WO2022219882A1 - コイル装置 - Google Patents
コイル装置 Download PDFInfo
- Publication number
- WO2022219882A1 WO2022219882A1 PCT/JP2022/003832 JP2022003832W WO2022219882A1 WO 2022219882 A1 WO2022219882 A1 WO 2022219882A1 JP 2022003832 W JP2022003832 W JP 2022003832W WO 2022219882 A1 WO2022219882 A1 WO 2022219882A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- main
- sub
- coil
- ferrite
- base
- Prior art date
Links
- 238000009434 installation Methods 0.000 claims abstract description 9
- 229910000859 α-Fe Inorganic materials 0.000 claims description 123
- 230000005540 biological transmission Effects 0.000 description 63
- 238000012856 packing Methods 0.000 description 22
- 230000005672 electromagnetic field Effects 0.000 description 20
- 230000003014 reinforcing effect Effects 0.000 description 11
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012811 non-conductive material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009774 resonance method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M7/00—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
- B60M7/003—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway for vehicles using stored power (e.g. charging stations)
-
- 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
- H01F27/02—Casings
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- 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
- H01F27/36—Electric or magnetic shields or screens
- H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
-
- 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
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- 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
- H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
-
- 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
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present disclosure relates to a coil device.
- a contactless power supply device includes a coil device as a component for transmitting or receiving power.
- alternating current power is provided to a coil in a device on the transmitting side, an electromagnetic field is generated around the coil as a result.
- this electromagnetic field reaches the receiving device, it results in an induced current in the receiving coil.
- Patent Documents 1 and 2 disclose coil devices.
- Patent Literature 1 discloses a coil unit used in a contactless power supply device.
- the non-contact power feeding device of Patent Document 1 uses an induced electromotive force generated by mutual induction between coils arranged to face each other.
- Patent Literature 1 discloses a pair of coil units in which power is wirelessly supplied from the power transmission side to the power reception side.
- Coil devices used for contactless power transmission and reception are installed in various places.
- the coil device may be installed on the ground surface.
- the coil device may be trampled by the vehicle or affected by the weather. Even under such conditions, the coil device is required to remain usable for a long period of time. Therefore, in order to keep the coil device usable for a long period of time, maintenance work such as replacement of parts constituting the coil device is required.
- an object of the present disclosure is to provide a coil device that is easy to maintain.
- a coil device that is one aspect of the present disclosure includes a main unit that is housed in a main housing in which a coil that transmits or receives power in a contactless manner is fixed to an installation target.
- a sub-housing that is detachably attached to a main housing accommodates an electric function part that provides a main unit with an electric function performed by at least one of an electric component and an electronic component. with subunits.
- the main unit has an accommodating section that detachably accommodates the subunit.
- a coil device with easy maintenance is provided.
- FIG. 1 is a side view showing a contactless power supply system including a coil device according to one embodiment.
- FIG. 2 is an exploded perspective view of a coil device according to one embodiment.
- FIG. 3 is an exploded perspective view of a subunit according to one embodiment.
- FIG. 4 is a cross-sectional view of a coil device according to one embodiment.
- FIG. 5(a) is a sectional view of the coil device with the subunit removed from the main unit.
- FIG. 5(b) is a sectional view of the coil device in a state where the subunit is attached to the main unit.
- FIG. 6 is a cross-sectional view showing a magnetic field forbidden region in the coil device according to one embodiment.
- FIG. 1 is a side view showing a contactless power supply system including a coil device according to one embodiment.
- FIG. 2 is an exploded perspective view of a coil device according to one embodiment.
- FIG. 3 is an exploded perspective view of a subunit according to one embodiment.
- FIG. 7 is a schematic cross-sectional view showing main ferrites and sub-ferrites according to one embodiment.
- FIG. 8 is a schematic cross-sectional view showing main ferrites and sub-ferrites according to one embodiment.
- FIG. 9 is a perspective view of a main unit according to one embodiment.
- FIG. 10 is a perspective view of a subunit according to one embodiment.
- 11 is a cross-sectional view showing an enlarged waterproof structure of the coil device shown in FIG. 2.
- FIG. 12 is a cross-sectional view showing an enlarged view of another waterproof structure of the coil device shown in FIG. 2.
- FIG. 13 is a cross-sectional view showing a drain structure of the coil device shown in FIG. 2.
- FIG. 14 is a cross-sectional view showing how the sub-unit is fixed to the main unit by the attachment/detachment mechanism of the coil device shown in FIG. 2.
- FIG. 15 is a cross-sectional view showing how the sub-unit is removed from the main unit by the attachment/detachment mechanism of the coil device shown in FIG. 2.
- FIG. 16 is a cross-sectional view showing another part of the attachment/detachment mechanism of the coil device shown in FIG. 2.
- FIG. FIG. 17(a) is a sectional view showing a state before the subunit is attached to the main unit.
- FIG. 17(b) is a sectional view showing a state in which the subunit is being attached to the main unit.
- FIG. 17(a) is a sectional view showing a state before the subunit is attached to the main unit.
- FIG. 17(c) is a sectional view showing a state after the subunit is attached to the main unit.
- FIG. 18(a) is a cross-sectional view showing a coil device according to a first modified example.
- FIG. 18(b) is a cross-sectional view showing a coil device according to a second modified example.
- FIG. 18(c) is a cross-sectional view showing a coil device according to a third modified example.
- a coil device that is one aspect of the present disclosure includes a main unit that is housed in a main housing in which a coil that transmits or receives power in a contactless manner is fixed to an installation target.
- a sub-housing that is detachably attached to a main housing accommodates an electric function part that provides a main unit with an electric function performed by at least one of an electric component and an electronic component. with subunits.
- the main unit has an accommodating section that detachably accommodates the subunit.
- an electric functional part including a plurality of electric parts and/or electronic parts is housed in a sub-housing.
