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Title:
MOTOR CONTROL DEVICE, INTEGRATED VALVE DEVICE, AND HEAT EXCHANGER
Document Type and Number:
Japanese Patent JP2019128110
Kind Code:
A
Abstract:
To provide a motor control device capable of driving a motor with respect to heavy load while suppressing heat generation.SOLUTION: An integrated valve device 24 switches flow of a refrigerant in a refrigeration cycle device between a heating mode and a cooling mode, and includes: a single motor 26; and a valve body part 25 having first to third valves 31 to 33 opened/closed on the basis of driving force of the motor 26. An integrated valve ECU 27 as a motor control device is provided with a current value variable control part 27a variably controlling current value of the drive current to be supplied for the motor 26. The current value variable control part 27a increases current value of the driving current at timing based on opening/closing of the first valve 31 (a first valve seat 52).SELECTED DRAWING: Figure 2

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Inventors:
KAWADA SHINJI
OTSUKA HIKARI
KUWATA ARATA
ITO TETSUYA
Application Number:
JP2018010719A
Publication Date:
August 01, 2019
Filing Date:
January 25, 2018
Export Citation:
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Assignee:
DENSO CORP
International Classes:
F25B41/04; B60H1/32; F16K1/44; F16K31/04; H02P29/40
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda