SU611273A1

SU611273A1 - Electric machine stator

Info

Publication number: SU611273A1
Application number: SU762335962A
Authority: SU
Inventors: Вадим Николаевич Песюков; Иван Денисович Телявский
Original assignee: Предприятие П/Я А-7809
Priority date: 1976-03-22
Filing date: 1976-03-22
Publication date: 1978-06-15

Description

(54) СТАТОР ЭЛЕКТРИЧЕСКОЙ МАШИНЫ(54) ELECTRIC MACHINE STATOR

1one

Изобретение относитс к электрическим машинам , в частности к статорам электрических машин с обмоткой, размещенной в пазах.The invention relates to electric machines, in particular to stators of electric machines with a winding placed in the slots.

Известны статоры электрических машин, в которых шихтованный сердечник скрепл етс в осевом направлении с помошью нажимных фланцев и нажимных пальцев, расположенных напротив зубцов статора 1.The stators of electrical machines are known in which the laminated core is fastened axially with the help of pressure flanges and pressure fingers located opposite the teeth of the stator 1.

Недостатком такой конструкции вл етс сложность изготовлени нажимного устройства , что затрудн ет ее реализацию в серийно выпускаемых электрических машинах средней мощности.The disadvantage of this design is the complexity of manufacturing the pressure device, which makes it difficult to implement in commercially available electric machines of average power.

Известен также статор электрической машины , содержащий станину, сердечник со средними и крайними листами, в котором на крайних листах закреплены штампованные П-образные полоски, общие на два соседних зубца , выполн ющие функции нажимных пальцев 2.Also known is the stator of an electric machine containing a frame, a core with middle and extreme sheets, in which stamped U-shaped strips are fixed on the extreme sheets, which are common to two adjacent teeth, which perform the functions of push fingers 2.

Однако така конструкци отличаетс недостаточной жесткостью крайних листов, а нажимные пальцы выполн ютс отдельно и должны специально крепитьс к крайним листам:However, such a structure is characterized by insufficient rigidity of the extreme sheets, and the pressing fingers are made separately and must be specially attached to the extreme sheets:

Цель изобретени - повышение надежности машины путем увеличени жесткости крайних листов, а также упрощение технологии изготовлени .The purpose of the invention is to increase the reliability of the machine by increasing the rigidity of the extreme sheets, as well as simplifying the manufacturing technology.

Цель достигаетс тем, что в предлагаемом устройстве зубцы крайних листов развернуты на 90° относительно плоскости листа. Крайние листы могут иметь дополнительные зубцы по наружной окружности в пределах высоты рма, также развернутые на 90° относительно плоскости листа. Дл дополнительного увеличени жесткости зубцы крайних листов в развернутой части выполнены волнообразными.The goal is achieved by the fact that in the proposed device the teeth of the extreme sheets are rotated 90 ° relative to the plane of the sheet. Extreme sheets may have additional teeth on the outer circumference within the height of the frame, also rotated 90 ° relative to the plane of the sheet. To further increase the stiffness, the teeth of the extreme sheets in the unfolded part are made wavy.

На фиг. 1 изображен крайний лист статора Q с развернутыми зубцами; на фиг. 2 - разрез по /I-А на фиг. 1; на фиг. 3 - конструкци статора с крайними листами по фиг. 1; на фиг. 4 - крайний лист с дополнительными развернутыми зубцами по наружной окружности; на фиг. 5 - разрез по Б-Б на фиг. 4; 5 на фиг. 6 - конструкци статора с крайним листом по фиг. 4; на фиг. 7 - крайний лист с волнообразными зубцами.FIG. 1 shows the outermost stator sheet Q with unfolded teeth; in fig. 2 is a section through / IA in FIG. one; in fig. 3 shows a stator structure with the outermost sheets of FIG. one; in fig. 4 - extreme sheet with additional unfolded teeth on the outer circumference; in fig. 5 is a section along BB in FIG. four; 5 in FIG. 6 shows a stator structure with an extreme sheet of FIG. four; in fig. 7 - extreme sheet with wavy teeth.

Крайний лист содержит кольцо 1, св зывающее зубцы 2, развернутые на 90° в основании 3 зубца.The outermost sheet contains a ring 1 binding the teeth 2, rotated 90 ° at the base of the 3 teeth.

Claims

The extreme sheet is mounted on the end of the core 4 and is pressed against the outside by the ring 5. If the extreme sheet does not have external teeth, then its ring part is pressed by the additional ring 6. The rings are locked with a key 7 in the frame 8. The additional teeth 9 on the outer circumference of the extreme sheet have equal width and also rotated 90 °. Extreme sheets are made of sheet steel slightly thicker than the average. They can be stamped. At the same time, the operations of cutting, waving and unfolding the teeth are successively performed on different stamps. The technical / effect of the design of the extreme sheets with the teeth turned 90 ° consists in the fact that they have increased rigidity in the axial direction and act as push fingers to prevent the electric machine from fluffing up the stator core package. Extreme sheets of this design are easy to manufacture, as they are made by stamping. Claim 1. Stator of an electric machine, comprising a frame, a core with middle and extreme sheets, characterized in that, in order to increase the reliability of the machine by increasing the rigidity of the extreme sheets, the teeth of the extreme sheets are rotated 90 ° relative to the sheet plane. 2. The stator according to claim 1, characterized in that the outer sheets comprise additional teeth located along the outer circumference within the height of the frame and rotated 90 ° relative to the plane of the sheet. 3. The stator on the PP. 1 and 2, characterized in that. in order to further increase the stiffness, the teeth of the extreme sheets in the unfolded part are made wavy. Sources of information taken into account in the examination: 1. USSR author's certificate number 397998, cl. H 02 K 1/18, 1970.

2. USSR author's certificate number 300926, cl. H 02 K 1/18, 1969.

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