CA2131603A1 - Rotor arrangement for an electrical machine - Google Patents

Abstract

ABSTRACT OF THE DISCLOSURE
A rotor arrangement for an electrical machine, specifically for a transversal flux machine. The rotor is in peripheral direction provided in alternating succession and in an annular arrangement with a plurality of polarized magnets and magnetizable collector elements.
In axial direction, the rotor features a rotor disk that can be secured to the rotor shaft and to which rotor disk the polarized magnets and the magnetizable collector elements are secured in a concentric annular arrangement.
For fastening, fasteners are employed which extend through the polarized magnets and are secured to the rotor disk or an axially spaced insulating ring element joined to the rotor disk.

Description

` -1 21~11 603 n~
~. ah~ lolL~
Wol~r~ An51æro~
o~g sr ~lo~rt ~ller . ~h~ lnv~nti~n con~rn~ a r~toY~ Arr~ny~ rQ~ an ul~ctrlcal macnln~, ~p~ci~ioally ~or a t~an~Yers~l ~lux m~chine, whero th~ rotor ~e~tur~ p~lph~ral ~lr~otion 5 a plur31ity ur polarl3~d magn~ an~ ma~n~ti~ab~e ssollQcto~ ~la~ant3, ln 4n ~lt~rnating ~equ~ Q and Annu~ rangemont, an~ whar~ the r~tor ~u~ r~ ln ~x$al ~l~ootlor~ G rotor dl~c ~ec to th~ ro'eor sh~r~t, cn whlch ~iak th~ polarl ~d ~agnRt~ ~nd t:ho ~nAgnetl~nblo 0 aoll~a4tor 21~nont6 ~re re~pec'clvely mount~d i~ a ~ono~ntrlc annular arx ang~nt .
J }l~ol~:or ~rr~ng~m~n~ ~or el~c~rlca~ ~achln~s ~rs know .' ln ~rariou~ d~lsns and ul~d, ~.~., in ~rnl~s~ r~
, ~ohihes whsre achL~ing a ~all pol~ pl~ch i~ ~Erequen~ly . 15 ds~lred, ~or in~taJlao ~ n ~o~im~n~ ording to , D~: 37 05 D83 C2 .
I~ rotor ~rr~g~n~J o~ l:h~ type, tn~ pOl~i mayn~ts ~r~ provided in alte~nAt~ng~ qusnce in a~n an~ul~r ~ n~emen'c ~rol2nd th~ ~gnotlz~blQ ~oll~c~or ~l~sn~B, whlch, a~ us~al, ar~ ~truatur~d o~ ~xl~Llly A' ~ ez~d lam~n~t~on~- Th~ r~sp~ vo ~nnlllar arr~n~aerlt~
. ~!lre ~aount~d ln ~ l~a~ion ~o a~ to ~o ~clally 1D5U1~tOd r~latl~ra ~o ~ch otll~r, ~03: ino~ance with th~ u~ 4 ialsul~tln~ ti~ par~.
nal-~ pol~ pitoh~ Ar~ d~ir~ in ouch rotor Arrang~ nt~, a fililgroa ro~or ~ UG'~ O ilsl o~taine~
~hlc2h tn ~ oY m~nu~turing i~ ~wu~nd.in~. For ~ne, th3re 1~ a m~qh~ all~ pre~i~o ~rr~ nt o~ com~orl~nt~
~ulx~. For ar~oth0r, the n~¢e~a~ abili~y Yn-~t b4 ~ur3d ~ woll. For ~hat pUXpO1~ 53 ~ombin~tlorJ~ o~ gluo ~1 ' ~.,.

