JP2002098385A - Air conditioner having refrigerant-heating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify operation when resuming operation after stopping the operation upon detecting an earthquake using an earthquake-detecting device, to report to a user by detecting the earthquake even if the operation is at halt by detecting a trouble, and further to reduce power consumption during stop. SOLUTION: When the operation is stopped by detecting the earthquake by the earthquake-detecting device, re-operation is enabled by performing operation using a remote-control device or other operation switches at a lapse of certain time at least two times. Also, even if a trouble is detected and the operation is at halt, the detection of the earthquake is reported to the user. Further, the energization of equipment is partially broken by a power cutoff device from the end of cooling operation to the next operation start.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner provided with a refrigerant heating device.

[0002]

2. Description of the Related Art FIG. 1 is a refrigeration cycle diagram of a conventional technique. During the heating operation, the four-way valve 2 is set to the solid line side in FIG. 1 and the compressor 1 is operated, and the compressor 1, the four-way valve 2, the indoor heat exchanger 6,
The refrigerant is circulated in the order of the two-way valve 8 and the refrigerant heating device 9.
Here, the indoor blower (not shown) and the refrigerant heating device 9 are operated to radiate heat from the indoor heat exchanger 6, and the refrigerant heating device 9 absorbs heat to heat the room. The refrigerant heating device 9 heats the refrigerant by using kerosene as fuel, and other devices use city gas or LP gas as fuel. Earthquake detector 1
Reference numeral 5 is for detecting an earthquake by opening a contact when the acceleration of shaking caused by the earthquake becomes equal to or greater than a set value.

The fuel supply judging device 12 is a level sensor for detecting the liquid level of kerosene in the oil leveler 10 for temporarily storing kerosene. If the liquid level continues to be lower than the set value, no fuel is supplied. Is determined. In the case of using city gas or LP gas as fuel, there is also one that detects the supply of fuel by detecting the gas supply pressure.

In an air conditioner equipped with such a refrigerant heating device 9, when an earthquake is detected by the earthquake detection device 15, the operation is stopped and the display device 17 informs the user that the earthquake detection device 15 has been operated. In addition, by not accepting the operation of the remote control device 19 and other switches, the user is urged to inspect the air conditioner body and the fuel kerosene and gas pipes for damage due to the earthquake. , To prevent accidental restarting.

[0005] In this case, in order to restart the operation, the power supply to the equipment is temporarily turned off by disconnecting the outlet (not shown) of the equipment or turning off the breaker of the power supply, and then plugging in the outlet of the equipment or The power supply to the equipment is restarted by turning on a circuit breaker of the power supply, etc.
6 and the outdoor control device 13 could not be restarted without returning to the initial state.

Conventionally, an air conditioner equipped with such a refrigerant heating device cannot be operated if the operation cannot be continued due to a problem, for example, if the fuel supply determining device 12 determines that fuel is not supplied. In some cases, the operation is stopped to prevent abnormal combustion immediately before running out of fuel, and the user is notified by the display device 17 that fuel is not being supplied. In this case, since the air conditioner stops, there is no other problem after that,
The notification was not changed until the vehicle was restarted.

Further, conventionally, an air conditioner provided with such a refrigerant heating device 9 heats the compressor 1 by heating the compressor 1 by a method such as applying a weak current in an open phase to the motor of the compressor 1 to heat the compressor. This prevents the refrigerant from stagnating in the compressor 1 at the time, and prevents the refrigerating machine oil from being diluted with the refrigerant and causing poor lubrication at startup. Therefore, the outdoor unit was always energized even during the stop.

[0008]

However, in the above-mentioned conventional technology, there is a problem that the operation is complicated when an earthquake is detected by the earthquake detecting device and stopped and restarted.

[0009] Further, the above-mentioned conventional technique has a problem in that when a malfunction is detected and the operation is stopped, even if an earthquake is detected by an earthquake detection device, a user cannot know this. I was

Further, the above-mentioned conventional technique has a problem that power consumption during stoppage is high.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to simplify an operation for detecting an earthquake with an earthquake detecting device, stopping the operation, and restarting the operation.

It is another object of the present invention to notify a user of the detection of an earthquake when an earthquake is detected by the earthquake detection device even when the operation is stopped due to detection of a malfunction.

Another object of the present invention is to reduce power consumption during stoppage.

[0014]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is to temporarily stop the operation when an earthquake is detected by an earthquake detection device, and to restart the operation by a remote control device or the like after a certain period of time. The operation is made possible. In addition, when an earthquake is detected by the earthquake detection device, the operation is temporarily stopped, and the operation of the remote operation device or another operation switch is performed twice or more to enable the re-operation. Thereby, when detecting an earthquake and stopping and restarting, the operation of restarting is simplified.

Further, the present invention is capable of notifying that an earthquake has been detected when an earthquake is detected by the earthquake detection device even when the operation is stopped due to detection of a defect. Thus, even when the operation is stopped due to the detection of the malfunction, the user can be notified that the earthquake has been detected.

Further, in the present invention, the power supply to the equipment is partially cut off by the power cutoff device from the end of the cooling operation to the start of the next operation. As a result, power consumption during stoppage is reduced.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) The configuration of a refrigeration cycle and the principle of a heating operation are the same as those of the prior art. Refrigerant heating device 9
Burns kerosene and absorbs heat from the combustion exhaust gas into the refrigerant.

FIG. 2 is a flowchart when the earthquake detection device 15 of the present embodiment operates and restarts.

When the heating operation is started by the heating operation signal from the remote control device 18, the compressor 1, the refrigerant heating device 1
2. The heating operation is performed by operating the electromagnetic pump 11, the indoor blower, opening the two-way valve 8, and setting the four-way valve 2 to the heating side.

At this time, when the earthquake detecting device 15 detects an earthquake and operates, the compressor 1, the refrigerant heating device 12, the electromagnetic pump 11, and the indoor blower are stopped, and the two-way valve 8 is closed to operate the air conditioner. Is stopped, and the code No. corresponding to the operation of the earthquake detection device 15 is displayed on the display device 17 of the indoor unit to notify the user that the earthquake detection device 15 has been operated by the earthquake and the air conditioner has been stopped.

Until the set time elapses after the operation of the earthquake detecting device 15, the operation signal of the remote control device 19 is not received, and the user checks whether the air conditioner body and the kerosene supply pipe are damaged by the earthquake. Prompt to confirm.

When the set time elapses after the operation of the earthquake detecting device 15, only the stop operation signal of the remote control device 19 is accepted.
At 7, the display of the code No. corresponding to the operation of the earthquake detection device 15 is terminated, and the state becomes the same as the normal stop state.

Here, when the heating operation signal of the remote control device 19 is further received, the heating operation is restarted.

As described above, in the present embodiment, when the earthquake detecting device 15 detects and operates an earthquake, the heating operation is stopped, and the user is notified that the earthquake detecting device 15 is operating and the air conditioner is stopped. Notify and after the set time has passed
By operating 9 twice, the heating operation is restarted.

Therefore, in the present embodiment, the earthquake detecting device 1
If the 5 detects an earthquake and operates and stops operation, it prompts the user to check the air conditioner body and the kerosene supply pipe for damage caused by the earthquake, and re-executes carelessly due to erroneous operation. Driving can be prevented, and the re-driving operation in this case can be easily performed.

(Embodiment 2) The configuration of the refrigeration cycle, the principle of heating operation, and the operation when the earthquake detection device 15 operates and restarts are the same as those in Embodiment 1.

In this embodiment, there is provided a fuel supply judging device 12 for detecting the liquid level of the kerosene in the oil leveler 10 for temporarily storing the kerosene by a level sensor. It is a flowchart in case supply of kerosene stops or runs short. Oil leveler 10
When the liquid level in the tank becomes lower than the set value for a certain period of time, the heating operation is stopped and the fuel is not supplied, and the code No. corresponding thereto is displayed on the display device 17 to notify the user. are doing.

The reason why the heating operation is stopped when the supply of kerosene is stopped or insufficient is that when the kerosene in the oil leveler 10 runs out and the electromagnetic pump 11 sucks air, the load is reduced and a large amount of air is discharged. Then, kerosene in the oil supply pipe between the refrigerant heating device 9 and the refrigerant heating device 9 is suddenly supplied to the refrigerant heating device 9, so that the fuel becomes excessive and abnormal combustion occurs. Therefore, in order to prevent this, the heating operation is stopped before the kerosene in the oil leveler 10 completely runs out.

By informing the user that the kerosene has run out, the user is required to take measures such as refueling the kerosene tank.
At 9 the heating operation is resumed.

Here, when the earthquake detection device 15 detects an earthquake and operates, the display on the display device 17 is displayed.
Changed to the code No. corresponding to the operation, and
Is the same operation as.

Since an earthquake is an external factor, it may occur even when the air conditioner is stopped. However, a fault that occurs due to an internal factor such as a failure of a component may occur if the air conditioner is stopped. Since the possibility of occurrence is low, and even if such a defect is detected later, the possibility of erroneous detection is high, the notification content is not changed.

Also, in this embodiment, since the content of detecting a defect other than the kerosene running out is a fault to be notified prior to the notification of the detection of the earthquake, it is stopped by a fault other than the running out of kerosene. In this case, even if an earthquake is detected, the notification content is not changed. However, when a failure that has no priority over the notification of the detection of an earthquake is detected and stopped, the notification may be changed when an earthquake is detected.

Further, in this embodiment, the content of the notification is changed to the detection of an earthquake. However, the notification of a failure that has occurred previously and the notification of the detection of an earthquake are alternately performed, or the content of the notification is operated by operating a switch or the like. Either one may be selected and displayed.

As described above, in the present embodiment, even when the operation is stopped due to the detection of a fault, if the earthquake detection device 12 detects an earthquake, it is notified that an earthquake has been detected. be able to.

(Embodiment 3) The configuration of a refrigeration cycle and the principle of a heating operation are the same as those in Embodiment 1. After the heating operation is stopped, the power cutoff device 18 is kept energized, and when the outside air temperature is low and the temperature of the compressor 1 is low, a weak current flows through the motor of the compressor 1 in the open phase to heat the compressor 1. 1 to prevent the refrigerant from stagnating in the compressor 1 at a low temperature, thereby preventing the refrigerating machine oil from being diluted with the refrigerant and causing poor lubrication at startup.

FIG. 4 is a flowchart of the cooling operation according to the present embodiment. After the cooling operation is stopped, the energizing circuit breaker 18 is energized for a set time to prevent the temperature overshoot of the equipment and initialize the equipment, and thereafter the energizing circuit breaker 18 is cut off to cut off the energization to the outdoor unit. . When performing the cooling operation, since the outside air temperature is high, the refrigerant does not stagnate in the compressor 1 without causing the compressor 1 to be heated and the lubrication failure does not occur even if the outdoor unit is not energized and the compressor 1 is not heated. As described above, since the energization to the outdoor unit is stopped after the cooling operation is stopped, the power consumption during the stop can be reduced.

[0038]

According to the first aspect of the present invention, when an earthquake is detected by the earthquake detection device, the operation is temporarily stopped, and after a predetermined time has elapsed, the operation can be restarted by a remote control device or the like.
In this way, when an earthquake is detected and stopped and restarted, the user is encouraged to check the air conditioner body and the kerosene supply pipe for damage due to the earthquake, and to simplify the restart operation. can do.

