JPH09243150A - Hot air type heater with air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a desired amount of air to be secured by a method wherein a microcomputer is provided for operating a blower in a high speed mode with a more amount of air than that in a normal mode when an air cleaning operation switch is turned ON and a combustion operating switch is also turned ON. SOLUTION: A microcomputer 8 performs a room temperature control to judge whether a (combustion + air cleaning) mode is set, in other words, whether or not a flag for indicating a (combustion + air cleaning) mode is present after a combustion operating switch 10 and an air cleaning operation switch 9 are turned ON together and then if there is a flag indicating a (combusiton + air cleaning) mode, an amount of combustion based on a difference between a set temperature and a room temperature is determined. The number of rotation of a fan motor based on the determined amount of combustion is determined and a high speed number of rotation having a predetermined number of rotation added to the determined number of rotation is also determined and then a control signal of the fan motor based on the high speed number of rotation is outputted from a blower control section 82.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air with an air cleaner such as a gas fan heater or an oil fan heater equipped with an air cleaner that collects dust (ie, collects dust) by generating a high voltage. It is about the heater.

[0002]

2. Description of the Related Art Conventionally, as an electrostatic precipitator (or an air purifier) that generates a high voltage and charges dust and dirt to a dust collecting element, for example, JP-A-3-288559 and JP-A-3-193149. Japanese Patent Publication No. 6-76859 (Japanese Patent Publication No. 6-76859) and an air conditioner (warm air heater) to which an air purifying function such as an electric dust collector is added. Japanese Patent Publication No. 6-92839 (these are referred to as the latter)
Are disclosed in.

In the former publication, the electric dust collector (that is, the air cleaning function) is independently operated, and has no relation to simultaneous use with the heating operation. Further, in the latter publication, independent operation of air cleaning and heating and simultaneous operation of both functions are possible.

[0004]

However, even if the electric dust collector disclosed in the above-mentioned former publication is simply adopted as an additional function of the warm air heater, matching with the warm air heater is not taken into consideration. However, it cannot be operated as a product as it is. Further, in the air conditioner disclosed in the latter publication, when both functions of air cleaning and heating are selected for use at the same time, the air volume by a single blower is determined by the deviation between the room temperature in the room to be heated and the desired set temperature. Since the air volume is the same as when operating independently, the air volume required to operate the internal air cleaning function of the air volume required for heating (that is, to obtain the desired combustion volume) is utilized, and the air volume is slightly higher than desired. There was a case where there was a loss and the air volume became insufficient. For this reason, compared to the capability of each function during independent operation, the capability of each function when both functions are selected is reduced, and the temperature change characteristics during heating deteriorate.

The insufficient air flow referred to here is smaller in the deviation between the set temperature and the room temperature than when the deviation between the set temperature and the room temperature is large and the required combustion amount is large (in detail, the air flow and the fuel amount are large). It becomes more prominent when the required air volume decreases. Moreover, when the above-mentioned required air volume falls below a certain air volume of an air purifier that is normally operated at a certain air volume irrespective of room temperature, not only as a decrease in heating capacity but also as a decrease in air cleaning function capacity. It appears.

Therefore, in the present invention, the air flow rate in the desired operation mode is automatically changed by automatically changing the air flow rate of the blower (specifically, the operation mode of the blower) in accordance with the selection status of the operation mode by the user operating various operation switches. It is an object of the present invention to provide a hot air heater with an air purifying function that solves the shortage, the insufficient capacity, and the deterioration of the temperature change characteristic, and improves the added value as a heater.

[0007]

The hot air heater according to claim 1 of the present invention is a blower and an ON / O switch for an air cleaning operation switch.
Outputs an air cleaning operation start signal / air cleaning operation stop signal based on FF operation, and turns on / off the combustion operation switch
It is provided with a microcomputer that outputs a combustion start signal and a combustion stop signal based on an operation, and an air cleaning means and a combustion means that are controlled based on the signal from this microcomputer, and the microcomputer uses the combustion means based on the deviation between the room temperature and the set temperature. And a controller for controlling the blower, wherein the microcomputer operates the blower in a high-speed mode in which the air volume is larger than in the normal mode when the air cleaning operation switch is turned on and the combustion operation switch is turned on. It was made to let.

