CN112639693A

CN112639693A - Writing pen

Info

Publication number: CN112639693A
Application number: CN201880094158.6A
Authority: CN
Inventors: 秦涛; 高洋; 王朝纲
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2018-09-04
Filing date: 2018-09-04
Publication date: 2021-04-09
Also published as: WO2020047744A1

Abstract

A stylus (100) comprises a pen cap (10), a plurality of pen cores (20) arranged in the pen cap (10), a plurality of state detection units (41) corresponding to the pen cores (20) one by one, a wireless transmitting device (512) and a controller (511), wherein the state detection units (41) and the wireless transmitting device (512) are electrically connected to the controller (511), the state detection units (41) detect pressing states of the corresponding pen cores (20) and generate sensing signals when the corresponding pen cores (20) are pressed, and the controller (511) receives the sensing signals, identifies colors of the pressed pen cores (20) according to the sensing signals and controls the wireless transmitting device (512) to output pen core color signals corresponding to the colors of the pressed pen cores (20) to external equipment. The writing pen (100) can automatically identify the color of the pen core and is convenient to use.

Description

Writing pen

Technical Field

The application relates to the technical field of handwriting pens, in particular to a handwriting pen.

Background

If different writing colors need to be changed, the existing handwriting pen capable of writing real handwriting on paper needs to change pen cores with different colors, and external equipment equipped with the handwriting pen needs to manually select the color corresponding to the pen core on an application program, so that a user needs to operate the handwriting pen and the external equipment respectively, and the use is inconvenient.

Disclosure of Invention

The application provides a handwriting pen capable of automatically identifying the color of a pen core.

The embodiment of the application provides a handwriting pen. The handwriting pen comprises a pen sleeve and a plurality of pen cores arranged in the pen sleeve, and further comprises a plurality of state detection units, a wireless transmitting device and a controller, wherein the state detection units are in one-to-one correspondence with the pen cores, the wireless transmitting device is electrically connected to the controller, the state detection units detect the pressing state of the corresponding pen cores and generate induction signals when the corresponding pen cores are pressed, and the controller receives the induction signals, identifies the color of the pressed pen cores according to the induction signals and controls the wireless transmitting device to output pen core color signals corresponding to the color of the pressed pen cores to external equipment.

The writing pen provided by the embodiment of the application is additionally provided with the state detection unit, the state detection unit detects the pressing state of the corresponding pen core and generates a sensing signal when the corresponding pen core is pressed, the controller receives the sensing signal, identifies the color of the pressed pen core and controls the wireless transmitting device to output the pen core color signal corresponding to the color of the pressed pen core to the external equipment. Therefore, when a refill with any color in the refill sleeve is selected to be pressed, the currently pressed refill can trigger the state detection unit, so that the state detection unit sends a sensing signal to the controller, and the controller receives the sensing signal, identifies the color of the refill according to the sensing signal and controls the signal generator to output a refill color signal corresponding to the refill color to an external device. Therefore, the writing pen can be compatible with the pen cores with different colors, can automatically identify the colors of the pen cores, and is convenient to use.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic perspective view of a stylus pen according to a first embodiment of the present disclosure.

Fig. 2 is an assembled view of the stylus of fig. 1 with the cap omitted.

Fig. 3 is a schematic structural diagram of another visual pen of fig. 2.

Fig. 4 is a schematic perspective exploded view of the stylus of fig. 1.

Fig. 5 is a schematic perspective exploded view of the visual stylus of fig. 4.

Fig. 6 is a schematic perspective view of a pressure sensor of the stylus of fig. 4.

Fig. 7 is an assembly view of the pressure sensor of fig. 6 with the housing omitted.

Fig. 8 is a schematic perspective exploded view of the pressure sensor of fig. 6.

Fig. 9 is a sectional view of the pressure sensor of fig. 6 taken along line IX-IX.

FIG. 10 is a cross-sectional view of the stylus of FIG. 1 taken along line X-X.

Fig. 11 is an enlarged view of a portion I in fig. 10.

Fig. 12 is an enlarged view of a portion II in fig. 10.

Fig. 13 is a schematic perspective view of a stylus pen according to a second embodiment of the present application.

Fig. 14 is a schematic perspective exploded view of the stylus of fig. 13.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, and do not imply or indicate that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application.

Referring to fig. 1 to 5 together, fig. 1 is a diagram illustrating a stylus 100 according to a first embodiment of the present disclosure, fig. 2 is a diagram illustrating an assembly of the stylus 100 without a pen cap, fig. 3 is another diagram illustrating a view of the stylus 100 without a pen cap, fig. 4 is a diagram illustrating a three-dimensional exploded structure of the stylus 100, and fig. 5 is a diagram illustrating another view of the three-dimensional exploded structure of the stylus 100. The stylus 100 comprises a pen cap 10 and a plurality of pen cores 20 arranged in the pen cap 10, the stylus 100 further comprises a plurality of state detection units 41, a controller 511 and a wireless transmitting device 512, wherein the state detection units 41 and the wireless transmitting device 512 are in one-to-one correspondence with the plurality of pen cores, and the state detection units 41 and the wireless transmitting device 512 are electrically connected to the controller 511. The state detection unit 41 detects a pressed state of the corresponding pen core 20 and generates a sensing signal when the corresponding pen core 20 is pressed, and the controller 511 receives the sensing signal, identifies a color of the pressed pen core 20 according to the sensing signal and controls the wireless transmission device 512 to output a pen core color signal corresponding to the color of the pressed pen core 20 to an external device.

At least two pen cores 20 with different colors are arranged in the pen cap 10. In the present embodiment, the cap 10 is provided with 4 pen cores 20 of different colors at the same time. The 4 pen cores 20 with different colors respectively correspond to one state detection unit 41, and the 4 pen cores 20 with different colors can trigger the corresponding state detection units 41 after being pressed, and generate corresponding sensing signals. In the present embodiment, when using the stylus pen 100, the user can only press and select one of the pen cores 20. It can be understood that the pen cores 20 with different colors may generate different sensing signals after being pressed, so that the state detection unit 41 generates a sensing signal and sends a corresponding sensing signal to the controller 511 when the corresponding pen core 20 is pressed, and the controller 511 receives the corresponding sensing signal and identifies the color of the corresponding pen core 20 and controls the wireless transmission device 512 to output the corresponding pen core color signal to an external device. The state detection unit 41 is, for example, but not limited to, a push switch, a touch switch, or a pressure sensor. It is to be understood that, in this embodiment, the external device is a device having a display function. The controller 511 is configured to identify a color of the pressed pen core 20 according to a predefined correspondence between the sensing signal and the color of the pen core 20. The external equipment receives the pen core color signal output by the wireless transmitting device 512 and displays the corresponding pen core color and the handwriting of the pen core color. The wireless transmitting device 512 is a bluetooth radio frequency transmitter. In other embodiments, the wireless transmitting device 512 may also be a WIFI, ZIGBEE, or other radio frequency transmitter.

The pen cap 10 is provided with a first circuit board 51 therein. The controller 511 and the wireless transmitting device 512 are disposed on the first circuit board 51. Each pen core 20 includes a hollow pen core 21 and a pen tip 22 provided at an end of the pen core 21. The stylus pen 100 further includes a slide button 31 capable of contacting with the state detecting units 41, and the slide button 31 is disposed at an end of the stylus stem 21 away from the stylus tip 22 and corresponds to one of the state detecting units 41.

In the present embodiment, the stylus pen 100 is a capacitive pen. The pen cap 10 includes a pen body 11, and a pen point 12 and a pen tail 13 respectively disposed at two ends of the pen body 11. The pen head 12, the pen tail 13 and the pen body 11 can be connected through clamping, magnetic connection and the like. Specifically, in the present embodiment, the pen point 12 and the pen tail 13 are detachably connected to the pen body 11, for example, an internal thread is disposed at the head or the tail of the pen body 11, and an external thread corresponding to the internal thread is disposed on the pen point 12 and the pen tail 13, so as to facilitate assembly and maintenance of the stylus 100. In other embodiments, a plurality of fastening holes are formed around the head or tail of the pen body 11, and the pen head 12 or the pen tail 13 is provided with an elastic fastening hook corresponding to the fastening holes; or a magnet is arranged at the head or the tail of the pen body 11, and an iron sheet corresponding to the magnet is arranged on the pen head 12 or the pen tail 13.

In the present embodiment, the pen body 11 is a hollow cylindrical barrel. The pen body 11 is provided with a plurality of first sliding grooves 101 along the radial direction for the sliding buttons 31 to pass through. Specifically, the length direction of the first sliding groove 101 is parallel to the length direction of the pen body 11. The first chutes 101 are arranged side by side and at intervals. Two adjacent first chutes 101 are arranged in parallel. In the present embodiment, the number of the first chutes 101 is 4. It is understood that the number of the first chutes 101 may be designed according to the number of the required pen cores 20, and is not limited herein.

The end of the stylus stem 21 remote from the nib 22 snaps over the slide button 31. The nib 22 is housed in the nib 12 and partially exposed from the nib 12, and the nib 12 has a pen hole 102 for passing a pen core 20 along an axial direction. In the present embodiment, the number of pen cores 20 is 4. It can be understood that the number of the pen cores 20 can be designed according to actual needs, and is not limited herein. Preferably, each cartridge 20 represents a color.

Referring to fig. 4 and 5 again, in the present embodiment, 4 slide buttons 31 are provided in the pen cap 10. Each slide button 31 is correspondingly connected with a pen core 20. It is understood that the number of the slide buttons 31 may be designed according to the number of the required pen cores 20, and is not limited herein. The slide button 31 has a strip-shaped structure. Each slide button 31 includes a dial 311 and a guide post 312 inserted into the pen holder 21. The toggle block 311 is accommodated in the first sliding slot 101 and exposed out of the pen cap 10. Specifically, the toggle block 311 is vertically disposed on the outer side surface of the top of the slide button 31, and the guide column 312 is disposed at the bottom of the slide button 31.

Furthermore, a first guiding block 313 and a second guiding block 314 are disposed on the inner side surface of the top of each sliding button 31, and a evasion gap 315 is formed between the first guiding block 313 and the second guiding block 314. The first guide slider 313 is disposed on the top of the inner side of the slide button 31, and the second guide slider 314 is disposed at the middle of the inner side or near the guide post 312 away from the top of the slide button 31. The first and second slider guides 313 and 314 have a substantially conical configuration. One side of the second guide slider 314 close to the guide post 312 is provided with a first guide sliding surface 3141 and a second guide sliding surface 3142 which are inclined, and the first guide sliding surface 3141 and the second guide sliding surface 3142 are connected through a flat transition surface 3143, that is, the first guide sliding surface 3141, the second guide sliding surface 3142 and the transition surface 3143 form a step surface. The second guiding sliding blocks 314 of each sliding button 31 are arranged side by side and abutted with each other in pairs, so that a clamping groove 316 matched with the first guiding sliding block 313 is formed on one side far away from the first guiding sliding block 313 in an enclosing manner.

It is understood that in this embodiment, the first runner 101 has opposite first and

second ends

1011, 1012. It can be understood that the first end 1011 of the first sliding chute 101 is the end (i.e. the top end) of the first sliding chute 101 away from the pen tip 12, and the second end 1012 of the first sliding chute 101 is the end (i.e. the bottom end) of the first sliding chute 101 close to the pen tip 12. When the pen point 22 of the pen core 20 is in an unstressed state, a gap D1 exists between the toggle block 311 of the slide button 31 and the first end 1011 of the first sliding chute 101. When the pen point 22 of the pen core 20 is in a stressed state, the toggle block 311 of the slide button 31 abuts against the first end 1011 of the first sliding chute 101.

Referring to fig. 1 to 5 again, optionally, the state detecting unit 41 is perpendicular to the toggle block 311 of the slide button 31. In the present embodiment, the state detection unit 41 is disposed at the second end 1012 of the first chute 101 and exposed to the first chute 101. When the dial 311 of the slide button 31 is located at the first position E1, that is, the pen core 20 is not pressed, the dial 311 is not in contact with the state detecting unit 41, the pen tip 22 of the pen core 20 is accommodated in the pen cap 10, and an application program (such as an APP program) on the external device displays a preset writing color. In this embodiment, the preset handwriting color is black, so that it is ensured that the color can be displayed when writing on an external device by using another handwriting pen. When the slide button 31 slides from the first position E1 of the first sliding slot 101 to the second position E2, that is, the pen core 20 is pressed, the toggle block 311 of the slide button 31 presses the state detection unit 41, and the pen point 22 of one pen core 20 extends out of the pen cap 10. The state detection unit 41 detects a pressed state of the corresponding pen core 20 and generates a sensing signal when the corresponding pen core 20 is pressed, and the controller 511 receives the sensing signal, identifies the color of the pressed pen core 20 according to the sensing signal and controls the wireless transmission device 512 to output a pen core color signal corresponding to the color of the pressed pen core 20 to an external device. It is understood that the first position E1 refers to an initial position where the dial 311 is not pressed, i.e. a position near the first end 1011 of the first sliding slot 101, and the second position E2 refers to a position where the dial 311 is pressed, i.e. a position near the second end 1012 of the first sliding slot 101.

In the present embodiment, the pen body 11 is further provided with a refill holder 32 and a plurality of springs 33. The refill seat 32 is sleeved on all the refills 20. Each spring 33 is sleeved on each pen core rod 21 and clamped between the corresponding slide button 31 and the pen core seat 32, so that the pen core 20 moves in the pen sleeve 10.

In the present embodiment, the cartridge holder 32 is provided with a plurality of through holes 321 through which the pen core 20 passes (see fig. 12). The inner wall of each through hole 321 of the cartridge holder 32 near the slide button 31 is provided with a flange 322 (see fig. 12) for holding the spring 33. Optionally, in an embodiment, the core holder 32 is disposed at a connection position of the pen body 11 and the pen point 12 of the pen cap 10, and is clamped and fixed by the pen body 11 and the pen point 12 of the pen cap 10. It will be appreciated that in another embodiment, the cartridge holder 32 is slidably disposed within the body 11 of the pen cap 10. The inner diameter of the spring 33 is greater than or equal to the diameter of the shaft 21 of the cartridge 20 so that the spring 33 can be fitted over the cartridge 20. The outer diameter of the spring 33 is larger than the diameter of the lower part of the through hole 321 at the flange 322 (i.e. the end of the through hole 321 close to the pen point 12) so as to realize that the spring 33 is clamped between the slide button 31 and the refill seat 32. The outer diameter of the spring 33 is smaller than the diameter of the part of the through hole 321 above the flange 322 (i.e. the end of the through hole 321 away from the pen head 12), so that the through hole 321 receives the spring 33.

The pen cap 10 is also provided with a second circuit board 52, a sliding sleeve 60, a pressure sensor 70 electrically connected with the pen core 20 and a battery 80. Specifically, in the present embodiment, the second circuit board 52 is electrically connected to the first circuit board 51, the state detection unit 41 is fixed to the second circuit board 52, and the second circuit board 52 is fixed to the sliding sleeve 60. The sliding sleeve 60 is movably connected with the pen cap 10 through the toggle block 311 of the sliding button 31.

The sliding sleeve 60 is provided with a second sliding slot 601 corresponding to the first sliding slot 101, and the toggle block 311 of the sliding button 31 sequentially passes through the first sliding slot 101 and the second sliding slot 601 and is exposed out of the pen body 11. The state detection unit 41 is exposed to the first and

second slide grooves

101 and 601, and is in direct opposition to the paddle 311 of the slide button 31. Specifically, the second runner 601 has opposite first and

second ends

6011, 6012. The state detecting unit 41 is disposed on the sliding sleeve 60 near the second end 6012 of the second sliding chute 601, and when the sliding button 31 slides from the first position E1 to the second position E2, the toggle block 311 of the sliding button 31 abuts against the state detecting unit 41, that is, the toggle block 311 contacts with the state detecting unit 41.

The second circuit board 52 is disposed on the inner wall of the sliding sleeve 60 near the second end 6012 of the second sliding chute 601, so that the state detection unit 41 is exposed to the first sliding chute 101 and the second sliding chute 601. The state detecting units 41 are disposed on the second circuit board 52 at intervals. Specifically, each state detection unit 41 is soldered on the second circuit board 52, and is electrically connected to the first circuit board 51 through a wire. The second circuit board 52 is substantially annular. Each state detection unit 41 is in direct opposition to the paddle 311 of the corresponding slide button 31.

Further, in the present embodiment, a substantially semi-cylindrical snap-in portion 602 is disposed at an end of the sliding sleeve 60 facing away from the pen tip 12. An electrical connection rod 603 electrically connected to the pressure sensor 70 is provided at a free end of the snap-in portion 602 in a protruding manner along a longitudinal direction of the stylus pen 100. The inner wall of the clamping portion 602 of the sliding sleeve 60 is provided with a positioning column 604 matched with the positioning hole 501 of the first circuit board 51, and the first circuit board 51 is connected to the sliding sleeve 60 through the insertion connection of the positioning hole 501 and the positioning column 604. The sliding sleeve 60 is made of an electrically conductive material. The conductive material is, for example, but not limited to, brass. The inner wall of the sliding sleeve 60 is provided with a baffle 605 (shown in fig. 11) at a position adjacent to the first end 6011 of the second chute 601. The baffle 605 is of an annular or circular configuration. In other embodiments, the stop 605 may also be an arc-shaped block. The shutter 605 abuts against the first guide block 313 corresponding to the pen core 20 which is not pressed.

In the present embodiment, the sliding sleeve 60 is movably connected to the cap 10 through the toggle block 311 of the slide button 31, and the first guide slider 313 of the slide button 31 corresponding to the pressed pen core 20 is engaged with the catch 316 to cause the sliding sleeve 60 to be linked with the pen core 20, and a specific linkage manner will be described in detail later.

Stylus 100 also includes a pressure sensor 70. The pressure sensor 70 is electrically connected to the controller 511 and movably connected to the sliding sleeve 60. The electrical connection rod 603 of the sliding sleeve 60 may interfere with the pressure sensor 70. The pressure sensor 70 sends a pressure-sensitive signal to the controller 511. The controller 511 receives the pressure-sensitive signal and controls the wireless transmitting device 512 to transmit the pressure-sensitive signal to the external device.

Specifically, the pen core 20 and the slide button 31 are partially accommodated in the slide case 60, and the pen core holder 32 and the spring 33 are also accommodated in the slide case 60. The end of the writing core rod 21 of the writing core 20 away from the writing tip 22 is connected to the guide column 312 of the slide button 31. When the dial 311 of the slide button 31 is located at the first position E1, the nib 22 of the pen core 20 passes through the spring 33 and the pen core holder 32 in sequence and is accommodated in the pen head 12. When one of the slide buttons 31 is pressed, that is, when the toggle block 311 of the slide button 31 is located at the second position E2, the first guide slider 313 of the pressed slide button 31 is engaged with the engaging groove 316, and the pen point 22 of the pen core 20 is exposed from the pen point 12. The toggle block 311 of the slide button 31 passes through the second sliding slot 601 of the sliding sleeve 60 to expose the sliding sleeve 60. When the pen point 22 of the pen core 20 is in an unstressed state, the top end part of the first guide sliding block 313 of the other non-pressed sliding button 31 abuts against the baffle 605 on the inner wall of the sliding sleeve 60, and a gap D1 exists between the toggle block 311 of the sliding button 31 and the first end 1011 of the first sliding chute 101. When the pen point 22 of the pen core 20 is in a stressed state (i.e. writing with the pen point 22), the pen point 22 of the pen core 20 is subjected to an upward reverse acting force, so that the first guide slider 313 of the pressed slide button 31 abuts against the slot 316 to stress the second guide sliders 314 of the other non-pressed slide buttons 31, and then the first guide sliders 313 of the other non-pressed slide buttons 31 abut against the baffle 605 to drive the sliding sleeve 60 to move upwards integrally to enable the electric connecting rod 603 of the sliding sleeve 60 to trigger the pressure sensor 70, and at this time, the toggle blocks 311 of the other non-pressed slide buttons 31 abut against the first end 1011 of the first sliding chute 101. It is understood that, in the present embodiment, the first end 1011 of the first chute 101 and the first end 6011 of the second chute 601 are located on different horizontal lines in a state where the pen tip 22 is stressed. The first end 1011 of the first sliding chute 101 and the first end 6011 of the second sliding chute 601 are located on the same horizontal line in a state where the pen tip 22 is not stressed.

Referring to fig. 6 to 10, in the present embodiment, the pressure sensor 70 includes a housing 71, a metal electrode 72 fixedly disposed on the housing 71, an electrical connector 78 movably disposed on the housing 71, a dielectric layer 73 disposed between the metal electrode 72 and the electrical connector 78, a conductive rubber 74, a first conductive spring 75, a piston 76, and a second conductive spring 77. Specifically, the dielectric layer 73 is disposed between the metal electrode 72 and the conductive rubber 74. The piston 76 is movably disposed in the housing 71 and movably connected to the electrical connection rod 603 of the sliding sleeve 60 through the electrical connection member 78, so that both the piston 76 and the electrical connection member 78 can be linked with the pen core 20. When stylus 100 is not in use, plunger 76 and electrical connection 78 are in a first position, at which point conductive rubber 74 is in contact with dielectric layer 73.

As shown in fig. 7, the housing 71 is of a generally hollow cylindrical structure. The side wall of the end of the housing 71 is opened with two opposite openings 711 through which the metal electrodes 72 pass. The metal electrode 72 is fixed to the case 71. It will be appreciated that the metal electrode 72 may be removably secured to the end of the housing 71 remote from the piston 76 by a snap-fit arrangement. Specifically, in the present embodiment, the corresponding latch 712 protrudes from the outer wall of the housing 71 near each opening 711. The free ends of the metal electrode 72 are provided with latch holes 721 matched with the latches 712. It is understood that in other embodiments, the outer wall of the housing 71 near each opening 711 is provided with a corresponding slot. Two free ends of the metal electrode 72 are convexly provided with clamping blocks matched with the clamping grooves. In the present embodiment, the metal electrode 72 may have a sheet structure. The middle portion of the metal electrode 72 is provided with a pin 722 electrically connected to the controller 511.

