CN212846735U

CN212846735U - Capacitance pen and electronic equipment assembly

Info

Publication number: CN212846735U
Application number: CN202021992117.XU
Authority: CN
Inventors: 胡现坤
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-03-30
Anticipated expiration: 2030-09-11

Abstract

The present disclosure provides a capacitance pen and an electronic device assembly. The capacitance pen includes: the pen container comprises a pen container body, a conductive wall, a conductive pen point, a controller and a switch module. The pen container comprises a holding area, the conductive wall is arranged in the holding area, the conductive pen point is arranged at one end of the pen container, the controller is arranged in the pen container and connected with the conductive pen point, the switch module is connected between the conductive wall and the conductive pen point and further connected with the controller, and the switch module is used for conducting or disconnecting the conductive wall and the conductive pen point. This electric capacity pen can realize multiple mode, does benefit to and promotes user experience.

Description

Capacitance pen and electronic equipment assembly

Technical Field

The present disclosure relates to the field of electronic devices, and in particular, to a capacitive pen and an electronic device assembly.

Background

With the development of electronic devices, electronic devices such as tablet computers need to use a capacitive pen instead of a keyboard or a finger for data input. Especially, as the screen of the mobile phone becomes larger and the foldable screen develops, the capacitive pen begins to be popular at the mobile phone end. At present, the capacitive pen comprises an active capacitive pen and a passive capacitive pen, and the active capacitive pen and the passive capacitive pen have single working modes and cannot meet the use requirements of users.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides an improved capacitive pen and an electronic device.

One aspect of the present disclosure provides a capacitance pen, including:

a pen container comprising a gripping area;

the conductive wall is arranged in the holding area;

the conductive pen point is arranged at one end of the pen container;

the controller is arranged on the pen container and is connected with the conductive pen point; and

the switch module is connected between the conductive wall and the conductive pen point, the switch module is further connected with the controller, and the switch module is used for switching on or switching off the conductive wall and the conductive pen point.

Optionally, the switch module includes a power switch, the power switch including a grid, a first pole and a second pole, the grid being connected to the controller, the first pole being connected to the conductive wall, the second pole being connected to the conductive nib.

Optionally, the capacitive pen further comprises a signal transceiver connected to the controller, the signal transceiver is disposed in the pen container, and the signal transceiver is located between the conductive wall and the conductive pen tip.

Optionally, the capacitive pen further comprises a pressure sensor arranged in the pen container, and the pressure sensor is connected with the conductive pen tip and the controller.

Optionally, the capacitive pen further comprises a gravity sensor arranged in the pen container, and the gravity sensor is connected with the controller.

Optionally, the capacitive pen further comprises a power module arranged in the pen container, and the power module is connected with the controller.

Optionally, the power module includes a rechargeable battery, the capacitive pen further includes a charging interface disposed on the pen container, and the charging interface is connected with the rechargeable battery.

Optionally, the capacitive pen further comprises a first wireless communication module arranged in the pen container, and the first wireless communication module is connected with the controller.

Optionally, the conductive wall is in a ring structure and sleeved on the holding area.

Another aspect of the present disclosure provides an electronic device assembly, comprising:

an electronic device comprising a touch screen;

a capacitance pen as described in any one of the above.

The technical scheme provided by the disclosure at least has the following beneficial effects:

the capacitive pen and the electronic equipment assembly are connected between the conductive wall and the conductive pen point based on the switch module, the switch module is connected with the controller, and the conductive wall and the conductive pen point are conducted by the controller so as to realize a working mode of a passive capacitive pen or a composite working mode of the passive capacitive pen and an active capacitive pen. The switch module is controlled by the controller to disconnect the conductive wall and the conductive pen point, and the controller controls the conductive pen point to work so as to realize the working mode of the active capacitance pen. Based on this, this electric capacity pen can realize multiple mode, does benefit to and promotes user experience.

