WO2023286264A1 - 非接触給電装置、非接触給電システム、エレベーター、およびリニア搬送装置 - Google Patents
非接触給電装置、非接触給電システム、エレベーター、およびリニア搬送装置 Download PDFInfo
- Publication number
- WO2023286264A1 WO2023286264A1 PCT/JP2021/026733 JP2021026733W WO2023286264A1 WO 2023286264 A1 WO2023286264 A1 WO 2023286264A1 JP 2021026733 W JP2021026733 W JP 2021026733W WO 2023286264 A1 WO2023286264 A1 WO 2023286264A1
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- Prior art keywords
- power
- receiving coil
- power receiving
- power supply
- contactless
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; 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—ELECTRIC POWER NETWORKS; 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
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2105/00—Networks for supplying or distributing electric power characterised by their spatial reach or by the load
- H02J2105/30—Networks for supplying or distributing electric power characterised by their spatial reach or by the load the load networks being external to vehicles, i.e. exchanging power with vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Definitions
- This application relates to a contactless power supply device, a contactless power supply system, an elevator, and a linear transport device.
- a power receiving coil is provided on a moving body, and a plurality of power transmitting coils are arranged along the moving path of the moving body.
- a contactless power supply provided is known.
- a phenomenon occurs in which the magnetic fields generated by the adjacent power transmission coils cancel each other out, which may reduce the power supplied or make it impossible to supply power.
- control for synchronizing the operation of power transmission circuits is performed.
- the period during which the magnetic field generated by one power transmission coil is stronger than the magnetic field generated by the other power transmission coil and the magnetic field generated by one of the power transmission coils is A plurality of power transmission power sources are controlled so that a period in which the magnetic field generated by the other power transmission coil is weaker alternately appears regardless of the moving position of the moving object.
- Such a configuration enables contactless power transmission without synchronizing the output phases of a plurality of power transmission circuits.
- Patent Literature 1 Japanese Patent Literature 1
- a period for intentionally weakening the magnetic field generated by the power transmission coil is required, so the power that can be supplied is small with respect to the power capacity of the power transmission circuit. For this reason, it is necessary to design the power transmission circuit to have a larger power capacity than the power required by the load, which poses a problem of increasing costs.
- the present application discloses a technology for solving the above problems, which enables stable power supply regardless of the position of the moving body and the output phase of the power transmission circuit, and achieves cost reduction with a simple configuration.
- An object of the present invention is to obtain a possible contactless power supply device. It is another object of the present invention to provide a contactless power supply system, an elevator, and a linear transport apparatus capable of stable power supply regardless of the position of a moving body and the output phase of a power transmission circuit.
- a contactless power supply device disclosed in the present application includes: a power receiving coil having a plurality of power receiving coil windings provided on a moving body so as to face a power transmitting coil provided on a moving path; a plurality of power receiving circuits for converting AC power output from the power receiving coils into DC power, the plurality of power receiving coil windings being arranged along the moving direction of the moving body and part of adjacent power receiving coil windings; are arranged so as to overlap each other.
- a contactless power supply system disclosed in the present application includes a contactless power supply device disclosed in the present application, and a plurality of power transmission coils that are provided at intervals along a movement path of a moving body and that transmit power to power reception coils in a contactless manner. and a power transmission circuit for driving the power transmission coil.
- the elevator disclosed in the present application includes a non-contact power supply device disclosed in the present application, a car provided to be able to ascend and descend in the hoistway, and a wall surface of the hoistway spaced apart from each other along the movement path of the car. and a power transmission circuit for driving the power transmission coils.
- the linear transfer device disclosed in the present application includes the non-contact power supply device disclosed in the present application, a movable element that moves along the transfer rail, and a movable element that is provided along the transfer rail and is spaced apart from each other. It is provided with a plurality of power transmission coils for non-contact power transmission to the power reception coils, and a power transmission circuit for driving the power transmission coils.
