Feed structure and system suitable for recording pen

By using a detachable power supply structure and a contactless power supply design, the problem of non-replaceable pen tips in voice recorders is solved, achieving convenient replacement and cost reduction.

CN121583300APending Publication Date: 2026-02-27SHENZHEN VIMAI TECH CO LTD
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Patent Information

Application Number
CN202511518603.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-23
Publication Date
2026-02-27

AI Technical Summary

Technical Problem

Existing voice recorders have non-replaceable pen tips, limiting their use cases, and their contact charging structure is complex and costly.

Method used

It adopts a power supply structure in which the pen tip and pen body are detachably connected, and uses a charging coil and magnet to achieve contactless power supply, and switches the working state by detecting the relative position through a sensor.

Benefits of technology

It facilitates the replacement of different pen nibs, reduces manufacturing costs, improves waterproof performance and connection reliability, and enhances user convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The feed structure comprises a pen point and a pen body, the pen point is detachably connected with the pen body, a first connecting part is formed at the end, close to the pen point, of the pen body, a second connecting part is formed at the end, close to the pen body, of the pen point, and the first connecting part is connected with the second connecting part. Charging coils are arranged in the first connecting part and the second connecting part and are used for supplying power to the pen point by the pen body; and a magnet is arranged between the first connecting part and the second connecting part so as to connect the first connecting part and the second connecting part. Non-contact power supply is carried out between the pen point and the pen body through the charging coil, a complex connection structure of contact charging is reduced, the manufacturing cost is reduced, in addition, the pen body and the pen point are connected through the magnet, disassembly is convenient, meanwhile, the connection reliability is improved, a user can replace the pen point conveniently, and the use convenience of the user is improved.
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Description

Technical Field

[0001] This invention relates to the field of voice recorder technology, and more specifically to a power supply structure and system suitable for voice recorders. Background Technology

[0002] Voice recorders are widely used in news interviews, meeting minutes, and speeches due to their small size, portability, and ease of operation. To facilitate operation and improve recording quality, their design goes beyond a simple pen shape; they are portable and offer multiple functions, such as laser pointer functionality, FM radio, and MP3 playback.

[0003] To adapt to different usage scenarios, existing voice recorders often adopt an integrated design for the pen tip and body. This design has a lower manufacturing cost, but because the pen tip cannot be replaced, the usage scenarios are relatively limited, resulting in a narrow market. Therefore, it is necessary to develop voice recorders with interchangeable pen tips. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a power supply structure suitable for voice recorders, thereby solving the problem that the pen tip of a voice recorder cannot be replaced in the prior art.

[0005] To achieve the above technical objectives, the technical solution of the present invention is as follows: A power supply structure suitable for a voice recorder, comprising a pen tip and a pen body, wherein: the pen tip and the pen body are detachably connected, a first connecting portion is formed at one end of the pen body near the pen tip, and a second connecting portion is formed at one end of the pen tip near the pen body; a charging coil is disposed within the first connecting portion and the second connecting portion for supplying power from the pen body to the pen tip; a magnet is disposed between the first connecting portion and the second connecting portion to connect the first connecting portion and the second connecting portion.

[0006] Preferably, the first connecting part has a raised surface forming a mating platform, and the second connecting part is recessed inward to form a mating groove. The mating platform and the mating groove are connected in a mating manner, and the charging coil is respectively disposed at the mating platform and the mating groove.

[0007] Preferably, a first magnet is connected to the side of the first connecting portion near the second connecting portion, and a second magnet is connected to the side of the second connecting portion near the first connecting portion, with the first magnet and the second magnet corresponding in position.

[0008] Preferably, the first magnet is provided in multiple circumferential directions along the first connecting portion.

[0009] Preferably, multiple sensors are respectively provided at the multiple first magnets to detect the relative position between the first connecting part and the second connecting part.

[0010] Preferably, the sensor is a Hall sensor to detect the magnetic field strength at the corresponding first magnet.

[0011] Preferably, a groove is formed circumferentially on the outer side of the first connecting part, and a boss is formed axially on the outer side of the second connecting part, with the groove and the boss being interference fit.

[0012] This embodiment also provides a voice recorder power supply system, characterized in that it includes a sensor, a processing module, a display module, and a primary recording module. The sensor is used to detect the relative position between the pen body and the pen tip. The processing module is connected to the sensor, the display module, and the recording module respectively. The voice recorder power supply system has multiple working states, and different working states are switched when the pen body and the pen tip rotate relative to each other.

