CN105281732A - Inductive switch knob and encoding method thereof - Google Patents
Inductive switch knob and encoding method thereof Download PDFInfo
- Publication number
- CN105281732A CN105281732A CN201510685757.3A CN201510685757A CN105281732A CN 105281732 A CN105281732 A CN 105281732A CN 201510685757 A CN201510685757 A CN 201510685757A CN 105281732 A CN105281732 A CN 105281732A
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- knob
- inductive switch
- permanent magnet
- hall switch
- circuit board
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Abstract
The invention relates to an inductive switch knob and an encoding method thereof. The inductive switch knob comprises an inductive switch circuit board and an inductive knob, wherein the inductive switch circuit board and the inductive knob are placed on both sides of an operation panel respectively; the inductive switch circuit board and the inductive knob are positioned through two permanent magnets which attract each other; the inductive switch circuit board is further provided with a plurality of Hall switches which are distributed on the same circular arc; and the inductive knob further comprises a knob base and a plurality of permanent magnets which are uniformly distributed on the same circumference of an inner shell of the knob base. The inductive switch knob is characterized in that 2X Hall switches are provided; 4Y permanent magnets are provided; X and Y are natural numbers; two adjacent permanent magnets of which inductive magnetic poles are N and two adjacent permanent magnets of which magnetic poles are S are arranged alternatively; circles where the Hall switches and the permanent magnets are positioned are spatial concentric circles; and layout angles of each group of Hall switches on the circular arc are consistent with layout angles of two adjacent permanent magnets on the circular arc. The inductive switch knob is novel in structure, and has high universality.
Description
Technical field
The present invention relates to a kind of switching knob, particularly relate to a kind of inductive switch knob and coding method thereof.
Background technology
Existing switching knob mostly belongs to the switching knob of physical connection, as potentiometer type switching knob, band bar coding type switching knob, the knob of this physical connection not only in use can because of the effect of attrition useful life of mechanical structure, the knob of physical connection is in use owing to needing perforate on the panel of electric equipment simultaneously, destroy integrality and the sealing of device housings, cause greatly weakening by force intensity of panel, the pollutant access arrangement of device external also can be caused inner, the parts of device interior and circuit are formed and pollutes and destroy, also hamper the clean of panel to a certain extent simultaneously.
For this reason, there has been proposed a kind of inductive switch knob, be a kind of induction code switch the Chinese invention patent of CN101005280B (patent No. is ZL200610033206.X) just discloses as authorized publication number, it comprises inductive switch plate and induction knob, described inductive switch plate and described induction knob are placed on the both sides of guidance panel respectively, and located by first permanent magnet at described inductive switch plate center and the attracting each other of the second permanent magnet at described induction knob center, described inductive switch plate comprises and is evenly distributed on same n (n >=3) individual Hall switch circumferentially, described induction knob comprises the base being used for fixing the second permanent magnet, knob is on the base installed and is evenly distributed on same m (m is even number) the individual permanent magnet circumferentially of this knob inner casing, the magnetic field changed relative to described inductive switch plate is produced by rotating described knob.In the structure shown here, the minimum number of Hall switch is 3, and the layout of the Hall switch on the permanent magnet of knob inside and switchboard is fixed form, that is:, in the permanent magnet of knob inside, the pole orientation between adjacent permanent magnet is contrary; And be used for judging that the encoding software that the coding that the direction of rotation of knob and knob rotate a circle is counted also is fixing, if the layout of the Hall switch on permanent magnet and switchboard changes, then be used for judging that the encoding software that the coding that the direction of rotation of knob and knob rotate a circle is counted just can not use, the versatility of encoding software is not strong.
Summary of the invention
First technical problem to be solved by this invention is the inductive switch knob providing a kind of structure highly versatile for above-mentioned prior art.
Second technical problem to be solved by this invention is the coding method of the inductive switch knob providing a kind of encoding software highly versatile for above-mentioned prior art.
