CN110265209A - Magnetic wire coil, wireless charging device and system - Google Patents

Magnetic wire coil, wireless charging device and system Download PDF

Info

Publication number
CN110265209A
CN110265209A CN201910616369.8A CN201910616369A CN110265209A CN 110265209 A CN110265209 A CN 110265209A CN 201910616369 A CN201910616369 A CN 201910616369A CN 110265209 A CN110265209 A CN 110265209A
Authority
CN
China
Prior art keywords
wire coil
wireless charging
magnetic wire
insulating layer
coil
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.)
Withdrawn
Application number
CN201910616369.8A
Other languages
Chinese (zh)
Inventor
张凯
徐喜红
宋磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Angie Wireless Technology (suzhou) Co Ltd
Original Assignee
Angie Wireless Technology (suzhou) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Angie Wireless Technology (suzhou) Co Ltd filed Critical Angie Wireless Technology (suzhou) Co Ltd
Priority to CN201910616369.8A priority Critical patent/CN110265209A/en
Publication of CN110265209A publication Critical patent/CN110265209A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12Inductive energy transfer
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • H01F27/22Cooling by heat conduction through solid or powdered fillings
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/24Magnetic cores
    • H01F27/245Magnetic cores made from sheets, e.g. grain-oriented
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2823Wires
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2871Pancake coils
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2876Cooling
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/324Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14Inductive couplings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

Abstract

The present invention provides a kind of magnetic wire coil, wireless charging device and system, wherein the magnetic wire coil is made by magnetic material, the carrier and magnetizer as electric car high-power wireless charging coil conducting wire;The magnetic wire coil includes: drum ontology and the winding slot that is opened on the drum ontology, the winding slot is opened in the one side of the drum ontology, and the winding slot is extended according to direction of winding, several heat release holes are also provided on the drum ontology, several heat release holes are evenly or unevenly distributed on the drum ontology.Magnetic material is directly made into drum by the present invention, and winding slot and heat release hole are opened up on drum, is slotted fixed on drum and is enhanced heat dissipation, so advantageously reduces loss, while being also helped reduction temperature rise, protection system, being reduced cost.

