JP3102180B2 - Air conditioning ventilation equipment - 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-conditioning ventilator having a humidifying function for humidifying an air supply flow.

[0002]

2. Description of the Related Art As the conventional HVAC system of this kind, for example, real-Open No. 3 over 124,132 discloses and real No. 3 over 124,133 discloses and real Hei 4-23929 JP parallel
And Japanese Patent Publication No. 4-35653 .

In other words, an exhaust blower for forming an exhaust flow is provided in an exhaust passage in a main body box in which an air supply passage for passing fresh air outside and an exhaust passage for passing dirty air inside the room are defined. Further, an air supply blower for forming an air supply flow is incorporated in the air supply passage. A part of each of the air supply passage and the exhaust passage is constituted by two systems of working fluid passages of a heat exchange element, and a humidifier for humidifying the supply air flow in the air supply passage downstream of the heat exchange element. Are arranged.
The humidifier has a configuration in which a water supply system is connected to the humidifying element.
The humidifying element is provided on the drain pan.

The air-conditioning ventilator having the above-described structure can continuously exchange heat between the supply air flow and the exhaust air flow. Humidification and ventilation can be performed with less supply and exhaust air.

[0005]

In the conventional air-conditioning and ventilating apparatus as described above, the configuration relating to humidification is mixed with the configuration of the ventilation system, and it is necessary to solve the problem that water-related problems due to the humidification system are likely to occur. Includes challenges.
That is, if water is scattered in the humidifying section for some reason, water leaks from a gap between the main body box and the drain pan. In addition, water may be splashed on the water supply solenoid valve and cause insulation failure in the electrical system.However, since there is no monitoring system for water, it is difficult to detect water leaks. Easy to reach
No.

For example, Japanese Unexamined Utility Model Publication No. 4-23929
The drain pipe connected to the drain port of the drain pan
If the slope is not set for any reason or reason
Is, is normal waste water treatment against water leakage that occurred on board
Water overflows from the drain plate and leaks to the outside
Will be done.

[0007] For example, Japanese Patent Publication No. 4-35653
The water supply test shown in the figure shows that
Water supply inside the humidifier when checking for
Issues that make it difficult to determine whether
I have. In other words, the water level change of the water tank and the float switch
Only when the operation of the
I don't know if it was.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is possible to prevent water-related troubles caused by a humidifying system and easily check the state of water supply to a humidifier.
The purpose of the present invention is to obtain an air-conditioning ventilator .

[0009]

An air conditioning and ventilating apparatus according to a first aspect of the present invention humidifies a humidifier to a supply air flow in which heat is exchanged between the supply air and the exhaust air. And an eaves-shaped waterproof structure that guides water into a drain pan provided below the inner wall surface that constitutes the space of the part incorporating the humidifier. Things.

The air-conditioning ventilator according to a second aspect of the present invention relates to a humidifier, in which a return tube made of a transparent tube communicating with an upper part of a water supply tank is provided at an end of a water-permeable bag.

The air-conditioning ventilator according to a third aspect of the present invention particularly relates to a humidifier, in which a mesh member smaller than water droplets is provided at an outlet side of a ventilation path through which a supply air flow of a humidifier passes to prevent water droplets from passing therethrough.
That's what I did .

The air-conditioning ventilator according to a fourth aspect of the present invention is provided with a water detector for detecting, at the time, when water accumulates in the drain pan at a water level higher than the center level of the substantially inner diameter of the drain port at that time. .

[0013]

According to the first aspect of the present invention, water leaking from the humidifier or water due to dew can smoothly flow down to the drain pan, and water leakage to the outside can be avoided.

[0014] In the second invention, particularly, the water bag is completely
The return pipe to see if water has been introduced
You will be able to recognize .

[0015] In the third aspect of the invention, even if there is water leakage or dew condensation in the humidifying part, it is possible to prevent water droplets from being scattered by the air supply flow by the net member.

In the fourth aspect of the present invention, in particular, when there is a problem in draining the drain pan and the drain is not normally drained from the drain drain port of the drain pan, even if water accumulates in the drain pan, the drain port may be drained. If water accumulates at or above the center level of the approximate inner diameter, it is detected at that time, so that it is possible to take preventive measures such as stopping the water supply before the water overflows from the drain pan.

[0017]

1 to 3 show the overall configuration of an air conditioning and ventilating apparatus according to an embodiment of the present invention. FIGS. 4 and subsequent figures show details of the air conditioning and ventilating apparatus of the embodiment of the present invention. 2 shows a configuration. First, the overall configuration will be described with reference to FIGS. 1 to 3, and then the detailed configuration will be described in order.

