CN108346251A - A kind of demagnetizer and audio magnetic label decoder - Google Patents
A kind of demagnetizer and audio magnetic label decoder Download PDFInfo
- Publication number
- CN108346251A CN108346251A CN201810309112.3A CN201810309112A CN108346251A CN 108346251 A CN108346251 A CN 108346251A CN 201810309112 A CN201810309112 A CN 201810309112A CN 108346251 A CN108346251 A CN 108346251A
- Authority
- CN
- China
- Prior art keywords
- demagnetizer
- arm
- magnet core
- soft magnet
- soft
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 230000005347 demagnetization Effects 0.000 claims description 39
- 230000001681 protective effect Effects 0.000 claims description 11
- 239000000696 magnetic material Substances 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000004308 accommodation Effects 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 229910017082 Fe-Si Inorganic materials 0.000 description 1
- 229910017133 Fe—Si Inorganic materials 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 229910002796 Si–Al Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
- G08B13/2408—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using ferromagnetic tags
- G08B13/2411—Tag deactivation
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention discloses a kind of demagnetizer and audio magnetic label decoders, wherein the disclosed demagnetizer includes non-closed soft magnet core, at least a magnet exciting coil and AC power circuit；The AC power circuit is connect with an at least magnet exciting coil for at least magnet exciting coil power supply；An at least magnet exciting coil is set around on the soft magnet core.The present invention enables to audio magnetic label decoder more reliable durable and can reduce the manufacture of audio magnetic label decoder and maintenance cost.
Description
Technical field
The present invention relates to demagnetization technology field more particularly to a kind of demagnetizers and audio magnetic label decoder.
Background technology
Audio magnetic label is a kind of anti-theft tag for being arranged on commodity, is the magnetostrictive effect based on magnetic material
Carry out work.Wherein, the principle of the anti-theft function of audio magnetic label is：People shop purchase with audio magnetic label commodity when,
The cashier there first in shop is needed to pay a bill, then the staff in shop can be by audio magnetic label decoder on commodity
Audio magnetic label demagnetizes, in this way, commodity touch by will not being just detected when by the detection zone of the detection device in shop
Hair alarm；And the demagnetization that the audio magnetic label of commodity does not pass through audio magnetic label decoder is just taken away by customer, then passing through inspection
It can be detected by detection device when surveying region and trigger alarm, to realize the antitheft of commodity.
Currently, audio magnetic label decoder is to the demagnetization principle of audio magnetic label：Audio magnetic label decoder includes an excitation
Coil, wherein magnet exciting coil will produce the demagnetized field of a smaller area, and after customer tries to win sb.'s favor commodity, shop assistant will be on commodity
Audio magnetic label alignment magnet exciting coil and be put into demagnetized field, so that the audio magnetic label on commodity is demagnetized and is solved
Code (deactivation), to cause to alarm on the alarm of shop doorway.But the excitation wire of existing audio magnetic label
Circle, due to being the coil of air-core, such magnet exciting coil will generate the demagnetized field that can effectively demagnetize to audio magnetic label
When, it needs to pass to prodigious alternating current and higher alternating voltage and higher working frequency, could increase to audio magnetic label
Solution code distance so that the relative electronic components (such as power transistor or integrated circuit etc.) of audio magnetic label decoder are easy
Damage, thus can make audio magnetic label decoder need often to repair due to rapid wear, so that audio magnetic label decoder
Maintenance cost it is higher.
Invention content
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of demagnetizer and audio magnetic label decoder, can make
Audio magnetic label decoder is more reliable durable and can reduce the maintenance cost of audio magnetic label decoder.
To achieve the goals above, one embodiment of the invention provides a kind of demagnetizer comprising non-closed soft magnetism
Iron-core workpiece, at least a magnet exciting coil and AC power circuit；The AC power circuit connects with an at least magnet exciting coil
It connects for at least magnet exciting coil power supply；An at least magnet exciting coil is set around on the soft magnet core.
Preferably, the soft magnet core is a bending structure and is surrounded by a demagnetization region, the soft magnet core
Interval is arranged and is formed with the demagnetization mouth of one and the demagnetization regional connectivity between both ends.
Preferably, the soft magnet core is including the first arm, the second arm and is connected to first arm and second arm
Between linkage section；
First arm is opposite with second arm and interval is arranged, the bottom end of first arm and the one of the linkage section
End connection, the bottom end of second arm is connect with the other end of the linkage section；First arm, second arm and the company
It meets a section three and surrounds the demagnetization region.
Preferably, the equal length of the length of first arm and second arm or differing.
Preferably, the soft magnet core is built up by multilayer soft magnet chip.
Preferably, the soft magnet core is made of amorphous soft magnetic material.
Preferably, the soft magnet core is by iron-based crystal soft magnetic materials, Ni-based crystal soft magnetic materials or ferrite soft magnetic
Material is made.
Preferably, the demagnetizer further includes a proximity test device and control switch；The control switch connection
Between the AC power circuit and an at least magnet exciting coil；The proximity test device is for detecting human body or quotient
The control switch is controlled when product are close to be closed.
Preferably, the demagnetizer further includes a temperature overload protective device；The temperature overload protective device is used
It is disconnected in controlling the control switch when the temperature for detecting the soft magnet core is higher than predetermined threshold value.
Preferably, the demagnetizer further includes an earth leakage protective device；The earth leakage protective device is for detecting
The control switch is controlled when leaking electricity to the demagnetizer to disconnect.
Another embodiment of the present invention additionally provides a kind of audio magnetic label decoder comprising shell and one is set on the shell
Interior any one of them demagnetizer as above；The shell, which is equipped with, picks and places mouth, is equipped in the shell and waits demagnetizing for accommodating
The accommodation space of object.
Preferably, the soft magnet core of the demagnetizer is a bending structure and is surrounded by a demagnetization region, it is described soft
Interval is arranged and is formed with the demagnetization mouth of one and the demagnetization regional connectivity, the demagnetization mouth and institute between the both ends of magnet core
It states and picks and places mouth and be oppositely arranged.
Preferably, the open top of the shell be arranged with formed it is described pick and place mouth, the periphery at the top of the shell to
It extend horizontally away a support edge outside；Wherein, when the shell is embedded in workbench, the support edge is only butted on the workbench
On top surface.
Another embodiment of the present invention additionally provides a kind of audio magnetic label decoder comprising at least one any one institute as above
The demagnetizer stated；The soft magnet core of an at least demagnetizer is set on a horizontal plane vertically.
Preferably, the quantity of the demagnetizer is two, the soft magnet cores of described two demagnetizers it is opposite and
Every setting, and it is formed with a demagnetization channel between the two；The demagnetization that the soft magnet core of described two demagnetizers is respectively formed
Magnetic field is staggered or setting up and down in the orthographic projection direction of described two demagnetizers.
Compared with prior art, the demagnetizer provided in an embodiment of the present invention and the audio magnetic label decoder, lead to
It crosses and the magnet exciting coil is set around on the soft magnet core, since the soft magnet core magnetic hystersis loss is small and magnetic conductivity is high
The features such as, the magnet exciting coil being set around in this way on the soft magnet core need to only pass to smaller alternating current and alternating current
Pressure, it will be able to the demagnetized field effectively demagnetized to the audio magnetic label be generated by the effect of " magnetic amplification ", therefore the present invention is real
The relative electronic components for applying the audio magnetic label decoder of example are less likely to be damaged and more reliable durable, so that audio magnetic label solution
Code device is more reliable durable and can reduce the maintenance cost of audio magnetic label decoder；And the magnet exciting coil need to only pass to smaller
Alternating current and alternating voltage, the relatively low (example of requirement of the relative electronic components of the audio magnetic label decoder described in this way
Such as be low pressure power frequency requirement on devices), so as to reduce the audio magnetic label decoder relative electronic components buying at
This, and then the production cost of the audio magnetic label decoder can be reduced, after-sales service can also be substantially reduced for businessman
Expense.
Description of the drawings
In order to illustrate more clearly of technical scheme of the present invention, attached drawing needed in embodiment will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of the first demagnetizer provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of second of demagnetizer provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the first audio magnetic label decoder provided in an embodiment of the present invention；
Fig. 4 is the sectional view of the first audio magnetic label decoder provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of second of audio magnetic label decoder provided in an embodiment of the present invention；
Fig. 6 is the sectional view of second of audio magnetic label decoder provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the third audio magnetic label decoder provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of the 4th kind of audio magnetic label decoder provided in an embodiment of the present invention.
Description of drawing identification：1. soft magnet core；10. the first arm；11. the second arm；12. linkage section；2. magnet exciting coil；3.
AC power circuit；4. region of demagnetizing；5. demagnetize mouth；6. proximity test device；7. control switch；8. temperature overload protection dress
It sets；9. shell；90. picking and placeing mouth；91. support edge；92. accommodation space；20. channel of demagnetizing；21. workbench；30. earth leakage protective fills
It sets.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the embodiment of the present invention, it is to be understood that the side of the instructions such as term "upper", "lower", "top", "bottom"
Position or position relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of the description embodiment of the present invention, without
It is instruction or implies that signified device or component must have a particular orientation, with specific azimuth configuration and operation, therefore not
It can be interpreted as the limitation to the embodiment of the present invention.
Embodiment one：
Fig. 3 and Fig. 4 are referred to, an embodiment of the present invention provides a kind of frame-type audio magnetic label decoders comprising shell 9
An and demagnetizer；Fig. 1 and Fig. 2 are referred to, the shell 9, which is equipped with, picks and places mouth 90, is equipped in the shell 9 and waits moving back for accommodating
The accommodation space 92 of magnetic object.The demagnetizer is set in the shell 9 comprising non-closed soft magnet core 1, at least
One magnet exciting coil 2 and AC power circuit 3；The AC power circuit 3 connect with an at least magnet exciting coil 2 for
To an at least magnet exciting coil 2 for alternating current；An at least magnet exciting coil 2 is set around on the soft magnet core 1.Its
In, the non-closed purpose of soft magnet core 1 be in order to allow magnet exciting coil 2 generate magnetic field magnetic circuit some pass through soft magnet
Place except core 1, to generate a demagnetized field outside soft magnet core 1, such as when soft magnet core 1 has both ends
When, the both ends of soft magnet core 1 are not closed connection, and a demagnetization magnetic can be formed between the both ends of such soft magnet core
.
The operation principle of the embodiment of the present invention is：When the demagnetizer after the power is turned on, the AC power circuit 3 can be powered
And to the magnet exciting coil 2 being set around on the soft magnet core 1 for alternating current；Since 1 magnetic hysteresis of soft magnet core is damaged
Consume the features such as small and magnetic conductivity is high, in this way the AC power circuit 3 only need to the magnet exciting coil 2 for smaller alternating current and
Alternating voltage, so that it may to allow the magnet exciting coil 2 and the soft magnet core 1 to generate one relatively strong and large range of demagnetization magnetic
, wherein since the demagnetizer is located in the shell 9, the magnet exciting coil 2 and the soft magnet core
The demagnetized field that body 1 generates partly or can be picked and placeed substantially with described near mouth 90 in the shell 9.Work as customer
After choosing commodity and paying the bill, the accommodation space 92 that can be directly placed into commodity in the shell 9, the audio magnetic label on commodity is just
It can effectively be demagnetized.
Compared with prior art, the embodiment of the present invention has the advantages that the embodiment of the present invention：
1, due to 2 need of the magnet exciting coil being set around on the soft magnet core 1 pass to smaller alternating current with
Alternating voltage, it will be able to generate the demagnetized field effectively demagnetized to the audio magnetic label, therefore use has the embodiment of the present invention
The relative electronic components of the audio magnetic label decoder of demagnetizer are less likely to be damaged and more reliable durable, so that sound magnetic mark
Label decoder is more reliable durable and can reduce the maintenance cost of audio magnetic label decoder.
2, since 2 need of the magnet exciting coil pass to smaller alternating current and alternating voltage, the audio magnetic label described in this way
The requirement of the relative electronic components of decoder is relatively low, so as to reduce the associated electrical of the audio magnetic label decoder
The purchase cost of component, and then the production cost of the audio magnetic label decoder can be reduced.
3, in embodiments of the present invention, customer try to win sb.'s favor only need after commodity directly by commodity (can be individual one or
Packed good multiple commodity) it is put into the accommodation space 92 in shell 9, the audio magnetic label on commodity is in the process being placed and taken out
In, so that it may it, need not picture with the effective demagnetization of demagnetized field generated by the magnet exciting coil 2 and the soft magnet core 1
The prior art needs the audio magnetic label on commodity being directed at magnet exciting coil 2 and is accurately put into one that magnet exciting coil 2 generates like that
The demagnetized field of smaller area, therefore the audio magnetic label decoder of the embodiment of the present invention can be more easily to the sound magnetic on commodity
Label demagnetizes.
In embodiments of the present invention, Fig. 1 to Fig. 4 is referred to, in order to enable can be by the magnetic that demagnetizes on the soft magnet core 1
Field more effectively guides and focuses in a demagnetization range, preferably, the soft magnet core 1 is a bending structure and surrounds
There is a demagnetization region 4, interval is arranged and is formed with one and is connected to the demagnetization region 4 between the both ends of the soft magnet core 1
Demagnetization mouth 5, the demagnetized field formed between the both ends of the soft magnet core 1 in this way is concentrated in the area between the both ends
In domain, avoid the soft magnet core 1 for flat construction when due between itself both ends demagnetized field dispersion and caused by move back
The waste of magnetic energy.In addition, the demagnetization mouth 5 with it is described pick and place mouth 90 and be oppositely arranged when, be put into this way from the mouth 90 that picks and places
Commodity, can enter by the demagnetization mouth 5 in the demagnetization region 4, the audio magnetic label on such commodity can be by institute
The demagnetized field formed between the both ends of soft magnet core 1 is stated effectively to demagnetize.Certainly, the soft magnet core 1 can also be
The structures such as direct rod shape or straight panel shape, are not specifically limited herein.
Specifically, Fig. 1 to Fig. 4 is referred to, the soft magnet core 1 includes the first arm 10, the second arm 11 and is connected to institute
State the linkage section 12 between the first arm 10 and second arm 11；First arm 10 is opposite with second arm 11 and interval is set
It sets, the bottom end of first arm 10 is connect with one end of the linkage section 12, bottom end and the linkage section of second arm 11
12 other end connection；First arm 10, second arm 11 and 12 three of the linkage section surround a demagnetization region 4, institute
State be formed between the top of the first arm 10 and the top of second arm 11 integrated distribution in the first arm 10 and the second arm 11 it
Between demagnetized field.Wherein, when the soft magnet core 1 is set in the shell 9, it is preferable that first arm 10 and institute
The opposite sides that the second arm 11 is set to along the short transverse of the shell 9 in the shell 9 is stated, the linkage section 12 is located at institute
The bottom in shell 9 is stated, and the demagnetization mouth 5 formed between first arm 10 and the top of second arm 11 is aligned outside described
What the top of shell 9 offered pick and place mouth 90, such commodity can conveniently by it is described pick and place mouth 90 and the demagnetization mouth 5 into
Enter and demagnetizes into the demagnetization region 4 between first arm 10 and second arm 11.
More specifically, referring to Fig. 1 to Fig. 4, the length of first arm 10 and the length of second arm 11 are unequal
(such as the length of first arm 10 is longer than the length of second arm 11), the first arm 10 described in this way and second arm 11
Between the demagnetized field that is formed can fill the demagnetization region 4 to a greater degree.Certainly, the length of first arm 10 with it is described
The length of second arm 11 can be with equal.
In the above-described embodiments, preferably, the soft magnet core 1 is by multilayer soft magnet chip, (such as Multi-layer amorphous is soft
Tape material) build up, in this way it is possible to prevente effectively from the soft magnet core 1 occur vortex phenomenon and therefore and the fever that generates is existing
As.Wherein, each soft magnet chip be preferably dimensioned to be wide 10~200 millimeters, it is 20~40 microns thick, 0.1 meter high~2 meters；And
The thickness for the soft magnet core 1 that soft magnet chip is built up is preferably 5~50 millimeters.
In the above-described embodiments, preferably, referring to Fig. 1 to Fig. 4, the demagnetizer further includes proximity test dress
Set 6 and control switch 7；The control switch 7 is connected between the AC power circuit 3 and an at least magnet exciting coil 2；
Specifically, when the proximity test device 6 detects human body or commodity close to the demagnetizer, the control switch is controlled
7 are closed so that the AC power circuit 3 is powered to the magnet exciting coil 2.In addition, 2 turn-off current of the magnet exciting coil have with
Lower two ways：One is when proximity test device 6 detects that human body or commodity leave, control the control switch 7 to disconnect；
Another kind is that control switch 7 disconnects afterwards in opening predetermined time (such as 0.1 to 30 minute).It should be noted that described close
Detection device 6 can be microwave remote sensor, infrared sensor or photoelectric sensor etc., and cost is relatively low and reliable operation.Institute
It can be relay or switching circuit form etc. to state control switch 7, be not specifically limited herein.
Further, Fig. 1 to Fig. 4 is referred to, the demagnetizer further includes that a temperature overload protective device 8 is (specific
Refer to the prior art for structure)；Specifically, when the temperature overload protective device 8 detects the soft magnet core 1 or described
When the temperature of magnet exciting coil 2 is more than threshold value (such as more than 70 degrees Celsius), the disconnection of the control switch 7 will be controlled,
So that it is guaranteed that the work safety of the demagnetizer and reliable.
