JPH04260748A - Air direction adjustment device for air conditioner - Google Patents

Abstract

PURPOSE:To provide an air direction adjustment device for an air conditioner wherein an air direction adjustment plate and another air direction adjustment plate can be stopped at all times at aerodynamically and at an ideal position in view of the design and wherein both air direction adjustment plates can securely be held when a blow-off outlet is blocked. CONSTITUTION:An air direction adjustment plate A6 and an air direction adjustment plate B7 are interlocked by coupling of a prime mover cam 32, a coupling frame 27, and a driven crank 25. An interlocking angle of the coupling frame 27 is determined in conformity with the curved configration of a guide hole formed through the prime mover cam 32 penetrating a guide shaft 30 provided on the coupling frame 27, and when the air direction adjustment plates A, B block a flow-off outlet, a protruded piece 35 of the prime mover cam 32 makes contact with the driven shaft for holding of the same.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a wind direction adjustment device for an air conditioner that changes the vertical wind direction by interlocking two wind direction adjustment plates.

0002

[Prior art] Fig. 5 shows, for example, Utility Model Application Publication No. 63-104940.
FIG. 2 is a sectional view of a conventional air conditioner shown in the publication. In the figure, (1) is the main body of the air conditioner, which has a heat exchanger (2) and a blower (3) inside, a design panel (4) on the front, and an air outlet (5) on the bottom. A wind direction adjusting plate A (6) and a wind direction adjusting plate B (7) are provided respectively. The wind direction adjusting plates A(6) and B(7) have a support shaft A(8) and a support shaft B(9) on one side as shown in FIG. (10) is a side wall of the outlet, and has a bearing hole A (11) and a bearing hole B (12). (13) and (14) are crank A and crank B, each having a non-circular hole A (15) and a non-circular hole B (16) at one end.
, a driven shaft (17) and a driving shaft (18). (
19) is a connecting rod, which has circular holes (20) and (21) at both ends. (23) is a motor shaft protruding from the electric motor (22). Wind direction adjustment plate A (6) Wind direction adjustment plate B (7
) support shaft A (8) and support shaft B (9) are respectively bearing hole A
(11) Pass through bearing hole B (12) and crank A (13)
) Non-circular hole A of crank B (14) (15) Non-circular hole B
(16), and the motor shaft (
23) is fitted into the non-circular hole B (16) from the opposite side. Further, the circular holes (20) and (21) of the connecting rod (19) are fitted into the driven shaft (17) and the driving shaft (18), respectively.

Next, the operation will be explained. Design panel (
The air sucked in from 4) passes through the heat exchanger (2) and is blown out from the outlet (5) by the blower (3). At this time,
The electric motor (22) receives a signal from the main unit's microcomputer,
When the crank B (14) is swung, the crank A (13) is swung through the connecting rod (19), which causes the wind direction adjustment plate A (6) and the wind direction adjustment plate B (7) to move as shown in Fig. 7. The wind direction is adjusted in conjunction with the

0004

[Problem to be Solved by the Invention] Since the conventional air conditioner wind direction adjustment device is constructed as described above, the wind direction adjustment plate A (6) and the wind direction adjustment plate B (7) always have a constant ratio. The wind direction adjustment plate A (
6) and the wind direction adjustment plate B (7) cannot always be stopped at an ideal position from an aerodynamic and aesthetic point of view.

[0005] This invention was made in order to solve the above-mentioned problems, and allows the wind direction adjustment plate A (6) and the wind direction adjustment plate B (7) to always be placed in ideal positions from an aerodynamic and design perspective. The purpose of the present invention is to provide a wind direction adjustment device for an air conditioner that can be stopped.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the wind direction adjusting device for an air conditioner according to the present invention has a driving cam (32) and a connecting rod for interlocking the wind direction adjusting plate A and the wind direction adjusting plate B. (27) and a driven crank (25), and the driving cam (3) is inserted through the guide shaft (30) provided on the connecting rod.
The swing angle of the connecting rod (27) is determined by the curved shape of the guide hole (2), and when the wind direction adjusting plates A and B close the air outlet, the protrusion (35) of the driving cam (32) It is configured to abut and hold the driven shaft.

