CN109398117B - Magnetic conduction plate of positioning separable transformer - Google Patents
Magnetic conduction plate of positioning separable transformer Download PDFInfo
- Publication number
- CN109398117B CN109398117B CN201811071079.1A CN201811071079A CN109398117B CN 109398117 B CN109398117 B CN 109398117B CN 201811071079 A CN201811071079 A CN 201811071079A CN 109398117 B CN109398117 B CN 109398117B
- Authority
- CN
- China
- Prior art keywords
- coils
- electromotive force
- separable transformer
- magnetizer
- series
- 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.)
- Active
Links
Images
Classifications
-
- 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
- H01F38/14—Inductive couplings
-
- 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 invention discloses a magnetic conductive plate for positioning a separable transformer, which comprises a support plate and a plurality of magnetic conductors, wherein the support plate is provided with a plurality of through holes, the magnetic conductors are wound with coils, the coils are connected with an electromotive force detection circuit, and the magnetic conductors wound with the coils are embedded and fixed in the through holes. When charging, alternating magnetic flux is generated in the magnetic conductor attached to the separable transformer, alternating electromotive force is generated in the corresponding coil, and the electromotive force detection circuit detects that the coil of the magnetic conductor generates the alternating electromotive force, so that the position of the separable transformer attached to the magnetic conductive plate can be judged; the induction is a magnetic field generated by the separable transformer, so that the identification degree is high, and the influence of foreign matters and other interference is not easy to occur; and weak links such as mechanical parts and optical parts which are easy to wear and damage are not arranged, so that the reliability is higher and the cost is lower.
Description
Technical Field
The invention relates to a magnetic conduction plate for positioning a separable transformer, and belongs to the technical field of electric automobile charging.
Background
The requirements of high power and high efficiency of charging of the electric automobile can be met by adopting a structure that a secondary side of a separable transformer at the side of the electric automobile, a ground directional magnetic conduction plate and a primary side of the separable transformer at the ground in a separable transformer mode. The secondary side of the separable transformer of the electric automobile automatically falls onto the directional magnetic conduction plate after parking, the primary side of the separable transformer and the secondary side of the separable transformer generate magnetic flux after being centered, and the magnetic flux is coupled with the secondary side of the separable transformer through the directional magnetic conduction plate to transmit electric energy. Compared with a remote magnetic resonance mode, because the magnetic circuit does not have an air gap with a larger distance, the excitation current is much smaller, the generated magnetic leakage is also greatly reduced, the higher efficiency can be achieved, the power is favorably improved, the electromagnetic interference is lighter, and the electromagnetic interference is suitable for electric automobiles. However, since the parking position of the electric vehicle is randomly changed, and the position of the secondary side of the separable transformer on the electric vehicle, which falls on the directional magnetic conductive plate, cannot be known in advance in order to reduce the weight of the mechanism on the electric vehicle side and simplify the structure, a detection device is required to determine and determine the specific position of the separable transformer on the directional magnetic conductive plate, so that the primary side of the ground-side separable transformer can be centered with the electric vehicle side, and high-power transmission can be realized.
Generally, there are several methods for position determination, one of which is to perform position determination by a special sensor, for example, a limit switch is attached. When the secondary side of the separable transformer falls onto the directional magnetic conduction plate, the limit switch at the corresponding position is triggered, and the judgment of the position can be realized. However, since the limit switches are easily touched by other objects to cause misjudgment, the cost is high and the reliability is low due to the plurality of limit switches. In addition, the methods such as microwave and laser have the problems of being easily interfered by foreign objects, being complicated and easily damaged, and the like.
Disclosure of Invention
In order to solve the technical problem, the invention provides a magnetic conduction plate for positioning a separable transformer.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a magnetic conduction board of separable transformer in location, includes backup pad and a plurality of magnetizer, it has a plurality of through-holes to open in the backup pad, around having the coil on the magnetizer, coil connection electromotive force detection circuit, the magnetizer embedding that winds there is the coil is fixed in the through-hole.
The upper end surface and the lower end surface of the magnetizer are respectively flush with the upper surface and the lower surface of the supporting plate.
