JPH0112121Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a wind direction adjustment device that can selectively change the air blowing direction in an indoor unit of an air conditioner between a horizontal direction and a vertically downward direction.

In particular, in the indoor unit of a heat pump type air conditioner, for example, in order to quickly cool only the necessary area during rapid cooling, it is also necessary to effectively circulate warm air from above to below during heating. Therefore, there are some devices that allow the air blowing direction to be changed from the normal horizontal direction to a vertically downward direction 90 degrees downward. That is, as shown in FIG. 1, the housing 1 of the indoor unit includes an indoor heat exchanger 2 and a fan 3 disposed below it, and the fan 3 sends air downward. An air flow path is formed, and in this case, an opening 6 that extends from the front surface to the bottom surface is formed in the lower part of the housing 1, which is the outlet of the air flow path. Inside this opening 6, in addition to a wind direction adjustment member 4 called a deflection grill for finely adjusting the air blowing direction within a limited range of the horizontal and vertical directions, A wind direction switching plate 5 is provided that can change the direction significantly. This wind direction switching plate 5 is designed to be selectively rotated between the bottom surface of the opening and the front surface of the opening, and is set on the front side of the opening in FIG. The situation is illustrated. In this way, by operating the wind direction switching plate 5, the air blowing direction can be switched from the horizontal direction to the vertically downward direction, but if furniture etc. are placed directly below this indoor unit, This becomes an obstacle and the effect of vertical downward blowing is halved. On the other hand, place the wind direction switching plate at a predetermined angular position (for example, 20°) between the horizontal direction and the vertically downward direction.
There is a known device that can be set at 45 degrees, but with this, the fulcrum position moves each time the angle of the wind direction switching plate is changed, resulting in very awkward movement. There is a drawback that the switching plate 5 cannot be returned from the front side of the opening to its original position, that is, to the bottom side of the opening, by a series of smooth operations.

This idea was devised in view of the above-mentioned drawbacks of the conventional device, and its purpose was to make it possible to freely adjust the air blowing direction from vertically downward to an angle of 45 degrees in front of it, and especially to An object of the present invention is to provide a wind direction adjusting device that can return the air flow from the front side of the opening of the housing to the bottom side of the opening in a series of extremely smooth operations.

Hereinafter, embodiments of this invention will be described in detail with reference to the accompanying drawings.

Referring to FIGS. 3 and 4, this wind direction adjustment device is installed in the opening 6 provided in the lower part of the housing 1 of the air conditioner, as described in the description related to FIG. It includes a wind direction adjustment member 4 called a deflection grill that selectively rotates between the front face of the opening and the bottom face of the opening, and a wind direction switching plate 5. In this case, the wind direction switching plate 5 An arm 13 that rotates around a fixed shaft 12 provided on the side plate 11 of the defining housing 1.
and a substantially S-shaped link lever 14 that operates in conjunction with this arm 13.
For example, 45 points further forward from the state shown in the figure.
It is becoming more and more open to the public. That is, the wind direction switching plate 5 is a horizontally long band-shaped plate formed to cover the horizontal half of the opening 6, and has a front panel 15 whose one end and the other end in the width direction are bent as shown in FIG. and a back cover 17 fixed with screws 16 on the back side thereof, and on both left and right sides thereof, although only one is shown in FIG. A bearing member 18 is provided. In this specification, one end of the wind direction switching plate 5 refers to the one end located above when the wind direction switching board 5 is rotated toward the front side of the opening, and the one end located at the front (for example, the first end) when the wind direction switching plate 5 is rotated toward the bottom of the opening. When the wind direction switching plate 5 is on the front side of the opening, the other end is located on the lower side, and when it is on the bottom side of the opening, it is on the rear side (seeing from the one end side). For example, it refers to the end located on the right side of Figure 3). Moreover, the front-rear direction is the depth direction of the housing 1, and the front side is defined as the front side, and the back side is defined as the rear side.

The bearing member 18 has a pair of bearing holes 19 and 20 arranged in the front-rear direction. A male shaft 21 formed at one end of the link lever 14 is engaged, and a male shaft formed at one end of the link lever 14 is engaged with the second bearing hole 20 located at the rear of the other end of the wind direction switching plate 5. 22 is fitted. As shown in FIG. 5, a pair of bearing holes 24 corresponding to the first and second bearing holes 19 and 20 are bored in the front panel 15 of the wind direction switching plate 5 or the side surface 23 of the back cover 17. Then, the male shafts 21 and 22 of the arm 13 and the link lever 14 may be inserted into these bearing holes 24 and 24,
According to this, the bearing structure of the wind direction switching plate 5 can be further simplified.

Referring to FIG. 6, the arm 13 includes a cam portion 26 made of a square surface for self-maintaining its rotational position in cooperation with a leaf spring 25 provided on the housing 1 side, It includes a hollow shaft 27 bored in the center thereof, and is attached to the fixed shaft 12 via this hollow shaft 27. Further, a bearing member 1 is provided on the rotating end side of the arm 13.
In addition to the male shaft 21 that is engaged in the first bearing hole 19 of 8, a stopper portion 28 is provided which is formed so as to penetrate through the back cover 17 of the wind direction switching plate 5 and come into contact with the back surface of the front panel 15. The stopper portion 28 allows the wind direction switching plate 5 in the bottom surface of the opening 6 to be
The posture of the robot is maintained almost horizontally.

