WO2014195993A1 - Tête magnétique et dispositif de traitement de support d'enregistrement magnétique - Google Patents

Tête magnétique et dispositif de traitement de support d'enregistrement magnétique Download PDF

Info

Publication number
WO2014195993A1
WO2014195993A1 PCT/JP2013/003523 JP2013003523W WO2014195993A1 WO 2014195993 A1 WO2014195993 A1 WO 2014195993A1 JP 2013003523 W JP2013003523 W JP 2013003523W WO 2014195993 A1 WO2014195993 A1 WO 2014195993A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
core
magnetic head
recording medium
case
Prior art date
Application number
PCT/JP2013/003523
Other languages
English (en)
Japanese (ja)
Inventor
弘之 鈴木
明博 忠政
彰伸 中坊
幸男 青山
Original Assignee
日立オムロンターミナルソリューションズ株式会社
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 日立オムロンターミナルソリューションズ株式会社 filed Critical 日立オムロンターミナルソリューションズ株式会社
Priority to JP2015521178A priority Critical patent/JP6122494B2/ja
Priority to PCT/JP2013/003523 priority patent/WO2014195993A1/fr
Priority to CN201410232983.1A priority patent/CN104239837B/zh
Publication of WO2014195993A1 publication Critical patent/WO2014195993A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00804—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic sheets
    • G11B5/00808—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic sheets magnetic cards

