Magnetic core spacer with means to prevent adverse vibrations thereof
AssigneeWestinghouse Canada Limited
InventorCarlo R. Di Pietro
Life of this patent
Estimating the term…
Abstract
A dynamoelectric machine includes a plurality of groups of assembled laminations, each having two opposed end walls with at least one of the end walls incuding a plurality of locating recesses and spacer engaging tabs. The groups of laminations are secured within the machine between two end clamps. A plurality of spacers securable between adjacent ones of the groups and between the groups and the clamps provides air vents within the machine. Each of the spacers includes a keying arm portion engagable with one of the locating recesses to position the spacer relative to one end wall. The spacer engaging tabs abut the spacers, when so positioned by the locating recesses, to prevent adverse vibrational movement of the spacers during machine operation.
Claims9
A dynamoelectric machine stator comprising:
- a plurality of groups of assembled laminations, each group including two opposed end walls, at least one of said end walls including a plurality of locating slots and spacer engaging means formed therein:
- end clamp means for securing said groups in said machine;
- and
- a plurality of magnetic spacers secured between said groups and said clamp means and between adjacent ones of said groups to provide air vents between adjacent walls of said groups;
- each of said spacers including tongue means engageable with one of said locating slots to position the spacer relative to the one end wall, and said spacer engaging means including a pair of opposing raised tangs located in each tooth portion of end wall laminations for engaging said spacers between said pair of opposing raised tangs to prevent adverse vibrational movement of said spacers during machine operation.
A dynamoelectric machine stator including:
- a plurality of groups of stacked magnetic laminations, each group having two opposed end walls and comprising an annular portion having a plurality of radially and inwardly directed teeth, at least one of the end walls including a plurality of recesses extending into said annular portion above said teeth, said at least one end wall including a plurality of pairs of spaced apart opposing raised tang members extending outwardly from the teeth of said one end wall such that there corresponds at least one pair of raised tang members for each of said recesses;
- two end plates securing said groups in said machine stator;
- and,
- a plurality of magnetic spacers, each spacer including an elongate body portion and an arm portion, said arm portion being insertable into one of said recesses to positively locate said elongate body portion against the tooth of said one end wall such that opposing surfaces of said body portion are engaged by the opposing raised tang members extending from said tooth to prevent adverse vibrational movement of said spacer during machine operation, whereby said spacers separate said groups from said end plates and from each other to provide air vents between adjacent end walls of said groups.
Dependencies are inferred from the claim text.