This air-conditioning ventilator includes an air supply passage for supplying fresh outdoor air into the room inside a main body box 1 constituting an outer housing, and an exhaust passage for exhausting room air to the outside. Are defined in an independent state on the entire path by the partition wall 2 and the like. An exhaust blower 3 for forming an exhaust flow A is incorporated in the exhaust passage, and an air blower 4 for forming an air supply flow B is incorporated in the supply passage. A part of each of the air supply passage and the exhaust passage is constituted by two working fluid passages of a built-in heat exchange element 5, respectively, so that continuous heat exchange between the exhaust air flow A and the air supply air flow B is enabled. It is configured. A humidifier 6 is incorporated in the air supply passage downstream of the air supply blower 4. The inlet end of the air supply passage is formed as a connection port that can be connected to a duct by an air inlet 7 formed on one side of the main body box 1, and the outlet end is formed on the other side of the main body box 1. The supply air outlet 8 is formed as a connection port that can be connected to a duct. Further, an inlet end of the exhaust passage is formed as a duct-connectable connection port with an exhaust suction port 9 opened on the other side of the main body box 1, and the inlet end is opened on one side of the main body box 1. The exhaust air outlet 10 is formed as a duct-connectable connection port.

The humidifier 6 disposed in the air supply passage and performing the humidification process on the air supply flow B is formed in a strip-shaped bag body with a moisture-permeable material as shown in FIGS. Water bag 11
One or a plurality of humidifying units 12 are formed into a cylindrical shape and rolled together with a spacing member forming a ventilation passage. The humidifying part 12 is provided with a channel-shaped holding member 13 mounted on the partition wall 2 and the front inner wall surface of the main body box 1 in an air supply passage between the air supply blower 4 and the air supply outlet 8. Are arranged in a direction perpendicular to the air supply flow B, and hose connection ports are provided at the front end and the end of each water passage bag 11, respectively. At the outlet end of the ventilation path of each humidifier 12, a net (eliminator) 14 having a size smaller than water droplets (3 mm or less) is detachably installed. The humidifier 6 is provided with a water supply system for conducting water for humidification to the water bag 11 and a drainage system for treating drainage.

As shown in FIG. 7, the water supply system includes a water supply tank 15 for storing water used for humidification above the humidification unit 12, and a water supply pipe 1 for supplying water to the water supply tank 15.
6. The water supply tube 15 is mainly constituted by a water supply tube 17 which communicates the water supply bag 11 with the water supply tank 15 and supplies water to the water supply bag 11.

As shown in FIGS. 8, 9, and 10, the water supply tank 15 has a lid 2 provided with a plurality of hose connection ports 18, one water supply connection port 19, and a drain port 20 at the bottom.
1 and is mounted on the upper side of the main body box 1 by mounting brackets 22 mounted on both sides. As shown in FIG. 10, the mounting bracket 22 for attaching the water supply tank 15 includes a side plate 23 corresponding to the side surface of the water supply tank 15, a receiving plate 24 receiving the bottom surface, an upper plate 25 corresponding to the upper surface, and a front surface and a rear surface. A tank holding portion is formed from the front plate and the rear plate 26 that are in contact with each other, and is attached to the main body box 1 at a mounting plate 27 formed by cutting and raising a part of the side plate 23. A notch window 28 is opened in the mounting bracket 22 from the lower center of the side plate 23 to the receiving plate 24, and a projection 29 formed on the bottom near the side of the water supply tank 15 is fitted. Water tank 1
The lid 21 of 5 hits the step of the tank main body by dropping, takes a closed state flush with the upper end of the tank main body, and is pressed by the upper plate 25 of the mounting bracket 22. The reference numeral 30 in FIG. 9 denotes a water supply port, which is opened at a higher level than a certain water level of the water supply tank 15 and is held by a step of the tank body.
The cover is covered with a water supply port cover 30a which is pressed by the water supply port cover 30a.

An operation part of a float switch 31 is arranged inside the water supply tank 15, and the water supply is controlled by the float switch 31 to adjust the water level of the water supply tank 15.
The inside facing the drain port 20 is separated by a partition wall 32.
The water that has flowed over the drainage hole 20 flows down.
As shown in FIG. 9, the hose connection port 18 has a slightly larger diameter hole connected to a hole formed in the bottom surface of the water supply tank 15, and a series of water passage holes having a stepped portion 33 having a step portion 33. It is formed as a part 34.

The water supply pipe 16 is connected to a water supply connection port 19 of the water supply tank 15 via an electromagnetic valve 35, and is controlled by the float switch 31 to control the water supply tank 15.
The water supply to is controlled. The electromagnetic valve 35 is mounted on a mounting portion 36 fixed to the holding member 13 holding the humidifying portion 12, and as shown in FIGS.
, Including the wire binding portion 38. The waterproof cover 37 is formed in a hat shape with an open lower portion, and a pipe fitting portion 39 is formed below the lower portion so that the pipe portion can be tightly fitted and passed therethrough. Its departure is regulated.

The water supply tube 17 connects the hose connection port at the tip and the end of each water flow bag 11 to each hose connection port 18 of the water supply tank 15, and connects the terminal of the water flow bag 11 and the water supply tank 15 to each other. Water supply tube 17 to be the return pipe to contact
“a” is formed of a transparent tube that allows the internal state to be seen through. The end of the water supply tube 17a is connected to the water supply tank 15
Level held by the float switch 31 inside
It is open to higher ranks. Further, a water supply tube 17 for connecting the tip of the water flow bag 11 and the water supply tank 15 is particularly provided in FIG.
As shown in FIG.
0 is externally fitted to the tubular projecting portion 34 of the water supply tank 15, and the inner pipe 41 is internally fitted to a position where the tip thereof contacts the step portion 33. The thickness of the inner pipe 41 and the step of the step portion 33 are set to be substantially the same, whereby the inner diameter of the water passage from the water supply tank 15 to the tip of the water bag 11 is the same over the entire area.

The drainage system includes one surface of a fan casing 42 of the air supply blower 4, a partition wall 2 that is a partition wall between the exhaust air inlet 9 side, and an inner wall surface of the main body box 1 where the air supply outlet 8 is provided. And a drain pan 43 placed at the bottom of an air supply passage as a humidification chamber surrounded by a part of the inner wall surface on the front side. The drain pan 43 is placed on the bottom surface of the main body box 1 at a fixed interval from the holding member 13 holding the humidifying unit 12, and the bottom of the drain pan 43 has a downward slope toward a concave portion 44 formed in the front center. A drain port 4 is provided at the center of the concave portion 44.
5 are formed. As shown in FIG. 13, the end of a drain pipe 46 connected to the drain port 20 of the water supply tank 15 is led into the drain pan 43 by being held by a retainer 47.

As shown in FIG. 14 and FIG.
A drain pipe 4 made of steel pipe connected to an external drain treatment pipe is provided on the main body box 1 on an extension of the drain port 45 of the recess 44 of the third embodiment.
8 is attached. The drain pipe 48 and the drain port 45 of the drain pan 43 are connected to each other by a telescopic connecting tube 49 in a gap formed by the concave portion 44 and the main body box 1, and the connecting portion is fastened by a tube clip 50. The drain pipe 48 is fixed by tightening an inspection window opened in the relevant portion of the main body box 1 across the flange 51, and the inspection window is closed by an inspection lid 52 that can be removed from the outside.

The fan casing 42 forming the inner peripheral surface of the humidifying chamber in which the drain pan 43 is mounted is made of a foamed resin, and has a waterproof structure projecting from above from inside the upper end edge in parallel with the upper end edge of the drain pan 43. The eaves structure 53 of FIG.
Are integrally formed as shown in FIG. Further, a waterproof wall 54 as another waterproof structure is lined on an inner wall surface constituting an inner peripheral surface of the humidifying chamber of the main body box 1 on the opposite side of the fan casing 42. The lower edge of the waterproof wall 54 enters inside the upper edge of the drain pan 43 as shown in FIG. 16 and embraces the upper edge.

A water detector 57 is mounted on a support member 55 supporting the holding member 13 on the drain pan 43 via a mounting plate 56 as shown in FIG. The water detector 57 is an electrode type made of stainless steel.
The electrode 58 faces the drain port 45 of the drain pan 43 toward
As shown in FIG. 18. However, as shown in FIG. 19, the water detector 57 may have a face body on which an electrode 58 is printed and mounted on the inner surface of the drain pan 43.

As for the electric system, as shown in FIGS. 20 and 21, the air supply blower 4, the blower capacity changeover switch 59 of the exhaust blower 3, and a terminal block 60 for connecting an external power supply.
And a U-shaped control circuit board mounting plate 61 that is mounted at an appropriate distance from the side surface of the main body box 1 is provided. The main electric wiring 62 is housed.
A control circuit board 63 is mounted on the control circuit board mounting plate 61, and is entirely covered with a box-shaped cover 64.

A waterproof structure as shown in FIG. 22 is provided between the inner wall surface forming the inner peripheral surface of the humidifying chamber of the main body box 1 on the opposite side of the fan casing 42 and the upper end edge of the drain pan 43. The waterproof wall 54 can be omitted if a hollow waterproof packing 65 is fitted to prevent water leakage from the portion. Also,
As another countermeasure against water leakage, as shown in FIG. 23, with respect to the flange of the connection port member 66 attached to the air supply outlet 8, a receiving portion 67 with a rising for receiving the flange is provided on the main body box 1 side. An assembling mode in which the lower portion of the flange is fitted into the portion 67 is adopted.

The heat exchange ventilation function by the simultaneous supply and exhaust and the humidification processing function for the supply air flow of the air-conditioning ventilator having the above configuration are the same as those of the conventional example, and the basic operation is well known, so that the description is omitted. Hereinafter, the operation and functions of the humidifier 6 will be described.

The supply air flow B after the heat exchange passes through the humidification chamber, is humidified, is blown out from the supply air outlet 8, and is supplied into the room. The humidifier 6 that humidifies the air supply flow B in the humidification chamber has a structure in which water is guided from the water supply tank 15 to each water passage bag 11 and the water passage bag 11 has moisture permeability. It will humidify.

Since the water-permeable bag 11 has been subjected to the antibacterial treatment, it is difficult for bacteria and the like in the air to propagate, and it is possible to prevent the air supply flow B from being contaminated by the bacteria and the like during humidification.
The air supply flow B flows in the ventilation path of each humidifying unit 12, and if there is dew condensation or water leakage in the water-permeable bag 11, the air is blown downstream by the airflow. Since the obstructing net 14 is provided, the water droplets blown off are caught by the net 14, flow down to the holding member 13, and are received by the drain pan 43 below .
Water scattered at a position not passing through the net 14 scatters on inner wall surfaces before and after in the flow direction of the supply air flow B in the humidifying chamber, but the problem of water leakage due to these water droplets is prevented. That is, since the fan casing 42 is provided with the eaves structure 53 and the opposite side is provided with the waterproof structure by the waterproof wall 54 or the waterproof packing 65, all the water scattered in the above-described form flows down to the drain pan 43. And will be accepted.

Water leaking around the water supply tank 15 and water caused by overflow of the water supply tank 15 are all received by the drain pan 43 below the water tank 15 and do not leak to the outside. The drain pan 43 to receive water passes through the connecting tube 49 from the discharge port 45 by the gradient, are wastewater treatment by drainage process piping external.

If the slope of the external drain treatment pipe is not sufficiently secured due to the installation location or other reasons, water will accumulate in the drain pan 43. In this case, when the water detector 57 reaches a water level higher than the drainage port 45, a detection output is issued at that time, and based on this output, the electromagnetic valve 35 is closed to stop water supply to the water supply tank 15, or an alarm is issued. As a result, it is possible to prevent water from overflowing from the drain pan 43 beforehand. When drainage in the drain pan 43 is performed smoothly, water does not reach the position of the electrode 58, and the water detector 57 does not output a water detection output.
Since the electromagnetic valve 35 is covered with the waterproof cover 37 including the electric wire binding portion 38, it is possible to avoid operation failure due to water such as insulation failure. The waterproof cover 37 itself is held by the pipe fitting portion 39, and is prevented from falling off due to mechanical vibration or the like with a simple structure.

Water due to condensation also collects in the drain pan 43
However, the position of the electrode 58 is located at the center of the inner diameter of the drain port 45.
Therefore, a small amount of water accumulation due to condensation etc. is detected,
There is no inconvenience that water supply is stopped. In addition, water bag 1
There is water leakage from 1st class and the capacity of the drain pan 43 is small.
If the water level rises very quickly,
If the device is above the drain pan 43,
Overflow will occur until water supply is stopped
However, the position of the electrode 58 is located at the center of the inner diameter of the drain port 45.
By storing water until the water supply is stopped
The volume will be secured.

The water supply tank 15 is maintained at a constant water level by a float switch 31 and a solenoid valve 35, and water is supplied from the water supply port. The water supply port 30 opens higher than the predetermined water level, and the water supply port cover 30a And the water for humidification does not reach the water supply system.
Even if the water for humidification 5 is contaminated with germs and the like, germs and the like are less likely to diffuse from the water supply system to other water supply facilities, and malfunction of the float switch 31 due to disturbance of the water surface during water supply is also prevented.

The water for humidification in the water supply tank 15 is guided to the water flow bag 11 by the water supply tubes 17 and 17a and used for humidification. At this time , since the water supply tube 17a, which is the return pipe, is a transparent tube, it can be directly confirmed from the outside whether or not the water supply to the water bag 11 is smoothly conducted. Therefore, there is no water leak in each part by the water supply test.
When the inspection is performed, water is completely contained in the water bag 11 of the humidifier 6.
Since it can be visually confirmed and determined whether or not it has been supplied.
The work is easier and the reliability of the water supply test is higher. In addition,
Visibility is maintained without connecting a return pipe to the water supply tank 15
Yes, but the water drains and wastes water.
Will be. Further, the water supply tube 17 is a double tube having high durability and the inner diameter of the flow path on the water supply side is the same, so that the air can be smoothly removed at the time of initial water flow.

In terms of structure, the holding and fixing of the water supply tank 15 is ensured by the mounting plate 27, and the lid 21 can be securely closed by the upper plate 25 of the mounting plate 27 without using screws or the like. In addition, since the drain pipe 48 and the drain pipe 46 are connected by a telescopic connecting tube 49, the position of the drain pan 43 can be interchanged when inspecting through an inspection window, and maintenance and inspection of each part can be easily performed. .
Furthermore, since the receiving portion 67 has a rising portion below the mounting portion of the connection port member 66, leakage of water to the outside from this portion is also prevented. Since the control circuit board 63 is shielded from the main electric wiring 62 by the control circuit board mounting plate 61, the electric noise of the electric wiring 62 is not adversely affected.

As described above, the air-conditioning ventilator is characterized in that, shortly, measures against water around the humidifier 6 are taken in a detailed and rational manner, and troubles relating to water leakage can be virtually eliminated.

[0041]

As is clear from the above description of the embodiment, according to the first invention, water leaking from the humidifier or water due to dew condensation smoothly and reliably flows down to the drain pan to prevent water leakage to the outside. It is possible to prevent the occurrence of troubles caused by water related to the humidifier.

According to the second aspect of the present invention, the appropriateness of the state of water supply to the water bag, in particular, can be easily and visually determined.
And the like can be performed easily and reliably, and maintainability is improved .

According to the third aspect of the present invention, even if there is water leakage or dew condensation in the humidifying part, the net member can reliably prevent water droplets from being scattered by the air supply flow, and eliminate water leakage due to water scatter. be able to.

According to the fourth aspect, particularly from the drain pan
Even if there is a problem in the drainage path of the water and the water accumulates in the drain pan, it is possible to detect the presence of water before the water overflows from the drain pan, based on which the notification operation and water supply stop operation Prevents the overflow of water from the drain pan , and alerts you with a small amount of water
Inconveniences such as cropping and water supply stop operation can be avoided.

[Brief description of the drawings]

FIG. 1 is a perspective view of an air-conditioning ventilator according to an embodiment of the present invention, with a top surface thereof removed.

FIG. 2 is a cross-sectional plan view showing the configuration of the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 3 is a vertical sectional front view showing the configuration of the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 4 is a perspective view showing a configuration around a humidifier in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 5 is a perspective view illustrating a configuration of a humidifying unit in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 6 is a configuration diagram showing a configuration around a humidifier in the air-conditioning ventilation apparatus according to the embodiment of the present invention.

FIG. 7 is a side view showing a configuration around a humidifier in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 8 is a partially cutaway perspective view showing a water supply tank in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 9 is a sectional view of a water supply tank in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 10 is a partial perspective view showing a mounting structure of a water supply tank in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 11 is a perspective view showing a configuration around a solenoid valve in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 12 is an exploded perspective view showing a configuration around a solenoid valve in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 13 is a partial perspective view showing a drainage structure of a water supply tank in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 14 is a cross-sectional view of a drain pan drainage structure in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 15 is an exploded perspective view of a drain drainage structure in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 16 is an explanatory diagram showing a waterproof structure in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 17 is a perspective view showing a water detector in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 18 is a cross-sectional view showing an attached state of a water detector in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 19 is a partial perspective view showing another water detector in the air-conditioning ventilator according to the embodiment of the present invention.

FIG. 20 is an exploded perspective view of a mounting portion of an electric component in the air-conditioning and ventilating apparatus according to the embodiment of the present invention.

FIG. 21 is a cross-sectional view of a mounting portion of an electric component in the air-conditioning and ventilating apparatus according to the embodiment of the present invention.

FIG. 22 is a sectional view showing another embodiment of the waterproof structure in the air-conditioning and ventilating apparatus according to the embodiment of the present invention.

FIG. 23 is a partial cross-sectional view showing a mounting structure of a connection port member in the air-conditioning ventilator according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body box 2 Partition wall 3 Exhaust blower 4 Air supply blower 5 Heat exchange element 6 Humidifier 7 Supply air inlet 8 Supply air outlet 9 Exhaust air inlet 10 Exhaust air outlet 11 Water permeable bag 12 Humidifier 14 Network 15 Water supply tank 17 Water supply tube 17a Water supply tube 35 Solenoid valve 42 Fan casing 43 Drain pan 53 Eave structure 54 Waterproof wall 57 Water detector

──────────────────────────────────────────────────続 き Continuing on the front page (72) Kazuaki Shimobayashi Kazuaki Shimobayashi 3-40, Tegano Shimowagi, Nakatsugawa City, Gifu Prefecture Mitsubishi Electric Engineering Co., Ltd. Nagoya Works Nakatsugawa Branch Office (72) Inventor Kenji Suzuki Gifu 3-40 Tegano Shimowage, Nakatsugawa City, Japan Mitsui Electric Engineering Co., Ltd. Nagoya Works Nakatsugawa Branch Office (72) Inventor Haruhiko Tamagaki 3-40 Tegano Shimowage, Nakatsugawa City, Gifu Prefecture Mitsubishi Electric Engineering Co., Ltd. Nagoya Works Nakatsugawa Branch Office (72) Inventor Kazuhito Kojima 3-40 Tegano Shimowagi, Nakatsugawa City, Gifu Prefecture Mitsubishi Electric Engineering Co., Ltd.Nagoya Works Nakatsugawa Branch Office (72) Inventor Shigetoshi Hibino Gifu Prefecture Nagoya Works, Mitsubishi Electric Engineering Co., Ltd. Inside the Nakatsugawa branch (56) References JP-A-4-137 (JP, A) JP-A-2-247435 (JP, A) Fully open 58-74023 (JP, U) Fully open 61-6117 (JP, A) U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 6/04 F24F 6/00 301 F24F 3/14

Claims (4)

(57) [Claims] 1. A set of a suction port and a discharge port are respectively provided on the indoor side and the outdoor side, and an air supply passage communicating one of the suction ports and one of the discharge ports is provided in the interior thereof; A main body box defining an exhaust passage for communicating the other one with the other one of the outlets, an exhaust blower incorporated in the exhaust passage and forming an exhaust flow in the exhaust passage, An air supply blower that is incorporated and forms an air supply flow in the air supply passage, and each of the air supply passage and the exhaust passage is partially constituted by each working fluid passage, and is continuously connected between the exhaust flow and the air supply flow. Heat exchange element for efficient heat exchange, and a humidifying unit wound in rolls together with a spacing member that forms a ventilation passage through a water-permeable bag made of moisture-permeable material
One the air conditioning ventilator, water supply to the humidification section, a humidifier disposed facing the supply passage between said air supply blower and the air supply passage outlet, it is provided close to the humidifier A humidifying water supply system comprising a tank, a solenoid valve, a water supply pipe, and the like, provided below the humidifier, with a drain pan having a drain port on the bottom side, and a part incorporating the humidifier. An air-conditioning ventilator having an eave-shaped waterproof structure for guiding water into the drain pan with respect to an inner wall surface forming a space. 2. The air-conditioning ventilator according to claim 1, wherein the humidifier is provided with a return tube connected to an upper portion of the water supply tank at the end of the water bag by a transparent tube. 3. A humidifier, wherein a mesh member smaller than water droplets is provided on an outlet side of a ventilation path through which a supply air flow of the humidifier passes .
Claim 1 or Claim constituted so that a water droplet may not pass.
3. The air-conditioning ventilator according to 2 . 4. The drain pan is provided with a water detector for detecting when water accumulates at a water level higher than the center level of the substantially inner diameter of the drain port at that time. ~
The air-conditioning ventilator according to claim 3 .