The present invention solves the technical scheme that above-mentioned first technical problem adopt: inductive switch knob, comprise inductive switch circuit board and induction knob, described inductive switch circuit board and described induction knob are placed on the both sides of guidance panel respectively, described inductive switch circuit board center is provided with the first permanent magnet, described induction knob center is provided with the second permanent magnet, inductive switch circuit board is located by the first permanent magnet and attracting each other of the second permanent magnet with induction knob, described inductive switch circuit board is also provided with the multiple Hall switch be distributed on same circular arc, described induction knob also comprises the knob base being used for fixing the second permanent magnet, and be evenly distributed on same multiple permanent magnets circumferentially of knob base inner casing, it is characterized in that:
The Hall switch number that described inductive switch circuit board is arranged is 2X, X is natural number, and two Hall switch are one group, one is divided into X group, be designated as respectively H11, H12, H21, H22, H31, H32 ... HX1, HX2, wherein H11 and H12 is one group, H21 and H22 is one group, HX1 and HX2 is one group, its along on inductive switch circuit board circular arc distribution order be followed successively by H11, H21, H31 ... HX1, H12, H22, H32 ... HX2;
The permanent magnet number that described induction knob inner casing is arranged is 4Y, and Y is natural number, and alternately places according to the form of two adjacent induced magnetisms very permanent magnet induced magnetism adjacent with two very permanent magnet of S of N;
The circle at the circular arc at 2X Hall switch place and 4Y permanent magnet place is on the concentric circles in space;
And the Layout-Angle of each group Hall switch on circular arc is consistent with the Layout-Angle of two adjacent permanent magnets on circular arc.
The described induction knob coded number that can sense that rotates a circle is 4X*Y.
The present invention solves the technical scheme that above-mentioned second technical problem adopt: a kind of coding method with the inductive switch knob of said structure, for judging direction of rotation and the coded number of responding to knob, it is characterized in that:
Judge that induction knob is to turn clockwise or the method be rotated counterclockwise is:
If Hall switch becomes low level when N pole or S pole field being detected and being greater than its trigger value, represent with " 0 ", and keep always, until become high level when S pole or N pole field being detected and be greater than trigger value, represent with " 1 ", namely Hall switch only has two states " 0 " and " 1 ", simultaneously due to the Hall switch that inductive switch circuit board is arranged and the position relationship responded on knob inner casing between permanent magnet, when knob turns clockwise and is rotated counterclockwise, the coded combination often organizing Hall switch and the order combining generation uniquely determine; Therefore when knob rotates according to gather the current encoding state combination often organizing Hall switch with on once the encoding state of this group Hall switch combine and compare, just can confirm that knob turns clockwise or is rotated counterclockwise;
Add up all groups of Hall switch coded combinations to change the summation of number of times, just can determine the coded number of induction knob in rotary course.
Compared with prior art, the invention has the advantages that: the layout structure between the permanent magnet on the Hall switch on inductive switch circuit board and induction knob is novel, and encoding software versatility is stronger.
Accompanying drawing explanation
Fig. 1 is for the inductive switch knob structure schematic diagram of 8 permanent magnets, 2 groups of Hall switch in the embodiment of the present invention;
Fig. 2 responds to knob upward view in Fig. 1 example;
Fig. 3 is the vertical view of inductive switch circuit board in Fig. 1 example.
Embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
The inductive switch knob that the present embodiment provides, comprise inductive switch circuit board 2 and induction knob 1, described inductive switch circuit board 2 and described induction knob 1 are placed on the both sides of guidance panel 3 respectively, in this example, guidance panel 3 is face glass, described inductive switch circuit board center is provided with the first permanent magnet 21, described induction knob center 1 is provided with the second permanent magnet 11, and inductive switch circuit board 2 is located by the first permanent magnet 21 and the second attracting each other of permanent magnet 11 with induction knob 1; Described inductive switch circuit board 2 is also provided with 2X the Hall switch 22 be distributed on same circular arc; Described induction knob 1 also comprises the knob base 11 being used for fixing the second permanent magnet and the same permanent magnet of 4Y circumferentially 12 being evenly distributed on knob base inner casing, when 2X Hall switch is rotated by induction knob, the change in magnetic field, determines induction knob direction of rotation and induction code number.
For guaranteeing that inductive switch circuit board effectively can detect induction knob changes of magnetic field in real time, in 2X Hall switch 22, two is one group, one is divided into X group, be designated as respectively H11, H12, H21, H22, H31, H32 ... HX1, HX2, wherein H11 and H12 is one group, H21 and H22 is one group ... HX1 and HX2 is one group, its along on inductive switch circuit board circular arc distribution order be followed successively by H11, H21, H31 ... HX1, H12, H22, H32 ... HX2; The magnetizing direction of 4Y permanent magnet is vertical direction, and alternately places by the form of two adjacent induced magnetisms very permanent magnet induced magnetism adjacent with two very permanent magnet of S of N, and namely N, N, S, S replace placement; And each group Hall switch [H11, H12], [H21, H22], [H31, H32] ... [HX1, HX2] Layout-Angle on circular arc is consistent with the Layout-Angle of two adjacent permanent magnets on circular arc, and is spatially on the suitable concentric circles of radius; In this structure, responding to the knob coded number that can sense that rotates a circle in inductive switch knob is 4X*Y.
In the coding method of above-mentioned inductive switch knob, judge that induction knob is to turn clockwise or the method be rotated counterclockwise is:
If Hall switch becomes low level when N pole or S pole field being detected and being greater than its trigger value, represent with " 0 ", and keep always, until become high level when S pole or N pole field being detected and be greater than trigger value, represent with " 1 ", namely Hall switch only has two states " 0 " and " 1 ", simultaneously due to the Hall switch that inductive switch circuit board is arranged and the position relationship responded on knob inner casing between permanent magnet, when knob turns clockwise and is rotated counterclockwise, the coded combination often organizing Hall switch and the order combining generation uniquely determine; Therefore when knob rotates according to gather the current encoding state combination often organizing Hall switch with on once the encoding state of this group Hall switch combine and compare, just can confirm that knob turns clockwise or is rotated counterclockwise;
Judge that the method for coded number that induction knob rotates a circle is: add up all groups of Hall switch coded combinations and to change the summation of number of times, just can determine the coded number of induction knob in rotary course.
Induction knob rotates a circle the coded number that can sense, is equivalent to respond to knob and rotates a circle the gear number had.In the present embodiment, if induction knob rotates a circle only need 4 gears, we only need employing 4 permanent magnets and 2 Hall switch; Needs 8 gears if induction knob rotates a circle, now just there are two kinds of selections, one is employing 4 permanent magnets and 4 Hall switch, the second is employing 8 permanent magnets and 2 two Hall switch, for this two schemes, the encoding software in the application does not need to make any change, only the layout of permanent magnet and Hall switch need be made adjustments according to the requirement of afore mentioned rules, user can select the one of least cost in two schemes simultaneously, but the effect of two schemes is completely the same.
Such as, with knob base 1 has 8 permanent magnet 12-1,12-2 ... it be 16 is example that the situation of 12-8 is issued to coded number, which employs A, B two groups of Hall switch 22-1,22-2,22-3,22-4,8 permanent magnet 12-1,12-2 ... it is circumferentially same that 12-8 is evenly distributed on knob base 11 inner casing, and alternately place by the form of two adjacent induced magnetisms very permanent magnet induced magnetism adjacent with two very permanent magnet of S of N, i.e. N, N, S, S alternately place; Four Hall switch 22-1,22-2,22-3,22-4, it is one group according to Hall switch 22-1, Hall switch 22-3, Hall switch 22-2, Hall switch 22-4 are one group and are arranged on inductive switch circuit board 2, and arc angle between Hall switch 22-1, Hall switch 22-3 is consistent with the Layout-Angle of two adjacent permanent magnets on circular arc, the arc angle between