CN201149717Y - Anti-theft sound magnetic label using hard magnetic off-set piece - Google Patents
Anti-theft sound magnetic label using hard magnetic off-set piece Download PDFInfo
- Publication number
- CN201149717Y CN201149717Y CNU2008200033999U CN200820003399U CN201149717Y CN 201149717 Y CN201149717 Y CN 201149717Y CN U2008200033999 U CNU2008200033999 U CN U2008200033999U CN 200820003399 U CN200820003399 U CN 200820003399U CN 201149717 Y CN201149717 Y CN 201149717Y
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- magnetic
- bias sheet
- label
- hard magnetic
- magnetic bias
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Abstract
The utility model relates to a bias plate hard magnet theftproof acoustic-magnetic label made of hard magnet material, comprising a box body and a magnetic bias plate; a resonance plate is arranged in the hollow cavity of the box body; a box cover composed of a double-surface adhesive and an upper cover film is covered on the box body; the upper cover film, the magnetic bias plate and the resonance plate are in staggered arrangement; the magnetic bias plate is a hard magnet bias plate; the direct current coercive force of the bias plate is more than 125 oersted; at least a resonance plate is arranged in the hollow cavity of the box body. The bias plate hard magnet theftproof acoustic-magnetic label has the advantages of convenient machining, simple structure, reasonable design, avoiding the external magnetic material from changing the magnetism of the hard magnet material through the high coercive force, high stability and reliability, improving the work efficiency greatly and providing convenience for the factories which produce acoustic-magnetic clamps.
Description
Technical field
The utility model relates to a kind of commercial burglar alarm, especially relates to the anti-theft audio magnetic label that a kind of bias slice adopts hard magnetic material to make.
Background technology
The sound magnetic technology has been widely used in electronic item and has monitored that anti-theft device reached for two more than ten years, the U.S. Pat 4510489 of putting down in writing original invention discloses some amorphous alloy material strip because of having very high magnetic-elasticity coupling coefficient, so can send the strong resonance signal, and utilize this principle that these materials successfully are applied to commercial burglary-resisting system (sound magnetic system), as the burglary-resisting system of large supermarket.The sound magnetic system mainly comprises detector, demoder, anti-theft audio magnetic target etc.Present anti-theft audio magnetic target can be divided into two kinds: anti-theft audio magnetic folder and anti-theft audio magnetic label, and both all use amorphous ribbon as resonance plate, and the crystalline state magnetic material is as bias slice.Anti-theft audio magnetic folder adopt permanent magnetic material be the direct current coercive force then greater than 10000A/m (125 oersted) magnetic material (for example permanent-magnet ferrite) as bias slice, resonance plate and bias slice separate stack respectively and are placed in the cavity of a clamp.This type of anti-theft audio magnetic target can not be decoded, can only reuse in the inside, shop, so all be provided with the mechanical needle locking device on the anti-theft audio magnetic folder, after commodity have been paid money, take off anti-theft audio magnetic folder by special tool to open mechanical needle locking device, allow commodity leave the shop and do not trigger the doorway alarm.Support the sound magnetic folder that can produce above-mentioned integral body except news are beautiful earlier at present, resonance plate that the half-cooked product of other magnetic producer must have and bias slice can be made magnetic folder.But other magnetic folder manufacturer does not possess the ability of making qualified resonance plate and bias slice, and the audio magnetic label that therefore need obtain independent anti-demagnetization is put into or pasted into the mechanical needle locking device and make magnetic folder.There is not desirable like this label to use but there is no in the market.So have to substitute use reluctantly with the soft label of existing sound magnetic.It is that the direct current coercive force then is situated between less than 10000A/m (125 oersted) greater than the magnetic material between the 1000A/m (12.5 oersted) as bias slice that the present soft label of sound magnetic all adopts half-hard magnetic material, for example interrogate the DR label of U.S. money earlier, the original purposes of this class anti-theft audio magnetic label (hereinafter to be referred as audio magnetic label) is to decode repeatedly and to activate, and the method for audio magnetic label by demagnetization decoding on demoder on the commodity of money of having paid allows commodity leave the shop and can not trigger the alarm on doorway.But the warning piece that is used as the permanent sound magnetic folder that uses then exists and is easy to be caused magnetic to press from both sides the critical defect that lost efficacy by demagnetization.Existing audio magnetic label (referring to U.S. Pat 6359563) as shown in Figure 1, 2, comprise a long and narrow plastic box body and lid lid thereon, lid is formed by stacking by the bias slice and the hypophragm of last epiphragma, double faced adhesive tape, half-hard magnetic material from top to bottom successively, the resonance plate of the mutual superposition that above size of placement a slice or a slice and box body are complementary in the cavity of box body, the horizontal archwise of resonance plate, wherein bias slice is the parallelogram or the parallelogram of chamfering.Existing audio magnetic label all adopts half-hard magnetic material to make bias slice; if make magnetic folder with the DR label reluctantly; can not excite the alarm on doorway, shop when making protected commodity be taken out of the shop because the interference change of the enough external magnets of energy or the magnetic of elimination anti-theft audio magnetic label, the feasible sound magnetic that this anti-theft audio magnetic label is housed are pressed from both sides inefficacy.Thereby abrogated the defencive function of sound magnetic folder.Another alternative is that magnetic folder producer does not adopt the parts of DR label as warning usefulness, but adopts a kind of LC oscillatory circuit, and when the frequency in the external world reached near the resonance frequency 58KHz of LC oscillatory circuit, these LC parts will excite alarm.Yet thisly utilize circuit to be subjected to external interference very easily and shielded as warning member; as using metal objects near this label; the coil parameter of the LC oscillatory circuit in the label or capacitance parameter are with regard to corresponding change; cause resonance frequency to change; and can not resonate with the alarm on doorway, shop; cause alarm, can make the folder of reporting to the police lose defencive function equally.
