JPS6229849A - Ventilation apparatus - Google Patents

Abstract

PURPOSE:To make possible the ventilation control of a plurality of rooms by means of one ventilation unit, by providing a easy-to-handle switch for controlling open and close operation of a damper, controlling a motor of the ventilation unit in response to the number of close operations of the control switch by means of a controller which changes over a notch for controlling air flow rate. CONSTITUTION:A ventilation unit 1 incorporates a motor 2, out of which a notch, strong - weak, for changing over air flow rate protrudes. Suction ports of each room 4a-4c are provided with dampers 5a-5c. In response to the number of operations of easy-to-handle switches 6a-6c which turn on/off the dampers 5a-5c, the notch of the motor 2 is changed over through a controller 3. Further, the dampers 5a-5c provided at the suction ports 4a-4c of each room are connected to a normally-closed contact point 9a of a relay 9 (not shown on fig.), therefore, the open and close operation thereof is controlled by means of the switches 6a-6c. A smoke-sensing switch 7 is provided in some room, signals from said switch are sent to the controller 3.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a ventilation system for centrally ventilating a plurality of rooms with one ventilation device.

2. Prior Art The most basic ventilation means conventionally used is to install a ventilation fan 101, 102, 103 in each room as shown in FIG. , 103 and the duct 104 . Each ventilation fan 1 is discharged to the outside through a duct 105.
01, 102, 103 are switches 106, 107, 10
8 to control operation and stop individually.

Furthermore, as shown in FIG. 4, there is also a system configured to ventilate multiple rooms with one ventilation device. In this case, one ventilation device 201 is installed, and each room has 20 dampers 203
, 204 are provided. And dampers 202, 203, 2
04 switch 205゜206.207 is activated,
Depending on the number of activated switches, that is, the number of rooms that require ventilation, the air volume switching notch of the ventilation equipment 201 becomes stronger.

It was configured so that it could be switched to 2nd year junior high school students. (For example, Japanese Patent Publication No. 62-28496) Problems to be Solved by the Invention As mentioned above, the conventional method of installing one ventilation fan in each room requires a lot of work and is expensive. There was a problem.

However, if you install one ventilation device and change the air volume switching notch depending on the number of damper switches activated, it would be difficult to gather a large number of people in one room, generate large amounts of cigarette smoke, etc. Even in cases where ventilation is possible, the problem is that ventilation can only be performed with the normal ventilation air volume, and even though ventilation equipment with a large air volume is installed, it cannot be used effectively. .

The present invention solves the above-mentioned conventional problems, and aims to provide a ventilation system that saves construction work and is inexpensive.

Means for Solving the Problems In order to achieve the above object, the ventilation system of the present invention includes one ventilation device, a damper is provided at the suction port of each room connected to this ventilation device, and the damper A hand switch is provided to control the opening and closing of the ventilator, and the motor of the ventilation system is controlled by a controller that switches the air volume adjustment notch according to the number of hand switches that are closed.

Function: With this configuration, the air volume adjustment notch of the motor can be switched via the controller depending on the number of activations of the hand switch, and appropriate ventilation can be performed.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, reference numeral 1 is a ventilation device with built-in blades and a motor 2, and the motor 2 has a notch for switching the air volume between high and medium. Suction ports 4a and 4b of each chamber
, 4c has a damper 6a.

sb and sc are provided, and this damper 5a, esb
.

The notch of the motor 2 is switched via the controller 3 according to the number of actuated hand switches 6a, eb, 8c that turn on and off the 5C. A smoke detection switch 7 is provided in a certain room, and this smoke detection switch T has contacts 8. The contact 8 of the smoke detection switch T is a relay 9
The normally closed contact 9a of the relay 9 is connected to the motor 2 via the controller 3, and the damper 5a, via the switches 6a, 6b, and esc.
5b.

5C, and the other normally closed contact 9b is directly connected to the strong notch of the motor 2 without going through the controller 3, and is connected to the damper 58 in one room where the smoke detection switch 7 is installed without going through the switch 6a. connected directly to.

In the above configuration, when the smoke detection switch 7 is not activated, that is, when the contact 8 is open, the motor 2 is energized via the controller 3 through the normally closed contact 9a of the relay 9, and the switches 6a and eb are energized.

The notches are operated according to the number of 6C closed. In addition, dampers 6a provided at the suction ports 4a, 4b, and 4c of each room,
sb and sc are connected to the normally closed contact 9a of the relay 9 in the same way as above, so when the switch sensing switch 7 is activated and the contact 8 is closed, the relay 9 is activated and the normally closed contact 9 is
b is closed, the motor 2 is directly energized to the strong notch and operated at high power, and at the same time, the circuit that supplies power to the dampers 6a, sb, and 5c of each chamber connected to the normally closed contact 9a is cut off. , the damper 5& is supplied with power from a circuit that directly supplies power to the damper 5a through the normally closed contact 9b without going through the switch 6a. Therefore, the damper 6a is in an open state, and the other dampers 5b and 6c are in a closed state.

Effects of the Invention As is clear from the description of the above embodiments, according to the present invention, 1
Since multiple rooms can be ventilated with a single ventilation device, construction work can be saved, and the cost is also lower than purchasing and installing multiple ventilation devices.

[Brief explanation of drawings]

Fig. 1 is an installation sectional view of a ventilation system according to an embodiment of the present invention, Fig. 2 is a circuit diagram of the same ventilation system, Fig. 3 is an installation sectional view of a conventional ventilation system, and Fig. 4 is an installation sectional view of another conventional ventilation system. It is an installation sectional view of a ventilation device. 1...Ventilation equipment, 2...Motor, 3.
...Controller, 4a, 4b, 4cm ---
Suction port, s a, sb. 5c...damper, 6a, sb, 6c...river
Hand switch, 7 mark ・Smoke detection switch, 8 mark ・
Contact, 9...Relay. Name of agent: Patent attorney Toshio Nakao
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1 girl's friend

Claims (2)

[Claims] (1) In addition to providing one ventilation device that centrally ventilates multiple rooms, each room is provided with a damper at its suction port and a main switch that controls the opening and closing of this damper.
A ventilation device configured to control a motor of the ventilation device by a controller that switches an air volume adjustment notch according to the number of closed hand switches. (2) A relay switch of a smoke detector is inserted into the energizing circuit for the controller of the motor and the hand switch of the damper, and the normally open contact of the relay switch is connected to the strong notch of the motor without going through the controller. The ventilation device according to claim 1, wherein the ventilation device is connected to a specific damper without using a hand switch for the specific damper.