JPH074734A - Underfloor air conditioning system - Google Patents

Abstract

PURPOSE:To provide an under floor air conditioning system which can provide a further uniform temperature distribution for blown out air from respective blow-out ports by moving air streams of air conditioning air under a floor by orientation, and at the same time, the operation of which is simple. CONSTITUTION:An underfloor air conditioning system is constituted in such a manner an air blowing unit 15 is equipped on a free access floor 6, and the adjustment of the angle of the air blowing unit 15 can be performed from an indoor 19 side by a rotary sliding part 17 so that the air blowing unit 15 can turn to an optional direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor air conditioning system for blowing underfloor air conditioning air into an ambient space.

[0002]

2. Description of the Related Art In recent years, in an office building, a space under the floor is formed, conditioned air is supplied to the space, and the conditioned air is blown into the room from an outlet provided on the floor to perform the air conditioning in the room. Air conditioning is increasing.

Conventionally, this type of underfloor air conditioning system has a structure as shown in FIG. The conditioned air from the air conditioner 101 passes through the underfloor space 103 formed in the lower part of the free access floor 102, blows out into the room 105 from the air outlet 104 provided in the free access floor 102, and the room 105 is air-conditioned. There is.

[0004]

In such a conventional underfloor air conditioning system, the air conditioner 101 is connected to the access floor 1.
The airflow of the conditioned air blown into the underfloor space 103 below 02 is unevenly generated as shown in FIG.
There was a problem that an air pool A portion was generated in a corner portion of No. 3, and the air flow from the outlet 104 and the temperature distribution became non-uniform.

The present invention solves the above problems. By changing the direction of an underfloor blower unit from the indoor side, the underfloor airflow is oriented in an arbitrary direction, and the airflow from individual outlets is more uniform. A first object of the present invention is to provide an underfloor air-conditioning system that can achieve a wide temperature distribution.

A second object is to forcibly move the conditioned air by the duct to realize a more uniform temperature distribution.

[0007]

A first means for achieving the first object of the present invention is to provide an electric motor inside an outer shell having an intake port on a side surface and a discharge port on a side surface opposite to the intake port in an underfloor. And a fan unit directly connected to the fan unit, a shaft serving as a rotary shaft is connected, and a rotary sliding portion provided on the shaft is fitted in a through hole formed in a free access floor. It is a thing.

A second means for achieving the second object is a structure in which a duct having elasticity and flexibility is connected to the intake port and the discharge port of the blower unit.

[0009]

According to the present invention, by the configuration of the above-mentioned first means, the airflow of the conditioned air from the air conditioner can be spread to every corner of the underfloor by changing the direction of the blower unit under the floor from the indoor side. The temperature distribution inside the room can also be made uniform by ejecting the air from the air outlet with a uniform temperature distribution.

Further, by the constitution of the second means, the conditioned air blown out from the air conditioner is forcibly moved from the vicinity of the air conditioner to the corner portion of the air reservoir by the direct duct, so that a more uniform temperature distribution is obtained. Can be ejected from the outlet.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
This will be described with reference to FIG. As shown in the figure, in an air conditioner 3 in which a heat exchanger 1 and a blower 2 are arranged, an intake port 4 is provided in an upper part, and an underfloor space communicating with an underfloor space 7 formed by a floor slab 5 and a free access floor 6 is communicated. It has an outlet 8. In addition, an outlet 9 is arranged at a required position on the free access floor 6. Further, in the underfloor space 7, a blower unit 15 provided with an electric motor 13 and an impeller 14 directly connected to the inside of an outer casing 12 having a suction port 10 on a side surface and a discharge port 11 on a side surface opposite to the suction port 15 serves as a rotation shaft. It is connected to 16. The shaft 16
The rotary sliding part 17 provided on the upper part is fitted into the through hole 18 formed in the free access floor 6, and is installed on the back surface of the free access floor 6. Further, on the side of the room 19 of the rotary sliding portion 17, there is provided a concave portion 20 in which the direction of the blower unit 15 can be changed by a coin-shaped object or the like.

