Title:
COMPOSITE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/248708
Kind Code:
A1
Abstract:
[Problem] To provide a composite device that can contribute to miniaturization of a vehicle air conditioning device, etc., and to suppress malfunctions, etc., of electronic circuits mounted therein. [Solution] This composite device 1 comprises: a first housing 2A in which a compression mechanism 3 for compressing a refrigerant and an electric motor 4 for driving the compression mechanism 3 are accommodated; a second housing 2B in which an electric heater 5 for heating a heat medium is accommodated; and a third housing 2C in which a motor drive circuit 20, a heater control circuit 30, and a power supply circuit 50 that generates power to be supplied to the motor drive circuit 20 and the heater control circuit are accommodated. The drive frequency of first switching elements Q1-Q6 of the motor drive circuit 20, the drive frequency of second switching elements Q7, Q8 of the heater control circuit 30, and the drive frequency of a third switching element Q9 of the power supply circuit 50 are set so as not to overlap each other.
Inventors:
SEKI RYUNOSUKE (JP)
Application Number:
PCT/JP2023/019681
Publication Date:
December 28, 2023
Filing Date:
May 26, 2023
Export Citation:
Assignee:
SANDEN CORP (JP)
International Classes:
H02M7/48; B60H1/22; B60H1/32; F04B39/00; H02P29/00
Domestic Patent References:
| WO2013035147A1 | 2013-03-14 |
Foreign References:
| JP2014084024A | 2014-05-12 | |||
| JP2009136069A | 2009-06-18 |
Download PDF:
Previous Patent: ELECTRIC COMPRESSOR AND METHOD FOR MANUFACTURING SAME
Next Patent: AIR CONDITIONING DEVICE
Next Patent: AIR CONDITIONING DEVICE