stylus charging dock

By integrating the charging port and limiting structure into the circuit board of the stylus charging stand, multiple styluses can be charged simultaneously via wired connection. This solves the problems of messy multiple wires and low efficiency and heat generation during wireless charging, thus improving ease of use and safety.

CN224459330UActive Publication Date: 2026-07-03LEMENG CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LEMENG CORP
Filing Date
2025-07-11
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing technologies, charging multiple styluses requires multiple charging cables and devices, resulting in messy cables, high management costs, insufficient wireless charging efficiency, and easy overheating.

Method used

Design a stylus charging stand that integrates multiple charging ports via a single conductive wire through a circuit board, enabling multiple styluses to charge simultaneously. The styluses are also secured by a limiting structure to prevent them from slipping or being damaged by improper operation.

Benefits of technology

Simplify cable layout, improve ease of use, reduce management costs, maintain good charging efficiency, avoid overheating issues, and reduce the risk of electrical interface damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a stylus charging dock for simultaneously charging multiple styluses, comprising a substrate body, multiple charging ports, a circuit board, and a power input port. The charging ports are spaced apart on a first surface of the substrate body, and each charging port has at least one charging terminal. The circuit board is disposed on a second surface of the substrate body and is electrically connected to the charging ports. The power input port is disposed on the circuit board and is electrically connected to the charging ports via the circuit board.
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Description

Technical Field

[0001] This application relates to a charging device, and more specifically, to a stylus charging dock. Background Technology

[0002] Touchscreens have become increasingly common in various smart devices such as smartphones, tablets, electronic whiteboards, and drawing tablets. As an auxiliary tool for touchscreens, styluses are also seeing increased usage. Since most styluses use an active sensing design, they require internal power to support additional functions such as sensing and communication. Therefore, most styluses on the market are equipped with charging capabilities.

[0003] In existing technologies, styluses can be electrically connected to a dedicated charging device via a magnetic interface or USB interface for charging. However, in shared settings such as teaching, meetings, or group projects, charging multiple styluses simultaneously often requires multiple charging cables and devices, leading to messy cables and increased management and wiring costs. Furthermore, while some wireless charging designs can alleviate the cable clutter problem, these devices still suffer from limitations such as insufficient charging efficiency and overheating.

[0004] Therefore, how to provide a stylus charging device that can charge multiple styluses simultaneously while also considering circuit integration and charging efficiency is a problem that urgently needs to be improved in related technical fields. Utility Model Content

[0005] This application provides a stylus charging dock that can charge multiple styluses simultaneously with only a single conductive wire, thus simplifying the configuration of the conductive wire. Furthermore, compared to existing charging devices that achieve wire simplification through wireless charging, this new device still uses wired charging. This not only maintains good charging efficiency but also avoids the heat generation problems common in wireless charging, helping to reduce heat generation during device operation and improving overall device stability and safety.

[0006] On one hand, embodiments of this application provide a stylus charging dock, comprising: a substrate body, multiple charging ports, a circuit board, and a power input port.

[0007] The substrate body includes a first surface and a second surface that are opposite to each other.

[0008] The charging ports are spaced apart on the first surface, and each charging port has at least one charging terminal.

[0009] The circuit board is disposed on the second surface and is electrically connected to the charging port.

[0010] The power input port is disposed on the circuit board, and the power input port is electrically connected to the charging port via the circuit board.

[0011] In some embodiments of this application, the charging port includes a spring-loaded connector, a Type-C connector, a microUSB connector, or a USB connector.

[0012] In some embodiments of this application, the stylus charging further includes a limiting structure disposed on the first surface and comprising a plurality of limiting members. Each limiting member corresponds to a charging port, and the distance between each limiting member and a corresponding charging port is less than or equal to the length of the stylus body. The lines connecting each limiting member to a corresponding charging port do not intersect.

[0013] In some embodiments of this application, the limiting member is a hollow ring structure.

[0014] In some embodiments of this application, the limiting structure further includes a housing, and the limiting member is a groove structure disposed in the housing.

[0015] In some embodiments of this application, the limiting structure further includes a plurality of limiting guide grooves, which are respectively provided corresponding to the limiting member and located on the side of the corresponding limiting member close to the charging port.

