CN110164678A - Magnetic flexible wireless energy transfer receiving module of one kind and preparation method thereof - Google Patents

Magnetic flexible wireless energy transfer receiving module of one kind and preparation method thereof Download PDF

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Publication number
CN110164678A
CN110164678A CN201910414498.9A CN201910414498A CN110164678A CN 110164678 A CN110164678 A CN 110164678A CN 201910414498 A CN201910414498 A CN 201910414498A CN 110164678 A CN110164678 A CN 110164678A
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China
Prior art keywords
layer
wireless energy
magnetic
receiving module
energy transfer
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CN201910414498.9A
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Chinese (zh)
Inventor
石新智
祝晖博
叶双莉
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Wuhan University WHU
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Wuhan University WHU
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Priority to CN201910414498.9A priority Critical patent/CN110164678A/en
Publication of CN110164678A publication Critical patent/CN110164678A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/041—Printed circuit coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/22—Heat treatment; Thermal decomposition; Chemical vapour deposition

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The present invention relates to communications electronics component technical fields, and in particular to magnetic flexible wireless energy transfer receiving module of one kind and preparation method thereof.Magnetic flexibility wireless energy transfer receiving module includes thin magnetic film and the flexible layer for being coated on thin magnetic film periphery, and the thin magnetic film includes sequentially connected nickel zinc magnetosphere, polyimide layer and silver wire ring layer from bottom to up；The flexible layer is dimethyl silicone polymer layer.Nickel zinc magnetosphere, polyimide layer and silver wire ring layer are wrapped to form protective layer by dimethyl silicone polymer layer；Receiving module of the invention has flexible characteristic, still can normal wireless transmission energy after bending；Flexible magnetic film incorporates flexible wireless energy receiving module, enhances the magnetic coupling between transmitting coil and receiving coil, improves wireless energy transmission efficiency, and effectively prevent conductive body or electronic equipment near the magnetic interference of wireless energy transfer.

Description

Magnetic flexible wireless energy transfer receiving module of one kind and preparation method thereof
Technical field
The present invention relates to communications electronics component technical fields, and in particular to a kind of magnetic flexible wireless energy transfer Receiving module and preparation method thereof.
Background technique
In recent years, with the rapid development of wearable portable electronic device and Internet of Things, people are to various flexible apparatus Demand increase sharply, various light weights, flexible, foldable and high flexible flexible apparatus emerge in succession.But these are soft Property equipment power supply unit be still rigidity, to destroy whole flexibility, this allow for exploitation have light weight, it is flexible, Foldable and high flexible characteristic efficient small size energy supply device is imperative.
In various energy supply equipment, wireless energy transfer (WPT) is a kind of emerging technology, since it can be not Electric power is wirelessly provided to multiple electronic equipments simultaneously in the case where physical contact, and supports charging of mobile devices, therefore receive Extensive concern is considered as the ideal energy supply technology of mobile electronic device.According to market evaluation, it is contemplated that by 2022, WPT existed The technical benefits in wearable/flexible electronic product and electric car field will expand into 112.7 hundred million dollars.
The concept of WPT is put forward for the first time before century more than one by Ni Gula tesla (Nikola Tesla), is had long-drawn-out Long history.In recent years, middle to achieve sizable progress in the field WPT apart from magnetic resonance coupling wireless energy transmission technology. The technology makes transmitting module and receiving module work in resonance state, thus realize energy efficient wireless transmission and farther away biography Defeated distance.
When magnetic resonance coupling wireless energy transfer receiving module is applied in electronic equipment, inevitably close to conduction Object, such as battery pack and metal shell.Magnetic field then from wireless energy transfer transmitting module, which also inevitably reaches, leads Electric object generates vortex in conductive body, and generates offset magnetic field, to have an adverse effect to WPT performance.
In order to solve this problem, it needs to configure high magnetic permeability soft ferrite layer in WPT receiving module.Soft ferrite layer The magnetic coupling between transmitting coil and receiving coil can be enhanced, improve wireless energy transmission efficiency, and effectively prevent the magnetic of WPT Conductive body or electronic equipment near the interference of field.
By adding ferrite powder in the polymer and adhesive of flexible WPT receiving module, although can be in certain journey Flexibility is not destroyed on degree, but enhances magnetic field and anti-tampering poor performance.Although and fully sintered ferrite layer better performances, It is rigid ceramic material, it can not be compatible with flexible WPT receiving module.
Present invention seek to address that this problem, the magnetic flexible wireless energy transfer for obtaining excellent performance receives mould Block.
Summary of the invention
One of the objects of the present invention is to provide a kind of magnetic flexible wireless energy transfer receiving modules, magnetic thin Film incorporates flexibility, enhances the magnetic coupling between transmitting coil and receiving coil, improves wireless energy transmission efficiency.
The second purpose of the invention is to provide a kind of preparation of magnetic flexible wireless energy transfer receiving module Method, using inkjet printing and laser sintered, procedure of processing is simple, is not necessarily to high temperature and vacuum technology, it may be convenient to carry out low Costs in mass production.
The present invention realizes that scheme used by the first purpose is: a kind of magnetic flexible wireless energy transfer reception mould Block, including thin magnetic film and the flexible layer for being coated on thin magnetic film periphery, the thin magnetic film includes being sequentially connected from bottom to up Nickel zinc magnetosphere, polyimide layer and silver wire ring layer；The flexible layer is dimethyl silicone polymer layer.
Nickel zinc magnetosphere (NZF layers), polyimide layer (PI layers) and silver wire ring layer are by dimethyl silicone polymer layer (PDMS Layer) it is wrapped to form protective layer；Receiving module of the invention has flexible characteristic, still can normal wireless transmission energy after bending； Flexible magnetic film incorporates flexible wireless energy receiving module, enhances the magnetic coupling between transmitting coil and receiving coil, mentions High wireless energy transmission efficiency, and conductive body or electronics near the magnetic interference of wireless energy transfer is effectively prevent to set It is standby.
The present invention realizes that scheme used by the second purpose is: magnetic flexible wireless energy transfer described in one kind connects Receive the preparation method of module, comprising the following steps: (1) preparing substrate prints Ag layers in substrate surface using Ag ink and silver is made Sacrificial layer；
(2) certain thickness nickel zinc magnetosphere is printed in silver-colored sacrificial layer surface；
(3) nickel zinc magnetosphere is carried out laser sintered；
(4) silver wire ring layer is made in the surface of polyimide layer using Ag ink print loop construction；
(5) polyimides is adhered to nickel zinc magnetic layer surface after sintering；
(6) product that the step (5) obtains is immersed in dimethyl silicone polymer solution, then taking out makes to be wrapped in The dimethyl silicone polymer of surface solidifies, and dimethyl silicone polymer layer is made；
(7) desilver sacrificial layer is removed, is connect so that substrate be made to separate to get to the magnetic flexible wireless energy transfer Receive module.
Preparation method of the invention introduces silver-colored sacrificial layers at NZF layers between substrate, with NZF layer after helping laser to burn and Substrate separation；When laser sintered, infrared laser is connected on printing nozzle, to use identical printer to carry out laser Sintering, NZF layers of whole region are irradiated by scanning laser beam；Nickel zinc magnetosphere passes through inkjet printing and laser sintered formation；It is logical The thickness and sintering degree for crossing NZF layers of control make NZF still have the magnetic properties met the requirements in bending；Pass through PDMS Package, after separating with substrate, makes rigid thin magnetic film be provided with flexible characteristic；Using inkjet printing and laser sintered, ink-jet is beaten Print can print the pattern of NZF layers and silver wire ring layer；Digital design information used in inkjet printing can be used for simultaneously it is laser sintered, Move laser irradiation position along the travel path of print nozzles, procedure of processing is simple, is not necessarily to high temperature and vacuum technology, Ke Yifang Just carry out low cost batch production；Practical polyimide layer is Kapton Tape, and silver wire coil structures are printed to polyamides Asia Then the Kapton Tape for having printed silver wire coil structures is adhered to sintered NZF layer surface by the non-mucilage glue surface of amine adhesive tape.
Preferably, in the step (1), substrate is glass substrate, silver-colored sacrificial layer with a thickness of 1.2-1.8 μm.
Preferably, nickel zinc is magnetospheric with a thickness of 15-25 μm in the step (2).
By control print gap and number of repeating print, NZF thickness degree is fixed on 15-25 μm, it more preferably, will NZF layers of thickness control is at 20 μm.
