Intelligent pen with 360-degree magnetic induction switch

Abstract

The intelligent pen comprises a pen cap and a pen body, a pen holder used for fixedly installing a control circuit board and a Hall switch is arranged in the pen body, the Hall switch is electrically connected with the control circuit board, the inner side wall of the pen cap is of a cylindrical barrel-shaped structure, an annular concave step portion is arranged on the outer wall of the lower portion of the pen cap, and the annular concave step portion is connected with the Hall switch. An annular magnet is mounted on the step part, and when the pen body is inserted into the pen cover at any angle, the inner side wall of the annular magnet can be close to a specified distance of the Hall switch and enables the Hall switch to generate a shutdown signal; when the pen body is pulled out of the pen cover, the annular magnet on the pen cover is far away from the Hall switch and enables the Hall switch to generate a starting-up signal. The intelligent pen is provided with the automatic induction switch, the annular magnet has uniform magnetic field distribution, and the Hall switch is stably triggered in a 360-degree all-dimensional no-dead-corner mode, so that the use convenience is improved, and the user experience is enhanced; the battery life can be effectively prolonged, and power consumption in a non-use state is avoided.

Description

Technical Field

[0001] The utility model relates to the field of smart pens, and particularly to a smart pen with 360-degree magnetic induction for power on / off. Background Art

[0002] As an innovative tool, a smart pen can instantly convert notes, sketches, etc. written on paper into digital content and seamlessly synchronize them to digital devices such as smartphones, tablets, or computers, greatly improving the convenience of learning and working.

[0003] However, for the magnet installed on the side wall of the existing pen cap, when inserted into the pen body at certain specific angles, the magnetic field lines may be blocked and thus cannot be effectively sensed by the built-in magnetic sensor, resulting in temporary failure of the function. Especially when a battery or other components with magnetic isolation characteristics are additionally configured at the front end of the pen body, the range of angles at which this failure occurs may further expand, affecting the continuity of the user experience. For example, the design of the "Smart Pen" described in the patent No. 201822025658.4. Therefore, there is an urgent need in the market for a magnetic induction power on / off device that can more accurately identify the actions of the pen cap. Summary of the Utility Model

[0004] Aiming at the above problems, the utility model aims to provide a smart pen with 360-degree magnetic induction for power on / off that can accurately identify the actions of the pen cap.

[0005] To achieve the technical purpose, the solution of the utility model is: A smart pen with 360-degree magnetic induction for power on / off, including a pen cap and a pen body. A pen holder for fixedly installing a control circuit board and a Hall switch is arranged inside the pen body. The Hall switch is electrically connected to the control circuit board. The inner side wall of the pen cap is a cylindrical tubular structure. A stepped portion with a circular recess is arranged on the outer wall of the lower part of the pen cap. An annular magnet is installed on the stepped portion. When the pen body is inserted into the pen cap at any angle, the inner side wall of the annular magnet can approach a specified distance from the Hall switch and generate a power-off signal; when the pen body is pulled out of the pen cap, the annular magnet on the pen cap moves away from the Hall switch and generates a power-on signal.

[0006] Preferably, a pen core is nested and installed inside the pen holder, and a pressure sensing component is also fixed inside the pen holder. The pressure sensing component is arranged at the end of the pen holder and is opposite to the tail end of the pen core.

[0007] Preferably, a silica gel sleeve is also sleeved outside the annular magnet, and the edge of the silica gel sleeve is bonded to the edge of the stepped portion of the pen cap.

[0008] Preferably, the smart pen further includes a battery. A receiving chamber for placing the battery is configured on the pen holder. The Hall switch is arranged on the battery; a clamping chamber for fixing the control circuit board is configured on the pen holder.

[0009] Preferably, the pressure sensing component is composed of an assembly frame, a moving magnet, a fixed magnet and a pressure sensor installed at the end of the assembly frame. The assembly frame can be snap-connected to the pen core. A fixed cavity for accommodating the moving magnet and an installation groove for accommodating the pressure sensor are respectively arranged at the end of the assembly frame. A magnet positioning groove for accommodating the fixed magnet is arranged on the pen holder;

[0010] The moving magnet and the fixed magnet can magnetically adsorb each other and squeeze the pressure sensor.

[0011] Preferably, a cover is connected to the end of the pen holder, and charging contacts are arranged on the cover.

