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Sliding switching valve and refrigeration cycle system

A switching valve and sliding type technology, which is applied in sliding valves, fluid circulation arrangements, and compression machines with reversible circulation, etc., can solve problems such as poor pressure switching, reduced fluid flow, and increased fluid flow resistance.

Active Publication Date: 2019-11-05
SAGINOMIYA SEISAKUSHO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the conventional slide-type switching valve described in Patent Document 1, the abnormal increase in pressure during mode switching and the improvement of switching failures are achieved, but the flow rate of the high-pressure side fluid in the cooling mode and heating mode decreases. possibility of
That is, as described above, the flange portion of the valve member is extended in the sliding direction, whereby in the heating mode, a part of the indoor port is covered by one flange portion, and in the cooling mode, a part of the outdoor port is covered. Covered by the flange on the other side, the flow path resistance of the high-pressure side fluid from the inflow port to the indoor side port and the outdoor side port increases.

Method used

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  • Sliding switching valve and refrigeration cycle system
  • Sliding switching valve and refrigeration cycle system
  • Sliding switching valve and refrigeration cycle system

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Embodiment Construction

[0035]Next, embodiments of the present invention will be described with reference to the drawings. The refrigerating cycle 1 of this embodiment is used in an air conditioner such as a room air conditioner, and includes a compressor 2 for compressing a refrigerant, an outdoor heat exchanger 3 serving as a first heat exchanger that functions as a condenser in the cooling mode, In the cooling mode, the indoor heat exchanger 4, which is the second heat exchanger, functions as an evaporator, and the expansion mechanism, which is the expansion mechanism that expands the refrigerant between the outdoor heat exchanger 3 and the indoor heat exchanger 4 to depressurize it. The expansion valve 5 , the four-way switching valve 10 as a sliding switching valve, and the pilot solenoid valve 6 for switching and controlling the flow path of the four-way switching valve 10 are connected through refrigerant piping. In addition, the expansion mechanism is not limited to the expansion valve 5, and...

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PUM

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Abstract

The present invention provides a sliding switch valve and a refrigeration cycle system capable of suppressing a decrease in a flow rate of a high-pressure-side fluid in a cooling mode and a heating mode. A four-way switching valve (10) includes a cylindrical valve main body (11) and a valve element (12) slidably provided in the valve main body (11). The valve member (24) of the valve element (12) has a bowl portion (25) and a flange portion (26), and the flange portion (26) is provided with a thick-wall portion (27) that is formed in a thick-wall shape around the bowl portion (25) and a thin-wall portion (28) that extends from the thick-wall portion (27) toward one side and the other side in the axial direction. The thin-wall portion (28) is formed thinner than the thick-wall portion (27).

Description

technical field [0001] The invention relates to a sliding switching valve and a refrigeration cycle system. Background technique [0002] At present, as a refrigeration cycle used in air conditioners such as room air conditioners, a refrigeration cycle in which the circulation direction of the refrigerant is reversed is used so that the refrigerant passes through the compressor and the outdoor heat exchanger during the cooling mode (cooling) operation. , expansion valve, and indoor heat exchanger to circulate to the compressor, and when the heating mode (heating) operates, the refrigerant flows to the compressor through the compressor, indoor heat exchanger, expansion valve, and outdoor heat exchanger circulation. As such a flow path switching valve (so-called four-way switching valve) that reverses the circulation path of the refrigerant in the refrigeration cycle, a sliding type switching valve provided with a slidable valve element inside the valve body is widely used. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K11/065F16K3/314F25B13/00F25B41/04F25B41/06
CPCF16K3/314F16K11/0655F25B13/00F25B2313/02741F25B41/20F25B41/31F25B41/37
Inventor 上野知之木村宏光冈田聪小泉怜
Owner SAGINOMIYA SEISAKUSHO INC