JPH06207739A - Condensation prevention device for air conditioner - Google Patents

Abstract

PURPOSE:To prevent the vicinity of a damper in a fan duct corresponding to the inside of a room under interruption from being covered with condensed water by heating of a heater provided in the vicinity of the damper. CONSTITUTION:After starting of a cooling operation, air conditioning control means 3 provided in a body portion 102 controls an air conditioning fan 106 and a heat exchanger 107 and instructs damper opening/closing/heating means 2 of a fan duct 104 corresponding to the inside 103 of a room under operation to open a damper 110, and instructs damper opening/closing/heating means 2a, 2b of fan ducts 104a, 104b corresponding to the insides 103a, 103b of rooms under operation interruption to fully close the dampers 110a, 110b and heater units 1a, 1b to heat. Thus, the dampers 110a, 110b corresponding to the insides 103a, 103b of the rooms under operation interruption are prevented from being covered with condensed water by heating of the heater units 1a, 1b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed in the ceiling above and has a plurality of air ducts for controlling air conditioning in each room.
The present invention relates to a dew condensation preventing device for an air conditioner having a damper provided in each of the air ducts.

[0002]

2. Description of the Related Art Recently, in an apartment house such as a high-rise condominium, a ventilation duct branched from one air conditioner is used.
It is required to control the air conditioning in each room.

The structure of a conventional dew-prevention device for an air conditioner, which has a damper inside a ventilation duct for blowing air into each room, will be described with reference to FIG.

As shown in the figure, the main body 102 of the air conditioner provided in the ceiling 101 is provided in each of the rooms 103, 103.
air ducts 104, 104a, 104 to a, 103b
b are connected to each other, and one of them is connected to each room 103, 103
Blow-out port 1 opened on the ceiling or wall surface on the side of a, 103b
05, 105a, 105b, respectively.

Inside the main body 102, an air conditioning fan 106 for blowing air into the room, a heat exchanger 107 for cooling and heating the air blown into the room, and an air conditioning fan 106 for operation and the like. And an air conditioning control means 108 for controlling the heat exchanger 107.

In addition, each of the chambers 103, 103a, 10
3b is provided with remote control switches 109, 109a and 109b (hereinafter, referred to as remote controllers) for individually operating / stopping air conditioning control in each room and adjusting temperature / air volume, and the air conditioning control means of the main body 102. 1
08 is connected by a communication line.

The air ducts 104, 104a,
A damper 11 for adjusting ventilation to the room is provided in 104b.
0, 110a, 110b are provided, and the damper 11
0, 110a, 110b are damper opening / closing means 111, 111a,
111b, respectively.

In the above structure, when only the remote control 109 in the room 103 is operated, the air conditioning control means 108 inside the main body 102 receives the information from the remote control 109 and causes the damper opening / closing means 111 of the blower duct 104 to the damper 110. The air conditioning fan 106 and the heat exchanger 107 are controlled to control the air conditioning of the room 103.

In this case, when the remote controllers 109a and 109b of the indoors 103a and 103b are stopped, the air conditioning control means 108 causes the damper opening / closing means 111a and 11b.
1b does not give a command to open the damper, that is, the dampers 110a and 110b are closed.

When the main body 102 is in the cooling operation, if the above-mentioned state exists, that is, the room 103 in operation and the rooms 103a and 103b in the stopped state exist, the air in the ventilation ducts corresponding to the stopped room is changed. Damper 110a, 1
Condensation had occurred in the vicinity of 10b.

That is, the cool air from the main body 102 passes through the blower duct 104, passes through the opened damper 110, and cools the room 103 from the blowout port 105.

Further, this cold air is sent to another ventilation duct 104.
It is sent to the dampers 111a and 111b in a and 104b.

However, since the remote controllers 109a and 109b of the indoors 103a and 103b are stopped, the dampers 111a and 111b are not opened, and the cold air is indoors 103.
a and 103b are not sent.

Therefore, the blower ducts 104a, 10a
The dampers 111a and 111b in the inside of 4b cause a difference between the cool air on the main body side and the room temperature to easily cause dew condensation on the room side, and as the cooling operation time continues, water droplets are formed to form the ventilation duct. There was a risk that they would accumulate in 104a and 104b.

Therefore, if the cooling operation continues for a certain period of time or more, the air conditioning control means 108 temporarily lowers or stops the capacity of the cooling operation, and performs the blowing operation for a certain period of time, whereby the dampers in the blower ducts 104a, 104b are 111a,
Water droplets generated in the vicinity of 111b were evaporated to prevent dew condensation in the air duct.

[0016]

In such a conventional dew condensation preventing device for an air conditioner, the cooling operation must be temporarily stopped, and dew condensation may occur depending on the room temperature condition, and the ducts 104a and 104b. Inside the room 1
When water drops drop on 03a, 103b or stop during dew condensation prevention operation, the water drops cannot be evaporated sufficiently, and the water drops remaining in the duct easily cause mold. there were.

The present invention is intended to solve the above-mentioned problems. In the cooling operation, the capacity for preventing dew condensation is not reduced or stopped, and stable cooling air is blown into the operation room while the operation is stopped. It is an object of the present invention to provide a dew condensation preventing device for an air conditioner that prevents dew condensation in the vicinity of a damper in a ventilation duct.

[0018]

In order to achieve the above-mentioned object, a dew condensation preventing device for an air conditioner according to the present invention is provided with a main body of an air conditioner installed on a ceiling or the like, and connected to the main body. A blower duct for blowing air into the room, an openable / closable damper provided in the blower duct, a heater unit for heating and heating the damper, and a damper opening / closing / heating means for controlling the opening / closing of the damper and heating control of the heater unit. And an air conditioning fan provided inside the main body for blowing air through the air duct into the room, and a heat exchanger for cooling and heating the air blown by the air conditioning fan. Air-conditioning control means for controlling the air-conditioning fan, the heat exchanger, and the damper opening / closing / heating means according to information such as temperature, air volume, and the like are provided.

[0019]

The present invention has the above-mentioned structure during the cooling operation.
The air-conditioning control means provided inside the main body section issues a command to the damper opening / closing / heating means for the opening of the damper in the blower duct that blows air into the room of the remote controller having operation information, and the remote controller having stop information. The damper opening / closing / heating means is instructed to fully close the damper and heat the heater unit in the blower duct for blowing air into the room.

In this way, each damper in the air duct for blowing air into each room which is stopped during the cooling operation is heated by each heater unit.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

The same parts as those of the conventional example are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in the figure, the dampers 1 are respectively installed in the air ducts 104, 104a, 104b.
10, 110a, 110b and heater units 1, 1
a and 1b are provided, and the dampers 110 and 110 are also provided.
a, 110b open / close control and heater unit 1,
The heating control of 1a and 1b is performed by damper opening / closing / heating means 2 and 2
a and 2b respectively.

Inside the main body 102, the dampers 110, 110a, 110b are controlled by controlling the air-conditioning fan 106 and the heat exchanger 107 or individually communicating with the damper opening / closing / heating means 2, 2a, 2b. Air-conditioning control means 3 is provided for issuing commands for opening / closing control of the heaters and heating control of the heater units 1, 1a, 1b.

In the above structure, when only the remote control 109 in the room 103 performs the cooling operation, the main body 102
The air conditioning control means 3 provided inside the
Based on the cooling operation information, the command for opening the damper 110 is issued to the damper opening / closing / heating means 2 of the blower duct 104, and the air conditioning fan 106 and the heat exchanger 107 are controlled.

Further, since the remote controllers 109a and 109b of the interiors 103a and 103b are stopped, the air conditioning control means 3 causes the damper opening / closing / heating means 2a and 2b of each of the air ducts 104a and 104b to have a heater unit 1a, 1b heating control and dampers 110a, 1
It issues a command to fully close 10b.

In this way, by heating only the fully closed dampers 110a, 110b in the blower ducts 104a, 104b corresponding to the stopped room during the cooling operation in a room, the heater units 1a, 1b are heated. It is possible to prevent dew condensation near the damper.

[0027]

As is apparent from the above embodiments, according to the present invention, the heating control of the heater unit provided in the damper in the ventilation duct corresponding to the stopped room is performed during the cooling operation. Thus, it is possible to prevent dew condensation in the vicinity of the damper.

In addition, since the capacity of the cooling operation is not temporarily reduced or stopped in the operating room, stable and fine air conditioning control can be performed.

From the start of the cooling operation, the damper in the blower duct corresponding to the inside of the stopped room is heated by the heater, so that water drops hardly remain in the blower duct due to indoor temperature conditions or the stop of the cooling operation. It is possible to provide a dew condensation preventing device for an air conditioner that can suppress the generation of mold and the like.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a dew condensation prevention device for air-conditioned air according to an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a conventional condensation prevention device for an air conditioner.

[Explanation of symbols]

 1 Heater unit 1a Heater unit 1b Heater unit 2 Damper opening / closing / heating means 2a Damper opening / closing / heating means 2b Damper opening / closing / heating means 3 Air conditioning control means 102 Main body section 104 Air duct 104a Air duct 104b Air duct 106 Air conditioning fan 107 Heat exchanger 110 damper 110a damper 110b damper

Claims (1)

[Claims] 1. A main body of an air conditioner installed on the ceiling or the like, a blower duct connected to the main body for blowing air into each room, an openable / closable damper provided in the blower duct, and the damper. A heater unit for heating and warming, a damper opening / closing / heating means for performing opening / closing control of the damper and heating unit heating control, and an air-conditioning fan provided inside the main body for blowing air through the air duct to the room, It is equipped with a heat exchanger that cools and heats the air blow of the air conditioning fan, and the air conditioning fan, heat exchanger, damper opening and closing, and heating means can be selected based on the information such as operation / stop and temperature / air volume from the remote control switch in each room. A dew condensation prevention device for an air conditioner, which is provided with an air conditioning control unit for controlling.