JPH0733074Y2 - Ceiling embedded air conditioner - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner equipped with a naturally evaporative humidifier, which facilitates maintenance work of the humidifier.

[0002]

2. Description of the Related Art In an air conditioner, a humidifier is often arranged on the windward side of a heat exchanger to give moisture to the air flow of the heat exchanger. It is known from Japanese Patent Publication No. 1-51129. In this conventional device, a pair of stays are provided in a box-shaped case, and both ends of the lower part of the humidifier are screwed thereto.

[0003]

[Problems to be Solved by the Invention] In a natural evaporation type humidifier, since the humidifying element contains water when it is used, dust is liable to adhere to the humidifying element, and the humidifying element is quickly polluted to deteriorate the humidifying ability or to have an odor. May be released. Therefore, it is necessary to clean or replace the humidifying element at relatively short intervals.However, in the conventional device as described above, the case must be removed and the surrounding structure must be removed before the humidifier is removed. Since it could not be removed, maintenance work was troublesome.

Particularly, in the case of a ceiling-embedded air conditioner, since maintenance must be performed in a narrow ceiling space, it is difficult to perform the work, and there is a disadvantage that the work requires a long time. For the purpose of facilitating maintenance work, it is known to support a member to be maintained by a rail so that the member can be inserted and removed. For example, in the exclusive humidifier disclosed in Japanese Utility Model Laid-Open No. 1-148539, the electrical component panel is supported by a pair of upper and lower rails so that the electrical component panel can be pulled out from the service port on the side of the case when necessary. ing.

By applying this idea to the humidifier, maintenance work of the humidifier can be facilitated. However, in the case of a ceiling-embedded air conditioner, it is necessary to secure a working space outside the opening position of the service port and further to open an inspection port on the ceiling wall for entering and exiting the working space. However, the installation position is easily restricted. For example, the service port cannot be installed so as to closely face the peripheral wall or pillar behind the ceiling.

This invention has been proposed in order to solve the above-mentioned problems, and the humidifier can be attached and detached from either side of the case side wall or the bottom wall to facilitate maintenance work. The purpose is to improve the degree of freedom of the installation position of the air conditioner at the same time.

[0007]

In order to achieve the above object, the air conditioner of the present invention, as shown in FIG.
Box-shaped case (1) assuming that it is a ceiling-embedded type
It has a blower (2) and a heat exchanger (3) inside, and a natural evaporation type humidifier (4) is arranged on the windward side of the heat exchanger (3), and the heat exchanger (3) and the humidifier are provided. A drain pan (5) is provided below (4), and a raid for slidably supporting the humidifier (4) along the windward surface of the heat exchanger (3).
That the side wall of the casing (1) facing the side end of the rail (13) has a side service port (23) for operating the humidifier (4). ) Is opened and is closed by a removable lid (24), the case (1)
A bottom service port (28) for opening and closing the drain pan (5) is opened on the bottom wall, and is closed by a removable panel (29), the case (1) inner wall or case (1). Brackets (17, 18) for supporting the rail (13) are provided on the member attached to
The rail (13) is attached to the bracket (17, 18).
It is a requirement that it be fixed by screws (19) from the bottom side of the sleeve (1).

[0008]

With the above construction, in the present invention, the peripheral side wall of the main body case (1) is provided with the service port (23,
28) is opened so that the humidifier (4) can be taken out of the case (1) from any of the service ports (23, 28), so that the humidifier (4) can be easily maintained. , The air conditioner can be installed at the optimum position.

[0009]

Therefore, in the air conditioner of this invention,
The entire humidifier (4) is slidably supported by the rail (13), and the side service port (23) on the side wall of the case (1) is slidably supported.
So that the humidifier (4) can be pulled out of the case (1), and a bottom service port (28) for opening and closing the drain pan (5) can be opened in the bottom wall of the case (1). Loosen the screw from the side of the bottom service port (28) to remove the rail (1
The humidifier (4) can be taken out of the case (1) together with (3). Therefore, according to the air conditioner of this invention,
Either from the side service port (23) or the bottom service port (28), the humidifier (4) can be installed depending on the situation of the installation location.
Can be taken out of the case (1) and its maintenance can be easily performed. Furthermore, the side service port (23)
Even if it is not possible to secure a working space outside of, the humidifier (4) can be taken out from the side of the bottom service port (28), so there is no restriction due to the working space.
The air conditioner can be freely installed, and the air conditioner can always be installed at the optimum position depending on the conditions of the room to be air-conditioned.

[0010]

1 to 7 show an embodiment of an air conditioner according to the present invention.

In FIG. 2, in the air conditioner, the inside of a box-shaped case (1) is divided by a compartment wall (1a), a blower (2) is arranged in one of the compartments, and the other compartment is arranged. A heat exchanger (3), a humidifier (4), and a drain pan (5) are arranged, which are arranged behind the ceiling and are suspended and supported by suspension bolts (not shown). The room air is sucked into the blower (2) through the intake port (6) opened on the bottom wall of the case,
It is blown out toward the heat exchanger (3). This blown air is heated (or cooled) while passing through the heat exchanger (3), and is further contacted with the humidifying element (9) of the humidifier (4) to be humidified, and then is passed through the duct (7). Is returned to the room.

The humidifier (4) is provided below the humidifying pan (10) having an inverted trapezoidal cross section, a group of humidifying elements (9) inserted into the inclined wall of the humidifying pan (10), and the humidifying pan (10). The drip guide plate (11) and the float switch (12) (see FIG. 4) provided in the middle of the humidifying pan (10) in the longitudinal direction, and the like, and the entire air flow surface of the heat exchanger (3). It is supported by rails (13) arranged along.

The humidifying pan (10) is supported by the rail (13) in an upwardly opened posture, and is provided to store the humidifying water therein. Humidifying element (9)
Is a thin plate-shaped fiber, and most of it is sized to be exposed above the humidifying pan (10) and arranged at regular intervals like the heat radiating fins of the heat exchanger (3). It is integrated with a stringer. The water in the humidifying pan (10) spreads over the entire surface of the humidifying element (9) due to the capillary phenomenon, and spontaneously evaporates on the surface of the humidifying element (9) to increase the humidity of blown air. The moisturizing element (9) extends below the water level in the pan on the outer surface of the inclined wall of the moisturizing pan (10), and excess water that has not completely evaporated evaporates from this part and the drip guide plate ( 11) and via a chain (14) (see FIG. 3) provided at both ends of the inclined lower edge thereof, to the drain pan (5).

In FIG. 1, the rail (13) is a press-molded product having an isosceles trapezoidal cross section, and the casing (15, 16) is provided at both ends in the longitudinal direction of the rail (13). Brackets (17, 18) fixed to the side ends of the heat exchanger (1) and the heat exchanger (3) are attached. As shown in FIG. 4, the former bracket (17) includes a pair of lower receiving walls (1
7b, 17b) and an upper receiving wall (17a) provided between these lower receiving walls (17b, 17b).
The (15) is held in a state of being sandwiched by the upper and lower receiving walls (17a, 17b) from the upper and lower surfaces, and in this state, the screw (19) screwed from the lower surface side holds the station (15) on the upper receiving surface. It is fastened to (17a). Similarly, the latter bracket (18) is also provided with upper and lower receiving walls (18a, 18b), and these receiving walls (18a, 18b) support the latter stage.
A screw (1) in which the (16) is sandwiched and held vertically and the stay (16) and the upper receiving wall (18a) are screwed from the lower surface side (1).
It is concluded in 9).

In order to slide the entire humidifier (4) in and out along the rail (13), the humidifying pan (1)
Bend the upper end of the vertical wall of
3) A hooking wall (21) which is fitted to the outside is provided. Further, a latch plate (22) inclined in the opposite direction to the latch wall (21) is also fixed to the lower end of the vertical wall. The retaining wall (21) and the retaining plate (22) are provided over substantially the entire length of the humidifying pan (10) in the longitudinal direction. As shown in FIG. 4, a side service port (23) for inserting and removing the humidifier (4) is opened on the lower side wall of the case, and the outer surface thereof is closed by a removable lid (24). is doing.

In FIG. 5, a water supply pipe (25) is introduced into the case (1) through a passage at the upper end of the lid (24), and a plastic hose (26) connected to the inner end thereof. Water can be supplied to the humidifying pan (10) via the.
The water level in the humidifying pan (10) is controlled by the float switch (1
It is always detected in 2), and when the water level goes down, the float switch (12) is activated to open the solenoid valve (not shown) to activate it, and through the water supply pipe (25) and hose (26). Can supply water to a certain level.

As described above, the humidifier (4) is connected to the rail (1
By being slidably supported by 3), the entire humidifier (4) can be inserted and removed from the side service port (23) as shown in FIG. When attaching and detaching, the hose (26)
Although the humidifying element (9) hits against, the hose (26) can be freely bent, so that it does not interfere with the attachment and detachment.

In addition to attaching and detaching from the side of the case, the humidifier (4) can also be attached and detached from the side of the bottom wall of the case. For that purpose, a bottom service port (28) (see FIG. 2) is opened in the bottom wall of the case (1) facing the drain pan (5), and the drain pan (5) can be removed downward from the case. Is done. The bottom service opening (28) is closed by a panel (29) which is detachably attached to the case (1).

When removing the humidifier (4) from the side of the bottom service port (28), the mounting portion of the rail (13) is disassembled and the humidifier (4) together with the rail (13) is disassembled. Put on and take off. As described above, the rail (13) has the ends (1)
5, 16) to the brackets (17, 18) with screws (19,
It is fixed by fixing it in 19). This rail (1
At the time of disassembling 3), the screws (19, 19) were screwed in from the bottom side of the case in order to remove and operate the screws (19, 19) from below the case.

After removing both screws (19, 19), FIG.
As shown in FIG. 5, the stay (16) is horizontally displaced to separate it from the bracket (18), and the other stay (15) is also removed from the bracket (17) to remove the humidifier (4).
Can be taken out of the case. When reassembling, follow the reverse procedure.

In the above embodiment, one ray is used.
Although the humidifier is supported by the rule (13), there may be a plurality of rules (13).

The brackets for supporting the rails (13) may be mounted on both the heat exchanger (3) or both the case (1).

[Brief description of drawings]

FIG. 1 is a side view showing a support structure of a humidifier.

FIG. 2 is a vertical sectional side view of the air conditioner.

FIG. 3 is a vertical sectional side view of the humidifier.

FIG. 4 is a cross-sectional plan view showing a mounting state of a humidifier and a rail.

5 is a cross-sectional view taken along the line AA in FIG.

FIG. 6 is a cross-sectional plan view showing a state in which the humidifier is taken out from the side service port.

FIG. 7 is a cross-sectional plan view showing a state where the humidifier is taken out from the bottom service opening.

[Explanation of symbols]

 1 Case 2 Blower 3 Heat Exchanger 4 Humidifier 5 Drain Pan 13 Rails 17, 18 Bracket 19 Screw (Screw) 23 Side Service Port 24 Lid 28 Bottom Service Port 29 Panel

Claims (1)

[Scope of utility model registration request] 1. A box-shaped case (1) having a blower (2) and a heat exchanger (3), and a natural evaporation type humidifier (4) on the windward side of the heat exchanger (3). ) Is arranged, and a drain pan (5) is provided below the heat exchanger (3) and the humidifier (4), the humidifier along the windward surface of the heat exchanger (3). Rail (1) that slidably supports (4)
3) is arranged, and a side service port (23) for operating the humidifier (4) in and out is opened on the peripheral side wall of the case (1) facing the side end of the rail (13), Detachable lid (24)
The bottom service port (28) that allows the drain pan (5) to be taken in and out is opened in the bottom wall of the case (1), and is closed by the removable panel (29).
A bracket (1) for supporting the rail (13) on an inner wall of the case (1) or a member attached to the case (1).
7, 18) are provided, and this bracket (17,
18) A ceiling-embedded air conditioner in which a rail (13) is fastened and fixed to the case (1) from the bottom side of the case (1) with a screw (19).