JP3059840B2 - 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, and more particularly, to a floor type packaged air conditioner.

[0002]

2. Description of the Related Art Generally, in an office or a building, a floor type packaged air conditioner which is directly installed on a floor is used.

[0003] In this type of air conditioner, a heat exchanger and a blower for blowing air toward the heat exchanger are arranged in the main body of the air conditioner, which is disclosed in, for example, Japanese Utility Model Publication No. 1-2499. As described above, there is known a device in which a humidifier for providing humidity to blast air subjected to heat exchange as necessary is provided.

In such a humidifier of an air conditioner, generally,
Water droplets tend to adhere to the spray tube that sprays the mist droplets, and the water droplets attached to the spray tube fall down to the humidifier body side through the spray tube.

[0005]

However, among the water droplets attached to the spray cylinder, the water droplets attached to the inside of the spray cylinder return to the water tank of the humidifier even on the humidifier body side, but there is no problem.
The water droplets attached to the outside of the sprayer propagate directly through the cylinder wall and enter the electric circuit and the control unit of the humidifier body, causing a failure and adversely affecting the electric circuit and the control unit. There is a problem of giving.

In such a case, it is conceivable to provide a drain pan for the spray cylinder in the humidifier and discharge water drops falling along the outside of the spray cylinder. However, the configuration of the humidifier, that is, the air conditioner The whole configuration becomes complicated.

Therefore, an object of the present invention is to provide a simple configuration,
It is an object of the present invention to provide an air conditioner that can prevent water droplets attached to the outside of a spray cylinder from traveling along the cylinder wall and dropping on a humidifier body.

[0008]

In order to achieve the above-mentioned object, the present invention is to obliquely dispose a rear surface of a main body in a main body.
A heat exchanger that is, in the air conditioner having a blower for blowing air to the back of the heat exchanger, the back of the heat exchanger
On the side, the humidifier body and extending upward from this humidifier body
Humidifier that sprays fog droplets from the spray cylinder
A receiver for receiving water droplets outside the spray tube of the humidifier, and contacting the receiver with the back of the heat exchanger.
Water droplets received in the pan to the back of the heat exchanger.
Characterized in that was.

[0009]

In the air conditioner of the present invention, mist is sprayed from the spray cylinder of the humidifier onto the air blown by heat exchange to humidify the air. In a humidifier, when water droplets fall on the outside of the spray tube, the water droplets attached to the outside of the spray tube fall along the tube and fall. However, the water droplets are received by a tray provided outside the spray tube. The water droplets received by the tray are guided to the heat exchanger, further transmitted through the heat exchanger, guided to the drain pan of the heat exchanger, and discharged out of the air conditioner.

[0010]

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

As shown in FIGS. 1 to 3, an air conditioner 1 according to the present embodiment mainly includes a main body 3 made of sheet metal, a heat exchanger 5 disposed in the main body 3, 5 and a humidifier 28 that imparts humidity to the wind to be blown.

The main body 3 is provided with a frame plate 11 in which one thin metal plate is bent in a substantially U-shape in cross section, and a front panel 13 (FIGS. 2 and 3) is provided on one open side of the frame plate 11. ), And a top plate 15 and a bottom plate 17 are mounted on the frame plate 11 and below, respectively.

On the rear part 6 of the main body 3, from the upper end where the top plate 15 is arranged to the position where the blower 7 is attached,
Is affixed.

As shown in FIG. 3, the front panel 13 is located below the main body 3 and has an air inlet 14 for sucking air.
Is formed, and a blow-out panel 13b, which is located above the main body 3 and is formed with a blow-out port 16 for blowing out the air after heat exchange, is provided between the suction panel 13a and the blow-out panel 13b. Is provided with a central panel 13c.

The refrigerant is introduced into the heat exchanger 5 and exchanges heat with the air sucked into the air conditioner 1. At the lower end of the heat exchanger 5, dew condensation of the heat exchanger 5 occurs. A drain pan 21 is provided for receiving the drain pan. A drain hose 21 a is connected to the drain pan 21.
The drain water received at step (1) is discharged to the outside of the air conditioner 1.

From the heat exchanger 5, refrigerant pipes 23 and 25 extend to near the inlet 37 of the blower 7. A union 24 connected to a refrigerant pipe of an outdoor unit (not shown) is screwed into an end of each of the refrigerant pipes 23 and 25. In this embodiment, the electrical box 9 is disposed on the front panel side. Since the depth (width) W of the main body is large by the size of the electrical component box 9, a sufficient space for the union 24 and the connection work is secured.

The heat exchanger 5 is disposed obliquely in the air passage 27 defined by the main body 3 and the inner panel 13d, so as to reduce the wind noise generated by the blown air. Have been. The heat exchanger 5 is arranged straight from the front panel 13 to the rear section 6.
Therefore, the inclination angle is determined by the depth W of the main body. Generally, the smaller the inclination angle of the heat exchanger 5 is, the lower the wind noise is. Therefore, the longer the depth W is, the lower the wind noise is. In this regard, in this embodiment, since the depth W of the main body is larger than that of the related art and the inclination of the heat exchanger 5 is increased by the size of the electrical box 9, the wind noise of the wind passing through the heat exchanger 5 is reduced. Can be smaller.

The refrigerant pipes 23 and 25 extend to the suction port 37 side of the blower 7 and are arranged in pressure contact with the blower 7, respectively. And 25 are suppressed.

The blower 7 is a so-called centrifugal blower,
A single suction fan case 29 having a suction port 37 formed on the front side, and an impeller 31 arranged in the fan case 29;
And an electric motor 33 for driving the impeller 31, and the air sucked from the suction port 37 is sent to the heat exchanger 5 through the discharge port 35.

A humidifier 28 is provided on the back side of the heat exchanger 5 for humidifying the air to be blown, and humidifies the wind to be blown into the room as needed during heating or the like. I have.

The humidifier 28 is a so-called ultrasonic humidifier. As shown in FIG. 1, the humidifier 28 includes a humidifier main body 26 and a spray cylinder 30 extending upward from the humidifier main body 26. The tray 30 is provided with a tray 32 for guiding water droplets flowing outside the spray tube 30 to the heat exchanger 5.

The humidifier body 26 of the humidifier 28 has a known structure as an ultrasonic humidifier, for example, Japanese Utility Model Publication No. 53-48.
As in the device disclosed in Japanese Patent No. 539, a water tank in which an ultrasonic transmitter and an ultrasonic vibrator are arranged, and a cover provided with a spray tube 30 and a wind introduction pipe 39 in an upper part of the water tank. Mist is scattered from the water in the water tank by the vibration energy of the ultrasonic vibrator, and the mist is sprayed onto the spray cylinder 3
It is derived from 0. The humidifier body 2
Although not shown in detail, an electric circuit unit and a control circuit for controlling the driving unit of the ultrasonic humidifier are housed in the unit 6 in addition to the water tank and the cover.

The spray tube 30 is a flexible tube, and a nozzle 30a for blowing out mist is formed at the upper end thereof.
In the vicinity of the 0 nozzle 30a, a receiving tray 32 that contacts the outer peripheral side surface thereof and receives the water droplets of the nozzle 30a is arranged.

The tray 32 has a bottom 32a and a wall 32b.
The bottom portion 32 a is arranged with one side portion inclined downward, and the lower end portion (one side portion) of the bottom portion 32 a is in contact with the heat exchanger 5. Therefore, the water received by the receiving tray 32 is guided to the heat exchanger 5 along the inclined bottom 32.

The first side of the humidifier body 26 has a first side.
The side plate 36 and the second side plate 38 are arranged, and the lower end portion of the tray 32 is always in contact with the heat exchanger 5 in response to the change in the inclination angle of the heat exchanger 5. That is, the receiving tray 32 is attached to the upper end of the second side plate 38, and the second side plate 38 is rotatably stopped with respect to the first side plate 36 via the rotation shaft 40.

The second side plate 38 is rotatably supported by a first side plate 36 fixed to a mounting bracket 34 fixed to the back surface portion 6 of the main body 3 via a rotation shaft 40.
2 is fixed to the upper end of the second side plate 38. Further, the first side plate 36 has a screw 38b screwed to the second side plate 38.
Are formed along the rotation of the second side plate 38, and occupy the screw 38b at a predetermined position,
The second side plate 38 is fixed to the first side plate 36.

It is to be noted that what is arranged above the first side plate 36 is an introduction port 39 a of the air introduction pipe 39.

A control circuit for controlling the operation of the air conditioner 1 is disposed in the housing 41 of the electric component box 9.

The electrical box 9 is fixed to the front panel 13 side above the suction port 37 of the blower 7, specifically, at the discharge port 35 of the blower 7, and is connected to the fan case 29 of the blower 7 and the front panel. 13. In this way, by disposing the electrical box 9 at a position above the suction port 37 of the blower 7, when inspecting the electrical box 9, the worker is positioned at about the height of his / her eyes while sitting down or sitting down. Inspection work such as maintenance is facilitated. Furthermore, by installing the electrical box 9 at a position relatively higher than the floor, it is possible to prevent the floor from being adversely affected by dust and the like.

Next, the operation of the air conditioner according to the present embodiment will be described.

The air conditioner 1 according to this embodiment includes a blower 7
When the electric motor 33 is driven, air is sucked from the suction port 37 of the blower through the suction panel 13a, and
5 is blown upward. The air blown from the blower 7 passes through the heat exchanger 19 and flows out of the blow-out panel 13.
The heat-exchanged air is blown from the outlet 16 of b.

Then, if necessary, the humidifier 28 is driven and a part of the wind blown from the blower 7 is sent to the wind inlet 39a.
From the spray tube 30 to spray mist droplets to humidify the air blown into the room.

In the humidifier 28, the nozzle 30 of the spray cylinder 30
A mist droplet is scattered from a, but a part of the scattered no-drop may become a water droplet on the peripheral wall of the nozzle 30a and may fall along the peripheral wall of the spray cylinder 30 as it is.

In such a case, water droplets return to the water tank of the humidifier main body 26 inside the nozzle 30a, but water droplets outside the nozzle 30 travel along the outer peripheral wall of the nozzle to the control circuit and the electric circuit portion in the humidifier main body 26. Although the water droplets try to fall, the water droplets are received by the tray 32 and guided to the heat exchanger 5 along the slope of the bottom surface 32a. The water droplets guided to the heat exchanger 5
It is guided by a drain pan 21 provided at the lower end of the heat exchanger, and is discharged to the outside of the air conditioner 1 via a drain hose 21a together with the dew condensation of the heat exchanger 5.

On the other hand, when the inclination angle of the heat exchanger 5 is changed due to the installation condition of the air conditioner or the like, the screw 38 b is loosened, and the second side plate 38 is pivoted about the rotation shaft 40 to the first side plate 36.
Is rotated by a predetermined angle with respect to, and when the tray 32 is brought into contact with the heat exchanger 5, the screw 38b is tightened. Thereby, regardless of the inclination of the heat exchanger 5, the receiving tray 32 can always be in contact with the heat exchanger 5.

Therefore, in this embodiment, no drain pan for the humidifier is provided, and the drain pan 2 of the heat exchanger 5 is not provided.
Since water droplets are led out of the spray tube 30 of the humidifier by using 1, the water can be prevented from entering the electric circuit portion and the control circuit portion of the humidifier body with a simple configuration.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention.

For example, one side of the receiving tray may be hooked on a fin or the like of a heat exchanger to be locked or fixed. In this case, if the second side plate is also configured to automatically rotate with the movement of the tray in accordance with the setting of the inclination angle of the heat exchanger, the position of the second side plate is adjusted in accordance with the inclination angle of the heat exchanger 5. No need to adjust.

The same effect can be obtained if the tray provided on the spray cylinder is not limited to the nozzle at the upper end of the spray cylinder, but may be at the lower part of the spray cylinder.

[0040]

According to the present invention, a receiving tray for receiving water droplets is provided outside the spray tube of the humidifier, and the droplets of the receiving tray are guided to the drain pan of the heat exchanger via the heat exchanger 5. With a simple configuration, it is possible to prevent water droplets attached to the outside of the spray cylinder from falling down on the humidifier body along the cylinder wall.

[Brief description of the drawings]

FIG. 1 is a side view showing a humidifier of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the air conditioner according to the embodiment of the present invention.

FIG. 3 is a perspective view showing an appearance of the air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air conditioner 3 Main body 5 Heat exchanger 21 Drain pan 28 Humidifier 30 Spray cylinder 32 Receiving tray

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tetsuo Nishiyama 2--18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Katsuo Uchida 2--18 Keihanhondori, Moriguchi-shi, Osaka (56) References JP-A-4-46646 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 6/00 331 F24F 6/00 F24F 6/12 101

Claims (1)

(57) [Claims] 1. Arranged obliquely in the main body with the back face down
A heat exchanger that is, in the air conditioner having a blower for blowing air to the back of the heat exchanger, the back of the heat exchanger
On the side, the humidifier body and extending upward from this humidifier body
Humidifier that sprays fog droplets from the spray cylinder
A receiver for receiving water droplets outside the spray tube of the humidifier, and contacting the receiver with the back of the heat exchanger.
Water droplets received in the pan to the back of the heat exchanger.
An air conditioner characterized by that: