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2. 发明公开

EP4020780A1 MAGNETIC FLUX SWITCHING TYPE PERMANENT MAGNET GENERATOR 有权
公开(公告)号：EP4020780A1
公开(公告)日：2022-06-29
申请号：EP20216594.0
申请日：2020-12-22
申请人： Ventspils Augstskola , Latvo AS
发明人： BEZRUKOVS, Valerijs , BEZRUKOVS, Vladislavs , BEZRUKOVS, Deniss , KONUHOVA, Marina , BERZINS, Agris
IPC分类号： H02K35/06 , H02K21/44 , H02K41/03
摘要： The invention relates to AC electric machines with a movable magnetic flux switch and a fixed anchor with a permanent magnet and can be used as a generator, for example, for a bicycle and for powering low-power electronic devices. The technical problem solved by the present invention is to increase the specific power of the generator. The generator contains three groups of magnetic open-cores made of laminated silicon steel sheets. Each group includes two pairs of the magnetic open-cores, sections of the magnetic circuit of which contain parallel inner rods and outer rods. The magnetic flux switch is made in the form of a tape 25 made of non-magnetic material, magnetic flux toggle switches 26 made of laminated silicone steel are placed and fixed on said tape with a uniform step τ z . The magnetic open-cores, connected by a plate 5a of non-magnetic material, form the first section, and connected by a plate 5b of non-magnetic material, form a second section. The permanent magnets in the first section 11a, 12a, 13a, 14a have the same polarity, and the permanent magnets in the second section 11b, 12b, 13b, 14 have the opposite polarity. Wherein, in each group, the magnetic flux in the rods 1a, 1b, 2a, 2b, 15a, 15b, 16a, 16b, 17a, 17b, 18a, 18b is directed in one direction. Gaskets 19a, 19b, 20a, 20b, 21a, 21b, 22a, 22b made of steel are placed between all the permanent magnets of the first and second sections and the surfaces of the rods. The permanent magnets of the first and second sections are connected by bridges made of laminated silicone steel 27, 28, 29, 30. The free ends of the anchor windings 6a, 6b, 23a, 23b, 24a, 24b of all three groups are interconnected according to the connection scheme of the anchor windings of a three-phase electric machine.

3. 发明公开

EP3955439A1 MAGNETIC FLUX SWITCHING TYPE PERMANENT MAGNET GENERATOR 无效
公开(公告)号：EP3955439A1
公开(公告)日：2022-02-16
申请号：EP20191115.3
申请日：2020-08-14
申请人： Ventspils Augstskola , Latvo AS
发明人： BEZRUKOVS, Valerijs , BEZRUKOVS, Vladislavs , BEZRUKOVS, Deniss , KONUHOVA, Marina , BERZINS, Agris
IPC分类号： H02K21/44 , H02K35/06 , H02K41/03 , B62J6/12
摘要： The invention relates to the field of electrical engineering and can be used as a generator for bicycles. The technical task solved by the present invention is to increase the specific power of the permanent magnet generator by reducing the scattering flows. A magnetic flux switching type permanent magnet generator includes a magnetic flux switch connected to a drive and an inductor comprising four permanent magnets and two pairs of magnetic open cores having inner rods (3, 4, 7, 8) and outer rods (2, 5, 6, 9) with windings (10, 11), in the form of a tape (12) of magnetic flux switches with toggle switches (13), the two pairs of magnetic open-cores being arranged opposite each other on opposite sides of the switch tape (12). The teeth (14) of the rods are separated from the toggle switches (13) by air gaps - δ 1 and δ 2 . One end of the first magnetic bridge (20) rests on the surface of the first magnet (1) and one end of the second magnetic bridge (21) rests on the surface of the second magnet (17) with the same polarity, while the other end of the first magnetic bridge (20) rests on the third magnet (18) surface and the other end of the second magnetic bridge (21) rests on the surface of the fourth magnet (19) of opposite polarity, the free surface of the first magnet (1), the second magnet (17), the third magnet (18) and the fourth magnet (19) are pressed with the other polarity, respectively, on the side surface of the opposite outer magnetic rods (2, 6, 5, 9) through four metal gaskets (22, 23, 24, 25), the magnetic fluxes in each pair of magnetic open-cores in the adjacent inner rods (3, 4, 7, 8) are oriented in one direction.

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