JPH07139781A - Operation controller for air conditioner - Google Patents

Abstract

PURPOSE:To maintain semipermanent deodorizing performance by controlling the operation of a heater at predetermined time intervals when the operation accumulating time is a set time or more and a suction temperature difference is a set temperature difference or less. CONSTITUTION:When a cooling operation is started, an operation accumulating time measured by operation accumulating time measuring means 7 is compared with a set operation accumulating time set and stored by set operation accumulating time memory means 9. Upper and lower limit values of a suction temperature are measured by suction temperature measuring means 16, and a different temperature of the upper and lower limit values of the suction temperature calculated by suction temperature difference calculating means 17 is compared with a set suction temperature difference stored in set suction temperature difference memory means 18. If the drive accumulating time is the set drive accumulating time or more and the suction temperature difference is the set suction temperature difference or less, heater drive control means 15 controls to drive a heater. Thus, a heating drive (regenerating and cleaning drive) upon thermal decomposition at a predetermined time interval can be automatically executed, and semipermanently deodorizing performance can be maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit which is provided with a deodorizing device comprising an adsorption type pyrolysis catalyst type deodorizing section and a heating section which is in close contact with the deodorizing section and is constituted by a heater or the like. In the harmony machine, the heating operation by the heating part (hereinafter referred to as the regenerating and cleaning operation) to regenerate and recover the deodorizing performance by purifying the odorous components adsorbed in the deodorizing portion by thermal decomposition and maintain the semi-permanent deodorizing performance. 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 cigarette odor or nightmarine 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 deodorizing agent.

[0003]

However, since the deodorizing performance of such a conventional deodorizing device deteriorates with the passage of time, a new air filter containing granular activated carbon impregnated with a deodorizing agent is purchased every few months. Had to replace.

[0004]

Means for Solving the Problems The technical means of the present invention for solving the above-mentioned problems is to oxidize zeolite, alumina, silica, noble metals, rare earth metals as raw materials such as metals in an indoor unit of an air conditioner. The deodorizing device of the adsorption type thermal decomposition catalyst system is equipped with a deodorizing part coated with a deodorizing catalyst consisting of materials and a heating part that is in close contact with the deodorizing part. Suction temperature measuring means for measuring, suction temperature difference calculating means for calculating a difference between an upper limit value and a lower limit value of the suction temperature measured by the suction temperature measuring means, and a suction temperature difference memory for storing a predetermined constant suction temperature difference. Means, a suction temperature difference comparison means for comparing the difference between the upper limit value and the lower limit value of the suction temperature calculated by the suction temperature calculation means, and the constant suction temperature difference defined by the suction temperature difference storage means, and air conditioning. A time measuring means for measuring a cumulative operating time of the blower electric motor in the indoor unit, a time storing means for storing a predetermined constant time, a cumulative electric motor operating time measured by the time measuring means, An operation control device comprising a time comparison means for comparing a fixed time determined by the time storage means, and a heating section operation control means for controlling the opening / closing of the heating section electric circuit in response to the result of judgment by the time comparison means. Be prepared.

In addition to the above operation control contents, an upper limit current value storage means capable of storing a plurality of air conditioner operation current upper limit values, and an operation current detection means for detecting the operation current value of the air conditioner outdoor unit. And an upper limit current value changing unit for switching a plurality of current upper limit values stored in the upper limit current value storage unit according to the output of the heating unit operation control unit, and an operating current value detected by the operating current detection unit. And an upper limit current value selected by the upper limit current value changing unit, and a current value comparing unit.

Further, in addition to the above operation control contents, a compressor operation speed storage means capable of storing a plurality of operation speeds of the compressor in the outdoor unit of the air conditioner, and the above heating section operation control means. And a compressor operating speed changing means for switching a plurality of compressor operating speeds stored in the compressor operating speed storage means according to the output of the compressor.

Further, in addition to the above operation control contents, 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 the above heating section operation. According to the output of the control means, there is provided 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 storing means.

Further, in addition to the above operation control contents, 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 the above heating section operation control. And a wind direction blade angle changing means for switching a plurality of wind direction blade angles stored in the wind direction blade angle storage means according to the output of the means.

[0009]

The operation of the above technical means is as follows.

According to the present invention, since the regenerating and purifying operation can be automatically carried out at a constant time interval with the above-mentioned constitution, it is unnecessary to regularly purchase and replace a new deodorizing device like the conventional deodorizing device. In addition, it is possible to semi-permanently 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 that amount, and safe regeneration and 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) required for the regeneration / purification operation.
It is possible to rapidly raise the temperature to 0 ° C), and it is possible to end the regeneration and purification operation in a single hour.

