JPH0451292Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is an air conditioner (hereinafter referred to as an air conditioner) that is used by storing the main body inside the ceiling and exposing the decorative grille provided with the air outlet and inlet. ) humidifier.

[Prior Art] Fig. 3 is a sectional view of a conventional humidifying device for an air conditioner disclosed in, for example, Japanese Utility Model Application No. 1983-77723 (Utility Application No. 168531/1983). is the main body of the air conditioner, which is housed inside the ceiling 2 and includes a blower 3, a heat exchanger 4, an intake grill 5, and an outlet grill 6.
It is composed of Reference numeral 7 denotes a humidifier body disposed on the upper surface of the housing 1a of this body, with one end connected to the suction port 7.
a is connected to a suction opening 1b formed on the secondary side of the left heat exchanger 4, and the other end outlet 7b is connected to a blowout opening 1c formed on the secondary side of the right heat exchanger 4, A humidifying passage 7c is formed. 8 is a saucer to which humidifying water is supplied from a water supply device (not shown);
It is arranged approximately in the center of the humidification passage 7c. Reference numeral 9 denotes a humidifying section in which a large number of plate-shaped water-absorbing materials are arranged, and circulating air is circulated through a cross-flow blower 10 for secondary air circulation installed on the outlet 7b side.

Next, the operation will be explained. In the air conditioner configured as described above, the indoor air sucked through the intake grille 5 by the drive of the blower 3 is sent to the left and right heat exchangers 4, and is heated here during heating (at the same time, the relative humidity is lowered). The heated air is blown into the room from the blow-off grill 6.

On the other hand, a part of the heated air that has passed through the left heat exchanger 4 is transferred to the opening 1 as the cross flow blower 10 rotates.
After being sucked into the passage 7c from b and being humidified while passing through the humidifying part 9, it is blown out from the blowing opening 1c to the secondary side of the left heat exchanger 4, and passes through the left heat exchanger 4. The heated air is then blown into the room from the blow-off grill 6.

Here, water is always supplied to the saucer 8 from a water supply device (not shown) so that the lower end of the water-absorbing material humidifying section 9 is immersed, and the entire surface of each water-absorbing material is wetted with water due to the water-absorbing action of the water-absorbing material. , the heated air is moistened by contacting the surface with the heated air. In this case, since the secondary air heated by the heat exchanger 4 is sent to the humidifier 9, the amount of humidification becomes larger than when primary air is supplied.

[Problem that the invention aims to solve] This invention is structured as described above, so
There have been problems such as the need to provide a highly reliable humidifier that does not require maintenance of the humidifier itself.

This invention was made to solve this problem, and the purpose is to obtain a highly reliable humidifying device for an air conditioner that is integrated with the air conditioner main body.

[Means for Solving the Problems] A humidifier for an air conditioner according to the present invention is housed inside the ceiling, has a decorative grille forming an inlet and an outlet exposed below the ceiling surface, and has a humidifier installed in the air conditioner body. The air conditioner is constructed into a rectangular box with multiple openings provided on the ceiling surface of the air conditioner body that serve as the secondary side of the heat exchanger installed inside the air conditioner, and an inlet and an outlet that communicate with these openings. In the humidifier, a drain pan is provided at the bottom, and an inverted L-shaped humidifying element made of water-absorbing material is placed in the drain pan, and the air passing through this air path comes into contact with the air path of the humidifier that leads from the inlet to the outlet. In addition, a water supply tray is arranged on the shorter side of the humidifying element, and a cross-flow blower is arranged between the humidifying element and the air outlet.

[Function] In this device, during heating operation, a part of the secondary air heated by the heat exchanger inside the air conditioner is taken into the humidifier, passed through an inverted L-shaped humidifying element, and then humidified by the blower. Returning to the secondary side of the heat exchanger, water for humidification rises from the end of the humidifying element and flows down toward the end joined to the drain pan.

[Example] Hereinafter, an example of the humidifier for an air conditioner of this invention will be described with reference to the drawings. FIG. 1 is a sectional view showing the configuration of one embodiment. In this figure 1, the third
Components that are the same as those in the figure will only be given the same reference numerals, and parts that are different from those in FIG. 3 will be described with emphasis.

In Fig. 1, the air conditioner main body 1, ceiling surface 2, blower 3, suction grill 5, heat exchanger 4, and outlet grill 6 housed inside the ceiling are the same as in Fig. 3, and the following points are included. Unlike Fig. 3, this is a feature of this invention.

That is, an inlet and outlet ports 1a and 1c are provided on the ceiling surface of the air conditioner main body 1. This suction port
The air outlets 1b and 1c are openings, and at the same time serve as an inlet and an air outlet of the humidifier 7.

The detailed configuration of this humidifier 7 is shown in FIG.
In FIG. 2, reference numeral 9 denotes an L-shaped humidifying element, which is made of a water-absorbing material (for example, a hydrophilic plastic porous sintered body of Asahi Kasei Industries, Ltd., trade name: Sunfain AQ). The humidifying element 9 is arranged as shown in this figure, for example, a large number of humidifying elements 9 with a thickness of 2 mm and an array pitch of 2 mm are provided.The lower end of the short side of the humidifying element 9 has a water supply tray 8, and the lower end of the long side is in contact with the upper surface of the drain pan 11. are in contact with each other. A water supply box 12 is arranged at one end of the water supply tray 8, and a water supply pipe 14 is inserted into this water supply box 12 via a solenoid valve 13. A water level detection float switch 15 is provided at the other end of the water supply tray 8. 10 is a cross-flow blower including a fan motor 10a and a sleeve bearing 10b.
Equipped with: 16 is an electrical component. The section from the suction port 1b to the humidifying element 9, the cross-flow blower, and the suction port 1c is defined as the air path 7c, and the fan motor 10a, solenoid valve 13, sleeve bearing 10b, and electrical component 16 storage area are separated from the air path. A partition wall 17 is formed in each. 18
is a drain outlet, which is attached to the drain pan 11.

Next, the operation of this invention will be explained. Indoor air sucked in from the suction grill 5 is guided to the heat exchanger 4 by the blower 3, and during heating operation, a part of the air heated here (and at the same time the relative humidity is reduced) is transferred to the ceiling opening of the air conditioner body 1. Humidifier 7 at the same time
is sucked in from the suction port 1b of the humidifying element 9.
is humidified by the cross-flow blower 10, and then the air outlet 1 is
c, the air is returned to the inside of the air conditioner body 1, mixed with air heated by the heat exchanger 4, and blown into the room.

At this time, water for humidifying the humidifying element 9 is supplied to the water supply box 12 through the water supply pipe 14 via the electromagnetic valve 13, and is stored in the water supply tray 8. Water tray 8
When the water level reaches a certain level, the water level detection float switch 5 is activated to close the solenoid valve 13 and maintain the water level. Water rises from the end of the humidifying element 9 that fits into the water pan 8 and then falls towards the end that joins the drain pan 11. During this time, the amount of water that is not humidified is collected in the drain pan 11 and drained to the outside through the drain outlet 18. The drain outlet 18 is also used to drain water in the event that the solenoid valve 13 or water level detection float switch 15 malfunctions, or if the humidifier 7 or air conditioner body 1 is installed at an angle, or if the water overflows from the water supply tray 8 and becomes what is commonly called a drip sink. It is also effective as a word of mouth.

[Effects of the invention] As explained above, this invention is a heat exchanger that is housed inside the ceiling, has a decorative grille that forms the inlet and outlet exposed below the ceiling surface, and is installed inside the air conditioner body. The humidifier is configured as a rectangular box with multiple openings provided on the ceiling surface of the air conditioner main body, which is the secondary side of the humidifier, and an inlet and an outlet that communicate with these openings.A drain pan is installed at the bottom of the humidifier. and an inverted L-shaped humidifying element made of water-absorbing material is erected in this drain pan so that the air passing through this air path comes into contact with the air path of the humidifier that leads from the inlet to the outlet, The structure has a water supply tray on the short side of the humidifying element and a cross-flow blower between the humidifying element and the air outlet, which prevents impurities contained in water from accumulating in the humidifying element and extends the life of the element. This has the effect of promoting the reliability of the humidifier, improving the reliability of the humidifier, and minimizing maintenance of the humidifier.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the humidifier for air conditioners of this invention, Fig. 2 is an internal structure diagram of the humidifier main body in Fig. 1, and Fig. 3 is a sectional view showing a conventional air conditioner. . In the figure, 1b is an inlet, 1c is an outlet, and 7
8 is a humidifying passage, 8 is a water supply tray, 9 is a humidifying element, 10 is a cross-flow blower, and 11 is a drain pan. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] The ceiling surface of the air conditioner body, which is housed inside the ceiling and has a decorative grille that forms the inlet and outlet exposed below the ceiling surface, and which is the secondary side of the heat exchanger installed inside the air conditioner body. A humidifier is configured in a rectangular box body with multiple openings provided in the air, and an inlet and an outlet communicating with the openings. An inverted L-shaped humidifying element is installed upright in the air path of the humidifier leading from the inlet to the outlet so that the air passing through this air path comes into contact with the humidifying element. A humidifier for an air conditioner, characterized in that a cross-flow blower is disposed between a humidifying element and the air outlet.