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1. WO2020001552 - ROTARY TRANSFORMER

Publication Number WO/2020/001552
Publication Date 02.01.2020
International Application No. PCT/CN2019/093345
International Filing Date 27.06.2019
IPC
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
K
DYNAMO-ELECTRIC MACHINES
24
Machines adapted for the instantaneous transmission or reception of the angular displacement of rotating parts, e.g. synchro, selsyn
G PHYSICS
01
MEASURING; TESTING
D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5
Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12
using electric or magnetic means
14
influencing the magnitude of a current or voltage
20
by varying inductance, e.g. by a movable armature
H02K 24/00 (2006.01)
G01D 5/20 (2006.01)
CPC
G01D 5/20
H02K 24/00
Applicants
  • 广东威灵汽车部件有限公司 GUANGDONG WELLING AUTO PARTS CO., LTD. [CN/CN]; 中国广东省佛山市 顺德区北滘镇北滘居委会工业园港前路21号1号楼 Building No.1, No.21 Gangqian Road, Beijiao Residential Council Industrial Park, Beijiao, Shunde Foshan, Guangdong 528311, CN
Inventors
  • 葛笑 GE, Xiao; CN
  • 万佳 WAN, Jia; CN
Agents
  • 北京友联知识产权代理事务所(普通合伙) YOULINK INTELLECTUAL PROPERTY LAW FIRM; 中国北京市 海淀区学清路8号科技财富中心A座506室尚志峰 SHANG, Zhifeng, Room 506 Tower A, Technology Fortune Center No. 8 Xueqing Road, Haidian District Beijing 100192, CN
Priority Data
201810700480.029.06.2018CN
201821022202.629.06.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) ROTARY TRANSFORMER
(FR) TRANSFORMATEUR ROTATIF
(ZH) 旋转式变压器
Abstract
(EN)
Provided by the present application is a rotary transformer, comprising: a stator, including a stator core and an input winding and an output winding wound around the stator core; a plurality of stator slots are formed on the inner side wall of the stator core, and the plurality of stator slots are distributed in a circumferential direction and respectively cause two ends of the stator core to be connected so that stator teeth are formed between any two adjacent stator slots to respectively wind the input winding and the output winding; a rotor, including a rotor core; an air gap is defined between the inner side wall of the stator core and the outer side wall of the rotor core; when the rotor rotates, the length δ of the air gap, along the circumferential direction, and a mechanical rotation angle θ of the rotor satisfy a sinusoidal function relationship containing third-harmonic components, and periodic changes are performed according to the functional relationship to define the shape of the rotor core. According to the technical solution of the present application, the output signal amplitude and position measurement accuracy of the rotary transformer can be improved under the same maximum and minimum air gaps.
(FR)
La présente invention concerne un transformateur rotatif, comprenant : un stator, comprenant un noyau de stator et un enroulement d'entrée et un enroulement de sortie enroulés autour du noyau de stator ; une pluralité d'encoches de stator sont formées sur la paroi latérale interne du noyau de stator et la pluralité d'encoches de stator sont réparties dans une direction circonférentielle et provoquent respectivement le raccordement de deux extrémités du noyau de stator de telle sorte que des dents de stator soient formées entre deux encoches de stator adjacentes quelconques pour enrouler respectivement l'enroulement d'entrée et l'enroulement de sortie ; un rotor, comprenant un noyau de rotor ; un entrefer est défini entre la paroi latérale interne du noyau de stator et la paroi latérale externe du noyau de rotor ; lorsque le rotor tourne, la longueur (δ) de l'entrefer, dans la direction circonférentielle, et un angle de rotation mécanique (θ) du rotor satisfont une relation de fonction sinusoïdale contenant des composantes de troisième harmonique et des changements périodiques sont effectués en fonction de la relation fonctionnelle pour définir la forme du noyau de rotor. Selon la solution technique de la présente invention, l'amplitude du signal de sortie et la précision de mesure de position du transformateur rotatif peuvent être améliorées dans les mêmes entrefers maximum et minimum.
(ZH)
本申请提出了一种旋转式变压器,包括:定子,包括定子铁芯以及绕设在定子铁芯上的输入绕组与输出绕组,定子铁芯的内侧壁上开设多个定子槽,多个定子槽沿周向分布,并分别使定子铁芯的两个端面导通,使任意两个相邻的定子槽之间形成定子齿,以分别绕设输入绕组与输出绕组;转子,包括转子铁芯;其中,定子铁芯的内侧壁与转子铁芯的外侧壁之间限定出空气间隙,在转子旋转时,空气间隙的长度δ沿周向与转子的机械转角θ满足包含三次谐波分量的正弦函数关系,并根据函数关系执行周期性改变,以限定出转子铁芯的外形。通过本申请的技术方案,在相同最大和最小气隙的情况下,能够提高旋转式变压器的输出信号幅值和位置测量精度。
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