JP3533075B2 - Control device for air purifier with ion generation function - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaner with an ion generating function, and more particularly to a control device therefor.

[0002]

2. Description of the Related Art Recently, many air purifiers having an ion generating function for releasing air ions into the air at the same time as blowing air are seen. Generally, ions are generated by ionizing air by high voltage discharge by an ionizer, and the generated ions are released into the air. In the conventional technique, in order to improve safety, the discharge state of the ionizer is monitored by some means and the discharge of the ionizer is stopped when abnormal discharge is detected.

FIG. 5 is a block diagram showing the basic construction of a control device for an air purifier with an ion generating function. In the figure, 1 is a blower fan, 2 is a blower fan drive unit, 3 ionizer, 4
Is an ionizer drive unit, 5 is a discharge voltage detection unit, and 6 is an abnormal stop means. Reference numeral 7 denotes a microcomputer (hereinafter referred to as a microcomputer), which includes a CPU 8, a memory 9 and an input circuit 1.
1 has an output circuit 10 and an output circuit 10. The program stored in the memory 9 controls the air purifier with an ion generating function.

FIG. 4 is a flow chart of an ionizer operation process in a conventional air purifier with an ion generating function. First, when the operation process of the ionizer is started in step S1, the process proceeds to step S4. Step S4
Then, output circuit 1 outputs the ionizer drive signal from CPU 8.
It outputs via 0, operates the ionizer drive part 4, and starts an ionizer discharge.

Next, in step S6, the discharge voltage of the ionizer operating in step S4 is detected by the discharge voltage detector 5
Detect with. Here, the discharge voltage detector 5 outputs a detection signal of about 0 V when the discharge voltage is normal, and outputs a detection signal of about 5 V when the discharge voltage is abnormal.

Next, in step S7, the detection signal is read into the CPU 8 through the input circuit 11 and then the CPU 8
When the voltage is about 0 V, the ionizer discharge is regarded as normal and the ionizer discharge is continued as it is. When the detection signal is about 5V, the ionizer discharge is regarded as abnormal and CP
A signal is output from U8 to the abnormal stop means 6 through the output circuit 10, and the abnormal stop means 6 stops the operation of the ionizer drive unit 4 and stops the discharge of the ionizer 3.

[0007]

However, in such a conventional air purifier with an ion generating function, the abnormal discharge of the ionizer is detected even when the yarn scraps are caught in the discharge part of the ionizer and the moisture is accumulated. However, there is a problem in that the ionizer discharge is stopped and it becomes impossible to efficiently generate ions.

[0008] As the prior art based on the publication, Japanese Patent Laid-Open No.
0-34754, JP-A-56-87439, JP-A-58-67362 and JP-A-54-
Although there are 105376 publications and the like, all of them involve complicated removal steps and require labor.

The present invention has been made in order to solve the above-mentioned problems, and small dust such as thread waste in the ionizer discharge part or retention of moisture is removed from the ionizer discharge part before the ionizer discharge is started. An object of the present invention is to provide an air purifier with an ion generating function that can efficiently and easily generate ions by discharging an ionizer.

[0010]

In a control device for an air purifier with an ion generating function according to a first aspect of the present invention, a blower fan drive section for controlling a blower fan and an ionizer drive section for controlling an ionizer ionizer are provided. , A discharge voltage detection unit that detects the discharge voltage of the ionizer, an ionizer abnormal stop means that stops the ionizer drive unit when the detection signal output from this discharge voltage detection unit is abnormal, and the air volume of the blower fan when operating the ionizer. Is operated for a predetermined time by increasing the air flow rate during normal operation, and then the ionizer is operated.

In the control device for an air purifier with an ion generating function according to the second aspect of the invention, the control device immediately before increasing the amount of increase in the air flow rate of the blower fan that is operated by increasing the air flow rate during normal operation. It is changed according to the air volume.

In the control device for an air purifier with an ion generating function according to the third aspect of the present invention, the control device increases the air volume of the blower fan over the air volume during normal operation to increase the predetermined time for operation. It is changed according to the immediately preceding air volume.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a flow chart showing the operation of the control device according to the present invention, showing the ionizer operation process after the start of the operation of the air purifier with an ion generating function.

The first embodiment differs from the conventional technique in that when the ionizer is operated, the air volume of the blower fan is increased a predetermined time before the ionizer operates, and then the ionizer is operated. is there.

The basic structure of the air cleaner with an ion generating function according to the first embodiment is similar to that of the conventional example shown in FIG. That is, as shown in FIG.
A control device having a blower fan drive part 2, an ionizer 3, an ionizer drive part 4, a discharge voltage detection part 5 and an abnormal stop means 6 is provided, and this control device comprises a CPU 8, a memory 9, an input circuit 11 and an output circuit 10. It has a microcomputer 7 having. The microcomputer 7 operates the components of the control device according to a program stored in the memory 9 to configure a control means for controlling the air purifier with an ion generating function.

First, the operation process of the ionizer will be described with reference to FIG. When the operation process of the ionizer is started in step S1, the air volume of the air blower fan is increased in step S2 by the air blower drive unit 2 via the output circuit 10 than the air volume during normal operation, and the ionizer discharge unit is caught. It is blown away by the wind force that has increased the amount of lint and moisture retention.

Next, in step S3, the measurement of the time (t1) after increasing the air volume of the blower fan is started, and t1 is compared with the predetermined time (T1) stored in the memory 9 of the microcomputer 1. If t1> T1 here, the process proceeds to step S4. In step S4, the ionizer drive signal from the CPU 8 is output via the output circuit 10 to operate the ionizer drive unit 4 to start the ionizer discharge.

Next, in step S5, the air volume of the air blowing fan increased in step S2 is returned to the air volume immediately before the start of the ionizer operation process by the air blowing fan drive unit 2 via the output circuit 10. That is, the air volume is restored to that during normal operation.

Next, in step S6, the discharge voltage detector 5 detects the discharge voltage of the ionizer in step S4.
Detect with. Here, the discharge voltage detector 5 outputs a detection signal of about 0 V when the discharge voltage is normal, and outputs a detection signal of about 5 V when the discharge voltage is abnormal.

Next, in step S7, the detection signal is read into the CPU 8 via the input circuit 11 and then the CPU 8
When the voltage is about 0 V, the ionizer discharge is regarded as normal and the ionizer discharge is continued as it is.

When the detection signal is about 5 V, the ionizer discharge is regarded as abnormal, the CPU 8 outputs a signal to the abnormal stop means 6 through the output circuit 10, and the abnormal stop means 6 stops the operation of the ionizer drive section 4. Then, the discharge of the ionizer 3 is stopped.

Since the control device for the air purifier with an ion generating function shown in the first embodiment operates as described above, small dusts and moisture of the thread waste in the ionizer discharge part are removed before the ionizer discharge. can do. Therefore, it becomes possible to efficiently generate ions.
That is, if there is conductive dust or the like in the ionizer discharge part that cannot be removed even if the wind force of the blower fan is increased, the discharge voltage detection part detects an abnormal ionizer discharge and stops the ionizer discharge in order to improve safety. Small dust such as yarn waste that can be removed by the wind force of the blower fan, moisture, etc. can be removed from the ionizer discharge unit by raising the wind force before performing the ionizer discharge, and then the ionizer discharge can be performed.

Embodiment 2. In the first embodiment, the air volume of the blower fan is increased for a predetermined period of time in step S2, and it is assumed that the dust is blown off by the wind force that has increased the amount of lint and the like in the ionizer discharge portion and the retention of moisture, etc. It may be appropriately changed according to the blower fan air volume immediately before the increase amount is increased.

FIG. 2 is a flowchart showing the operation of the control device according to the second embodiment.

When the operation process of the ionizer is started in step S1, whether or not the current blower fan air volume (q1) is larger than the reference air volume (Q1) set in the memory 9 of the microcomputer 7 in step S12. The CPU 8 determines. At this time, if q1> Q1, the process proceeds to step S13, in which the blower fan air volume is increased to be smaller than usual, and the process proceeds to the next step. On the contrary,
If q1 ≦ Q1, the process proceeds to step S14, and in step S14, the blower fan air volume is increased more than usual,
Go to the next step. Also, the same steps as those in FIG.

For example, in step S1 of FIG. 2, when the blower fan air volume is already sufficiently large, the blower fan increase amount is reduced, and conversely, when the blower fan air amount is small in step S1, the blower fan increase amount is made larger than usual. As a result, the air volume of the blower fan is not increased more than necessary, and it is possible to provide the air volume sufficient to remove the yarn waste, the retention of moisture, and the like.

Embodiment 3. In the first embodiment, the air volume of the blower fan is increased for a predetermined period of time in step S2, and it is assumed that the dust is blown off by the wind force that has increased the amount of lint and the like in the ionizer discharge portion and the retention of moisture, etc. It may be appropriately changed according to the blower fan air volume immediately before the increase amount is increased.

FIG. 3 is a flow chart showing the operation of the control device according to the third embodiment.

When the operation process of the ionizer is started in step S1, it is determined in step S22 whether the current blower fan air volume (q1) is larger than the reference air volume (Q1) set in the memory 9 of the microcomputer 7. The CPU 8 determines. At this time, if q1> Q1, the process proceeds to step S23. In step S23, the memory 9 of the microcomputer 7
Predetermined time (T1) stored in the specified time (α)
After the subtraction, proceed to the next step. On the other hand, q1 ≦ Q1
If so, the process proceeds to step S24. In step S24, the predetermined time (T1) stored in the memory 9 of the microcomputer 7 is added to the specific time (α), and then the process proceeds to the next step. Also, the same steps as those in FIG.

For example, when the blower fan air volume is already sufficiently large in step S1 in FIG. 3, the blower fan increase time is shortened, and conversely, when the blower fan air volume is small in step S1, the blower fan increase time is made longer than usual. As a result, the air volume of the blower fan is not increased more than necessary, and it is possible to obtain a sufficient time for removing the lint and the retention of moisture.

[0031]

According to the first aspect of the present invention, when the control device operates the ionizer, the control device normally operates the air volume of the blower fan.
By operating the ionizer for a predetermined time after increasing the air flow rate , small debris such as thread waste in the ionizer discharge part and accumulation of moisture are removed from the ionizer discharge part before starting the ionizer discharge. After that, by discharging the ionizer, it is possible to provide an air purifier with an ion generating function that can efficiently generate ions.

According to the second invention, the control device, through
The amount of increase in the air flow rate of the blower fan that is operated by increasing the air flow rate during normal operation is changed according to the air flow rate immediately before the increase, so that the air flow rate of the blower fan is not increased more than necessary. In addition, it is possible to generate a sufficient amount of air to remove the lint and the retention of moisture.

According to the third invention, the control device, send
Operate by increasing the air volume of the wind fan more than that during normal operation.
The predetermined rotation time is changed according to the air volume immediately before it is increased, and it is not necessary to increase the air volume increase time of the blower fan more than necessary, and it also removes the lint and moisture retention. You can get enough time to.

[Brief description of drawings]

FIG. 1 is a flow chart diagram showing control of a control device of an air purifier with an ion generating function according to a first embodiment of the present invention.

FIG. 2 is a flow chart diagram showing control of a control device for an air purifier with an ion generating function according to a second embodiment of the present invention.

FIG. 3 is a flow chart diagram showing control of a control device for an air purifier with an ion generating function according to a third embodiment of the present invention.

FIG. 4 is a flowchart showing the control of a conventional controller for an air purifier with an ion generating function.

FIG. 5 is a block diagram showing a basic configuration of a control device for an air purifier with an ion generating function.

[Explanation of symbols]

1 blower fan, 2 blower fan drive unit, 3 ionizer, 4 ionizer drive unit, 5 discharge voltage detection unit, 6
Ionizer abnormal stop means, 7 microcomputer.

─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-2-152561 (JP, A) JP-A-3-68412 (JP, A) JP-A-9-19647 (JP, A) Actual development Sho-54- 93894 (JP, U) Actual development Sho 61-159052 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B03C 3/00-3/88

Claims (3)

(57) [Claims] 1. A blower fan drive section for controlling a blower fan, an ionizer drive section for controlling an ionization ionizer, a discharge voltage detection section for detecting a discharge voltage of the ionizer, and an output from this discharge voltage detection section. When operating the ionizer abnormal stop means that stops the ionizer drive section when the detection signal is abnormal, and the ionizer is operated, the air volume of the blower fan is increased from the air volume during normal operation to operate for a predetermined time, and then the ionizer is operated. An apparatus for controlling an air purifier with an ion generating function, comprising: 2. The control device changes the amount of increase in the air flow rate of a blower fan that is operated by increasing the air flow rate during normal operation, according to the air flow rate immediately before the increase. Control device for air purifier with ion generating function
Place 3. The control device sets a predetermined time period in which the blower fan is operated with the air volume of the blower fan being increased from the air volume of the normal operation,
Control of the ion generating function equipped air purifier of claim 1, wherein the changing in accordance with the air amount immediately before increasing
Your device .