TW201439822A - Dual induction pen type input device - Google Patents

Abstract

The present invention relates to a dual induction pen type input device having a pen-shaped housing. A metal shaft rod, an electromagnetic induction module, at least one power supply coil and a pressure sensor module are mounted in the housing respectively. An end of the metal shaft rod is connected to a refill, and the refill protrudes out of the housing. When the refill is pressed such that the metal shaft rod moves in a first route, the at least one power supply coil starts to charge and supply power, and the electromagnetic induction module is actuated to produce a brush stroke. When the refill is further pressed and a movement range goes beyond the first route, the metal shaft rod actuates the pressure sensor module and a thickness of the brush stroke is determined based on the pressure sensed by the pressure sensor module. By the above technical feature, a user can completely control change of the thickness of the brush stroke within a relatively short route.

Description

Double induction pen type input device

The invention relates to a dual induction pen type input device, in particular to a pen type input device which integrates electromagnetic induction and pressure sensing technology to control the thickness of a stroke.

Due to the interest of hand-written tablets and tablets with a stylus function, pen-type input devices commonly known as digital pens are becoming more and more widely used.

A known inductive pen type input device is shown in FIG. 9 , which is mainly provided with a tube member 701 in a one-piece housing 70. The tube member 701 is provided with a first power supply coil 71 from bottom to top. a second power supply coil 72, an induction coil 73 and an elastic element 75; the first power supply coil 71, the second power supply coil 72 and the induction coil 73 are respectively formed with through holes extending in the axial direction, and a mandrel is commonly worn therebetween The rod 74 has a core 741 formed at one end of the refill shaft 74 and passing through one end of the outer casing 70. The other end of the refill shaft 74 is provided with a core portion 742, and the core portion 742 corresponds to Induction coil 73. Furthermore, the elastic member 75 is attached to the bottom of the tubular member 701 and is abutted against the other end portion of the refill shaft 74.

When the digital pen approaches the tablet, the first and second power feeding coils 71, 72 respectively sense the electromagnetic signal, and convert it into a DC power supply to the induction coil 72; and when the digital pen is at the end of the refill shaft 74 Core 741 When contacting the surface of the tablet, the refill shaft 74 is retracted by the reaction force, thereby changing the relative position of the core portion 742 and the induction coil 73 disposed at the other end of the refill shaft 74, so that the induction coil 73 is generated and emitted. The signal, the tablet will receive the sensing signal to calculate the coordinates of the digital pen touch tablet, and execute the corresponding motion command. When the foregoing motion is continuous, a continuous stroke is generated. As described above, when the refill 741 presses the surface of the tablet to retract the refill shaft 74, the refill shaft 74 simultaneously compresses the elastic member 75, and the refill 741 leaves the tablet, the refill The shaft 74 is relieved of pressure and the refill spring 75 is pushed back to its original position by the resilient elasticity of the resilient member 75.

As can be seen from the above, the known digital pen is displaced when the refill shaft 74 is pressed, and the relative position of the core portion 742 and the induction coil 73 provided at one end thereof is changed, thereby generating an inductive signal (also referred to as The water is produced and produces a stroke; however, in many applications, the stroke thickness of the pen must be controlled. As shown in Figure 10, various strokes of different thicknesses are revealed. Since the electromagnetic induction type digital pen uses the relative movement of the core portion 742 and the induction coil 73 to generate a stroke and control the thickness thereof, the user must write a long stroke to control the variation of the stroke thickness in full order (currently Up to 2048 steps), there is inconvenience in use.

In addition to the above-mentioned electromagnetic induction to generate a stroke and control the thickness variation thereof, another method is to detect the contact area of the conductive rubber and the circuit board to control the thickness of the stroke. However, the same as the electromagnetic induction method, if the thickness of the stroke is controlled by detecting the contact area, it is still necessary to write a long stroke to achieve the change of the 2048 order, and the operation convenience is insufficient.

