ROTARY ELECTRIC MACHINE WINDING SWITCHING DEVICE, ROTARY ELECTRIC MACHINE DRIVE SYSTEM, AND ELECTRIC APPARATUS

• Main Authors: NISHIHAMA KAZUO, SUGIMOTO SHINJI, TAKAHASHI AKIFUMI
• Format: Patent
• Language: English; Japanese
• Published: 01.10.2020
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

To provide a winding switching device that can be small-sized.SOLUTION: A winding switching device (9) for switching parallel connection and serial connection of a plurality of windings of a rotary electric machine comprises: a plurality of electrodes to which a plurality of windings and a power supply are connected; a movable part (33) that is in contact with the plurality of electrodes and comprises a plurality of conductor parts (32a to 32f); and an actuator (31) that drives the movable part. Depending on a contact state between the plurality of electrodes and the plurality of conductor parts, the plurality of windings are connected in parallel at a first position of the movable part and the plurality of windings are connected in series at a second position of the movable part. The plurality of electrodes include a first electrode (22Ue2) to which a winding for a first phase of the rotary electric machine of the plurality of windings is connected and a second electrode (22Vs1) to which a winding for a second phase of the rotary electric machine of the plurality of windings is connected. The first electrode and the second electrode are adjacent to each other and constitute a neutral point (N).SELECTED DRAWING: Figure 1 【課題】小型化が可能な巻線切替装置を提供する。【解決手段】巻線切替装置（９）は、回転電機の複数の巻線の並列結線および直列結線を切り替えるものであって、複数の巻線および電源が接続される複数の電極と、複数の電極に接触し、複数の導体部（３２ａ〜３２ｆ）を備える可動部（３３）と、可動部を駆動するアクチュエータ（３１）と、を備え、複数の電極と複数の導体部の接触状態に応じて、可動部の第１の位置では、複数の巻線が並列結線され、可動部の第２の位置では、複数の巻線が直列結線され、複数の電極は、複数の巻線の内、回転電機の第１相用の巻線が接続される第１の電極（２２Ｕｅ２）と、複数の巻線の内、回転電機の第２相用の巻線が接続される第２の電極（２２Ｖｓ１）と、を含み、第１の電極および第２の電極は、互いに隣接するとともに、中性点（Ｎ）を構成する。【選択図】図１