Preferably, in the step (3), the dielectric constant of sintered nickel zinc thin magnetic film is 97.6, and loss tangent is 0.044, knots modification after bending is less than 5%.
At magnetic resonance wireless energy transfer system working frequency 6.78MHz, NZF layers of dielectric constant are 97.6, and loss is just It is cut to 0.044, flexible, knots modification after bending is less than 5%.When laser sintered, laser flux 64J/cm2, laser Scanning speed is 10mm/s.
Preferably, in the step step (4), loop construction is plane hexagonal spiral, planar square-spiral and flat circle At least one of shape spiral.
Preferably, in the step (7), the operating procedure of desilver sacrificial layer is gone are as follows: cutting dimethyl silicone polymer layer Periphery makes silver-colored sacrificial layer be exposed to outside, and total is immersed in silver-colored etchant to go desilver sacrificial layer to separate substrate, Obtain the magnetic flexible wireless energy transfer receiving module.
Magnetic flexible wireless energy transfer receiving module of the invention, NZF layers, PI protective layer and silver wire ring layer by PDMS is wrapped to form protective layer；It, still can normal wireless transmission energy after bending with flexible characteristic；Flexible magnetic film incorporates Flexible wireless energy receiving module, enhances the magnetic coupling between transmitting coil and receiving coil, improves wireless energy transfer Efficiency, and it effectively prevent conductive body or electronic equipment near the magnetic interference of wireless energy transfer.
In preparation method of the invention, nickel zinc magnetosphere passes through inkjet printing and laser sintered formation；Pass through NZF layers of control Thickness and sintering degree, make NZF bending when still there are the magnetic properties met the requirements；It is wrapped up by PDMS, with substrate After separation, rigid thin magnetic film is made to be provided with flexible characteristic；Using inkjet printing and laser sintered, inkjet printing can print NZF The pattern of layer and silver wire ring layer；Digital design information used in inkjet printing can be used for laser sintered simultaneously, make laser irradiation Position is moved along the travel path of print nozzles, and procedure of processing is simple, is not necessarily to high temperature and vacuum technology, it may be convenient to carry out low Costs in mass production.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the sectional view before glass substrate of the invention is not separated with silver-colored sacrificial layer.
In figure: 1, glass substrate；2, silver-colored sacrificial layer；3, NZF layers；4, PI layers；5, silver wire ring layer；6, PDMS layer.
Specific embodiment
For a better understanding of the present invention, the following examples are to further explanation of the invention, but the contents of the present invention It is not limited solely to the following examples.
Embodiment 1
As shown in Figure 1, the present embodiment is related to a kind of magnetic flexible wireless energy transfer receiving module, by glass substrate 1, silver-colored sacrificial layer 2, nickel zinc magnetosphere (NZF layers) 3, polyimide (PI layers) 4, silver wire ring layer 5 and PDMS layer 6 are constituted.
Wherein silver wire ring layer is the surface adopted Ag ink and loop construction is printed to polyimide, and loop construction is plane Hexagonal spiral, planar square-spiral, planar rondure spiral or their any combinations.
Embodiment 2
The present embodiment is related to a kind of preparation method of magnetic flexible wireless energy transfer receiving module, including following step It is rapid:
Step 1: preparing glass substrate 1, Ag layers thin in entire 1 surface printing of glass substrate using Ag ink, and it is sacrificial that silver is made Domestic animal layer 2, silver-colored sacrificial layer 2 with a thickness of 1.5 μm；
Step 2: using ink-jet printer in silver-colored 2 surface printing NZF layer 3 of sacrificial layer, the thickness of NZF layer 3 is fixed on 20 μ m；
Step 3: infrared laser is connected on printing nozzle, laser sintered to use identical printer to carry out, The whole region of NZF layer 3 is irradiated by scanning laser beam, and the dielectric constant of sintered NZF layer 3 is 97.6, and loss tangent is 0.044, knots modification after bending is 3%；
Step 4: it using Ag ink jet inks printing planar square-spiral loop construction to the surface of PI layer 4, and will have printed The PI layer 4 of planar square-spiral loop construction is adhered to the surface of sintered NZF layer 3；
Step 5: the total in glass substrate 1 is put into culture dish, pours into PDMS solution, it is made to impregnate glass Total on substrate 1 solidifies PDMS, obtains PDMS layer.
