Abstract: A heat exchanger and an integral sealing device (100, 200, 300, 400, 500) used for a manifold (10, 10?) in the heat exchanger. The manifold (10, 10?) on one side of the heat exchanger includes two pipelines (11, 12, 11?, 12?) which are parallel to each other and communicated with each other. A first bore (13) and a second bore (14) are formed in two pipelines (11, 12, 11?, 12?) due to a drilling process. The first bore (13) is used for enabling refrigerant to flow from a cavity of one of two pipelines (11, 12, 11?, 12?) into a cavity of the other pipeline. The second bore (14) is a process hole left by the drilling process, and the integral sealing device (100, 200, 300, 400, 500) seals the process hole.

Abstract: A heat exchanger and an integral sealing device (100, 200, 300, 400, 500) used for a manifold (10, 10?) in the heat exchanger. The manifold (10, 10?) on one side of the heat exchanger comprises two pipelines (11, 12, 11?, 12?) which are parallel to each other and communicated with each other. A first bore (13) and a second bore (14) are formed in two pipelines (11, 12, 11?, 12?) due to a drilling process. The first bore (13) is used for enabling refrigerant to flow from a cavity of one of two pipelines (11, 12, 11?, 12?) into a cavity of the other pipeline. The second bore (14) is a process hole left by the drilling process, and the integral sealing device (100, 200, 300, 400, 500) seals the process hole.

Abstract: Disclosed is a collecting pipe (1), comprising: an axially extending inner chamber (20), the inner chamber (20) comprising a refrigerant inlet chamber (18) and a refrigerant distribution chamber (19), the refrigerant inlet chamber (18) and refrigerant distribution chamber (19) being separated from each other and in fluid communication with each other, a refrigerant entering the refrigerant inlet chamber (18) and being distributed to heat exchange tubes (2) at the refrigerant distribution chamber (19); and a plurality of axially extending individual components (11, 12), wherein the refrigerant inlet chamber (18) and the refrigerant distribution chamber (19) are formed by successively placing and connecting the plurality of axially extending individual components (11, 12) in an assembling direction perpendicular to the axial direction. The collecting pipe (1) is composed of the plurality of individual components (11, 12).