Extended capacitance pen wireless charging device for tablet computer

Abstract

The invention relates to the technical field of wireless charging, in particular to an expansion type capacitance pen wireless charging device for a tablet personal computer, which specifically comprises a charging seat body for placing a capacitance pen, a supporting assembly is arranged above the charging seat body, and a light absorption assembly is further mounted on the outer wall of the charging seat body. The outer wall of the supporting assembly is slidably connected with a mounting assembly, and an adjusting assembly is mounted between the mounting assembly and the light absorbing assembly. Illumination loss caused by a poor angle can be reduced through adjustability of the solar cell panel, the solar cell panel is unfolded through rotating connection, the sunlight receiving area is effectively increased, the solar cell panel can more fully utilize available illumination resources, more light energy is converted into electric energy, and the energy saving effect is achieved. As the solar cell panel is unfolded to receive more light energy, the charging base can continuously provide stable and sufficient electric energy for the capacitance pen, it is ensured that the electric quantity of the capacitance pen is sufficient in the long-time using process, and therefore the charging efficiency of the whole system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless charging, and in particular to an extended capacitive pen wireless charging device for a tablet computer. Background Art

[0002] A capacitive pen, as the name suggests, is a stylus for capacitive screens. It replaces fingers to directly touch the screen and is mainly used in electronic devices such as capacitive screen mobile phones, tablets, touch notebooks, etc. Capacitive touch screens work using the human body's current induction. When a finger touches the metal layer, a coupling capacitor is formed due to the human body's electric field, the user, and the touch screen surface. For high-frequency current, the capacitor is a direct conductor, so the finger draws a very small current from the contact point. This current flows out from the electrodes on the four corners of the touch screen, and the current flowing through these four electrodes is proportional to the distance from the finger to the four corners. The controller obtains the position information of the touch point by accurately calculating the ratio of these four currents. The capacitive pen is an auxiliary device that uses conductive materials to imitate the human body to complete human-computer dialogue. The extended capacitive pen is a capacitive stylus that can be expanded or scaled. It usually has an adjustable length to suit the needs of different users and the screen size of the device. Solar panels are usually used for wireless charging of capacitive pens. Today's solar panels are usually a photosensitive semiconductor diode made of high-purity silicon. A large number of diodes are arranged to form a layout, which is a solar panel. The solar panel absorbs energy after receiving sunlight, and the semiconductor PN junction electrons are excited and generate voltage and current, which can output electrical energy.

[0003] However, traditional solar panels are usually fixedly installed with capacitive pens, and the angle of the solar panel cannot be adjusted as needed during actual use. When using the capacitive pen for outdoor photography and painting, the angle of the solar panel cannot be adjusted at any time to obtain the best lighting conditions in scenarios such as the capacitive pen suddenly running out of power, which affects the energy collection efficiency of the solar panel and the flexibility of actual application, as well as the user experience, and makes cleaning and maintenance more difficult. In view of this, we propose an extended capacitive pen wireless charging device for tablet computers. Summary of the invention

[0004] The object of the present invention is to provide an extended capacitive stylus wireless charging device for a tablet computer to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides an expandable capacitive pen wireless charging device for a tablet computer, which is used for wirelessly charging the expandable capacitive pen, and specifically comprises a charging seat body for placing the capacitive pen, a support component is arranged above the charging seat body, and the support component is used for limiting and wrapping the capacitive pen, and a light absorbing component is also installed on the outer wall of the charging seat body, and the outer wall of the support component is slidably connected with a mounting component;

[0006] An adjustment component is installed between the installation component and the light absorbing component, and the adjustment component is used to adjust the angular position of the light absorbing component.

[0007] As a further improvement of the present technical solution, the charging seat body includes a charging pile, which is configured as an upper and lower connection between two cylinders, wherein the upper part is smaller than the lower part, a groove is provided on the upper surface of the charging pile, and a plurality of fixing seats are installed on the outer wall of the charging pile.

[0008] As a further improvement of the present technical solution, the support assembly includes a limiting cylinder, the limiting cylinder is arranged inside the groove, and the inner cavity of the limiting cylinder is used for inserting the capacitive stylus.

[0009] As a further improvement of the technical solution, the outer wall of the limit cylinder is provided with a plurality of slide grooves, and there are four slide grooves in a circular array around the limit cylinder. The inner wall of the slide groove is provided with a threaded rod rotatably connected, the outer wall of the threaded rod is threadedly connected with a slider, and the inner wall of the mounting assembly is fixedly connected to the surface of the slider;

[0010] The installation assembly moves along the length direction of the limiting cylinder through the slider.

[0011] As a further improvement of the technical solution, a limiting groove is provided on the surface of the sliding block facing the inner direction of the limiting cylinder, a return spring is arranged inside the limiting groove, and a limiting block is installed at the end of the return spring;

[0012] The four limiting blocks are inside the limiting cylinder to form a shielding area.

[0013] As a further improvement of the technical solution, the light absorbing component includes a solar panel, wherein the solar panel is provided with a plurality of panels to achieve an expanded or contracted shape.

[0014] As a further improvement of the present technical solution, the installation assembly includes a limit ring, wherein the inner wall of the limit ring is fixedly connected to the surface of the slider, and the outer wall of the limit ring is provided with a plurality of connecting seats, and the connecting seats and the fixed seats jointly perform rotational adjustment on the adjustment assembly.

[0015] As a further improvement of the present technical solution, the adjustment assembly includes an adjustment rod and a matching rod, wherein: the end of the adjustment rod is rotatably connected to the fixed seat, the end of the matching rod is rotatably connected to the connecting seat, and a mounting seat is installed on the outer wall of the adjustment rod, and the mounting seat is used for rotational matching between the adjustment rod and the matching rod.

[0016] As a further improvement of the technical solution, the outer wall of the adjustment rod is connected to the inner wall of the solar panel to adjust the angle position of the solar panel.

[0017] As a further improvement of the technical solution, the threaded rod passes through the limiting cylinder to the outside of the charging pile, and a reinforcement rod is installed at the bottom end. A knob is fixedly connected to the bottom end of the reinforcement rod, and the knob is used to adjust the angle position of the solar panel.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the expandable capacitive pen wireless charging device for a tablet computer, the threaded rod is rotated by turning the knob to drive the slider to slide on the threaded rod, so that the installation component drives the adjustment component to adjust the angle of the solar panel according to the actual use situation. This flexibility enables the solar panel to be adjusted according to the change of the solar altitude angle, thereby maximizing the light receiving efficiency and improving the electric energy conversion rate. Compared with the traditional fixed installation method, the adjustable solar panel can reduce the light loss caused by poor angle. By rotating the connection to unfold the solar panel, the area of ​​receiving sunlight is effectively increased, so that the solar panel can make more full use of the available light resources, and more light energy is converted into electric energy. As the solar panel unfolds to receive more light energy, the charging stand can continuously provide stable and sufficient electric energy for the capacitive pen, ensuring that the capacitive pen is fully charged during long-term use, thereby improving the charging efficiency of the entire system; when the device is not needed to charge the capacitive pen wirelessly, the solar panel can be adjusted to a shrunken and wrapped state, which increases the portability of the overall device, and is easier for users to carry and store during movement. At the same time, the adjustable solar panel is convenient for cleaning and maintenance.

[0020] 2. In the extended capacitive pen wireless charging device for a tablet computer, the adjusting component is connected to the supporting component and the light absorbing component, and the overall shape is an umbrella-shaped skeleton. The pressure is evenly dispersed through multiple supporting points to ensure that the overall structure can remain stable in various environments and can effectively resist wind and other external forces to avoid damage. For example, when used for outdoor photography and painting, the solar panel may be affected by wind. The adjusting component designed in the shape of an umbrella skeleton is used to support the solar panel. Through its unique structural design, it can provide strong wind resistance and ensure that the solar panel can still work stably under severe weather conditions. This is especially important for users who need to use or frequently move solar panels outdoors.

[0021] 3. In the extended capacitive pen wireless charging device for a tablet computer, by setting a limit cylinder, the user only needs to insert the capacitive pen into the limit cylinder to automatically align it with the charging pile, which simplifies the operation steps and provides a convenient experience for the user. Since the capacitive pen is guided by the limit cylinder during the insertion process, the user's operational errors that may occur when docking the capacitive pen and the charging stand are reduced, the direct wear on the contact point with the charging pile is reduced, the risk of damage caused by improper operation is reduced, the reliability of use is improved, and the service life of the equipment is extended; at the same time, the limit cylinder can block potential interferences such as external dust and moisture to a certain extent, protect the charging contact points, and improve the durability of the product.

[0022] 4. In the expandable capacitive pen wireless charging device for a tablet computer, a limiting groove is provided on the surface of the slider facing the inner direction of the limiting cylinder, and a reset spring and a spherical limiting block are arranged inside the limiting groove, so that an effective shielding area can be formed when the capacitive pen does not need to be wirelessly charged, thereby reducing the dust from entering the charging pile; when in use, the spherical limiting block can further stabilize the capacitive pen, and when the solar panel is rotated downward and expanded under the joint adjustment of the adjustment component and the installation component, the spherical limiting block moves to the bottom of the capacitive pen for limiting, and conversely, when the solar panel is rotated upward and contracted under the joint adjustment of the adjustment component and the installation component, the spherical limiting block moves to the top of the capacitive pen for limiting, thereby preventing the capacitive pen from shifting or shaking due to external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure assembly of the present invention;

[0024] Figure 2 The second schematic diagram of the overall structure assembly of the present invention;

[0025] Figure 3 It is a schematic cross-sectional view of the overall structure of the present invention;

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A in FIG.

[0027] Figure 5 It is a schematic diagram of the structure of the installation assembly of the present invention;

[0028] Figure 6 It is a schematic diagram of the charging base body of the present invention.

[0029] The meaning of each number in the figure is:

[0030] 100, charging seat body; 101, charging pile; 1011, groove; 1010, fixing seat;

[0031] 200, support assembly; 201, limit cylinder; 2010, slide groove; 2011, threaded rod; 2012, slider; 2013, limit groove; 2014, return spring; 2015, limit block; 2016, reinforcement rod; 2017, knob;

[0032] 300, light absorbing component; 301, solar cell panel;

[0033] 400, mounting assembly; 401, limiting ring; 4010, connecting seat;

[0034] 500, adjustment assembly; 501, adjustment rod; 502, matching rod; 5010, mounting seat. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] A capacitive pen, as the name suggests, is a stylus for capacitive screens. It replaces fingers to directly touch the screen and is mainly used in electronic devices such as capacitive screen mobile phones, tablets, touch notebooks, etc. Capacitive touch screens work using the human body's current induction. When a finger touches the metal layer, a coupling capacitor is formed due to the human body's electric field, the user, and the touch screen surface. For high-frequency current, the capacitor is a direct conductor, so the finger draws a very small current from the contact point. This current flows out from the electrodes on the four corners of the touch screen, and the current flowing through these four electrodes is proportional to the distance from the finger to the four corners. The controller obtains the position information of the touch point by accurately calculating the ratio of these four currents. The capacitive pen is an auxiliary device that uses conductive materials to imitate the human body to complete human-computer dialogue. The extended capacitive pen is a capacitive stylus that can be expanded or scaled. It usually has an adjustable length to suit the needs of different users and the screen size of the device. Solar panels are usually used for wireless charging of the capacitive pen. Today's solar panels are usually a photosensitive semiconductor diode made of high-purity silicon. A large number of diodes are arranged to form a layout, which is a solar panel. The panel absorbs energy after receiving sunlight, and the semiconductor PN junction electrons are excited to generate voltage and current, which can output electrical energy.

[0037] See also Figure 1-Figure 6 As shown, the present embodiment provides an extended capacitive pen wireless charging device for a tablet computer, which is used for wireless charging of an extended capacitive pen. Considering that the traditional solar panel 301 is usually fixedly installed with the capacitive pen, the angle position of the solar panel 301 cannot be adjusted as required during actual use. When the capacitive pen is used for portrait painting outdoors, the capacitive pen suddenly runs out of power, etc., the angle of the solar panel 301 cannot be adjusted at any time to obtain the best lighting conditions, which affects the energy collection efficiency of the solar panel 301 and the flexibility of actual application, and also affects the user experience. Therefore, the details are as follows: specifically comprising a charging seat body 100 for placing the capacitive pen, a support assembly 200 is arranged above the charging seat body 100, the support assembly 200 is used to limit and wrap the capacitive pen, and a light absorbing assembly 300 is also installed on the outer wall of the charging seat body 100, and the outer wall of the support assembly 200 is slidably connected with a mounting assembly 400;

[0038] An adjustment component 500 is installed between the mounting component 400 and the light absorbing component 300 , and the adjustment component 500 is used to adjust the angle position of the light absorbing component 300 .

