JP3134622B2 - Startup control device for air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner start control device for controlling the start of a compressor.

[0002]

2. Description of the Related Art Conventionally, as a power failure automatic recovery start-up control device for an air conditioner, for example, the one shown in FIG. 4 is known to prevent an abnormal stop such as a compressor lock at a momentary power failure. The activation control device includes a control wiring board 11 for controlling an unillustrated indoor unit, and controls the start and stop of a compressor of an unillustrated outdoor unit that circulates refrigerant to the indoor unit. The control wiring board 11 includes the commercial power supply 1.
2, a microcomputer (hereinafter abbreviated as "microcomputer") 13 having an internal timer 20 and controlling the indoor unit, and inputting an operation command, a stop command, a set room temperature value, etc. of the indoor unit to the microcomputer 13 Remote controller
(Hereinafter, abbreviated as "remote controller"). The remote controller has an input terminal 14 for connecting a remote controller 16 and a remote input terminal 15 for remotely inputting an operation command signal and the like to the microcomputer 13. An output line of a power failure automatic return wiring board 17 having a timer contact 18 is connected to the remote input terminal 15.
When the commercial power supply 12 is turned on, the external timer 19 starts measuring a certain time (3 minutes), and at the same time the timer contact is closed, the timer contact 18 closes, and the remote start input terminal 1 of the microcomputer 13
5, an operation command signal is input.

The microcomputer 13 of the control wiring board 11
The following control is performed according to the flowchart of FIG. That is, when the commercial power supply 12 is turned on, the microcomputer 13 sets an internal flag in step S1, sets the internal timer 20 to a time-out state, and proceeds to step S2.
Then, it is determined whether or not an operation command signal has been input to the remote control input terminal 14 or the remote input terminal 15. If the determination is affirmative, the process proceeds to step S3 where the internal timer 20
It is determined whether or not the time measurement has been completed.
Since the timer has already been set to the end state in step 1, it is determined to be affirmative, and the process proceeds to step S4 to start the compressor of the outdoor unit. On the other hand, when there is no input of the operation command signal, the process proceeds to step S5, and it is determined whether or not the compressor is started. Here, it is determined that the compressor is started because the user inputs a stop command signal from the remote controller 16 to the remote control input terminal 14 after the compressor is started through steps S2 to S4, This is a case where a stop command signal is input from the power failure automatic return wiring board 17 to the remote input terminal 15 due to the power failure. In this case, the process proceeds to step S6, in which the internal flag is lowered and the internal timer 20 starts counting time. On the other hand, it is determined that the compressor has not been started when no operation command signal is input. In this case, the compressor is stopped as in the case of the processing in step S6 (see step S7). ), Step S2
Return to the processing of.

[0004] When an operation command signal is input to the remote control input terminal 14 or the remote input terminal 15 after the compressor being operated is stopped and the internal timer 20 starts measuring time, the microcomputer 13 proceeds to step S2. The compressor is started in step S4 only after judging affirmatively and in step S3 that the three-minute time measurement by the internal timer 20 has ended.
As described above, when the compressor stops, the internal timer 20 always waits for a waiting time of three minutes, and then restarts the operation so that the pressure in the refrigerant pipe is uniform, and the compressor malfunctions at restart. Stops are prevented. In the case of product inspection at the time of shipment at a factory or test operation immediately after installation on site, a signal from the remote controller 16 is input to the remote control input terminal 14 and output from the microcomputer 13 directly without waiting for 3 minutes. The compressor is started to reduce the time required for shipping inspections and test runs.

[0005]

As described above, in order to prevent an abnormal stop such as a lock of a compressor in an automatic restart after a power failure including an instantaneous power failure, an automatic power failure recovery of an installed indoor unit is required. It is indispensable to connect the external timer 19 to the wiring board 17, and the fact is clearly stated in the on-site construction manual. However, the external timer 19 is time-consuming, for example, the contractor must purchase it separately.
In many cases, they are not actually connected. In this case, the power failure automatic return wiring board 17 is used with the timer contact 18 short-circuited. Then, assuming that the time counting of the external timer 19 has been completed, the remote input terminal 15
, The compressor is immediately started (see S4 in FIG. 4). For this reason, if the compressor being operated is stopped due to an instantaneous power failure and power supply is resumed within three minutes, for example, the compressor is started up at the same time as power supply is resumed until the pressure in the refrigerant pipe is equalized. To be
There is a problem that the compressor stops abnormally.

