JP2012083039A - Remote controller and air conditioner equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inhibit unintentional changes in an operation mode by a user.SOLUTION: A remote controller is provided, comprising: a main operation mode switching button 44a for switching main operation modes including a cooling operation mode and a heating operation mode; and an auxiliary operation mode switching button 43c for switching auxiliary operation modes that can be set when the heating operation mode is selected as a main operation mode. The main operation mode switching button 44a is provided in an area to be covered with a lid member 49 provided on a body part 41 in an openable and closable manner when the lid member 49 is in a closed state. The auxiliary operation mode switching button 43c is provided in an area not to be covered with the lid member 49 when the lid member 49 is in the closed state.

Description

  The present invention relates to a remote controller that switches between an operation mode of a cooling operation and a heating operation, and an air conditioner including the remote controller.

  As an indoor unit of an air conditioner, an indoor unit having a heat exchanger and a radiation panel each having a part of piping constituting a refrigerant circuit, and an indoor fan disposed in the vicinity of the heat exchanger is known ( For example, Patent Document 1). A cooling / warming changeover switch and a heating mode changeover switch are provided in the operation unit of the indoor unit. The heating mode selector switch can be set to a fan / panel mode that performs both hot air heating and radiant heating, an automatic mode that automatically switches between hot air heating and radiant heating, and a panel mode that performs radiant heating. . Here, when the heating mode is set by the cool / warm changeover switch and the fan / panel mode is set by the heating mode changeover switch, the indoor fan rotates and the hot air heating and the radiant heating are performed simultaneously. On the other hand, when the heating mode is set with the cool / warm changeover switch and the panel mode is set with the heating mode changeover switch, the hot air is not blown out because the indoor fan is in the operation-off state. Only radiation from the radiation panel is performed.

Japanese Unexamined Patent Publication No. Sho 63-113239

  In the indoor unit described above, both the cold / warm changeover switch and the heating mode changeover switch are always operable. Therefore, for example, when the user hits the cold / warm changeover switch or the heating mode changeover switch, the operation mode may be changed although the user does not intend.

  Then, the objective of this invention is providing the remote control which can suppress that an operation mode is changed without a user's intention, and an air conditioner provided with the same.

  A remote controller according to a first aspect of the present invention is an air conditioner remote controller capable of cooling operation and heating operation, comprising a lid member that is openable and closable with respect to the main body, and is provided with a cooling operation mode in which the cooling operation is performed. A main operation mode switching button for switching a main operation mode including a heating operation mode for performing a heating operation, and an auxiliary operation mode switching button for switching an auxiliary operation mode that can be set when a predetermined main operation mode is selected, The main operation mode switching button is provided in a portion covered by the lid member when the lid member is in a closed state, and the auxiliary operation mode switching button is provided when the lid member is in a closed state. It is provided in the part which is not covered by.

  In this remote control, the main operation mode switching button is provided in a portion covered by the closed lid member, so that the user can switch the main operation mode including the cooling operation mode and the heating operation mode by switching the lid member. I need to open it. Therefore, the main operation mode switching button is hardly operated in a state where the user does not intend to switch the main operation mode. Therefore, it is possible to prevent the operation mode from being changed without the intention of the user. Further, although the usage frequency of the auxiliary operation mode switching button is considered to be higher than the usage frequency of the main operation mode switching button, the auxiliary operation mode switching button is provided in a portion that is not covered by the closed lid member. So convenience is improved.

  In the remote control according to the second invention, in the remote control according to the first invention, the air conditioner has a heat exchanger and a radiation panel each having a part of a pipe constituting a refrigerant circuit, and the vicinity of the heat exchanger. And the predetermined main operation mode is a heating operation mode in which a refrigerant is passed through the heat exchanger to perform warm air heating, and the auxiliary operation mode is provided in the heat exchanger. This is a radiant heating operation mode in which warm air is heated by flowing a refrigerant and radiant heating is performed by flowing a refrigerant through the radiant panel.

  In this remote control, when the heating operation mode is selected as the main operation mode, the radiant heating is easily performed by operating the auxiliary operation mode switching button provided in the portion not covered by the closed lid member. Operation mode can be set.

  In the remote control according to the third aspect of the invention, in the remote control according to the second aspect of the invention, the radiant heating operation mode is performed by heating the heat exchanger with the refrigerant to perform hot air heating and flowing the refrigerant to the radiant panel to perform the radiant heating. And a first radiant heating operation mode in which a radiant heating operation in which the air volume generated by the fan is maintained at a predetermined value or more is performed, hot air heating is performed by using a refrigerant in the heat exchanger, and the radiant panel is A second radiant heating operation mode in which a radiant heating operation is performed in which radiant heating is performed by flowing a refrigerant and an air volume generated by the fan is maintained below the predetermined value, and the radiant heating operation and the radiant slight air heating operation. And at least one of the third radiant heating operation modes in which switching is automatically performed.

  In this remote control, by operating an auxiliary operation mode switching button, a first radiant heating operation mode in which radiant heating operation is performed with emphasis on heating capability and a radiant light wind heating operation in which emphasis is placed on prevention of draft feeling are performed. It is possible to switch to at least one of a radiant heating operation mode and a third radiant heating operation mode in which the radiant heating operation and the radiant breeze heating operation are automatically switched.