It can be seen from the above that the pen-type input device has to control the variation of the stroke thickness in the whole process, and needs to go through a long stroke, which is inconvenient to use. Therefore, the main purpose of the present invention is to provide a dual-sensing pen-type input device, which can be compared. The short stroke completely controls the thickness of the stroke to solve the problem that the traditional pen type input device requires a long stroke to completely control the variation of the stroke thickness.

The main technical means for achieving the foregoing objective is that the dual-sensing pen type input device comprises: a casing having a hollow tubular shape, a core hole formed at one end of the casing; and an electromagnetic induction module disposed in the casing The electromagnetic induction module includes an iron core and an induction coil. The induction coil has an axial through hole formed therein. One or more power supply coils are disposed in the outer casing and are located in the electromagnetic induction. An axial through hole is formed in the power supply coil; a pressure sensing module is disposed in the outer casing and located inside the power supply coil; the pressure sensing module has a pressure sensing piece; a metal shaft rod The system is disposed in the outer casing and sequentially passes through the through hole of the induction coil and the power supply coil; one end of the metal shaft rod is provided with the iron core of the electromagnetic induction module and is connected with a core, and the refill is connected by one end of the outer casing The refill hole is pierced, and the other end of the metal shaft is opposite to the pressure sensing piece on the pressure sensing module; the pen type input device simultaneously integrates the electromagnetic induction module and the pressure sensing In the group, when the user applies a force to the refill, when the metal shaft is pushed in and moved in a first stroke, the iron core at one end of the metal shaft will move relative to the induction coil, so that the electromagnetic induction module is generated. Sensing the signal and starting to produce a stroke; when the user presses the refill further, the metal shaft is When the moving distance exceeds the first stroke, the other end of the metal shaft rod starts to contact the pressure sensing piece on the pressure sensing module. At this point, the pen type input device is transferred to the pressure sensing module according to the sensing metal shaft pair. The pressure is applied to control the thickness of the stroke; the pen-type input device uses the electromagnetic induction module adjacent to the refill to quickly respond to the action of the user to gently press the refill to quickly generate a stroke, and then the user further applies pressure, that is, converts The pressure sensing module can easily control the thickness variation of the 2048 step according to the pressure to control the thickness of the stroke, thereby making the pen type input device more convenient for the control of the stroke thickness.

10‧‧‧ Shell

100‧‧‧Metal shaft rod

101‧‧‧Refill

11‧‧‧ pen tip

110‧‧‧Refill hole

12‧‧‧Prepare pen

13‧‧‧Chinese pen

14‧‧‧post pen

15‧‧‧First connector

150‧‧‧ hole sets

16‧‧‧Second connection

17‧‧‧Flexible components

18‧‧‧Hat

20‧‧‧Electromagnetic induction module

21‧‧‧ iron core

22‧‧‧Induction coil

23‧‧‧ casing

31,32‧‧‧Power supply coil

40‧‧‧ Pressure sensing module

41‧‧‧ boards

42‧‧‧pressure sensor

43‧‧‧fasteners

431‧‧‧

432‧‧‧ openings

50‧‧‧First mount

51‧‧‧First joint

511‧‧‧

512‧‧‧ guiding slot

60‧‧‧Second mount

61‧‧‧Second joint

611‧‧‧ buckle groove

612‧‧‧ guiding slot

62‧‧‧Inlay

63‧‧‧ boards

70‧‧‧ pen case

701‧‧‧ Pipe fittings

71‧‧‧First power supply coil

72‧‧‧second power supply coil

73‧‧‧Induction coil

74‧‧‧Refill shaft rod

741‧‧‧Refill

742‧‧‧ core

75‧‧‧Flexible components

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a preferred embodiment of the present invention.

Figure 2 is a cross-sectional view of a preferred embodiment of the present invention.

Figure 3 is a partial cross-sectional view (pen tip portion) of a preferred embodiment of the present invention.

Figure 4 is a partial exploded view of a preferred embodiment of the present invention.

Figure 5 is a partial cross-sectional view of the preferred embodiment of the present invention (the portion of the pen and the pressure sensing module).

Figure 6 is a partial cross-sectional view and motion diagram (pen tip portion) of a preferred embodiment of the present invention.