Step 6: cutting the periphery of PDMS layer, and silver-colored sacrificial layer 2 is made to be exposed to outside, by the total in glass substrate 1 It immerses in silver-colored etchant to remove desilver sacrificial layer 2, when silver-colored sacrificial layer 2 is dissolved completely in etchant, is embedded in NZF layer 3 and silver The PDMS of coil layer 5 is separated with glass substrate 1.
Embodiment 3
The present embodiment is related to a kind of preparation method of magnetic flexible wireless energy transfer receiving module, including following step It is rapid:
Step 1: preparing glass substrate 1, Ag layers thin in entire 1 surface printing of glass substrate using Ag ink, and it is sacrificial that silver is made Domestic animal layer 2, silver-colored sacrificial layer 2 with a thickness of 1.2 μm；
Step 2: using ink-jet printer in silver-colored 2 surface printing NZF layer 3 of sacrificial layer, the thickness of NZF layer 3 is fixed on 15 μ m；
Step 3: infrared laser is connected on printing nozzle, laser sintered to use identical printer to carry out, The whole region of NZF layer 3 is irradiated by scanning laser beam, and the dielectric constant of sintered NZF layer 3 is 97.6, and loss tangent is 0.044, knots modification after bending is 4%；
Step 4: it using Ag ink jet inks printing planar rondure helical coil structure to the surface of PI layer 4, and will have printed The PI layer 4 of planar rondure helical coil structure is adhered to the surface of sintered NZF layer 3；
Step 5: the total in glass substrate 1 is put into culture dish, pours into PDMS solution, it is made to impregnate glass Total on substrate 1 solidifies PDMS, obtains PDMS layer.
Step 6: cutting the periphery of PDMS layer, and silver-colored sacrificial layer 2 is made to be exposed to outside, by the total in glass substrate 1 It immerses in silver-colored etchant to remove desilver sacrificial layer 2, when silver-colored sacrificial layer 2 is dissolved completely in etchant, is embedded in NZF layer 3 and silver The PDMS of coil layer 5 is separated with glass substrate 1.
Embodiment 4
The present embodiment is related to a kind of preparation method of magnetic flexible wireless energy transfer receiving module, including following step It is rapid:
Step 1: preparing glass substrate 1, Ag layers thin in the surface printing of entire glass substrate 1 using Ag ink, and silver is made Sacrificial layer 2, silver-colored sacrificial layer 2 with a thickness of 1.8 μm；
Step 2: using ink-jet printer in silver-colored 2 surface printing NZF layer 3 of sacrificial layer, the thickness of NZF layer 3 is fixed on 25 μ m；
Step 3: infrared laser is connected on printing nozzle, laser sintered to use identical printer to carry out, The whole region of NZF layer 3 is irradiated by scanning laser beam, and sintered 3 dielectric constant of NZF layer is 97.6, and loss tangent is 0.044, knots modification after bending is 5%；
Step 4: it using Ag ink jet inks printing plane hexagonal helical coil structure to the surface of PI layer 4, and will have printed The PI layer 4 of plane hexagonal helical coil structure is adhered to the surface of sintered NZF layer 3；
Step 5: the total in glass substrate 1 is put into culture dish, pours into PDMS solution, it is made to impregnate glass Total on substrate 1 solidifies PDMS, obtains PDMS layer.
Step 6: cutting the periphery of PDMS layer, and silver-colored sacrificial layer 2 is made to be exposed to outside, by the total in glass substrate 1 It immerses in silver-colored etchant to remove desilver sacrificial layer 2, when silver-colored sacrificial layer 2 is dissolved completely in etchant, is embedded in NZF layer 3 and silver The PDMS of coil layer 5 is separated with glass substrate 1.
Fig. 2 is the structural schematic diagram that glass substrate 1 is not separated with silver-colored sacrificial layer in preparation method of the invention.
The above is a preferred embodiment of the present invention, cannot limit the right model of the present invention with this certainly It encloses, it is noted that for those skilled in the art, without departing from the principle of the present invention, may be used also To make several improvement and variation, these, which improve and change, is also considered as protection scope of the present invention.

Claims (7)

1. a kind of magnetic flexible wireless energy transfer receiving module, it is characterised in that: including thin magnetic film and it is coated on magnetic Property film periphery flexible layer, the thin magnetic film include from bottom to up sequentially connected nickel zinc magnetosphere, polyimide layer and Silver wire ring layer；The flexible layer is dimethyl silicone polymer layer.
