KR0129677B1 - Airconditioner - Google Patents

Abstract

The present invention is to provide an air conditioner excellent in the fastness that can accurately inform the humidity condition to a person. The light receiving monitor unit 4 is located under the front of the indoor unit 1, and the humidity sensor 8 is built therein. Where the humidity detected by the humidity sensor 8 is in the low humidity range, the wet humidity range, and the high humidity range, the lamps 9a, 9b, and 9c of the humidity monitor 9 are displayed. However, it is determined whether the room temperature Ta detected by the room temperature sensor 28 is within a predetermined range centered on the remote control setting room temperature Ts by the remote controller 5, and the wet range is changed according to the determination. It is characteristic.

Description

Air conditioner

1 is a block diagram of a light receiving monitor according to an embodiment of the present invention.

2 is an external perspective view of an indoor unit according to the embodiment;

3 is a partial configuration diagram of an indoor unit for the embodiment.

4 is a schematic diagram of a refrigeration cycle for the embodiment.

5 is a configuration diagram of a control circuit according to the embodiment.

6 is a flow chart for explaining the operation of the embodiment.

7 is a flowchart for explaining the operation of the embodiment.

8 is a view showing a room temperature range discrimination condition for the embodiment;

9 is a graph showing the relationship between the defrosting operation and the room temperature for this embodiment.

* Explanation of symbols for main parts of the drawings

1: indoor unit 4: light receiving monitor

5: remoteton 6: light receiving unit

8: humidity sensor 9: humidity monitor

9a: Low humidity lamp 9b: Red humidity lamp

9c: High humidity lamp

The present invention relates to an air conditioner having a function of detecting indoor humidity.

There is an air conditioner having a humidity sensor for detecting indoor humidity and displaying the detected humidity of the humidity sensor on the front of the indoor unit. As a method of using the humidity display of the air conditioner, a humidifier may be prepared in the same room, and the humidifier may be operated by a person while watching the humidity display.

By the way, it is very difficult for a person to judge whether or not it is optimal to display the detected humidity value as it is. Therefore, the detection humidity is divided into a plurality of stages including a range of wetness so that a person can understand it.

However, when the detection humidity is displayed in a plurality of stages, even if a lamp indicating the wet range is lit, it may not be comfortable for a person. This is because the humidity range of the human body is affected by the comfortable room temperature.

For a while from the start of operation, it is difficult to display the proper humidity because the temperature difference between the vicinity of the air conditioner and the floor near the living area of the room is large.

When the operation of the indoor fan stops, such as when the operation is stopped based on the indoor temperature control, the humidity near the air conditioner may increase due to the dehumidification part attached to the indoor heat exchanger. Also in this case, proper humidity display becomes difficult.

When the operation resumes after the interruption, the dehumidifying part attached to the indoor heat exchanger is scattered near the air conditioner on the pillar of the indoor fan, so that proper humidity display is difficult for a while.

In the case of an air conditioner installed at a high place in the room, the temperature difference between the air conditioner and the floor near the living area of the room is different in the cooling and heating operation. In general, the temperature difference is small during the cooling operation, the temperature difference is large during the heating operation. The actual temperature detected by the humidity sensor is the absolute humidity, which is corrected by the room temperature to obtain a relative humidity, and the relative humidity is displayed. This relative humidity is shown as a difference in proportion to the above temperature difference in the high and low places of the room. The difference in relative humidity at these high and low temperatures was experimentally recognized as being the size of the temperature difference. Therefore, it is not appropriate to use the relative humidity obtained from the temperature detection at a high place as a display object.

In the heating operation, frost is gradually attached to the surface of the outdoor heat exchanger which acts as an evaporator, and in this state, the amount of heat exchange is insufficient, which interferes with operation. For this reason, defrosting operation | movement is performed as needed at the time of heating operation, and the defrost attached to the outdoor heat exchanger is removed. In this defrosting operation, measures are taken such as stopping the indoor fan so that cold air does not go out into the room. For this reason, it is difficult to display proper humidity as in the above-mentioned operation stop.

The present invention has been made in view of the above circumstances, and an object of the present invention is to accurately inform a person of a humidity condition in a room.

According to an aspect of the present invention, an air conditioner according to the first aspect includes a humidity sensor for detecting indoor humidity in an air conditioner for controlling operation so that an indoor temperature becomes a set room temperature, and at least two other humidity sensors for detecting the humidity of the humidity sensor in addition to an appropriate range. Means for informing the range, and means for changing the humidity range in accordance with the difference between the indoor temperature and the set indoor temperature.

The air conditioner according to the second aspect of the present invention is provided with operation means for changing the humidity range in the air conditioner for controlling the operation so that the room temperature becomes the set room temperature.

In the air conditioner according to the third aspect of the present invention, the air conditioner detects the indoor humidity and informs at least two other ranges in addition to the wet range. have.

