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Compressors and Refrigeration Cycle Units

A refrigeration cycle and compressor technology, which is applied to valve devices, components of pumping devices for elastic fluids, control valves, etc. effect of risk

Active Publication Date: 2022-03-08
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In conventional compressors, the reed valve or the valve seat may be damaged by the impact when the reed valve is seated on the valve seat

Method used

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  • Compressors and Refrigeration Cycle Units
  • Compressors and Refrigeration Cycle Units
  • Compressors and Refrigeration Cycle Units

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0031] [Structure of Compressor 100]

[0032] figure 1 It is a schematic sectional view showing the compressor 100 according to Embodiment 1 of the present invention. The compressor 100 is, for example, a scroll compressor in which a low-pressure refrigerant is filled in a shell. The compressor 100 is, for example, a refrigeration cycle device 200 described later that is applied to refrigerators or freezers, vending machines, air conditioners, refrigerators, water heaters, and the like for refrigeration or air conditioning. The compressor 100 sucks and compresses the refrigerant circulating in the refrigeration circuit of the refrigeration cycle device 200 , and discharges it in a state of high temperature and high pressure.

[0033] Such as figure 1 As shown, the compressor 100 includes a housing 2 , an oil pump 3 , a motor 4 , a compression mechanism 5 , a frame 6 , and a shaft 7 . Furthermore, the compressor 100 includes a suction pipe 11 , a discharge pipe 12 , a subfr...

Embodiment approach 2

[0098] Figure 10 It is a top view showing valve seat 52A of compressor 100 according to Embodiment 2 of the present invention. Figure 11 yes Figure 10 The B-B line sectional view of the valve seat 52A. Figure 12 yes Figure 10 The C-C line sectional view of the valve seat 52A. In the compressor 100 of Embodiment 2, for the compressor 100 with Figure 1 to Figure 9 The parts with the same structure of the compressor 100 are marked with the same reference numerals and their descriptions are omitted. Figure 1 to Figure 9 The different characteristic parts of the compressor 100 will be described. in, Figure 10 ~ Figure 11 The shown X2 axis represents the short side direction of the valve seat 52A, the Y2 axis represents the long side direction of the valve seat 52A, and the Z2 axis represents the thickness direction of the valve seat 52A and the direction in which the reed valve 51 separates. The valve seat 52A is attached to the compression mechanism unit 5 . The va...

Embodiment approach 3

[0106] Figure 13 It is a plan view showing valve seat 52B of compressor 100 according to Embodiment 3 of the present invention. Figure 14 yes Figure 13 The D-D line sectional view of the valve seat 52B. Figure 15 yes Figure 13 A side view of the valve seat 52B. Figure 16 yes means Figure 15 A schematic cross-sectional view of the relationship between the valve seat 52B and the reed valve 51. In the compressor 100 of Embodiment 3, for the Figure 1 to Figure 12 The parts with the same structure of the compressor 100 are marked with the same reference numerals, and their descriptions are omitted. Figure 1 to Figure 12 The different characteristic parts of the compressor 100 will be described. in, Figure 13 ~ Figure 15 The shown X2 axis represents the short side direction of the valve seat 52B, the Y2 axis represents the long side direction of the valve seat 52B, and the Z2 axis represents the thickness direction of the valve seat 52B and the direction in which t...

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Abstract

The compressor includes: a casing; a compression mechanism part housed in the casing, constituting a compression chamber for compressing refrigerant, and having a discharge port for discharging refrigerant compressed in the compression chamber; and a discharge valve mechanism , is arranged in the discharge chamber formed between the casing and the compression mechanism part, and opens and closes the discharge port, and the discharge valve mechanism has: a valve seat, which is installed on the compression mechanism part, and forms a valve communicating with the discharge port A seat hole; and a reed valve having a fixed end installed on the compression mechanism and a front end that becomes a free end, and closes the valve seat when seated on the valve seat, and the valve seat is made of a material having a longitudinal elastic coefficient lower than that of the compression mechanism form.

Description

technical field [0001] The present invention relates to a compressor including a discharge valve mechanism for opening and closing a discharge port of a compression mechanism unit, and a refrigeration cycle apparatus including the compressor. Background technique [0002] A discharge port for discharging the refrigerant compressed in the compression chamber is formed in the compression mechanism portion of the scroll compressor. Furthermore, a discharge valve mechanism for opening and closing the discharge port is provided on the discharge chamber side of the fixed scroll that is a component of the compression mechanism (for example, refer to Patent Document 1). This discharge valve mechanism divides a high-pressure space on the discharge chamber side and a low-pressure space before refrigerant compression on the compression mechanism side using the fixed scroll. The discharge valve mechanism includes a reed valve and a valve seat provided around the discharge port on which...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/02F16K15/16
CPCF16K15/16F04B39/1073F04B35/04F04B39/1066F04C18/0215F04C23/008F04C29/128F05C2251/02F04C2210/26F04C2240/40
Inventor 今西俊贵小山修平
Owner MITSUBISHI ELECTRIC CORP