JP5857640B2 - air conditioner - Google Patents

Description

  The present invention relates to an air conditioner, and more particularly to an air conditioner having a preheating operation function and a heating reservation function.

  In the air conditioner, as a means for speeding up the heating in the morning of winter, Patent Document 1 (Japanese Patent Application Laid-Open No. 2010-48494) discloses a compressor start operation after receiving a heating start command while operating the compressor with low capacity. A preheat operation function that increases capacity is disclosed.

  In addition, a general air conditioner has a heating reservation function for heating a room so that the room reaches a predetermined temperature by a set time. However, the above-mentioned patent document describes the proper use of the preheating operation function and the heating reservation function. However, it is unclear whether function compatibility is possible and whether the priority order of functions needs to be determined.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an air conditioner that is easy to use for a user, in which it is decided on the air conditioner side on behalf of the user whether both functions should be compatible or one of the functions should be given priority.

An air conditioner according to a first aspect of the present invention is an air conditioner that uses a vapor compression refrigeration cycle in which refrigerant is circulated in the order of a compressor, a condenser, a decompression mechanism, and an evaporator, and includes setting means, control means, It has. The setting means is a means for setting the predetermined function so as to work at or near the time when the predetermined function is required. The control means performs the air conditioning operation in accordance with the conditions set by the setting means. The predetermined function includes a first function and a second function. The first function is a function of starting the heating operation when the compressor is operated at a low capacity during the preheating set time period, the refrigerant is circulated in the same refrigeration cycle as in the heating operation, and a heating operation start command is received. The second function is a function that automatically starts the heating operation so that the temperature of the air-conditioning target space approaches the set temperature at the heating set time. The setting means can set both the first function and the second function regardless of whether there is a contradiction in the establishment of both the first function and the second function.

  In order to determine on the air conditioner side whether the first function and the second function should be compatible or whether one of them should be given priority, it is possible to set both functions regardless of whether or not there is a contradiction in the establishment. It is necessary to. In this air conditioner, since the setting means can set both the first function and the second function, the other is not excluded because one is already set.

  The air conditioner which concerns on the 2nd viewpoint of this invention is an air conditioner which concerns on a 1st viewpoint, Comprising: The wind direction adjustment means is further provided. The wind direction adjusting means adjusts the conditioned air blowing direction. When the control means receives a command to start the heating operation during the period in which the first function is operating, the control means fixes the air blowing direction in the direction toward the predetermined region via the wind direction adjusting means.

  In this air conditioner, the first function is applied to a living scene that needs warm air immediately, for example, in the morning in winter, so the user can reach a zone where warm air reaches by fixing the direction of blowing warm air. It's easy for users to do in the morning.

  The air conditioner according to the third aspect of the present invention is the air conditioner according to the first aspect, and when the control means determines that the first function and the second function cannot be compatible, the first function and Prioritize any one of the second functions.

  In this air conditioner, for example, when the start time of the compressor in the first function coincides with the start time of the compressor in the second function, it is impossible to achieve both functions. That's fine. In other words, since the priority order of both functions is determined on the air conditioner side, the user does not have to think about it and is easy to use.

  The air conditioner which concerns on the 4th viewpoint of this invention is an air conditioner which concerns on a 3rd viewpoint, Comprising: A control means gives priority to a 1st function over a 2nd function.

  In this air conditioner, when priority is given to the 2nd function which warms the whole room to preset temperature, energy consumption will be increased. Therefore, a power saving effect can be obtained by prioritizing the first function that consumes less energy than the second function.

  An air conditioner according to a fifth aspect of the present invention is the air conditioner according to the fourth aspect, further comprising a selection means. The selection means is a means for selecting a power saving mode for performing an air conditioning operation with reduced energy consumption. The control means gives priority to the first function over the second function when receiving a command to execute the power saving mode from the selection means.

  In this air conditioner, since the first function having the power saving effect is automatically selected only by the user selecting the power saving mode, it is convenient for the user.

