CN201662778U - Electromagnetic induction pointer - Google Patents
Electromagnetic induction pointer Download PDFInfo
- Publication number
- CN201662778U CN201662778U CN201020115167XU CN201020115167U CN201662778U CN 201662778 U CN201662778 U CN 201662778U CN 201020115167X U CN201020115167X U CN 201020115167XU CN 201020115167 U CN201020115167 U CN 201020115167U CN 201662778 U CN201662778 U CN 201662778U
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- China
- Prior art keywords
- index device
- electromagnetic induction
- metal needle
- flip flop
- powdered
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- Expired - Lifetime
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Abstract
The utility model relates to an electromagnetic induction pointer, which comprises a metal needle, a resonance circuit and a trigger. The resonance circuit comprises a ferrocart core, a coil and at least one capacitor, the coil is wound on the ferrocart core to form an inductor, and the metal needle passes through the ferrocart core and can slide in the ferrocart core. The metal needle can trigger the trigger to change the electrical property of the resonance circuit.
Description
Technical field
The utility model relates to a kind of electromagnetic induction index device, particularly relates to a kind of no battery electromagnetic type index device that can be used for e-book (E-book/Green book).
Background technology
Input media or electronic installation for example digiboard (Digitizer tablets) or e-book (E-book/Green book) have antenna or inductive coil and constitute an induction planes and layout under the working surface of digiboard or behind the e-book screen, and operate with index device (pointer), and the coordinate position of index device is to transmit with receiving by the electromagnetic wave between index device internal resonance circuit and antenna or the inductive coil to obtain.
Index device is time writer or claim the resonant circuit of digital pen (stylus) to comprise by inductance, electric capacity and related elements usually and place within the shell for example.Inductance many by powdered-iron core (ferrite core) outer twine that wire coil is constituted and related elements such as electric capacity forms oscillation circuit with and the antenna loop of input media or inductive coil between transmit and the reception electromagnetic wave signal.The variation of index device internal resonance channel frequency is reached by changing electric capacity or inductance value usually, so the design of index device can decide what person of index device resonant circuit electric capacity or inductance maybe can adjust for variable according to the demand on using.For majority is applied to this type of input media of digiboard, the size of index device particularly diameter generally not special requirement must suitably dwindle, and suitable, even in order to hold elements such as resonant circuit and greater than writing pen with the size of general writing pen.But for the portable electronic device in for example e-book or other must be accommodated in index device for some electronic installations, the size of considering electronic installation itself is thickness particularly, the size of index device particularly the restriction of diameter just must meet can electronic installation demand index device could be accommodated in.
In order to satisfy the demand that index device can be accommodated in electronic installation, under the prerequisite that function must remain unchanged at least, the inductance within the traditional index device, electric capacity and related elements and internal mechanism design must need to change.But the employed technology of traditional index device can not effectively be dwindled the design of above-mentioned inductance, electric capacity and related elements and internal mechanism, and technical difficulty comes from problems such as the size restrictions of powdered-iron core for example and pencil lead plastic parts undercapacity.
Problem in view of above-mentioned traditional index device manufacturing technology and mechanism design, in order to satisfy the demand that index device can be accommodated in electronic installation, the utility model proposes the electromagnetic type index device technology that can overcome problem such as size restrictions and strength of materials deficiency in the traditional index device manufacturing technology.
Summary of the invention
The purpose of this utility model is, a kind of electromagnetic induction index device of new structure is provided, and technical matters to be solved is to make it overcome problem such as size restrictions and strength of materials deficiency in the traditional index device manufacturing technology.
The purpose of this utility model and to solve its technical matters be to adopt following technical scheme to realize.According to a kind of electromagnetic induction index device that the utility model proposes, it comprises: a metal needle; The coil that one resonance loop, this resonance circuit comprise a powdered-iron core and twine this powdered-iron core is to constitute an inductor and at least one capacitor, and this metal needle passes this powdered-iron core and can therebetween slide; And a flip flop equipment, this flip flop equipment is between this metal needle and this resonance circuit.
The purpose of this utility model and solve its technical matters and can also be further achieved by the following technical measures.
Aforesaid electromagnetic induction index device, it also comprises a shell, and this shell holds this metal needle, this resonance circuit and this flip flop equipment.
Aforesaid electromagnetic induction index device, wherein this shell diameter is less than 6 millimeters.
Aforesaid electromagnetic induction index device is wherein inserted a macromolecular material to fill up this metal needle, this resonance circuit and this flip flop equipment space therebetween in this shell.
Aforesaid electromagnetic induction index device, wherein this macromolecular material is epoxy resin (epoxy).
Aforesaid electromagnetic induction index device, wherein this resonance circuit comprises a circuit board, and this coil electrically connects this circuit board with a lead.
Aforesaid electromagnetic induction index device, wherein this flip flop equipment is between a side of this metal needle and this circuit board.
Aforesaid electromagnetic induction index device, wherein a side of this circuit board has the trigger point.
Aforesaid electromagnetic induction index device, wherein this electromagnetic induction index device is used for e-book.
Aforesaid electromagnetic induction index device, wherein this flip flop equipment comprises a cup spring.