The utility model content
The utility model fundamental purpose is to overcome the instability when uttering a word the magnetic folder of semihard magnetosonic magnetic label in the above-mentioned prior art, provide a kind of simple in structure, cost is low, easy to process, save material, be difficult to demagnetization, be difficult to conductively-closed, the anti-theft audio magnetic label of employing hard magnetic material bias slice that resonant frequency is stable offers the purposes that warning member is done by the half-cooked product of magnetic producer.
Another purpose of the utility model provides a kind of anti-theft audio magnetic folder that the anti-theft audio magnetic label of above-mentioned hard magnetic material bias slice is housed, its dependable performance can make the manufacturer of production sound magnetic folder obtain obtaining good effect, good interference free performance behind this audio magnetic label.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: a kind of anti-theft audio magnetic label that adopts the hard magnetic bias sheet, comprise box body, the magnetic bias sheet, the resonance plate that is provided with in the cavity of box body, be stamped the lid of forming by double faced adhesive tape and last epiphragma on the box body, the described epiphragma of going up, magnetic bias sheet and resonance plate are layered arrangement, it is characterized in that: described magnetic bias sheet is the hard magnetic bias sheet, the direct current coercive force of this bias slice is greater than 125 oersteds, described resonance plate is at least a slice, the thickness of described hard magnetic bias sheet is less than 0.5 millimeter, and the gross thickness of the anti-theft audio magnetic label of described employing hard magnetic bias sheet is less than 0.8 millimeter.Box body can be thin-and-long or other shapes.The hard magnetic bias sheet adopt laminar hard magnetic material be the direct current coercive force then more than or equal to the magnetic material of 10000A/m (125 oersted), as NdFeB, FeCrCo, FeCoV, CuNiFe, FeMnW waits material to make.Because the hard magnetic material that adopts has the characteristic of high direct current coercive force and high direct current remanent magnetism, thereby the magnetic of this audio magnetic label is difficult to eliminate, and can not be subjected to the interference of extraneous magnetic medium, can guarantee the effect of reporting to the police well, and not stolen commodity person destroys.
As preferably, described hard magnetic bias sheet is arranged on outside the cavity of box body.On the hard magnetic bias sheet can be arranged at the bottom of lid or the box.
As preferably, described hard magnetic bias sheet is located at the below of lid, is provided with hypophragm between described hard magnetic bias sheet and the resonance plate.The utility model also can be provided with epiphragma both are separated as original most audio magnetic label between hard magnetic bias sheet and resonance plate, make that the clamping action of hard magnetic bias sheet and resonance plate is littler.
As preferably, described hard magnetic bias sheet and resonance plate are rectangle.Hard magnetic bias sheet and resonance plate also can manufacture other ribbons, because hard magnetic bias sheet and resonance plate are straight rectangle, make more simple, convenience, greatly reduce production cost.
As preferably, described resonance plate the best is 2 or 3.
As preferably, described hard magnetic bias sheet adopts the direct current coercive force to make more than or equal to the magnetic material of 2000 oersteds.
As preferably, the thickness of described hard magnetic bias sheet is less than 0.1 millimeter.
As preferably, the gross thickness of the anti-theft audio magnetic label of described employing hard magnetic bias sheet is less than 3 millimeters.
As preferably, the anti-theft audio magnetic label of described employing hard magnetic bias sheet has at least an outside surface to scribble viscose glue, makes described label can be bonded on the magnetic folder.
Therefore, the utlity model has following characteristics: 1. simple in structure, reasonable in design; 2. bias slice adopts hard magnetic material to make, and raw material easily obtains, and cost is low, bias slice and resonance plate can adopt simple straight rectangular configuration, easy to process, the high-coercive force of hard magnetic material can effectively be avoided the change of extraneous magnetic material to its magnetic, so more reliable and more stable; 3. changed that anti-theft audio magnetic folder is in the past installed or resonance plate and bias slice must have been disperseed to stack primitive method in the cavity of anti-theft audio magnetic folder when changing resonance plate and bias slice, employing is with the mode of resonance plate and bias slice integral installation or integral replacing, improved work efficiency greatly, the producer of pressing from both sides for production sound magnetic provides convenience.
Description of drawings
Accompanying drawing 1 is existing audio magnetic label explosive view;
Accompanying drawing 2 is existing audio magnetic label cross-sectional views;
Accompanying drawing 3 is structural representations of enforcement 1 example of the present utility model;
Accompanying drawing 4 is sectional views of enforcement 1 example of the present utility model;
Accompanying drawing 5 is that the utility model is installed in a kind of application synoptic diagram in the clothes anti-theft audio magnetic folder;
Accompanying drawing 6 is that the utility model is installed in a kind of application synoptic diagram in the CD box.
Symbolic representation among the figure: 1, hard magnetic bias sheet, 2, resonance plate, 3, box body, 4, hypophragm, 5, lid, 6, cavity, 7, double faced adhesive tape, 8, bias slice, 9, upper clip, 10, lower clamping piece, 11, audio magnetic label, 12, groove, 13, clothes anti-theft audio magnetic folder, 14, CD box, 15, mechanical needle lock, 16, go up epiphragma.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 3, Figure 4, a kind of anti-theft audio magnetic label that adopts the hard magnetic bias sheet, the box body 3 that comprises a rectangular shape, box body 3 is made by plastic materials such as PS, two resonance plates 2 have been kept flat in the cavity 6 of box body 3, cavity 6 be shaped as cuboid, hard magnetic bias sheet 1 be shaped as straight rectangle.Hard magnetic bias sheet 1 is placed in the top of resonance plate 2, the shape of two resonance plates 2 and size are basic identical, be straight rectangle, and the horizontal section of the shape of resonance plate 2 and cavity 6 be complementary (referring to accompanying drawing 4), the area of plane of hard magnetic bias sheet 1 is preferably less than the area on the plane of the cavity 6 of box body 3, so that provide resonant space for hard magnetic bias sheet 1.The end face of box body 3 is stamped lid 5, lid 5 is made up of double faced adhesive tape 7 and last epiphragma 16, double faced adhesive tape 7 is located at the lower surface of epiphragma 16, between hard magnetic bias sheet 1 and resonance plate 2, be provided with hypophragm 4, with hard magnetic bias sheet 1 outside the cavity of putting at box body 36, described upward epiphragma 16 and hypophragm 4 are the straight rectangles of a slice, and its size is bigger slightly than the horizontal section of box body 3.
When the anti-theft audio magnetic label of the utility model hard magnetic bias sheet is used for commodity or other article anti-thefts, both can have used separately also and can be combined into the use of anti-theft audio magnetic folder with theft-prevention clamp.Accompanying drawing 5 is installed in a kind of application in the toggery anti-theft audio magnetic folder 13 for the utility model, this anti-theft audio magnetic folder 13 comprises upper clip 9 and lower clamping piece 10, upper clip 9 or lower clamping piece 10 relative folder faces are provided with the groove 12 that big I is placed audio magnetic label 11, can certainly have the groove 12 that big I is placed audio magnetic label 11 simultaneously on the relative folder face of upper clip 9 and lower clamping piece 10, audio magnetic label 11 is placed in the grooves 12.As shown in Figure 5, after anti-theft audio magnetic label 11 is placed in the groove 12 of upper clip 9, by mechanical needle lock 15 upper clip 9 and lower clamping piece 10 clampings are included in its inside with audio magnetic label 11 then.Can overall time when audio magnetic label 11 is not only installed pack in the anti-theft audio magnetic folder 13, but also can wholely as required take out and change.Accompanying drawing 6 is installed in a kind of application in the CD box 14 for the utility model, and described audio magnetic label 11 is settled in the bottom in this CD box 14, and this audio magnetic label 11 can take out and change as required.
Claims (9)
1. anti-theft audio magnetic label that adopts the hard magnetic bias sheet, comprise box body, magnetic bias sheet, the resonance plate that is provided with in the cavity of box body, be stamped the lid of forming by double faced adhesive tape and last epiphragma on the box body, described epiphragma, magnetic bias sheet and the resonance plate gone up is layered arrangement, it is characterized in that: described magnetic bias sheet is hard magnetic bias sheet (1), and the direct current coercive force of this bias slice is greater than 125 oersteds, and described resonance plate (2) is at least a slice.The thickness of described hard magnetic bias sheet (1) is less than 0.5 millimeter, and the gross thickness of the anti-theft audio magnetic label of described employing hard magnetic bias sheet is less than 0.8 millimeter.
2. the anti-theft audio magnetic label of employing hard magnetic bias sheet according to claim 1 is characterized in that: described hard magnetic bias sheet (1) is arranged on outside the cavity (6) of box body (3).
3. the anti-theft audio magnetic label of employing hard magnetic bias sheet according to claim 1 and 2 is characterized in that: described hard magnetic bias sheet (1) is located at the below of lid (5), is provided with hypophragm (4) between described hard magnetic bias sheet (1) and the resonance plate (2).
4. according to the anti-theft audio magnetic label of claim 1 or 2 or 3 described employing hard magnetic bias sheets, it is characterized in that: described hard magnetic bias sheet (1) and resonance plate (2) are rectangle.
5. the anti-theft audio magnetic label of employing hard magnetic bias sheet according to claim 4 is characterized in that: described resonance plate (2) is 2 or 3.
6. the anti-theft audio magnetic label of employing hard magnetic bias sheet according to claim 1 is characterized in that: described hard magnetic bias sheet (1) adopts the direct current coercive force then to make more than or equal to 2000 oersted magnetic materials.
7. the anti-theft audio magnetic label of employing hard magnetic bias sheet according to claim 1 is characterized in that: the thickness of described hard magnetic bias sheet (1) is less than 0.1 millimeter.
8. the anti-theft audio magnetic label of employing hard magnetic bias sheet according to claim 1 is characterized in that: the gross thickness of the anti-theft audio magnetic label of described employing hard magnetic bias sheet is less than 3 millimeters.
9. the anti-theft audio magnetic label of employing hard magnetic bias sheet according to claim 1 is characterized in that: the anti-theft audio magnetic label of described employing hard magnetic bias sheet has at least an outside surface to scribble viscose glue, makes described label can be bonded on the magnetic folder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200033999U CN201149717Y (en) | 2007-06-01 | 2008-02-05 | Anti-theft sound magnetic label using hard magnetic off-set piece |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720110039 | 2007-06-01 | ||
| CN200720110039.4 | 2007-06-01 | ||
| CNU2008200033999U CN201149717Y (en) | 2007-06-01 | 2008-02-05 | Anti-theft sound magnetic label using hard magnetic off-set piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201149717Y true CN201149717Y (en) | 2008-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200033999U Expired - Lifetime CN201149717Y (en) | 2007-06-01 | 2008-02-05 | Anti-theft sound magnetic label using hard magnetic off-set piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201149717Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103729961A (en) * | 2014-01-22 | 2014-04-16 | 常州市美思科特电子有限公司 | Acoustic-magnetic anti-theft label |
| CN113698682A (en) * | 2021-05-28 | 2021-11-26 | 宁波讯强电子科技有限公司 | Regenerated PS plastic film, acoustic-magnetic anti-theft label, label shell and preparation method thereof |
-
2008
- 2008-02-05 CN CNU2008200033999U patent/CN201149717Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103729961A (en) * | 2014-01-22 | 2014-04-16 | 常州市美思科特电子有限公司 | Acoustic-magnetic anti-theft label |
| CN103729961B (en) * | 2014-01-22 | 2016-05-25 | 常州市美思科特电子有限公司 | Acoustic magnetic anti-theft label |
| CN113698682A (en) * | 2021-05-28 | 2021-11-26 | 宁波讯强电子科技有限公司 | Regenerated PS plastic film, acoustic-magnetic anti-theft label, label shell and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Xunqiang Electronic Technology Co., Ltd. Assignor: Li Lin Contract fulfillment period: 2009.7.11 to 2015.7.11 Contract record no.: 2009990001249 Denomination of utility model: Anti-theft sound magnetic label using hard magnetic off-set piece Granted publication date: 20081112 License type: Exclusive license Record date: 20091111 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.7.11 TO 2015.7.11; CHANGE OF CONTRACT Name of requester: NINGBO SIGNATRONIC TECHNOLOGIES. CO., LTD. Effective date: 20091111 |
|
| ASS | Succession or assignment of patent right |
Owner name: NINGBO XUNQIANG ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LI LIN Effective date: 20150806 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150806 Address after: Beilun District of Zhejiang city in Ningbo Province, 315800 West Road No. 505 the first floor of Aquila A3 Patentee after: Ningbo Xunqiang Electronic Technology Co., Ltd. Address before: Beilun District of Zhejiang city in Ningbo Province, 315800 West Road No. 505 the first floor of Aquila A3 Patentee before: Li Lin |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081112 |
|
| CX01 | Expiry of patent term |