JPS6118336Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an air conditioner equipped with an air vent valve at the heat medium outlet of a heat exchanger through which a heat medium such as cold water or hot water flows.

Usually, this type of air conditioner is constructed as shown in FIG. That is, 1 is a main body having an inlet (not shown) and an outlet 2, 3 and 4 are a heat exchanger and a blower housed in the main body 1, and 5 is a part from the heat exchanger 3 below the heat exchanger 3. This drain tray is arranged to receive the drain, and is exposed outwardly from one end of the heat exchanger 3, and a discharge port 5b is provided in this portion 5a. 6a, 6b
7 is the inlet and outlet piping for a heat medium such as cold water or hot water connected to the heat exchanger 3 via joints 3a and 3b, and 7 is an air vent valve provided at the outlet side joint 3b of the heat exchanger 3. This is to release the air contained in the air to the outside. A drain tube 8 is connected to the air vent valve 7 and guides air and a portion of the heat medium in the heat exchanger 3 and the pipes 6a and 6b to the exposed portion 5a of the drain pan 5 during air venting work.

In such a configuration, when cold water is passed through the heat exchanger 3, condensate adhering to the heat exchanger 3 flows down into the drain tray 5, and during air purge work, the heat medium discharged from the air purge valve 7 flows through the drain tube 8.
The water flows down to the drain tray 5 through the drain pipe 9 and is discharged outside the main body 1 through the drain discharge pipe 9.

Conventionally, when such an air conditioner is installed embedded in a wall or ceiling, dirt and the like fall onto the exposed portion 5a of the drain tray 5, and the drain discharge pipe 9
This caused drain water to overflow and stain the floor etc. In addition, the drain tube 8 is made of a relatively flexible material such as a vinyl tube, and is inserted into the drain plate 5 with the end on the side of the drain plate 5 free, so that the air vent valve 7 is closed during air venting work. The drain tube 8 was vibrated by the air pressure discharged from the drain tray 5, and the heat medium came out of the machine, staining the floor etc.

This invention was made to eliminate the above-mentioned drawbacks, and one embodiment of this invention will be described below. In FIGS. 2 and 3, reference numeral 10 is a removable cap made of a thin plate that covers the upper opening of the exposed portion 5a of the drain dish 5.
A contact portion 10b is formed at the end of the top surface 10a of the device 0. The contact portion 10b comes into contact with the side surface of the main body 1 when the cap 10 is placed on the cap 10. Reference numeral 11 denotes a connection portion having a connection port 11a formed by expanding a notch provided on the top surface 10a of the cap 10 to the front side by a predetermined length. Since the drain tube 8 is formed to be small, when the drain tube 8 is inserted into the connection port 11a, it is held with a relatively strong fit. Note that the cap 10 may be molded from transparent resin.

As described above, in this design, the cap prevents dirt from entering the drain pan, and the drain tube connected to the air vent valve is inserted and fixed into the connection port formed in the cap, so when air venting is performed, It will not come off the drain tray due to vibrations caused by the air discharge pressure, thus preventing the floor from becoming dirty.

[Brief explanation of the drawing]

Figure 1 is a schematic front sectional view of the air conditioner;
The figure is a perspective view of a cap showing the main parts of this invention, and FIG. 3 is a perspective view of the cap when it is placed over a drain tray. Note that the same reference numerals in the figures indicate the same or equivalent parts. In the figure, 3 is a heat exchanger, 4 is a blower, 5 is a drain tray, 7 is an air vent valve, 8 is a drain tube, 10 is a cap, and 11 is a connection part.

Claims (1)

[Scope of utility model registration request] a heat exchanger, a blower that blows air to the heat exchanger, a drain plate that is exposed outwardly from one end of the heat exchanger so as to receive the drain from the heat exchanger, and The exchanger is equipped with an air vent valve provided at the heat medium outlet portion of the exchanger, and a drainage tube that guides drainage from the air vent valve to the exposed portion of the drain tray, and the top opening of the exposed portion of the drain tray is provided. An air conditioner comprising a cap for covering the air conditioner, characterized in that a notch on the upper surface of the cap is bulged out to form a connection port for the drainage tube.