit board that are electrically connected. The first circuit board and the second circuit board are respectively arranged parallel to the top cover. The wireless charging coil is electrically connected to the first circuit board, and the power module and the recording circuit board are electrically connected to the second circuit board. The mode switch is connected to the second circuit board. The second circuit board is also provided with a power switch and a charging interface. The mode switch, the power switch and the charging interface are located in the gap between the first circuit board and the second circuit board and are exposed from the lower end face of the housing.

[0012] Optionally, the recording circuit board is further provided with an integrated chip and at least one antenna. The integrated chip includes a recording module and a communication module. The recording module is used to acquire audio information through the bone conduction microphone or the digital microphone, and the communication module is used to achieve communication through the antenna.

[0013] Optionally, the antenna is configured as two, one of which is a WiFi antenna and the other is a Bluetooth antenna. The communication module includes a Bluetooth module and a WiFi module. The Bluetooth module is electrically connected to the Bluetooth antenna, and the WiFi module is electrically connected to the WiFi antenna.

[0014] Optionally, the WiFi antenna and the Bluetooth antenna are distributed on opposite sides of the recording circuit board, and the distance between the orthographic projections of the WiFi antenna and the Bluetooth antenna on the recording circuit board is greater than or equal to 30mm.

[0015] The beneficial effects of the recording device with wireless charging power bank provided by this utility model embodiment are as follows: The power module provides the recording device with a longer continuous working time, reducing the inconvenience of frequent charging for users, improving its applicability, and meeting users' needs for extended battery life during long meetings, interviews, and other scenarios. It can also function as a power bank to charge electronic devices. Simultaneously, the wireless charging module and bone conduction microphone are located on the same side of the power module's thickness direction, while the digital microphone is on one side of the power module's length direction. This optimizes the utilization of the internal space and ensures that the wireless charging module and bone conduction microphone are closer to the electronic devices during use, guaranteeing the reliability of their respective functions. Furthermore, by integrating the wireless charging module, in addition to basic recording functions, it also has wireless charging capabilities. When other wirelessly charging-enabled devices (such as mobile phones, headphones, etc.) are low on power, this recording device with wireless charging power bank can act as a wireless charger to replenish their power, broadening its application scenarios and greatly enhancing its practicality and multi-functionality. Attached Figure Description

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is one of the structural schematic diagrams of a recording device with a wireless charging power bank provided in this embodiment of the present invention; Figure 2 This is an exploded view of a recording device with a wireless charging power bank provided in an embodiment of this utility model. Figure 3 This is one of the structural schematic diagrams of the recording circuit board provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the top cover provided in an embodiment of the present utility model; Figure 5 This is a second structural schematic diagram of the recording device with wireless charging power bank provided in this embodiment of the present invention; Figure 6 This is a schematic diagram showing the relative positions of the power supply module, recording circuit board, and control circuit board provided in this embodiment of the utility model. Figure 7 yes Figure 6 A magnified view of a section at point A in the middle; Figure 8 This is the second schematic diagram of the recording circuit board provided in this embodiment of the utility model.

[0017] The labels for the attached figures are as follows: 100. Recording device with wireless charging power bank; 110. Outer shell; 112. Housing; 1122. Upper end face; 1122a. Recording hole; 1124. Lower end face; 114. Top cover; 1142. Recess; 120. Power module; 130. Wireless charging module; 132. Coil base; 1322. Limiting protrusion; 1324. Support base; 134. Wireless charging coil; 140. Recording circuit board; 141. Bone conduction microphone 142. Digital microphone; 143. Flexible circuit board; 144. Sound guide hole; 145. Sound guide component; 1452. Via; 146. Dustproof membrane; 147. Integrated chip; 148. Antenna; 149. Memory chip; 150. Control circuit board; 151. First circuit board; 152. Second circuit board; 153. Mode switch; 154. Power switch; 155. Charging interface; 160. Magnetic module; 170. Display screen. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model embodiment provides a recording device 100 with a wireless charging power bank, including: a housing 110, and a power module 120, a wireless charging module 130, a bone conduction microphone 141, and a digital microphone 142 disposed within the housing 110; the wireless charging module 130 and the bone conduction microphone 141 are located on the same side in the thickness direction of the power module 120, and the digital microphone 142 is located on one side in the length direction of the power module 120, and the power module 120 is used to provide power to the wireless charging module 130, the bone conduction microphone 141, and the digital microphone 142.

