WO2013121535A1 - Non-contact power supply apparatus - Google Patents
Non-contact power supply apparatus Download PDFInfo
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- WO2013121535A1 WO2013121535A1 PCT/JP2012/053530 JP2012053530W WO2013121535A1 WO 2013121535 A1 WO2013121535 A1 WO 2013121535A1 JP 2012053530 W JP2012053530 W JP 2012053530W WO 2013121535 A1 WO2013121535 A1 WO 2013121535A1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Definitions
- the present invention relates to a technical field of a non-contact power feeding apparatus that performs power transfer in a non-contact manner.
- a device for example, includes an insulation converter for a system that ensures insulation between the power supply unit and the mobile unit drive unit between the power supply unit and the mobile unit drive unit including the drive unit. (See Patent Document 1).
- the present invention has been made in view of the above-described problems, for example, and an object of the present invention is to provide a non-contact power feeding device that can simplify the insulation structure and prevent electric shock.
- the non-contact power supply device of the present invention includes a power acquisition unit that acquires external power, a power transmission unit that can supply power to the power reception unit of the power reception side device via a space, Energy transmission means arranged in the middle of an energy transmission path from the power acquisition means to the power transmission unit, for transferring energy through a space.
- the power acquisition unit acquires, for example, power from a household power source or a commercial power source, or power from a solar power generator.
- a power transmission unit such as a coil and an antenna is configured to be able to supply electric power to a power reception unit such as a coil and an antenna of the power receiving side device via a space.
- the power transmission unit is configured to be able to supply power to the power reception unit when the power reception unit of the power reception side device is disposed opposite the power transmission unit.
- the power transmission unit of the non-contact power supply apparatus is often fixed, for example, in a state where at least a part is exposed on the ground surface. Then, when power is not being exchanged between the non-contact power feeding device and the power receiving side device (that is, when the non-contact power feeding device is on standby), a person who touches the power transmission unit of the non-contact power feeding device leaks. There is a risk of electric shock due to electric current.
- energy transmission means for transferring energy via a space is arranged in the middle of the energy transmission path from the power acquisition means to the power transmission unit. That is, in this invention, it is comprised by the energy transmission means so that an electric power acquisition means and a power transmission part may not conduct
- the energy transmission means includes energy transmission means and energy reception means.
- the energy transfer means transfers energy by applying a high frequency voltage to the energy transmission means, for example, and causing the energy reception means to generate an induced electromotive force due to the applied high frequency voltage.
- the energy transmission means exchanges energy by converting electricity into light by, for example, an energy transmission means, and reconverting the converted light into electricity by the energy receiving means.
- the energy transfer means transfers energy by converting electricity into microwaves by, for example, energy transmission means, and reconverting the converted microwaves into electricity by the energy receiving means.
- the energy transmission means is disposed, for example, inside the housing of the non-contact power feeding device, and there is no portion exposed to the outside.
- the installation wiring of the circuit including the energy receiving means and the power transmission unit of the energy transmission means is connected to the power acquisition means via an X capacitor or a Y capacitor, noise can be reduced, which is very practical. It is advantageous.
- FIG. 1 is a block diagram illustrating a configuration of the non-contact power feeding device according to the first embodiment.
- the non-contact power supply apparatus 100 includes a power acquisition unit 101 that acquires power supplied from an external power supply 10, a resonance capacitor 102, a power transmission coil 103, and a power factor correction (Power Factor Correction: PFC) unit 110. And a converter unit 120 and an inverter unit 130 for driving the resonant capacitor 102 and the power transmission coil 103.
- the external power source 10 may be an AC power source such as a household power source or a commercial power source, or may be a DC power source such as a solar power generator.
- the power receiving side device 200 includes a load 201 such as a battery mounted on an electric vehicle, a secondary resonance capacitor 202, a rectifier 203, and a power receiving coil 204.
- the power transmitting coil 103 and the power receiving coil 204 are arranged to face each other with a predetermined gap therebetween. Then, a high-frequency voltage is applied to the power transmission coil 103 by the inverter unit 130, and an induced electromotive force due to the applied high-frequency voltage is generated in the power reception coil 204, whereby electric power is transmitted from the non-contact power feeding device 100 to the power receiving side device 200. Supplied.
- the power transmission coil 103 of the non-contact power feeding apparatus 100 is fixed, for example, in a state where at least a part is exposed on the ground surface.
- the power receiving side device 200 is mounted on a vehicle such as an electric vehicle, for example, and a power receiving coil 204 is often disposed at the bottom of the vehicle.
- an insulating circuit including a transformer 121 having a primary side coil 122 and a secondary side coil 123 is formed in the converter unit 120.
- the electrical connection between the power acquisition unit 101 and the power transmission coil 103 is interrupted by the transformer 121. That is, the power transmission coil 103 is electrically disconnected from the external power supply 10.
- generation of leakage current can be suppressed, and electric shock can be suitably prevented.
- the converter part 120 is typically stored in the inside of the housing of the non-contact power supply apparatus 100, there is very little possibility that a person will inadvertently touch the converter part 120.
- the “power acquisition unit 101”, “power transmission coil 103”, “transformer 121”, “primary coil 122”, and “secondary coil 123” according to the present embodiment are respectively “power acquisition means” according to the present invention.
- the transformer 121 is taken as an example of the “energy transmission means” according to the present invention, but a photocoupler or the like may be used, for example.
- the number of insulation circuits (here, “transformer 121”) is not limited to one, and a plurality of insulation circuits may be provided on the energy transmission path from the power acquisition unit 101 to the power transmission coil 103.
- FIG. 2 is a block diagram showing a configuration of a non-contact power feeding device according to a comparative example having the same concept as in FIG.
- the non-contact power feeding apparatus 300 includes a power acquisition unit 301, a resonance capacitor 302, a power transmission coil 303, a PFC unit 310, and an inverter unit 330. As shown in FIG. 2, the power acquisition unit 301 and the power transmission coil 303 are electrically connected.
- the wireless power supply device 300 is on standby, if a person carelessly touches the power transmission coil 303 of the wireless power supply device 300, there is a risk of electric shock due to leakage current. For this reason, in order to ensure the insulation of the power transmission coil 303 in the non-contact power feeding apparatus 300, for example, the degree of freedom of design is remarkably reduced or the manufacturing cost is increased due to restrictions such as an insulating material and a creepage distance. There is a fear.
- the transformer 121 is disconnected from the power acquisition unit 101 and the power transmission coil 103. Compared to the non-contact power feeding apparatus 100 according to the comparative example, it is greatly reduced.
- FIG. 3 is a block diagram showing the configuration of the non-contact power feeding device according to the second embodiment having the same concept as in FIG.
- the ground wiring of the circuit including the secondary coil 123 of the transformer 121 and the power transmission coil 103 is connected to the power acquisition unit 101 via the Y capacitor 140. With this configuration, noise can be reduced, which is very advantageous in practice.
- a leakage current flows through the power transmission coil 103 in accordance with the capacity of the Y capacitor 140. For this reason, if the capacitance of the Y capacitor 140 is set so that the leakage current is within the allowable range, electric shock can be made relatively easy and prevented.
- ground wiring may be connected to the power acquisition unit 101 via an X capacitor instead of the Y capacitor 140.
- the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist or concept of the invention that can be read from the claims and the entire specification, and a non-contact power feeding device with such a change Is also included in the technical scope of the present invention.
- DESCRIPTION OF SYMBOLS 10 External power supply, 100 ... Non-contact electric power feeder, 101, 301 ... Electric power acquisition part, 102, 302 ... Resonance capacitor, 103, 303 ... Power transmission coil, 110, 310 ... PFC part, 120 ... Converter part, 121 ... Transformer, DESCRIPTION OF SYMBOLS 122 ... Primary coil, 123 ... Secondary coil, 130, 330 ... Inverter part, 140 ... Y capacitor, 200 ... Power-receiving side device, 201 ... Load, 202 ... Secondary resonance capacitor, 203 ... Rectifier, 204 ... Power receiving coil
Abstract
A non-contact power supply apparatus (100) is provided with: a power acquiring means (101), which acquires external power; a power transmitting section (103), which is capable of supplying, via a space, power to a power receiving section (204) of a power receiving apparatus; and an energy transmitting means (121), which is disposed in an energy transmitting path between the power acquiring means and the power transmitting section, and which transmits/receives energy via the space. Generation of a leak current is suppressed by interrupting conduction between the power acquiring means and the power transmitting section by means of the energy transmitting means, and an electrical shock can be suitably eliminated.
