JPH027387Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a separate air conditioner, and particularly to a heat exchanger for an outdoor unit.

In recent years, as the prevalence of room air conditioners has increased, the locations where outdoor units can be installed have become more diverse, and it has become necessary to diversify the installation methods. In response to such demands, many outdoor units have been constructed as shown in FIG. In FIG. 1, reference numeral 1 denotes an outdoor unit main body which is divided into a compressor chamber 2 and a heat exchanger chamber 3. 4 is a blower, and 5 is a motor mount integrally formed on the back of the main body. Reference numeral 6 denotes an air suction port provided on the bottom surface of the main body 1, which is also provided on the back, top, and left side. 7 is a heat exchanger formed by winding a spine fin 8 having a large number of oblique fins, and a spiral heat exchanger 9 placed on the back of the unit and a drum-shaped heat exchanger placed to cover the blower 4. It is composed of a heat exchanger 10.

In the outdoor unit configured as described above, the conventional spiral heat exchanger 9 is constructed by concentrically winding the rounded corners of the four-sided corners, so the outer semicircle at the end of the rounded corners of the four-sided corners is wound. The roundness becomes much larger than the initial roundness, so when a spiral heat exchanger and a drum heat exchanger are combined as in the current unit structure, a gap is created between the four sides and the suction air is subjected to spine fin heat exchange. It entered through the gap without passing through the heat exchanger, and it was necessary to cover it with an inclusion to reduce the efficiency of the heat exchanger. However, the work required to cover the inclusions was difficult, and the location was on the back side of the unit, making the work difficult.

This invention was made in order to solve the above-mentioned problems, and aims to create a structure in which no gaps are created between the four sides even when the spine-fin heat exchangers 7 are combined.

Hereinafter, one embodiment of this invention will be explained with reference to the drawings. Fig. 2 shows a spiral heat exchanger 12 of this invention.
When the spine fin 8 is wound into a spiral shape, the center point 14 of the roundness 13 of the four-sided corner is moved to change the wrap margin 15.

As explained above, according to this invention, compared to the spiral heat exchanger 9 in which the roundness of the four-sided corners is wound concentrically, the wrap margin 15 is changed, so the outer semicircle 16 can be small, and the drum-shaped heat exchanger Even if the exchanger 10 and the spiral heat exchanger 12 are combined, there will be no gaps between the four sides, and since there is no need to cover them with inclusions, the number of work steps can be reduced, and the practical effect is great.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view of the outdoor unit of a separate air conditioner, Figure 2 is a diagram of a conventional spiral heat exchanger, and Figure 3 is a diagram of the spiral heat exchanger of this invention. It is. In addition, 8 is a spine fin, 10 is a drum-shaped heat exchanger, 11 is the roundness of the four-sided corner, 14 is the center point of the roundness, and 15 is the wrap length.

Claims (1)

[Scope of utility model registration request] In an outdoor unit of an air conditioner that combines a spiral heat exchanger and a drum heat exchanger, the center point of the roundness of the four-sided corners of the spiral heat exchanger is moved to change the wrap distance of the spine fins. An air conditioner characterized in that the drum-shaped heat exchanger and the spiral heat exchanger are completely fitted together by forming the four-way corners smaller than the outer semicircle of the spiral heat exchanger with concentric circles. heat exchanger.