[0020] Specifically, the wireless charging module 130 and the bone conduction microphone 141 are located on the same side of the power module 120 along its thickness. This not only saves space in the thickness direction of the recording device 100 with a wireless charging power bank to a certain extent, but also allows the side with the wireless charging module 130 and bone conduction microphone 141 to be aligned with the back of the electronic device when used with mobile phones or other electronic devices. This ensures normal wireless charging and better receives vibrations from the electronic device, reducing interference from ambient noise. Furthermore, the digital microphone 142 is located on one side of the power module 120 along its length, forming a different orientation from the wireless charging module 130 and bone conduction microphone 141. This allows for a more rational allocation of space within the housing 110, effectively controlling the overall size of the device while ensuring the normal operation and functionality of each component.

[0021] The recording device 100 with wireless charging power bank provided in this application embodiment can provide a longer continuous working time for the recording device 100 itself through the power module 120, reducing the inconvenience of frequent charging during use, improving its applicability, and meeting the user's need for long-term recording device battery life in scenarios such as long meetings and interviews. It can also be used as a power bank to charge electronic devices. At the same time, the wireless charging module 130 and the bone conduction microphone 141 are on the same side in the thickness direction of the power module 120, while the digital microphone 142 is on one side in the length direction of the power module 120. This optimizes the utilization of the internal space of the housing 110 and ensures that the wireless charging module 130 and the bone conduction microphone 141 are closer to the electronic devices during use, thereby ensuring the reliability of the corresponding functions. In addition, by integrating the wireless charging module 130, in addition to basic recording functions, it also has wireless charging functionality. When other wireless charging-enabled devices (such as mobile phones, headphones, etc.) are low on power, the recording device 100 with wireless charging power bank can be used as a wireless charger to replenish their power, thus broadening its application scenarios and greatly improving its practicality and versatility.

[0022] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the outer casing 110 includes a housing 112 and a top cover 114 that is fastened to the housing 112. The top cover 114 is provided with a groove 1142, and the bone conduction microphone 141 is located in the groove 1142. The digital microphones 142 are spaced apart. The upper end face 1122 of the housing 112 is provided with two recording holes 1122a spaced apart. The two recording holes 1122a are corresponding to the two digital microphones 142 one by one.

[0023] Specifically, the outer casing 110 adopts a snap-fit ​​design between the casing 112 and the top cover 114, facilitating the assembly and disassembly of the casing 110 and simplifying the installation of internal components and subsequent maintenance during equipment production. In practical applications, a snap-fit ​​structure, such as a latch or slot, can be provided between the casing 112 and the top cover 114 to achieve a snap-fit ​​connection. Furthermore, a recess 1142 is provided on the top cover 114, within which the bone conduction microphone 141 is housed. This not only provides dedicated space for the bone conduction microphone 141 but also creates a thinner area on the top cover 114, allowing the bone conduction microphone 141 to be closer to the electronic device during use, ensuring effective vibration transmission and reliable bone conduction recording. It should also be noted that the digital microphones 142 are spaced apart, and correspondingly, two recording holes 1122a are spaced apart on the upper end face 1122 of the housing 112. Each recording hole 1122a corresponds one-to-one with a digital microphone 142, ensuring that external sound can be accurately transmitted to the digital microphones 142 through the recording holes 1122a, reducing sound loss and interference during transmission, and improving the sound acquisition accuracy of the digital microphones 142. The spaced arrangement of the two digital microphones 142 can also achieve a stereo recording effect, making the recorded sound more spatial and realistic, and improving the recording quality.

[0024] In practical applications, the distance between the two digital microphones 142 should be greater than 45mm. The greater the distance, the better the noise reduction effect of the dual microphones. For example, the distance can be set to 45mm, 48mm, or 50mm. Moreover, setting the two digital microphones 142 alternately can also form a wider sound pickup coverage area, ensuring recording quality.

