WO2020107516A1 - 一种磁头组件及其加工方法 - Google Patents

一种磁头组件及其加工方法 Download PDF

Info

Publication number
WO2020107516A1
WO2020107516A1 PCT/CN2018/119771 CN2018119771W WO2020107516A1 WO 2020107516 A1 WO2020107516 A1 WO 2020107516A1 CN 2018119771 W CN2018119771 W CN 2018119771W WO 2020107516 A1 WO2020107516 A1 WO 2020107516A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
magnetic reading
reading units
magnetic head
circuit board
Prior art date
Application number
PCT/CN2018/119771
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
陈炳君
周桂良
黄忠贤
梁家灿
颜明皓
苏钊源
邹庭初
Original Assignee
深圳粤宝电子科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳粤宝电子科技有限公司 filed Critical 深圳粤宝电子科技有限公司
Priority to KR1020207020217A priority Critical patent/KR102380962B1/ko
Publication of WO2020107516A1 publication Critical patent/WO2020107516A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency

Definitions

  • the invention relates to the technical field of magnetic detection and identification, in particular to a magnetic head assembly and a processing method thereof.
  • the currency detector magnetic head configured on the cash machine must quickly distinguish the soft and hard magnetic anti-counterfeiting feature information recorded on the RMB and meet the "gold standard” requirements during high-speed operation.
  • the only “gold standard” testing and certification institution in China the only “gold standard” testing and certification institution in China, the traditional 64-meter banknote detector magnetic heads currently installed on the currency detectors cannot meet the above “gold standard” requirements.
  • the traditional banknote detector magnetic head is equipped with a front and back double gap and double magnetic circuit structure composed of a middle magnetic plate.
  • the same magnetic signal on the renminbi is read once before and after a total of 2 times. Therefore, the signal output by the traditional banknote detector magnetic head is a composite signal with two reading signals superimposed together, and the number of pulses is twice the actual number of pulses on the RMB. The signal is seriously distorted.
  • the two adjacent magnetic reading units of the traditional banknote detector magnetic head form a differential amplifier circuit.
  • the signals read by the two magnetic reading units are equal in size , And in the differential operational amplifier, the positive and negative cancellations cause no signal output.
  • the traditional banknote detector magnetic head cannot distinguish whether the characteristic information recorded in the Great Hall of the People's Great Hall logo on 100 yuan is soft or hard.
  • the gold 100 number, security line and the Great Hall of the People's Great Hall logo on the 100 yuan RMB of version 15 respectively record soft and hard magnetic anti-counterfeiting features, and the above three are closer.
  • the traditional one-channel 64mm long banknote detector magnetic head cannot separate the magnetic information of the three.
  • the present invention aims to provide a magnetic head assembly and a processing method thereof.
  • a magnetic head assembly includes a banknote detection magnetic head and a circuit board.
  • the banknote detection magnetic head includes a housing having an opening, and a plurality of magnetic reading units are arranged side by side in the extending direction of the opening in the housing The working ends facing the opening all pass through the opening so that the working end is placed outside the housing; the plurality of magnetic reading units are all connected to the circuit board, and the circuit board is the plurality of magnetic readings Part of the magnetic reading unit in the unit provides DC constant current.
  • a gap is provided between two adjacent magnetic reading units in the plurality of magnetic reading units.
  • the magnetic head assembly wherein the magnetic reading unit includes two oppositely arranged iron cores, a gap piece is provided between the two iron cores, and the two iron cores are respectively sleeved with coils In the wire frame, two ends of the coil are respectively connected with terminals, and connected to the circuit board through the terminals.
  • the plurality of magnetic reading units are connected in twos to form several groups of processing channels, and the two magnetic reading units in any group of processing channels are not adjacent.
  • the magnetic head assembly wherein the plurality of magnetic reading units are 12 magnetic reading units, and the 12 magnetic reading units are equally divided into three groups of magnetic reading mechanisms according to the order of arrangement, and two non-adjacent two magnetic reading mechanisms in each group A magnetic reading unit is connected to form a processing channel.
  • a part of the magnetic reading units of the plurality of magnetic reading units is connected to the DC constant current through the circuit board, and another part of the magnetic reading unit is not connected to the DC constant current.
  • the two magnetic reading units located in the same processing channel among the plurality of magnetic reading units are simultaneously connected with the direct current constant current or are not simultaneously connected with the direct current constant current.
  • the magnetic reading unit connected with the DC constant current and the magnetic reading unit not connected with the DC constant current are set according to the distribution positions of the soft and hard magnetic anti-counterfeiting characteristics of banknotes.
  • the length of the housing is 64 ⁇ 0.2 mm, the width is 13.2 ⁇ 0.2 mm, and the height is 13.9 ⁇ 0.2 mm.
  • a processing method of a magnetic head assembly including:
  • the first step insert two terminals into the wire frame and wind the coil on the wire frame, wherein the two ends of the coil are connected to the two terminals respectively;
  • Step 2 Polish the iron core and inject conductive paint, and put the two iron cores into the coil relative to each other after coating, and assemble a gap piece between the two iron cores to obtain the magnetic reading unit;
  • Step 3 Assemble several sets of magnetic reading units side by side in the housing, and the working end of each magnetic reading unit is placed outside the housing;
  • Step 4 Connect several magnetic reading units to the circuit board after connecting each other.
  • the present invention provides a magnetic head assembly, which includes a banknote verification magnetic head and a circuit board
  • the banknote verification magnetic head includes a housing having an opening, and the housing is arranged side by side along the extending direction of the opening
  • a plurality of magnetic reading units are arranged, and the plurality of magnetic reading units all pass through the opening toward the working end of the opening, so that the working end is placed outside the housing; the plurality of magnetic reading units are all connected with the circuit board Connected, the circuit board provides direct current constant current for some of the magnetic reading units.
  • the invention adopts a single gap and single magnetic circuit structure, and only reads the same magnetic signal on the renminbi once, thereby ensuring that the banknote detection signal is not distorted.
  • the present invention communicates with the reading magnetic unit through the circuit board a part of the reading magnetic unit circulates a DC constant current, so that it can read the soft and hard magnetic characteristic signals on the banknote, and part of the reading magnetic unit does not circulate a DC constant current. It can only read the soft magnetic characteristic signals on the banknotes, so that it can distinguish whether the characteristic information recorded in the Great Hall of the People's Great Hall pattern on 100 yuan is soft magnetic or hard magnetic, improving the accuracy of banknote detection.
  • FIG. 1 is a schematic structural diagram of a magnetic head assembly provided by the present invention.
  • FIG. 2 is a schematic structural diagram of a banknote verification magnet in a magnetic head assembly provided by the present invention.
  • FIG. 3 is a schematic structural view of the iron core in the magnetic head assembly provided by the present invention.
  • FIG. 4 is a schematic structural diagram of a magnetic reading unit in a magnetic head assembly provided by the present invention.
  • FIG. 5 is a circuit schematic diagram of the magnetic head assembly provided by the present invention.
  • FIG. 6 is a flowchart of a method for processing a magnetic head assembly provided by the present invention.
  • the present invention provides a magnetic head assembly and a processing method thereof.
  • the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
  • This embodiment provides a magnetic head assembly.
