JPH0519693Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention sucks outdoor air and blows it indoors through a built-in heat exchanger, sucks indoor air and exhausts it outside through the heat exchanger, and This invention relates to an air conditioning ventilation system equipped with a slidable shutter on the back that simultaneously opens and closes an exhaust passage and an exhaust passage.

[Prior Art] The core of an air conditioning ventilation system is an exhaust blower that forms an exhaust flow, a supply air blower that forms a supply air flow, and a heat exchanger that exchanges heat between the supply and exhaust air.
Some of them are equipped with a shutter that prevents outside wind from entering the room from the air supply passage or exhaust passage when not in operation. Conventionally, this type of shutter has been provided with a shutter mounting member between the mounting plate to which the main body is attached and the back of the main body, as disclosed in, for example, Japanese Utility Model Application Publication No. 170652/1983. It is slidably assembled between the back of the main body. Two ventilation ducts that are drawn out and open to the outside are attached to the mounting plate, and the main body is attached and fixed at its back portion to the mounting plate, which is fixed to the indoor wall with screws or the like. The shutter is interposed in a communicating portion between the end of the supply/exhaust passage on the main body side and the end of the supply/exhaust passage on the mounting plate side, and closes and opens the said communicating portion by sliding operation of a downwardly extending operating protrusion.

In the above air conditioning ventilation system, both the air supply passage and the exhaust passage can be closed simultaneously by sliding the shutter by operating the operating protrusion, so that outside air from the air supply passage and the exhaust passage when not in operation can be closed. Intrusion can be prevented.

[Problems to be solved by the invention] In the conventional air conditioning ventilation system described above, the shutter is assembled between the main body and the mounting plate, so in order to ensure smooth sliding of the shutter and eliminate inappropriate gaps in the relevant part. There was a problem in that a shutter mounting plate had to be interposed, which caused problems in terms of thinning and simplifying the structure. In addition, since air conditioning ventilation fans are usually located in different temperature zones between indoors and outdoors, condensation occurs inside the main unit, and in order to protect the blower etc. from this condensation, it was necessary to insulate the outer shell of the main unit. . However, it is difficult to use the best heat insulating material for the main body shell due to design and strength constraints, and the cost increases, so a separate heat insulating material from the main body shell is required. It was hot.

This idea was made to solve these conventional problems, and the shutter, which performs the opening and closing function by sliding, can be made functional with just the core structure of the air conditioning ventilation system without any special auxiliary parts, and it has excellent heat insulation properties. To provide an air-conditioning ventilation system which is excellent and easy to use, with a smooth sliding shutter.

[Means for Solving the Problems] The air conditioning ventilation system according to this invention has a main body outer shell that has an air supply port and an exhaust port on the back side, and has an air supply system that blows outdoor air taken in from the air supply port into the room. an air blower, an exhaust blower that sends indoor air to the outdoors through an exhaust port, a heat exchanger that performs heat exchange between supply and exhaust air, and at least a surface facing the back side of the main body outer shell that is made of a heat insulating material; A fan casing for a blower is provided with an air supply port and an exhaust port at a position opposite to the air supply port and exhaust port, and an outer surface of the fan casing on the back side of the main body outer shell and an indoor side surface of the main body outer shell back side. A shutter sliding portion formed therein and a shutter that slides on the shutter sliding portion to open and close the air supply port and exhaust port of the fan casing and the outer shell of the main body are provided.

[Function] In this invention, by assembling the fan casing to the outer shell of the main body, a gap for attaching the shutter is formed at the back of the outer shell of the main body, and the shutter can be installed in this space without the need for any special auxiliary members. The shutter can be put into a slidable functional state, and the insulation between the indoor side and the outdoor side can be maintained.

