JPH09273949A - Air quantity/static pressure restricting apparatus for blower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously determine an optional amount of air and a high static pressure in restricting the amount of air to be blown from a blower used for air conditioner. SOLUTION: In a blower A, a blast port 2 is opened at one air tunnel 1 while a rotary vane body 3 is rotatably supported freely inside. In an air quantity/static pressure restricting device 4, an air quantity/statistic pressure regulating plate is mounted integral on a part of the internal air tunnel 1 of the blast port 2 at a specified angle (a) of inclined expansion with respect to a track of rotation of the blowing rotary vane body 3 to simultaneously restrict the amount of air blown from the blast port 2 and the pressure thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly directed to an air blower used in a cooler, a warm air conditioner or the like for obtaining an arbitrary amount of air and a high static pressure at the same time. This is a device for restricting the air volume and static pressure in an odor blower.

[0002]

2. Description of the Related Art Normally, when a predetermined air volume is obtained in an air conditioner, the air blown from the air blower is sent out directly from the air blower. Was diffused and the static pressure became low, and it was difficult to find the ideal atmospheric pressure. As a means for solving this, in some blowers, the relationship between the blown air volume and the air pressure is adjusted by using a mechanism such as an air volume changing damper.
Is larger, the wind pressure B is lower, and on the other hand, the smaller the air volume A is, the higher the static pressure is. That is, the relation between the air volume A from the air outlet and the wind pressure B is A> B or A <B. For this reason, it was said that a special fan such as a limiter or a turbo fan was required as a means for seeking high rotation.

[0003]

However, when a special fan such as the air wheel fan or the turbo fan is used, there are drawbacks such that noise noise is relatively high and the overall shape is bulky and heavy. It was According to the present invention, the above-mentioned relation of air volume = wind pressure and relation of A> B = A <B are incorporated into the wind tunnel of the blower by using a very simple device, so that the above-mentioned A <B or A>
Define the relationship of B to the air volume and static pressure suitable for the air conditioning capacity,
Therefore, the present invention aims to provide an effective and economically effective blower by simultaneously supplying the optimum air volume and static pressure to the target room.

[0004]

The present invention has been developed in view of the above-mentioned object, and a drawing illustrating the outline thereof will be described. An air blower port 2 is opened in one of the wind tunnels 1,
Further, in the blower A in which the rotary blade body 3 is rotatably supported, a part of the internal wind tunnel 1 of the blower port 2 has a constant inclination angle a with respect to the rotation trajectory of the blower rotary blade body 3. An air volume and static pressure restriction device in a blower of an air blower, characterized in that an air flow and static pressure restriction plate 4 is integrally attached and formed to restrict the air flow and the air pressure from the air outlet 2 at the same time.

[0005]

As described above, according to the present invention, the air flow rate / static pressure restricting plate 4 is attached to the air blower port 2 of the blower A at a constant inclination angle a with respect to the rotating direction of the rotary blade body 3 to blow the air blower port. Since the outlet diameter C in the two portions is automatically restricted, the allowable blower passage in the blower opening 2 is formed in advance by the air volume / static pressure restriction plate 4 in a constant diameter dimension. In addition, the blast generated by the rotor body 3 has an air volume A <high static pressure B at the blast port 2 portion,
At the same time as the small air volume A, it is possible to reliably and easily obtain a very high static pressure wind speed state, and thus it is possible to obtain optimum air conditioning deployment for the indoor environment.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the drawings. In A, a rotary wing body 3 is rotatably supported in a wind tunnel 1 having a blower opening 2 on one side. Reference numeral 4 denotes an air volume / static pressure restriction plate, which is provided inside the wind tunnel 1 in the vicinity of the blower port 2 so as to form a constant angle of expansion a with respect to the rotation locus of the blower rotor body 3 and a space therebetween. Are separated by a fastener such as a screw or welded and integrally attached. It should be noted that the above installation inclination angle a is an optimum air volume = air pressure relationship according to the initially calculated air conditioning capacity, that is, A>
B-A <B = It is desirable to determine by the outlet diameter C. For example, an angle of about 15 mm is said to be the most ideal.

Further, in the present invention, the entire shape of the air volume / static pressure restricting plate 4 is curvedly formed in the rotating direction of the rotary vane body 3 and is integrally attached to the inner surface of the wind tunnel 1. It is also possible to reduce the resistance at the time of rewinding airflow and easily reduce the noise generated during airflow.

[0008]

As described above, the air volume and static pressure restricting device in the blower according to the present invention has an air volume having a constant inclination angle a with respect to the rotation locus of the rotary blade body 3 in the wind tunnel 1 of the blower. Since the combined static-pressure restriction plate 4 is integrally attached, the air flow generated in the wind tunnel 1 is only the air volume A required from the blower port 2 due to the action of the above-mentioned combined air-pressure restriction plate 4. On the other hand, the air volume and the air pressure B are static pressures in the vicinity of the inside of the blower port 2 and the ability suitable for the air conditioning function of very high static pressure can be obtained. Therefore, in the present invention, an extremely high static pressure air flow can be easily obtained at the same time as the restriction of the air volume despite the fact that the power is small. It is the most suitable blower as an energy-saving blower with a small overall size, a simple structure, a cheap price, no fear of failure, and less power consumption.

Further, according to the second aspect of the present invention, the entire shape of the air volume / static pressure restricting plate 4 is set to the rotary blade body 3.
It is formed in a curved shape in the direction of rotation, and is integrally attached to the inside of the blower opening 2 and the wind tunnel 1 to reduce the resistance during the rewinding wind and facilitate the noise generated during the blowing. There is also an effect that the number is reduced and a better rotating body can be obtained and obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view schematically showing the internal structure of a device for restricting air flow and static pressure in a blower according to the present invention.

[Explanation of symbols]

 A Blower 1 Wind tunnel 2 Blower 3 Rotor body 4 Airflow and static pressure restriction plate a Inclination and expansion

Claims (2)

[Claims] 1. A blower A comprising a wind tunnel 1 having a blow port 2 opened therein, and a rotary vane body 3 rotatably supported therein, wherein an air volume and static pressure constraint is provided near the blow port 2. Board 4
Is a constant inclination angle a with respect to the rotation trajectory of the blast rotor 3.
A device for restricting air volume and static pressure in a blower, characterized in that the device is formed so as to be installed in a slanted shape in order to obtain an appropriate air volume and static pressure for air conditioning capacity from the air outlet 2 at the same time. 2. The air volume / static pressure restriction plate 4 has a constant inclination angle a with respect to the rotation locus of the blower rotor 3, and the air flow / static pressure restriction plate 4 is curved in the rotational direction. The device for restricting air flow and static pressure in a blower according to claim 1, characterized in that the device is integrally attached to the inside of the blower port 2 of the wind tunnel 1.