  • the magnetic head assembly of a banknote verification magnetic head 10 and a circuit board 20 are electrically connected to the banknote verification magnetic head 10.
  • the banknote detecting magnetic head 10 includes a housing 11, an end of the housing 11 away from the circuit board 20 is provided with an opening along the length direction, and a plurality of magnetic reading units 12 are provided in the housing 11.
  • the plurality of magnetic reading units 12 are arranged side by side along the extending direction of the opening, and an end of the magnetic reading unit 12 facing the opening is referred to as a working end 122, and the working end 122 passes through the opening and is placed in the Outside the housing 11.
  • the plurality of magnetic reading units 12 are all connected to the circuit board 20 to circulate current through the circuit board 20.
  • the magnetic reading unit 12 that circulates DC constant current can read the soft and hard magnetic characteristic signals on the banknote, and the magnetic reading unit 12 that does not circulate DC constant current can only read the soft magnetic characteristic signal on the banknote, so that it can be distinguished Whether the feature information recorded in the Great Hall of the People's Great Hall logo on 100 yuan is soft or hard magnetic, which improves the accuracy of banknote verification.
  • the plurality of magnetic reading units 12 are installed in the housing 11, and there are gaps between any two adjacent magnetic reading units 12.
  • the width of the gap between any two adjacent magnetic reading units 12 is equal, and the width of the gap is preferably 0.2 mm, which can improve the compactness of the magnetic head assembly and reduce the volume of the magnetic head structure
  • mutual interference between the magnetic reading units 12 can be avoided, and signal distortion can be avoided.
  • the length of the housing 11 is 64 ⁇ 0.2 mm
  • the width is 13.2 ⁇ 0.2 mm
  • the height is 13.9 ⁇ 0.2 mm.
  • the length of the working end 122 of the magnetic reading unit 12 outside the housing 11 is preferably 5mm.
  • the magnetic reading unit 12 may include two oppositely arranged iron cores 121, wherein the iron core 121 adopts a C-shaped iron core 121.
  • the ends of the two C-shaped iron cores 121 facing the opening are both sloped and jointly form a working end 122, and the working end 122 is placed outside the housing 11 through the opening.
  • the two C-shaped iron cores 121 are arranged to face each other, and a gap piece 123 is provided between the two C-shaped iron cores 121 to form a single gap single magnetic circuit structure through the two C-shaped iron cores 121 and the gap piece 123 In this way, only one reading of the same magnetic signal on the renminbi is required to solve the problem of distortion of the banknote detection signal caused by the traditional dual-slot magnetic head 10 double-slot dual-magnetic circuit structure.
  • the magnetic reading unit 12 further includes a wire frame 124, a coil 125, a terminal 126, and two iron core seats 127.
  • the two iron cores 121 are located between the two iron core seats 127 and fixed by the two iron core seats 127.
  • the bottoms of the two iron cores 121 are all sleeved with a wire frame 124.
  • the wire frame 124 is wound around
  • the coil 125 is connected to the bobbin 126 at both ends of the coil 125.
  • a rear cover 111 is provided at the bottom of the housing 11, and a grounding plate 112 is provided on the outer wall of the housing 11.
  • the grounding plate 112 passes through the circuit board 20 to ground the banknote detection head.
  • the terminal 126 passes through the rear cover 111 and is connected to the circuit board 20 to input the read characteristic signal to the circuit board 20.
  • the two iron cores 121 are made of permalloy material, so that a strong magnetic field can be formed between the two iron cores 121 after the coil 125 is energized.
  • an elastic pressure plate is provided between the housing 11 and the two iron core seats 127.
  • the elastic pressure plate is in contact with the housing 11, and the elastic pressure plate is clamped by the housing 11 to fix the two iron core seats 127 by the elastic pressure plate, further improving the stability of the two iron cores 121.
  • the elastic pressure plate may use an arc-shaped elastic pressure plate, the arc surface of the arc-shaped elastic pressure plate is in contact with the housing 11, and the arc-shaped elastic pressure plate is in a compressed state, so that The connection relationship between the two iron core seats 127 and the housing 11 is more stable.