[0007]

[Operation] In the air conditioner air direction adjusting device according to the present invention, the swinging angle of the connecting rod is determined by the curved shape of the guide hole, and the swinging angle of the driving cam and the driven crank can be freely set.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of the main parts of the present invention corresponding to FIG. 6, and the same parts are denoted by the same reference numerals and the explanation thereof will be omitted. In the figure, (25) is a driven crank, with a non-circular hole (1
6), with a driven shaft (26) protruding from the other end. The support shaft B (9) of the wind direction adjusting plate B (7) is fitted into this non-circular hole (16), and thereby the support shaft B (9) of the wind direction adjustment plate B (7) is supported pivotally in the bearing hole B (12) of the side wall (10). (9) swings by rotation of the driven crank (25). (27) is a connecting rod, which has a circular hole (28) at one end, a long hole (29) at the other end, and a guide shaft (30) protruding from the center. The circular hole (28) is pivotally supported by the support boss (24) and screwed through a washer (31). A driven shaft (26) is inserted through the elongated hole (29). (32) is a driving cam, which has a non-circular hole (33) in the center, a curved guide hole (34) along the periphery, and a projecting piece (35) extending in the radial direction. The above non-circular hole (
The support shaft A (8) of the wind direction adjustment plate A (6) is fitted into the wind direction adjustment plate A (6), and the motor shaft (23) of the electric motor (22) is fitted from the opposite side.
) is fitted, and the drive cam (32) swings about the support shaft A (8) as a fulcrum. A connecting rod (27) is installed in the guide hole (34).
) is inserted through the guide shaft (30).

As shown in FIG. 4, the guide hole (34) connects points (f) and (g) that regulate the swing angle (a) of the driving cam (32), and connects the center of the driving cam (32). Curves (39) and (40) that always maintain constant dimensions centering on the curve (38) whose distance from
) (37).

Next, the operation will be explained. Figure 2 shows the stopped state, that is, the state where the air outlet (5) is closed by the wind direction adjustment plate A (6) and the wind direction adjustment plate B (7). B(7) shows the open state. FIG. 4 is an explanatory diagram showing the operation of the link mechanism. 30), and when this drive cam (32) swings at an angle (a), the guide shaft (3
0) is guided by the curves (39) and (40) of the guide hole (34), so that the connecting rod (27) swings by the angle (c). At this time, since the driven shaft (26) is inserted into the elongated hole (29), the driven crank (25) swings by the angle (b).
The wind direction adjusting plate B (7) integrated therewith also swings in the angle (b).

When the wind direction adjustment plate A (6) and the wind direction adjustment plate B (7) are closed, the semicircular portion (37) is in contact with the guide shaft (30) as shown in FIG. In the operating state, as shown in Fig. 3, the rotation of the motor shaft (23) of the electric motor (22) causes the wind direction adjusting plate A (6) and the driving cam (32) to swing, and the connecting rod (27) and the driven crank ( 25), the wind direction adjusting plate B (7) is interlocked. At this time, the wind direction adjustment plate A (6) and the wind direction adjustment plate B (7) can be stopped at any position by stopping the electric motor (22), and the most open position is half way as shown in Figure 3. The circular part (36) is the guide shaft (
30).

[0012] Wind direction adjustment plate A (6) and wind direction adjustment plate B (7
) is the relative position of the curve (39) (4) of the guide hole (34).
0), so by changing these curves (39) and (40), it is possible to set the relative position freely.

In the present invention, since the position of the wind direction adjustment plate B (7) is regulated by the engagement of the driven shaft (26) and the elongated hole (29), it tends to become unstable, but as shown in FIG. Connect the air outlet (5) to the wind direction adjustment plate A (6) and the wind direction adjustment plate B (7).
), when closed, the protruding piece (35) comes into contact with the driven shaft (26) and acts as a stripper, making the position stable.

[0014]

As described above, according to the present invention, the non-circular hole into which the support shaft A(8) of one of the wind direction adjustment plates A(6) and the electric motor shaft (23) are coaxially fitted is provided. (33), a guide hole (34) along a curve whose distance from the center of the hole gradually changes, and a projection protruding in the radial direction (35)
A drive cam (32) is provided with a drive cam (32), one end of which is rotatably supported on the side wall of the outlet, a guide shaft (30) that is movably inserted into the guide hole (34) is protrudingly provided, and the other end is provided with a guide shaft (30) that is movably inserted into the guide hole (34). Long hole (29
) with the connecting rod (27) and the other wind direction adjustment plate B (7
), one end of which is fitted onto the support shaft B (9), and a driven crank (25) having a driven shaft (26) protruding from the other end that is inserted into the elongated hole (29); When the wind direction adjusting plate A and the wind direction adjusting plate B are positioned so as to block the flow, the projecting piece (35) of the driving cam (32) comes into contact with the driven shaft (26) and holds it. By appropriately setting the guide hole of the drive cam, it is possible to prevent the amount of rotation of one wind direction adjustment plate A and the other wind direction adjustment plate B from being proportional, and to set one wind direction adjustment plate A at an appropriate position. When stopped, the other wind direction adjusting plate B can be stopped at a position where the blown airflow is optimal.

Furthermore, when both the wind direction adjustment plates A and B are positioned so as to close the air outlet, even if there is some wobbling at the connecting portion between the connecting rod (27) and the driven crank (25), the driving cam will not move. The protruding piece (35) is connected to the driven shaft of the driven crank (
26) and holds it, it is possible to ensure the closing of the other wind direction adjustment plate B, prevent rattling, and prevent the occurrence of chattering noises and the like.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a wind direction adjustment device according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view when the air outlet in FIG. 1 is closed.

FIG. 3 is an enlarged sectional view when the air outlet shown in FIG. 2 is opened.

FIG. 4 is an explanatory diagram showing the operating principle of FIG. 1.

FIG. 5 is a sectional view of a conventional wind direction adjustment device.

FIG. 6 is an exploded perspective view of essential parts of the device shown in FIG. 5;

FIG. 7 is a sectional view when the air outlet shown in FIG. 5 is opened.

[Explanation of symbols]

6 Wind direction adjustment plate A 7 Wind direction adjustment plate B 8 Support shaft A 9 Support shaft B 10　Air outlet side wall 11 Bearing hole A 12 Bearing hole B 16 Non-circular hole B 22 Electric motor 23 Motor shaft 25 Driven crank 26 Driven axis 27 Connecting rod 28 Circular hole 29 Long hole 30 Guide shaft 32 Driving cam 33 Non-circular hole 34 Guide hole 35 Projection piece

Claims (1)

[Claims] [Claim 1] A plurality of wind direction adjustment plates are rotatably supported in the same direction at an air outlet, an electric motor that drives one of the wind direction adjustment plates, one of the wind direction adjustment plates, and the other wind direction adjustment plate. In a wind direction adjustment device equipped with a link mechanism that connects the wind direction adjustment plate A, a non-circular hole in which the support shaft A of one wind direction adjustment plate A and the electric motor shaft are fitted coaxially; A driving cam is provided with a guide hole along a curve whose distance gradually changes and a protruding piece (35) projecting in the radial direction, and one end is rotatably supported on the side wall of the outlet and moves to the guide hole. A connecting rod has a protruding guide shaft that can be inserted through it, and has a long hole at the other end, and one end is fitted to the support shaft B of the other wind direction adjustment plate B, and the other end is inserted into the long hole. and a driven crank having a protruding driven shaft, and when the wind direction adjustment plate A and the wind direction adjustment plate B are rotated to a position where the air outlet is closed, the projecting piece of the driving cam comes into contact with the driven shaft. , a wind direction adjustment device for an air conditioner, characterized in that it is configured to hold the same.