[0025] like Figure 2 and Figure 3 As shown, the housing 110 also includes a recording circuit board 140 and a control circuit board 150. The recording circuit board 140 and the control circuit board 150 are located at opposite ends of the power module 120 along its length, and the power module 120 and the recording circuit board 140 are electrically connected to the control circuit board 150. A digital microphone 142 is mounted on the recording circuit board 140, and a bone conduction microphone 141 is electrically connected to the recording circuit board 140 via a flexible circuit board 143. A mode switch 153 is mounted on the control circuit board 150 to switch the operating states of the digital microphone 142 and the bone conduction microphone 141.

[0026] Specifically, by placing the recording circuit board 140 and the control circuit board 150 at opposite ends of the power module 120 along its length, electromagnetic interference caused by their close proximity is avoided, ensuring the independence and stability of their operation. Furthermore, the power module 120, connected to the control circuit board 150, transmits power to it, which is then distributed according to the needs of different components, providing stable power support for the entire circuit system. The connection between the recording circuit board 140 and the control circuit board 150 allows the audio signals acquired by the recording circuit board 140 to be transmitted to the control circuit board 150 for processing. Simultaneously, the control circuit board 150 can control the operating status of the recording circuit board 140, achieving coordinated operation of the circuit system. The bone conduction microphone 141 is electrically connected to the recording circuit board 140 via a flexible circuit board 143. The flexible circuit board 143 possesses good flexibility and bendability, better adapting to the installation location requirements of the bone conduction microphone 141 and reducing setup difficulty. By using the mode switch 153 on the control circuit board 150, users can select to enable the digital microphone 142 or the bone conduction microphone 141 for recording, depending on the usage scenario and recording needs. This allows for flexible switching between the two microphone working modes and improves the flexibility of the device.

[0027] like Figure 6 As shown, the wireless charging module 130 includes a coil base 132 disposed between the power module 120 and the top cover 114, and a wireless charging coil 134 disposed on the coil base 132. The wireless charging coil 134 is electrically connected to the control circuit board 150. A magnetic module 160 is also disposed around the outer ring of the wireless charging coil 134. The bone conduction microphone 141 is disposed on the coil base 132 and is located at the edge corner near the recording circuit board 140.

[0028] Specifically, the coil base 132 provides reliable fixed support for the wireless charging coil 134, preventing displacement during use and ensuring that the wireless charging coil 134 is always in the optimal charging position, thereby ensuring the stability and efficiency of wireless charging. Simultaneously, the coil base 132's location between the power module 120 and the top cover 114 fully utilizes the unused space inside the housing 110, reducing the space occupied by the wireless charging module 130 for other components, thus facilitating a miniaturized overall design. In actual use of the wireless charging function, the user simply needs to bring the device to be charged close to the magnetic module 160 of the recording device; the magnetic module 160 will automatically attract the device and precisely position it aligned with the wireless charging coil 134, greatly improving ease of use. The bone conduction microphone 141 is mounted on the coil base 132 and located at the edge corner near the recording circuit board 140. This facilitates the full and rational use of the space inside the housing 110, while also reducing the signal transmission path between the bone conduction microphone 141 and the recording circuit board 140. This reduces interference and loss during signal transmission, ensuring that the audio signal collected by the bone conduction microphone 141 can be transmitted to the recording circuit board 140 for processing more accurately and quickly, thus guaranteeing the stability and recording quality of the bone conduction microphone 141's recording function.

[0029] like Figure 7 As shown, a plurality of limiting protrusions 1322 are formed on the coil base 132, and a limiting space is formed between the plurality of limiting protrusions 1322. A support base 1324 is provided in the limiting space. One side of the flexible circuit board 143 is attached to the support base 1324, and the other side of the flexible circuit board 143 is connected to the bone conduction microphone 141. The support base 1324 is made of flexible material.

