JPS62218747A - Ceiling embedded type ventilator - Google Patents

Abstract

PURPOSE:To obtain a ceiling embedded type ventilator, improved in maintenance and service and easy to assemble, by a method wherein a fan for supplying air and a fan for discharging air are accommodated into a casing upon assembling them under a condition that the upper panel of the casing is removed while the same fans are permitted to take them out from the same surface as a heat exchanger upon maintenance and service therefor. CONSTITUTION:A main body casing 1 is provided with a first side surface 1C1, provided with a supplying air blow-off port 7 and a discharging air blow-off port 5, a second side surface 1C2, provided with a discharging air suction port 8 and a supplying air suction port 6, and a fourth side surface 1C4, intersecting orthogonally to the first and second side surfaces. A U-shape side plate 1c, opened at the side of the third side surface 1C3 opposing to the fourth side surface 1C4, a bottom plate 1b and a bulkhead 1e, arranged in parallel to the first and second side surfaces and partitioning the inside of the main body casing 1 into a heat exchanger chamber at the side of the first side surface and a fan chamber at the side of the second side surface, are fixed to each other. An upper panel 1a is constituted so as to be capable of fixing it removably to the side plate 1c and the bulkhead 1e. The fan 12 for supplying air and the fan 13 for discharging air are attached detachably to the main body casing 1 and they are accommodated into the casing 1 from the upper side of the casing 1 upon assembling under a condition that the upper panel 1a is removed while they are taken out of and inserted into the casing 1 through the opening provided on the side surface 1c upon maintenance and service whereby the property of assembling, maintenance and service of the titled ventilator may be improved.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to an in-ceiling ventilation system with a simultaneous air supply and exhaust system equipped with a heat exchanger, and is particularly designed to improve maintainability and ease of assembly. Regarding ventilation equipment.

[Prior Art] FIG. 7 is a perspective view showing the external appearance of a conventional in-ceiling ventilation device disclosed in, for example, Japanese Utility Model Application Publication No. 54-141163 and Japanese Utility Model Application Publication No. 60-188947. FIG. 8 is a perspective view of the device with the inspection cover for maintenance service removed.

In the figure, (1) is a box-shaped main body casing attached to a ceiling etc. via a hanging fitting (2), (3) is an inspection cover for a heat exchanger, and (4) is an inspection cover for a blower.

(5) is an exhaust outlet that opens to the outdoor side through a duct (not shown), (6) is an air intake inlet that opens to the outdoor side via a duct, and (7) refers to these exhaust outlet (5). The air supply outlet is provided on the side surface opposite to the side surface of the main casing (1) where the air supply suction port (6) is provided, and opens into the room through a duct (not shown). Although not shown, on the same side of the casing as this air supply outlet (7), there is an exhaust air inlet (8) that opens to the indoor side through a duct.
) is provided. (9) is a heat exchanger that exchanges heat by passing supply air and exhaust air orthogonally to each other, and the main body casing ( 1) It is provided within.

(12) is a supply air blower, and (13) is an exhaust air blower.

In the above configuration, by driving each of the blowers (12) and (13), air supply from outside is sucked into the air supply suction port (6) through the duct, and the air is drawn into the heat exchanger (9) and the air blower 41 (12).
The air is then blown out from the supply air outlet (7) into the room via a duct. On the other hand, exhaust air from the room is sucked into an exhaust suction port (8) (not shown) through a duct, and is then sucked into a heat exchanger (9) (not shown).
), the air passes through the air blower a (13) and is blown out from the exhaust air outlet (5) to the outside of the room via the duct. At this time, the supply air and the exhaust air are heat exchanged by the heat exchanger (9).

When cleaning, inspecting or replacing the heat exchanger (9), insert your hand through the inspection opening made in the ceiling plate that covers the bottom of the ventilation system, and insert your hand into the inspection cover (3) of the heat exchanger inspection cover (3) on the main body casing (1). ) and pulled the handle (11) through the inspection port (10) to remove the heat exchanger (9).

On the other hand, for maintenance services such as inspection and troubleshooting of the blowers (12) and (13), the upper body is inserted through an opening in the ceiling plate, and the main body casing (which is different from the heat exchanger inspection cover (3)) is provided.
1) Remove the blower inspection cover (4) on the side and place it inside the ceiling.

[Problems to be Solved by the Invention] Since the conventional in-ceiling ventilation system is configured as described above, ceiling panels are installed at different positions for maintenance services for the blower and for maintenance services for the heat exchanger. It is necessary to provide an opening for inspection and an inspection space in the ceiling, and maintenance service for the blower requires placing one's upper body inside the ceiling, resulting in very poor maintenance serviceability.

This invention has been made to solve the above problems, and aims to provide an in-ceiling ventilation system that improves maintenance serviceability and is easy to assemble.

[Means for Solving the Problems] The in-ceiling ventilation device according to the present invention includes a box-shaped main body casing having a first air supply outlet and an exhaust air outlet.
a second side facing the first side and having an exhaust air inlet and an air intake inlet; A fourth side surface perpendicular to the second side surface, and a U-shaped side plate with an open third side surface opposite to the fourth side surface, a bottom plate, and arranged parallel to the first and second side surfaces. The partition wall that partitions the inside of the main body casing into the heat exchanger chamber on the first side surface side and the blower chamber on the second side surface side is fixed to each other, and the upper plate can be freely removed by screwing or the like to the side plate and the partition wall. It is constructed so that it can be fixed to the

[Function] In this invention, the supply air blower and the exhaust air blower are made removable from the main body casing, and are stored from above with the top plate removed during assembly, and can be taken in and out from the opening provided on the side during maintenance service. , improved ease of assembly and serviceability.

[Example code] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the outline of an embodiment of the present invention.

Figure 2 is a perspective view with the maintenance service cover removed, Figure 3 is a plan view with the top plate of the casing body removed, and Figure 4 is a sectional view taken from Figure 3 IV-IV. , FIG. 5 is an exploded perspective view with the top plate, inspection cover, and heat exchanger removed, and FIG. 6 is a perspective view showing the installation state in the ceiling.

In the figure, (1) is the main casing that constitutes the box, (1a) is its top plate, (lb) is the bottom plate, and (lc) is the main casing.
are the first side surface (lcl) and the second side surface (1c) facing each other.
2), and a fourth side (lC4) perpendicular to these sides (lcl) (lc2).
lc,). (le) is a partition wall that is arranged parallel to the first and second side surfaces (LC) (IC2) and divides the inside of the main casing (1) into two chambers;
The upper plate (1a), which is bent toward the Y) side, has a mounting flange (1eL). These U-shaped side plates (1c)
and flanges (lc,) and (let) of bulkhead (1e)
The upper plate (1a) is fixed by screws. A heat exchanger inspection cover (3) and a blower inspection cover (4) are removably attached to the maintenance service opening (1d) on the third side surface (1C3). (2) is a hanging fitting, (5)
is an exhaust outlet, (6) is an air intake inlet, (7) is an air intake outlet, (8) is an exhaust inlet, and each outlet (5) and (7) are the first inlet of the main body casing side plate (1c). Each suction port (6) (8) is located on the second side (lc) of the side plate (lc).
2) respectively. (9) is a heat exchanger, which is separated by a partition wall (1e) inside the main casing (1).
(12) is the supply air blower, (13) is the exhaust air blower, and the main body casing (1cm) is
) along the longitudinal direction of the heat exchanger (9). Each blower (12) (13)
are motors (12a) (13a), multi-blade blades (12b)
(13b), motor mounting plate (12c) (13c),
The lower fan casing (12d) is placed and fixed at intervals on this motor mounting plate (12c)' (13c).
13d), this lower fan casing (12d) (1
3d) upper fan casing (12
e) (13e), each of which has a box shape with an open top. The upper fan casings (12e) (13e) of these blowers (12) (13) have suction openings (12f) (13f) on the suction ports (6) and (8) sides.
Partition wall (le) Blowout opening (12g) (13g)
A peripheral wall (tzet) forming four box-shaped peripheral surfaces having (
13e,) and the suction side chamber (12i) (13i)
and an earthen wall (12e2) (12e2) that partitions the blowout side chamber (12j) (13j) and has an orifice part (12k) (13k) facing the central part of the blade (12b) (13b).
13e,) and the blowout side chamber (12j) (13j)
The upper fan casing (12e) of the air supply fan (12) is further provided with a partition wall (12e4) that partitions the suction side chamber (12i). ing. (14)
is a filter attached to the heat exchanger (9), (15)
is a slide guide (16) for pulling out the filter (9) to the maintenance service opening (1d) side of the main body casing;
(17) is a slide guide for pulling out the supply air blower (12) and the exhaust air blower (13) toward the opening (1d);
The supply air flow from the supply air blower (12) is transferred to the heat exchanger (9
), and a chamber (17b) that guides the exhaust flow from the lower left side in Figure 4 of the heat exchanger (9) to the exhaust outlet (5). The guide, (18) is an indoor air supply duct, and (19) is an outdoor air supply duct.

(20) is the indoor exhaust duct, (21) is the outdoor exhaust duct, (22) is the outer wall, (23) is the ceiling plate, (24)
) is the inspection door, (25) is the weather cover, (26) is the indoor grill, and (27) is the ceiling mount bolt.

Next, its operation will be explained. Each blower (12) (13)
By driving the air supply from outside, the air is supplied from the outside through the duct (19), the supply air suction port (6), the supply air blower (12), and the air guide (1
7) chamber (17a), the lower right side of the heat exchanger (9) (
Figure 4), filter (14), upper left side, supply air outlet (7
) and duct (18) to the indoor grill (26), and exhaust from the room is supplied through the duct (20) and exhaust suction port (8).

Through the exhaust blower (13), the upper right side of the heat exchanger 1 (9), the filter (14), the lower left side, the chamber (17b) of the air guide (17), the exhaust outlet (5), and the duct (21). It is discharged outside. These air supply and exhaust air are supplied by a mixer (
9) heat is exchanged.

To assemble the ventilation system with the above configuration, the main casing (
1) With the top plate (1a) removed, remove the bottom plate (lb).

A box-shaped supply air blower (12) and an exhaust air blower are placed on the slide guide (16) from above the flute body consisting of the U-shaped side plate (1c) and the partition wall (le). Store it. At this time, the flange (le□) of the U-shaped side plate (1c) is bent outside the heat exchanger room, and the bottom plate (lb), the U-shaped side plate (1c), and the partition wall (1e
) is fixed by welding, so the body casing (
There are no protrusions or obstructions above the slide guide (16) on the blower room side in 1), and the air blower a (12) (13)
) can be stored very easily from the top. After storing the blower, cover it with the top plate (1a), fix it to the side plate (1c) and bulkhead (1e) using flanges (lc,) (le,) with screws, and install the inspection covers (3) and (4) to complete. do. Further, after the main body casing (1) is assembled, the heat exchanger (9) is inserted and stored from the maintenance service opening (1d) along the slide guide (15). After installing this in the ceiling, in order to perform maintenance service, a service person should insert his/her hand through the inspection hole (24) provided in the ceiling plate (23) and install the inspection cover (3).
Or remove (4) and insert the heat exchanger (9) or blower (
12) (13) are taken out by pulling them out individually and lowered into the room through the inspection port (24) for maintenance and inspection. In this way, service openings (l) for heat exchangers and blowers are installed.
d) and the inspection covers (3) and (4) are placed on the same side (lc,) of the box-shaped main body casing ([), so the inspection opening (24) provided in the ceiling plate only needs to be at -. Furthermore, since each of the blowers (12) and (13) is taken outside for maintenance service, there is no need to work inside the ceiling, and there is no need for space within the ceiling for this purpose.

[Effects of the Invention] This invention is constructed as described above, and when assembling the air supply and exhaust blowers, they are stored from above with the above-mentioned upper plate removed, and during maintenance services, they are individually stored from the same side as the heat exchanger. Since it can be pulled out, assembly and maintenance services are extremely easy, and its workability is significantly improved.

[Brief explanation of drawings]

1 to 6 show one embodiment of this invention. Figure 1 is a perspective view showing its external appearance, Figure 2 is a perspective view with the maintenance service cover removed, Figure 3 is a plan view with the top plate of the casing body removed, and Figure 4 is a perspective view of the casing. I in Figure 3
5 is an exploded perspective view with the top plate, inspection cover, and heat exchanger removed, FIG. 6 is a perspective view showing the installation state in the ceiling, and FIG. 7 is the conventional FIG. 8 is a perspective view showing the external appearance of the in-ceiling ventilation system, with the inspection cover for maintenance service removed. In the figure, (1) is the main casing, (1a) is the top plate, (lb) is the bottom, (lc) is the U-shaped side plate, (le
t) is its first side, (IC2) is its second side,
(1c3) is the third side, (1c4) is the fourth side,
(le) is the bulkhead, (3) is the heat exchanger inspection cover, (4
) is the blower inspection cover, (5) is the exhaust outlet, (6)
is the air supply inlet, (7) is the air supply outlet, (8) is the exhaust air inlet, (9) is the heat exchanger, (12) is the air supply blower, (1
3) is an exhaust blower, (18) (19) (20) (
21) is a duct. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (4)

[Claims] (1) In an in-ceiling type ventilation system in which a heat exchanger, a supply air blower, and an exhaust air blower are installed in a box-shaped main body casing, and this main body casing is embedded in the ceiling, the above-mentioned main body casing is installed. A first side surface having an air supply outlet that opens to the indoor side through a duct and an exhaust air outlet that opens to the outdoor side, and an air intake inlet that faces this side surface and opens to the outdoor side through a duct, and the indoor side. It has a U-shape, consisting of a second side surface having an exhaust suction port opening to the side, and a fourth side surface perpendicular to the first and second side surfaces, with the third side surface facing the fourth side being open. A partition wall that is arranged parallel to the side plate, the bottom plate, and the first and second side surfaces and partitions the inside of the main body casing into a heat exchanger chamber on the first side surface side and a blower chamber on the second side side is mutually connected. The structure is such that the upper plate can be removably fixed to the side plate and bulkhead using screws, etc., and when the supply air blower and exhaust air blower are assembled, maintenance service is carried out from above with the upper plate removed. An in-ceiling ventilation device characterized in that it can be sometimes pulled out from the third side opening and stored in the blower chamber of the main body casing. (2) The in-ceiling ventilation system according to claim 1, wherein the U-shaped side plate, bottom plate, and partition wall are fixed to each other by welding. (3) The upper plate is fixed with screws to a flange bent outward of the U-shaped side plate and to a flange bent toward the heat exchanger chamber side of the partition wall, respectively. An in-ceiling ventilation system according to Scope 1 or 2. (4) The above-mentioned supply air blower and exhaust air blower are
Claim 1, which is placed on the drawer slice guide provided on the inner surface of the side plate and the side surface of the partition wall on the blower side.
The in-ceiling ventilation system according to item 2 or 3.