CN219831921U - Acoustic-magnetic anti-theft tag capable of reducing detection dead zone - Google Patents
Acoustic-magnetic anti-theft tag capable of reducing detection dead zone Download PDFInfo
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- CN219831921U CN219831921U CN202320544069.5U CN202320544069U CN219831921U CN 219831921 U CN219831921 U CN 219831921U CN 202320544069 U CN202320544069 U CN 202320544069U CN 219831921 U CN219831921 U CN 219831921U
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- theft tag
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- theft
- acousto
- tag
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- 238000001514 detection method Methods 0.000 title claims abstract description 49
- 230000005291 magnetic effect Effects 0.000 claims abstract description 54
- 239000003990 capacitor Substances 0.000 claims description 7
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 4
- 239000003302 ferromagnetic material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses an acousto-magnetic anti-theft tag capable of reducing a detection dead zone, which comprises a shell, wherein the shell at least comprises a first cavity and a second cavity; the first anti-theft tag is arranged in the first cavity; the second anti-theft tag is arranged in the second cavity, the first anti-theft tag and the second anti-theft tag are mutually staggered to form an inclined angle alpha, and the angle range of the inclined angle alpha is 10-170 degrees. According to the utility model, the first anti-theft tag and the second anti-theft tag are arranged in the shell, and the first anti-theft tag and the second anti-theft tag are mutually staggered to form the inclined angle alpha, so that a customer can always cut the magnetic induction line in the alternating magnetic field and the magnetic induction line of at least one anti-theft tag to form a resonance signal when entering the alternating magnetic field detection area in any direction, thereby reducing the detection dead zone of the alternating magnetic field, greatly improving the identification capability of the detection area to the electronic anti-theft tag, and reducing the risk of theft by omission detection of high-value commodities.
Description
Technical Field
The utility model relates to the field of anti-theft hard labels, in particular to an acousto-magnetic anti-theft label capable of reducing detection dead zone.
Background
An acousto-magnetic anti-theft system is widely used in various markets as one of electronic article anti-theft systems for protecting articles on sale from theft with its excellent performance. The sound magnetic anti-theft system mainly comprises a transmitting antenna, a receiving antenna and a control device, and the working principle is as follows: when the acoustic magnetic sensor enters an alternating magnetic field (detection area), the resonant frequency of the acoustic magnetic sensor generates a resonant signal with the frequency of about 58kHz due to the coincidence with the carrier frequency in the alternating magnetic field, and the resonant signal is received by the receiving antenna in the time of periodically silencing the transmitting antenna (namely, the process of 'transmitting signal-silencing' is repeated continuously when the transmitting antenna works), and the acoustic magnetic sensor is detected to trigger an alarm after the control device analyzes the resonant signal.
In the prior art, only one electronic anti-theft tag is attached to a commodity in the market, when a customer carries the commodity into an alternating magnetic field, a magnetic induction line on the alternating magnetic field may be parallel to the magnetic induction line of the electronic anti-theft tag and cannot be cut to form a resonance signal, so that a detection dead zone exists, the electronic anti-theft tag on the commodity cannot be successfully identified, and the risk of commodity detection omission and theft still exists for high-value commodities although the probability is low.
Accordingly, the prior art has drawbacks and needs improvement.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the acousto-magnetic anti-theft tag has the advantages of being high in identification capability, reducing the risk of theft of commodities and reducing detection dead areas.
The technical scheme of the utility model is as follows: an acoustic-magnetic anti-theft tag for reducing detection dead zone, comprising
The shell at least comprises a first chamber and a second chamber;
the first anti-theft tag is arranged in the first cavity;
the second anti-theft tag is arranged in the second cavity;
the first anti-theft tag and the second anti-theft tag are both sound magnetic anti-theft tags;
the first anti-theft tag and the second anti-theft tag are mutually staggered to form an inclined angle alpha, and the angle range of the inclined angle alpha is 10-170 degrees.
By adopting the technical scheme, in the acousto-magnetic anti-theft tag capable of reducing the detection dead zone, the angle of the inclined angle alpha is 90 degrees.
By adopting the technical schemes, in the acousto-magnetic anti-theft tag for reducing the detection dead zone, the shell comprises an upper shell and a lower shell, and the upper shell is detachably connected with the upper shell.
