JP2010139082A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of being quickly shifted to a desired operation mode, and superior in comfort. <P>SOLUTION: This air conditioner includes an indoor suction temperature detecting means 3 for detecting a suction temperature of an indoor-side unit (not shown in drawing), an outdoor suction temperature detecting means 7 for detecting a suction temperature of an outdoor-side unit (not shown in drawing), an indoor set temperature memorizing means 16 for memorizing an indoor set temperature, an operation time measuring means 20 for measuring a lapse time from the start of the operation, an operation time comparing means 22 for comparing the measured time by the operation time measuring means 20 and a specific time, and an operation mode determining means 17 for determining cooling/dehumidification, or heating in an automatic operation on the basis of the detected indoor suction temperature, the detected outdoor suction temperature, the memorized set temperature and a result of the determination by the operation time comparing means 22. When a set temperature is changed in a state that the lapse time from the start of the operation is less than the specific time, the determination of the automatic operation is performed again, thus the air conditioner can be quickly shifted to the operation mode according to the set temperature, and comfort can be improved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an air conditioner, and more particularly to operation control of an air conditioner.

In a conventional air conditioner, when a certain time elapses, cooling / dehumidification or heating is determined in automatic operation based on the suction temperature of the indoor unit, the suction temperature of the outdoor unit, and the set temperature set by the user. (For example, refer to Patent Document 1).
JP-A-8-128702

  However, in the control of the conventional air conditioner, since the determination of the operation mode is performed only at regular intervals, when the set temperature is largely changed by the user, until the next determination time comes In order not to change, there was a problem that the operation mode intended by the user was not achieved for a certain period of time.

  The present invention solves the above-described conventional problems, and an object thereof is to provide an air conditioner that quickly shifts to an operation mode according to a temperature set by a user and improves comfort.

  In order to solve the above-mentioned conventional problems, the air conditioner of the present invention includes an indoor suction temperature detection means for detecting the suction temperature of the indoor unit, an outdoor suction temperature detection means for detecting the suction temperature of the outdoor unit, Indoor set temperature storage means for storing the indoor set temperature, operation time measurement means for measuring the elapsed time from the start of operation, operation time storage means for storing a predetermined time in advance, and measurement time by the operation time measurement means An operation time comparing means for comparing with a predetermined time stored in the operation time storage means, an indoor suction temperature detected by the indoor suction temperature detecting means, an outdoor suction temperature detected by the outdoor suction temperature measuring means, and the Cooling and dehumidification in automatic operation in response to the set temperature stored in the indoor set temperature storage means and the determination result of the operation time comparison means Is equipped with an operation mode determination means for determining heating, and when the elapsed time from the start of operation is less than the predetermined time and the set temperature is changed, the determination of automatic operation is performed again. Even if the set temperature is reset immediately after the start, the operation mode can be determined again at that time, so that it is possible to operate in the operation mode according to the set temperature, and to improve comfort. it can.

  The air conditioner of the present invention includes an indoor suction temperature detection means for detecting the suction temperature of the indoor unit, an outdoor suction temperature detection means for detecting the suction temperature of the outdoor unit, and an indoor room that stores the indoor set temperature. In automatic operation from the set temperature storage means, the indoor suction temperature detected by the indoor suction temperature detection means, the outdoor suction temperature detected by the outdoor suction temperature detection means, and the set temperature stored in the indoor set temperature storage means An operation mode determining means for determining cooling, dehumidification, or heating is provided, storing a change amount when the set temperature is changed, and having a means for comparing the change amount with a preset change amount. When the change is larger than the set amount of change, the automatic operation determination is performed again. When the radically changed the constant temperature immediately shifted to the operation mode corresponding to the set temperature, can always be operated in the operation mode corresponding to the set temperature, it is possible to improve the comfort.

  In the air conditioner of the present invention, when the set temperature is changed during the automatic operation, the operation mode can be determined according to the change, so that the user can quickly shift to the operation mode according to the temperature set by the user. It is possible to improve.

  The first invention includes an indoor suction temperature detecting means for detecting the suction temperature of the indoor unit, an outdoor suction temperature detecting means for detecting the suction temperature of the outdoor unit, and an indoor set temperature storage means for storing the indoor set temperature. Driving time measuring means for measuring an elapsed time from the start of driving, driving time storage means for storing a fixed time in advance, measuring time by the driving time measuring means, and a fixed time stored in the driving time storage means, Operating time comparison means, indoor suction temperature detected by the indoor suction temperature detection means, outdoor suction temperature detected by the outdoor suction temperature measurement means, and set temperature stored in the indoor set temperature storage means An operation mode determination unit that receives the determination result of the operation time comparison unit and determines whether it is cooling, dehumidifying or heating in automatic operation. If the elapsed time from the start of operation is less than the predetermined time and the set temperature is changed, the automatic operation is again determined, and the user resets the set temperature immediately after the start of operation. However, since the operation mode can be determined again at that time, it is possible to operate in the operation mode corresponding to the set temperature, and to improve the comfort.

  The second invention includes an indoor suction temperature detecting means for detecting the suction temperature of the indoor unit, an outdoor suction temperature detecting means for detecting the suction temperature of the outdoor unit, and an indoor set temperature storage means for storing the indoor set temperature. Cooling / dehumidification in automatic operation from the indoor suction temperature detected by the indoor suction temperature detection means, the outdoor suction temperature detected by the outdoor suction temperature detection means, and the set temperature stored in the indoor set temperature storage means, or An operation mode determining means for determining heating is provided, the change amount is stored when the set temperature is changed, and the change is stored in a preset amount. When the change is larger than the amount, the automatic operation determination is performed again. If the changed immediately shifted to the operation mode corresponding to the set temperature, can always be operated in the operation mode corresponding to the set temperature, it is possible to improve the comfort.

  In particular, the third invention includes a time measuring means for measuring the time since the previous change of the preset temperature of the second invention, and a time storage means for storing the time, and the preset temperature is changed. If the time since the previous set temperature was changed is less than the preset time, automatic operation is not judged, and the set temperature is changed many times in a short time. Frequent mode changes can be suppressed, and comfort can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a refrigeration cycle diagram of an air conditioner according to Embodiment 1 of the present invention, FIG. 2 is a block diagram showing a control method of the air conditioner, and FIG. 3 is a flowchart showing a control method of the air conditioner. It is.

In FIG. 1, the air conditioner in this Embodiment is comprised from the indoor side unit 1 and the outdoor side unit 2, and the indoor side unit 1 detects the suction temperature of the indoor side unit 1 in the indoor suction temperature detection means. 3, the indoor heat exchanger 4, the indoor heat exchanger temperature sensor 5 for detecting the temperature of the indoor heat exchanger 4, and the indoor air blower for sucking indoor air and passing it through the indoor heat exchanger 4 6, and the outdoor unit 2 includes an outdoor suction temperature detecting means 7 that detects the suction temperature of the outdoor unit 2, an outdoor heat exchanger 8, and an outdoor heat exchanger temperature that detects the temperature of the outdoor heat exchanger 8. A sensor 9, an outdoor blower 10 that applies outside air to the outdoor heat exchanger 8, a compressor 11, a throttle mechanism 12, and a four-way valve 13 are provided.

  2, the air conditioner in the present embodiment further includes an indoor set temperature storage means 16, an operation mode determination means 17, an indoor set temperature change amount storage means 18, and an indoor set temperature change amount comparison means 19. The operation time measuring means 20, the operation time storage means 21, the operation time comparison means 22, the time measurement means 23 from the previous setting change, the time storage means 24 from the previous setting change, and the previous setting change. The operation mode determination means 17 determines the operation mode based on the information of the indoor set temperature storage means 16, the indoor suction temperature detection means 3, and the outdoor suction temperature detection means 7.

  Then, the indoor set temperature change amount storage means 18, the indoor set temperature change amount comparison means 19, the operation time measurement means 20, the operation time storage means 21, the operation time comparison means 22, the time measurement means 23 from the previous setting change, The operation mode is changed when the conditions of the time storage means 24 from the previous setting change and the time comparison means 25 from the previous setting change are satisfied.

  Next, the control method of the air conditioner in this Embodiment is demonstrated using FIG.

  At the start of automatic operation, in step 1 (hereinafter referred to as “ST1”), the respective temperatures are acquired by the indoor suction temperature detection means 3, the outdoor suction temperature detection means 7, and the indoor set temperature storage means 16. At the same time, in ST2, the time from the start of operation is measured by the operation time recording measuring means 20, and in ST3, the operation time measured in ST2 is stored in the operation time storage means 21.

  Next, in ST4, the first operation mode determination is performed by the operation mode determination means 17 from the temperature obtained in ST1, and the operation is started in the determined operation mode (ST5). After that, when a change in the set temperature is detected in ST6, in ST7, the operation time stored in ST3 and the operation start permitting the mode change by the preset temperature change stored in advance are determined in advance. The fixed time TIME1 is compared with the time comparison means 25 from the previous setting change. If the operation time is less than TIME1, the process returns to ST3 again and starts again at ST4 from the temperature detected by each temperature detection means. The mode determination unit 17 performs mode determination.

(Embodiment 2)
FIG. 4 is a flowchart showing a control method of the air conditioner according to Embodiment 2 of the present invention. In addition, the same code | symbol is attached | subjected to the same part as the air conditioner in the said 1st Embodiment, and the description is abbreviate | omitted.

  In FIG. 4, the air conditioner according to the present embodiment acquires the respective temperatures from the indoor suction temperature detection means 3, the outdoor suction temperature detection means 7, and the indoor set temperature storage means 16 in ST8 at the start of automatic operation. At the same time, in ST9, the time from the previous setting change is measured by the time measurement means 23, and the time since the set temperature is changed is measured, and the time measured in ST9 is stored in the time storage means 24 from the previous setting change. To do.

Next, in ST11, the operation mode determination means 17 performs operation mode determination from the temperature obtained in ST8, and operation is started in the determined operation mode (ST12). Thereafter, when a change in the set temperature is detected in ST13, in ST14, the reference (ΔT) of the change amount of the set temperature stored in advance is compared with the change amount of the current set temperature, and the change amount is equal to or greater than ΔT. If yes, proceed to ST15.

  In ST15, the time from the last change stored in ST10 and the time reference TIME2 from the previous set temperature change that prohibits the mode change by the preset temperature change stored in advance are compared with the time from the previous setting change. If the time stored by the means 25 and the stored time exceeds TIME2, the process returns to ST8 again, and the mode determination by the operation mode determination means 17 is performed again in ST11 from the temperatures detected by the respective temperature detection means.

  As described above, since the air conditioner according to the present invention has improved responsiveness to a change in set temperature, it can be applied to a device that has an indoor suction sensor and an outdoor suction sensor and performs mode determination.

Refrigeration cycle diagram of the air conditioner in Embodiment 1 of the present invention Block diagram showing the control method of the air conditioner Flow chart showing the control method of the air conditioner The flowchart which shows the control method of the air conditioner in Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Outdoor unit 3 Indoor suction temperature detection means 4 Indoor heat exchanger 5 Indoor heat exchanger temperature sensor 6 Indoor air blower 7 Outdoor suction temperature detection means 8 Outdoor heat exchanger 9 Outdoor heat exchanger temperature detection means 10 Outdoor blower 11 Compressor 12 Throttle mechanism 13 Four-way valve 16 Indoor set temperature storage means 17 Operation mode determination means 18 Indoor set temperature change amount storage means 19 Indoor set temperature change amount comparison means 20 Operating time measurement means 21 Operating time storage means 22 Operating time comparison means 23 Time measurement means (time measurement means) from previous setting change
24 Time storage means (time storage means) from previous setting change
25 Time comparison means from previous setting change (time comparison means)

Claims (3)

An indoor suction temperature detection means for detecting the suction temperature of the indoor unit, an outdoor suction temperature detection means for detecting the suction temperature of the outdoor unit, an indoor set temperature storage means for storing the set temperature of the room, and An operation time measuring means for measuring elapsed time, an operation time storage means for storing a predetermined time in advance, and an operation time comparison for comparing the measurement time by the operation time measuring means with the constant time stored in the operation time storage means Means, the indoor suction temperature detected by the indoor suction temperature detection means, the outdoor suction temperature detected by the outdoor suction temperature measurement means, the set temperature stored in the indoor set temperature storage means, and the operating time comparison means In response to the result of the determination, it is equipped with an operation mode determination means that performs cooling / dehumidification or heating determination in automatic operation. If the elapsed time from less than said predetermined time, and the set temperature is changed, the air conditioner that features that re-determination of the automatic operation again. Indoor suction temperature detection means for detecting the suction temperature of the indoor unit, outdoor suction temperature detection means for detecting the suction temperature of the outdoor unit, indoor set temperature storage means for storing the set temperature of the room, and the indoor suction temperature An operation for determining cooling / dehumidification or heating in automatic operation from the indoor suction temperature detected by the detection means, the outdoor suction temperature detected by the outdoor suction temperature detection means, and the set temperature stored in the indoor set temperature storage means A mode determining unit is provided for storing a change amount when the set temperature is changed and comparing the change amount with a preset change amount, and the set temperature is changed larger than the preset change amount. An air conditioner characterized in that the determination of automatic driving is performed again in the event of failure. A time measuring means for measuring the time since the previous set temperature change and a time storage means for storing the time, and the time since the previous set temperature was changed when the set temperature was changed The air conditioner according to claim 2, wherein the automatic operation is not determined when is less than a preset time.