JPH07190454A - Operation control equipment for air conditioner - Google Patents

Abstract

PURPOSE:To realize a maintenance-free state of a heater unit by a method wherein an odor component adsorbed on the surface of a heater is reproduced by thermal decomposition caused by periodical forced heating by an operation of the heater unit having a deodorizing function. CONSTITUTION:When an operation of a blower is started, a cumulative time (ta) of the operation is measured by an operation cumulative time measuring means 9 and stored in an operation cumulative time storage means 10. Meanwhile, an odor adsorption amount correction factor cA is changed by an odor adsorption amount correction factor changing means 14 in accordance with the number (n) of operating revolutions of a blower. The aforesaid cumulative time (ta) of the operation and the odor adsorption amount correction factor alpha are subjected to calculation of ts=taXalpha by a correcting operation cumulative time calculating meaqns 15 and the calculated value and a set cumulative time t1 of the operation from a set operation cumulative time storage means I11 are compared by an operation cumulative time comparing means 117 and outputted to a heating part operation control means 21. On the other hand, the passage from the start of the operation and a set time t2 are compared by an operation passage time comparing means II20, and when the result of comparison becomes equal to or larger than the set time t2, it is outputted to the aforesaid heating part operation control means 21. By this heating part operation control means 21, an on-off control of an electric circuit of a heating part is conducted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner in which an indoor unit is provided with a deodorizing device composed of an adsorption type pyrolysis catalyst type deodorizing part and a heating part which is in close contact with the deodorizing part. In the machine, the odorous components adsorbed in the deodorizing part are purified by thermal decomposition to regenerate and recover the deodorizing performance, and heating operation by the heating part to maintain the semi-permanent deodorizing performance (hereinafter referred to as the regenerating and cleaning operation) The present invention relates to an operation control device for.

[0002]

2. Description of the Related Art In a conventional air conditioner, for example, a deodorizing effect against an unpleasant odor such as a cigarette odor or an unpleasant odor in an air intake portion of an indoor unit as disclosed in JP-A-1-107825. Deodorization was performed by attaching an air filter or the like made of urethane foam containing granular activated carbon impregnated with a high deodorant.

[0003]

However, in such a conventional deodorizing apparatus, since the deodorizing performance deteriorates with the passage of time, a new air filter containing granular activated carbon impregnated with a deodorizing agent is purchased every few months. And had to be replaced.

In view of the above, the present invention operates the heater unit having a deodorizing function to regenerate the odorous components adsorbed on the heater surface by thermal decomposition by periodic forced heat generation,
The purpose is to realize maintenance-free heater unit.

[0005]

[Means for Solving the Problems] In order to solve the above problems and to achieve the object, the first means is to provide a material such as metal such as zeolite, alumina, silica, in an indoor unit of an air conditioner. An air conditioner equipped with an adsorption type pyrolysis catalyst type deodorizing device comprising a deodorizing portion coated with a deodorizing catalyst composed of a noble metal, a rare earth oxide or the like, and a heating portion constituted by a heater or the like in close contact with the deodorizing portion. Set operation accumulated time storage means I for storing a predetermined set time in the indoor unit, operation accumulated time measurement means for measuring an actual operation accumulated time from the start of the operation of the blower motor, and the operation accumulated time. Difference in operating cumulative time storage means for storing the cumulative operating time measured by the measuring means, operating rotational speed detecting means for detecting the operating rotational speed of the blowing motor, and operating rotational speed of the blowing motor Therefore, the odor adsorption amount correction coefficient storage means capable of storing a plurality of odor adsorption amount correction coefficients for correcting the accumulated operation time according to the odor adsorption amount of the deodorizing portion, and the operation speed detection means of the blower motor are detected. The odor adsorption amount correction coefficient changing means for changing the odor adsorption amount correction coefficient stored by the odor adsorption amount correction coefficient storage means according to the operating speed, and the operation accumulated time measured by the operation accumulated time measuring means, and the operation accumulated time. Corrected operation accumulated time calculating means for calculating the corrected operation accumulated time by a calculation formula of the actual accumulated operation time stored in the storage means and the odor adsorption amount correction coefficient changed by the odor adsorption amount correction coefficient changing means, and The correction driving cumulative time storage means for storing the correction driving cumulative time calculated by the correction driving cumulative time calculating means and the correction driving cumulative time storing means Is a driving cumulative time comparison means I for comparing the predetermined time correction operation cumulative time defined by the setting operation cumulative time storage unit I was, and elapsed time measuring means II for measuring an elapsed time from the start of operation,
Set time storage means II for storing a predetermined fixed time
And an operation elapsed time comparing means II for comparing the elapsed time of the elapsed time measuring means II with the time of the set time storing means II.
And a heating unit operation control unit that controls the opening and closing of the heating unit electric circuit in response to the determination results of the time comparison units I and II.

The second means is, in addition to the control contents of the first means, an upper limit current value storage means capable of storing a plurality of operating current upper limit values of the air conditioner, and an actual air conditioner operating current. Operating current value detecting means for detecting a value, an upper limit current value changing means for switching a plurality of current upper limit values stored in the upper limit current value storage means according to the output of the heating part operation control means, and the operating current An operating current value comparing means for comparing the operating current value detected by the value detecting means with the upper limit current value selected by the upper limit current value changing means is provided.

The third means is, in addition to the control contents of the first and second means, a compressor operating speed capable of storing a plurality of operating speeds of the compressor in the outdoor unit of the air conditioner. Number storage means, and compressor operating speed changing means for switching a plurality of compressor operating speeds stored in the compressor operating speed storage means in accordance with the output of the heating part operation control means. Is characterized by.

The fourth means is the above first to third means.
In addition to the control contents of the means, according to the output of the blower electric motor operating speed storage means capable of storing a plurality of operating speeds of the blower electric motor in the indoor unit of the air conditioner, and the output of the heating section operation control means. And a blower electric motor operating speed changing means for switching a plurality of blower electric motor operating speeds stored in the blower electric motor operating speed storage means.

The fifth means is the above first to fourth means.
In addition to the control contents of the means, according to the output of the wind direction blade angle storage means capable of storing a plurality of rotation angles of the wind direction blade angle control electric motor in the indoor unit of the air conditioner, and the heating section operation control means. Wind direction blade angle changing means for switching a plurality of wind direction blade angles stored in the wind direction blade angle storage means.

[0010]

According to the present invention, since the regenerating and purifying operation can be automatically carried out at a constant time interval, it becomes unnecessary to purchase and replace a new deodorizing device such as a conventional deodorizing device on a regular basis. An excellent deodorizing performance can be provided to the user semipermanently.

Further, in the present invention, since the upper limit current value set in the current value comparison means during the regeneration / purification operation is set by subtracting the current value generated in the heating section, the operating current flowing in the outdoor unit of the air conditioner is set. Will be controlled by reducing that amount, and the safe regeneration / purification operation control can be performed without exceeding the current capacity of the outlet plug of the air conditioner.

Further, according to the present invention, the compressor operation is not stopped during the regeneration and purification operation, and the operation is continued at a rotational speed as low as possible, so that the comfort of the cooling and heating operation is not impaired.

Further, according to the present invention, during the regeneration / purification operation, the operation speed of the blower electric motor in the indoor unit is reduced to reduce the thermal decomposition temperature (about 300 ° C.) required for the regeneration / purification operation.
It is possible to rapidly raise the temperature up to, and it is possible to end the regeneration purification operation in a short time.

Further, according to the present invention, by controlling the rotation angle of the wind direction control blades provided at the outlet of the indoor unit, it is possible to prevent the blown air from directly hitting the user during the regeneration and purification operation, which is uncomfortable. The regeneration and purification operation can be performed without giving.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are a perspective view and a sectional view of an air conditioner indoor unit equipped with a deodorizing device, respectively. In each of the figures, 1 is a deodorizing section, and a deodorizing catalyst 2
And the heating unit 3, and constitutes a deodorizing device 8. Also,
4 is a suction part, 5 is a heat exchanger, 6 is a blower, and 7 is a casing.

FIG. 3 is a block diagram showing the configuration of an operation control device for an air conditioner according to the first embodiment of the present invention.
In FIG. 3, 9 is a cumulative driving time measuring means for measuring the cumulative driving time (ta) from the start of the blower motor operation, and 10 is a cumulative driving time measured by the cumulative driving time measuring means 9.
A cumulative operation time storage means for storing (ta), 11 is a cumulative operation time storage means (I) for storing a preset cumulative operation time (t1) in the indoor unit of the air conditioner, 12
Is an operating speed detecting means for detecting the operating speed (n) of the blower motor, 13 is the operating speed (n) of the blower motor
Odor adsorption amount correction coefficient storage means capable of storing a plurality of odor adsorption amount correction coefficients (α) for correcting the accumulated operation time (ta) according to the odor adsorption amount of the deodorizing unit 1 caused by the difference The odor adsorption amount correction coefficient for changing the odor adsorption amount correction coefficient (α) stored by the odor adsorption amount correction coefficient storage means 13 according to the operation rotational speed (n) detected by the electric motor operating speed detection means 12 The changing means, 15 is the actual operation accumulated time (ta) measured by the operation accumulated time measuring means 9 and stored in the operation accumulated time storage means 10 and the odor changed by the odor adsorption amount correction coefficient changing means 14. Adsorption amount correction coefficient (α) and a correction operation cumulative time calculating means for calculating the correction operation cumulative time (ts) by a calculation formula, 16 is the correction operation cumulative time (ts) calculated by the correction operation cumulative time calculating means 15 Correction operation cumulative time storage means for storing 17 the correction operation correction operation cumulative time stored by the accumulated time storage means 16
(ts) and the accumulated operation time comparison means for comparing the accumulated operation time storage means (I) 11 with the set time (t1)
(I), 18 are elapsed time measuring means (II) for measuring an elapsed time from the start of operation, 19 is a set time storing means (II) for storing a predetermined set time (t2), and 20 is the elapsed time. Measuring means
(II) Elapsed time comparison means for comparing the elapsed time of 18 with the preset time storage means (II) 19 preset time (t2)
(II) and 21 are heating unit operation control means for controlling the opening / closing of the heating unit electric circuit.

The operation of the above arrangement will be described below. When the operation of the air conditioner is started, the operation of the blower 6 is started, and the accumulated operation time measured by the accumulated operation time measuring means 9 for measuring the accumulated operation time (ta).
(ta) is stored in the cumulative operating time storage means 10. on the other hand,
A plurality of predetermined odor adsorption amount correction coefficients (α) in the odor adsorption amount correction coefficient storage means 13 are odor adsorption according to the operating speed (n) detected by the operating speed detection means 12 of the blower motor. It is changed by the amount correction coefficient changing means 14. Then, the actual accumulated drive time (ta) stored by the accumulated drive time storage means 10 and the odor adsorption amount correction coefficient (α) changed by the odor adsorption amount correction coefficient changing means 14 are calculated as the corrected accumulated operation time. The means 15 calculates the corrected operation cumulative time (ts) (ts = ta × α).

Further, the corrected operation accumulated time (ts) is stored in the corrected operation accumulated time storage means 16, and the corrected operation accumulated time (ts) is stored and set.
(For example, t1 = 12 (h)) is determined by the cumulative operation time comparison means (I) 17, and the set cumulative operation time (t1) is exceeded or the elapsed time from the start of operation is measured. The time of the elapsed time measuring means (II) 18
The elapsed time comparison means (II) 20 determines whether or not the set time (t2) set by the heating section has been reached. It controls the opening and closing of the circuit.

As described above, it becomes possible to perform the heating part operation control at regular time intervals after the cooling operation of the air conditioner is started.

Next, a second embodiment of the present invention will be described. FIG. 4 is a block diagram showing the configuration of an operation control device for an air conditioner according to the second embodiment of the present invention. In FIG.
Reference numeral 22 is an upper limit current value storage means capable of storing a plurality of air conditioner operation current upper limit values, 23 is an operation current value detection means for detecting an actual air conditioner operation current value, and 24 is a heating section operation control means 21.
Upper limit current value changing means for switching a plurality of current upper limit values stored in the upper limit current value storage means 22 according to the output of
Reference numeral 25 is an operating current value comparing means for comparing the operating current value detected by the operating current value detecting means 23 with the upper limit current value selected by the upper limit current value changing means 24. Other,
The blocks having the same elements as those in FIG. 3 are designated by the same reference numerals, and the description thereof will be omitted.

In the above structure, the operation of the part according to the second embodiment will be described. When the cooling operation is started in the air conditioner, the heating section operation control means 21 controls the opening / closing of the heating section electric circuit. Then, when the heating unit electric circuit is open, that is, during the regeneration purification operation, the upper limit current value preset in the upper limit current value storage means 22 (for example,
I1 = 13.2A) is changed to a plurality of current value upper limit values (for example, I2 = 10.2A) stored in the upper limit current value storage means 22 in order to reduce the current value generated in the heating section 3. It is switched by means 24.

The operating current value in the air conditioner detected by the operating current value detecting means 23 is determined by the operating current value comparing means 25 by the upper limit current value changing means 24 (for example, I2 = Compared with 10.2A). As described above, the upper limit current value during the regeneration / purification operation is set by subtracting the current value generated in the heating unit 3, and thus the operating current flowing through the indoor unit of the air conditioner is reduced and controlled accordingly. Therefore, it is possible to perform the safe regeneration and purification operation control without exceeding the current capacity of the outlet plug of the air conditioner.

Next, a third embodiment of the present invention will be described. FIG. 5 is a block diagram showing the configuration of an operation control device for an air conditioner according to the third embodiment of the present invention. In FIG.
31 is a compressor operating speed storage means capable of storing a plurality of operating speeds of the compressor in the outdoor unit of the air conditioner; 32 is the operating speed of the compressor according to the output of the heating section operation control means 21. It is a compressor operating speed changing means for switching a plurality of compressor operating speeds stored in the storage means 31. Other than that, the blocks having the same elements as those in FIG. 3 and FIG.

In the above structure, the operation of the part according to the third embodiment will be described. When the operation of the air conditioner is started, the heating part operation control means 21 controls the opening and closing of the heating part electric circuit. When the electric circuit of the heating unit is open, that is, during the regeneration / purification operation, the compressor operating speed changing means 32 causes the compressor operating speed to be stored in the compressor operating speed storing means 31 in advance. The compressor operating speed (for example, N1 = 1600 rpm) is switched to. As described above, the compressor operation is not stopped during the regeneration / purification operation, and the compressor is operated at the lowest possible rotation speed, so that the comfort of the living space is not impaired.

Next, a fourth embodiment of the present invention will be described. FIG. 6 is a block diagram showing the configuration of an operation control device for an air conditioner according to the fourth embodiment of the present invention. In FIG.
Reference numeral 41 is a blower electric motor operating speed storage means capable of storing a plurality of operating speeds of the blower electric motor in the indoor unit of the air conditioner, and 42 is the blower electric motor according to the output of the heating section operation control means 21. It is a blower electric motor operating speed changing means for switching a plurality of blower electric motor operating speeds stored in the operating speed storage means 41. In addition, FIG. 3 to FIG.
The blocks having the same elements as those are denoted by the same reference numerals, and the description thereof will be omitted.

In the above structure, the operation of the portion according to the fourth embodiment will be described. When the operation of the air conditioner is started, the heating part operation control means 21 controls the opening and closing of the heating part electric circuit. Then, when the heating unit electric circuit is open, that is, during the regeneration purification operation, the blower electric motor operating speed changing unit 42 stores the blower electric motor operating speed in advance in the blower electric motor operating speed storage unit 41. Multiple blower motor operating speeds (eg n1 = 800rp
m). As described above, during the regeneration / purification operation, by reducing the operating speed of the blower motor in the indoor unit, the thermal decomposition temperature (about 300
(° C) can be rapidly increased, and the regeneration and purification operation can be completed in a short time.

Next, a fifth embodiment of the present invention will be described. FIG. 7 is a block diagram showing the configuration of an operation control device for an air conditioner according to the fifth embodiment of the present invention. In FIG.
Reference numeral 51 is a wind direction blade angle storage means capable of storing a plurality of rotation angles of the wind direction blade angle control motor in the indoor unit of the air conditioner, and 52 is the wind direction blade angle storage means according to the output of the heating section operation control means 21. A wind direction blade angle changing means for switching a plurality of wind direction blade angles stored in the means 51. Other than that, blocks having the same elements as those in FIG. 3 to FIG.

The operation of the part according to the fifth embodiment having the above structure will be described. When the operation of the air conditioner is started, the heating part operation control means 21 controls the opening and closing of the heating part electric circuit. When the heating part electric circuit is open, that is, during the regeneration / purification operation, the wind direction blade angle changing means 52 causes the wind direction blade angle storage means 51 to store a plurality of wind direction blade angles (for example, θ = 20). °). As described above, during the regeneration / purification operation, by controlling the rotation angle of the wind direction control blades provided at the air outlet of the indoor unit, the air blown out directly during the regeneration / purification operation,
The user can be prevented from hitting, and the regeneration / purification operation can be performed without causing discomfort.

[0029]

As described above, the operation control device for an air conditioner according to the present invention can automatically perform the regeneration / purification operation at a constant time interval, so that it is possible to perform periodical recycle operation like a conventional deodorizing device. There is no need to purchase and replace a new deodorizing device,
In addition, it is possible to semipermanently provide the user with extremely excellent deodorizing performance.

Further, in the present invention, since the upper limit current value set in the current value comparison means during the regeneration / purification operation is set by subtracting the current value generated in the heating section, the operating current flowing in the outdoor unit of the air conditioner is set. Will be controlled by reducing that amount, and the safe regeneration / purification operation control can be performed without exceeding the current capacity of the outlet plug of the air conditioner.

Further, in the present invention, the compressor operation is not stopped during the regeneration / purification operation, and the operation is continued at a rotational speed as low as possible, so that comfort of cooling / heating operation is not impaired.

Further, in the present invention, during the regeneration / purification operation, by reducing the operation speed of the blower electric motor in the indoor unit, the thermal decomposition temperature required for the regeneration / purification operation (about 300 ° C.)
It is possible to rapidly raise the temperature up to, and it is possible to end the regeneration purification operation in a short time.

Further, according to the present invention, by controlling the rotation angle of the wind direction control blades provided at the air outlet of the indoor unit, it is possible to prevent the blown air from directly hitting the user during the regeneration and purification operation, which is uncomfortable. The regeneration and purification operation can be performed without giving.

[Brief description of drawings]

FIG. 1 is a perspective view of an air conditioner indoor unit that is a target of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the air conditioner indoor unit shown in FIG.

FIG. 3 is a block diagram showing a configuration of an operation control device for an air conditioner according to the first embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of an operation control device for an air conditioner according to a second embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of an operation control device for an air conditioner according to a third embodiment of the present invention.

FIG. 6 is a block diagram showing a configuration of an operation control device for an air conditioner according to a fourth embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of an operation control device for an air conditioner according to a fifth embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Deodorizing part, 2 ... Deodorizing catalyst, 3 ... Heating part, 4 ... Suction part, 5 ... Heat exchanger, 6 ... Blower, 7 ... Casing, 8 ... Deodorizing device, 9 ... Accumulated operation time measuring means,
10 ... Accumulated operation time storage means, 11 ... Set accumulated operation time storage means (I), 12 ... Operating speed detection means, 13 ... Odor adsorption amount correction coefficient storage means, 14 ... Odor adsorption amount correction coefficient changing means, 15 ... Correction operation cumulative time calculating means, 16 ... Correction operation cumulative time storage means, 17 ... Operation cumulative time comparing means
(I), 18 ... Elapsed time measuring means (II), 19 ... Set time storing means (II), 20 ... Running elapsed time comparing means (II), 21 ...
Heating unit operation control means, 22 ... Upper limit current value storage means, 23
… Operating current value detecting means, 24… Upper limit current value changing means,
25 ... Operating current value comparing means, 31 ... Compressor operating speed storing means, 32 ... Compressor operating speed changing means, 41 ... Blower electric motor operating speed storing means, 42 ... Blower electric motor operating speed changing means, 51 ... Wind direction blade angle storage means, 52 ... Wind direction blade angle changing means.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsunori Axbayashi 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (5)

[Claims] 1. A deodorizing portion in which a deodorizing catalyst made of zeolite, alumina, silica, a noble metal, a rare earth oxide or the like is applied to a material such as a metal in an indoor unit of an air conditioner, and a heater closely attached to the deodorizing portion. Set operation cumulative time storage means I for storing a preset set time in the indoor unit of the air conditioner, which is provided with an adsorption type pyrolysis catalyst type deodorizing device having a heating unit configured by Driving cumulative time measuring means for measuring the actual driving cumulative time from the start of operation of the blowing motor, operating cumulative time storing means for storing the cumulative driving time measured by the driving cumulative time measuring means, and driving of the blowing motor An operating speed detecting means for detecting the rotational speed and an odor adsorbing amount correcting means for correcting the accumulated operating time in accordance with the odor adsorbing amount of the deodorizing part caused by the difference in the operating speed of the blowing motor. Odor adsorption amount correction coefficient storage means capable of storing a plurality of positive coefficients, and odor stored by the odor adsorption amount correction coefficient storage means in accordance with the operating speed detected by the operating speed detection means of the blower electric motor. Odor adsorption amount correction coefficient changing means for changing the adsorption amount correction coefficient, actual operation accumulated time measured by the operation accumulated time measuring means and stored in the operation accumulated time storage means, and the odor adsorption amount correction coefficient changing means The correction operation cumulative time calculating means for calculating the correction operation cumulative time with the odor adsorption amount correction coefficient changed by the calculation formula, and the correction operation cumulative for storing the correction operation cumulative time calculated by the correction operation cumulative time calculating means Time storage means, correction operation cumulative time stored by the correction operation cumulative time storage means, and a fixed time determined by the set operation cumulative time storage means I And a cumulative driving time comparing means I for comparing the following, an elapsed time measuring means II for measuring an elapsed time from the start of operation, a set time storage means II for storing a predetermined fixed time, and the elapsed time measuring means II. Driving elapsed time comparing means II for comparing the elapsed time of the above with the time of the set time storing means II and the time comparing means I,
An operation control device for an air conditioner, comprising: a heating section operation control means for controlling the opening / closing of the heating section electric circuit in response to the determination result of II. 2. An upper limit current value storage means capable of storing a plurality of operating current upper limit values of the air conditioner, an operating current value detection means for detecting an actual operating current value of the air conditioner, and the heating section operation control means. The upper limit current value changing means for switching a plurality of current upper limit values stored in the upper limit current value storage means, the operating current value detected by the operating current value detecting means, and the upper limit current value changing means. The operation control device for an air conditioner according to claim 1, further comprising: an operating current value comparing unit that compares the upper limit current value selected by the above. 3. A compressor operation speed storage means capable of storing a plurality of operation speeds of a compressor in an outdoor unit of an air conditioner, and the compressor operation according to an output of the heating section operation control means. The operation control device for an air conditioner according to claim 1 or 2, further comprising: compressor operating speed changing means for switching a plurality of compressor operating speeds stored in the rotating speed storage means. 4. A blower electric motor operating speed storage means capable of storing a plurality of operating speeds of a blower electric motor in an indoor unit of an air conditioner, and the blower according to an output of the heating section operation control means. 4. The air conditioner according to claim 1, further comprising: a blower electric motor operating speed changing means for switching a plurality of blower electric motor operating speeds stored in the electric motor operating speed storing means. Machine operation control device. 5. A wind direction blade angle storage means capable of storing a plurality of rotation angles of a wind direction blade angle control electric motor in an indoor unit of an air conditioner, and the wind direction blade according to an output of the heating section operation control means. The operation control device for an air conditioner according to claim 1, 2, 3, or 4, further comprising: wind direction blade angle changing means for switching a plurality of wind direction blade angles stored in the angle storage means.