CN101320568A - Magnetic head - Google Patents
Magnetic head Download PDFInfo
- Publication number
- CN101320568A CN101320568A CNA2007101085986A CN200710108598A CN101320568A CN 101320568 A CN101320568 A CN 101320568A CN A2007101085986 A CNA2007101085986 A CN A2007101085986A CN 200710108598 A CN200710108598 A CN 200710108598A CN 101320568 A CN101320568 A CN 101320568A
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- China
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- magnetic head
- flexible pcb
- coil former
- shielding box
- outside
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Abstract
The present invention provides a terminal which is used for authenticating a credit card. The terminal comprises a magnetic head which is used for reading the card data, and a magnetic head which can prevent a signal line incapable of being communicated with the magnetic head from illegally reading the card data. A shield box (1), which is generally shaped like a box and is provided with an opening on one side, is provided with a coil frame (2) with a wound wire; thus a chip component (6a) with one end protruding from the coil frame (2) can extend out of the shield box (1) through a through-hole which is arranged on the opposite side to the opening part (1c); a terminal pin (3) is arranged in the shield box (1) and is connected with the coil of the coil frame (2); resin (8) is filled in the gap of the shield box (1) to form the magnetic head (A); the terminal pin (3) is arranged in the resin (8) filled in the shield box (1) and is connected with the signal line at one end of a flexible circuit board (4); and the other end of the flexible circuit board (4) is communicated with the outside through the opening part (1c).
Description
Technical field
The present invention relates in card reader etc., carry out the magnetic head of usefulness such as signal reads as the magnetic card of medium.Relate in particular to and to prevent from the card data to be stolen the magnetic head of reading by trick.
Background technology
In recent years, owing to popularizing of the credit card that constitutes by above-mentioned magnetic card, utilize this credit card that the commodity of buying are settled accounts and become very frequent.Specifically, credit card is inserted the card insert opening of the Card Verification terminating machine of the StoreFront that is positioned at each shop, read the card data of client's credit card by the card reader of being located at this Card Verification terminating machine, after the owner of this credit card inputs password, inquire about, confirm in person and clearing.
On such Card Verification terminating machine, when above-mentioned card reader reads the card data, use magnetic head B as shown in Figure 7.Such magnetic head B is, two magnetic cores 23 of in shielding box 22, packing into and constituting by magnetic material, these two magnetic cores 23 are docked, form at joint gapped 26, magnetic recording medium sliding surface at this shielding box 22 is provided with peristome, the leading section that is formed with above-mentioned gap 26 on the magnetic core 23 slides credit card and reads thus in the face of this peristome on this leading section.
And the other end of these magnetic cores 23 is inserted into the both sides that are located at the coil former 25 in the shielding box 22 respectively, is supported by supporter 24 magnetic cores 23 and is fixed in the shielding box 22.In addition, the gap in this shielding box 22 is filled with epoxy resin, make with above-mentioned coil former 25 on the terminal pins that is connected of coil 27 give prominence to downwards below this shielding box 22 as being used for the outside terminal that is connected.Usually, on these two terminal pins 27, an end of signal wire is installed, makes it and read, write control circuit links to each other.The magnetic head that structure is identical is recorded in patent document 1 (TOHKEMY 2002-157702 communique) therewith.
On the other hand, in recent years, utilize forged credit card to carry on business and use the card data to carry out ecommerce etc. on the internet, its payment is constantly taken place by the criminal offence of regular holder's payment of credit card, becomes social concern.Forged credit card or when carrying out ecommerce on the internet employed card data are non-holders of holding malice on the Card Verification terminating machine that is arranged at the place that carries on business with credit card, the personal information that obtains from other people credit card wrongly.
The card data are obtained by improper like this.With above-mentioned Card Verification terminating machine Kaifeng, on the terminal pins that protrudes in the outside terminal for connecting of conduct below the magnetic head in this Card Verification terminating machine, with welding or clip its terminal with the data acquisition device that is provided with in addition is communicated with, will be when carrying out regular way settlement through the storer of card data storage in this data acquisition device of terminal pins.Certainly, such behavior is unallowed.
Summary of the invention
Therefore, the present invention provides a kind of such magnetic head in view of such circumstances, and this magnetic head is used for above-mentioned Card Verification terminating machine, can read the card data, and the card data that read can not obtained wrongly from the signal wire that this magnetic head is derived.
The invention of technical scheme 1, it is a kind of magnetic head, in box-shaped roughly, in the shielding box of an opening, the coil former of the electric wire of having reeled is set, make an end from the outstanding core components of this coil former from exposing to the shielding box outside with the open-work of being located at the face relative with described peristome, the outside terminal that connects that is used for that is connected with the coil of described coil former is set, thereby resin fill to the gap in the shielding box is formed, it is characterized in that, be used in the potting resin of inside that the outside terminal that connects is located at shielding box described, be used for connecting on the outside terminal that connects the signal wire of an end of flexible PCB at this, the other end of this flexible PCB is exported to the outside from described peristome.