[0030] Specifically, the limiting space formed by multiple limiting protrusions 1322 on the coil base 132 provides precise positioning and fixation for the support base 1324. This limiting space restricts the movement range of the support base 1324, facilitating rapid positioning and installation during installation. This ensures the support base 1324 is in the optimal position to support the flexible circuit board 143, laying the foundation for stable operation of the flexible circuit board 143 and the bone conduction microphone 141. Furthermore, the support base 1324 is made of flexible material, which reduces the impact of vibration on the flexible circuit board 143 and the bone conduction microphone 141, lowering the risk of component damage and extending the device's lifespan. Simultaneously, it ensures a stable fit between the bone conduction microphone 141 and the top cover 114, facilitating the effective transmission of vibrations required for bone conduction. This allows the audio signal collected by the bone conduction microphone 141 to be continuously and stably transmitted to the recording circuit board 140, reducing signal interruptions or distortion and ensuring stable recording quality.

[0031] like Figure 2 , Figure 3 and Figure 5 As shown, the recording circuit board 140 is parallel to the upper end face 1122. The recording circuit board 140 is provided with a sound guide hole 144 corresponding to the recording hole 1122a. A sound guide 145 is also provided between the recording circuit board 140 and the upper end face 1122. A dustproof diaphragm 146 is provided between the sound guide 145 and the upper end face 1122. A through hole 1452 is provided on the sound guide 145, which connects the recording hole 1122a and the sound guide hole 144. The sound guide 145 and the digital microphone 142 are located on opposite sides of the recording circuit board 140, and the digital microphone 142 corresponds to the sound guide hole 144.

[0032] Specifically, the recording circuit board 140 is arranged parallel to the upper surface 1122, ensuring that the sound guide hole 144 on the recording circuit board 140 can maintain a good alignment with the recording hole 1122a on the upper surface 1122. This avoids sound transmission path deviation due to angular deviation, allowing sound entering from the recording hole 1122a to be more accurately guided to the sound guide hole 144, reducing sound dispersion in the initial stage of transmission and providing a prerequisite for efficient sound acquisition by the digital microphone 142. The guide component can precisely align the recording hole 1122a and the sound guide hole 144 through the through hole 1452, forming a more enclosed and concentrated sound transmission channel, minimizing sound dispersion and interference during transmission. The dustproof diaphragm 146 mainly serves a dustproof function, preventing external dust and impurities from entering the device through the recording hole 1122a, avoiding dust adhering to the digital microphone 142 or the recording circuit board 140, affecting the recording sensitivity of the digital microphone 142 and the normal operation of the recording circuit board 140. It can also, to a certain extent, prevent small particles from damaging the internal components of the device.

[0033] In practical applications, the aperture of the pickup hole corresponding to the digital microphone 142 is 0.5mm, the aperture of the sound guide hole 144 on the recording circuit board 140 can be set to 0.6mm, and the aperture of the through hole 1452 and the corresponding recording hole 1122a can be set to 0.8mm, so that the entire passage forms a horn-shaped structure to improve the sound pickup effect.

[0034] like Figure 2 and Figure 6As shown, the control circuit board 150 includes a first circuit board 151 and a second circuit board 152 that are electrically connected. The first circuit board 151 and the second circuit board 152 are respectively arranged parallel to the top cover 114. The wireless charging coil 134 is electrically connected to the first circuit board 151. The power module 120 and the recording circuit board 140 are electrically connected to the second circuit board 152. The mode switch 153 is connected to the second circuit board 152. The second circuit board 152 is also provided with a power switch 154 and a charging interface 155. The mode switch 153, the power switch 154 and the charging interface 155 are located in the gap between the first circuit board 151 and the second circuit board 152 and are exposed from the lower end face 1124 of the housing 112.

[0035] Specifically, the control circuit board 150 adopts a split first circuit board 151 and second circuit board 152. Compared with an integrated circuit board, it can more flexibly adapt to the internal space layout of the device. Based on the position of other components inside the housing 110 (such as the power module 120, wireless charging module 130, recording circuit board 140, etc.), the installation positions of the first circuit board 151 and the second circuit board 152 are reasonably arranged, making full use of the internal space of the device and avoiding the installation difficulties or space waste caused by the large size of the integrated circuit board. At the same time, it also facilitates the electrical connection between each component and the control circuit board 150, reduces the length and complexity of the connection lines, reduces interference and loss during signal transmission, and improves the overall working stability of the device. In addition, the first circuit board 151 and the second circuit board 152 are arranged parallel to the top cover 114, which makes the control circuit board 150 more regular in shape. The gap between the first circuit board 151 and the second circuit board 152 can be used to realize the reasonable installation of the mode switch 153, the power switch 154 and the charging interface 155, avoiding the occupation of other valuable space inside the outer casing 110, which is conducive to controlling the overall size. At the same time, it can also ensure good heat dissipation of the first circuit board 151, the second circuit board 152 and the second circuit board 152.