On the other hand, the side plate 11 of the housing 1 has an inner wall 2
9 has a vertically elongated guide hole 30, into which a guide pin 31 provided at the other end of the link lever 14 described above is engaged. In this case, the guide hole 30 is arranged at a position forward of the rotation shaft portion of the arm 13, that is, at a position closer to the front side of the opening. In addition, arm 13 is shown in FIG.
Guide hole 30 in link lever 14 and side plate 11
It shows the relative combinatorial relationship of. The wind direction adjusting member 4 may be of a known type, and has a frame body 32 formed to be fitted into the opening 6, and a plurality of wind direction deflecting plates 33 inside the frame body 32. It is provided. A bearing boss 3 that is fitted into the hollow shaft 27 of the arm 13 is provided on the side wall of the frame 32.
4 and a protrusion 36 that is engaged in a long hole 35 formed in the arm 13 (see FIG. 4), so that the wind direction adjustment member 4 can be moved into the opening 6 together with the wind direction switching plate 5. It is adapted to be selectively rotated toward the front and bottom surfaces of.

Next, the operation of the wind direction adjustment device will be explained. When blowing out the air from the air flow path in the housing 1 horizontally from the front side of the opening 6, the air direction switching plate 5 is moved through the arm 13 as shown by the solid line in FIG. Position A where the bottom surface of the opening 6 is covered by the pressing action of the leaf spring 25 against the cam portion 26 of the lever.
is maintained. On the other hand, when blowing air out vertically downward from the bottom side of the opening 6, the wind direction switching plate 5 is rotated via the arm 13 to the position B where it covers the front side of the opening 6, and the cam It is held in that state by the plate spring 25 via the portion 26. In relation to this movement, the male shaft 22 provided at one end of the link lever 14 moves in an arc centered on the fixed shaft 12, while the guide pin 31 provided at the other end moves through the guide hole. 30 in a straight line upwards. In this way, when the wind direction switching plate 5 is set at position B, when a clockwise rotational force is applied to the lower end, that is, the other end, the guide pin 31 of the link lever 14 moves along the guide hole 30. In order to move downward, the wind direction switching plate 5 rotates around the male shaft 21 of the arm 13, and when the guide pin 31 reaches the lower end of the guide hole 30, it is set at the fully open position C. Therefore, in this invention, the wind direction switching plate 5 can be opened steplessly within the range of the movement stroke of the guide pin 31. Next, when returning the wind direction switching plate 5 from the opened state as described above to the original position A on the bottom side of the opening 6, first close the wind direction switching plate 5 to position B, and then move the arm 13 It is also possible to rotate the holder counterclockwise, but it can be moved directly from position C to position A by a series of operations while it is still open.
It is also possible to return it to . That is, fully open position C
When a counterclockwise downward force is applied from above to the wind direction switching plate 5 placed in the
As the guide pin 31 rotates, the guide hole 30
After rising once, as the wind direction switching plate 5 approaches the horizontal state, it descends again and comes into contact with the lower end of the guide hole 30. Therefore, when the wind direction switching plate 5 is finally returned to the position A, the other end thereof is housed in the bottom surface of the opening 6 so that it is pulled by the link lever 14. In this case, since the stopper portion 28 of the arm 13 is brought into contact with the back surface of the front panel 15, the other end of the wind direction switching plate 5 will not be pulled up to the inside of the bottom surface of the opening 6 more than necessary. . In this way, the wind direction switching plate 5 is returned from its open state to the bottom side of the opening 6 through a series of smooth operations.

As is clear from the description of the above embodiments, according to this invention, in the device in which the wind direction switching plate can be selectively rotated between the front side and the bottom side of the lower opening of the housing, By making it possible to steplessly open the wind direction switching plate further forward from the position set on the front side of the opening, it is possible to improve the circulation of warm air when performing rapid local cooling or when heating this indoor unit, for example. When used as a circulator, the blowing direction of the blowing air can be freely adjusted within a wider range. Particularly in this case, since the wind direction switching plate uses an opening/closing mechanism consisting of a combination of a rotating arm and a link lever, the opening/closing operation and the returning operation from the front side of the opening to the bottom side of the opening are performed in a series of operations. It's easy to do.

[Brief explanation of drawings]

Figures 1 and 2 are side views schematically showing the internal structure of a conventional air conditioner, Figure 3 is a front sectional view showing the main parts of the air conditioner according to this invention, and Figure 4 is a side view schematically showing the internal structure of a conventional air conditioner. 3 is a sectional view taken along the - line in Figure 3, Figure 5 is a perspective view showing the deformation of the bearing part of the wind direction switching plate, Figure 6 is a side view of the arm shown in Figure 3, and Figure 7 is the arm. , is an exploded perspective view of an opening/closing mechanism including a guide hole and a link lever. In the figure, 1 is a housing, 4 is a wind direction adjustment member, and 5
1 is a wind direction switching plate, 6 is an opening, 11 is a side plate, 13 is an arm, 14 is a link lever, 18 is a bearing member, 28 is a stopper portion, 29 is an inner wall, 30 is a guide hole, and 31 is a guide pin.

Claims (1)

[Claims for Utility Model Registration] A housing having an air flow path passing through a heat exchange unit and a blower, and a horizontally elongated air blow-off opening formed across the front and bottom surfaces of the housing corresponding to the outlet of the air flow path. is located in the opening and is selectively rotated between the front side and the bottom side thereof, and in the front side position, one end is located above and the other end is located below; An air conditioner comprising: a wind direction switching plate having one end located at the front and the other end located at the rear in a bottom position so as to close either the front side of the opening or the bottom side of the opening. a pair of arms having one end pivotally supported on a side wall of the opening and the other end pivotally supporting one end of the wind direction switching plate; and one end pivotally attached to the other end of the wind direction switching plate. the other end of the link lever at a position closer to the front side of the opening than the rotating shaft portion of the arm; and the other end of the link lever is moved vertically linearly along the side plate of the housing in relation to the rotational movement of the wind direction switching plate. 1. A wind direction adjustment device for an air conditioner, comprising: a guide means for guiding the air.