PL146647B1 - Electric machine commutator - Google Patents

Electric machine commutator Download PDF

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Publication number
PL146647B1
PL146647B1 PL25396885A PL25396885A PL146647B1 PL 146647 B1 PL146647 B1 PL 146647B1 PL 25396885 A PL25396885 A PL 25396885A PL 25396885 A PL25396885 A PL 25396885A PL 146647 B1 PL146647 B1 PL 146647B1
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PL
Poland
Prior art keywords
commutator
sections
rings
inner rings
electric machine
Prior art date
Application number
PL25396885A
Other languages
Polish (pl)
Other versions
PL253968A1 (en
Inventor
Piotr Drzewiecki
Marian Zerbin
Original Assignee
Inst Lotnictwa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inst Lotnictwa filed Critical Inst Lotnictwa
Priority to PL25396885A priority Critical patent/PL146647B1/en
Publication of PL253968A1 publication Critical patent/PL253968A1/en
Publication of PL146647B1 publication Critical patent/PL146647B1/en

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Description

Przedmiotem wynalazku jest komutator maszyn elektryoznyoh9 zwlaszcza matyoh 1 sredniej wlelkosoi maszyn praoujaoych w podwyzszonej temperaturze* Znany jest z pols¬ kiego opisu patentowego nr 123 362 komutator zawierajacy wieniec wycinków komutatoro¬ wych! posiadajacych wystepy mooujaoe, zapras owanyoh lub zatopionyoh w tworzywie izo¬ lacyjnym* Komutator ten zawiera pierscienie zewnetrzne wykonane z termoutwardzalnego materia¬ lu elektroizolacyjnego zatopione równiez w tworzywie izolacyjnym naprzeciw wystepów mo cujacych w celu zabezpieczenia wycinków komutatorowych przed wyrwaniem pod dzialaniem si¬ ly odsrodkowej oraz pierscienie wewnetrzne Laczace wycinki komutatora* Ten znany ko¬ mutator ma niedogodnosc polegajaca na tym, ze w ozasie zalewania tworzywem izolacyj¬ nym moze wystapic przemieszczenie ustawionych wycinków komutatora* powoduJaoe powsta¬ nie róznych odleglosci miedzy wycinkami.Celem wynalazku jest opraoowanie konstrukcji komutatora, który nie ma tej niedo- godnosol* Istota wynalazku polega na tym9 ze pierscienie wewnetrzne sa wykonane z materia¬ lu oeramloznego o wysokiej wytrzymalosci na sciskanie* Pierscienie zewnetrzne i pier- solenle wewnetrzne sa laczone z wycinkami komutatora 1 z piasta za pomoca kleju* Je¬ den s plersolenl wewnetrznych zawiera otwory umozliwiajace wprowadzenie tworzywa w prooesle zapras owanla* Przedmiot wynalazku jest uwidoczniony w przykladzie wykonania na rysunku, na któ¬ rym fig* 1 przedstawia komutator w pólprzekroju podluznym* fig* 2 - komutator w wi¬ doku od ozola, a fig. 3 - wycinek komutatora w widoku z boku* Komutator wedlug wyna¬ lazku przedstawiony na fig* 1 ma wycinki 3 komutatora polaczone konstrukcyjnie ze so¬ ba za pomoca pierscieni zewnetrznych 1 wykonanych z termoutwardzalnego materialu elek- 146 6k72 146 6k7 trolzolaoyjnego, korzystnie pol i im id owego zbrojonego wlóknem i pierscieni wewnetrznych 2 wykonanych z material.u oeramioznego« Jeden z piersoleni wewnetrznych 2 zawiera otwory 5 umozliwiajace wprowadzenie tworzywa izolacyjnego 6 w procesie zaprasowania. Wycinki 3 ko¬ mutatora posiadaja na obu koncach wystepy mocujaoe zakonczone progami zabezpieczajacymi 4 uniemozliwiajecyroi przesuwanie 3ie zewnetrznych pierscieni mocujacych 1. Pierscienie wewne¬ trzne 2 polaczone sa z wycinkami 3 komutatora i piaste 7 za pomoce kleju o wspólczynniku rozszerzalnosci cieplnej, zblizonym do wspólczynników materialów, z których wykonane sa elementy Z, 3, 7 komutatora.Komutator wedlug wynalazku jest wykonywany w ten sposób, ze wycinki 3 sa laozone z pie- rsolenlaml zewnetrznymi 1 za pomoca kleju* V czasie tej operacji nastepuje dokladne roz¬ mieszczenie wycinków 3 na obwodzie pierscieni 1* Nastepnie pierscienie wewnetrzne 2 laczy sie za pornooa kleju z wycinkami 3 komutatora 1 piasta 7* V dalszej operacji wtlacza sie tworzywo izolacyjne przez otwory 5 w jednym z pierscieni wewnetrznych 2* Tak wykonany ko¬ mutator charakteryzuje sie dobrym zamocowaniem wycinków w komutatorze oraz dokladnym ich rozmieszczeniem na obwodzie* Komutator wedlug wynalazku posiada mniejsza wysokosc wycinków umozliwiajac tym samym obnizenie wymagan wytrzymalosciowych dotyozaoyoh elementów mocuja¬ cych wycinków* Zastrzezenie patentowe Komutator maszyn elektrycznyoh, zwlaszcza malych i srednich wielkosci maszyn praouja- cych w podwyzszonej temperaturze, zawierajacy pierscienie zewnetrzne wykonane z termoutwa¬ rdzalnego materialu elektroizolaoyjnego, korzystnie poliimidowego zbrojonego wlóknem i pierscienie wewnetrzne laczace wycinki komutatora, znamienny t y tn, ze pierscie¬ nie wewnetrzne /2/ wykonane sa z materialu ceramicznego; przy czym pierscienie zewnetrzne /1/ i plersolenle wewnetrzne /2/ sa laczone z wycinkami /3/ komutatora 1 z piasta /7/ za pomoca kleju, a jeden z pierscieni wewnetrznych /Z/ zawiera otwory /5/ umozliwiajace wpro¬ wadzenie tworzywa w prooesie zaprasowania*Ik6 647 / 2 € vT n w PLThe subject of the invention is a commutator for electrical machines, especially a mat of medium-grained machines operated at elevated temperature. It is known from Polish patent description No. 123 362 a commutator containing a ring of commutator pieces! with mooujaoe protrusions, pressed or embedded in insulating material * This commutator contains outer rings made of thermosetting electrical insulating material also embedded in the insulation material against the securing protrusions in order to protect the commutator sections against tearing out under the influence of stresses Internal Joining Commutator Slices * This known commutator has the disadvantage that, in the course of pouring insulating material, displacement of the aligned commutator slices may occur * causing different distances between the slices. This inconvenience * The essence of the invention consists in the fact that the inner rings are made of a ceramic material with high compressive strength * The outer rings and inner rings are joined with the commutator 1 and the hub sections by means of glue * One is pler The internal solen contains holes enabling the insertion of the material into the pressed profile. The subject matter of the invention is shown in an example of the embodiment in the drawing, in which Fig. 1 shows the commutator in a longitudinal cross-section, Fig. 2 - commutator seen from the ground, and Fig. 3 - commutator section in side view * The commutator according to the invention shown in Fig. 1 has commutator sections 3 structurally connected to each other by means of outer rings 1 made of thermosetting electric material, preferably half and the same. and the inner rings 2 made of plastic material. One of the inner rings 2 contains holes 5 for the insertion of the insulating material 6 in the pressing process. The sections 3 of the commutator have fastening protrusions at both ends, terminated with safety thresholds 4, which prevent the edges from shifting 3 of the outer fastening rings 1. The inner rings 2 are connected to the sections 3 of the commutator and the hubs 7 by means of an adhesive with a coefficient of thermal expansion of which the elements Z, 3, 7 of the commutator are made. According to the invention, the commutator is made in such a way that the sections 3 are lined with the outer parts 1 with glue * V during this operation, the sections 3 are carefully positioned around the circumference of the ring 1 * Then the inner rings 2 are joined by the glue with the slices of the commutator 3 the hub 7 * V then the insulating material is pressed through the holes 5 in one of the inner rings 2 * The mutator made in this way is characterized by a good fixing of the slices in the commutator and their arrangement around the circumference lower height of the sections, thus enabling the reduction of the strength requirements for the fastening elements of the sections * Patent claim Commutator of electric machines, especially small and medium-sized machines working at elevated temperature, containing outer rings made of thermally bonded, electro-corrugated polyurethane material and inner rings joining the commutator sections, characterized by the back that the inner rings / 2 / are made of ceramic material; the outer rings / 1 / and the inner plersolenle / 2 / are connected with the sections / 3 / commutator 1 with the hub / 7 / by means of glue, and one of the inner rings / Z / contains holes / 5 / enabling the insertion of the material into press prooesie * Ik6 647/2 € vT nw PL

Claims (1)

1. Zastrzezenie patentowe Komutator maszyn elektrycznyoh, zwlaszcza malych i srednich wielkosci maszyn praouja- cych w podwyzszonej temperaturze, zawierajacy pierscienie zewnetrzne wykonane z termoutwa¬ rdzalnego materialu elektroizolaoyjnego, korzystnie poliimidowego zbrojonego wlóknem i pierscienie wewnetrzne laczace wycinki komutatora, znamienny t y tn, ze pierscie¬ nie wewnetrzne /2/ wykonane sa z materialu ceramicznego; przy czym pierscienie zewnetrzne /1/ i plersolenle wewnetrzne /2/ sa laczone z wycinkami /3/ komutatora 1 z piasta /7/ za pomoca kleju, a jeden z pierscieni wewnetrznych /Z/ zawiera otwory /5/ umozliwiajace wpro¬ wadzenie tworzywa w prooesie zaprasowania*Ik6 647 / 2 € vT n w PL1. Patent claim A commutator for electrical machines, especially small and medium-sized machines working at elevated temperatures, containing outer rings made of thermoset electro-insulating material, preferably polyimide fiber-reinforced polyimide, and inner rings connecting the commutator with sections not internal / 2 / are made of ceramic material; the outer rings / 1 / and the inner plersolenle / 2 / are connected with the sections / 3 / commutator 1 with the hub / 7 / by means of glue, and one of the inner rings / Z / contains holes / 5 / enabling the insertion of the material into press prooesie * Ik6 647/2 € vT nw PL
PL25396885A 1985-06-13 1985-06-13 Electric machine commutator PL146647B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL25396885A PL146647B1 (en) 1985-06-13 1985-06-13 Electric machine commutator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL25396885A PL146647B1 (en) 1985-06-13 1985-06-13 Electric machine commutator

Publications (2)

Publication Number Publication Date
PL253968A1 PL253968A1 (en) 1986-12-16
PL146647B1 true PL146647B1 (en) 1989-02-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
PL25396885A PL146647B1 (en) 1985-06-13 1985-06-13 Electric machine commutator

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PL253968A1 (en) 1986-12-16

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