Liquid reservoir

摘要

A liquid reservoir used in a heat exchanger, for example an automotive air conditioner, and a manufacturing method therefor. The liquid reservoir includes an inlet hole and an outlet hole. The outlet hole is provided with a filter element covering the outlet hole. A flow area at a location of the outlet hole covered by the filter element is greater than the cross-sectional area of other locations of the outlet hole. In this way, in the case that other structures of the inlet hole are not improved, a filtering area of the filter element is increased, thereby increasing a flow area of a refrigerant, reducing a flow resistance effect exerted by the filter element on the refrigerant, and reducing a workload of the heat exchanger.

主权项

1. A receiver for a heat exchanger comprising:
a first receiver body defining a first passageway and a second passageway in condition that one of the first passageway and the second passageway acts as an inlet hole, and the remaining one of the first passageway and the second passageway acts as an outlet hole, the second passageway comprising a main body portion and a buffer space in communication with the main body portion; and a filter element covering the buffer space so as to filter the second passageway; wherein the buffer space is empty and comprises a first end opening directly covered by the filter element and a second end opening in communication with the main body portion; and wherein an area encircled by the first end opening of the buffer space is larger than a horizontal cross-sectional area of the main body portion adjacent to the buffer space, as a result that a relatively large filter interface can be achieved; and wherein the second passageway comprises a counter bore portion, the counter bore portion comprising the buffer space, an accommodating hole above and in communication with the buffer space and a positioning hole above and in communication with the accommodating hole, the filter element being received in the accommodating hole, the receiver further comprising a retaining plate at least partly received in the positioning hole, the buffer space being provided with a reasonable large thickness so as to perform a buffering function when a refrigerant flows through the second passageway.