Control device, temperature adjustment system, temperature adjustment device control method, and storage medium

Abstract

An air conditioning apparatus, which is a temperature adjustment device, is provided with an intake temperature sensor disposed at an intake section of an indoor unit to detect a temperature of gas taken in, and an exhaust temperature sensor disposed at an exhaust section to detect a temperature of gas discharged. After a predetermined time has elapsed since the air conditioning apparatus started operating, when a detected temperature by the intake temperature sensor becomes a predetermined first target temperature or less, a first control signal is output to a control section of the indoor unit to cause the control section to stop operation of the compressor. Subsequently, when a detected temperature by the exhaust temperature sensor becomes a second target temperature or more, the output of the first control signal to the control section is stopped.

1 . A control device for controlling a temperature adjustment device including a compressor, a heat exchanger, an intake section, an exhaust section, a temperature sensor, and a control section, wherein the temperature adjustment device is configured to perform heat exchange on gas taken in from the intake section by the heat exchanger and to discharge the gas from the exhaust section, and the control section is configured to control operation of the compressor based on a signal supplied from the temperature sensor, 
       the control device comprising: 
 an intake temperature sensor configured to be disposed at the intake section to detect a temperature of gas taken in; 
 an exhaust temperature sensor configured to be disposed at the exhaust section to detect a temperature of gas discharged; 
 an operation detecting part configured to detect whether the temperature adjustment device is operating; and 
 a control signal output part configured to perform first control comprising: 
 outputting a first control signal to the control section so as to cause the control section to perform control for stopping or driving at low speed the compressor, when a detected temperature by the intake temperature sensor has become equal to or lower than a predetermined first target temperature after at least a predetermined time has elapsed since start of operation of the temperature adjustment device; and 
 thereafter stopping output of the first control signal to the control section when a detected temperature by the exhaust temperature sensor has become equal to or higher than a second target temperature determined based on the first target temperature. 
 
 
     
     
         2 . The control device according to  claim 1 , 
       further comprising a heat-exchanger temperature sensor configured to be disposed at the heat exchanger to detect a temperature of the heat exchanger, 
       wherein, in the first control, the control signal output part stores a detected temperature by the heat-exchanger temperature sensor when a detected temperature by the intake temperature sensor has become equal to or lower than the first target temperature after at least the predetermined time has elapsed since the start of operation of the temperature adjustment device; and 
       thereafter stops output of the first control signal to the control section when a detected temperature by the exhaust temperature sensor has become equal to or higher than the second target temperature after a detected temperature by the heat-exchanger temperature sensor has increased by a predetermined first threshold or more compared with the stored detected temperature. 
     
     
         3 . The control device according to  claim 1 , 
       wherein the control signal output part is configured to: 
 switch between a cooling mode and a heating mode according to whether a detected temperature by the exhaust temperature sensor at a time point when the predetermined time has elapsed since the start of operation of the temperature adjustment device is equal to or higher than a predetermined second threshold; 
 perform the first control in the cooling mode; and 
 in the heating mode, perform second control comprising: 
 outputting the first control signal to the control section, when a detected temperature by the intake temperature sensor has become equal to or higher than a predetermined third target temperature after at least the predetermined time has elapsed since the start of operation of the temperature adjustment device; and 
 thereafter stopping output of the first control signal to the control section when a detected temperature by the exhaust temperature sensor has become equal to or lower than a fourth target temperature determined based on the third target temperature. 
 
 
     
     
         4 . The control device according to  claim 2 , 
       wherein the control signal output part is configured to: 
 switch between a cooling mode and a heating mode according to whether a detected temperature by the exhaust temperature sensor at a time point when the predetermined time has elapsed since the start of operation of the temperature adjustment device is equal to or higher than a predetermined second threshold; 
 perform the first control in the cooling mode; and 
 in the heating mode, perform second control comprising: 
 outputting the first control signal to the control section and storing a detected temperature by the heat-exchanger temperature sensor, when a detected temperature by the intake temperature sensor has become equal to or higher than a predetermined third target temperature after at least the predetermined time has elapsed since the start of operation of the temperature adjustment device; and 
 thereafter stopping output of the first control signal to the control section when a detected temperature by the exhaust temperature sensor has become equal to or lower than a fourth target temperature determined based on the third target temperature after a detected temperature by the heat-exchanger temperature sensor has decreased by a predetermined second threshold or more compared with the stored detected temperature. 
 
 
     
     
         5 . The control device according to  claim 3 , 
       wherein operation in the heating mode is switchable between a normal heating mode and a ceiling-mounted heating mode in which the third target temperature is higher than that in the normal heating mode and the fourth target temperature is the same as that in the normal heating mode. 
     
     
         6 . The control device according to  claim 4 , 
       wherein operation in the heating mode is switchable between a normal heating mode and a ceiling-mounted heating mode in which the third target temperature is higher than that in the normal heating mode and the fourth target temperature is the same as that in the normal heating mode. 
     
     
         7 . The control device according to  claim 1 , 
       wherein the temperature adjustment device is configured to be driven by an AC power supply and comprises a power supply circuit configured to supply a DC power to a remote controller of the temperature adjustment device via a terminal, and 
       wherein the control device is driven by the DC power supply and comprises a connecting part configured to be electrically connected to the terminal of the temperature adjustment device. 
     
     
         8 . A temperature adjustment system comprising: the control device according to  claim 1 ; and the temperature adjustment device, 
       wherein the temperature adjustment device is configured to be driven by an AC power supply and comprises a power supply circuit configured to supply a DC power to a remote controller of the temperature adjustment device via a terminal, and 
       wherein the control device is driven by the DC power supply and is supplied with power from the terminal of the temperature adjustment device. 
     
     
         9 . The control device according to  claim 1 , 
       wherein the control signal output part is configured to output, when stopping output of the first control signal to the control section, a second control signal to the control section so as to cause the control section to perform control for operating the compressor at a rated operation. 
     
     
         10 . The control device according to  claim 9 , 
       wherein the control signal output part is configured to stop output of the second control signal to the control section during a period after the second control signal has been output to the control section and before the first control signal is next output to the control section. 
     
     
         11 . A temperature adjustment device control method for controlling a temperature adjustment device including a compressor, a heat exchanger, an intake section, an exhaust section, a temperature sensor, and a control section, wherein the temperature adjustment device is configured to perform heat exchange on gas taken in from the intake section by the heat exchanger and to discharge the gas from the exhaust section, and the control section is configured to control operation of the compressor based on a signal supplied from the temperature sensor, 
       the method comprising performing first control 
       based on detection results obtained by: an intake temperature sensor disposed at the intake section and configured to detect a temperature of gas taken in; an exhaust temperature sensor disposed at the exhaust section and configured to detect a temperature of gas discharged; and an operation detecting part configured to detect whether the temperature adjustment device is operating, 
       the first control comprising: 
 outputting a first control signal to the control section so as to cause the control section to perform control for stopping or driving at low speed the compressor, when a detected temperature by the intake temperature sensor has become equal to or lower than a predetermined first target temperature after at least a predetermined time has elapsed since start of operation of the temperature adjustment device; and 
 thereafter stopping output of the first control signal to the control section when a detected temperature by the exhaust temperature sensor has become equal to or higher than a second target temperature determined based on the first target temperature. 
 
     
     
         12 . The temperature adjustment device control method according to  claim 11 , 
       wherein in the first control, when stopping output of the first control signal to the control section, a second control signal is outputted to the control section so as to cause the control section to perform control for operating the compressor at a rated operation. 
     
     
         13 . A non-transitory machine-readable storage medium containing program instructions executable by a computer, and when executed, causing one computer or a plurality of computers in cooperation to control a temperature adjustment device including a compressor, a heat exchanger, an intake section, an exhaust section, a temperature sensor, and a control section, wherein the temperature adjustment device is configured to perform heat exchange on gas taken in from the intake section by the heat exchanger and to discharge the gas from the exhaust section, and the control section is configured to control operation of the compressor based on a signal supplied from the temperature sensor, 
       the control of the temperature adjustment device comprising performing first control 
       based on detection results obtained by: an intake temperature sensor disposed at the intake section and configured to detect a temperature of gas taken in; an exhaust temperature sensor disposed at the exhaust section and configured to detect a temperature of gas discharged; and an operation detecting part configured to detect whether the temperature adjustment device is operating, 
       the first control comprising: 
 outputting a first control signal to the control section so as to cause the control section to perform control for stopping or driving at low speed the compressor, when a detected temperature by the intake temperature sensor has become equal to or lower than a predetermined first target temperature after at least a predetermined time has elapsed since start of operation of the temperature adjustment device; and 
 thereafter stopping output of the first control signal to the control section when a detected temperature by the exhaust temperature sensor has become equal to or higher than a second target temperature determined based on the first target temperature. 
 
     
     
         14 . The non-transitory machine-readable storage medium according to  claim 13 , 
       wherein in the first control, when stopping output of the first control signal to the control section, a second control signal is outputted to the control section so as to cause the control section to perform control for operating the compressor at a rated operation.