To provide a connecting structure of a check valve capable of preventing reverse connection of the check valve when the check valve is connected to a capillary tube in which a refrigerant is circulated.
Connecting portions 16a, 16b, 16c, 16d, 16e, 16f of uniform diameter are formed at both end sides of the check valve 2B allowing the refrigerant to flow only in one direction. The indoor-side connecting portions 16d, 16e, 16f are provided with stoppers 20. The stoppers 20 control an insertion length at an indoor side to a length C. Beads 18 (projections) indicating inserting portions 19a of the length A are formed on an outdoor-side end portion of the capillary tube 3 for heating and end portions of outdoor-side capillary tubes 9, 10. The length A of the inserting portion 19a is determined to be longer than the length C controlled by the stopper 20. The inserting portions 19a are inserted into the indoor-side inserting portions 16d, 16e, 16f. Thus the reverse connection of the check valve 2B can be found at first glance.
| JP2003042600A | 2003-02-13 | |||
| JPS6451170U | 1989-03-29 | |||
| JP2001174106A | 2001-06-29 | |||
| JPH01275992A | 1989-11-06 | |||
| JPH01136790U | 1989-09-19 | |||
| JPH06174106A | 1994-06-24 | |||
| JP2001336863A | 2001-12-07 | |||
| JPH07167535A | 1995-07-04 | |||
| JPH06257900A | 1994-09-16 |
Shuzo Hinode
Seiji Goto
Junko Ohara