Therefore, an object of the present invention is to add a separate internal timer to a microcomputer for controlling an air conditioner, so that a certain period of standby time is required when the compressor is restarted, without providing an external timer. To provide a start-up control device for an air conditioner that can prevent abnormal stoppage of the compressor upon restarting while shortening the time for shipping inspection and trial operation, reducing the cost of indoor units and simplifying on-site construction. Is to do.

[0007]

In order to achieve the above object, an air conditioner activation control apparatus according to claim 1 is built in a control computer 3 of the air conditioner as exemplified in FIGS. The first timer 1 starts counting a certain time at the same time as the power supply to the air conditioner, and is built into the control computer 3 of the air conditioner. A second timer 2 for starting a predetermined time at the same time as the operation of the compressor is stopped, and an input judgment for judging whether or not the operation command signal is inputted to the remote input terminal 15 when the operation command signal is inputted. means
(S4), when the input judging means (S4) judges no, while judging whether or not the second timer 2 has finished measuring a certain time, the input judging means (S4) judges If it is determined to be affirmative, the timer determining means (S5, S6) for determining whether the first timer 1 and the second timer 2 have both counted the predetermined time, and the timer determining means (S5, S5). A start control means (S7) for starting the compressor when S6) is affirmative is provided.

[0008] A start control device for an air conditioner according to claim 2 is
As illustrated in FIG. 3, a computer 6 for controlling the indoor unit
And a first timer 1 which starts counting a certain time at the same time as turning on the power supply 12 to the indoor unit, and a control computer 8 for the outdoor unit which stops counting when turning on the power supply 12 to the outdoor unit. A second timer 2 for starting a predetermined time simultaneously with the stop of the operation of the compressor, and whether or not the operation command signal is input to the remote input terminal 15 when the operation command signal is input to the indoor unit. If the determination is negative, or if the determination is affirmative, and if the measurement of the predetermined time by the first timer 1 has been completed, a start request signal for requesting the outdoor unit to start the compressor is transmitted. In response to the activation request signal provided in the outdoor unit and the activation request means (S4, S5) for outputting, it is determined whether or not the second timer 2 has finished measuring a certain period of time. If you decide, Start-up control means for activating the compressor
(S6, S7).

[0009]

When the power supply is turned on to the air conditioner of the first aspect in a case where the compressor has not been started yet, the first timer 1 in the computer 3 starts measuring a fixed time while the computer starts counting time. The second timer 2 in 3 is in a timekeeping end state. Next, when the operation command signal is input, the input determining means (S4) determines whether or not the operation command signal has been input to the remote input terminal 15; The judging means (S5, S6) uses the second timer 2
It is determined whether or not the time counting by the timer has ended or whether the time counting by the first and second timers 1 and 2 has ended. Then, the timing determining means (S5, S6)
When the determination is affirmative, the activation control means (S7) activates the compressor. That is, when the compressor has not been started yet, when an operation command signal is input to a terminal other than the remote input terminal 15, the second timer 2 is already in a time-measured state, and the compressor is started immediately. This direct start mode is used when shortening the time required for shipping inspection at a factory or trial operation at an installation site. On the other hand, the operation command signal is
5, the compressor is started for the first time after the timer of the first timer 1 ends, that is, after a certain period of time has elapsed since the power was turned on, even when the second timer 2 has finished measuring the time. As a result, abnormal stop of the compressor at startup is prevented.
This standby start mode is used when pressure equalization in the refrigerant pipeline is required.