According to a second aspect of the present invention, when an earthquake is detected by the earthquake detecting device, the operation is temporarily stopped, and a re-operation can be performed by performing an operation with a remote control device or another operation switch twice or more. It was made. Thereby, when stopping and restarting after detecting an earthquake, careless restarting due to erroneous operation can be prevented, and the restarting operation can be simplified.

According to the fourth aspect of the present invention, even when a malfunction is detected and the operation is stopped, if an earthquake is detected by the earthquake detection device, it can be notified that the earthquake has been detected. Thus, even when the operation is stopped due to the detection of a failure, if the earthquake is detected by the earthquake detection device, the user can be notified that the earthquake has been detected.

According to a sixth aspect of the present invention, the power supply to the equipment is partially cut off by the power cutoff device from the end of the cooling operation to the start of the next operation. This makes it possible to reduce power consumption during stoppage.

[Brief description of the drawings]

FIG. 1 is a refrigeration cycle diagram of a conventional air conditioner.

FIG. 2 is a control flowchart according to the first embodiment of the present invention.

FIG. 3 is a control flowchart according to a second embodiment of the present invention.

FIG. 4 is a control flowchart according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Compressor 2 Four-way valve 3 Outdoor heat exchanger 4 Check valve 5 Decompressor 6 Indoor heat exchanger 7 Check valve 8 Two-way valve 9 Refrigerant heating device 10 Oil leveler 11 Electromagnetic pump 12 Fuel supply judgment device 13 Outdoor control device 14 Kerosene pipe connection port 15 Earthquake detection device 16 Indoor control device 17 Display device 18 Power cutoff device 19 Remote control device

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F25B 13/00 341 F25B 13/00 341D (72) Inventor Kazuto Nakatani 1006 Kadoma, Kazuma, Osaka Prefecture Matsushita, Matsushita Inside Electric Industrial Co., Ltd. (72) Inventor Nobuoki Shima 1006 Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Naoto Fujita 1006, Kadoma Kadoma, Kadoma City, Osaka Prefecture F-term in Matsushita Electric Industrial Co., Ltd. (Reference) 3L060 AA02 AA03 CC08 CC19 DD01 EE01 3L061 BB01 BC05 BD03 3L092 MA01 NA03 NA14 PA13

Claims (6)

[Claims] 1. An apparatus comprising: a refrigerant heating device for heating a refrigerant; and an earthquake detection device for detecting vibration caused by an earthquake. When an earthquake is detected by the earthquake detection device, the operation is temporarily stopped, and after a certain period of time, a remote operation device or An air conditioner provided with a refrigerant heating device, which can be restarted by another operation switch. 2. An apparatus comprising a refrigerant heating device for heating a refrigerant and an earthquake detection device for detecting vibration caused by an earthquake, wherein when an earthquake is detected by the earthquake detection device, the operation is temporarily stopped, and a remote control device or other operation switch is provided. An air conditioner equipped with a refrigerant heating device, which can be re-operated by performing the operation according to (2) or more. 3. The air conditioner equipped with a refrigerant heating device according to claim 1, wherein the operation can be restarted by performing an operation with a remote control device or another operation switch two or more times. 4. An apparatus according to claim 1, further comprising a refrigerant heating device for heating the refrigerant and an earthquake detection device for detecting vibration caused by the earthquake, wherein the earthquake detection device detects the earthquake even when the operation is stopped due to detecting a failure. In such a case, an air conditioner equipped with a refrigerant heating device can be notified that an earthquake has been detected. 5. A fuel supply judging device for judging whether the fuel of the refrigerant heating device is supplied, and when the fuel supply judging device judges that the fuel is not supplied, the operation is stopped and the fuel is supplied. An air conditioner equipped with a refrigerant heating device, characterized in that when the earthquake is detected by the earthquake detection device during this notification, the notification is changed to the notification of earthquake detection. 6. A refrigerant heating device for heating a refrigerant and an energization cutoff device for partially interrupting energization of the device, and partially energizing the device from the end of the cooling operation to the start of the next operation. An air conditioner provided with a refrigerant heating device.