[0039] The improvement of this embodiment is that:

[0040] The installation component 400 drives the adjustment component 500 to adjust the angle of the solar panel 301 according to the actual use situation. This flexibility enables the solar panel 301 to adjust according to the change of the solar altitude angle, thereby maximizing the light receiving efficiency and improving the power conversion rate. Compared with the traditional fixed installation method, the adjustable solar panel 301 can reduce the light loss caused by the poor angle, so that the solar panel 301 can make fuller use of the available light resources, and more light energy is converted into electrical energy, thereby improving the charging efficiency of the entire system;

[0041] The adjusting component 500 is connected to the supporting component 200 and the light absorbing component 300, and the overall shape is an umbrella-shaped skeleton. The pressure is evenly dispersed through multiple supporting points to ensure that the overall structure can remain stable in various environments and can effectively resist wind and other external forces to avoid damage. For example, when used for outdoor photography and painting, the solar panel 301 may be affected by wind. The adjusting component 500 designed in the shape of an umbrella skeleton is used to support the solar panel 301. Through its unique structural design, it can provide strong wind resistance and ensure that the solar panel 301 can still work stably under severe weather conditions.

[0042] Specifically, the charging stand body 100 includes a charging pile 101, which is configured as an upper and lower connection between two cylinders, wherein the upper part is smaller than the lower part, and a groove 1011 is provided on the upper surface of the charging pile 101, and a plurality of fixing seats 1010 are installed on the outer wall of the charging pile 101. By designing the charging pile 101 into two parts, it is helpful to more reasonably distribute the charging module and the control module, thereby improving the efficiency of power transmission.

[0043] Furthermore, the support assembly 200 includes a limiting cylinder 201, which is arranged inside the groove 1011. The inner cavity of the limiting cylinder 201 is used for inserting the capacitive pen. Through the setting of the limiting cylinder 201, the user only needs to insert the capacitive pen into the limiting cylinder 201 to automatically align it with the charging pile 101, which simplifies the operation steps and provides a convenient experience for the user. Since the capacitive pen is guided by the limiting cylinder 201 during the insertion process, the operational errors that may occur when the user docks the capacitive pen and the charging base are reduced, the direct wear on the contact point with the charging pile 101 is reduced, the risk of damage caused by improper operation is reduced, the reliability of use is improved, and the service life of the equipment is extended.

[0044] In addition, a plurality of slide grooves 2010 are provided on the outer wall of the limiting cylinder 201. There are four slide grooves 2010 in a circular array around the limiting cylinder 201. A threaded rod 2011 is rotatably connected to the inner wall of the slide groove 2010. A slider 2012 is threadedly connected to the outer wall of the threaded rod 2011. The inner wall of the mounting assembly 400 is fixedly connected to the surface of the slider 2012. The mounting assembly 400 moves along the length direction of the limiting cylinder 201 through the slider 2012.

[0045] The rotation of the threaded rod 2011 causes the slider 2012 constituting the lead screw structure to slide on the threaded rod 2011, thereby driving the mounting assembly 400 to move along the length direction of the limiting cylinder 201, and then the adjusting assembly 500 rotatably connected to the mounting assembly 400 drives the solar panel 301 to rotate for angle adjustment.

[0046] In addition, a limiting groove 2013 is provided on the surface of the slider 2012 facing the inner direction of the limiting cylinder 201, a return spring 2014 is arranged inside the limiting groove 2013, a limiting block 2015 is installed at the end of the return spring 2014, and four limiting blocks 2015 are inside the limiting cylinder 201 to form a shielding area;

[0047] By opening a limiting groove 2013 on the surface of the slider 2012 facing the inner direction of the limiting cylinder 201, and arranging a reset spring 2014 and a spherical limiting block 2015 inside the slider 2012, when the capacitive pen does not need to be wirelessly charged, the elastic force of the reset spring 2014 can push the spherical limiting block 2015 toward the middle area of ​​the limiting cylinder 201, so as to form an effective shielding area and reduce the dust from entering the charging pile 101; when in use, the spherical limiting block 2015 does not completely block the limiting cylinder 201, and there is an open space in the middle of the spherical limiting block 2015. The capacitive pen is manually inserted through the middle channel of the limiting cylinder 201. When passing through the middle area, the diameter size of the capacitive pen is adjusted by the reset spring. The elastic force 2014 pushes the spherical limit block 2015 toward the limit groove 2013, and at the same time, the spherical limit block 2015 can further stabilize the capacitive pen. After that, the capacitive pen passes through the middle area channel and contacts and engages with the charging pile 101. When the solar panel 301 rotates downward and unfolds under the joint adjustment of the adjustment component 500 and the installation component 400, the spherical limit block 2015 moves to the bottom of the capacitive pen for limiting. Conversely, when the solar panel 301 rotates upward and shrinks under the joint adjustment of the adjustment component 500 and the installation component 400, the spherical limit block 2015 moves to the top of the capacitive pen for limiting, thereby preventing the capacitive pen from shifting or shaking due to external force.