[0036] In an optional embodiment of this application, a display screen 170 is further provided on the housing 112. The display screen 170 is embedded in the side of the housing 110 away from the top cover 114, and the display screen 170 is electrically connected to the first circuit board 151. The display screen 170 can display the working status information of the recording device (such as recording duration, remaining battery power, etc.), so that the user can intuitively understand the current status of the recording device 100 with wireless charging power bank.

[0037] like Figure 3 and Figure 8As shown, the recording circuit board 140 is also provided with an integrated chip 147 and at least one antenna 148. The integrated chip 147 includes a recording module and a communication module. The recording module is used to acquire audio information through a bone conduction microphone 141 or a digital microphone 142, and the communication module is used to achieve communication through the antenna 148.

[0038] Specifically, the recording module can process the audio signals collected by the bone conduction microphone 141 or digital microphone 142, such as amplifying the audio signals to clearly capture weak sound signals; filtering the audio signals to remove noise and interference, improving the clarity and fidelity of the recording. The addition of the communication module and antenna 148 enables communication between the recording device 100 with a wireless charging power bank and external electronic devices. Through the communication module and antenna 148, users can wirelessly transmit recorded audio files to external devices such as mobile phones and computers without the need for data cables, making operation more convenient, especially suitable for scenarios requiring rapid sharing of recording files. For example, after a meeting, users can immediately transfer the meeting recording to a computer for organization and editing. Simultaneously, users can also send commands to the recording device through external devices to remotely control it. For example, when it is inconvenient to operate the recording device directly, commands can be sent via mobile phone to start or stop recording, improving the flexibility and convenience of the device.

[0039] In an optional embodiment of this application, two antennas 148 are provided, one of which is a WiFi antenna 148 and the other is a Bluetooth antenna 148. The communication module includes a Bluetooth module and a WiFi module. The Bluetooth module is electrically connected to the Bluetooth antenna 148, and the WiFi module is electrically connected to the WiFi antenna 148.

[0040] Specifically, in short-range scenarios, such as when users need to connect the recording device to their mobile phone for rapid file transfer or control of the recording device via their phone, Bluetooth communication is more convenient, requiring no network connection and offering fast connection speeds. In scenarios requiring the transfer of large recording files or long-distance communication, such as when users need to transfer long meeting or interview recordings to a computer for editing or upload recordings to cloud storage, WiFi communication offers advantages in high transmission speed and long distance, enabling more efficient data transfer. The complementarity of these two communication methods ensures good communication performance for the device in various usage scenarios. Understandably, the recording device 100 with its wireless charging power bank can also be used directly as a microphone for remote meetings via WiFi communication.

[0041] The WiFi antenna 148 and the Bluetooth antenna 148 are distributed on opposite sides of the recording circuit board 140, and the distance between the orthographic projections of the WiFi antenna 148 and the Bluetooth antenna 148 on the recording circuit board 140 is greater than or equal to 30mm.

[0042] Specifically, the WiFi antenna 148 and the Bluetooth antenna 148 are distributed on opposite sides of the recording circuit board 140, which creates favorable conditions for reducing mutual interference from a spatial layout perspective. The distance between the orthographic projections of the WiFi antenna 148 and the Bluetooth antenna 148 on the recording circuit board 140 is greater than or equal to 30mm, which allows the two antennas 148 to maintain a large distance in physical position, avoiding signal superposition and interference caused by the antennas 148 being too close together.

[0043] Please refer to Figure 8 The recording circuit board 140 also includes a storage chip 149. This storage chip 149 enables the recording device 100 with a wireless charging power bank to have local audio information storage capabilities. It is electrically connected to the integrated chip 147, allowing users to save recordings without relying on external storage devices (such as USB flash drives or external hard drives). In scenarios such as remote conferencing, users can activate the recording function at any time, and the recording will be automatically stored in the storage chip 149, avoiding the problem of recordings being lost due to forgotten, damaged, or faulty external storage devices.