~ 2~ 2t3~6~3 ~oin~ ~n~ meohanlcal ~oln ~ with eon~tx~lot~on el~mont~
b~lng u3ed, uch ~ ~lvet~, bolt~ And BcroW~.
~w~ng to 'ch~ con~triQt~d 4p~ t~on ln th~
ro~or ~rr~ngemerltr 5Uc~ scre~ ~ave ~o ~ar be~n ~ se~
5 through bor~ in th~ la~inatlon pa~k~to o~ Gol~ or ~l~m~nt~. Thl~ de~lgn, how~ver~ hao ~ov0d éo 1~
un~avorable ln ~r~ctio~ 3ino~ DUI;;h bol~ or ocr~w~ U~d 3 ~or mountlng cau~ dl8~an~e~.
Namely~ ~incl~ the ~orew~ which ~2Xt~ t~rough bor~
10 ln ~ ~lami~at~d) coll~ctor elem~r;t~ natu~a~lly ~r~ no~
cod, th~ ~v~ll~l~ cros~ ~otlon o~ th~ magne~ic rlUX extendin~ ln r~dial di~ec~ 0atly constristo~. A~ a ~e~ul~, ~aturatlon ocour~ al~a~y with o~ll ~gnatiC ~lUX~. The magnot~ r~ve~ t~
1~ ot711ec'cor element~ ~e~era~ çd~y cur~nt~ in th~ sarew~, ~hl¢l~ with ~hq r~ ed ~gn~tio r~V~A~ ær~q~en~;:ie~
to corlol~ nagn~tio r~3ver~al lo~e3 and c~tlxe~
de31r~blQ h~a1: b~l11dup Is~ roto~.
~he ~nventional I~Oll~tlOh prCaYiC~ ll a rotor az~rang~ent ~o~ ~n ~lectrlcal ~a¢hln~ $n which ~ch m~n~ti~ r~ver~Al loo~ h th~ r~Ultlng h~at bu~ldup ln ~he ro or ar~ avolde~
~h4 i~Yonti~n~l ~olutlon ~all~ ~r ga~hionlng z5 rotor arran~ nt o~ ~he init~lly n~m~d typo in ~h w~y th~t th~ ntlng will ~e e~ected u~ing ~ n~r~ :
whlch ~xtend through P,he ~ol~r~Q~ ~gn~to e~ r~
r~d re~pe~tl~ y l;o t~ rotor dl~k or 2 ~axim~lly ~pacad in~ul~t.lng annular ~ler~nt ~ oi~d to ~h~ rot~r dls~s.
~h~ prcbl~ ~ ~301~ to o~ti~ a~ n wi~h t~
in~ lon~l ro~r axran~m~n~. Slnc:e t~ Past~nor~
~xt~nd ~oug~ th~ ;?olari~d m~gnet~ no m gne~i~
r~v~al t~ plac4 on th~. In ~diti~h, thQ A~ blç
3~ cro~ on ln ~ oll~cto~ elQment~ i3 not ~dua~d or lmpalred.

,l.j -3- '~131~03 An aavanc~nt o:e ~h~ v~nklon~l ~ol;o~ ~:c~n~ an~ -c~ fox prov~dlng tho pol~riz~CI magn~t~ wl~h ~xlal throu~h bo~ or arrangl n~ th~m pai2~d ln reldlcll dir~ctior~ and ~e-p~rs.ted by a gap through whl~h ext~nds 'Ch~ 6h2nks o~ tho ~a~t~ners. ~Qmpon~n~ o~ ~t typ~ ~ra ~a~y o re~l~æ~ ln te~m~ 0~ manu4acsu~1nsl while nonetheless enabl~ a rel$abl6~ ~oun'clng w~th nonpo~i~;lv~
oint~ .
A 83; sci~ic d~ n o~ th~ ~oto~ c~118 ~or p~o~,ridirlg th¢ in4ulatlng ~nnul~r ~ 3nt and ~.X~ ally axt~
'eerm~nal ~ing e~ w$th ~ ce~e~ ror~ir,g ~utm~nts ror tn3 head~ of t~e P~tan~ra. q!hlsj el,llo~
aompwt, smoo~h ~a~l~n o~ 3 rot4r. ~iv~t~, ~olt~ and ¢~peal~lly ~crews ~r~ ~ulta~l~ Pc~r u~ æa~t~n~
A ~po~ifla ~Jl~n of th~ re~or re~uir~ tha re~pas~ inaulatln~ ~le~n~ ~nd/or tho ro~o~ X or prostld~l t~ wlth thre~ I ln~rt~ ~or ~ece~rin~ ~crews~
Dapen~lng on tne gpeai~lc ro~or do~gn an~ th~
num~er o~ ~nnular arr~ngem~n~s ~xi~lng in axl~l ao dl2~ctlon, ~r~vl~ion~ ar~ ~:o ol~p tha c~ t~r el~a~n~
ln ~xl~l dl~o~tlon ~etWeell t~ rotor diok and an in3ulat$n~ ~lemE~ a~ ~tw~Qn ~ po.~r J~ ln Ulatlng rlng ola~mt~ or l:~tw~en an in~ula~n~ rlnq~ n~ ~nd ~x1411y out~r t~inal ring ~l~montO ~n~ ~or arI~ngin~
ag tho ~oll~a~or el~ento in ~or~hQ~ dlr~ n ~ot~e~n th~ i!a~t~n~r~
~ he ~o~ to:r ~le~ont~ in ~h~ lmr~n~lon~l r~t~x~ a~
Isu~kably ~a~b.ion~l as l~m~nated so~t ixor~ com~onent~
l~yered ln the aacial dlre~t~on o~ ~ha ro~-Jr. T~6~
~0 in~ul~ing xlng el~ment~ pr~erably ~on~ o~ plaotio ~a~rl~ and ~Inay b~ h~cnod a~ ~ompl~te C:lrCl~:9 or olroul~:~ s~ nt~, w~lch ~a~lita~s ~he manu~actur~ o~
tho~e aom~on~nt~.
An Advan~ ent o$ th~ lnventional ~otQr provid~c for 35 ~on~ctin~ th~ compc~non~ o~ th~ rotc~r ~rr~ngement :., ?,.~ 5, ~ . . ~ ' ' , , !
~' r-'4~ 2~!31gO3 ~ddltlon~lly by wz~y o~ ~luz3 ~oint3 an~/o~ ~orm- ittlng p~rt~.
~In a ~p~cl~i~ d~sign o~ th~ ~nv-snt:iohzll rvtor, 'J prov islon~ are ~o~ rrang~n~ to ~ea~ure ln ~xlal f~ 5 ~lroct~on a roto~ dl~k arranged 1" the oe~ r ~n~
c~n~i~t~ng Or non~gn~t~z~blQ ma~rlal, u~ tO ~eAtur4 o~
both 81~ at lea~ one annular ~ ny~m~ wlth :3 a~cern~tlng ~olloc~o~ ele~ent and polar~zea m~gn~e~ th~3 armular arrarlg~ment~ ~eing on ~ ~e ~l~e o~$se'c by ona pol4, in p4ri~al Rir2ction, relatiYa t~ th~ao ar~o.ng~d on th~ oppo61t~ side, whilo th~ ~a~t~ner~ ar~ prçvlded altcl,~natel~y fr~m ~hQ two ~id~ o~ th~ rol:or, o~ t by one pole. ~:
An n~van~nent o~ such a ~otc~ ~quiz~e t~o ~ten~r~, ln ~n ar~ang~ht with two ~nntlla~
r~ang~ nt~ on both ~ide~ os~ the rotor ~l~oX, to ~cure the ~ially ~nn~r pol8ris~ mAgr.~ts ~nd thQ ln~ tl~
mt3nts to th~ rotor ai~x ~lt~rn~t~ly ~n p~lph0~a ~ix~ctl~n, whilo ~ecuring t~e AXi~lly out~r l?olarizod ~:
magnets ~nd th~ ~xlally o~r tor~lnal ring ~lement~ t~
th~ ln~ula~ r~ ng ~la~nt .
creatQd tho~eby i~ an ~xt~nYiv~ly ~ xio ~r~ang~snent w~th tn~ ~a~ten2r3 even~y di~trlb~lt~d ln 'ehe rotor ~rrang~ment. ~or ln~t~n~, ln pl~n ~ia~, evary a5 o~h~r polo.ri~s~ magnet or ~v3ry ~0cond pair Or pol~ e~
:~agn~t~ u~d w~th ~As~ner8 ~o th~ rotor ~rrGn~ nt-p. ~pocl~ eelgn ~ th~ lnvQn~iorl~l rotor providQ~
:~ :Eo:c the ~ t~n~x~ ~o ext~nd th~ou~h At 1~0.5t; ~WO axial~y ~uco~a~ annulAr a~rar2g2~n~ pas~ny ~hro~gh th~
.3 pol~ri~d ~nagr~et~ And ~h ~lzul~ing ~n~ nt ~hat 1E~ ln~ oecd ~xl~lly, ~n~ ~or ~l~ctr~c~lly ln~ula~:ln~
th~ ~a~tene~r~ in p~rit~haral ~lrootlon ~lati~e to ona n~thor. ~ho ~Jt~n3rs on th~ on~ 1d~ att~ch to A
3 J t~r~inal ring ~lement and on the ot!hor ~ur~ to th~
rnt~ k, .

i~

:: ~
s : . .. , :

2~31~Q3 A ~ur~cr e~ n~ent ~ th~ lmr~ntion~l ~o~o~
pro~ld~ ~or insulatlng t~3e 4~ n~r~ el~otri~ally ~qalnat ono ~no~er as wall a~ in~ F~lQri~
m~gnets and ~he collocr:or ~l~m~3nt8.
The lnv~ntlon will b~ more ~ully ~xplairl~
h~o~ r, a~o w~th ragard ~o ~urth~r ~Atur~ ana advanta~e, wit~ l:h~: aid Or tne d~or~ptlorl oP
~odi~0n~cs and wlth r~erenc~ ~o t~o attach~ ~rawin~, ~hor~ln: :
FL~ a sectlon ~o~3~3h ~ ~r~t ~odiment o~ an in~entio~ o~or ~ ng~nent along lin ^B ~n ~lg- 2 Fig. 2 i~ 3ctlon through th~ Sirst e~Dbodl~snt o~
th~ inv~ntlonel rotor ~rang~Dent along l~na A~
1~ ~Lg. 1J
~ig. 3 1~ ctl~n througn ~ s~cond ~mbod~memt o~
~n ln~vontlonal ro~o~ arr~ 3o~n~nt ~long line ~ in ~g. ~;
Pig. 4 i8 ~11 8~bctl0n throu~21 t~e ~econd ~ ont o~
th~ ~n~n~lonal ~otor ~rrang~n~ o~ C~C J n Fig. 3:
Fig. 5 16 a ~¢tlona~ lr$~v o~ ~ ~onventlon~l dl~ign o~ ~ rotor ar~ng~ae~n~ ~k~n along~ lln~ E irl ~g. ~;
an~ :
~g. 6 1~ e~ tlon th~ough a ~onven~ion~l roto~
ar~gem~nt alon~ lin4 F~-F ~a~ Fig. ~.