[0048] Specifically, the light absorbing component 300 includes a solar panel 301, wherein the solar panel 301 is provided with a plurality of panels to achieve an expanded or contracted form. By selecting the solar panel 301 made of a flexible material, the flexible solar panel 301 has the characteristics of being lightweight and bendable, and is suitable for being installed on an umbrella-shaped frame-type adjustment component 500. This design not only reduces the overall weight, but also allows the solar panel 301 to be adjusted at different angles and positions to obtain the optimal lighting angle.

[0049] Further, the installation assembly 400 includes a limit ring 401, wherein the inner wall of the limit ring 401 is fixedly connected to the surface of the slider 2012, and the outer wall of the limit ring 401 is provided with a plurality of connection seats 4010, and the connection seats 4010 and the fixed seat 1010 jointly perform rotational adjustment on the adjustment assembly 500, and the adjustment assembly 500 includes an adjustment rod 501 and a matching rod 502, wherein: the end of the adjustment rod 501 is rotationally connected to the fixed seat 1010, and the end of the matching rod 502 is rotationally connected to the connection seat 4010, and the outer wall of the adjustment rod 501 is provided with a mounting seat 5010, and the mounting seat 5010 is used for rotational cooperation between the adjustment rod 501 and the matching rod 502, and the outer wall of the adjustment rod 501 is connected to the inner wall of the solar cell panel 301 to adjust the angle position of the solar cell panel 301;

[0050] The slider 2012 slides along the length of the limiting cylinder 201, driving the limiting ring 401 to move, so that the matching rod 502 connected to the connecting seat 4010 installed on the outer wall thereof is rotated, and then the adjusting rod 501 connected to the matching rod 502 and the fixing seat 1010 respectively is driven to rotate, and a connecting rod transmission is performed between the adjusting rod 501 and the matching rod 502, so that the matching rod 502 drives the solar cell panel 301 to rotate for angle adjustment, thereby realizing fixation at different angles and expansion and contraction.

[0051] In addition, the threaded rod 2011 passes through the limit tube 201 to the outside of the charging pile 101, and a reinforcement rod 2016 is installed at the bottom end. The bottom end of the reinforcement rod 2016 is fixedly connected to a knob 2017. The knob 2017 is used to adjust the angle position of the solar panel 301. Since the end of the reinforcement rod 2016 is connected to the knob 2017, the user can drive the reinforcement rod 2016 to rotate when turning the knob 2017, thereby driving the threaded rod 2011 connected to the reinforcement rod 2016 to rotate, thereby driving the slider 2012 to slide on the threaded rod 2011, so that the installation component 400 drives the adjustment component 500 to adjust the angle of the solar panel 301 according to actual usage, and the operation is convenient and quick.

[0052] When the expandable capacitive pen wireless charging device for a tablet computer of the present invention is used, the user rotates the knob 2017 to rotate the reinforcing rod 2016 and drive the threaded rod 2011 to rotate, thereby driving the slider 2012 to slide on the threaded rod 2011 along the length of the limiting cylinder 201, driving the limiting ring 401 to move, so that the matching rod 502 connected to the connecting seat 4010 installed on the outer wall thereof is rotated, and then the adjusting rod 501 connected to the matching rod 502 and the fixing seat 1010 respectively is driven to rotate, and a connecting rod transmission is performed between the adjusting rod 501 and the matching rod 502, so that the matching rod 502 drives the solar cell panel 301 to rotate for angle adjustment, thereby achieving fixation at different angles and expansion and contraction;

