JPH0422194Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention incorporates a hexahedral heat exchanger inside the box-shaped main casing, allowing heat exchange between the exhaust air flow and the supply air flow. It concerns ventilation equipment.

[Prior Art] In the above-mentioned type of ventilation system, in the conventional type, a heat exchanger is inserted into a box-shaped main body casing through a mounting opening and assembled, as disclosed in, for example, Japanese Utility Model Publication No. 57-53337. There is. The shape of the heat exchanger is hexahedral, and as shown in Figure 4, the filter 1
At the same time, it can be removed from the main body casing 2 by pulling it out from the attachment port 13. Mounting port 13 into which heat exchanger 14 is inserted
is closed from the outside with an asymmetrical lid 15. The lid body 15 has a flange on its edge, and is attached by a spring-like stopper 18 attached to the main body casing 2 side, and is attached to the main body by disengaging the stopper 18 from the flange. It can be removed from the casing 2.

[Problems to be solved by the invention] In the conventional ventilation system described above, in order to maintain and inspect the heat exchanger 14 and the filter 1, the cover body 15 is
requires removal from the main body casing 2. This type of ventilation system is often installed in the ceiling, etc., and the above-mentioned work requiring removal and installation of the lid 15 and the heat exchanger 14 is quite troublesome. or,
Since the heat exchanger 14 has a hexahedral shape, even if the filter 1 attached to two sides is cleaned and then attached to the other two sides where it should not be attached, the user may not notice that the filter 1 is attached incorrectly.

This idea was made in order to solve these conventional problems, and it allows for easy maintenance and inspection of heat exchangers, and eliminates the possibility of incorrect installation of filters or heat exchangers. The purpose is to obtain a device.

[Means for solving the problem] The ventilation device according to this invention can be inserted into the main casing through a mounting opening provided on the outer surface of the box-shaped main casing, and can be pulled out from the main casing through the mounting opening. The heat exchanger is equipped with a hexahedral heat exchanger capable of air-to-air heat exchange, and the heat exchanger has a mounting hole provided on the outer surface of the main body casing that can be closed when attached to the main body casing, and can be bent outward. A lid body having flanges along the four sides of the lid body is integrally formed on one side end, and the flanges of the lid body have a larger protrusion amount along one side than the other sides, and A fastener that can be hooked onto a large flange is provided on the rim of the mounting opening of the main body casing.

[Function] In this device, when the heat exchanger is inserted into the mounting port of the main body casing, the mounting port can be closed with a lid formed at one end of the heat exchanger, and heat from the mounting port can be closed. The mounting port can be opened when the exchanger is pulled out. Furthermore, since the structure allows the fasteners provided on the main body casing to be latched only to specific flanges of the lid, the fasteners may not function if the heat exchanger is installed from the wrong mounting opening. become.

[Example] Figures 1, 2, and 3 all show a ventilation system as an example of the present invention. This ventilation system is characterized by the structure of the heat exchanger 4 and the structure for fixing it, and the structure of each part other than these is the same as the conventional example described above. Therefore, the same components as in the conventional example are designated by the same reference numerals as in FIG. 4, and detailed explanation thereof will be omitted.

The ventilation system of this example can be inserted into the main casing 2 through a rectangular installation opening 3 provided at the center of the outside of the box-shaped main casing 2, and can be pulled out from the main casing 2 through the installation opening 3. Hexahedral heat exchanger 4 capable of heat exchange at
It is equipped with This heat exchanger 4 has a passage for conducting the exhaust air flow and a passage for conducting the supply air flow perpendicular to the passage, and a filter 1 is removably attached to the two sides where the openings on the introduction side of each passage are lined up. has been done.
At one end of the heat exchanger 4, a mounting port 3 of the main body casing 2 is connected to the heat exchanger 4 to the main body casing 2.
A lid body 5 that can be closed when attached is integrally constructed. The lid body 5 is larger than the mounting port 3.
It is formed into a rectangular shape corresponding to , and a handle 6 is provided at the center of the front surface to facilitate attachment and detachment. Flanges 7 that project forward are bent and formed on the four sides of the lid 5. The flanges 7 of the lid body 5 along one side are formed to have a larger protrusion amount than the flanges along the other sides (indicated by reference numeral 7A in the figure). A spring-like movable stopper 8 that can be latched onto the flange 7A having a large protrusion is provided at a corresponding opening edge of the attachment opening 3 of the main body casing 2. Lid body 5
The heat exchanger 4 including the filter 1 and the filter 1 can be installed into the main body casing 2 from the attachment port 3, or can be removed from the main body casing 2 from the attachment port 3. Even if the heat exchanger 4, which was removed during maintenance and inspection, is inserted into the main body casing 2 in the wrong orientation, the flange 7A and the stopper 8 will not correspond, and the stopper 8 will not be able to function. You will notice. Also, heat exchanger 4
Since the shape of the filter 1 is hexahedral, even if the filter 1 attached to two surfaces is attached to the other two surfaces where it should not be attached after cleaning, the installation error may not be noticed. Since this becomes a guide for the mounting position of the filter 1, mistakes are reduced.
Regarding this point, it will be more effective if the surface corresponding to the flange 7A is the mounting position of one filter 1.

[Effects of the invention] As is clear from the above explanation based on the embodiments, the ventilation attachment of the invention can be inserted into the main body casing through the installation opening provided on the outer surface of the box-shaped main body casing, and can be installed through the installation opening. A hexahedral heat exchanger capable of air-to-air heat exchange that can be drawn out of the main casing is provided, and the heat exchanger is
The mounting opening opened on the outer surface of the main body casing can be closed when attached to the main body casing, and a cover body having flanges along the four sides bent outward is integrally formed at one end thereof, The flange of the lid has a larger protrusion along one side than the other side, and a stopper that can be hung on the flange with a large protrusion is provided on the rim of the mounting opening of the main body casing. Since the heat exchanger is inserted into the mounting port of the main body casing, the mounting port can be closed with the lid formed on one end of the heat exchanger, and the heat exchanger can be inserted from the mounting port. When the heat exchanger is pulled out, the mounting port can be opened, making maintenance and inspection of the heat exchanger easy. And, since it is configured so that the stopper provided on the main body casing side can be latched only to a specific flange of the lid body,
It is less likely that the heat exchanger will be installed from the wrong mounting port.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the configuration of a ventilation system as an embodiment of the present invention, and FIG. 2 is a plan view thereof.
FIG. 3 is a front view thereof, and FIG. 4 is a partial perspective view showing a conventional example. In the figure, 1 is a filter, 2 is a main body casing, 3 is a mounting port, 4 is a heat exchanger, 5 is a lid body, 7,
7A is a flange, and 8 is a stopper. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] Equipped with a hexahedral heat exchanger capable of air-to-air heat exchange that can be inserted into the main casing through a mounting opening provided on the outside of the box-shaped main casing, and can be pulled out from the mounting opening to the outside of the main casing. , the heat exchanger is capable of closing the mounting opening opened on the outer surface of the main body casing when attached to the main body casing, and has a cover body having flanges along the four sides bent outward and integrated into one end. The flange of the lid has a larger protrusion along one side than the other side, and a fastener that can be latched to the flange with a large protrusion is attached to the main casing. A ventilation device that is installed at the rim of the mouth.