  The air conditioner according to a sixth aspect of the present invention is the air conditioner according to the fourth aspect or the fifth aspect, and the control means determines the second function start time based on the heating set time. Furthermore, the control means gives priority to the first function over the second function when at least one of the second function start time and the second set time is present in the preheating set time zone.

  In this air conditioner, the control means does not bother the user when there is at least one of the second function start time and the second set time in the preheat setting time zone of the first function. The first function is automatically selected to save power while supplying the minimum required warm air.

  An air conditioner according to a seventh aspect of the present invention is the air conditioner according to the sixth aspect, and further, when the heating set time exists in the preheat setting time zone, the control means starts the heating operation at the heating set time. .

  In this air conditioner, even if the user misses the time to start the heating operation in the preheating setting time zone of the first function, the heating operation starts at the heating setting time of the second function. It is convenient without taking.

  An air conditioner according to an eighth aspect of the present invention is the air conditioner according to the sixth aspect, and further, when the second set time is later than the preheat set time zone, the control means is at the final time of the preheat set time zone. Start heating operation.

  In this air conditioner, even if the first function ends, the compressor is continued for heating operation without being stopped, so the load on the compressor is reduced and a power saving effect is obtained.

  An air conditioner according to a ninth aspect of the present invention is the air conditioner according to the third aspect, further comprising a selection means. The selection means is a means for selecting a power saving mode for performing an air conditioning operation with reduced energy consumption. The control unit gives priority to the second function over the first function when receiving a command to cancel the power saving mode from the selection unit.

  In this air conditioner, it is possible to confirm that the user demands more comfort than power saving by canceling the power saving mode, and the second function can meet the demand.

The air conditioner according to the tenth aspect of the present invention is the air conditioner according to the ninth aspect, and the control means determines the second function start time based on the heating preheat setting time. Furthermore, the control means starts the heating operation at the second function start time when the second function start time exists in the preheat setting time zone.

  In this air conditioner, since the first function is activated only during the time period in which the first function precedes the second function, the temperature of the compressor is increased before the second function is started, and the compression at the start of the heating operation is performed. The load on the machine is reduced and a power saving effect is obtained.

  An air conditioner according to an eleventh aspect of the present invention is the air conditioner according to the tenth aspect, wherein the control means has a second function start time earlier than the preheat setting time zone, and the second set time is a preheat set time zone. When heating is present, the heating operation is started at the second function start time.

  In this air conditioner, it is possible to respond to a user who desires heating comfort with a second function having a higher capability than the first function.

In the air conditioner according to the first aspect of the present invention, the setting means may set both the first function and the second function regardless of whether there is a contradiction in the establishment of both the first function and the second function. It is possible to prevent the other from being excluded because one is already set.

  In the air conditioner according to the second aspect of the present invention, the first function is applied to a living scene that needs warm air immediately, for example, in the morning in winter, so the blowing direction of warm air is fixed, The user only needs to prepare in the morning in a zone where warm air reaches, which is convenient for the user.

  In the air conditioner according to the third aspect of the present invention, for example, when the start time of the compressor in the first function matches the start time of the compressor in the second function, it is impossible to achieve both functions. Therefore, either one may be prioritized. In other words, since the priority order of both functions is determined on the air conditioner side, the user does not have to think about it and is easy to use.

  In the air conditioner according to the fourth aspect of the present invention, when priority is given to the second function that warms the entire room to the set temperature, the energy consumption is increased, so the first function that consumes less energy than the first function. By prioritizing, a power saving effect can be obtained.

  In the air conditioner according to the fifth aspect of the present invention, since the first function having the power saving effect is automatically selected only by the user selecting the power saving mode, it is convenient for the user.

  In the air conditioner according to the sixth aspect of the present invention, in a state where at least one of the second function start time and the second set time exists in the preheat setting time zone of the first function, It is possible to automatically select the first function without bothering and to save power while supplying the minimum required warm air.

  In the air conditioner according to the seventh aspect of the present invention, even when the user misses the time to start the heating operation in the preheating setting time zone of the first function, the heating operation is started at the heating setting time of the second function. As a result, it is convenient for the user without any trouble.