The magnetizer is a cylinder.
And a metal framework is arranged in the supporting plate.
And a protective layer for protecting the magnetic material is coated on the surface of the magnetic conduction plate.
All the through holes are arranged into N1 columns and N2 rows, the coils wound on the magnetizers comprise row coils and column coils, the column coils of the magnetizers positioned in the same column are sequentially connected in series and then connected with the electromotive force detection circuit, and the coils of the magnetizers positioned in the same row are sequentially connected in series and then connected with the electromotive force detection circuit.
All the through holes are arranged into N1 columns and N2 rows, the magnetizer coils positioned in the same column/row are all connected with diodes in series, all the series branches are connected with the electromotive force detection circuit in parallel, and the conduction directions of the diodes connected in series with the magnetizer coils positioned in the same column/row are consistent.
All the through holes are arranged into N1 rows and N2 rows, the magnetizer coils positioned in the same row/row are all connected in series with a bridge rectifier circuit, and all the series branches are all connected in parallel to an electromotive force detection circuit.
All the through holes are arranged into N1 columns and N2 rows, diodes are connected in series at two ends of the magnetizer coils positioned in the same column/row, all the series branches are connected in parallel to the electromotive force detection circuit, and the conduction directions of the diodes connected in series with the magnetizer coils positioned in the same column/row are consistent.
The electromotive force detecting circuit is a voltage or current sensor.
The invention achieves the following beneficial effects: when charging, alternating magnetic flux is generated in the magnetic conductor attached to the separable transformer, alternating electromotive force is generated in the corresponding coil, and the electromotive force detection circuit detects that the coil of the magnetic conductor generates the alternating electromotive force, so that the position of the separable transformer attached to the magnetic conductive plate can be judged; the induction is a magnetic field generated by the separable transformer, so that the identification degree is high, and the influence of foreign matters and other interference is not easy to occur; and weak links such as mechanical parts and optical parts which are easy to wear and damage are not arranged, so that the reliability is higher and the cost is lower.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a structural diagram of a magnetizer and a coil;
FIG. 3 is a view showing an arrangement of through holes;
FIG. 4 is a connection circuit of example 1;
FIG. 5 shows the same row of connection structures in example 1;
FIG. 6 is a connection circuit of example 2;
FIG. 7 is a connection circuit of example 3;
fig. 8 is a connection circuit of example 4.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 and 2, a magnetic conductive plate of a positioning separable transformer comprises a support plate 1 and a plurality of magnetic conductors 2, wherein the support plate 1 is provided with a plurality of through holes 5, the support plate is made of a non-magnetic conductive insulating material, in order to enhance the mechanical strength of the positioning magnetic conductive plate, a metal framework is arranged in the support plate 1, and the exterior of the support plate is formed by injection molding of epoxy resin or plastic; the magnetizer 2 is mainly made of high-permeability materials such as ferrite, permalloy, amorphous alloy and silicon steel sheets, the magnetizer 2 is a cylinder, the cross section of each cylinder can be square, hexagonal, circular and the like, a coil 3 is wound on the magnetizer 2 through a coil framework 4, the coil 3 is connected with an electromotive force detection circuit 6, the magnetizer 2 wound with the coil 3 is embedded into a through hole 5 and is fixed in an injection molding mode, and the end surface of the magnetizer 2 is flush with the surface of the support plate 1; in order to protect the magnetic material (magnetizer 2) in the directional magnetic conduction plate, a protective layer is coated on the surface of the directional magnetic conduction plate.
The through holes 5 on the supporting plate 1 are uniformly distributed according to a certain rule, specifically, as shown in fig. 3, all the through holes 5 are arranged into N1 rows and N2 rows, the connection structure of the coil 3 and the electromotive force detection circuit 6 has various structures, and common specific structures can be divided into the following structures:
example 1: as shown in fig. 4 and 5, the coil 3 wound around the magnetizer 2 includes a row coil 32 and a column coil 31, the row coil 32 is located above, the column coil 31 is located below, N1+ N2 electromotive force detecting circuits 6 are located below, the electromotive force detecting circuits 6 employ voltage or current sensors, the row coils 31 of the magnetizer 2 located in the same column are sequentially connected in series, and then connected to one electromotive force detecting circuit 6, and the row coils 32 of the magnetizer 2 located in the same row are sequentially connected in series, and then connected to one electromotive force detecting circuit 6.
