CN110265209A - Magnetic wire coil, wireless charging device and system - Google Patents
Magnetic wire coil, wireless charging device and system Download PDFInfo
- 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- Withdrawn
Links
- 238000004804 winding Methods 0.000 claims abstract description 35
- 239000000696 magnetic material Substances 0.000 claims abstract description 13
- 239000000969 carrier Substances 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods 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
- B60L53/12—Inductive energy transfer
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
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- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
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- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
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- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2871—Pancake coils
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- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-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
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.
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 |
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| CN (1) | CN110265209A (en) |
Cited By (3)
| 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 |
-
2019
- 2019-07-09 CN CN201910616369.8A patent/CN110265209A/en not_active Withdrawn
Cited By (3)
| 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 |
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Application publication date: 20190920 |
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