  A remote control according to a fourth aspect of the present invention is the remote control according to any one of the first to third aspects, comprising a display unit capable of displaying different displays corresponding to a plurality of modes, and heating by the main operation mode switching button. Only after the display corresponding to the operation mode is displayed on the display section, the display corresponding to the mode switchable by the auxiliary operation mode switching button cannot be displayed on the display section.

  With this remote controller, the user can confirm that the display corresponding to the heating operation mode is displayed on the display unit, and can set the auxiliary operation mode by operating the auxiliary operation mode switching button.

  An air conditioner according to a fifth aspect includes the remote control according to any one of the first to fourth aspects.

  As described above, according to the present invention, the following effects can be obtained.

  In the first aspect of the invention, since the main operation mode switching button is provided in the portion covered by the closed lid member, the user can switch the main operation mode including the cooling operation mode and the heating operation mode by using the lid. The member needs to be opened. Therefore, the main operation mode switching button is hardly operated in a state where the user does not intend to switch the main operation mode. Therefore, it is possible to prevent the operation mode from being changed without the intention of the user. Further, although the usage frequency of the auxiliary operation mode switching button is considered to be higher than the usage frequency of the main operation mode switching button, the auxiliary operation mode switching button is provided in a portion that is not covered by the closed lid member. So convenience is improved.

  In the second invention, when the heating operation mode is selected as the main operation mode, it is easy to operate the auxiliary operation mode switching button provided in the portion not covered with the closed lid member. Radiant heating operation mode can be set.

  In the third invention, by operating the auxiliary operation mode switching button, the first radiant heating operation mode in which the radiant heating operation in which the heating capacity is emphasized and the radiant light wind heating operation in which the prevention of the draft feeling is emphasized are performed. It is possible to switch to at least one of the second radiant heating operation mode and the third radiant heating operation mode in which the radiant heating operation and the radiant breeze heating operation are automatically switched.

  In the fourth invention, it is possible to set the auxiliary operation mode by confirming that the display corresponding to the heating operation mode is displayed on the display unit and operating the auxiliary operation mode switching button.

It is a circuit diagram showing the schematic structure of the air conditioner concerning the embodiment of the present invention, and is a figure showing the flow of the refrigerant at the time of cooling operation and hot air heating operation. It is a circuit diagram which shows schematic structure of the air conditioner which concerns on embodiment of this invention, Comprising: It is a figure which shows the flow of the refrigerant | coolant at the time of a radiation heating operation and a radiation breeze heating operation. It is a figure which shows the remote control with which the air conditioner shown in FIG.1, 2 is shown, (a) shows the state in which the cover member was closed, (b) shows the state in which the cover member was opened, respectively. It is a figure which shows the relationship between operation of the remote control shown in FIG. 3, and mode transition. It is a flowchart which shows the procedure of the mode switching process performed in the control part of a remote control. It is a block diagram which shows schematic structure of the control part which controls an air conditioner.

  Hereinafter, an embodiment of an air conditioner 1 according to the present invention will be described.

<Overall configuration of the air conditioner 1>
As shown in FIG.1 and FIG.2, the air conditioner 1 of this embodiment is provided with the indoor unit 2 installed indoors, the outdoor unit 3 installed outdoor, and the remote control 4 (refer FIG. 3). ing. The indoor unit 2 includes an indoor heat exchanger 20, an indoor fan 21 disposed in the vicinity of the indoor heat exchanger 20, a radiation panel 22, an indoor electric valve 23, and an indoor temperature sensor for detecting the indoor air temperature. 24. The outdoor unit 3 includes a compressor 30, a four-way switching valve 31, an outdoor heat exchanger 32, an outdoor fan 33 disposed in the vicinity of the outdoor heat exchanger 32, and an outdoor electric valve 34. Yes.

  In the air conditioner 1, the indoor heat exchanger 20, the compressor 30, the four-way switching valve 31, the outdoor heat exchanger 32, and the outdoor electric valve 34 are connected to form an annular refrigerant circuit 10. In the refrigerant circuit 10, the pipes on both sides of the indoor heat exchanger 20 are connected by the bypass pipe 11. The bypass pipe 11 is provided with a radiation panel 22 and an indoor motor operated valve 23. A panel entry temperature sensor 25 and a panel exit temperature sensor 26 are attached to both sides of the radiation panel 22 in the bypass pipe 11. Further, an accumulator 35 is interposed between the suction side of the compressor 30 and the four-way switching valve 31 in the refrigerant circuit 10, and the discharge side of the compressor 30 and the four-way switching valve 31 in the refrigerant circuit 10 are interposed. A discharge temperature sensor 36 is attached between them. An outdoor heat exchanger temperature sensor 28 is attached to the outdoor heat exchanger 32.

  The indoor heat exchanger 20 has a pipe that constitutes a part of the refrigerant circuit 10, and an indoor heat exchanger temperature sensor 27 is attached thereto. The indoor heat exchanger 20 is disposed on the windward side of the indoor fan 21. The air heated or cooled by heat exchange with the indoor heat exchanger 20 is blown into the room as warm air or cold air by the indoor fan 21, whereby hot air heating or cooling is performed.

  The radiation panel 22 is disposed on the surface side of the indoor unit 2 and has a pipe that constitutes a part of the refrigerant circuit 10. Radiant heating is performed by radiating the heat of the refrigerant flowing through the pipe into the room. The indoor motor operated valve 23 is provided to adjust the flow rate of the refrigerant supplied to the radiation panel 22.

  The air conditioner 1 of the present embodiment can perform a dehumidifying operation, a cooling operation, a hot air heating operation, a radiant heating operation, a radiant light wind heating operation, and a blower operation. The dehumidifying operation and the cooling operation are operations for performing dehumidification and cooling by flowing the refrigerant through the indoor heat exchanger 20 without flowing the refrigerant through the radiation panel 22, respectively. In the hot air heating operation, the refrigerant is flowed through the radiation panel 22. In this operation, the refrigerant is passed through the indoor heat exchanger 20 to perform hot air heating. The radiant heating operation is an operation in which the refrigerant is passed through the indoor heat exchanger 20 to perform hot air heating, and the refrigerant is passed through the radiant panel 22 to perform radiant heating. The radiant light breeze heating operation is an operation in which the warm air heating is performed with a lower air volume than in the warm air heating operation and the radiant heating operation, and the refrigerant is passed through the radiant panel 22 to perform the radiant heating. The air blowing operation is an operation in which only the indoor fan 21 is operated and air is blown in a state where the flow of the refrigerant in the refrigerant circuit 10 is stopped.

The flow of the refrigerant in the refrigerant circuit 10 during each operation will be described with reference to FIGS. 1 and 2.
During the cooling / dehumidifying operation, the indoor motor-operated valve 23 is closed and the four-way switching valve 31 is switched to the state shown by the broken line in FIG. Therefore, as indicated by the dashed arrows in FIG. 1, the high-temperature and high-pressure refrigerant discharged from the compressor 30 flows into the outdoor heat exchanger 32 through the four-way switching valve 31. The refrigerant condensed in the outdoor heat exchanger 32 is decompressed by the outdoor motor operated valve 34 and then flows into the indoor heat exchanger 20. The refrigerant evaporated in the indoor heat exchanger 20 flows into the compressor 30 through the four-way switching valve 31 and the accumulator 35.

  During the hot air heating operation, the indoor motor operated valve 23 is closed and the four-way switching valve 31 is switched to the state shown by the solid line in FIG. Therefore, as indicated by the solid arrow in FIG. 1, the high-temperature and high-pressure refrigerant discharged from the compressor 30 flows into the indoor heat exchanger 20 through the four-way switching valve 31. The refrigerant condensed in the indoor heat exchanger 20 is decompressed by the outdoor motor operated valve 34 and then flows into the outdoor heat exchanger 32. Then, the refrigerant evaporated in the outdoor heat exchanger 32 flows into the compressor 30 via the four-way switching valve 31 and the accumulator 35.

  During the radiant heating operation and the radiant breeze heating operation, the indoor motor-operated valve 23 is opened, and the four-way switching valve 31 is switched to the state indicated by the solid line in FIG. Therefore, as indicated by the solid arrows in FIG. 2, the high-temperature and high-pressure refrigerant discharged from the compressor 30 flows into the indoor heat exchanger 20 and the radiation panel 22 through the four-way switching valve 31. Then, the refrigerant condensed in the indoor heat exchanger 20 and the radiation panel 22 is decompressed by the outdoor motor operated valve 34 and then flows into the outdoor heat exchanger 32. Then, the refrigerant evaporated in the outdoor heat exchanger 32 flows into the compressor 30 via the four-way switching valve 31 and the accumulator 35.

<Remote control 4>
In the remote controller 4, the user performs operation start / stop operation, operation mode setting, indoor temperature target temperature setting (indoor set temperature), blowing air volume setting, and the like. Then, the remote controller 4 transmits a control signal to the indoor unit 2 based on operations and settings performed by the user. As shown in Table 1, in the air conditioner 1 of this embodiment, any one of an automatic operation mode, a dehumidifying operation mode, a cooling operation mode, a heating operation mode, and a blower operation mode is performed as a main operation mode by operating the remote controller 4. Can be selected.

  When the heating operation mode is selected as the main operation mode, as shown in Table 1, any one of the warm air heating operation mode and the radiation 1 operation mode and the radiation 2 operation mode included in the radiant heating operation mode is performed. You can choose. The radiation 1 operation mode and the radiation 2 operation mode are provided as auxiliary operation modes in the heating operation mode.

  As shown in Table 1, the automatic operation mode is a mode for switching between the cooling operation and the heating operation in accordance with the indoor temperature. The dehumidifying operation mode is a mode for performing a dehumidifying operation, and the cooling operation mode is a mode for performing a cooling operation. The warm air heating operation mode is a mode for performing the warm air heating operation, and the radiation 1 operation mode is a mode for switching between the radiant heating operation and the radiant light wind heating operation according to the room temperature (third radiant heating operation). Mode), the radiation 2 operation mode is a mode for performing the radiation breeze heating operation (second radiation heating operation mode). The air blowing operation mode is a mode for performing the air blowing operation. When automatic operation mode, dehumidification operation mode, cooling operation mode, hot air heating operation mode or air blowing operation mode is selected, select “automatic airflow”, “strong”, or “weak” as the airflow setting. it can. In the present embodiment, the air volume is automatically controlled when the radiation 1 operation mode or the radiation 2 operation mode is selected.

