JPH01189446A - Ceiling embedded type ventilating device - Google Patents

Abstract

PURPOSE:To unify ventilation in a heat exchanging element to exchange heat efficiently, by disposing two orthogonal ventilating surfaces of the heat exchanging element facing to a suction chamber and an exhaust chamber. CONSTITUTION:Suction air, coming from the outside of a house, enters into an atmosphere suction port 29 and flows to a suction chamber 23 through a suction fan 20 when the suction fan 20 and an exhaust fan 24 are operated. The width of the discharging port 22 is made so as to be same substantially as the passing area of an heat exchanging element 28, therefore, the air passes through the heat exchanging element 28 uniformly when it passes through the heat exchanging element 28 in the suction chamber 23 whereby the air is blown off into a room through an indoor blow-off port 30 with the large flow rate of passing air. When indoor air is discharged, a part of the indoor air enters into an indoor exhaust port 31 and flows to an exhaust chamber 27 through an exhaust fan 24 and a discharging port 26 by the operation of the exhaust fan 24. The width of the discharging port 26 is made so as to be same as the width of the passing surface of the heat exchanging element 28 substantially, therefore, the exhaust air passes through the heat exchanging element 28 uniformly and is discharged to the outside of the house through an outdoor exhaust port 32.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ceiling-embedded ventilation system installed in the attic of a building or the like.

2. Prior Art Conventionally, this scale ventilation device was already known in Japanese Utility Model Publication No. 64-421.
Many such structures as those disclosed in Publication No. 25 have been proposed.

That is, as shown in FIG. 3, the ventilation unit 2 is formed into a flat outer casing and is suspended in the attic 1. As shown in FIG. The ventilation unit 2 is provided with a heat exchange element 3 inclined at 458 degrees in the center. An intake fan 4 is housed on both sides of the heat exchange element 3, and an exhaust fan 5 is housed on the other side. Further, one side of the outer casing is provided with an indoor air intake port 6 and a pair of intake and exhaust ports for an outside air blowout lower, and the other side is provided with a plurality of air intake ports connected to the exhaust port 1o and the air intake port 11 of the outer wall 8. It is equipped with a duct 9. Then, by operating the exhaust blower 5, indoor air is sucked through the indoor intake port 6, passes through the heat exchange element 3, and is discharged outdoors from the exhaust port 10, while fresh air is removed by operating the intake blower 4. As a result, fresh air from outside flows in through the intake port 11, passes through the heat exchange element 3 via the duct 9, recovers the heat of the air being exhausted, and passes through the intake blower 4 to the outside air blowing lower. It was designed to blow more air into the room.

Problems to be Solved by the Invention In such a conventional configuration, the advantage of making the main body 2 a thin and flat outer casing by tilting the heat exchange element 3 by 46 degrees is as follows. However, since the intake surfaces 3a, 3b and the exhaust surfaces sc, 3d of the heat exchange element 3 are inclined at 45 degrees, the respective intake and exhaust surfaces 3a
~3d ventilation is not uniform, for example, the air intake surface 3a
In the lower part 12 of the main body 2, a vortex is generated between the air volume and the lower surface 13 of the main body 2 to be sucked by the intake blower 4.
There is little ventilation. This is because at each suction side corner of the heat exchange element 3, not only the lower part 12 but also some vortices and resistance occur at each corner, so the amount of air flowing is large at the center of each surface and at the corner. As a result, there was a problem that the heat exchange element 3 could not be used effectively and ventilation could not be uniform.

The present invention has been made to solve these problems, and aims to provide a ventilation system that achieves uniform ventilation in a heat exchange element and allows efficient voice exchange.

Means for Solving the Problem In order to solve this problem, the present invention forms an intake flow path having an intake blower in the main body, and an exhaust flow path having an exhaust blower perpendicular to this, and An intake chamber and an exhaust chamber are formed on the discharge side of the blower and the discharge side of the exhaust blower, respectively, and the openings are at right angles to each other, and the opening width is approximately the same as the width of the ventilation surface of the heat exchanger. This is a ceiling-embedded ventilation system in which two perpendicular ventilation surfaces of a heat exchange element correspond to an exhaust chamber and an exhaust chamber.

With this configuration, the intake air flow path from the outdoors is directed from the intake blower to the outside air inlet, from the outlet of the intake blower, through the intake chamber, through the heat exchange element, and from the indoor air outlet straight into the room. The air is blown inward, and the exhaust flow path is passed through an exhaust blower, an indoor exhaust port, an exhaust port of the exhaust blower, an exhaust chamber, and a heat exchange element, where the heat in the intake flow path and Heat is exchanged and the air is exhausted linearly to the outside from the outdoor exhaust port, resulting in uniform ventilation of the intake and exhaust flows.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, reference numeral 19 denotes a main body suspended in a circle in the ceiling 18 in FIG.
A discharge port 22 of the intake blower 2o is opened in the motor plate 21, and an intake chamber 23 is formed on the discharge side thereof.

On the other hand, an exhaust blower 24 is attached to a second motor plate 26, a discharge port 26 of the exhaust blower 24 is opened in the second motor plate 26, and an exhaust chamber 27 is provided on the discharge side.
is formed. and the first motor plate 21;
The second motor plate 26 also serves as a partition plate, and an intake flow path A shown by arrow A and an exhaust flow path B shown by arrow B are formed.

The intake chamber 23 and the exhaust chamber 27 have a perpendicular positional relationship, and a heat exchange element 28 is provided so that the perpendicular surfaces thereof correspond to each other. In this way, the intake flow path A
The main body 19 forming the exhaust flow path B has an outside air intake port 29 that connects to a duct (not shown), and an outside air intake port 29 that also connects to a duct (not shown) at a position that communicates almost linearly with the outside air intake port 29. An indoor air outlet 3o is provided so as to blow air to the indoor side. Further, an indoor exhaust port 31 connected by a duct (not shown) to exhaust indoor air, and an outdoor exhaust port 32 formed as an exhaust flow path B and serving as an exhaust port for indoor air are provided. The heat exchange element 28, as shown in FIG.
A lid body 34 is provided on the bottom surface 33 of the main body 19, an inspection hole 36 in the ceiling portion 35 is opened, and the lid body 34, which is secured with a screw 37, is removed, and then the heat exchange element 28 is attached or removed. . 38 is an electrical equipment section.

In the above configuration, by operating the intake blower 20 and the exhaust blower 24, the intake air from outside flows into the outside air intake port 29, passes through the intake blower 20, and then enters the discharge port 2.
2 and reaches the intake chamber 23. When attempting to pass through the heat exchange element 28 from here in this intake chamber 23, the width of the discharge port 22 and the passage surface of the heat exchange element 28 are made almost the same, so that the air passes through the heat exchange element 28 uniformly. , the amount of passing air is increased and the air is blown into the room through the indoor air outlet 3o.

Next, by operating the exhaust blower 24 to exhaust air from the room, a portion of the indoor air flows through the indoor exhaust port 31, passes through the exhaust blower 24, and reaches the exhaust chamber 27 from the discharge port 26. In this exhaust chamber 27, when the air is about to pass through the heat exchange element 28, the width of the discharge port 26 and the passage surface of the heat exchange element 28 are made almost the same, so that the air is uniform. The air passes through the heat exchange element 28, increases the passing air volume, and is exhausted outdoors from the outdoor exhaust port 32.
8, the heat is exchanged and the heat is recovered using the air during intake.

In this way, the intake flow path A and the exhaust flow path B are formed at almost right angles, the intake chamber 23 and the exhaust chamber 27 are formed at right angles, and the heat exchange element 28 is provided at the right angle position. In addition, the heat exchange element 28 is regularly maintained and replaced, but at this time, the inspection hole 36 shown in FIG. 2 is opened and the screw 37 is removed. Then, remove the lid 34 and pull out the heat exchange element 28 downward. Also, when installing them, install them in the reverse order.

Effects of the Invention As is clear from the description of the embodiments described above, in the present invention, the amount of air passing through the heat exchange element is averaged for both intake and exhaust, thereby increasing the amount of ventilation and increasing the heat exchange efficiency.

[Brief explanation of the drawing]

Fig. 1 is a plan sectional view of a ceiling-embedded ventilation system according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of the same Oi-embedded ventilation system, and Fig. 3 is a cross-sectional view of a conventional ceiling-embedded ventilation system. FIG. 19... Body, 20... Intake blower, 2
1...First motor plate, 22.26...
Discharge port, 23...Intake chamber, 24...
Exhaust blower, 25...Second motor plate, 27
... Exhaust chamber, 28 ... Heat exchange element, 33 ... Bottom plate, 34 ... Lid body, A ...
...Intake flow path, B...Exhaust flow path. Bar 1g body 20-Nujitomo f tane tsuba 2f--rj motor provisional 2L2f; ---υ1 exit? 3---g Socico 12. Rayanno C-28--Ichikako Kio Takashi is Toha D Anti-Qi=j Tadasu Road Figure 3

Claims (1)

[Claims] An intake flow path having an intake blower in the main body, and an exhaust flow path having an exhaust blower perpendicular to the intake flow path are formed in the main body, and are arranged at right angles to each other on the discharge side of the intake blower and the discharge side of the exhaust blower. An intake chamber and an exhaust chamber each having an opening and a mouth width approximately equal to the width of the ventilation surface of the heat exchanger are formed, and two perpendicular ventilation surfaces of the heat exchange element are made to correspond to the intake chamber and the exhaust chamber. Ceiling recessed ventilation system.