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]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are a perspective view and a cross-sectional view of an air conditioner indoor unit including a deodorizing device, respectively. In the figure, 1 is a deodorizing unit, which has a deodorizing catalyst 2 and a heating unit 3. Further, 4 is a suction part, 5 is a heat exchanger, and 6 is a blower electric motor. FIG. 3 is a schematic block diagram of the air conditioner according to the first embodiment of the present invention. In FIG. 3, 11 is a time measuring means for measuring the accumulated operation time from the start of operation of the blower motor, 12 is a time storage means for the accumulated blower motor operation time measured by the time measuring means 11, and 13 is predetermined. Fixed time t1
For storing the time, 14 for the time storage means 12
A time comparing means for comparing the cumulative operation time of the blower electric motor stored in the setting time and the preset time t1 preset and stored in the preset time storage means 13, 15 is a heating section operation control means for controlling opening / closing of the heating section electric circuit, 16 is a measuring means for measuring the upper limit value and the lower limit value of the suction temperature by a thermistor, and 17 is a calculating means for calculating the temperature difference between the upper limit value and the lower limit value of the suction temperature.
Reference numeral 18 denotes a set suction temperature difference storage means for storing the preset suction temperature difference ΔT set and stored in advance.

The operation of the above arrangement will be described below. When the cooling operation is started in the air conditioner, the operation of the blower electric motor 6 is started and the accumulated operation time measured by the accumulated operation time measuring means 7 is stored in the accumulated operation time storage means 8. The accumulated operation time stored in the storage means is the set operation accumulated time t1 stored and set by the set operation accumulated time storage means 9 (for example, 12 [h]).
The accumulated operating time comparison means 10 determines whether or not

Further, the upper limit and the lower limit of the suction temperature are measured by the suction temperature measuring means 17 installed on the suction side of the air conditioner, and the upper limit of the suction temperature calculated by the suction temperature difference calculating means 17 in the microcomputer. Difference temperature Δt between the value and the lower limit value and the set suction temperature difference ΔT stored in the set suction temperature difference storage means 18.
Is compared by the suction temperature difference comparison means 19.

If the cumulative operation time is equal to or longer than the preset cumulative operation time and the suction temperature difference is equal to or smaller than the preset suction temperature difference, the heating section operation control means 15 controls the opening / closing of the heating section electric circuit. As described above, the heating unit operation control can be performed at a constant time interval 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 schematic block diagram of the air conditioner in the second embodiment of the present invention. In FIG. 4, reference numeral 21 denotes an upper limit current value storage means capable of storing a plurality of air conditioner operating current upper limit values, 2
Reference numeral 2 is an operating current value detecting means for detecting an actual operating current value of the air conditioner, and 23 is a plurality of currents stored in the upper limit current value storing means according to the output of the heating part operation controlling means. Upper limit current value changing means for switching the upper limit value, 24
Is operating current value comparing means for comparing the operating current value detected by the operating current detecting means with the upper limit current value selected by the upper limit current value changing means.

The operation of the above arrangement will be described below. When the cooling operation is started in the air conditioner, the heating section operation control means 11 according to claim 1 controls the opening and closing of the heating section electric circuit. When the electric circuit of the heating unit is open, that is, during the regeneration / purification operation, the upper limit current value preset in the upper limit current value storage means 21 (for example, I1 = 13.2A) is the current value generated in the heating unit. In order to reduce the amount, the upper limit current value changing unit 23 switches to a plurality of current upper limit values (for example, I2 = 10.2A) stored in the upper limit current value storage unit 21. The operating current value in the air conditioner detected by the operating current value detecting means 22 is the upper limit current value (for example, I2 =) selected by the operating current value comparing means 24 by the upper limit current value changing means.
10.2A). As described above, since the upper limit current value during the regeneration purification operation is set by subtracting the current value generated in the heating unit, the operating current flowing through the indoor unit of the air conditioner is controlled by reducing it. It is possible to perform safe regeneration / 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 schematic block diagram of an air conditioner according to a third embodiment of the present invention. In FIG. 5, 31 is a compressor operating speed storage means capable of storing a plurality of operating speeds of the compressor in the indoor unit of the air conditioner, and 32 is an output of the heating part operation control means according to claim 1. It is a compressor operating speed changing means for switching a plurality of compressor operating speeds stored in the compressor operating speed storing means in accordance therewith.

The operation of the above arrangement will be described below. When the operation of the air conditioner is started, the heating part operation control means 11 according to claim 1 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 stores a plurality of compressor operating speeds stored in advance in the compressor operating speed storing means 31. The operating speed of the compressor is switched to (for example, N1 = 1600 rpm). 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 schematic block diagram of an air conditioner according to the fourth embodiment of the present invention. In FIG. 6, 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 a heating unit operation control means according to claim 1. It is 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 according to the output.

The operation of the above configuration will be described below. When the operation of the air conditioner is started, the heating part operation control means 11 according to claim 1 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 blowing motor operating speed changing unit 42 stores the blowing motor operating speed in the blowing motor operating speed storage unit 41 in advance. A plurality of blower electric motor operating speeds (for example, n1 =
800 rpm). As described above, during the regeneration / purification operation, it is possible to rapidly increase the thermal decomposition temperature (about 300 ° C.) required for the regeneration / purification operation by reducing the operating speed of the blower electric motor in the indoor unit. It is possible to finish the regeneration purification operation in a single hour.

Next, a fifth embodiment of the present invention will be described. FIG. 7 is a schematic block diagram of an air conditioner according to the fifth embodiment of the present invention. In FIG. 7, reference numeral 51 is a wind direction blade angle storage means capable of storing a plurality of blade angles of the wind direction blade angle control electric motor in the indoor unit of the air conditioner, and 52 is an output of the heating section operation control means according to claim 1. And a wind direction blade angle changing means for switching a plurality of wind direction blade angles stored in the wind direction blade angle storage means.

The operation of the above arrangement will be described below. When the operation of the air conditioner is started, the heating part operation control means 11 according to claim 1 controls the opening and closing of the heating part electric circuit. Then, when the electric circuit of the heating unit 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).
)). From the 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, it is possible to prevent the blown wind from directly hitting the user during the regeneration / purification operation, and perform the regeneration / purification operation without causing discomfort. It becomes possible to do.

[0027]

As is apparent from the above-described embodiments, the present invention can automatically carry out the regeneration / purification operation at regular time intervals, so that a regular new deodorizing device such as a conventional deodorizing device can be used. It becomes unnecessary to purchase and replace, and it is possible to semi-permanently 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 regeneration / purification operation is set by subtracting the current value generated in the heating section, the operating current flowing through the outdoor unit of the air conditioner is set. Will be controlled by reducing that amount, and safe regeneration and 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 the minimum rotation speed, so that the comfort of the cooling / heating operation is not impaired.

Further, according to the present invention, during the regeneration / purification operation, the operation speed of the blower motor in the indoor unit is reduced to reduce the thermal decomposition temperature (about 300) required for the regeneration / purification operation.
It is possible to rapidly raise the temperature to 0 ° C), and it is possible to end the regeneration and purification operation in a single hour.

Further, according to the present invention, by controlling the rotation angle of the wind direction control blade 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 causes discomfort. The regeneration and purification operation can be performed without giving.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of an air conditioner indoor unit according to an embodiment of the present invention.

FIG. 2 is a sectional view of an air conditioner indoor unit configuration according to an embodiment of the present invention.

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

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

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

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

FIG. 7 is a schematic block diagram 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 section 2 Deodorizing catalyst 3 Heating section 4 Suction section 5 Heat exchanger 6 Blower 7 Casing 8 Deodorizing device 11 Cumulative operation time measuring means from start of operation of blower motor 12 Means of storage of accumulated operation time from start of blower motor 13 Set cumulative time storage means 14 Operation cumulative time comparison means 15 Heating part operation control means 21 Upper limit current value storage means 22 Air conditioner operating current value detection means 23 Upper limit current value changing means 24 Air conditioner operating current value comparison means 31 Compressor Operating speed storage means 32 Compressor operating speed changing means 41 Blower electric motor operating speed storage means 42 Blower electric motor operating speed changing means 51 Wind direction blade angle storage means 52 Wind direction blade angle changing means

Claims (5)

[Claims] 1. A deodorizing portion in which a material such as a metal is coated with a deodorizing catalyst made of zeolite, alumina, silica, a noble metal, a rare earth oxide or the like, and a heating portion constituted by a heater or the like, which is in close contact with the deodorizing portion. In an air conditioner equipped with an adsorption type thermal decomposition catalyst type deodorizing device, a suction temperature measuring means for measuring the suction temperature of the air conditioner, and an upper limit value and a lower limit value of the suction temperature measured by the suction temperature measuring means. A suction temperature difference calculation means for calculating a difference and a suction temperature difference storage means for storing a predetermined constant suction temperature difference are provided, and a difference between an upper limit value and a lower limit value of the suction temperature calculated by the suction temperature calculation means. And a suction temperature difference comparison means for comparing the constant suction temperature difference determined by the suction temperature difference storage means, and the cumulative operating time of the blower motor in the indoor unit of the air conditioner A time measuring means for measuring, a time storing means for storing a predetermined fixed time, an electric motor cumulative operating time measured by the time measuring means, and a constant time set by the time storing means are compared. An operation control device for an air conditioner, comprising: a comparison means; and a heating section operation control means for performing opening / closing control of the heating section electric circuit in response to the determination result of the time comparison means. 2. The heating unit operation according to claim 1, further comprising: an upper limit current value storage means capable of storing a plurality of operation current upper limit values of the air conditioner; an operation current detection means for detecting an actual operation current value of the air conditioner; 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 control means, an operating current value detected by the operating current detection means, and the upper limit current value change The operation control device for an air conditioner according to claim 1, further comprising current value comparison means for comparing with an upper limit current value selected by the means. 3. A compressor operating speed storage means capable of storing a plurality of operating speeds of a compressor in an outdoor unit of an air conditioner, and an output of a heating part operation control means according to claim 1. The operation control device for an air conditioner according to claim 2, further comprising compressor operating speed changing means for switching a plurality of compressor operating speeds stored in the compressor operating 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 an output of a heating section operation control means according to claim 1. 4. 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 according to the above.
The operation control device for the air conditioner described. 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 an output of the heating section operation control means according to claim 1. 5. The operation control device for an air conditioner according to claim 4, further comprising wind direction blade angle changing means for switching a plurality of wind direction blade angles stored in the wind direction blade angle storage means.