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Airtight motor compressor and air conditioning equipment

An electric compressor, airtight technology, applied in the direction of electromechanical devices, electric components, machines/engines, etc., can solve the problems of large floating electrostatic capacity and insufficient reduction of leakage current, and achieve the effect of reducing leakage current

Active Publication Date: 2015-04-15
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when R32 is used as the refrigerant, even if an insulating member is provided between the coil and the stator core for insulation, the floating capacitance between the coil and the stator core will increase, and the leakage current cannot be sufficiently reduced.

Method used

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  • Airtight motor compressor and air conditioning equipment
  • Airtight motor compressor and air conditioning equipment
  • Airtight motor compressor and air conditioning equipment

Examples

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Embodiment 1

[0028] use Figure 1 to Figure 6 Example 1 of the present invention will be described. figure 1 It is a longitudinal sectional view showing the hermetic electric compressor of the first embodiment, which is a compressor provided in a refrigerant circuit constituting an air conditioner. That is, the air conditioner is an air conditioner in which a hermetic electric compressor, a condenser, an expansion valve, and an evaporator are sequentially connected in a ring shape to form a refrigerant circuit. In this embodiment, the refrigerant flowing through the refrigerant circuit is used Either of a single refrigerant of R32 or a mixed refrigerant containing 50% by weight or more of R32, and using the hermetic electric compressor of Embodiment 1 described below as the hermetic electric compressor constituting the above-mentioned refrigerant circuit machine.

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Abstract

The invention relates to an airtight motor compressor and air conditioning equipment, and the task is to reduce leakage current caused by floating electrostatic capacity between a coil and a stator core. The airtight motor compressor has, in an airtight container, a compressing mechanism part and a motor which drives the compressingmechanism part through a rotating shaft. In addition, a stator (7b) of the abovementioned motor has a stator core (23), a coil wound on the stator core and an insulating component (32) arranged between the abovementioned stator core and the abovementioned coil. The insulating component is formed by laminating multiple insulating sheets (32a, 32b), the insulating sheet (32a) of the abovementioned multiple insulating sheets at one side forms folded-back parts (32aa) at two axial end parts of the insulating sheet, and axial end parts of the insulating sheet (32b) of the abovementioned multiple insulating sheets at the side are inserted in the folded-back parts.

Description

technical field [0001] The present invention relates to a hermetic electric compressor and an air conditioner, and in particular to a component suitable for use as a refrigerating cycle of a refrigerating and air-conditioning device (such as an air-conditioning device, a refrigerator, a freezer, a refrigerating / freezing window, etc.), a heat pump hot water supply device, etc. Hermetic electric compressor. Background technique [0002] A motor for a compressor, comprising a rotor and a stator disposed radially outside of the rotor, the stator having a stator core, insulators disposed opposite to both axial end faces of the stator core, and the stator core and the insulator Both are wound with coils. Furthermore, the coil and the stator core are insulated by an insulating member. [0003] At present, R410A, which is widely used as a refrigerant for air conditioners, has a greenhouse effect coefficient of 2088, and it is desired to use a refrigerant with less environmental lo...

Claims

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Application Information

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IPC IPC(8): H02K3/34
CPCF04C23/02H02K3/345
Inventor 村上晃启渊野大我秋山智仁实川仁美田所哲也
Owner HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
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