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scroll compressor

A technology of scroll compressors and compression units, which is applied in the direction of rotary piston machines, rotary piston pumps, mechanical equipment, etc., and can solve the problems of reduced cooling performance of refrigerant flow, overheating of windings at the upper end of stators, overheating of motors, etc.

Active Publication Date: 2021-05-18
DANFOSS COMML COMPRESSORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, when a low-density refrigerant such as R32 is used, the cooling performance of the refrigerant flow is reduced compared to conventional refrigerants with higher density such as R410A
Therefore, during high motor loads there is a problem of motor overheating, especially the upper winding of the stator

Method used

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Examples

Experimental program
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Embodiment Construction

[0086] figure 1 A scroll compressor 2 is shown comprising a closed casing 3 comprising an outer casing 4 , an upper cover 5 and a base plate 6 . Such as figure 1 As shown, the outer housing 4 is cylindrical and includes an upper end closed by an upper cover 5 and a lower end closed by a base plate 6 . According to the embodiment shown in the figures, the outer housing 4 has a constant diameter over its entire length.

[0087] The scroll compressor 2 also includes a refrigerant suction port (not shown in the figure) and a discharge port 8, and the refrigerant suction port is arranged on the outer shell 4 and is configured to supply the scroll compressor 2 with refrigerant to be compressed. Refrigerant, the discharge port is configured to discharge compressed refrigerant. For example, the discharge port 8 may be provided on the upper cover 5 .

[0088] The scroll compressor 2 also includes a support frame 9 and a compression unit 11, the support frame 9 is arranged in the en...

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PUM

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Abstract

The invention discloses a scroll compressor (2), comprising: a closed casing (3), the closed casing (3) including an outer shell (4); a compression unit (11), the compression unit (11) arranged Inside the enclosure (3); an electric motor (21) configured to drive the compression unit (11), the electric motor (21) comprising a rotor (22) and a stator (23); and an inner housing (26) in which the electric motor (21) is arranged. A baffle (34) is arranged within the inner housing (26) at the stator end winding (25) of the electric motor (21), the baffle (34) comprising deflection means configured to At least a portion of the main refrigerant flow flowing within the inner casing (26) is deflected towards the stator end windings (25).

Description

technical field [0001] The invention relates to a scroll compressor, in particular to a hermetic scroll compressor. Background technique [0002] US5533875 discloses a scroll compressor, comprising: [0003] - an enclosure comprising an outer shell; [0004] - a compression unit arranged inside the enclosure; [0005] - an electric motor configured to drive the compression unit, the electric motor comprising a rotor and a stator arranged around the rotor and defining a circular gap between the rotor and the stator; and [0006] - an inner housing in which the electric motor is arranged, the outer flow channel being formed between the outer surface of the stator and the inner surface of the inner housing, and [0007] The scroll compressor is configured such that, in use, the primary refrigerant flow flows inside the inner housing from the lower end of the motor towards the upper end of the motor. Specifically, the main refrigerant flow includes a first refrigerant flow p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/02F04C23/02F04C29/04H02K1/20H02K9/19
CPCF04C18/0215F04C23/02F04C29/045H02K1/20H02K9/19F04C23/008F04C2210/22F04C2240/40
Inventor 阿兰·拉维尔朱利安·赖维大卫·吉纳夫欧斯
Owner DANFOSS COMML COMPRESSORS