JPH0258539B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to an air purifier for purifying indoor air, for example in an unspecified room such as a conference room, reception room, or hotel guest room. It is used as an air purifier for rooms that people come in and out of.

(Prior Art and its Problems) Conventionally, various structures of indoor air cleaners have been proposed. For example, there is an air cleaner in which a ventilation passage is formed in a casing, and a fan driven by a motor and an air filter are disposed within the ventilation passage. In such an air purifier, the motor is turned on or off by a switch, so that the motor is continuously in either an operating state or a stopped state, and the switch must be operated again to change the state. Therefore, if such an air purifier is installed in a conference room, for example, people who have gathered for a meeting will have to manually operate the switch on the air purifier to select whether to run or stop it. This was rather rare, and in many cases the previous state continued as it was. For this reason, even though air purifiers were installed, they were sometimes not operated at all, and sometimes they were left running even when they were not needed.

(Means for Solving the Problems) In view of the above-mentioned problems, the present invention prevents the occurrence of a situation in which the switch does not operate at all or is left in operation without operating the switch, and also enables The purpose of the present invention is to provide an air purifier that can be forcibly turned on or off by using a switch means 26.
This air purifier has a forced operation mode in which it is forcibly turned on for a certain period of time in response to input from the steady operation mode, and a forced stop mode in which it is forcibly turned off for a certain period of time and stops operation. .

(Example) Examples of the present invention will be described below based on the drawings.

In FIGS. 1 to 4, a casing 1 is composed of a casing body 2 and covers 3A and 3B removably attached to both left and right ends of the casing body 2. The casing body 2 is composed of an upper wall 4, a bottom wall 5, front and rear side walls 6, 7, and left and right end walls 8, 9, and the interior is divided into an upper chamber 11 and a lower chamber 12 by a horizontal partition 10. The lower chamber 12 is divided by a vertical partition wall 13 into two left and right compartments 12a and 12b. The covers 3A and 3B are each formed in the shape of a box with one side open, and the respective opening surfaces are connected to the left and right end walls 8 and 9 of the casing body 2.
It is placed so as to cover the outside surface. The inside of the left cover 3A and the left compartment 12a of the casing body 2 are communicated through a communication port 14 opened in the end wall 8, and an air intake port 15 consisting of a large number of slits is provided on the outer surface of the left cover 3A. In addition, the bottom wall 5 forming the left side compartment 12a is provided with an air outlet 16 consisting of a large number of slits. The chamber 12a and the air outlet 16 form a first ventilation path.
The inside of the right cover 3B and the right compartment 12b are communicated with each other through a communication port 17 opened in the end wall 9, and the bottom wall 5 forming the right compartment 12b has a large number of holes. Inlet port 18 consisting of a slit
, and an air outlet 19 consisting of a large number of slits is also provided on the outer surface of the cover 3B, so that the air inlet 18, compartment 12b,
The communication port 17, the inside of the cover 3B, and the ventilation port 19 form a second ventilation path that is separate from the first ventilation path.

A first fan 2 that is rotationally driven by a motor 20 and sucks air from the intake port 15 is provided in the first air passage.
1 is attached to the inner end of the communication port 14, and an air filter 22 is detachably attached to the outer end of the communication port 14. In the second ventilation path, a second fan 24 that is rotationally driven by a motor 23 and sucks air from the intake port 18 is installed inside the communication port 17, and an air freshener 25 is installed inside the cover 3B.
is placed in a suitable container. The aromatic agent 25 is either solid or liquid, and the container can be replaced when it is consumed.

Regarding the operation of the first fan 21, there are a steady operation mode and a forced operation mode.When the power is first turned on and during normal operation, the first fan 21 is operated in the steady operation mode, but when the forced operation mode is selected, it takes priority over the steady operation mode. The device enters forced operation mode, and automatically returns to normal operation mode after a certain period of time.

Referring to FIG. 5, the steady operation mode is a mode in which intermittent operation is performed by alternately repeating on and off, and in this embodiment, on and off are repeated every 30 minutes. The forced operation mode is a mode in which the pushbutton switch 26 is pressed to forcibly operate (forced operation mode) or to forcibly stop operation (forced stop mode), and in this embodiment, After pressing the push button switch 26, the forced operation mode is activated for two hours, after which the operation mode returns to the above-mentioned normal operation mode. Whether forced operation mode or forced stop mode is selected depends on
This depends on the operating state when the push button switch 26 is pressed; if the push button switch 26 is pressed during operation, the mode is changed to forced stop mode, and when the push button switch 26 is pressed while stopped, the mode is changed to forced operation mode. Therefore, when the push button switch 26 is pressed twice in succession, the forced operation mode is entered and the same operating and stopped state as before the push button is pressed continues for two hours. Note that the display lamp 27 lights up while the first fan 21 is operating.