Drawings

FIG. 1 is a schematic diagram of a passive capacitive stylus in accordance with an exemplary embodiment;

FIG. 2 is a schematic diagram illustrating an active capacitive stylus according to an exemplary embodiment;

FIG. 3 is a schematic diagram illustrating the structure of an electronic device assembly according to an exemplary embodiment of the present disclosure;

FIG. 4 is a schematic diagram illustrating a capacitive stylus according to an exemplary embodiment of the present disclosure;

fig. 5 is a circuit diagram illustrating a P-type power switch tube according to an exemplary embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in the description and claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprises" or "comprising" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

As used in this disclosure and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Fig. 1 is a schematic structural diagram of a passive capacitive stylus according to an exemplary embodiment. In some embodiments, referring to fig. 1, a passive capacitance pen includes: the pen container 110, the conductive nib 120 arranged at one end of the pen container 110 and the conductive wall 130 arranged at the holding area of the pen container 110, wherein the conductive wall 130 is connected with the conductive nib 120. When the user uses the passive capacitive pen, the conductive wall 130 of the pen container 110 is held by a hand, which connects the hand of the user with the conductive tip 120 through the conductive wall 130, so that the passive capacitive pen simulates the fingers of the user to realize a touch function.

Fig. 2 is a schematic structural diagram of an active capacitive pen according to an exemplary embodiment. In some embodiments, referring to fig. 2, the active capacitance pen includes: the pen container 210, the conductive pen tip 220 arranged at one end of the pen container 210, the signal transceiver 230 arranged on the pen container 210, and the battery 240, the controller 250, the wireless communication module 260, the pressure sensor 270 and the gravity sensor 280 arranged in the pen container 210. The battery 240 supplies power to the wireless communication module 260, the pressure sensor 270, and the gravity sensor 280 through the controller 250, the pressure sensor 270 is connected to the conductive tip 220, and the conductive tip 220 and the signal transceiver 230 are connected to the controller 250.

The controller 250 is used for controlling the conductive pen tip 220 and the signal transceiver 230 to transmit signals to the touch screen of the electronic device, and receiving signals transmitted by the touch screen of the electronic device through the signal transceiver 230, so as to establish communication between the capacitive pen and the electronic device. The signal is then continuously transmitted through the conductive tip 220 and the transceiver 230, thus simulating a user's finger to perform a clicking or sliding operation on the touch screen. The pressure sensor 270 is used for detecting a pressure signal of the conductive pen tip 220 and sending the pressure signal to the electronic device through the wireless communication module 260, and the electronic device adjusts the thickness of the line based on the pressure signal. The gravity sensor 280 is configured to detect a tilt angle signal of the active capacitive pen, and send the tilt angle signal to the electronic device through the wireless communication module 260, and the electronic device adjusts a bending angle of a line based on the tilt angle signal. However, when the active capacitive stylus is exhausted, the active capacitive stylus will not work.

Based on the above, the passive capacitive pen and the active capacitive pen have single working modes, and cannot meet different use requirements of users. Therefore, the embodiment of the disclosure provides a capacitance pen and an electronic device assembly.

Fig. 3 is a schematic structural diagram of an electronic device assembly shown in the present disclosure according to an exemplary embodiment. Referring to fig. 3, the electronic device assembly includes an electronic device 310 and a capacitive stylus 320.

The electronic device 310 includes a touch screen 311 and a second wireless communication module (not shown). The electronic device 310 includes, but is not limited to: the system comprises a mobile phone, a tablet computer, an iPad, a digital broadcast terminal, a messaging device, a game console, a medical device, a fitness device, a personal digital assistant, an intelligent wearable device, an intelligent television, an intelligent sound box and the like.

The first wireless communication module of the capacitance pen 320 is wirelessly connected with the second wireless communication module. This enables interaction between the capacitive stylus 320 and the electronic device 310.