Further, the piston 76 is movably accommodated in the housing 71, two opposite limiting sliding grooves 713 are formed in a side wall of the housing 71, and two limiting sliders 761 penetrating through the limiting sliding grooves 713 of the housing 71 are disposed on the side wall of the piston 76 to limit the piston 76 to slide in the limiting sliding grooves 713.

The dielectric layer 73 is sandwiched between the metal electrode 72 and the conductive rubber 74 and fixed with respect to the housing 71. Specifically, as shown in fig. 6 to 9, the inner wall of the housing 71 is provided with a flange 714 that holds the dielectric layer 73, and the dielectric layer 73 abuts against the flange 714 and is fixedly disposed in the housing 71, and abuts against the metal electrode 72. The metal electrode 72 is fixedly provided at one end of the case 71 together with the dielectric layer 73.

The conductive rubber 74 is connected to the piston 76, and both the conductive rubber 74 and the metal electrode 72 are electrically connected to the controller 511 of the first circuit board 51. The conductive rubber 74 includes a stopper 741 and a connection portion 742 extending from the middle of the stopper 741 in the longitudinal direction of the stylus pen 100. Piston 76 has opposing first and second end faces 7601 and 7602. The first end surface 7601 of the piston 76 is a surface adjacent to the conductive rubber 74, and the second end surface 7602 of the piston 76 is a surface adjacent to the electrical connector 78. The first end 7601 of the piston 76 is provided with two opposing protrusions 762, and the two protrusions 762 together define a receiving groove 763 for receiving the connecting portion 742 of the conductive rubber 74. The limiting part 741 of the conductive rubber 74 abuts against the inner side surface of the bump 762 and is clamped in the containing groove 763 of the piston 76.

It will be appreciated that the end of the conductive rubber 74 adjacent the piston 76 may have any suitable shape or configuration, with the end of the conductive rubber 74 in contact with the dielectric layer 73 being generally conical. When the piston 76 is moved toward the metal electrode 72 by the pressure, the conductive rubber 74 is compressed and deformed, and the contact area of the conductive rubber 74 with respect to the dielectric layer 73 is changed, so that the capacitance of the variable capacitance element of the pressure sensor 70 is changed.

Specifically, as shown in fig. 9, when the piston 76 is in the first position (i.e., when the pen tip 22 is not under any external pressure), the limit slider 761 is located at the lower end of the limit chute 713 and is stopped by the lower end surface of the limit chute 713. When the pen tip 22 is operated on an external device, the pen tip 22 is subjected to upward reverse pressure, so that the sliding sleeve 60 moves upwards integrally to enable the electric connecting rod 603 of the sliding sleeve 60 to trigger the electric connecting piece 78 of the pressure sensor 70, the electric connecting piece 78 moves upwards to apply upward pressure to the piston 76, and at the moment, the piston 76 presses the conductive rubber 74 towards the metal electrode 72, the contact area between the conductive rubber 74 and the dielectric layer 73 is increased, and the capacitance of the variable capacitance component of the pressure sensor 70 is changed. The material of the piston 76 may be an insulating material, the main body of the dielectric layer 73 may be a ceramic material, and the surface of the dielectric layer 73 contacting the conductive rubber 74 is coated with a conductive coating, but the material of the main body of the dielectric layer 73 is not limited thereto.

The first conductive spring 75 is disposed on the protrusion 762 and movably disposed between the flange 714 of the housing 71 and the piston 76, i.e. the first conductive spring 75 abuts against the first end surface 7601 of the piston 76. One end of the first conductive spring 75 is sandwiched between the conductive rubber 74 and the piston 76, and the other end (i.e., the pin 751) of the first conductive spring 75 passes through the dielectric layer 73 and the metal electrode 72 in sequence and is electrically connected to the controller 511 of the first circuit board 50. Here, the first conductive spring 75 serves as an electrical connection member between the conductive rubber 74 and the controller 511, and the conductive rubber 74 may be electrically connected to the controller 511 by any other suitable means, but is not limited thereto.

The second end surface 7602 of the piston 76 is axially provided with a receiving groove 764 for receiving the electrical connector 78. The electrical connector 78 includes a first connection portion 781 connecting the piston 76 and a second connection portion 782 connecting the first connection portion 781 and the sliding sleeve 60. One end of the first connecting portion 781 away from the second connecting portion 782 is axially and convexly provided with a connecting column 7811 matched with the accommodating groove 764 of the piston 76. Optionally, a positioning groove 7812 is provided on the free end surface of the connecting column 7811, and a positioning protrusion 7641 matching with the positioning groove 7812 is provided in the receiving groove 764 of the piston 76, so as to facilitate the assembly of the electrical connector 78 and the piston 76. In this embodiment, the first connection portion 781 is integrally formed with the second connection portion 782. In other embodiments, the first connection portion 781 is detachably connected to the second connection portion 782. The second connecting portion 782 is axially formed with a recess 7821 that is engaged with the electrical connecting rod 603 of the sliding sleeve 60.