The cverall ~it~atlon ~ h i~ con~ren~lcnal ~ n o~
~ rotox arrang~ent i~ ~che~na'ci~ally lllu~r~ted in Flg3. 5 and 6. ~. 5 3how6 a cl~cola~ ~æ~lon c~ 4 rot~r 10 ~eaturing '~n l~rl;phhral direotlon a pl~ llty o~
pol~rized ma~ to 12 ~n~ IRAgn~iz~ oll~tor ::
~sm~n~ 14 whioh ~r~ provid~d ~lttarna~ly in Ul Annul~r ~rranoo~nt. ~llsod by t~a~ nun~r o~ polarizc~d 3~ ~Ag~ta ~.2 ~nd m~gln~tlzablQ collo~;tox e30at~nt5 1~ ig th~
p~l~ plto~ de~Lrl3d in ~Uch xot~r arr~ng~nk~.

..

i ;
; ~

...,. : ~,.: ~.
. ,~... ,,,,, :. .
t.~

J 2~3~03 In th~ ombo~ en~, every oth~r CDll~oto~ ont 14 i5 p~oYa~ed with ~ ~ch~m~tio~lly lnalcated hole 16 rving to ~ccom~no~ate a ~a3ten~r, 8~ o en~ure t~a nsco~sary ~irm m~c~nl~l cosm~c~ion o~ the c~on~ng-~ o~
~ho t~otcr arrangement.
3, The ~ounting ln ~ ~onv~ntLon~l ~e~$gn OP 'Ch~ r~or J, ~rr~ngement 18 i~lu~tr~t~d ln Fig. 6, ~ho~lng a cro~3 ~e~ci~n through t~ rotor 10. ~ ro~r dlsk 1~ ~atuxoo :, ~n ~rea whlch pro~crude~ r~lally islw~rd ~n~ is seauredl to th~ rotor ~h~t ~lt~ RUlt Q ~3'cenOE, not sh~ h~
geometrio ~xi~ o~ the rot~ arrAng0~ent i~ r~r~nc~d 30.
~n thlo con~r~ntlon~l d~ a~ten~r~ 2~ ~tta~h, ~or on~, to an Ln~ul~ting rin~ olemer~t 26, ~xtond throu~h a o~lleotor elBment 14 and ~nga~ the perip~eral ~sea o kh~ x~tor disk 180 ~h~a ln3ul~tirlg ~ing elemen~ 26 also ro~c~ln~ th2 polarized ~agn~ats ~itua~sld in pe~lpl~aral dirw~on b~ldo the aollecto~ em~nt 14, ~orc:in~ ~he~
~xl~l ~galn~c th~ roto~ dl0k 18 . ~ tua~ed Axil.411y o;.;t~id~, on th~ l~tt-h~nd 6~lâe of ~hi~ oonv~ntlonal ao ~rrangement, is ~ c~llec~or al~nt 14 ~oYe~ed ~y a tsrminal ~ ele~nt 2~ a~t~nlng o~ th~s~ ~xi~ly outer compcnent~ is illu~r~tsd in ~h~ righ'C-hand arQa o~
th~ ar~angement ~Gor~lnq to Fig . ~ .
sto ~h~t th~ ~a~t~n~r~ aa on ~ t hand 3id~ of th~ rotor ~r~ng~nt Ar~ p~riph~rally o~ bs~ on~
coll~a~r ele~t ~ or~por~ding t~ und~r~id~ in th0 illuotr~tion aGc~rding to ~ig. 5. In oth~r wo~de, ~he ~a,e,~,t,~,ner"l ~a,~ are lr~ x~ lternat~,1y ~rom th~ t,c,p ~ bo~toln ,~,id,a o~ r~e,to,x ln ~he r~ ,ec~lv~ y~r c~' th~, Annulaz~ ngement. In thi,~, ,.. ,on~en~ional ~r2nge~nt o~ th~, fA,~,t,~,n,~e,r3 a2 ~'~ah~on~d A'f BOr'aWIEI
,nding through ~h,~ collector ~le~,ent~ 14, th,~r,~, occur th~, inltially deecrlbed probl,~r,~ h~,s, Aver,lla~lo, ,~roe,~"~", ~O~r~tin31 5~' ~h,e, ~f~iA11y ,~xtendlng m~g~nQti,., flux i~
35 he~Ylly conatriot2,~, and ,~ddy ~urY~ent~, Ar~ gene~,~t~ by m"l,~nQ~ ro,ver~s"~ n the s,cr~w~, u3e,~ ~o ~'~s~f~Qr~, a a, .
,~

., I ~, X~3~3 ~nt~lling e~stremRly undQ~lrQ~l~ heat bu~ldupo ~n thG
~otor, ~inee ~3uch t~oken~re~ 22 ar~ ~iotr~but~d in the ro~o~ ln a ~rQat plurallty.
~ig~. 1 and a o~ th~ drawln~ show a fir~t 3 ~r~bodlDIent o~ th~ inve3~lkional :rotor ~rremge~m~n~. In :
Fly. 1, 2~ ~o~or O,i~k ~8 1B ~cured wi~h ~ulta~lo ~3~t~nar~, not ~hown, to th~ ~ot~r oh~t, w~lcn 13 . -~-indlca~d ~ohe~lcally ~nd re~r~n~a~ 30. Ao c~n 1~
~n ~ aetf3nor~ ~o nLot. ~xt~n4, tnro~gh ~ ~ .
0 ~0114~atc~r ele~en'c~ 14i in~t~ad, th~ collecto~ men~0 14 .
are ~tru~tur~d ~om~geno~u~ly a~ ~r~ iron p~ o~
a~ y lAyelre~CI lamlnatlon~ arld ~ar~ o~
another in ~x1al dir~ ion by ~n insul~t~r~g ring a~.
Corr~opondlng e~mlnal ring el~mant~ ~ 8 ~ o~ con~ t o~
nonmagnG~lzablo ~a~t~rl~ re provided on th0 axiAlly outo~ 0ide.
A~ rAte~ lg. 1, ~he pol~riz~d m~ ts 1 ~nd 1~ a~e in 'chi~ ca~ pa~a~d ~r~m ~h oth~t~ ln r~di~l ~lr~t~on by ~ ga~ 32. ~p 32 pro~vide~ a condult aD ~or th~ ~'nank Or ~ t~rle~ 2~ d 24 o~ ~a~n~r a2 n~ay~ an ~n-lllat~1ng rirlg ~lam~nt 26 ~n a ro~o~ 3~ ~nc~
i~ ~¢r~0~ into th~ mat~rial o ~h~ r~tor ~1B)C 1~ . For tha~ puxpoo~, thread~ ~re cut lrl the roto~ ~ek 18 ~r throa~d inEt~r~fi ar4 ~itt~d in/ pr~er~ly in ~ot~tlonA11y rix~d ~hion, to ao~c~Doda~ ~cre~d~ su~h ~a3~n~r~ a~ 4~ ~our~a, ~ an ~ltern~l;lv~ to ~r~w~, o o~ rlve~ i~y b~ u~d ~ w~
blo on tha r~ght-~an~ ~ld~ o~ thQ ro~or ~rr~ng~nt ~cording to Fi~. ~, anot:h~r ~xlally outsld~
~lr ~ ra~lall~ ~p~ced pola~ d Tla~net~ 12~ and lab Ls ~eparat~d ~om ~ach other by ~ q~p a2 ~n~ ~ov~red on ~he ~ut~ y ~ ~3r~1n~1 rlng~ Ql~men~ aB. SUCh Qxially outer rln~ e~emen~s 2~ d pol~ agn~ lab ~a~e Ynounta~ g ~p~:roprl~q ~a~t~n~ which, howbvor, ~5 ~re porlph~rally 0~6et, suitably ~y ~u~h a pal r o~

2 ~ Q 3 , ~ .
,...` :-' ~ol~ od ~ , an~ ~n~a~0 th0 ~xlally bor~e~ln~
~n~ulating r~ng ~ ent.
~r cour~e, ~oe ~ t~ner~ ~ may ~eQ b~l dis~ri~ut~d p~ripher~lly at a gr~at~r s~cin0, ~ro~la~d S ~he re~ulred ~t~ ity o~ 1:ha r~tor ar~ ge~an'e r~a~n~
~Isnu~d. Yor th~t pu~o~, e.g., additionsl glu~ joint~
ar~or po~ltlv~ ~oints o~ ~e~hlng part~ o~ th~ co~pone~
Qk! 1:~4 r~7tor ~ra~g~ment ~ay ba ~ploy~
For t}l~ ~ak~ o:~ple~-n~ also po~ ntl~d oy~
th~t the t~r~in~l rlng el~m~nt~ ~8, tho rol;o~ k 1~ a~d a~t~n~s 22 oon~ o~ nonma~tl~ Ra~ial Bl~
a~ 'co provi~e for exactl~ defin~d ~agno~G oondition~
the ro~or arrango~nent.
W~ ln th0 ~mbodim3nt accordlng to ~ n~
pol~ri2~d ~ t~ 12A ~n~ 12b a~ ~epa~a~ed ~rom o~h o~hor ln rnd~al ~ra~tion b~ ~ gap 32, i~ 13 ~lao go~lbL~ to u~o ~uit~bly ~hap~d polarlzed ~nagn4t~ ~
~aa~urlng ~:K4aliy ext&ndlng ~h~ough ~oar~ to ~caomm~te the ~p~tiv~ f~t~nars 2~.
zO ~rh~ rokor arrang~inent ~ ur~o ~t 1~ two ~nnular nq~ffln~ o~ pol~rl2ed in gnet~ ~n~ magna~s~l~
~olle~or 41erssnt~. ~6 lllu~t~at~ ch~ati~lly in the zlrrango~nent J~ccor~ing to Pi g. 1, ~nu~ ~uoh ~nn~lar ~rr~ns~ement~ ar4 uDually u~e~. Nata~ally, i~ ~s ~l~o po~olbla to u~e a grea~e~ nu~ o~ au~h ~nrlul~r ~rran~en~nt~ ~n 3x~1 dlr~c:kion~ ~or ill3tanC8 E~iX, oi~
~rhich ~U1~a~ly thr~ ar~ pro~ od on ~c;~ o~ ~he ~otor 4il~1X lB and ~eparat~d ~ronl on~ anoth~r by app~opa~ 'ce in~ulat~ng rlng el~Qents ~.
~n th~ CQ~ a o:t ~u~4 ~ desiqn th~ p~r~ o~ polnrl~
~a~ne~ 12a, 12b, c~r pol~r~e~ ~4AS~leltE~ 12 wil:h th~su~h boro~, ~re th~3n aeaur~ in th~ re~ootiv4 ~x~ nt~
po~itlon ln su~h a w~r ~hat ~h~ f~ten~rs ~2 clamp ~:h~e polslr~ ~d m~g~ts ~n pla~e b~tw~n a p~i:r o~ ~n~ul~lkin~ I
3~ rlng ~ n~3nt~ 2~ amQ Appll~ wn~n optirlg ~æ a ,J
rotor ~rr~ngem nt with ~ight annular arran~e~entql, wb~lc:h 2~3~3 ~9 ui~bly provl~ trlG~lly on bath ~l~e~ o~ t}a~
~otor disk 18. ~ t~n~l in~41a~ing ring el~nt~ ar4 ~en u~ed, which in khe ~nrer d~crlb~d al30vo ~o~e to ~eeur~ the magnotl~ collector ol~m~nt~ arl~ th~
5 pol~riz~ Ina~ts, employ~ng ~ inclpl~ ~e~02~ d a~ov~
Flqs. 3 and 4 ~ho~r a ~ooon~ 2R~1ment o~ the inventional rot~ rrarlgem4nt, r~rencin~ n'610z~1 p~es the aa~e a~ in E'1~7~. 1 And 2. ~n ~ ~odl~nt, 1~ the ~a~ cr4 22 ~re or a through-go~n;~ d~ulgn, c~U~;h that ~n th~ arrang~m~nt Ao~ordir~g ~o Plg. 3 t~y ~ nd throug2s ~wo aa~ially ~u~oessive ~nnular ~rrAn~ont~ ~0 ~sten~r~ 22 ~xt0n~ ~ough ~h ~ ~lr~t ~r o~ :
2~gn~ 2~ and a ~0cond ~alr o~ ~agnot~ 12a an~
15 w~ x~ rad1 ~11y epao~a. A~ tne ea~ t~m~
~'concr~ 22 ~xtend through ~n ino~ t$ng rlng ~le~ent ~6, whl~h lrl ~hl~ ca~ p4~6e~ nerely a ~ :
cyllnde~h~ped throu~h bor~ Allern~tl~rely~ ~ alr~dy 30n~1On~d, ~agnet~ ~eaturln~ an approprlak~ o~agh boro 20 ror ~he ~ast~n~ a~ D~ay bo u~e~ ~ w~ ln~oad o~ tho:
pellr~ of ~gn~t4 ~ta~ 12~.
In 1;hl8 ~nbo~i~en~ ~o~rdln~ to Flg~. 3 an~ ~, th~
~a~to~or~, wh~ ultably m~y ~o ~hion~ r~wo, ~nga~ with th~ir h~ado ~4 th~ tor~lnal rlng ~ nent a8 ;25 whil~ on ~hei~ ot2~er ond~ ~oln ~o ~ho roto~ dl~k 18, ror inat~n¢la Wi~ ~aohined. ~hr~ading~ or i.n~ert~d ~eaded Y~, a~ ~lr~ady lllu~trat~d abov4. ~ho t~rmlnal ring ol~ma~t~ ~8 ~nd tha ~ompon~t~ of the ~otor ~rrang~m~n~c~
r~talned by th~ ta~min~l rln~ ontl~ 2 B are 1 30 ga~hi~n nonpoE~ ely ~olned ~o ~he ro~or di~
~ h0 do~lgn o~ the ~4t~r ~relng~m~n~ 071tn ~. n~le-ce or ~h~ough-~in~ ~a~tener~ in th~a ~orm oP ~ar~w~, ~olt~ or rlv~s, both ~impl~Pi~ tho :4~nura~tur~ o~ th~
compon--nte a~ a~ r~llltat2~ the a6ee~1y o~ ~ah 3~ ro~or a~rang~m~n~ as ~ X par~ o~ ~a ~ a~s~obl~d.

-10~

It 1~ ~mpo~nt in thi~ con'cext, how~rQ~
~a~teners 2~ in ~ho ~or~ o~ ~rew~, bclt~ or ~ivet~ a~o in p~rlph~ral ~lrQc~ion o~c rically in~ul~d ~rom on~
~nother ~nd ~ul~iy also ~ro~ tn~ po~arlz~d Taagne~ la, la~, ~z~ a~ w~ll a~ th0 collecto~ Ql~nt~ ~. Fo~ that pur~o3e, in~ul~ln~ co~t~ or pla~tic ~lee~o~ y b~ u~d ~or th~ ~a~l:e;ler3. In~ulating 3~a~ar~1 or a'c l~
insulat~ng aoat~ ~y be ~d ~o;r lth~t ~U~084 lil~ 0 ~r ' th~ ter~ln~l ring ~l~men~6 ~8 ~nd ~ho roto~r dl~k 113-

Claims (26)

WHAT IS CLAIMED IS:

1. A rotor arrangement for an electrical machine such as a transversal flux machine comprising:
a rotor shaft;
a rotor including in axial direction a rotor disk mountable on said rotor shaft, said rotor further including a plurality of polarized magnets and a plurality of magnetizable collector elements;
wherein said polarized magnets and said magnetizable collector elements are situated in alternating succession in peripheral directions and in a circular arrangement;
and means for securing said polarized magnets and said magnetizable collector elements to said rotor disk in a concentric annular arrangement, wherein said securing means comprises fasteners extending through said polarized magnets and secured to said rotor disk.

2. The rotor arrangement of claim 1 wherein said fasteners comprise shanks, and wherein said polarized magnets comprise axial through bores through which extend said shanks of said fasteners.

3. The rotor arrangement of claim 1 wherein said fasteners comprise shanks, wherein said polarized magnets are in radial direction arranged in pairs of magnets including first and second magnets, wherein each said first magnet is separated from its paired second magnet by a gap, and wherein said shanks of said fasteners extend through said gaps.

4. The rotor arrangement of claim 1 wherein said fasteners comprise heads, and wherein said rotor arrangement further comprises insulating ring elements including axial recesses forming abutments for said heads of said fasteners.

5. The rotor arrangement of claim 1 wherein said fasteners comprise screws.

6. The rotor arrangement of claim 5 wherein said rotor disk comprises threaded means for accommodating said screws.

7. The rotor arrangement of claim 1 wherein said fasteners comprise bolts or rivets.

8. The rotor arrangement of claim 1 further comprising an insulating ring element, wherein said collector elements are in axial direction clamped between said rotor disk and said insulating ring element, and wherein said collector elements are in peripheral direction arranged between said fasteners.

9. The rotor arrangement of claim 1 further comprising first and second insulating ring elements, wherein said collector elements are in axial direction clamped between said first and second insulating ring elements.

10. The rotor arrangement of claim 1 further comprising an insulating ring element and an axially outer terminal ring element, wherein said collector elements are in axial direction clamped between said insulating ring element and said axially outer terminal ring element.

11. The rotor arrangement of claim 1 wherein said collector elements comprise laminated soft iron parts layered in axial direction.

12. The rotor arrangement of claim 1 wherein said securing means additionally comprises glued joints.

13. The rotor arrangement of claim 1 wherein said securing means additionally comprises positively meshing parts.

14. The rotor arrangement of claim 1 wherein said rotor disk comprises a nonmagnetizable material and first and second axial sides, wherein said rotor disk is centrally arranged in axial direction and includes on each of said first axial side and said second axial side at least one annular arrangement with alternating said collector elements and said polarized magnets, wherein said at least one annular arrangement on said first side is offset in peripheral direction by one pole relative to said at least one annular arrangement arranged on said second side, and wherein said fasteners are alternately provided, offset by one pole each, from said first side and said second side of said rotor disk.

15. The rotor arrangement of claim 14 wherein said at least one annular arrangement on said rotor disk first side and said at least one annular arrangement on said rotor disk second side each comprise an axially inner annular arrangement and an axially outer annular arrangement, wherein the rotor arrangement additionally includes insulating ring elements between said axially inner and axially outer annular arrangements and terminal ring elements axially outward of said axially outer annular arrangements, wherein said securing means further comprises fasteners extending through said axially outer polarized magnets and secured to said insulating ring elements, wherein said fasteners securing said axially inner polarized magnets and said insulating ring elements to said rotor disk are alternately disposed in peripheral direction with said fasteners securing said axially outer polarized magnets and said axially outer terminal ring elements to said insulating ring elements.

16. The rotor arrangement of claim 1 comprising a plurality of axially successive annular arrangements of alternating collector elements and polarized magnets, the rotor arrangement additionally comprising and insulating element interposed in axial direction between axially successive annular arrangements, wherein said fasteners extend through polarized magnets of at least two of said axially successive annular arrangements and at least one interposed insulating element, wherein each said fastener is attachable at one end to a terminal ring element and securable at the other end to said rotor disk, and wherein each of said fasteners is peripherally insulated electrically from the other of said fasteners.

17. The rotor arrangement of claim 1 wherein each of said fasteners is electrically insulated from the other of said fasteners as well as form said polarized magnets and from said collector elements.

18. A rotor arrangement for an electrical machine such as a transversal flux machine comprising:
a rotor shaft;
a rotor including in axial direction a rotor disk mountable on said rotor shaft, said rotor further including a plurality of polarized magnets and a plurality of magnetizable collector elements;
wherein said polarized magnets and said magnetizable collector elements are situated in alternating succession in peripheral directions and in a circular arrangement;
an axially spaced insulating ring element joined to said rotor disk; and means for securing said polarized magnets and said magnetizable collector elements to said rotor disk in a concentric annular arrangement, wherein said securing means comprises fasteners extending through said polarized magnets and secured to said rotor disk or to said axially spaced insulating ring element.

19. The rotor arrangement of claim 18 wherein said fasteners comprise shanks, and wherein said polarized magnets comprise axial through bores through which extend said shanks of said fasteners.

20. The rotor arrangement of claim 18 wherein said fasteners comprise shanks, wherein said polarized magnets are in radial direction arranged in pairs of magnets including first and second magnets, wherein each said first magnet is separated from its paired second magnet by a gap, and wherein said shanks of said fasteners extend through said gaps.

21. The rotor arrangement of claim 18 wherein said fasteners comprise heads, and wherein said rotor arrangement further comprises an axially outer terminal ring element, said insulating ring element and axially outer terminal ring element including axial recesses forming abutments for said heads of said fasteners.

22. The rotor arrangement of claim 18 further comprising a second insulating ring element, wherein said collector elements are in axial direction clamped between said axially spaced insulating ring element and said second insulating ring element, and wherein said collector elements are in peripheral direction arranged between said fasteners.

23. The rotor arrangement of claim 18 further comprising an axially outer terminal ring element, wherein said collector elements are in axial direction clamped between said insulating ring element and said axially outer terminal ring element, and wherein said collector elements are in peripheral direction arranged between said fasteners.

24. The rotor arrangement of claim 18 wherein said fasteners comprise screws, and wherein said insulating ring element comprises threaded means for accommodating said screws.

25. The rotor arrangement of claim 18 wherein said insulating element consists of plastic material.

26. A rotor arrangement for an electrical machine, specifically for a transversal flux machine, wherein the rotor features in peripheral direction a plurality of polarized magnets and magnetizable collector elements in alternating succession in a circular arrangement, and where the rotor features in axial direction a rotor disk mountable on the rotor shaft, to which rotor disk the polarized magnets and the magnetizable collector elements are secured in a concentric annular arrangement, wherein the improvement comprises;
a fastening by means of fasteners is provided for which extend through the polarized magnets and are secured to the rotor disk or an axially spaced insulating ring element joined to the rotor disk.