- the power supply performance does not deteriorate even in a situation where the power transmission coil is positioned at the boundary between the power receiving coil windings, and the power supply performance is stable regardless of the position of the moving body and the output phase of the power transmission circuit. Power can be supplied, and the cost can be reduced with a simple configuration.
- FIG. 1 is a block diagram showing the configuration of a contactless power supply system according to Embodiment 1;
- FIG. 1 is a diagram showing a configuration example of a contactless power supply system according to Embodiment 1;
- FIG. 4 is a diagram illustrating the relationship between the arrangement and dimensions of power transmission/reception coils in the contactless power supply system according to Embodiment 1.
- FIG. FIG. 2 is a diagram illustrating an arrangement example of power transmitting/receiving coils in the contactless power supply system according to Embodiment 1; It is a figure explaining the example of arrangement
- FIG. 10 is a diagram showing a configuration example of a contactless power supply system according to Embodiment 2;
- FIG. 10 is a diagram showing another configuration example of the contactless power supply system according to Embodiment 2;
- FIG. 11 is a diagram showing a configuration example of an elevator according to Embodiment 3;
- FIG. 14 is a diagram showing a configuration example of a linear transport device according to Embodiment 4;
- FIG. 1 is a block diagram showing the configuration of a contactless power supply system according to Embodiment 1
- FIG. 2 is a diagram showing a configuration example of the contactless power supply system according to Embodiment 1.
- the same reference numerals are given to the same or corresponding parts.
- the contactless power supply system 100 includes a plurality of power transmission coils 12 a and 12 b (generally referred to as power transmission coils 12 ), power transmission circuits 11a and 11b (generally referred to as the power transmission circuit 11) that drive the power transmission coil 12, and a power reception coil 21 provided on the mobile body 2 so as to face the power transmission coil 12 as the mobile body 2 moves. and a plurality of power receiving circuits 22a and 22b (collectively called power receiving circuits 22) for converting AC power output from the power receiving coil 21 into DC power.
- the plurality of power transmission coils 12 are arranged along the movement direction of the mobile body 2 (indicated by arrow X in FIG. 2; hereinafter referred to as movement direction X), and transmit power to the power reception coil 21 in a contactless manner.
- movement direction X movement direction of the mobile body 2
- FIG. 2 it is assumed that the moving body 2 moves in the left-right direction of the paper surface, and the power transmission circuits 11a and 11b and the power transmission coil 12 are arranged side by side in the left-right direction.
- the quantity ratio of the power transmission circuit 11 and the power transmission coil 12 does not need to be one to one, and a configuration in which one power transmission circuit 11 drives a plurality of power transmission coils 12 may be employed.
- the power transmission circuit 11 is a power supply that outputs high-frequency current or voltage, and drives the power transmission coil 12 .
- the configuration of the power transmission circuit 11 is not particularly limited, and may include a power converter such as an inverter or a DC/DC converter.
- the output waveform of the power transmission circuit 11 may be a sine wave of a specific frequency, or may be a waveform including a plurality of frequency components such as a rectangular wave shape.
- the power transmission coil 12 includes a power transmission coil winding, converts electrical energy into magnetic energy, and transmits the magnetic energy to the power reception coil 21 .
- the power receiving coil 21 receives magnetic energy from the power transmitting coil 12 and converts it into electrical energy. That is, power is transmitted from the power transmission coil 12 to the power reception coil 21 in a non-contact manner by magnetic coupling (magnetic field coupling) between the power transmission coil 12 and the power reception coil 21 .
- the power transmitting coil 12 may be configured to include a magnetic material in order to enhance magnetic coupling with the power receiving coil 21, or may be configured to include a metal shield for shielding electromagnetic noise.
- a contactless power supply device 1 includes a power receiving coil 21 having a plurality of power receiving coil windings 21 a and 21 b provided on a moving body 2 so as to face a power transmitting coil 12 provided on a moving path, and each of the power receiving coil windings 21 a and 21 b. It includes a plurality of power receiving circuits 22 connected to the power receiving coil windings 21a and 21b and configured to convert AC power output from the power receiving coil 21 into DC power.