It can be understood that when the pen point 22 of the pen core 20 is in an unstressed state, the electric connecting rod 603 forms a gap D2 with the groove bottom of the groove 7821; when the pen point 22 of the pen core 20 is in a stressed state, the electric connecting rod 603 abuts against the groove bottom of the groove 7821.

The second conductive spring 77 is sandwiched between the housing 71 and the electrical connection member 78. Specifically, the second conductive spring 77 is sleeved on the first connection portion 781 of the electrical connection member 78 and abuts against the limit portion 783 of the electrical connection member 78. The second conductive spring 77 is sleeved on the electrical connector 78, one end of the second conductive spring 77 is connected to the electrical connector 78, and the other end of the second conductive spring 77 is connected to the controller 511 arranged on the first circuit board 51, so that the pen tip 22 is electrically connected with the controller 511 through the electrical connector 78 and the second conductive spring 77 in sequence, and the pressure sensing signal processed by the controller 511 is sent to the pen tip 22. In this embodiment, the second conductive spring 77 is provided with two

pins

771, 772, one of which 771 is electrically connected to the controller 511, and the other of which 772 is electrically connected to the battery 80.

In the present embodiment, the battery 80 is connected to one end of the first circuit board 51 far from the pen point 12 of the pen cap 10 through an electrical connection sheet 81. Specifically, the electrical connection tab 81 has opposite first and second ends 811 and 812. The first end of the electrical connection sheet 81 is connected to the battery 80, and the second end 812 of the electrical connection sheet 81 has a barb shape. The second end 812 of the electrical connection sheet 81 is fixed on the first circuit board 51 and electrically connected to the first circuit board 51.

It will be appreciated that in this embodiment, the linkage of the plunger 76 and the nib 22 may be achieved in a variety of ways. For example, in the present embodiment, the piston 76 is indirectly connected to the pen tip 22 through another member. As shown in fig. 10, pen core 20 of stylus 100 is connected to piston 76 by sliding sleeve 60 and electrical connector 78.

Referring to fig. 1 to 12, during assembly, the pen tips 22 of all the pen cores 20 sequentially pass through the through holes 321 of the spring 33 and the pen core holder 32, the slide button 31 is inserted into one end of each pen core rod 21 away from the pen tip 22, and the toggle block 311 of the slide button 31 passes through the second sliding slot 601 of the sliding sleeve 60 to expose the sliding sleeve 60. The state detecting unit 41 may be welded on the inner wall of the sliding sleeve 60 in advance. Specifically, each state detecting unit 41 is disposed at an edge of the sliding sleeve 60 near the second end 6011 of the second sliding slot 601, so that each state detecting unit 41 is exposed to the corresponding second sliding slot 601 and directly faces each sliding button 31. The piston 76 is sleeved on the housing 71, that is, the two limit sliders 761 of the piston 76 are respectively clamped in the limit sliding groove 713 of the housing 71. The connection portion 742 of the conductive rubber 74 passes through the first conductive spring 75 and is received in the receiving groove 763 of the piston 76, and the pin 751 of the first conductive spring 75 is electrically connected to the controller 511 of the first circuit board 51. A dielectric layer 73 is mounted to the end of the housing 71 adjacent the conductive rubber 74. At this time, the dielectric layer 73 is in contact with the flange 714 of the housing 71 and is electrically connected to the stopper 741 of the conductive rubber 74. The metal electrode 72 is inserted through the opening of the housing 71 and sleeved on the housing 71, that is, the engaging hole 721 of the metal electrode 72 is engaged with the engaging block 712 of the housing 71. The first connection portion 781 of the electrical connection member 78 is inserted through the second conductive spring 77 and into the accommodation groove 764 of the piston 76. One of the pins 771 of the second electrically conductive spring 77 is electrically connected to the controller 511 of the first circuit board 51, and the other pin 772 of the second electrically conductive spring 77 is electrically connected to the battery 80. The electrical connection rod 603 of the sliding sleeve 60 is inserted into the second groove 7821 of the second connection portion 782 of the electrical connection member 78, and the positioning hole 501 of the first circuit board 51 is fitted with the positioning post 604 of the sliding sleeve 60. The pen body 11 is sleeved with the first circuit board 51, the sliding sleeve 60 and the pressure sensor 70, so that the sliding button 31 passes through the first sliding slot 101 of the pen body 10 to expose the pen cap 10. The battery 80 is placed in one end of the pen body 11 far away from the pen point 22, and the pen tail 13 is fixedly connected to the pen body 10, so that the pen tail 13 presses against the battery 80, and the battery 80 is electrically connected to the first circuit board 51 through the electric connection sheet 81 to provide electric quantity for the first circuit board 51. The pen head 12 is fixedly connected with the other end of the pen body 11.

When the pen is used, one of the slide buttons 31 is pressed down, so that the pen core 20 clamped by the slide button 31 penetrates out of the pen point 12. At this time, the slide button 31 presses the state detection unit 41 disposed below the slide button 31, the controller 511 generates a control signal corresponding to the color of the pen core 20 according to the contact state between the currently operated slide button 31 and the state detection unit 41, and controls the wireless transmission device 512 disposed on the first circuit board 51 to transmit the control signal, and after receiving the control signal, external devices such as a mobile phone, a computer, a handwriting device, and an intelligent wearable device calculate the color of the pen core 20 currently pressed by the handwriting pen 100 through a program, and display the color on the external devices for the user to view. Optionally, when the slide button 31 rebounds, that is, the pen tip 22 is received in the pen head 12, the color displayed on the touch screen of the external device is default to black, so as to ensure that the correct color can be displayed when writing with other writing pens.