By adopting the above technical schemes, in the acoustic-magnetic anti-theft tag for reducing the detection dead zone, the first anti-theft tag is an amorphous acoustic-magnetic anti-theft tag, the amorphous acoustic-magnetic anti-theft tag comprises an amorphous resonant plate and a bias magnet for providing a bias magnetic field for the amorphous resonant plate, and the amorphous resonant plate and the bias magnet are arranged in the first cavity.
By adopting the above technical schemes, in the acoustic-magnetic anti-theft tag for reducing the detection dead zone, the second anti-theft tag is a coil-type acoustic-magnetic anti-theft tag, the coil-type acoustic-magnetic anti-theft tag comprises a coil, a magnetic rod and a capacitor, the magnetic rod is arranged in the coil in a penetrating way, and the capacitor is electrically connected with the coil.
By adopting the technical schemes, in the acousto-magnetic anti-theft tag for reducing the detection dead zone, the bias magnet comprises a permanent magnet, a first magnetizer and a second magnetizer, and the first magnetizer and the second magnetizer are respectively and mutually adsorbed and connected with the N-terminal and the S-terminal of the permanent magnet.
By adopting the technical schemes, in the acoustic-magnetic anti-theft tag for reducing the detection dead zone, the permanent magnet is made of neodymium-iron-boron permanent magnet materials, and the permanent magnet is cylindrical or cuboid.
By adopting the technical schemes, in the acoustic-magnetic anti-theft tag for reducing the detection dead zone, the first magnetizer and the second magnetizer are made of ferromagnetic materials, and the specifications of the first magnetizer and the second magnetizer are the same.
By adopting the technical schemes, in the acousto-magnetic anti-theft tag for reducing the detection dead zone, the number of the amorphous resonant sheets is more than two.
By adopting the technical schemes, in the acousto-magnetic anti-theft tag for reducing the detection dead zone, the shell is of an L-shaped structure.
Compared with the prior art, the first anti-theft tag and the second anti-theft tag are arranged in the shell, and the first anti-theft tag and the second anti-theft tag are mutually staggered to form the inclined angle alpha, so that a customer can always cut the magnetic induction line of at least one anti-theft tag in the alternating magnetic field to form a resonance signal when entering the alternating magnetic field detection area in any direction, the detection dead zone of the alternating magnetic field is reduced, the identification capability of the detection area to the electronic anti-theft tag is greatly improved, and the risk of theft of high-value commodities due to omission detection is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an alternating magnetic field of a transmitting antenna of the present utility model;
FIG. 2 is a schematic diagram of the overall structure of the present utility model;
fig. 3 is a schematic diagram of an explosive structure according to the present utility model.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some of the embodiments of the present application, but not all of the embodiments. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without undue burden are within the scope of the present patent application. Accordingly, the following detailed description of the embodiments of the present patent application, as provided in the accompanying drawings, is not intended to limit the scope of the claimed patent application, but is merely representative of selected embodiments of the present patent application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without undue burden are within the scope of the present patent application.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "inside", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1 to 3, the present embodiment provides an acoustic-magnetic anti-theft tag with reduced detection dead zone, a housing 1, wherein the housing at least includes a first chamber 101 and a second chamber 102;
a first security tag 2, the first security tag 2 being disposed within the first chamber 101;
a second security tag 3 disposed within the second chamber 102;
the first anti-theft tag 2 and the second anti-theft tag 3 are both acoustic-magnetic anti-theft tags;
the first anti-theft tag 2 and the second anti-theft tag 3 are staggered to form an inclined angle alpha, and the angle range of the inclined angle alpha is 10-170 degrees. The first anti-theft tag 2 and the second anti-theft tag 3 are arranged in the shell 1, the first anti-theft tag 2 and the second anti-theft tag 3 are mutually staggered to form the inclined angle alpha, and by the arrangement, a customer can always cut the magnetic induction line in the alternating magnetic field and the magnetic induction line of at least one anti-theft tag to form a resonance signal when entering the alternating magnetic field detection area in any direction, so that the detection dead zone of the alternating magnetic field is reduced, the identification capability of the detection area to the electronic anti-theft tag is greatly improved, and the risk of theft of high-value commodities due to missing detection is reduced.