Fig. 4 is a schematic structural diagram illustrating a capacitive pen 320 according to an exemplary embodiment of the present disclosure. Referring to fig. 4, the capacitance pen 320 includes: a pen barrel 321, a conductive wall 322, a conductive pen tip 323, a controller 325, and a switch module 329.

The barrel 321 includes a gripping area. The holding area is an area where the capacitive pen 320 is held by a hand.

The conductive wall 322 is disposed at the gripping area. Illustratively, the conductive wall 322 is in the form of a ring that fits over the gripping area. Thus, when a user holds the holding area of the capacitive pen 320 at different angles, the user can easily contact the conductive wall 322.

The conductive pen tip 323 is disposed at one end of the pen container 321, and is used for contacting the touch screen 311 of the electronic device 310 to implement a touch function. Illustratively, the material of the conductive tip 323 is a conductive rubber material or a conductive plastic material, which gives flexibility to the conductive tip 323 so that it does not damage the touch screen 311.

The controller 325 is disposed on the pen container 321, and the controller 325 is connected to the conductive pen tip 323. The controller 325 is used to control the conductive tip 323 to transmit a signal to the touch screen 311, thus simulating a user's finger to perform a clicking or sliding operation on the touch screen 311.

The switch module 329 is connected between the conductive wall 322 and the conductive tip 323, the switch module 329 is further connected to the controller 325, and the switch module 325 is used to turn on or off the conductive wall 322 and the conductive tip 323.

The capacitive pen 320 and the electronic device assembly provided by the present disclosure are based on that the switch module 329 is connected between the conductive wall 322 and the conductive pen tip 323, and the switch module 329 is controlled by the controller 325 to conduct the conductive wall 322 and the conductive pen tip 323, so as to implement a working mode of a passive capacitive pen or a composite working mode of the passive capacitive pen and an active capacitive pen. The switch module 329 is controlled by the controller 325 to disconnect the conductive wall 322 and the conductive nib 323, and the controller 325 controls the conductive nib 323 to operate, so as to implement an operating mode of the active capacitive pen. Based on this, this electric capacity pen can realize multiple mode, does benefit to and promotes user experience.

In some embodiments, with continued reference to fig. 4, the capacitive stylus 320 further includes a signal transceiver 324 connected to the controller 325, the signal transceiver 324 is disposed on the pen barrel 321, and the signal transceiver 324 is located between the conductive wall 322 and the conductive tip 323. The controller 325 is used for controlling the signal transceiver 324 and the conductive tip 323 to transmit signals to the touch screen 311, and controlling the signal transceiver 324 to receive signals transmitted by the touch screen 311, so as to establish communication between the capacitive stylus 320 and the electronic device 310. The signal is then continuously transmitted through the conductive tip 323 and the signal transceiver 324, thus simulating a user's finger to perform a clicking or sliding operation on the touch screen 311. Illustratively, the signal transceiver 324 is disposed on the barrel 321 proximate to the conductive tip 323. Illustratively, the signal transceiver 324 comprises a metal ring that is fitted around the barrel 321 and is located between the conductive wall 322 and the conductive tip 323. The signal transceiver 324 is a metal ring, which can increase the signal transceiving area and facilitate signal transmission or reception.

In some embodiments, with continued reference to fig. 4, the capacitive pen 320 further includes a first wireless communication module 326 disposed in the pen holder 321, and the first wireless communication module 326 is connected to the controller 325. The first wireless communication module 326 may be wirelessly connected with a second wireless communication module of the electronic device 310 to enable interaction between the capacitive stylus 320 and the electronic device 310. Illustratively, the first wireless communication module 326 includes a bluetooth module.

In some embodiments, with continued reference to FIG. 4, the capacitive pen 320 further includes a pressure sensor 330 disposed in the pen barrel 321, the pressure sensor 330 being coupled to the conductive tip 323 and the controller 325. The pressure sensor 330 is used for detecting a pressure signal of the conductive tip 323, and the controller 325 obtains the pressure signal detected by the pressure sensor 330 and then sends the pressure signal to the electronic device 310 through the first wireless communication module 326. The electronic device 310 adjusts the thickness of the line drawn by the conductive pen tip 323 based on the pressure signal to improve the writing accuracy and improve the user experience.

