JP2001182995A - Method and apparatus for displaying operational conditions of refrigerator/air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a refrigerator/air conditioner comprising a convenient controller (remote controller) delivering an operational command thereof provided with a method and an apparatus for displaying the operational conditions of apparatus constituting the refrigerator/air conditioner. SOLUTION: In a refrigerator/air conditioner comprising a heat source side heat exchanger and a utilizing side heat exchanger coupled by means of piping through a refrigerant compressor where freezing/refrigeration of a refrigerator and cooling/heating of a room are carried out by means of the utilizing side heat exchanger, a remote controller for controlling operation of the refrigerator/ air conditioner is provided with a display section for selectively displaying a normal operation mode or the operation mode of a selected apparatus in a refrigerator/air conditioner connected with the controller. Consequently, the user of the refrigerator/air conditioner can get the operational information of the apparatus in the refrigerator/air conditioner on the remote controller used every day.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for a simple control device such as a remote controller and a simple control device for a refrigeration / air-conditioning machine such as a supermarket showcase, a commercial refrigeration system, a gas engine heat pump, a package air conditioner, and the like. The present invention relates to a method for displaying an operation status and a device therefor.

[0002]

2. Description of the Related Art Large refrigeration and air-conditioning equipment is used as a showcase in a supermarket, a storage for freezing and refrigeration, and a cooling and heating air-conditioning equipment in a building or an office. Related devices such as compressors and pumps that circulate the refrigerant through the heat exchanger are connected to preset devices and pipes that connect them, and use-side heat exchangers for freezing and refrigeration in storage, and for cooling and heating rooms. I'm trying to do it. In addition, such a refrigerating air conditioner is controlled by using a centralized control device or a remote control device in order to be able to integrally control equipment that is dispersed also in a machine room or outdoors. Had become.

[0003]

However, in a conventional simple control device such as a remote controller of this kind, it is not possible to indicate whether a compressor or a pump is operating or stopped. There is no way for the user of the refrigeration / air-conditioning unit to check whether the refrigeration / air-conditioning is optimally performed according to the set refrigeration / air-conditioning conditions or whether the equipment has stopped due to a failure. The state was unknown.

Further, the compressor and the pump constituting the refrigeration air conditioner are stopped, and the refrigeration and air conditioning is stopped by the thermostat of valves and related equipment.
It is misunderstood that the necessary refrigeration and air conditioning is not being performed even if the refrigeration cycle is performing only the N / OFF operation or the refrigeration cycle is performing the defrosting operation. In some cases, forced operation of the air conditioner caused problems.

[0005] In particular, when this control is performed by a simple controller such as a remote controller, the number of operation keys for controlling the operation of the equipment is limited, and the screen for displaying the operation state is small. It is difficult to sufficiently show the user the control state of the device, and it is difficult to prevent the user from erroneously operating the control keys and driving the refrigerator with an excessive load.

The present invention solves the above-mentioned problems of the prior art. Therefore, even if the operation of the refrigerating air conditioner is not monitored by using a large-sized display device or a large-scale communication software, the conventional refrigerating machine can be used. A simple control device such as a remote controller provided in the air conditioner can check the operation status of the entire refrigeration air conditioner, the operation status of the individual components of the refrigeration air conditioner, An object of the present invention is to provide a refrigeration / air-conditioning apparatus capable of displaying an abnormality and a failure prediction alarm together.

[0007]

According to a first aspect of the present invention, there is provided a refrigeration air conditioner in which a heat source side heat exchanger and a use side heat exchanger are connected to each other via a refrigerant compressor or a pump. In a refrigeration air conditioner that performs freezing and refrigeration in a refrigerator and cooling and heating of a room by a heat exchanger, a control device that controls the operation of the refrigeration air conditioner includes a normal operation operation display mode and the control mode. It is characterized in that a mode for displaying the operation state of the selected device among the components of the refrigerating air conditioner connected to the device can be selectively displayed on the display unit.

In the refrigeration air conditioner according to the second aspect of the present invention, the heat source side heat exchanger and the use side heat exchanger are connected by piping via a refrigerant compressor or a pump. In a refrigerating and air-conditioning apparatus that performs freezing, refrigeration, and room heating and cooling, a control device that controls the operation of the refrigerating and air-conditioning device includes a normal operation operation display mode and a refrigerating device connected to the control device. A mode in which the operation state of the entire air conditioner device is displayed and a mode in which the operation state of the selected device among the devices constituting the refrigeration air conditioner is displayed on the display unit can be selectively displayed. It is characterized by.

According to a third aspect of the present invention, in the method for displaying the operation status of the refrigeration air conditioner according to the first or second aspect, the normal operation operation display mode and the refrigeration air conditioning connected to the control device are provided. It is characterized in that the method of switching the display between the mode for displaying the overall operation state of the machine and the mode is displayed on the screen for each mode.

