JPH05223278A - Air conditioner - Google Patents

Abstract

PURPOSE:To provide an air conditioner in which odorless air can be diffused even after it is not used for a long period. CONSTITUTION:An air diffuser 13 is closed by a cover 14 before the air is diffused. A circulation passage for communicating an air suction port 13 with an air diffuser 2a is formed, the air is then passed to the passage, and deodorized by a deodorizing filter 5 provided in an air passage from the diffuser 2a to a heat exchanger 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a dehumidifier, an air cleaner,
The present invention relates to an air conditioner such as an air conditioner.

[0002]

2. Description of the Related Art Conventionally, in air conditioners such as dehumidifiers, air purifiers and air conditioners, deodorizing air taken in from an air inlet is provided between the air inlet and the air outlet. Some have a deodorizing function of deodorizing with a filter and blowing out from an air outlet.

For example, in a dehumidifier which is one of air conditioners, a blower fan is rotated to suck in air containing a large amount of moisture from an air suction port, and then the air is cooled by an evaporator (evaporator). Dehumidification is carried out by dew condensation of the water content therein. At this time, a deodorizing filter is provided between the air suction port and the evaporator so that the air sucked from the air suction port is deodorized by the deodorization filter.

[0004]

However, such a conventional air conditioner is often not used for a long period of time because the season of use is almost fixed. Therefore, during this period of nonuse, the surface of the evaporator is not used. Molds develop and bacteria adhere.

Therefore, if the air conditioner is started to be used after it has not been used for a long period of time, odorous air will be blown out from the blow-out port due to these molds and bacteria at first. There was a problem that it was uncomfortable with.

An object of the present invention is to provide an air conditioner which can blow out odorless air even after it has not been used for a long period of time.

[0007]

According to the present invention, air sucked from an air suction port is deodorized by a deodorizing filter provided in an air path from the air suction port to the heat exchanger, and then passed through the heat exchanger, In an air conditioner having a deodorizing function of ejecting the deodorized air that has undergone heat exchange from an air outlet, a lid is provided to the air outlet so that the air outlet can be opened and closed, and the lid closes the air outlet. In such a case, a circulation path that connects the air inlet and the air outlet together with the lid is formed.

Further, air is sucked from the air suction port by a blower fan, the air is deodorized by a deodorizing filter provided in the air path from the air suction port to the heat exchanger, and then the air is passed through the heat exchanger to remove heat. An air conditioner having a deodorizing function of blowing out the deodorized air that has been exchanged and is provided with a control means for reversing the blower fan for a predetermined time only when the power switch is turned on immediately after the power is turned on. Is.

[0009]

With this structure, before the air is blown out, the air outlet is closed by the lid to form a circulation path connecting the air inlet and the air outlet, and then the air is passed through this circulation path. Deodorize with a deodorizing filter provided between the air inlet and the heat exchanger. On the other hand, only when the power switch is turned on immediately after the power is turned on, the blower fan is reversely rotated for a predetermined time, and during this time, air is sucked from the air outlet and deodorized by the deodorizing filter.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of a dehumidifier which is an example of an air conditioner according to an embodiment of the present invention. In the figure, 1 is a suction duct provided in an air suction port 2a formed on the front surface of the main body 2, 3 is a dehumidifying fan, 4 is a motor for rotating the dehumidifying fan, and 5 is a face facing the suction duct 1. Is a deodorizing filter containing activated carbon, and air containing a large amount of moisture is sucked from the air suction port 2a by the dehumidifying fan 3, and this deodorizing filter 5
It is designed to enter and be deodorized. The deodorizing filter 5 also serves to prevent dust and the like from entering the main body 1.

Reference numeral 6 denotes an evaporator provided between the deodorizing filter 5 and the dehumidifying fan 3, and 7 denotes a condenser provided behind the evaporator. The air deodorized by the deodorizing filter 5 is cooled by this evaporator. It condenses water to dehumidify.

The moisture in the air condensed in the evaporator 6 drops into a drain pan 8 provided below the evaporator 6, passes through a drain pipe 9 of the drain pan 8 and accumulates in a dehumidifying tank 10. There is.

Reference numeral 11 denotes a dehumidifying air guide path for guiding the air blown from the dehumidifying fan 3 to an exhaust port 12 provided above, and 13 an air blowout port provided so as to face the exhaust port 12, The air dehumidified through the evaporator 6 passes through the dehumidifying fan 3 and the dehumidifying air guide path 11, is discharged from the exhaust port 12, and then passes through the air outlet 13 provided on the upper surface of the main body 2 to enter the room. It is supposed to be blown out.

A closing member 14 which is a lid for closing the air outlet 13 is rotatably attached to the air outlet 13. Here, this closing member 14
When rotating to close the air outlet 13, the communication duct 1 for communicating the space between the exhaust outlet 12 and the air outlet 13 with the space between the duct 1 and the deodorizing filter 5.
5 forms an air circulation path together with 5. 16
Is a driving operation unit provided with a power switch and the like.

Next, the deodorizing operation of the dehumidifier thus constructed will be described.

When the dehumidifier is not used for a long period of time and then starts to be used, first a lever (not shown) provided outside the main body 2 is manually operated to rotate the closing member 14, The air outlet 13 is closed as shown in FIG. Thereby, even if the dehumidifying fan 3 rotates, the air containing odor is not blown out into the room.

After that, when the power switch of the operation unit 16 is turned on and the dehumidifying fan 3 is rotated, the air containing odor passes through the dehumidifying fan 3 and the dehumidifying air guide path 11,
After being discharged from the exhaust port 12, it is blown out into the space between the duct 1 and the deodorizing filter 5 through the circulation path formed by the closing member 14 and the communication duct 15.

The air blown into this space enters the deodorizing filter 5 to be deodorized, and again the dehumidifying fan 3 and
It passes through the dehumidified air guide path 11 and is discharged from the exhaust port 12. In this way, the air outlet 13 is closed and the air is circulated in the main body 1, whereby the air can be deodorized.

After a lapse of a predetermined time, when the lever is manually operated to rotate the closing member 14 in the opposite direction to open the air outlet 13, the deodorized air is blown out. It does not give a person an unpleasant odor.

After opening the air outlet 13, as shown by the arrow in FIG.
The air containing a large amount of moisture sucked from a enters the deodorizing filter 5 to be deodorized, is then dehumidified through the evaporator 6, and is blown out into the room through the exhaust port 12 and the air outlet 13.

Moisture in the air condensed in the evaporator 6 drops into the drain pan 8, passes through the drain pipe 9 of the drain pan, and accumulates in the dehumidifying tank 10.

As described above, when the use is started after a long period of non-use, the air outlet 13 is closed by the closing member 14, then the air containing odor is circulated and the deodorizing filter 5 removes this air. Can be deodorized.

By the way, in the above description, the case of circulating the air containing an odor to deodorize is explained, but the present invention is not limited to this, and the odor is contained by changing the rotation direction of the dehumidifying fan. The air can also be deodorized.

Next, another embodiment of the present invention will be described with reference to the drawings.

FIG. 3 is a cross-sectional view of a dehumidifier according to another embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 1 indicate the same or corresponding parts.

In the figure, reference numeral 17 is an air outlet duct provided at an air outlet 13 formed on the rear surface of the main body 2. Reference numeral 18 denotes a motor for driving the dehumidifying fan 3, and the motor 18 rotates in the normal and reverse directions based on a control signal from a control device (not shown).

Here, when the motor 18 rotates forward based on the control signal of the control device, air is sucked from the air suction port 2a as shown by an arrow A, deodorized by the deodorizing filter 5, and then dehumidified by the evaporator 6. The air is discharged from the air outlet 13 through the dehumidifying fan 3 into the room.

When the motor 18 rotates in the reverse direction based on the control signal from the control device, the air is sucked from the air outlet 13 as shown by the arrow B, passes through the dehumidifying fan 3 and the evaporator 6, and is removed by the deodorizing filter 5. After being deodorized, it is blown out into the room from the air suction port 2a.

Note that this control device starts its operation when the power outlet is re-inserted and the main body 2 is turned on when it is not used for a long period of time, etc., and then the power switch is turned on. When this is detected, a control signal for rotating the motor 18 in the reverse direction is output to the motor 18 for a predetermined period.

Next, the deodorizing operation of the dehumidifier according to another embodiment configured as described above will be described with reference to the flowchart showing the operation of the control device shown in FIG.

Since the dehumidifier that has not been used for a long period of time is used, when the power is supplied to the main body 2 by inserting the outlet (Y in judgment 50), the control device starts operating. Then, after that, when the power switch is turned on (Y in judgment 51), the control device detects this and outputs a control signal to the motor 18.
The motor 18 is reversely rotated for a predetermined time (process 52).

As a result, since the dehumidifying fan 3 rotates in the reverse direction, the air containing odor in the main body 2 passes through the evaporator 6, enters the deodorizing filter 5, is deodorized, and is blown out from the air suction port 2a. By rotating the motor 18 in the reverse direction so that the air in the main body 2 passes through the deodorizing filter 5, the air can be deodorized.

Then, when a predetermined time elapses (determination 5
3), the control device outputs a control signal for rotating the motor 18 in the normal direction to the motor 18 to rotate the motor 18 in the normal direction (process 54). As a result, the dehumidifying fan 3 rotates in the normal direction, the air is sucked from the air suction port 2a and deodorized by the deodorizing filter 5, and then dehumidified through the evaporator 6 and the air outlet 13 through the dehumidifying fan 3. Is blown into the room from.

As described above, when the use is started after a long period of non-use, the motor 18 is rotated in the reverse direction so that the air containing odor can be passed through the deodorizing filter 5 to be deodorized.

As shown in FIG. 5, the conventional dehumidifier is provided with a humidity sensor 20 on the upper surface of the control board 19 provided outside the air path indicated by the arrow or on the suction duct 1. There is one in which the drive of the motor 18 is automatically controlled by a control device according to the output of 20. Reference numeral 21 is a cable for transmitting the detection signal of the humidity sensor 20 to the control board 19.

However, when the humidity sensor 20 is provided outside the air path, there is no inflow of air, so accurate humidity measurement cannot be performed, and when it is provided in the suction duct 1, the suction duct 1 is not provided. Since water droplets that have condensed on the evaporator 6 and the evaporator 6 are applied to the humidity sensor 20, the humidity sensor 20
May be defective.

Therefore, in order to solve such a problem, the humidity sensor 20 is arranged between the evaporator 6 and the suction duct 1 and fixed by a rib 8a protruding from the upper surface of the drain pan 8. As a result, the humidity sensor 20
Is located in the air path, and the humidity of the air can be detected.

Further, in the suction duct 1, a roof 1a having a shape as shown in FIG. 6 is placed on the upper surface of the humidity sensor 20 so that water drops falling from the suction duct 1 and the evaporator 6 do not hit the humidity sensor 20. Provide it so that it touches. A rib 22 that is cut out obliquely extends on the lower surface of the center of the roof 1a. The rib 22 allows the humidity sensor 20 to be pushed into a predetermined position together with the drain pan 8 during assembly. There is.

As a result, the water droplets falling from the suction duct 1 and the evaporator 6 will fall on the roof 1a, and the humidity sensor 20 will not get wet. Further, since the roof 1a plays a role of suppressing the upward movement of the humidity sensor 20, the humidity sensor 20 does not fall off from the rib 8a of the drain pan 8. In addition,
The water droplets that drop onto the roof 1a travel along the roof 1a and fall onto the drain pan 8, pass through the drain pipe 9 of the drain pan 8 and collect in the dehumidifying tank 10.

[0041]

As described above, according to the present invention, before the air is blown out, the air outlet is closed by the lid to form the circulation path, and then the air is passed through the circulation path and blown out by the deodorizing filter. The air can be deodorized. On the other hand, only when the power switch is turned on immediately after the power is turned on, the blower fan is reversed for a predetermined time, and during this time, air can be sucked from the air outlet and deodorized by the deodorizing filter.

As a result, odorless air can be blown out even after the air conditioner has not been used for a long period of time.
It is possible to prevent the user from feeling uncomfortable.

[Brief description of drawings]

FIG. 1 is a cross-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 view showing an air flow when the air outlet of the dehumidifier is closed by a closing member.

FIG. 3 is a cross-sectional view of a dehumidifier according to another embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the control device of the dehumidifier control device according to another embodiment of the present invention.

FIG. 5 is a cross-sectional view of a dehumidifier equipped with a humidity sensor.

FIG. 6 is an enlarged front view of a location where a humidity sensor is attached.

[Explanation of symbols]

 2a Air suction port 4,18 Motor 5 Deodorizing filter 13 Air outlet 14 Closing member 15 Communication duct

Claims (2)

[Claims] 1. The air sucked from the air suction port is deodorized by a deodorizing filter provided between the air suction port and the heat exchanger, and then passed through the heat exchanger to be heat-exchanged and deodorized. In an air conditioner having a deodorizing function of blowing out the air from an air outlet, the lid is provided to the air outlet so as to be openable and closable, and the lid is closed when the lid closes the air outlet. At the same time, an air conditioner is characterized in that a circulation path connecting the air intake port and the air outlet port is formed. 2. A blower fan sucks air from an air suction port, deodorizes this air by a deodorizing filter provided between the air suction port and a heat exchanger, and then passes the heat exchanger to remove heat. In an air conditioner having a deodorizing function of blowing out the deodorized air that has been exchanged and has been deodorized, a control means for reversing the blower fan for a predetermined time is provided only when the power switch is turned on immediately after the power is turned on. An air conditioner characterized by.