Title:
ELECTRONIC DEVICE
Document Type and Number:
Japanese Patent JP2023116854
Kind Code:
A
Abstract:
To improve the vibration resistance of electrolytic capacitors 28 and 29 by applying a moisture-proof coating agent while preventing the moisture-proof coating agent from adhering to an application-prohibited area N1.SOLUTION: Three electrolytic capacitors 29A, 29B, 29C of one system are lined up in a line along the center line M of a circuit board 3, and similarly, three electrolytic capacitors 29A, 29B, 29C of the other system are lined up in a line. A moisture-proof coating agent is sprayed with a spray gun on a coating area C4 between the two rows. By applying the moisture-proof coating agent, the electrolytic capacitors 29A, 29B, and 29C are fixed to the substrate surface, and vibration resistance is improved. Since the electrolytic capacitors 29A, 29B, and 29C are lined up in a wall shape, adhesion of the moisture-proof coating agent to the coating-prohibited area N1 is suppressed.SELECTED DRAWING: Figure 3
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Inventors:
KOSEKI TOMONOBU
SAKASHITA TOMIO
SAKASHITA TOMIO
Application Number:
JP2022019188A
Publication Date:
August 23, 2023
Filing Date:
February 10, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD
International Classes:
H05K3/28; H01G2/02; H01G2/06; H01G9/08; H05K1/18
Attorney, Agent or Firm:
Hiromichi Kobayashi
Kiyoshi Tomioka
Kazuaki Takashima
Kiyoshi Tomioka
Kazuaki Takashima
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