On the other hand, when the operating compressor stops, the second timer 2 simultaneously starts measuring a certain time. If an operation command signal is input to any of the terminals 14 and 15 during this time measurement, that terminal is connected to the remote input terminal 15.
Irrespective of whether or not, the time counting determining means (S6) determines whether or not the time counting for a certain time by the second timer 2 has been completed. Then, when the timing determination means (S6) determines affirmative, the activation control means (S7) activates the compressor. Therefore, when the compressor is stopped due to an instantaneous power failure or the like, an operation command signal is input at the time of restoration of the power failure.
Similarly, abnormal stop of the compressor at the time of starting is prevented. In addition,
Since the first and second timers 1 and 2 use those built in the control computer 3, it goes without saying that an external timer is not separately required. A start control device according to a first aspect is a so-called window type air conditioner having one indoor unit and an outdoor unit having one microcomputer, and an indoor unit having a microcomputer and an outdoor unit controlled by the microcomputer. Applied to air conditioners consisting of air conditioners.

When the power supply 12 is turned on to the indoor unit according to claim 2 when the compressor has not been started yet, the first timer 1 in the computer 6 for controlling the indoor unit starts measuring a certain time. On the other hand, when the power supply 12 is turned on to the outdoor unit, the second timer 2 in the control computer 8 of the outdoor unit enters a time-out state. Next, when an operation command signal is input to the indoor unit, the activation request means (S4, S5) determines whether or not the operation command signal has been input to the remote input terminal 15, and if it is determined that the operation command signal has not been input, Or judge positive and the first
If the time measurement for a certain period of time by timer 1 has ended,
A start request signal for starting the compressor is output to the outdoor unit. The activation control means (S6, S6) provided in the outdoor unit
7) receives the start request signal and receives the second timer 2
Judge whether the time measurement for a certain period of time has ended,
If the answer is yes, the compressor is started. In other words, when the compressor is not started yet, when an operation command signal is input to a terminal other than the remote input terminal 15 of the indoor unit, the start control of the outdoor unit that receives the start request signal immediately output by the start request unit is performed. The means starts the compressor immediately because the second timer 2 has already finished measuring time. This direct start mode is used to shorten the time required for shipping inspection at a factory or trial operation at an installation site. On the other hand, when the operation command signal is input to the remote input terminal 15, the activation requesting means
After the end of the time measurement, that is, after a lapse of a certain period of time after the indoor unit is turned on, the start request signal is output. In response to the start request signal output after the elapse of the predetermined time, the start control means of the outdoor unit immediately starts the compressor in the same manner as described above. An abnormal stop of the compressor is prevented. This standby start mode is used when pressure equalization in the refrigerant pipe is required.

On the other hand, when the operating compressor stops, at the same time, the second timer 2 of the outdoor unit starts measuring a certain time. If an operation command signal is input to any terminal of the indoor unit during this time measurement, the start request means (S4, S4
5) When the input terminal is not the remote input terminal 15, the start request signal is output immediately after the end of the fixed time measurement by the first timer 1 when the input terminal is not the remote input terminal 15. The activation control means of the outdoor unit that has received the signal determines whether or not the measurement of the predetermined time by the second timer 2 has ended, and activates the compressor when the determination is affirmative. Accordingly, when the compressor stops due to an instantaneous power failure or the like, an operation command signal is input to the indoor unit at the time of stop recovery, but if recovery is slow, the first unit starts by turning on the power of the indoor unit.
The compressor is started for the first time after the fixed time of the second timer, which starts when the compressor is stopped, after the timer has finished measuring a certain period of time, and even if the recovery is quick, so that the compressor malfunctions at the time of startup. Stoppage is prevented. Since the first and second timers 1 and 2 use internal ones of the control computers 6 and 8, it goes without saying that an external timer is not separately required. The activation control device according to the second aspect is applied to an air conditioner including an indoor unit having a microcomputer and an outdoor unit having a microcomputer.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. FIG. 1 is a schematic block diagram illustrating an example of the start-up control device for an air conditioner according to claim 1. This activation control device incorporates various means described later and first and second timers 1 and 2 in the microcomputer 3 and always short-circuits a contact 38 corresponding to the timer contact 18 in FIG. Except for the configuration, the configuration is the same as that of the activation control device described with reference to FIG. 4, and the same members as those in FIG. The first timer 1 is connected to a power supply 1 for the indoor unit.
At the same time as 2 is input, time measurement for a fixed time (for example, 3 minutes) is started (see S2 in FIG. 2). The second timer 2
Starts the timekeeping at the same time as the power supply 12 is turned on to the indoor unit (see S1), and starts timekeeping for a fixed time (for example, 3 minutes) at the same time as the operation stop of the compressor (see S9).