In some embodiments, with continued reference to fig. 4, the capacitive pen 320 further comprises a gravity sensor 331 disposed on the pen barrel 321, the gravity sensor 331 being connected to the controller 325. The gravity sensor 331 is configured to detect an inclination angle signal of the capacitive pen 320, and after the controller 325 obtains the inclination angle signal detected by the gravity sensor 331, the inclination angle signal is sent to the electronic device 310 through the first wireless communication module 326, and the electronic device 310 may determine the inclination angle of the capacitive pen 320 based on the inclination angle signal, and further adjust an angle of a line drawn by the conductive pen tip 323, so as to improve writing accuracy and experience.

In some embodiments, with continued reference to fig. 4, the capacitive pen 320 further comprises a power module 328 disposed in the pen barrel 321, the power module 328 being connected to the controller 325. The controller 325, the first wireless communication module 326, the pressure sensor 330, and the gravity sensor 331 are powered by a power module 328. Further, in some embodiments, the power module 328 includes a rechargeable battery, and with continued reference to fig. 4, the capacitive pen 320 further includes a charging interface 332 disposed on the pen holder 321, and the charging interface 332 is connected to the rechargeable battery. The rechargeable battery is charged by plugging an external charging power supply with the charging interface 332. Illustratively, the charging interface 332 is disposed at two ends of the pen barrel 321 opposite to the conductive pen tip 323. Illustratively, the charging interface 332 may be a Type-C interface.

In some embodiments, the controller 325 may monitor the power of the power module 328 in real time. The controller 325 may control the switch module 329 to turn on or off the conductive wall 322 and the conductive tip 323 based on the power of the power module 328, so that the capacitive pen 320 operates in the following three operation modes:

in the first operation mode, the controller 325 controls the switch module 329 to disconnect the conductive wall 322 and the conductive tip 323 and controls the first wireless communication module 326, the pressure sensor 330 and the gravity sensor 331 to operate in response to the power of the power module 328 being greater than the reference threshold, and controls the signal transceiver 324 and the conductive tip 323 to transmit signals to the touch screen 311 and the signal transceiver 324 to receive signals transmitted by the touch screen 311. In this way, the capacitive stylus 320 is enabled to operate in the active capacitive stylus mode of operation. This example may be applicable where the power supply module 328 is sufficiently charged, and the reference threshold may be 10%.

In a second operation mode, the controller 325 controls the switch module 329 to turn on the conductive wall 322 and the conductive tip 323, controls the first wireless communication module 326 and the pressure sensor 330 to operate, and controls the signal transceiver 324 to stop transmitting and receiving signals in response to the power of the power module 328 being less than the reference threshold. Thus, the capacitive pen 320 works in a working mode of a passive capacitive pen and a composite working mode of partial functions of an active capacitive pen, which is not only beneficial to saving power consumption, but also improves writing precision and experience.

In the third operation mode, when the power module 328 is exhausted, the signal transceiver 324, the controller 325, the first wireless communication module 326, the pressure sensor 330 and the gravity sensor 331 cannot operate. At this time, the switch module 329 conducts the conductive wall 322 and the conductive tip 323, so that the capacitive pen 320 operates in the passive capacitive pen operation mode.

In the three operation modes, based on the large difference between the operation mode of the active capacitive stylus and the operation mode of the passive capacitive stylus, the electronic device 310 needs to set a first touch mode matching the operation mode of the active capacitive stylus and a second touch mode matching the operation mode of the passive capacitive stylus, and the second touch mode can be used in combination with a part of the first touch mode. When the first operating mode is switched from the second operating mode, the controller 325 may further send a signal for switching the operating mode to the electronic device 310 through the first wireless communication module 326, and the electronic device 310 switches the first touch mode to the second touch mode based on the signal, so as to match the operating mode of the capacitive stylus 320.