Definitions

  • the present invention relates to a magnetic head for reading or writing magnetic information from or to a magnetic recording medium, and a magnetic recording medium processing apparatus provided with the magnetic head, and more particularly to a technology for reducing the influence of electromagnetic waves and magnetic fields from the outside. .
  • Transaction processing devices such as ATM (Automated Teller Machine) and CDs (Cash Dispenser) are equipped with a magnetic recording medium processing device that handles magnetic recording media such as magnetic cards. .
  • a magnetic recording medium processing device that handles magnetic recording media such as magnetic cards.
  • reading or writing of magnetic information is performed on the magnetic card by the magnetic head inside.
  • noise is generated in the read signal of the magnetic head due to the influence of the electromagnetic wave and magnetic field generated externally, and the magnetic information recorded on the magnetic card can not be read or erroneous magnetic information is read. There are times when In addition, noise may occur in the write signal of the magnetic head, and the magnetic information may not be normally written on the magnetic card.
  • ATMs and CDs are composed of a plurality of units such as a computer main body, a liquid crystal display, a keyboard, and a printer, in addition to the magnetic recording medium processing device.
  • liquid crystal displays emit electromagnetic waves and magnetic fields to the periphery.
  • a transport motor provided in a magnetic recording medium processing device or a printer also radiates an electromagnetic wave or a magnetic field to the periphery.
  • the magnetic recording medium processing apparatus may use a magnetic head with high sensitivity so that weak magnetic information recorded on the magnetic recording medium can be read. In this case, even if the core or coil is covered with a metal case, the performance of reading or writing magnetic information is degraded by the influence of an electromagnetic wave or a magnetic field radiated from a liquid crystal display or the like.
  • the core is exposed at the contact surface of the magnetic head in contact with the magnetic recording medium. For this reason, even if a shield plate is provided around the magnetic head as in Patent Document 1, electromagnetic waves and magnetic fields from the outside enter from the exposed portion of the core, so the performance is degraded under the influence of them. I will.
  • a transport path such as a magnetic card or a transport member is disposed around the magnetic head, it is difficult to install a shield plate so as to completely cover the magnetic head.
  • An object of the present invention is to provide a magnetic head and a magnetic recording medium processing apparatus capable of improving the performance by reducing the influence of an electromagnetic wave and a magnetic field from the outside.
  • a magnetic head comprising a core, a coil disposed around the core, and a metal case accommodating the core and the coil, wherein the magnetic head reads or writes magnetic information to or from the magnetic recording medium.
  • a magnetic body is provided on the side of the core inside the.
  • a magnetic recording medium processing apparatus includes the above magnetic head and an insertion slot into which the magnetic recording medium is inserted, and the magnetic head reads the magnetic information from the magnetic recording medium inserted from the insertion slot. Or write.
  • the magnetic body is provided on the side of the core in the metal case of the magnetic head, the electromagnetic wave and the magnetic field from the outside are distributed so as to be attracted to the magnetic body. It becomes difficult. For this reason, in the magnetic head and the magnetic recording medium processing device provided with the magnetic head, the influence of the electromagnetic wave and the magnetic field from the outside, which cause noise, can be reduced. As a result, it becomes possible to improve the performance of reading and writing of magnetic information to the magnetic recording medium.
  • the present invention can be realized without changing the size and the case of the conventional magnetic head, the magnetic head in the existing magnetic recording medium processing apparatus can be easily replaced with the magnetic head of the present invention. Furthermore, when designing a new magnetic recording medium processing apparatus, it is not necessary to provide a shield plate or the like around the magnetic head, so the degree of freedom in designing the magnetic recording medium processing apparatus can be improved.
  • the magnetic body in the magnetic head, may be disposed laterally of the core in the thickness direction, and may be unevenly distributed so that an external electromagnetic wave and magnetic field do not reach the core.
  • the electromagnetic wave and magnetic field from the outside become less likely to reach the core, so the influence of the electromagnetic wave and magnetic field on the performance of the magnetic head can be further reduced.
  • the magnetic material in the magnetic head, may be provided on both sides of the core, or may be provided on one side of the core.
  • the magnetic material When the magnetic material is provided on both sides of the core, electromagnetic waves and magnetic fields from the outside can be effectively unevenly distributed to make the core difficult to be provided, as compared with the case where the magnetic material is provided on one side of the core.
  • the magnetic body when the magnetic body is provided on one side of the core, the internal structure of the magnetic head can be simplified as compared with the case where the magnetic body is provided on both sides of the core.
  • the magnetic body in the magnetic head, may be formed of a material having a permeability equal to or higher than that of the material of the core, or is formed of a material having a permeability smaller than that of the material of the core. May be
  • the electromagnetic wave and magnetic field from the outside are more effective than the case where the magnetic body is formed of a material having a permeability smaller than that of the core material. It can be attracted to the magnetic material to make it difficult to reach the core.
  • the magnetic body in the magnetic head, may have a thickness equal to or greater than the thickness of the core, or may have a thickness thinner than the thickness of the core.