[0012] The beneficial effects of the present utility model are as follows: The intelligent pen designed in this application is equipped with an automatic induction switch. The ring magnet has a uniform magnetic field distribution, and the Hall switch can be stably triggered omnidirectionally without dead angles at 360 degrees, improving the convenience of use and enhancing the user experience; this application can also effectively avoid accidentally touching the power-on button when rotating the pen cap, further improving the battery life and avoiding power consumption in the non-use state. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is an exploded view of the present utility model;

[0015] Figure 3 is a schematic front structural diagram of the pen holder in the present utility model;

[0016] Figure 4 is a schematic back structural diagram of the pen holder in the present utility model;

[0017] Figure 5 is a schematic internal structural diagram of the pen holder in the present utility model.

[0018] In the figure: 1. Pen cap; 101. Step portion; 2. Pen body; 3. Pen holder; 301. Accommodating chamber; 302. Clamping chamber; 303. Magnet positioning groove; 4. Control circuit board; 5. Hall switch; 6. Ring magnet; 7. Pen core; 8. Pressure sensing component; 801. Assembly frame; 802. Moving magnet; 803. Fixed magnet; 804. Fixed cavity; 805. Installation groove; 9. Battery; 10. Cover; 11. Charging contact. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the present utility model of the present application in detail with reference to the accompanying drawings and specific embodiments. In order to describe the technical solutions clearly and completely, the following embodiments are selected for description; based on the content recorded in the present application, other embodiments obtained without creative efforts fall within the scope of protection of the present utility model.

[0020] In the following embodiments, it should be noted that the orientation or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", "top / bottom", etc. in the terms are all based on the orientation or positional relationships shown in the drawings. It is only for the convenience of clearly describing this embodiment, rather than indicating or implying that the device or element referred to must have a specific orientation. Therefore, it should not be construed as a limitation to this application.

[0021] As Figures 1-5 shown, a specific embodiment of the present utility model is an intelligent pen with 360-degree magnetic induction power on / off. It includes a pen cap 1 and a pen body 2. Inside the pen body 2, there is a pen holder 3 for fixedly installing a control circuit board 4 and a Hall switch 5. The Hall switch 5 is a magnetic sensor based on the Hall effect. The Hall switch 5 is electrically connected to the control circuit board 4. The inner side wall of the pen cap 1 is a cylindrical tubular structure. On the outer wall of the lower part of the pen cap 1, there is a stepped portion 101 with a circular depression. An annular magnet 6 is installed on the stepped portion 101. When the pen body 2 is inserted into the pen cap 1 at any angle, since the annular magnet 6 is in a ring structure, there must be a section of the inner side wall of the annular magnet 6 that can approach a specified distance from the Hall switch 5, changing the magnetic field around it and causing the Hall switch 5 to generate a shutdown signal. When the pen body 2 is pulled out of the pen cap 1, the annular magnet 6 on the pen cap 1 moves away from the Hall switch 5, and the magnetic field changes and causes it to generate a startup signal. The cylindrical tubular structure inside the pen cap 1 facilitates the insertion of the pen body 2, while the circularly depressed stepped portion 101 at the lower part of the pen cap 1 is used to install the annular magnet 6. The design of the stepped portion 101 provides a stable installation position for the annular magnet 6, ensuring that the relative position between the annular magnet 6 and the Hall switch 5 is fixed and accurate. In this way, no matter at what angle the pen cap 1 is inserted into the pen body 2, it can be ensured that the annular magnet 6 can approach the specified distance from the Hall switch 5, thereby triggering the shutdown signal.

[0022] At the same time, once a student accidentally touches and rotates the pen cap of a traditional intelligent pen, it may cause the Hall switch to enter the induction dead zone, and then wrongly trigger the startup signal. However, after the pen cap of the intelligent pen in this application is put on and the pen is shut down, even if the pen cap is rotated, the magnetic field sensed by the Hall switch 5 from the annular magnet 6 is almost always the same, and no false touch signal will be generated. Therefore, when the intelligent pen in this application is used, it can almost 100% achieve power on when the cap is pulled out, power off when the cap is inserted, and will not trigger power on when the pen is shut down and the cap is not pulled out. Compared with existing products, it has made significant progress and greatly improved the battery life of the intelligent pen.

[0023] In order to ensure the fixation of the magnet, a silica gel sleeve is also sleeved outside the annular magnet 6. The edge of the silica gel sleeve is bonded to the edge of the stepped portion 101 of the pen cap 1, ensuring the stability and sealing of the silica gel sleeve. This connection method is simple and reliable, not easy to fall off, and is also convenient for replacement and maintenance. At the same time, the silica gel material also has a certain anti-slip and shock-absorbing effect, improving the user experience.

[0024] The intelligent pen further includes a battery 9. A receiving chamber 301 for placing the battery 9 is configured on the pen holder 3, providing a safe and stable storage space for the battery 9. The Hall switch 5 is arranged on the battery 9, and this design is beneficial to simplifying the circuit layout. A clamping chamber 302 for fixing the control circuit board 4 is configured on the pen holder 3, ensuring the stable installation of the circuit board within the pen holder 3.

[0025] A pen refill 7 is nested and installed within the pen holder 3. A pressure sensing assembly 8 is also fixed within the pen holder 3, and the pressure sensing assembly 8 is arranged at the end of the pen refill 7.

[0026] Specifically, the pressure sensing assembly 8 is composed of an assembly frame 801, a moving magnet 802 installed at the tail end of the assembly frame 801, a fixed magnet 803, and a pressure sensor. The assembly frame 801 can be snap-connected to the pen refill 7. A fixed cavity 804 for accommodating the moving magnet 802 and an installation groove 805 for accommodating the pressure sensor are respectively arranged at the tail end of the assembly frame 801. A magnet positioning groove 303 for accommodating the fixed magnet 803 is arranged on the pen holder 3.

[0027] The moving magnet 802 and the fixed magnet 803 can magnetically adsorb each other and squeeze the pressure sensor. When the magnetic adsorption force between the two squeezes the pressure sensor, the pressure sensor will generate a corresponding electrical signal, and this signal is proportional to the writing pressure. Due to the magnetic adsorption force between the two, the moving magnet 802 will approach the fixed magnet 803 and squeeze the pressure sensor located between them. After being squeezed, the pressure sensor generates an electrical signal, and this signal is transmitted to the processing unit of the intelligent pen through a circuit, and is converted into a digital signal after being processed, finally realizing the induction and recording of the writing pressure.

[0028] For the convenience of charging, a cover 10 is connected to the tail end of the pen holder 3, and a charging contact 11 is arranged on the cover 10. The charging contact 11 is the interface between the intelligent pen and an external charging device, used for charging the battery 9, improving the convenience of use.

[0029] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention. Any minor modifications, equivalent replacements, and improvements made to the above embodiments based on the technical essence of the present invention shall be included within the protection scope of the technical solution of the present invention.

Claims

1. An intelligent pen with 360-degree magnetic induction for power on and off, comprising a pen cap and a pen body. A pen holder for fixedly installing a control circuit board and a Hall switch is arranged inside the pen body. The Hall switch is electrically connected to the control circuit board. The inner side wall of the pen cap is of a cylindrical tubular structure, and is characterized in that: A stepped portion with an annular depression is provided on the outer wall of the lower part of the pen cap. An annular magnet is installed on the stepped portion. When the pen body is inserted into the pen cap at any angle, the inner side wall of the annular magnet can approach a specified distance from the Hall switch and generate a shutdown signal; when the pen body is pulled out of the pen cap, the annular magnet on the pen cap moves away from the Hall switch and generates a startup signal.

2. The intelligent pen with 360-degree magnetic induction for power on / off according to claim 1, wherein: A refill is nested and installed in the pen holder. A pressure sensing component is also fixed in the pen holder. The pressure sensing component is arranged at the end of the pen holder and is opposite to the tail end of the refill.

3. The intelligent pen with 360-degree magnetic induction for power on / off according to claim 1, wherein: A silica gel sleeve is also sleeved outside the annular magnet, and the edge of the silica gel sleeve is bonded to the edge of the stepped portion of the pen cap.

4. The intelligent pen with 360-degree magnetic induction for power on and off according to claim 1, characterized in that: The intelligent pen further includes a battery. A receiving chamber for placing the battery is configured on the pen holder, and the Hall switch is arranged on the battery; a clamping chamber for fixing the control circuit board is configured on the pen holder.

5. The intelligent pen with 360-degree magnetic induction for power on / off according to claim 2, wherein: The pressure sensing component includes an assembly frame, a moving magnet, a fixed magnet and a pressure sensor installed at the tail end of the assembly frame. The assembly frame can be snap-connected to the refill. Fixing cavities for accommodating the moving magnet and installation grooves for accommodating the pressure sensor are respectively arranged at the tail end of the assembly frame. A magnet positioning groove for accommodating the fixed magnet is arranged on the pen holder; The moving magnet and the fixed magnet can magnetically adsorb and press the pressure sensor against each other.

6. The intelligent pen with 360-degree magnetic induction for power on / off according to claim 4, wherein: The tail end of the pen holder is connected with a cover, and charging contacts are arranged on the cover.

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