Based on the above, in the capacitive pen 320 and the electronic device assembly provided by the embodiment of the disclosure, the controller 325 turns on or off the conductive wall 322 and the conductive pen tip 323 through the control switch module 329 based on the electric quantity of the power module 328, so that the capacitive pen 320 realizes multiple working modes, such as a passive capacitive pen working mode, an active capacitive pen working mode, and a combined working mode of the passive capacitive pen and the active capacitive pen, and user experience is improved.

In some embodiments, the switch module 329 includes a power switch including a gate connected to the controller 325, a first pole connected to the conductive wall 322, and a second pole connected to the conductive nib 323. The controller 325 is used to control the power switch tube to turn on or off the conductive wall 322 and the conductive tip 323 based on the power of the power module 328.

Illustratively, the power switch tube is an N-type power switch tube. Exemplarily, referring to a circuit diagram of a P-type power switch tube shown in fig. 5 according to an exemplary embodiment of the present disclosure, the power switch tube Q is a P-type power switch tube. The P-type power switch is an n-type substrate, a P-channel MOS transistor that carries current by the flow of holes. The P-type power switch tube (PMOS) and the N-type power switch tube (NMOS) have similar structures, and the difference is the doping types of the substrate and the source and the drain. Specifically, the NMOS is an N-type doped region formed by selective doping on a P-type silicon substrate, and serves as a source/drain region of the NMOS. The PMOS is formed by selectively doping a P-type doped region on an N-type silicon substrate to serve as a source region and a drain region of the PMOS.

Taking a P-type power switch as an example, and continuing to refer to fig. 5, the P-type power switch (PMOS) includes a gate G, a source S and a drain D. When the controller 325 inputs a low level signal, such as 0V, to the gate G of the P-type power switch transistor, V is set to be V_GS<V_th(threshold voltage of the conductive channel), the source S and the drain D of the P-type power switch tube are conducted. When the controller 325 inputs a high level signal to the gate G of the P-type power switch tube, V is enabled_GS＞V_thAnd the source S and the drain D of the P-type power switch tube are disconnected.

The above embodiments of the present disclosure may be complementary to each other without conflict.

The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims

1. A capacitance stylus, comprising:

a pen container comprising a gripping area;

the conductive wall is arranged in the holding area;

the conductive pen point is arranged at one end of the pen container;

2. The stylus of claim 1, wherein the switch module comprises a power switch, the power switch comprising a grid, a first pole, and a second pole, the grid connected to the controller, the first pole connected to the conductive wall, the second pole connected to the conductive tip.

3. The capacitive pen according to claim 1, further comprising a signal transceiver connected to the controller, wherein the signal transceiver is disposed in the pen barrel and is located between the conductive wall and the conductive tip.

4. The capacitive pen of claim 1, further comprising a pressure sensor disposed in the pen barrel, the pressure sensor being connected to the conductive tip and the controller.

5. The capacitive pen according to claim 1, further comprising a gravity sensor disposed in the pen container, wherein the gravity sensor is connected to the controller.

6. The capacitive pen according to claim 1, further comprising a power module disposed in the pen container, wherein the power module is connected to the controller.

7. The capacitive pen according to claim 6, wherein the power module comprises a rechargeable battery, the capacitive pen further comprises a charging interface arranged on the pen container, and the charging interface is connected with the rechargeable battery.

8. The capacitive pen according to claim 1, further comprising a first wireless communication module disposed in the pen container, wherein the first wireless communication module is connected to the controller.

9. The capacitance pen according to any one of claims 1 to 8, wherein the conductive wall is in a ring structure and is sleeved on the holding area.

10. An electronic device assembly, comprising:

an electronic device comprising a touch screen; and

a capacitance pen as claimed in any one of claims 1 to 9.