Description

Magnetic wire coil, wireless charging device and system
Technical field
Electric car high-power wireless is specifically applied to the present invention relates to electric vehicle engineering field more particularly to one kind to fill Magnetic wire coil, wireless charging device and the system of electricity.
Background technique
With the development of science and technology and the status of response environment problem, new-energy automobile has obtained quickly in recent years Development.Electric car in new-energy automobile, as power source, realizes electricity using clean energy resource using high-energy-density battery pack It can conversion.Currently, the battery pack of electric car relies primarily on charging pile, and charged by wired mode, however it is wired The mode convenience and versatility of charging are subject to certain restrictions.Therefore, wireless charging system can be used in existing electric car System charges.
In the high-power wireless charging system of new-energy automobile, power dissipation is reduced, it is most important to reduce temperature rise.However, Be spaced very big generation between coil and ferrite at present becomes to taking effect, and the heat that eddy current effect generates is very big, seriously affects The power of system hinders the application of electric vehicle high-power wireless charging.Therefore, in view of the above-mentioned problems, it is necessary to propose into One step ground solution.
Summary of the invention
The present invention is intended to provide it is a kind of, to overcome the deficiencies in the prior art.
In order to solve the above technical problems, the technical scheme is that
A kind of magnetic wire coil, the magnetic wire coil are made by magnetic material, are used as electric car high-power wireless The carrier and magnetizer of charging coil conducting wire;
The magnetic wire coil includes: drum ontology and the winding slot that is opened on the drum ontology, the winding slot It is opened in the one side of the drum ontology, and the winding slot is extended according to direction of winding, on the drum ontology also Several heat release holes are offered, several heat release holes are evenly or unevenly distributed on the drum ontology.
As the improvement of magnetic wire coil of the invention, the magnetic material is ferrite or nanocrystalline.
As the improvement of magnetic wire coil of the invention, the winding slot is in a manner of helix in the one of the drum ontology Face is extended continuously setting.
As the improvement of magnetic wire coil of the invention, the winding slot is two or greater than two.
As the improvement of magnetic wire coil of the invention, several heat release holes are distributed evenly in the gap between winding slot Place.
As the improvement of magnetic wire coil of the invention, the heat release hole is through-hole or blind hole.
In order to solve the above technical problems, the technical scheme is that
A kind of wireless charging device, it is described as transmitting terminal and/or receiving end in the charging of electric car high-power wireless Wireless charging device includes: the first insulating layer, coil, magnetic wire coil, second insulating layer, shielded layer;
The magnetic wire coil is magnetic wire coil as claimed in any one of claims 1 to 6, and the conducting wire for forming the coil is received It is dissolved in the winding slot of the magnetic wire coil, first insulating layer, magnetic wire coil, second insulating layer, shielded layer stack gradually Setting.
As the improvement of wireless charging device of the invention, the wireless charging device further includes being located at first insulation The first heat dissipating layer between layer and magnetic wire coil, the second heat dissipating layer between the magnetic wire coil and second insulating layer.
As the improvement of wireless charging device of the invention, first insulating layer and second insulating layer are XX, described the One heat dissipating layer and the second heat dissipating layer are graphene layer or graphite linings.
In order to solve the above technical problems, the technical scheme is that
A kind of wireless charging system comprising: it is installed on the first wireless charging device of vehicle-mounted side and is installed on ground side The second wireless charging device;
Structure such as any one of the claim 7 to 9 of first wireless charging device, the second wireless charging device it is wireless Described in charging unit, first wireless charging device is from bottom to top successively are as follows: the first insulating layer, magnetic wire coil, the second insulation Layer, shielded layer, second wireless charging device is from top to bottom successively are as follows: the first insulating layer, coil, magnetic wire coil, second are absolutely Edge layer, shielded layer.
Compared with prior art, the beneficial effects of the present invention are: magnetic material is directly made into drum by the present invention, and it is online Winding slot and heat release hole are opened up on disk, fluting is fixed on drum and enhances heat dissipation, so advantageously reduces loss, while also advantageous In reduction temperature rise, protection system, reduce cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The some embodiments recorded in invention, for those of ordinary skill in the art, without creative efforts, It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the stereoscopic schematic diagram of magnetic wire coil of the invention;
Fig. 2 is floor map when magnetic wire coil of the invention is engaged with winding wire;
Fig. 3 is the layer structural plan schematic diagram of wireless charging device of the invention.
Specific embodiment
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 description, 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.
As shown in Figure 1, the present invention considers: traditional high-power wireless charging receives or transmitting terminal is by coil, line Disk, magnetic material are constituted.Because of the skin effect of litz wire, the temperature rising of coil is very high, to be unfavorable for the stabilization of system Operation.Therefore, magnetic material is directly made into drum by the present invention, advantageously reduces loss, while being slotted admittedly on magnetic wire coil Alignment circle opens up and sets heat release hole to enhance heat dissipation, reduces temperature rise.
Magnetic wire coil of the invention is made by magnetic material, as electric car high-power wireless charging coil The carrier and magnetizer of conducting wire.Magnetic wire coil i.e. of the invention had not only been used as the installation carrier of coil to use, but also as wireless Magnetizer when charging uses.Preferably, the magnetic material is ferrite or nanocrystalline.
As shown in Figure 1, 2, the magnetic wire coil includes: drum ontology 1 and the coiling that is opened on the drum ontology 1 Slot 11.Wherein, the winding slot 11 is opened in the one side of the drum ontology 1, and the winding slot 11 is according to direction of winding It is extended.In one embodiment, the winding slot 11 is continuously prolonged in a manner of helix in the one side of the drum ontology 1 Stretch setting.In addition, settable a plurality of winding slot 11 as needed, such as the winding slot 11 are two or greater than two.Institute The depth design of winding slot 11 is stated as the receiving suitable for winding wire, i.e. the diameter of its depth and winding wire is adapted.
Further, be also provided with several heat release holes 12 on the drum ontology 1, several heat release holes 12 uniformly or It is non-uniformly distributed on the drum ontology 1.Preferably, several heat release holes 12 are distributed evenly between winding slot 11 Gap location.The heat release hole 12 is through-hole or blind hole.The shape of the heat release hole 12 can for round hole, polygonal hole, One or more of slotted eye or profiled holes.
It can be seen that the structure of magnetic wire coil of the invention is greatly simple, and dimensional thickness can all reduce, and advantageously reduce Material Cost, can in high volume, automated production.In addition, coil air core coil (i.e. line compared with the damascene structures of magnetic wire coil Enclose pitch of turn between non-magnetic material) improve 42% efficiency of transmission, lower efficiency losses.In addition, heat release hole 12 increases air Flowing, uniform heat are conducive to lower temperature, play certain heat-conducting effect.
Based on above-mentioned magnetic wire coil, the present invention also provides a kind of wireless charging devices, and it is high-power to can be used as electric car Transmitting terminal and/or receiving end in wireless charging.
As shown in figure 3, the wireless charging device includes: that the first insulating layer 10, coil 20, magnetic wire coil 30, second are exhausted Edge layer 40, shielded layer 50.
The magnetic wire coil 30 is magnetic wire coil 30 as described above, and the conducting wire for forming the coil 20 is contained in the magnetic In the winding slot of property drum 30.When wireless charging device of the invention is as transmitting terminal, the coil 20 is as reception exchange The coil 20 of exciting current uses;When wireless charging device of the invention is as receiving end, the coil 20 connects as energy Take-up circle 20 uses.
First insulating layer 10, magnetic wire coil 30, second insulating layer 40, shielded layer 50 are cascading.By institute Stating magnetic wire coil 30 also has good heat spreading function, therefore can be not provided with heat dissipating layer.
It can of course be it is intended that heat dissipating layer also can be set in order to obtain better heat dissipation effect.At this point, the nothing Line charge electric installation further includes the first heat dissipating layer between first insulating layer 10 and magnetic wire coil 30, is located at the magnetism The second heat dissipating layer between drum 30 and second insulating layer 40.Preferably, first insulating layer 10 and second insulating layer 40 are XX, first heat dissipating layer and the second heat dissipating layer are graphene layer or graphite linings.
Based on above-mentioned wireless charging device, the present invention also provides a kind of wireless charging systems comprising: it is installed on vehicle The second wireless charging device for carrying the first wireless charging device of side and being installed on ground side.
First wireless charging device, the second wireless charging device structure as described in above-mentioned wireless charging device, institute State the first wireless charging device from bottom to top successively are as follows: the first insulating layer, magnetic wire coil, second insulating layer, shielded layer, described Two wireless charging devices are from top to bottom successively are as follows: the first insulating layer, coil, magnetic wire coil, second insulating layer, shielded layer.
To, when the electric car with the first wireless charging device rests against charged area, first wireless charging Electric installation and the second wireless charging device are oppositely arranged.Second wireless charging device of ground side receives the alternating current electricity by conversion Stream, mains current are further converted into AC excitation electric current, and AC excitation electric current passes through the second wireless charging device coil, presses According to Faraday's law, energy is converted by alternating magnetic field, and the first wireless charging device coil receives energy, then passes through Rectification circuit charges to battery of electric vehicle.It should be noted that the conversion of mains current, the generation of AC excitation electric current with And rectification circuit etc. is by existing charging circuit.
In conclusion magnetic material is directly made into drum by the present invention, and winding slot and heat release hole are opened up on drum, line It slots fixed on disk and enhances heat dissipation, so advantageously reduce loss, while also helping reduction temperature rise, protection system, reducing Cost.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (10)