The invention of technical scheme 2, it is a kind of magnetic head, in box-shaped roughly, in the shielding box of an opening, the coil former of the electric wire of having reeled is set, make an end from the outstanding core components of this coil former from exposing to the shielding box outside with the open-work of being located at the face relative with described peristome, the outside terminal that connects that is used for that is connected with the coil of described coil former is set, thereby resin fill to the gap in the shielding box is formed, it is characterized in that, the described terminal that is used for outside connection is located at the flange of coil former both sides, with the opposition side of described peristome, described core components stretches out from the both sides of coil former both sides
At this signal wire that is used for connecting on the outside terminal that connects an end of flexible PCB, the other end of this flexible PCB is derived from described peristome.
The invention of technical scheme 3 covers the periphery of described flexible PCB with protective seam, described protective seam is to be sticked with minimum gap by the lead that is connected to break detection circuit to form.In addition, the invention of technical scheme 4 is made three-decker with described flexible PCB, have described signal wire the layer above and below on protective seam is set respectively, described protective seam is to stick with break detection circuit with minimum gap to be formed by connecting.
Each invention by technical scheme 1,2,3 and 4, owing to be provided for the outside terminal that connects in the inboard of magnetic head, be connected with flexible PCB at this place, even thereby the third party wants to steal the card data from this magnetic head, if this magnetic head is not decomposed, then can't with the terminal of data acquisition device be used for the outside terminal connection that is connected.Therefore, the third party with wrongful purpose from this magnetic head obtain the card data be very the difficulty.
In addition, in magnetic head in the past, because shaft-like terminal is used as being used for the outside terminal that connects, therefore in the back operation or the installation procedure after the shipment in factory, because the conduction of the heat of the flatiron when being welded to signal wire on this shaft-like terminal and heat, the fusing of the welding portion of coil, the pressure that may damage the finger that electrically contacts or produce during because of welding makes this shaft-like terminal bends, and the handling part of winding may be not anti-do not lived bounce and is broken.But by adopting magnetic head of the present invention, the terminal connecting portion leaves peristome, be used for the inboard that the outside terminal that connects is positioned at shielding box, be fixed by resin, therefore, above-mentioned pressure can not be applied to and be used for the outside terminal that connects and the connecting portion of coil, thereby can prevent above-mentioned broken string.
Invention according to technical scheme 3; because the periphery of described flexible PCB is covered with protective seam; described protective seam is to be sticked with minimum gap by the lead that is connected to break detection circuit to form; perhaps; invention according to technical scheme 4; because described flexible PCB is made three-decker; have described signal wire the layer above and below on protective seam is set respectively; described protective seam is to stick with break detection circuit with minimum gap to be formed by connecting; even thereby the third party wants to be connected with above-mentioned flexible PCB; obtain the card data of credit card; before connecting signal wire; contact with the lead of protective seam and to make this conductor cord disconnection; or send signal to break detection circuit by the changes in resistance of this position, be detected unusually, thereby it is very difficult to obtain the card data.
Description of drawings
Fig. 1 is the sectional side view of the magnetic head of embodiments of the invention.
Fig. 2 is the exploded perspective view of structure of the magnetic head of expression embodiments of the invention.
Fig. 3 is the sectional front view of the magnetic head of embodiments of the invention.
Fig. 4 is the stereographic map from the state of the magnetic head of beneath embodiments of the invention.
Fig. 5 is the stereographic map that the flexible PCB of the three-decker of the magnetic head of embodiments of the invention is resolved into three layers state.
Fig. 6 is the structural drawing of flexible PCB of three-decker of the magnetic head of embodiments of the invention.
Fig. 7 is the cut-open view of magnetic head in the past.
Embodiment
In box-shaped roughly, in the shielding box of an opening, the coil former of the electric wire of having reeled is set, make an end from the outstanding core components of this coil former from exposing to the shielding box outside with the open-work of being located at the face relative with above-mentioned peristome, the outside terminal that connects that is used for that is connected with the coil of above-mentioned coil former is set, thereby in the magnetic head that the gap of resin fill to the shielding box formed, be used in the potting resin of inside that the outside terminal that connects is located at shielding box above-mentioned, be used for connecting on the outside terminal that connects the signal wire of an end of flexible PCB at this, the other end of this flexible PCB is exported to the outside from above-mentioned peristome.Thus, the terminal with the data acquisition device connects relatively difficulty with the outside terminal that is connected that is used for of this magnetic head.
Below, embodiments of the invention are described with reference to the accompanying drawings.