[Embodiment] FIG. 1, FIG. 2, and FIG. 3 all show an air conditioning ventilation system as an embodiment of the present invention. The air conditioning ventilation system shown in this example includes a main body 1 and a main body 1.
and a mounting plate 2 for holding and fixing the. The main body 1 is
A front panel 3 constituting the front outer shell, a main body outer shell 4 constituting the outer shell other than the front, a supply air blower 5 and an exhaust air blower 6 assembled in the main body outer shell 4, and a heat exchanger 7. , a shutter 8, and a drawstring device for opening and closing the shutter 8. The mounting plate 2 is a plate-like member having two ventilation ducts 9 that pass through a wall or the like and are drawn out to the outside.The mounting plate 2 is fixed to the indoor wall with screws or the like, and is attached to the main body 1 by a hook formed on its upper edge. Hold it at your back. The back surface of the main body shell 4 is set back inward from the circumferential edge, and the back surface has a ventilation hole 10 that forms part of the air supply passage and a ventilation hole 11 that forms part of the exhaust passage side by side. has been done. Further, on the inside of the back surface, ribs 12 are formed which are parallel to each other on the upper and lower sides and project inward. The distance between the upper and lower ribs 12 in the vertical direction approximately corresponds to the vertical dimension of the shutter 8, and the amount of protrusion approximately corresponds to the wall thickness of the shutter 8, respectively. However, the upper rib 12
In this case, there are discontinuous lines that are partially interrupted by the stroke of the shutter 8, and are partially provided in two upper and lower rows with a channel 13 formed therebetween. A supply air blower 5, a motor mounting plate 14, and an exhaust blower 6 are assembled into the main body outer shell 4 from the rear side, and a cross-flow type heat exchanger 7 is assembled into the main body outer shell 4 on these sides. . A fan casing 15 of the air supply blower 5, which is incorporated into the innermost part of the main body outer shell 4, is integrally molded with resin or the like, and is provided with heat insulation properties. On the upper and lower sides of the back surface of the fan casing 15, ribs 16 of protruding amounts corresponding to the respective ribs 12 protrude rearward at intervals that extend outside the ribs 12. A suction port 17 corresponding to the ventilation hole 10 of the main body outer shell 4 is opened on the back side of the fan casing 15 . When the fan casing 15 is assembled into the main body outer shell 4, the shutter sliding portion 1 is surrounded by each rib 12, 16, the main body outer shell 4, and each back surface of the fan casing 15.
8 is formed within the body 1. Shutter sliding part 18
is sufficient to slide the shutter 8, and the shutter 8 has two communication holes 19 arranged side by side.
is interposed. The lower edge of the shutter 8 is received by the lower rib 12 on the outer shell 4 side, and the upper edge is supported by the upper rib 12 on the outer shell 4 side, so that the shutter 8 can smoothly slide laterally. The drawstring device for sliding the shutter 8 to open and close includes an elastic member 20 on the side that engages with the outer shell 4 of the main body, and a drawstring 22 that includes an interlock mechanism 21 on the other end that pulls out of the main body 1. This is a series of serial cord systems. The elastic member 20 is housed in the channel 13 formed by the ribs 12 with one end being locked to the main body outer shell 4, and a locking member provided at the upper part of the shutter 8 at the middle part near the connecting part with the drawstring 22. It is connected to the portion 23 and has an elastic force that draws the shutter 8 toward the closing stroke end. The free end of the drawstring 22 is suspended from the bottom of one side of the main body 1 to the outside through an interlock mechanism 21. The interlock mechanism 21 has a similar structure to the mechanism built into a pull cord switch, which locks the pull cord 22 once when the shutter 8 is open and releases the lock by pulling it again. can be used as is. At this time, in the case of the notch switching type, by connecting the notch switching switches in series, the shutter can be turned off regardless of the notch switching when the shutter is closed.

The sliding stroke of the shutter 8 is regulated by the side surface of the shutter 8 coming into contact with the rib 12 on the side of the main body outer shell 4 in the vertical direction.

The main body 1 obtained by assembling the respective constituent members in this manner is mounted in a usable state by being mounted on a mounting plate 2 fixed to a wall surface or the like using the recessed portion of the back.

