JPS6231797Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air conditioner, and particularly to a structure for maintaining airtightness in an air passage around a fan of an air blower.

The air conditioner is equipped with a heat exchanger in the indoor installation part in the main body casing, and an air blower for exchanging heat with the heat exchanger in the outdoor installation part, and the fan of the blower is connected to the heat exchanger. BACKGROUND ART There has been conventionally known an air conditioner which is covered with a fan casing that forms an air passage that communicates with an installation space through an air flow opening and that also serves as a partition wall that separates the air passage from the outdoors.

This is shown in Figure 5. In the figure, 1 is the air conditioner main body casing, 1A is the base, and 3 is the base 1A.
A cooler as a heat exchanger installed above, 6 is a heat exchange air blower installed behind the cooler 3 and installed on the base 1A, and 7 is a fan facing the rear of the cooler 3. Installed fan, 6A is base 1A
The motor as a fan drive installed on the
Reference numeral 2 denotes a partition plate erected on the base 1A, which divides the inside of the main body casing 1 into an indoor side 20 where the cooler 3 is installed and an outdoor side 2 where the blower 6 is installed.
It is divided into 1. 2A is a suction bell mouth 11 provided in the partition plate 2 as an air circulation port;
The fan casing is composed of an upper casing 9 as an upper divided body and a lower casing 8 as a lower divided body, which are divided into upper and lower parts at the center of the fan 7. The upper and lower casings 9 and 8 are inserted and supported in U-shaped mounting portions (not shown) formed on both sides of the partition plate 2, respectively.
Further, as described above, the fan casing 11 also serves as a partition wall that partitions the air passage 10 around the fan 7 from the outside of the air passage 10, that is, the outdoor installation space for the motor 6A and the like.

In the air conditioner having the above configuration, the upper and lower casings 9 and 8 are inserted and supported in the U-shaped mounting portion of the partition plate 2, and assembled with their lower ends and upper ends butted against each other. If the dimensions and flatness of the upper and lower casings 9, 8, etc. do not match at the abutting surfaces, a gap will occur in this area, and the air blown inside the fan casing 11 will leak to the outside, reducing the cooling capacity, etc. In addition, there is a risk that rainwater may enter from the outside, which is a problem, so a sealing material 14 is interposed on the abutting surfaces.

However, in this configuration, the sealing material 1
The need for the seal member 14 increases the number of parts, and the installation of the seal member 14 is troublesome, resulting in poor workability.

Therefore, in view of the above-mentioned conventional situation, the present invention eliminates the conventional sealing material that was interposed between the abutting surfaces of the upper and lower divided bodies formed by dividing the fan casing into upper and lower parts. Instead, the fitting parts of the convex part and the recess part are molded on the abutting surfaces, and an eave-like protrusion for preventing rainwater intrusion is integrally molded along the fitting part position of the outer wall surface of the upper divided body, thereby reducing the number of parts. The purpose of the present invention is to provide an air conditioner that reduces air pressure and improves installation workability.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4.

In these figures, the same elements as those in FIG. 5 are given the same reference numerals to simplify the explanation.

That is, in FIGS. 1 to 3, numerals 1 to 7 are exactly the same as the conventional device described above. 11 is a fan casing, and the upper casing 9 is divided into upper and lower parts.
and the lower casing 8 are vertically butted against each other and mounted in both the left and right mounting portions 5A and 5B of the partition plate 2. 1
0 is an air passage formed in the upper and lower casings 9 and 8, 12A and 12B are fitting parts where the upper casing 9 and the lower casing 8 are butted against each other,
They are stepped in a concave and convex shape so that they can engage with each other. 1
Reference numeral 3 denotes an eave-like protrusion, which is formed to protrude obliquely downward from the fitting part 12A of the upper casing 9, facing the outdoor side 21 from which the attachment part 5A is removed.

According to this configuration, the stepped fitting portions 12A, 12
B In the mutually fitted state, even if there are variations in dimensions between the upper and lower casings 9 and 8, no gap will be formed, and the air blown inside the fan casing 11 will leak to the outside, reducing the cooling capacity etc. There is no such thing as deteriorating the quality.

In addition, by providing the eave-like protrusion 13, rainwater etc. sprinkled on the outer wall surface of the upper casing 9 can be drained away from the outer wall surface of the upper casing 9.
Since the water can be drained as shown in the figure, it is possible to effectively prevent rainwater from entering the air passage 10.

Therefore, the number of parts can be reduced and workability can be improved since a conventional sealing material is not required.

FIG. 4 shows another embodiment, in which the abutting surfaces are provided with uneven fitting portions 15 and 16, so that airtightness of the air passage 10 and engagement retention force of the abutting surfaces can be provided. Fig. 6 shows an example of preventing rainwater from dripping onto the motor shaft 17 in shaft penetration parts 18A and 18B cut out so that the motor shaft 17 passes through. What is necessary is to provide a groove 19 that allows the water to flow down separately.

As explained above, according to the present invention, the fan casing, which also serves as a partition wall between the air passage around the fan and the outdoors, is formed by an upper and lower halves, and a convex part and a concave part fit into the abutting surfaces of these halves. With the structure in which the joint is integrally provided and the structure in which the eave-like protrusion for preventing rainwater intrusion is integrally provided, the airtightness of the air passage is ensured and rainwater is prevented from entering the air passage, This has a great practical effect of eliminating the use of conventional sealing materials, reducing the number of parts, and improving workability.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a fan casing in an embodiment of an air conditioner according to the present invention, FIG. 2 is an assembled vertical sectional view of the same fan casing, and FIG.
The figure is an enlarged vertical cross-sectional view of the fitting part in Figure 2, and Figure 4.
The figure is an enlarged vertical cross-sectional view showing another embodiment of the fitting part same as above, FIG. 5 is a vertical cross-sectional view showing the internal structure of an example of a conventional air conditioner, and FIG. It is. 1... Main body casing, 2... Partition plate, 2A...
...Bellmouth, 3...Cooler, 6...Blower, 7
... Fan, 8 ... Lower casing, 9 ... Upper casing, 10 ... Air path, 11 ... Fan casing, 12A, 12B ... Stepped fitting part, 13
...Eave-shaped protrusion, 15...Groove, 16...Protrusion.

Claims (1)

[Scope of utility model registration request] In an air conditioner that includes a heat exchanger on the indoor side and a blower for the heat exchanger on the outdoor side of the main body casing, the fan of the blower is covered with a fan casing divided into upper and lower parts. Step-like or uneven fitting portions that engage with each other on the abutting surfaces of the upper and lower divided bodies are each integrally molded, while protruding like an eaves along the position of the fitting portion on the outer wall surface of the upper divided body. An air conditioner characterized by integrally molded protruding parts.