| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an air conditioning device having a refrigerant circuit constituted by connecting a compressor, an outdoor heat exchanger, a first expansion valve, a receiver, an opening/closing valve, and an indoor heat exchanger, capable of preventing liquid seal of the receiver by using a full close-type expansion valve without disposing a liquid seal prevention pipe.SOLUTION: A full close-type first expansion valve 24 is disposed in a refrigerant circuit in a first arrangement state where a refrigerant from a receiver flows in from a needle advancing direction side of a valve seat 55. The first expansion valve 24 disposed in the first arrangement state has a spring 62 for biasing a needle 61 in the needle advancing direction.</p> |
