JP2761056B2 - Air cleaner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an air purifier.

2. Description of the Related Art Conventionally, an example of this type of air purifier will be described with reference to the accompanying drawings.

4 and 5 are an exploded perspective view of an air purifier and a perspective view of an indicator disclosed in Japanese Patent Application Laid-Open No. 63-224710, 16 is an indicator, 17 is an indicator filter, and is mounted on the indicator 16. I have. Reference numeral 18 denotes a filter block, reference numerals 19 and 20 denote air purifier main bodies, and the indicator 16 is mounted above the air purifier main body 20, and a user judges the dirt on the filter block 18 by observing the dirt on the indicator filter 17. , The exchange time is decided.

FIG. 6 shows an air purifier 21 disclosed in Japanese Patent Application Laid-Open No. 63-147514 as another conventional example.
As shown in the figure, the usage rate of the filter is calculated according to the operation time and the operation state, and the user is notified of the filter replacement time.

Problems to be Solved by the Invention However, among the conventional air purifiers as described above, the former leaves the judgment of the filter replacement time to the user's vision, and cannot make an accurate judgment. In the latter case, when replacing the filter, installing a new filter and operating the air cleaner again, there is a problem that accurate judgment cannot be made, for example, the initialization of the addition time may be forgotten. there were. Furthermore, even if the filter is not installed, the filter can be operated as an air purifier if the filter frame or cover is installed, so that the air purifier can be operated without the filter installed, deteriorating the performance of the air purifier. There was also.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems, and to provide an air purifier that can prevent operation in a state where a filter has not arrived and that can notify a filter replacement or maintenance time with high accuracy. Things.

Means for Solving the Problems In order to achieve the above object, as a first invention, a filter in which a thin plate-shaped storage battery is integrally provided in a part of a filter body constituting a dust collecting portion, and this filter is an air purifier body When properly installed in the battery, a pair of electrodes or more that contact the electrodes of the storage battery, a voltage detection circuit that detects the voltage of the storage battery with these electrodes, and connected to the voltage detection circuit to operate the air purifier And an operation circuit for sending an operation signal of the air purifier to the operation circuit. The operation circuit receives a signal from the operation circuit only when the voltage detection circuit detects a voltage equal to or higher than a certain value. An air purifier that controls the purifier to operate was used.

According to a second aspect of the present invention, there is provided a filter in which a thin plate-shaped storage battery is integrally provided, a pair of electrodes which contact the electrodes of the storage battery when the filter is properly mounted in the air purifier main body, and A voltage detection circuit for detecting the voltage of the storage battery, and connected to the voltage detection circuit,
An air purifier comprising: an arithmetic circuit for operating an air purifier; and a display circuit having a plurality of display stages controlled by signals of the arithmetic circuit, wherein the air purifier controls the display circuit according to a voltage value of the voltage detection circuit. And

Further, as a third invention, a filter integrally provided with a thin plate-shaped storage battery, and a pair of at least one electrode that comes into contact with an electrode of the storage battery when the filter is properly mounted in the air purifier main body; A voltage detection circuit for detecting the voltage of the storage battery by the electrodes, an arithmetic circuit connected to the voltage detection circuit and operating the air purifier, and a discharge current according to an operation state of the air purifier based on a signal from the arithmetic circuit. A discharge circuit for controlling, and a notification circuit for notifying a filter replacement time by a signal of the arithmetic circuit, wherein the arithmetic circuit has a voltage of the storage battery below a predetermined value according to a change in a discharge current of the discharge circuit. At this time, the air purifier is controlled so that the notification circuit informs the user when to replace the filter.

Operation As described above, the first invention integrally provides a filter with a thin plate-shaped storage battery, and detects a voltage of the storage battery by a pair of electrodes or more in contact with electrodes of the storage battery in the air purifier main body, and these electrodes. A voltage detection circuit is provided, and when the filter is properly mounted on the air purifier, the voltage detection circuit detects the voltage of the storage battery, and if this value is a certain value or more, the arithmetic circuit outputs a signal from the operation circuit. Then, the operation of the air purifier became possible. Therefore, the operation of the air cleaner can be performed only when the filter is attached to the air cleaner body in a proper state.