1. a kind of magnetic wire coil, which is characterized in that the magnetic wire coil is made by magnetic material, big as electric car The carrier and magnetizer of power wireless charging coil conducting wire;
The magnetic wire coil includes: drum ontology and the winding slot that is opened on the drum ontology, and the winding slot opens up In in the one side of the drum ontology, and the winding slot is extended according to direction of winding, is also opened up on the drum ontology There are several heat release holes, several heat release holes are evenly or unevenly distributed on the drum ontology.
2. magnetic wire coil according to claim 1, which is characterized in that the magnetic material is ferrite or nanocrystalline.
3. magnetic wire coil according to claim 1, which is characterized in that the winding slot is in a manner of helix in the line Disk ontology is extended continuously setting on one side.
4. magnetic wire coil according to claim 1, which is characterized in that the winding slot is two or greater than two.
5. magnetic wire coil according to claim 1, which is characterized in that several heat release holes are distributed evenly in winding slot Between gap location.
6. magnetic wire coil according to claim 1, which is characterized in that the heat release hole is through-hole or blind hole.
7. a kind of wireless charging device, as transmitting terminal and/or receiving end in the charging of electric car high-power wireless, feature It is, the wireless charging device includes: the first insulating layer, coil, magnetic wire coil, second insulating layer, shielded layer;
The magnetic wire coil is magnetic wire coil as claimed in any one of claims 1 to 6, and the conducting wire for forming the coil is contained in In the winding slot of the magnetic wire coil, first insulating layer, magnetic wire coil, second insulating layer, shielded layer are cascading.
8. wireless charging device according to claim 7, which is characterized in that the wireless charging device further includes being located at institute State the first heat dissipating layer between the first insulating layer and magnetic wire coil, second between the magnetic wire coil and second insulating layer Heat dissipating layer.
9. wireless charging device according to claim 8, which is characterized in that first insulating layer and second insulating layer are XX, first heat dissipating layer and the second heat dissipating layer are graphene layer or graphite linings.
10. a kind of wireless charging system, which is characterized in that the wireless charging system includes: to be installed on the first nothing of vehicle-mounted side Line charge electric installation and the second wireless charging device for being installed on ground side;
The wireless charging of any one of the structure such as claim 7 to 9 of first wireless charging device, the second wireless charging device Described in device, first wireless charging device is from bottom to top successively are as follows: the first insulating layer, magnetic wire coil, second insulating layer, screen Cover layer, second wireless charging device is from top to bottom successively are as follows: the first insulating layer, coil, magnetic wire coil, second insulating layer, Shielded layer.
CN201910616369.8A 2019-07-09 2019-07-09 Magnetic wire coil, wireless charging device and system Withdrawn CN110265209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910616369.8A CN110265209A (en) 2019-07-09 2019-07-09 Magnetic wire coil, wireless charging device and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910616369.8A CN110265209A (en) 2019-07-09 2019-07-09 Magnetic wire coil, wireless charging device and system

