JP2536962Y2 - Floor-blowing air conditioner - Google Patents

Description

[Detailed description of the invention] << Industrial application field >> The present invention relates to a floor-blowing type air conditioner in which dust is prevented from rising.

<< Conventional Technology >> The air outlet of the air conditioner was arranged on the top of the room. However, the number of free access floors tends to increase with the change in indoor layout and the spread of office automation equipment, and floor-blowing type air-conditioning systems, in which the air supply chamber is provided under the floor and the air outlets can be freely changed, also tend to spread.

<< Problems to be Solved by the Invention >> By the way, in a floor-blowing type air-conditioning apparatus that blows out conditioned air from an outlet provided on a floor, air-conditioned air in which dust that has fallen on the floor surface or stays on the floor surface is blown out. It is feared that it will be blown up and diffused into the room with the ascending airflow.

As one method for preventing such scattering and diffusion of dust, it is conceivable to make the dust moist. It is considered that the diffusion of dust can be reasonably prevented if the air-conditioning air itself that blows up dust contains moisture to some extent.

Floor-floor type air conditioners have an air supply chamber formed under the floor, a plurality of air supply ducts for sending conditioned air to each air supply chamber, and generate warm and cool air upstream of these air supply ducts And an air conditioner unit including a heat exchanger. Then, when moisture is included in the conditioned air, it is conceivable to provide a humidifier on the air conditioner unit side and collectively humidify the conditioned air.

However, when the conditioned air is humidified on the air conditioner unit side, the specific gravity of the conditioned air increases, and a high air blowing capacity is required to blow such heavy conditioned air into the room through the air supply duct and the air supply chamber. This is particularly noticeable in a cooling operation in which the specific gravity of the air itself is heavy. In addition, when moisture is included in the conditioned air, there is a problem that dew condensation occurs in the air supply duct and the air supply chamber during the cooling operation. For this reason, the air supply duct and the air supply chamber may be deteriorated at an early stage. In this case, on the air conditioner unit side, it is necessary to control the temperature of the cool air (conditioned air) to be higher or to control the humidity of the cool air so as to suppress the cooling effect. In the latter case, the effect of preventing the diffusion of dust cannot be sufficiently obtained.

The present invention has been made in view of the above circumstances, and its purpose is to reduce the blowing load to the air supply chamber, reduce the drip-proof measures of the air supply duct, and prevent the dust from rising. It is intended to provide a floor-blowing type air conditioner.

<< Means for Solving the Problems >> In order to achieve the above object, the floor-blowing type air conditioner of the present invention is an air conditioner supplied from an air conditioner unit to an air supply chamber formed under the floor via an air supply duct. In a floor-blowing type air conditioner in which air is blown out from a blow-out port provided on a floor surface, a humidifier with a blower fan is provided at or near the blow-out port, and water vapor or the like is introduced into the conditioned air near the blow-out port. It is made by applying moisture to the air.

<< Operation >> The humidifier provided near or at the outlet adds moisture such as water vapor to the conditioned air by the blower fan, and the humidified conditioned air blows out from the outlet.

When the humid conditioned air blows out from the outlet and rises, the moisture in the conditioned air adheres to the dust and the like, thereby preventing the dust and the like from scattering and flying in the room due to the airflow.

Also, since the fan of the humidifier accelerates the air blown out of the air outlet, the air supply capacity does not decrease even if the air pressure of the air conditioner unit that supplies air to the air supply chamber is suppressed, and humidification is performed at the air outlet. Therefore, dew condensation in the air supply duct due to humidification does not occur.

<< Embodiment >> Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a floor-blowing type air conditioner according to the present invention, which is mainly composed of an air supply chamber 8 formed under the floor.
And an air supply duct 20 communicating with the air supply chamber 8 for sending conditioned air; and an air supply duct 20 provided upstream of the air supply duct 20.
Air conditioning unit 30 including heat exchangers that generate warm and cold air
It is mainly composed of FIG. 1 shows the vicinity of the floor outlet 1 closely related to the present invention in detail.

Floor outlet 1 is the floor panel 2 of the free access floor
And the floor slab 3.

In the floor outlet 1, a damper 5 is attached to a shaft 4 extending in the diameter direction in a cylindrical body 1a so as to be freely openable and closable with a hinge, and the damper 5 is constantly urged in an elevation angle direction by a spring.

A push rod 6 is vertically mounted above a shaft 4 which is a rotation shaft of the damper 5, and a horizontal pressing piece 7 is fixed to a bottom end of the push rod 6.

When the push rod 6 is pushed, the rod 6 descends downward to some extent, and the pressing piece 7 hits the surface of the damper 5,
Push the damper 5 in both directions.

When the push rod 6 is raised, the damper 5 is rotated in the elevation direction by the urging force of the spring, and the floor outlet 1 is set to the "open" state.

Such a floor outlet 1 is suitable for a place where the ventilation passage is frequently opened and closed.

The lower part of the rear surface of the floor panel 2 is an air supply chamber 8 communicating with the air supply duct 20, and the cylinder 1 a forming the floor outlet 1 is placed in the air supply chamber 8.

Further, a floor panel 9 that can be easily removed is provided adjacent to the floor outlet 1, and an ultrasonic humidifier 10 is installed below the panel 9.

The ultrasonic humidifier 10 is provided with a blower fan 11 between the ultrasonic vibrator and a passage leading to the outside. The ultrasonic humidifier 10 sucks the conditioned air in the chamber 8 and discharges the conditioned air from the tip of the blast pipe 12 together with the humidified water droplets. You.

The air supply pipe 12 has a bellows-like base at its base so that it can be easily removed from the humidifier 10 main body, and has a fitting structure that can be inserted into the humidifier 10. The tip is installed at the bottom of the floor outlet 1 and spreads flat in the diameter direction of the floor outlet 1.

The blower fan 11 sends the moisture of the humidifier 10 to the blower pipe 12 together with the conditioned air in the chamber 8, and the moist conditioned air is discharged from the floor outlet 1.

<< Effects >> As described in detail above, the floor-blowing type air conditioner of the present invention is provided with a humidifier with a blower fan at or near the outlet, so that the air blower of the air conditioner unit that supplies air to the air supply chamber is provided. Humidification can be performed without increasing the load.

Another advantage is that dew condensation in the air supply duct due to humidification does not occur and the air supply duct can be prevented from being deteriorated at an early stage.

In particular, at the time of heating, not only the air does not dry out, but also the conditioned air containing moisture is blown out at the outlet, so that when the conditioned air rises at the outlet, water droplets adhere to the dust and suppress the scattering of the dust. There is.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a floor outlet portion of a floor-type air conditioner according to the present invention. 1 ... floor outlet 2 ... floor panel 3 ... floor slab 4 ... shaft 5 ... damper 6 ... push rod 7 ... pressing piece 8 ... air supply chamber 9 ... floor panel 10… Ultrasonic humidifier 11 …… Blower fan, 12 …… Air supply pipe 20 …… Air supply duct, 30 …… Air conditioner unit

Claims (1)

(57) [Scope of request for utility model registration] 1. A floor-blowing type air conditioner in which conditioned air supplied from an air conditioner unit to an air supply chamber formed under the floor via an air supply duct is blown out from an outlet provided on a floor surface. A floor-blowing type air-conditioning apparatus, comprising a humidifier with a blower fan provided at or near the outlet, and applying moisture such as water vapor to the conditioned air near the outlet.