JPH0479995U

JPH0479995U -

Info

Publication number: JPH0479995U
Application number: JP12368890U
Authority: JP
Priority date: 1990-11-27
Filing date: 1990-11-27
Publication date: 1992-07-13

Description

[Brief explanation of the drawing]

第１図から第７図は本考案の一実施例を示し、
第１図は遠心フアン回りの縦断側面図、第２図は
第１図中部に拡大断面図、第３図はブレードの
正面図、第４図は一部を切欠いて示す遠心フアン
の平面図、第５図は一部を切欠いて示す遠心フア
ンの裏面図、第６図は一部を断面して示す全体の
側面図、第７図は一部の分解斜視図である。第８
図は外側ワツシヤの変形例を示す断面図である。
第９図および第１０図は従来例を示し、第９図は
電動機部の斜視図、第１０図は遠心フアン回りの
縦断側面図である。１２……ケース本体、１３……ケース端面板、
１５……円筒部、１６……環状平面部、２０……
固定子、２２……回転子、２４……固定子鉄心、
２５……固定子巻線、２６，２７……風路、２８
……回転子軸、３６……遠心フアン、３８……フ
アンカバー、３９……吸気口、４１……第１デイ
スクプレート、４２……第２デイスクプレート、
４３……ブレード、４３ａ……延出端部、４４…
…開口、４８……係止突片、４９……係止孔、５
１……外側のワツシヤ、５１ａ……周部（閉塞手
段）、５２……環状溝。 1 to 7 show an embodiment of the present invention,
Fig. 1 is a longitudinal side view of the centrifugal fan, Fig. 2 is an enlarged sectional view in the middle of Fig. 1, Fig. 3 is a front view of the blade, and Fig. 4 is a partially cutaway plan view of the centrifugal fan. FIG. 5 is a back view of the centrifugal fan with a portion cut away, FIG. 6 is a side view of the entire centrifugal fan with a portion cut away, and FIG. 7 is a partially exploded perspective view. 8th
The figure is a sectional view showing a modification of the outer washer.
9 and 10 show a conventional example, with FIG. 9 being a perspective view of the electric motor section, and FIG. 10 being a longitudinal sectional side view of the area around the centrifugal fan. 12...Case body, 13...Case end plate,
15... Cylindrical part, 16... Annular plane part, 20...
Stator, 22... rotor, 24... stator core,
25... Stator winding, 26, 27... Air path, 28
... Rotor shaft, 36 ... Centrifugal fan, 38 ... Fan cover, 39 ... Intake port, 41 ... First disk plate, 42 ... Second disk plate,
43...Blade, 43a...Extending end, 44...
... Opening, 48 ... Locking protrusion, 49 ... Locking hole, 5
1...Outer washer, 51a...periphery (closing means), 52...annular groove.

Claims

[Claims for Utility Model Registration] 1. A stator having a stator core with an approximately rectangular outer shape, and a cylindrical portion that houses a rotor disposed inside the stator. an air passage formed between a case body provided with an annular flat part projecting outward from the cylindrical part; an inner surface of the cylindrical part; and an outer surface of the stator core, the corner part of which is placed in close contact with the inner surface of the cylindrical part; a case end plate fixed to the annular plane part and having a bearing support part in the center; a first disk plate having an opening in the center;
A second disk plate connected to the rotor shaft of the rotor, which is arranged opposite to this plate and passes through the bearing support part, and a metal plate formed by a large number of blades connecting these two plates. a centrifugal fan, and a fan cover that is attached to the edge of the opening at one end of the case body to cover the centrifugal fan, and has an intake port in the center that communicates with the opening of the first disk plate, In the electric blower, the blade is provided with an extending end portion that gradually projects from the edge of the opening of the first disc plate toward the inside of the opening as it goes from the first disc plate to the second disc plate, A locking protrusion is provided protrudingly on the end face of the end on the second disk plate side, and the locking protrusion is inserted into the locking hole provided in the second disk plate, and the locking protrusion is inserted. An electric blower characterized in that the locking hole is closed by a closing means. 2. A claim in which the closing means is formed by a peripheral part of a washer overlaid on the central part of the outer surface of the second disk plate, and the peripheral part has an annular groove that covers the locking hole. The electric blower described in 1.