Title:
ELECTRIC PUMP
Document Type and Number:
Japanese Patent JP2022151925
Kind Code:
A
Abstract:
To provide an electric pump which achieves reduction in size and reduction in weight while maintaining heat radiation performance.SOLUTION: An electric pump 10 includes: a motor having a rotor rotatable around a central axis extending in the axial direction; a pump mechanism connected to the rotor; a circuit board provided on one side in the axial direction of the motor; a housing 40 for storing the motor, the pump mechanism and the circuit board; a heat radiation material provided on one side in the axial direction with respect to the circuit board, and for covering at least part of the circuit board; and a cover 60 fixed to a mounting surface positioned at an end part on one side in the axial direction of the housing, and for closing a storage recessed part for storing the circuit board. The cover includes: a fixed part 61 fixed on the mounting surface of the housing; a recessed part 62 positioned radially inside of the fixed part, recessed to the other side in the axial direction with respect to the fixed part, and for sandwiching the heat radiation material between itself and the circuit board; and a first rib 64 protruding to one side in the axial direction from a bottom surface of the recessed part, and extending along the bottom surface.SELECTED DRAWING: Figure 1
Inventors:
KOBAYASHI YOSHIYUKI
SAKAMOTO HITOSHI
KANAMONO HIROTAKA
SAKAMOTO HITOSHI
KANAMONO HIROTAKA
Application Number:
JP2021054481A
Publication Date:
October 12, 2022
Filing Date:
March 29, 2021
Export Citation:
Assignee:
NIDEC TOSOK CORP
International Classes:
F04B53/00; F04B53/16; F04C15/00
Attorney, Agent or Firm:
Shu Oikawa
Yuki Narita
Masahisa Matsumoto
Ancient city Satoshi
Yuki Narita
Masahisa Matsumoto
Ancient city Satoshi