JPH04194548A - Device for duct type air conditioning - Google Patents

Abstract

PURPOSE:To carry out comfortable cooling by providing a row of air flow- directing vanes in an air outlet which is placed below a beam at the periphery of the ceiling of the room and which, when used for cooling with the temperature of the supplied air below the average temperature inside the room, is designed to direct the supplied air toward the center of the ceiling by means of the air flow-directing vanes. CONSTITUTION:An air outlet 1 is positioned below a beam 5 at the periphery of the ceiling 4 and in such a way as to face the center of the ceiling 4 without obstruction by the beam 5 so that a current of cool air can be sent straight toward the ceiling in an easy manner by means of a row of air flow-directing vanes 3, that is, cooling of the ceiling can be practiced easily without interference of the beam 5. Therefore homogeneity in temperature can be maintained without excluding the walls and the floor and the indoor radiation is leveled so that the pleasantness of cooling is enhanced. The conditioned air flow once impinges against the ceiling 4 or flows in touch with it before it flows away; it loses most of its momentum as it descends in the living space and the rate of its flow lowers to what is almost undiscernible to a human sence, which effect also contributes to enhancement of sustained pleasantness of the cooling.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a duct air conditioner having an indoor air outlet for heating and cooling. For example, as shown in Figure 2, this air conditioner is used as an air conditioner installed in In duct air conditioner &
It is generally installed at the bottom of the beam 11 around the ceiling of the room, and the jet force from the entire outlet 10 is vertically blocked by the outlet 10 or the flow direction control plate 12 is installed inside the outlet 10.
However, during cooling operation, the airflow from the air outlet 10 is directed toward the ceiling by the upper pipe 11. It is difficult to blow air, and it is impossible even if the flow direction control board 12 is installed.During heating, the airflow is blown downward due to buoyancy, improving indoor comfort (on the contrary, during cooling, the airflow is directed vertically downward) Even if the air blows out horizontally, it falls relatively uniformly into the living area below, and as a result, the surrounding walls and floor are cooled down. Therefore, the comfort of the living area does not improve due to radiation from the ceiling, which remains in a relatively high temperature state during cooling.In other words, from the comfort point of view, the conventional air outlet 10 is insufficient. However, there is still room for improvement, and the air outlet was not optimal.The present invention was invented in view of the above-mentioned problems. The purpose of this invention is to provide a duct air conditioner that can provide comfortable cooling air conditioning. In the air outlet installed as above, the air outlet is located below a beam around the ceiling of the room, and is installed below the rice bowl so that the air outlet faces the center of the ceiling of the room. In the case of cooling operation in which the airflow is lower than the average temperature in the room, the airflow blown out by the wind direction control blade array provided at the outlet is configured to be blown toward the center of the ceiling. The effect of the configuration is as follows.
Two effects are expected: firstly, air is blown uniformly throughout the room at a predetermined temperature to the extent that the occupants do not feel any airflow, and secondly, in order to maintain uniformity of indoor comfort, the ceiling Uniform radiation from the low floor surface is achievable.

In other words, during cooling, when air is blown from the outlet at the bottom of the air conditioner as in the past, due to the influence of the beams and buoyancy, it is inevitably difficult for the jet to reach the ceiling. The air outlet is placed facing the center of the ceiling, avoiding the beams.The wind direction control blade rows allow cool air to be blown to the ceiling, and even the ceiling can be cooled, providing uniform radiation throughout the room. An embodiment of the present invention will be explained based on the attached drawings. Fig. 1 shows an example of an air conditioner according to an embodiment of the present invention provided with an air outlet. This is a diagram of the interior of the room. In Figure 1, 1 is the air outlet;
2 is a duct communicating with the air outlet 1, 3 is a wind direction control blade row 1
14 is a sky sign. 5 is a beam. Here, the wind direction control blade row 3 is arranged so as to face the center of the ceiling 4, avoiding the lower part of the beam 5. The effects and operations will be explained based on Fig. 1. In Fig. 1, a duct 2 is connected to the air outlet 1 provided in the side wall of the room toward the inside of the wall, and air at a predetermined temperature and air volume is supplied. This is because the air is blown into the room.
ζ A wind direction control blade row 3 is installed at the outlet 1, and air can be blown in any direction in the room. is located, and the air outlet 1 & 2 are provided so as to face near the center of the ceiling 4, avoiding the air 5, and the wind direction control blade row 3 blows cold air toward the ceiling 4. In other words, it is possible to easily cool the ceiling without being affected by the force transfer, which is generally difficult to blow cold air toward the ceiling 4 due to buoyancy.Therefore, - The temperature, including the floor surface, is maintained almost uniformly, and the radiation inside the room is also uniform, improving comfort.The airflow itself also collides with or contacts the ceiling 4 and flows.When it falls into the living area due to buoyancy, GEL
The airflow has almost lost its momentum, and the flow is so low that humans can barely feel it. Due to this effect, a high level of comfort is maintained. However, there are lighting equipment on the ceiling 4, and the airflow There is a possibility that condensation may form on the ceiling 4, where not only the direct low-temperature airflow from the air outlet 1 but also ambient high-temperature air is mixed in, or on lighting equipment, etc. It is also necessary to control the airflow using the wind direction control blade row 3 so that the airflow is as uniform as possible.In particular, when starting cooling operation, if there is a large temperature difference between the airflow from the outlet 1 and the surrounding air, increase the airflow rate. It is important to prevent condensation.

Of course, when starting air conditioning or immediately after entering the room, it is also effective to sequentially and variably control the wind direction control blade row 3 temporally or in conjunction with predicted/sensed indoor conditions so that the jet direction is directed directly toward the human body. After that, during normal operation, homogeneous air conditioning is performed by creating airflow toward the ceiling 4, which prevents condensation and makes it possible to maintain a very comfortable space from the start of air conditioning and continuously. In Fig. 1, the air outlet 1 is installed in the horizontal direction. Effects of the Invention According to the present invention, it is possible to provide a blowout device for an air conditioner that matches the installation space without reducing the air conditioning effect.According to the present invention, the blowout outlet is directed toward the center of the ceiling avoiding the beam By configuring the structure to allow air to be blown through the air conditioner, it is possible to create a comfortable space by cooling the ceiling during cooling operation and maintaining the homogeneity of indoor radiation. So feel the airflow LL
Uniform air conditioning throughout the room is possible.

1. Air outlet i 5. Base

Claims (1)

[Claims] In order to supply airflow having a predetermined temperature and flow rate through the duct, an air outlet is installed facing the interior of the room, and the air outlet is located below a beam around the ceiling of the room, and the air outlet is located in the center of the ceiling of the room. The airflow is installed below the beam so that the airflow outlet faces the air, and when the airflow is in a cooling operation where the temperature is lower than the average temperature in the room, the airflow blown out by the wind direction control blade row provided at the airflow A duct air conditioner characterized by being configured to blow air toward the center of the ceiling.