[0053] The solar panel 301 stores electric energy in the battery inside the charging base through the power management module. When the user puts the capacitive pen into the charging pile 101 through the limiting tube 201, the wireless transmission module inside the charging pile 101 starts to work and transmits electric energy to the capacitive pen through electromagnetic induction or resonant induction. When the solar panel 301 rotates downward and unfolds under the joint adjustment of the adjustment component 500 and the installation component 400, the spherical limiting block 2015 moves to the bottom of the capacitive pen for limiting. Conversely, when the solar panel 301 rotates upward and shrinks under the joint adjustment of the adjustment component 500 and the installation component 400, the spherical limiting block 2015 moves to the top of the capacitive pen for limiting, so as to prevent the capacitive pen from shifting or shaking due to external force. When the capacitive pen does not need to be wirelessly charged, the user can adjust the solar panel 301 to a shrunken and wrapped state by turning the knob 2017, which is convenient for the user to carry and store.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An extended capacitive pen wireless charging device for a tablet computer, used for wirelessly charging an extended capacitive pen, specifically comprising a charging seat body (100) for placing the capacitive pen, characterized in that: A support assembly (200) is arranged above the charging seat body (100), and the support assembly (200) is used to limit and wrap the capacitive stylus, and a light absorbing assembly (300) is also installed on the outer wall of the charging seat body (100), and the outer wall of the support assembly (200) is slidably connected to a mounting assembly (400); An adjustment component (500) is installed between the installation component (400) and the light absorbing component (300), and the adjustment component (500) is used to adjust the angular position of the light absorbing component (300).

2. The extended capacitive stylus wireless charging device for a tablet computer according to claim 1, characterized in that: The charging seat body (100) comprises a charging pile (101), wherein the charging pile (101) is arranged as an upper and lower connection between two cylinders, wherein the upper part is smaller than the lower part, a groove (1011) is provided on the upper surface of the charging pile (101), and a plurality of fixing seats (1010) are installed on the outer wall of the charging pile (101).

3. The extended capacitive stylus wireless charging device for a tablet computer according to claim 1, characterized in that: The support assembly (200) comprises a limiting cylinder (201), wherein the limiting cylinder (201) is arranged inside the groove (1011), and the inner cavity of the limiting cylinder (201) is used for inserting a capacitive stylus.

4. The extended capacitive stylus wireless charging device for a tablet computer according to claim 3, characterized in that: The outer wall of the limiting cylinder (201) is provided with a plurality of slide grooves (2010), and there are four slide grooves (2010) in a circular array around the limiting cylinder (201); the inner wall of the slide groove (2010) is rotatably connected to a threaded rod (2011); the outer wall of the threaded rod (2011) is threadedly connected to a slider (2012); and the inner wall of the mounting assembly (400) is fixedly connected to the surface of the slider (2012); The installation assembly (400) moves along the length direction of the limiting cylinder (201) via the slider (2012).

5. The extended capacitive stylus wireless charging device for a tablet computer according to claim 4, characterized in that: A limiting groove (2013) is provided on the surface of the sliding block (2012) facing the interior of the limiting cylinder (201), a return spring (2014) is arranged inside the limiting groove (2013), and a limiting block (2015) is installed at the end of the return spring (2014); The four limiting blocks (2015) are inside the limiting cylinder (201) to form a shielding area.

6. The extended capacitive stylus wireless charging device for a tablet computer according to claim 1, characterized in that: The light absorbing component (300) comprises a solar cell panel (301), wherein the solar cell panel (301) is provided with a plurality of panels to achieve an expanded and contracted form.

7. The extended capacitive stylus wireless charging device for a tablet computer according to claim 1, characterized in that: The mounting assembly (400) comprises a limiting ring (401), wherein the inner wall of the limiting ring (401) is fixedly connected to the surface of the slider (2012), and the outer wall of the limiting ring (401) is provided with a plurality of connecting seats (4010), and the connecting seats (4010) and the fixing seats (1010) jointly perform rotational adjustment on the adjusting assembly (500).

8. The extended capacitive stylus wireless charging device for a tablet computer according to claim 1, characterized in that: The adjustment assembly (500) comprises an adjustment rod (501) and a matching rod (502), wherein: the end of the adjustment rod (501) is rotatably connected to the fixing seat (1010), and the end of the matching rod (502) is rotatably connected to the connecting seat (4010); a mounting seat (5010) is installed on the outer wall of the adjustment rod (501), and the mounting seat (5010) is used for rotational matching between the adjustment rod (501) and the matching rod (502).

9. The extended capacitive stylus wireless charging device for a tablet computer according to claim 8, characterized in that: The outer wall of the adjustment rod (501) is connected to the inner wall of the solar cell panel (301) so as to adjust the angle position of the solar cell panel (301).

10. The extended capacitive stylus wireless charging device for a tablet computer according to claim 4, characterized in that: The threaded rod (2011) passes through the limiting cylinder (201) to the outside of the charging pile (101), and a reinforcing rod (2016) is installed at the bottom end. The bottom end of the reinforcing rod (2016) is fixedly connected to a knob (2017), and the knob (2017) is used to adjust the angle position of the solar panel (301).

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