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Electric compressor

An electric compressor and electric technology, which is applied in the direction of machines/engines, liquid fuel engines, mechanical equipment, etc., can solve problems such as hindering oil flow, falling into oil shortage, and oil level drop in the oil storage part, so as to prevent the oil level from falling , performance and reliability improvements

Inactive Publication Date: 2011-04-27
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, since the flow of oil returning to the lower oil reservoir from the oil return passage and the flow of refrigerant gas compressed by the rotary compression element and directed toward the upper refrigerant discharge pipe form opposing flows, the refrigerant gas spray The outflow may obstruct the flow of oil returning to the oil reservoir, the amount of ejection to the outside may increase, or the oil level in the oil reservoir may fall and become insufficient.

Method used

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  • Electric compressor
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Examples

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Embodiment 1

[0064] figure 1 It is a longitudinal sectional side view of a rotary compressor (electric compressor) to which an embodiment of the present invention is applied, figure 2 It is a side view of the stator of the electric element, image 3 yes figure 2 A top view of the stator. In the rotary compressor 10 of the embodiment, the electric drive element 14 and the rotary compression element 32 are housed in a vertical cylindrical airtight container 12 made of steel plates and arranged on the upper side of the inner space of the airtight container 12 . The rotary compression element 32 is arranged on the lower side of the electric element 14 and is driven by the rotating shaft 16 of the electric element 14 .

[0065] The airtight container 12 is made up of a container body 12A for accommodating the electric element 14 and the rotary compression element 32, and a substantially bowl-shaped end cap (cover body) 12B that closes the upper opening of the container body 12A. Accumula...

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Abstract

The invention provides an electric compressor. Since possibility of insufficient oil caused by a possible increase of an oil jet amount toward the external of an electric compressor and lowering of an oil face of an oil accumulating part exists, a rotating compressor (electric compressor) (10) receives an electric essential element (14) and a rotating compression element (compression element) (32) driven by the electric essential element (14) in a closed container (12), the electric essential element (14) is formed by a stator (22) provided with a stator winding (28) and a rotor (24) rotating in the stator (22), wherein, the rotating compressor (10) is provided with a cut (22) formed at the outer edge part of the stator (22), an oil drainback passage (80) is formed between the cut (22A) and the closed container (12), joints (29A, 29B)of coil terminals of the stator winding (28) are configured at positions deviate from the range of the cut (22A).

Description

technical field [0001] The present invention relates to an electric compressor in which an electric element and a compression element are housed in an airtight container. The electric element is composed of a stator having stator windings and a rotor rotating inside the stator. The compression element is driven by the electric element. Background technique [0002] Conventionally, in an electric compressor, for example, an internal high-pressure type rotary compressor in which an electric element and a rotary compression element are accommodated in an airtight container, the electric element is disposed on the upper side of the inner space of the airtight container, and the electric element is accommodated on the lower side. Rotary compression element driven by the rotary shaft of the electric element. The electric element is composed of a stator fixed to the inner surface of the airtight container and a rotatable rotor provided inside the stator, and the stator is provided ...

Claims

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Application Information

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IPC IPC(8): F04C29/00
Inventor 桥本彰铃木淳一小林真由美斋藤隆泰
Owner SANYO ELECTRIC CO LTD
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