  • the thickness of the magnetic body is made equal to or greater than the thickness of the core, electromagnetic waves and magnetic fields from the outside can be effectively unevenly distributed to make the core difficult as compared with the case where the thickness is made thinner than the thickness of the core. it can.
  • the magnetic body in the magnetic head, may have the same side shape as the core or may have a side shape different from the core.
  • the magnetic body can be manufactured using the same manufacturing equipment as the core, and the manufacturing efficiency can be improved.
  • the magnetic body in the magnetic head, may have a volume equal to or more than the volume of the core, or may have a volume smaller than the volume of the core.
  • the present invention it is possible to provide a magnetic head and a magnetic recording medium processing apparatus capable of improving the performance by reducing the influence of electromagnetic waves and magnetic fields from the outside.
  • FIG. 1 is an electrical block diagram of a magnetic recording medium processing apparatus according to an embodiment of the present invention.
  • FIG. 2 is a view showing a magnetic card.
  • FIG. 3 is a schematic structural view of the magnetic recording medium processing device of FIG.
  • FIG. 4 is an exploded perspective view of the magnetic head according to the first embodiment of the present invention.
  • FIG. 5 is an assembly process diagram of the magnetic head of FIG.
  • FIG. 6 is a view showing the distribution of electromagnetic waves and magnetic fields around the magnetic head of FIG.
  • FIG. 7 is an exploded perspective view of a magnetic head according to a second embodiment of the present invention.
  • FIG. 8 is a diagram showing the distribution of electromagnetic waves and magnetic fields around the magnetic head of FIG.
  • FIG. 9 is a view showing the distribution of electromagnetic waves and magnetic fields around the magnetic head according to the third embodiment.
  • FIG. 10 is a view showing the distribution of electromagnetic waves and magnetic fields around the magnetic head according to the fourth embodiment.
  • FIG. 11 is a diagram showing the distribution of electromagnetic waves and magnetic fields
  • FIG. 1 is an electrical block diagram of the magnetic recording medium processing apparatus 100.
  • FIG. FIG. 2 is a view showing the magnetic card 20.
  • FIG. FIG. 3 is a schematic structural view of the magnetic recording medium processing apparatus 100. As shown in FIG.
  • an arrow F indicates a forward direction
  • an arrow B indicates a backward direction
  • an arrow L indicates a left direction
  • an arrow R indicates a right direction
  • an arrow U indicates an upward direction
  • an arrow D indicates a downward direction
  • the left direction L is the left direction when the front (F side) is viewed from the rear (B side)
  • the right direction R is the right when the front (F side) is viewed from the rear (B side) It is a direction.
  • the magnetic recording medium processing apparatus 100 is mounted, for example, on a transaction processing apparatus such as an ATM installed in a financial institution.
  • the magnetic recording medium processing apparatus 100 includes a magnetic card reader that receives the magnetic card 20 (FIG. 2) owned by the customer and reads the magnetic information recorded in the magnetic stripe 20s of the magnetic card 20.
  • the magnetic stripe 20 s is provided on the back surface 20 b of the magnetic card 20.
  • the magnetic card 20 is an example of the “magnetic recording medium” in the present invention.
  • the magnetic recording medium processing apparatus 100 includes a control unit 2, a magnetic stripe detection sensor 3, a storage unit 4, a magnetic head 10, a card conveyance unit 5, a card position detection sensor 6, and a host interface 7. Is equipped.
  • the magnetic stripe detection sensor 3 is provided in the insertion port unit 1 b of the magnetic recording medium processing apparatus 100 as shown in FIG. 3A.
  • An insertion slot 1c for inserting the magnetic card 20 is provided on the front surface of the insertion slot unit 1b.
  • the magnetic recording medium processing apparatus 100 is installed inside the panel 200 of the transaction processing apparatus with the insertion slot unit 1b facing forward (direction F).
  • the insertion opening 1 c communicates with the opening 201 provided in the panel 200.
  • the insertion port 1c is formed in rectangular shape, as shown to FIG. 3B.
  • the control unit 2, the storage unit 4, the magnetic head 10, the card conveyance unit 5, the card position detection sensor 6, and the host interface 7 are provided in the main body 1 a of the magnetic recording medium processing device 100.
  • the control unit 2 includes a microcomputer and controls the operation of each unit.
  • the storage unit 4 is composed of a memory and stores various types of information.
  • the magnetic stripe detection sensor 3 is configured of a small magnetic head.
  • the magnetic stripe detection sensor 3 detects the magnetic stripe 20s of the magnetic card 20 in which the magnetic information is recorded.
  • the control unit 2 detects the insertion of the magnetic card 20 from the insertion slot 1 c based on the output signal of the magnetic stripe detection sensor 3.
  • the card conveyance unit 5 includes a plurality of rollers 5a (FIG. 3), and a motor and a circuit (not shown) for rotating the rollers 5a.
  • the card transport unit 5 sandwiches the magnetic card 20 between the rollers 5a in the main body 1a, rotates the roller 5a by the driving force of the motor, and moves the magnetic card 20 along the transport path 40 (FIG. 3) Transport to B.
  • the magnetic head 10 is fixed to the lower side (D direction side) of the transport path 40 in the main body 1a.
  • the magnetic stripe 20s of the magnetic card 20 contacts the contact surface 10s of the magnetic head 10, and the magnetic head 10 transmits magnetic information from the magnetic stripe 20s. read.
  • the magnetic head 10 is for reproducing the magnetic information recorded on the magnetic stripe 20 s of the magnetic card 20.
  • the detailed structure of the magnetic head 10 will be described later.
  • the card position detection sensor 6 is composed of a plurality of transmission type optical sensors 6a to 6e shown in FIG.
  • the light receiving portions and the light emitting portions of the respective light sensors 6a to 6e are disposed to face the upper and lower sides (U and D directions) of the transport path 40 in the main body 1a.
  • the control unit 2 detects the position of the magnetic card 20 in the insertion slot unit 1b or the main body 1a based on the output signals of the respective optical sensors 6a to 6e.
  • the host interface 7 is composed of a circuit that transmits and receives information to and from a host computer (not shown) mounted on the ATM.
  • FIG. 1 the structure of the magnetic head 10A of the first embodiment will be described with reference to FIGS. 4 to 6.
  • FIG. 4 is a diagrammatic representation of the magnetic head 10A of the first embodiment.
  • FIG. 4 is an exploded perspective view of the magnetic head 10A.
  • FIG. 5 is an assembly process diagram of the magnetic head 10A.
  • FIG. 6 a plan view of the magnetic head 10A is shown in (a), a front view is shown in (b), and a side view is shown in (c).
  • the magnetic head 10A constitutes the magnetic head 10 shown in FIGS. 1 and 3 (the same applies to magnetic heads 10B, 10C, and 10D described later).
  • the magnetic head 10A is composed of, for example, a two-channel reproduction type magnetic head that reads magnetic information from two tracks provided on the magnetic stripe 20s of the magnetic card 20.
  • the magnetic head 10 ⁇ / b> A includes a core 11, a coil 12, a holder 13, a case 14, and a magnetic body 15.
  • Each core 11 consists of a pair of core pieces 11a as shown in FIG.
  • Each core piece 11a is made of, for example, a magnetic material such as ferrite or permalloy.
  • Each coil 12 comprises a bobbin 12b and a winding 12a wound around the bobbin 12b.
  • the bobbin 12b is a molded product of a synthetic resin.
  • Winding 12a is made of, for example, a copper wire or the like.
  • Two holders 13 made of synthetic resin are provided. Three grooves 13 a are formed in each holder 13.
  • the magnetic body 15 is formed in a plate shape, for example, of a magnetic material such as permalloy, sendust, ferrite, silicon steel, iron, aluminum, or stainless steel.
  • the material of the magnetic body 15 may be a material having a permeability equal to or higher than that of the material of the core 11, or may be a material having a permeability smaller than that of the material of the core 11.
  • the material of each magnetic body 15 is the same.
  • the thickness in the L and R directions of the magnetic body 15 is thinner than the thickness in the L and R directions of the core 11.
  • the magnetic body 15 has a side shape different from that of the core 11, and the area of the side is larger than that of the core 11. (See FIG. 6 (b)).
  • the volume of the magnetic body 15 is larger than the volume of the core 11.
  • illustration of the coil 12 and the holder 13 is omitted (the same applies to FIGS. 8 to 11 described later).
  • the case 14 is a metal case made of a magnetic material such as, for example, iron, stainless steel, aluminum, permalloy, ferrite, or silicon steel, and is formed in a box shape. In the upper part of the case 14, two rectangular openings 14a are formed. Inside the case 14, the core 11, the coil 12, the holder 13, and the magnetic body 15 are accommodated.
  • the core 11 is formed in a rectangular ring shape by combining the pair of core pieces 11a.
  • the horizontal portions 11c (FIG. 4) of the pair of core pieces 11a are inserted into the hollow portion 12c (FIG. 4) from both sides in the axial direction (F and B directions) of the bobbin 12b.
  • the coil 12 is arrange
  • a gap of a predetermined size is provided between the upper portions of the cores 11, that is, between the upper portions 11b of the pair of core pieces 11a (see also FIG. 6B).
  • a combination of the core 11 and the coil 12 is a direction perpendicular to the axial direction (F, B directions) of the coil 12 in two pairs, that is, the thickness direction of the core 11 (L , R direction).
  • the magnetic body 15 is provided between the left side (L direction side) of the core 11 on the left side, the right side (R direction side) of the core 11 on the right side, and both cores 11. Place. That is, the core 11 and the coil 12 and the magnetic body 15 are alternately arranged in the thickness direction (L and R directions) of the core 11 and the magnetic body 15.
  • both side end portions of the central magnetic body 15 are engaged with the central groove 13 a of each holder 13. Further, the left and right end portions of the magnetic body 15 are engaged with the left and right groove portions 13 a of each holder 13.
  • the core 11, the coil 12, the magnetic body 15, and the holder 13 are accommodated inside the case 14 from the lower side (D direction side), and the lower side of the case 14 is closed by a cover not shown.
  • the core 11, the coil 12, the magnetic body 15, and the holder 13 are fixed in the case 14. Further, in the case 14, the magnetic members 15 are disposed on both sides in the thickness direction of each core 11, that is, on the L direction side and R direction side of each core 11 (see FIGS. 6A and 6C). . That is, in the case 14, the cores 11 are sandwiched by the magnetic members 15.
  • each core 11 protrudes from each opening 14a of the case 14.
  • the lead terminals connected to both ends of the winding 12a of each coil 12 are drawn out from holes provided in a cover (not shown) (not shown).
  • each core 11 and the upper portion of the case 14 are polished, and as shown in FIGS. 6B and 6C, the upper surface of each core 11 is flush with the upper surface of the case 14.
  • the top surfaces of the core 11 and the case 14 are the contact surfaces 14s of the magnetic head 10A that are in contact with the magnetic stripes 20s of the magnetic card 20.
  • Each opening 14a of the case 14 is closed by each core 11 (see FIGS. 6A and 6C).
  • the magnetic head 10A manufactured as described above is fixed at the position of the magnetic head 10 in FIG. 3A, that is, at a predetermined position below the transport path 40 in the main body 1a of the magnetic recording medium processing apparatus 100. Ru. At this time, the magnetic head 10A is fixed such that the contact surface 14s of the magnetic head 10A is upward and the axial direction of each coil 12 is parallel to the transport direction (F, B direction) of the magnetic card 20. Further, the magnetic head 10A is electrically connected to the control unit 2 (FIG. 1) through a lead terminal (not shown) and the like.
  • the magnetic stripe 20s contacts the contact surface 14s of the magnetic head 10A. And according to the magnetic information recorded on 20 s of magnetic stripes, the magnetic field of core 11 changes, and the direction of the current which flows into coil 12 also changes.
  • the control unit 2 reads the magnetic information recorded in the magnetic stripe 20 s based on the change in the direction of the current flowing through the coil 12.
  • FIGS. 6 and 11 lines of magnetic force of electromagnetic waves and magnetic fields from the outside are indicated by dotted lines (the same applies to FIGS. 8 to 10 described later). Further, in FIG. 11, a plan view of the conventional magnetic head 90 is shown in (a), a front view is shown in (b), and a side view is shown in (c).
  • the electromagnetic wave and the magnetic field from the outside are shielded to some extent by the metal case 14, but a part penetrates the case 14 or passes through the opening 14 a of the case 14 to enter the inside.
  • the electromagnetic wave and the magnetic field entering the case 14 are as shown by dotted lines in FIGS. And transmits the core 11 made of a magnetic material to generate an electromotive force in a coil (not shown).
  • the magnetic information of the magnetic card 20 is read, noise is superimposed on the read signal, and the read performance of the magnetic head 90 is degraded.
  • the electromagnetic wave and the magnetic field which entered the case 14 are the magnetic materials on both sides of the core 11, as shown by dotted lines in FIGS. It is unevenly distributed so as to be attracted to 15 and becomes difficult to reach the core 11. Thereby, the electromotive force generated in the coil 12 (FIG. 4) by the electromagnetic wave and magnetic field from the outside is reduced, and the noise superimposed on the read signal is reduced when the magnetic information of the magnetic card 20 is read. Improve.
  • the magnetic head 10A of the first embodiment and the magnetic recording medium processing apparatus 100 provided with the magnetic head 10A it is possible to reduce the influence of an external electromagnetic wave and a magnetic field which cause noise. As a result, it is possible to improve the reading performance of the magnetic information to the magnetic card 20.
  • the magnetic body 15 is provided in the case 14 so as to sandwich the core 11, the size can be realized without changing the size of the magnetic head 10A or the case 14 from the conventional one. As a result, it is possible to easily replace the magnetic head provided in the existing magnetic recording medium processing apparatus with the magnetic head 10A of the first embodiment.
  • the magnetic body 15 is provided in the side (L, R direction side) of the thickness direction of the core 11. As shown in FIG. Therefore, for example, by disposing the magnetic body 15 on the side of the coil 12 in the F and B directions or the U and D directions, it is difficult for the electromagnetic wave and magnetic field from the outside to reach the core 11 and affect the performance of the magnetic head 10A. Can be further reduced.
  • the magnetic body 15 is provided on both sides (L and R directions) of the core 11, for example, the electromagnetic wave from the outside can be obtained by providing the magnetic body 15 on one side of the core 11. And the magnetic field can be effectively localized to make the core 11 difficult.
  • the magnetic body 15 by forming the magnetic body 15 with a material having a permeability equal to or higher than that of the material of the core 11, compared with the case where the magnetic body 15 is formed with a material having a permeability smaller than that of the core 11, The electromagnetic wave and the magnetic field of the above can be effectively attracted to the magnetic body to make it difficult to reach the core 11.
  • the electromagnetic wave and magnetic field from the outside can be effectively localized as compared with the case where the magnetic body having a smaller volume than the core 11 is provided,
  • the core 11 can be made difficult.
  • FIG. 7 the structure of the magnetic head 10B of the second embodiment will be described with reference to FIGS. 7 and 8.
  • FIG. 7 is an exploded perspective view of the magnetic head 10B.
  • a plan view of the magnetic head 10B is shown in (a)
  • a front view is shown in (b)
  • a side view is shown in (c).
  • the magnetic head 10B is composed of a two-channel regenerative magnetic head. As shown in FIG. 7, the magnetic head 10 ⁇ / b> B includes the core 11, the coil 12, the holder 13, the case 14, and the magnetic body 16. Among these, since it is the same as that of what was explained by a 1st embodiment except magnetic body 16, explanation is omitted.
  • each magnetic body 16 is composed of two pairs of magnetic pieces 16a, as shown in FIG.
  • Each magnetic piece 16a is formed of, for example, a magnetic material such as permalloy, sendust, ferrite, silicon steel, iron, aluminum, or stainless steel.
  • the material of the magnetic body 16 may be a material having a permeability equal to or higher than that of the material of the core 11 or may be a material having a permeability smaller than that of the material of the core 11.
  • the material of each magnetic body 16 is the same.
  • the thicknesses in the L and R directions of the magnetic body 16 are larger than the thicknesses in the L and R directions of the core 11. Further, when the core piece 11a and the magnetic piece 16a are viewed in the thickness direction (L and R directions), they have the same shape. That is, the magnetic body 16 has the same side shape as the core 11 (see FIG. 7). Furthermore, the volume of the magnetic body 16 is larger than the volume of the core 11.
  • the magnetic body 16 is disposed on the left side (L direction side) of the core 11 on the left side and the right side (R direction side) of the core 11 on the right side.
  • the magnetic body 16 and both side end portions of the cores 11 are engaged with the left and right groove portions 13 a of the holders 13. Thereafter, the core 11, the coil 12, the magnetic body 16, and the holder 13 are accommodated inside the case 14 from the lower side (D direction side), and the lower side of the case 14 is closed by a cover not shown. At this time, the upper portions of the magnetic pieces 16a may be cut so as to fit in the case 14.
  • the core 11, the coil 12, the magnetic body 16, and the holder 13 are fixed in the case 14. Further, the magnetic body 16 is disposed on one side (the case 14 side) of each core 11 in the case 14, and the magnetic body 16 is not present between the cores 11. That is, in the case 14, the cores 11 are sandwiched by the magnetic members 16.
  • the upper portion 11b of each core 11 and the upper portion of the case 14 are polished to form the contact surface 10s of the magnetic head 10B (see FIG. 8). Then, the magnetic head 10B is installed in the main body 1a of the magnetic recording medium processing apparatus 100 as in the above-described magnetic head 10A.
