JPH08296870A - Air conditioner - Google Patents

Abstract

PURPOSE: To obtain an air conditioner wherein a compressor is stopped at the time when a drain water tank is filled with water, indication of full water is made after a while, the drain water tank is thus taken out after the whole of drain water dropping down after the stop of operation is put therein, and therefore disposal of the drain water can be conducted completely. CONSTITUTION: A compressor and a blowing fan are normally connected to a power source E by a full water detecting switch 22 being closed on the contact A side and are operated for dehumidification. When a drain water tank is filled up with drain water, the full water detecting switch 22 is switched over to the contact B side through the intermediary of a float so as to make a timer 30 operate, and a full water indicator is lighted by a timer contact 27 which is closed after a prescribed time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner that dehumidifies and cools a room to create a comfortable environment, and in particular, an air conditioner equipped with a notification device suitable for notifying an appropriate treatment time of drain water. Regarding the machine.

[0002]

2. Description of the Related Art Conventionally, an air conditioner is used for dehumidifying or cooling a room. One example of such an air conditioner is a dehumidifier for dehumidifying the room. And
In this type of dehumidifier, for example, as shown in Japanese Utility Model Publication No. 58-50183, a compressor is arranged in the lower part of the main body, and a mounting recess formed in the side part of the main body while avoiding the compressor. A drain water tank that receives and stores dehumidified water is freely drawn out in the place, and a refrigeration cycle is configured with the compressor above, and an evaporator, a condenser, and a blower that perform the dehumidifying function are arranged in a line, and Cool the indoor air sucked from the air suction port with an evaporator to dehumidify the moisture in the indoor air to dehumidify and introduce it into the drain water tank, while heating the dehumidified cool air using the heat dissipation of the condenser. Then, the dehumidified air that has been warmed to the room temperature and dried is blown into the room from the air outlet.

If dehumidifying water gradually accumulates in the drain water tank (hereinafter, dehumidifying water is referred to as drain water) due to the dehumidifying operation and becomes full, drainage of the dehumidifying water becomes necessary. For example, a float is placed above the drain water tank. Equipped with a full-water detection switch, and when the full-water detection switch detects full water, the control unit stops the operation of the compressor and at the easy-to-see location on the main unit to notify that the water is full. The full water indicator lamp is lit. Therefore, the user, seeing the lighting of the full water indicator lamp, removed the drain water tank and processed the waste water.

[0004]

As described above, when the drain water is full, the compressor is stopped and the full water indicator lamp is turned on. However, conventionally, when the control device receives a full water signal from the full water detection switch. The controller was turning on the full water indicator lamp at the same time when the operation of the compressor was stopped. Therefore, even if the drain water is dripping from the evaporator even after the compressor stops operating, if the user removes the drain water tank almost at the same time as when the compressor is stopped, it will spill from the evaporator. Since the drain water cannot be received by the drain water tank, there is a problem that the waste water treatment becomes incomplete, and the inside of the device is wet with spilled water droplets, which may cause a malfunction or become unsanitary.

The present invention has been made to solve such a problem, and the display control is performed so that the full water indicating lamp is lit for a predetermined period of time after the compressor is stopped. It is an object of the present invention to provide an air conditioner which enables drain water tank to be removed after draining water completely, and makes drain water treatment reliable and easy.

[0006]

In order to achieve the above-mentioned object, an air conditioner according to claim 1 of the present invention is an air intake port and an air outlet port formed in a main body containing a compressor, and the air conditioner. An evaporator that cools the air sucked in by an air blower from the suction port to condense the moisture contained in the air, a condenser provided on the leeward side of the evaporator, and receives the moisture dripping from the evaporator. For this purpose, a drain water tank detachably attached to the bottom of the main body, a full water detection switch that operates when the drain water is full in the drain water tank, and a full water indicator that lights up to indicate that the drain water is full And when full water is detected by the full water detection switch,
And a control device for controlling the compressor so that the compressor is stopped and the full water indicator is turned on after a lapse of a predetermined time after the stop.

The air conditioner according to a second aspect of the present invention cools air sucked by a blower fan from the air suction port and the air blowing port formed in the main body having a built-in compressor, and the air suction port. An evaporator for condensing water contained in the air, a condenser provided on the lee side of the evaporator, and a drain detachably attached to the lower portion of the main body for receiving the water dripping from the evaporator. A water tank, a full water detection switch that operates when the drain water tank is full of drain water, an alarm that notifies the fullness of the drain water by voice, and when full water is detected by the full water detection switch And a control device for controlling the compressor so that the compressor is stopped and the alarm is sounded a predetermined time after the stop.

Further, in the air conditioner according to a third aspect of the present invention, it is controlled by a full water indicator or an alarm to display a warning after a predetermined time after the compressor is stopped. At that time, the predetermined time is set to be at least the draining time at which the drain water finishes dropping from the evaporator.

Further, the air conditioner according to claim 4 is
An air inlet and an air outlet formed in a main body containing a compressor; an evaporator that cools the air sucked by a blower fan from the air inlet to condense moisture contained in the air; A condenser provided on the leeward side of the evaporator, and a drain water tank detachably attached to the lower portion of the main body for receiving the water dripping from the evaporator,
A full water detection switch which operates when the drain water is full in the drain water tank, a full water display for displaying the full water of the drain water by lighting or an alarm for notifying by voice, and a full water by the full water detection switch. When detected,
And a controller that controls the compressor to stop and the fan to stop and the full water indicator to light or the alarm to ring after a predetermined time after the stop.

[0010]

According to the configuration of claim 1 of the present invention, in the air conditioner of the present invention, when the drain water generated in the air conditioning operation is full in the drain water tank, the full water indicator for notifying that is Since the display is controlled so that it lights up after a predetermined time has passed after the compressor stops operating, all drain water dripping from the evaporator is accepted by the time the user sees the full water indicator lighting and removes the drain water tank. It is being drained.

As a result, since the conventional full water indicator lights up simultaneously with the compressor being stopped when the water is full, the drain water tank which is immediately removed can prevent the drain water from being spilled. The wastewater treatment can be done reliably and easily.

According to the second aspect of the present invention, the alarm informs the user that the water is full by voice, so that the user can take out the drain water tank without worrying about water dripping. Can be detected even when the device is away from the equipment such as the dehumidifier, so that the drain water tank can be removed at a good timing, and the drain water can be efficiently treated.

Further, according to the structure of claim 3,
After stopping the compressor due to full water, drain water from the evaporator is completely dripping.At least after the draining time has passed, the full water indicator is turned on and an alarm is issued to alert the drain water. It is possible to take out the drain water tank after entering the drain water tank without spilling. Therefore, the drain water treatment can be performed more completely.

According to the configuration of claim 4,
When the drain water is full, only the compressor is stopped and the blower fan is kept running.Therefore, the wind causes the drain water to drip from the evaporator quickly, ensuring that the drain water will reach the drain water tank in a short time. Can be accommodated.

[0015]

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

As shown in FIGS. 1 and 3, in the dehumidifier of this embodiment, the entire equipment is covered by a main body case formed by combining a front case 1 and a rear case 2. In the front case 1, an inlet 4 for sucking indoor air is formed in the upper part of the front surface, and a mounting recess 7 is formed in the lower part on the right side for taking in and out a drain water tank 6 for storing drain water that has been dehumidified by the evaporator 5 and condensed. Has been done. A switch S for driving and stopping the main body is provided on the upper surface of the front case 1.
An operation panel 8 is provided on which W and an indicator LED indicating the operating state thereof are arranged.

Further, a drain water tank 6 is provided on the operation panel 8.
A full water indicator 9, which is an indicator lamp that is lit when the drain water is full, is provided to inform the user of when to remove the drain water tank 6 for drain water treatment. Further, an alarm 9B such as a buzzer may be provided to warn the user by sound that the drain water is full. Further, both the full water indicator 9 and the alarm 9B such as a buzzer may be provided. On the other hand, the rear case 2 combined with the front case 1 has an outlet 10 for dehumidified air formed on the upper surface thereof, and an air passage 11 formed inside the main body so as to connect the outlet 10 and the suction port 4 to each other. Further, an evaporator 5, a condenser 12, a fan motor 13 and a blower fan 14 are sequentially arranged. Further, a compressor 15 that forms a refrigeration cycle together with the evaporator 5 and the condenser 12 is arranged in the lower part of the main body.

Therefore, with this structure, after the air containing a large amount of moisture is sucked from the air suction port 4 by the rotation of the blower fan 14, the moisture contained in the air is cooled by passing through the evaporator 5 to cool the air. Is condensed to dehumidify the air.

Here, the dehumidified air passes through the condenser 12 provided on the leeward side of the evaporator 5, and at the time of this passage, the condenser 12 is cooled. After passing through the condenser 12, the dehumidified air is blown out from the air outlet 10 formed on the upper surface of the rear case 2 as indicated by an arrow in a state where the dehumidified air becomes high in temperature due to heat exchange with the high-temperature and high-pressure refrigerant. Has become. Further, moisture in the air condensed in the evaporator 5 is received by a drain pan 16 provided below the evaporator 5, and then drips from a drain port 16a formed in the drain pan 16 to form a front portion of the main body. The drain water tank 6 is attached to the mounting recess 7 so as to be freely drawn out.

By the way, the drain water tank 6 is formed of a transparent resin material and has a box-like shape with an open upper surface as shown in FIG. 8, and a bottom portion near the front portion thereof can be pulled out by inserting fingers. A handle recess 17 is formed. And
The upper surface opening of the drain water tank 6 is swingably supported by a support shaft 18, and normally tilts downward to the left as shown in FIG. 4, and when the drain water is full, it projects downward at one end. A float 20 that tilts downward to the right as shown in FIG. 5 is provided due to the floating of the floating portion 19 in the formed interior.

Further, a lever 21 for pivoting the upper end is provided above the inner part of the mounting recess 7 of the drain water tank 6 when the float 20 tilts up and down, the tip end of the float 20 pivots left and right. Has been. Further, a full water detection switch 22 such as a micro switch which is turned on / off by the lever 21 is provided. A guide water passage 24 is formed on the upper surface of the float 20 to receive the drain water and guide it from the outlet 23 to the drain water tank 6.

The float 2 is filled with drain water.
When the full water detection switch 22 is activated by 0, basically, the operation of the compressor 15 is stopped and the full water indicator 9 is turned on. However, in the present invention, the full water indicator 9 stops the operation of the compressor 15 at this time. After that, after a certain period of time, it is turned on so that the water droplets spilling from the evaporator 5 are completely put in the drain water tank 6 during this time, and the user sees the lighting of the full water indicator 9 to turn on the drain water tank 6. When removing
Try to make sure that the drainage is completely finished,
Water drops are prevented from spilling out after removing the drain water tank 6 as in the conventional case.

The control device will first be described using the microcomputer shown in FIG. 6. When the full water signal S ₀ is input from the full water detection switch 22 to the microcomputer 26, the microcomputer 26 causes the compressor 15 to turn off. Control line L ₁
Then, the control signal S ₁ for stopping the compressor is immediately output to stop the operation of the compressor 15. Further, the stop signal S ₂ is simultaneously output to the control line L ₂ to the blower fan 14 to stop the blower fan 14 as well. However, the control line L ₃ for the full water indicator 9 is made to output the control signal S ₃ for lighting after a lapse of a fixed time t from the time when the control signal S ₁ for stopping the compressor is output. Moreover, the microcomputer 26 is controlling.

Here, the fixed time t is set to be a time sufficient to completely drain the drain water from the evaporator 5. The set time may be set appropriately according to the dehumidifying capacity of the dehumidifier, and may be set to, for example, 3 minutes. As a result, after all the drain water that has spilled after the compressor 15 is stopped has entered, the drain water tank 6
Since it can be taken out, it can be surely processed without spilling drain water.

In the above control, the compressor 15 and the blower fan 14 are stopped at the same time when the water is full, but the compressor 15 is stopped, but the stop signal S ₂ is sent to the blower fan 14. The microcomputer 26 controls the output so that the output is delayed for a fixed time. In this way, the wind generated by the continuously rotating blower fan 14 promotes the dropping of drain water from the evaporator 5, and the drain water can be quickly stored in the drain water tank 6. The stop signal S ₂ to the blower fan 14 may be output at the same time as the control signal S ₃ for lighting the full water indicator 9 or within the time t until the control signal S ₃ is output.

Furthermore, not the full water indicator 9 but the alarm 9B for issuing an alarm such as a buzzer is similarly filled with water, and the ringing signal S ₄ is given after a predetermined time (t) after the compressor 15 is stopped. It is also possible to output to the control line L ₄ and sound the alarm 9B. In this case, since the sound of full water is notified by sound, the user can notice immediately without having to be near the dehumidifier, and the drain water tank can be taken out in a timely manner for easy handling.

FIG. 7 shows a control device according to another embodiment,
The compressor 15 and the blower fan 14 are connected to the power source E through the normally closed contact A of the full water detection switch 22. Further, a timer (T) 30 is connected to the normally open contact B side of the full water detection switch 22 and is connected to the power source E. Then, the full water indicator 9 is connected between the power supplies E via the timer contact 27 of the timer (T) 30. 28 is an operation switch.

With this circuit configuration, the drain water tank 6
When the drain water is not sufficiently accumulated in the compressor, the full water detection switch 22 is on the normally closed contact A side by the lever 21 pushed by the float 20 as shown in FIG.
The blower fan 14 is operated to dehumidify. Eventually,
When the drain water 6 is filled with the drain water, the lever 21 is disengaged from the float 20 and the full water detection switch 22 is switched to the normally open contact B side as shown by the dotted line state, as shown in FIG. As a result, the compressor 15 and the blower fan 14 are powered by the power source E.
Immediately disconnected from and stopped. On the other hand, the timer T is energized by switching the contacts of the full water detection switch 22, and the timer (T) 30 operates to close the timer contact 27 after a predetermined time (for example, 3 minutes). Therefore, the full water indicator 9 lights up after a predetermined time after the compressor 15 is stopped, and the user is informed that the drain water tank 6 is full of drain water and it is time to remove the drain water for drain water treatment. To be done. Therefore, also in this case, the full water indicator 9 is turned on with a sufficient margin time for accepting the drain water that has drained after the compressor 15 is stopped, so that the drop of water droplets after the drain water tank 6 is taken out is eliminated.

Of course, even in the control device of this circuit configuration, an alarm 9B such as a buzzer which emits an alarm sound is added through the timer contact 27B which is closed after a predetermined time (t) after the compressor is stopped by the timer T. Naturally, it is also possible to notify that the water is full.

[0030]

As described above, according to the first aspect of the present invention, in the air conditioner of the present invention, when the drain water generated during the air conditioning operation becomes full in the drain water tank, the full water is notified. The display controls the display so that it lights up after a predetermined time has passed after the compressor stops operating.Therefore, the drain dripping from the evaporator by the time the user sees the full water indicator lighting and removes the drain water tank. All water is received and drained. This eliminates the problem of drain water spilling due to the drain water tank that is removed immediately because the conventional full water indicator lights up when the compressor stops when it is full. Can be done reliably and easily.

According to the second aspect of the invention, the alarm informs the user that the water is full with a voice, so that the user can take out the drain water tank without worrying about dripping water. Since it is possible to know even if it is away from the equipment such as the dehumidifier, the drain water tank can be removed at a good timing, and the drain water can be efficiently treated.

Further, according to the structure of claim 3,
After stopping the compressor due to full water, drain water from the evaporator is completely dripping.At least after the draining time has passed, the full water indicator is turned on and an alarm is issued to alert the drain water. It is possible to take out the drain water tank after entering the drain water tank without spilling. Therefore, the drain water treatment can be performed more completely.

Further, according to the structure of claim 4, when the drain water is full, only the compressor is stopped and the blower fan is kept operating. The dripping is accelerated, and the drain water can be reliably stored in the drain water tank in a short time, and the drain water treatment work becomes more efficient.

[Brief description of drawings]

FIG. 1 is a side sectional view of a dehumidifier that is an example of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a front view of the dehumidifier shown in FIG.

FIG. 3 is a plan view of the dehumidifier.

FIG. 4 is a side sectional view of a main part of the dehumidifier for explaining the operation of the float when the drain water is not full and the operation of the full water switch operated by the float.

FIG. 5 is a side cross-sectional view of a main part of the dehumidifier for explaining the action of the float when the water is full and the operation of the water full switch that operates on the float.

FIG. 6 is a block circuit diagram of a control device that controls lighting of a full water indicator after the compressor is stopped when the water is full.

FIG. 7 is a circuit diagram of a control device according to another embodiment for performing the same control as in FIG.

FIG. 8 is an external perspective view of a drain water tank.

[Explanation of symbols]

 4 Suction port 5 Evaporator 6 Drain water tank 9 Full water indicator 10 Air outlet 14 Blower fan 15 Compressor 20 Float 21 Lever 22 Full water detection switch 30 Timer

Claims (4)

[Claims] 1. An air inlet and an air outlet formed in a main body containing a compressor, and air sucked by a blower fan from the air inlet is cooled to condense moisture contained in the air. An evaporator, a condenser provided on the leeward side of the evaporator, a drain water tank detachably attached to the lower portion of the main body for receiving water dripping from the evaporator, and a drain water tank in the drain water tank. A full water detection switch that operates when the drain water is full, a full water indicator that indicates by lighting the full drain water, and when the full water is detected by the full water detection switch, stops the compressor, and An air conditioner, comprising: a control device that controls the full water indicator to turn on after a predetermined time after the stop. 2. An air inlet and an air outlet formed in a main body containing a compressor, and air sucked by a blower fan from the air inlet is cooled to condense moisture contained in the air. An evaporator, a condenser provided on the leeward side of the evaporator, a drain water tank detachably attached to the lower portion of the main body for receiving water dripping from the evaporator, and a drain water tank in the drain water tank. A full water detection switch that operates when the drain water is full, an alarm that notifies the drain water full by voice, and when the full water is detected by the full water detection switch, stops the compressor,
An air conditioner comprising: a control device that controls the alarm to ring after a predetermined time after the stop. 3. The air conditioner according to claim 1 or 2, wherein the predetermined time is set to be at least a draining time at which drain water finishes dropping from the evaporator. 4. An air inlet and an air outlet formed in a main body having a built-in compressor, and air sucked by a blower fan from the air inlet is cooled to condense moisture contained in the air. An evaporator, a condenser provided on the leeward side of the evaporator, a drain water tank detachably attached to the lower portion of the main body for receiving water dripping from the evaporator, and a drain water tank in the drain water tank. A full water detection switch that operates when the drain water is full, a full water display that displays the full water of the drain water by lighting or an alarm that notifies by voice, and when full water is detected by the full water detection switch, A control device for stopping the compressor, and for stopping the blower after a predetermined time after the stop, lighting the full water indicator, or controlling the alarm to ring. An air conditioner characterized by being provided.