JPH06241489A - Air-conditioning machine provided with condensate preventing function - Google Patents

Abstract

PURPOSE:To provide an air-conditioning machine, not requiring any condensate preventing work for a drain tube related to the draining of condensate. CONSTITUTION:A saucer type drain pan 4 for receiving condensate is provided below a cooling coil 3 in an air-conditioning machine 1. A water-proof type film-shape temperature increasing heater 5 is attached to the flat part of the the drain pan 4 and, further, a switch A for cooling operation of the air- conditioning machine 1 is used both for the switch of the temperature increasing heater 5. The side wall of the drain pan 4 is provided with a drain tube 6, communicated with the outside of the air-conditioning machine 1 and used for draining condensate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and particularly to prevent dew condensation on a drain pipe when draining condensed water.

[0002]

2. Description of the Related Art Conventionally, when air is passing through a cooling coil in an air conditioner during cooling, condensed water generated by dew condensation on a wall of the cooling coil or the like is a drain provided below the cooling coil in the air conditioner. It is once received by a pan (condensed water receiving tray), and then drained outside the air conditioner by a drain pipe wrapped with a dew-proof material.

[0003]

As described above, the condensed water generated during the cooling operation is once received by the drain pan inside the air conditioner and then drained through the drain pipe. This condensed water has a low temperature (12 It was drained as it was. Therefore, there is a problem that moisture in the outside air is likely to condense around the drain pipe cooled by the discharged low temperature condensed water, especially in the rainy season when the temperature is high and the humidity is high and the summer season. Therefore, conventionally, measures such as wrapping a dew-proof material around the drain pipe were taken, but the construction cost increased by that amount, and sometimes the construction period was delayed due to the trouble of dew-proofing work. did. Therefore, the present invention is
It is an object of the present invention to provide an air conditioner that does not require dew condensation prevention work on drain pipes for draining condensed water.

[0004]

To achieve the above object, a temperature raising heater is provided in a drain pan for condensed water in an air conditioner, and a switch of the temperature raising heater and a cooling operation switch of the air conditioner are interlocked with each other. Configured to do so.

[0005]

In the present invention, since the condensate drain pan is provided with the temperature raising heater, it is possible to warm the low temperature condensate water generated during the cooling operation to raise the water temperature and discharge it to the drain pipe. Therefore, the moisture in the outside air is not cooled around the pipe wall of the drain pipe to cause dew condensation. Also,
Since the switch of the heating heater can be linked with the cooling operation switch of the air conditioner, the heating heater functions only during cooling operation where low temperature condensed water is generated, and the condensed water can be warmed. It is like this.

[0006]

EXAMPLE This example will be described with reference to the drawings. A fan 2 for blowing air is provided in the air conditioner 1. Further, a cooling coil 3 is provided adjacent to the fan 2. A flat pan-shaped drain pan 4 for receiving condensed water is provided below the cooling coil 3 in parallel with the bottom surface of the air conditioner 1. A thin film type waterproof type temperature rising heater 5 is attached in a flat shape on a flat portion of the flat surface inside the dish-shaped drain pan 4. As a result, the low temperature condensed water that drops into the drain pan 4 is heated by the heating heater 5. The temperature raising heater 5 does not raise the temperature in the air conditioner, but the water temperature (12 to 13
Since the temperature is raised only to the extent that dew condensation does not occur (about 2 ° C.), the one having a relatively small heat capacity is preferable. Further, the cooling operation switch A of the air conditioner 1 also serves as a switch for the temperature raising heater 5, and the temperature raising heater 5 automatically operates and warms up during the cooling operation.

A drain pipe 6 communicating with the outside of the air conditioner 1 is provided on the side wall of the drain pan 4, so that the temperature rise heater 5 does not cause dew condensation around the drain pipe 6 due to outside air. Warmed condensed water can be drained. Further, the present invention is not limited to the above embodiment, and for example, a heater for raising the temperature may be attached to the outer bottom surface of the drain pan 4 or the like. Further, the switch of the heating heater 5 is also used as the cooling operation switch A in the present embodiment, but the cooling operation switch A and the heating heater 5 switch are separately provided to be linked with the cooling operation. Alternatively, various methods may be adopted, such as releasing the interlocking and allowing only the temperature raising heater 5 to be manually switched.

[0008]

According to the present invention, since the low-temperature condensed water is heated in advance to the extent that dew condensation does not occur and then drained to the outside of the air conditioner through the drain pipe, the drain pipe is provided. No need for dew-proofing work. Therefore, since the conventional dew-proof work is unnecessary, the construction cost can be reduced, and the construction period associated with the installation work of the air conditioner can be shortened.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an air conditioner with a dew prevention function according to the present invention.

[Explanation of symbols]

 1 Air conditioner 4 Drain pan 5 Heater for heating

Claims (1)

[Claims] 1. A dew proof characterized in that a condensate drain pan in an air conditioner is provided with a temperature raising heater, and a switch of the temperature raising heater and a cooling operation switch of the air conditioner are interlocked with each other. Air conditioner with functions.