Next, the configuration of the remote controller 4 will be described with reference to FIG.
As shown in FIG. 3, the remote controller 4 has a substantially rectangular shape in plan view. In the following description, the longitudinal direction in plan view is referred to as “vertical direction”.

  The remote controller 4 includes a main body 41 and a lid member 49 that can be opened and closed with respect to the main body 41. More specifically, the lid member 49 is held so as to be slidable in the vertical direction with respect to the main body portion 41. As shown in FIG. 3A, the lid member 49 in the closed state covers the lower half of the main body 41. Then, by sliding the lid member 49 in the closed state downward, the lid member 49 is opened as shown in FIG. At this time, the portion covered by the closed lid member 49 in the main body 41 is exposed. A control unit (not shown) is accommodated in the main body 41.

  The main body 41 includes a main operation unit 43 provided above a portion covered with the closed lid member 49, an auxiliary operation unit 44 that can be operated by opening the lid member 49, and a main operation unit. 43 and has a display unit 45 for displaying a set temperature, an operation mode, and the like.

  As shown in FIG. 3A, the main operation unit 43 is provided in a portion that is not covered by the lid member 49 when the lid member 49 is in the closed state, and an operation button 43a that starts / stops operation. And a set temperature switching button 43b for switching the set temperature and an auxiliary operation mode switching button 43c. The auxiliary operation mode switching button 43c is for switching the auxiliary operation mode when the heating operation mode is selected as the main operation mode. Here, as described above, the auxiliary operation mode includes the radiation 1 operation mode and the radiation 2 operation mode.

  On the other hand, as shown in FIG. 3B, the auxiliary operation unit 44 is provided in a portion covered by the lid member 49 when the lid member 49 is in the closed state, and switches the main operation mode to switch the main operation mode. Button 44a is included. As described above, the main operation mode includes an automatic operation mode, a dehumidifying operation mode, a cooling operation mode, a heating operation mode, and a blower operation mode.

  As shown in FIG. 4, the main operation mode is switched in order of the automatic operation mode, the dehumidifying operation mode, the cooling operation mode, the heating operation mode, the air blowing operation mode, and the automatic operation mode each time the main operation mode switching button 44a is pressed. Change. If the main operation mode switching button 44a is pressed while the cooling operation mode is selected, the main operation mode is switched to the heating operation mode. At this time, the radiation 1 operation mode or the radiation 2 operation mode is selected. Instead, the hot air heating operation mode is selected.

  Therefore, selection of the radiation 1 operation mode or the radiation 2 operation mode by operating the auxiliary operation mode switching button 43c is performed by operating the main operation mode switching button 44a to switch the main operation mode to the heating operation mode. It can be performed only after the heating operation mode is selected. That is, every time the auxiliary operation mode switching button 43c is pressed after the hot air heating operation mode is selected, as shown in FIG. 4, the radiation 1 operation mode, the radiation 2 operation mode, the hot air heating operation mode, and the radiation 1 are performed. The operation mode is switched in the order. If the heating operation mode is selected, the main operation mode switching button 44a is pressed regardless of which of the hot air heating operation mode, the radiation 1 operation mode, and the radiation 2 operation mode is selected. Then, the main operation mode is switched to the air blowing operation mode.

  The display unit 45 includes a set temperature display area 45a in which the set temperature is displayed and an operation mode display area 45b in which displays corresponding to the plurality of operation modes are displayed. The content displayed in the operation mode display area 45b is that the auxiliary operation mode is switched when the main operation mode is switched by operating the main operation mode switching button 44a and when the auxiliary operation mode switching button 43c is operated. In this case, as shown in FIG. 4, the display switches to the display corresponding to the switched operation mode. In FIG. 3, a display corresponding to the radiation 1 operation mode is displayed in the operation mode display area 45b.

  The control unit provided in the remote controller 4 is displayed when each button included in the main operation unit 43 or the auxiliary operation unit 44 is operated and a setting change such as an operation start / stop instruction or an operation mode is performed. The display to the unit 45 and the transmission of the control signal to the indoor unit 2 are performed.

  Here, an example of the procedure of the mode switching process performed by the control unit of the remote controller 4 will be described with reference to FIG.

  First, it is determined whether or not the auxiliary operation mode switching button 43c has been operated (step S1). When it is determined that the auxiliary operation mode switching button 43c has been operated (step S1: YES), it is determined whether or not the heating operation mode is selected as the main operation mode (step S2). If it is determined that the heating operation mode is selected (step S2: YES), the mode is switched to the auxiliary operation mode (step S3). After step S3, the process returns to step S1 again, and the determination of whether or not the auxiliary operation mode switching button 43c is operated is repeated. Then, every time the auxiliary operation mode switching button 43c is operated, the operation mode is switched in turn between the warm air heating operation mode, the radiation 1 operation mode, and the radiation 2 operation mode. At this time, a display corresponding to the switched operation mode is displayed in the operation mode display area 45b of the display unit 45. Further, when it is determined that the auxiliary operation mode switching button 43c is not operated (step S1: NO) and when it is determined that the heating operation mode is not selected (step S2: NO), step S4 described later is performed. Proceed to

  Next, it is determined whether or not the main operation mode switching button 44a has been operated (step S4). When it is determined that the main operation mode switching button 44a has been operated (step S4: YES), the main operation mode is switched (step S5). Specifically, for example, when it is determined that the main operation mode switching button 44a is operated while the dehumidifying operation mode is selected, the main operation mode is switched to the cooling operation mode. Further, when it is determined that the main operation mode switching button 44a is operated in the state where the cooling operation mode is selected, the main operation mode is switched to the heating operation mode. At this time, a display corresponding to the switched operation mode is displayed in the operation mode display area 45b of the display unit 45. After step S5, the process returns to step S1 again, and the determination of whether or not the auxiliary operation mode switching button 43c is operated is repeated. On the other hand, when it is determined that the main operation mode switching button 44a is not operated (step S4: NO), the process of step S5 described above is omitted.

  The operation mode switching process described above can be performed while the operation is being performed, or can be performed before the operation is started. When the operation mode is changed while the operation is being performed and the operation mode is changed, the operation mode is changed to the changed operation mode during the operation. On the other hand, when the operation mode switching process is performed before the operation is started, when the operation button 43a is operated thereafter, the operation is started in the changed operation mode.

<Control unit 5>
Next, the control part 5 which controls the air conditioner 1 is demonstrated, referring FIG.
As shown in FIG. 6, the control unit 5 includes a storage unit 50, an operation mode control unit 51, an indoor motorized valve control unit 52, an indoor fan control unit 53, a compressor control unit 54, and an outdoor motorized valve control. Part 55. In the following description, only the control related to the cooling operation, the warm air heating operation, the radiant heating operation, and the radiant light wind heating operation in the cooling operation mode and the heating operation mode will be described, and the automatic operation mode, the dehumidifying operation mode, and A description of the air blowing operation mode is omitted.

(Storage unit 50)
The storage unit 50 stores various operation settings related to the air conditioner 1, control programs, data tables necessary for executing the control programs, and the like. The operation settings include those set by operating the remote controller 4 by the user, such as a target temperature of the room temperature (room set temperature), and those set in advance for the air conditioner 1. . In the air conditioner 1 of this embodiment, the target temperature range of the radiation panel 22 is set in advance to a predetermined temperature range (for example, 50 to 55 ° C.). Note that the target temperature range of the radiation panel 22 may be set by operating the remote controller 4. Further, the storage unit 50 stores the upper limit temperature of the heat exchange temperature in the indoor heat exchanger 20 corresponding to the upper limit pressure in the refrigerant circuit.

(Operation mode control unit 51)
The operation mode control unit 51 starts the cooling operation, the heating operation, or the radiant light wind heating operation when the operation of starting the cooling operation mode, the warm air heating operation mode, or the radiation 2 operation mode is performed by the remote controller 4. .
In addition, when the operation of starting the radiation 1 operation mode is performed by the remote controller 4, the operation mode control unit 51 starts the radiant heating operation when the indoor temperature detected by the indoor temperature sensor 24 is lower than the indoor set temperature. In addition, when the room temperature is equal to or higher than the indoor set temperature, the radiant light wind heating operation is started.
In the air conditioner 1 of the present embodiment, when the operation is started by operating the remote controller 4, the heating operation is not started when the room temperature is higher than the indoor set temperature by a predetermined temperature Tb or more.

Further, the operation mode control unit 51 radiates from the radiant heating operation when the room temperature detected by the room temperature sensor 24 becomes equal to or higher than the indoor set temperature during the radiant heating operation during the radiant one operation mode operation. In addition to switching to the breeze heating operation, when the room temperature becomes lower than the indoor set temperature by a predetermined temperature Ta or more during the radiant breeze heating operation, the radiant breeze heating operation is switched to the radiant heating operation.
Further, the operation mode control unit 51 automatically stops the operation (thermo-off) when the room temperature becomes higher than the indoor set temperature by a predetermined temperature Tb or more during the heating operation, and then the room temperature. When the temperature drops to the indoor set temperature, the operation is started again (thermo-on).

(Indoor motorized valve controller 52)
The indoor motorized valve control unit 52 controls the opening degree of the indoor motorized valve 23. As shown in Table 2, the indoor motor-operated valve control unit 52 closes the indoor motor-operated valve 23 during the cooling operation or the hot air heating operation. Table 2 shows control states of the indoor motor operated valve 23, the indoor fan 21, and the compressor 30 during each operation.

  As shown in Table 2, the indoor motor-operated valve control unit 52 controls the opening degree of the indoor motor-operated valve 23 based on the temperature of the radiation panel 22 during the radiation heating operation or the radiation breeze heating operation. Specifically, the surface temperature (predicted value) of the radiation panel 22 is calculated based on the average value of the temperatures detected by the panel input temperature sensor 25 and the panel output temperature sensor 26, and the surface temperature of the radiation panel 22 is calculated. Of the indoor motor-operated valve 23 is controlled so that the predicted value (hereinafter, simply referred to as “radiant panel temperature”) falls within the panel target temperature range (for example, 50 to 55 ° C.). As the radiant panel temperature is lower than the panel target temperature range, the indoor motor-operated valve control unit 52 controls the opening of the indoor motor-operated valve 23 so that the flow rate of the refrigerant supplied to the radiant panel 22 increases. However, the indoor motor-operated valve control unit 52 controls the indoor motor-operated valve 23 to the initial opening until the predetermined time t1 has elapsed from the start of the operation (when the operation is started by operating the remote controller 4 or when the operation is started by thermo-on). . In this embodiment, in order to calculate the radiation panel temperature, both the detected temperature of the panel input temperature sensor 25 and the panel output temperature sensor 26 are used, but only the detected temperature of the panel input temperature sensor 25 is used. Alternatively, only the temperature detected by the panel temperature sensor 26 may be used.

(Indoor fan control unit 53)
The indoor fan control unit 53 controls the rotational speed of the indoor fan 21. Table 3 shows the fan taps selected during the automatic air volume operation, the radiant heating operation, and the radiant light wind heating operation of the hot air heating operation, and the rotation speeds corresponding to the fan taps.

  During the air volume automatic operation of the hot air heating operation, the indoor fan control unit 53 selects one of the five stages of fan taps A1 to A5 shown in Table 3 based on the indoor temperature or the indoor set temperature detected by the indoor temperature sensor 24. And the indoor fan 21 is controlled to the number of rotations (a1 to a5) corresponding to the fan tap. Further, in the hot air heating operation, when “strong” to “weak” are set as the air volume setting, a preset fan tap is determined respectively.

  In addition, during the air volume automatic operation during the cooling operation, the indoor fan control unit 53 selects one of a plurality of preset fan taps based on the indoor temperature, the indoor set temperature, or the like detected by the indoor temperature sensor 24. And the indoor fan 21 is controlled to the rotation speed corresponding to this fan tap. Further, in the cooling operation, when “strong” to “weak” are set as the air volume setting, fan taps set in advance are respectively determined.

  In addition, during the radiant heating operation, the indoor fan control unit 53 selects one of the seven stages of fan taps B1 to B7 shown in Table 3 based on the indoor temperature or the indoor set temperature detected by the indoor temperature sensor 24. And the indoor fan 21 is controlled to the rotation speed (b1-b7) corresponding to this fan tap.

  Moreover, at the time of a radiation breeze heating operation, the indoor fan control part 53 controls the indoor fan 21 to the rotation speed c1 corresponding to the fan tap C1 shown in Table 3. The rotation speed c1 is smaller than any of the rotation speeds a1 to a5 during the hot air heating operation and the rotation speeds b1 to b7 during the radiant heating operation. The rotation speed c1 is a value at which almost no sound is generated due to the rotation of the indoor fan 21 and the draft feeling is hardly felt.

(Compressor control unit 54)
The compressor control unit 54 controls the operating frequency of the compressor 30.
During the hot air heating operation and the cooling operation, the frequency of the compressor 30 is controlled based on the room temperature, the indoor set temperature, and the like. Specifically, the compressor control unit 54 controls the compressor 30 such that the frequency of the compressor 30 increases as the difference between the indoor temperature and the indoor set temperature increases.

  In addition, during the radiant heating operation and the radiant air breeze heating operation, the compressor control unit 54 determines that the heat exchange temperature detected by the indoor heat exchange temperature sensor 27 substantially matches the upper limit temperature corresponding to the upper limit pressure in the refrigerant circuit. The compressor 30 is controlled as described above (this control is referred to as upper limit control). Specifically, the frequency of the compressor 30 is controlled by the control based on the indoor temperature and the indoor set temperature so that the heat exchange temperature detected by the indoor heat exchange temperature sensor 27 exceeds the upper limit temperature. Also, the heat exchange temperature is controlled so as to become a value near the upper limit temperature without exceeding the upper limit temperature.

(Outdoor motorized valve controller 55)
The outdoor electric valve control unit 55 controls the opening degree of the outdoor electric valve 34 based on the indoor temperature, the indoor set temperature, and the like.

<Operation of the air conditioner 1>
Next, operation | movement of each heating operation mode of the air conditioner 1 is demonstrated.

(Hot air heating operation mode operation)
When the operation of starting the warm air heating operation mode is performed by the remote controller 4 and “automatic air volume” is selected as the air volume setting, the indoor fan control unit 53 causes the indoor fan 21 to be fan-tapped according to the indoor temperature. The rotational speed is controlled to correspond to any one of A1 to A5. Further, the compressor control unit 54 controls the compressor 30 such that the operating frequency increases as the difference between the room temperature and the room set temperature increases. Moreover, the indoor motor operated valve 23 is closed.

  In addition, when the operation of starting the warm air heating operation mode is performed by the remote controller 4 and “strong” or “weak” is selected as the air volume setting, the indoor motor-operated valve 23 and the compressor 30 are set to “automatic air volume”. The indoor fan 21 is controlled by the indoor fan control unit 53 to a rotational speed corresponding to a predetermined fan tap.

(Radiation 1 operation mode operation)
When the operation of starting the radiation 1 operation mode operation is performed by the remote controller 4, the radiation heating operation is started when the indoor temperature at the start of the operation is lower than the indoor set temperature. In this case, the indoor fan control unit 53 controls the indoor fan 21 to a rotational speed corresponding to any one of the fan taps B1 to B7 according to the indoor temperature and the indoor set temperature. Further, the compressor control unit 54 controls the compressor 30 so that the heat exchange temperature detected by the indoor heat exchange temperature sensor 27 substantially coincides with the upper limit temperature (upper limit control is performed). Further, the indoor motor-operated valve control unit 52 controls the indoor motor-operated valve 23 to the initial opening until a predetermined time t1 has elapsed from the start of operation, and when the predetermined time t1 has elapsed from the start of operation, the radiant panel temperature changes to the panel. The opening degree is controlled to be within the target temperature range.

  When the room temperature reaches the indoor set temperature during the radiant heating operation, the radiant heating operation is switched to the radiant light breeze heating operation. Thereby, the indoor fan control part 53 controls the indoor fan 21 to the rotation speed c1 corresponding to the fan tap C1. The indoor motor-operated valve control unit 52 and the compressor control unit 54 control the indoor motor-operated valve 23 and the compressor 30 in the same manner as before switching to the radiant light wind heating.

  When the indoor temperature further rises and the indoor set temperature becomes higher than the indoor set temperature by a predetermined temperature Tb or more, the operation is automatically stopped (thermo-off). Thereby, the indoor fan 21 and the compressor 30 are stopped, and the indoor motor-operated valve 23 is switched to the fully closed state. Thereafter, when the room temperature decreases to the indoor set temperature, the operation is started again (thermo-on).

  When the indoor temperature becomes lower than the indoor set temperature by a predetermined temperature Ta or more during the radiant light wind heating operation, the radiant light wind heating operation is switched to the radiant heating operation. The fan 21 and the compressor 30 are controlled.

(Radiation 2 operation mode operation)
When the operation for starting the radiation 2 operation mode operation is performed by the remote controller 4, the radiation breeze heating operation is started. The indoor fan control unit 53 controls the indoor fan 21 to the rotational speed c1 corresponding to the fan tap C1. Further, the compressor control unit 54 controls the compressor 30 so that the heat exchange temperature detected by the indoor heat exchange temperature sensor 27 substantially coincides with the upper limit temperature (upper limit control is performed). Further, the indoor motor-operated valve control unit 52 controls the indoor motor-operated valve 23 to the initial opening until a predetermined time t1 has elapsed from the start of operation, and when the predetermined time t1 has elapsed from the start of operation, the radiant panel temperature changes to the panel. The opening degree is controlled to be within the target temperature range.

(Defrost operation)
Moreover, in the air conditioner 1, in order to remove the frost adhering to the outdoor heat exchanger 32 at the time of heating operation mode operation | movement, the four-way switching valve 31 is switched to the state shown with the broken line in FIG.1 and FIG.2, and heating operation is carried out. To defrost operation (defrost operation). In the air conditioner 1 of this embodiment, when performing a defrost operation, the indoor motor operated valve 23 is closed. Thereby, since a low-temperature refrigerant | coolant does not flow into the radiation panel 22, the temperature fall of the radiation panel 22 can be suppressed. Therefore, when the heating operation is started again, the temperature of the radiation panel 22 can be quickly brought within the panel target temperature range.

  In addition, control of the indoor motor operated valve 23 during the defrosting operation is not limited to this, and the indoor motor operated valve 23 is maintained at a predetermined opening degree until the radiation panel temperature reaches a predetermined temperature. When the temperature falls to the predetermined temperature, the indoor motor-operated valve 23 may be switched to a closed state. In this case, since a low-temperature refrigerant flows through the radiation panel 22, the temperature of the radiation panel 22 decreases to some extent, but the amount of heat stored in the radiation panel 22 can be used for defrosting the outdoor heat exchanger 32. The frost attached to the outdoor heat exchanger 32 can be removed more quickly than in the case described above.

<Characteristics of remote control 4 of this embodiment>
In the remote controller 4 of the present embodiment, a main operation mode switching button 44a for switching the main operation mode including the cooling operation mode and the heating operation mode, and an auxiliary operation mode that can be set when the heating operation mode is selected as the main operation mode. And an auxiliary operation mode switching button 43c. The main operation mode switching button 44a is provided at a portion covered by the lid member 49 when the lid member 49 provided on the main body portion 41 so as to be opened and closed is in a closed state. The auxiliary operation mode switching button 43c is provided in a portion that is not covered by the lid member 49 when the lid member 49 is in the closed state. Therefore, the user needs to open the lid member 49 in order to switch the main operation mode. Therefore, in a state where the user does not intend to switch the main operation mode, the main operation mode switching button 44a is hardly operated. Therefore, it is possible to prevent the operation mode from being changed without the intention of the user. Further, although the usage frequency of the auxiliary operation mode switching button 43c is considered to be higher than the usage frequency of the main operation mode switching button 44a, the auxiliary operation mode switching button 43c is not covered by the closed lid member 49. Because it is provided, convenience is improved.

  Moreover, in the remote control 4 of this embodiment, when the heating operation mode is selected, the auxiliary operation mode that is the radiation heating operation mode can be switched. Therefore, when the heating operation mode is selected as the main operation mode, the radiant heating can be easily performed by operating the auxiliary operation mode switching button 43c provided in the portion not covered by the closed lid member 49. Operation mode can be set.

  Furthermore, in the remote control 4 of this embodiment, the radiation heating operation mode includes a radiation 1 operation mode and a radiation 2 operation mode. Therefore, by operating the auxiliary operation mode switching button 43c, the radiation 1 operation mode in which the radiation heating operation and the radiation breeze heating operation are automatically switched, and the radiation breeze heating operation in which the prevention of draft feeling is emphasized are performed. It is possible to switch to at least one of the two operation modes.

  Further, in the remote controller 4 of the present embodiment, the auxiliary operation mode switching button is not required unless the display corresponding to the hot air heating operation mode is displayed on the operation mode display area 45b of the display unit 45 by the main operation mode switching button 44a. The display corresponding to the radiation 1 operation mode or the radiation 2 operation mode that can be switched by 43c cannot be displayed in the operation mode display area 45b. Therefore, the user confirms that the display corresponding to the hot air heating operation mode is displayed in the operation mode display area 45b of the display unit 45, and operates the auxiliary operation mode switching button 43c to operate the radiation 1 operation mode or The radiation 2 operation mode can be set.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes meanings equivalent to the scope of claims for patent and all modifications within the scope.

  In the above-described embodiment, the case where the main operation mode can be switched to the radiation 1 operation mode or the radiation 2 operation mode which is the auxiliary operation mode in the state where the main operation mode is the heating operation mode has been described, but the present invention is not limited to this. Therefore, for example, when the main operation mode is the cooling operation mode, it may be possible to switch to the auxiliary operation mode in which the indoor air volume, the wind direction, and the like are set to predetermined conditions.

  In the above-described embodiment, the case where the remote controller 4 has the lid member 49 that is opened and closed by sliding up and down with respect to the main body portion 41 has been described. However, the present invention is not limited to this. Therefore, the remote controller 4 may have a lid member that is supported so as to be swingable with respect to one end of the main body 41.

  In the above-described embodiment, the case where the auxiliary operation mode can be switched to the radiation 1 operation mode or the radiation 2 operation mode has been described. In addition, while performing warm air heating and radiation heating, May be switchable to a mode in which the heating capacity is emphasized so that is maintained more than during the radiant light wind heating operation.

  In addition, in the above-described embodiment, the case where the indoor unit 2 of the air conditioner 1 including the remote controller 4 has the radiation panel 22 has been described, but the present invention does not have the radiation panel 22. The present invention can also be applied to the harmony machine 1.

  Moreover, although the above-mentioned embodiment demonstrated the case where the remote control 4 was provided with the display part 45, the display part 45 does not need to be.

  If this invention is utilized, it can suppress that an operation mode is changed without a user's intention.

DESCRIPTION OF SYMBOLS 1 Air conditioner 4 Remote control 10 Refrigerant circuit 20 Indoor heat exchanger 21 Indoor fan 22 Radiation panel 41 Main body part 49 Cover member 43c Auxiliary operation mode switching button 44a Main operation mode switching button 45 Display part

Claims (5)

An air conditioner remote controller capable of cooling operation and heating operation,
A lid member provided so as to be openable and closable with respect to the main body,
A main operation mode switching button for switching a main operation mode including a cooling operation mode for performing a cooling operation and a heating operation mode for performing a heating operation;
An auxiliary operation mode switching button for switching an auxiliary operation mode that can be set when a predetermined main operation mode is selected,
The main operation mode switching button is provided in a portion covered by the lid member when the lid member is in a closed state,
The remote control characterized in that the auxiliary operation mode switching button is provided in a portion not covered by the lid member when the lid member is in a closed state. The air conditioner includes a heat exchanger and a radiant panel each having a part of piping constituting a refrigerant circuit, and a fan disposed in the vicinity of the heat exchanger,
The predetermined main operation mode is a heating operation mode in which warm air heating is performed by flowing a refrigerant through the heat exchanger,
The auxiliary operation mode is a radiant heating operation mode in which a refrigerant is supplied to the heat exchanger to perform hot air heating and a refrigeration panel is supplied to the radiant panel to perform radiant heating. Remote controller. Radiant heating operation mode is
A heat is supplied to the heat exchanger to perform hot air heating, and a refrigerant is supplied to the radiant panel to perform radiant heating, and a radiant heating operation is performed in which the air volume generated by the fan is maintained at a predetermined value or more. 1 radiant heating operation mode,
The refrigerant is supplied to the heat exchanger for hot air heating and the refrigerant is supplied to the radiant panel for radiant heating, and a radiant light air heating operation is performed in which the air volume generated by the fan is maintained below the predetermined value. Second radiant heating operation mode,
The remote control according to claim 2, comprising at least one of a third radiant heating operation mode in which the radiant heating operation and the radiant light breeze heating operation are automatically switched. A display unit capable of displaying different displays corresponding to a plurality of modes,
If the display corresponding to the heating operation mode is not displayed on the display unit by the main operation mode switching button, the display corresponding to the mode switchable by the auxiliary operation mode switching button is displayed on the display unit. The remote control according to claim 1, wherein the remote control cannot be performed. The air conditioner provided with the remote control of any one of Claims 1-4.

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