Electric pump having plastic circuit housing
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United States of America Patent
Stats
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Sep 18, 2018
Grant Date -
Oct 19, 2017
app pub date -
Jun 30, 2017
filing date -
Jan 17, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A metal pump housing includes a shaft support hole for supporting a middle part of a rotary shaft. The rotary shaft includes a first end on which a pump operating portion is provided and a second end on which a motor rotor is provided. A metal motor case is fixed to a part of the pump housing that is at a side of the second end. The motor case accommodates a motor section including a motor stator and a motor rotor. A plastic circuit case member is fixed to a part of the motor case that is opposite to the part to which the pump housing is fixed. A circuit substrate for controlling the motor section is fixed to the circuit case member and is separate from the motor case.
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