  • the arc surface of the arc-shaped elastic pressure plate may also be in contact with the iron core seat 127, and the arc-shaped elastic pressure plate is in a compressed state.
  • the iron core seats on the same side of each magnetic reading unit may be a whole, that is, two iron core seats are provided in the housing, and several iron core seats are provided between the two iron core seats. Accommodating space, each accommodating space is provided with a magnetic reading unit, which can improve the compactness of the magnet assembly structure and the stability between the magnetic reading unit and the housing.
  • the read magnetic units 12 in the read magnetic units 12 are connected two by two to form several groups of processing channels, and the two read magnetic units 12 in each group of channel channels are not connected, which not only improves The anti-jamming performance of the magnetic head is solved, and the problem of differential amplification without signal output is solved when the security wire on the renminbi passes the middle position of the two magnetic reading units 12 adjacent to the banknote verification magnetic head 10.
  • the number of the magnetic reading units 12 is preferably 12, and the two magnetic reading units 12 are connected to each other to form 6 sets of processing channels.
  • the 6 groups of processing channels can be formed by dividing the 12 magnetic reading units 12 into 3 groups of magnetic reading mechanisms according to the order of arrangement, and two non-adjacent magnetic reading units 12 in each group of magnetic reading mechanisms are connected To handle the channel. This can further improve the anti-interference performance of the magnetic head.
  • a part of the magnetic reading units 12 of the plurality of magnetic reading units 12 is connected to the DC constant current through the circuit board 20, and another part of the magnetic reading unit 12 is not connected to the DC constant current;
  • the magnetic unit 12 can read the soft and hard magnetic characteristic signals on the banknotes, and the magnetic reading unit 12 that does not circulate DC constant current can only read the soft magnetic characteristic signals on the banknotes, so that the pattern of the Great Hall of the People can be discerned at 100 yuan Whether the recorded characteristic information is soft magnetic or hard magnetic, to improve the accuracy of banknote detection.
  • the magnetic reading units 12 are supplied with a DC constant current through the circuit board 20, and a DC magnetic field is generated at the working end 122 of the magnetic field
  • the magnetic ink is magnetized so that the eight magnetic reading units 12 can read both the hard magnetic characteristic signal on the banknote and the soft magnetic characteristic signal on the banknote.
  • the four magnetic reading units 12 do not circulate direct current, and can only read the soft magnetic characteristic signal on the banknote, but cannot read the hard magnetic characteristic signal on the banknote.
  • circuit board 20 is provided with an output port, which transmits the information of the 6-channel differential amplification processing channel to the banknote detector for processing, so that the banknote detector can distinguish that the characteristic information recorded in the Great Hall of the People on the 100 yuan is soft. Magnetic or hard magnetic.
  • the read magnetic unit 12 with DC constant current turned on and the read magnetic unit 12 without DC constant current turned on are set according to the distribution positions of the soft and hard magnetic anti-counterfeiting features of banknotes, and are in the same processing channel
  • the unit 12 is connected to the DC constant current or not connected to the DC constant current at the same time, so that the magnet assembly can accurately obtain the characteristic information on the banknote, and the golden 100 numbers on the 15 version of 100 yuan can be safely
  • the line and the Great Hall of the People's Hall pattern respectively record soft and hard magnetic anti-counterfeiting feature information and the relative positions of the three are separated to obtain various magnetic information respectively, thereby improving the accuracy of banknote detection.
  • the present invention also provides a processing method of the magnetic head assembly, which includes:

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Magnetic Heads (AREA)
PCT/CN2018/119771 2018-11-26 2018-12-07 一种磁头组件及其加工方法 WO2020107516A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020207020217A KR102380962B1 (ko) 2018-11-26 2018-12-07 자기헤드 어셈블리 및 그의 가공방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811419201.X 2018-11-26
CN201811419201.XA CN109191660B (zh) 2018-11-26 2018-11-26 一种磁头组件及其加工方法

Publications (1)

Publication Number Publication Date
WO2020107516A1 true WO2020107516A1 (zh) 2020-06-04

Family

ID=64938067

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/119771 WO2020107516A1 (zh) 2018-11-26 2018-12-07 一种磁头组件及其加工方法

Country Status (3)

Country Link
KR (1) KR102380962B1 (ko)
CN (1) CN109191660B (ko)
WO (1) WO2020107516A1 (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111275878A (zh) * 2020-03-11 2020-06-12 全南英创电子有限公司 一种验钞磁头及其加工方法
CN112621032B (zh) * 2020-12-08 2022-07-29 全南英创电子有限公司 一种磁头点焊机台

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261518A (en) * 1993-03-11 1993-11-16 Brandt, Inc. Combined conductivity and magnetic currency validator
CN203490762U (zh) * 2013-09-29 2014-03-19 深圳粤宝电子工业总公司 一种欧元防伪磁头
CN104504801A (zh) * 2014-12-19 2015-04-08 深圳粤宝电子工业总公司 一种钞票软、硬磁性防伪特征识别系统
CN204576652U (zh) * 2015-03-25 2015-08-19 李佳蔓 一种用于有价证券检测装置的磁头
CN205354180U (zh) * 2016-02-02 2016-06-29 深圳粤宝电子科技有限公司 磁性识别传感器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006039439A2 (en) * 2004-09-30 2006-04-13 Cummins-Allison Corp. Magnetic detection system for use in currency processing and method and apparatus for using the same
KR101082051B1 (ko) * 2009-11-30 2011-11-10 한국조폐공사 자기 어레이 센서로 위조여부를 감지하는 인식장치와 이를 이용한 시료 측정방법
JP5608548B2 (ja) * 2010-12-28 2014-10-15 日本電産サンキョー株式会社 磁気センサユニット
JP2014106012A (ja) * 2012-11-26 2014-06-09 Nidec Sankyo Corp 磁気センサ装置
CN103886669B (zh) * 2012-12-20 2016-09-07 深圳粤宝电子科技有限公司 兼容软硬磁性特征信号检测的磁头
JP6359858B2 (ja) * 2014-04-04 2018-07-18 キヤノン電子株式会社 磁界検出装置および磁気識別装置
CN105261106B (zh) * 2014-07-15 2018-06-12 山东新北洋信息技术股份有限公司 磁数据读取装置及磁数据读取方法
KR102516301B1 (ko) * 2016-05-02 2023-04-03 기산전자 주식회사 자성물질 식별 장치 및 지폐 계수기
CN206058358U (zh) * 2016-09-08 2017-03-29 深圳粤宝电子科技有限公司 验钞磁头
CN206039695U (zh) * 2016-09-12 2017-03-22 深圳粤宝电子科技有限公司 一种传感器
CN206039694U (zh) * 2016-09-12 2017-03-22 深圳粤宝电子科技有限公司 一种磁性检测器
CN208126472U (zh) * 2018-04-19 2018-11-20 深圳粤宝电子科技有限公司 一种人民币磁性油墨防伪检测传感器
CN209087030U (zh) * 2018-11-26 2019-07-09 深圳粤宝电子科技有限公司 一种磁头组件

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261518A (en) * 1993-03-11 1993-11-16 Brandt, Inc. Combined conductivity and magnetic currency validator
CN203490762U (zh) * 2013-09-29 2014-03-19 深圳粤宝电子工业总公司 一种欧元防伪磁头
CN104504801A (zh) * 2014-12-19 2015-04-08 深圳粤宝电子工业总公司 一种钞票软、硬磁性防伪特征识别系统
CN204576652U (zh) * 2015-03-25 2015-08-19 李佳蔓 一种用于有价证券检测装置的磁头
CN205354180U (zh) * 2016-02-02 2016-06-29 深圳粤宝电子科技有限公司 磁性识别传感器

Also Published As

Publication number Publication date
KR20200096826A (ko) 2020-08-13
CN109191660A (zh) 2019-01-11
KR102380962B1 (ko) 2022-03-30
CN109191660B (zh) 2024-06-14

Similar Documents

Publication Publication Date Title
WO2020107516A1 (zh) 一种磁头组件及其加工方法
KR101930881B1 (ko) 연자기 특성신호와 경자기 특성신호를 모두 검출가능한 마그네틱헤드
WO2006039439A2 (en) Magnetic detection system for use in currency processing and method and apparatus for using the same
CN206039694U (zh) 一种磁性检测器
CN206039695U (zh) 一种传感器
CN206058358U (zh) 验钞磁头
CN209087030U (zh) 一种磁头组件
CN105574982B (zh) 一种线圈磁芯全桥结构的读磁器
CN203490759U (zh) 一种兼容支票和钞票的防伪检测磁头
CN205354179U (zh) 线圈磁芯全桥结构的读磁器
CN204807685U (zh) 磁头
US9916710B2 (en) Coin-shaped detection object discriminating device
CN204740657U (zh) 点钞机磁头
CN104504801A (zh) 一种钞票软、硬磁性防伪特征识别系统
CN113393609B (zh) 一种验钞磁头
CN204155339U (zh) 一种新型验钞磁头和验钞设备
CN203490761U (zh) 一种磁图像识别器
JP3814692B2 (ja) 印刷物、その真偽判別方法及び真偽判別装置
CN220604074U (zh) 验钞机的磁头板
CN105913544A (zh) 一种具有加磁功能的点钞机磁头
CN2439016Y (zh) 钞磁传感器
CN217113398U (zh) 一种验钞磁头
CN203490760U (zh) 一种外币验钞机磁头组件
CN215576760U (zh) 一种兼容人民币和外币的验钞磁头
CN220691448U (zh) 验钞机

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 20207020217

Country of ref document: KR

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18941841

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18941841

Country of ref document: EP

Kind code of ref document: A1