JPS58145836A - Ventilator - Google Patents

Abstract

PURPOSE:To make it possible to minimize the temperature difference between the upper part and the lower part of a room and to switch automatically an air circulating operation to a ventilating operation by the titled ventilator by a method wherein the room is ventilated sufficiently by opening a shutter and air is circulated through the room by closing the shutter. CONSTITUTION:An exhaust air passage 8 and a supply air passage 9 are formed in the frame 1 of a ventilator and the shutter 14 for intercepting simultaneously the air flowing through an exhaust air port 11 and a supply air port 12 communicating with the outside of the room are provided so that when the shutter 14 is opened, an exhaust air stream and a supply air stream are generated by a fan 4 incorporated in the ventilator. Further, the ventilator is made to serve as a circulating device capable of producing a circulating air stream in the room when the shutter 14 is closed and such air circulating operation of the ventilator is made to be switched automatically to the ventilating operation thereof by means of a detecting means such as a time constant circuit or an air pollution detecting circuit and an automatic shutter opening and closing mechanism linked to the former.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dual-purpose ventilation system that can be used for circulation operation and ventilation operation.

Hereinafter, to describe the double ventilation operation which will be explained in accordance with one embodiment of the present invention, as shown in Figs. ,
(See Figure 3), and the inside is provided with a motor 3 and a centrifugal multi-blade fan 4 rotated by the motor 3. 5 is an air supply side casing, and 6 is an exhaust side casing. Inside the fan 4 is a separator 7a,
7b is provided, and the rotation of the fan 4 causes exhaust air flow.

The supply air flow B is generated at the same time to prevent mixing. The exhaust passage 8 and the air supply passage 9Fi are connected to an exhaust port 11 and an air supply port 12 located on the indoor side of the mounting wall 100 and communicating with the outdoors. The exhaust port 11 and the air supply port 12 are provided on a back plate 13 that is engaged with the mounting wall side of the frame work. 14 is a shutter that simultaneously blocks ventilation in the detention room. Atsushi 4 is explained by separating the frame l and the back plate 131kf, and the shutter 14 moves up and down along the left and right sliding grooves 15, and when it is on the upper side, the exhaust port 11 is placed on the WiA side and the air supply port is 12 is blocked on the side of surface B, and when it is on the lower side, the exhaust port and the air supply port are opened at the same time. Reference numeral 16 denotes a control motor which functions to wind up the shutter 14 against a spring 18 via a drawstring 17.

Figure 5 shows the operation when the shutter 14 is closed.A circulation flow C is formed by the rotation of the fan 4, which circulates the warm air in the upper part of the room downwards to explain it in the case of heating. , it is effective as a circulator that warms the lower part of the room with low mf. The problem with this circulation operation is that the only ventilation effect is the natural ventilation of the room.
One example of this is the progress of air pollution. As described above, the configuration of the present invention has a feature that the ventilation operation can be easily switched to by operating the shutter 14.

FIG. 6 shows air pollution over time after operation. During the circulation operation with the shutter 14 closed, the air becomes more polluted and approaches the indoor permissible standard.
The figure shows a cycle in which the shutter 14 opens and the air is purified in a short time when switching to ventilation operation, and there is no problem even when switching to circulation operation, and the shutter 14 closes.

FIG. 7 shows an example of a configuration for producing the above effect against air pollution. That is, a diagram of an automatic shutter opening/closing mechanism that operates a relay and drives the control motor 16 by a time constant circuit using a resistor or a capacitor, or an air contamination detection circuit using a variable resistance metal of a semiconductor sintered element is shown. As described above, according to the present invention, when sufficient ventilation is desired, a ventilation system with the shutter open is used, and when the main purpose is to save energy by eliminating the vertical m degree difference and reducing the ventilation volume, it is used as a circulation system with the shutter closed. Moreover, it is highly effective as a device that automatically opens the shutter to perform ventilation operation even during circulation operation.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention, Fig. 2 is an operation diagram of the ventilation system, Fig. 3 is a front explanatory view of the fan section, Fig. 4 is a front explanatory view of the back plate section, FIG. 5 is an operational diagram of the circulation device, FIG. 6 is an explanatory diagram of air pollution, and FIG. 7 is a diagram showing the control operation. l...ThL 2...Front cover, 3...Motor,
4...Fan, 5...Air supply side casing, 6...
Exhaust side casing, 7...Separator, 8...Exhaust path, 9...Air supply path, lO...Mounting wall, 11...Exhaust port, 12...Air supply port, 13...・Back Lxa...shutter, fti movement for 1 s*. 16...Control motor, 17...Pull string, 1g...
·Spring. Part I National Revolution 2 Diagram

Claims (1)

[Claims] t An exhaust path and an air supply path are formed in the frame, and a shutter that simultaneously blocks ventilation is provided at the exhaust port and air supply port that communicate with the outside of the layer, and when the shutter is opened, a built-in 7-eye motor is provided. In a ventilation system that generates exhaust air flow and supply air flow, when the shutter tWJ is closed, a dual-purpose ventilation system is used that acts as a circulation ant that generates a circulation flow of indoor air, and during circulation operation with the shutter closed. 1 hour #! A ventilation system characterized in that it is configured to automatically switch to ventilation operation by interlocking an automatic shutter closing mechanism with an automatic shutter closing mechanism and an automatic shutter closing mechanism.