- the sub-housing is detachably housed in the main housing housing the coil.
- the electrical function section can be removed by removing the sub-housing from the main housing. In other words, it is not necessary to open the main housing containing the coil in order to remove the electrical function. Therefore, the coil system is easy to maintain.
- a main housing of one form of the coil device may include a main base fixed to an installation target, and a main cover forming a region for housing the coil together with the main base.
- the accommodating portion may be a recess including an opening formed in the main cover. According to this configuration, the subunit can be accommodated in the region formed inside the spiral-shaped circular coil.
- a main unit of one form of the coil device may have a first magnetic member arranged between the main base and the coil.
- the first magnetic member may form a first magnetic path portion related to the coil between the coil and the main base.
- the sub-housing may include a sub-base that is attached to the main base, and a sub-cover that, together with the sub-base, forms an area for housing the electrical function section.
- the subunit may have a second magnetic member arranged between the electrical function part and the subcover.
- the second magnetic member may form a second magnetic path portion magnetically connected to the first magnetic path portion between the electric function portion and the sub cover.
- the electrical function part When viewed from a direction perpendicular to the normal direction of the main cover in a state in which the subunits of the one form of coil device are attached to the main unit, the electrical function part is arranged between the main ferrite and the main base. may be According to this arrangement, it is possible to suppress the electromagnetic field generated by the coil from reaching the electric function part.
- the coil is arranged between the subferrite and the subcover when viewed from a direction orthogonal to the normal direction of the main cover. good too. According to this arrangement, it is possible to further suppress the electromagnetic field generated by the coil from reaching the electric function part.
- the first magnetic member may include a flat plate portion facing the coil, and a connecting portion extending from an end of the flat plate portion facing the second magnetic member.
- the connecting portion may include a portion arranged between the second magnetic member and the sub-base. According to this arrangement, it is possible to suppress the electromagnetic field generated by the coil from reaching the electric function part through the gap between the first magnetic member and the second magnetic member.
- the coil device 10 is used in the contactless power supply system 1.
- the contactless power supply system 1 charges a battery mounted on a mobile object V in a contactless manner.
- the mobile object V is, for example, a vehicle such as a passenger car.
- the contactless power feeding system 1 includes a power receiving device 12 and a power transmitting device 11 .
- the coil device 10 is used for at least one of the power receiving device 12 and the power transmitting device 11 .
- the coil device 10 may be used for both the power receiving device 12 and the power transmitting device 11 .
- the coil device 10 is used in the power transmission device 11 .
- the coil device 10 used as the power transmission device 11 is fixed, for example, to an outdoor road surface G (installation target).
- the coil device 10 may be placed on the road surface G instead of being fixed to the road surface G.
- a high-frequency power source (not shown) is connected to the power transmission coil C1 of the coil device 10 .
- the coil device 10 is fixed to the chassis of the moving body V, for example.
- the power receiving coil C2 of the power receiving device 12 is connected to the battery mounted on the mobile object V via a power receiving circuit, a charging circuit, and the like.
- the power transmission device 11 faces the power reception device 12 in the height direction of the moving object V.
- the power transmission coil C1 is electromagnetically coupled with the power reception coil C2.
- Non-contact power transmission is performed from the power transmission coil C1 to the power reception coil C2 by the electromagnetic coupling between the power transmission coil C1 and the power reception coil C2.
- a so-called electromagnetic coupling circuit is formed by electromagnetically coupling the power transmitting coil C1 to the power receiving coil C2.
- the electromagnetic coupling circuit may be a circuit that transmits and receives power by an “electromagnetic induction method”.
- the electromagnetic coupling circuit may be a circuit that transmits and receives power by the “magnetic field resonance method”.
- the direction in which the power transmitting device 11 faces the power receiving device 12 is referred to as the Z direction
- one of the in-plane directions perpendicular to the Z direction is referred to as the X direction
- a direction perpendicular to the X direction is called a Y direction.
- the X direction coincides with the horizontal direction in FIG.
- the Y direction coincides with the direction perpendicular to the paper surface in FIG.
- the Z direction coincides with the vertical direction in FIG.
- the coil device 10 has a main unit 2 and a subunit 3.
- the main unit 2 has, for example, a flat box shape.
- the main unit 2 has a main base 21 , a main cover 22 , a power transmission coil C ⁇ b>1 , a main ferrite 23 (first magnetic member), a main sensor 24 and a main reinforcing plate 25 .
- the main unit 2 accommodates the power transmission coil C1 described above.
- the main unit 2 has an accommodation portion P in which the subunit 3 is accommodated.
- the housing portion P is a recess formed substantially in the center of the main unit 2 when viewed from the Z direction.
- the main base 21 is a substantially rectangular and flat member.
- the main base 21 is installed on the road surface G (see FIG. 1) as an example.
- the main base 21 may be fixed to the road surface G.
- the main base 21 may be simply placed on the road surface G without being fixed to the road surface G.
- the main base 21 is made of various materials such as resin material or metal material. Further, all or part of the main base 21 may be made of a metal material with low magnetic permeability, such as aluminum or copper. By adopting a metal material with low magnetic permeability, electromagnetic waves can be prevented from leaking to the outside of the main unit 2 .
- a concave portion 21 a is formed substantially in the center of the main base 21 .
- the main cover 22 covers the upper part of the main base 21.
- the main base 21 and the main cover 22 constitute a main housing 20H.
- the main cover 22 is attached to the main base 21 . That is, the main cover 22 covers the power transmission coil C ⁇ b>1 , the main ferrite 23 , the main sensor 24 and the main reinforcing plate 25 .
- a recess 22a is formed substantially in the center of the main cover 22 .
- the recessed portion 22 a constitutes the housing portion P of the main unit 2 .
- the main cover 22 is made of a material that does not affect electromagnetic coupling.