In the air conditioner according to the fourth aspect of the present invention, an air conditioner that detects indoor humidity and notifies the detected humidity to at least two ranges outside of the wet and wet ranges, while the indoor fan is stopped and started after the indoor fan is blown. The predetermined time is provided with means for changing the form of the notification from the usual.

The air conditioner according to the fifth aspect of the present invention is installed in a high place in the room, and detects the indoor humidity, and air-cools the wet range in the air conditioner to notify the detected humidity in at least two ranges other than the wet range. Means for changing to a city and a heating operation are provided.

Means for maintaining a notification state before defrosting operation during defrosting operation in an air conditioner in which the air conditioner according to the sixth aspect of the present invention detects indoor humidity and informs the detected humidity in at least two ranges other than the wet range. It is provided.

In the air conditioner according to the first aspect of the present invention, the indoor humidity is detected by a humidity sensor, and the detected humidity is known in at least two ranges in addition to the wet range. However, the humidity range changes according to the difference between the room temperature and the set room temperature.

In an air conditioner according to the second aspect of the present invention, an indoor humidity is detected by a humidity sensor, and the detected humidity is known in at least two ranges in addition to the wet range. However, the humidity range changes according to the difference between the room temperature and the set room temperature. In addition, the wet range can be changed by the operation means.

In the air conditioner according to the third aspect of the present invention, indoor humidity is detected, and the detected humidity is known in at least two ranges other than the wet range. From the start of operation until a predetermined time, a notification of a form different from the normal is made.

In the air conditioner according to the fourth aspect of the present invention, room humidity is detected and known in at least two ranges other than the wet range. However, notifications of a form different from normal are performed during the predetermined time after the indoor fan is stopped and after starting.

In the air conditioner according to the fifth aspect of the present invention, the indoor humidity is stopped, and this detection humidity is known in at least two ranges other than the wet range. The wet range is only changed during cooling operation and heating operation.

In the air conditioner according to the sixth aspect of the present invention, room humidity is detected, and the detected humidity is known in at least two ranges other than the wet range. However, during defrosting operation, the notification state of the defrosting operation is maintained.

EMBODIMENT OF THE INVENTION Hereinafter, one Example of this invention is described with reference to drawings.

In FIG. 2, 1 is an indoor unit of the said air conditioner, and has the inlet port 2a in the front panel 2, and the blower port 3 in the lower part. In the lower part of the indoor unit 1, a light receiving monitor 4 is provided at a position adjacent to the jet port 3. 5 is a wireless remote control manipulator (hereinafter, abbreviated as remote control) for setting various operating conditions, and transmits the setting contents to the indoor unit 1 by infrared light. As shown in FIG. 1, the light receiving monitor unit 4 includes a light receiving unit 6, a humidity barrier window 7, a humidity sensor 8, a humidity monitor 9, and an operation monitor 10.

The light receiving unit 6 receives the infrared light transmitted to the shutter by the remote controller 5. The humidity sensor 8 detects the humidity (absolute humidity) of the room through the humidity barrier window 7. The humidity monitor 9 displays the detected humidity of the humidity sensor 8 in at least two other ranges, for example, low humidity, humidity, and high humidity, in addition to the humidity range, and the low humidity lamp 9a and the wet humidity lamp 9b. ) And a high humidity lamp 9c. The operation monitor 10 lights in a color in response to the operation mode when the built-in lamp is in operation and goes out when the operation is stopped. In addition, a light emitting diode is used for this monitor.

As shown in FIG. 3, the front panel 2 of the indoor unit 1 can be opened and closed by a person, and the filter 11 and the humidity correction switch 12 which are operating means are provided inside. The filter 11 is for removing dust and odors from the intake air and is free to be attached and detached. The humidity compensation switch 12 is for changing humidity and is operated by a person as needed.

The indoor unit 1 is connected to the outside outdoor unit by piping and connecting lines, and the refrigeration cycle of FIG. 4 is comprised in both units. That is, 20 is an outdoor unit and has a capacity variable compressor 21. The outdoor heat exchanger 23 is connected to the earth hole of the compressor 21 via the four-way valve 22. The indoor heat exchanger 25 is connected to the outdoor heat exchanger 23 through an expansion valve 24 at the place where the pressure reducer is located, and the indoor heat exchanger 25 is connected to the compressor 21 through the four-way valve 22. It is connected to the intake port.

The indoor fan 26 is installed near the outdoor heat exchanger 23 and the indoor fan 27 near the indoor heat exchanger 25. In addition, an indoor temperature sensor 28 is installed in the suction air passage formed by the indoor fan 27. The heat exchanger temperature sensor 29 is installed in the outdoor heat exchanger 23.

The control circuit is shown in FIG. The indoor unit 1 has an indoor control unit 30 composed of a microcomputer and its peripheral circuits. The light receiving unit 6, the humidity sensor 8, the humidity monitor 9, the operation monitor 10, the indoor fan motor 27M, the indoor temperature sensor 28, and the timer 31 are connected to the indoor control unit 30. do. It is also connected to the indoor control commercial alternating current power supply 40. The outdoor control unit 50 of the outdoor unit 20 is connected to the indoor control unit 30 via the power line ACL and the serial signal line SL.

The outdoor fold section 50 is composed of a macro computer and its peripheral circuits. The four-way valve 22, the outdoor fan motor 26M, the heat exchanger temperature sensor 29, and the inverter circuit 51 are connected to the outdoor control unit 50. The inverter circuit 51 rectifies the voltage of the power supply line ACL, converts it to the front of the predetermined frequency (and level) according to the instruction of the outdoor controller 50, and outputs it. This output becomes the drive electric power of the compressor motor 21M.

Here, the indoor control unit 30 and the outdoor control unit 50 transmit data in synchronization with power supply voltage through the serial signal line SL, and suppress the air conditioner, and have the following functional means.

[1] The refrigerant discharged from the compressor 21 flows in the direction of the solid arrow shown in FIG. 4, thereby driving a cooling cycle. Means for performing the operation or the dehumidification operation, and also in the dehumidification operation, the air passing through the indoor heat exchanger 25 is reheated by the reheating means (not shown) and is brought to normal temperature and discharged to the room.

[2] The discharged refrigerant of the compressor 21 flows in the direction of the broken arrow shown in FIG. 4 by switching the four-way valve 22, thereby forming a heating cycle, thereby condensing the indoor heat exchanger 25 and the outdoor unit. Means for functioning the heat exchanger (23) as an evaporator and performing a heating operation.

[3] During the heating operation, when the detection temperature of the heat exchanger temperature sensor 29 becomes less than a predetermined value, for example, 0 ° C. or less, the four-way valve 22 is switched to defrost the outdoor heat exchanger 23. Means of execution.

[4] The operation frequency F of the compressor 21 (inverter circuit 51) in the direction in which the difference disappears when the difference between the detection temperature Ta of the indoor temperature sensor 28 and the set indoor temperature Ts of the remote control is determined during operation. Means for controlling the output frequency).

[5] A means for correcting the detected humidity (relative humidity) of the humidity sensor 8 by the detected temperature Ta of the indoor temperature sensor 28 to obtain a relative humidity and collecting it as the indoor humidity Hs.

[6] Means for displaying (notifying) the indoor humidity Hs in at least two ranges other than the humidity monitor roll density range.

[7] Means for changing the displayed humidity range according to the difference between the room temperature Ta and the remote control setting room temperature Ts.

[8] A means for changing the displayed humidity range by operating the humidity compensation switch 12.

[9] A predetermined time (for example, 5 minutes) from the start of operation means for changing the display form of the humidity monitor 9 from the usual.

[0010] Means for varying the display form of the humidity monitor (9) during a predetermined time after stopping and starting the indoor fan (27).

[11] A means for changing the displayed wet range to cooling operation and heating unit exhibition.

[12] Means for maintaining the display state of the humidity monitor 9 before the defrosting operation during defrosting operation.

Next, the operation of the configuration will be described with reference to FIGS. 6 and 7.

When the operation is stopped, the timer 31 is reset and all the lamps of the humidity monitor 9 go out.

When the operation is started, the timer 31 is set and the time count is started. Since the timer 31 counts five minutes and then times off, all the lamps 9a, 9b, 9c of the humidity monitor 9 are turned on. In other words, since the temperature difference between the interior unit 1 and the floor near the living area of the room is large and proper humidity display is difficult for a while from the start of operation, a different form of display such as lighting of all lamps is performed. Therefore, inappropriate humidity information is not transmitted to humans.

When the timer 31 times out, the detection humidity (absolute humidity) of the humidity sensor 8 is corrected to the detection temperature Ta of the room temperature sensor 28 and taken up as the indoor humidity (relative humidity) Hs. At this time, the detected indoor temperature Ta and the indoor temperature range discrimination condition of FIG. 8 previously stored in the internal memory are compared so that the indoor temperature Ta is in the area A within a predetermined range centered on the remote control set indoor temperature Ts. If not, it is determined whether it exists in the B area outside the predetermined range. In addition, in the predetermined range, an error of 0.5 ° C is ensured when the room temperature Ta rises and falls so that chattering of the determination result does not occur.

If the determination result is the area B, it is determined whether the indoor humidity Hs is in the wet range based on the humidity range condition of Table 1 stored in the internal memory, or is out of the wet range.

