US1515889A - Dynamo-electric machine - Google Patents

Description

Nov 18, 1924- 1,515,889-

T. SCHOU ET AL DYNAMO ELECTRIC MACHINE Filed Jan. '7, 1922 '77zeoclor Qc/zoa CZZ M12602 manganese-1924. I? "155,889

1 UNITEDSTATES; PATENT: oFFicE.

'rnnonon scnou AND is GLEN Vinson, on MANSFIELD, OHIO, nssrenons To THE IDEAL nnnc'rmo' ananuracrrnniive so, or NSFIEL 03m, A CORPORATION DYNAMGELEGTRIC MACHINE.

Application filed January 7,1922. Serial No. 527,619.

To all whom it mag concern: Said spacers and supports 10 and 11 may 55 Be it known that WG',\THEODOR Soiaou and be identical in form and may be ofany of GLEN Vinson, a subject of the King of the: forms shown in Figs. 2, 3 and 4or any Norway, and a citizen of the United States equivalent modification thereof.

of America, respectively, and residents of In Fig. 2 the spacer or end support 12 is Mansfield, county of Richland, and State in the form of a plain channel bar. Such a 60 of Ohio, have invented a new and useful bar may be formed from a flat blank '12 Improvement in Dynamo-Electric Mashown in Fig. 5. In Fig. 3 the correspondchines, of which the following is a specificaing member 13 is similar to member 12 extion. cept that one of its sides has a side aper- This invention relates to dynamo electric ture, as will be explained. This form of 66 machines, and especially to the matter of member may be formed from a blank 13 ventilation therefor and the means for holdsuch as shown in Fig. 6. On Fig. 4 the end ing the core laminations in place. The main support and spacer 14 is in the form of a 15 objects of the invention are to provide an channel bar having one end split and s read improved form of spacing means for inseropen. It may be formed from a bla 14' i0 tion between successive groups of laminasuch as shown in F 7.

tions whereby the ventilating air may be Referring to Fig. 6, the blank is more efficiently distributed; to provide such formed with three contiguous cuts 15, 16

means of light and rigid construction; to and 17 to provide a tongue 18. When said provide such means of a form adapted to blank is bent into its channel shape the 76 serve as end supports whereby the tooth tongue 18 is disposed diagonally across the parts of the end laminations of each group bottom of the channel and its free end is may be held rigidly against vibration and secured to the opposite wall as at 19, preferconsequent noise; and to combine such a ably by spot welding. This provides a latinember in a unitary manner with the aderal vent aperture 18. When the member 80 jacent lamination. 13 is positioned as shown in, Fig. 3 the An illustrative embodiment of this inventongue 18 serves as a vane to deflect part of tion is shown in the accompanying drawthe air outward from the channel through in in whichvent 18 into the space 10' between spacers.

igure 1 is a longitudinalradial cross sec- Referring to Fig. 7, the blank 14' is 85 tion through the stator core and support. formed with a T-cut including a central Fig. 2 is a fragmentary view of a core lengthwise cut 20 and a short central cut lamination with one form of spacer em- 21 across the inner end of out 20. Thecut bodying said invention. 21may well be of the nature of a slot.

ig. 3 is a similar view showing another When said blank is bent into a channel an embodiment of the invention. shape the bifurcated end is spread a art to Fig. 4 shows still another embodiment of form legs 22 as shown in Fig. 4, with the the invention. unsplit end against its corresponding lami- Figs. 5, 6 and 7 show fiat sheet metal nation tooth. blocks from which the spacers shown in In each case the spacer or end support 10, Figs. 2, 3 and 4 respectively may be formed. in any of its forms as l2, 13 or 14, is secured ig. 8 is an inner face View of the stator rigidly, to the lamination a 'ainst which its core and'adjacent clamping rings. channel base rests, spot-welding being pref- 4 In the construction shown in the drawerable, as at 23.

ings, the stator comprises a laminated core Each tooth supporting part 10 is pref- 1 supported on a rigid frame 2, by means of erably somewhat narrower than the tooth clampin rings 3' and pins 4, said rings 24 .and good clearance is providedfor the being he (1 in place by keys 5dis osed in the winding slots 25. The part, 10 comes a slots or grooves 6 and 7 of the ame 2 and little short of the coil locking notches 26, so rings 3 respectively. as to clear'the wedge or key members, not

The .core 1 comprises laminations 8 ar- .shown. ranged in groups 9 separated by spacers 10 Although three specific embodiments of I and secured at their ends by supports 11. this invention are herein shown and described it is to be understood that no attempt has been made to show all practical forms of embodiment; that some of the de tails of the constructions shown may he altered or omitted without departing from the spirit of this invention as defined by the following claims.

We claim:

1. In a dynamo-electric machine, including a laminated core member having alternately disposed radial teeth and slots, a plurality of groups or laminations in combination with a series of radially disposed spacers between said groups to provide ventilation, said spacers having air passageways each respectively, each spacer also including a core body supporting part, and

each body supporting part having a side part formed and disposed diagonally to spread the air laterally opposite the nonslotted body of the core.

2. In a dynamo-electric machine a toothed lamination, in combination with a channel bar disposed radially thereon and secured thereto in a rigid and unitary manner, said bar having one end disposed lengthwise of and against a lamination tooth and its other end being split and spread apart and disposed against the hody part of said lamination.

Signed at Mansfield, 0., this'4th day of January 1922.

THEODOR SCHOU. S'GLEN VINSON.

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