2. a kind of preparation method of magnetic flexible wireless energy transfer receiving module as described in claim 1, feature It is, comprising the following steps: (1) preparing substrate prints Ag layers in substrate surface using Ag ink and silver-colored sacrificial layer is made；
(2) certain thickness nickel zinc magnetosphere is printed in silver-colored sacrificial layer surface；
(3) nickel zinc magnetosphere is carried out laser sintered；
(4) silver wire ring layer is made in the surface of polyimide layer using Ag ink print loop construction；
(5) polyimides is adhered to nickel zinc magnetic layer surface after sintering；
(6) product that the step (5) obtains is immersed in dimethyl silicone polymer solution, then makes to be wrapped in surface Dimethyl silicone polymer solidification, be made dimethyl silicone polymer layer；
(7) desilver sacrificial layer is removed, receives mould so that substrate be made to separate to get to the magnetic flexible wireless energy transfer Block.
3. the preparation method of magnetic flexible wireless energy transfer receiving module according to claim 2, feature exist In: in the step (1), substrate is glass substrate, silver-colored sacrificial layer with a thickness of 1.2-1.8 μm.
4. the preparation method of magnetic flexible wireless energy transfer receiving module according to claim 2, feature exist In: nickel zinc is magnetospheric with a thickness of 15-25 μm in the step (2).
5. the preparation method of magnetic flexible wireless energy transfer receiving module according to claim 2, feature exist In: in the step (3), the dielectric constant of sintered nickel zinc thin magnetic film is 97.6, loss tangent 0.044, after bending Knots modification less than 5%.
6. the preparation method of magnetic flexible wireless energy transfer receiving module according to claim 2, feature exist In: in the step step (4), loop construction be plane hexagonal spiral, planar square-spiral and plane round screw thread in extremely Few one kind.
7. the preparation method of magnetic flexible wireless energy transfer receiving module according to claim 2, feature exist In: in the step (7), go the operating procedure of desilver sacrificial layer are as follows: the periphery of cutting dimethyl silicone polymer layer makes silver-colored sacrifice Layer is exposed to outside, and will be described to get arriving to go desilver sacrificial layer to separate substrate in the silver-colored etchant of total immersion Magnetic flexibility wireless energy transfer receiving module.
CN201910414498.9A 2019-05-17 2019-05-17 Magnetic flexible wireless energy transfer receiving module of one kind and preparation method thereof Pending CN110164678A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202997050U (en) * 2012-12-10 2013-06-12 北京神州龙芯集成电路设计有限公司 Flexible circuit board antenna having magnetic conductive film
CN104889390A (en) * 2014-03-04 2015-09-09 张瑞龙 3D printing process of rare earth permanent magnetic material
CN105743191A (en) * 2016-03-24 2016-07-06 上海交通大学 MEMS-micromachined planar coil-based wireless charging device and preparation method thereof
CN106537531A (en) * 2014-07-17 2017-03-22 住友电工印刷电路株式会社 Flexible printed wiring substrate, antenna, and wireless power supply device
CN109545450A (en) * 2018-10-22 2019-03-29 清华大学 Flexible wire, the preparation method of flexible electronic device and flexible wireless energy supply device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202997050U (en) * 2012-12-10 2013-06-12 北京神州龙芯集成电路设计有限公司 Flexible circuit board antenna having magnetic conductive film
CN104889390A (en) * 2014-03-04 2015-09-09 张瑞龙 3D printing process of rare earth permanent magnetic material
CN106537531A (en) * 2014-07-17 2017-03-22 住友电工印刷电路株式会社 Flexible printed wiring substrate, antenna, and wireless power supply device
CN105743191A (en) * 2016-03-24 2016-07-06 上海交通大学 MEMS-micromachined planar coil-based wireless charging device and preparation method thereof
CN109545450A (en) * 2018-10-22 2019-03-29 清华大学 Flexible wire, the preparation method of flexible electronic device and flexible wireless energy supply device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KAVETI RAJARAM ET AL.: ""Flexible wireless power transfer module implemented with aerojet-printing and laser-sintering of rigid NiZn–ferrite ceramic films"", 《NANO ENERGY》 *

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Application publication date: 20190823