- the plurality of power receiving coil windings 21a and 21b are arranged along the movement direction X of the moving body 2, and are arranged such that adjacent power receiving coil windings 21a and 21b partially overlap each other.
- a plurality of power receiving circuits 22a and 22b are provided in the moving body 2 and connected to the plurality of power receiving coil windings 21a and 21b, respectively.
- the power receiving circuit 22 has, for example, a configuration in which four diode elements are connected in a full bridge.
- the number of power receiving circuits 22 corresponds to the number of power receiving coil windings included in power receiving coil 21 .
- the power receiving circuit 22 may include a filter configured with a reactor or a capacitor in order to attenuate high frequency components contained in the DC power.
- the power receiving coil windings 21a and 21b may be configured to include a magnetic material in order to enhance magnetic coupling with the power transmitting coil 12, or may be configured to include a metal shield for shielding electromagnetic noise. .
- the load 23 provided in the moving body 2 is, for example, equipment such as a motor that consumes power, lighting, or a storage battery, and the load 23 consumes or stores power.
- the load 23 may be configured to include a filter for removing high frequencies on the input side, or may be configured to include a power converter for adjusting the load voltage.
- the power receiving coil 21 has overlapping portions 213 in which parts of the adjacent power receiving coil windings 21a and 21b overlap each other.
- one power receiving coil winding 21b is arranged along the other power receiving coil winding 21a at a position farther from the power transmitting coil 12 than the other power receiving coil winding 21a.
- the plurality of power receiving coil windings 21a and 21b each have a first winding portion 211 extending along a common plane 211a parallel to the moving direction X.
- the surface of the first winding portion 211 on the power transmitting coil 12 side is a common surface 211a.
- one of the power receiving coil windings 21b extends along the common plane 211a and the common plane 211a along a plane further from the power transmitting coil 12 than the common plane 211a (for example, the plane 211b of the first winding portion 211 on the side farther from the power transmitting coil 12). It has a second winding portion 212 extending in parallel. The second winding portion 212 is shorter than the first winding portion 211 and is integrated with the first winding portion 211 .
- the other power receiving coil winding 21 a is composed of only the first winding portion 211 .
- the second winding portion 212 of one power receiving coil winding 21b is arranged so as to overlap the first winding portion 211 of the other power receiving coil winding 21a.
- the first winding portion 211 and the second winding portion 212 are parallel or substantially parallel to each other.
- L1 is the length dimension in the moving direction X of the entire power receiving coil 21 including the two power receiving coil windings 21a and 21b.
- L2 is the sum of the installation interval between the two adjacent power transmission coils 12a and 12b and the length dimension in the movement direction X of the two power transmission coils 12a and 12b.
- L3 is the length dimension in the moving direction X of the power receiving coil winding 21a.
- the length dimension of the power receiving coil winding 21b in the movement direction X is also the same as or approximately the same as L3.
- L4 is the installation interval between the two adjacent power transmission coils 12a and 12b
- L5 is the length dimension in the movement direction X of the overlapping portion 213 of the power reception coil windings 21a and 21b.
- L6 is the length dimension in the moving direction X of the power transmission coil 12 .
- the length L1 of the power receiving coil 21 in the moving direction X is equal to or greater than the sum L2 of the installation interval between the two adjacent power transmitting coils 12a and 12b and the length of the two power transmitting coils 12a and 12b in the moving direction X (that is, L1 ⁇ L2). If L1 is smaller than L2, the movement of the power receiving coil 21 may create a section that does not face the power transmitting coil 12, making continuous power feeding impossible.
- the length dimension L3 in the moving direction X of the power receiving coil winding 21a needs to be less than or equal to the installation interval L4 between the two adjacent power transmitting coils 12a and 12b (that is, L3 ⁇ L4). If L3 is greater than L4, there is a section where two power transmission coils 12a and 12b face each other at the same time with respect to one power reception coil winding 21a (or 21b), and there is a risk that power cannot be supplied due to the magnetic field cancellation phenomenon. .
- the length dimension L5 in the moving direction X of the overlapping portion 213 of the adjacent power receiving coil windings 21a and 21b is equal or approximately equal to the length dimension L6 in the moving direction X of the power transmitting coil 12. If L5 is much larger than L6, power supply is stabilized at the overlapping portion 213, but the amount of wire used for the power receiving coil windings 21a and 21b increases, leading to an increase in cost. On the other hand, if L5 is significantly smaller than L6, the amount of wire used is reduced, but the stability of power supply at the overlapping portion 213 may be impaired. Therefore, from the viewpoint of cost and power supply stability, it is preferable to design L5 and L6 to be approximately the same.
- FIG. 5 shows an arrangement example of power transmitting and receiving coils in a contactless power supply system in which the power receiving coil windings do not have overlapping portions.
- the positional relationship between the power transmitting coil 12 and the power receiving coil 21 that changes as the mobile body 2 moves can be roughly classified into the following three types.
- FIG. 4( a ) shows a first arrangement, in which two power transmission coils 12 face the power reception coil 21 .
- the power transmitting coil 12a faces the power receiving coil winding 21a
- the power transmitting coil 12b faces the power receiving coil winding 21b
- the two power receiving coil windings 21a and 21b are different from each other. 12b is ready to receive power. Therefore, the magnetic fluxes generated by the two power transmission coils 12a and 12b do not interlink with the single power reception coil winding 21a (or 21b), thereby preventing magnetic field cancellation.
- FIG. 4(b) shows a second arrangement, in which one power transmission coil 12 faces either one of the power reception coil windings 21a, 21b.
- the power transmitting coil 12b faces the power receiving coil winding 21b, and is in a state where power can be received from the power transmitting coil 12b.
- the second arrangement since power is supplied from one power transmission coil 12 to one power reception coil winding 21a (or 21b), it is the same as a general non-contact power supply method, and there is no problem.
- FIG. 4(c) shows a third arrangement, in which one power transmission coil 12 faces both of the two power reception coil windings 21a and 21b.
- the power transmitting coil 12b faces the overlapping portion 213 of the power receiving coil windings 21a and 21b.
- both of the two receiving coil windings 21a, 21b are ready to receive power from one transmitting coil 12b.
- the two power receiving coil windings 21a and 21b have an overlapping portion 213, so that two magnetic couplings (in the example shown in FIG. 4C, the power transmitting coil 12b and the power receiving coil This avoids weakening both the magnetic coupling with the winding 21a and the magnetic coupling between the power transmission coil 12b and the power reception coil winding 21b.
- one of the power receiving coil windings 21a (or 21b) is always ready to receive power, and the power feeding performance does not deteriorate.
- another power receiving coil winding is additionally arranged at the same position as the second winding portion 212 of the overlapping portion 213 of the power receiving coil windings 21a and 21b.
- this countermeasure requires the addition of a new power receiving coil winding and a power receiving circuit, which causes an increase in cost. Therefore, the configuration in which the power receiving coil windings 21a and 21b have an overlapping portion 213 is preferable from the viewpoint of reducing the number of parts and reducing costs.
- the power receiving coil 21 includes the plurality of power receiving coil windings 21a and 21b arranged along the movement direction X of the moving body 2, Since the receiving coil windings 21a and 21b are arranged to partially overlap each other, even in a situation where the power transmitting coil 12 is positioned at the boundary between the receiving coil windings 21a and 21b, either one of the receiving coil windings is always used.
- the line 21a (or 21b) can receive power, and power supply performance does not deteriorate.
- one power receiving coil winding 21a does not face two power transmitting coils 12a and 12b at the same time, the magnetic fluxes generated by the two power transmitting coils 12a and 12b are combined into one power receiving coil winding 21a (or 21b) can prevent cancellation of the magnetic field.
