JPH065543Y2 - Ventilation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a ventilation device for supplying and exhausting air.

[Prior Art] FIG. 5 is an exploded perspective view showing a conventional 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 (3). ) And a suction port
(4) (5) and outlets (6) and (7) are provided for the indoor side and the outdoor side, respectively. (8) and (9) are provided with a partition wall (10) in the box body and the indoor side inlet (4) provided so as to intersect between the inlet and the outlet, the outdoor outlet An exhaust passage leading to (7) and an air supply passage extending from the outdoor suction port (5) to the indoor outlet (6), and (11) is a centrifuge which is provided in the exhaust passage (8) and forms an exhaust flow. An exhaust blower including a fan, (12) an air blower including a centrifugal fan provided in the air supply passage (9) to form an air supply, (1)
3) is provided at the intersection, and is detachably provided in the box body, for example, as shown in Japanese Patent Publication No. 47-19990, for performing temperature exchange and humidity exchange between the air supply flow and the exhaust air flow. Heat exchanger, (14) (15) is the blower (11) (12)
The blade casing is formed symmetrically. (16)
Is a cover that closes the insertion / removal opening of the heat exchanger (13), and is provided on the same side wall where the suction port (5) and the blowout port (4) are provided. Reference numeral (17) is a connecting member for the air supply and exhaust ducts provided at the suction ports (4) and (5) and the air outlets (6) and (7).

The conventional ventilator is configured as above, and the exhaust blower
By operating (11) and the air supply blower (12), the indoor air is sucked into the box (1) from the indoor suction port (4) as shown by the arrow a, and the air inside the exhaust passage (8) is drawn. The heat exchanger (13) passes from the arrow B to the arrow C, is blown out from the outdoor outlet (7) as the arrow D, and is discharged to the outside of the room. On the other hand, the outdoor air is sucked into the box (1) from the outdoor suction port (5) as shown by the arrow E, and passes through the heat exchanger (13) in the air supply passageway (9) as shown by the arrow. The air is blown out from the indoor side outlet (6) as shown by the arrow G to supply the air to the room. At this time, heat exchange is performed in the heat exchanger (13) 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 (13) becomes dirty, but to clean it, remove the cover (16) provided on the box body (1) and pull out the heat exchanger (13), clean it, etc. It is supposed to be done by. Further, the exhaust blower (11) and the air supply blower (12) are installed by symmetrically positioning the vane casings (14) and (15) inside the box body (2), and installing the blower body outside the box body (2). It is designed to be assembled by inserting from above and screwing.

[Problems to be Solved by the Invention] In the conventional ventilation device as described above, the exhaust side vane casing (14) and the air supply side vane casing (15) are line-symmetrical with the heat exchanger (13) interposed therebetween. Since it is formed, it is easy to make a mistake when assembling into the box body (1), and the blade casings (14) and (15)
Two types of molding dies are required. Further, because of the line-symmetrical shape, the rotation direction of the blower must be reversed, and there is a problem that two types of electric motors are required.

The present invention has been made to solve the above problems, and an inexpensive ventilation device in which the exhaust side vane casing and the air supply side vane casing can be molded by the same mold and the same electric motor can be used is obtained. The purpose is to

[Means for Solving the Problems] A ventilator according to the present invention is a box having an indoor-side suction port and an outlet on one of opposite sides and an outdoor-side suction port and an outlet on the other side. A body, an air supply passage and an exhaust passage formed by providing a partition wall in the box body to communicate between the indoor side and the outdoor side, and air supply passages provided to and connected to the air supply passage and the exhaust passage, respectively. An air supply centrifugal fan and an exhaust air centrifugal fan that form a supply air flow or an exhaust flow are arranged so that the direction of air blown out from the outlet of the passage or the exhaust passage and the rotation axis are substantially parallel to each other. The blade casings for accommodating the blades of the centrifugal fan for exhaust and the centrifugal fan for exhaust are formed in the same shape with a synthetic resin.

[Operation] In the present invention, since the blade casings of the air supply centrifugal fan and the exhaust air centrifugal fan are formed of the same shape by the synthetic resin, only one type of molding die is required, and the electric motor is also the same. It is only necessary to use two pieces, and the assembling workability is good.

[Embodiment] FIGS. 1 to 4 are views showing an embodiment of the present invention.
1 is a perspective view with a lid removed, FIG. 2 is an exploded perspective view of internal components, FIG. 3 is a plan view showing the flow of wind, and FIG. 4 is a side view of FIG. In the figure, (1) to (9), (11) to (1
3), (16) and (17) show the same or corresponding portions as the above conventional example, and (20) is a guide member that is attached to the box body (1) and guides and supports the heat exchanger (13). An exhaust blower equipped with a mounting fan (22) for mounting 21) and a centrifugal fan.
A shield plate (23) is provided on the (11) side. (24) is a box
A partition plate provided on the side of (1) so that a bypass passage (25) is formed, and has an opening (26) and a shielding plate (23). (27) is a damper for opening and closing the bypass passage (25), (28)
Is a vane casing of an air supply blower (12) and an exhaust blower (11) consisting of a centrifugal fan, and each vane casing is formed of low foamed resin in the same shape, and the vane casing part ( A supply / exhaust passage is formed from 30) to the air outlet (6) (7). Reference numeral (31) is a partition wall that partitions the inside of the box body (1) so as to form an exhaust passage (8) and an air supply passage (9), and (32) is an auxiliary plate that covers a side portion of the blade casing (28). . The air supply blower (12) and the exhaust air blower (11) are arranged such that the rotating shafts are parallel to the blowing directions from the indoor side outlet (6) and the outdoor side outlet (7). Therefore, the air flow passing through the centrifugal fan changes its direction toward the air outlet, at which time the air flow is pressure-equalized and the dynamic pressure loss at the air outlet is reduced.

The ventilation device configured as described above is an exhaust blower (11).
By operating the air supply blower (12), the outdoor air is sucked from the outdoor suction port (5) as shown by arrow A,
The air supply passage (9) of the blade casing (28) passes through the heat exchanger (13) to reach the blade casing (28) on the opposite side with the heat exchanger (13) sandwiched between the air supply blower (12). Due to the indoor air outlet
It is blown out from (6) as shown by arrow B. On the other hand, the indoor air is sucked in from the indoor suction port (4) as shown by arrow C, passes through the heat exchanger (13) from the exhaust passage of the blade casing (28), and faces this heat exchanger (13). Side vane casing (2
8), the blower for exhaust (11) blows out from the outdoor outlet (7) to the outside as indicated by arrow D. At this time, in the heat exchanger (13), heat exchange is performed between the exhaust flow and the supply air flow to recover the exhaust heat and reduce the heating and cooling load. On the other hand, in the middle period such as spring and autumn when air conditioning is not required, the damper (27) is rotated to open the bypass passage (25) to open the blowers (11).
By operating (12), the outdoor air is supplied to the room in the same way as the above-mentioned air conditioning ventilation, but the indoor air is sucked from the indoor side intake port (4) and passes through the bypass passage (25). From the opening (26), the blower for exhaust (11) is used to blow out air
It is blown out from (7). Thus, the exhaust flow is a heat exchanger
(13) Since it does not pass through, the resistance in the ventilation passage is reduced and sufficient normal ventilation is performed.

Next, the assembly will be explained. An auxiliary plate is attached to the box body (2).
Along with the (32), the blade casing (28) is inserted at both ends, and the mounting feet (22) are mounted with the electric motor (21) and the blade (29).
The guide members (20) having the above are attached to the box body (2) so as to face each other. The heat exchanger (13) is inserted along the guide member (20) and the cover (16) is attached. Finally, the assembly is completed by attaching the lid (3). By making the vane casing (28) the same shape during this assembly work,
Assembly direction / position is not limited, workability is good, and if the partition wall for forming the air supply / exhaust passage is integrally formed with the blade casing (28) as shown in FIG. 2, the number of parts of the partition wall can be reduced. Can be done, and the assembly time can be shortened. Further, by integrally forming the blade casing (28) from the blade casing portion (30) to the air outlets (6) and (7), the number of parts is reduced, and the assembly is facilitated and the assembly work is reduced accordingly. Errors and mistakes will be reduced.

[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 formed by providing a partition wall inside the box and communicate with the inside and the outside of the box, and an air supply passage or an exhaust passage provided and connected to the air supply passage and the exhaust passage, respectively. The air supply centrifugal fan and the exhaust air centrifugal fan that form a supply air flow or an exhaust air flow arranged so that the direction of the air blown out from the air outlet and the rotation axis are substantially parallel to each other. By forming the vane casing that houses the vanes of the exhaust centrifugal fan in the same shape with synthetic resin, the exhaust side vane casing and the air supply side vane casing can be molded with the same mold, and the electric motor is also the same. Can be used It has the effect of being inexpensive.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same internal parts, FIG. 3 is a plan view showing the same wind flow, and FIG. 4 is a side view of FIG. FIG. 5 is an exploded perspective view showing a conventional ventilation device. In the drawings, the same reference numerals indicate the same or corresponding parts,
(1) is a box, (4) is an indoor suction port, (5) is an outdoor suction port,
(6) is an indoor air outlet, (7) is an outdoor air outlet, (8) is an exhaust passage, (9) is an air supply passage, (11) is an exhaust blower, (12) is an air supply blower, (28) is a blade casing, and (31) is a partition wall.

Claims (3)

[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), and a box body (1) having an outdoor suction port (5) and a blow-out port (7) on the other side, and a partition wall (31) provided in the box body The air supply passage (9) and the exhaust passage (8) that communicate between the indoor side and the outdoor side, and the air supply passages (9) and the exhaust passage (8) that are respectively provided and communicate with each other. aisle
(9) or a centrifugal fan for air supply, which forms an air supply flow or an exhaust flow arranged so that the direction of air blown out from the air outlets (6) and (7) of the exhaust passage (8) and the rotation axis are substantially parallel ( 12) and an exhaust centrifugal fan (11), and blade casings (2) in which the blades of the air supply centrifugal fan (12) and the exhaust centrifugal fan (11) are housed.
Ventilator characterized in that 8) is made of synthetic resin in the same shape. 2. The vane casing (28) and the partition wall (31)
The ventilation device according to claim 1, characterized in that and are integrally formed. 3. The outdoor suction port (5), the indoor air outlet (6), the indoor air intake port (4) and the outdoor air outlet (7) are substantially linear. The ventilation device according to claim 1 or 2, wherein the ventilation device is provided.