Further, when the user uses the stylus pen 100 to write, i.e., the pen tip 22 is under a force, the pen tip 22 bears a counter pressure of a touch screen (not shown) when contacting the touch screen of an external device. The upward counter-pressure applied to the pen tip 22 moves the sliding sleeve 60 upward as a whole, thereby causing the electrical connection rod 603 of the sliding sleeve 60 to trigger the pressure sensor 70. At this time, the toggle block 311 of the slide button 31 abuts against the first end 1011 of the first sliding chute 101, so as to prevent the pen tip 22 from being over-stressed to damage the pressure sensor 70. The pressure sensor 70 is used for detecting the reverse pressure applied to the pen tip 22 from the touch screen and generating a pressure-sensitive signal, and the controller 511 processes the pressure-sensitive signal and controls the wireless transmitting device 512 to transmit the pressure-sensitive signal to an external device. In the present embodiment, the pressure-sensitive signal processed by the controller 511 is transmitted to the pen tip 22, and then transmitted to the touch screen through the pen tip 22, so that the touch screen changes the display result according to the pressure applied by the pen tip 22, for example, changes the thickness of the handwriting. In a specific implementation, the pressure-sensitive signal processed by the controller 511 may also be sent to a touch screen with a bluetooth function through a built-in wireless transmitting device 512, such as a bluetooth module, and is not limited thereto.

Referring to fig. 6 to 9 again, since the piston 76 is linked with the pen tip 22 through the sliding sleeve 60, when the stylus pen 100 is used for writing, the pressure of the touch screen of the external device on the pen tip 22 is transmitted to the piston 76 through the electrical connecting rod 603 and the electrical connecting member 78 of the sliding sleeve 60, so that the piston 76 moves toward the metal electrode 72, the conductive rubber 74 is compressed and deformed, the contact area with the dielectric layer 73 is changed, the capacitance of the variable capacitance component formed by the conductive rubber 74, the dielectric layer 73 and the metal electrode 72 is changed, and the magnitude of the capacitance corresponds to the compression deformation magnitude of the conductive rubber 74, so that the magnitude of the capacitance can reflect the magnitude of the pressure applied to the pen tip 22. That is, the pressure sensor 70 senses the pressure to generate a pressure sensing signal, which is the change information of the capacitance of the variable capacitance element in the pressure sensor 70, and the controller 511 electrically connected to the pressure sensor 70 processes the change information of the capacitance of the variable capacitance element to obtain the pressure applied to the pen tip 22.

In the present embodiment, when the piston 76 is in the first position, i.e. the pen tip 22 is not under any external pressure, the slide button 31 forms a predetermined distance with the first end 1011 of the first runner 101, and the electrical connection rod 603 of the slide sleeve 60 does not abut against the groove bottom of the second recess 7821 of the electrical connection member 78. When the pen tip 22 is forced, the pen tip 22 is forced by a reverse pressure (i.e. a force in the direction of the pen tail 13), and the slide button 31 drives the slide sleeve 60 to move towards the side away from the pen tip 22. In this case, the conductive connecting rod 603 of the sliding sleeve 70 abuts against the electrical connecting member 78, so that the limit slider 761 of the piston 76 slides toward the top end of the limit chute 713 of the housing 71, and both the first conductive spring 75 and the second conductive spring 77 are compressed. When the pen tip 22 is not stressed, the first conductive spring 75 and the second conductive spring 77 are deformed again, and the first circuit board 51, the controller 511, the pressure sensor 70 and the like are not operated, thereby saving power.

Referring to fig. 13 and 14, fig. 13 and 14 are schematic perspective views of a stylus pen according to a second embodiment of the present application. The structure of the stylus pen 200 provided in the second embodiment is similar to that of the stylus pen 100 provided in the first embodiment, so that the dimensions, names, positional relationships, and the like of the elements included in the stylus pen 200 can be referred to the stylus pen 100, and the description thereof is omitted. The difference is that in the second embodiment, the state detection unit 41a of the stylus pen 200 is disposed at the first end 1011 of the first chute 101 (i.e., the end away from the pen tip 22) and exposed to the first chute 101.

Specifically, when the toggle piece 311a of the slide button 31a is located at the first position E1 of the first sliding chute 101, the toggle piece 311a is pressed against the state detection unit 41 a; when the slide button 31a slides from the first position E1 of the first link 101 to the first position E2, the slide button 31a does not contact the state detecting unit 41 a.

It can be understood that when the slide button 31a is located at the first position E1, that is, the pen tip 22 of the pen core 20 is accommodated in the pen tip 12, at this time, the toggle block 311a of the slide button 31a abuts against the state detection unit 41a, and an application program (such as an APP program) on the external device displays a preset handwriting color. In this embodiment, the preset handwriting color is black, so that it is ensured that the correct color can be displayed when writing on an external device by using another handwriting pen. When the slide button 31a is located at the second position E2, that is, the pen tip 22 of one pen core 20 is exposed out of the pen point 12, at this time, the toggle block 311a of the slide button 31a is not in contact with the state detection unit 41a, the state detection unit 41 generates a sensing signal according to the color of the pen core 20 corresponding to the pen tip 22 exposed out of the pen point 12, the controller 511 receives the sensing signal, identifies the currently selected color of the pen core 20 according to the sensing signal, and controls the wireless transmission device 512 to output a pen core color signal corresponding to the color of the pen core 20 to an external device. Specifically, the controller 511 generates a control signal corresponding to the color of the pen core 20 by a non-pressure state between the slide button 31a and the state detecting unit 41a according to the current operation, and controls the wireless transmitting device 512 provided on the first circuit board 51 to transmit the corresponding control signal to the external device.

The writing pen provided by the embodiment of the application is additionally provided with the state detection unit, the state detection unit detects the pressing state of the corresponding pen core and generates a sensing signal when the corresponding pen core is pressed, the controller receives the sensing signal and identifies the color of the pressed pen core according to the sensing signal and controls the wireless transmitting device to output the pen core color signal corresponding to the color of the pressed pen core to external equipment. Therefore, when a refill with any color in the pen sleeve is pressed, the current refill can trigger the state detection unit, so that the state detection unit sends a sensing signal to the controller, the controller receives the sensing signal, recognizes the color of the refill according to the sensing signal and controls the signal generator to output a refill color signal corresponding to the refill color to external equipment. Therefore, the writing pen can be compatible with the pen cores with different colors, can automatically identify the colors of the pen cores, and is convenient to use. In addition, the external equipment can obtain the color corresponding to the pen core through program calculation, so that the use of the stylus pen is more intelligent, and the user experience is improved.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present application and not for limiting, and although the present application is described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.

Claims

A stylus comprises a pen sleeve and a plurality of pen cores arranged in the pen sleeve and is characterized by further comprising a plurality of state detection units, wireless transmitting devices and a controller, wherein the state detection units are in one-to-one correspondence with the pen cores, the wireless transmitting devices are electrically connected to the controller, each state detection unit detects the pressing state of the corresponding pen core and generates a sensing signal when the corresponding pen core is pressed, and the controller receives the sensing signal, identifies the color of the pressed pen core according to the sensing signal and controls the wireless transmitting devices to output a pen core color signal corresponding to the color of the pressed pen core to external equipment.
The stylus according to claim 1, wherein the controller is configured to identify a color of the pressed cartridge based on a predefined correspondence of the sensing signal to the color of the cartridge.
The stylus according to claim 1, wherein the state detection unit is a push switch, a touch switch, or a pressure sensor.
The stylus according to claim 1, wherein each of the pen cores comprises a pen core and a pen tip disposed at one end of the pen core, the stylus further comprises a plurality of slide buttons capable of contacting with the state detection units, and each of the slide buttons is disposed at the other end of the pen core and corresponds to one of the state detection units.
The stylus pen of claim 4, wherein the slide button comprises a toggle block and a guide post inserted into the stylus stem, the pen cap defines a first sliding slot for the toggle block to pass through, and the toggle block is received in the first sliding slot and exposed from the pen cap.
The stylus of claim 5, wherein the state detection unit is perpendicular to a dial block of the slider.
The stylus according to claim 5, wherein the first sliding slot has a first end and a second end opposite to each other, and when a tip of the pen core is in an unstressed state, a first gap exists between the toggle block and the first end of the first sliding slot; when the pen point of the pen core is in a stressed state, the poking block abuts against the first end.
The stylus pen according to claim 7, wherein the state detection unit is disposed at a first end of the first sliding groove and exposed to the first sliding groove, and when the pen core is not pressed, the toggle block abuts against the state detection unit; when the pen core is pressed, the poking block is not in contact with the state detection unit.
The stylus pen according to claim 7, wherein the state detection unit is disposed at a second end of the first sliding groove and exposed to the first sliding groove, and when the pen core is not pressed, the dial block is not in contact with the state detection unit; when the pen core is pressed, the poking block is pressed against the state detection unit.
The stylus pen of claim 4, wherein a first circuit board is disposed within the pen cap, and the controller and the wireless transmitting device are disposed on the first circuit board.
The stylus pen of claim 10, wherein a second circuit board electrically connected to the first circuit board is further disposed within the pen case, and the state detection unit is disposed on the second circuit board.
The stylus of claim 11, wherein a sliding sleeve is further disposed within the pen sleeve, the second circuit board being disposed on the sliding sleeve.
The stylus of claim 12, wherein the sliding sleeve is movably coupled to the pen cover via a toggle block of the slide button.
The stylus pen of claim 12, wherein the sliding sleeve defines a second sliding slot corresponding to the first sliding slot, and the sliding button sequentially passes through the first sliding slot and the second sliding slot to expose the pen sleeve.
The stylus pen according to claim 12, wherein a positioning column is disposed on an inner wall of the sliding sleeve, the first circuit board is provided with a positioning hole matched with the positioning column, and the first circuit board is connected to the sliding sleeve through the positioning hole and the positioning column.
The stylus pen of claim 12, wherein a first guide slider and a second guide slider are further disposed on a side of each of the slide buttons facing away from the dial block, and the second guide sliders of each of the slide buttons are disposed side by side and abut against each other in pairs to form a slot matching with the first guide slider on a side facing away from the first guide slider.
The stylus according to claim 16, wherein a stopper is provided on an inner wall of the sliding sleeve at a tip end adjacent to the second sliding groove, the stopper stopping against the first guide block corresponding to the cartridge which is not pressed.
The writing pen according to claim 17, wherein the first guide slider corresponding to the pressed pen core is engaged with the engaging groove so that the sliding sleeve is interlocked with the pen core.
The stylus of claim 12, further comprising a pressure sensor electrically connected to the controller, wherein when the tip of the pen core is in a stressed state, the sliding sleeve abuts against the pressure sensor to enable the pressure sensor to generate a pressure sensing signal.
The stylus according to claim 19, wherein the sliding sleeve is provided with an electrical connection rod, the electrical connection rod may abut against the pressure sensor when the nib of the cartridge is in a stressed state, the pressure sensor sends a signal to the controller, and the controller receives the signal and controls the wireless transmitting device to send the signal to an external device.