  • the electromagnetic wave and magnetic field from the outside are shielded to some extent in the case 14 of the magnetic head 10B, but a part of the electromagnetic wave and the magnetic field pass through the case 14 or pass through the opening 14a of the case 14 Enter the inside.
  • the electromagnetic wave and magnetic field entering the case 14 are distributed so as to be attracted to the magnetic body 16 on the side of the core 11 as shown by dotted lines in FIGS. Become.
  • the electromotive force generated in the coil 12 (FIG. 7) by the electromagnetic wave and magnetic field from the outside is reduced, and the noise superimposed on the read signal is reduced when the magnetic information of the magnetic card 20 is read.
  • the magnetic head 10B of the second embodiment and the magnetic recording medium processing apparatus 100 including the magnetic head 10B it is possible to reduce the influence of the electromagnetic wave and the magnetic field from the outside which cause noise. As a result, it is possible to improve the reading performance of the magnetic information to the magnetic card 20.
  • the magnetic body 16 is provided in the case 14 so as to sandwich the core 11, the size can be realized without changing the size of the magnetic head 10B or the case 14 from the conventional one. As a result, the magnetic head provided in the existing magnetic recording medium processing apparatus can be easily replaced with the magnetic head 10B of the second embodiment.
  • the magnetic body 16 is provided on one side (the L direction side or the R direction side) of the core 11, the magnetic body 15 is provided on both sides of the core 11 as in the first embodiment.
  • the internal structure of the magnetic head 10B can be simplified as compared with the case of FIG.
  • the thickness of the magnetic body 16 is equal to or greater than the thickness of the core 11, compared to the case where the thickness is thinner than the thickness of the core 11, electromagnetic waves and magnetic fields from the outside are effective. It can be unevenly distributed to make the core 11 difficult.
  • the side shape of the magnetic piece 16a constituting the magnetic body 16 is the same as the side shape of the core piece 11a constituting the core 11. Therefore, the same manufacturing equipment as the core piece 11a is provided.
  • the magnetic piece 16a can be manufactured using this, and the manufacturing efficiency can be improved.
  • the present invention can adopt various embodiments other than the embodiments described above.
  • the example which provided the magnetic bodies 15 and 16 which have volume larger than the volume of the core 11 in case 14 was shown in the above embodiment, this invention is not limited only to this.
  • magnetic bodies 17 and 18 having volumes smaller than the volume of the core 11 may be provided in the case 14.
  • the magnetic body 19 having the same thickness and volume as the thickness and volume of the core 11 may be provided in the case 14.
  • the influence of the electromagnetic wave and the magnetic field from the outside can be reduced, and as a result, the reading performance of the magnetic information to the magnetic card 20 can be improved.
  • the present invention is limited thereto. It is not a thing.
  • the magnetic body 17 disposed on the case 14 side of each core 11 and the magnetic body 18 disposed between each core 11 And the area, thickness, or volume of the side surface may be different.
  • each magnetic body 15 and 16 with the same material was given in 1st and 2nd embodiment, this invention is not limited only to this. Other than this, for example, the materials of the magnetic body disposed on the case 14 side of each core 11 and the magnetic body disposed between each core 11 may be different.
  • each core 11 is made of a material having a magnetic permeability larger than the magnetic permeability of the material of the magnetic material between the cores 11, the influence of electromagnetic waves and magnetic fields from the outside can be obtained. It can be effectively reduced.
  • the present invention is applied to the magnetic head 10 (10A to 10D) provided with two cores 11 and two coils 12 and reading magnetic information from the magnetic stripe 20s of the magnetic card 20 is shown.
  • the present invention can be applied to other than this, for example, to a magnetic head provided with one or more cores and one or more coils.
  • a coil may be disposed around the vertical portion 11 d (FIG. 5A) of the core 11.
  • the coil may be disposed in one of the vertical portions 11 d or may be disposed in both of the vertical portions 11 d.
  • the coil may be disposed across both the horizontal portion 11 c and the vertical portion 11 d of the core 11.
  • the present invention can be applied to a magnetic head which performs at least one of reading and writing of magnetic information to a magnetic recording portion of a magnetic recording medium such as a magnetic card or a passbook.
  • a magnetic head for writing magnetic information to a magnetic recording medium the writing performance can be improved.
  • the present invention can be applied to a small magnetic head that constitutes the magnetic stripe detection sensor 3.
  • the present invention is applied to the magnetic recording medium processing apparatus 100 for handling the magnetic card 20 provided with the magnetic stripe 20s on the back surface 20b .
  • the present invention can also be applied to, for example, a magnetic recording medium processing apparatus that handles a magnetic card having a magnetic stripe provided on at least one of the front surface and the back surface.
  • the present invention is also directed to a magnetic recording medium processing apparatus that performs at least one of reading and writing of magnetic information by a magnetic head to a magnetic recording medium such as a magnetic IC card or a passbook or the like provided with a magnetic stripe as well as a magnetic card. It is also possible to apply the present invention.
  • the present invention can read or read magnetic information from a magnetic recording medium, such as a card reader, a card reader / writer, a passbook reader, or a card reader, mounted on a card authentication terminal, mounted on a transaction processing apparatus such as ATM or CD.
  • a magnetic recording medium such as a card reader, a card reader / writer, a passbook reader, or a card reader, mounted on a card authentication terminal, mounted on a transaction processing apparatus such as ATM or CD.
  • the present invention can be generally used for magnetic recording medium processing devices that perform writing.