The microcomputer 3 also serves as input determination means, time measurement determination means, and start control means. When an operation command signal is input as the input determination means, the operation command signal is input to the remote input terminal 15. Judge whether or not
(See S4). Then, terminals other than the remote input terminal 15 (in this example, the remote control input terminal 14)
When it is determined that the operation command signal has been input to the remote control terminal 15, it is determined whether or not the measurement of the fixed time by the second timer 2 has been completed (see S 6), and the operation command signal is input to the remote input terminal 15. If it is determined that the first and second timers 1,
It is determined whether or not the time counting by 2 has been completed (see S5 and S6). Further, when the microcomputer 3 determines affirmative as the time counting determining means, it starts the compressor as the starting control means (see S7). Note that this activation control device includes an air conditioner such as a window type in which an indoor unit and an outdoor unit are integrated with one microcomputer, and an indoor unit having a microcomputer and an outdoor unit controlled by the microcomputer. Applied to air conditioners.

The startup control device having the above configuration controls the air conditioner in accordance with FIG. 2 as follows. If the compressor has not been started yet, the power failure automatic return wiring board 17
When the power supply 12 is turned on to the indoor unit in a state where the switch 4 of the microcomputer 3 is opened, the second timer 2 in the microcomputer 3 enters a time-out end state in step S1, while the first timer in the microcomputer 3
In step S2, the timer 1 starts measuring a certain time (3 minutes). Next, in step S3, the microcomputer 3 determines whether or not an operation command signal has been input. When it is determined that the operation command signal has been input, the process proceeds to step S4, where the operation command signal is transmitted to the remote input terminal 15. If it is determined whether or not the operation command signal has been input, the process proceeds to step S8. If the microcomputer 3 determines in step S4 that the operation command signal has not been input to the remote control input terminal 14 in step S4, the microcomputer 3 proceeds to step S6.
While it is determined whether or not the time counting by the second timer 2 has ended, if it is determined in the affirmative, that is, that the operation command signal has been input to the remote control terminal 15, the process proceeds to step S5, and the first
It is determined whether or not the time measurement by the timer 1 has been completed. When the determination is affirmative, the process proceeds to step S6, and it is determined whether or not the time measurement by the second timer 2 has been completed. Only when it is determined in step S6 that the timing has ended, the process proceeds to step S7 to start the compressor.

Accordingly, when an operation command signal is input from the remote controller 16 to the remote controller input terminal 14, the second timer 2 has already been timed in step S1. On the other hand, when the operation command signal is input to the remote input terminal 15 while the timer is being started, the first timer 1 stops counting time in step S5 even when the second timer 2 ends counting time, that is, the power is turned on (FIG. 2).
The compressor is started only after a lapse of a fixed time (3 minutes) from step S2). Thereby, at the time of a shipping inspection at a factory or a test run at an installation site, an operation command signal is input to the remote control input terminal 14 to omit a three-minute wait, thereby shortening the time. If an operation command signal is input to the control unit 15, it is possible to always wait for three minutes before starting, so that abnormal stoppage at the start of the compressor can be reliably prevented by equalizing the pressure in the refrigerant pipe.

On the other hand, when the compressor being operated is stopped, the microcomputer 3 determines in step S3 that the compressor is not running, proceeds to step S8, determines that the compressor was started last time, and proceeds to step S9. In step S1, the second timer 2 which has been in the timekeeping end state in step S1 is cleared, and time measurement for a certain time (3 minutes) is started simultaneously with the stop of the compressor. Next, at step S10, including the case where no operation command signal is input to the compressor and the determination at step S8 is NO.
Then, the compressor is maintained in the stopped state, but if the operation command signal is input to either of the input terminals 14 and 15 during the time counting, if the input is to the remote control input terminal 14, the process proceeds to step S.
At 6, it is determined whether or not the counting of the predetermined time by the second timer 2 has been completed. If the input is to the remote input terminal 15, it is determined in step S5 whether or not the first timer 1 has finished measuring a certain time (three minutes) since the power was turned on. , The same determination as described above in step S6 is performed. Then, the compressor is started only when a positive determination is made in step S6.