  In the air conditioner according to the eighth aspect of the present invention, even if the first function ends, the compressor is continued for heating operation without being stopped, so the load on the compressor is reduced and power saving is achieved. An effect is obtained.

  In the air conditioner according to the ninth aspect of the present invention, it is possible to confirm that the user demands more comfort than power saving by canceling the power saving mode, and the second function can meet the demand.

  In the air conditioner according to the tenth aspect of the present invention, the first function is activated only during the time period in which the first function precedes the second function, so the compressor has risen in temperature before the second function starts. The load on the compressor is reduced, and a power saving effect is obtained.

  In the air conditioner according to the eleventh aspect of the present invention, it is possible to respond to a user who desires heating comfort with a second function having a higher capability than the first function.

The block diagram of the air conditioner which concerns on one Embodiment of this invention. The perspective view of the remote control unit for operating the indoor unit of an air conditioner and the air conditioner remotely. Air conditioner control block diagram The time chart of the 1st function and 2nd function in an air conditioner. The 1st control flow figure of an air-conditioner. The 2nd control flow figure of an air-conditioner. The 3rd control flow figure of an air-conditioner. The 4th control flow figure of an air-conditioner. The 5th control flow figure of an air-conditioner. The 6th control flow figure of an air-conditioner.

  Embodiments of the present invention will be described below with reference to the drawings. The following embodiments are specific examples of the present invention and do not limit the technical scope of the present invention.

(1) Configuration of Air Conditioner 1 FIG. 1 is a configuration diagram of an air conditioner 1 according to an embodiment of the present invention. In FIG. 1, an air conditioner 1 is an air conditioner capable of cooling operation and heating operation, and a liquid refrigerant communication pipe for connecting the indoor unit 2, the outdoor unit 3, and the outdoor unit 3 and the indoor unit 2. 7 and a gas refrigerant communication pipe 9.

(1-1) Indoor unit 2
In FIG. 1, the indoor unit 2 includes an indoor heat exchanger 11 and an indoor fan 35. The indoor heat exchanger 11 is a cross fin type heat exchanger, and can evaporate or condense the refrigerant flowing inside by heat exchange with indoor air, thereby cooling or heating indoor air.

  FIG. 2 is a perspective view of the indoor unit 2 of the air conditioner 1 and the remote control unit 52 for remotely operating the air conditioner 1. In FIG. 2, a remote control unit 52 (hereinafter referred to as a remote controller 52) communicates with a control unit built in the indoor unit 2 and the outdoor unit 3 to control the air conditioner according to a user operation.

(1-2) Outdoor unit 3
In FIG. 1, the outdoor unit 3 mainly includes a compressor 13, a four-way switching valve 15, an outdoor heat exchanger 17, an expansion valve 19, and an accumulator 21. Furthermore, the outdoor unit 3 also has an outdoor fan 55.

(1-2-1) Compressor 13, four-way switching valve 15, and accumulator 21
The compressor 13 sucks and compresses the gas refrigerant. An accumulator 21 is disposed in front of the suction port of the compressor 13 so that the liquid refrigerant is not directly sucked into the compressor 13.

  The four-way switching valve 15 switches the direction of the refrigerant flow when switching between the cooling operation and the heating operation. During the cooling operation, the four-way switching valve 15 connects the discharge side of the compressor 13 and the gas side of the outdoor heat exchanger 17 and connects the suction side of the compressor 13 and the gas side of the indoor heat exchanger 11. . That is, this is the state indicated by the solid line in the four-way selector valve 15 of FIG.

  During the heating operation, the four-way switching valve 15 connects the discharge side of the compressor 13 and the gas side of the indoor heat exchanger 11 and connects the suction side of the compressor 13 and the gas side of the outdoor heat exchanger 17. Connecting. That is, this is the state indicated by the dotted line in the four-way switching valve 15 in FIG.

(1-2-2) Outdoor heat exchanger 17 and outdoor fan 55
The outdoor heat exchanger 17 can condense or evaporate the refrigerant flowing in the interior by heat exchange with outdoor air. The outdoor fan 55 is disposed so as to face the outdoor heat exchanger 17, and by rotating, takes outdoor air and blows it to the outdoor heat exchanger 17, thereby exchanging heat between the refrigerant and the outdoor air. Facilitate.

(1-2-3) Expansion valve 19
The expansion valve 19 is connected to a pipe between the outdoor heat exchanger 17 and the indoor heat exchanger 11 in order to adjust the refrigerant pressure and the refrigerant flow rate, so that the refrigerant can be used in both the cooling operation and the heating operation. Has the function of expanding.

(1-3) Control unit 50
FIG. 3 is a control block diagram of the air conditioner 1. In FIG. 3, the control unit 50, based on the command signal from the remote controller 52, the operating frequency of the compressor 13, the switching operation of the four-way switching valve 15, the opening degree of the expansion valve 19, and the rotation of the wind direction adjusting blade drive motor 62. To control.

  As shown in FIG. 1, the control unit 50 includes an indoor control unit 50 a built in the indoor unit 2 and an outdoor control unit 50 b built in the outdoor unit 3. Infrared signals are transmitted and received between the indoor controller 50a and the remote controller 52. Signals are transmitted and received between the indoor control unit 50a and the outdoor control unit 50b via wires.

(1-4) Remote control 52
The remote control 52 includes an operation switch 22, an operation switch 24, a temperature setting switch 26, an on timer switch 28, a power saving mode switch 30, a first function setting switch 41, a second function setting switch 42, and a wind direction adjustment switch 61. It has been.

  The first function setting switch 41 and the second function setting switch 42 are collectively referred to as setting means. Further, the wind direction adjusting switch 61, the wind direction adjusting blade driving motor 62, and the wind direction adjusting blade 63 (see FIG. 2) are collectively referred to as the wind direction adjusting means 60.

  The operation switch 22 alternately switches between operation and stop of the air conditioner 1 every time it is operated. The operation changeover switch 24 switches the operation in the order of automatic → cooling → dehumidification → heating each time it is operated. The temperature setting switch 26 increases the set temperature each time it is pressed upward, and decreases the set temperature every time it is pressed down. Each time the on-time timer switch 28 is operated, it enters in sequence, such as 1 hour later, 2 hours later... 6 hours later, and the time is changed. Each time the power saving mode switch 30 is operated, the power saving mode is alternately switched on and off.

  Each time the first function setting switch 41 is operated, the first function is alternately switched on and off. Each time the second function setting switch 42 is operated, the second function is alternately switched on and off. Each time the wind direction adjustment switch 61 is operated, the wind direction adjustment blade 63 (see FIG. 2) is alternately switched between the vertical swing and the arbitrary position fixing.

(2) First Function and Second Function (2-1) First Function FIG. 4 is a time chart of the first function and the second function in the air conditioner. In FIG. 4, when the first function setting switch 41 is on, the compressor 13 is operated at a low capacity during a predetermined setting time period sandwiching an arbitrary first setting time t1, and the refrigerant is supplied in the same refrigeration cycle as in the heating operation. Circulate. This function is the first function.

  The first function start time t1s that is the start point of the set time period is a predetermined time earlier than the first set time t1, and the first function end time t1f that is the end point of the set time period is a predetermined time later than the first set time t1.

  In this set time period, if a command for starting the heating operation is input from the remote controller 52 to the control unit 50, the control unit 50 raises the operation frequency of the compressor 13 to the maximum capacity. Since the compressor 13 is warmed by the low-capacity operation in advance, heating can be started quickly.

(2-2) Second function When the on time is set by the on timer switch 28, when the second function setting switch 42 is turned on, the on time becomes the second set time t2, and the time is the second time. The heating operation is started from time t2s earlier than the second set time t2, so that the room is already warmed when the set time t2 is reached. This function is the second function.

(3) Relationship between the power saving mode and the first function and the second function When the power saving mode switch 30 is on, even if both the first function setting switch 41 and the second function setting switch 42 are on, the control unit 50 The first function is prioritized over the second function.

(3-1) First State In FIG. 4, a state where only the second function start time t2s exists in the first function setting time period t1s to t1f is defined as a first state. Hereinafter, the operation of the air conditioner 1 when the power saving mode is on and off in the first state will be described.

(3-1-1) When the power saving mode is ON The air conditioner 1 operates with the first function until the set time zone t1s to t1f of the first function is completed. When the time reaches the first function end time t1f, the heating operation is started. In addition, the control part 50 starts heating operation from the time, when the heating operation start command is received in the middle of the set time zones t1s to t1f of the first function.

(3-1-2) When the power saving mode is off The air conditioner 1 operates with the first function from the first function start time t1s to the second function start time t2s. And heating operation is started from the 2nd function start time t2s. In addition, when the control part 50 receives the heating operation start command between the first function start time t1s and the second function start time t2s, the control unit 50 starts the heating operation from that point.

(3-2) Second State In FIG. 4, a state in which the second function start time t2s and the second set time t2 exist in the first function set time period t1s to t1f is referred to as a second state. Hereinafter, the operation of the air conditioner 1 when the power saving mode is on and when it is off in the second state will be described.

(3-2-1) When the power saving mode is ON The air conditioner 1 operates with the first function from the first function start time t1s to the second set time t2. And heating operation is started from the 2nd time t2. In addition, the control part 50 will start heating operation from the time, when the heating operation start command is received in the middle from the 1st function start time t1s to the 2nd setting time t2.

(3-2-2) When the Power Saving Mode is Off The air conditioner 1 operates with the first function from the first function start time t1s to the second function start time t2s. And heating operation is started from the 2nd function start time t2s. In addition, when the control part 50 receives the heating operation start command between the first function start time t1s and the second function start time t2s, the control unit 50 starts the heating operation from that point.

(3-3) Third State In FIG. 4, a state in which only the second set time t2 exists in the set time zones t1s to t1f of the first function is defined as a third state. Hereinafter, the operation of the air conditioner 1 when the power saving mode is on and when it is off in the third state will be described.

(3-3-1) When the power saving mode is on The air conditioner 1 operates with the first function from the first function start time t1s to the second set time t2. And heating operation is started from the 2nd setting time t2. In addition, the control part 50 will start heating operation from the time, when the heating operation start command is received in the middle from the 1st function start time t1s to the 2nd setting time t2.

(3-3-2) When the power saving mode is OFF The air conditioner 1 disables the first function and starts the heating operation from the second function start time t2s.

(4) Operation flow of first function and second function (4-1) Flow from setting of first function and second function to ON / OFF determination of power saving mode FIG. 5A is a first control flow of air conditioner 1 FIG. 5A, in step S1, the control unit 50 determines whether or not the first function is on. When it is determined to be on, the control unit 50 proceeds to step S2, and when it is determined to be off, the control unit 50 waits and continues the determination.

  In step S2, the control unit 50 waits for the input of the first set time t1, and when there is no input, the previous first set time is input.

  In step S3, the control unit 50 determines the first function start time t1s and the first function end time t1f. In the present embodiment, the first function start time t1s is 30 minutes before the first set time t1, and the first function end time t1f is 30 minutes after the first set time t1.

  In step S4, the control unit 50 determines whether or not the second function is on. If it is determined to be on, the control unit 50 proceeds to step S4. If it is determined to be off, the control unit 50 proceeds to the third control flow B.

  In step S5, the control unit 50 waits for input of the second set time t2, and if there is no input, the previous second set time is input.

  In step S6, the control unit 50 determines the second function start time t2s. In the present embodiment, the second function start time t2s is 20 minutes before the second set time t2.

  In step S7, the control unit 50 determines whether or not the power saving mode is on. If it is determined to be on, the control unit 50 proceeds to the second control flow A. If it is determined to be off, the control unit 50 proceeds to the fifth control flow D.