Landscapes

  • Magnetic Heads (AREA)

Abstract

La présente invention concerne une tête magnétique (10A) qui comprend un noyau (11), une bobine (12) disposée autour du noyau (11) et un boîtier métallique (14) permettant de stocker le noyau (11) et la bobine (12) lit les informations magnétiques à partir de la bande magnétique (20s) d'une carte magnétique (20). Des corps magnétiques (15) sont situés sur les côtés du noyau (11) à l'intérieur du boîtier (14). Avec les corps magnétiques (15), des ondes électromagnétiques externes et des champs magnétiques sont déviés de façon à ne pas atteindre le noyau (11).
PCT/JP2013/003523 2013-06-05 2013-06-05 Tête magnétique et dispositif de traitement de support d'enregistrement magnétique WO2014195993A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2015521178A JP6122494B2 (ja) 2013-06-05 2013-06-05 磁気ヘッド、磁気記録媒体処理装置
PCT/JP2013/003523 WO2014195993A1 (fr) 2013-06-05 2013-06-05 Tête magnétique et dispositif de traitement de support d'enregistrement magnétique
CN201410232983.1A CN104239837B (zh) 2013-06-05 2014-05-29 磁头、磁记录介质处理装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/003523 WO2014195993A1 (fr) 2013-06-05 2013-06-05 Tête magnétique et dispositif de traitement de support d'enregistrement magnétique