Further, Fig. 1 to Fig. 4 is referred to, the demagnetizer further includes 30 (concrete structure of an earth leakage protective device
Refer to the prior art)；The earth leakage protective device 30 controls the control when detecting that the demagnetizer leaks electricity
Switch 7 disconnects, to avoid there is personnel's electric shock phenomenon, so that the more reliable safety of the use of the demagnetizer.
In the above-described embodiments, the soft magnet core 1 is preferably made of amorphous soft magnetic material.Certain soft magnet core
1 is made of other soft magnetic materials.
In the above-described embodiments, the soft magnet core 1 is preferably by iron-based crystal soft magnetic materials, Ni-based crystal soft magnetism material
Material or soft magnetic ferrites are made, such as Fe, Ni, Fe-49Ni, Ni80-Fe, Fe-Si, Fe-Al, Fe-Si-Al etc..
Embodiment two：
Fig. 5 and Fig. 6 are referred to, an embodiment of the present invention provides a kind of embedded audio magnetic label decoders comprising shell 9
An and demagnetizer as described in embodiment one in the shell 9；The shell 9 is equipped with and picks and places mouth 90, the shell 9
Interior to be equipped with accommodation space for accommodating object demagnetize, the open top of the shell 9 is arranged to pick and place mouth 90 described in being formed,
The periphery at the top of the shell 9 extend horizontally away a support edge 91 outward；Wherein, when the shell 9 is embedded in workbench 21,
The support edge 91 is only butted on the top surface of the workbench 21.
Demagnetizer, operation principle, structure and the technique effect of the audio magnetic label decoder of the present embodiment and implementation
The audio magnetic label decoder of example one it is essentially identical, therefore, the audio magnetic label decoder of the present embodiment can be with reference implementation
The related content of example one, is no longer repeated herein.The places more different from embodiment one essentially consist in：The shell 9
Open top setting with formed it is described pick and place mouth 90, the periphery at the top of the shell 9 extend horizontally away a support edge 91 outward,
The audio magnetic label decoder of this sample embodiment can be embedded on the cash register workbench 21 in shop.
Embodiment three：
Fig. 7 and Fig. 8 are referred to, another embodiment of the present invention additionally provides a kind of channel-type audio magnetic label decoder, packet
Include at least one demagnetizer as described in embodiment one；The soft magnet core 1 of at least one demagnetizer is set to vertically
On one horizontal plane.
Demagnetizer, operation principle, structure and the technique effect of the audio magnetic label decoder of the present embodiment and implementation
The audio magnetic label decoder of example one it is essentially identical, therefore, the audio magnetic label decoder of the present embodiment can be with reference implementation
The related content of example one, is no longer repeated herein.The places more different from embodiment one essentially consist in：It is described at least one
The soft magnet core 1 of demagnetizer is set on a horizontal plane vertically, and each soft magnet core 1 can be in the horizontal plane in this way
One demagnetized field of upper formation, when customer passes through with commodity from the demagnetized field region on the horizontal plane, the sound magnetic on commodity
Label can be demagnetized by demagnetized field.
Preferably, referring to Fig. 7 and Fig. 8, the quantity of the demagnetizer of the present embodiment is preferably one or two.Please
Referring to Fig. 8, when the quantity of the demagnetizer is two, the soft magnet core 1 of described two demagnetizers is opposite and is spaced
Setting, and a demagnetization channel 21 being located on the horizontal plane is formed between the two；The soft magnet core of described two demagnetizers
The demagnetized field of 1 each self-forming of body is staggered in the orthographic projection direction of two demagnetizers, soft magnet cores described two in this way
The demagnetized field of 1 each self-forming of body can without dead angle be distributed in the demagnetization channel 21 as far as possible, to when customer with
It is out-of-date that commodity are walked from the demagnetization channel 21, can effectively be demagnetized.Illustratively, the demagnetizer is preferably embodiment one
In 11 Length discrepancy of the first arm 10 and the second arm structure.
Certainly, the demagnetized field of 1 each self-forming of described two soft magnet cores in order to without dead angle being distributed as far as possible
In the demagnetization channel 21, the demagnetized field of 1 each self-forming of soft magnet core of described two demagnetizers is demagnetized at two
It the orthographic projection direction of device can be with (not shown) setting up and down.Illustratively, described two demagnetizers, which are both preferably, implements
The isometric structure of the first arm 10 and the second arm 11 in example one, but the two-arm of one of demagnetizer is than another demagnetizer
Two-arm it is high.
