Refrigerant compressor

A technology for compressors and refrigerants, which is applied in the direction of compressors, refrigerators, adhesives, etc., and can solve problems such as reduced transmission power

Inactive Publication Date: 2019-10-25
NIDEC GLOBAL APPLIANCE GERMANY GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] A disadvantage of the prior art is that the overall delivery performance of the lubricant delivery system is reduced by the delivery height to be overcome by the lubricant, especially when taking lubricant from the lubricant sump

Method used

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Examples

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Embodiment Construction

[0030] figure 1 and figure 2 A first embodiment variant of a refrigerant compressor according to the invention is shown, which has a drive unit designed as an outer rotor, which is arranged inside a hermetically sealable compressor housing 6 . The drive unit includes a stator 3 and a rotor 4 . Arranged centrally with respect to the stator 3 and the rotor 4 is a crankshaft 1 with a longitudinal axis 2 which is non-rotatably connected, for example positively, frictionally or materially, to a carrier element 12 of the rotor 4 in order to A piston-cylinder unit 5 that periodically compresses refrigerant drives a refrigerant compressor. The crankshaft 1 is supported on a bushing 17 of a carrier housing 18 which carries the piston-cylinder unit 5 . On the outer side of the bushing 17 is fastened a stator 3 which is arranged on the inside in a radial direction (hereinafter also referred to as radial) with respect to the longitudinal axis 2 .

[0031] The crankshaft 1 is part of...

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Abstract

The invention relates to a refrigerant compressor, comprising: a preferably hermetically sealable compressor housing; an electric drive unit, comprising a rotor (4) and a stator (3); a crankshaft (1),which is connected to the rotor (4) for conjoint rotation and which has a longitudinal axis (2); a piston-cylinder unit, which can be driven by the crankshaft (1); wherein the electric drive unit isdesigned as an external rotor motor and the rotor (4) has a carrier element (12) extending outward radially with respect to the longitudinal axis (2) at least in some sections and the carrier element(12) is connected to the crankshaft (1) for conjoint rotation. According to the invention, in order to enable an increased delivery rate of lubricant from a lubricant sump together with preferably lowor reduced height of the compressor, a sleeve-shaped lubricant receiver (8) for centrifugally conveying lubricant from a lubricant sump formed in a bottom region of the compressor housing toward thepiston-cylinder unit is provided on a side of the carrier element (12) facing away from the piston-cylinder unit (5), the sleeve-shaped lubricant receiver (8) being joined to the carrier element (12)for conjoint rotation.

Description

technical field [0001] The invention relates to a refrigerant compressor having: a compressor housing, preferably hermetically sealable; an electric drive unit comprising a rotor and a stator; , a crankshaft with a longitudinal axis and a piston-cylinder unit drivable by the crankshaft, wherein the electric drive unit is configured as an external rotor motor and the rotor has load bearings extending radially outwards at least partially with respect to the longitudinal axis element and the carrier element is non-rotatably engaged on the crankshaft. Background technique [0002] Refrigerant compressors, in particular hermetically sealed refrigerant compressors, have been known for a long time and are mainly used in cooling appliances such as refrigerators or cold shelves. The refrigerant technology itself has likewise been known for a long time. Here, the refrigerant is heated by absorbing energy from the space to be cooled in the evaporator and finally superheated and passe...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F04B39/02F04B39/12
CPCF04B39/0253F25B31/002C09J2203/314C09J2423/106C09J7/38C09J7/405C09J2301/1242F04B39/023F04B39/0246F04B39/123F04B35/04F04B39/0094F04B39/0276F04B53/18F16N7/16F16N7/30F16N7/363F16N7/366F16N2210/10
InventorA·施魏格霍费尔W·克里斯佩尔
OwnerNIDEC GLOBAL APPLIANCE GERMANY GMBH