(4-2) Flow for Determining Compatibility of First Function and Second Function In step S8, the control unit 50 determines whether the first function start time t1s is earlier than the second function start time t2s. When it is determined to be early, the process proceeds to step S9, and when it is determined to be late, the process proceeds to the fourth control flow C.

  In step S9, the control unit 50 determines whether or not the first function end time t1f is earlier than the second function start time t2s. If it is determined to be early, the process proceeds to step S10, and if it is determined to be late, the fourth control is performed. Proceed to Flow C.

  In step S10, the control unit 50 determines whether or not the time has reached the first function start time t1s. When it is determined that the time has reached, the control unit 50 proceeds to step S11. Continue.

  In step S11, the control unit 50 starts the first function. In step S12, the control unit 50 determines whether or not there is a heating operation start command. When it is determined that there is the command, the control unit 50 proceeds to step S16 to start the heating operation, and when it is determined that there is no such command, the step is performed. Proceed to S13.

  In step S13, the control unit 50 determines whether or not the time has reached the first function end time t1f. When it is determined that the time has reached the first function end time t1f, the control unit 50 proceeds to step S14 and reaches the first function end time t1f. If it is determined that it is not, it waits and continues the determination.

  In step S14, the control unit 50 ends the first function. In step S15, the control unit 50 determines whether or not the time has reached the second function start time t2s. When determining that the time has reached the second function start time t2s, the control unit 50 proceeds to step S16 and reaches the second function start time t2s. If it is determined that it is not, it waits and continues the determination. In step S16, the control unit 50 starts the heating operation.

(4-3) Flow in which only the first function is movable In the previous step S4, the control unit 50 determines that the second function is OFF, and proceeds to step S41 of the third control flow B. In step S41, the control unit 50 determines whether or not the time has reached the first function start time t1s. When it is determined that the time has reached the first function start time t1s, the control unit 50 proceeds to step S42 and reaches the first function start time t1s. If it is determined that it is not, it waits and continues the determination.

  In step S42, the control unit 50 starts the first function. In step S43, the control unit 50 determines whether or not there is a heating operation start command. When it is determined that there is the command, the control unit 50 proceeds to step S431 to start the heating operation, and when it is determined that there is no such command, the step is performed. Proceed to S44.

  In step S44, the control unit 50 determines whether or not the time has reached the first function end time t1f. When it is determined that the time has reached the first function end time t1f, the control unit 50 proceeds to step S45, and reaches the first function end time t1f. If it is determined that it is not, it waits and continues the determination. In step S45, the control unit 50 ends the first function.

(4-4) Flow prioritizing the first function In step S8, the control unit 50 determines that the first function start time t1s is later than the second function start time t2s, or in step S9, the control unit 50 determines that the first function end time t1f is later than the second function start time t2s, and proceeds to step S71 of the fourth control flow C.

  In step S71, the control unit 50 determines whether or not the time has reached the first function start time t1s. When determining that the time has reached the first function start time t1s, the control unit 50 proceeds to step S72 and reaches the first function start time t1s. If it is determined that it is not, it waits and continues the determination.

  In step S72, the control unit 50 starts the first function. In step S73, the control unit 50 determines whether or not the time has reached the second set time t2, and when determining that the time has reached the second set time t2, starts the heating operation in step S77 and sets the second set time t2. If it is determined that it is not, the process proceeds to step S74.

  In step S74, the control unit 50 determines whether or not there is a heating operation start command. When it is determined that there is the command, the control unit 50 proceeds to step S77 to start the heating operation, and when it is determined that there is no such command, the step is performed. Proceed to S75.

  In step S75, the control unit 50 determines whether or not the time has reached the first function end time t1f. When it is determined that the time has reached the first function end time t1f, the control unit 50 proceeds to step S76 and reaches the first function end time t1f. If it is determined that it is not, the process returns to step S73. In step S76, the control unit 50 ends the first function. And the control part 50 starts heating operation by step S77.

(4-5) Flow prioritizing the second function, part 1
In the previous step S7, the control unit 50 determines that the power saving mode is off, and proceeds to step S81 of the fifth control flow D. In step S81, the control unit 50 determines whether or not the first function start time t1s is earlier than the second function start time t2s. If it is determined to be early, the process proceeds to step S82. If it is determined to be late, the process proceeds to step S89. Advance and start heating operation.

  In step S82, the control unit 50 determines whether or not the first function end time t1f is earlier than the second function start time t2s. When it is determined that the time is early, the control unit 50 proceeds to step S83. Proceed to Flow E.

  In step S83, the control unit 50 determines whether or not the time has reached the first function start time t1s. When it is determined that the time has reached, the process proceeds to step S84, and when it is determined that the time has not been reached, the control unit 50 waits and determines. Continue.

  In step S84, the control unit 50 starts the first function. In step S85, the control unit 50 determines whether or not there is a heating operation start command. When it is determined that there is the command, the control unit 50 proceeds to step S89 to start the heating operation, and when it is determined that there is no such command, the step is performed. Proceed to S86.

  In step S86, the control unit 50 determines whether or not the time has reached the first function end time t1f. When it is determined that the time has reached the first function end time t1f, the control unit 50 proceeds to step S87 and reaches the first function end time t1f. If it is determined that it is not, it waits and continues the determination.

  In step S87, the control unit 50 ends the first function. In step S88, the control unit 50 determines whether or not the time has reached the second function start time t2s. When determining that the time has reached the second function start time t2s, the control unit 50 proceeds to step S89 and reaches the second function start time t2s. If it is determined that it is not, it waits and continues the determination. And the control part 50 starts heating operation by step S89.

(4-6) Flow prioritizing the second function, part 2
In the previous step S82, the control unit 50 determines that the first function end time t1f is later than the second function start time t2s, and proceeds to step S91 of the sixth control flow E. In step S91, the control unit 50 determines whether or not the time has reached the first function start time t1s. When it is determined that the time has reached the first function start time t1s, the control unit 50 proceeds to step S92 and reaches the first function start time t1s. If it is determined that it is not, it waits and continues the determination.

  In step S92, the control unit 50 starts the first function. In step S93, the control unit 50 determines whether or not there is a heating operation start command. When it is determined that there is the command, the control unit 50 proceeds to step S95 to start the heating operation, and when it is determined that there is no such command, the step is performed. Proceed to S94.

  In step S94, the control unit 50 determines whether or not the time has reached the second set time t2, and when determining that the time has reached the second set time t2, the control unit 50 proceeds to step S95 and does not reach the second set time t2. Returns to step S93. In step S95, the control unit 50 starts the heating operation.

(5) Features (5-1)
In the air conditioner 1, both the first function and the second function can be set via the first function setting switch 41 and the second function setting switch 42 provided on the remote controller 52. Therefore, the other is not excluded because one is already set.

(5-2)
In the air conditioner 1, it is possible to fix the blowing direction of warm air. Therefore, the user only needs to prepare for the morning in a zone where warm air reaches even in the cold early morning, so it is convenient and comfortable.

(5-3)
In the air conditioner 1, when the first function start time t1s and the second function start time t2s coincide with each other, the control unit 50 determines the priority order of both functions. It is.

(5-4)
In the air conditioner 1, if priority is given to the second function that warms the entire room to the set temperature, energy consumption is increased. Therefore, priority is given to the first function that consumes less energy than the first function, thereby saving power. An effect is obtained.

(5-5)
In the air conditioner 1, since the first function having the power saving effect is automatically selected only by the user turning on the power saving mode switch 30 of the remote controller 52, it is convenient for the user.

(5-6)
In the air conditioner 1, the user's hand is bothered when there is at least one of the second function start time t2s and the second set time t2 in the first function set time period t1s to t1f. The first function can be automatically selected and power can be saved while supplying the minimum required warm air.

(5-7)
In the air conditioner 1, in the power saving mode, even if the user misses the time to start the heating operation in the set time zone of the first function, the heating operation is started at the second set time t2 of the second function. The user can save the trouble of operation.

