JPS5815787Y2 - Insulated wall structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heat insulating wall structure in which a cold air passage wall is provided with auxiliary openings for guiding cold air as necessary.

As shown in Figure 1, in a packaged air conditioner that sucks indoor air through an intake grill 1 at the center of the front and sends it out as a cool air stream into the room from an outlet grill 2 at the top of the front, windsocks and duct connections are generally required. An auxiliary opening 3 is provided in the passage wall 5, which is the side plate of the plenum room 4, to draw out cold air according to the conditions.Normally, this opening 3 is closed with a blind panel 6, and the cold air flow from the outlet grille 2 is used to blow the air into the room. is being cooled.

Therefore, a heat insulating material such as glass wool is attached to the inner surface of the passage wall 5 to prevent dew from condensing on the outer surface of the passage wall. However, since the glass wool heat insulating material is breathable, In the past, the cold air inside the blind panel 6 leaked outward from the auxiliary opening 3 through the mounting gap of the blind panel 6, and the casing could not reliably prevent dew from adhering to the outer periphery of the blind panel 6.

In view of this point, this proposal is based on Figures 2 to 4 as an example.
As shown in the figure, a non-breathable synthetic resin film 8 such as polyester or polyethylene is pasted on the adhesive side of the glass wool heat insulating sheet 7 facing the auxiliary opening 3 of the passage wall 5.
When attaching the heat insulating sheet 7 to the inner surface 9 of the passage wall 5, the auxiliary opening 3 is sealed from the inside with the membrane 8 at the same time, as shown in FIG. 3, thereby preventing cold air from entering the breathable heat insulating sheet T. Even when the blind panel 6 is removed and the duct 10 is added as shown in FIG. The heat insulating sheet 7 is cut to the same size as the auxiliary opening 3, and by pasting the membrane 8, the stiffness of the heat insulating sheet 7 at this cut point is strengthened to make it easier to cut.

In addition, as another embodiment of the present invention, a membrane 8' may be attached to the inner surface of the heat insulating sheet 7 to prevent cold air from entering, as shown in FIG. 5, or it may be divided into two parts as shown in FIG. The membrane body 8 may be sandwiched between two heat insulating sheets 7' to be used as an integrated product, and various usage forms are possible.

In addition, the same parts are marked with the same reference numerals.

In addition, as another manufacturing method in which the membrane bodies 8, 8', 8'' are attached to the heat insulating sheet 7 with adhesive, an integrated product is obtained by spraying adhesive-soaked glass wool fibers onto the membrane bodies 8, 8', 89 and compressing them. It is also possible to create it as

Furthermore, even if an electric heater is incorporated into a packaged air conditioner and used as a heater, the membrane body 8, 8″
Since it is not exposed on the inner surface of the heat insulating sheet 7.7' which is a ventilation path for high temperature airflow, a flammable synthetic resin film may be used, but as in the other embodiment shown in FIG. If it is attached to the inner surface, the membrane 8' must be made of nonflammable aluminum foil.

As described above, the present invention is based on a heat insulating wall structure in which auxiliary openings are provided in the cold air passage wall to draw out cold air as needed. It is possible to reliably prevent condensation by simply attaching a non-breathable membrane to the insulation sheet, and when using an auxiliary opening, the insulation sheet can be easily cut to communicate with this opening, making it practical. Above all, it is extremely useful.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a packaged air conditioner, Figure 2 is an exploded perspective view of a heat insulating wall showing an embodiment of the present invention, Figures 3 and 4.
The figures are also enlarged sectional views of the main parts showing different usage states of the heat insulating wall body, and FIGS. 5 and 6 are enlarged sectional views of the main parts showing other embodiments of the present invention. 3... Auxiliary opening, 5... Passage wall, 7.
...Insulation sheet, 8, 8', 8"...
...Membrane body, 9...Inner surface of passage wall.

Claims (1)

[Scope of utility model registration request] An auxiliary opening for directing cold air is provided in the cold air passage wall as necessary, a heat insulating sheet is attached to the inner surface of the passage wall including this opening, and a non-ventilated membrane is provided opposite to the auxiliary opening. An insulated wall structure characterized by: