Title:
ELECTRIC PUMP
Document Type and Number:
Japanese Patent JP2023004065
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; and a seal member 90 which seals a 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; a first coil guide part 92 which penetrates the seal member in the axial direction; a potting material 99 which is filled between an outer peripheral surface of the coil wire and an inner peripheral surface of the first coil guide part; and a second coil guide part 93 which is provided on the first surface, and on which the first coil guide part is opened.SELECTED DRAWING: Figure 5
Inventors:
SAKATA TOMOHIRO
KATAOKA YOSHIHIRO
KATAOKA YOSHIHIRO
Application Number:
JP2021105538A
Publication Date:
January 17, 2023
Filing Date:
June 25, 2021
Export Citation:
Assignee:
NIDEC TOSOK CORP
International Classes:
H02K7/14; F04B39/00; 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