VEHICLE AIR CONDITIONING DEVICE

Title:

VEHICLE AIR CONDITIONING DEVICE

Document Type and Number:

WIPO Patent Application WO/2014/136450

Kind Code:

A1

Abstract:

Provided is a vehicle air conditioning device that suppresses a decrease in air conditioning performance and eliminates a decline in the amount of refrigerant in a first refrigeration cycle. The vehicle air conditioning device has a configuration equipped with a first refrigeration cycle and second refrigeration cycle that have a portion of a refrigeration pathway in common, and form different heat pump cycles; a first water-refrigerant heat exchanger that is included in the first refrigeration cycle, exchanges heat between a low-temperature, low-pressure refrigerant and the cooling liquid of a heat-generating member of the vehicle, and vaporizes the refrigerant; a flow rate adjustment means that adjusts the flow rate of the cooling liquid flowing through the heat-generating member and the first water-refrigerant heat exchanger; a detection means that detects a decline in the amount of refrigerant in the first refrigeration cycle due to the inflow of the refrigerant into the second refrigeration cycle; and a control means that, when a decline in the amount of refrigerant in the first refrigeration cycle has been detected, controls the flow rate adjustment means, reducing the flow rate of the cooling liquid.

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Inventors:

TERADA TOMOHIRO
NODA YOSHITOSHI
TANIGUCHI KATSUJI
KURODA KENTARO

Application Number:

PCT/JP2014/001213

Publication Date:

September 12, 2014

Filing Date:

March 05, 2014

Export Citation:

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Assignee:

PANASONIC CORP (JP)

International Classes:

B60H1/22; B60H1/32

Domestic Patent References:

WO2013000547A1	2013-01-03
WO2012160434A1	2012-11-29

Foreign References:

US20050224221A1	2005-10-13
JP2000211347A	2000-08-02
JPH08197937A	1996-08-06

Other References: