JPH0354260B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a variable wind direction device for an air conditioner such as a heating device or an air conditioner.

Conventional technology Conventionally, as shown in FIGS. 6 and 7, this type of variable wind direction device used in heating equipment includes a combustion section 2 in an exterior 1 and a heat exchanger concentrically surrounding the outer periphery of the combustion section 2. 3, and an indoor circulation fan 4 that sends air from the room to the heat exchanger 3, and downstream of the air flow of the heat exchanger 3, there are a plurality of wind direction deflecting plates 5 that swing from side to side, and A connecting rod 6 is provided to connect each of the wind deflecting plates 5, and one of the wind deflecting plates 5 is driven by an electric motor via a link mechanism or the like. They all rotated at the same time to deflect the wind. (For example, Japanese Utility Model Application No. 55-57652) Note that 7 is an electric motor for driving the indoor 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. shows.

Problems to be Solved by the Invention However, with the above configuration, it is necessary to use a link mechanism or an electric motor to swing the wind direction deflection plate 5, and there is a problem that the configuration becomes complicated and large. Ta. Furthermore, in order to periodically swing the wind direction deflecting plate 5, it is necessary to constantly energize the driving electric motor, resulting in the problem of wasted power consumption.

The present invention solves such conventional problems,
To automatically swing a wind direction deflection plate to swing and deflect the wind direction without using electric power with a simple configuration, and also to fix the wind direction to a constant value.

Means for Solving the Problems In order to solve the above problems, the variable air direction device of the present invention includes air blow guides on both sides of the heat exchanger, the downstream ends of which have attached walls that are arcuate and expand outward. a control plate connected to the ventilation guide by a shape memory alloy and an auxiliary spring, located downstream of the heat exchanger and symmetrically with respect to the heat exchanger; and a control plate and a rotation shaft. a wind direction deflection plate connected by a control plate, and a rocking stop bar that is slidable in a direction substantially perpendicular to the rotation axis, extending over the side surface of the wind direction deflection plate and the control plate, and utilizing the temperature difference of the blown air. By swinging the wind direction deflection plate, the wind direction can be oscillated and deflected, and the wind direction can also be fixed.

Effects According to the present invention, with the above-described configuration, the adhesion wall and the wind deflection plate constitute a so-called fluid control element having a Coanda effect, and the pair of wind deflection plates are controlled by the auxiliary spring of the shape memory alloy. The temperature difference in the air passing through this area is used to automatically oscillate the air.
It is capable of swinging and deflecting the wind direction.
Furthermore, by separating the swing stop rod of the wind deflection plate from the control plate, the swinging of the wind deflection plate can be stopped, and the wind direction can also be kept constant.

Embodiment Hereinafter, a case where an embodiment of the present invention is used in an oil-burning device will be described based on the accompanying drawings.

As shown in FIGS. 1 to 5, inside the exterior 21 there is a combustion section 22 that uses petroleum as fuel, a heat exchanger 23 that concentrically surrounds the outer periphery of the combustion section 22, and indoor air is supplied to the heat exchanger 23. At the same time, on both sides of the heat exchanger 23, there are attached walls 25, 2 whose downstream ends for air flow are arcuate and expand outward.
Air blowing guides 26, 26' having a diameter of 5' are provided.
On the other hand, the heat exchanger 23 is located downstream of the heat exchanger 23 and near the ventilation guides 26, 26'.
A pair of rotating shafts 29, 2 are located at symmetrical positions with respect to
Control plates 33 and 33' are provided on the side of the indoor circulation blower 24, and control plates 33 and 33' are provided on the side of the indoor circulation blower 24, and control plates 33 and 33' are provided on the side opposite to the indoor circulation blower 24, and are rotatable separately around the rotation shafts 29 and 29'. Deflection plates 30, 30' are provided. In addition, the swing stop rods 34, 34' are connected to the side surfaces of the control plates 33, 33' and the side surfaces of the wind deflection plates 30, 30', so that the operation of the control plates 33, 33' is controlled by the wind deflection plates 30, 30'. It is arranged to convey the message. Furthermore, the control plates 33, 33' include shape memory alloys 27, 27' that generate contraction force at high temperatures to change the direction of the control plates 33, 33';
When 7, 27' becomes low temperature, shape memory alloy 27,
It is connected to the blower guides 26, 26' via auxiliary springs 28, 28' which extend the control plates 27' and change the direction of the control plates 33, 33'. In addition, 31 is an electric motor for driving the indoor circulation blower 24, and 32
A guard is made of a perforated plate and also serves to support the electric motor 31. Also, solid arrows indicate air flow.