Further, the angle of the inclination angle α is 90 °. In this embodiment, the angle of the inclination angle α is set to 90 °, that is, the first anti-theft tag 2 and the second anti-theft tag 3 are mutually perpendicular and mutually intersected, so that the arrangement can ensure that the magnetic induction line in the alternating magnetic field can be mutually cut with the magnetic induction line of the first anti-theft tag 2 or the second anti-theft tag 3 to form a resonance signal all the time when a customer enters the alternating magnetic field detection area in any direction, and the detection blind area is stopped.
Further, the housing 1 includes an upper housing 11 and a lower housing 12, and the upper housing 11 is detachably connected to the upper housing 11. In this embodiment, the upper casing 11 and the lower casing 12 are detachably connected to the casing 1, so that the casing 1 can be assembled and produced quickly, and the production efficiency is improved. The upper case 11 and the lower case 12 are all injection molded integrally.
Further, the first anti-theft tag 2 is an amorphous acousto-magnetic anti-theft tag, the amorphous acousto-magnetic anti-theft tag includes an amorphous resonant sheet 21 and a bias magnet 22 for providing a bias magnetic field for the amorphous resonant sheet 21, and the amorphous resonant sheet 21 and the bias magnet 22 are disposed in the first chamber 101. As shown in fig. 1, when a customer passes through the detection area, the amorphous resonant sheet 21 of the amorphous acousto-magnetic anti-theft tag receives an electromagnetic wave signal emitted from the receiving antenna, and the signal frequency of the electromagnetic wave signal is consistent with the resonance frequency of the amorphous resonant sheet 21, so that the amorphous resonant sheet 21 resonates at the resonance frequency under the action of the bias magnetic field of the bias magnet 22, and returns an electromagnetic wave signal corresponding to the resonance frequency to the antenna of the detection area, thereby triggering an alarm. In this embodiment, the operating frequency of the acousto-magnetic anti-theft tag is 58KHz.
Further, the second anti-theft tag 3 is a coil-type acoustic-magnetic anti-theft tag, and the coil-type acoustic-magnetic anti-theft tag includes a coil 31, a magnetic rod 32 and a capacitor 33, wherein the magnetic rod 32 is disposed in the coil 31 in a penetrating manner, and the capacitor 33 is electrically connected with the coil 31. In this embodiment, the capacitor 33 is connected with the coil 31 to form an LC resonant circuit, and an electromagnetic induction effect is generated between the coil 31 and the magnetic rod 32, so as to change the operating frequency of the anti-theft tag, and in this embodiment, the operating frequency of the coil-type acousto-magnetic anti-theft tag is 58KHz. Of course, the second security tag 3 may be an amorphous type magneto-acoustic security tag, and the embodiment is not limited excessively for the specific type of magneto-acoustic security tag of the first security tag 2 and the second security tag 3.
Further, the bias magnet 22 includes a permanent magnet 221, a first magnetizer 222, and a second magnetizer 223, where the first magnetizer 222 and the second magnetizer 223 are respectively and mutually attracted to the N-pole and S-pole of the permanent magnet 221.
Further, the permanent magnet 221 is made of a neodymium iron boron permanent magnet material, and the permanent magnet 221 is cylindrical or cuboid. In this embodiment, the permanent magnet 221 is cylindrical, and since the permanent magnet 221 is made of a neodymium-iron-boron permanent magnet material, it is ensured that the permanent magnet 221 has a high coercive force and can generate a strong magnetic field, so that the anti-theft performance of the bias magnet 22 can effectively resist the interference of the external strong magnetic field. Of course, it should be noted that the permanent magnet 221 may be made of other permanent magnetic materials, which is not limited in this embodiment.
Further, the first magnetizer 222 and the second magnetizer 223 are made of ferromagnetic materials, and the first magnetizer 222 and the second magnetizer 223 have the same specification. The first magnetic conductor 222 and the second magnetic conductor 223 made of ferromagnetic material have high magnetic permeability. When being interfered by the external magnetic field, the first magnetizer 222 and the second magnetizer 223 can effectively conduct and shunt the external magnetic field, so as to avoid the influence of the magnetic field on the permanent magnet 221.
Further, the number of the amorphous resonant sheets 21 is two or more. In the present embodiment, the number of amorphous resonant sheets 21 is two, however, the user may set other numbers of amorphous resonant sheets 21 according to the actual situation, and the present utility model is not limited thereto.