The working mode is as follows: when the separable transformer generates an alternating magnetic field, alternating magnetic flux is generated on the magnetizers 2 which are close to or in contact with the magnetizers, induced electromotive force is generated by the row coil 32 and the column coil 31, voltage or current is generated in the series circuit, the voltage or current is detected by a row or column voltage or current sensor, and then the row or column where the induced voltage or current is located is judged, and then the separable transformer is judged to be close to or in contact with the magnetizers 2 according to the voltage or current sensor, so that the separable transformer is positioned on the magnetizer.
Example 2: as shown in fig. 6, the coils 3 wound around the magnetizer 2 may be a group, N1+ N2 electromotive force detection circuits 6, the electromotive force detection circuits 6 are voltage or current sensors, the coils 3 of the magnetizer 2 located in the same column/row are all connected in series with diodes 7, all the series branches are connected in parallel to the electromotive force detection circuits 6, and the conduction directions of the diodes 7 connected in series with the coils 3 of the magnetizer 2 located in the same column/row are the same.
The working mode is as follows: when the separable transformer generates an alternating magnetic field, alternating magnetic flux can be generated on the magnetizers 2 which are close to or in contact with the magnetizers, the coil 3 generates induced electromotive force, and when the current direction generated by the induced electromotive force is consistent with the conduction direction of the diode 7, the row or the column where the induced voltage or the induced current is located is judged by detecting through the voltage or current sensors of the row or the column, and then the separable transformer is judged to be close to or in contact with the magnetizers 2 according to the judgment, so that the separable transformer is positioned on the magnetizer.
In the above example, two sets of coils 3 may be wound on the magnetizer 2, including the row coils 32 and the column coils 31, the row coils 31 of the magnetizer 2 in the same column are all connected in series with the diodes 7, the serial branches where all the row coils 31 are located are all connected in parallel to one electromotive force detection circuit 6, the row coils 32 of the magnetizer 2 in the same row are all connected in series with the diodes 7, the serial branches where all the row coils 32 are located are all connected in parallel to one electromotive force detection circuit 6, and the conduction directions of the diodes 7 of the magnetizer 2 coils in the same column/row are the same. The operation was the same as in example 2.
Example 3, as shown in fig. 7, the coils 3 wound around the magnetizer 2 may be a group of N1+ N2 electromotive force detecting circuits 6, the electromotive force detecting circuits 6 are voltage or current sensors, the coils 3 of the magnetizer 2 located in the same column/row are all connected in series with a bridge rectifier circuit, and all the series branches are connected in parallel to the electromotive force detecting circuits 6.
The working mode is as follows: when the separable transformer generates an alternating magnetic field, alternating magnetic flux can be generated on the magnetizers 2 which are close to or in contact with the magnetizers, the coil 3 generates induced electromotive force, the electromotive force forms current in a full-bridge rectification mode, the current is detected by the voltage or current sensors of the rows or the columns, the rows or the columns where the induced voltage or the induced current is located are further judged, and then the separable transformer is judged to be close to or in contact with the magnetizers 2 according to the current, so that the positioning of the separable transformer on the magnetizer is realized.
Example 4, as shown in fig. 8, the coils 3 wound around the magnetizer 2 may be a group, N1+ N2 electromotive force detecting circuits 6, the electromotive force detecting circuits 6 are voltage or current sensors, diodes 7 are connected in series to both ends of the coils 3 of the magnetizer 2 located in the same column/row, all the series branches are connected in parallel to the electromotive force detecting circuits 6, and the conduction directions of the diodes 7 connected in series to the coils 3 of the magnetizer 2 located in the same column/row are the same.