As shown in FIG. 5, the second fan 24 is operated for a fixed short period of time at fixed time intervals, and in this embodiment, it is operated for only 3 minutes or 6 minutes every hour.

FIG. 6 shows an example of a block diagram of the control device 31. Briefly explaining the operation of the figure, the counter 32 receives a one-second period pulse from the digital clock 29 and outputs a one-hour period signal and a three-minute period signal to lines 33 and 34, respectively. Counter 35 receives a signal with a period of 3 minutes from line 34, divides the signal, turns on or off relay 36 every 30 minutes, and outputs a signal from flip-flop 37, which is inverted when pushbutton switch 26 is pressed. The frequency division ratio is changed according to the signal of 2 to measure time for 2 hours, and the on/off state of the output is reversed and this state is maintained for the 2 hours. the other counter 3
8 receives signals from lines 33 and 34, and 1
The relay 39 is turned on only for 3 minutes or 6 minutes. The changeover switch 30 is for switching between 3 minutes and 6 minutes. The push button switch 26 for forced operation, the display lamps 27 and 28, and the display section of the clock 29 are provided on the front side of the casing body 2 as shown in FIG.
is housed in the upper chamber 11.

When the air cleaner of the above-described embodiment is installed on a desk in a conference room, etc., it is normally operated intermittently in the steady operation mode. When people who have gathered for a meeting set the forced operation mode using the push button switch 26, the system will be forced to operate continuously for the next two hours.
The indoor air will be purified continuously. Since it enters normal operation mode after 2 hours without any operation, unnecessary operation is not performed when the meeting ends and the room is empty or the air is clean, making it efficient and economical. It is true. Conversely, for example, if you are concerned about the sound of an air purifier while it is running, and you set it to forced stop mode using the push button switch 26, it will be forced to stop for two hours, but after two hours it will automatically switch to normal operation mode. Therefore, it is possible to prevent the situation where people gathered for the next meeting are unaware of the existence of this air purifier and the air purifier is not operated at all even though the indoor air is polluted.

In other words, the forced operation mode by the push button switch 26 is limited to a predetermined period of time, for example, two hours, and intermittent operation is performed in the steady operation mode, so it is possible to prevent forgetting to turn off or turn on the switch.

In addition, since the second fan 24 is operated every hour, a moderate fragrance wafts into the room, and a strong fragrance is generated when the second fan 24 is in operation, which allows you to tell when an hour has passed. . Moreover, since it is only operated for 3 or 6 minutes per hour, the fragrance will not be so strong that it will hit your nose.

In the above-mentioned embodiment, the on/off time of the first fan 21 in the steady operation mode, the time in the forced operation mode, etc. depend on the condition of the place where this air purifier is installed, the time that the place is used at one time, etc. It can be changed as appropriate. 2nd fan 2
The time at which the vehicle is driven can also be changed as appropriate.For example, by having the vehicle drive at noon, it is possible to silently notify people around the vehicle that it is noon. Note that this second fan 24 and its related components may be omitted, and the configuration may be such that only air purification is performed. Furthermore, various structures can be adopted for the air cleaner itself.

(Effects of the Invention) According to the present invention, it normally operates intermittently to properly purify the air, and if necessary, it operates continuously to promote purification, or if necessary, it can be stopped. be able to. Moreover, after a certain period of time, the state returns to intermittent operation, so
It is possible to prevent the occurrence of a situation in which the vehicle is not operated at all or is left unattended. Therefore, the air cleaner of the present invention can be used in conference rooms, reception rooms,
Alternatively, it can be installed in a room used by unspecified people, such as a hotel room, and used efficiently and economically.

[Brief explanation of drawings]

FIG. 1 is a front view of the device according to the present invention, FIG. 2 is a bottom view of the same, FIG. 3 is a view indicated by arrow A in FIG.
The figure is a diagram indicated by arrow B in Figure 1, Figure 5 is a timing diagram explaining the operation of the first fan and second fan, and Figure 6 is a timing diagram showing the operation of the first fan and second fan.
The figure is a block diagram showing an example of a control device. 1...Casing, 14...Communication port, 15...
Inlet port, 16...Blower port, 20...Motor, 21
...First fan, 22...Air filter, 26
...Push button switch, (switch means), 31...Control device.

Claims (1)

[Claims] 1 Steady operation mode that performs intermittent operation by repeating ON and OFF alternately, forced operation mode that forcibly turns on for a certain period of time in priority to the steady operation mode by input from a switch means, and forced operation mode that operates for a certain period of time The air purifier has a forced stop mode and stops operation as it turns off.