JPH0625633B2 - Indoor air blower for air conditioners - Google Patents

Description

TECHNICAL FIELD The present invention relates to an indoor blowout device for an air conditioner.

<Prior Art> Conventionally, as an indoor blowing device of an air conditioner, there is one that determines a vertical blowing direction by changing the direction of one flap. However, since the vertical airflow direction is determined by the single flap in the indoor blowing device, when the flap is set to the forward blowing position during heating, warm air does not flow downward and the feet are cold. Further, when the flap is in the downward blowing position, warm air does not flow far, and it is impossible to uniformly heat the entire room over a wide range.

Therefore, recently, the present inventors have proposed the following indoor blowout device for an air conditioner in order to heat a room over a wide range (Japanese Patent Application No. 62-86500).

As shown in FIG. 4 and FIG. 5, this indoor blowing device is supported by a main flap 1 that determines the vertical wind direction of the blown air, and on the back side of the main flap 1 coaxially with the main flap 1. It has an auxiliary flap 2. The auxiliary flap 2 is also provided with an air passage portion 2a and a wind direction changing portion 2b, which are formed of a plurality of rectangular notches, at predetermined intervals.

When heating a wide range in this indoor blowing apparatus, as shown in FIG. 5, the main flap 1 is manually set to the forward blowing position, and the auxiliary flap 2 is also manually set to the downward blowing position. Then, a part of the warm air blown forward from the cross flow fan 3 is
The arrow passes along the main flap 1 after passing through the air passage portion 2a.
It is blown forward like (a). On the other hand, the air passage portion 2a
The wind that hits the wind direction changing portion 2b provided between the two is blown downward along the auxiliary flap 2 as shown by the arrow (b).

Therefore, the air can be blown to the front and the bottom (that is, in the two directions of perspective) to heat the room over a wide range.

<Problems to be Solved by the Invention> However, in the conventional indoor blowing device that blows air in two directions, the auxiliary flap 2 is provided on the back side of the main flap 1, and the directions of the two flaps are manually set. Since it has to be changed, there is a problem that it is troublesome to manually set the two flaps of the main flap 1 and the auxiliary flap 2 to just right positions.

Therefore, an object of the present invention is to set the main flap to the front blow-out position during heating so that the auxiliary flap is automatically set to the lower blow-out position in conjunction with it, so that the interior of the room can be widened by a simple operation. An object is to provide an indoor blower for an air conditioner capable of heating over a range.

<Means for Solving the Problems> In order to achieve the above object, the air conditioner blowing device of the present invention, as illustrated in FIG. 1, extends horizontally at the blowout port of the indoor unit, A main flap 11 that determines the vertical blowing direction of the blowing air, and is rotatably attached on one surface of the main flap 11 with one long side as a fulcrum 15c, and a plurality of horizontal flaps are provided at predetermined intervals in the horizontal direction. An auxiliary flap 15 having an air passage portion 15a, a spring 20 for urging the auxiliary flap 15 so that the auxiliary flap 15 is in close contact with the main flap 11, and an auxiliary flap 15 protruding from the auxiliary flap 15 to the opposite side of the main flap 11. , When the lever 16 having a follower portion 18 at its tip and the auxiliary flap 15 biased by the spring 20 are united with the main flap 11 and rotated to a predetermined position, When the main flap 11 is set to the forward blowing position, the guide portion 17 is provided to contact the follower portion 18 to regulate the rotation of the auxiliary flap 15 and separate the auxiliary flap 15 from the main flap 11. The auxiliary flap 15 is characterized in that it is set to the downward blowing position.

<Operation> When "heating 2-way blowing" is designated during heating, the main flap 11 is rotated to set the main flap 11 to the forward blowing position. At the same time, the auxiliary flap 15, which is biased by the spring 20 so as to be in close contact with the main flap 11, is also rotated together with the main flap 11 to a predetermined position (downward blowing position). Then, the follower portion 18 provided at the tip of the lever 16 contacts the guide portion 17.

After that, when the main flap 11 is further rotated to the forward blowing position, the auxiliary flap 15 also tries to rotate further. However, the follower portion 18 is not
Since it is in contact with 7, the follower part 18 (lever 16)
Cannot rotate any further and the above-mentioned auxiliary flap 1
The rotation of 5 is restricted. Therefore, the main flap 1
The position of the auxiliary flap 15 when 1 reaches the forward blowing position remains the above downward blowing position.

Therefore, a part of the warm air sent from the fan passes through the air passage portion 15a of the auxiliary flap 15 and is blown forward along the lower surface of the main flap 11 at the forward blowing position. On the other hand, the auxiliary flap 1 between the air passage portions 15a
The warm air that hits 5 is blown downward along the inner surface of the auxiliary flap 15 at the downward blowing position.

<Example> Hereinafter, the present invention will be described in detail with reference to the illustrated implementation order.

FIG. 1 is a perspective view of a main part of an indoor blowing device according to the present invention.

The main flap 11 extends in the horizontal direction at the outlet of the indoor unit of the air conditioner (not shown).
2 (only one shown) is provided. The tip of the attachment member 12 is attached to the rotary shaft 13. That is, when the rotary shaft 13 is rotated, the main flap 11 rotates around the rotary shaft 13 and determines the vertical blowing direction of the wind. The rotary shaft 13 is rotated by a stepping motor 14 by a predetermined angle according to the air conditioning condition.

The auxiliary flap 15 has a plurality of air passage portions 15a formed of rectangular notches at predetermined intervals.
The auxiliary flap 15 between them becomes the wind direction changing portion 15b. The auxiliary flap 15 is arranged on the rotary shaft 13 side of the main flap 11 and is rotatably supported by the base of the mounting member 12 so that one long side can be used as a fulcrum 15c. Therefore, the auxiliary flap 15 can be integrated with or separated from the main flap 11 by rotating around the fulcrum 15c.

A spring 20 is provided on the support portion of the auxiliary flap 15 at the base of the mounting member 12, and one end of the spring 20 is attached to the mounting member 1.
2 and the other end is fixed to the auxiliary flap 15.
The auxiliary flap 15 is always urged by the spring 20 so that the auxiliary flap 15 is integrated with the main flap 11.

Arms 16 (only one is shown) are provided at both ends in the longitudinal direction of the auxiliary flap 15 so as to project to the side opposite to the main flap 11.
8 are provided.

When the main flap 11 rotates clockwise, the pressing spring 2
The auxiliary flap 15, which is urged to be integral with the main flap 11 by 0, also rotates together. Then, the tip end 11a of the main flap 11 faces downward (that is, as shown in FIG.
The guide portion 17 is provided at a position where the guide pin 18 abuts in the case of (d) middle stage blowing). Therefore,
When the main flap 11 further rotates from the above downward blowing position, the guide pin 18 causes the guide portion 17 to rotate the spring 20.
A force is applied in the direction opposite to the urging direction of the auxiliary flap 15
Is separated from the main flap 11 and enters a state as shown in FIG.

The indoor blowing device having the above structure operates as follows.

FIG. 2 shows the positional relationship between the main flap 11 and the auxiliary flap 15. When the "heating 2-way blow" is instructed from the outside, the stepping motor 14 causes the main flap 11 to move in the arrow direction.
Rotate in the direction of (A). Then, the auxiliary flap 1
Since 5 is biased by the spring 20 so as to be integrated with the main flap 11, the auxiliary flap 15 rotates integrally, and eventually the state of FIG. 2 (a) or FIG. 3 (d) is reached.
(Middle-stage blowing), and the guide pin 18 comes into contact with the guide portion 17.

Further, when the main flap 11 continues to rotate, the auxiliary flap 15 also tries to rotate accordingly. However, since the guide pin 18 is in contact with the guide portion 17, the auxiliary flap 15 remains in the downward blowing position where it can continue to rotate. Therefore, the auxiliary flap 15 is relatively open with respect to the main flap 11. And
The stepping motor 14 is stopped in the state shown in FIG. 2 (b).

Then, a part of the warm air blown forward from the fan (not shown) passes through the air passage portion 15a of the auxiliary flap 15 and is blown forward along the main flap 11 as shown by an arrow (B). On the other hand, the warm air that hits the wind direction changing unit 15b is
It is blown downward along the auxiliary flap 15 as shown in (C).

In this way, the warm air can be blown in two directions, the front (B) and the lower (C), so that the room can be heated over a wide range.

FIG. 3 shows the positional relationship between the main flap 11 and the auxiliary flap 15 in various blowing methods by the indoor blowing device of the present invention. The main flap 11 rotates clockwise from the state shown in FIG. 3 (a) to the state shown in FIG. 3 (e) through (b), (c) and (d).

FIG. 3 (a) shows cooling downward blowing, FIG. 3 (b) shows cooling horizontal blowing, FIG. 3 (c) shows heating downward blowing, and FIG. 3 (d) shows heating middle stage blowing. In any case, since the guide pin 18 is not in pressure contact with the guide portion 17, the auxiliary flap 15 is the main flap 1.
Together with 1, it guides the wind from the fan in only one direction.

On the other hand, FIG. 3 (e) shows the heating 2-way blowout, and since the guide pin 18 is in pressure contact with the guide portion 17 as described above, the auxiliary flap 15 is opened with respect to the main flap 11 and the fan It guides the wind in two directions.

In this way, when "heating 2-way blowing" is specified and the main flap 11 driven by the stepping motor 13 is set to the forward blowing position, the auxiliary flap having the passing portion 15a is automatically operated in conjunction with it. Since 15 is set to the downward blowing position, warm air can be blown in two directions, the front and the downward, and the room can be heated over a wide range.

In the above embodiment, the guide pin 18 is used as the follower portion, but a guide roller may be used.

<Effects of the Invention> As is clear from the above, the indoor blower for an air conditioner of the present invention includes a main flap, an auxiliary flap, a spring, a lever having a follower portion at its tip, and a guide portion, and during heating, When the main flap is rotated, the auxiliary flap rotates integrally with the main flap due to the action of the spring, and when the main flap rotates to a predetermined position (downward blowing position), the follower portion provided on the auxiliary flap causes the follower portion to move to the guide portion. Since the rotation of the auxiliary flap is restricted by contacting with the main flap 11 so that the auxiliary flap 15 is separated from the main flap 11, the position of the auxiliary flap when the main flap reaches the front blowing position is the above-mentioned downward blowing position. Be in position.

Therefore, a part of the warm air sent from the fan is blown forward along the main flap through the air passage portion of the auxiliary flap, while the warm air hitting the auxiliary flap is
It is blown down along the auxiliary flap.

As described above, according to the blowing device of the present invention, the warm air can be automatically blown in two directions to heat the room over a wide range.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of an indoor blowing device for an air conditioner of the present invention, FIG. 2 is a diagram showing a positional relationship between a main flap and an auxiliary flap, and FIG. 3 is a main flap and an auxiliary flap in various blowing methods. FIG. 4 is a cross-sectional view of an indoor unit of a conventional air conditioner, and FIG. 5 is a view showing an indoor blowing device of the indoor unit. 11 ... Main flap, 12 ... Mounting member, 14 ... Stepping motor, 15 ... Auxiliary flap, 15a ... Air passage part, 15b ... Wind direction changing part, 15c ... Support point, 16 ... Lever, 17 ... … Guide part, 18 …… Guide pin, 20… Spring.

Claims (1)

[Claims] 1. An indoor unit having a blowout port extending horizontally,
Main flap that determines the vertical blowing direction of the blowing air
(11) and the main flap (11) are rotatably mounted on one surface of the main flap (11) with one long side as a fulcrum (15c), and a plurality of air passage portions (15a) are horizontally arranged at predetermined intervals And a spring (20) for urging the auxiliary flap (15) so that the auxiliary flap (15) is in close contact with the main flap (11).
And a lever (16) protruding from the auxiliary flap (15) to the side opposite to the main flap (11) and having a follower portion (18) at its tip, and an auxiliary flap (urged by the spring (20). 15)
When it rotates together with the main flap (11) to a predetermined position, it comes into contact with the follower portion (18) and restricts the rotation of the auxiliary flap (15) to restrict the auxiliary flap (15) to the main flap (15). A guide part (17) for separating from (11) is provided so that when the main flap (11) is set to the forward blowing position, the auxiliary flap (15) is set to the downward blowing position. A blowout device for an air conditioner.