| 摘要 |
The present invention relates to a connecting structure of a refrigerant pipe, capable of connecting each end part of a refrigerant pipe for inducing a refrigerant gas flow between indoor and outdoor units for making up a cooling device, a heating device, or a cooling/heating device in order to maintain the airtightness. Moreover, the connecting structure of a refrigerant pipe comprises: a valve (110) installed in the corresponding place of indoor and outdoor units of an air conditioner; a refrigerant pipe (140) including a pipe expansion part (141) in the form of a trumpet in the front; an outer sleeve (150) including an outer pipe expansion part (151) inserted into the refrigerant pipe and combined with the outside of the pipe expansion part; an inner sleeve (130) including an inner pipe expansion part (131) inserted into and combined with the pipe expansion part; a nut (170) screwed with the valve (110) by being inserted into the refrigerant pipe to accommodate the outer sleeve inside; a first sealing member (120) in a form to correspond to the form of the inner sleeve (130) having contraction and expansion forces while ensuring airtightness between the inner sleeve (130) and the lower part of the valve (110); and a second sealing member (160) having contraction and expansion forces while ensuring airtightness between the outer sleeve (150) and the inside of the nut (170). |
