JP2000179887A - Indoor machine for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the damage of a ventilating fan due to the contact with foreign matters when the ventilating fan is rotated, since a big space is generated in the part of lower side of an up-and-down vane and both sides of a left-and- right vane while the foreign matters are readily enter into a ventilating passage under manufacturing process, for example. SOLUTION: Each one set of rectangular plate type foreign matter preventing members 1 are attached between left-and-right vanes 3. According to this method, entering of foreign matters into a ventilating passage 7 can be prevented under a manufacturing process, for example, whereby the damage of a ventilating fan 8 can be prevented. On the other hand, the foreign matter preventing member 1 is formed so as to have the shape of a triangle so that the height of the same is increased gradually toward the outlet direction of the same whereby the invasion of foreign matters into the ventilating air passage 7 can be prevented while a resistance against outlet air can be minimized even when the foreign matter preventing member 1 is installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an indoor unit of an air conditioner.

[0002]

2. Description of the Related Art Generally, as shown in a sectional view of FIG. 6, an indoor unit A of an air conditioner includes a blower fan 8 disposed inside an indoor unit body 9 and an outlet 10 from the blower fan 8.
And a pair of guide plates 9a and 9b forming an air passage 7 leading to the air passage. The configuration around the outlet 10 is shown in FIG.
As shown in FIG. 8, a plurality of left and right blades 3 are interlocked by one connecting bar 4 to swing the blowing wind to the left and right, and are arranged in front of the left and right blades 3 (blowing ports 10). And upper and lower blades 6 are provided for swinging up and down.

In the above configuration, the blown air blown from the blower fan 8 passes through the blower passage 7 and blows out through the blowout port 10.
When the air is blown out of the room, the direction of the blown air is changed left and right by the left and right blades 3, and the direction of the blown air is changed up and down by the upper and lower blades 6, so that the air is blown into the room.

[0004]

However, in the above-mentioned conventional construction, a large space is formed below the upper and lower blades 6 and on both sides of the left and right blades 3, so that, for example, the air passage 7 is formed during the manufacturing process. Foreign matter is easy to enter, this is the blower fan 8
When the blower fan 8 rotates in contact with the fan, the blower fan 8 is damaged.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide an indoor unit of an air conditioner that can prevent foreign substances and the like from entering a ventilation path and prevent damage to a ventilation fan.

[0006]

Means for Solving the Problems According to the present invention, there is provided an indoor unit of an air conditioner, wherein an air passage for guiding the air blown from a blower fan provided inside the air conditioner to an outlet is provided. A plurality of left and right blades for swinging the blown air left and right are provided in the outlet, and upper and lower blades for swinging the blown air up and down are provided at the outlet, and the indoor unit main body is provided from the outlet. A foreign matter preventing member for preventing foreign matter from entering the inside is mounted between the left and right blades of the guide plate.

[0007] A plurality of foreign matter preventing members are provided at predetermined intervals between the left and right blades. According to each of the above configurations, the foreign matter preventing member prevents foreign matter from entering the air blowing path, and prevents damage to the blower fan.

[0008] The foreign matter preventing member is formed so that its height gradually increases in the blowing direction. Further, the foreign matter preventing member is formed in a plate shape, and is formed such that the thickness in the middle gradually increases with respect to the thickness of the outlet side end and the thickness of the blower fan side end.

According to the above construction, foreign matter is prevented from entering the air blow path, thereby preventing damage to the blower fan and minimizing the resistance of the blow-out wind even if the foreign matter prevention member is provided. be able to.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1 and FIG. 2, the indoor unit A of the air conditioner according to the embodiment of the present invention includes a blower fan 8 arranged inside the indoor unit body 9 and a blowout port 10 from the blower fan 8. It has a pair of guide plates 9a and 9b that form an air passage 7 that extends. And FIG.
As shown in the figure, around the outlet 10, a plurality of left and right blades 3 interlocked by one connecting bar 4 for swinging the blown wind left and right, and the front side of the left and right blades 3 (the outlet 1
0) and upper and lower blades 6 for swinging the blowing wind up and down are provided rotatably in the left-right direction and the up-down direction, respectively.

Further, one guide plate 9 forming the air passage 7
A rectangular plate-like foreign substance preventing member 1 for preventing foreign substances from entering the indoor unit main body 9 from the outlet 10 is attached to each of the left and right blades 3. Note that these foreign matter preventing members 1 are arranged at positions where they do not hinder the rotation of the left and right blades 3 and are sized so as not to hinder the rotation of the left and right blades 3.

According to the above configuration, since the rectangular plate-like foreign matter preventing members 1 are mounted one by one between the left and right blades 3, for example, foreign matter can enter (invade) into the air passage 7 during the manufacturing process. This can prevent the blower fan 8 from being damaged.

In the above-described embodiment, the foreign matter preventing member 1 is formed in a rectangular plate shape. However, the present invention is not limited to this. The height is gradually increased in the blowing direction as shown in FIGS. It may be formed in a plate-shaped triangle so as to be higher.
According to this configuration, the foreign matter is prevented from entering the air passage 7 and even if the foreign matter preventing member 1 is provided, the height of the foreign matter preventing member 1 is formed so as to gradually increase. Can be minimized.

Further, as shown in FIG.
Alternatively, the curved surface 1a may be formed so that the thickness in the middle gradually increases with respect to the thickness of the outlet 10 side end and the blower fan 8 side end. In this configuration, similarly, foreign matter is prevented from entering the air passage 7 and
The blowing wind can be smoothly guided, and the resistance to the blowing wind can be minimized.

Further, in the above-described embodiment, an example is shown in which the foreign matter preventing members 1 are mounted one by one between the left and right blades 3 on one guide plate 9a, but the present invention is not limited to this. A plurality of foreign substance preventing members 1 may be provided between the left and right blades 3 at predetermined intervals within a range that does not hinder the rotation.

[0016]

As is apparent from the above description, according to the present invention, an air passage for guiding the air blown from a blower fan provided inside the indoor unit body to the blowout port is formed by a guide plate, and the blowout is performed. A plurality of left and right blades are provided in the mouth to swing the blowing wind to the left and right, and a foreign matter prevention member is installed between the left and right blades of the guide plate to prevent foreign matter from entering the indoor unit main body from the blowing port. Since it is a thing that has been prevented, foreign matter is prevented from entering the ventilation path,
Damage to the blower fan can be prevented.

Further, the foreign matter preventing member is formed so as to gradually increase in height in the blowing direction, and the thickness in the middle gradually increases with respect to the thickness of the outlet side end and the thickness of the blower fan side. As a result, the foreign matter can be prevented from entering the air passage, and even if a foreign matter preventing member is provided, the resistance of the blowing air can be minimized.

[Brief description of the drawings]

FIG. 1 is a front view of an indoor unit of an air conditioner according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the same.

FIG. 3 is a side view of another foreign matter prevention member.

FIG. 4 is a plan view of the same.

FIG. 5 is a plan view of still another foreign matter prevention member.

FIG. 6 is an enlarged sectional view of a main part of an indoor unit of an air conditioner showing a conventional example.

FIG. 7 is a front view showing the entire structure of the left and right blades.

FIG. 8 is a side view of the left and right blades.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foreign material prevention member 3 Left and right blades 6 Upper and lower blades 7 Ventilation path 8 Ventilation fan 9 Indoor unit main body 9a Guide plate 9b Guide plate 10 Outlet A Indoor unit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masami Hayashi 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F term (reference) 3L051 BJ10

Claims (4)

[Claims] An air passage for guiding air blown from a blower fan provided inside the indoor unit main body of the air conditioner to an outlet is formed by a guide plate,
In the outlet, a plurality of left and right blades for swaying the blowing wind are provided side by side, and upper and lower blades for swinging the blowing wind up and down are provided, and foreign matter enters the indoor unit main body from the outlet. An indoor unit for an air conditioner, wherein a foreign matter preventing member for preventing air pollution is mounted between left and right blades of a guide plate. 2. The air conditioner indoor unit according to claim 1, wherein a plurality of foreign substance preventing members are provided at predetermined intervals between the left and right blades. 3. The air conditioner indoor unit according to claim 1, wherein the foreign matter preventing member is formed so as to gradually increase in height in a blowing direction. 4. The method according to claim 1, wherein the foreign matter preventing member is formed in a plate shape, and is formed such that a thickness in the middle thereof is gradually increased with respect to a thickness of the outlet side end and a thickness of the blower fan side end. The indoor unit of the air-conditioning apparatus according to any one of claims 1 to 3, wherein: