WO2009104474A1 - 受電用コイルブロック - Google Patents
受電用コイルブロック Download PDFInfo
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- WO2009104474A1 WO2009104474A1 PCT/JP2009/051875 JP2009051875W WO2009104474A1 WO 2009104474 A1 WO2009104474 A1 WO 2009104474A1 JP 2009051875 W JP2009051875 W JP 2009051875W WO 2009104474 A1 WO2009104474 A1 WO 2009104474A1
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- WIPO (PCT)
- Prior art keywords
- magnetic plate
- magnetic
- power
- coil
- power reception
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- 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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- 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
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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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
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- 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
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- 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
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
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- 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
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F2027/348—Preventing eddy currents
Definitions
- the present invention relates to a power reception coil block, and more particularly to a power reception coil block used for a noncontact power transmission device that transmits power using electromagnetic induction.
- non-contact power transmission device that transmits power in a non-contact manner using electromagnetic induction.
- This type of non-contact power transmission device includes a power feeding coil block including a power feeding coil, and a power receiving coil block including a power receiving coil magnetically coupled to the power feeding coil.
- the Japanese Patent Application Laid-Open Publication discloses that a planar coil is used as a power reception coil.
- the planar coil has an advantage that it can be made thinner than a coil formed by winding a conductive wire around a core or a bobbin, but has a disadvantage that the magnetic characteristics are inferior.
- An object of the present invention is to provide a power reception coil block capable of suppressing the temperature rise of the magnetic plate and enhancing the power transmission efficiency.
- the power receiving coil block according to the present invention is used for a noncontact power transmission device that transmits power noncontacting using electromagnetic induction.
- the power reception coil block includes a power reception coil magnetically coupled to the power supply coil during power transmission, and a magnetic plate formed of a conductive magnetic material.
- the power reception coil is a planar coil. Further, the magnetic plate is disposed in parallel to the power reception coil in a state where the surface is directed to the power reception coil. And, a void is formed at least on the surface of the magnetic plate.
- the eddy current since the flow of the eddy current is limited by the space formed in the magnetic plate, the eddy current hardly flows in the magnetic plate. Therefore, the temperature rise due to the eddy current flowing in the magnetic plate can be suppressed, and the heat loss can be reduced. Further, since the eddy current loss can be reduced, the power transmission efficiency can be enhanced.
- the void is a slit.
- the eddy current is interrupted at the space. Therefore, the eddy current can be made smaller compared to the case where the space is a groove.
- the void is a groove.
- the handling of the magnetic plate becomes easier as compared to the case where the space is a slit.
- the space is formed along the direction of the magnetic flux passing through the magnetic plate at the time of power transmission.
- the void has a density of the void at a portion where the density of magnetic flux passing through the magnetic plate is relatively high during power transmission is higher than a portion at which the density of magnetic flux passing through the magnetic plate is relatively low.
- a plurality of magnetic plates are formed on the magnetic plate so that
- eddy current can be efficiently suppressed.
- FIG. 2 is an exploded perspective view showing a power reception coil block of the first embodiment. It is a top view of the magnetic board in the same as the above. It is explanatory drawing of the eddy current which flows into the magnetic board in the same as the above, and (a) has shown the case where there is a slit, when there is no slit. It is explanatory drawing of the formation method of the slit in the same as the above.
- the magnetic board in Embodiment 2 is shown, (a) is a perspective view by the side of the surface, (b) is a perspective view by the side of a back.
- the other example of the magnetic board in the same as the above is shown, (a) is a perspective view, (b) is a side view.
- FIG. 14 is a cross-sectional view in which a part of the power reception coil block of the third embodiment is omitted.
- FIG. 16 is a plan view of a magnetic plate in Embodiment 4; It is explanatory drawing which shows the relationship of the direction of magnetic flux, and the direction of an eddy current.
- FIG. 20 is a plan view of a magnetic plate in Embodiment 5;
- FIG. 18 is an exploded perspective view of a power reception coil block of a sixth embodiment. It is a disassembled perspective view of the other example of the coil block for power reception in the same as the above.
- the power receiving coil block of the present embodiment together with a power feeding coil block including a power feeding coil (not shown), constitutes a non-contact power transmission device that transmits power in a non-contact manner using electromagnetic induction.
- a power feeding coil block and a power receiving coil block are separated.
- the power receiving coil block is disposed at a specified position with respect to the power feeding coil block.
- the specified position is a position at which a transformer having the power receiving coil as the secondary coil and the power transmitting coil as the primary coil is formed by magnetically coupling the power receiving coil and the power transmitting coil.
- the contactless power transmission device power is transmitted contactlessly from the power transmission coil block to the power reception coil block using the transformer.
- the power reception coil block of the present embodiment includes a power reception coil 1 magnetically coupled to a power feeding coil during power transmission, a magnetic plate 2, and a shield plate 3.
- the power receiving coil 1 is a planar coil.
- the planar coil in the present embodiment is formed by spirally winding a conducting wire in the same plane. Such a planar coil is well known in the prior art, so detailed description will be omitted.
- the power reception coil 1 is disposed on the surface side (one surface side in the thickness direction, the lower surface side in FIG. 1) of the magnetic plate 2. Therefore, when performing power transmission using the power receiving coil block of the present embodiment, the power feeding coil block is disposed on the opposite side (lower surface side in FIG. 1) of the power receiving coil 1 to the magnetic body 2 side.
- the magnetic plate 2 is used to increase the efficiency of power transmission using electromagnetic induction from the power feeding coil to the power receiving coil 1.
- the magnetic plate 2 is formed in, for example, a rectangular (square in the illustrated example) flat plate shape using a conductive magnetic material.
- a conductive magnetic material For example, an amorphous magnetic material is used as the magnetic material.
- the magnetic plate 2 is disposed in parallel to the power reception coil 1 with the surface directed to the power reception coil 1.
- the power reception coil 1 is bonded to the surface of the magnetic plate 2 using an adhesive (for example, an adhesive sheet) or the like.
- An insulating member may be disposed between the power receiving coil 1 and the magnetic plate 2 as necessary.
- a plurality of linear slits 4 are formed on the surface of the magnetic plate 2 in the present embodiment.
- the slit 4 is a space formed on the surface of the magnetic plate 2.
- the plurality of slits 4 are formed in the magnetic plate 2 in a lattice shape. More specifically, the magnetic plate 2 has a plurality of slits 4 (hereinafter referred to as 4A if necessary) parallel to one side of the surface of the magnetic plate 2 and a plurality of slits 4 orthogonal to the slits 4A. (Hereinafter referred to as 4 B as necessary) are formed.
- the slits 4A and the slits 4B are formed at equal intervals, respectively. Further, the distance between the slit 4A and the slit 4B is, for example, about 0.1 to 5.0 mm. In the example shown in FIG. 2, the slits 4 are not formed up to the edge of the magnetic plate 2.
- the edge of the magnetic plate 2 functions as a frame. As shown in FIG. 2, handling of the magnetic plate 2 is facilitated.
- the slits 4 may be formed up to the edge of the magnetic plate 2.
- the shield plate 3 is formed, for example, in a rectangular (square in the illustrated example) flat plate shape using a magnetic material.
- the shield plate 3 is disposed on the back surface side (the other surface side in the thickness direction, the upper surface side in FIG. 1) of the magnetic plate 2.
- the shield plate 3 is bonded to the back surface of the magnetic plate 2 using an adhesive or the like. Therefore, the power reception coil block of the present embodiment is formed by sequentially stacking the power reception coil 1, the magnetic plate 2, and the shield plate 3. Then, in the coil block for power reception, the shield plate 3 is used as a magnetic shield for magnetic flux leakage prevention.
- the shield plate 3 also has a function as a heat sink.
- the magnetic material used for the shield plate 3 may be the same as the magnetic plate 2 or may be another material.
- the power receiving coil block of the present embodiment includes the power receiving coil 1 magnetically coupled to the power feeding coil at the time of power transmission, and the magnetic plate 2 formed of the conductive magnetic material.
- the power reception coil 1 is a flat coil.
- the magnetic plate 2 is disposed in parallel to the power reception coil 1 in a state where the surface is directed to the power reception coil 1.
- the slits 4 are formed in the magnetic plate 2.
- Such a power reception coil block of the present embodiment is used for a noncontact power transmission device that transmits power in a noncontact manner using electromagnetic induction. And in performing electric power transmission, the coil block for power reception is arrange
- the feeding coil of the feeding coil block is a flat coil
- the prescribed position is a position where the center of the feeding coil coincides with the center of the receiving coil 1 (however, in a strict sense) It does not have to match, but it can be regarded as a range that can be regarded as roughly matching).
- the magnetic plate 2 does not have the slits 4, as shown in FIG. 3A, a relatively large eddy current I flows in the entire magnetic plate 2.
- the slits 4 are formed in the magnetic plate 2. Since the slit 4 penetrates the magnetic plate 2 in the thickness direction, the eddy current 4 can not flow past the slit 4. Therefore, in the case of the magnetic plate 2 in the present embodiment, the eddy current I flows in each of the portions of the magnetic plate 2 divided by the slits 4 as shown in FIG. 3 (b). Therefore, a large eddy current I as shown in FIG. 3A does not flow in the magnetic plate 2 in the present embodiment.
- the slit 4 suppresses the eddy current flowing in the magnetic plate 2 by the magnetic flux M penetrating the magnetic plate 2. Therefore, when the slit 4 is not provided, a large eddy current I flows in the magnetic plate 2 due to the magnetic flux M as shown in FIG. 3 (a).
- the magnetic plate 2 is finely divided by forming the slits 4, as shown in FIG. 3 (b)
- the eddy currents I only flow in the finely divided portions of the magnetic plate 2. Therefore, a large eddy current I does not flow in the magnetic plate 2.
- the flow of the eddy current is restricted by the slits 4 formed in the magnetic plate 2, so the eddy current hardly flows in the magnetic plate 2. Therefore, the temperature rise due to the eddy current flowing through the magnetic plate 2 can be suppressed, and the heat loss can be reduced. Further, since the eddy current loss can be reduced, the power transmission efficiency can be enhanced.
- the slit 4 is formed on the surface of the magnetic plate 2 as a space. Since the slit 4 penetrates the magnetic plate 2, the eddy current is interrupted by the slit 4. Therefore, the eddy current can be made smaller than when the void is a groove. That is, according to the coil block for power reception of the present embodiment, it is possible to suppress the decrease in the power transmission efficiency due to the heat loss generated by the generation of the eddy current. Therefore, the improvement of the power transmission efficiency by providing the magnetic plate 2 can be effectively obtained.
- the magnetic plate 2 is divided into plural pieces by the slits 4. . That is, it can be said that the magnetic plate 2 in the present embodiment is formed by arranging a plurality of magnetic members in a planar shape.
- the handling of the magnetic plate 2 becomes difficult. Therefore, when forming the slits 4 in a lattice shape on the magnetic plate 2, as shown in FIGS. 4A and 4B, the slits 4 are formed after the magnetic plate 2 and the shield plate 3 are joined. Is considered.
- a notch 40 having a V-shaped cross section is formed in the area of the surface of the magnetic plate 2 where the slit 4 is to be formed.
- the magnetic plate 2 in which the cuts 40 are formed is joined to the shield plate 3 and then pressure is applied to the magnetic plate 2 by rolling or the like.
- the magnetic plate 2 is broken along the cut 40 to form the slit 4.
- An adhesive sheet can be used instead of the shield plate 3. Further, in the example shown in FIG. 4B, after the magnetic plate 2 and the power receiving coil 1 are wrapped by the laminate sheet 6, the magnetic plate 2 is split along the incision 40.
- the configuration of the magnetic plate 2 is different from that of the first embodiment.
- the other configuration of the power reception coil block of the present embodiment is the same as that of the power reception coil block of the first embodiment, and therefore the description thereof is omitted.
- the magnetic plate 2 in the present embodiment is formed in a rectangular (square in the illustrated example) flat plate shape using a conductive magnetic material.
- a plurality of linear grooves 7 are formed on the surface (the lower surface in FIG. 5A) of the magnetic plate 2.
- the groove 7 is a space formed on the surface of the magnetic plate 2.
- the plurality of grooves 7 are formed in the magnetic plate 2 in a lattice shape. More specifically, the magnetic plate 2 has a plurality of grooves 7 parallel to one side of the surface of the magnetic plate 2 (hereinafter referred to as symbol 7A as necessary) and a plurality of grooves 7 orthogonal to the grooves 7A. (Hereinafter, represented by the code 7B as necessary) are formed.
- the grooves 7A and the grooves 7B are formed at equal intervals, respectively. Further, the distance between the groove 7A and the groove 7B is, for example, about 0.1 to 5.0 mm.
- the depth of the grooves 7 is preferably in the range of 25% to 95% of the thickness of the magnetic plate 2.
- the flow of the eddy current is restricted by the groove 7 formed in the magnetic plate 2, and therefore the eddy current hardly flows in the magnetic plate 2. Therefore, the temperature rise due to the eddy current flowing through the magnetic plate 2 can be suppressed, and the heat loss can be reduced. Further, since the eddy current loss can be reduced, the power transmission efficiency can be enhanced.
- the groove 7 is formed on the surface of the magnetic plate 2 as a space. Therefore, unlike the case where the space is the slit 4 as in the first embodiment, the magnetic plate 2 is not divided into a plurality. That is, the magnetic plate 2 can maintain its own shape without using other members. Therefore, the handling of the magnetic plate 2 becomes easy. Further, unlike the slits 4, since the grooves 7 do not penetrate the magnetic plate 2, the back surface portion of the magnetic plate 2 in which the grooves 7 are not formed serves as the shield plate 3 for preventing the leakage flux. . In this case, the shield plate 3 may not be provided.
- the groove 7 is formed only on the surface of the magnetic plate 2.
- the groove 7 can be formed on the back surface of the magnetic plate 2 as well. That is, spaces may be formed on both the front surface and the back surface of the magnetic plate 2.
- a plurality of grooves 7 are formed in a lattice. More specifically, the back surface of the magnetic plate 2 is perpendicular to the grooves 7C (hereinafter referred to as symbol 7C if necessary) parallel to the grooves 7A formed on the surface of the magnetic plate 2.
- the grooves 7 that is, parallel to the grooves 7B (hereinafter referred to as symbol 7D as necessary) are formed.
- the grooves 7C are formed so as not to overlap in the thickness direction of the grooves 7A and the magnetic plate 2 (vertical direction in FIG. 6B).
- the groove 7D is formed so as not to overlap with the groove 7B in the thickness direction of the magnetic plate 2.
- the grooves 7 are provided on both surfaces of the magnetic plate 2, and the groove 7 on the surface side and the position of the groove 7 on the back side are offset.
- the grooves 7C and the grooves 7D are formed at equal intervals.
- the distance between the groove 7C and the groove 7D is, for example, about 0.1 to 5.0 mm.
- the depth of the grooves 7C and 7D is preferably in the range of 25% to 95% of the thickness of the magnetic plate 2.
- a columnar protrusion 2 a penetrating the center of the power reception coil 1 is formed.
- a peripheral wall portion 2 b surrounding the power reception coil 1 is formed at an edge portion of the surface of the magnetic plate 2.
- the inner peripheral shape of the peripheral wall portion 2b is circular. Further, the center of the peripheral wall 2b and the center of the protrusion 2a are aligned with each other.
- the power reception coil 1 is accommodated in an annular space 2 c between the protrusion 2 a and the peripheral wall 2 b. That is, the magnetic plate 2 is positioned not only on one surface side of the power reception coil 1 but also at the center or periphery of the power reception coil 1.
- the plurality of slits 4A and 4B are formed in the magnetic plate 2 in a lattice shape.
- the magnetic flux passes through the protrusion 2 a and the peripheral wall 2 b during power transmission, so that the magnetic plate 2 can effectively capture the magnetic flux. Therefore, the power transfer efficiency is further improved.
- the shape of the projection part 2a and the surrounding wall part 2b is not limited to said example.
- the configuration of the magnetic plate 2 is different from that of the first embodiment.
- the other configuration of the power reception coil block of the present embodiment is the same as that of the power reception coil block of the first embodiment, and therefore the description thereof is omitted.
- a schematic explanatory view of the magnetic plate 2 is shown.
- the slit 4 is formed on the surface of the magnetic plate 2 in the present embodiment, as in the first embodiment.
- the slits 4 in the present embodiment are formed in the magnetic plate 2 in a form of one-stroke writing. More specifically, as shown in the circles in FIG. 8A, the slits 4 are formed by alternately arranging rectangular wave-like portions 4a parallel to one another and linear portions 4b parallel to one another. It is formed. Here, one end of the rectangular wave-like portion 4a is connected to the other end of the next rectangular wave-like portion 4a by the linear portion 4b.
- the magnetic plate 2 is not divided into a plurality of pieces by the slits 4 while the slits 4 penetrating the magnetic plate 2 are provided. Therefore, the handling of the magnetic plate 2 becomes easy.
- the magnetic plate 2 shown in FIGS. 8 (b) to 8 (d) can be used for the power reception coil block of this embodiment.
- FIGS. 8B and 8D a schematic explanatory view of the magnetic plate 2 is shown.
- a plurality of cross-shaped slits 4 are formed in the magnetic plate 2 in FIG. 8 (b). Only a plurality of slits 4A described in the first embodiment are formed in the magnetic plate 2 shown in FIG. 8C. In the magnetic plate 2 shown in FIG. 8D, in addition to the slits 4A, in order to distinguish from the slits 4A in the slit 4 (in FIG. 8D, which intersects only one slit 4A). A plurality of symbols 4C) are formed.
- the magnetic plate 2 is not divided into a plurality of parts by the slits 4. Thus, the handling of the magnetic plate 2 is facilitated.
- Embodiment 5 By the way, as described above, when the feeding coil is a flat coil, the magnetic flux M passing through the magnetic plate 2 at the time of power transmission spreads radially from the position corresponding to the center of the receiving coil 1 as shown in FIG. ing. Here, the eddy current I flows in the direction orthogonal to each magnetic flux M.
- a plurality of linear slits 4 (hereinafter, denoted by reference numeral 4D as necessary) are radially formed on the magnetic plate 2 in the present embodiment.
- the configuration of the magnetic plate 2 is different from that of the first embodiment.
- the other configuration of the power reception coil block of the present embodiment is the same as that of the power reception coil block of the first embodiment, and therefore the description thereof will be omitted.
- FIG. 10A a schematic explanatory view of the magnetic plate 2 is shown.
- the plurality of slits 4D radially extend from a position corresponding to the center of the power reception coil 1 in the magnetic plate 2 (the center of the magnetic plate 2 in the illustrated example). That is, each slit 4D is formed along the radial direction of the power reception coil 1. Then, as described above, the magnetic flux M radially spread from the position corresponding to the center of the power reception coil 1. Therefore, the slit 4D is formed in a shape (parallel to the magnetic flux M) along the direction of the magnetic flux passing through the magnetic plate 2 at the time of power transmission. In the example shown in FIG. 10A, the slits 4D are not provided up to the central portion and the edge portion of the magnetic plate 2 so that the magnetic plate 2 is not divided into a plurality.
- the slits 4D which are parallel to the magnetic flux M in this way do not inhibit the flow of the magnetic flux M. Moreover, since the slit 4D is orthogonal to the direction in which the eddy current I flows, the eddy current I can be effectively suppressed.
- the eddy current I can be effectively suppressed while suppressing the slits 4D from blocking the flow of the magnetic flux M.
- interval of slit 4D is wide.
- the density of the magnetic flux M is higher toward the center of the magnetic plate 2 and lower as it goes away from the center. Therefore, in the slit 4D, the density of the slit 4D in the portion where the density of the magnetic flux M passing through the magnetic plate 2 is relatively high during power transmission is higher than the portion where the density of the magnetic flux M passing through the magnetic plate 2 is relatively low.
- a plurality of magnetic plates 2 are formed on the magnetic plate 2 (the arrangement density of the slits 4D is also increased in the portion where the density of the magnetic flux M is high). In this way, the eddy current I can be efficiently suppressed.
- the arrangement density of the slits 4D does not necessarily have to correspond to the density of the magnetic flux M.
- the slits 4 represented by reference numeral 4E to distinguish from the slits 4D in the illustrated example
- the slits 4 are further formed radially on the outer peripheral portion of the magnetic plate 2. You may do it.
- FIG. 10B a schematic explanatory view of the magnetic plate 2 is shown.
- FIG. 10C shows another example of the magnetic plate 2 in the present embodiment.
- the slit 4D in FIG. 10 (c) is composed of a center side portion 4c and an outer peripheral side portion 4d. That is, in the example shown in FIG. 10C, a plurality of slits 4 are provided on the same radial direction between the center and the edge of the magnetic plate 2.
- a plurality of types of slits 4D having different lengths of the portion 4c are formed. This prevents the magnetic plate 2 from continuing in the circumferential direction of the power reception coil 1. In this way, the eddy current I can be effectively prevented from flowing through the magnetic plate 2. Further, according to the example shown in FIG. 10C, the rigidity of the magnetic plate 2 can be secured.
- the magnetic plate 2 shown in FIG. 10C has a large effect of reducing the loss due to the eddy current, and is extremely effective in improving the power transmission efficiency.
- FIG. 10 (c) a schematic explanatory view of the magnetic plate 2 is shown.
- Embodiment 6 The configuration of the magnetic plate 2 in the power reception coil block of the present embodiment is different from that of the first embodiment.
- the other configuration of the power reception coil block of the present embodiment is the same as that of the power reception coil block of the first embodiment, and therefore the description thereof is omitted.
- the power reception coil block of the present embodiment includes two magnetic plates 2.
- two magnetic plates 2 described in the first embodiment are stacked.
- the magnetic flux may leak through the slits 4 of each magnetic plate 2 to the side of the magnetic plate 2 opposite to the power receiving coil 1 side. Therefore, in this case, as shown in FIG. 12, it is preferable to provide the shield plate 3 on the opposite side of the magnetic plate 2 to the power receiving coil 1 side.
- the two magnetic plates 2 are stacked so that the slits 4 of one magnetic plate 2 and the slits 4 of the other magnetic plate 2 are orthogonal to each other.
- the magnetic flux M does not leak except for a portion where the slit 4 of one magnetic plate 2 and the slit 4 of the other magnetic plate 2 overlap. Therefore, the leakage of the magnetic flux can be reduced compared to the example shown in FIG.
- the two magnetic plates 2 are stacked so that the slits 4 of one magnetic plate 2 and the slits 4 of the other magnetic plate 2 are parallel to each other.
- the slits 4 of one magnetic plate 2 and the slits 4 of the other magnetic plate 2 do not overlap in the thickness direction of the magnetic plate 2.
- the magnetic flux M does not leak. Therefore, the leakage of the magnetic flux can be reduced compared to the example shown in FIG.
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Abstract
Description
本実施形態の受電用コイルブロックは、図示しない給電用コイルを備える給電用コイルブロックとともに、電磁誘導を利用して非接触で電力を伝送する非接触電力伝送機器を構成する。非接触電力伝送機器では、一般に、給電用コイルブロックと、受電用コイルブロックとが分離されている。そして、電力を伝送するにあたっては、受電用コイルブロックを給電用コイルブロックに対する規定位置に配置する。当該規定位置は、受電用コイルと送電用コイルとが磁気的に結合されることで、受電用コイルを二次側コイル、送電用コイルを一次側コイルとする変圧器が形成される位置である。非接触電力伝送機器では、当該変圧器を利用して、送電用コイルブロックから受電用コイルブロックに非接触で電力を伝送する。
本実施形態の受電用コイルブロックでは、図5(a),(b)に示すように、磁性板2の構成が実施形態1と異なっている。なお、本実施形態の受電用コイルブロックのその他の構成は、実施形態1の受電用コイルブロックと同様であるから説明を省略する。
本実施形態の受電用コイルブロックでは、図7に示すように、磁性板2の構成が実施形態1と異なっている。なお、本実施形態の受電用コイルブロックのその他の構成は、実施形態1の受電用コイルブロックと同様であるから説明を省略する。
本実施形態の受電用コイルブロックでは、図8(a)に示すように、磁性板2の構成が実施形態1と異なっている。なお、本実施形態の受電用コイルブロックのその他の構成は、実施形態1の受電用コイルブロックと同様であるから説明を省略する。また、図8(a)における丸の中には、磁性板2の概略説明図を示している。
ところで、上述したように給電用コイルが平面コイルである場合、電力伝送時に磁性板2を通過する磁束Mは、図9に示すように、受電用コイル1の中心に該当する位置から放射状に広がっている。ここで、渦電流Iは、各磁束Mと直交する方向に流れる。
本実施形態の受電用コイルブロックでは、磁性板2の構成が実施形態1と異なっている。なお、本実施形態の受電用コイルブロックのその他の構成は、実施形態1の受電用コイルブロックと同様であるから説明を省略する。
Claims (5)
- 電磁誘導を利用して非接触で電力を伝送する非接触電力伝送機器に用いられる受電用コイルブロックであって、
電力伝送時に給電用コイルに磁気結合される受電用コイルと、
導電性を有する磁性材料により形成された磁性板とを備え、
前記受電用コイルは平面コイルであり、
前記磁性板は表面を前記受電用コイルに向けた状態で当該受電用コイルと平行に配置され、
少なくとも前記磁性板の前記表面に空所が形成されていることを特徴とする受電用コイルブロック。 - 前記空所は、スリットであることを特徴とする請求項1記載の受電用コイルブロック。
- 前記空所は、溝であることを特徴とする請求項1記載の受電用コイルブロック。
- 前記空所は、電力伝送時に前記磁性板を通過する磁束の方向に沿う形に形成されていることを特徴とする請求項1記載の受電用コイルブロック。
- 前記空所は、電力伝送時に前記磁性板を通過する磁束の密度が比較的高い部分における前記空所の密度が前記磁性板を通過する磁束の密度が比較的低い部分よりも高くなるように、前記磁性板に複数形成されていることを特徴とする請求項1記載の受電用コイルブロック。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US12/735,801 US20100320843A1 (en) | 2008-02-20 | 2009-02-04 | Power reception coil unit |
EP09712198.2A EP2246864A4 (en) | 2008-02-20 | 2009-02-04 | POWER-RECEPTACTION COIL BLOCK |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008039209A JP2009200174A (ja) | 2008-02-20 | 2008-02-20 | 非接触電力伝送機器 |
JP2008-039209 | 2008-02-20 |
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Publication Number | Publication Date |
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WO2009104474A1 true WO2009104474A1 (ja) | 2009-08-27 |
Family
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PCT/JP2009/051875 WO2009104474A1 (ja) | 2008-02-20 | 2009-02-04 | 受電用コイルブロック |
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US (1) | US20100320843A1 (ja) |
EP (1) | EP2246864A4 (ja) |
JP (1) | JP2009200174A (ja) |
KR (1) | KR20100121644A (ja) |
TW (1) | TW200937466A (ja) |
WO (1) | WO2009104474A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013133254A1 (ja) * | 2012-03-08 | 2013-09-12 | 日産自動車株式会社 | 非接触給電装置 |
KR20150013781A (ko) * | 2012-05-14 | 2015-02-05 | 봄바디어 트랜스포테이션 게엠베하 | 자화 가능한 재료를 포함하는, 차량에 에너지를 제공하기 위한 장치 |
JP2015128142A (ja) * | 2013-11-28 | 2015-07-09 | Tdk株式会社 | コイルユニット |
JP2018148146A (ja) * | 2017-03-09 | 2018-09-20 | Tdk株式会社 | コイルユニット、ワイヤレス送電装置、ワイヤレス受電装置、及びワイヤレス電力伝送システム |
JP2018166203A (ja) * | 2017-03-28 | 2018-10-25 | Tdk株式会社 | 磁性コア用軟磁性薄帯、磁性コア、コイルユニット及びワイヤレス電力伝送ユニット |
Families Citing this family (76)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8169185B2 (en) | 2006-01-31 | 2012-05-01 | Mojo Mobility, Inc. | System and method for inductive charging of portable devices |
US11201500B2 (en) | 2006-01-31 | 2021-12-14 | Mojo Mobility, Inc. | Efficiencies and flexibilities in inductive (wireless) charging |
US7952322B2 (en) | 2006-01-31 | 2011-05-31 | Mojo Mobility, Inc. | Inductive power source and charging system |
US11329511B2 (en) | 2006-06-01 | 2022-05-10 | Mojo Mobility Inc. | Power source, charging system, and inductive receiver for mobile devices |
US7948208B2 (en) | 2006-06-01 | 2011-05-24 | Mojo Mobility, Inc. | Power source, charging system, and inductive receiver for mobile devices |
US20110050164A1 (en) | 2008-05-07 | 2011-03-03 | Afshin Partovi | System and methods for inductive charging, and improvements and uses thereof |
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EP2580844A4 (en) | 2010-06-11 | 2016-05-25 | Mojo Mobility Inc | WIRELESS POWER TRANSFER SYSTEM SUPPORTING INTEROPERABILITY AND MULTIPOLAR MAGNETS FOR USE WITH THIS SYSTEM |
CN109585147B (zh) * | 2010-08-06 | 2023-10-31 | 奥克兰联合服务有限公司 | 感应功率接收器设备 |
US9178369B2 (en) | 2011-01-18 | 2015-11-03 | Mojo Mobility, Inc. | Systems and methods for providing positioning freedom, and support of different voltages, protocols, and power levels in a wireless power system |
US10115520B2 (en) | 2011-01-18 | 2018-10-30 | Mojo Mobility, Inc. | Systems and method for wireless power transfer |
US9496732B2 (en) | 2011-01-18 | 2016-11-15 | Mojo Mobility, Inc. | Systems and methods for wireless power transfer |
US11342777B2 (en) | 2011-01-18 | 2022-05-24 | Mojo Mobility, Inc. | Powering and/or charging with more than one protocol |
US20130293191A1 (en) | 2011-01-26 | 2013-11-07 | Panasonic Corporation | Non-contact charging module and non-contact charging instrument |
JP5031911B2 (ja) * | 2011-02-01 | 2012-09-26 | パナソニック株式会社 | 非接触充電モジュール及び非接触充電機器 |
JP4835797B1 (ja) * | 2011-02-01 | 2011-12-14 | パナソニック株式会社 | 非接触充電モジュール及び非接触充電機器 |
US8729855B2 (en) | 2011-02-01 | 2014-05-20 | Panasonic Corporation | Non-contact charging module and non-contact charger |
JP5709042B2 (ja) * | 2011-02-04 | 2015-04-30 | 日立金属株式会社 | コイル部品並びにそれを用いた受電装置及び給電装置 |
CN203706837U (zh) | 2011-03-09 | 2014-07-09 | 松下电器产业株式会社 | 非接触充电模块、非接触充电器以及电子设备 |
JP4900524B1 (ja) * | 2011-03-09 | 2012-03-21 | パナソニック株式会社 | 非接触充電モジュール及び非接触充電機器 |
JP4962634B1 (ja) * | 2011-03-09 | 2012-06-27 | パナソニック株式会社 | 非接触充電モジュールの製造方法 |
JP4835800B1 (ja) * | 2011-03-09 | 2011-12-14 | パナソニック株式会社 | 非接触充電モジュール及び非接触充電機器 |
CN103493158B (zh) * | 2011-04-25 | 2016-07-06 | 株式会社东芝 | 磁性片和使用其的非接触受电装置、电子设备及非接触充电装置 |
US9531195B2 (en) * | 2011-04-29 | 2016-12-27 | Cyberonics, Inc. | Inductively rechargeable implantable device with reduced eddy currents |
EP2524834A1 (de) | 2011-05-18 | 2012-11-21 | Brusa Elektronik AG | Vorrichtung zum induktiven Laden zumindest eines elektrischen Energiespeichers eines Elektrofahrzeuges |
JP5342073B2 (ja) | 2011-06-14 | 2013-11-13 | パナソニック株式会社 | 通信装置 |
WO2013015540A1 (en) * | 2011-07-26 | 2013-01-31 | Lg Innotek Co., Ltd. | Wireless power transmitter and wireless power receiver |
JP4983999B1 (ja) * | 2011-09-09 | 2012-07-25 | パナソニック株式会社 | 非接触充電モジュール及びこれを用いた非接触充電機器 |
DE102011083003B4 (de) * | 2011-09-20 | 2017-02-16 | Robert Bosch Gmbh | Handwerkzeugvorrichtung mit zumindest einer Ladespule |
JP5923916B2 (ja) * | 2011-10-03 | 2016-05-25 | 日産自動車株式会社 | 非接触給電装置 |
DE102011116246B4 (de) * | 2011-10-18 | 2014-07-10 | Audi Ag | Sekundartransformatoreinheit zur Anbringung an einem Fahrzeug mit Elektroantrieb und Fahrzeug mit Elektroantrieb |
JP2015008546A (ja) * | 2011-10-28 | 2015-01-15 | パナソニック株式会社 | 非接触電力伝送装置 |
JP2015008548A (ja) * | 2011-10-28 | 2015-01-15 | パナソニック株式会社 | 非接触電力伝送装置 |
US10204734B2 (en) | 2011-11-02 | 2019-02-12 | Panasonic Corporation | Electronic device including non-contact charging module and near field communication antenna |
KR101558311B1 (ko) | 2011-11-02 | 2015-10-07 | 파나소닉 주식회사 | 비접촉 무선 통신용 코일, 전송 코일 및 휴대 무선 단말 |
JP6151185B2 (ja) * | 2011-11-08 | 2017-06-21 | 株式会社東芝 | 非接触受電装置用磁性シートとそれを用いた非接触受電装置、電子機器、並びに非接触充電装置 |
US9861017B2 (en) * | 2012-01-16 | 2018-01-02 | Nokia Technologies Oy | Method and shielding units for inductive energy coils |
JP2013169122A (ja) | 2012-02-17 | 2013-08-29 | Panasonic Corp | 非接触充電モジュール及びそれを備えた携帯端末 |
JP6025015B2 (ja) * | 2012-02-27 | 2016-11-16 | 日立金属株式会社 | 磁性シート、伝送コイル部品及び非接触充電装置 |
US20130271069A1 (en) | 2012-03-21 | 2013-10-17 | Mojo Mobility, Inc. | Systems and methods for wireless power transfer |
US9722447B2 (en) | 2012-03-21 | 2017-08-01 | Mojo Mobility, Inc. | System and method for charging or powering devices, such as robots, electric vehicles, or other mobile devices or equipment |
JP5045858B1 (ja) * | 2012-04-12 | 2012-10-10 | パナソニック株式会社 | 非接触充電モジュールの製造方法及び非接触充電モジュール |
JP5915857B2 (ja) * | 2012-04-25 | 2016-05-11 | 株式会社エクォス・リサーチ | アンテナ |
JP6008237B2 (ja) | 2012-06-28 | 2016-10-19 | パナソニックIpマネジメント株式会社 | 携帯端末 |
JP6112383B2 (ja) | 2012-06-28 | 2017-04-12 | パナソニックIpマネジメント株式会社 | 携帯端末 |
US10251987B2 (en) * | 2012-07-27 | 2019-04-09 | Tc1 Llc | Resonant power transmission coils and systems |
US9325183B2 (en) * | 2012-12-21 | 2016-04-26 | Nokia Technologies Oy | Reducing inductive heating |
KR102041988B1 (ko) * | 2013-02-22 | 2019-11-07 | 삼성전자주식회사 | 무선 전력 전송 장치 |
JP6071654B2 (ja) | 2013-03-06 | 2017-02-01 | 株式会社東芝 | コイル、受電装置、及び送電装置 |
US9837846B2 (en) | 2013-04-12 | 2017-12-05 | Mojo Mobility, Inc. | System and method for powering or charging receivers or devices having small surface areas or volumes |
WO2015020141A1 (ja) | 2013-08-08 | 2015-02-12 | 株式会社Ihi | 非接触給電装置の製造方法及び共振器 |
KR102017669B1 (ko) * | 2013-08-29 | 2019-10-21 | 주식회사 위츠 | 무선 전력 전송용 코일형 유닛, 무선 전력 전송장치, 전자기기 및 무선전력 전송용 코일형 유닛의 제조방법 |
JP2014027880A (ja) * | 2013-11-08 | 2014-02-06 | Panasonic Corp | 非接触充電モジュール及び非接触充電機器 |
KR101762778B1 (ko) | 2014-03-04 | 2017-07-28 | 엘지이노텍 주식회사 | 무선 충전 및 통신 기판 그리고 무선 충전 및 통신 장치 |
WO2015161035A1 (en) * | 2014-04-17 | 2015-10-22 | Witricity Corporation | Wireless power transfer systems with shield openings |
WO2015199151A1 (ja) | 2014-06-25 | 2015-12-30 | 株式会社Ihi | コイル装置およびインダクタンス変更機構 |
JP6439442B2 (ja) * | 2014-12-26 | 2018-12-19 | 株式会社Ihi | コイル装置 |
KR102152653B1 (ko) | 2014-08-18 | 2020-09-08 | 엘지이노텍 주식회사 | 무선 전력 수신 장치 |
CN104167830B (zh) * | 2014-08-26 | 2016-10-19 | 哈尔滨工业大学 | 空载时屏蔽电磁辐射的无线能量传输装置 |
KR20160057278A (ko) * | 2014-11-13 | 2016-05-23 | 엘지전자 주식회사 | 무선 전력 전송 장치, 무선 전력 수신 장치 및 무선 충전 시스템 |
JP2018533198A (ja) * | 2015-07-20 | 2018-11-08 | アモセンス・カンパニー・リミテッドAmosense Co., Ltd. | 磁場遮蔽ユニット |
US20170077733A1 (en) * | 2015-09-10 | 2017-03-16 | Qualcomm Incorporated | Wireless power transmitting unit using metal plates |
CN107527704A (zh) * | 2016-06-20 | 2017-12-29 | 深圳市安普盛科技有限公司 | 二维方向导磁的导磁体结构 |
JP2018056305A (ja) * | 2016-09-28 | 2018-04-05 | 株式会社デンソー | コイル素子およびその製造方法 |
KR102031615B1 (ko) * | 2017-03-28 | 2019-10-15 | 티디케이가부시기가이샤 | 자성 코어용 연자성 박대, 자성 코어, 코일 유닛 및 와이어리스 전력 전송 유닛 |
WO2018192670A1 (en) * | 2017-04-21 | 2018-10-25 | Vacon Oy | Resonance damping element and power converter with the same |
US10720277B2 (en) | 2017-09-08 | 2020-07-21 | Witricity Corporation | Ferrite arrangement in a wireless power-transfer structure to mitigate dimensional tolerance effects on performance |
US11004586B2 (en) | 2017-09-15 | 2021-05-11 | Siemens Gamesa Renewable Energy A/S | Permanent magnet for a permanent magnet machine |
EP3553547A1 (en) | 2018-04-12 | 2019-10-16 | Koninklijke Philips N.V. | Shim irons for a magnetic resonance apparatus |
US11444485B2 (en) | 2019-02-05 | 2022-09-13 | Mojo Mobility, Inc. | Inductive charging system with charging electronics physically separated from charging coil |
WO2020256409A1 (ko) * | 2019-06-18 | 2020-12-24 | 주식회사 아모센스 | 자기장 차폐시트 및 이의 제조방법 |
DE102019212151A1 (de) | 2019-08-13 | 2021-02-18 | Mahle International Gmbh | Energieübertrager für eine berührungslose Energieübertragung und Traktionsakkumulator-Ladesystem |
KR20210096451A (ko) * | 2020-01-28 | 2021-08-05 | 에스케이씨 주식회사 | 무선충전 패드, 무선충전 장치, 및 이를 포함하는 전기 자동차 |
WO2021171153A1 (en) * | 2020-02-28 | 2021-09-02 | 3M Innovative Properties Company | Magnetic film assembly for reduced magnetic field transmission |
FR3119718B1 (fr) * | 2021-06-28 | 2023-02-10 | Renault Sas | procédé de fabrication d’un élément à pôles magnétiques |
CN115876888B (zh) * | 2023-03-02 | 2023-10-24 | 华中科技大学 | 一种适用于脉冲强磁场下的超声回波测量装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04122007A (ja) * | 1990-09-12 | 1992-04-22 | Unitika Ltd | 非接触型トランス |
JPH05226169A (ja) * | 1992-02-12 | 1993-09-03 | Nippondenso Co Ltd | 内燃機関用のイグニションコイル |
JP2006311712A (ja) | 2005-04-28 | 2006-11-09 | Panasonic Mobile Communications Co Ltd | 非接触充電インタフェースを提供する電池パック蓋及び該電池パック蓋を備えた携帯電話機 |
WO2007080820A1 (ja) * | 2006-01-12 | 2007-07-19 | Kabushiki Kaisha Toshiba | 受電装置とそれを用いた電子機器および非接触充電装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5656983A (en) * | 1992-11-11 | 1997-08-12 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Inductive coupler for transferring electrical power |
JP3083006B2 (ja) * | 1992-11-19 | 2000-09-04 | 株式会社豊田自動織機製作所 | 電磁給電装置 |
JP2003045731A (ja) * | 2001-07-30 | 2003-02-14 | Nec Tokin Corp | 非接触電力伝送装置 |
US6768409B2 (en) * | 2001-08-29 | 2004-07-27 | Matsushita Electric Industrial Co., Ltd. | Magnetic device, method for manufacturing the same, and power supply module equipped with the same |
JP2003203813A (ja) * | 2001-08-29 | 2003-07-18 | Matsushita Electric Ind Co Ltd | 磁性素子およびその製造方法、並びにそれを備えた電源モジュール |
JP2005080023A (ja) * | 2003-09-01 | 2005-03-24 | Sony Corp | 磁芯部材、アンテナモジュール及びこれを備えた携帯型通信端末 |
JP4400509B2 (ja) * | 2005-05-16 | 2010-01-20 | パナソニック株式会社 | セラミックシート、アンテナ装置、無線通信媒体処理装置、及びセラミックシートの製造方法 |
WO2006011656A1 (en) * | 2004-07-28 | 2006-02-02 | Matsushita Electric Industrial Co., Ltd. | Antenna apparatus |
JP2006050265A (ja) * | 2004-08-04 | 2006-02-16 | Sony Corp | アンテナモジュール用磁芯部材、アンテナモジュールおよびこれを備えた携帯情報端末 |
JP2007110290A (ja) * | 2005-10-12 | 2007-04-26 | Tamura Seisakusho Co Ltd | ループアンテナ |
JP2007123575A (ja) * | 2005-10-28 | 2007-05-17 | Matsushita Electric Ind Co Ltd | 磁性シートおよびこれを用いたアンテナ装置、並びに磁性シートの製造方法 |
KR101052981B1 (ko) * | 2006-03-24 | 2011-07-29 | 도시바 마테리알 가부시키가이샤 | 비접촉형의 수전 장치와 그것을 이용한 전자 기기 및 비접촉 충전 장치 |
JP2008205557A (ja) * | 2007-02-16 | 2008-09-04 | Matsushita Electric Ind Co Ltd | アンテナ装置 |
-
2008
- 2008-02-20 JP JP2008039209A patent/JP2009200174A/ja active Pending
-
2009
- 2009-02-04 WO PCT/JP2009/051875 patent/WO2009104474A1/ja active Application Filing
- 2009-02-04 EP EP09712198.2A patent/EP2246864A4/en not_active Withdrawn
- 2009-02-04 US US12/735,801 patent/US20100320843A1/en not_active Abandoned
- 2009-02-04 KR KR1020107020030A patent/KR20100121644A/ko not_active Application Discontinuation
- 2009-02-18 TW TW098105102A patent/TW200937466A/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04122007A (ja) * | 1990-09-12 | 1992-04-22 | Unitika Ltd | 非接触型トランス |
JPH05226169A (ja) * | 1992-02-12 | 1993-09-03 | Nippondenso Co Ltd | 内燃機関用のイグニションコイル |
JP2006311712A (ja) | 2005-04-28 | 2006-11-09 | Panasonic Mobile Communications Co Ltd | 非接触充電インタフェースを提供する電池パック蓋及び該電池パック蓋を備えた携帯電話機 |
WO2007080820A1 (ja) * | 2006-01-12 | 2007-07-19 | Kabushiki Kaisha Toshiba | 受電装置とそれを用いた電子機器および非接触充電装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2246864A4 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013133254A1 (ja) * | 2012-03-08 | 2013-09-12 | 日産自動車株式会社 | 非接触給電装置 |
KR20150013781A (ko) * | 2012-05-14 | 2015-02-05 | 봄바디어 트랜스포테이션 게엠베하 | 자화 가능한 재료를 포함하는, 차량에 에너지를 제공하기 위한 장치 |
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JP2015128142A (ja) * | 2013-11-28 | 2015-07-09 | Tdk株式会社 | コイルユニット |
JP2018148146A (ja) * | 2017-03-09 | 2018-09-20 | Tdk株式会社 | コイルユニット、ワイヤレス送電装置、ワイヤレス受電装置、及びワイヤレス電力伝送システム |
CN108574327A (zh) * | 2017-03-09 | 2018-09-25 | Tdk株式会社 | 线圈单元、无线供电装置、无线受电装置及无线电力传输系统 |
JP2018166203A (ja) * | 2017-03-28 | 2018-10-25 | Tdk株式会社 | 磁性コア用軟磁性薄帯、磁性コア、コイルユニット及びワイヤレス電力伝送ユニット |
JP7102745B2 (ja) | 2017-03-28 | 2022-07-20 | Tdk株式会社 | 磁性コア用軟磁性薄帯、磁性コア、コイルユニット及びワイヤレス電力伝送ユニット |
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US20100320843A1 (en) | 2010-12-23 |
TW200937466A (en) | 2009-09-01 |
JP2009200174A (ja) | 2009-09-03 |
EP2246864A4 (en) | 2013-05-01 |
EP2246864A1 (en) | 2010-11-03 |
KR20100121644A (ko) | 2010-11-18 |
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