Fig. 1 is the sectional side view of magnetic head of the present invention.Fig. 2 is the exploded perspective view of the structure of expression magnetic head of the present invention.Fig. 3 is the sectional front view of magnetic head of the present invention.
As Fig. 1, Fig. 2 and shown in Figure 3, the magnetic head A of embodiments of the invention, be in the shielding box 1 of roughly rectangular shape and lower opening, laterally and the coil former 2 of a plurality of electric wire 2a that reeled of row arrangement, be respectively equipped with terminal pins 3 as outside terminal for connecting (quantity of the coil former 2 that disposes is different) on the upper surface of the flange part 2b at the two ends of these coil formers 2 in Fig. 1 and Fig. 2.Corresponding with the position of these terminal pins 3, at an end of flexible PCB 4, set in advance the hole 4a that connects the signal wire end, in the 4a of these holes, embed above-mentioned terminal pins 3 respectively, connect with scolding tin.
And, the other end of these flexible PCBs 4 is hung down from a side of the above-mentioned coil former that is arranged side by side 2.After carrying out like this, make that 2 groups (with reference to Fig. 2) remain in that the front is roughly in the retainer 5 of hook-type, positive core components 6a for コ font roughly respectively from coil former 2 mutually over against the left and right sides insert, above the coil former 2 of the end that connected flexible PCB 4, butt joint, thereby form core 6.And, cover above-mentioned shielding box 1 from it, the gap 6b of above-mentioned core 6 is partially submerged among 2 OBL through hole 1a on being set up in parallel in advance on this shielding box 1, expose to the outside.
After this, in the through hole 1b that is located at these shielding box 1 one sides, bolt 7 screwed or unscrew retainer 5 is moved, above-mentioned gap 6a is adjusted to only position.And the peristome 1c below this shielding box 1 exports to the outside with the other end of above-mentioned flexible PCB 4, and the gap potting resin 8 in this shielding box 1 in the whole zone is fixing with coil former 2, retainer 5, core 6 etc.Thus, and the above-mentioned terminal pins 3 of an end in contact of flexible PCB 4 is not structurally exposed outside between coil former 2 and core 6.
Next, above-mentioned flexible PCB 4 is described.Fig. 4 is the stereographic map from the state of the magnetic head A of beneath embodiments of the invention.Fig. 5 is the stereographic map that the flexible PCB 4 of the three-decker of magnetic head A of the present invention is resolved into three layers state.Fig. 6 is the structural drawing of flexible PCB 4 of the three-decker of magnetic head A of the present invention.
This flexible PCB 4 is certain width and certain shape; as shown in Figure 5; in the above with following on, protective seam is set respectively makes this flexible PCB 4 have three-decker, on described protective seam, dispose the made lead of wire Copper Foil 9 in length and breadth decorative pattern be set with minimum gap.In this flexible PCB 4; following protective seam is ground floor 4b; top protective seam is the 3rd layer of 4d; second layer 4c between this ground floor 4b and the 3rd layer of 4d is the signal line layer that transmits from the signal of magnetic head A, and the almost gapless wiring of passing through above-mentioned lead 9 of ground floor 4b and the 3rd layer of 4d is set up with the form that can cover the signal wire 15 on the second layer 4c effectively.
In addition, the other end of the flexible PCB 4 of this three-decker is provided with stiffening plate 4f (with reference to Fig. 4) in the upper surface of the 3rd layer of 4d bonding, is provided with the outside terminal 4e that connects that is used for described later in the position corresponding with this stiffening plate 4f.As shown in Figure 6, the dotted line on ground floor 4b and the 3rd layer of 4d is represented lead 9, and expression is used to detect the wiring of damaged portion short circuit.In addition, the heavy line of second layer 4c is represented the signal wire 15 of magnetic head, and fine line represents to get in touch the wiring of each interlayer.
The other end at the second layer 4c of this flexible PCB 4 is provided with 10 outside end 4e of connection, there is above-mentioned stiffening plate these outside behinds that connect end 4e, wherein, 2 outside end 4e (4e of the left and right sides of second layer 4c among Fig. 6) that connect of each of both sides are connected with the lead 9 of the 3rd layer of 4d with above-mentioned ground floor 4b, constitute a loop that is connected with break detection circuit 12 on the control circuit board 10 by connector 11 thus.Remaining 6 the outside end 4e (the remaining 4e of second layer 4c among Fig. 6) that connect are connected with the above-mentioned signal wire 15 of the second layer 4c that has been connected said head A, are connected by the reading of connector 11 and above-mentioned control circuit board 10, write circuit 13.
When the result who does like this, third party's desire of holding malice are connected to the terminal of data acquisition device (omitting diagram) on the terminal pins 3 of magnetic head A, must this magnetic head A be decomposed fully,, then magnetic head A must be assembled further if magnetic head A is decomposed, very bothersome.