Publications (1)

Publication Number Publication Date
CN110265209A true CN110265209A (en) 2019-09-20

Family

ID=67925312

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910616369.8A Withdrawn CN110265209A (en) 2019-07-09 2019-07-09 Magnetic wire coil, wireless charging device and system

Country Status (1)

Country Link
CN (1) CN110265209A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112462309A (en) * 2020-10-30 2021-03-09 嘉兴学院 Magnetic resonance coil device for wireless power transmission
WO2021114076A1 (en) * 2019-12-10 2021-06-17 瑞声声学科技(深圳)有限公司 Wireless charging module
WO2022064470A1 (en) * 2020-09-28 2022-03-31 Molex Cvs Dabendorf Gmbh Litz wires with ferromagnetic covers, coil topologies, and coils

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021114076A1 (en) * 2019-12-10 2021-06-17 瑞声声学科技(深圳)有限公司 Wireless charging module
WO2022064470A1 (en) * 2020-09-28 2022-03-31 Molex Cvs Dabendorf Gmbh Litz wires with ferromagnetic covers, coil topologies, and coils
CN112462309A (en) * 2020-10-30 2021-03-09 嘉兴学院 Magnetic resonance coil device for wireless power transmission

Similar Documents

Publication Publication Date Title
CN110265209A (en) Magnetic wire coil, wireless charging device and system
CN108321914B (en) Coil, wireless charging receiving device, transmitting device and system
CN106340940B (en) A kind of wireless charging battery
US7755008B2 (en) Electrical energy generating apparatus
CN106876116A (en) New double square structure wireless charge coil
CN203225594U (en) Electric energy transmitting and receiving device of high-efficiency large-power non-contact charging system
CN203398880U (en) Wireless charger receiver with good compatibility
CN103051024A (en) Wireless charging method and wireless charger
CN206211682U (en) Wireless energy receiving mechanism
CN210628064U (en) Magnetic wire coil, wireless charging device and wireless charging system
CN202796405U (en) Transmitting coil winding structure for all-dimensional wireless charger
CN209708818U (en) A kind of modular wireless charging unit
CN210837457U (en) Wireless charging orthogonal coil structure of electric automobile
CN106300695A (en) A kind of wireless charging method for mobile phone
CN209249255U (en) A kind of flat transformer
CN109411223B (en) Manufacturing method of high-frequency transformer
CN110867314A (en) Wireless charging orthogonal coil structure of electric automobile
CN209515429U (en) Wireless charging device
CN209581174U (en) A kind of wireless charging device
CN103219808A (en) Wireless charger receiver with good compatibility
CN203312924U (en) Wireless charger receiving end with flexible circuit board
CN201830050U (en) Iron core winding for generator, motor or transformer
CN209581173U (en) Modular wireless charging unit
CN109148110A (en) A kind of reduction AC resistance FPC structure
CN209496711U (en) Integrated coil mould group, wireless charging device and system

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
WW01 Invention patent application withdrawn after publication

Application publication date: 20190920

WW01 Invention patent application withdrawn after publication