| 摘要 |
A first casing includes a first baffle plate, and a second casing includes a second baffle plate. The second baffle plate is contiguous to a guide rib, which is disposed underneath the second baffle plate, having a horizontal side wall and a slanted side wall. A slit is defined between the horizontal side wall and the slanted side wall, wherein the slit extends to an end face of a partition wall. When the first casing and the second casing are connected to each other, the first baffle plate is slidably inserted in the slit. The first baffle plate projects slightly from the slit into a liquid reservoir chamber, by a distance that is not large enough to increase air resistance with respect to air flowing in the vehicular air conditioning unit. An expansion valve is sandwiched between the first baffle plate and the second baffle plate.
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