JPS61149756A - Airflow direction deflecting device of air conditioner - Google Patents

Abstract

PURPOSE:To automatically deflect the airflow direction in the oscillating manner by disposing a pair of rotatable airflow deflecting plates which are connected to the air guide by a shape memory alloy and an auxiliary spring at symmetri cal locations. CONSTITUTION:When the front edge of the airflow deflecting plates 30, 30' is rotated toward the adhering wall 25, the hot air having passed the heat exchanger 23 passes near the shape memory alloy 27, while, however, the hot air to the proximity of the shape memory alloy 27' connecting the airflow deflecting plate 30' and air guide 26' is deminished to cause the temperature of the shape memory alloy 27' to decrease. That is, the contracting force of the shape memory 27 becomes larger than that of the auxiliary spring 28 to cause the inner edge of the airflow deflecting plate 30 to rotate toward the adhering wall 25, and at the same time, the contracting force of the shape memory alloy 27' becomes smaller than that of the auxiliary spring 28' to cause the outer edge of the airflow deflecting plate 30' to turn toward the adhering wall 25'. Therefore, as the successive main stream of the airflow passes near the airflow deflecting plate 30', a motion opposite to the afore-said is assumed. Such a cycle is repeated thereafter.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a variable wind direction device for heating equipment and air conditioners such as air conditioners.

Conventional technology In the past, when this type of variable wind direction device was used in heating equipment, as shown in Figs. 4 and 6, there was a combustion section 2 in the valve device, and a heat exchanger concentrically surrounding the outer periphery of the combustion section 2. A guide circulation blower 4 is installed behind the heat exchanger aF 3 and blows indoor air to the heat exchanger 3. In front of the heat exchanger 3, there are a plurality of It is composed of a wind direction deflection plate 6 and a connecting rod 6 that connects each of the wind direction deflection plates 6. By driving one of the wind direction deflection plates 6 by an electric motor (not shown) through a link mechanism etc., the connecting rod is connected. The wind direction was deflected by rotating all the wind direction deflection plates 6 at the same time via the wind direction deflection plate 6. (For example, Utility Model Application Publication No. 65-57652) Furthermore, 7
8 is an electric motor for driving the guide circulation blower 4, 8 is a guard made of a perforated plate and also serves as support for the electric motor 7, and solid arrows indicate air flow.

However, with the above configuration, it is necessary to use a link mechanism or an electric motor to swing the wind direction deflection plate 6, and the configuration becomes complicated and large. there were.

Furthermore, in order to periodically swing the wind direction deflection plate 6, it is necessary to constantly supply electricity to the drive motor, which poses the problem of wasting power.

The present invention is intended to solve such conventional problems, and aims to automatically swing the wind direction deflecting plate without using electric power to swing and deflect the wind direction with a simple structure.

Means for Solving the Problems In order to solve the above problems, the variable wind direction device for an air conditioner according to the present invention has an arcuate downstream end on both sides of the heat exchanger,
A blower guide having an outwardly expanded attached wall is provided, and a shape memory alloy and an auxiliary spring are used to connect the blower guide to the downstream side of the heat exchanger and at a symmetrical position with respect to the heat exchanger. A pair of coupled rotatable wind deflection plates is arranged, and the wind direction deflection plates are oscillated by utilizing the temperature difference of the blown air, so that the wind direction can be oscillated and deflected.

Function The present invention has the configuration described in -E, in which the attached wall and the wind deflection plate constitute a so-called fluid control element having a Coanda effect, and a pair of wind deflection plates are formed by a shape memory alloy and an auxiliary spring. The wind direction can be swung and deflected by automatically swinging by utilizing the temperature difference of the passing air.

EXAMPLE Hereinafter, an example in which the present invention is applied to an oil-burning device will be described based on the accompanying drawings.

As shown in FIG. 1, FIG. 2, and FIG.
1 includes a combustion section 22 that uses petroleum as fuel, a heat exchanger 23 concentrically surrounding the outer periphery of the combustion section 22, and an indoor circulation blower behind the heat exchanger 23 that sends indoor air to the heat exchanger 23. At the same time, on both sides of the heat exchanger 23, there are attached walls 25 whose front ends are arcuate and expand outward.
A blower guide 26,26' having a diameter of 25' is provided, and is located on the front side of the heat exchanger 23, and is located on the front side of the heat exchanger 23.
3, in a symmetrical position, the ventilation guide 26.26
A pair of wind direction deflection plates 30, 30' that rotate around rotational shafts 29, 29' are arranged near '. The rear ends of the two wind deflection plates 30 and 30' are connected through a shape memory alloy 27 and 27' that generates a contractile force at high temperatures, and the front end is connected to a shape memory alloy 27 and 27' that generates a contraction force when the temperature is low. Alloy 27
．． It is connected to the blower guides 26 and 26' via auxiliary springs 28 and 28' for expanding the air guides 27'.

In addition, 31 is an electric motor for driving the indoor circulation blower 24, and a guard consisting of a 32-hole plate and serving also as a support for the electric motor 31. Further, solid line arrows indicate air flow.

According to this configuration, as shown in FIG. 2, the wind direction deflection plate 30.
Rotate the front end of 30' toward the attachment wall 26 and attach it to the attachment wall 2.
6 and the wind direction deflection plate aO, the hot air after passing through the heat exchanger 23 is deflected in the direction of the attached wall 2B, so that the hot air passes near the shape memory alloy 27.
At the same time, the other wind direction deflecting plate 30' and the air blowing guide 26
Since it becomes difficult for hot air to flow near the shape memory alloy 27' that connects the shape memory alloy 27', the temperature of the shape memory alloy 27' decreases.

That is, the contraction force of the shape memory alloy 27 becomes larger than the contraction force of the auxiliary spring 28, and at the same time as the inner end of the wind deflecting plate 30 is rotated in the direction of the attached wall 26, the contraction force of the shape memory alloy 27' becomes larger than the contraction force of the auxiliary spring 28. 28', the outer end of the wind deflection plate 30' is rotated toward the attachment wall 26'. Therefore, the main flow of air is then directed to the wind deflection plate 3.
In order to flow near 0', shape memory alloy 2
The temperature near 7 decreases, and the wind deflection plate 3 moves in the opposite direction to the above.
The operation is to rotate 0°30', and the state shown in FIG. 2 is restored. Thereafter, in order to automatically repeat this operation, the wind direction deflection plates 30, 30' continue to swing and deflect the wind direction.

Effects of the Invention According to the present invention, the wind direction is deflected by using the Coanda effect of the attached wall and the wind deflection plate, and the wind direction deflection plate is automatically deflected by using the shape memory alloy and the temperature difference caused by the deflection of hot air. Since the wind direction is swung and deflected by swinging, the variable wind direction device can be made smaller, and since it uses hot air, no electricity is consumed during operation, providing an economical air conditioning device. be able to.

[Brief explanation of the drawing]

Fig. 1 is a front view of an air conditioner having a variable wind direction device according to an embodiment of the present invention, Figs. 2 and 3 are sectional views of the air conditioner, and Fig. 4 is an air conditioner showing a conventional configuration. A front view of the air conditioner, and FIG. 6 is a sectional view of the air conditioner. 23...Heat exchanger, 25, 25'...
・・Adhering wall, 26° 26′ ・・・・Blower guide, 2
7.27'--Shape memory alloy, 28.28'-
...Auxiliary spring, 30, 30'...Wind direction - direction board. Name of agent: Patent attorney Toshio Nakao and 1 other person2/
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- Adhesive wall 26-26 - Conveying Cγ id. x-x'--One direction towards Confucianism 31-11 electric rock' 32-11 power cord 21-m-exterior z2--burner part 2.3-@crossing ticket z4--1 Imperial Palace #J trap buried slope δzs”--1 attached wall z6°Zt;-a Otori guide V 30'-Machiyaya facing board 32-11 force ゛-de

Claims (1)

[Claims] Air blow guides are provided on both sides of the heat exchanger, and the downstream ends of the air flow are arc-shaped and have attached walls that expand outward.
A pair of rotatable rotatable parts located downstream of the heat exchanger and between the heat exchanger and the air blowing guide, the upstream end of which is connected to the air blowing guide by a shape memory alloy, and the downstream end of which is coupled to the air blowing guide by an auxiliary spring. A variable wind direction device for air conditioners equipped with wind deflection plates.