Further, the second invention outputs a signal corresponding to the voltage between the electrodes to the arithmetic circuit through a voltage detection circuit when the filter provided with the thin plate-shaped storage battery is properly mounted in the air cleaner body,
A display circuit having a plurality of display steps is controlled by the signal of the arithmetic circuit, and the use time of the filter can be displayed stepwise by the display circuit according to the voltage value between the electrodes of the storage battery.

Furthermore, the third invention outputs a signal corresponding to the voltage between the electrodes to the arithmetic circuit through a voltage detection circuit when a filter provided with a thin plate storage battery is properly mounted in the air purifier main body. Since this arithmetic circuit changes the discharge current of the discharge circuit so as to change the operation state of the air purifier, it is necessary to replace the filter when the voltage between the electrodes of the storage battery falls below a predetermined value according to the operation state. Can be reported.

Embodiment Hereinafter, an air purifier as one embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a filter, in which a thin plate-shaped storage battery 2 is integrally provided in a part of a filter body 1a constituting a dust collecting portion. A pair of positive electrode A (hereinafter, referred to as electrode A) and negative electrode B (hereinafter, referred to as electrode B) of the storage battery 2 are provided when the filter 1 is properly mounted on an air purifier body (not shown). It is arranged so as to come into contact with a pair of electrodes of the voltage detection circuit 3 shown in the block diagram of the control circuit of the air purifier main body in FIG. The voltage detection circuit 3 outputs a signal corresponding to the voltage between the electrodes A and B to the arithmetic circuit 4, and the arithmetic circuit 4 outputs a signal from the operation circuit 5 only when the voltage between the electrodes A and B is equal to or higher than a predetermined value. If not, the air purifier cannot be operated. Therefore, the air purifier does not operate unless the filter 1 is attached to the air purifier body in a regular state,
For example, the air purifier does not operate even if the filter frame is attached or the lid of the dust collecting unit is properly attached. Therefore, it is possible to prevent erroneous use as in the related art.

Next, the arithmetic circuit 4 changes the lighting number of the indicator lamp of the display circuit 6 according to the voltage between the electrodes A and B. That is, when the filter 1 is new, the voltage of the storage battery 2 is also high, and all the indicator lights of the display circuit 6 are turned on. However, when the usage time has elapsed, the voltage between the electrodes A and B decreases due to the discharge of the storage battery 2. Thus, the number of lighting of the indicator lamps of the display circuit 6 is reduced. For this reason, the user can clearly determine how much the filter 1 can be used based on the number of lights of the indicator lamps. Further, since the deodorizing performance of the filter 1 is reduced while functioning without operating the air purifier, it is similar to the voltage drop due to the discharge of the storage battery 2.

Therefore, the voltage drop due to the discharge of the storage battery 2 is indicated by the display circuit
The step-by-step display incorporates a change with the passage of time, so that the user can be notified of the timing of replacing the filter 1 with higher accuracy.

FIG. 3 shows a block diagram of a control circuit of an air purifier main body as another embodiment, and a first filter as a filter.
The filter 1 shown in the figure is used. 7, 8, 9 are resistors, and 10, 11, 12 are transistors. Transistors 10, 11, with electrodes 7, 8 and 9 connected in series between electrodes A and B, respectively.
12 constitutes a discharge circuit for discharging. Then, any one of the transistors 10, 11, and 12 is turned on by the arithmetic circuit 13 according to the operation state of the air purifier.
The discharge current of the storage battery 2 provided in the filter 1 is controlled by giving a signal indicating whether or not to perform the operation. That is, when the air purifier is operated with high capacity, the arithmetic circuit 13
Is controlled so that the voltage of the storage battery 2 is reflected to the voltage of the storage battery 2 with higher accuracy, and the voltage between the electrodes A and B detected by the voltage detection circuit 14 falls below a predetermined value. At this point, the notification circuit 15 is controlled to notify the user. Therefore, it is possible to notify the filter replacement time with higher accuracy without relying on the visual judgment by the user. In addition, since the storage battery 2 used in the filter 1 has information on the elapsed time of use remaining as the battery voltage as described above, there is no loss of information due to a power failure or the attachment / detachment of the filter 1, and even if an old filter is used, the use condition of the filter can be reduced. Can be clearly determined. In addition, the storage battery 2 that is renewed each time the filter 1 is replaced can be used as a backup power source for the control circuit of the air purifier body.

Effect of the Invention As described above, in the first invention, a filter having a thin plate-shaped storage battery is provided, and only when this filter is properly attached to the air purifier main body, the voltage detection circuit detects the voltage between the electrodes of the storage battery. In addition, since the operation of the air purifier is enabled by receiving a signal from the operation circuit by the arithmetic circuit, it is possible to prevent performance degradation and erroneous use due to a filter mounting error or the like.

Further, in the second invention, a display circuit is provided in the air purifier main body, and a plurality of display stages are displayed according to the output of the voltage detection circuit by the arithmetic circuit, so that the user only needs to look at the display stage. The life of the filter can be easily estimated, and the time to replace the filter can be accurately determined.

Further, in the third invention, a discharge circuit controlled by a signal of an arithmetic circuit and a notification circuit are provided in the air cleaner body, and the arithmetic circuit changes the discharge current of the discharge circuit so as to change the operation state of the air cleaner. When the voltage between the electrodes of the storage battery falls below a predetermined value in accordance with the operating state, a notification circuit can notify a filter replacement time. Therefore, the user can judge when to replace the filter with high accuracy in accordance with the operation state of the air purifier, and it is necessary to return the added value of the use time of the filter to the initial value every time a new filter is replaced. It is now possible to provide a convenient air purifier.

[Brief description of the drawings]

FIG. 1 is a front view of a filter used in an air purifier showing one embodiment of the present invention, FIG. 2 is a block diagram of a control circuit of the air purifier, and FIG. 3 is an air purifier body showing another embodiment. FIG. 4 is an exploded perspective view showing a conventional air purifier, FIG. 5 is an enlarged perspective view of an indicator, FIG. 6 is a perspective view showing another conventional example, and FIG. FIG. 7 is an explanatory diagram showing a filter usage rate and the number of times of use when the air purifier shown in FIG. 6 is used. DESCRIPTION OF SYMBOLS 1 ... Filter 2 ... Storage battery 3, 14 ... Voltage detection circuit 4, 13 ... Operation circuit 5 ... Operation circuit 6, 6 ... Display circuit 7, 8, 9 ... Resistance 10, 11, 12 ... … Transistor 15 …… Notification circuit A …… Plus electrode, B …… Negative electrode

Claims (3)

(57) [Claims] 1. A filter in which a thin plate-shaped storage battery is integrally provided in a part of a filter main body constituting a dust collecting portion, and when the filter is properly mounted in an air purifier main body, the filter contacts an electrode of the storage battery. A pair of electrodes that are in contact with each other, and a voltage detection circuit that detects the voltage of the storage battery with these electrodes,
An operation circuit connected to the voltage detection circuit for operating the air purifier, and an operation circuit for sending an operation signal of the air purifier to the operation circuit, wherein the voltage detection circuit detects a voltage equal to or higher than a predetermined value. The air purifier is controlled to operate the air purifier in response to a signal from the operation circuit only when the air purifier is present. 2. A filter integrally provided with a thin plate-shaped storage battery, and a pair of at least one electrode which comes into contact with an electrode of the storage battery when the filter is properly mounted in an air purifier main body.
A voltage detection circuit for detecting the voltage of the storage battery by these electrodes, an operation circuit connected to the voltage detection circuit for operating the air purifier, and a display having a plurality of display steps controlled by signals of the operation circuit And a circuit, wherein the display circuit is controlled in accordance with a voltage value of the voltage detection circuit. 3. A filter integrally provided with a thin plate-shaped storage battery, and a pair of at least one electrode which comes into contact with an electrode of the storage battery when the filter is properly mounted in the air cleaner body.
A voltage detection circuit for detecting the voltage of the storage battery by these electrodes; an arithmetic circuit connected to the voltage detection circuit for operating the air purifier; and a signal from the arithmetic circuit for discharging the air purifier in accordance with the operation state of the air purifier. A discharge circuit for controlling a current, and a notification circuit for notifying a filter replacement time by a signal of the arithmetic circuit, wherein the arithmetic circuit changes a voltage of the storage battery to a predetermined value according to a change in a discharge current of the discharge circuit. An air purifier characterized in that the alarm circuit controls so as to notify the time of replacement of the filter when the value falls below the predetermined value.