[0044] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A recording device having a wireless charging power bank, characterized by, Includes: a housing, and a power module, a wireless charging module, a bone conduction microphone, and a digital microphone disposed within the housing; The wireless charging module and the bone conduction microphone are located on the same side of the power module in the thickness direction, and the digital microphone is located on one side of the power module in the length direction. The power module is used to provide power to the wireless charging module, the bone conduction microphone and the digital microphone.

2. The recording device with a wireless charging power bank of claim 1, wherein, The outer casing includes a housing and a top cover that snaps into the housing. The top cover has a groove, and the bone conduction microphone is located in the groove. The digital microphones are spaced two apart. The upper surface of the housing has two recording holes spaced apart, and the two recording holes correspond one-to-one with the two digital microphones.

3. The recording device with wireless charging power bank of claim 2, wherein, The housing also includes a recording circuit board and a control circuit board, which are located at opposite ends of the power module along its length and are electrically connected to the control circuit board. The digital microphone is mounted on the recording circuit board, and the bone conduction microphone is electrically connected to the recording circuit board via a flexible circuit board. The control circuit board has a mode switch for switching the operating states of the digital microphone and the bone conduction microphone.

4. The recording device with wireless charging power bank of claim 3, wherein, The wireless charging module includes a coil base disposed between the power module and the top cover, and a wireless charging coil disposed on the coil base. The wireless charging coil is electrically connected to the control circuit board. A magnetic module is also disposed around the outer ring of the wireless charging coil. The bone conduction microphone is disposed on the coil base and located at the edge corner near the recording circuit board.

5. The recording device with wireless charging mobile power supply of claim 4, wherein, Multiple limiting protrusions are formed on the coil base, and a limiting space is formed between the multiple limiting protrusions. A support seat is provided in the limiting space. One side of the flexible circuit board is attached to the support seat, and the other side of the flexible circuit board is connected to the bone conduction microphone. The support seat is made of flexible material.

6. The recording device with wireless charging power bank of any one of claims 3-5, wherein, The recording circuit board is parallel to the upper surface. The recording circuit board is provided with a sound guide hole corresponding to the recording hole. A sound guide component is also provided between the recording circuit board and the upper surface. A dustproof film is provided between the sound guide component and the upper surface. The sound guide component is provided with a through hole that connects the recording hole and the sound guide hole. The sound guide component and the digital microphone are located on opposite sides of the recording circuit board, and the digital microphone corresponds to the sound guide hole.

7. The recording device with a wireless charging power bank according to claim 4 or 5, characterized in that, The control circuit board includes a first circuit board and a second circuit board that are electrically connected. The first circuit board and the second circuit board are respectively arranged parallel to the top cover. The wireless charging coil is electrically connected to the first circuit board. The power module and the recording circuit board are electrically connected to the second circuit board. The mode switch is connected to the second circuit board. The second circuit board is also provided with a power switch and a charging interface. The mode switch, the power switch and the charging interface are located in the gap between the first circuit board and the second circuit board and are exposed from the lower end face of the housing.

8. The recording device with wireless charging power bank of any one of claims 3-5, wherein, The recording circuit board is also provided with an integrated chip and at least one antenna. The integrated chip includes a recording module and a communication module. The recording module is used to acquire audio information through the bone conduction microphone or the digital microphone, and the communication module is used to achieve communication through the antenna.

9. The recording device with a wireless charging power bank of claim 8, wherein, The antenna is configured as two, one of which is a WiFi antenna and the other is a Bluetooth antenna. The communication module includes a Bluetooth module and a WiFi module. The Bluetooth module is electrically connected to the Bluetooth antenna, and the WiFi module is electrically connected to the WiFi antenna. 10.The recording device with a wireless charging power bank of claim 9, wherein, The WiFi antenna and the Bluetooth antenna are distributed on opposite sides of the recording circuit board, and the distance between the orthographic projections of the WiFi antenna and the Bluetooth antenna on the recording circuit board is greater than or equal to 30mm.

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