- the system since it does not require control means for suppressing the output of the power transmission circuit, or control means and sensor parts for synchronizing the operation of the power transmission circuit, which were used in conventional systems, the system can be simplified and the cost can be reduced. planned. Therefore, according to the first embodiment, stable power supply is possible regardless of the position of the moving body 2 and the output phase of the power transmission circuit 11, and the contactless power supply device 1 capable of cost reduction with a simple configuration and A contactless power supply system 100 is obtained.
- Embodiment 2. 6 and 7 show configuration examples of a contactless power supply system according to the second embodiment.
- the non-contact power supply system according to Embodiment 2 is the same as the non-contact power supply system 100 according to Embodiment 1 above except for the configuration of the power receiving coil, so only differences will be described.
- the plurality of power receiving coil windings 21a, 21b, and 21c are arranged on a common plane 211a parallel to the moving direction X (for example, the power transmitting coil 12 of the first winding portion 211). along the first winding portion 211 extending along the first winding portion 211 extending along the side surface) and a surface further from the power transmission coil 12 than the common surface 211a (for example, a surface 211b of the first winding portion 211 on the side farther from the power transmission coil 12). and a second winding portion 212 extending parallel to the common plane 211a.
- the power receiving coil 21 has two power receiving coil windings 21a and 21b, and the second winding portion 212 of one power receiving coil winding 21b is the first winding portion 212 of the other power receiving coil winding 21a. It is arranged along the winding portion 211 and forms an overlapping portion 213 . Also, the second winding portion 212 of the other power receiving coil winding 21a does not form an overlapping portion because there is no adjacent power receiving coil winding.
- the receiving coil windings 21a and 21b have the same shape or substantially the same shape, and the same structure or substantially the same structure.
- the power receiving coil 21 has three power receiving coil windings 21a, 21b, and 21c, and the respective power receiving coil windings 21a, 21b, and 21c are connected to the power receiving circuits 22a, 22b, and 22c one-to-one. It is
- the receiving coil windings 21a, 21b, and 21c have the same shape or substantially the same shape, and the same structure or substantially the same structure. According to the configuration of FIG. 7, the range in which power can be received is expanded compared to the configuration of FIG.
- the number of power receiving coil windings included in power receiving coil 21 is not particularly limited, and may be four or more.
- the shape and structure of the plurality of power receiving coil windings are made common, so that the length dimension in the movement direction of the power receiving coil 21 can be easily extended. can do.
- the manufacturing process of the power receiving coil winding is shared, the manufacturing cost can be reduced.
- the power receiving range can be expanded, and individual power receiving coil design according to the power receiving range requirements is facilitated or unnecessary, so design costs can be reduced.
- FIG. 8 shows a configuration example of an elevator according to Embodiment 3.
- the elevator according to Embodiment 3 includes the contactless power supply device 1 according to Embodiment 1 (see FIGS. 1 and 2) and a moving body 2 provided to be able to ascend and descend in a hoistway between a plurality of floors. It is equipped with a car 201 as.
- the elevator also includes a plurality of power transmission coils 12 spaced apart from each other along the movement path of the car 201 and a power transmission circuit 11 that drives the power transmission coils 12 .
- the power transmission circuits 11a and 11b and the power transmission coils 12a and 12b are provided on the wall surface 202 of the hoistway.
- the power transmission coil 12 performs contactless power transmission to the power reception coil 21 provided in the car 201 .
- the car 201 includes a power receiving coil 21 (see FIG. 2) having power receiving coil windings 21 a and 21 b, power receiving circuits 22 a and 22 b, and a load 23 .
- Power receiving coil 21 is provided so as to face power transmitting coil 12 as car 201 moves.
- the load 23 in the elevator is, for example, lighting and air conditioning equipment used in the car 201 .
- the power receiving coil 21 includes a plurality of power receiving coil windings 21a, 21b arranged along the moving direction X of the car 201, and the adjacent power receiving coil windings 21a, 21b are arranged so that parts of the adjacent power receiving coil windings 21a, 21b overlap each other. .
