Unlock instant, AI-driven research and patent intelligence for your innovation.

Four-port conversion value and freezing circulation using the same

A technology of circulation device and switching valve, applied in valve device, multi-way valve, fluid circulation arrangement, etc., can solve the problems of refrigerant flow disorder, narrow width, refrigerant shrinkage, etc., to improve energy saving, efficiency, The effect of suppressing thermal movement

Active Publication Date: 2013-03-27
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the high-temperature refrigerant and the low-temperature refrigerant are close to the connection port of the refrigerant outlet (the connection port on the low-pressure side and the connection port on the outdoor side during cooling operation), since the width of the flow path is narrow, the flow of the refrigerant is constricted.
Therefore, the flow of the refrigerant is disturbed on the valve plate surface of the base near the connection port serving as the refrigerant outlet, and since the flow velocity increases, there is a possibility that heat conduction is promoted.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Four-port conversion value and freezing circulation using the same
  • Four-port conversion value and freezing circulation using the same
  • Four-port conversion value and freezing circulation using the same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0037] Refer below Figure 1 to Figure 6 and Figure 13 and Figure 14 The four-way switching valve according to the first embodiment of the present invention will be described in detail. In this embodiment, the case where an air conditioner is assumed to be a refrigeration cycle apparatus is shown.

[0038] figure 1 It is a figure which shows the structure at the time of cooling operation of the four-way switching valve which concerns on embodiment of this invention, and the air conditioner using it. figure 2 It is a figure which shows the structure at the time of heating operation of the four-way switching valve of this embodiment, and the air conditioner using it. image 3 It is a perspective view showing the valve body 10, the valve base 12, and the connection port provided inside the valve base 12 in this embodiment. Figure 4 It is a cross-sectional view showing the valve base 12 and the valve body 10 of this embodiment, and is a plan view showing the annular groov...

no. 2 approach

[0064] Refer below Figure 7 Next, a four-way switching valve according to a second embodiment of the present invention will be described. Figure 7 It is a figure which shows the four-way switching valve of 2nd Embodiment of this invention. The four-way switching valve of the present embodiment is composed of a valve body 1 , a valve base 12 , a valve body 10 , and a resin plate 23 with low thermal conductivity that covers a valve plate surface 13 of the valve base 12 .

[0065] The flange part 10a of the valve body 10 of this embodiment is the same as Figure 13 The same structure of the prior art, shorter than the first embodiment. In addition, the bowl-shaped portion 10b of the valve body 10 uses the same bowl-shaped portion as that of the first embodiment, and its shape is such that a concave portion is provided on the outer surface in the short side direction of the valve body 10 (similar to the Figure 5 The shape of the recess shown is the same configuration). The w...

no. 3 approach

[0070] Second, refer to Figure 8 and Figure 9 Next, a four-way switching valve according to a third embodiment of the present invention will be described. Figure 8 It is a diagram in which the diameters of the holes 14 a and 14 b of the flange portion of the valve body 10 are reduced in comparison with the four-way switching valve of the first embodiment. Therefore, the flange portion 10a of the valve body 10 covers a portion on the side close to the bowl-shaped portion 10b of the opening on the valve plate surface 13 of the connection port provided in the valve base (due to the diameter of the hole in the flange portion Shrunk, so it covers part of the connection port that forms the opening).

[0071] Switching between the cooling operation and the heating operation is performed by controlling the pressures of the high-pressure chamber R1 and the spaces R2 and R3 at both ends thereof with the piston inside the valve body 1 as described above. The pilot valve 18 makes th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a four-way converting valve and a freezing circulating device with the four-way converting valve. In the four-way converting valve, the flow paths of the high-temperature refrigerant and low-temperature refrigerant abut against with each other. The heat movement is generated through the forming components thereby becoming the reason of heat loss. The structure of four-way converting valve is that a material with a thermal coefficient lower than the material forming a valve surface (3) is covered at periphery of each opening of a low-pressure side connecting opening (7), a first connecting opening (9) and a second connecting opening (8) which are formed on the valve piece surface that is used as a lower surface of a valve base (12) of four-way converting valve (1). Furthermore, the material which covers the valve piece surface and has a lower thermal coefficient is formed by one part (10a) of the valve body (10) that is provided with a bowl-shaped part (10b) and a flange part (10a). The flange part is provided with two holes which become the flow path of high-temperature refrigerant and slides on the valve piece surface. Additionally, the valve piece surface is covered by a material with low thermal coefficient, and furthermore the top perimeter of bowl-shaped part of valve body is planar or concave.

Description

technical field [0001] The present invention relates to a four-way switching valve used in a refrigerating cycle and a refrigerating cycle device equipped with the same, and more particularly to a four-way switching valve suitable for controlling heat transfer from a high-temperature refrigerant to a low-temperature refrigerant. Background technique [0002] Conventionally, there is known a refrigerating cycle device that uses a four-way switching valve provided in the refrigerating cycle to switch the refrigerant flow path, that is, Figure 13 device constructed as shown. Figure 13 It is a configuration diagram showing an air conditioner related to the prior art and a four-way switching valve included therein. [0003] Figure 13 In the shown four-way switching valve 1, a high-pressure side connection port 6 is arranged on one side surface of a cylindrical valve body 1, and a low-pressure side connection port 7 is arranged adjacent to the side surface on the opposite side t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F25B13/00F25B41/04F16K11/02
CPCF25B13/00F25B2313/0292F25B2313/02741F25B41/20
Inventor 国眼阳子关谷祯夫宫崎则夫
Owner HITACHI JOHNSON CONTROLS AIR CONDITIONING INC