Publications (1)

Publication Number Publication Date
WO2014195993A1 true WO2014195993A1 (fr) 2014-12-11

Family

ID=52007670

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/003523 WO2014195993A1 (fr) 2013-06-05 2013-06-05 Tête magnétique et dispositif de traitement de support d'enregistrement magnétique

Country Status (3)

Country Link
JP (1) JP6122494B2 (fr)
CN (1) CN104239837B (fr)
WO (1) WO2014195993A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116030844B (zh) * 2023-03-27 2023-06-16 太阳神(珠海)电子有限公司 一种新型smt磁头的制造方法及其磁头

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127415U (ja) * 1982-02-22 1983-08-29 ティーディーケイ株式会社 磁気ヘツド
JPS63231712A (ja) * 1987-03-20 1988-09-27 Akai Electric Co Ltd 磁気ヘツドおよびその製造方法
JPH11353605A (ja) * 1998-06-08 1999-12-24 Alps Electric Co Ltd 磁気ヘッド

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0654527B2 (ja) * 1984-11-26 1994-07-20 ソニー株式会社 磁気ヘツド
JPH06103521A (ja) * 1992-09-21 1994-04-15 Canon Electron Inc 磁気記録再生素子
JP3851815B2 (ja) * 2001-12-28 2006-11-29 アルプス電気株式会社 磁気ヘッド装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127415U (ja) * 1982-02-22 1983-08-29 ティーディーケイ株式会社 磁気ヘツド
JPS63231712A (ja) * 1987-03-20 1988-09-27 Akai Electric Co Ltd 磁気ヘツドおよびその製造方法
JPH11353605A (ja) * 1998-06-08 1999-12-24 Alps Electric Co Ltd 磁気ヘッド

Also Published As

Publication number Publication date
JPWO2014195993A1 (ja) 2017-02-23
JP6122494B2 (ja) 2017-04-26
CN104239837B (zh) 2017-07-11
CN104239837A (zh) 2014-12-24

Similar Documents

Publication Publication Date Title
JP4644592B2 (ja) カード処理装置、およびデータ処理装置
US7607580B2 (en) Object sensor and IC card reader with the object sensor
US9626820B2 (en) Card reader
JP2017219971A (ja) カードリーダ
KR101930881B1 (ko) 연자기 특성신호와 경자기 특성신호를 모두 검출가능한 마그네틱헤드
WO2016006428A1 (fr) Lecteur de carte
JP6039070B2 (ja) 磁気記録媒体読取装置
WO2014195993A1 (fr) Tête magnétique et dispositif de traitement de support d'enregistrement magnétique
WO2016158952A1 (fr) Lecteur de carte
JP6324103B2 (ja) カードリーダ
JP4956152B2 (ja) センサ・タグの多面影像方式
JP5695204B2 (ja) 磁気記録媒体読取装置
JP5807123B2 (ja) 磁気記録媒体読取装置
US20230259722A1 (en) Secure cover with tamper resistant landing area
CN113302693B (zh) 磁识别传感器
JP2011249006A (ja) 磁気ヘッド及び媒体処理装置
JP2019053648A (ja) カードリーダ
JP6082824B2 (ja) 妨害磁界発生用ループアンテナを備えた磁気読取装置
JP2011219240A (ja) 平面状アンテナ付き棚装置
JP5655202B2 (ja) 磁気ヘッド装置
JP2015195024A (ja) カードリーダ
JP2015172801A (ja) 磁気情報読み取り装置及び磁気情報読み取り方法並びに自動取引装置
JP5358376B2 (ja) カードリーダの磁気ヘッド装置及びカードリーダの再読取方法
JP2019061398A (ja) 磁気センサユニットおよびカードリーダ
JP6456657B2 (ja) カードリーダ

Legal Events

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

Ref document number: 13886572

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2015521178

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13886572

Country of ref document: EP

Kind code of ref document: A1