- one power receiving coil winding 21b is attached to the other power receiving coil winding 21a at a position farther from the power transmitting coil 12 than the other power receiving coil winding 21a. placed along.
- the elevator according to Embodiment 3 includes the contactless power supply device 1 according to Embodiment 1 described above, but may include the contactless power supply device 1 according to Embodiment 2 described above. According to Embodiment 3, by including the contactless power supply device 1, an elevator capable of stable power supply regardless of the position of the car 201 and the output phase of the power transmission circuit 11 is obtained.
- FIG. 9 shows a configuration example of a linear transfer device according to Embodiment 4.
- the linear transfer device according to the fourth embodiment includes the non-contact power supply device 1 according to the first embodiment, the mover 203 that moves along the transfer rail 204, and the movable element 203 that is provided along the transfer rail 204 with a space therebetween. It includes a plurality of power transmission coils 12 a and 12 b and a power transmission circuit 11 (see FIG. 2 ) that drives the power transmission coils 12 .
- the power transmission coil 12 performs contactless power transmission to the power reception coil 21 (see FIG. 2) provided on the mover 203 .
- the power transmission circuit 11 and the plurality of power transmission coils 12 a and 12 b are installed, for example, on the floor surface 205 below the carrier rails 204 .
- Power receiving coil 21 is installed on the bottom of mover 203 so as to face power transmitting coil 12 as mover 203 moves.
- Power receiving circuit 22 (see FIG. 2) and load 23 (see FIG. 2) are mounted on mover 203 .
- the load 23 in the linear transport device is, for example, a device for gripping a transported object, an assembly robot, or the like.
- the power receiving coil 21 includes a plurality of power receiving coil windings 21a and 21b arranged along the movement direction X of the mover 203, and the adjacent power receiving coil windings 21a and 21b are arranged such that parts of the adjacent power receiving coil windings 21a and 21b overlap each other. .
- one power receiving coil winding 21b is attached to the other power receiving coil winding 21a at a position farther from the power transmitting coil 12 than the other power receiving coil winding 21a. placed along.
- the linear transfer apparatus according to the fourth embodiment includes the contactless power supply device 1 according to the first embodiment, it may include the contactless power supply device 1 according to the second embodiment. According to the fourth embodiment, by including the non-contact power supply device 1, a linear transfer device capable of stable power supply regardless of the position of the mover 203 and the output phase of the power transmission circuit 11 is obtained.
- 1 non-contact power supply device 2 moving body, 11, 11a, 11b power transmission circuit, 12, 12a, 12b power transmission coil, 21 power reception coil, 21a, 21b, 21c, 21d, 21e power reception coil winding, 22, 22a, 22b, 22c power receiving circuit, 23 load, 100 non-contact power supply system, 201 car, 202 wall surface, 203 mover, 204 transport rail, 205 floor surface, 211 first winding portion, 211a common surface, 211b surface, 212 second winding Line part, 213 overlapping part
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- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
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- Automation & Control Theory (AREA)
- Structural Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
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Abstract
Description
また、移動体の位置および送電回路の出力位相に関わらず安定した給電が可能な非接触給電システム、エレベーター、およびリニア搬送装置を提供することを目的とする。
本願の上記以外の目的、特徴、観点および効果は、図面を参照する以下の詳細な説明から、さらに明らかになるであろう。
以下に、実施の形態1による非接触給電装置および非接触給電システムについて、図面に基づいて説明する。図1は、実施の形態1による非接触給電システムの構成を示すブロック図、図2は、実施の形態1による非接触給電システムの構成例を示す図である。なお、図中、同一または相当部分には同一符号を付している。
よって、本実施の形態1によれば、移動体2の位置および送電回路11の出力位相に関わらず安定した給電が可能であり、簡易な構成で低コスト化が可能な非接触給電装置1および非接触給電システム100が得られる。
図6および図7は、実施の形態2による非接触給電システムの構成例を示している。実施の形態2による非接触給電システムは、受電コイルの構成以外、上記実施の形態1による非接触給電システム100と同様であるので、相違点のみ説明する。
図8は、実施の形態3によるエレベーターの構成例を示している。実施の形態3によるエレベーターは、上記実施の形態1による非接触給電装置1(図1および図2参照)と、複数の階床間に亘って昇降路内を昇降自在に設けられた移動体2としての乗りかご201とを備えている。
実施の形態3によれば、非接触給電装置1を備えることにより、乗りかご201の位置および送電回路11の出力位相に関わらず安定した給電が可能なエレベーターが得られる。
図9は、実施の形態4によるリニア搬送装置の構成例を示している。実施の形態4によるリニア搬送装置は、上記実施の形態1による非接触給電装置1と、搬送レール204に沿って移動する可動子203と、搬送レール204に沿って互いに間隔をあけて設けられた複数の送電コイル12a、12bと、送電コイル12を駆動する送電回路11(図2参照)とを備えている。
実施の形態4によれば、非接触給電装置1を備えることにより、可動子203の位置および送電回路11の出力位相に関わらず安定した給電が可能なリニア搬送装置が得られる。
従って、例示されていない無数の変形例が、本願明細書に開示される技術の範囲内において想定される。例えば、少なくとも一つの構成要素を変形する場合、追加する場合または省略する場合、さらには、少なくとも一つの構成要素を抽出し、他の実施の形態の構成要素と組み合わせる場合が含まれるものとする。
Claims (11)
- 移動経路に設けられた送電コイルと対向するように移動体に設けられ、複数の受電コイル巻線を有する受電コイルと、
それぞれの前記受電コイル巻線に接続され、前記受電コイルから出力される交流電力を直流電力に変換する複数の受電回路とを備え、
前記複数の受電コイル巻線は、前記移動体の移動方向に沿って並べられ、
隣接する前記受電コイル巻線の一部が互いに重なるように配置されることを特徴とする非接触給電装置。 - 隣接する前記受電コイル巻線の重なり部分において、一方の前記受電コイル巻線は、他方の前記受電コイル巻線よりも前記送電コイルから離れた位置で、前記他方の受電コイル巻線に沿って配置されることを特徴とする請求項1記載の非接触給電装置。
- 前記複数の受電コイル巻線は、前記移動方向に平行な共通面に沿って延びる第一巻線部をそれぞれ有し、
前記一方の受電コイル巻線は、前記共通面よりも前記送電コイルから離れた面に沿って前記共通面と平行に延びる第二巻線部をさらに有することを特徴とする請求項2に記載の非接触給電装置。 - 前記複数の受電コイル巻線は、前記移動方向に平行な共通面に沿って延びる第一巻線部と、前記共通面よりも前記送電コイルから離れた面に沿って前記共通面と平行に延びる第二巻線部とをそれぞれ有することを特徴とする請求項2に記載の非接触給電装置。
- 前記複数の受電コイル巻線は、同一形状であることを特徴とする請求項4記載の非接触給電装置。
- 前記受電コイルの前記移動方向の長さ寸法は、隣接する二つの前記送電コイルの設置間隔と前記二つの送電コイルの前記移動方向の長さ寸法の和以上であることを特徴とする請求項1から請求項5のいずれか一項に記載の非接触給電装置。
- 前記受電コイル巻線の前記移動方向の長さ寸法は、隣接する二つの前記送電コイルの設置間隔以下であることを特徴とする請求項1から請求項6のいずれか一項に記載の非接触給電装置。
- 隣接する前記受電コイル巻線の重なり部分の前記移動方向の長さ寸法は、前記送電コイルの前記移動方向の長さ寸法と等しいことを特徴とする請求項1から請求項7のいずれか一項に記載の非接触給電装置。
- 請求項1から請求項8のいずれか一項に記載の非接触給電装置と、
移動体の移動経路に沿って互いに間隔をあけて設けられ、前記受電コイルに非接触で電力伝送する複数の送電コイルと、
前記送電コイルを駆動する送電回路とを備えたことを特徴とする非接触給電システム。 - 請求項1から請求項8のいずれか一項に記載の非接触給電装置と、