It should be noted that the demagnetizer in above-described embodiment can also be applied to the technology neck that other needs demagnetize
Domain is not specifically limited herein.
Above disclosed is only some preferred embodiments of the invention, cannot limit the power of the present invention with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and is weighed according to the present invention
Equivalent variations made by profit requirement, still belong to the scope covered by the invention.
Claims (15)
1. a kind of demagnetizer, which is characterized in that including non-closed soft magnet core, at least a magnet exciting coil and alternating current
Source circuit；The AC power circuit connect to supply to an at least magnet exciting coil with an at least magnet exciting coil
Electricity；An at least magnet exciting coil is set around on the soft magnet core.
2. demagnetizer according to claim 1, which is characterized in that the soft magnet core is a bending structure and surrounds
There is a demagnetization region, interval is arranged and is formed with one and moved back with the regional connectivity that demagnetizes between the both ends of the soft magnet core
Magnetic mouth.
3. demagnetizer according to claim 2, which is characterized in that the soft magnet core includes the first arm, the second arm
And it is connected to the linkage section between first arm and second arm；
First arm is opposite with second arm and interval setting, the bottom end of first arm connect with one end of the linkage section
It connects, the bottom end of second arm is connect with the other end of the linkage section；First arm, second arm and the linkage section
Three surrounds the demagnetization region.
4. demagnetizer according to claim 3, which is characterized in that the length of the length of first arm and second arm
It spends equal or different.
5. demagnetizer according to claim 1, which is characterized in that the soft magnet core is folded by multilayer soft magnet chip
At.
6. demagnetizer according to claim 1, which is characterized in that the soft magnet core is by amorphous soft magnetic material system
At.
7. demagnetizer according to claim 1, which is characterized in that the soft magnet core is by iron-based crystal soft magnetism material
Material, Ni-based crystal soft magnetic materials or soft magnetic ferrites are made.
8. demagnetizer according to any one of claims 1 to 7, which is characterized in that further include a proximity test device and
Control switch；The control switch is connected between the AC power circuit and an at least magnet exciting coil；It is described close
Detection device is closed for controlling the control switch when detecting human body or close commodity.
9. demagnetizer according to claim 8, which is characterized in that further include a temperature overload protective device；The temperature
Overload protection arrangement is spent to be used to be higher than predetermined threshold value time control in the temperature for detecting the soft magnet core or the magnet exciting coil
The control switch is made to disconnect.
10. demagnetizer according to claim 8, which is characterized in that further include an earth leakage protective device；The electric leakage is protected
Protection unit is disconnected for controlling the control switch when detecting that the demagnetizer leaks electricity.
11. a kind of audio magnetic label decoder, which is characterized in that including shell and one be set to the shell in such as claim 1
To 10 any one of them demagnetizers；The shell, which is equipped with, picks and places mouth, is equipped in the shell for accommodating object to be demagnetized
Accommodation space.
12. audio magnetic label decoder according to claim 11, which is characterized in that the soft magnet core of the demagnetizer
For a bending structure and it is surrounded by a demagnetization region, interval is arranged and is formed with one and institute between the both ends of the soft magnet core
The demagnetization mouth of demagnetization regional connectivity is stated, the demagnetization mouth is oppositely arranged with the mouth that picks and places.
13. audio magnetic label decoder according to claim 11 or 12, which is characterized in that the open top of the shell is set
It sets to pick and place mouth described in formation, the periphery at the top of the shell extend horizontally away a support edge outward；Wherein, when the shell
When embedded workbench, the support edge is only butted on the top surface of the workbench.
14. a kind of audio magnetic label decoder, which is characterized in that including at least one as described in any one of claim 1 to 10
Demagnetizer；The soft magnet core of at least one demagnetizer is set on a horizontal plane vertically.