Description
本発明は、非接触に電力授受を行う非接触給電装置の技術分野に関する。
The present invention relates to a technical field of a non-contact power feeding apparatus that performs power transfer in a non-contact manner.
この種の装置として、例えば、電力供給部と、駆動装置を含む移動体駆動部との間に、電力供給部及び移動体駆動部間の絶縁を確保するシステム用絶縁コンバータを備える装置が提案されている（特許文献１参照）。
As this type of device, for example, a device is proposed that includes an insulation converter for a system that ensures insulation between the power supply unit and the mobile unit drive unit between the power supply unit and the mobile unit drive unit including the drive unit. (See Patent Document 1).
しかしながら、上述の背景技術によれば、他の構造物との絶縁が比較的複雑になる可能性があるという技術的問題点がある。
However, according to the background art described above, there is a technical problem that insulation from other structures may be relatively complicated.
本発明は、例えば上記問題点に鑑みてなされたものであり、絶縁構造の簡略化を図ることができ、且つ感電を防止することができる非接触給電装置を提供することを課題とする。
The present invention has been made in view of the above-described problems, for example, and an object of the present invention is to provide a non-contact power feeding device that can simplify the insulation structure and prevent electric shock.
本発明の非接触給電装置は、上記課題を解決するために、外部電力を取得する電力取得手段と、受電側装置の受電部に対して空間を介して電力を供給可能な送電部と、前記電力取得手段から前記送電部までのエネルギー伝達経路の途中に配置され、空間を介してエネルギーを授受するエネルギー伝達手段と、を備える。
In order to solve the above problems, the non-contact power supply device of the present invention includes a power acquisition unit that acquires external power, a power transmission unit that can supply power to the power reception unit of the power reception side device via a space, Energy transmission means arranged in the middle of an energy transmission path from the power acquisition means to the power transmission unit, for transferring energy through a space.
本発明の非接触給電装置によれば、電力取得手段は、例えば家庭用電源若しくは商用電源からの電力、或いは、太陽光発電機からの電力を取得する。例えばコイル、アンテナ等の送電部は、受電側装置の、例えばコイル、アンテナ等の受電部に対して空間を介して電力を供給可能に構成されている。具体的には、送電部は、受電側装置の受電部が該送電部に対向配置された場合に、該受電部に対し電力を供給可能に構成されている。
According to the non-contact power feeding device of the present invention, the power acquisition unit acquires, for example, power from a household power source or a commercial power source, or power from a solar power generator. For example, a power transmission unit such as a coil and an antenna is configured to be able to supply electric power to a power reception unit such as a coil and an antenna of the power receiving side device via a space. Specifically, the power transmission unit is configured to be able to supply power to the power reception unit when the power reception unit of the power reception side device is disposed opposite the power transmission unit.
本願発明者の研究によれば、以下の事項が判明している。即ち、非接触給電装置において、電源から送電部まで電気的に接続されている場合、送電部を構成する金属部材を、絶縁材料で覆ったとしても、該絶縁材料の比誘電率により決定される容量値によっては漏洩電流が生じる。ここで、非接触給電装置の送電部は、例えば地表に少なくとも一部が露出した状態で固定されていることが多い。すると、非接触給電装置と受電側装置との間で電力の授受が行われていない場合に（つまり、非接触給電装置の待機時に）、非接触給電装置の送電部に触れた人が、漏洩電流のために感電するおそれがある。
According to the inventor's research, the following matters have been found. That is, in the non-contact power feeding device, when electrically connected from the power source to the power transmission unit, even if the metal member constituting the power transmission unit is covered with an insulating material, it is determined by the relative dielectric constant of the insulating material. Depending on the capacitance value, leakage current occurs. Here, the power transmission unit of the non-contact power supply apparatus is often fixed, for example, in a state where at least a part is exposed on the ground surface. Then, when power is not being exchanged between the non-contact power feeding device and the power receiving side device (that is, when the non-contact power feeding device is on standby), a person who touches the power transmission unit of the non-contact power feeding device leaks. There is a risk of electric shock due to electric current.
