JPH0792271B2 - Air diverting device for air conditioner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an air conditioner, and more particularly to an air conditioner diverting device for an air conditioner that is suitable for diverting the air blowing direction to the left and right with a constant cycle. Regarding

[Conventional technology]

As a conventional device, by combining a shape memory alloy spring and a bias spring as described in Japanese Utility Model Publication No. 60-148544, and by connecting this to a tilting mechanism of the wind guide vertical vanes,
An example is one in which the blowing direction is switched upward or downward depending on the blowing temperature.

[Problems to be solved by the invention]

According to the above-mentioned conventional technology, the wind direction can be automatically changed in the vertical direction depending on the season of the air conditioner installed at a high place which is difficult to reach, but it is common to manually change the horizontal direction,
To change the wind direction, it was necessary to manually adjust the angle of the left and right blades each time.

It is an object of the present invention to provide a blast air deflecting device for an air conditioner that automatically changes the angles of the left and right blades at regular intervals.

[Means for solving problems]

The purpose is to connect a connecting rod for changing the air guide angle of the left and right blades, a shape memory alloy spring that drives the connecting rod when a constant temperature is reached by constantly energizing, and one end rotatably. A bias spring that applies a restoring plastic deformation to the shape memory alloy spring via a lever supported by a shaft, a pilot air passage separating the shape memory alloy spring from the main air passage, and the other end of the lever. This is achieved by providing a lever for opening and closing the pilot air passage.

[Action]

As shown in FIG. 1, the shape memory alloy spring 5 is plastically deformed by the bias spring 4 so that the damper 6 is rotated by the pilot air passage 28.
When is closed, the shape memory alloy spring, which is always energized, gradually rises in temperature, and when it reaches a certain temperature, it overcomes the bias spring 4 and opens the damper 6, as shown in FIG. Thereupon, the shape memory alloy spring 5 receives wind to radiate heat, gradually lowers the temperature, and again loses to the bias spring, the damper 6 shields the pilot air passage 28 from the air passage, and the above-described operation is automatically repeated.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. FIG. 3 is an overall side sectional view of the air conditioner, FIG. 4 is a plane sectional view of a main part of FIG. 3, and FIGS. 1 and 2 show an embodiment of the present invention. FIG.
Reference numeral 1 has a main wind passage 29, a pilot wind passage 28, bearings 2a, 2b, 2c, and an engagement portion 3 in a casing 2, and also a heat exchanger 24, a drain receiver 25, a blower 26, vertical vanes 27, left and right directions. The air conditioner 7 including the blades 14 is supported by bearings 2b and 2c so as to be slidable back and forth, and the left and right blades 14 are provided around the fulcrum pin 15 through the connecting pins 16, 18 and 19 and the connecting rod 17. The guide bar, 13 connected to the connecting rod 20 to be rotated is rotatably supported by the fulcrum pin 23, and is connected to the guide bar 7 via the connecting pin 10 and the elongated hole 12, and near the outer end of the damper 6. A lever 5 connected to the connecting pin 9 through the long hole 11 is a shape memory alloy spring for driving the guide bar 7 by a spring seat 8 fixed to the guide bar 7, and 4 is one end of which is engaged with the locking portion 21. The bias spring is stopped and the other end is engaged with a locking hole 22 provided in the lever 13.

FIG. 1 shows that the bias spring 4 overcomes the shape memory alloy spring 5 to rotate the lever 13 around the fulcrum pin 23, thereby causing the damper 6 to engage with the engaging portion 3 of the casing 2, and to prevent the pilot wind. A state in which the passage 28 is blocked is shown, and the wind is directed by the left and right blades 14 in the direction of the arrow passing through the main wind passage 29.

By the way, since the shape memory alloy spring 5 is constantly energized while the air conditioner 1 is in operation, the temperature gradually rises due to resistance heat. When the spring 5 reaches the set transformation temperature, it tries to embody a memory shape. Therefore, the spring 5 overcomes the bias spring 4, and the guide rod 7 fixed to the spring seat 8 is slidably supported by the bearing portions 2b and 2c of the casing 2 and is connected by the connecting pins 16 and 18. Connected via 17
Pull 20 toward the right toward the figure. At this time, the connecting pin 19 causes the left and right blades 14 to move toward the angle shown in FIG.
Rotate around 15. On the other hand, the other end of the guide bar 7 is provided with a connecting pin 10 and a lever 13 through an elongated hole 12 into which the connecting pin 10 is loosely fitted.
Is rotated around a fulcrum pin 23, and at this time, the biasing spring 4 engaged with the locking hole 22 provided in the lever 13 and the locking portion 21 of the casing 2 is elastically deformed, and the tip of the lever 13 is The damper 6 slidably moves on the guide portion 2a of the casing 2 by the connecting pin 9 loosely fitted in the elongated hole 11 provided in the vicinity to release the shield of the pilot air passage 28, and a part of the wind from the blower 26. Pass through the pilot wind path. At this time, the direction of the wind passing through the main windway 29 is turned to the left as shown by the arrow.

When this state is maintained for a certain period of time, the shape memory alloy spring 5 lowers its temperature and transforms from the austenite phase to the martensite phase and becomes weak, and loses the bias spring 4 to realize the state shown in FIG. The states of FIGS. 1 and 2 are repeated.

According to the present embodiment, since it is not necessary to use an electric motor as a drive source for the left and right blades 14, the facility is simple, and since the bias spring is opposed to the shape memory alloy spring, the wind direction can be quietly changed. There is.

〔The invention's effect〕

According to the present invention, since the shape memory alloy spring and the bias spring opposed thereto are used for the angle adjustment of the left and right blades of the air conditioner, the air blowing direction can be automatically changed at regular intervals. You can Further, since the shape memory alloy spring is arranged in the pilot air passage with a small air volume, even when the shape memory alloy spring transforms from the austenite phase to the martensite phase and becomes weak, it causes excessive temperature drop. However, this makes it possible to return from the martensite phase to the austenite phase again with relatively weak current flow, and energy can be saved.

[Brief description of drawings]

1 and 2 are main part explanatory views of an air conditioner showing an embodiment of the present invention, and are detailed views of a portion A in FIG. 4, and FIG. 3 is an overall side sectional view of the air conditioner, FIG. FIG. 4 is a plan sectional view of an essential part of FIG. 1 ... Air conditioner, 4 ... Bias spring, 5 ... Shape memory alloy spring, 6 ... Damper, 7 ... Guide bar,
13 …… Lever, 14 …… Left and right blades, 17 …… Connecting rod, 20…
… Connecting rod, 27 …… Upward and downward blades, 28 …… Pilot wind passage,
29 ... Main wind path.

Claims (1)

[Claims] 1. An air conditioner comprising up-down blades and left-right blades that change the direction of air flow, and a connecting rod for changing the air guide angle of the left-right blades, which is always energized. A shape memory alloy spring that drives the connecting rod when a certain temperature is reached, and a bias spring that restores the shape memory alloy spring plastically through a lever whose one end is rotatably supported. A blower for an air conditioner comprising a pilot air passage for separating the shape memory alloy spring from the main air passage and a damper for engaging and disengaging the other end of the lever to open and close the pilot air passage. Deflection device.