Hall switch 22-1, Hall switch 22-3 is consistent with the Layout-Angle of two adjacent permanent magnets on circular arc; See as shown in Figures 1 to 3, the induced response of A, B two groups of Hall switch is clapped (angle of adjacent two magnet is a bat, and the half of adjacent magnets angle is half bat) except having advanced or delayed half outward, all the other is all consistent; Hall switch becomes low level when N pole field being detected and be greater than its trigger value, represent with " 0 ", and keep, represent until become high level when detecting S pole field and be greater than trigger value with " 1 ", namely Hall switch only has two states " 0 " and " 1 "; always When responding to knob dextrorotation and circling, the corresponding coded combination of A group No. 1 Hall switch and A group No. 2 Hall switch is 01,00,10,11,01,00,10,11, when responding to knob and being rotated counterclockwise one week, the corresponding coded combination of A group No. 1 Hall switch and A group No. 2 Hall switch is 01,11,01,00,10,11,01,00; Compared with the coded combination of new state when rotating by No. 1, A group and No. 2 last state encoding combinations of Hall switch like this, just can determine the direction of rotation responding to knob, if the last state encoding of A group two Hall switch is combined as " 01 ", A group two Hall switch new state coded combinations are " 00 ", then judge that induction knob is as turning clockwise, if the coded combination of the last state of A group two Hall switch is " 01 ", the coded combination of A group two Hall switch new states is " 11 ", then judge that induction knob is as being rotated counterclockwise; Then add up the change frequency of all groups of Hall switch combinations of states, just and can determine respond to knob rotate time coded number.Because B group and A group exist advanced or delayed partly clapping, its response coding is consistent, so successively encoded twice by A/B two groups of Hall switch when same permanent magnet forwards next adjacent permanent magnet in induction knob, the precision of induction knob is doubled.
Claims (3)
1. an inductive switch knob, comprise inductive switch circuit board and induction knob, described inductive switch circuit board and described induction knob are placed on the both sides of guidance panel respectively, described inductive switch circuit board center is provided with the first permanent magnet, described induction knob center is provided with the second permanent magnet, inductive switch circuit board is located by the first permanent magnet and attracting each other of the second permanent magnet with induction knob, described inductive switch circuit board is also provided with the multiple Hall switch be distributed on same circular arc, described induction knob also comprises the knob base being used for fixing the second permanent magnet, and be evenly distributed on same multiple permanent magnets circumferentially of knob base inner casing, it is characterized in that:
The Hall switch number that described inductive switch circuit board is arranged is 2X, X is natural number, and two Hall switch are one group, one is divided into X group, be designated as respectively H11, H12, H21, H22, H31, H32 ... HX1, HX2, wherein H11 and H12 is one group, H21 and H22 is one group, HX1 and HX2 is one group, its along on inductive switch circuit board circular arc distribution order be followed successively by H11, H21, H31 ... HX1, H12, H22, H32 ... HX2;
The permanent magnet number that described induction knob inner casing is arranged is 4Y, and Y is natural number, and alternately places according to the form of two adjacent induced magnetisms very permanent magnet induced magnetism adjacent with two very permanent magnet of S of N;
The circle at the circular arc at 2X Hall switch place and 4Y permanent magnet place is on the concentric circles in space;
And the Layout-Angle of each group Hall switch on circular arc is consistent with the Layout-Angle of two adjacent permanent magnets on circular arc.
2. inductive switch knob according to claim 1, is characterized in that: the described induction knob coded number that can sense that rotates a circle is 4X*Y.
3. a coding method for inductive switch knob as claimed in claim 1, for judging direction of rotation and the coded number of responding to knob, is characterized in that:
Judge that induction knob is to turn clockwise or the method be rotated counterclockwise is:
If Hall switch becomes low level when N pole or S pole field being detected and being greater than its trigger value, represent with " 0 ", and keep always, until become high level when S pole or N pole field being detected and be greater than trigger value, represent with " 1 ", namely Hall switch only has two states " 0 " and " 1 ", simultaneously due to the Hall switch that inductive switch circuit board is arranged and the position relationship responded on knob inner casing between permanent magnet, when knob turns clockwise and is rotated counterclockwise, the coded combination often organizing Hall switch and the order combining generation uniquely determine; Therefore when knob rotates according to gather the current encoding state combination often organizing Hall switch with on once the encoding state of this group Hall switch combine and compare, just can confirm that knob turns clockwise or is rotated counterclockwise;
Add up all groups of Hall switch coded combinations to change the summation of number of times, just can determine the coded number of induction knob in rotary course.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685757.3A CN105281732B (en) | 2015-10-19 | 2015-10-19 | A kind of inductive switch knob and its coding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685757.3A CN105281732B (en) | 2015-10-19 | 2015-10-19 | A kind of inductive switch knob and its coding method |
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| Publication Number | Publication Date |
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| CN105281732A true CN105281732A (en) | 2016-01-27 |
| CN105281732B CN105281732B (en) | 2018-04-17 |
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| CN201510685757.3A Active CN105281732B (en) | 2015-10-19 | 2015-10-19 | A kind of inductive switch knob and its coding method |
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Cited By (18)
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| CN106068043A (en) * | 2016-05-31 | 2016-11-02 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic Heating cooking system and PCU Power Conditioning Unit thereof |
| CN106230429A (en) * | 2016-07-26 | 2016-12-14 | 京东方科技集团股份有限公司 | knob and display device |
| CN106411306A (en) * | 2016-10-13 | 2017-02-15 | 宁波方太厨具有限公司 | Magnetic-induction knob switch |
| CN106525378A (en) * | 2016-10-27 | 2017-03-22 | 中国航天空气动力技术研究院 | Device for automatically identifying number of wind tunnel nozzle |
| CN107448996A (en) * | 2016-05-31 | 2017-12-08 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic Heating cooking system and its PCU Power Conditioning Unit |
| CN107562117A (en) * | 2017-10-13 | 2018-01-09 | 浙江新涛电子科技股份有限公司 | A kind of electrical equipment non-contact type magnetic knob structure |
| CN108696618A (en) * | 2018-05-15 | 2018-10-23 | 维沃移动通信有限公司 | A kind of mobile terminal |
| CN108900184A (en) * | 2018-10-11 | 2018-11-27 | 中山凯富电器有限公司 | A kind of induction rotary switch |
| CN108983086A (en) * | 2018-09-06 | 2018-12-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Rotary switch condition detection method, device, system and equipment |
| CN109859971A (en) * | 2017-11-30 | 2019-06-07 | 宁波方太厨具有限公司 | A kind of luminous induction switch structure for household electrical appliance |
| CN109931962A (en) * | 2019-04-02 | 2019-06-25 | 河北旭辉电气股份有限公司 | Magnetic inductive non-contact type loaded switch gear readback device |
| TWI672617B (en) * | 2018-06-27 | 2019-09-21 | 宏碁股份有限公司 | Dial device |
| CN110779489A (en) * | 2019-10-17 | 2020-02-11 | 中国航空工业集团公司洛阳电光设备研究所 | Device and method for measuring rotation state of rotating protective cover by using double sensors |
| CN110895053A (en) * | 2019-12-10 | 2020-03-20 | 广东万家乐燃气具有限公司 | Magnetism knob subassembly and water heater |
| CN111366174A (en) * | 2020-03-20 | 2020-07-03 | 青岛中加特电气股份有限公司 | Magnetic induction detection device and method for detecting rotation direction |
| EP3686560A1 (en) | 2019-01-28 | 2020-07-29 | Melexis Technologies SA | Magnetic attractive rotary button system |