しかるに本発明では、電力取得手段から送電部までのエネルギー伝達経路の途中に、空間を介してエネルギーを授受するエネルギー伝達手段が配置されている。つまり、本発明では、エネルギー伝達手段により、電力取得手段と送電部とが導通しないように構成されている。
However, in the present invention, energy transmission means for transferring energy via a space is arranged in the middle of the energy transmission path from the power acquisition means to the power transmission unit. That is, in this invention, it is comprised by the energy transmission means so that an electric power acquisition means and a power transmission part may not conduct | electrically_connect.
エネルギー伝達手段は、エネルギー送信手段とエネルギー受信手段とを有して構成されている。エネルギー伝達手段は、例えばエネルギー送信手段に高周波電圧を印加し、該印加された高周波電圧に起因する誘導起電力をエネルギー受信手段に生じさせることによりエネルギーを授受する。或いは、エネルギー伝達手段は、例えばエネルギー送信手段により電気を光に変換し、エネルギー受信手段により該変換された光を電気に再変換することによってエネルギーを授受する。或いは、エネルギー伝達手段は、例えばエネルギー送信手段により電気をマイクロ波に変換し、エネルギー受信手段により該変換されたマイクロ波を電気に再変換することによってエネルギーを授受する。
The energy transmission means includes energy transmission means and energy reception means. The energy transfer means transfers energy by applying a high frequency voltage to the energy transmission means, for example, and causing the energy reception means to generate an induced electromotive force due to the applied high frequency voltage. Alternatively, the energy transmission means exchanges energy by converting electricity into light by, for example, an energy transmission means, and reconverting the converted light into electricity by the energy receiving means. Alternatively, the energy transfer means transfers energy by converting electricity into microwaves by, for example, energy transmission means, and reconverting the converted microwaves into electricity by the energy receiving means.
この結果、送電部は、電源から電気的に切り離されることとなり、感電を防止することができる。尚、エネルギー伝達手段は、例えば当該非接触給電装置の筐体内部に配置され、外部に露出する部分は無い。
As a result, the power transmission unit is electrically disconnected from the power source, and an electric shock can be prevented. The energy transmission means is disposed, for example, inside the housing of the non-contact power feeding device, and there is no portion exposed to the outside.
エネルギー伝達手段のエネルギー受信手段と送電部とを含んでなる回路の設置配線を、電力取得手段に、Ｘコンデンサ又はＹコンデンサを介して接続すれば、ノイズを低減することができ、実用上非常に有利である。
If the installation wiring of the circuit including the energy receiving means and the power transmission unit of the energy transmission means is connected to the power acquisition means via an X capacitor or a Y capacitor, noise can be reduced, which is very practical. It is advantageous.
本発明の作用及び他の利得は次に説明する実施するための形態から明らかにされる。
The operation and other advantages of the present invention will be clarified from the embodiments to be described below.
以下、本発明の非接触給電装置に係る実施形態について、図面に基づいて説明する。
Hereinafter, embodiments according to the non-contact power feeding device of the present invention will be described with reference to the drawings.
＜第１実施形態＞
本発明の非接触給電装置に係る第１実施形態について、図１を参照して説明する。図１は、第１実施形態に係る非接触給電装置の構成を示すブロック図である。 <First Embodiment>
1st Embodiment which concerns on the non-contact electric power feeder of this invention is described with reference to FIG. FIG. 1 is a block diagram illustrating a configuration of the non-contact power feeding device according to the first embodiment.
本発明の非接触給電装置に係る第１実施形態について、図１を参照して説明する。図１は、第１実施形態に係る非接触給電装置の構成を示すブロック図である。 <First Embodiment>
1st Embodiment which concerns on the non-contact electric power feeder of this invention is described with reference to FIG. FIG. 1 is a block diagram illustrating a configuration of the non-contact power feeding device according to the first embodiment.
図１において、非接触給電装置１００は、外部電源１０から供給される電力を取得する電力取得部１０１と、共振コンデンサ１０２と、送電コイル１０３と、力率改善（Ｐｏｗｅｒ Ｆａｃｔｏｒ Ｃｏｒｒｅｃｔｉｏｎ：ＰＦＣ）部１１０と、コンバータ部１２０と、共振コンデンサ１０２及び送電コイル１０３を駆動するインバータ部１３０と、を備えて構成されている。
In FIG. 1, the non-contact power supply apparatus 100 includes a power acquisition unit 101 that acquires power supplied from an external power supply 10, a resonance capacitor 102, a power transmission coil 103, and a power factor correction (Power Factor Correction: PFC) unit 110. And a converter unit 120 and an inverter unit 130 for driving the resonant capacitor 102 and the power transmission coil 103.
外部電源１０は、例えば家庭用電源、商用電源等の交流電源であってもよいし、或いは、例えば太陽光発電機等の直流電源であってもよい。
The external power source 10 may be an AC power source such as a household power source or a commercial power source, or may be a DC power source such as a solar power generator.
受電側装置２００は、例えば電気自動車に搭載されるバッテリ等である負荷２０１と、二次共振コンデンサ２０２と、整流器２０３と、受電コイル２０４と、を備えて構成されている。
The power receiving side device 200 includes a load 201 such as a battery mounted on an electric vehicle, a secondary resonance capacitor 202, a rectifier 203, and a power receiving coil 204.
非接触給電装置１００から受電側装置２００に電力が供給される際には、送電コイル１０３と受電コイル２０４とが、所定の間隙を隔てて対向配置される。そして、インバータ部１３０により送電コイル１０３に高周波電圧が印加され、該印加された高周波電圧に起因する誘導起電力が受電コイル２０４に生じることによって、非接触給電装置１００から受電側装置２００に電力が供給される。
When power is supplied from the non-contact power supply apparatus 100 to the power receiving side apparatus 200, the power transmitting coil 103 and the power receiving coil 204 are arranged to face each other with a predetermined gap therebetween. Then, a high-frequency voltage is applied to the power transmission coil 103 by the inverter unit 130, and an induced electromotive force due to the applied high-frequency voltage is generated in the power reception coil 204, whereby electric power is transmitted from the non-contact power feeding device 100 to the power receiving side device 200. Supplied.
尚、非接触給電装置１００の送電コイル１０３は、例えば地表に少なくとも一部が露出した状態で固定されていることが多い。他方、受電側装置２００は、例えば電気自動車等の車両に搭載され、該車両の底部に受電コイル２０４が配置されていることが多い。
In many cases, the power transmission coil 103 of the non-contact power feeding apparatus 100 is fixed, for example, in a state where at least a part is exposed on the ground surface. On the other hand, the power receiving side device 200 is mounted on a vehicle such as an electric vehicle, for example, and a power receiving coil 204 is often disposed at the bottom of the vehicle.
本実施形態では特に、コンバータ部１２０に、一次側コイル１２２及び二次側コイル１２３を有するトランス１２１からなる絶縁回路が形成されている。このため、トランス１２１により、電力取得部１０１と送電コイル１０３との間の導通が断たれることとなる。つまり、送電コイル１０３は、外部電源１０から電気的に切り離されることとなる。この結果、漏洩電流の発生を抑制することができ、感電を好適に防止することができる。
In this embodiment, in particular, an insulating circuit including a transformer 121 having a primary side coil 122 and a secondary side coil 123 is formed in the converter unit 120. For this reason, the electrical connection between the power acquisition unit 101 and the power transmission coil 103 is interrupted by the transformer 121. That is, the power transmission coil 103 is electrically disconnected from the external power supply 10. As a result, generation of leakage current can be suppressed, and electric shock can be suitably prevented.
尚、コンバータ部１２０は、典型的には、非接触給電装置１００の筐体内部に格納されるので、人が不用意に、コンバータ部１２０に触れる可能性は極めて少ない。
In addition, since the converter part 120 is typically stored in the inside of the housing of the non-contact power supply apparatus 100, there is very little possibility that a person will inadvertently touch the converter part 120.