(5-8)
In the air conditioner 1, in the power saving mode, even if the first function ends, the compressor 13 is continued for the heating operation without being stopped. Therefore, the load on the compressor 13 is reduced, and the power saving effect is achieved. Is obtained.

(5-9)
In the air conditioner 1, it can be confirmed that the user demands more comfort than power saving by turning off the power saving mode switch 30 of the remote controller 52, and the second function can meet the demand.

(5-10)
In the air conditioner 1, since the first function is activated only during a time period in which the first function precedes the second function, the temperature of the compressor 13 is increased before the second function is started. This reduces the load of the battery and provides a power saving effect.

(5-11)
In the air conditioner 1, it is possible to respond to a user who desires heating comfort with a second function having a higher capability than the first function.

  The present invention is useful for a wall-mounted air conditioner.

40 Setting means 50 Control means 60 Wind direction adjusting means

JP 2010-48494 A

Claims (11)

An air conditioner using a vapor compression refrigeration cycle in which a refrigerant is circulated in the order of a compressor, a condenser, a decompression mechanism, and an evaporator,
A setting means (40) for setting the predetermined function to work at or near the time when the predetermined function is required;
Control means (50) for performing air-conditioning operation in accordance with the conditions set by the setting means (40);
With
The predetermined function is:
A first function of operating the compressor at a low capacity during a preheating set time period (t1s to t1f), circulating the refrigerant in the same refrigeration cycle as in the heating operation, and starting the heating operation when receiving a heating operation start command When,
A second function for automatically starting the heating operation so that the temperature of the air-conditioning target space approaches the set temperature at the heating set time (t2);
Including
The setting means (40) can set both the first function and the second function regardless of whether there is a contradiction in the establishment of both the first function and the second function.
air conditioner. Further comprising a wind direction adjustment means for adjusting the blowing direction of the conditioned air (60),
When the control means (50) receives a command to start heating operation during the period when the first function is operating, the control means (50) directs the air blowing direction to a predetermined region via the wind direction adjusting means (60). Fixed in the direction,
The air conditioner according to claim 1. The control means (50) gives priority to one of the first function and the second function when it is determined that the first function and the second function cannot be made compatible.
The air conditioner according to claim 1. The control means (50) prioritizes the first function over the second function.
The air conditioner according to claim 3. Further comprising a selection means (30) for selecting a power saving mode for performing an air-conditioning operation with reduced energy consumption,
The control means (50) gives priority to the first function over the second function when receiving an instruction to execute the power saving mode from the selection means (30).
The air conditioner according to claim 4. The control means (50) determines a second function start time (t2s) based on the heating set time (t2),
Further, when at least one of the second function start time (t2s) and the heating setting time (t2) is present in the preheating setting time zone (t1s to t1f), the control means (50) Prioritize the first function over two functions,
The air conditioner according to claim 4 or 5. Furthermore, the control means (50) starts the heating operation at the heating setting time (t2) when the heating setting time (t2) is present in the preheating setting time zone (t1s to t1f).
The air conditioner according to claim 6. Furthermore, when the heating setting time (t2) is later than the preheating setting time zone (t1s to t1f), the control means (50) starts the heating operation at the final time of the preheating setting time zone.
The air conditioner according to claim 6. Further comprising a selection means (30) for selecting a power saving mode for performing an air-conditioning operation with reduced energy consumption,
The control means (50) gives priority to the second function over the first function when receiving a command to cancel the power saving mode from the selection means (30).
The air conditioner according to claim 3. The control means (50) determines a second function start time (t2s) based on the heating set time (t2),
Furthermore, the control means (50) starts the heating operation at the second function start time (t2s) when the second function start time (t2s) is present in the preheating set time zone (t1s to t1f). ,
The air conditioner according to claim 9. Further, the control means (50) has the second function start time (t2s) earlier than the preheating set time zone (t1s to t1f), and the heating set time (t2) is set to the preheat set time zone (t1s to t1s). t1f), the heating operation is started at the second function start time (t2s).
The air conditioner according to claim 10.

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