In addition, when desire is connected with the signal wire 15 of the second layer 4c of the flexible PCB 4 that extends from magnetic head A, be positioned at this second layer 4c up and down ground floor 4b or the lead 9 of the conduct of the 3rd layer of 4d wiring that is used for burn out detection for example by under the situation with solder horn or the breakage of awl head, this resistance that is used for the wiring of burn out detection changes immediately, perhaps this is used for the wiring broken string of burn out detection, these signals are passed to break detection circuit 12, and alarm is rung, and make people know the generation of emergency situation.Thus, also be difficult to obtain the card data from flexible PCB 4.
In addition; as the noise countermeasure; adopt general shield technology; on lead 9, in above-mentioned Card Verification terminal device work, because in order to make above-mentioned break detection circuit 12 actions that little electric current is flow through as the ground floor 4b of protective seam or the 3rd layer of 4d; the ratio signals layer (second layer 4c) that its electrical impedance is set is low; thereby for extraneous noise, compare with the wiring of the flexible PCB 4 of individual layer only, can expect to obtain more high-quality shield effectiveness.
Though put down in writing the concrete structure of flexible PCB 4 in the above-described embodiments, but the structure of flexible PCB 4 is not limited to this, so long as with read, write circuit 13 and break detection circuit 12 is connected, can transmit signal swimmingly, also can be other structure.
And, in the flexible PCB 4 of three-decker, be above-mentioned ground floor 4b to be linked to each other with the 3rd layer of 4d constitute the circuit of 1 ring-type, they can certainly each layer as a circuit independently, in this case, be connected with one or more break detection circuits 12 from each circuit.
Claims (4)
1. magnetic head, in shielding box box-shaped, an opening roughly, the coil former of the electric wire of having reeled is set, make an end from the outstanding core components of this coil former from exposing to the shielding box outside with the open-work of being located at the face relative with described peristome, the outside terminal that connects that is used for that is connected with the coil of described coil former is set, thereby resin fill to the gap in the shielding box is formed, it is characterized in that
The described terminal that is used for outside connection is located in the potting resin of shielding box inside,
Be used for connecting on the outside terminal that connects the signal wire of an end of flexible PCB at this,
The other end of this flexible PCB is exported to the outside from described peristome.
2. magnetic head, in shielding box box-shaped, an opening roughly, the coil former of the electric wire of having reeled is set, make an end from the outstanding core components of this coil former from exposing to the shielding box outside with the open-work of being located at the face relative with described peristome, the outside terminal that connects that is used for that is connected with the coil of described coil former is set, thereby resin fill to the gap in the shielding box is formed, it is characterized in that
Be used for the flange that the outside terminal that connects is located at the coil former both sides with described, with the opposition side of described peristome, described core components stretches out from the both sides of coil former both sides,
Be used for connecting on the outside terminal that connects the signal wire of an end of flexible PCB at this,
The other end of this flexible PCB is derived from described peristome.
3. as each described magnetic head of claim 1 or 2, it is characterized in that the periphery of described flexible PCB is covered with protective seam, and described protective seam is to be sticked with minimum gap by the lead that is connected to break detection circuit to form.
4. as each described magnetic heads of claim 1 or 2; it is characterized in that; described flexible PCB is made three-decker, have described signal wire the layer above and below on protective seam is set respectively, described protective seam is to stick with break detection circuit with minimum gap to be formed by connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101085986A CN101320568A (en) | 2007-06-08 | 2007-06-08 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101085986A CN101320568A (en) | 2007-06-08 | 2007-06-08 | Magnetic head |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101719158A Division CN101673553B (en) | 2007-06-08 | 2007-06-08 | Magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101320568A true CN101320568A (en) | 2008-12-10 |
Family
ID=40180580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101085986A Pending CN101320568A (en) | 2007-06-08 | 2007-06-08 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101320568A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109635605A (en) * | 2019-01-10 | 2019-04-16 | 苏州星火磁电技术有限公司 | A kind of magnetic card magnetic head of new construction |
-
2007
- 2007-06-08 CN CNA2007101085986A patent/CN101320568A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109635605A (en) * | 2019-01-10 | 2019-04-16 | 苏州星火磁电技术有限公司 | A kind of magnetic card magnetic head of new construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING TAIHE MAGNETIC RECORDING PRODUCTS CO., LTD Free format text: FORMER OWNER: TEKLEK CO., LTD. Effective date: 20090918 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20090918 Address after: No. 157, village north, Yongtai Zhuang village, Haidian District, Beijing Applicant after: Beijing Tech Magnetic Record Making Co., Ltd. Address before: Kanagawa Applicant before: Techreco Company |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081210 |