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Refrigerant compressor

A technology for compressors and refrigerants, used in compressors, refrigerators, refrigeration components, etc., can solve the problems of large component space, high cost, wear and other problems, and achieve the effect of reducing space requirements and costs, solid support, and sound attenuation

Active Publication Date: 2015-04-01
SECOP GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This increased load leads to wear in the bearing sleeves and especially in the pin bearings, necessitating overdimensioning of the bearing sleeves or the compressor assembly
Therefore, greater component space must be required for the bearing housing or the compressor assembly
In addition, the cost of such bearings is relatively high

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0025] figure 1 is a schematic sectional view of the refrigerant compressor 1 . The refrigerant compressor 1 includes a compressor assembly 2 and an electric motor 3 , the electric motor 3 is an external rotor type electric motor, and the electric motor has an external rotor 4 and an internal stator 5 . The rotor 4 comprises permanent magnets 6 surrounded radially by short rings 7 . The rotor 4 is connected non-rotatably to a shaft 9 via a plate-shaped base 8 . The lower end of the shaft 9 is immersed in an oil pool not shown.

[0026] An annular air gap is formed between the rotor 4 and the stator 5 . The stator 5 comprises a stator lamination 10 and a winding 11 . Furthermore, the stator 5 includes an upper cover plate 12 and a lower cover plate 13 . The cover plates 12 , 13 include radially inwardly directed projections 14 which engage with correspondingly formed parts 15 of the protruding housing 16 of the stator lamination 10 .

[0027] The shaft 9 is supported radi...

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PUM

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Abstract

The compressor (1) has a compressor block (2), and an electric motor (3) comprising a stator (5) and a rotor (4) i.e. external rotor, and a bearing sleeve (17) for a shaft (9) arranged in a central opening. The sleeve is connected with the rotor in a torque proof manner. A roller is connected with an eccentric crankshaft journal (22) at an end that is turned toward the block. The block is axially supported at a support point (28) at the stator. The support point is axially arranged below a piston-cylinder-unit (25). The stator comprises a disk-shaped cover plate (12).

Description

technical field [0001] The invention relates to a hermetically sealed refrigerant compressor with a compressor assembly and an electric motor, the electric motor includes a stator and a rotor, wherein the rotor is of the outer rotor type, the bearing sleeve of the shaft is arranged in the central opening of the stator, and the shaft cannot be Rotationally connected to the stator, and the shaft is connected to the crank pin at the end facing the compressor assembly. Background technique [0002] In such refrigerant compressors, an eccentric crank pin is used for the purpose of driving a piston-cylinder unit provided in a cylinder assembly. [0003] Refrigerant compressors are used, for example, in refrigeration appliances like freezers, refrigerators and the like. In order to keep the required component space as small as possible, the component height of the refrigerant compressor should be kept as small as possible. Therefore, the component height of the motor needs to be ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B31/02
CPCF04B35/04F25B31/023F04B39/122F04B39/127
Inventor M·诺曼森F·H·艾弗森
Owner SECOP GMBH
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