US 12,085,076 B2
Scroll structure and compressor with back pressure plate and floating plate
Canyu Qian, Guangdong (CN); Osamu Aiba, Guangdong (CN); Baiying Huang, Guangdong (CN); Bo Jiang, Guangdong (CN); Xiaolei Li, Guangdong (CN); and Hidenobu Shintaku, Guangdong (CN)
Assigned to GUANGDONG MIDEA ENVIRONMENTAL TECHNOLOGIES CORPORATION LIMITED, Guangdong (CN)
Filed by GUANGDONG MIDEA ENVIRONMENTAL TECHNOLOGIES CORPORATION LIMITED, Guangdong (CN)
Filed on Feb. 24, 2023, as Appl. No. 18/113,920.
Application 18/113,920 is a continuation of application No. PCT/CN2020/135085, filed on Dec. 10, 2020.
Claims priority of application No. 202010898728.6 (CN), filed on Aug. 31, 2020; and application No. 202021861162.1 (CN), filed on Aug. 31, 2020.
Prior Publication US 2023/0204033 A1, Jun. 29, 2023
Int. Cl. F04C 18/02 (2006.01); F04C 27/00 (2006.01); F04C 28/26 (2006.01); F04C 29/12 (2006.01)
CPC F04C 18/0215 (2013.01) [F04C 18/0253 (2013.01); F04C 27/008 (2013.01); F04C 28/26 (2013.01); F04C 29/12 (2013.01); F04C 29/126 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A scroll structure comprising:
a first scroll plate;
a second scroll plate matching the first scroll plate, wherein the first scroll plate and the second scroll plate are movable relative to each other, a recess is provided at one end of the second scroll plate facing away from the first scroll plate, and a first through hole is provided on the second scroll plate;
a back pressure plate arranged in the recess, wherein a gap is provided between the back pressure plate and a side wall of the recess; and
a floating plate movably arranged on the back pressure plate,
wherein:
the floating plate covers the gap,
a first chamber is formed among the second scroll plate, the back pressure plate, and the floating plate, and
the first through hole is in communication with the first chamber,
wherein the recess comprises a first stepped surface, and the floating plate is supported by the first stepped surface, and
wherein the back pressure plate comprises a stepped structure, and the floating plate is supported by the stepped structure.