[0016] In some embodiments of this application, the stylus charging dock further includes a plurality of magnetic components, the magnetic components being positioned to correspond to the positions of the charging ports, and being disposed on at least one of the substrate body and the charging ports.

[0017] This application has at least the following beneficial effects: By integrating the charging port into the circuit board, the power input port can be electrically connected to each charging port through the circuit structure of the circuit board. Therefore, only a single conductive wire is needed to charge multiple styluses simultaneously, simplifying the wiring layout, improving the ease of use of the stylus charging dock, and reducing management costs. In addition, the limiting structure not only prevents the stylus from slipping off the stylus charging dock or deviating from its predetermined placement position, but also guides the user to pick up the stylus in a specific direction, thereby reducing the risk of damage to the stylus's electrical interface and the charging port due to improper force during repeated engagement and disengagement. Attached Figure Description

[0018] The above and other aspects, features, and advantages of certain embodiments of this application will become more apparent from the following description taken in conjunction with the accompanying drawings, wherein:

[0019] Figure 1This is a perspective view of the stylus charging dock according to the first embodiment of the present invention.

[0020] Figure 2 This is a front view schematic diagram of the stylus charging dock according to the first embodiment of the present invention.

[0021] Figure 3 This is a rear view of the stylus charging dock according to the first embodiment of the present invention.

[0022] Figure 4 This is a side view of the stylus charging dock according to the first embodiment of the present invention.

[0023] Figure 5A and 5B The first embodiment of this invention provides a three-dimensional view and a side view of the stylus charging dock equipped with a stylus.

[0024] Figure 6 and Figure 7 These are front view schematic diagrams of different embodiments of the stylus charging dock of the first embodiment of this invention.

[0025] Figure 8A This is a perspective view of the stylus charging dock according to the second embodiment of the present invention.

[0026] Figure 8B This is a partial enlarged view of the stylus charging dock according to the second embodiment of the present invention, for illustrative purposes. Figure 8A The enlarged view of A illustrates the structure of the charging port on the stylus charging dock.

[0027] Figure 9 This is a front view schematic diagram of the stylus charging dock according to the second embodiment of the present invention.

[0028] Figure 10A This is a side view of the stylus charging dock according to the second embodiment of the present invention.

[0029] Figure 10B This is a partial enlarged view of the stylus charging dock according to the second embodiment of the present invention, for illustrative purposes. Figure 10A The enlarged view of B in the figure illustrates the structure of the charging port.

[0030] Figure 11 This is a side view of the stylus charging dock with a stylus configured according to the second embodiment of the present invention.

[0031] Some of the reference numerals in the attached figures are explained below:

[0032] 100: Stylus charging dock;

[0033] 10: Substrate body;

[0034] 11: First surface;

[0035] 12: Second surface;

[0036] 20: Charging port;

[0037] 21: Charging terminal;

[0038] 31: Circuit board;

[0039] 32: Power input port;

[0040] 40: Limiting structure;

[0041] 41: Limiting component;

[0042] 42: Limiting guide groove;

[0043] 43: Shell;

[0044] 50: Magnetic components;

[0045] P: Stylus;

[0046] L: Pen body setting direction;

[0047] C: Charging unit. Detailed Implementation

[0048] In the following sections, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0049] However, this application can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the application more thorough and complete, and to fully convey the concept of the application to those skilled in the art. In the various figures, all figures are exemplary illustrations of the application for clarity and ease of explanation and do not represent the actual size of the product. Furthermore, the dimensional proportions between components in the figures are not intended to limit the actual product of this application.

[0050] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0051] The above are merely some embodiments and implementation methods of this application. The scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0052] See Figure 1 Figure 2 and Figure 4 The first embodiment of the novel stylus charging dock 100, and the stylus charging dock 100 as described above. Figure 5A The device shown can hold multiple styluses P and can charge the styluses P simultaneously. The stylus charging dock 100 includes a substrate body 10, multiple charging ports 20, a circuit board 31, a power input port 32, and a limiting structure 40.

[0053] The substrate body 10 is used to carry a stylus to be charged and includes a first surface 11 and a second surface 12 opposite to each other. The substrate body 10 may be made of a metal material, a plastic material, or a combination thereof.

[0054] In some embodiments, the substrate body 10 includes a metallic material, which may include aluminum, magnesium, or a magnesium-aluminum alloy. In some embodiments, the substrate body 10 includes a plastic material, which may include at least one of acrylonitrile-butadiene-styrene copolymer (ABS), polycarbonate (PC), nylon, and polybutylene terephthalate (PBT), or other materials suitable for electronic device housings.

[0055] In some embodiments, the periphery of the substrate body 10 is provided with a mounting area, which has a plurality of engagement holes or engagement members for fixing to other devices. Therefore, users can configure the substrate body 10 on portable carriers or workstations according to their actual needs, thereby improving the flexibility and portability of the stylus charging dock 100.

[0056] The charging ports 20 are used to electrically connect to the electrical interface of the stylus and are spaced apart on the first surface 11. Each charging port 20 has at least one charging terminal 21. The charging ports 20 may include spring-loaded connectors, Type-C connectors, micro USB connectors, or USB connectors.

[0057] See also Figure 1 and Figure 2 and Figure 4 In the first embodiment, taking the charging port 20 as a type-c connector as an example, each charging port 20 has a charging terminal 21, and the charging terminal 21 is a type-c terminal.

[0058] See Figure 2 and Figure 5AThe limiting structure 40 is used to limit the stylus P placed on the first surface 11 of the substrate body 10. The limiting structure 40 is disposed on the first surface 11 and includes a plurality of limiting members 41 and a plurality of limiting guide grooves 42. Each limiting guide groove 42 is respectively disposed corresponding to the limiting member 41 and is located on the side of the corresponding limiting member 41 closer to the charging port 20.

[0059] In the first embodiment, the limiting member 41 is a hollow ring structure, and each limiting guide groove 42 extends from the corresponding limiting member 41 along the pen body setting direction L toward the charging port 20.

[0060] Specifically, the first surface 11 of the substrate body 10 defines a plurality of charging units C, which are linearly arranged along a direction orthogonal to the pen body setting direction L, and each charging unit C can accommodate one stylus P to be charged. The limiting members 41 are respectively provided corresponding to the charging ports 20, and each limiting member 41 and a corresponding charging port 20 are spaced apart from each other along the pen body setting direction L and are jointly disposed within the range of one of the charging units C. The distance between the corresponding limiting members 41 and one of the charging ports 20 is less than or equal to the pen body length of the stylus P. One end of the stylus is provided with an electrical interface. When the stylus P is electrically connected to one of the charging ports 20 via the electrical interface of one end, the limiting member 41 and the limiting guide groove 42 corresponding to one of the charging ports 20 cooperate to fix the other end of the stylus P.

[0061] It should be noted that the distribution position of the charging units C can vary depending on product requirements and is not limited to the examples mentioned above. For example, the charging units C can be arranged in arrays, hollow square arrays, fan-shaped distributions, or other arrangements, as long as the lines connecting each limiting member 41 to one of the corresponding charging ports 20 do not intersect.

[0062] In some embodiments, the limiting members 41 are connected to each other to form an integral structure. In other embodiments, the limiting members 41 are spaced apart on the first surface 11.

[0063] See Figure 2 , Figure 3 and Figure 4The circuit board 31 is disposed on the second surface 12, and its circuit structure (not shown) is configured to integrate the charging port 20, so that the circuit board 31 is electrically connected to the charging port 20 via its circuit structure. The circuit board 31 may be selected from a printed circuit board (PCB), a flexible printed circuit board (FPC), or other circuit substrates with conductive wiring functions. The power input port 32 is used to connect to an external power source (not shown) to provide power to the stylus charging dock 100. The power input port 32 is located on the second surface 12 and disposed on the circuit board 31. Specifically, in the first embodiment, the substrate body 10 has a conductive line (not shown) that runs through the first surface 11 and the second surface 12, and the charging port 20 is electrically connected to the circuit structure of the circuit board 31 via the conductive line. The power input port 32 can be electrically connected to the charging port 20 via the circuit structure of the circuit board 31. Therefore, by using a single conductive wire to connect the power input port 32 and the external power source respectively, power can be provided to all the charging ports 20 simultaneously.

[0064] In other embodiments, the limiting structure 40 may only include one of the limiting guide groove 42 and the limiting member 41. In still other embodiments, the stylus charging dock 100 may not include the limiting structure 40.

[0065] See also Figure 2 , Figure 5A and Figure 5B , Figure 5A and Figure 5B The illustration shows an embodiment in which multiple styluses P are placed on the stylus charging dock 100 of the first embodiment for simultaneous charging. In use, the styluses P to be charged are respectively placed on the charging unit C, with the electrical interfaces of the styluses P respectively connected to the corresponding charging ports 20, and the electrical interfaces of the styluses P electrically connected to the charging terminals 21. The tips of the styluses P are correspondingly fixed to the limiting member 41. Then, a conductive wire is used to electrically connect to the power input port 32 and an external power source (not shown), so that multiple styluses P placed on the charging unit C can be charged at the same time.

[0066] Since the circuit board 31 integrates the charging port 20 through its circuit structure, the power input port 32 can be electrically connected to both the charging port 20 and the stylus P simultaneously via the circuit board 31. Therefore, only a single conductive wire is needed to connect the power input port 32 to provide power to multiple styluses P at the same time. Compared to existing charging devices that use multiple sets of conductive wires to charge multiple styluses simultaneously, the stylus charging stand 100 of this invention simplifies the configuration of conductive wires, avoiding messy or complicated wire management. Furthermore, since the stylus charging stand 100 still uses a wired connection to an external power source for charging, compared to some existing charging devices that use wireless charging to simplify wiring, the stylus charging stand 100 of this invention still uses a wired charging method, thus maintaining good charging efficiency and preventing the common problem of overheating in wireless charging devices.

[0067] Furthermore, since the limiting member 41 is located adjacent to the tip of the stylus P and cooperates with the limiting guide groove 42 to limit the stylus P, it can prevent the stylus P from tilting due to accidental touch during charging. Further, the limiting member 41 also provides a shielding function to restrict the direction in which the user removes the stylus P from the stylus charging dock 100, thereby reducing the risk of damaging the electrical interface or charging port 20 of the stylus P due to improper force.

[0068] See Figure 6 In another embodiment of the first embodiment, the limiting structure 40 further includes a housing 43, and the limiting member 41 is a groove structure disposed in the housing 43. The housing 43 and the groove structure of the limiting member 41, in addition to fixing the stylus P (e.g., Figure 5A As shown, it also provides shielding and protection for the tip of the stylus P, preventing the stylus P from being damaged by impact. Preferably, the groove structure of the limiting member 41 is conical, matching the outer contour of the stylus tip.

[0069] In other embodiments, the limiting member 41 may also be an integrally formed structure, and the groove structures of the limiting member 41 are interconnected.

[0070] See Figure 7 In other embodiments of the first embodiment, the limiting guide groove 42 extends along the pen body setting direction L and is spaced apart from the limiting member 41 along the pen body setting direction L. The surface contour of the limiting guide groove 42 is parallel to that of the stylus P (e.g., ...). Figure 5A The shape of at least a portion of the pen body (as shown) matches the outline of the pen body, which helps to fix the placement orientation of the stylus P.

[0071] See Figures 8A-8B , Figure 9 and Figures 10A-10B The second embodiment of the novel stylus charging dock 100 is structurally similar to the first embodiment, except that each charging port 20 is a pogo pin connector with multiple charging terminals 21, and the charging terminals 21 are compressible pogo pin terminals. In this second embodiment, an example is given where each charging port 20 has two spaced-apart charging terminals 21; however, the actual number of charging terminals 21 can be adjusted according to design requirements. (See also...) Figure 11 When the stylus P engages with one of the charging ports 20 via its electrical interface, the charging terminal 21 is pushed inward, causing it to form a stable electrical contact with the electrical interface of the stylus P under a pressed state, thereby ensuring stable charging. Because the spring pin terminal itself is elastic, it can effectively absorb the stress caused by slight displacement or deviation when the stylus P engages with it, preventing damage to the electrical interface of the stylus P due to poor contact or excessive force.

[0072] See Figure 9 and Figure 11 In some embodiments, the stylus charging dock 100 may be selectively configured with a plurality of magnetic members 50, which can be used to magnetically fix the stylus P. The positions of the magnetic members 50 are respectively corresponding to the positions of the charging port 20, and are disposed on at least one of the substrate body 10 and the charging port 20.

[0073] In this embodiment, such as Figure 9 As shown, at least a portion of the magnetic attractor 50 is embedded in the substrate body 10 and disposed between the limiting structure 40 and the charging port 20, while the other portion of the magnetic attractor 50 is correspondingly disposed on the charging port 20, and the charging port 20 is a pogo pin connector. Specifically, the first surface 11 defines a plurality of charging units C, and within the range of each charging unit C, corresponding limiting members 41, two magnetic attractors 50, and charging ports 20 are sequentially spaced along the pen body setting direction L. The distance between each limiting member 41 and one of the corresponding charging ports 20 along the pen body setting direction L is less than or equal to the pen body length of the stylus P. When the stylus P is charged using the stylus charging base 100, the magnetic attractor 50 and the limiting structure 40 together fix the stylus P, preventing the stylus P from detaching from the stylus charging base 100 during charging. In addition, each charging port 20 is provided with two magnetic attachments 50 to further improve the connection stability between the charging terminal 21 of the charging port 20 and the electrical interface of the stylus P.

[0074] It should be noted that the location of the magnetic attractor 50 and the number of magnetic attractors distributed within the range of each charging unit C may vary depending on product requirements. For example, the magnetic attractor 50 may be embedded only in the substrate body 10 and not provided in the charging port 20, or only a single magnetic attractor 50 may be configured within the range of each charging unit C, but this is not limited to the examples mentioned above.

[0075] In summary, the stylus charging dock 100 of this application integrates the charging port 20 using the circuit board 31, allowing the power input port 32 to be electrically connected to the charging port 20 via the circuit structure of the circuit board 31. Therefore, multiple styluses P can be charged simultaneously using only a single conductive cable, eliminating the need for multiple conductive cables or wireless charging. This simplifies the cable layout while maintaining good charging efficiency, thereby improving the ease of use of the stylus charging dock 100 and reducing cable management costs. Furthermore, the limiting structure 40 not only limits the position of the stylus P, preventing it from slipping or shifting during charging, but also provides a shielding effect, guiding the user to pick up the stylus P in a specific direction. This reduces the risk of damage caused by improper force during repeated connection and disconnection of the electrical interface of the stylus P from the charging port 20, thus effectively achieving the desired effect of this application.

Claims

1. A stylus charging dock, suitable for charging multiple styluses simultaneously, characterized in that, Include: The substrate body includes a first surface and a second surface that are opposite to each other; Multiple charging ports are spaced apart on the first surface, and each charging port has at least one charging terminal. A circuit board is disposed on the second surface and electrically connected to the charging port; as well as A power input port is disposed on the circuit board, and the power input port is electrically connected to the charging port via the circuit board.

2. The stylus charging stand of claim 1, wherein, The charging port includes a spring-loaded connector, a Type-C connector, a micro USB connector, or a USB connector.

3. The stylus charging stand of claim 1, wherein, The stylus charging also includes a limiting structure, which is disposed on the first surface and includes multiple limiting components; The limiting members are respectively set to the charging ports, and the distance between each limiting member and the corresponding charging port is less than or equal to the length of the stylus body. The connections between each limiting member and one of the corresponding charging ports do not intersect each other.

4. The stylus charging stand of claim 3, wherein, The limiting component is a hollow ring structure.

5. The stylus charging stand of claim 3, wherein, The limiting structure also includes a housing, and the limiting member is a groove structure disposed in the housing.

6. The stylus charging stand of claim 3, wherein, The limiting structure also includes multiple limiting guide grooves, which are respectively set for the limiting member and located on the side of the corresponding limiting member close to the charging port.

7. The stylus charging stand of claim 1, wherein, The stylus charging dock also includes multiple magnetic components, the positions of which correspond to the positions of the charging ports, and are disposed on at least one of the substrate body and the charging ports.