Connection structure of coolant pipe of air conditioner

Details Connection structure of coolant pipe of air conditioner Connection structure of coolant pipe of air conditioner

2006-03-28

2006-03-28

Jones, Melvin (Department: 3744)

Refrigeration

With repair, assembly or disassembly means

Reexamination Certificate

active

07017362

ABSTRACT:
In an air conditioner which is divided into an indoor unit and an outdoor unit, the present invention improves the reliability with respect to the electrical insulation and refrigerant leakage of connection structures for refrigerant lines of the air conditioner that serve to transmit electrical signals of the indoor unit and outdoor unit via connection lines that serve to connect the indoor unit and outdoor unit and circulate refrigerant. An insulation portion of an electric insulation device is formed from an annular first flange, an annular second flange, a gasket that is arranged between the first flange and the second flange and composed of an electric insulation material, a plurality of through bolts and nuts that join the first flange and the second flange, a sleeve composed of an electric insulation material that lies between the bolt holes of the first flange and the second flange and the through bolts, and a washer that is interposed between head portions of the through bolts and the first flange.

REFERENCES:
patent: 5611680 (1997-03-01), Small et al.
patent: 5622058 (1997-04-01), Ramakrishnan et al.
patent: 5732565 (1998-03-01), Ramakrishnan et al.
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patent: 4-136 (1992-01-01), None
patent: 7-65783 (1995-03-01), None
patent: 10-54498 (1998-02-01), None
patent: 2000-329273 (2000-11-01), None

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