The hot air heater according to claim 2 of the present invention outputs an air cleaning operation start signal and an air cleaning operation stop signal based on the ON / OFF operation of the air cleaning operation switch, and turns the combustion operation switch ON / OFF. A warm air heater with an air cleaner including a microcomputer that outputs a combustion start signal and a combustion stop signal based on an operation, and a blower controlled based on the signal from the microcomputer, an air cleaning means, and a combustion means. ,
The microcomputer has a normal mode in which the blower is operated at a variable speed determined based on a deviation between a room temperature and a set temperature when the combustion operation switch is turned on, and an air cleaning operation switch is turned on and combustion is performed. Operation switch is O
When the N operation is performed, it is determined based on the deviation between the room temperature and the set temperature, and the high speed mode in which the blower is operated at the high speed rotation speed in which the air volume is larger than the normal mode is switched.

According to a third aspect of the present invention, in the hot air heater, the microcomputer only turns on the air cleaning operation switch.
When operated, the blower is operated in an air cleaning mode in which it is operated at a fixed rotation speed.

The hot air heater according to claim 4 of the present invention outputs an air cleaning operation start signal and an air cleaning operation stop signal based on the ON / OFF operation of the air cleaning operation switch, and turns the combustion operation switch ON / OFF. A warm air heater with an air cleaner including a microcomputer that outputs a combustion start signal and a combustion stop signal based on an operation, and a single blower controlled based on the signal from the microcomputer, an air cleaning means, and a combustion means. In the microcomputer, only the air cleaning operation switch is turned on.
A mode in which the blower is operated at a fixed rotation speed when N is operated, and a variable rotation speed which is determined based on the deviation between the room temperature and the set temperature when only the combustion operation switch is ON-operated. Heating mode, the air cleaning operation switch is turned on and the combustion operation switch is turned on
When operated, it is determined based on the deviation between the room temperature and the set temperature, and the high-speed mode in which the blower is operated at a high-speed rotation speed with a larger air volume than the heating mode is switched.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings. 1 is a schematic block circuit diagram of a control device in a warm air heater with an air purifier of the present invention, FIG. 2 is a flowchart showing an example of a blower air volume control operation of the control device, and FIG. 3 is an abnormality of the air purifier in the control device. 4 is a flow chart showing an example of the detection operation, FIG. 4 is a side sectional view showing an example of a warm air heater with an air cleaner, and FIG. 5 is a schematic view showing a dust collecting part of the air cleaner.

As shown in FIG. 4, the air purifier according to the present invention is mainly composed of a suction port filter 3 and a dust collecting portion 4 attached near an air suction port 2 formed on the back surface of the warm air heater 1. In addition, the warm air heater 1 incorporates a control device S as shown in FIG.

In FIG. 1, the control device S includes a warm air blower 5 for sucking in the air outside the air suction port 2 and discharging warm air into the room from a warm air outlet of the warm air heater 1. 1. A combustion control circuit 6 for controlling a combustion device B such as a burner device and a fuel supply pump of No. 1 and a microcomputer as control means for outputting a control signal to a driver 7 for operating the dust collecting part 4 (hereinafter simply referred to as a microcomputer). ) 8 constitutes the main part. Although the warm air blower 5 may be referred to as a combustion device by including it in the combustion device, the warm air blower 5 is also operated when operating the air cleaning function in the dust collecting portion 4 arranged near the suction port 2. Therefore, in this embodiment, both are shown separately.

FIG. 5 is an electrical schematic diagram of the structure of the dust collecting portion 4. This dust collecting portion 4 is a positive electrode of the dust collecting electrode 2.
0 and a dust collecting plate 21 which is a negative electrode, and the dust collecting plate 21 is charged by electromagnetic waves (for example, corona discharge) generated between the positive and negative electrodes when a high voltage is generated in the voltage generating unit 11A described later. Are to be collected in.

The microcomputer 8 includes an air cleaning operation switch 9 for manually controlling the operation stop of the air cleaner, a combustion operation switch 10 for manually controlling the operation stop of the combustion apparatus B, and a voltage generator described later. 11 and the signal from the room temperature sensor T which detects the room temperature of the room in which the heater 1 is arranged, respectively. The microcomputer 8 also outputs an air cleaning operation start signal and an air cleaning operation stop signal to the driver 7 and the blower 5 based on the ON / OFF operation of the air cleaning operation switch 9, and turns on the combustion operation switch 10.
The combustion start signal and the combustion stop signal are output to the blower 5 and the combustion control circuit 6 based on the OFF operation.

The microcomputer 8 periodically inputs an abnormal signal from the detection unit 11B of the voltage generator 11, and when the abnormal signal from the detection unit continues for a predetermined number of times or more, a device stop signal (combustion in detail). A stop signal and an air-cleaning operation stop signal) and outputs an air blower operation signal for forcibly operating the air blower 5 regardless of whether the combustion apparatus B is stopped when the number of times is less than a predetermined number. There is.

The abnormality judging section 80 is a detecting section 11 which will be described later.
A counter unit 81 that receives a signal of B (abnormality detection signal) and counts, and also receives a signal of the detection unit 11B (abnormality detection signal) to forcibly operate the blower 5 and stop the operation of the air cleaner by the driver 7. The blower control unit 82 that outputs a signal to stop the air purifier and a signal (abnormality determination signal) output when the count number of the counter unit 81 reaches a predetermined number (for example, three times) receive the air. Device control unit 83 for stopping the operation of the purifier and the warm air heater 1.
And a timer unit (not shown) for measuring a fixed time (for example, 1 minute) at the time of outputting the abnormality detection signal of the detection unit 11B and outputting a signal for starting the operation of the air cleaner after the fixed time. Based on the output of the detection unit 11B, the operation of the combustion blower 5 of the warm air heater and the voltage generation unit 11A is controlled.

The driver 7 operates (turns on) based on an air cleaning operation start signal from the microcomputer 8 to turn on the voltage generator 11.
The power supply voltage of the commercial alternating-current power supply 12 is applied to, and stopped (turned off) based on the air cleaning operation stop signal of the microcomputer 8 so that the voltage applied to the voltage generator 11 becomes zero.

Reference numeral 11 denotes a voltage generator 11A which generates a high voltage (for example, 5 to 6 kV) by applying a power supply voltage to collect dust.
And turning on and off the transistor with a low voltage corresponding to the voltage generated in the voltage generator 11A to output a high level signal (hereinafter referred to as H signal) and a low level signal (hereinafter referred to as L signal) to the inverter, and the voltage generator 11A is a voltage generator including a detection unit 11B that detects an abnormality of 11A. The voltage generator 11A has a transformer whose secondary side is divided into two. This transformer is connected to the primary winding connected to the commercial AC power supply and the dust collecting electrode 20 facing the dust collecting plate 21. It has a first winding on the secondary side and a second winding on the secondary side connected between the base and collector of the transistor of the detection unit 11B.

Based on the above configuration, the combustion control operation, the blower control operation, and the abnormality detection operation of the air purifier in the control device S will be briefly described with reference to FIGS. 2 and 3. FIG. 2 shows the flow of the combustion control operation and the blower control operation.

First, the operation mode desired by the user is detected. That is, in step N1, it is determined whether or not the combustion mode is set, in other words, the combustion operation switch 10 is turned on and the presence or absence of a flag indicating the combustion mode state is determined. If there is no combustion mode flag, the process proceeds to step N5, and if there is a flag. At step N2, room temperature control is performed to determine the combustion amount based on the difference between the set temperature and room temperature, and then step N3
Then, the rotation number of the fan motor is determined based on the determined combustion amount, a fan motor control signal is output from the blower control unit 82, and the process returns to step N1.

The operation mode of the blower in the flow of steps N1 to N3 is called a normal mode. That is, in this normal mode, the blower is operation-controlled by the variable rotation speed determined based on the deviation between the room temperature and the set temperature.

At step N5, it is judged whether or not the mode is the (combustion + air-cleaning) mode, in other words, both the combustion operation switch 10 and the air-cleaning operation switch 9 are turned on to determine whether or not there is a flag indicating the (combustion + air-cleaning) mode state. If there is no flag indicating the (combustion + air purging) mode, the process proceeds to step N10,
If there is a flag, in step N6 room temperature control is performed to determine the combustion amount based on the difference between the set temperature and room temperature, in step N7 the fan motor speed based on the determined combustion amount is determined, and in step N8. The high-speed rotation speed is determined by adding a predetermined rotation speed to the rotation speed, the fan control unit 82 outputs a fan motor control signal based on the high-speed rotation speed, and the process returns to step N1.

The operation mode of the blower in the flow of steps N5 to N8 is called a high speed mode. That is, in this high speed mode, the blower is operated and controlled at a higher speed than the normal mode, which is determined based on the deviation between the room temperature and the set temperature.

When the air cleaning operation switch 9 and the combustion operation switch 10 are turned on, the microcomputer 8 operates the blower 5 in the high speed mode in which the air volume is larger than that in the normal mode. The conventional inconvenience that the respective capacities are reduced as compared with the air cleaning capacity and the heating capacity during the independent operation was solved, and the desired air volume could be secured. In addition, the temperature change characteristics are improved as compared with the conventional one.

Further, during the heating operation, the combustion amount (in particular, the air flow rate of the blower 5) changes according to the change of the room temperature to be heated. By shifting to a high-speed mode in which the blower 5 is operated at a high rotation speed that increases the air flow rate, it is possible to suppress and mitigate the insufficient air flow rate during simultaneous operation of both functions.

In step N10, it is determined whether or not the air-cleaning mode, in other words, whether or not the air-cleaning operation switch 9 is turned on and whether or not there is a flag indicating the air-cleaning mode state. If there is no flag indicating the air-cleaning mode state, the process proceeds to step N13. The operation of the combustion device B and the blower 5 is stopped and the process returns to step N1.

If there is a flag indicating the air-cleaning mode state, in step N11, it is decided to operate the fan motor at a constant rotation speed (that is, a fixed rotation speed), and the fan control unit 82 determines a fan based on the fixed rotation speed. A motor control signal is output and the process returns to step N1.

The operation mode of the blower in the flow of steps N10 to N11 is called a steady mode or a fixed mode. That is, in this fixed mode, the blower is operated and controlled by the fixed rotation speed regardless of the deviation between the room temperature and the set temperature.

In the air-cleaning independent operation in which only the air-cleaning operation switch 9 is turned ON, the microcomputer 8 forcibly operates the blower 5 in the fixed mode to control the air volume in the high-speed mode (normal mode + fixed mode). It became easier to set the air volume, the design became easier, and the versatility as a heater increased.

In particular, if the air flow rate difference between the high speed mode and the low speed (normal) mode is set to be the same as the air flow rate in the fixed mode during the independent operation of the air cleaning function, the same heating and air cleaning capacity as that during the independent operation can be realized. The added value as a product is improved.
However, in order to effectively operate the air cleaning function, it is necessary to set the number of rotations in the fixed mode to a relatively high number of eye rotations in the heating only operation, and therefore the air volume is too large for the heating operation and the flame lifting ( In other words, the "flying fire" phenomenon is likely to occur. Therefore, it is better to set the predetermined rotation speed in the high speed mode lower than the fixed rotation speed in the fixed mode.

As described above, since the blower air volume (more specifically, the operation mode of the blower 5) is automatically changed according to the selection of the operation mode based on the operation state of the both operation switches 9 and 10, the conventional method is used. It was possible to solve the problems such as insufficient air flow, insufficient capacity, deterioration of temperature change characteristics, and noise problems that occurred in the desired operation mode. The air cleaning operation switch 9 is turned on, and the combustion operation switch 10
When is turned on, by operating the blower 5 in a high-speed mode in which the air volume is larger than in the normal mode, it is possible to solve the problem that the respective capacities are reduced compared to the air cleaning capacity and the heating capacity in the independent operation. It is possible to secure the required air volume and improve the temperature change characteristics as compared with the conventional one. Moreover, the amount of combustion, especially the air volume of the blower, changes according to the change of the room temperature to be heated, but during simultaneous operation of air cleaning and heating, shift to the high-speed mode in which the blower is operated at a higher speed than the normal mode. By doing so, it is possible to suppress and mitigate the shortage of the air volume during the simultaneous operation of both functions. Also, by executing the fixed mode, set the air volume difference between the high-speed mode and the low-speed (normal) mode to the air volume of the fixed mode when the air cleaning function operates independently, that is, set the air volume of the high-speed mode to the air volume of the normal mode + the fixed mode. It becomes easier to set and versatility increases. Next, in FIG. 3, first, when the combustion operation switch 10 of the warm air heater with an air purifier 1 is turned on, a combustion start signal for operating the combustion device is output from the microcomputer 8 to the combustion control circuit 6, and the combustion control circuit While a predetermined combustion operation is controlled by 6 to start combustion, an operation signal is output to the warm air blower 5 and warm air is blown from the front surface of the warm air heater to perform heating operation. In addition, the combustion operation switch 10 is set to O
Combustion stops when FF operation is performed.

On the other hand, when the air cleaning operation switch 9 is turned on, an air cleaning operation start signal is output from the microcomputer 8 to the driver 7, and the driver 7 is turned on to turn on the voltage generator 1.
The power supply voltage of the commercial AC power supply is applied to 1. Therefore, a predetermined high voltage (5 in this embodiment) is generated in the voltage generator 11A.
(6 kV) is generated and dust charged by the electromagnetic waves generated between the dust collecting plate 21 and the dust collecting electrode 20 is collected in the dust collecting plate 21 and the air cleaning operation is started, and the detection unit 11 is started.
In B, the abnormality of the voltage generator 11A is detected.

That is, since the output greatly changes depending on the presence or absence of dust between the dust collecting plate 21 and the dust collecting electrode 20 and the inclusion of foreign matter, a low voltage proportional to the output voltage of the voltage generator 11A is detected by this detector. The error occurrence is detected by importing into 11B. To detect the occurrence of an abnormality, the transistor may be arranged in a circuit so that the conduction / non-conduction of the transistor is changed by a low voltage, and the occurrence of the abnormality may be detected when the transistor is non-conduction. When this abnormality occurs, the microcomputer 8 performs a series of operations described later.

In FIG. 3, the microcomputer 8 is operated in step S1.
It is determined whether or not the air cleaning operation start signal is output from the control unit. If the air cleaning operation start signal is not output, the process proceeds to step S20. If the air cleaning operation start signal is output, the detection unit is detected in step S2. It is determined whether or not the L signal is output from 11B (that is, whether or not the abnormality of the air purifier is detected).

If the L signal is not output from the detection section 11B in step S2, it is determined that there is no abnormality and step S2 is performed.
If it goes to 0 and the L signal is output, it is judged that there is something abnormal for the time being, and in step S3 the timer unit for stopping the air cleaner for a certain period of time (herein referred to as delay time, specifically 1 minute). Is set (that is, whether the abnormal delay time of the air cleaner is set).

If the timer section is not set in step S3, it is judged that the first (first) abnormality has occurred, and in step S4 an air cleaning operation stop signal is output (that is, the air cleaner output is turned off). The blower operation signal for operating the warm air blower 5 is output from the blower control unit 82 regardless of the stoppage of the combustion device, the timer unit is set in step S5, the process proceeds to step S20, and the timer unit is set. For example, it is determined in step S6 whether or not a fixed time has elapsed (that is, whether or not the delay time has exceeded).

If the delay time is not exceeded in step S6, the process proceeds to step S20. If the delay time is exceeded, an air cleaning operation start signal is output (that is, the air cleaner output is turned on) in step S7, and the next step In S8, it is again determined whether the L signal is output from the detection unit 11B (that is, whether the abnormality of the air purifier is detected).

If the L signal is not output from the detection unit 11B in step S8, the counter unit 81 is output in step S9.
Is reset (that is, the air purifier abnormality counter is cleared), the abnormality is released in step S10, and it is determined that there is no abnormality (that is, the air purifier is normal) and step S20 is performed.
If the L signal is output from the detection unit 11B again, the counter unit 81 counts in step S11 (that is, the air purifier abnormality counter is decremented by 1), and the process proceeds to step S12.
Then, it is determined whether the counter unit 81 has counted a predetermined number (for example, three times) (that is, the counter becomes 0 and is over).

If it is determined in step S12 that the counter is not over, it is determined that the abnormality has not been canceled, and step S12 is performed.
At 13, the output of the air purifier is turned off again, and a blower operation signal is output from the blower controller 82, and the next step S
The timer unit is set again at 14 and the process proceeds to step S20.

On the other hand, if the counter is over in step S12, it is determined that the air purifier is not a minor failure (light abnormality) but a serious abnormality (that is, equipment abnormality), and an equipment stop signal is output. That is, in step S15, the output of the air purifier is turned off to completely stop the normal operation, and in step S16, the error of the air purifier indicating that the device abnormality has occurred is set, while the error is displayed on the display not shown. At the same time, the device control unit 83 outputs a combustion stop signal for forcibly stopping the combustion operation of the warm air heater 1 with an air purifier to forcibly stop the combustion operation of the warm air heater 1 (that is, a reset drop). Let). Due to this reset failure, the warm air heater and the air purifier do not restart until the abnormality of the air purifier is canceled.

As described above, based on the abnormal signal (L signal) output from the detection unit 11B, the blower 5 of the warm air heater is first forced to operate, so that the blower blows from this blower. The dust collecting electrode 20 of the voltage generator 11A
It is possible to blow away a small amount of dust (or dust) adhering to (or the dust collecting plate 21) or a small amount of dust or dust (that is, to cancel a slight abnormality). Further, the abnormality determination unit 80 of the microcomputer 8 periodically inputs an abnormality signal (L signal) from the detection unit 11B of the voltage generator 11, and when this abnormality signal is continuously input a predetermined number of times or more, It outputs a device stop signal, especially a combustion stop signal to stop the combustion operation, and outputs a blower operation signal to forcibly operate the blower if the number of times is less than the specified number of times. The accuracy of determining whether or not the abnormality is important enough to stop the combustion operation in the section 80 (that is, the accuracy of determining whether the light abnormality is a serious abnormality) can be improved as compared with the related art, and as the warm air heater 1 with an air cleaner. The safety of is improved.

In particular, the abnormality judging section 80 is provided with the voltage generator 11.
Of the detection unit 11B, and a counter unit 81 that counts each time the abnormality signal is input, and a blower control that outputs a blower operation signal for forcibly operating the blower when counted by the counter unit 81 Since the unit 82 and the device control unit 83 that outputs the device stop signal that stops the operation of the device when the abnormal signal is counted by the counter unit 81 a predetermined number of times or more are provided, the number of times for the abnormality determination can be set. Since the output of the combustion stop signal can be controlled based on the output of the counter unit 81, the accuracy of abnormality determination can be improved. Moreover, since the count value of the counter unit 81 is reset every time the combustion start signal is output, it is possible to suppress the generation of an inadvertent combustion stop signal and improve the control accuracy of the warm air heater.

[0044]

According to the invention of claim 1, when the air cleaning operation switch is turned on and the combustion operation switch is turned on, the blower is operated in the high speed mode in which the air volume is larger than in the normal mode. In addition, it is possible to solve the problem that the respective capacities are reduced as compared with the air cleaning capacity and the heating capacity during the independent operation, it is possible to secure a desired air volume, and it is possible to improve the temperature change characteristics as compared with the conventional one.

According to the second aspect of the present invention, the combustion amount, especially the air amount of the blower, changes according to the change of the room temperature to be heated. However, the air amount is made larger than in the normal mode during the simultaneous operation of air cleaning and heating. By shifting to a high speed mode in which the blower is operated at a high speed, it is possible to suppress and mitigate the shortage of air volume during simultaneous operation of both functions. In particular, if the airflow difference between the high-speed mode and low-speed (normal) mode is set to be the same as the fixed airflow during independent operation of the air cleaning function, the same heating and air cleaning capacity as in independent operation can be achieved, adding value as a product. Is improved.

According to the invention of claim 3, claim 1 or 2
In addition to the effect of, the execution of the fixed mode makes it easier to set the air volume in the high-speed mode to the air volume in the normal mode + the fixed mode, thus increasing versatility.

According to the fourth aspect of the invention, when the air cleaning operation switch is turned on and the combustion operation switch is turned on, the blower is operated in the high speed mode in which the air volume is larger than in the normal mode, so that the fan is operated independently. It is possible to solve the problem that the respective capacities are reduced as compared with the air cleaning capacity and the heating capacity at the time, it is possible to secure a desired air volume, and it is possible to improve the temperature change characteristics as compared with the conventional one. Moreover, the amount of combustion, especially the air volume of the blower, changes according to the change of the room temperature to be heated, but during simultaneous operation of air cleaning and heating, shift to the high-speed mode in which the blower is operated at a higher speed than the normal mode. By doing so, it is possible to suppress and mitigate the shortage of the air volume during the simultaneous operation of both functions. Also, by executing the fixed mode, set the air volume difference between the high-speed mode and the low-speed (normal) mode to the air volume of the fixed mode when the air cleaning function operates independently, that is, set the air volume of the high-speed mode to the air volume of the normal mode + the fixed mode. This makes it easier to set up, increases versatility, and can achieve the same heating and air cleaning capabilities as when operating alone, thus improving the added value of the product.

[Brief description of drawings]

FIG. 1 is a schematic block circuit diagram of a control device in a warm air heater with an air cleaner according to the present invention.

FIG. 2 is a flowchart showing an example of a blower air volume control operation of the control device of the present invention.

FIG. 3 is a flowchart showing an example of an abnormality detection operation of the air purifier in the control device of the present invention.

FIG. 4 is a side sectional view showing an example of a warm air heater with an air purifier.

FIG. 5 is a schematic view showing a dust collecting portion of the air purifier.

[Explanation of symbols]

 1 Hot Air Heater with Air Purifier B Combustion Device S Control Device 4 Dust Collection Part 5 Hot Air Blower (Blower) 6 Combustion Control Circuit 7 Driver 8 Microcomputer (Microcomputer) 9 Air Purification Operation Switch 10 Combustion Operation Switch

Claims (4)

[Claims] 1. A blower and an air cleaning operation switch are turned on.
・ Outputs an air cleaning operation start signal and an air cleaning operation stop signal based on the OFF operation, and turns the combustion operation switch ON / O.
It is equipped with a microcomputer that outputs a combustion start signal / combustion stop signal based on FF operation, and an air cleaning means and a combustion means that are controlled based on the signal from this microcomputer. The microcomputer burns based on the deviation between the room temperature and the set temperature. In the warm air heater with an air purifier having a control unit for controlling the air blower and the air blower, the microcomputer causes the air blower to blow more air than the normal mode when the air purifying operation switch is turned on and the combustion operation switch is turned on. A warm air heater with an air purifier that is operated in high-speed mode with many 2. An air cleaning operation start signal / air cleaning operation stop signal is output based on ON / OFF operation of the air cleaning operation switch, and a combustion start signal / combustion stop signal is output based on ON / OFF operation of the combustion operation switch. In a warm air heater with an air purifier equipped with a microcomputer that outputs a signal, a blower controlled based on a signal from the microcomputer, an air cleaning means, and a combustion means, the combustion operation switch of the microcomputer is turned on. A normal mode in which the blower is operated at a variable rotation speed that is sometimes determined based on the deviation between the room temperature and the set temperature, and the room temperature is set when the air cleaning operation switch is turned on and the combustion operation switch is turned on. It is characterized by switching between the high-speed mode in which the blower is operated at a high-speed rotation speed, which is determined based on the deviation from the temperature and has a larger air volume than the normal mode. Hot air heater with air purifier. 3. The microcomputer according to claim 1, wherein the microcomputer operates the air blower in an air cleaning mode in which the blower is operated at a fixed rotation speed when only the air cleaning operation switch is turned on. Hot air heater with air purifier. 4. An air cleaning operation start signal / air cleaning operation stop signal is output based on ON / OFF operation of the air cleaning operation switch, and a combustion start signal / combustion stop signal is output based on ON / OFF operation of the combustion operation switch. In a warm air heater with an air purifier equipped with a microcomputer that outputs a signal and a single blower controlled based on a signal from this microcomputer, an air purifying means and a combustion means, the microcomputer includes only an air purifying operation switch. When the fan is turned on, the blower is operated at a fixed speed, and when the combustion operation switch is turned on, the fan is operated at a variable speed determined based on the deviation between the room temperature and the set temperature. Based on the heating mode to be operated and the deviation between the room temperature and the set temperature when the air cleaning operation switch is turned on and the combustion operation switch is turned on. A hot air heater with an air purifier, which is characterized by switching between a high speed mode in which the blower is driven at a high rotational speed with a larger air volume than the determined heating mode.