COMPRESSOR AND FABRICATION METHOD THEREFOR

WIPO Patent Application WO/2019/047478

A1

A compressor and a fabrication method therefor, wherein the compressor comprises: a housing (2); a motor (3) and a cylinder (5), which are housed in the housing (2); a crankshaft (31), the crankshaft (31) transmitting the rotational force of the motor (3) to a piston in the cylinder (5) so as to compress a refrigerant; and an upper cylinder cover (4) and a lower cylinder cover (6), which define a compression space and which support the crankshaft (31) together with the cylinder (5). The upper cylinder cover (4) is located between the motor (3) and the cylinder (5), and the upper cylinder cover (4) has a through hole through which the crankshaft (31) passes; the upper cylinder cover (4) is provided with a first side (41) facing the motor (3) and a second side (42) facing the cylinder (5); the inner wall of the housing (2) is laser welded to the outer circumference of the first side (41) and/or the outer circumference of the second side (42) of the upper cylinder cover (4); and the included angle between the axial direction of a welding joint and the inner wall of the housing (2) ranges from 0° to 45°. With the present invention, the compressor does not damage the original assembly accuracy due to welding deformation, thereby ensuring uniform air gap of a stator and rotor and achieving reduced noise and improved performance.

HUANG BO (CN)
ZHAO FENGRONG (CN)
TANG YIQUN (CN)

PCT/CN2018/076424

March 14, 2019

February 12, 2018

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SHANGHAI HIGHLY ELECTRICAL APPLIANCES CO LTD (CN)

F04C18/356; F04C23/02; F04C29/00

CN206035810U	2017-03-22
CN105556122A	2016-05-04
JP2017031934A	2017-02-09
KR20060087259A	2006-08-02
JPH0828472A	1996-01-30

See also references of EP 3680486A4

SHANGHAI LUNGTIN LAW FIRM (CN)

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