Title:
ELECTRIC PUMP
Document Type and Number:
Japanese Patent JP2023004064
Kind Code:
A
Abstract:
To provide an electric pump which allows cost reduction, downsizing, and assemblability improvement by reducing the number of components.SOLUTION: An electric pump comprises: a motor having a rotor part and a stator part; a circuit board provided on one side in the axial direction of the motor; a pump mechanism coupled, on the other side in the axial direction of the motor, to the rotor part; a housing which has a housing space for housing the motor, the pump mechanism, and the circuit board; and a seal member 90 which seals the housing space between the motor and the circuit board so as to partition off the housing space. The stator part has a coil wire which extends to one side in the axial direction and is connected to the circuit board. The seal member has: a first surface 91a facing the motor; and a second surface 91b facing the circuit board. The seal member further has: a coil guide part 92 which penetrates in the axial direction so as to guide the coil wire along the axial direction; a potting region 94 which is provided on the first surface or the second surface, and in which the coil guide part is opened; and a potting material 99 which is filled in the potting region.SELECTED DRAWING: Figure 5
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Inventors:
SAKATA TOMOHIRO
KATAOKA YOSHIHIRO
KATAOKA YOSHIHIRO
Application Number:
JP2021105537A
Publication Date:
January 17, 2023
Filing Date:
June 25, 2021
Export Citation:
Assignee:
NIDEC TOSOK CORP
International Classes:
H02K7/14; F04B39/12; F04B39/14; H02K3/50; H02K3/52
Attorney, Agent or Firm:
Shu Oikawa
Yuki Narita
Masahisa Matsumoto
Ancient city Satoshi
Yuki Narita
Masahisa Matsumoto
Ancient city Satoshi