Further, in the invention according to claim 4, the operation display device of the refrigerating air conditioner connects the heat source side heat exchanger and the use side heat exchanger with a pipe via a refrigerant compressor or a pump, and the use side heat exchanger. In the refrigerating and air-conditioning unit that performs freezing and refrigeration in the refrigerator and cooling and heating of the room, a control device that controls the operation of the refrigerating and air-conditioning device is connected to the normal operation operation display mode and the control device. A display unit capable of selectively displaying a mode for displaying the overall operation state of the refrigeration air conditioner device and a mode for displaying the operation state of a selected device among the devices constituting the refrigeration air conditioner. It is characterized by having.

The display device of the refrigerating air conditioner according to the present invention is further characterized in that the heat source side heat exchanger and the use side heat exchanger are connected by piping via a refrigerant compressor or a pump, and the use side heat exchanger is connected to the heat source side heat exchanger. In a refrigeration air conditioner that performs freezing and refrigeration in a refrigerator, and performs cooling and heating of a room, a control device that controls the operation of the refrigeration air conditioner is connected to a normal operation operation display mode and the control device. A mode for displaying the overall operation state of the refrigeration / air-conditioning equipment, and details of the operation state of the selected equipment and / or its related equipment among the refrigeration / air-conditioning equipment connected to the control device. It is characterized by having a display unit capable of selectively displaying a mode to be displayed.

Further, the invention of claim 6 is the invention of claim 4
Alternatively, in the refrigeration air conditioner display device according to claim 5, the display of the operation state of the selected device among the devices constituting the refrigeration air conditioner is an operation status analysis chart.

Further, the invention of claim 7 is the invention of claim 4
6. The display device for a refrigerating air conditioner according to claim 5, wherein in the mode for displaying an operation state of a selected device among the components of the refrigerating air conditioner connected to the control device, the device configuring the refrigerating air conditioner. It is characterized in that replacement of a battery and a failure prediction alarm are also displayed.

Further, the invention of claim 8 is the invention of claim 4
In the refrigeration / air-conditioner display device according to claim 5, when the equipment constituting the refrigeration / air-conditioner is replaced or is in a state of a failure prediction alarm, the display of the normal operation display mode is performed for a certain period of time. During this period, replacement of equipment and display of a failure prediction alarm are performed.

[0015] Further, the invention of claim 9 is the invention of claim 4
7. The display device for a refrigeration / air-conditioning device according to claim 6, wherein the display is switched between a normal operation operation display mode and a mode for displaying an overall operation state of the refrigeration / air-conditioning device connected to the control device. With the dedicated switch of the control device,
A mode for displaying the entire operation state of the equipment of the refrigeration air conditioner connected to the control device, and a mode for displaying the operation state of the selected equipment among the equipment constituting the refrigeration air conditioner, It is characterized in that it is shown on a display screen of the overall operation state of the refrigeration and air conditioner equipment.

Further, according to a tenth aspect of the present invention, in the refrigeration air conditioner display device according to any one of the fourth to eighth aspects, the normal operation display mode and the refrigeration air conditioner connected to the control device are provided. It is characterized in that a method of switching the display between the entire operation state of the device and the mode for displaying the operation state of the selected device is shown in the screen of each mode.

According to the first, second and fourth aspects of the present invention, the control device controls the normal operation operation display mode and the selected device among the refrigerating air conditioners connected to the control device. Since the mode for displaying the operation state can be selectively displayed on the display unit, the user of the refrigeration / air-conditioning apparatus can call and view the desired operation state of the equipment of the refrigeration / air-conditioning apparatus at any time on the display screen.

Further, claim 3, claim 9, and claim 10
According to the invention, a normal operation display mode, a mode for displaying the entire operation state of the refrigeration air conditioner connected to the control device, and a component device of the refrigeration air conditioner connected to the control device Can be switched at any time according to the switching method shown in the screen to display the operating state of the selected device in the operating state. The necessary information can be obtained by switching the operating state of the equipment of the refrigerating air conditioner as needed while viewing the display screen.

Further, according to the invention of claim 5, the control device comprises:
When the display unit selectively displays a normal operation operation display mode and a mode for displaying an operation state of a selected device among the components of the refrigeration and air conditioner connected to the control device, When a device in the refrigeration and air conditioner connected to the device is selected, the details of the operation state of the related device can be displayed together.

Further, according to the present invention, the operating condition analysis chart of the refrigeration air conditioner and / or the selected device is displayed as the operation state of the selected device among the devices constituting the refrigeration air conditioner. Can be.

Further, the invention of claim 7 and claim 8
According to the invention of the above, when the control device described above displays, replacement of the equipment constituting the refrigerating air conditioner and a failure prediction warning can be displayed together.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a circuit diagram of a refrigeration cycle showing an example of a refrigeration air conditioner to which the present invention is applied. In FIG. 1, reference numeral 1 denotes a refrigerant compressor 2, a four-way valve 3, an electromagnetic valve 4, a heat source side heat exchanger 5, a refrigerant regulator 6, an accumulator 7, an outdoor electric expansion valve 8, and the like connected by a refrigerant pipe 9. A mechanical unit installed outside a building or building for refrigeration and air conditioning, or in a machine room inside the building.

Reference numeral 10 denotes a user-side heat pipe connected to the mechanical unit 1 and used as a heat exchanger for cooling a showcase or a refrigerator in a supermarket, or as a heat exchanger for air conditioning and air conditioning in each room of a building or office. Exchanger 11, an electronic control valve 12 disposed between the use side heat exchanger 11 and the machine unit 1 to control a cooling temperature and a cooling capacity of each use side heat exchanger 11, and a blower (not shown) ) And the like.

The electronic control valve 12 includes a temperature sensor (not shown) provided in the use side heat exchanger 11, a temperature sensor disposed in each device and piping of the machine unit 1, a pressure sensor, a frost detection device, and the like. (Neither is shown), temperature data, pressure data, a defrost signal, and signals set by a control device such as a remote controller 17 (FIG. 2) arranged on each use side heat exchanger 11 side. In addition, refrigeration, refrigeration, cooling, heating, and other refrigeration and air conditioning are performed at a temperature required by the indoor unit 10 in accordance with a signal from the central control device 16 that controls the entire refrigeration / air-conditioning equipment.

FIG. 2 is a block diagram showing a configuration of an electric control device of the refrigerating air conditioner as shown in FIG.

In FIG. 2, reference numeral 13 denotes a power supply for supplying electric power to the compressor 22, the blower 3, the solenoid valve 4, the electric expansion valve 8 and the like of the mechanical unit 1, and 14 denotes the indoor unit 10.
And a power supply for supplying power to electric devices such as an electronic control valve 12 and other control devices (not shown).

The plurality of mechanical units 1 and the indoor unit 10 are connected by a refrigerant pipe 15 so as to constitute one system as a whole.
Thus, it is configured to exhibit the function as one refrigeration and air conditioning system.

On the other hand, a remote control device (hereinafter referred to as a remote controller) 17 for controlling each of the indoor units 10 disposed therein is connected to the room or the refrigeration unit in which the indoor units 10 are disposed. I have.

The central control device 16 is used to install a refrigeration and air-conditioning system constructed by connecting a plurality of mechanical units 1 and indoor units 10 with a refrigerant pipe 15, and to install the building or facility in which the refrigeration air conditioner is installed. In order to be able to control as the most suitable system under the environment according to the power situation, etc., make settings for efficient operation under the setting environment of the equipment and perform comprehensive control based on it Device.

The remote controller 17 is a device for starting and stopping the operation of each indoor unit 10, controlling freezing and refrigeration temperature, switching between cooling and heating air conditioning and temperature control, and adjusting the intensity of air blowing.
When the indoor units 10 have the same function, they are provided for each refrigeration unit or each room that performs refrigeration and air conditioning. When the functions of the indoor units 10 are different, they are provided for each indoor unit 10 that performs refrigeration and refrigeration. For each indoor unit 10 of
It can control the start and stop of operation, temperature control, and the intensity of air blowing.

The remote controller 17, the indoor unit 10, the machine unit 1, and the central control unit 16 are connected so as to transmit and receive signals through a signal line 18 or an infrared signal transmitting / receiving device.

FIG. 3 is a front view showing an example of a normal operation display of such a remote controller 17, and is externally constituted by an operation plate 19 and a display section 20.

The operation plate 19 has a unit selection button 21 for selecting the use-side heat exchanger 11 for adjusting the wind direction when the wind direction is adjusted when a plurality of use-side heat exchangers 11 of the indoor unit 10 are provided. Control buttons such as a swing / wind direction button 22 and a wind speed switching button 23 for changing the angle of the air conditioner, a cooling / heating or freezing and refrigeration operation switching button 24, and a set temperature, for example, a unit temperature increase of 1 degree or the like. The temperature setting buttons 25 and 26 for lowering, and the timer time buttons 27 and 28 for raising and lowering the unit setting time by, for example, 30 minutes, etc.
A timer set button 29 for starting the timer operation, a cancel button 30 for stopping the timer operation, and a start / stop button 31, a filter raising / lowering button 32 used when a filter or equipment needs to be serviced, And a reset button 33 for turning off the service lighting lamp.

The display unit 20 displays, for example, a control management display 34 indicating whether the control is centrally controlled, whether the control by the remote controller 17 is possible, or whether the control of the remote controller 17 is prohibited, as a normal driving operation display mode. When the indoor unit 10 has a plurality of use-side heat exchangers 11, a timer time display unit 35 for displaying the number of the use-side heat exchanger 11 currently selected at the time of wind direction adjustment, the position of a flap in the wind direction adjustment, A wind direction display 36 indicating a swing situation, a wind speed display 37 indicating an automatic wind speed or the strength of a wind speed, a timer time display section 38 indicating a timer time, a timer setting display 39 indicating that a timer is being set, a remote controller 17
Remote control sensor display 40 indicating that the temperature sensor is used, and the refrigeration / air-conditioner is frozen, refrigerated, air-conditioned, heated,
An operation display 41 or the like indicating which of the dry, cooling, and air blow operation states is in operation can be displayed.

FIG. 4 is a control block diagram showing an embodiment of a control device for performing such display. In the figure, reference numeral 43 denotes a data detection device for detecting a signal from a sensor (not shown) of a device constituting the refrigerating air conditioner. Reference numeral 44 denotes a data storage device that organizes signals for each device obtained by the data detection device and stores the signals over time. 45 performs arithmetic processing based on the data stored in the data storage device 44 in order to display the contents of control on the display device (display unit) 20 in accordance with a signal from the display switching device 46 such as a key operation of the remote controller 17. The display device 20 sends various contents, which will be described later, to the display device 20 according to these signals.

FIGS. 5 to 8 are display screens showing the display state of the display unit 20 of the remote controller according to the first embodiment of the present invention.

First, when the timer set button 29 of the remote controller is pressed for four seconds or more in the normal operation display mode of FIG. 3, the suction thermo temperature of the indoor unit 10 is reduced as shown in FIG.
Is displayed at the time display 38 of the timer of the remote controller 17 as shown in FIG. The suction thermo temperature is set to the indoor unit 1
0 is the difference between the set temperature of the installed room and the room temperature, and the display of −3: 5 in FIG.
5 ° C. lower. Conversely, if this display is 5.0, it indicates that the suction thermo temperature of the indoor unit 10 is 5 ° C. higher than the set temperature. Also, regarding the suction thermo temperature of the other indoor units 10,
Each time the unit selection button 21 of the remote control 17 is pressed,
The group indoor unit 10 changes, and the unit No. Are sequentially displayed at the display 35. If you want to stop this display,
Pressing the filter check button 48 returns to the operation display mode in FIG.

Next, when the timer cancel button 30 of the remote controller 17 is pressed for four seconds or more from the normal operation display mode of FIG. 3, the blowout thermo temperature of the indoor unit 10 is changed to the timer time display section of the remote controller 17 as shown in FIG. Shown at 38. The temperature of the blowout thermostat is determined by the indoor unit 10.
Temperature and indoor unit 1
The display of 2: 0 with the temperature of the conditioned air blown out from 0 indicates that the blowout temperature is 2 degrees Celsius higher than the set temperature. With respect to the other indoor units 10, each time the unit selection button 21 of the remote controller 17 is pressed, the group indoor unit 10 changes, and the unit number is sequentially indicated. If the user wants to stop the display, pressing the check button 48 returns to the driving operation display mode shown in FIG.

When the set button and the cancel button of the remote controller 17 are simultaneously pressed for 4 seconds or more from the normal operation display mode of FIG. 3, the suction thermo of the indoor unit 10 is turned on / off.
As shown in FIG. 7, the ON / OFF data of the OFF, blowout thermo is displayed on the timer time display section 38 of the remote controller 17. Numeral 2 indicates the full operation state where the save valve of the refrigeration circuit is turned off, numeral 1 indicates the state where the save valve is turned on and the capacity is controlled in a range from less than 100% to almost 0%, and the numeral 1 indicates the state. 0 indicates a state where the operation of the compressor 2 is stopped (OFF). The first digit of the timer display section 20 is the suction thermo of the room, the second digit is the suction thermo of the machine unit 1, the third digit is the thermostat of the room, and the fourth digit is the thermostat of the machine unit 1. It is shown according to the numbers. When the indoor unit 10 to be displayed is changed, each time the unit selection button 21 of the remote controller 17 is pressed, the group indoor unit 10 changes, and the unit number is sequentially displayed. If the user wants to stop the display, pressing the check button 48 returns to the driving operation display mode shown in FIG.

Further, regarding the currently operating control,
The timer time display section 3 of the remote controller 17 as shown in FIG.
It is shown at 8. That is, when the button 27 for raising the timer time of the remote controller 17 is pressed for four seconds or more from the normal operation display mode of FIG. 3, the operation state of the refrigeration / air-conditioning device is changed to the timer time display section 38 of the remote controller 17 as shown in FIG. Will be displayed. The number 0 in the minute display of the timer
The display of 0 indicates the normal control during the full operation of the compressor 2, and the display of the numeral 01 similarly indicates the save operation (discharge control) due to the discharge side temperature of the compressor 2 reaching a certain temperature.
In the same manner, the display of the numeral 02 indicates that the indoor unit 10 is judged to be a high-load operation, for example, when the temperature of the use-side heat exchanger 11 of the indoor unit 10 has reached a certain temperature or higher, and the compressor 2 is saved. Indicates that the load control is a high-load control to reduce the amount of refrigerant flowing to the indoor unit 10. Similarly, the display of the numeral 03 corresponds to the possibility that the temperature of the heat exchanger 11 of the indoor unit 10 drops below a certain temperature and freezes. The freeze control indicating that the operation is being performed indicates freeze control. Similarly, the display of the numeral 04 indicates that the temperature of the heat exchanger 11 of the machine unit 1 becomes higher than a certain temperature, thereby avoiding abnormalities such as performing a save operation of the compressor 2. The control of the heat source side heat exchanger is shown. Similarly, the display of the numeral 05 indicates the control of the defrosting operation for removing the frost attached to the heat source side heat exchanger 5 during the heating operation. In addition, if necessary, a new control is assigned to the following numbers.

When changing the indoor unit 10 to be displayed, as described above, the unit selection button 21
Each time is pressed, the group indoor unit 10 changes so as to sequentially indicate the number of the unit. When the user wants to stop the display, the user presses the check button 48, as shown in FIG.
Return to the operation display mode.

Further, when the button 28 for lowering the timer time of the remote controller 17 is pressed for four seconds or more from the normal operation display mode of FIG. 3, the display of the failure prediction function of the refrigeration air conditioner is displayed as shown in FIG. It is shown on the minute display of the unit 20. The display of the number 00 in the minute unit of the timer indicates that the compressor 2 is fully operated, and the display of the number 01 is the save operation (discharge control) when the discharge side temperature of the compressor 2 reaches a certain temperature. ), And the display of the numeral 02 indicates that the indoor unit is judged to be a high load operation such as a case where the temperature of the use side heat exchanger 11 of the indoor unit 10 has reached a certain temperature or higher, and the compressor 2 is saved while saving. This indicates that the control is a high-load control that reduces the amount of the refrigerant flowing through 10, and the display of the numeral 03 also corresponds to the possibility that the temperature of the heat exchanger of the indoor unit 10 falls below a certain temperature and freezes. The freeze control indicating that the operation is being performed indicates freeze control. Similarly, the display of the numeral 04 indicates that the temperature of the heat source side heat exchanger 5 of the machine unit 1 becomes higher than a certain temperature and the compressor 2 is saved to avoid an abnormality such as a save operation. Do It indicates that the external unit control status, and also represented a 05 numbers indicate the control of the defrosting operation for removing frost attached to the heat-source-side heat exchanger 5 during the heating operation. In addition, if necessary, a new control is assigned to the following numbers.

When changing the indoor unit 10 to be displayed, as described above, the unit selection button 21
Each time is pressed, the group indoor unit 10 changes so as to sequentially indicate the number of the unit. When the user wants to stop the display, the user presses the check button 48, as shown in FIG.
Return to the operation display mode.

Although not shown, the side portion 49 of each display shown in FIG. 3, FIG. 5 to FIG.
9 to the display of FIG. 9 and the button operation of switching from the display of FIGS. 5 to 9 to the display of FIG. 3 are simultaneously shown. The selection operation between the mode for displaying the operation state of the selected device and the normal operation operation display mode can be easily performed.

If the operation panel 19 of the remote controller is provided with a dedicated button for switching from the display shown in FIGS. 5 to 9 to the display shown in FIG. 3, a mode for displaying the operation state of the selected equipment in the refrigerating air conditioner is displayed. And the switching operation between the normal driving operation display mode and the normal driving operation display mode can be further simplified.

In this way, the various buttons on the remote controller 17 are provided with special functions, and by operating the buttons, the display is switched to the normal driving operation display mode and to the control device. And a mode for displaying the operation state of the selected device in the refrigeration / air-conditioning system, which can be selectively displayed by utilizing the display unit, and a failure prediction warning of the device as necessary. Can also be displayed.

FIGS. 10 to 14 are display screens showing the display state of the display unit 20 of the remote controller 17 according to the second embodiment of the present invention. The display unit 20 of the remote controller according to the second embodiment
In the remote controller 17 similar to the remote controller 17 of the first embodiment, the normal operation display mode is when the indoor unit 10 has a plurality of use-side heat exchangers as in FIG. Unit number display that displays the number of the currently selected heat exchanger unit when adjusting the wind direction of the
Wind direction display showing the position and swing status of the flap in wind direction adjustment, wind speed automatic, wind speed display showing the strength of wind speed, etc.,
Timer time display indicating timer time, timer time display indicating that timer is being set, remote control sensor display indicating use of temperature sensor of remote control, alarm display notifying this when filter or equipment service is required, Refrigeration, air conditioning, freezing, refrigeration, air conditioning, heating, dry,
Displays an operation display indicating whether the air conditioner is operating in cooling or ventilation, a temperature display indicating the set temperature using the remote control, an inspection lamp indicating operation of the protection device or an abnormality, and a test operation display indicating that a test operation is being performed. I can do it.

However, the display is not only a fixed character display, but also comprises a normal liquid crystal display device capable of changing the display of the display unit 20 into a free layout and display and a display control device therefor. The display at 20 is also the first
Unlike the embodiment, a free display is designed, and a normal operation display mode, a mode for displaying the entire operation state of the refrigeration air conditioner, The shift of the display to the mode for displaying the operation state of the device selected in the above can be selected by the switch 50 dedicated to the shift.

For example, when the display unit 20 of the remote controller 17 is constituted by a liquid crystal display unit 20 capable of arbitrarily displaying characters and figures, the display contents are the same as those in the normal operation display mode and the equipment of the refrigeration and air conditioner. And the mode for displaying the operation state of the selected device among the devices constituting the refrigeration air conditioner can be switched to the same screen 20 for display.

In this case, as a mode for displaying the overall operation state of the refrigeration / air-conditioning equipment, the entire equipment constituting the refrigeration / air-conditioning apparatus is appropriately displayed as shown on the display unit 20 in FIG. Switching from the display to the mode for displaying the operation state of the selected device in the refrigeration / air-conditioning unit is performed by the display unit 20.
If the operation can be performed in accordance with the switch 50 instructed below, even with a simple control device such as the remote controller 17, it is possible to very easily select and display the operation states related to the equipment constituting the refrigerating air conditioner.

FIG. 11 shows a case where the compressor 2 is selected as a device from the display of FIG. 10, and the operation states of the compressor 2 of each machine unit are high-speed operation, low-speed operation,
The status such as pause, stop, etc. is shown. In FIG. 11 as well, switching between the normal operation display mode, the mode for displaying the entire operation state of the refrigeration air conditioner, and the mode for displaying the operation state of the selected equipment in the refrigeration air conditioner is performed. Can be performed in accordance with a switch 50 instructed below the display unit 20, and if the switch 50 of a desired mode is pressed in accordance with the guide display, a transition from the screen of FIG. 11 to another mode is performed. It is possible.

FIG. 12 shows the case where the heat source side heat exchanger 5 is selected as the equipment from the display of FIG. 10, and for example, for each heat exchanger 5 of each machine unit 1, the state of its temperature is shown. . Also in FIG. 12, as in FIG. 11, a normal operation display mode, a mode for displaying the entire operation state of the refrigeration / air-conditioning apparatus, and an operation state of the selected apparatus in the refrigeration / air-conditioning apparatus Can be switched in accordance with a switch 50 instructed below the display unit 20. If the switch 50 of a desired mode is pressed according to the guide display, other screens are displayed from the screen of FIG. It is possible to shift to the mode.

FIG. 13 also shows a case where the blowers 14 of the machine-side unit 1 are selected as devices from the display of FIG. 10, and the operating states of the blowers 14 of each machine unit are high-speed operation and low-speed operation. The status such as operation, stop, stop, etc. is shown. In FIG. 13 as well, by operating the switch 50 with the guide display in exactly the same manner, the display of FIG. 13 shifts to the normal operation display mode and the mode for displaying the entire operation state of the refrigeration and air conditioning equipment. Is possible.

FIG. 14 shows a display unit 20 comprising a normal liquid crystal display device and its display control device.
For example, as an operation analysis chart as shown in the figure, the operation state of the equipment of the refrigerating air conditioner is shown over time. In FIG. 14, reference numeral 51 denotes a compressor; 52, a save valve (a valve that opens and closes to reduce the capacity by flowing refrigerant in the middle of compression in the compressor to the suction side); 53, a blower; 54, an electromagnetic valve; The temperature 56 on the discharge side of the machine indicates a change over time such as the temperature of the use side heat exchanger 11 of the indoor unit. Such a display can be used as data for identifying necessary maintenance and checking the cause of the abnormality based on a change in the operating state of the equipment constituting the refrigeration air conditioner during service of the refrigeration air conditioner. It is therefore possible to more effectively realize maintenance and inspection of equipment, service, replacement of equipment, and the like, which are one of the objects of the present invention.

Further, a touch panel display unit 20 is used as the display unit 20 of the second embodiment, and a normal operation operation display mode and a mode for displaying the entire operation state of the refrigeration / air-conditioning equipment are provided. If the button switch 50 of the transition of the display to the mode for displaying the operation state of the selected equipment in the refrigerating air conditioner can be selected by touching the display screen, the guidance of the button operation and the selection of the button can be provided. Even if it is not necessary, the user of the refrigerating air conditioner can very easily select all the display screens just by touching the device part desired to be displayed or the device name.

Although the above description has been made with reference to an example of a refrigeration air conditioner having two mechanical units and two indoor units, the present invention is not limited to such a refrigeration air conditioner, but may be applied to a gas heat pump or the like. There is a mechanical unit and an indoor unit, such as an absorption refrigerator, which can be applied to all refrigeration and air-conditioners that can control a part or the whole of the refrigeration and air-conditioning system with an indoor remote controller (simple control device). .

[0057]

According to the present invention, a mode for displaying the entire operation state of the refrigeration / air-conditioning apparatus and a selected device among the apparatuses constituting the refrigeration / air-conditioning apparatus are provided to a simplified control device such as a remote controller. Since the display of the mode indicating the operation state can be performed, the configuration of the same device as the conventional remote control device or the configuration in which the conventional remote control device is slightly changed is used by the user of the refrigeration and air conditioner on a daily basis. From the simple control device, almost all operation information of the equipment of the refrigeration and air conditioner can be individually obtained.

Further, according to the present invention, the operation state of the equipment is easily displayed by using a small display screen of a simple control device such as a remote controller, so that the user of the refrigeration / air-conditioning apparatus can use a particularly large screen or a large scale. The operation information of a desired refrigeration / air-conditioner device can be called and displayed on a display screen at any time without using the device.

The switching of the screen display mode on the display unit can be performed at any time in accordance with the method or switching instruction shown in the screen. Information required by the user can be obtained by appropriately selecting, switching, and narrowing down the operation state of the equipment of the refrigerating air conditioner.

Further, when displaying the operation status of the selected device among the devices constituting the refrigeration / air-conditioning device, and also displaying the details of the operation status of the related devices, the user of the refrigeration / air-conditioning device is required. , Even if you could n’t make a clear choice of equipment,
When a nearby device is selected, the operation status of the related device is also displayed, so that desired information can be obtained more easily by more appropriate narrowing down.

Further, the operation state of the selected equipment among the equipments constituting the refrigeration / air-conditioner is set as the refrigeration / air-conditioner and / or
Or, when displaying the operation status analysis chart of the selected device, when the user of the refrigerating air conditioner obtains the desired information or when the service of the refrigerating air conditioner is serviced, the information on the related devices over time can be easily known. Therefore, maintenance and inspection of the refrigeration / air-conditioning machine and response to a failure can be quickly performed.

Further, when the display in each of the modes is displayed together with the replacement of the equipment constituting the refrigerating air conditioner or the failure or the failure prediction warning, the display of the replacement of the equipment or the failure is simply displayed. On the other hand, the actual state of the operation of the displayed replacement equipment or equipment that may be related to the failure will be immediately displayed to the user. Without the load of
It will be possible to deal with it promptly.

[Brief description of the drawings]

FIG. 1 is a circuit configuration diagram of a refrigeration cycle showing an example of a refrigeration air conditioner to which the present invention is applied.

FIG. 2 is a block diagram illustrating an example of a configuration of an electrical control device of the refrigerating air conditioner.

FIG. 3 is a front view showing an example of a simple control device such as a remote controller.

FIG. 4 is a control block diagram showing an embodiment of control for performing display of a simple control device such as a remote controller.

FIG. 5 is a front view of a screen of a display unit showing the first embodiment of the present invention.

FIG. 6 is a front view of a screen of a display unit according to the first embodiment of the present invention.

FIG. 7 is a front view of a screen of a display unit according to the first embodiment of the present invention.

FIG. 8 is a front view of a screen of a display unit showing the first embodiment of the present invention.

FIG. 9 is a front view of a screen of a display unit showing the first embodiment of the present invention.

FIG. 10 is a front view of a screen of a display unit according to a second embodiment of the present invention.

FIG. 11 is a front view of a screen of a display unit according to a second embodiment of the present invention.

FIG. 12 is a front view of a screen of a display unit showing a second embodiment of the present invention.

FIG. 13 is a front view of a screen of a display unit according to a second embodiment of the present invention.

FIG. 14 is a front view of a screen of a display unit showing an example of a driving analysis chart in the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mechanical unit 2 Refrigerant compressor 3 Four-way valve 4 Solenoid valve 5 Heat source side heat exchanger 8 Outdoor electric expansion valve 9 Refrigerant piping 10 Indoor unit 11 User side heat exchanger 15 Refrigerant piping 16 Centralized control device 17 Remote control (simple control device) 18 signal line 19 operation panel 20 display 35 unit number display 38 timer time display 48 check button 50 changeover switch

Claims (10)

[Claims] 1. A heat source side heat exchanger and a use side heat exchanger are connected by piping via a refrigerant compressor or a pump, and the use side heat exchanger performs freezing and refrigeration in a refrigerator and cooling and heating of a room. In the refrigeration air conditioner, the control device for controlling the operation of the refrigeration air conditioner operates in the normal operation operation display mode and the operation of the selected device among the refrigeration air conditioners connected to the control device. A method for displaying an operation status of a refrigerating air conditioner, comprising a display unit capable of selectively displaying a mode for displaying a state. 2. A heat source side heat exchanger and a use side heat exchanger are connected by piping via a refrigerant compressor or a pump, and the use side heat exchanger performs freezing and refrigeration in a refrigerator and cooling and heating of a room. In the refrigeration air conditioner, the control device that controls the operation of the refrigeration air conditioner displays a normal operation operation display mode and the entire operation state of the refrigeration air conditioner device connected to the control device. Operating mode of the refrigeration air conditioner, characterized by having a display unit capable of selectively displaying a mode for performing operation and a mode for displaying an operation state of a selected device among the devices constituting the refrigeration air conditioner. Display method. 3. A method for switching between a normal operation operation display mode and a mode for displaying an overall operation state of equipment of a refrigerating air conditioner connected to the control device is shown on each mode screen. The method for displaying the operation status of a refrigeration air conditioner according to claim 1 or 2, wherein: 4. A heat source side heat exchanger and a use side heat exchanger are connected by piping via a refrigerant compressor or a pump, and the use side heat exchanger performs freezing and refrigeration in a refrigerator and cooling and heating of a room. In the refrigeration air conditioner, the control device that controls the operation of the refrigeration air conditioner displays a normal operation operation display mode and the entire operation state of the refrigeration air conditioner device connected to the control device. A display unit for selectively displaying a mode and a mode for displaying an operation state of a selected device among the devices constituting the refrigeration air conditioner, wherein the display unit displays the operation status of the refrigeration air conditioner. apparatus. 5. A heat source side heat exchanger and a use side heat exchanger are connected by piping via a refrigerant compressor or a pump, and the use side heat exchanger performs freezing and refrigeration in a refrigerator and cooling and heating of a room. In the refrigeration air conditioner, the control device that controls the operation of the refrigeration air conditioner displays a normal operation operation display mode and the entire operation state of the refrigeration air conditioner device connected to the control device. A display unit capable of selectively displaying a mode and a mode for displaying details of an operation state of a selected device and / or an associated device among constituent devices of the refrigerating air conditioner connected to the control device. A display device for displaying the operation status of a refrigerating air conditioner. 6. The operation status of the refrigeration / air-conditioning device according to claim 4, wherein the display of the operation status of the selected device among the devices constituting the refrigeration / air-conditioning device is an operation status analysis chart. Display device. 7. In a mode for displaying an operation state of a selected device among the components of the refrigeration air conditioner connected to the control device, replacement of a component of the refrigeration air conditioner and a failure prediction alarm are also performed. The display device according to claim 4 or 5, wherein the operation status of the refrigerating air conditioner is displayed. 8. When a device constituting a refrigeration air conditioner is replaced or is in a state of a failure prediction alarm, the replacement or failure of the device is performed for a certain period of time simultaneously with the display of a normal operation display mode. The display device according to claim 4 or 5, wherein a prediction alarm display is performed. 9. A dedicated switch of the control device switches the display between a normal operation operation display mode and a mode for displaying the entire operation state of the refrigeration and air conditioning equipment connected to the control device. Selecting means for selecting a mode for displaying the overall operation state of the refrigeration air conditioner device connected to the control device and a mode for displaying the operation state of the selected device among the devices constituting the refrigeration air conditioner. 7. The display device according to claim 4, wherein the operation status of the refrigeration air conditioner is displayed on a display screen of an entire operation state of the refrigeration air conditioner. 10. A method of switching a display between a normal operation operation display mode and a mode for displaying an overall operation state of a refrigeration and air conditioner device connected to the control device and an operation state of a selected device. 9. The display device for displaying the operation status of the refrigeration / air-conditioning apparatus according to claim 4, wherein each of the modes is displayed in the screen of each mode.