JPH06117657A - Fan - Google Patents

Abstract

PURPOSE:To provide a fan having a simple configuration capable of forming a current of air which is comfortable to a human body. CONSTITUTION:There are provided a main fan 10 for blowing a main air flow and auxiliary fan 20 and 21 for blending secondary flows of air in the main flow intermittently or in a variable direction. The flows of air from the main fan 10 and the auxiliary fans 20, 21 are mixed to form a fluctuating flow of air like a natural wind with a simple configuration.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower suitable for an air conditioner such as a car air conditioner for automobiles, as well as an air conditioner for indoor cooling and heating for home and business.

[0002]

2. Description of the Related Art In the case of various air conditioners and fans that have been conventionally used, it is possible to adjust the amount of wind force stepwise, but the adjusted blast is sent in a uniform and unbalanced condition and hits the human body. , Sometimes with discomfort.
In recent years, air-conditioning equipment that introduces fluctuation control called fuzzy control, for example, has become widespread in order to eliminate such problems and embody a so-called “fluctuation style” that is close to natural wind.

[0003]

However, in this type of air conditioning equipment, in order to control the rotation of the fan motor of the blower to artificially form the strength and weakness of the blast and the fluctuating wind, complicated control of the motor rotation speed is required. Circuits and arithmetic circuits were required, which resulted in product cost.

Therefore, it is an object of the present invention to provide an air blower which has a simple structure and is capable of forming a comfortable air blow on a human body.

[0005]

In order to achieve this object, an air blower according to the present invention comprises a main air blower for blowing a mainstream air, and a mainstream wind in which a sidestream air is intermittently or variable in direction. It is configured to include at least one sub-blower to be merged.

[0006]

The fluctuating wind is formed by applying at least one auxiliary blower to the mainstream wind sent from the main blower, and in some cases from a plurality of auxiliary blowers, the auxiliary wind. By sending the sidestream wind intermittently from any direction or by changing the direction of the sidestream wind like swinging, a fluctuating wind close to the natural wind is formed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a blower according to the present invention will be described below with reference to the drawings. Here, the use mode is particularly described assuming a combination with a cooling and heating air conditioner, but it is also applicable to blast cooling and warm air drying of semi-finished products in other food manufacturing processes and the like.

FIG. 1 is a perspective view showing the structure of the air blower of the embodiment. A main blower 10 is fixed by a supporting member 2 in a housing (not shown) of the apparatus, and air can be blown in a predetermined direction from a duct port 12 by driving an internal motor by turning on electricity. The blast represented by arrow M in the figure (hereinafter referred to as mainstream blast M) may have a function of switching the strength and weakness of the wind force and the wind direction, and such a function and structure are possible within the range of application of known technology.

Further, in the housing, a sub-blower 20 which is also called a slave unit having a smaller specification than the main blower 10 in terms of performance and size is arranged, and is fixedly arranged via a support member 3. In the example of FIG. 1, it further has a sub fan 21 which is another child machine, and the two sub fans 20 and 21 are coaxially supported by the support member 3 in parallel at an appropriate angle. That is, the duct ports 20a, 21 of the auxiliary blowers 20, 21
From a, the air blow represented by the arrow S in the drawing (hereinafter referred to as the side air blow S) is blown toward the main air blow M blown from the main air blower 10 at an appropriate angle and can be joined.

The number of sub-fans to be installed is not limited to two, and it is possible to use more than one or a minimum of one. As shown in FIGS. 2 to 4, regardless of the number of installed units, it is possible to join the mainstream blast M with the subsidiary blast S from any direction.

The air blow from the auxiliary air blowers 20 and 21 can be, for example, discontinuous intermittent air blow in which air blow and stop are alternately repeated at intervals of several seconds. No special control is required for the intermittent operation of the fan motor, and it is possible by incorporating a simple timer circuit of a known technique.

In addition to the intermittent blower mechanism, the body of the auxiliary blowers 20 and 21 itself is used as a swinging mechanism, and a swinging range is set, and within this range, the direction of the sidestream blower air S from the duct openings 20a and 21a is continuous. It is also possible to change the ventilation system.
Known techniques can be applied or applied to the swing mechanism itself.

2 and 3 each show an example in which one sub-blower is used. That is, in the case of FIG. 2, for one main blower M from the main blower 10, one sub blower 22
Is arranged in a higher order, and the sidestream blast S is applied from above the mainstream blast M to join them. Further, in the case of FIG. 3, an example is shown in which the sub-blower 23 is arranged in a lower position with respect to the main-stream blast M from the main blower 10 and the sub-stream blast S is applied from above the main-stream blast M to join the main-stream blast M. There is.

On the other hand, in the embodiment of FIG. 4, two first and second auxiliary blowers 24 and 25 are arranged vertically, and when one of them is operated, the other is stopped. ing. That is, it has both the structures of FIG. 2 and FIG. 3, and it is possible to join the mainstream blast M with the mainstream blast M from above or below. Although it is possible to form a fluctuation by generating a turbulent flow with the mainstream airflow M by using a method in which two of the first and second auxiliary airflow fans 20 and 21 are simultaneously blown from above and below, the sidestream airflow S from above and below is generated. Since it may be possible to cancel each other out, it is desirable to use the operation switching system for one side and the other side as in the embodiment.

Therefore, the following effects can be obtained by the above configuration.

In the embodiment shown in FIGS. 2 and 3, the sub blower 2 is used.
The sidestream blasts S from 2, 23 collide with the mainstream blast M from the main blower 10 from the upper side or the lower side, and join together to generate a kind of turbulent flow due to the mainstream blast M and the sidestream blast S. It becomes a fluctuation wind and is suitable for the human body. When the auxiliary blowers 22 and 23 are of the intermittent blowing type or the swinging mechanism type, the effect of fluctuation is particularly enhanced.

In the embodiment of FIG. 4, the following applications are possible by switching the operation of the first and second auxiliary blowers 24 and 25. That is, the two first and second auxiliary blowers 24, 2
By arranging 5 up and down, it is possible to have a flap adjustment function during cooling and heating. For example, at the time of heating, when the upper first auxiliary blower 24 is operated and the lower second auxiliary blower 25 is stopped, the warm mainstream blower M is directed downward. On the contrary, during cooling, when the upper first sub-blower 24 is stopped and the lower second sub-blower 25 is operated, the cool mainstream blower M is directed upward. In this way, it can be adjusted according to the characteristics of warm air and cold air.

[0018]

As described above, the air blower according to the present invention is particularly suitable for an air conditioner for heating and cooling, and a complicated electronic control is required to control the fluctuation of comfortable air blow to the human body as in the past. It is possible to form a fluctuating wind close to the natural wind with a simple mechanism by combining the air blows by the parent blower and the child blower without the need.

[Brief description of drawings]

FIG. 1 is a perspective view of an air blower according to a first embodiment of the present invention.

FIG. 2 is a side view of a blower according to a second embodiment.

FIG. 3 is a side view of an air blower according to a third embodiment.

FIG. 4 is a side view of an air blower according to a fourth embodiment.

[Explanation of symbols]

10 ... Main air blower, 20-25 ... Sub air blower, M ... Main air flow, S ... Sub air flow.

Claims (1)

[Claims] 1. A blower comprising: a main blower that blows a mainstream wind; and at least one subblower that joins the mainstream wind with a sidestream wind intermittently or in a variable direction. .