JPH06201146A - Indoor air conditioner - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an indoor air conditioner capable of improving the ventilation performance and reducing noise. [Structure] A casing having a suction port and a blowout port accommodates multiple cross flow fans 16 and heat exchangers that are axially separated by a plurality of end plates 23, and adjusts the direction of blown air in a blowout passage. The vertical blade 1 is attached via a support shaft 2 so as to be swingable. Support shaft 2 and cross flow fan 1
6 are arranged at the intersections of the straight line 3 on the lower edge 17a of the blowing passage extending parallel to the rotating shaft 16a and the plane including the end plates 23, 23 ... The front end 1a of the vertical blade 1 is pivotally supported by the support shaft 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor air conditioner in which a multiple fan and a heat exchanger are housed in a casing, and more particularly to improvement of vertical blades for adjusting the direction of blown air of the indoor air conditioner.

[0002]

2. Description of the Related Art Conventionally, as this type of indoor air conditioner,
For example, the one shown in FIG. 2 is known (Shokaisho 6
1-116918). This indoor air conditioner accommodates a heat exchanger 14 having a drain pan 15 at the lower end and multiple cross flow fans 16 in a casing 11 having a suction port 12 and a blow port 13, and connects the fan 16 and the blow port 13 to each other. A vertical blade 18 that adjusts the direction of the blown air to the left and right and a horizontal blade 19 that vertically adjusts the direction of the blown air are provided in the blowout passage 17 that operates from the fan side. The air sucked from the suction port 12 through the filter 20 as shown by the arrow is heated or cooled by the heat exchanger 14, and then the fan 1
It blows out from the blower outlet 13 by 6. The vertical blade 18
Is pivotably attached to the lower edge 17a of the outlet passage 17 via a support shaft 21 at the lower rear end near the outlet 13.

On the other hand, as shown in FIG. 3, the cross flow fan 16 has a large number of blades 24, 24 ... Seven fan blocks 22 made of synthetic resin, each of which is provided with a groove into which the tip of each blade of another block fits on the other side, are connected in series in the direction of the central axis of the block to form a series, and the centers of both ends are formed. A rotary shaft 16a supported by the casing 11 is provided in a protruding manner. The vertical blades 18, 18 ... Fit the rear end support shafts 21 in holes formed in the lower edge 17a of the outlet passage on the downstream side of the crossflow fan 16 at a constant pitch in parallel with the rotary shaft 16a. In addition, as shown by the broken line in the figure, it can swing right and left.

[0004]

However, the above-mentioned conventional vertical blades 18, 18 ... Are arranged in consideration of only the design point of view that the appearance as seen from the interior side through the outlet 13 is good. , The pitch of the vertical blades 18 is shorter than the pitch of the fan block 22, and as can be seen from FIG. 3, the pivotal position of the support shaft 21 of the vertical blades 18 is the intermediate position of the fan block 22 or the end plate 2.
It becomes uneven such as the position of 3. Therefore, when the vertical blades 18 are pivotally attached to the above-mentioned intermediate position where the speed of the blowing air indicated by the arrow in the figure is high, even when the vertical blades do not swing to the left and right, the resistance to the blowing air becomes large.
There is a drawback in that the blowing performance (the amount of air that the fan can blow in a unit time at a constant rotation speed) is reduced. Further, since the rear ends of the vertical blades 18 are pivotally supported and the front end of the thick wall is swung to the left and right, which is close to the fan, there is a drawback that strong wind blows on the front end to generate noise.

Therefore, an object of the present invention is to improve ventilation performance and reduce noise by devising the arrangement of vertical blades and the pivoting method in relation to a multiple fan. To provide.

[0006]

In order to achieve the above object, the indoor air conditioner of the present invention has a plurality of end portions whose rotation axis direction is orthogonal to the rotation axis 16a, as illustrated in FIGS. Multiple fans 16 separated by plate 23
A casing 11 accommodating a heat exchanger 14 and a heat exchanger 14 is provided with a suction port 12 and a blowout port 13, and a blowout passage 17 connecting the blowout port 13 and the fan 16 is provided with a vertical blade for adjusting the direction of the blown air to the left and right. 1 in which the support shaft 2 is swingably mounted via a support shaft 2,
7, a cross section parallel to the rotation axis 16a of the fan 16;
The end plates 23 are arranged at intersections with a plane including the end plate 23, and the end portions 1a of the vertical blades 1 on the fan 16 side are pivotally supported by the respective support shafts 2.

[0007]

The vertical blades 1, 1, ... Of the indoor air conditioner are arranged in each plane including a plurality of end plates 23 that partition the multiple fans 16 in the rotation axis direction orthogonal to the axis, and For example, the front end portion, that is, the fan-side end portion 1a is pivotally supported by the support shafts 2 provided on the lower edge 17a at the intersections of the straight line extending parallel to the rotary shaft 16a and the above-mentioned plane, and the rear end portion is It is attached so that it can swing to the left and right. In the plane including the end plate 23, the velocity of the air blown by the fan 16 is the smallest, so that the vertical blades 1 are not swung to the left and right, but also when the front blade is swung to the left and right, the vertical blades 1 are swung diagonally. The blades have almost no resistance to the blown air, and the amount of air blown at the same fan speed increases and the air blowing performance improves as compared with the case where vertical blades are arranged at other locations. In addition, since the normally thick front end of the vertical blade 1 is pivotally supported and the rear end that is thin and distant from the fan swings to the left and right, a strong blowing air does not hit the rear end and the wind pressure received is small, Almost no noise is generated due to this.

[0008]

The present invention will be described in detail below with reference to the embodiments shown in the drawings. The indoor air conditioner of the present invention is the same as the conventional one described in FIGS. 2 and 3 except that the arrangement of the vertical blades in the blowout passage near the blowout port is different, and the same members are designated by the same reference numerals. And the description is omitted. FIG. 1 is a plan view showing an example of the arrangement of the vertical blades. A straight line 3 drawn parallel to the rotary shaft 16a of the cross flow fan 16 on the lower edge 17a of the outlet passage 17 (see FIG. 2) and a cross Fitting holes are provided at intersections with the plane including the end plates 23 of the flow fan 16, and the support shafts projecting from the lower ends of the front ends (fan-side ends) 1a of the vertical blades 1 are provided in the fitting holes. 2 is inserted and the vertical blade 1 is attached so that the rear end portion thereof can swing right and left as indicated by the broken line in the figure. In addition, these vertical blades 1,1
Are oscillated manually in synchronization with a link mechanism (not shown) or automatically by a motor.

The vertical blades of the indoor air conditioner having the above structure are
It works as follows. Outlet passage 17 near the outlet 13
(See FIG. 2), the vertical blades 1, 1, ...
On the lower edge 17a of the outlet passage, along a straight line 3 drawn in parallel with the rotating shaft 16a of the cross flow fan 16, align with the position of the end plate 23, and make holes at the same pitch. The support shaft 2 provided is fitted and pivotally attached,
The rear edge can swing right and left. The front position of the end plate 23 to which each vertical blade 1 is attached is a place where the speed of the blowing air is the lowest as shown by the arrow in the figure, so of course when the vertical blade 1 is not swung left and right, front blowing Even when the vertical blades are swung diagonally to the left and right, the vertical blades have almost no resistance to the blowing air. Therefore, compared with the case where the vertical blades are arranged in other places such as the middle of the fan block 22 described in the conventional example of FIG. As a result, even if the fan speed is the same, the amount of air blown increases and the air blow performance improves. In addition, since the thick front end 1a of the vertical blade 1 is pivotally supported and the rear end that is thin and distant from the fan swings to the left and right, a strong blowing wind does not hit the rear end and the wind pressure received is small. However, the noise due to this is hardly generated.

In the above-described embodiment, the vertical blade 1 is pivotally attached to the lower edge 17a of the blowout passage 17 with a space in the lateral direction, but the support shaft 2 is provided so as to project from the upper end of the front edge of the vertical blade. The upper edge 17b (see FIG. 2) of the outlet passage is pivotally attached, and the support shaft is provided at the upper and lower ends of the front edge of the vertical blade so as to project from the upper and lower edges 17a of the outlet passage.
It can also be pivotally attached to 17b.

[0011]

As is apparent from the above description, the indoor air conditioner of the present invention has a casing having a suction port and a blow port, and a plurality of fans and heat generators axially separated by a plurality of end plates. In a case that accommodates an exchanger and has vertical blades that adjust the direction of the blown air in the blowout passage so as to be swingable through a support shaft, the support shaft is parallel to the rotation axis of the fan in the blowout passage. The support shafts are respectively arranged at the intersections of the cross section and the plane including the end plate, and the fan-side ends of the vertical blades are pivotally supported by the support shafts. The blades have almost no resistance to the blown air, the air blowing performance is improved, and the wind pressure received by the vertical blades is small, so that noise is hardly generated.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of an arrangement of vertical blades of an indoor air conditioner of the present invention.

FIG. 2 is a cross-sectional view showing a conventional indoor air conditioner.

FIG. 3 is a view taken along the line III-III of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vertical blade, 1a ... Front edge, 2 ... Support axis, 3 ... Straight line parallel to a fan rotation axis, 11 ... Casing, 12 ... Suction port, 13 ... Outlet port, 14 ... Heat exchanger, 16 ... Cross flow fan , 16a ... Rotating shaft, 17 ... Blowing passage, 17a ... Lower edge, 17b ... Upper edge, 22 ... Fan block, 23 ... End plate, 24 ... Blade.

Claims (1)

[Claims] 1. A casing containing a plurality of fans (16) and a heat exchanger (14) which are divided by a plurality of end plates (23) whose rotation axis direction is orthogonal to the rotation axis (16a).
An inlet (12) and an outlet (13) are provided in (11), and an outlet passage (1) that connects the outlet (13) with the fan (16) is provided.
In the indoor air conditioner in which the vertical blades (1) for adjusting the direction of the blown air to the left and right are swingably attached to the (7) via the support shaft (2), the support shaft (2) is connected to the blowout passage. (17) above fan
The support shafts (2) are arranged at the intersections of the cross section parallel to the rotation axis (16a) of (16) and the plane including the end plate (23). An indoor air conditioner characterized in that the end (1a) on the fan (16) side is pivotally supported.