The utility model compared with prior art has tangible advantage and beneficial effect.Via as can be known above, in order to achieve the above object, the utility model provides a kind of electromagnetic induction index device, and this electromagnetic induction index device comprises a metal needle, a resonance loop and a flip flop equipment.The coil that resonance circuit comprises a powdered-iron core and twines powdered-iron core is to constitute an inductor and at least one capacitor, and metal needle passes powdered-iron core and can therebetween slide.Metal needle is by touching flip flop equipment to change the electrical of resonance circuit.
By technique scheme, the utility model electromagnetic induction index device has following advantage and beneficial effect at least: electromagnetic type index device of the present utility model can overcome problem such as size restrictions and strength of materials deficiency in the traditional index device manufacturing technology.
In sum, the utility model relates to a kind of electromagnetic induction index device and comprises, a shell component, circuit board, metal needle, powdered-iron core (ferrite core) and flip flop equipment.The diameter of shell component is less than 6 millimeters (millimeter), and circuit board comprises resonance circuit, and metal needle comprises a low leading magnetism modulus (permeability, metal needle μ).A powdered-iron core and a coil that twines powdered-iron core constitute an inductor, and electrically connect to finish a resonance loop with lead with circuit board.Powdered-iron core central authorities are hollow, and metal needle passes powdered-iron core and therebetween slides and to start flip flop equipment resonance circuit electrically changed.The utility model has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Figure 1A is the exploded view of the electromagnetic type index device of the utility model one embodiment.
Figure 1B is an interlinked mechanism exploded view further in the electromagnetic type index device of the utility model one embodiment.
Fig. 1 C shows the structural representation after the interlinked mechanism of electromagnetic type index device among Figure 1B makes up.
102a: a shell component 102b a: shell component
103: nib assembly 104: circuit board
106a: fixture 106b: fixture
108: conduit 110: metal needle
112: powdered-iron core 114: on-off element
Embodiment
Embodiment more of the present utility model will be described in detail as follows.Yet except following description, the utility model can also be widely implemented at other embodiment, and scope of the present utility model is not subjected to the qualification of embodiment, and it is as the criterion with claims.Moreover for clearer description being provided and being more readily understood the utility model, graphic interior each several part is not drawn according to its relative size, and some size is compared with other scale dependents and exaggerated; Incoherent detail section is not drawn fully yet, in the hope of graphic succinct.
Figure 1A is the exploded view of the electromagnetic type index device of the utility model one embodiment.The electromagnetic type index device comprises, a shell component 102a and 102b, a nib assembly 103, a circuit board 104, a metal needle 110, a powdered-iron core (ferrite core) 112 and one flip flop equipment.Shell component 102a and 102b comprise the hollow shaft of a writing brush assembly that is made of nonmetallic materials, with elements such as containment circuit board 104, metal needle 110, powdered-iron core 112 and flip flop equipments, wherein the diameter of a shell component 102a and 102b is less than 6 millimeters (millimeter), and with 5.5 millimeters preferable, but be not limited to 5.5 millimeters.Circuit board 104 comprises a printed circuit board (PCB) (printed circuit board), resonance circuit (resonancecircuit) and necessary element on printed circuit board (PCB), and the high-frequency electromagnetic signal that the electromagnetic type index device can be sent with the antenna or the inductive coil of electromagnetic input devices such as e-book or digiboard produces resonance.Metal needle 110 comprises a low leading magnetism modulus (permeability, metal needle μ).The coil (not shown) that powdered-iron core 112 and twines powdered-iron core 112 constitutes an inductor, and coil also electrically connects to finish a resonance loop with lead (not shown) with circuit board 104.Powdered-iron core 112 central authorities are hollow, and the diameter that its diameter is a bit larger tham metal needle 110 passes powdered-iron core 112 and slip therebetween in order to metal needle 110.Flip flop equipment comprises fixture 106a and 106b, conduit 108, on-off element 114.Metal needle 110 other ends (rear end) that pass powdered-iron core 112 then are inserted in the conduit 108, in being coated on after 114 of conduit 108 and on-off elements are made up by fixture 106a and 106b, and contact with circuit board 104, be coated and fixed by a shell component 102a and 102b again, but nib assembly 103, metal needle 110, conduit 108 and on-off element 114 constitute an interlinked mechanism.On-off element 114 comprises a cup spring, and when metal needle 110 was inserted in conduit 108 contact cup springs, the cup spring central authorities then trigger point of contact circuit plate 104 1 sides made portion of element loop conducting on the circuit board 104, cause the electrical change of resonance circuit.Because nib assembly 103 is to be installed on metal needle 110 1 ends (front end), 110 of metal needles pass powdered-iron core 112 central authorities, metal needle 110 other ends (rear end) then are inserted in the conduit 108, when 108 in conduit passes through nib assembly 103 contact electromagnetic input device induction zones surfaces, metal needle 110 slides to promote conduit 108 to promote or touch switch element 114 makes portion of element loop conducting on the circuit board 104 in powdered-iron core 112 central authorities, cause the electrical change of resonance circuit, for example changes in capacitance causes the variation of frequency.When the metal needle 110 that passes powdered-iron core 112 central authorities during not because of nib assembly 103 forced-slip, the element connection status changes the change that causes frequency to on-off element 114 in the resonance circuit because of conduit 108 promotes to make.
Figure 1B be in the electromagnetic type index device of the utility model one embodiment interlinked mechanism with trigger further exploded view of structure and holder.Nib assembly 103 is installed on metal needle 110 1 ends (front end), metal needle 110 passes powdered-iron core 112 central authorities, metal needle 110 other ends (rear end) then are inserted in the conduit 108,108 in conduit is used for contact-making switch element 114 and when the stressed promotion metal needles 110 of nib assembly 103 slide, make conduit 108 contact extruding on-off elements 114 and make circuit board 104 make the loop conducting that originally is in off state, cause the electrical change of resonance circuit by on-off element 114.
Fig. 1 C shows the structural representation after the interlinked mechanism of electromagnetic type index device among Figure 1B makes up.In wherein conduit 108 partly is coated on by fixture 106a and 106b with metal needle 110 rear ends.On-off element 114 is promoted with conduit 108 by nib assembly 103, metal needle 110 and the resonance circuit circuit of circuit board 104 is connected change.(permeability, metal μ) are good, to avoid causing the unnecessary variation of electromagnetic field of the inductor that powdered-iron core 112 and the wire coil that twines powdered-iron core 112 constitute and the material of metal needle 110 is with low leading magnetism modulus.Then please refer to Figure 1A, because the diameter of a shell component 102a and 102b is less than 6 millimeters (millimeter), in order to strengthen the structure of electromagnetic type index device, can be after circuit board 104, metal needle 110, powdered-iron core 112 and flip flop equipment be packed a shell component 102a into, but with the macromolecular material of reinforced structure for example synthetic resin particularly epoxy resin (epoxy) pour into the structure of filling up space therebetween in the shell component 102a and strengthening the electromagnetic type index device.
According to above-mentioned, in an embodiment of the present utility model, the electromagnetic type index device utilizes metal needle to pass powdered-iron core and coil central authorities and makes the variation of electrical change of resonance circuit and frequency with conduit promotion or touch switch element, can overcome problem such as size restrictions and strength of materials deficiency in the traditional index device manufacturing technology and satisfy electronic installation or input media for the demand of index device, thereby electromagnetic induction index device of the present utility model can be used for electronic installation or input medias such as e-book.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. electromagnetic induction index device is characterized in that it comprises:
One metal needle;
The coil that one resonance loop, this resonance circuit comprise a powdered-iron core and twine this powdered-iron core is to constitute an inductor and at least one capacitor, and this metal needle passes this powdered-iron core and can therebetween slide; And
One flip flop equipment, this flip flop equipment is between this metal needle and this resonance circuit.
2. electromagnetic induction index device according to claim 1 is characterized in that it also comprises a shell, and this shell holds this metal needle, this resonance circuit and this flip flop equipment.
3. electromagnetic induction index device according to claim 2 is characterized in that wherein this shell diameter is less than 6 millimeters.
4. electromagnetic induction index device according to claim 2 is characterized in that wherein inserting a macromolecular material to fill up this metal needle, this resonance circuit and this flip flop equipment space therebetween in this shell.
5. electromagnetic induction index device according to claim 4 is characterized in that wherein this macromolecular material is an epoxy resin.
6. electromagnetic induction index device according to claim 1 is characterized in that wherein this resonance circuit comprises a circuit board, and this coil electrically connects this circuit board with a lead.
7. electromagnetic induction index device according to claim 6 is characterized in that wherein this flip flop equipment is between a side of this metal needle and this circuit board.
8. electromagnetic induction index device according to claim 6 is characterized in that wherein a side of this circuit board has the trigger point.
9. electromagnetic induction index device according to claim 1 is characterized in that this metal needle one end wherein is inserted in a nib assembly and the other end is inserted in a conduit that touches this flip flop equipment.
10. electromagnetic induction index device according to claim 1 is characterized in that wherein this flip flop equipment comprises a cup spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020115167XU CN201662778U (en) | 2010-01-27 | 2010-01-27 | Electromagnetic induction pointer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020115167XU CN201662778U (en) | 2010-01-27 | 2010-01-27 | Electromagnetic induction pointer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201662778U true CN201662778U (en) | 2010-12-01 |
Family
ID=43233196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020115167XU Expired - Lifetime CN201662778U (en) | 2010-01-27 | 2010-01-27 | Electromagnetic induction pointer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201662778U (en) |
-
2010
- 2010-01-27 CN CN201020115167XU patent/CN201662778U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WACOM CO., LTD. Free format text: FORMER OWNER: TAIHAN SCIENCE + TECHNOLOGY Effective date: 20150506 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150506 Address after: Saitama Prefecture, Japan Patentee after: Wacom Co., Ltd. Address before: China Taiwan Hsinchu Science Industrial Park, Hsinchu City, 104 East Park Road, room two, room 47 Patentee before: Taihan Science & Technology |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101201 |
|
| CX01 | Expiry of patent term |