15. audio magnetic label decoder according to claim 14, which is characterized in that the quantity of the demagnetizer is two
A, the soft magnet core of described two demagnetizers is opposite and interval is arranged, and is formed with a demagnetization channel between the two；It is described
The demagnetized field that the soft magnet core of two demagnetizers is respectively formed is interlocked in the orthographic projection direction of described two demagnetizers
Setting is setting up and down.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810309112.3A CN108346251A (en) | 2018-04-09 | 2018-04-09 | A kind of demagnetizer and audio magnetic label decoder |
| PCT/CN2019/083784 WO2019196958A1 (en) | 2018-04-09 | 2019-04-23 | Demagnetizing device and acousto-magnetic tag decoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810309112.3A CN108346251A (en) | 2018-04-09 | 2018-04-09 | A kind of demagnetizer and audio magnetic label decoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108346251A true CN108346251A (en) | 2018-07-31 |
Family
ID=62957807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810309112.3A Pending CN108346251A (en) | 2018-04-09 | 2018-04-09 | A kind of demagnetizer and audio magnetic label decoder |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108346251A (en) |
| WO (1) | WO2019196958A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019196958A1 (en) * | 2018-04-09 | 2019-10-17 | 宁波讯强电子科技有限公司 | Demagnetizing device and acousto-magnetic tag decoder |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6359563B1 (en) * | 1999-02-10 | 2002-03-19 | Vacuumschmelze Gmbh | ‘Magneto-acoustic marker for electronic article surveillance having reduced size and high signal amplitude’ |
| CN1664966A (en) * | 2005-03-09 | 2005-09-07 | 李志平 | Convergent oscillation type demagnetization device |
| CN2742538Y (en) * | 2004-10-29 | 2005-11-23 | 林俊明 | High efficiency low power consumption magnetizing demagnetizing device |
| CN1885446A (en) * | 2006-06-16 | 2006-12-27 | 李霖 | Soft magnetic material offset piece manufacturing method and anti-theft acoustic magnetic label using the same |
| CN201616310U (en) * | 2009-11-26 | 2010-10-27 | 中冶陕压重工设备有限公司 | Large-scale ferromagnetic part demagnetizing device |
| CN202290130U (en) * | 2011-10-28 | 2012-07-04 | 江苏阳帆机电设备制造有限公司 | Magnetic bar capable of removing iron impurities in mortar recovery liquid |
| CN102915744A (en) * | 2012-09-28 | 2013-02-06 | 山推楚天工程机械有限公司 | Device and method for reading material code magnetic records of ferromagnetic metal workpieces |
| CN103308872A (en) * | 2013-05-13 | 2013-09-18 | 华南理工大学 | Combined type magnetic field sensor and weak magnetic field measuring device |
| CN205645429U (en) * | 2016-03-30 | 2016-10-12 | 深圳蓉华电子有限公司 | Sound magnetism security label deactivates and detection device |
| CN106160265A (en) * | 2016-07-12 | 2016-11-23 | 武汉大学 | Wireless power supply |
| CN106300384A (en) * | 2016-09-29 | 2017-01-04 | 中冶华天南京电气工程技术有限公司 | A kind of can high-speed excitation and the magnet controlled reactor of demagnetization |
| CN106997644A (en) * | 2016-01-22 | 2017-08-01 | 罗存 | Automatic counting decoder based on 58KHZ sound magnetic |
| CN208092892U (en) * | 2018-04-09 | 2018-11-13 | 宁波讯强电子科技有限公司 | A kind of demagnetizer and audio magnetic label decoder |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5151843A (en) * | 1989-12-08 | 1992-09-29 | Minnesota Mining And Manufacturing Company | Sensitizer for ferromagnetic markers used with electromagnetic article surveillance systems |
| US5126720A (en) * | 1991-01-17 | 1992-06-30 | Knogo Corporation | Method and apparatus for deactivating magnetic targets |
| JP2006195955A (en) * | 2004-12-13 | 2006-07-27 | Lintec Corp | Method for reactivation of magnetic detection tag and device for reactivation of magnetic detection tag |
| CN200990268Y (en) * | 2006-12-04 | 2007-12-12 | 豪昱电子有限公司 | Portable long demagnetizing device |
| US8009039B2 (en) * | 2008-09-18 | 2011-08-30 | Sensormatic Electronics, LLC | EAS power management system |
| CN108346251A (en) * | 2018-04-09 | 2018-07-31 | 宁波讯强电子科技有限公司 | A kind of demagnetizer and audio magnetic label decoder |
-
2018
- 2018-04-09 CN CN201810309112.3A patent/CN108346251A/en active Pending
-
2019
- 2019-04-23 WO PCT/CN2019/083784 patent/WO2019196958A1/en active Application Filing