Therefore, when the driven compressor stops due to an instantaneous power failure or the like, an operation command signal is input to the remote input terminal 15 simultaneously with the restoration of the power failure as long as the switch 4 of the automatic power failure recovery wiring board 17 is open. Since the compressor is restarted only after a certain time (3 minutes) has elapsed by the second timer 2 from the stoppage of the compressor due to the power failure, the unevenness of the refrigerant pressure in the refrigerant pipe in the previous operation is reduced. This is uniformed during the three-minute standby, and abnormal stop due to locking of the compressor at the time of restart can be reliably prevented. When the switch 4 of the power failure automatic recovery wiring board 17 is closed, the microcomputer 3 is started at the same time as the power supply 12 is turned on, and the compressor is immediately started without time counting by the first and second timers in the microcomputer 3. As in the case where the operation command signal is input to the remote control input terminal 14 described above, it is possible to shorten the time required for a shipping inspection at a factory and a test run at an installation site.

FIG. 3 is a schematic block diagram showing an example of the start-up control device for an air conditioner according to the second aspect. The activation control device includes a control wiring board 5 for an indoor unit having the same configuration as the control wiring board 11 described with reference to FIG.
It comprises a control wiring board 7 for the outdoor unit and a signal line 9 connecting the wiring boards 5 and 7. Therefore, the same members as those in FIG. The microcomputer 6 of the control wiring board 5 for the indoor unit has a built-in first timer 1 which starts measuring a certain time (for example, 3 minutes) at the same time when the commercial power supply 12 is turned on to the indoor unit (see S2 in FIG. 2). . On the other hand, the control wiring board 7 for the outdoor unit is provided with a commercial power supply 12 for the outdoor unit.
And a microcomputer 8 which controls an outdoor unit including a compressor and also serves as start-up control means to be described later.
When the commercial power supply 12 is turned on to the outdoor unit, the timer ends (see S1), and at the same time as the compressor stops operating, the timer starts counting for a fixed time (for example, three minutes) (see S9).

The microcomputer 6 for the indoor unit determines whether or not the operation command signal is input to the remote input terminal 15 when the operation command signal is input to the control wiring board 5 as the activation request means ( If it is determined that the measurement is not to be performed, or if it is determined that the first timer 1 has finished measuring the predetermined time (see S5), the signal line 9 is output.
A start request signal for starting the compressor is output to the microcomputer 8 for the indoor unit via the microcomputer. On the other hand, the microcomputer 8 for the outdoor unit
Receives the start request signal as start control means,
It is determined whether or not the counting of the predetermined time by the second timer 2 has been completed (see S6), and when the determination is affirmative, the compressor is started (see S7). In addition,
This activation control device is applied to an air conditioner including an indoor unit having a microcomputer and an outdoor unit having a microcomputer.

The startup control device having the above configuration controls the air conditioner as follows in accordance with FIG. When the power supply 12 of the indoor unit is turned on when the compressor has not been started yet, the first timer 1 in the microcomputer 6 of the indoor unit starts measuring a fixed time (3 minutes) in step S2. On the other hand, when the power supply 12 of the outdoor unit is turned on, the second timer 2 in the microcomputer 8 of the outdoor unit is set to the time measurement end state in step S1.
Next, in step S3, the microcomputer 6 of the indoor unit determines whether or not an operation command signal has been input, and if it is determined that the operation command signal has been input, the process proceeds to step S4, where the operation command signal is remotely input. When it is determined whether or not the operation command signal has been input to the terminal 15, the process proceeds to step S8. If the microcomputer 6 of the indoor unit determines in step S4 that the operation command signal has been input to the remote control terminal 15, the start request signal has been received immediately, if the operation command signal has been input to the remote control input terminal 14, the determination has been negative. When it is determined, the process proceeds to step S5, where it is determined whether or not the time measurement by the first timer 1 has been completed. When it is determined that the time has been completed, a start request signal is output to the microcomputer 8 of the outdoor unit. Then, the microcomputer 8 of the outdoor unit that has received the activation request signal determines whether or not the counting of a predetermined time by the built-in second timer 2 has been completed in step S6. At S7,
Start the compressor.

Therefore, if the compressor has not been started yet and the operation command signal has been input to the remote control input terminal 14 of the control wiring board 5, the second timer 2 sets the step S1.
Is already in the timekeeping state, the compressor is started immediately after step S6, and when the operation command signal is input to the remote control terminal 15, even if the second timer 2 is in the timekeeping state, step In S5, the first timer 1 finishes counting, that is, the compressor is started only after a lapse of a fixed time (3 minutes) from turning on the power to the indoor unit (see step S2 in FIG. 2). Thereby, at the time of a shipping inspection at a factory or a test run at an installation site, an operation command signal is input to the remote control input terminal 14 to omit a three-minute wait, thereby shortening the time. If an operation command signal is input to the control unit 15, it is possible to always wait for three minutes before starting, so that abnormal stoppage at the start of the compressor can be reliably prevented by equalizing the pressure in the refrigerant pipe.

On the other hand, when the compressor being operated is stopped, the microcomputer 6 of the indoor unit determines in step S3 that the compressor is not operating.
Then, it is determined that the compressor has been started last time, the process proceeds to step S9, and the second timer 2 which has been in the timekeeping end state in step S1 is cleared, and the compressor is stopped for a certain period of time (3 minutes). ) Start timing. Next, the compressor is maintained in the stopped state in step S10, including the case where it is determined in step S8 that the operation command signal has not been input to the compressor yet, but during the time measurement, the control wiring board 5 is stopped.
When the operation command signal is input to either of the terminals 14 and 15, the microcomputer 8 of the indoor unit immediately proceeds to step S 4 when the input terminal is the remote control input terminal 14.
If the input terminal is the remote input terminal 15, the microcomputer 8 of the outdoor unit which has received the start request signal outputs the start request signal for the first time after the end of the measurement of the fixed time by the first timer 1 in step S5. It is determined whether or not the time measurement for a predetermined time (3 minutes) by the second timer 2 has been completed. If the determination is affirmative, the compressor is started in step S7.

Accordingly, when the driven compressor stops due to an instantaneous power failure or the like, an operation command signal is input to the remote input terminal 15 simultaneously with the stop recovery as long as the switch of the stop self-recovery wiring board 17 is opened. If the recovery is slow, the fixed time of the first timer 1 which starts when the indoor unit is turned on (3 minutes)
After the completion of the time measurement, and even if the recovery is early, the compressor is started again only after the fixed time (3 minutes) of the second timer 2 started by stopping the compressor, so that the refrigerant is not operated in the previous operation. Non-uniformity of the refrigerant pressure in the pipeline is made uniform during the three-minute standby, so that abnormal stop due to locking of the compressor at the time of restart can be reliably prevented. When the switch of the power failure automatic recovery wiring board 17 is closed, the microcomputer 8 starts the power supply 12 at the same time as the power supply 12 is turned on without performing the time measurement by the first timer 1 in the microcomputer 6 and the second timer in the microcomputer 8. The compressor can be started immediately, and the time for shipping inspection at the factory and test operation at the installation site can be shortened in the same manner as when the operation command signal is input to the remote control input terminal 14 described above.

As described above, according to the present invention, the timers incorporated in the microcomputers 3, 6, and 8 for controlling the indoor unit and the outdoor unit are controlled by the first and second timers for controlling the standby for a certain time at the time of starting.
Since they are used as the second timers 1 and 2, it is possible to wait for a certain period of time if necessary without separately preparing an external timer as described in the conventional example of FIG. In this way, it is possible to reliably prevent abnormal stoppage of the compressor at the time of restarting, while reducing the time required for the operation, reducing the cost of the indoor unit, and simplifying the on-site construction.

[0026]

As is apparent from the above description, claim 1
The air conditioner start-up control device is built into the air conditioner control computer together with a first timer that starts measuring a certain time simultaneously with turning on the power to the air conditioner, and turning on the power to the air conditioner At the same time, the timer ends, and a second timer is provided to start measuring a certain time at the same time as the compressor is stopped. The input determining means determines whether an operation command signal is input to the remote input terminal. If this determination is negative or positive, the timing determination means determines whether or not the timing of the second timer has ended, and whether or not the timing of both the first and second timers has ended. When the answer is affirmative, the start-up control means starts the compressor, so if there is no separate timer, wait for a certain period of time if necessary when restarting the compressor. Can be shipped inspection and While achieving time reduction and simplification of the costs and construction site of the indoor unit operation, it is possible to prevent the abnormal stop of at Restart compressor.

According to a second aspect of the present invention, there is provided an air conditioner activation control device,
A first timer which is built into the control computer of the indoor unit and starts time measurement for a certain period of time when the power is turned on, and a timer which is built in the control computer of the outdoor unit and is turned off when the power is turned on. A second timer is provided to start measuring a certain time at the same time as the operation is stopped, and the start request means determines whether the operation command signal is input to the remote input terminal when the operation command signal is input to the indoor unit. If the determination is negative, or if the determination is affirmative, and if the measurement of the predetermined time by the first timer has been completed, the outdoor unit outputs a start request signal for starting the compressor. In response to the activation request signal, the second
It is determined whether or not the timer has finished measuring a certain period of time.If the determination is affirmative, the start control means for starting the compressor is provided in the outdoor unit. When restarting, it is possible to enter standby for a certain period of time as necessary, shortening the time for shipping inspection and test operation, reducing the cost of indoor units and simplifying construction on site, and compressor malfunction at restart. Stoppage can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram showing one embodiment of a start-up control device for an air conditioner according to claim 1;

FIG. 2 is a flowchart showing a control flow of the activation control device.

FIG. 3 is a schematic block diagram showing an embodiment of the start-up control device for an air conditioner according to claim 2;

FIG. 4 is a schematic block diagram showing a conventional startup control device for an air conditioner.

FIG. 5 is a flowchart showing a control flow of the above-mentioned conventional startup control device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... 1st timer, 2 ... 2nd timer, 3, 6, 8 ... Microcomputer, 5 ... Control wiring board for indoor units, 7 ... Control wiring board for outdoor units, 9 ... Signal line 11 ... Control wiring board, 12 ... power supply, 14 ... remote control input terminal, 15 ... remote input terminal, 16 ... remote control, 17 ... power failure automatic return wiring board.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 11/02 102 F25B 1/00 341

Claims (2)

(57) [Claims] 1. A first timer (1) built in a control computer (3) of an air conditioner, which starts measuring a fixed time at the same time as turning on a power supply (12) to the air conditioner; Built in the control computer (3)
When the power supply (12) to the air conditioner is turned on, the timer ends. When the operation of the compressor is stopped, a second timer (2) starts measuring a certain time. An input judging means (S4) for judging whether or not the command signal has been inputted to the remote input terminal (15). If the input judging means (S4) judges no, the second timer (2) While it is determined whether or not the time measurement has ended, if the input determination means (S4) determines positive, the first timer (1) and the second timer (2)
(S5, S6) for judging whether or not the time measurement for a certain period of time has been completed, and a start-up control for starting the compressor when the time judgment means (S5, S6) determines affirmative. An activation control device for an air conditioner, comprising: means (S7). 2. A first timer (1) built in a computer (6) for controlling the indoor unit, which starts measuring a fixed time at the same time as turning on a power supply (12) to the indoor unit; It is built into the computer (8), and the timing is stopped when the power supply (12) is turned on to the outdoor unit.
A timer (2), when an operation command signal is input to the indoor unit, it is determined whether or not the operation command signal is input to the remote input terminal (15); And a start requesting means (S4, S5) for outputting a start request signal requesting the outdoor unit to start the compressor when the first timer (1) has finished measuring a predetermined time. It is provided in the outdoor unit, receives the start request signal, determines whether or not the second timer (2) has finished measuring a certain period of time, and starts the compressor when it is determined to be positive. An activation control device for an air conditioner, comprising activation control means (S6, S7).