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Patent Agency Ranking
公开(公告)号：US20250067262A1
公开(公告)日：2025-02-27
申请号：US18725475
申请日：2022-12-29
Applicant: Danfoss (Tianjin) Ltd.
Inventor： Yusong SUN , Li YAO , Wanzhen LIU , Yan LIN , Xishuang ZHANG , Sanxiang LIU
Abstract: A scroll compressor includes a first scroll, the first scroll including a first end plate and a first scroll wrap extending from the first end plate along a first direction; a second scroll, the second scroll including a second end plate and a second scroll wrap protruding from the second end plate along a second direction opposite to the first direction, the second scroll wrap and the first scroll wrap cooperating to form a compression cavity used for compressing a medium; a support located at a side of the second scroll away from the first scroll; a motor; and a driving member rotatably supported by the support and located at the side of the second scroll away from the first scroll. The motor drives the first scroll to rotate through the driving member, and the first scroll drives the second scroll to rotate. The scroll compressor is compact in structure, small in volume, and light in weight.
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公开(公告)号：US20250059974A1
公开(公告)日：2025-02-20
申请号：US18725356
申请日：2022-12-29
Applicant: DANFOSS (TIANJIN) LTD.
Inventor： Yusong SUN , Li YAO , Wanzhen LIU , Yan LIN , Xishuang ZHANG , Sanxiang LIU
IPC: F04C18/02
Abstract: A scroll compressor includes a compressor shell; a frame (4) installed in the compressor shell; a first scroll (5) located in the compressor shell; and a second scroll (6) located in the compressor shell and being co-rotatable with the first scroll (5), to define a compression chamber (56) between the first scroll (5) and the second scroll (6), the second scroll (6) having a hub (41) that extends downward from a lower surface thereof; a transformer flange (8) supported on the frame and supporting the first scroll (5) and the second scroll (6), the transformer flange (8) being connected to the first scroll (5); an actuating mechanism (7) installed in the compressor shell and connected to the transformer flange (8), for driving the transformer flange (8) to rotate, so that the first scroll (5) and the second scroll (6) are driven to co-rotate; a crankshaft (9) assembly located in the transformer flange (8) and including an oil screw (10), an upper end (101) of the oil screw (10) being fitted with a hub (61) of the second scroll (6), a lower end of the oil screw (10) extending into an oil sump (31); and a plurality of supports (11, 12, 13, 14, 15, 16), such as bearings or bushings or gaskets, located on the same side of the compression chamber (56).
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公开(公告)号：US20230119389A1
公开(公告)日：2023-04-20
申请号：US17907818
申请日：2021-02-23
Applicant: Danfoss (Tianjin) Ltd.
Inventor： Wanzhen LIU , Yan LIN , Guangqiang LIU , Zhenyu WANG , Meng WANG , Shizhong JI , Li YAO
Abstract: A rotor for an interior permanent magnet motor, an interior permanent magnet motor, and a compressor includes a rotor core, a plurality of U-shaped permanent magnet accommodating grooves, a plurality of first air grooves, and a plurality of first recesses, wherein the plurality of U-shaped permanent magnet accommodating grooves are arranged inside the rotor core at intervals; the plurality of first air grooves are provided outside the ends of the U-shaped permanent magnet accommodating grooves; and each first air groove is located on an extension line of the end of the corresponding U-shaped permanent magnet accommodating groove and is close to the outer contour of the rotor so as to form a plurality of first magnetic isolation bridges. Each first recess is recessed from the outer contour of the rotor towards the center of the rotor, starts from the end of the corresponding first magnetic isolation bridge at the outermost side of the rotor, and at most, extends to the first intersection point of the connecting line between the bottom center of the U-shaped permanent magnet accommodating groove and the center of the rotor, and the outer contour of the rotor, such that the air gap magnetic density generated between the outer contour of the rotor and the inner contour of a stator of the interior permanent magnet motor approaches a sine curve.
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公开(公告)号：US20240223028A1
公开(公告)日：2024-07-04
申请号：US18397124
申请日：2023-12-27
Applicant: Danfoss (Tianjin) Ltd.
Inventor： Guangqiang LIU , Li YAO , Yan LIN , Wanzhen LIU , Zhenyu WANG , Meng WANG
CPC classification number: H02K1/165 , F04C18/0215 , F25B31/026 , F04C2240/40 , H02K2213/03
Abstract: A stator lamination, an induction motor, a compressor and a refrigeration device wherein the stator lamination is annular, and an inner circumference of the stator lamination is provided with a plurality of stator teeth and a plurality of stator slots. The plurality of stator teeth and the plurality of stator slots are arranged alternately. The stator lamination defines a stator inner diameter D1, the number of the plurality of stator slots is Q1, each stator slot defines a stator slot depth H1, and the stator slot depth H1 meets a formula:
H
1
=
π
D
1
Q
1
*
k
.
Q1 is greater than or equal to 24, the value range of D1 is 95 mm to 105 mm, and the value range of k is 1.95 to 2.05.-
公开(公告)号：US20230299624A1
公开(公告)日：2023-09-21
申请号：US18005995
申请日：2021-06-04
Applicant: Danfoss (Tianjin) Ltd.
Inventor： Wanzhen LIU , Yusong SUN , Yan LIN , Li YAO
Abstract: A stator for a disk motor, a stator supporting ring and a compressor belong to the field of refrigeration technology. The stator includes a ring-shaped stator core including a plurality of ring-shaped or arc-shaped layers of magnetically conductive materials laminated on each other in a radial direction. In addition, the stator supporting ring is configured to fix a stator for a disk motor and has an inner wall fitted over a stator yoke of the stator. The compressor includes: a shell; a compression unit fixed within the shell; and a disk motor coupled with the compression unit. The disk motor includes: a rotor, and at least one stator fixed to the shell by the stator supporting ring.
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