Position sensor board for a brushless motor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11426855
APP PUB NO 20200180134A1
SERIAL NO

16794509

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A power tool is provided including a brushless DC (BLDC) motor having a stator assembly and a rotor; a substantially-cylindrical motor housing having an open end for receiving the stator assembly, a rear end, a substantially-cylindrical bearing pocket formed in the rear end to receive the rear bearing of the motor therein, and a radially-extending slot formed at or near its rear end; and a positional sensor board radially received within the slot along a central receiving axis. The positional sensor board includes a curved inner edge shaped to be positioned around the bearing pocket and includes positional sensors mounted around the curved inner edge and facing the rotor to sense a rotational position of the rotor. The curved inner edge is disposed on a side corner of the positional sensor board such that the positional sensor board is asymmetrically-shape in a direction of the receiving axis.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
BLACK & DECKER INCNEW BRITAIN CT

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bush, Dennis A Dillsburg, US 16 394
Cherry, Mark T White Marsh, US 9 48
Marjomaa, Michael R Mount Wolfe, US 12 45
Palich, Andrew M Ellicott City, US 10 77
Pulley, Kevin L White Marsh, US 15 59
Smith, David J Columbia, US 172 3501

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