The working mode is as follows: when the separable transformer generates an alternating magnetic field, alternating magnetic flux can be generated on the magnetizer 2 which is close to or in contact with the magnetizer, the coil 3 generates induced electromotive force, when electromotive force in the positive direction and the negative direction is generated, current is generated on the transverse side in one direction, and current is generated in the vertical direction in the other direction. The line or the column where the induced voltage or the induced current is located is judged by detecting the voltage or the current sensors of the line and the column respectively, and then the line or the column where the separable transformer is close to or in contact with the magnetizers 2 is judged according to the judgment, so that the positioning of the separable transformer on the magnetizer is realized.
When the magnetic conductive plate is charged, alternating magnetic flux is generated on the magnetic conductor 2 attached to the separable transformer, alternating electromotive force is generated in the corresponding coil 3, and the coil 3 of the magnetic conductor 2 is detected to generate the alternating electromotive force through the electromotive force detection circuit 6, so that the position of the separable transformer attached to the magnetic conductive plate can be judged; the induction is a magnetic field generated by the separable transformer, so that the identification degree is high, and the influence of foreign matters and other interference is not easy to occur; and weak links which are easy to wear and damage such as mechanical parts and optical parts are not arranged, so that the reliability is higher and the cost is lower.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a magnetic conduction board of separable transformer in location which characterized in that: the electromagnetic induction type electromagnetic switch comprises a supporting plate and a plurality of magnetizers, wherein a plurality of through holes are formed in the supporting plate, coils are wound on the magnetizers, alternating magnetic flux is generated in the magnetizers, alternating electromotive force is generated in the coils of the magnetizers, the coils are connected with an electromotive force detection circuit, and the magnetizers wound with the coils are embedded and fixed in the through holes.
2. A magnetically permeable plate for positioning a separable transformer according to claim 1, wherein: the upper end surface and the lower end surface of the magnetizer are respectively flush with the upper surface and the lower surface of the supporting plate.
3. A magnetically permeable plate for positioning a separable transformer according to claim 2, wherein: the magnetizer is a cylinder.
4. A magnetically permeable plate for positioning a separable transformer according to claim 1, wherein: and a metal framework is arranged in the supporting plate.
5. A magnetically permeable plate for positioning a separable transformer according to claim 1, wherein: and a protective layer for protecting the magnetic material is coated on the surface of the magnetic conduction plate.
6. A magnetically permeable plate for positioning a separable transformer according to claim 1, wherein: all the through holes are arranged into N1 columns and N2 rows, the coils wound on the magnetizers comprise row coils and column coils, the column coils of the magnetizers positioned in the same column are sequentially connected in series and then connected with the electromotive force detection circuit, and the coils of the magnetizers positioned in the same row are sequentially connected in series and then connected with the electromotive force detection circuit.
7. A magnetically conductive plate for positioning a separable transformer as recited in claim 1, wherein: all the through holes are arranged into N1 columns and N2 rows, the magnetizer coils positioned in the same column/row are all connected with diodes in series, all the series branches are connected with the electromotive force detection circuit in parallel, and the conduction directions of the diodes connected in series with the magnetizer coils positioned in the same column/row are consistent.
8. A magnetically conductive plate for positioning a separable transformer as recited in claim 1, wherein: all the through holes are arranged into N1 rows and N2 rows, the magnetizer coils positioned in the same row/row are all connected in series with a bridge rectifier circuit, and all the series branches are all connected in parallel to an electromotive force detection circuit.
9. The magnetic conductive plate for positioning a separable transformer according to claim 1, wherein: all the through holes are arranged into N1 columns and N2 rows, diodes are connected in series at two ends of the magnetizer coils positioned in the same column/row, all the series branches are connected in parallel to the electromotive force detection circuit, and the conduction directions of the diodes connected in series with the magnetizer coils positioned in the same column/row are consistent.
10. A magnetically permeable plate for positioning a separable transformer according to claim 1, 6, 7, 8 or 9, wherein: the electromotive force detection circuit is a voltage or current sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811071079.1A CN109398117B (en) | 2018-09-14 | 2018-09-14 | Magnetic conduction plate of positioning separable transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811071079.1A CN109398117B (en) | 2018-09-14 | 2018-09-14 | Magnetic conduction plate of positioning separable transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109398117A CN109398117A (en) | 2019-03-01 |
| CN109398117B true CN109398117B (en) | 2022-06-17 |
Family
ID=65464284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811071079.1A Active CN109398117B (en) | 2018-09-14 | 2018-09-14 | Magnetic conduction plate of positioning separable transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109398117B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9747792B2 (en) * | 2012-11-12 | 2017-08-29 | Auckland Uniservices Limited | Vehicle or moving object detection |
| KR101274572B1 (en) * | 2012-12-05 | 2013-06-13 | 이현철 | Magnetic reinforce plate manufacturing method |
| CN203166636U (en) * | 2013-03-08 | 2013-08-28 | 惠州志顺电子实业有限公司 | Wireless charging system and wireless electric power emission device |
| CN203193350U (en) * | 2013-03-14 | 2013-09-11 | 安徽江淮汽车股份有限公司 | Electric automobile high-coupling coefficient wireless charging device |
| GB2512859A (en) * | 2013-04-09 | 2014-10-15 | Bombardier Transp Gmbh | Structure of a receiving device for receiving a magnetic field and for producing electric energy by magnetic induction |
| FR3009625B1 (en) * | 2013-08-06 | 2017-01-06 | Valotec | DEVICE FOR LOCATING ONE OR MORE MOBILE ELEMENTS IN A PREDETERMINED AREA, AND METHOD IMPLEMENTED IN SUCH A DEVICE |
| CN107813729B (en) * | 2017-12-08 | 2020-05-19 | 华中科技大学 | Method for identifying charging position in dynamic wireless charging system of electric vehicle |
-
2018
- 2018-09-14 CN CN201811071079.1A patent/CN109398117B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109398117A (en) | 2019-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10374467B2 (en) | Coil unit, wireless power feeding device, wireless power receiving device and wireless power transmission device | |
| KR101246878B1 (en) | Charging device using magnet | |
| US9441603B2 (en) | Apparatus for providing concentrated inductive power transfer | |
| EP2576274B1 (en) | A wireless power receiving unit, a wireless power transferring unit, a wireless power transferring device and use of a wireless power transferring device | |
| US20140183966A1 (en) | Inductive Power Supply System for Electric Operation Machine | |
| US20120103741A1 (en) | Ultra slim power supply device and power acquisition device for electric vehicle | |
| US11469621B2 (en) | Wireless charging apparatus using multiple coils and wireless charging system comprising the same | |
| WO2009041058A1 (en) | Electronic device, recharger and recharging system | |
| CN204179783U (en) | A kind of magneto magnetic pole box | |
| WO2019009241A1 (en) | Coil device | |
| CN110014896A (en) | A kind of wireless charging automobile and wireless charging road | |
| WO2015083202A1 (en) | Array coil system | |
| CN104038102A (en) | Composite magnetic coupling effect based device for harvesting energy from magnetic field of conductor | |
| CN109398117B (en) | Magnetic conduction plate of positioning separable transformer | |
| CN105591516A (en) | Spontaneous power generation device based on vibration mechanical energy | |
| US20170197510A1 (en) | Housing For at Least One Object Detection Device, Primary Unit and Payment Slab Assembly | |
| EP3284095A1 (en) | Inductive power transfer apparatus with improved coupling | |
| CN210954293U (en) | Alarm device capable of timely finding electric leakage of charging pile | |
| CN109159711A (en) | A kind of structure changes wireless charging device | |
| US9389619B2 (en) | Transformer core flux control for power management | |
| CN105425089A (en) | High-tension power transmission cable detection and alarm device | |
| US20170012458A1 (en) | Wireless charging board and wireless charging device | |
| CN207318745U (en) | For the foreign bodies detection coil in radio energy transmission system | |
| KR20170003581U (en) | Wireless power supply device using underground power cable | |
| US20240029948A1 (en) | Ferrite wings systems and methods for inductive wireless power transfer |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |