JPH065544Y2 - Heat exchange ventilator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a heat exchange ventilator, and more particularly to the arrangement of suction ports, air outlets and blowers provided indoors and outdoors.

[Prior Art] FIG. 4 is an exploded perspective view showing a conventional heat exchange ventilation device disclosed in, for example, Japanese Utility Model Laid-Open No. 167954/1985, in which (1) is a box body (2) and a lid body. A box consisting of (3) and
The suction ports (4), (5) and the air outlets (6), (7) are provided in pairs on the indoor side and the outdoor side, respectively. (8) and (9) extend from the indoor-side suction port (4) provided in the box body so as to intersect between the suction port and the blow-out port to the outdoor side blow-out port (7) An air supply passage extending from the exhaust passage and the outdoor inlet (5) to the indoor outlet (6), and (10) a centrifugal fan that forms an exhaust flow provided in the exhaust passage (8),
(11) is a centrifugal fan provided in the air supply passage (9) for forming an air supply, and (12) is shown in Japanese Patent Publication No. 47-19990, which is provided so as to be insertable into and removable from the intersection. A heat exchanger for exchanging temperature and humidity between the air supply flow and the exhaust flow, 13 each of the centrifugal fans (10) and (11) blade casings, and (14) the heat exchanger (12). Is a cover that closes the insertion / removal opening, and is provided on the same side wall where the suction port and the blowout port are provided. (15) is the above suction port (4), (5)
And a connecting member for the air supply and exhaust ducts provided at the air outlets (6), (7).

The conventional heat exchange ventilator is configured as described above, and by operating the centrifugal fans (10) and (11), the indoor air is supplied from the indoor inlet (4) to the box (1 ), It passes through the heat exchanger (12) in the exhaust passage (8) as indicated by arrow (b) to arrow (c), and is blown out from the outdoor outlet (7) as indicated by arrow (d) and discharged to the outside. To be done. On the other hand, the outdoor air is sucked into the box (1) through the inlet (5) on the outdoor side as shown by the arrow E, and passes through the heat exchanger (12) in the air supply passage (9) as shown by the arrow. The air is blown out from the air outlet (6) on the indoor side as shown by the arrow G to supply air to the room. At this time, heat exchange is performed in the heat exchanger (12) between the exhaust flow and the supply air flow, and the exhaust heat is recovered to reduce the heating and cooling load. By operating in this way, the heat exchanger (12) becomes dirty, but to clean it, remove the cover (14) provided on the box (1) and pull out the heat exchanger (12).
It is designed to be done by a vacuum cleaner or the like.

Further, FIG. 5 is a plan sectional view showing a conventional heat exchange ventilator disclosed in, for example, Japanese Utility Model Laid-Open No. 59-105928, in which (10) is a centrifugal fan forming an exhaust flow, and (1)
1) is a centrifugal fan that forms a supply air flow, and 12 is a heat exchanger.

In the conventional centrifugal fan, the air intakes (10a) (11a) are opened to the heat exchanger (12) side and the air intakes (10a) and (11a) are opened.
a) Install the blade motor (36) at the position facing the (11a)
c) (11c) motor (36) and air intake (10a) (11a)
Is arranged so as to maintain a gap through which the air flow passes.

With this arrangement, the electric motor located on the air supply passage or the exhaust passage is cooled by the air flow.

[Problems to be Solved by the Invention] In the conventional heat exchange ventilator as described above, the actual opening 60-
In the case of the one disclosed in Japanese Patent No. 167954, for example, the air intake port (11a) of the centrifugal fan (11) was located on the heat exchanger side. It must be provided on the opposite side of (11a), that is, on the opposite side of the heat exchanger (12), and in order to perform maintenance of the electric motor, an opening is made in the side wall of the box facing the electric motor.
(1a) had to be established. There are two types of electric motors, one for intake and the other for exhaust, and when the opening for the heat exchanger is included, three openings are required on the side wall, and there is a problem that a wide working space is required around the box body.

In the case of the one disclosed in Japanese Utility Model Laid-Open No. 59-105928, the air intakes (10a) (11a) of the centrifugal fans (10) (11) are used.
Install the mounting feet (10c) (11c) in front of and place the electric motor (36),
After taking out the heat exchanger (12), maintenance of the electric motor (36) can be performed using the space where the heat exchanger (12) was arranged, but in this case, the electric motor (36) and its Since the mounting feet (10c) (11c) create air path resistance in front of the air intakes (10a) (11a), lengthen the mounting feet (10c) (11c) to increase the electric motor (36).
And the air intake (10a) (11a) must be kept at a distance to facilitate the intake of air flow, the electric motor itself must be small, and the fluid resistance must be small. There is a problem that the size is large and the cost is high.

The present invention has been made in order to solve the above problems, and an object thereof is to obtain a heat exchange ventilator in which the air passage resistance is small and the depth dimension of the box body is small.

[Means for Solving the Problem] A heat exchange ventilator according to the present invention has an indoor-side suction port and a blow-out port on one of opposite side surfaces, and an outdoor-side suction port and a blow-out port on the other side. A box body having the same, an air supply passage and an exhaust passage, which are provided in the box body so as to intersect between the suction port and the air outlet, and which communicate between the indoor side and the outdoor side, and the air supply passage and the exhaust gas. Centrifugal fans that form a supply air flow or an exhaust air flow that are respectively provided in the passage and heat that exchanges heat between the supply air flow and the exhaust flow that is detachably installed through an opening provided on the side surface of the box body. And an electric motor for driving the centrifugal fan is arranged on the side of the heat exchanger, the air inlet of the centrifugal fan being opened on the side opposite to the heat exchanger.

[Operation] In this invention, the air intake of the centrifugal fan opened on the side opposite to the heat exchanger sucks the air flow passing through the heat exchanger around the centrifugal fan, thus obstructing the air passage to the electric motor. Never be.

In addition, by arranging the electric motor on the heat exchanger side, there is no need to provide a distance between the electric motor and the centrifugal fan to secure the air passage, the rotating shaft of the electric motor can be short, and the rotating shaft and bearings are strong. It is possible to adopt a configuration that does not impose a physical burden.

[Embodiment] FIGS. 1 to 3 are views showing an embodiment of the present invention, FIG. 1 is a perspective view with a lid removed, FIG. 2 is a plan view showing the flow of wind, and FIG. It is a side view of FIG. In the figure (1)
~ (15) shows the same or equivalent part as the above conventional example,
Each room is provided in the (1) by the partition plate (16), and the (21) has four rooms (17), (1) by inserting the heat exchanger (12).
8), (19), (20) are formed in the heat exchanger chamber, (22) is the above chamber (1
7) and the partition plate (16) with an opening (23) in communication with the rotating shaft, which is arranged so that it is orthogonal to the insertion / removal direction of the heat exchanger (12). In the internally installed exhaust blower chamber, an outdoor air outlet (7) is provided at the end of the blade casing (13). (24) is an air supply in which a rotary shaft, which is provided with an opening (25) in the partition plate (16) and the chamber (18), is connected so that the rotating shaft is orthogonal to the insertion / removal direction of the heat exchanger (12). In a supply air blower chamber in which a centrifugal fan (11) for air conditioning is installed, an indoor air outlet (6) is provided at an end of a blade casing (13). (26) is the above room (19)
And the partition plate (16) provided with an opening (not shown) for communication therewith, which is an outdoor suction chamber provided in the lower and side portions of the exhaust blower chamber (22), and an outdoor suction port (5) on the side wall. Is provided.
(27) is an indoor side suction passage provided in the lower part of the air supply blower chamber (24) which is communicated with the chamber (20) by opening (28) in the partition plate (16), and (29) is this The indoor suction chamber communicates with the indoor suction passageway (27) by providing an opening (30), and the sidewall has an indoor suction port (4). Reference numeral (31) is a bypass passage provided on the side of the heat exchanger chamber (21), which is opened in the partition plate (16) (3
2) and (33) are provided, and the exhaust blower chamber is provided through the chamber (17).
The (22) communicates with the indoor suction chamber (29). (34) is a damper provided in the indoor suction chamber (29), which is rotatably formed so as to open either one of the opening (30) and the opening (33) and close the other. The movement is performed by an electromagnet or an electric motor. The indoor suction port (4) and the outdoor air outlet (7) are provided on the side wall of the box body (1) in a direction orthogonal to the insertion / removal direction of the heat exchanger (12). An inlet (5) on the outdoor side and an outlet (6) on the indoor side are provided on the side wall facing the side wall. Further, as described above, the electric motor rotating shafts of the centrifugal fans (10) and (11) are connected to the heat exchanger (12).
Is provided so as to be orthogonal to the insertion / removal direction of the box body (1), and the wind is discharged in parallel with the insertion / removal direction of the heat exchanger (12) from the relationship of the blade casing (13), and then bent at a right angle, Indoor air outlet
(6) and the air outlet (7) on the outdoor side. Reference numerals (35) and (36) denote electric motors for driving the centrifugal fans (10) and (11) attached to the side walls of the blade casings (13).

The heat exchange ventilator configured as described above has a heat exchanger (1
For air conditioning ventilation using (2), the room air is removed by operating the centrifugal fans (10), (11) with the damper (34) closing the opening (33) and opening the opening (30). It is sucked into the indoor suction chamber (29) through the duct from the indoor suction port (4), and the opening (30) → indoor suction passage (27) → opening (23)
→ It passes through the exhaust passage (8) leading to the exhaust blower chamber (22), is blown out from the air outlet (7) on the outdoor side by the centrifugal fan (10), and is discharged to the outside through the duct. Outdoor air is sucked into the outdoor suction chamber (26) from the outdoor suction port (5) through the duct, and the chamber (19) → heat exchanger (12) → chamber (18) → opening (25) → supply. The centrifugal fan (11) passes through the air supply passage (9) leading to the air blower room (24).
Thus, the air is blown out from the air outlet (6) on the indoor side and is supplied to the room through the duct. At this time, in the heat exchanger (12), heat exchange is performed between the exhaust air flow and the supply air flow to recover the exhaust heat and reduce the heating and cooling load. On the other hand, during the intermediate period such as spring and autumn when air conditioning is not required, the damper (34) is
By rotating the centrifugal fans (10) and (11) by rotating the and closing the opening (30) and opening the opening (33), the outside air is supplied in the same manner as the air conditioning ventilation described above. However, the indoor air is sucked into the indoor suction chamber (29) from the indoor suction port (4) through the duct, and the opening (33) → bypass passage (31) →
Opening (32) → Room (17) → Opening (23) → Passing the bypass ventilation path leading to the exhaust blower room (22), blown out from the air outlet (7) on the outdoor side by the centrifugal fan (10) and passing through the duct. It is discharged outdoors. In this way, since the exhaust flow does not pass through the heat exchanger (12), the resistance in the ventilation passage is reduced, and sufficient normal ventilation is performed. The heat exchanger (12) becomes dirty and needs to be cleaned by performing the air conditioning ventilation or the normal ventilation as described above, but the cover (14) provided on the box body (1) is removed and the heat exchanger (12) is removed. ) Can be cleaned with a vacuum cleaner, etc., and the heat exchanger (12) can be inserted and removed in the direction of formation of the inlets (4), (5) and the outlets (6), (7). Since it is performed so as to be orthogonal to each other, the piping for air supply and exhaust does not interfere. Also,
Since the rotary shafts of the centrifugal fans (10) and (11) are provided orthogonally to the insertion / removal direction of the heat exchanger (12), the large-sized vane casing (13) allows the heat exchanger (12) to ) And the depth dimension of the box body (1) becomes smaller accordingly. Further, in the structure of this example, since the driving electric motors (35) and (36) are attached to the inner side wall of each blade casing (13), the driving electric motors (35) and (3) are
6) Or when the centrifugal fan (10), (11) is defective, remove all or part of the partition plate (16) and inspect them from the heat exchanger (12) attachment / detachment port. Can be exchanged.

Further, since the air intake ports (10a) and (11a) of the blower are located on the side opposite to the heat exchanger (12) of the blade casing (13), the air flow goes around the blade casing (13) and is taken into the air intake port. Therefore, the mounting feet or the mounting base of the driving electric motors (35), (36) that are provided on the heat exchanger side and are not located on the air passage do not need to have a special shape to reduce the fluid resistance, and are simple. The mounting structure is good, but the drive motor is still on the heat exchanger side.
It is possible to expect the same cooling effect on the driving electric motors (35), (36) as those provided with (35), (36) and the air intake port. Also, conventionally, the electric motor located on the heat exchanger side stands in the center of the air intake port of the blower, which is also facing the heat exchanger side.Therefore, the mounting feet maintain the distance between the electric motor and the air intake port. Although the air flow is taken in from the air intake port in this embodiment, the air intake ports (10a), (1
Since 1a) is on the outer wall side opposite to the electric motors (35), (36), it is not necessary to keep a distance between the electric motors (35), (36) and the blades.
Since the mounting legs of the drive motors (35) and (36) and the length of the rotating shaft are short, the strength of the shaft and the bearing is also advantageous.

[Effects of the Invention] As described above, the present invention provides a box body having an indoor suction port and an air outlet on one of the opposite side surfaces and an outdoor air intake port and an air outlet on the other side, and An air supply passage and an exhaust passage, which are provided in the box so as to intersect between the suction port and the air outlet, and which communicate between the indoor side and the outdoor side, and the air supply passage and the exhaust passage, respectively. A centrifugal fan that forms a supply air flow or an exhaust flow, and a heat exchanger that is provided to be insertable and removable from an opening provided on the side surface of the box and that exchanges heat between the supply air flow and the exhaust flow, The air intake of the centrifugal fan is opened on the side opposite to the heat exchanger, and the electric motor for driving the centrifugal fan is arranged on the heat exchanger side. As the motor becomes smaller It is not necessary to form a special shape to reduce the cost, and the effect that the cost can be reduced can be obtained. Further, since the electric motor and the air intake of the centrifugal fan are located on the opposite side, the electric motor and the centrifugal fan can be brought close to each other, and the size of the box can be reduced.

[Brief description of drawings]

1 is a perspective view showing an embodiment of the present invention with a lid removed, FIG. 2 is a plan view showing the same wind flow, FIG. 3 is a side view of FIG. 2, and FIG. Is an exploded perspective view showing a conventional heat exchange ventilator, and FIG. 5 is a plan sectional view showing the conventional heat exchange ventilator. In the figure, (1) is a box,
(4) is an indoor inlet, (5) is an outdoor inlet, (6) is an indoor outlet, (7) is an outdoor outlet, (8) is an exhaust passage,
(9) is an air supply passage, (10), (11) are centrifugal fans, (10a), (11a)
Is the air intake of the centrifugal fan, (12) is the heat exchanger, (35),
(36) is a driving electric motor. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] 1. A suction port (4) on the indoor side on one of the opposite sides.
And a blow-out port (6), on the other hand a box body (1) having an outdoor-side suction port (5) and a blow-out port (7), and the suction port (4) in the box body (1). ) (5) and the air outlets (6) (7) are provided so as to intersect with each other, and an air supply passage (9) and an exhaust passage (8) communicating between the indoor side and the outdoor side, and these supply passages. Centrifugal fan (11) or (10) for forming a supply air flow or an exhaust flow provided in the air passage (9) and the exhaust passage (8), respectively, and detachably provided through an opening provided on the side surface of the box body. And a heat exchanger (12) for exchanging heat between the supply air flow and the exhaust flow, and the air inlets (10a) (11a) of the centrifugal fans (11) (10) are connected to the heat exchanger (12). ) And an electric motor (36) (35) for driving the centrifugal fans (11) (10) while being opened on the side opposite to the heat exchanger (12) side.