种混合励磁电机

• Format: Patent
• Language: Chinese
• Published: 05.03.2019
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

本发明公开了种混合励磁电机，其包括同轴套设的定子和转子，其中套设在外的定子或转子的内壁周向开设凹槽，套设在内的转子或定子的外表面开设凹槽，定子槽内放置直流励磁绕组和交流电枢绕组，定子齿在其位于凹槽两侧的侧面设置有朝凹槽伸出的凸起，每个凸起上设置有永磁体，且每个定子齿两侧面设置的两永磁体极性相同，相邻两齿的永磁体极性相反。本发明的电机在低速时，直流绕组中电流为正，可以增强总励磁磁场，提高电机过载能力；在高速时直流绕组中电流为负，可以减弱总励磁磁场，提高电机弱磁能力。本发明的励磁电机的永磁体不可逆退磁风险低、励磁磁场磁阻小、励磁绕组调磁能力强，同时又无需滑环和电刷，不会带来电火花等问题，运行可靠稳定。 The present invention discloses a hybrid excitation motor. The comprises a stator and a rotor which are coaxially sleeved with each other; grooves are formed in the inner wall of the stator which sleeves the rotor or the rotor which sleeves the stator along the circumferential direction of the inner wall; grooves are formed in the outer surface of the rotor which is sleeved with the stator or the stator which is sleeved with the rotor; a direct-current excitation winding and an alternating-current armature winding are arranged in the stator grooves; each stator tooth is provided with protrusions which protrude out from the corresponding groove and are located at side surfaces of two sides of the groove; each pro