NONCONTACT POWER TRANSMISSION SYSTEM, AND POWER TRANSMISSION DEVICE

• Main Author: KOTANI HIROYUKI
• Format: Patent
• Language: English; Japanese
• Published: 25.05.2017
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To provide a noncontact power transmission system capable of supplying an electric power to a plurality of power-receiving devices at a time, and supplying an electric power to only a power transmission inductor that needs power transmission thereto, which can hold down the manufacturing cost.SOLUTION: A noncontact power transmission system C transmits an electric power from a power transmission device A to power-receiving devices B1 to B3 in a noncontact manner. The power transmission device A includes: a high-frequency power supply device 1 operable to output a constant high-frequency current; a plurality of power transmission units 21 to 23 connected in series; switches 61 to 63 each connected in parallel between input terminals of the corresponding power transmission unit 21 to 23; and a controller 5 which opens the switch connected in parallel between the input terminals of the power transmission unit concerned when the power-receiving device B1 to B3 is disposed in a position where it can receive an electric power from any of the power transmission units 21 to 23.SELECTED DRAWING: Figure 1 【課題】複数の受電装置に同時に電力を供給でき、送電が必要な送電コイルにのみ電力を供給し、製造コストを抑制することができる非接触電力伝送システムを提供する。【解決手段】送電装置Ａから受電装置Ｂ１〜Ｂ３に非接触で電力を供給する非接触電力伝送システムＣにおいて、送電装置Ａは、一定の高周波電流を出力する高周波電源装置１と、直列に接続された送電ユニット２１〜２３と、各送電ユニット２１〜２３の入力端子間にそれぞれ並列接続されているスイッチ６１〜６３と、受電装置Ｂ１〜Ｂ３がいずれかの送電ユニット２１〜２３から受電可能な位置に配置された場合に、当該送電ユニットの入力端子間に並列接続されているスイッチを開放状態に切り替える制御装置５とを備えるようにした。【選択図】図１