According to the above configuration, when the wind deflection plate 30 is rotated in the direction of the attached wall 25 as shown in FIG. 2, the temperature after passing through the heat exchanger 23 is The wind is deflected in the direction of the attached wall 25, and the high-temperature warm air passes near the shape memory alloy 27. At the same time, when the wind direction deflecting plate 30' is rotated toward the heat exchanger 23 side, it becomes difficult for hot air to flow around the shape memory alloy 27' that connects the control plate 33' and the blower guide 26', so that the shape The temperature of memory alloy 27' decreases. That is, the contraction force of the shape memory alloy 27 becomes larger than the expansion force of the auxiliary spring 28, and the control plate 3
3' in the direction of the blower guide 26', the contraction force of the shape memory alloy 27' is applied to the auxiliary spring 2.
8' becomes smaller than the tensile force of 8', and the wind deflection plate 30' is rotated in the direction of the attached wall 25', and the wind deflection plate is oriented as shown in FIG. Therefore,
Next, since the main flow of air flows near the wind deflection plate 30', the temperature near the shape memory alloy 27 decreases and the temperature near the shape memory alloy 27' rises, in the opposite direction to that described above. Wind direction deflection plate 3
0 and 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.

On the other hand, if you want to stop the wind direction from automatically swinging and fix the wind direction only in one direction, pull out the swing stop rods 34, 34' in the direction of the wind deflection plates 30, 30', and 33, 33' and the wind deflection plate 30,
Eliminate the connection with 30'. That is, when the swing stop bars 34, 34' are separated from the control plates 33, 33', the swing of the control plates 33, 33' due to the expansion and contraction of the shape memory alloys 27, 27' is caused by the movement of the control plates 33, 33'.
0 and 30', and the direction of the wind direction deflection plates 30 and 30' can be kept constant as shown in FIG. At this time, the control plates 33, 3
Since the shape memory alloys 3' can be moved freely regardless of the wind direction, the shape memory alloys 27, 27' can be expanded and contracted arbitrarily depending on the temperature of the hot air. Therefore, the load on the shape memory alloys 27, 27' can be reduced and durability can be improved.

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 deflection plate is automatically deflected by using the temperature difference between the shape memory alloy and the deflection of hot air. The wind direction can be swung and deflected by swinging, and the wind direction can be kept constant. Moreover, the wind direction variable device can be made smaller, and it consumes less electricity during operation to utilize warm air. Therefore, it is possible to provide economical air conditioning equipment.

[Brief explanation of drawings]

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 to 4 are sectional views of the same air conditioner, and FIG. 6 is a front view of a conventional air conditioner, and FIG. 7 is a sectional view of the air conditioner. 23... Heat exchanger, 25, 25'... Adhering wall,
26, 26'... Air blow guide, 27, 27'... Shape memory alloy, 28, 28'... Auxiliary spring, 30,
30'... Wind direction deflection plate, 33, 33'... Control plate,
34, 34'... Swing stop bar.

Claims (1)

[Claims] 1. A blower guide provided on both sides of the heat exchanger, the downstream end of which has an arc-shaped attached wall that expands outward, and a blower guide located downstream of the heat exchanger and between the heat exchanger and the blower guide. a control plate coupled to the blower guide by a shape memory alloy and an auxiliary spring; and a wind deflection plate rotatably coupled to the control plate via a rotating shaft, the wind deflection plate and the control plate A variable wind direction device for an air conditioner, comprising a swinging stop bar that can slide over a side surface in a direction substantially perpendicular to the rotating shaft.