[0013] Compared with existing technologies, the advantages of this invention include: a detachable design between the pen tip and the pen body, facilitating the replacement of different types of pen tips; contactless power supply via a charging coil, reducing the complex connection structure of contact charging and lowering manufacturing costs; and improved waterproof performance of the voice recorder due to contactless charging. Furthermore, the pen body and pen tip are connected by a magnet, which facilitates disassembly while improving connection reliability, making it convenient for users to replace pen tips and enhancing user convenience. Attached Figure Description

[0014] Figure 1 This is a perspective view of the power supply structure for a voice recorder provided by the present invention. Figure 2 This is a perspective view of the power supply structure for a voice recorder provided by the present invention. Figure 3 This is a cross-sectional view of the connection between the pen tip and the pen body in the power supply structure for a recording pen provided by the present invention; Figure 4 This is a schematic diagram of the power supply system connection for a voice recorder provided by the present invention; Reference numerals: 1-pen body, 2-pen tip, 3-first magnet, 4-second magnet, 5-charging coil, 11-first connecting part, 21-second connecting part, 111-mating platform, 112-groove, 211-mating slot, 212-protrusion. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0016] Please see Figure 1 , Figure 2 as well as Figure 3 , Figure 1 This is a perspective view of the power supply structure for a voice recorder provided by the present invention. Figure 2 This is a perspective view of the power supply structure for a voice recorder provided by the present invention. Figure 3 This is a cross-sectional view of the connection between the pen tip and the pen body in the power supply structure for a voice recorder provided by the present invention. This embodiment provides a power supply structure for a voice recorder, including a pen tip 2 and a pen body 1. The pen tip 2 and the pen body 1 are detachably connected. A first connecting portion 11 is formed at the end of the pen body 1 near the pen tip 2, and a second connecting portion 21 is formed at the end of the pen tip 2 near the pen body 1. A charging coil 5 is disposed within the first connecting portion 11 and the second connecting portion 21 for supplying power from the pen body 1 to the pen tip 2. Generally, the battery pack is disposed in the pen body 1, and the pen tip 2 can be powered via the charging coil 5 when necessary.

[0017] A magnet is provided between the first connecting part 11 and the second connecting part 21 to connect them. Specifically, the surface of the first connecting part 11 protrudes to form a mating platform 111, and the second connecting part 21 is recessed to form a mating groove 211. The mating platform 111 and the mating groove 211 are mated together. The mating platform 111 and the mating groove 211 can be either a clearance fit or an interference fit. The charging coils 5 are respectively located at the mating platform 111 and the mating groove 211. Therefore, when the pen tip 2 is connected to the pen body 1, the two corresponding charging coils 5 are close together, which facilitates the power supply between the two charging coils 5. Further preferably, a first magnet 3 is connected to the side of the first connecting part 11 near the second connecting part 21, and a second magnet 4 is connected to the side of the second connecting part 21 near the first connecting part 21. The positions of the first magnet 3 and the second magnet 4 are corresponding. Preferably, the first magnet 3 and the second magnet 4 can be neodymium iron boron magnets. Preferably, a groove 112 is formed on the outer side of the first connecting part 11 along the circumferential direction, and a boss 212 is formed on the outer side of the second connecting part 21 along the axial direction. The groove 112 and the boss 212 are interference fit, which can make the pen body 1 and the pen tip 2 tightly connected and prevent the pen body 1 and the pen tip 2 from separating.

[0018] More preferably, multiple first magnets 3 are arranged circumferentially along the first connecting portion 11, and multiple sensors are respectively arranged at the multiple first magnets 3 to detect the relative position between the first connecting portion 11 and the second connecting portion 21. Specifically, the sensors are Hall sensors to detect the magnetic field strength at the corresponding first magnet 3. When different first magnets 3 correspond to the positions of the second magnets 4, the magnetic field near the corresponding sensor changes, so the relative rotational position between the pen body 1 and the pen tip 2 can be detected. At the same time, text markings are made at the connection between the pen body 1 and the pen tip 2 to correspond to different working states of the pen body 1 and the pen tip 2, such as: disconnected charging state, start recording state, charging state, etc. The corresponding number of first magnets 3 and sensors can be set according to needs.

[0019] Please see Figure 4 , Figure 4 This is a schematic diagram of the power supply system for a voice recorder provided by the present invention. The power supply system includes a sensor, a processing module, a display module, and a recording module. The sensor detects the relative position between the pen body 1 and the pen tip 2. The processing module is connected to the sensor, the display module, and the recording module. The power supply system has multiple operating states; different operating states are switched when the pen body 1 and the pen tip 2 rotate relative to each other. The user can rotate the pen tip 2 to change the relative position between the pen tip 2 and the pen body 1, triggering a corresponding control signal. The microprocessor module then switches the operating state according to this control signal. When the user needs to record audio, for example, a student needs to record the teacher's explanation in class, they can rotate the pen tip to input a control signal. The processing module can then use this control signal to activate the recording module for recording. The processing module receives the recording notes generated by the recording module and stores them in a memory unit to form a recording note file. Simultaneously, it generates a lookup table to record the connection relationship between the recording note file and an e-book file or specific pages, text, icons, or tables within an e-book. For example, in playback mode, the corresponding audio note file is read from the memory unit, and then played through the recording playback module. Users can listen to the audio notes corresponding to specific page text, icons, and tables. This allows users to easily create audio notes. For instance, students can record and save the content explained by the teacher in class and review it later, effectively increasing their learning. Or, general readers can record themselves when they have insights or inspirations, saving these moments in real time and preventing them from being forgotten later.

[0020] In addition, the voice recorder can be equipped with a speech conversion module to perform speech recognition on audio data, obtain transcribed text, and extract key information from the transcribed text. Specifically, after obtaining the audio data, speech recognition can be performed on the audio data to obtain the corresponding transcribed text, and key information can be extracted from the transcribed text. The key information in the transcribed text reflects the main content of the text. This key information can be a text summary; for example, in a multi-person conference application scenario, the audio data can correspond to a speaker's speech, and the key information in the transcribed text can be a summary of that speaker's speech. The key information can also be several keywords in the transcribed text. For example, in applications such as tourist attraction introductions and teaching, it is often necessary to describe a specific scene. When the transcribed text is "There is a small boat on the river, a bird flies across the river, and an airplane is in the sky," the key information in the transcribed text can be multiple keywords such as "river," "boat," "bird," "sky," and "airplane."

[0021] Here, audio and video data can be uploaded to the cloud for speech recognition and key information extraction, or speech recognition and key information extraction can be performed locally using the processing module built into the smart device. Online audio and video processing offers higher accuracy and lower power consumption for speech recognition and key information extraction, but it requires sacrificing some network transmission time. Local audio and video processing offers higher efficiency and stronger real-time performance for speech recognition and key information extraction, and does not require network support, but its accuracy is slightly lower than that of online audio and video processing, and its power consumption is higher.

[0022] In summary, the power supply structure for a voice recorder provided by this invention features a detachable design between the pen tip 2 and the pen body 1, facilitating the replacement of different types of pen tips. Contactless power supply via the charging coil 5 reduces the complexity of contact charging connections, lowers manufacturing costs, and also improves the voice recorder's waterproof performance. Furthermore, the pen body 1 and pen tip 2 are connected by a magnet, which facilitates disassembly while enhancing connection reliability and allowing users to easily replace the pen tip 2, thus improving user convenience.

[0023] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A power supply structure suitable for a voice recorder, characterized in that, Including the nib and the body, of which: The pen tip is detachably connected to the pen body. The end of the pen body near the pen tip forms a first connecting part, and the end of the pen tip near the pen body forms a second connecting part. Charging coils are provided in the first connecting part and the second connecting part for the pen body to supply power to the pen tip. A magnet is provided between the first connecting part and the second connecting part to connect the first connecting part and the second connecting part.

2. The power supply structure for a voice recorder according to claim 1, characterized in that, The first connecting part has a raised surface to form a mating platform, and the second connecting part is recessed inward to form a mating groove. The mating platform and the mating groove are connected in a mating manner, and the charging coil is respectively disposed at the mating platform and the mating groove.

3. The power supply structure for a voice recorder according to claim 1, characterized in that, A first magnet is connected to the side of the first connecting part near the second connecting part, and a second magnet is connected to the side of the second connecting part near the first connecting part. The positions of the first magnet and the second magnet correspond.

4. The power supply structure for a voice recorder according to claim 3, characterized in that, The first magnet is configured in multiple ways along the circumference of the first connecting portion.

5. A power supply structure suitable for a voice recorder according to claim 4, characterized in that, Multiple sensors are respectively provided at the first magnets to detect the relative position between the first connecting part and the second connecting part.

6. A power supply structure suitable for a voice recorder according to claim 5, characterized in that, The sensor employs a Hall effect sensor to detect the magnetic field strength at the corresponding location of the first magnet.

7. The power supply structure for a voice recorder according to claim 1, characterized in that, A groove is formed circumferentially on the outer side of the first connecting part, and a boss is formed axially on the outer side of the second connecting part. The groove and the boss are interference-fitted.

8. A power supply system for a voice recorder, characterized in that, The device includes a sensor, a processing module, a display module, and a recording module. The sensor is used to detect the relative position between the pen body and the pen tip. The processing module is connected to the sensor, the display module, and the recording module. The power supply system of the recording pen has multiple working states, and different working states are switched when the pen body and the pen tip rotate relative to each other.