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6359563B1 (en) * | 1999-02-10 | 2002-03-19 | Vacuumschmelze Gmbh | ‘Magneto-acoustic marker for electronic article surveillance having reduced size and high signal amplitude’ |
| CN2742538Y (en) * | 2004-10-29 | 2005-11-23 | 林俊明 | High efficiency low power consumption magnetizing demagnetizing device |
| CN1664966A (en) * | 2005-03-09 | 2005-09-07 | 李志平 | Convergent oscillation type demagnetization device |
| CN1885446A (en) * | 2006-06-16 | 2006-12-27 | 李霖 | Soft magnetic material offset piece manufacturing method and anti-theft acoustic magnetic label using the same |
| CN201616310U (en) * | 2009-11-26 | 2010-10-27 | 中冶陕压重工设备有限公司 | Large-scale ferromagnetic part demagnetizing device |
| CN202290130U (en) * | 2011-10-28 | 2012-07-04 | 江苏阳帆机电设备制造有限公司 | Magnetic bar capable of removing iron impurities in mortar recovery liquid |
| CN102915744A (en) * | 2012-09-28 | 2013-02-06 | 山推楚天工程机械有限公司 | Device and method for reading material code magnetic records of ferromagnetic metal workpieces |
| CN103308872A (en) * | 2013-05-13 | 2013-09-18 | 华南理工大学 | Combined type magnetic field sensor and weak magnetic field measuring device |
| CN106997644A (en) * | 2016-01-22 | 2017-08-01 | 罗存 | Automatic counting decoder based on 58KHZ sound magnetic |
| CN205645429U (en) * | 2016-03-30 | 2016-10-12 | 深圳蓉华电子有限公司 | Sound magnetism security label deactivates and detection device |
| CN106160265A (en) * | 2016-07-12 | 2016-11-23 | 武汉大学 | Wireless power supply |
| CN106300384A (en) * | 2016-09-29 | 2017-01-04 | 中冶华天南京电气工程技术有限公司 | A kind of can high-speed excitation and the magnet controlled reactor of demagnetization |
| CN208092892U (en) * | 2018-04-09 | 2018-11-13 | 宁波讯强电子科技有限公司 | A kind of demagnetizer and audio magnetic label decoder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019196958A1 (en) * | 2018-04-09 | 2019-10-17 | 宁波讯强电子科技有限公司 | Demagnetizing device and acousto-magnetic tag decoder |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019196958A1 (en) | 2019-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10720789B2 (en) | Wireless charging station | |
| Tejeda et al. | Ferrite-less circular pad with controlled flux cancelation for EV wireless charging | |
| Zaheer et al. | A bipolar receiver pad in a lumped IPT system for electric vehicle charging applications | |
| Aditya et al. | Design considerations for loosely coupled inductive power transfer (IPT) system for electric vehicle battery charging-A comprehensive review | |
| US20210099021A1 (en) | Inductive Power Transmitter | |
| JP5941046B2 (en) | Inductive power receiver device | |
| JP6378330B2 (en) | Wireless power transmitter with multiple magnetic transducers | |
| EP3080825B1 (en) | Transmitter for inductive power transfer systems | |
| EP2783449B1 (en) | System providing inductive transmission of power and data through a permeable conductive barrier layer. | |
| EP1064631B1 (en) | Eas marker deactivation device having core-wound energized coils | |
| CN104280600B (en) | Detector and voltage changer | |
| CN105229850B (en) | For driving the method for keeping the aerial coil of power-limited output | |
| US20160049232A1 (en) | Electromagnetic field confinement | |
| CN208092892U (en) | A kind of demagnetizer and audio magnetic label decoder | |
| CA3046620A1 (en) | Segmented and longitudinal receiver coil arrangements for wireless power transfer | |
| CN108346251A (en) | A kind of demagnetizer and audio magnetic label decoder | |
| JP2008312434A (en) | Coil device, and power receiving apparatus, power transmission apparatus, and electronic equipment using the coil device | |
| CN209657980U (en) | A kind of current detecting mutual inductor of anti-strong magnetic field circumstance interference | |
| CN105097163A (en) | Soft magnetic alloy, wireless power transmitting apparatus and wireless power receiving apparatus comprising the same | |
| CN201616310U (en) | Large-scale ferromagnetic part demagnetizing device | |
| JP2006262125A (en) | Contactless tag and manufacturing method thereof | |
| Jeong et al. | Wireless charging of a metal-encased device | |
| CN202871522U (en) | Rectangular skeleton electronic transformer | |
| US11023795B2 (en) | Tag system and method for long-distance detection of objects | |
| CN207264880U (en) | It is side-mounted to take electric Current Transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |