CN109256257A - A kind of orientation magnetic conductive board and transformer used in conjunction with - Google Patents
A kind of orientation magnetic conductive board and transformer used in conjunction with Download PDFInfo
- Publication number
- CN109256257A CN109256257A CN201811071107.XA CN201811071107A CN109256257A CN 109256257 A CN109256257 A CN 109256257A CN 201811071107 A CN201811071107 A CN 201811071107A CN 109256257 A CN109256257 A CN 109256257A
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- Prior art keywords
- transformer
- guide plate
- magnetic guide
- directional magnetic
- magnetic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
-
- H—ELECTRICITY
- H01—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
-
- H—ELECTRICITY
- H01—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
-
- H—ELECTRICITY
- H01—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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
本发明公开了一种定向导磁板，包括支撑板和若干导磁体，支撑板上开有若干嵌导磁体的通孔，导磁体嵌入并固定在通孔内。同时还公开了与该定向导磁板配合使用的变压器，变压器原边侧和副边侧在充电时分别与定向导磁板的两个面接触，与定向导磁板接触的变压器磁芯部分设置有外延边，外延边与定向导磁板接触。本发明的定向导磁板能够隔离变压器原副边，实现电压器的隔离，同时能够提高变压器原副边之间的磁通耦合程度，减少漏磁，这样就可以提高整体的传输效率，并能够提高传输功率；变压器增加了外延边，增强了变压器与定向导磁板的接触面积，降低了传递环节的磁阻，进而减少了产生磁场的损耗，提高了效率。
The invention discloses a directional magnetic guide plate, which comprises a support plate and a plurality of magnet guide bodies. The support plate is provided with a plurality of through holes for embedding the magnet guide bodies, and the magnet guide bodies are embedded and fixed in the through holes. At the same time, a transformer used in conjunction with the directional magnetic guide plate is also disclosed. The primary side and the secondary side of the transformer are respectively in contact with two surfaces of the directional magnetic guide plate during charging, and the part of the transformer magnetic core in contact with the directional magnetic guide plate is provided with There is an epitaxial edge, and the epitaxial edge is in contact with the directional magnetic guide plate. The directional magnetic guide plate of the present invention can isolate the primary and secondary sides of the transformer, realize the isolation of the voltage device, and at the same time can improve the degree of magnetic flux coupling between the primary and secondary sides of the transformer, and reduce the magnetic leakage, so that the overall transmission efficiency can be improved, and the Improve the transmission power; the transformer increases the extension edge, enhances the contact area between the transformer and the directional magnetic guide plate, reduces the magnetic resistance of the transmission link, thereby reduces the loss of the magnetic field and improves the efficiency.
Description
Technical field
The present invention relates to a kind of orientation magnetic conductive board and transformers used in conjunction with, belong to electric car charging technique neck
Domain.
Background technique
Electric car can well solve automobile pollution discharge and energy shortage problem, therefore receive many countries
With the encouragement of government, many automobile vendors have also been put into the research and development and production of electric car.The charging side of electric car
There are mainly two types of methods: one is wired chargings, also make contact charge, it mainly includes standard charging, quick charge and battery
Replace 3 kinds of modes.One is wireless chargings, and non-contact type is also made to charge, this is a kind of novel charging modes, common are with
Lower 3 kinds: induction type wireless power transmission is loose couplings structure, is equivalent to separable transformer；The transmission of resonance type wireless electric energy utilizes
Near field electromagnetic resonance coupling may be implemented distance in electric energy and effectively transmit；The transmission of microwave electric energy is a kind of far-field radiation type energy
Transmission mode since its efficiency of transmission is very low, and is held generation Radiation On Human body and is damaged, therefore be not suitable for filling for automobile
Electricity.
Induction charging mode is compared with resonant mode charging modes, it is characterized in that magnetic flux exists only in magnetic core substantially,
Magnetic permeability is higher on the circulation path in magnetic field, therefore the magnetic resistance of magnetic circuit is smaller, although the distance of excitation wireless transmission is smaller,
Efficiency is higher, transimission power is larger, amount of radiation is smaller, therefore relative to resonant mode charging modes, it is big to be more suitable for electric car
Power, efficient requirement.But common induction charging mode transmission range is closer, it is therefore desirable to need on core structure
More careful design.
Traditional induction charging mode, the substantially form of separable transformer, magnetic circuit are mainly made of primary and secondary side,
Therefore primary and secondary side contacts with each other, and centre is not isolated accordingly.But in electric car charging technique, usually
It saves the area, primary side is located on ground, this will result in following problem:
First, directly exposed primary side magnetic core will receive dust, ponding, accumulated snow, vehicle and roll even foreign objects such as pavement garbage
It corrodes and damages, will cause the problem of primary side magnetic core is easily damaged, cause reliability decrease, relevant maintenance and the use of system
The problem of increased costs.But if keeping apart the magnetic core on ground and exterior space using partition, and it will cause former pair
The air gap on side increases, and is unfavorable for the efficiency of transmission and power of increase system.
Second, if using the isolation board of magnetic conduction merely, it can often receive automobile due to being placed on the ground and roll,
Need certain mechanical strength.But general high frequency permeability magnetic material is more crisp, is easily broken off, and uses therefore, it is difficult to meeting ground
The requirement of mechanical strength.
Third, isolation board made of simple magnetic material, if be all made of high magnetic material, it will cause isolations
The effect in magnetic field, it is difficult to guarantee the requirement of the circulation in automobile and charged side magnetic field.
Therefore design can either pass through magnetic field, and unilateral closure magnetic flux will not be formed in magnetic conductive board, and can
Make primary and secondary side that there is the biggish coefficient of coup, for solving the problems, such as that it is non-that electric car high efficiency, high-power charging have
Often important meaning.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of orientation magnetic conductive board and transformations used in conjunction with
Device.
In order to achieve the above object, the technical scheme adopted by the invention is that:
A kind of orientation magnetic conductive board, including support plate and several magnetizers are provided with the through-hole of several embedding magnetizers in the support plate,
The magnetizer is embedded in and is fixed in through-hole.
The end face of magnetizer is flushed with the surface of support plate.
The magnetizer is in cylinder.
Metallic framework is provided in the support plate.
The surface of the orientation magnetic conductive board is coated with one layer of protective layer to protect magnetic material.
The transformer being used cooperatively with above-mentioned orientation magnetic conductive board, transformer are detachable Transformer, transformer primary avris and
Secondary side is located at the two sides of orientation magnetic conductive board, and two face contacts with orientation magnetic conductive board respectively in charging, and fixed
The magnetic core of transformer part contacted to magnetic conductive board is provided with extension side, and the extension side is contacted with orientation magnetic conductive board.
The magnetic core of transformer is the pot type magnetic core surrounded entirely.
Transformer is flat structure.
Advantageous effects of the invention: 1, orientation magnetic conductive board of the invention can the former secondary side of isolating transformer, realize
The isolation of voltage device, while can be improved the magnetic flux degree of coupling between transformer primary pair side, leakage field is reduced, can thus be mentioned
High whole efficiency of transmission, and can be improved transimission power, for electric car charging application, it is meant that can reduce and fill
The electricity charge of electricity are spent, and improve the utilization efficiency of electric energy, using electricity wisely；2, orientation magnetic conductive board of the invention and traditional magnetic conductive board phase
Than there is certain mechanical strength, rolled not easy to break；3, transformer of the invention increases extension side, enhances transformation
The contact area of device and orientation magnetic conductive board, reduces the magnetic resistance of transmission link, and then reduces the loss for generating magnetic field, improves
Efficiency；4, magnetic core of transformer of the invention is the pot type magnetic core surrounded entirely, reduces leakage field and electromagnetic radiation；5, change of the invention
Depressor is flat flat structure, the small space suitable for electric car bottom and ground configuration.
Detailed description of the invention
Fig. 1 is the top view for orienting magnetic conductive board.
Fig. 2 is the cross-sectional view for orienting magnetic conductive board.
Fig. 3 is cross-sectional view when orienting magnetic conductive board isolating transformer.
Fig. 4 is the schematic diagram on transformer extension side.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As illustrated in fig. 1 and 2, a kind of orientation magnetic conductive board, including support plate 1 and several magnetizers 2, if being provided in support plate 1
The through-hole of the dry embedding magnetizer 2 being evenly distributed according to certain rule, in order to enhance the mechanical strength of orientation magnetic conductive board, support plate 1
It is inside provided with metallic framework, outside is formed by epoxy resin or plastic injection；Magnetizer 2 is mainly by by ferrite, perm conjunction
The high permeability materials such as gold, amorphous alloy, silicon steel sheet are made, and magnetizer 2 is in cylinder, and the cross section of each cylinder can be pros
Shape, hexagon, circle etc., generally match with through-hole, and magnetizer 2 is embedded in through-hole, and is fixed by injection molding manner, magnetizer 2
End face flushed with the surface of support plate 1；In order to protect the magnetic material (magnetizer 2) in orientation magnetic conductive board, in orientation magnetic conduction
The surface of plate is coated with a protective layer.
As shown in Figures 3 and 4, the transformer being used cooperatively with above-mentioned orientation magnetic conductive board, transformer are detachable Transformer, are become
Depressor primary side side and secondary side are located at the two sides of orientation magnetic conductive board, and two with orientation magnetic conductive board respectively in charging
Face contact, the magnetic core of transformer part contacted with orientation magnetic conductive board are provided with extension side 5, and extension side 5 also connects with orientation magnetic conductive board
Touching.
In order to adapt to the small space of electric car bottom and ground configuration, transformer uses flat structure, as long as main body
Keep flat structure, the magnetic core of transformer can be E type or pot type magnetic core, but in order to reduce leakage field and reduce electromagnetic radiation this
In using the pot type magnetic core that surrounds entirely, the pot type magnetic core surrounded entirely includes stem 3 and lateral column 4, in charging, primary side side core column 3
The outside of following table face contact with lateral column 4 with orientation magnetic conductive board, primary side side core column 3 and lateral column 4 increases extension side 5, secondary side
Side core column 3 and lateral column 4 are contacted with the upper surface of orientation magnetic conductive board, and the outside of primary side side core column 3 and lateral column 4 increases extension side
5；The section on extension side 5 is cyclic structure.
Above-mentioned orientation magnetic conductive board can the former secondary side of isolating transformer, realize the isolation of voltage device, while can be improved transformation
Magnetic flux degree of coupling between the former secondary side of device, reduces leakage field, whole efficiency of transmission thus can be improved, and can be improved biography
Defeated power, for electric car charging application, it is meant that the electricity charge that can reduce charging are spent, and that improves electric energy utilizes effect
Rate, using electricity wisely.Above-mentioned transformer increases extension side 5, enhances transformer and orients the contact area of magnetic conductive board, reduces
The magnetic resistance of transmission link, and then reduce the loss for generating magnetic field, improve efficiency.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811071107.XA CN109256257A (en) | 2018-09-14 | 2018-09-14 | A kind of orientation magnetic conductive board and transformer used in conjunction with |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811071107.XA CN109256257A (en) | 2018-09-14 | 2018-09-14 | A kind of orientation magnetic conductive board and transformer used in conjunction with |
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| Publication Number | Publication Date |
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| CN109256257A true CN109256257A (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811071107.XA Pending CN109256257A (en) | 2018-09-14 | 2018-09-14 | A kind of orientation magnetic conductive board and transformer used in conjunction with |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021160653A3 (en) * | 2020-02-13 | 2021-10-07 | Mahle International Gmbh | Induction charging device for a vehicle charging system |
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| CN203193350U (en) * | 2013-03-14 | 2013-09-11 | 安徽江淮汽车股份有限公司 | A wireless charging device with high coupling coefficient for electric vehicles |
| CN103339698A (en) * | 2011-01-19 | 2013-10-02 | 株式会社泰库诺瓦 | Contactless power supply device |
| CN103847187A (en) * | 2012-12-05 | 2014-06-11 | 株式会社Dic | Magnet-type reinforcing plate and manufacturing method thereof |
| CN105337336A (en) * | 2014-08-04 | 2016-02-17 | 福特全球技术公司 | Inductive wireless power transfer system having coupler assembly |
| CN105958659A (en) * | 2016-05-25 | 2016-09-21 | 北京航空航天大学 | Asymmetric electromagnetic coupler suitable for wireless charging device |
| CN107359655A (en) * | 2017-07-12 | 2017-11-17 | 广东小天才科技有限公司 | Wireless charging transmitting device, receiving device and wireless charging system |
| CN207474253U (en) * | 2017-12-11 | 2018-06-08 | 浙江省东阳市东磁诚基电子有限公司 | A kind of multi-layer FPC loop construction for wireless charging |
| CN207542053U (en) * | 2017-12-11 | 2018-06-26 | 浙江省东阳市东磁诚基电子有限公司 | A kind of double-deck FPC loop constructions for wireless charging |
| CN108418317A (en) * | 2018-02-08 | 2018-08-17 | 深圳顺络电子股份有限公司 | Wireless charging magnetic conductive board and preparation method thereof and wireless charging module |
-
2018
- 2018-09-14 CN CN201811071107.XA patent/CN109256257A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103339698A (en) * | 2011-01-19 | 2013-10-02 | 株式会社泰库诺瓦 | Contactless power supply device |
| CN103847187A (en) * | 2012-12-05 | 2014-06-11 | 株式会社Dic | Magnet-type reinforcing plate and manufacturing method thereof |
| CN203193350U (en) * | 2013-03-14 | 2013-09-11 | 安徽江淮汽车股份有限公司 | A wireless charging device with high coupling coefficient for electric vehicles |
| CN105337336A (en) * | 2014-08-04 | 2016-02-17 | 福特全球技术公司 | Inductive wireless power transfer system having coupler assembly |
| CN105958659A (en) * | 2016-05-25 | 2016-09-21 | 北京航空航天大学 | Asymmetric electromagnetic coupler suitable for wireless charging device |
| CN107359655A (en) * | 2017-07-12 | 2017-11-17 | 广东小天才科技有限公司 | Wireless charging transmitting device, receiving device and wireless charging system |
| CN207474253U (en) * | 2017-12-11 | 2018-06-08 | 浙江省东阳市东磁诚基电子有限公司 | A kind of multi-layer FPC loop construction for wireless charging |
| CN207542053U (en) * | 2017-12-11 | 2018-06-26 | 浙江省东阳市东磁诚基电子有限公司 | A kind of double-deck FPC loop constructions for wireless charging |
| CN108418317A (en) * | 2018-02-08 | 2018-08-17 | 深圳顺络电子股份有限公司 | Wireless charging magnetic conductive board and preparation method thereof and wireless charging module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021160653A3 (en) * | 2020-02-13 | 2021-10-07 | Mahle International Gmbh | Induction charging device for a vehicle charging system |
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Application publication date: 20190122 |