That is, the humidity range in the B region is formed by the lower limit value Hs1 = 30% and the upper limit value Hs2 = 70% during the cooling and dehumidification operation, and the lower limit value hs1 = 25% and the upper limit value Hs2 = 65% during the heating operation.

In the above Table 1, as in starting operation, Ta is closer to the target Ts and Ta is closer to the target Ts than in the B region in which the Ta is away from the target Ts. This makes it possible to display an appropriate humidity without being affected by the room temperature Ta for the wet range.

Moreover, in the case of the cooling operation where the temperature difference is smaller than that during the heating operation in which the temperature difference between the indoor unit 1 and the vicinity of the upper surface of the living area of the room becomes large, the wet range is widened up and down. Therefore, an appropriate humidity display can be performed despite the difference between heating and cooling.

And since the comfort of humidity varies to some extent according to a person, the humidity correction switch 12 is provided inside the front panel 2 which must cope with it. When the humidity correction switch 12 is set on the + side, the detected indoor humidity Hs is corrected in the decreasing direction by 10%. The correction in this decreasing direction is the same as the shift in the wet range to the high humidity side. When the humidity correction switch 12 is set to-, the detected indoor humidity Hs is corrected in the increasing direction by 10%. Correction in this increasing direction is the same as shifting the wet range to the low side. In this way, the humidity range can be changed according to the taste of the person, so that the shape and size of the room in which the indoor unit 10 is installed can be coped with and have excellent versatility.

When the room temperature Ta reaches the remote control setting room temperature Ts, the operation of the compressor 21 is stopped. When the operation of the indoor fan 27 is stopped when this operation is stopped, all the lamps 9a, 9b, and 9c light up as in the operation stop. In other words, when the indoor fan 27 is stopped, dehumidifying water adhering to the indoor heat exchanger 25 may be scattered, and thus, notification of inappropriate humidity information is avoided by the whole lighting.

In the heating operation, however, frost gradually adheres to the surface of the outdoor heat exchanger 23, which acts as an evaporator. In this state, the amount of heat exchange is insufficient, resulting in lower heating efficiency. Thus, when the outdoor heat exchanger 23 detection temperature is lowered to 0 ° C. by the heat exchanger temperature sensor 29, the four-way valve 220 is switched to start reverse cycle defrosting.

When defrosting of the reverse cycle, the hot refrigerant discharged from the compressor 21 is supplied to the outdoor heat exchanger 23 as it is, and the defrost attached to the outdoor heat exchanger 23 by the heat of the high temperature refrigerant is removed. Thereafter, when the detection temperature of the heat exchanger temperature sensor 29 rises to a predetermined value, the four-way valve 22 returns to the original state, and reverse cycle defrosting is completed to return to the heating operation. This defrosting operation lasts 5 to 6 minutes, but since the heating is stopped and measures such as stopping the indoor fan 27 to prevent cold air from entering the interior are taken, the interior as shown in FIG. Immediately after the start of humidity, the humidity is greatly reduced and rises immediately. In the defrosting operation in which the humidity change is severe, the display state of the humidity monitor 9 before the defrosting operation is maintained as it is.

In addition, in the said practical example, only the structure of the air conditioner main body was demonstrated, it is also applicable to the air conditioner provided with the humidifier. In this case, the display of the humidity monitor 9 can also be considered to control the humidifier.

In the above embodiment, at least two humidity ranges are displayed in addition to the humidity range, but the number of display of the humidity range is not limited and can be appropriately set.

As described above, according to the present invention, since a means for changing the humidity range or a means for varying the form of the notification is provided, it is possible to provide a reliable air conditioner that can accurately notify the humidity condition of the room to a person. have.

Claims (6)

An air conditioner for controlling operation so that an indoor temperature becomes a set room temperature, comprising: a humidity sensor for detecting indoor humidity, a means for notifying the detected humidity of the humidity sensor in at least two ranges other than a wet range; And a means for changing the humidity range in response to a difference from the set room temperature. The air conditioner according to claim 1, wherein operation means for changing the humidity range is provided. An air conditioner for detecting indoor humidity and for notifying the detected humidity in at least two ranges other than the wet range, wherein a predetermined time from the start of operation is provided with means for changing the form of the notification from the usual. . In an air conditioner that detects indoor humidity and announces the detected humidity in at least two ranges other than the wet range, a predetermined time after stopping and starting the indoor fan for blowing the air-conditioning air into the room usually takes the form of the notification. Air conditioner, characterized in that it comprises a means for different. (Two-time correction) An air conditioner installed at a high place in the room and detecting indoor humidity, and informing the detected humidity in at least two ranges other than the wet range, wherein the wet range is used for cooling operation and heating unit display. An air conditioner, comprising means for changing. An air conditioner for detecting indoor humidity and for notifying the detected humidity in at least two ranges other than the wet range, wherein the air conditioner includes means for maintaining a notification state before the defrost operation during defrost operation. .