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Refrigerant compressor and refrigeration appliance using same

A technology for compressors and refrigerants, used in mechanical equipment, machines/engines, liquid variable capacity machines, etc., can solve problems such as obstruction of valve opening, reduction of compressor efficiency, pressure loss, etc., to achieve noise reduction and reduction. Percussive sound, suppressing the effect of opening the delay

Inactive Publication Date: 2016-09-28
PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, due to the adsorption force of the refrigerating machine oil 2 that exists on the contact surface of the valve plate 17 and each valve, the opening operation of the valve is hindered, and this becomes resistance to the passing working refrigerant, which may cause pressure loss and reduce the efficiency of the compressor. question
[0018] In addition, when the valve plate 17 and the suction valve 20 and the valve plate 17 and the discharge valve 21 are closed, a knocking sound is generated, and the knocking sound leaks out of the airtight container to cause a problem of noise.

Method used

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  • Refrigerant compressor and refrigeration appliance using same
  • Refrigerant compressor and refrigeration appliance using same
  • Refrigerant compressor and refrigeration appliance using same

Examples

Experimental program
Comparison scheme
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no. 1 Embodiment approach

[0055] figure 1 It is a cross-sectional view of the refrigerant compressor according to the first embodiment of the present invention. figure 2 It is an exploded perspective view around the valve plate of the refrigerant compressor according to the first embodiment of the present invention. image 3 It is a sectional view of main parts of the refrigerant compressor according to the first embodiment of the present invention. Figure 4 It is a plan view of the suction valve of the refrigerant compressor of the first embodiment of the present invention. Figure 5 It is a plan view of the discharge valve of the refrigerant compressor of the first embodiment of the present invention. Figure 6 It is the suction side plan view of the valve plate of the refrigerant compressor concerning 1st Embodiment of this invention. Figure 7 It is a cross-sectional view of the surface treatment of the refrigerant compressor according to the first embodiment of the present invention.

[005...

no. 2 Embodiment approach

[0113] Figure 9 It is a sectional view of main parts of a refrigerant compressor according to a second embodiment of the present invention. Figure 10 It is a discharge side plan view of the valve plate of the refrigerant compressor concerning 2nd Embodiment of this invention.

[0114] The basic structure of this embodiment and the first embodiment of the present invention Figure 1 to Figure 5 are the same, so descriptions are omitted. Additionally, for Figure 1 to Figure 5 The same reference numerals are assigned to the same structures as those described in , and a part of the description is omitted.

[0115] In the refrigerant compressor of the present embodiment, at least the arm portion 121b of the valve plate 117 and the discharge valve 121 (refer to Figure 5 ) is formed with a synthetic resin film 160 in the contact area.

[0116] The synthetic resin film 160 uses a synthetic resin made of fluororubber as a binder 161 , and fluororesin as a solid lubricant 162 i...

no. 3 Embodiment approach

[0131] Figure 11 It is a schematic diagram showing the configuration of a refrigeration device according to a third embodiment of the present invention. Here, only the outline of the basic configuration of the refrigeration device will be described as a configuration in which the refrigerant compressor described in the first embodiment of the present invention or the second embodiment of the present invention is mounted on the refrigerant circuit.

[0132] Figure 11 Among them, the refrigeration device includes: a main body 201 with a heat-insulating box body with an opening on one side and a door structure for opening and closing the opening; a partition wall 207 that divides the interior of the main body 201 into a storage space 203 for articles and a mechanical room 205; And the refrigerant circuit 209 which cools the inside of the storage space 203.

[0133] The refrigerant circuit 209 has a structure in which the refrigerant compressor described in Embodiment 1 or Emb...

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Abstract

A synthetic resin film is formed on an area of a valve plate (117) that is in contact with an arm part of an intake valve (120), or an area of the valve plate (117) that is in contact with an arm part of a discharge valve (121). This minimizes lag in the opening of the intake valve (120) and the discharge valve (121) caused by the adsorptive force of refrigerator oil, and reduces pressure loss during the intake stroke and the discharge stroke, thereby improving compressor efficiency. The sounds of impact produced when the intake valve (120) or the discharge valve (121) closes are also reduced by the elastic effect of the synthetic resin film, thereby making the compressor less noisy.

Description

technical field [0001] The present invention mainly relates to techniques for improving efficiency and reducing noise of refrigerant compressors used in household refrigerators. Background technique [0002] In order to cope with the energy saving of household refrigerators, it is required to further improve the efficiency of refrigerant compressors by using inverters, variable speed operation realized by sensor control, and expansion of the range. [0003] As a conventional refrigerant compressor, there is a valve plate formed of a sintered metal material and arranged at the opening end of the cylinder, and a suction valve seat provided to surround the suction hole and a discharge valve seat provided to surround the discharge hole are provided. structure (for example, refer to Patent Document 1). [0004] Figure 22 It is a sectional view of the conventional refrigerant compressor described in the above-mentioned Patent Document 1, Figure 23 It is an exploded perspective...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/10
CPCF04B35/04F04B39/023F04B39/1066F04B39/1073F04B39/123
Inventor 大八木信吾石田贵规二上义幸
Owner PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE
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