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Hermetic Rotary Compressor

A rotary compressor and rotary compression technology, which is applied to rotary piston machines, rotary piston pumps, rotary piston/swing piston pump components, etc., and can solve problems such as electric component failure and sliding part melting

Active Publication Date: 2016-06-29
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the temperature rises abnormally, the failure of the electric element or the melting of the sliding part will occur.

Method used

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  • Hermetic Rotary Compressor
  • Hermetic Rotary Compressor
  • Hermetic Rotary Compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the hermetic rotary compressor 1 of the embodiment, the electric element 4 is housed in the upper part of the internal space of the vertical cylindrical airtight container 2 made of steel plate, and the rotary shaft 8 driven by the electric element 4 is housed in the lower part. A rotary compressor formed by compressing the element 3 .

[0030] The airtight container 2 is composed of a container body 2A and a roughly bowl-shaped end cap (lid body) 2B. The container body 2A accommodates the electric element 4 and the rotary compression element 3. The end cap 2B closes the upper opening of the container body 2A. On the upper surface of the end cover 2B, a terminal (wiring is omitted) 6 for supplying electric power to an electric element (motor) 4 located on the inside and upper side of the airtight container 2 is attached. Further, a coolant discharge pipe 7 c...

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PUM

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Abstract

The present invention provides a sealed rotary compressor that can seal between a cover and a bearing without using a ring or the like. The upper bearing (16A) has a step portion (41). The edges of the step portion (41) are chamfered to form a chamfered portion (41A). The inner edge of the cover (21) is bent with a predetermined curvature to form a curved portion ( 47), the curved portion (47) is in contact with the chamfered portion (41A) of the step portion (41), and is supported upward by bolts in a state where the curved portion (47) is in contact with the step portion (41). The bolt fixing portion (44) of the cover (21) before the member (16) is fixed is set in a dimensional relationship separated from the upper support member (16).

Description

technical field [0001] The present invention relates to a hermetic rotary compressor in which an electric element and a rotary compression element are accommodated in an airtight container. Background technique [0002] Conventionally, such hermetic rotary compressors are constructed by accommodating an electric element (electric motor) and a rotary compression element driven to rotate by a rotating shaft of the electric element in an airtight container. The rotary compression element is usually composed of a cylinder, a roller, a blade, an upper supporting part and a lower supporting part in a vertical case. Rotating eccentrically in the cylinder, the blades contact the rollers to divide the cylinder into a low-pressure chamber side and a high-pressure chamber side. The upper and lower support members close the upper and lower opening surfaces of the cylinder and have bearings for the rotating shaft. [0003] In addition, the cover is fixed to the upper surface of the uppe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C29/06F04C18/356F04C27/00
CPCF04C23/008F01C21/10F04C18/356F04C27/008F04C2230/60
Inventor 斋藤隆泰西川刚弘吉田浩之比留间义明
Owner SANYO ELECTRIC CO LTD
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