昇降路内を昇降自在に設けられた乗りかごと、
前記乗りかごの移動経路に沿って互いに間隔をあけて前記昇降路の壁面に設けられ、前記乗りかごに設けられた前記受電コイルに非接触で電力伝送する複数の送電コイルと、
前記送電コイルを駆動する送電回路とを備えたことを特徴とするエレベーター。 - 請求項1から請求項8のいずれか一項に記載の非接触給電装置と、
搬送レールに沿って移動する可動子と、
前記搬送レールに沿って互いに間隔をあけて設けられ、前記可動子に設けられた前記受電コイルに非接触で電力伝送する複数の送電コイルと、
前記送電コイルを駆動する送電回路とを備えたことを特徴とするリニア搬送装置。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2021/026733 WO2023286264A1 (ja) | 2021-07-16 | 2021-07-16 | 非接触給電装置、非接触給電システム、エレベーター、およびリニア搬送装置 |
| US18/564,629 US20240258828A1 (en) | 2021-07-16 | 2021-07-16 | Non-contact power supply device, non-contact power supply system, elevator, and linear conveyor |
| JP2023534563A JP7566159B2 (ja) | 2021-07-16 | 2021-07-16 | 非接触給電装置、非接触給電システム、エレベーター、およびリニア搬送装置 |
| CN202180100460.XA CN117616664A (zh) | 2021-07-16 | 2021-07-16 | 非接触供电装置、非接触供电系统、电梯以及直线式搬送装置 |
| DE112021007985.9T DE112021007985T5 (de) | 2021-07-16 | 2021-07-16 | Kontaktlose energieversorgungseinrichtung, kontaktloses energieversorgungssystem, fahrstuhl, sowie linearförderer |
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| PCT/JP2021/026733 WO2023286264A1 (ja) | 2021-07-16 | 2021-07-16 | 非接触給電装置、非接触給電システム、エレベーター、およびリニア搬送装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220158500A1 (en) * | 2019-04-26 | 2022-05-19 | Mitsubishi Electric Corporation | Elevator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016005984A1 (en) * | 2014-07-10 | 2016-01-14 | Powermat Technologies Ltd. | System and methods for power coupling using coils array |
| WO2017149600A1 (ja) * | 2016-02-29 | 2017-09-08 | 三菱電機エンジニアリング株式会社 | 無線電力伝送装置 |
| US20190207427A1 (en) * | 2017-12-31 | 2019-07-04 | Blynk Technology | Methods and apparatuses for powering electrical systems onboard carts |
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| JP7141922B2 (ja) | 2018-11-20 | 2022-09-26 | 日本無線株式会社 | 非接触電力伝送装置及び非接触電力伝送システム |
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- 2021-07-16 WO PCT/JP2021/026733 patent/WO2023286264A1/ja not_active Ceased
- 2021-07-16 JP JP2023534563A patent/JP7566159B2/ja active Active
- 2021-07-16 CN CN202180100460.XA patent/CN117616664A/zh active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016005984A1 (en) * | 2014-07-10 | 2016-01-14 | Powermat Technologies Ltd. | System and methods for power coupling using coils array |
| WO2017149600A1 (ja) * | 2016-02-29 | 2017-09-08 | 三菱電機エンジニアリング株式会社 | 無線電力伝送装置 |
| US20190207427A1 (en) * | 2017-12-31 | 2019-07-04 | Blynk Technology | Methods and apparatuses for powering electrical systems onboard carts |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220158500A1 (en) * | 2019-04-26 | 2022-05-19 | Mitsubishi Electric Corporation | Elevator |
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| DE112021007985T5 (de) | 2024-05-02 |
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| JPWO2023286264A1 (ja) | 2023-01-19 |
| CN117616664A (zh) | 2024-02-27 |
| US20240258828A1 (en) | 2024-08-01 |
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