FIG. 7 is a partial cross-sectional view and a schematic view of the action (part of the pen and pressure sensing module) according to a preferred embodiment of the present invention.

FIG. 8 is a schematic diagram of a brush stroke for controlling thickness by an electromagnetic induction module and a pressure sensing module according to a preferred embodiment of the present invention.

Figure 9 is a cross-sectional view of a known electromagnetic induction pen type input device.

Fig. 10 is a schematic view showing the stroke thickness of a known electromagnetic induction pen type input device.

Referring to a preferred embodiment of the present invention, first referring to FIG. 1 and FIG. 2, the method includes a hollow tubular casing 10, an electromagnetic induction module 20, one or more power supply coils 31, 32 and a pressure sensing. The module 40, a metal shaft 100 and a core 101: wherein: in the embodiment, the outer casing 10 is in the shape of a pen, mainly by a pendulum 11, a front pen 12, a middle pen 13 and a rear The pen holders 14 are screwed together. Referring to FIG. 3, the pen tip bar 11 is formed with a core hole 110 at the other end of the screw end. The metal shaft 100 is disposed in the casing 10 and located at the pen tip. Between the rod 11 and the front rod 12, the metal shaft 100 is located at one end of the nib rod 11 and is sleeved at one end of a first connecting member 15, and the other end is sleeved with a second connecting member 16, the first connecting member 15 The other end is formed with a sleeve hole 150 for receiving the refill 101 and allowing the refill 101 to pass through the refill hole 110 of the nib 11 . In the present embodiment, a first slot chamber 111 and a second slot chamber 112 are formed in the nib 11 respectively. The first slot chamber 111 communicates with the refill hole 110, and the inner diameter of the second slot chamber 112 is larger than the first slot. The electromagnetic induction module 20 is disposed in the pen tip 11 of the outer casing 10. The electromagnetic induction module 20 includes an iron core 21 and an induction coil 22, and the iron core 21 is annular and sleeved. On a connecting member 15, the first connecting member 15 and the upper core 21 thereof are located in the first slot chamber 111 of the pen tip 11 and are moved relative to the induction coil 22 as the metal shaft 100 is pushed inward; in this embodiment The induction coil 22 is disposed at one end of a sleeve 23, and the induction coil 22 and the sleeve 23 respectively form an axial through hole, the sleeve The power supply coils 31, 32 are provided in the tube 23, and in the present embodiment, there are two power supply coils 31, 32.

Referring to FIG. 3 and FIG. 4, the sleeve 23 is received in a first fixing seat 50. The first fixing seat 50 is located in the front pen holder 12, and one end thereof extends into the pen tip 11 to make it The upper induction coil 22 is located in the second chamber 112 in the nib bar 11 and has a gap with the core 15 in the first chamber 111. The two power supply coils 31, 32 respectively form an axial through hole for the metal shaft 100 to movably pass through; as shown in FIG. 4 and FIG. 5, the pressure sensing module 40 is located in the front pen In the present embodiment, the pressure sensing module 40 includes a circuit board 41, a pressure sensing sheet 42 and a second connecting member 16 in the inner side of the power supply coil 32 and opposite to the metal shaft 100. The fastener 43 is formed by a piezoelectric piece, and is disposed on a surface of the circuit board 41 corresponding to the other end of the metal shaft 100. The fastener 43 has two opposite buckles 431 and is relatively locked. On the circuit board 41, a pressure sensing piece 42 is provided on the surface of the fixed circuit board 41, and an opening 432 is formed in the fastening member 43 to expose the pressure sensing piece 42 therebetween; when the metal shaft 100 is pushed inward, the other end can be The second connector 16 strikes the pressure sensing sheet 42 through the opening 432 in the fastener 43.

In this embodiment, the pressure sensing module 40 is disposed at one end of a tubular second fixing base 60. The second fixing base 60 is disposed in the outer casing 10 between the front pen holder 12 and the middle pen holder 13 and The first mounts 50 are coupled to each other. The second fixing base 60 defines a second engaging portion 61 at one end of the adjacent first fixing base 50, and a recess 62 is formed at the rear end of the second engaging portion 61 for inserting the pressure sensing module 40.

The first fixing base 50 also has a tubular first engaging portion 51 at one end of the adjacent second fixing base 60. The outer diameters of the first and second engaging portions 51 and 61 are matched with each other to be sleeved with each other. The first engaging portion 51 is respectively formed with a buckle 511 at two opposite positions of the outer diameter wall, and the second engaging portion 61 is respectively formed with a buckle groove 611 at a position corresponding to the buckle 511 so as to be opposite to the first joint portion 51. The upper buckles 511 are fastened to each other. The first and second engaging portions 51 and 61 respectively form a guiding groove 612 and 512 on the two opposite diameter walls, and the second connecting member 16 is formed with two guiding ribs 160 corresponding to the first one. The guiding grooves 612, 512 of the second engaging portions 51, 61 allow the second connecting member 16 to be surely moved in the axial direction of the outer casing 10. The second connecting member 16 is sleeved with an elastic member 17 , and the elastic member 17 is disposed at the other end against the inner wall of the second engaging portion 61 of the second fixing base 60 , thereby providing the metal shaft rod 100 when the pressure is released. A return to flexibility. In the present embodiment, the elastic member 17 is a spring, and the second connecting member 16 is provided with a rubber-made cap 18 corresponding to one end of the pressure sensing module 40.

The second fixing base 60 defines a space at the rear end of the slot 62 for fixing a circuit board 63. The circuit board 63 is provided with a control circuit (not shown), and is respectively connected to the electromagnetic induction module 20, The power supply coils 31, 32 are connected to the pressure sensing module 40.

The specific structure of a preferred embodiment of the present invention can be understood from the above description. The working principle is as follows: when the user holds the pen type input device but does not start writing, the metal shaft is as shown in FIG. The rod 100 is not displaced, and the iron core 21 at one end of the metal shaft rod 100 is not operated, and there is a distance from the induction coil 22, and the electromagnetic induction module 20, the power supply coils 31, 32 and the pressure sensing module 40 are both at this time. No action, so the pen type input device does not produce a stroke.

When the user applies a light pressure to the refill 101, when the metal shaft 100 is pushed in and only moves within a first stroke, the core 21 at one end of the metal shaft 100 will move toward the induction coil 22 (eg, As shown in FIG. 6 , the electromagnetic induction module 20 generates an inductive signal and starts to produce a thin stroke (see FIG. 8 ); when the user further presses the refill 101 to move the metal shaft 100 When the distance exceeds the first stroke, the second connecting member 16 disposed at the other end of the metal shaft 100 is in contact with the pressure sensing sheet 42 on the pressure sensing module 40 (shown in FIG. 7 ). The pen type input device is rotated by the pressure sensing module 40 according to the magnitude of the pressure applied by the sensing metal shaft 100 through the cap 18 to control the thickness of the stroke. When the pressure is higher, the stroke line is thicker (Fig. 8). Shown).

Since the pen type input device of the invention has the electromagnetic induction module disposed near the refill of the outer casing, it can quickly respond to the action of the user to gently press the refill to quickly generate a brush stroke, and the user further applies pressure after the conversion. The pressure sensing module controls the thickness of the stroke according to the pressure applied. Since the thickness of the stroke is controlled according to the pressure, the control of the thickness variation of 2048 can be easily achieved without a long writing stroke (as shown in FIG. 10). Therefore, the pen type input device is more convenient for the control of the stroke thickness.

10‧‧‧ Shell

100‧‧‧Metal shaft rod

101‧‧‧Refill

11‧‧‧ pen tip

12‧‧‧Prepare pen

13‧‧‧Chinese pen

14‧‧‧post pen

16‧‧‧Second connection

20‧‧‧Electromagnetic induction module

21‧‧‧ iron core

22‧‧‧Induction coil

31,32‧‧‧Power supply coil

40‧‧‧ Pressure sensing module

Claims (10)

A dual-sensing pen type input device comprises: a casing having a hollow tubular shape, a core hole formed at one end of the casing; an electromagnetic induction module disposed inside the casing and located inside the refill hole, the electromagnetic The induction module includes an iron core and an induction coil, wherein the induction coil is formed with an axial through hole; one or more power supply coils are disposed in the outer casing and located inside the electromagnetic induction module, and the power supply coil forms a An axial through hole; a pressure sensing module is disposed in the outer casing and located inside the power supply coil; the pressure sensing module has a pressure sensing piece; a metal shaft rod is disposed in the outer casing, and sequentially Passing through the through hole of the induction coil and the power supply coil; one end of the metal shaft rod is provided with the iron core of the electromagnetic induction module and is connected with a core, and the refill is pierced by the refill hole at one end of the outer casing, the metal shaft rod The other end is opposite to the pressure sensing piece on the pressure sensing module. The double induction pen type input device of claim 1, wherein one end of the metal shaft rod is sleeved with one end of a first connecting member, and the other end of the first connecting member is formed with a sleeve hole for receiving the refill; The iron core of the electromagnetic induction module is annular and sleeved on the first connecting member. The double-sensing pen type input device according to claim 2, wherein the outer casing has a penetrating rod, the pen core hole is formed with the pen core hole, and a first groove chamber and a second groove chamber are respectively formed inside, the first groove The chamber is connected to the refill hole, and the inner diameter of the second slot is larger than the first slot; the electromagnetic induction module is disposed in the nib of the outer casing, the first The connector and the core thereon are located in the first slot of the nib bar. The double induction pen type input device of claim 3, wherein the induction coil of the electromagnetic induction module is disposed at one end of the sleeve, and the induction coil and the sleeve respectively form an axial through hole, and the sleeve is internally The power supply coil is disposed; the sleeve is disposed in a first fixing seat fixed in a tubular shape, the first fixing seat is located in the front pen holder, and one end thereof extends into the pen tip rod, so that the induction coil on the pen tip rod is located There is a gap in the second tank chamber with the iron core in the first tank chamber. The dual-sensing pen type input device according to claim 4, wherein the pressure sensing module is located inside the power supply coil and opposite to the second connecting member at the other end of the metal shaft; the pressure sensing module further includes a circuit board and a fastener, the pressure sensing sheet is disposed on a surface of the circuit board and opposite to the other end of the metal shaft; the fastener has two opposite buckles and is relatively fastened on the circuit board to fix the surface of the circuit board The pressure sensing piece is provided, and an opening is formed on the fastener to expose the pressure sensing piece therebetween. The dual-sensing pen type input device according to claim 5, wherein the pressure sensing module is disposed at one end of a tubular second fixing seat, and the second fixing seat is disposed in the outer casing and located between the front pen holder and the middle pen holder. And combined with the first fixing seat. The second fixing seat is formed with a second engaging portion at one end of the adjacent first fixing seat, and a recess is formed at the rear end of the second engaging portion for embedding the pressure sensing module; the first fixing seat is An adjacent end of the second fixing seat forms a tubular first joint portion, and the first and second joint portions and the outer diameter match each other to The first joint portion is respectively formed with a buckle at two opposite positions of the outer diameter wall, and the second joint portion is respectively formed with a buckle groove at a position corresponding to the buckle portion so as to be opposite to the first joint portion. The buckles are fastened to each other. The first and second joint portions of the first and second fixing bases respectively form a guiding groove on the two opposite diameter walls; the second connecting member is formed on the second sensing member. There are two guiding ribs corresponding to the guiding grooves of the first and second engaging portions. The double-sensing pen type input device according to claim 7, wherein the second connecting member is sleeved with an elastic member, and the other end of the elastic member is abutted against the inner wall of the second engaging portion of the second fixing base. The double-sensing pen type input device according to claim 8, wherein the elastic member is a spring; and the second connecting member is provided with a rubber-made cap pad corresponding to one end of the pressure sensing module. The double-sensing pen type input device according to claim 9, wherein the second fixing base forms a space at the rear end of the slot for fixing a circuit board, the circuit board is provided with a control circuit, and the electromagnetic induction is respectively performed The module, the power supply coil and the pressure sensing module are connected.