- Non-magnetic and non-conductive materials may be employed as materials that do not affect electromagnetic coupling.
- the non-magnetic and non-conductive material is, for example, a resin material such as fiber reinforced plastics (FRP).
- the power transmission coil C1 is configured by a conducting wire CL that is spirally wound within the same plane.
- the power transmission coil C1 is a so-called circular coil.
- the power transmission coil C1 surrounds the accommodating portion P within a plane perpendicular to the Z direction.
- the power transmission coil C1 is not limited to a circular type.
- the power transmission coil C1 may be of a solenoid type.
- the main ferrite 23 is arranged in the power transmission coil C1.
- the main ferrite 23 is arranged on the side opposite to the main cover 22 .
- the main ferrite 23 is arranged below the power transmission coil C1 and between the main base 21 and the power transmission coil C1.
- the main ferrite 23 is, for example, a plate-like member made of a magnetic material.
- the main sensor 24 is arranged above the power transmission coil C1 and between the main cover 22 and the power transmission coil C1.
- the main sensor 24 detects metallic foreign objects placed on the main cover 22 . Further, the main sensor 24 may detect the load when, for example, the tires of the moving body V run over the main cover 22 .
- the main reinforcing plate 25 is arranged above the main base 21 .
- the main reinforcing plate 25 is a rectangular and annular member.
- the main reinforcing plate 25 is arranged between the main base 21 and the main ferrite 23 .
- the main reinforcing plate 25 is made of a material with low magnetic permeability.
- a material having a low magnetic permeability is, for example, an aluminum alloy.
- the subunit 3 is housed in the housing portion P of the main unit 2.
- the subunit 3 is removable from the top of the main unit 2 .
- the sub-unit 3 includes a sub-base 31, a sub-cover 32, a sub-ferrite 33 (second magnetic member), a sub-sensor 34, a sub-reinforcing plate 35, and a control board 36 (electric function part ) and
- the sub-base 31 is a box-shaped member with an open top.
- the sub-base 31 accommodates the control board 36 , the sub-ferrite 33 , the sub-sensor 34 and the sub-reinforcing plate 35 .
- the sub-cover 32 is a rectangular member.
- the sub-cover 32 is attached to the sub-base 31 .
- the sub-base 31 and the sub-cover 32 constitute a sub-housing 30H.
- the sub-cover 32 covers the upper opening of the sub-base 31 . That is, the sub-cover 32 covers the control board 36 and the like accommodated in the sub-base 31 .
- the sub-ferrite 33 is arranged between the control board 36 and the sub-cover 32 .
- the control board 36 is arranged between the sub-base 31 and the sub-ferrite 33 .
- the sub-ferrite 33 is a rectangular member.
- the sub ferrite 33 may be made of the same material as the main ferrite 23, for example.
- Sub ferrite 33 cooperates with main ferrite 23 .
- the sub ferrite 33 constitutes a magnetic path for the electromagnetic field generated by the power transmission coil C1.
- the sub-sensor 34 is arranged between the sub-cover 32 and the sub-ferrite 33 .
- the sub-sensor 34 includes a sensor for detecting metallic foreign matter placed on the sub-cover 32 .
- the sub-reinforcing plate 35 is arranged between the control board 36 and the sub-ferrite 33 .
- the sub-reinforcing plate 35 is a rectangular member.
- the control board 36 provides the main unit 2 with various electrical functions. That is, the control board 36 performs predetermined processing. As an example, the control board 36 controls power supplied to the power transmission coil C1. The high-frequency power supply supplies AC power to the power transmission coil C1 via the control board 36 . The control board 36 converts the AC power supplied from the high-frequency power supply into AC power of the optimum frequency for power transmission and reception. The control board 36 may convert AC power into DC power as needed. The control board 36 may convert the DC power to AC power again. The control board 36 may perform voltage conversion or current conversion. The control board 36 may include the function of a high frequency power supply. In this case, there is no housing device such as a high frequency power supply between the commercial power supply and the coil device 10 having the control board 36 . Therefore, a commercial power source can be directly connected to the control board 36 . Further, the control board 36 may perform control processing for foreign matter detection by the main sensor 24 and the sub-sensor 34 .
- the control board 36 has an electric board provided with pattern wiring, and a plurality of electric components E1 and electronic components E2 attached to the electric board. Note that the components forming the control board 36 may be only the electric component E1 for power conversion. The components constituting the control board 36 may be only the electronic component E2 for the control function.
- the coil device 10 is configured symmetrically with respect to the axis AX. In the example shown in FIG. 4, only one side of the axis AX is shown.
- the main base 21, the main reinforcing plate 25, the main ferrite 23, the power transmission coil C1, the main sensor 24, and the main cover 22 are laminated in this order in the Z direction.
- the recessed portion 22a of the main cover 22 is configured as a housing portion P.
- the main cover 22 has a first wall portion 41, a contact portion 42, a second wall portion 43, and a bottom portion 44 in the recess 22a.
- the first wall portion 41 extends from the inner end portion of the main cover upper surface 22b toward the main base 21 side (downward side).
- the contact portion 42 extends toward the inside of the main base 21 from the end portion of the first wall portion 41 on the main base 21 side.
- the second wall portion 43 extends from the tip portion of the contact portion 42 toward the main base 21 side.
- the bottom portion 44 connects tip portions of the second wall portion 43 to each other.
- a bottom portion 44 of the main cover 22 is fitted into the recess 21 a of the main base 21 .
- the conductor CL forming the power transmission coil C1 extends toward the main base 21 side.
- the conducting wire CL extends in the Z direction and penetrates the main ferrite 23 and the main reinforcing plate 25 .
- the conductor CL is inserted through the interior of the main base 21 .
- the conducting wire CL is bent toward the inside of the main base 21 when viewed in the Z direction.
- Conductor CL is connected to main waterproof connector 27 .
- the main ferrite 23 has a flat plate portion 61 , a first portion 62 and a second portion 63 .
- the first portion 62 and the second portion 63 constitute a connecting portion 65 .
- the flat plate portion 61 is arranged on the main reinforcing plate 25 . Also, the flat plate portion 61 faces the power transmission coil C1.
- the first portion 62 protrudes from the inner end portion 61c of the flat plate portion 61 toward the main reinforcing plate 25 side.
- the second portion 63 protrudes inward from the tip of the first portion 62 .
- Each of the flat plate portion 61, the first portion 62, and the second portion 63 is integrally formed. Note that each of the flat plate portion 61, the first portion 62, and the second portion 63 may be formed separately.
- the first portion 62 extends along the first wall portion 41 and the second portion 63 extends along the contact portion 42 .
- the sub-base 31, control board 36, sub-reinforcing plate 35, sub-ferrite 33, sub-sensor 34, and sub-cover 32 are laminated in this order in the Z direction.
- the sub-base 31 has a first wall portion 51 , a contact portion 52 , a second wall portion 53 and a bottom portion 54 .
- the first wall portion 51 forms an opening of the sub-base 31 .
- the first wall portion 51 extends toward the main base 21 side.
- the contact portion 52 extends toward the inner side of the sub-base 31 from the end of the first wall portion 51 on the main base 21 side.
- the second wall portion 53 extends from the tip portion of the contact portion 52 toward the main base 21 side.
- the bottom portion 54 connects the distal end portions of the second wall portion 53 .
- the bottom portion 54 of the sub-base 31 contacts the bottom portion 44 of the main cover 22 .
- the control board 36 is housed inside the sub-base 31 .
- a sub waterproof connector 37 is connected to the control board 36 .
- the sub waterproof connector 37 is detachably connected to the main waterproof connector 27 .
- the control board 36 of the subunit 3 is connected to the power transmission coil C1 of the main unit 2 . More specifically, the high frequency power supply supplies AC power to the power transmission coil C1 via the main waterproof connector 27 and the sub waterproof connector 37 .
- the subunit 3 is housed in the housing portion P of the main unit 2 . More specifically, when the subunit 3 is accommodated in the main unit 2 , the first wall portion 41 of the main cover 22 extends along the first wall portion 51 of the subbase 31 .
- the contact portion 42 of the main cover 22 extends along the contact portion 52 of the sub-base 31 .
- the second wall portion 43 of the main cover 22 extends along the second wall portion 53 of the sub-base 31 .
- the bottom portion 44 of the main cover 22 extends along the bottom portion 54 of the sub-base 31 .
- the first wall portion 41 is separated from the first wall portion 51 .
- the contact portion 42 is separated from the contact portion 52 .
- the second wall portion 43 is separated from the second wall portion 53 .
- the first wall portion 41 may be in contact with the first wall portion 51 .
- the contact portion 42 may contact the contact portion 52 .
- the second wall portion 43 may be in contact with the second wall portion 53 .
- the main waterproof connector 27 is exposed from the bottom 44 of the main cover 22 .
- the sub-waterproof connector 37 is exposed from the bottom portion 54 of the sub-base 31 .
- FIG. 5B when the subunit 3 is accommodated in the main unit 2, the main waterproof connector 27 on the main unit 2 side is electrically connected to the sub waterproof connector 37 on the subunit 3 side. Connected.
- a part of the electromagnetic field generated by the power transmission coil C1 may enter toward the road surface G from the part where the main ferrite 23 is separated from the sub ferrite 33. In this case, the magnitude of the electromagnetic field directed from the power transmission device 11 to the power reception device 12 is reduced. As a result, the efficiency of power transmission from the power transmitting coil C1 to the power receiving coil C2 may decrease.
- the coil device 10 has a configuration that does not generate an electromagnetic field in the magnetic field prohibited area DA.
- the magnetic field exclusion area DA is an area closer to the road surface G than the main reinforcing plate 25 of the main unit 2 and the control board 36 of the subunit 3 in the Z direction.
- FIG. 7 shows only the main ferrite 23, the sub-ferrite 33, and the power transmission coil C1.
- illustration of other parts constituting the coil device 10 is omitted.
- 7 shows only the flat plate portion 61 of the main ferrite 23.
- FIG. 7 omits illustration of the first portion 62 and the second portion 63 of the main ferrite 23 .
- the main ferrite 23 forms a magnetic path B ⁇ b>1 (first magnetic path portion) between the power transmission coil C ⁇ b>1 and the main base 21 .
- the main ferrite 23 has a main ferrite main surface 23a facing the power transmission coil C1 side, and a main ferrite back surface 23b opposite to the main ferrite main surface 23a.
- the sub-ferrite 33 forms a magnetic path B2 (second magnetic path portion) between the control board 36 and the sub-cover 32 .
- the sub-ferrite 33 has a sub-ferrite main surface 33a facing the power transmission coil C1 side in the Z direction, and a sub-ferrite back surface 33b opposite to the sub-ferrite main surface 33a.
- the main ferrite 23 and the sub-ferrite 33 do not form a physical gap. It is desirable that the main ferrite 23 is in contact with the sub ferrite 33 . Therefore, the main ferrite 23 may be in contact with the sub ferrite 33 .
- the main ferrite 23 only needs to be magnetically connected to the sub ferrite 33 .
- To be magnetically connected may be defined as that the magnetic path B1 of the main ferrite 23 and the magnetic path B2 of the sub ferrite 33 form one magnetic circuit BS. That is, the main ferrite 23 does not necessarily have to be in direct contact with the sub ferrite 33 .
- the main ferrite 23 can be magnetically connected to the sub ferrite 33 depending on the distance from the main ferrite 23 to the sub ferrite 33 . Therefore, the distance from the main ferrite 23 to the sub ferrite 33 is important. The distance from the main ferrite 23 to the sub ferrite 33 will be described below.
- the distance Hman [mm] from the main ferrite principal surface 23a to the road surface G is equal to or greater than the distance Hsub [mm] from the sub ferrite principal surface 33a to the road surface G.
- the height of the subunit 3 in the Z direction can be made smaller than the height of the main unit 2 in the Z direction.
- the coil device 10 can be configured so as not to obstruct the passage of pedestrians or passenger cars.
- a distance ⁇ D [mm] from the inner end 61c of the flat plate portion 61 in the main ferrite 23 to the inner end 33c of the sub ferrite 33 is 5 mm or less.
- the distance Hman and the distance Hsub are based on the road surface G.
- the elements defining the distance Hman and the distance Hsub are not limited to the road surface G.
- the main base rear surface 21b of the main base 21 may be used instead of the road surface G.
- the distance Hman may be defined as the distance from the main ferrite main surface 23a to the main base back surface 21b.
- the distance Hsub may be defined as the distance from the sub ferrite main surface 33a to the main base back surface 21b.
- FIG. 8 shows only the main ferrite 23, the sub-ferrite 33, and the power transmission coil C1.
- FIG. 8 omits illustration of other components that constitute the coil device 10 .
- the second portion 63 of the main ferrite 23 has a surface 63a facing the power transmission coil C1 side in the Z direction.
- the distance ⁇ H [mm] is the distance from the surface 63 a of the second portion 63 of the main ferrite 23 to the sub ferrite back surface 33 b of the sub ferrite 33 .
- the distance ⁇ H [mm] is 5 mm or less.
- the distance Dman is the distance from the inner end portion 61c of the flat plate portion 61 of the main ferrite 23 to the tip portion 63c of the second portion 63 .
- the distance Dman is greater than the distance ⁇ H [mm].
- the coil device 10 satisfies the relational expressions of 0 [mm] ⁇ ⁇ H ⁇ 5 [mm] and 0 [mm] ⁇ ⁇ D ⁇ Dman.
- a front surface 63a of the tip portion of the second portion 63 faces the sub-ferrite rear surface 33b. That is, the second portion 63 includes a region facing the sub-ferrite back surface 33b and a region not facing the sub-ferrite back surface 33b.
- FIG. 9 a configuration for positioning the subunit 3 with respect to the main unit 2 will be described with respect to the coil device 10 according to the present embodiment with reference to FIGS. 9 and 10.
- FIG. 9 a configuration for positioning the subunit 3 with respect to the main unit 2 will be described with respect to the coil device 10 according to the present embodiment with reference to FIGS. 9 and 10.
- the main waterproof connector 27 is arranged on one side in the Y direction inside the housing portion P of the main unit 2 .
- the main waterproof connector 27 is exposed from the bottom 44 of the main cover 22 .
- a positioning portion 28 is provided on the other side in the Y direction within the accommodating portion P of the main unit 2 .
- the positioning portion 28 is a substantially cylindrical projection divided into two. The positioning portion 28 contacts the bottom portion 44 of the main cover 22 .
- the sub-waterproof connector 37 is arranged on one side in the Y direction on the bottom portion 54 of the sub-base 31 .
- the sub-waterproof connector 37 is exposed from the bottom portion 54 of the sub-base 31 .
- a positioning groove 38 is provided on the bottom portion 54 of the sub-base 31 on the other side in the Y direction.
- the shape of the positioning groove 38 corresponds to the shape of the positioning portion 28 .
- the positioning portion 28 of the main unit 2 can be fitted into the positioning groove 38 of the subunit 3 .
- FIG. 11 a waterproof configuration of the coil device 10 will be described with reference to FIGS. 11, 12 and 13.
- FIG. 11 a waterproof configuration of the coil device 10 will be described with reference to FIGS. 11, 12 and 13.
- the main unit 2 has a main waterproof packing 29.
- the outer shape of the main waterproof packing 29 corresponds to the outer shape of the main base 21 .
- the main waterproof packing 29 is arranged on the periphery of the main base 21 .
- a main waterproof packing 29 is sandwiched between the main base 21 and the main cover 22 . More specifically, the main waterproof packing 29 is sandwiched between the main principal surface 21 s of the main base 21 and the packing groove 22 d provided in the cover rear surface 22 c of the main cover 22 .
- the shape of the main waterproof packing 29 is rectangular and annular (see FIG. 2).
- the main cover 22 is attached to the main base 21 in a watertight manner by disposing the main waterproof packing 29 .
- the main waterproof packing 29 can prevent minute foreign matter such as dust and sand from entering the main housing 20H. That is, the main waterproof packing 29 exhibits waterproofness and dustproofness.
- the main waterproof packing 29 is an independent component.
- the coil device 10 does not require at least the opening of the main housing 20H for maintenance of the control board 36 . Opening the main housing 20 ⁇ /b>H means removing the main cover 22 from the main base 21 . From the point of view of this removal, the main waterproof packing 29 is limited as a structure for waterproofness and dustproofness.
- the need for removal is low, it is possible to employ a configuration in which the main base 21 and the main cover 22 are joined with an adhesive.
- the subunit 3 has a sub waterproof packing 39.
- the outer shape of the sub-waterproof packing 39 corresponds to the outer shape of the sub-base 31 .
- the sub waterproof packing 39 is arranged between the first wall portion 51 of the sub base 31 and the sub cover 32 .
- the shape of the sub-waterproof packing 39 is rectangular and annular.
- the sub-cover 32 is water-tightly attached to the sub-base 31 by arranging the sub-waterproof packing 39 .
- the sub waterproof packing 39 also exhibits waterproofness and dustproofness.
- a waterproof packing 49 is arranged between the contact portion 42 of the main cover 22 and the contact portion 52 of the sub-base 31 (see FIG. 2).
- the sub-base 31 is attached to the main cover 22 in a water-tight manner by arranging the waterproof packing 49 . Watertight attachment of the sub-base 31 to the main cover 22 can prevent water from entering between the main cover 22 and the sub-base 31 .
- the main unit 2 is formed with drain holes 81 .
- the drain hole 81 is a through hole.
- the drain hole 81 drains liquid that has entered the housing portion P.
- the drain hole 81 extends in the Z direction from the bottom portion 44 of the main cover 22 toward the main base rear surface 21b.
- the drain hole 81 penetrates the bottom portion 44 of the main cover 22 and the main base 21 .
- the drain hole 81 is composed of a hole 81 a provided in the main base 21 and a hole 81 b provided in the main cover 22 .
- FIG. 14 a configuration for detachably housing the subunit 3 in the main unit 2 will be described with reference to FIGS. 14, 15, 16 and 17.
- FIG. 14 a configuration for detachably housing the subunit 3 in the main unit 2 will be described with reference to FIGS. 14, 15, 16 and 17.
- an attachment/detachment button 71 and a lock bar 72 are arranged inside the sub-cover 32.
- the attachment/detachment button 71 and the lock bar 72 are arranged on one end side of the sub cover 32 in the X direction.
- the detachable button 71 has a button body 71a and a button flange 71b.
- the button main body 71 a is exposed from the cover upper surface 32 b of the sub cover 32 .
- the button flange 71b extends substantially vertically from the Z-direction end of the button body 71a.
- a flexible bellows 76 may be arranged between the button flange 71 b and the sub cover 32 .
- the button upper surface 71ab may be flush with the cover upper surface 32b.
- a button slope 71ac is formed on a button lower surface 71c opposite to the button upper surface 71ab. Since the button slope 71ac is formed, the thickness of the button main body 71a increases toward the main cover 22 side. Thickness refers to the length in the Z direction.
- a spring 73 that can expand and contract in the Z direction is arranged between the button lower surface 71 c and the sub cover 32 . Spring 73 is, for example, a compression spring
- the lock bar 72 extends along the X direction.
- the lock bar 72 is slidable from the sub cover 32 toward the main cover 22 .
- the lock bar 72 has a bar tip 72a and a bar rear end 72b.
- the bar tip 72a faces the main cover 22 side.
- the bar rear end 72b is formed on the side opposite to the bar front end 72a.
- the bar tip 72 a is exposed from the side surface 32 c of the sub cover 32 .
- the bar tip 72 a is inserted into the insertion hole H 1 provided in the first wall portion 41 of the main cover 22 .
- the bar rear end 72b contacts the button slope 71ac. More specifically, a bar slope 72bc formed in the same direction as the button slope 71ac is formed at the bar rear end 72b.
- the bar slope 72bc contacts the button slope 71ac.
- a spring 74 that can expand and contract in the X direction is arranged on the rear end 72b side of the bar.
- Spring 74 is, for example, a compression spring.
- the bar tip 72 a is inserted into the insertion hole H 1 of the first wall portion 41 by the elastic force of the spring 74 . Thereby, the subunit 3 is fixed with respect to the main unit 2 .
- FIG. 15 illustrates a state in which the attachment/detachment button 71 is pressed by the administrator of the coil device 10 or the like.
- the attachment/detachment button 71 moves in the Z direction by being pressed against the elastic force of the spring 73 .
- the lock bar 72 is moved away from the main cover 22 by the link mechanism. More specifically, the bar slope 72bc contacts the button slope 71ac.
- the attachment/detachment button 71 is pressed in this state, the rear end 72b of the bar slides away from the main cover 22 along the button slope 71ac.
- the bar tip 72 a is pulled out from the insertion hole H 1 of the first wall portion 41 of the main cover 22 .
- the subunit 3 can be removed from the main unit 2 .
- a protrusion 75 is provided on the other end side of the sub cover 32 in the X direction.
- the protrusion 75 protrudes from the side surface 32c of the sub cover 32 toward the main cover 22.
- the protrusion 75 is inserted into the insertion hole H2 provided in the first wall portion 41 of the main cover 22 .
- the lock bar 72 side of the subunit 3 is placed on the insertion hole H1 side. Then, the user places the projection 75 side of the subunit 3 on the insertion hole H2 side. Subsequently, as shown in FIG. 17B, the projection 75 is inserted into the insertion hole H2 while the subunit 3 is rotated around the axis along the Y direction. Subsequently, as shown in FIG. 17(c), the lock bar 72 is inserted into the insertion hole H1. Thereby, the subunit 3 is housed in the main unit 2 .
- the user when the user removes the subunit 3 from the main unit 2 , the user such as the administrator of the coil device 10 presses the attachment/detachment button 71 . As a result, the lock bar 72 is pulled out from the insertion hole H1. In this state, the user can remove the subunit 3 from the main unit 2 by reversing the procedure shown in FIGS. 17(a) to 17(c).
- the coil device 10 described above includes a main unit 2 in which a power transmission coil C1 that transmits electric power in a contactless manner is housed in a main housing 20H that is fixed to the road surface G.
- a sub-housing 30H detachably attached to a main housing 20H accommodates a control board 36 that provides the main unit 2 with electrical functions performed by at least one of the electrical component E1 and the electronic component E2.
- a subunit 3 is provided.
- the main unit 2 has an accommodating portion P that detachably accommodates the subunit 3 .
- a control board 36 including a plurality of electric components E1 and electronic components E2 is accommodated in the sub-housing 30H.
- the sub-housing 30H is detachably housed in the main housing 20H housing the power transmission coil C1.
- the control board 36 can be removed by removing the sub-housing 30H from the main housing 20H. In other words, it is not necessary to open the main housing 20H containing the power transmission coil C1 in order to remove the control board 36. FIG. Therefore, the coil device 10 is easy to maintain.
- the main housing 20H of the coil device 10 includes a main base 21 that is fixed to the road surface G, and a main cover 22 that, together with the main base 21, forms an area for housing the power transmission coil C1.
- the accommodation portion P is a concave portion 22a including an opening 22e formed in the main cover 22. As shown in FIG. According to this configuration, the subunit 3 can be accommodated in the region formed inside the spiral-shaped circular power transmission coil C1.
- the main unit 2 of the coil device 10 is arranged between the main base 21 and the power transmission coil C1.
- the main unit 2 has a main ferrite 23 that forms a magnetic path B1 for the power transmission coil C1 between the power transmission coil C1 and the main base 21 .
- the sub-housing 30H includes a sub-base 31 attached to the main base 21, and a sub-cover 32 forming a region for accommodating the control board 36 together with the sub-base 31.
- the subunit 3 has a subferrite 33 arranged between the control board 36 and the subcover 32 . According to this configuration, magnetic paths B1 and B2 passing through the main ferrite 23 and the sub ferrite 33 are formed.
- An electromagnetic field generated by the power transmission coil C1 passes through the magnetic paths B1 and B2. As a result, leakage of the electromagnetic field generated by the power transmission coil C1 between the main ferrite 23 and the main base 21 can be suppressed. Furthermore, leakage of the electromagnetic field generated by the power transmission coil C1 between the sub-ferrite 33 and the sub-base 31 can be suppressed.
- the control board 36 consists of the main ferrite 23 and the main base 21. is placed between This arrangement can suppress the electromagnetic field generated by the power transmission coil C1 from reaching the control board 36 .
- the power transmission coil C1 is divided into the subferrite 33 and the subcover 32. is placed between This arrangement can further suppress the electromagnetic field generated by the power transmission coil C1 from reaching the control board 36 .
- the main ferrite 23 of the coil device 10 includes a flat plate portion 61 facing the power transmission coil C1 and a connection portion 65 extending from the end of the flat plate portion 61 facing the sub ferrite 33 .
- Connection portion 65 includes a second portion 63 arranged between sub-ferrite 33 and sub-base 31 . According to this arrangement, it is possible to suppress the electromagnetic field generated by the power transmission coil C ⁇ b>1 from reaching the control board 36 through the gap between the main ferrite 23 and the sub ferrite 33 .
- the plurality of subunits 3 have different electrical characteristics and constants. Then, depending on the specifications required of the coil device 10, various specifications can be accommodated by attaching suitable subunits 3 while using the main unit 2 in common. In other words, in order to meet the specifications, it is sufficient to prepare a plurality of types of subunits 3, and the main unit 2 can employ a configuration common to the plurality of types of subunits 3. FIG. Moreover, even when changing the characteristics of the coil device 10, only the subunit 3 needs to be replaced. That is, even if the specifications required for the coil device 10 are changed after the coil device 10 is installed, the subunit 3 can be replaced without modifying the main unit 2 .
- the subunit 3 is desired to be changed as appropriate.
- the coil device 10A of the first modified example has a main ferrite 23A.
- the main ferrite 23 ⁇ /b>A includes a third portion 64 in addition to the flat portion 61 , first portion 62 and second portion 63 .
- the third portion 64 extends from the tip portion 63 c of the second portion 63 toward the sub-ferrite 33 .
- the coil device 10B of the second modified example has a sub-ferrite 33B.
- Subferrite 33B includes first portion 82 .
- the first portion 82 protrudes toward the second portion 63 of the main ferrite 23 from the inner end portion 33c of the sub ferrite 33B.
- the coil device 10C of the third modified example has a main ferrite 23A and a sub ferrite 33B.
- the portion where the main ferrite 23A and the sub ferrite 33B are separated from each other can more reliably prevent the electromagnetic field generated from the power transmission coil C1 from entering the magnetic field prohibited area DA (see FIG. 6).
- the shapes of the positioning part 28 and the positioning groove 38 are not limited to the shapes shown in the embodiment. In this case, the shape of the positioning groove 38 should correspond to the shape of the positioning portion 28 .
- the mode of the housing portion P is not limited to the above.
- the accommodation portion P may be configured by a recess formed in the peripheral portion of the main cover 22 .
- the accommodating part P may be provided outside the power transmission coil C1.
- the distance Hman [mm] from the main ferrite main surface 23a to the road surface G is equal to or greater than the distance Hsub [mm] from the sub ferrite main surface 33a to the road surface G.
- the distance Hman [mm] from the main ferrite main surface 23a to the road surface G may be less than or equal to the distance Hsub [mm] from the sub ferrite main surface 33a to the road surface G.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
2 メインユニット
3 サブユニット
20H メインハウジング
21 メインベース
22 メインカバー
22e 開口
23 メインフェライト(第1磁性部材)
30H サブハウジング
27 メイン防水コネクタ
31 サブベース
32 サブカバー
33 サブフェライト(第2磁性部材)
36 制御基板(電気機能部)
37 サブ防水コネクタ
63c 先端部
65 接続部
C1 送電コイル(コイル)
B1 磁路(第1磁路部)
B2 磁路(第2磁路部)
E1 電気部品
E2 電子部品
G 路面(設置対象)
P 収容部
Claims (6)
- 電力を非接触で送電又は受電するコイルが設置対象に固定されるメインハウジングに収容されたメインユニットと、
前記メインハウジングに着脱可能に取り付けられるサブハウジングに、電気部品及び電子部品の少なくとも一方によって奏される電気的機能を前記メインユニットに提供する電気機能部が収容されたサブユニットと、を備え、
前記メインユニットは、前記サブユニットを着脱可能に収容する収容部を有するコイル装置。 - 前記メインハウジングは、前記設置対象に固定されるメインベースと、前記メインベースと共に前記コイルを収容する領域を形成するメインカバーと、を含み、
前記収容部は、前記メインカバーに形成された開口を含む凹部である、請求項1に記載のコイル装置。 - 前記メインユニットは、前記メインベースと前記コイルとの間に配置されて、前記コイルと前記メインベースとの間に前記コイルに関する第1磁路部を形成する第1磁性部材を有し、
前記サブハウジングは、前記メインベースに取り付けられるサブベースと、前記サブベースと共に前記電気機能部を収容する領域を形成するサブカバーと、を含み、
前記サブユニットは、前記電気機能部と前記サブカバーとの間に配置されて、前記電気機能部と前記サブカバーとの間に、前記第1磁路部に磁気的につながる第2磁路部を形成する第2磁性部材と、を有する、請求項2に記載のコイル装置。 - 前記サブユニットが前記メインユニットに取り付けられた状態において、前記メインカバーの法線方向に対して直交する方向から見たとき、前記電気機能部は、前記メインフェライトと前記メインベースとの間に配置されている、請求項3に記載のコイル装置。
- 前記サブユニットが前記メインユニットに取り付けられた状態において、前記メインカバーの法線方向に対して直交する方向から見たとき、前記コイルは、前記サブフェライトと前記サブカバーとの間に配置されている、請求項3又は4に記載のコイル装置。
- 前記第1磁性部材は、前記コイルと対面する平板部と、前記平板部において前記第2磁性部材と対面する端部から延びる接続部と、を含み、
前記接続部は、前記第2磁性部材と前記サブベースとの間に配置された部分を含む、請求項3~5の何れか一項に記載のコイル装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/282,065 US20240153698A1 (en) | 2021-04-13 | 2022-02-01 | Coil device |
DE112022000573.4T DE112022000573T5 (de) | 2021-04-13 | 2022-02-01 | Spulenvorrichtung |
JP2023514346A JPWO2022219882A1 (ja) | 2021-04-13 | 2022-02-01 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021067586 | 2021-04-13 | ||
JP2021-067586 | 2021-04-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022219882A1 true WO2022219882A1 (ja) | 2022-10-20 |
Family
ID=83639549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/003832 WO2022219882A1 (ja) | 2021-04-13 | 2022-02-01 | コイル装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240153698A1 (ja) |
JP (1) | JPWO2022219882A1 (ja) |
DE (1) | DE112022000573T5 (ja) |
WO (1) | WO2022219882A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016143341A1 (ja) * | 2015-03-11 | 2016-09-15 | パナソニックIpマネジメント株式会社 | 非接触給電装置および非接触給電システム |
JP2017126596A (ja) * | 2016-01-12 | 2017-07-20 | トヨタ自動車株式会社 | 送電装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015176898A (ja) | 2014-03-13 | 2015-10-05 | 矢崎総業株式会社 | コイルユニット及び非接触給電装置 |
JP6366318B2 (ja) | 2014-03-26 | 2018-08-01 | マクセルホールディングス株式会社 | 非接触電力伝送手段を備えた電源 |
-
2022
- 2022-02-01 JP JP2023514346A patent/JPWO2022219882A1/ja active Pending
- 2022-02-01 WO PCT/JP2022/003832 patent/WO2022219882A1/ja active Application Filing
- 2022-02-01 US US18/282,065 patent/US20240153698A1/en active Pending
- 2022-02-01 DE DE112022000573.4T patent/DE112022000573T5/de active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016143341A1 (ja) * | 2015-03-11 | 2016-09-15 | パナソニックIpマネジメント株式会社 | 非接触給電装置および非接触給電システム |
JP2017126596A (ja) * | 2016-01-12 | 2017-07-20 | トヨタ自動車株式会社 | 送電装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2022219882A1 (ja) | 2022-10-20 |
US20240153698A1 (en) | 2024-05-09 |
DE112022000573T5 (de) | 2023-10-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101440741B1 (ko) | 휴대 기기 및 급전 시스템 | |
KR101122983B1 (ko) | 코일 유닛 및 전자 기기 | |
KR102152653B1 (ko) | 무선 전력 수신 장치 | |
US20140232331A1 (en) | Vehicle wireless charging pad mounting systems | |
US20140210276A1 (en) | Power reception device, power transmission device and wireless power transmission system | |
WO2012039245A1 (ja) | 非接触式電力伝送用のコイルモジュール、およびこれを具備する電池パックおよび充電装置 | |
KR20060060545A (ko) | 무선 통신 단말기, 무선 통신 단말기 수용 케이스, 무선통신 단말기 대응 시트, 및 무선 통신 단말기 대응 표시기기 | |
US6373221B2 (en) | Charger coupling | |
CN109075822B (zh) | 无线模块、rfid系统以及无线供电装置 | |
US10361591B2 (en) | Inductive power transfer coils with parasitic resonators | |
US10910865B2 (en) | Power transmission communication unit | |
US20180137970A1 (en) | Coil unit | |
US20190238188A1 (en) | Male connector, female connector, and connection structure of male connector and female connector | |
US20180278094A1 (en) | Console box | |
CN109074954B (zh) | 线圈装置 | |
WO2022219882A1 (ja) | コイル装置 | |
WO2013150784A1 (ja) | コイルユニット及びコイルユニットを備える電力伝送装置 | |
EP3561826B1 (en) | Connector and power supply system | |
KR20160125786A (ko) | 배터리 모듈 | |
US11912149B2 (en) | Misalignment detection device and coil device | |
CN107276240B (zh) | 送电装置 | |
KR20170105418A (ko) | 비접촉 충전용 코일 애시 | |
US8553918B2 (en) | Battery contact for a hearing apparatus | |
KR20160050445A (ko) | 무선충전장치 | |
US20180269719A1 (en) | Power transmission device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22787810 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2023514346 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 112022000573 Country of ref document: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18282065 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 22787810 Country of ref document: EP Kind code of ref document: A1 |