In the above structure, when the blower 2 in the air conditioner 3 is operated, the air in the room 19 is introduced into the air conditioner 3 through the intake port 4. The conditioned air conditioned by the heat exchanger 1 is blown from the underfloor outlet 8 to the underfloor space 7, and is ejected from the outlet 9 into the room 19. Further, by moving the impeller 14 by the electric motor 13 in the blower unit 15, a part of the conditioned air in the underfloor space 7 is sucked in through the intake port 10, blown out through the discharge port 11, and further forwarded to a further distance. It is jetted into the room 19 from 9 '. The direction of the blower unit 15 is set by inserting a coin-shaped member into the concave portion 20 of the rotary sliding portion 17 and rotating the blower unit 15 so that the conditioned air is spread all over the underfloor space 7.

As described above, according to the underfloor air conditioning system of the first embodiment of the present invention, as shown in FIG.
By rotating in any direction, the conditioned air can be sent to the air reservoir portion A in the underfloor space 7 where the air flow does not flow.

Next, a second embodiment of the present invention will be described with reference to FIGS. As shown in the figure, a duct 21 having elasticity and flexibility is connected to the intake port 10 and the discharge port 11 of the blower unit 15.

With the above structure, by moving the electric motor 13 in the blower unit 15, the conditioned air in the underfloor space 7 is moved and conveyed through the duct 21.

As described above, according to the underfloor air conditioning system of the second embodiment of the present invention, as shown in FIG. 5, the conditioned air blown from the air conditioner 3 is directly conveyed from the vicinity of the air conditioner 3 to a necessary place. You can

[0017]

As is apparent from the above embodiments, according to the present invention, by adjusting the direction of the blower unit from the indoor side, the conditioned air is sent to the air pool portion of the underfloor space, so that the air is blown from the air outlet. It is possible to provide a simple underfloor air conditioning system capable of uniformly improving the air flow distribution and temperature distribution of the air conditioner.

Further, by connecting the stretchable and flexible duct to the blower unit, the conditioned air blown out from the air conditioner can be directly conveyed and moved to the portion of the air reservoir, and a more uniform air volume distribution from the air outlet, An underfloor air conditioning system that can realize temperature distribution can be provided.

[Brief description of drawings]

FIG. 1 is a sectional view of an underfloor air conditioning system according to a first embodiment of the present invention.

FIG. 2 is a fragmentary perspective view of a blower unit of the underfloor air conditioning system.

FIG. 3 is a plan view showing the airflow in the underfloor space during operation of the underfloor air conditioning system.

FIG. 4 is a sectional view of an underfloor air conditioning system according to the second embodiment.

FIG. 5 is a plan view showing the airflow in the underfloor space during operation of the underfloor air conditioning system.

FIG. 6 is a sectional view of a conventional underfloor air conditioning system.

FIG. 7 is a plan view showing an airflow during operation of the underfloor air conditioning system.

[Explanation of symbols]

 3 Air Conditioner 6 Free Access Floor 9 Outlet 9'Outlet 10 Inlet 11 Outlet 12 Outer Shell 13 Electric Motor 14 Impeller 15 Blower Unit 16 Shaft 17 Rotating Sliding Part 18 Through Hole 21 Duct

Claims (2)

[Claims] 1. An underfloor for supplying warm or cold conditioned air from an air conditioner into a double floor constituted by a free access floor, and supplying the conditioned air into the room from an outlet arranged on the free access floor. In the underfloor of an air-conditioning system, a blower unit having an electric motor and an impeller directly connected to the electric motor is connected to a shaft serving as a rotary shaft inside an outer casing having an intake port on a side surface and a discharge port on a side surface opposite to the intake port. An underfloor air conditioning system in which a rotary sliding part provided on the upper part is fitted into a through hole formed in a free access floor, and the blower unit is installed on the free access floor. 2. The underfloor air conditioning system according to claim 1, wherein a duct having elasticity and flexibility is connected to an intake port and a discharge port of the blower unit.