CN1189928A

CN1189928A - Permanently excited transverse flux machine and method of producing the same

Info

Publication number: CN1189928A
Application number: CN96195258A
Authority: CN
Inventors: 沃尔夫冈·希尔
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-07-05
Filing date: 1996-07-03
Publication date: 1998-08-05
Anticipated expiration: 2016-07-03
Also published as: EP0836759A1; WO1997002643A1; DE19524543A1; DE19524543C2; CN1062387C

Abstract

The invention concerns a permanently excited transverse flux machine which requires only one permanent magnet segment per phase and per magnetic circuit. The magnetic flux generated by a permanent magnet segment (3) flows alternately through the soft-magnetic body on two conductor rings (7) of this transverse flux machine. The conductor rings (7) are disposed on different sides of the permanent magnet segment, the direction of flux in the permanent magnet segments corresponding to the direction of magnetic flux in the two air gaps through which said flux passes. Preferably, the rotor bodies (5) are disposed between two U-shaped halves of a split tape core wound in a square manner. The stator bodies (6) are also prefabricated from grain-oriented material as U-shaped split tape cores.

Description

Permanently excited transverse flux machine and manufacture method thereof

The present invention relates to a kind of manufacture method that meets claim 1 horizontal magneto as described in the preamble and this motor:

The rotor of known permanently excited transverse flux machine has a large amount of Hard Magnetics and soft magnetism section, and its processing and mounting cost are expensive.Manufacturing cost is owing to the structure of this precise part has improved, especially when still will realize jitter-free structure under high magnetic field intensity the time.

Task of the present invention is to provide a kind of permanently excited transverse flux machine and its manufacture method, and this method makes available a spot of material and production expenditure obtain a stable engine structure.

Above-mentioned task realizes by the described technical scheme of claim 1 to 6.According to the present invention, the magnetic line of force that is produced by permanent magnet segments alternately flows through the soft magnetic bodies of two conductor loops (Leiterring) of the not homonymy that is installed in magnet in the horizontal magneto, and magnetic line of force direction is consistent with magnetic line of force direction two air gaps that the magnetic line of force passes in the middle of it in the magnet.Magnet segment preferably is installed between two U-shaped half ones of disconnection of the ribbon core that the space is arranged that a square twines, and stator core is a U-loop shape iron core by the preprocessing of grain orientation material.

Total electric machine structure is because small different, simple in structurely demonstrates superiority with parts preprocessing, guaranteed the high stability of magnetic field active zone in the motor with a small amount of spending simultaneously, and especially it is for the defensive ability/resistance ability of the air gap power of vibration.

Describe the present invention below in conjunction with accompanying drawing in detail by means of embodiment.

Fig. 1 illustrates the longitudinal section of a horizontal magneto of three-phase permanent, and it is as the internal rotor with radial air gap magnetic flux.

Fig. 2 illustrates the cross section of 24 extremely horizontal magnetos on hatching I-I and II-II of Fig. 1.

Fig. 3 illustrates the longitudinal section of a horizontal magnetic motor of two-phase permanent magnetism, and it is as the internal rotor with axial air-gap magnetic flux.

The horizontal magneto 1 that Fig. 1 describes has three rotor disks 2, is integrated with permanent magnet 3 on it.Wherein the every phase of magnet only constitutes a ring, and magnetic line of force direction is consistent with magnetic line of force direction in the air gap 4 in the magnet.Magnet 3 is installed between two U-shaped soft magnetism rotor blocks 5, and it concentrates the magnetic line of force, and the density of line of magnetic force in the air gap is higher than in the magnet significantly like this.The magnetic circuit that is produced by magnet 3 alternately is connected with 6 of U-shaped soft magnetism stator bodies that axially are installed in rotor disk 2 left sides and the right when rotor rotation.In stator body 6 be along peripheral direction around the conductor loops 7 that constitutes by shape wire.The magnetic force of radial effect is compensated owing to two air gaps are set in two air gaps 4 of a magnetic circuit.The radial vibration of soft magnetism stator body 5 ends is because the Stability Design of conductor loops 7 and the garter spring 9 by a middle part bear radial effect power.In addition, the soft magnetism of rotor disk 2 and Hard

Magnetic part

3,5 are pasted mutually, and the annual disk of axially installing 10 guarantees mechanical stability, and guarantees that it is not affected by environment for magnet 3 coverings.In heterogeneous horizontal magneto the device of a plurality of same structures by bolt 11-in stagger the each other part of pole span-organize together of circumferencial direction.Here, form driven stationary part by the interior shell unit 12 of four same structures and the motor backplate 13 of two same structures.The rotor disk 2 of same structure inserts on one four corner angle axle 14.Axial outer end ball bearing 15 is arranged and between rotor disk rolling bearing 16 avoided radial vibration.

Fig. 2 illustrates the cross section on Fig. 1 hatching I-I and the II-II.Two 24 utmost point stator half 17a of, the b structure is identical and only round the configuration of staggering mutually on peripheral direction of a pole span.The quantity of the stator body 6 of each stator half one is corresponding to half of rotor number of poles.

For short axial arrangement length, the horizontal magneto 20 with axial air-gap shown in Figure 3 is recommended.Magnetic circuit configurations among Fig. 1 is rotated 90 °, material use of still remaining valid and the spending of little structural unit.In order to help the installation of motor, preferably by half 21a of of two same structures, b forms stator 21, each half one have again two different, the

stator case

22,23 of casting.U-shaped soft magnetism stator body 24 also preferably has two

iron cores

25,26, and the partial stator body 25 that is fixed in the internal stator shell 22 was located before rotor ring 29 axial restraints by

permanent magnet

27 and 28 preprocessings of U-shaped soft magnetism rotor block.The outer stator shell 23 that is assembling remaining partial stator body 26 at last axially locks with bearing 30.

Radial magnetic force line structure as shown in Figure 1 is such, and magnet 27 can be designed to bulk.Needn't be ground facing to the surface of air gap 31 now.Can be installed on back-up coat 34 assemblings of air gap side with it by the conductor loops 33 of strap bar 32 preprocessings.T shape rotor disk 35 also can be divided into a plurality of parts preprocessings, and does not constitute an integral body with rotating shaft.

Similarly, the modification structures of the conductor loops of rotation and fixing magnet and the external rotor structure is multi-form also can realize.

Claims

1. has conductor loops (7,33) permanently excited transverse flux machine (1,20), conductor loops is centered on by U-shaped soft magnetic bodies (6,26) on three sides, it is characterized in that, the permanent magnet (3 that is provided with one by one along circumferencial direction, 27) magnetic circuit of Xing Chenging is around different conductor loops (7,33), and each magnetic circuit only has a permanent magnet and two air gaps.

2. permanently excited transverse flux machine as claimed in claim 1 is characterized in that, the magnetic line of force direction unanimity in magnetic line of force direction in the permanent magnet (3,27) and air gap (4,31).

3. permanently excited transverse flux machine as claimed in claim 1 is characterized in that, permanent magnet (3,27) is installed between the identical U-shaped soft magnetic bodies (5,28) of structure.

4. permanently excited transverse flux machine as claimed in claim 1 is characterized in that, conductor loops (7,33) has gusset plate (8) or the back-up coat (34) that is made of non-conductive and non-magnetic material at them facing on the side of air gap (4,31).

5. permanently excited transverse flux machine according to any one of the preceding claims is characterized in that, each permanent magnet (3,27) be positioned between the middle part of U-shaped soft magnetic bodies (5,28), by air gap (4,31) two U-shaped bodies (5 that separate, 28) end alternately is installed in the U-shaped soft magnetic bodies (6,25 of installing around two conductor loops (7,33), 26) between the end, and two conductor loops (7,33) are positioned on two relative sides of permanent magnet (3,27).

6. make the method for permanently excited transverse flux machine with the conductor loops that is centered on from three sides by the U-shaped soft magnetic bodies, it is characterized in that, the mid portion of two U-shaped soft magnetic bodies is flattened on two pole-faces of permanent magnet, in an annulus location and fixing after, the U-shaped soft magnetic bodies of installing around conductor loops is affixed to annulus from two opposite flanks, and the part of annulus is arranged in the aperture of U-shaped soft magnetic bodies.

7. the manufacture method of horizontal magneto as claimed in claim 6 is characterized in that, permanent magnet is put into the space and the final location of an annular solid that is made of not magnetic conduction and non electrically conductive material with two smooth soft magnetic bodies thereon.

8. the manufacture method of horizontal magneto as claimed in claim 7 is characterized in that, adds adhesive and then stick a garter spring when putting into, and is used for stablizing that side of the parts of putting into it.

9. the manufacture method of horizontal magneto as claimed in claim 6, it is characterized in that, that alternately will rotate when polyphase machine is installed and fixing parts are placed on its terminal position, and electricity and the passive outer cover unit of magnetic and rotor unit are made of the chipless preprocessing unit that each parts is had same structure.

10. the manufacture method of horizontal magneto as claimed in claim 6, the annulus that it is characterized in that having Hard Magnetic and a soft magnetism section is by being contained in being bolted on the rotor disk in the space between active section of the magnetic.