CN203490762U

CN203490762U - Euro anti-counterfeiting magnetic head

Info

Publication number: CN203490762U
Application number: CN201320613523.4U
Authority: CN
Inventors: 陈炳君; 周桂良
Original assignee: YUEBAO ELECTRONIC INDUSTRY GENERAL Co SHENZHEN CITY
Current assignee: SHENZHEN YUEBAO ELECTRONIC TECHNOLOGY CO., LTD.
Priority date: 2013-09-29
Filing date: 2013-09-29
Publication date: 2014-03-19
Anticipated expiration: 2023-09-29

Abstract

The utility model discloses a euro anti-counterfeiting magnetic head. The euro anti-counterfeiting magnetic head comprises a housing and a magnetic core unit disposed in the housing, the magnetic core unit comprises an iron core seat, two oppositely disposed iron cores with a structure of U being anticlockwise rotated by 90 degrees and a coil holder are disposed in the iron core seat; lower end portions of the two iron cores are sleeved with the coil holder, a coil is wound on the coil holder, and two ends of the coil are connected to a circuit board respectively via two binding posts; and the bottom of the housing is covered with a shielding cover, the top of the housing is covered with a resin layer, upper end portions of the two iron cores pass through the resin layer and are exposed outside the resin layer, a gap is formed at the upper end portions of the two iron cores, and a non-magnetic-conduction separation sheet is clamped in the gap. The anti-counterfeiting magnetic head is of a single gap single magnetic circuit structure, a working face of the magnetic head is provided with a resin layer structure, and therefore euro authentic identification capability of a euro currency detector can be largely improved.

Description

A kind of Euro of false proof magnetic head

Technical field

The utility model relates to a kind of magnetic head, relates in particular to a kind of Euro of false proof magnetic head.

Background technology

Detection magnetic head on the tradition of domestic production Euro cash inspecting machine is former is the currency examine magnetic head for Renminbi, but the anti-counterfeiting information of Euro upper record and recording medium and Renminbi is different.The structure of this Renminbi currency examine magnetic head as shown in Figure 3, it includes housing 20, two iron cores 21, bobbin winder bracket, coil and binding post, two iron core 21 upper ends are through housing 20, two iron cores 21 be oppositely arranged and the two upper end between be provided with middle magnetic sheet 22, there is a spacer shims 23 upper end of two iron cores 21 with middle magnetic sheet 22 clampings separately, thereby form double slit gap, the magnetic head structure of twin coil, the magnetic head of this structure there will be following problem: 1, due to double slit gap, twin coil, when the two magnetic route structure that middle magnetic sheet and double-iron core form makes Euro through magnetic head workplace detected 2 times simultaneously, the signal of magnetic head output is twice superposed signal, distortion while causing Euro anti-counterfeiting information reading.2, Euro formed contour effects and magnetic gap signal phase superposition when a upper tracer signal wavelength characteristic contact with magnetic head soft magnetic material housing, during result formation and while addition and the fluctuating frequency of subtracting each other responds, distortion while also causing the anti-counterfeiting information reading Euro.

In conjunction with above some can find out, the detection magnetic head on Euro cash inspecting machine of domestic production at present read Euro anti-counterfeiting information have distortion, be not the anti-counterfeiting signal of Euro script, the false distinguishing ability of tradition Euro cash inspecting machine Euro is greatly reduced.

Utility model content

The technical problems to be solved in the utility model is, for the deficiencies in the prior art, a kind of Euro of false proof magnetic head proposed, this false proof magnetic head is the single magnetic structure in single gap, and the workplace of magnetic head is provided with resin bed structure, avoided an Euro anti-counterfeiting information to be read twice, and avoided Euro contacting with housing the impact on Euro anti-counterfeiting information of the contour effects that produces, thus greatly improve Euro cash inspecting machine to Euro false distinguishing ability.

For solving the problems of the technologies described above, the utility model adopts following technical scheme.

A kind of Euro of false proof magnetic head, it includes housing and is located at the magnetic core unit within housing, magnetic core unit includes iron core base, within this iron core base, be provided with two iron core and coil holders that are oppositely arranged and are コ shape structure, coil holder is sheathed on the bottom of two iron cores, the two ends that are wound with a coil and this coil on coil holder are connected to a wiring board by binding post respectively, the bottom of housing is covered with screening cover, the top of housing is covered with resin bed, the upper end of two iron cores is passed resin bed and is exposed to outside this resin bed, the upper end of two iron cores is formed with within gap and this gap and is folded with non-magnetic spacer shims.

Preferably, the upper surface of two iron cores and the surface of resin bed are positioned at same cambered surface.

Preferably, along the length direction of housing and be positioned at and be provided with successively two magnetic core unit within housing.

Preferably, the channel total length of two magnetic core unit is 61mm.

Preferably, the length of housing is 64mm, and the width of housing is 10.5mm, and the height of housing is 13.8mm.

Preferably, housing is fixed on erecting frame.

Preferably, between iron core base, two iron cores, by screw, be fixedly connected with.

Disclosed Euro of false proof magnetic head of the utility model, its beneficial effect is compared to existing technologies, between two iron cores, be only provided with a spacer shims, thereby form the single magnetic structure in single gap, avoided an Euro anti-counterfeiting information to be read twice, meanwhile, the workplace of magnetic head is provided with resin bed structure, avoided Euro contacting with housing the impact on Euro anti-counterfeiting information of the contour effects that produces, thus greatly improve Euro cash inspecting machine to Euro false distinguishing ability.

Accompanying drawing explanation

Fig. 1 is transverse sectional view of the present utility model.

Fig. 2 is longitudinal sectional view of the present utility model.

Fig. 3 is the transverse sectional view of existing currency examine magnetic head.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in more detail.

The utility model discloses a kind of Euro of false proof magnetic head, shown in Fig. 1 and Fig. 2, it includes housing 1 and is located at the magnetic core unit within housing 1, magnetic core unit includes iron core base 2, within this iron core base 2, be provided with two iron core 3 and coil holders 6 that are oppositely arranged and are コ shape structure, the iron core 3 of two コ shape structures can be combined into a shape, and the upper end of two iron cores 3 is respectively ramped shaped, the upper end of two iron cores 3 that are oppositely arranged with order is tip-shape, coil holder 6 is sheathed on the bottom of two iron cores 3, the two ends that are wound with a coil and this coil on coil holder 6 are connected to a wiring board 8 by binding post 7 respectively, the bottom of housing 1 is covered with screening cover 9, the top of housing 1 is covered with resin bed 5, the upper end of two iron cores 3 is passed resin bed 5 and is exposed to outside this resin bed 5, the upper end of two iron cores 3 is formed with within gap and this gap and is folded with non-magnetic spacer shims 4.

In Euro false proof magnetic head of said structure, between two iron cores 3, be only provided with a spacer shims 4, thereby form the single magnetic structure in single gap, avoided an Euro anti-counterfeiting information to be read twice and caused error detection, simultaneously, the upper end that the top of housing 1 is covered with resin bed 5 and two iron cores 3 forms working end through this resin bed 5, the principle of its contour elimination effect is, because soft magnetic material shell window width is larger, while testing Euro, profile effects is less, so traditional housing 1 top window is reached to maximum or the top of housing 1 is removed, with black resin, be filled in the top of housing 1 and form resin bed 5 again, polishing afterwards forms smooth workplace, the magnetic head of this structure, avoided Euro contacting produced contour effects with housing 1, thereby greatly improve Euro cash inspecting machine to Euro false distinguishing ability.

Resin bed 5 through polishing, makes the upper surface of two iron cores 3 and the surface of resin bed 5 be positioned at same cambered surface.

An Euro false proof magnetic head in the present embodiment is double-channel magnetic head, particularly, along the length direction of housing 1 and be positioned at and be provided with successively two magnetic core unit within housing 1, the channel total length of two magnetic core unit is 61mm, on this basis, the overall dimensions of this Euro of false proof magnetic head is: the length of housing 1 is 64mm, and the width of housing 1 is 10.5mm, the height of housing 1 is 13.8mm, and this housing 1 is fixed on erecting frame 10.

Within two iron cores 3 that are oppositely arranged are located in iron core base 2, between iron core base 2, two iron cores 3, by screw 12, be fixedly connected with.In existing product, between iron core and iron core base, conventionally by laser bonding, its face of weld is less, and the reliability of the two annexation is poor, and the utility model adopts screw 12 to achieve a fixed connection, and makes iron core 3 more firm with the annexation of iron core base 2.

Disclosed Euro of false proof magnetic head of the utility model, its manufacturing process is:

A, first binding post 7 is seated on coil holder 6, then the 1300 circle enameled wires of reeling on coil holder 6 with winder, two the end of a thread are bundled in respectively on 2 binding posts 7.

B, iron core base 2 are loaded onto iron core 3 and are hardened with resin is fixing, then at iron core 3 rear sleeve wire reeling racks 6, and between the upper end of two groups of iron cores 3, put into spacer shims 4, with three screws, above-mentioned part is tightened together.

C, the above-mentioned iron core having engaged, iron core base, coil holder and spacer shims assembly are packed in housing 1, the upper end of iron core 3 is stretched out from housing 1 front window, overhang is fixed.

D, first with plastic magnetic skull, entangle housing 1 front window, prevent that resin from flowing away, from housing 1 rear portion resin by injection, fill up space the high warm hardening in magnetic head, then with R grinding machine, workplace is ground to form to smooth arc surface.

E, on magnetic head back wire post 7, put wiring board 8, scolding tin is fixed.

F, by weld jig on screening cover 9 with the electric welding machine erecting frame 10 of burn-oning.

G, the aperture that lead-in wire 11 is passed on the screening cover 9 that is welded with erecting frame, and with electric soldering iron, lead-in wire one end is welded on wiring board 8 with scolding tin.

H, with laser machine, screening cover 9 is welded on housing 1 rear portion.

I, finished product magnetic head is carried out to performance test and visual examination, packing.

In disclosed Euro of false proof magnetic head of the utility model, between two iron cores 3, be only provided with a spacer shims 4, thereby form the single magnetic structure in single gap, avoided an Euro anti-counterfeiting information to be read twice, simultaneously, the workplace of magnetic head is provided with resin bed structure, has avoided Euro contacting with housing the impact on Euro anti-counterfeiting information of the contour effects that produces, thus greatly improve Euro cash inspecting machine to Euro false distinguishing ability.

More than the utility model preferred embodiment just, is not limited to the utility model, all modifications of making in technical scope of the present utility model, is equal to and replaces or improvement etc., all should be included in the scope that the utility model protects.

Claims

1. one kind of Euro of false proof magnetic head, it is characterized in that, include housing and be located at the magnetic core unit within housing, described magnetic core unit includes iron core base, within this iron core base, be provided with two iron core and coil holders that are oppositely arranged and are コ shape structure, described coil holder is sheathed on the bottom of two iron cores, the two ends that are wound with a coil and this coil on described coil holder are connected to a wiring board by binding post respectively, the bottom of described housing is covered with screening cover, the top of described housing is covered with resin bed, the upper end of two iron cores is passed resin bed and is exposed to outside this resin bed, the upper end of two iron cores is formed with within gap and this gap and is folded with non-magnetic spacer shims.

2. as claimed in claim 1 Euro of false proof magnetic head, is characterized in that, the upper surface of two iron cores and the surface of resin bed are positioned at same cambered surface.

3. as claimed in claim 1 Euro of false proof magnetic head, is characterized in that, along the length direction of housing and be positioned at and be provided with successively two magnetic core unit within housing.

4. as claimed in claim 3 Euro of false proof magnetic head, is characterized in that, the channel total length of two magnetic core unit is 61mm.

5. as claimed in claim 4 Euro of false proof magnetic head, is characterized in that, the length of described housing is 64mm, and the width of housing is 10.5mm, and the height of housing is 13.8mm.

6. as claimed in claim 1 Euro of false proof magnetic head, is characterized in that, described housing is fixed on erecting frame.

7. as claimed in claim 1 Euro of false proof magnetic head, is characterized in that, between described iron core base, two iron cores, by screw, is fixedly connected with.