| CN111781547A (en) * | 2020-05-28 | 2020-10-16 | 佛山市三俊电子股份有限公司 | Hall induction controller |
| CN113670342A (en) * | 2021-09-22 | 2021-11-19 | 成都金智联科科技有限责任公司 | Valve opening degree measuring device, measuring method and opening and closing direction judging method |
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| CN106068043A (en) * | 2016-05-31 | 2016-11-02 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic Heating cooking system and PCU Power Conditioning Unit thereof |
| CN107448996A (en) * | 2016-05-31 | 2017-12-08 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic Heating cooking system and its PCU Power Conditioning Unit |
| CN106068043B (en) * | 2016-05-31 | 2020-04-10 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating cooking system and power adjusting device thereof |
| CN106230429A (en) * | 2016-07-26 | 2016-12-14 | 京东方科技集团股份有限公司 | knob and display device |
| CN106411306A (en) * | 2016-10-13 | 2017-02-15 | 宁波方太厨具有限公司 | Magnetic-induction knob switch |
| CN106525378A (en) * | 2016-10-27 | 2017-03-22 | 中国航天空气动力技术研究院 | Device for automatically identifying number of wind tunnel nozzle |
| CN107562117A (en) * | 2017-10-13 | 2018-01-09 | 浙江新涛电子科技股份有限公司 | A kind of electrical equipment non-contact type magnetic knob structure |
| CN109859971A (en) * | 2017-11-30 | 2019-06-07 | 宁波方太厨具有限公司 | A kind of luminous induction switch structure for household electrical appliance |
| CN109859971B (en) * | 2017-11-30 | 2024-01-16 | 宁波方太厨具有限公司 | Luminous inductive switch structure for household appliances |
| CN108696618B (en) * | 2018-05-15 | 2020-04-07 | 维沃移动通信有限公司 | Mobile terminal |
| CN108696618A (en) * | 2018-05-15 | 2018-10-23 | 维沃移动通信有限公司 | A kind of mobile terminal |
| TWI672617B (en) * | 2018-06-27 | 2019-09-21 | 宏碁股份有限公司 | Dial device |
| CN108983086B (en) * | 2018-09-06 | 2023-11-17 | 佛山市顺德区美的洗涤电器制造有限公司 | Knob switch state detection method, device, system and equipment |
| CN108983086A (en) * | 2018-09-06 | 2018-12-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Rotary switch condition detection method, device, system and equipment |
| CN108900184A (en) * | 2018-10-11 | 2018-11-27 | 中山凯富电器有限公司 | A kind of induction rotary switch |
| US11257643B2 (en) | 2019-01-28 | 2022-02-22 | Melexis Technologies Sa | Magnetic attractive rotary button system |
| EP3686560A1 (en) | 2019-01-28 | 2020-07-29 | Melexis Technologies SA | Magnetic attractive rotary button system |
| CN109931962B (en) * | 2019-04-02 | 2024-01-26 | 河北旭辉电气股份有限公司 | Magnetic induction type non-contact on-load switch gear position readback device |
| CN109931962A (en) * | 2019-04-02 | 2019-06-25 | 河北旭辉电气股份有限公司 | Magnetic inductive non-contact type loaded switch gear readback device |
| CN110779489A (en) * | 2019-10-17 | 2020-02-11 | 中国航空工业集团公司洛阳电光设备研究所 | Device and method for measuring rotation state of rotating protective cover by using double sensors |
| CN110779489B (en) * | 2019-10-17 | 2021-08-13 | 中国航空工业集团公司洛阳电光设备研究所 | Device and method for measuring rotation state of rotating protective cover by using double sensors |
| CN110895053A (en) * | 2019-12-10 | 2020-03-20 | 广东万家乐燃气具有限公司 | Magnetism knob subassembly and water heater |
| CN111366174B (en) * | 2020-03-20 | 2022-02-18 | 青岛中加特电气股份有限公司 | Magnetic induction detection device and method for detecting rotation direction |
| CN111366174A (en) * | 2020-03-20 | 2020-07-03 | 青岛中加特电气股份有限公司 | Magnetic induction detection device and method for detecting rotation direction |
| CN111781547A (en) * | 2020-05-28 | 2020-10-16 | 佛山市三俊电子股份有限公司 | Hall induction controller |
| CN113670342A (en) * | 2021-09-22 | 2021-11-19 | 成都金智联科科技有限责任公司 | Valve opening degree measuring device, measuring method and opening and closing direction judging method |
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|---|---|
| CN105281732B (en) | 2018-04-17 |
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Denomination of invention: An Inductive Switch Knob and Its Coding Method Effective date of registration: 20230721 Granted publication date: 20180417 Pledgee: Bank of China Limited Ningbo Hangzhou Bay New Area sub branch Pledgor: NINGBO FOTILE KITCHEN WARE Co.,Ltd. Registration number: Y2023980049312 |
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