本実施形態に係る「電力取得部１０１」、「送電コイル１０３」、「トランス１２１」、「一次側コイル１２２」及び「二次側コイル１２３」は、夫々、本発明に係る「電力取得手段」、「送電部」、「エネルギー伝達手段」、「エネルギー送信手段」及び「エネルギー受信手段」の一例である。
The “power acquisition unit 101”, “power transmission coil 103”, “transformer 121”, “primary coil 122”, and “secondary coil 123” according to the present embodiment are respectively “power acquisition means” according to the present invention. , “Power transmission unit”, “energy transmission unit”, “energy transmission unit”, and “energy reception unit”.
本実施形態では、本発明に係る「エネルギー伝達手段」としてトランス１２１を例に挙げたが、例えばフォトカプラ等であってもよい。また、絶縁回路（ここでは、“トランス１２１”）は、一つに限らず、電力取得部１０１から送電コイル１０３までのエネルギー伝達経路上に複数設けられてもよい。
In the present embodiment, the transformer 121 is taken as an example of the “energy transmission means” according to the present invention, but a photocoupler or the like may be used, for example. In addition, the number of insulation circuits (here, “transformer 121”) is not limited to one, and a plurality of insulation circuits may be provided on the energy transmission path from the power acquisition unit 101 to the power transmission coil 103.
（比較例）
次に、比較例に係る非接触給電装置について、図２を参照して説明する。図２は、図１と同趣旨の、比較例に係る非接触給電装置の構成を示すブロック図である。 (Comparative example)
Next, a non-contact power feeding device according to a comparative example will be described with reference to FIG. FIG. 2 is a block diagram showing a configuration of a non-contact power feeding device according to a comparative example having the same concept as in FIG.
次に、比較例に係る非接触給電装置について、図２を参照して説明する。図２は、図１と同趣旨の、比較例に係る非接触給電装置の構成を示すブロック図である。 (Comparative example)
Next, a non-contact power feeding device according to a comparative example will be described with reference to FIG. FIG. 2 is a block diagram showing a configuration of a non-contact power feeding device according to a comparative example having the same concept as in FIG.
図２において、非接触給電装置３００は、電力取得部３０１、共振コンデンサ３０２、送電コイル３０３、ＰＦＣ部３１０及びインバータ部３３０を備えて構成されている。図２に示すように、電力取得部３０１と送電コイル３０３との間は導通している。
2, the non-contact power feeding apparatus 300 includes a power acquisition unit 301, a resonance capacitor 302, a power transmission coil 303, a PFC unit 310, and an inverter unit 330. As shown in FIG. 2, the power acquisition unit 301 and the power transmission coil 303 are electrically connected.
非接触給電装置３００では、送電コイル３０３を構成する金属部材が絶縁材料で覆われていたとしても、該絶縁材料の比誘電率により決定される容量値によっては漏洩電流が生じることが、本願発明者の研究により判明している。
In the non-contact power supply apparatus 300, even if the metal member constituting the power transmission coil 303 is covered with an insulating material, leakage current may occur depending on the capacitance value determined by the relative dielectric constant of the insulating material. Has been found by the research of the former.
すると、非接触給電装置３００の待機時においても、該非接触給電装置３００の送電コイル３０３に、人が不用意に触れてしまうと、漏洩電流のために感電するおそれがある。このため、非接触給電装置３００において送電コイル３０３の絶縁を確保するためには、例えば絶縁材料や沿面距離等の制約により、例えば設計の自由度が著しく低下したり、製造コストが増加したりするおそれがある。
Then, even when the wireless power supply device 300 is on standby, if a person carelessly touches the power transmission coil 303 of the wireless power supply device 300, there is a risk of electric shock due to leakage current. For this reason, in order to ensure the insulation of the power transmission coil 303 in the non-contact power feeding apparatus 300, for example, the degree of freedom of design is remarkably reduced or the manufacturing cost is increased due to restrictions such as an insulating material and a creepage distance. There is a fear.
上述した第１実施形態に係る非接触給電装置１００では、トランス１２１により、電力取得部１０１と送電コイル１０３との間の導通が断たれているので、例えば絶縁材料や沿面距離等の制約が、比較例に係る非接触給電装置１００に比べ、大幅に軽減される。
In the contactless power supply device 100 according to the first embodiment described above, the transformer 121 is disconnected from the power acquisition unit 101 and the power transmission coil 103. Compared to the non-contact power feeding apparatus 100 according to the comparative example, it is greatly reduced.
＜第２実施形態＞
本発明の非接触給電装置に係る第２実施形態を、図３を参照して説明する。第２実施形態では、構成が一部異なる以外は、第１実施形態の構成と同様である。よって、第２実施形態について、第１実施形態と重複する説明を省略すると共に、図面上における共通箇所には同一符号を付して示し、基本的に異なる点についてのみ図３を参照して説明する。図３は、図１と同趣旨の、第２実施形態に係る非接触給電装置の構成を示すブロック図である。 <Second Embodiment>
A second embodiment according to the non-contact power feeding device of the present invention will be described with reference to FIG. The second embodiment is the same as the first embodiment except that the configuration is partially different. Therefore, in the second embodiment, the description overlapping with that of the first embodiment is omitted, and common portions in the drawing are denoted by the same reference numerals, and only different points are basically described with reference to FIG. To do. FIG. 3 is a block diagram showing the configuration of the non-contact power feeding device according to the second embodiment having the same concept as in FIG.
本発明の非接触給電装置に係る第２実施形態を、図３を参照して説明する。第２実施形態では、構成が一部異なる以外は、第１実施形態の構成と同様である。よって、第２実施形態について、第１実施形態と重複する説明を省略すると共に、図面上における共通箇所には同一符号を付して示し、基本的に異なる点についてのみ図３を参照して説明する。図３は、図１と同趣旨の、第２実施形態に係る非接触給電装置の構成を示すブロック図である。 <Second Embodiment>
A second embodiment according to the non-contact power feeding device of the present invention will be described with reference to FIG. The second embodiment is the same as the first embodiment except that the configuration is partially different. Therefore, in the second embodiment, the description overlapping with that of the first embodiment is omitted, and common portions in the drawing are denoted by the same reference numerals, and only different points are basically described with reference to FIG. To do. FIG. 3 is a block diagram showing the configuration of the non-contact power feeding device according to the second embodiment having the same concept as in FIG.
図３に示すように、トランス１２１の二次側コイル１２３と、送電コイル１０３とを含んでなる回路の接地配線は、Ｙコンデンサ１４０を介して、電力取得部１０１に接続されている。このように構成すれば、ノイズを低減することができ、実用上非常に有利である。
As shown in FIG. 3, the ground wiring of the circuit including the secondary coil 123 of the transformer 121 and the power transmission coil 103 is connected to the power acquisition unit 101 via the Y capacitor 140. With this configuration, noise can be reduced, which is very advantageous in practice.
ここで、送電コイル１０３には、Ｙコンデンサ１４０の容量に応じて漏洩電流が流れる。このため、漏洩電流が許容範囲内になるように、Ｙコンデンサ１４０の容量を設定すれば、感電を比較的容易にして防止することができる。
Here, a leakage current flows through the power transmission coil 103 in accordance with the capacity of the Y capacitor 140. For this reason, if the capacitance of the Y capacitor 140 is set so that the leakage current is within the allowable range, electric shock can be made relatively easy and prevented.
尚、上記接地配線は、Ｙコンデンサ１４０に代えて、Ｘコンデンサを介して、電力取得部１０１に接続されてもよい。
Note that the ground wiring may be connected to the power acquisition unit 101 via an X capacitor instead of the Y capacitor 140.
本発明は、上述した実施形態に限られるものではなく、請求の範囲及び明細書全体から読み取れる発明の要旨或いは思想に反しない範囲で適宜変更可能であり、そのような変更を伴う非接触給電装置もまた本発明の技術的範囲に含まれるものである。
The present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist or concept of the invention that can be read from the claims and the entire specification, and a non-contact power feeding device with such a change Is also included in the technical scope of the present invention.
１０…外部電源、１００…非接触給電装置、１０１、３０１…電力取得部、１０２、３０２…共振コンデンサ、１０３、３０３…送電コイル、１１０、３１０…ＰＦＣ部、１２０…コンバータ部、１２１…トランス、１２２…一次側コイル、１２３…二次側コイル、１３０、３３０…インバータ部、１４０…Ｙコンデンサ、２００…受電側装置、２０１…負荷、２０２…二次共振コンデンサ、２０３…整流器、２０４…受電コイル
DESCRIPTION OF SYMBOLS 10 ... External power supply, 100 ... Non-contact electric power feeder, 101, 301 ... Electric power acquisition part, 102, 302 ... Resonance capacitor, 103, 303 ... Power transmission coil, 110, 310 ... PFC part, 120 ... Converter part, 121 ... Transformer, DESCRIPTION OF SYMBOLS 122 ... Primary coil, 123 ... Secondary coil, 130, 330 ... Inverter part, 140 ... Y capacitor, 200 ... Power-receiving side device, 201 ... Load, 202 ... Secondary resonance capacitor, 203 ... Rectifier, 204 ... Power receiving coil
Claims (4)
- 外部電力を取得する電力取得手段と、
受電側装置の受電部に対して空間を介して電力を供給可能な送電部と、
前記電力取得手段から前記送電部までのエネルギー伝達経路の途中に配置され、空間を介してエネルギーを授受するエネルギー伝達手段と、
を備えることを特徴とする非接触給電装置。 Power acquisition means for acquiring external power;
A power transmission unit capable of supplying power via a space to the power reception unit of the power receiving side device;
An energy transmission means that is arranged in the middle of an energy transmission path from the power acquisition means to the power transmission unit, and transfers energy through a space;
A non-contact power feeding device comprising: - 前記エネルギー伝達手段は、
エネルギー送信手段と、
前記エネルギー送信手段から出力されたエネルギーを受信するエネルギー受信手段と、
を含み
前記エネルギー受信手段と前記送電部とは互いに電気的に接続されている
ことを特徴とする請求項１に記載の非接触給電装置。 The energy transmission means is
Energy transmission means;
Energy receiving means for receiving energy output from the energy transmitting means;
The contactless power supply device according to claim 1, wherein the energy receiving unit and the power transmission unit are electrically connected to each other. - 前記エネルギー受信手段と前記送電部とを含んでなる回路の接地配線は、前記電力取得手段に、Ｘコンデンサ又はＹコンデンサを介して接続されていることを特徴とする請求項２に記載の非接触給電装置。 The non-contact according to claim 2, wherein a ground wiring of a circuit including the energy receiving unit and the power transmission unit is connected to the power acquisition unit via an X capacitor or a Y capacitor. Power supply device.
- 前記エネルギー送信手段と前記電力取得手段とは互いに電気的に接続されていることを特徴とする請求項２に記載の非接触給電装置。 3. The non-contact power feeding apparatus according to claim 2, wherein the energy transmission unit and the power acquisition unit are electrically connected to each other.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/053530 WO2013121535A1 (en) | 2012-02-15 | 2012-02-15 | Non-contact power supply apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/053530 WO2013121535A1 (en) | 2012-02-15 | 2012-02-15 | Non-contact power supply apparatus |
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| WO2013121535A1 true WO2013121535A1 (en) | 2013-08-22 |
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| PCT/JP2012/053530 WO2013121535A1 (en) | 2012-02-15 | 2012-02-15 | Non-contact power supply apparatus |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08293326A (en) * | 1994-12-02 | 1996-11-05 | Delco Electron Corp | Untouched battery charging system with high-voltage cable |
| WO2008090722A1 (en) * | 2007-01-23 | 2008-07-31 | Panasonic Corporation | Liquid crystal display device |
| JP2010166693A (en) * | 2009-01-15 | 2010-07-29 | Nissan Motor Co Ltd | Non-contact power supply device |
| JP2011147278A (en) * | 2010-01-15 | 2011-07-28 | Daifuku Co Ltd | Lead-battery charger |
-
2012
- 2012-02-15 WO PCT/JP2012/053530 patent/WO2013121535A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08293326A (en) * | 1994-12-02 | 1996-11-05 | Delco Electron Corp | Untouched battery charging system with high-voltage cable |
| WO2008090722A1 (en) * | 2007-01-23 | 2008-07-31 | Panasonic Corporation | Liquid crystal display device |
| JP2010166693A (en) * | 2009-01-15 | 2010-07-29 | Nissan Motor Co Ltd | Non-contact power supply device |
| JP2011147278A (en) * | 2010-01-15 | 2011-07-28 | Daifuku Co Ltd | Lead-battery charger |
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