Further, the housing 1 has an L-shaped structure. In this embodiment, a first chamber 101 is disposed in a horizontal section of the housing 1 for placing and installing the first security tag 2, and a second chamber 102 is disposed in a vertical section of the housing 1 for placing and installing the second security tag 3. It should be noted that, a third chamber may be further disposed in the housing 1, and the first chamber 101, the second chamber 102, and the third chamber are disposed perpendicular to each other, and the number of chambers disposed in the housing 1 is not limited here too much.
Compared with the prior art, the first anti-theft tag and the second anti-theft tag are arranged in the shell, and the first anti-theft tag and the second anti-theft tag are mutually staggered to form the inclined angle alpha, so that a customer can always cut the magnetic induction line of at least one anti-theft tag in the alternating magnetic field to form a resonance signal when entering the alternating magnetic field detection area in any direction, the detection dead zone of the alternating magnetic field is reduced, the identification capability of the detection area to the electronic anti-theft tag is greatly improved, and the risk of theft of high-value commodities due to omission detection is reduced.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. An acoustic-magnetic anti-theft tag for reducing detection dead zone, characterized in that: comprising
The shell at least comprises a first chamber and a second chamber;
the first anti-theft tag is arranged in the first cavity;
the second anti-theft tag is arranged in the second cavity;
the first anti-theft tag and the second anti-theft tag are both sound magnetic anti-theft tags;
the first anti-theft tag and the second anti-theft tag are mutually staggered to form an inclined angle alpha, and the angle range of the inclined angle alpha is 10-170 degrees.
2. The acousto-magnetic anti-theft tag for reducing detection dead band according to claim 1, wherein: the angle of the inclination angle α is 90 °.
3. The acousto-magnetic anti-theft tag for reducing detection dead band according to claim 1, wherein: the shell comprises an upper shell and a lower shell, and the upper shell is detachably connected with the upper shell.
4. The acousto-magnetic anti-theft tag for reducing detection dead band according to claim 3, wherein: the first anti-theft tag is an amorphous acousto-magnetic anti-theft tag, the amorphous acousto-magnetic anti-theft tag comprises an amorphous resonant sheet and a bias magnet for providing a bias magnetic field for the amorphous resonant sheet, and the amorphous resonant sheet and the bias magnet are arranged in the first cavity.
5. The acousto-magnetic anti-theft tag for reducing detection dead band according to claim 1, wherein: the second anti-theft tag is a coil-type acousto-magnetic anti-theft tag, the coil-type acousto-magnetic anti-theft tag comprises a coil, a magnetic rod and a capacitor, the magnetic rod is arranged in the coil in a penetrating mode, and the capacitor is electrically connected with the coil.
6. The acousto-magnetic anti-theft tag for reducing detection dead band according to claim 4, wherein: the bias magnet comprises a permanent magnet, a first magnetizer and a second magnetizer, and the first magnetizer and the second magnetizer are respectively and mutually adsorbed and connected with the N pole end and the S pole end of the permanent magnet.
7. The acousto-magnetic anti-theft tag for reducing detection dead band according to claim 6, wherein: the permanent magnet is made of neodymium iron boron permanent magnet materials, and is cylindrical or cuboid.
8. The acousto-magnetic anti-theft tag for reducing detection dead band according to claim 6, wherein: the first magnetizer and the second magnetizer are made of ferromagnetic materials, and the specifications of the first magnetizer and the second magnetizer are the same.
9. The acousto-magnetic anti-theft tag for reducing detection dead band according to claim 4, wherein: the number of the amorphous resonant sheets is more than two.
10. The acoustic-magnetic anti-theft tag for reducing detection dead zone according to any one of claims 1 to 9, characterized in that: the shell is of an L-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320544069.5U CN219831921U (en) | 2023-03-20 | 2023-03-20 | Acoustic-magnetic anti-theft tag capable of reducing detection dead zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320544069.5U CN219831921U (en) | 2023-03-20 | 2023-03-20 | Acoustic-magnetic anti-theft tag capable of reducing detection dead zone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219831921U true CN219831921U (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320544069.5U Active CN219831921U (en) | 2023-03-20 | 2023-03-20 | Acoustic-magnetic anti-theft tag capable of reducing detection dead zone |
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| Country | Link |
|---|---|
| CN (1) | CN219831921U (en) |
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- 2023-03-20 CN CN202320544069.5U patent/CN219831921U/en active Active
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