Therefore, the air conditioning ventilation system of this example also performs the same shutter function as the conventional example, and the intrusion of outside wind during non-operation is easily prevented by sliding the shutter 8 by pulling the drawstring 22. However, in the air-conditioning ventilation system of this example, since the shutter 8 and the drawstring device are constructed as a complete unit in the main body 1, handling at the time of installation is easy, and the fan casing to the main body outer shell 4 is easy to handle. By assembling 15, a shutter sliding part 18 for mounting the shutter 8 is formed on the inner back of the main body outer shell 4, and by simply assembling the shutter 8 here, the shutter 8 can be slid without the intervention of any special auxiliary member. possible functional state. Therefore, not only is the air conditioning/ventilation system simple in structure and can be made thinner, but the shutter can be easily opened and closed even when installed at a high place, and it is user-friendly. In particular, the drawstring device includes the elastic member 20 and the drawstring 2.
2 is a series cable system, and the shutter 8 is connected to a part of this and moves following it, so the shutter 8
The pullback force of the elastic member 20 is not applied to the member 20, and only the frictional force during sliding is applied. Therefore,
It is easy to assemble, and troubles such as friction and damage to various parts due to opening and closing of the shutter 8 are reduced.

[Effects of the invention] As is clear from the explanations based on the embodiments, the air conditioning ventilation system of the present invention has an air-conditioning ventilator that allows outdoor air taken in from the air intake into the outer shell of the main body, which has an air intake and an exhaust port on the back side. an air supply blower that blows indoor air into the room, an exhaust blower that sends indoor air outside through an exhaust port, a heat exchanger that exchanges heat between supply and exhaust air, and at least the surface facing the back side of the outer shell of the main body that is made of heat insulating material. a fan casing for a blower, which is equipped with an air supply port and an exhaust port at a position opposite to the air supply port and exhaust port on the main body outer shell; This is because it is provided with a shutter sliding part formed by the indoor side surface, and a shutter that slides on this shutter sliding part to open and close the air supply and exhaust ports of the fan casing and the main body outer shell. By assembling the fan casing to the main body shell, a gap is formed at the back of the main body shell for installing the shutter, and by simply installing the shutter in this space, the shutter can be slid without the intervention of special auxiliary members. Since it can be in a functional state and insulated between the indoor side and the outdoor side, there is no condensation on parts inside the main body such as the blower, there is no condensation on the sliding parts of the shutter, and it has excellent insulation properties. It is possible to obtain an air-conditioning and ventilation system with stable opening and closing of the shutter, low cost, and easy assembly.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the configuration of an air conditioning ventilation system as an embodiment of the present invention, Fig. 2 is a longitudinal sectional view thereof, and Fig. 3 is an explanatory view showing the back side of the main body outer shell together with the shutter. FIG. 4 is an enlarged explanatory view of the portion indicated by arrow A in FIG. 3. In the figure, 1 is the main body, 2 is the mounting plate, 4 is the main body shell, 5 is the supply air blower, 6 is the exhaust blower, 7 is the heat exchanger, 8 is the shutter, 12 and 16 are the ribs, 15
is the fan casing, 18 is the shutter sliding part, 2
0 is an elastic member, 21 is an interlock mechanism, 22
is a drawstring. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Inside the outer shell of the main body, which has an air supply port and an exhaust port on the back side, there is provided an air supply blower that blows outdoor air taken in from the air supply port into the room, and an air supply blower that blows the indoor air into the room. An exhaust blower that sends out the air through the exhaust port, and a supply and
a heat exchanger for exchanging heat of exhaust gas; at least a surface facing the back side of the main body outer shell is made of a heat insulating material; and an air supply port and an air exhaust port are provided at positions facing the air supply port and exhaust port of the main body outer shell. a shutter sliding portion formed by an outer surface of the fan casing on the rear side of the outer shell of the main body and an indoor side surface of the rear surface of the outer shell of the main body; 1. An air conditioning ventilation system comprising: a shutter that moves to open and close the air supply and exhaust ports of the fan casing and the outer shell of the main body. (2) The outer shell of the main body is provided with a series of pull string devices, the side of which is locked to the outer shell of the main body is made of an elastic member, and the other end of which is pulled out of the main body is made of a draw string that includes an interlock mechanism. 2. The air conditioning ventilation system according to claim 1, wherein the shutter is connected to an intermediate portion of the drawstring device, and the shutter is slid open and closed by pulling the drawstring. (3) The air conditioning ventilation system according to claim 1, wherein the shutter sliding portion is held and formed by a rib formed on the outer shell of the main body or the fan casing.