JP3198936B2 - Air flow control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blowout air flow control device such as an air conditioner.

[0002]

2. Description of the Related Art A conventional air flow control device for an air conditioner will be described with reference to FIG. Fig. 19 shows Tokuhei 8-3
It is a longitudinal cross-sectional view which shows the indoor unit of the air conditioner of Unexamined-Japanese-Patent No. 0600. The air conditioner has a heat exchanger 1, a blower 2,
An indoor unit is constituted by a blowing nozzle 10 for blowing the blowing airflow 11, a vertical wind direction deflecting plate 12 for changing a vertical blowing angle of the blowing airflow 11, and a left and right wind direction deflecting plate 13 for changing a horizontal blowing angle of the blowing airflow 11. In order to obtain the necessary capacity for heating, it is conceivable to secure a large air volume or raise the temperature of the blown air (higher refrigerant condensation temperature). Due to limitations, the temperature of the blown airflow tends to increase. When the temperature of the blown air becomes high, the effect of the buoyancy increases and the air flow tends to rise.As a result, the high temperature air stays near the ceiling in the room and the temperature near the floor does not rise sufficiently, which is not suitable for indoor occupants. There was a possibility of giving pleasure. for that reason,
In the conventional method, one method of overcoming the buoyancy of the high-temperature airflow to reach the floor surface and obtain a comfortable indoor environment with a small temperature difference between the vicinity of the ceiling and the floor surface in the room is as follows. Raising the downward component was performed. For example, in the example of FIG.
Means to increase the wind speed of the vertically downward blowing airflow by making the airflow path formed by the vertical wind direction deflecting plate 12 and the lower wall surface of the blowing nozzle 10 narrow toward the downstream. I was taking it.

[0003]

In the above-mentioned conventional system, it is necessary to increase the pressure generated by the blower 2 in order to obtain a required wind speed, and from the viewpoint of increasing the power of the blower. There was a problem. In particular, in a room having a large space, the conditions for securing the wind speed become more severe during heating because of the increase in buoyancy due to the high temperature of the blown airflow. In addition, in order to make warm air reach far away, it is necessary to make the blowing angle of the air current close to horizontal, but in the conventional method, since the angle of the blowing nozzle 10 is fixed, in addition to the mode in which blowing is generally downward, There was a problem that it was impossible to secure the wind speed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and allows an airflow to reach a floor surface without causing a decrease in heating capacity and an increase in power of a blower during heating, thereby providing a comfortable indoor environment. It is intended to realize.

[0005]

According to a first aspect of the present invention, there is provided a blowout airflow control device in which a blowout nozzle communicates with an end of an air passage formed in a main body, and an airflow from the blowout nozzle to the surrounding outside air. in what to blown out, on
The blowing air of the nozzle structure constituting the blowing nozzle
One or more protruding into the blown air stream on the downstream side of the stream
The three-dimensional structure is provided, and the balloon is blown out from the three-dimensional structure.
The axis of the vortex flows toward the downstream side of the airflow,
Generate a vertical vortex in the same direction as this, and by the vertical vortex,
Take ambient air into the airflow blown out into the outside air
It was made .

[0006]

[0007] In the blowout airflow control device according to a second configuration of the present invention, the three-dimensional structure according to the first configuration, wherein:
One side is a triangular or rectangular plate in contact with the blowing nozzle structure, and the one side in contact with the blowing nozzle structure has an angle with respect to the flow direction of the blowing airflow.

[0008]

[0009]

[0010]

[0011]

[0012] In the blowout airflow control device according to a third configuration of the present invention, in the first configuration, the dimension h from the blowout nozzle structure surface in contact with the three-dimensional structure to the protruding tip end of the three-dimensional structure is as follows. From about 1/20 times the width W of the blowing nozzle in the direction in which the three-dimensional structure protrudes to 1 to 1
/ 3 times.

[0013]

According to a fourth aspect of the present invention, in the blowout airflow control device according to the first aspect , the three-dimensional structure may be such that:
The bottom surface has a conical shape or an elliptical cone shape in contact with the blowout nozzle structure.

[0015]

According to a fifth aspect of the present invention, there is provided the blowout airflow control device according to the first aspect , wherein the three-dimensional structure includes:
The bottom surface has a polygonal pyramid shape in contact with the blowing nozzle structure.

[0017]

[0018]

[0019]

According to a sixth aspect of the present invention, in the blowout airflow control device according to the first aspect , the three-dimensional structure according to the first aspect ,
It is implanted or provided integrally on the inner wall surface below the blowing nozzle.

[0021] The blowout airflow control device according to the seventh configuration of the present invention includes a blowout airflow terminal at an end of an air passage formed in the main body.
The nozzle is connected to the outside air from this blowing nozzle.
In the blowout airflow control device that blows out the airflow,
The nozzle provided in the nozzle structure
The left and right wind direction deflecting plates that guide the
At least one of the upper and lower tip positions on the downstream side of the airflow,
One or more three-dimensional projections protruding into the outlet airflow
A structure is provided, and the air flow blows out from the three-dimensional structure
Towards the side, the axis of the vortex is the same as the flow of the blowing airflow
Generates a vertical vortex that becomes the direction, and the vertical vortex causes
The ambient air is taken into the blown air flow .

According to an eighth aspect of the present invention, there is provided a blowout airflow control device, wherein a blowout airflow control device is provided at an end of an air passage formed in a main body.
The nozzle is connected to the outside air from this blowing nozzle.
In the blowout airflow control device that blows out the airflow,
The nozzle provided in the nozzle structure
The upper and lower wind direction deflection plates that guide the
One or more three-dimensional structures protruding into the
A structure is provided, and the air blows from the three-dimensional structure to the downstream side of the airflow.
The direction of the vortex axis is the same as the
A vertical vortex is generated that blows into the outside air.
The surrounding air is taken into the discharged airflow .

The blowout airflow control device according to the ninth structure of the present invention, when the blowout airflow temperature is lower than or equal to the ambient air in the first or eighth structure,
The three-dimensional structure does not interfere with the blowing airflow.

According to a tenth aspect of the present invention, there is provided a blow-off airflow control device, wherein a blow-off airflow control device is provided at an end of an air passage formed in a main body.
The nozzle is connected to the outside air
In the blowout airflow control device that blows out the airflow,
Provided in the nozzle structure that constitutes the blowout nozzle
Shape of left and right wind direction deflector that guides blown air flow in the left and right direction
From the upstream to the downstream of the blown air flow.
The trapezoidal shape is generally trapezoidal and increases in the direction
The axis of the vortex is located on the downstream side of the airflow
A vertical vortex is generated in the same direction as the flow of
And take ambient air into the airflow blown out into the outside air
It is like that .

According to an eleventh aspect of the present invention, there is provided a blow-off airflow control device which blows air to a terminal end of an air passage formed in a main body.
The nozzle is connected to the outside air
In the blowout airflow control device that blows out the airflow,
Provided in the nozzle structure that constitutes the blowout nozzle
Blowing of left and right wind direction deflectors that guide the blown air flow in the left and right
In the downstream part of the exhaust air flow,
Providing at least two guide vanes that can be driven,
Downstream of the airflow from the wing, the axis of the vortex is
Generates a vertical vortex in the same direction as the flow of the current,
More ambient air into the airflow blown into the outside air
It is a thing that I chose .

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. 1 (a) (b) and 2 (a)
(B) shows a front view, a longitudinal sectional view, a partial perspective view, and a partial plan view of the blowout airflow control device according to the first embodiment of the present invention. FIG. 1 shows a heat exchanger 1, a blower 2, and a blowing nozzle 1.
An indoor unit of an air conditioner composed of 0, 10
a is an upper inner wall (nozzle upper surface) of the blowing nozzle structure constituting the blowing nozzle 10, 10b is a lower inner wall (nozzle lower surface) of the blowing nozzle structure, 11 is a blowing airflow, and 12 is a plurality of blowing nozzle structures. Vertical wind-direction polarizing plates are provided in parallel and guide the blowout airflow 11 in the vertical direction, and 13 are left and right wind-direction polarizing plates provided in parallel to the blowout nozzle structure to guide the blowout airflow 11 in the left-right direction. Further, on the nozzle upper surface 10a, a plurality of rectangular triangular plate-shaped three-dimensional structures (longitudinal vortex generators) 21 are arranged along the side of the downstream end of the blown airflow 11, and the bottom side is the nozzle upper surface 10a. It is planted to join.
As shown in FIG. 2, the plate-shaped three-dimensional structure 21 projects perpendicularly from the nozzle upper surface 10a into the blown airflow 11, and the nozzle three-dimensional structure 21 has a nozzle upper surface 10a.
Has an angle θ with the flow direction of the blown airflow 11, and the angle is 2 in the first embodiment.
At 0 degrees, it is set equally between all the implanted plate-shaped three-dimensional structures 21. The plate-shaped three-dimensional structure 2
The height h of 1 is one-tenth of the width W of the blowing nozzle in the direction in which the plate-shaped three-dimensional structure 21 protrudes, and the length L is three times the height h. The installation interval S between the adjacent plate-shaped three-dimensional structures 21 is set to five times the length L.

FIG. 3 is a partial perspective view of the plate-shaped three-dimensional structure 21 attached to the nozzle upper surface 10a as viewed from below, and is an explanatory view for explaining the flow of the blown airflow near the three-dimensional structure 21. It is. When the blown airflow passes through the three-dimensional structure 21, a pressure difference is generated between the surface (pressure surface) on which the wind is applied and the back surface (negative pressure surface), and a right-angled triangle driven by this pressure difference Flows over the hypotenuse from the pressure surface side to the suction surface side
(The axis of the vortex forms a vortex in the same direction as the flow of the blown airflow), and the longitudinal vortex 31 is stretched downstream by the inertia of the mainstream of the blown airflow 11 and transported. As described above, the plate-shaped three-dimensional structure 21 shown in the present embodiment has a function as a vertical vortex generator, and the three-dimensional structure having the function of vertical vortex generation is also used in the following embodiments. It is generally called a vertical vortex generator. At this time, immediately after being blown out from the nozzle 10, the high-temperature blown airflow 11 forms a part of the fluid mass in the blown airflow and the fluid in the surrounding air by the action of the vertical vortex 31 on the boundary surface with the low-temperature surrounding air. Exchange with a part of the mass is promoted. As a result, the temperature of the blown airflow 11 decreases, and the temperature difference from the ambient air decreases. Therefore, the buoyancy acting vertically upward on the blown airflow 11 is reduced, and the straightness of the blown airflow 11 vertically downward is improved without using the means of increasing the initial flow velocity of the blown airflow. This allows the heating airflow to reach the floor of the room without soaring, thereby realizing an indoor environment in which there is almost no difference in temperature between the upper and lower parts of the room, and makes it possible to improve the comfort of the indoor space during heating. In this method, to reduce the effect of buoyancy itself, even in a room with a relatively large space, the above-mentioned comfort is improved by making the airflow blowout angle closer to horizontal than before. Can be.

In the present embodiment, the longitudinal vortex generator 21
Are set as described above, but the condition under which the plate-shaped three-dimensional structure effectively functions as a vertical vortex generator is θ =
10 to 30 degrees, h / W = 1/20 to 1/3, h / L = 1
/ 5 and S / L = 5-10. The experimental results on which these are based are shown in FIGS. The horizontal axis in FIG. 4A is the angle θ between the junction side of the triangle and the airflow. The vertical axis on the left side of the figure shows the temperature difference between the center air temperature and the surrounding air at a point 1 m away from the blow nozzle when the vertical vortex generator is installed along the trajectory of the air flow. This is the normalized temperature difference divided by the temperature difference between the temperature of the center of the blown airflow at the same point and the ambient air when there is no generator. The smaller the normalized temperature difference, the better, because the mixing is promoted and the airflow temperature approaches the temperature of the surrounding air to reduce the influence of buoyancy. The result of examining the normalized temperature difference with respect to the angle θ is shown by a solid line. Further, the vertical axis on the right side of the figure is the normalized pressure loss obtained by dividing the pressure loss in the case of having the vertical vortex generator by the pressure loss in the case of no vertical vortex. If the pressure loss increases, the power of the blower increases, which is not preferable. The result of examining the normalized pressure loss with respect to the angle θ is indicated by a chain line. According to FIG. 4A, the normalized temperature difference has a minimum value at an angle of 20 degrees, and the pressure loss increases as the angle increases. The figure clearly shows that θ = 10
It is preferable to set up in the range of 30 degrees. FIG.
(B) is a graph of a change in the normalized temperature and the normalized pressure loss depending on the dimensionless height h / W of the vertical vortex generator. The solid line indicates the normalized temperature difference, and the dashed line indicates the normalized pressure loss. According to this figure, the normalized temperature difference is h / W ≒ 1
When h / W ≒ 0, the pressure loss is almost constant except that it is close to 1, but the pressure loss increases in proportion to h / W.
From this figure, it can be seen that h / W = 1 / 20-1 / 1 /
It is desirable to set it to 3. FIG. 4 (c) shows the height h of the longitudinal vortex generator normalized by the length L of the joining side of the triangle.
FIG. 6 is a diagram showing changes in the normalized temperature difference and the normalized pressure loss due to the above. The solid line indicates the normalized temperature difference, and the dashed line indicates the normalized pressure loss. According to this figure, the normalized temperature difference has a minimum value, and the normalized pressure loss increases as h / L increases. Therefore, h / L = 1/5 to 2 is the optimum value. FIG. 4D is a diagram showing a change in the normalized temperature difference and the normalized pressure loss due to S / L in which the installation interval S of the vertical vortex generator is normalized by the length L of the junction side of the triangle. is there.
The solid line indicates the normalized temperature difference, and the dashed line indicates the normalized pressure loss. According to this figure, the normalized temperature difference increases as the S / L increases, and the normalized pressure loss decreases as the S / L increases. From this figure, it can be seen that S / L = 5 to 10 is the optimum value.

In the present embodiment, the vertical vortex generator 21 is provided at the downstream end of the blown air flow on the upper surface of the nozzle. However, the same effect can be obtained by implanting the vertical vortex generator upstream of the downstream end. Further, in the present embodiment, the vertical vortex generator 21 is implanted, but it goes without saying that a similar effect can be obtained by adopting a method of integrally forming the nozzle when forming the nozzle.

The same effect can be obtained when the tip of the vertical vortex generator 21 is not made to be an apex of an acute angle as shown in this embodiment, but is made round for safety reasons. Needless to say.

In the method of installing the plurality of vertical vortex generators 21, it is not necessary that all the vertical vortex generators have the same angle θ with respect to the blown airflow. For example, in FIGS. 5A and 5B, adjacent vertical vortex generators 21 implanted on the nozzle upper surface 10 a alternately rotate clockwise θ (+ θ) and counterclockwise with respect to the flow direction of the blowing airflow 11. Are arranged in the shape of a triangle with θ (−θ). Also according to this configuration, the vertical vortex generated from the vertical vortex generator 21 causes exchange of a fluid mass between the blown airflow and the surrounding air, and the temperature of the blown airflow is reduced, thereby reducing the influence of buoyancy. The straightness of the jet vertically downward is increased. When planting in a C-shape as in the present embodiment, the rotation directions of the vertical vortices generated from the adjacent vertical vortex generators are opposite to each other, and the exchange of the fluid mass between the surrounding airflow and the blowing airflow is clockwise. or because there is no and Turkey performed biased counterclockwise has the effect of stabilizing the air flow is achieved. Note that FIG.
FIG. 5A is a view as seen from directly above, but FIG.
As shown in (c), the vertical vortex generator planted symmetrically in the right half with respect to the center in the longitudinal direction of the nozzle is clockwise θ (+
θ), and the vertical vortex generator planted in the left half has an angle of θ (−θ) clockwise, so that the airflow is stabilized as a whole.

Embodiment 2 FIG. FIG. 6 is a perspective view showing Embodiment 2 of the present invention. The plurality of vertical vortex generators 22 installed on the upper surface 10a of the blowing nozzle are rectangular plates,
As in the first embodiment, the angle θ
It is installed with. Also in this embodiment,
A longitudinal vortex is generated in the same manner as in the first embodiment, and the high-temperature blowing airflow temperature is reduced by mixing with the low-temperature ambient air.
This has the effect of reducing buoyancy acting on the blown airflow.

Embodiment 3 FIG. 7 is a perspective view showing Embodiment 3 of the present invention. The plurality of vertical vortex generators 23 installed on the upper surface 10a of the blowing nozzle have a conical shape, and are installed such that the nozzle upper surface 10a and the bottom surface of the cone are joined. Also in this embodiment, as in the first embodiment, a vertical vortex is generated from the vicinity of the conical generatrix corresponding to the hypotenuse of the triangle projected along the flow of the blowing airflow. Accordingly, the high-temperature blown airflow temperature and the low-temperature ambient air are mixed by the generated vertical vortex, which has the effect of lowering the airflow temperature and reducing buoyancy acting on the blown airflow. According to this embodiment, an effect is obtained that stronger structural strength can be obtained as compared with the solid plate-like vertical vortex generators 21 and 22 of the first and second embodiments. Further, in the present embodiment, the vertical vortex generator 23 is implanted. However, it goes without saying that the same effect can be obtained by adopting a method of integrally forming the nozzle when manufacturing the nozzle.

In the above embodiment, the vertical vortex generator 23 is used.
Has a conical shape, but an elliptical cone shape has the same effect.

Embodiment 4 FIG. FIG. 8 is a perspective view showing Embodiment 4 of the present invention. In FIG. 8A, the apex of the cone of the conical longitudinal vortex generator 23 protruding into the blowout airflow 11 is on the downstream side of the blown airflow with respect to an axis that is set upright from the center of the bottom circle. It is set to be located in. In this case as well, the longitudinal vortex is generated from the vicinity of the generatrix of the cone corresponding to the hypotenuse of the triangle projected along the flow of the blowing airflow. However, since the apex of the cone is located downstream of the blowing airflow 11, the conical curved surface is formed. Of these, the portion facing the downstream side has a large inclination, and a larger negative pressure is generated. Therefore, a stronger vertical vortex having a higher mixing speed than that of the third embodiment is generated, and the temperature of the high-temperature blowing airflow is reduced by mixing with the low-temperature ambient air, thereby reducing the buoyancy acting on the blowing airflow. This allows the heating airflow to reach the indoor floor without soaring, thereby improving the comfort of the indoor space. Further, in the present embodiment, the vertical vortex generator 23 is implanted. However, it goes without saying that the same effect can be obtained by adopting a method of integrally forming the nozzle when manufacturing the nozzle.

The longitudinal vortex is generated from the vicinity of the cone generating line corresponding to the oblique side of the projected isosceles triangle when viewed from the flow direction. Not needed. Therefore, FIG.
As shown in (b), the longitudinal vortex generator 23a having a semi-conical shape obtained by cutting off a portion downstream from the conical generating line,
Strong longitudinal vortices are generated to create a greater negative pressure.

Embodiment 5 FIG. 9 is a perspective view showing Embodiment 5 of the present invention. Top surface 10a of blow nozzle
Are arranged in a triangular pyramid shape, and one side 24c of a triangle forming a joint bottom surface between the nozzle upper surface 10a and the vertical vortex generator 24 intersects generally perpendicularly with the flow direction of the blown airflow 11. In the direction, and the above one side 2
4c is planted so as to be located on the downstream side of the blowing airflow 11 from the other two sides. Also, in this embodiment,
The intersection of the vertical line descending from the vertex A of the triangular pyramid protruding into the blown air flow to the nozzle upper surface 10a and the nozzle upper surface 10a is outside the triangle forming the bottom surface, and the one side of the triangle 24
The shape is located on the downstream side of the blowout airflow 11 from the position c. In this arrangement and shape, the vertical vortex is generated from the hypotenuses 24a, 24b on the downstream side of the triangular pyramid as shown in FIG. In the present embodiment, a triangular surface having the oblique sides 24a and 24b and the one side 24c as three sides is the nozzle upper surface 1
As a result, the negative pressure generated on the triangular surface increases, and a strong vertical vortex with a higher mixing speed is generated. Accordingly, the effect of reducing the high-temperature blown airflow temperature by mixing with the low-temperature ambient air and reducing the buoyancy acting on the airflow is further enhanced. Further, according to this embodiment, there is an effect that stronger structural strength can be obtained as compared with the plate-shaped vertical vortex generators 21 and 22 described in the first and second embodiments. Further, in this embodiment, the longitudinal vortex generator 24 is different from the first to fourth embodiments.
Since the uppermost stream portion B has an edge shape, the fluid resistance to the blown air flow is small, and the vertical vortex generator having a low pressure loss is also obtained. Although the vertical vortex generator 24 is implanted in the present embodiment, it goes without saying that a similar effect can be obtained by adopting a method of integrally forming the nozzle when forming the nozzle.

Embodiment 6 FIG. FIG. 10 is a perspective view showing Embodiment 6 of the present invention. Top surface 10 of blow nozzle
The plurality of vertical vortex generators 24 installed in the nozzle a have a triangular pyramid shape, and one side 24c of a triangle forming a joint bottom surface between the nozzle upper surface 10a and the vertical vortex generator 24 is substantially perpendicular to the flow direction of the blown airflow 11. It is in the direction of intersection, and the above one side 2
4c is implanted so as to be located on the upstream side of the blowing airflow 11 from the other two sides. Also, in this embodiment,
The intersection of the vertical line descending from the vertex A of the triangular pyramid protruding into the blowing airflow to the nozzle upper surface 10a and the nozzle upper surface 10a is located on the downstream side of the blowing airflow 11 from the one side 24c. In this shape and arrangement, the vertical vortex is generated from the hypotenuses 24a, 24b of the triangular surface facing the blowing airflow 11 on the upstream side as shown in FIG. In the present embodiment, the oblique sides 24a and 24b
And the one side 24c as three sides, the triangular surface is inclined in the downstream direction of the blowing airflow with respect to the nozzle upper surface 10a, and the blowing airflow uniformly flows on the inclined triangular surface, and the total length of the hypotenuses 24a, 24b Therefore, a strong vertical vortex similar to that shown in the first embodiment can be generated. In addition, it has sufficient strength due to the polygonal pyramid shape. Further, in the present embodiment, the vertical vortex generator is implanted, but it goes without saying that the same effect can be obtained by adopting a method of integrally forming the nozzle when producing the nozzle.

Although the vertical vortex generator 23 has a triangular pyramid shape in the fifth and sixth embodiments, a similar effect can be obtained by using a polygonal pyramid such as a quadrangular pyramid.

Embodiment 7 FIG. 11 is a perspective view showing Embodiment 7 of the present invention. In the present embodiment, the upper ends of the left and right wind direction deflecting plates 13 provided in parallel in the blowing nozzle for the purpose of guiding the blowing airflow in the left and right direction by the triangular vertical vortex generator 21 described in the first embodiment. And at the distal end position on the downstream side of the blown air flow. According to this embodiment, there is an effect that the vertical vortex generator 21 functions effectively even when the wind direction is deflected left and right by the left and right wind direction deflecting plates 13.

In this embodiment, the vertical vortex generator 21 is used.
Is provided at the upper end of the left and right wind direction deflecting plate 13, but may be provided at the lower end. In addition, the vertical vortex generator 21 is shown as a right-angled triangle, but in addition, the rectangular vertical vortex generator 22, the conical vertical vortex generator 23, or the vertical vortex generator 23 described in the second to sixth embodiments may be used. It goes without saying that the same effect can be obtained even if the longitudinal vortex generator 24 having a triangular pyramid shape is implanted. Further, in the present embodiment, the vertical vortex generator is implanted, but it goes without saying that the same effect can be obtained by adopting a method of integrally forming the nozzle when manufacturing the nozzle.

Embodiment 8 FIG. FIG. 12 is a vertical cross-sectional view of a blow-out nozzle portion showing Embodiment 8 of the present invention. In the present embodiment, a plurality of vertical vortex generators 21 each having the shape of a right triangle described in the first embodiment are joined to the nozzle lower surface 10b along the side of the downstream end of the blown airflow, and the bottom is joined to the nozzle lower surface 10b. It has been planted. As in the first embodiment, the vertical vortex 31 generated from the vertical vortex generator 21 causes exchange of a fluid mass between the high-temperature blowing airflow and the low-temperature ambient air, and the temperature of the blowing airflow decreases. As the influence of buoyancy is reduced, the straightness of the jet is increased vertically downward. In addition, after the blown airflow reaches the floor, the airflow spreads to the surroundings, the wind speed decreases, and the pressure increases toward the downstream. Since vertical vortices are generated at the side boundary, the momentum of the blown air flow is transported very close to the floor due to the effect of the vertical vortex at the lower boundary, so that the boundary layer generated near the floor becomes thin and stable. hardly stirred up occurs in the air flow can be spread stably along the floor. Further, the upper and lower indoor airflows separated by the blown airflow are generally not at a uniform temperature, and the temperature of the indoor air near the upper ceiling surface is high, and the temperature of the indoor air near the lower floor surface is relatively low. There is.
In this case, the force acting on the blown airflow at the same vertical position, besides the buoyancy due to the low density of the jet itself,
Due to the difference in pressure caused by the difference in density between the two fluids separated by the blown airflow, an external force that pushes up the slant further increases the tendency to soar. To prevent this, raise the temperature of the air below the blowing air stream,
It must be at the same level as the temperature of the air near the ceiling.
In this embodiment, the longitudinal vortex generators generate longitudinal vortices along the lower surface of the jet, so that the mixing is promoted on the lower surface of the airflow, and the temperature below the airflow rises faster. Therefore, the temperature of the upper and lower two fluids separated by the airflow becomes rather high on the lower side, and the force acting on the airflow becomes downward, thereby obtaining the effect of promoting the arrival of the airflow to the floor surface.

In the present embodiment, the vertical vortex generator 21
In addition, a rectangular vertical vortex generator 22, a conical vertical vortex generator 23, or a triangular pyramid vertical vortex generator described in the second to sixth embodiments is shown. It goes without saying that the same effect can be obtained even if the body 24 is implanted. Further, in the present embodiment, the vertical vortex generator is implanted, but it goes without saying that the same effect can be obtained by adopting a method of integrally forming the nozzle when producing the nozzle.

Embodiment 9 FIG. 13 is a vertical cross-sectional view of a blow-out nozzle portion showing Embodiment 9 of the present invention. In the present embodiment, the vertical vortex generator 21 of the right-angled triangle described in the first embodiment is provided with the vertical wind direction deflecting plate 1 installed in the blowing nozzle for the purpose of guiding the blowing airflow in the vertical direction.
A plurality of bases are planted on the lower surface of the base 2 so that the base is joined to the lower surface. As in the first embodiment, the vertical vortex 31 generated from the vertical vortex generator 21 causes exchange of a fluid mass between the blown airflow and the surrounding air, and the temperature of the blown airflow is reduced, thereby affecting buoyancy. As a result, the straightness of the jet flowing downward is increased. In addition, the duct formed between the vertical wind deflecting plate 12 and the nozzle lower surface 10b of the blowing nozzle 10 can be throttled downstream by the vertical wind deflecting plate 12, so that the initial wind speed can reach a high value. Since the blown airflow having a long distance can be formed, it is easier to reach the floor surface.

Although the vertical vortex generator 21 is shown as a right-angled triangular, the rectangular vertical vortex generator 22 and the conical vertical vortex generator described in the second to sixth embodiments are also applicable. It is needless to say that the same effect can be obtained even if the vertical vortex generator 24 having a triangular pyramid shape is implanted. Further, in the present embodiment, the vertical vortex generator is implanted, but it goes without saying that the same effect can be obtained by adopting a method of integrally forming the nozzle when producing the nozzle.

Embodiment 10 FIG. FIG. 14 is a vertical cross-sectional view of a blow-out nozzle portion showing Embodiment 10 of the present invention. In the present embodiment, two sets of vertical wind direction deflecting plates 12 for controlling the direction of the blown airflow 11 in the vertical direction are provided, and the vertical vortex generator 21 is provided at the downstream end of the lower surface of the wind direction deflecting plate 12a located on the upper side. Are implanted such that the bottom surface is joined to the lower surface. FIG. 14A shows an operation state at the time of heating, in which the wind direction deflecting plates 12a and 12b are set downward so as to deflect the blown airflow 11 downward. At this time, as shown in the ninth embodiment, the vertical vortex 31 is generated when the blown airflow 11 passes through the vertical vortex generator 21 planted on the wind direction deflecting plate 12a. That is, as with the ninth embodiment, mixing with low-temperature ambient air occurs. On the other hand, FIG. 14B shows an operation state during cooling or blowing, and the wind direction deflecting plate 12a is
The blown airflow 11 is housed in the nozzle upper surface 10a of the blowing nozzle 10 together with the planted vertical vortex generator 21, and the blown airflow 11 is deflected in a substantially horizontal direction by the other wind direction deflecting plate 12b. In the present embodiment, at the time of heating as shown in FIG. 14A, the vertical vortex generator 21 is blown out, moves into the airflow, prevents the airflow from rising, and performs the cooling or air blowing shown in FIG. 14B. When there is no fear of soaring due to buoyancy as in the case of time, and when mixing with ambient air is not necessary, there is a vertical vortex generator 21 which blows out the obstructive vertical vortex generator 21 in order to blow out a jet with little turbulence. By excluding from the position, there is an effect that high performance can be obtained in each mode of heating, cooling and air blowing. Further, by moving the wind direction deflecting plate 12a located on the upper side as shown in FIG. 14 (b), it is possible to prevent the surrounding high-temperature and high-humidity air from being entrained at the time of cooling and from being exposed on the upper side surface of the wind direction deflecting plate 12a. Play.

Embodiment 11 FIG. FIG. 15 shows the first embodiment.
FIG. 2 is a vertical cross-sectional view of a blow-out nozzle portion showing No. 1; A vertical wind direction deflecting plate 12 is provided on the airflow blowing portion of the blowing nozzle 10.
Is provided, and a vertical vortex generator 21 is implanted along a downstream end portion of the nozzle lower surface 10 b of the blowing nozzle 10. FIG. 15A shows an operation state during heating.
The wind direction deflecting plate 12 is set downward so as to deflect the blown airflow downward. At this time, the blown air flow 11 passes through the portion of the vertical vortex generator 21 planted at the downstream end of the nozzle lower surface 10b, generates a vertical vortex, and performs an operation of mixing low-temperature ambient air. In contrast, FIG.
5 (b) shows an operation state at the time of cooling or blowing, in which the inclination of the wind direction deflecting plate 12 is set to be substantially horizontal, and the blowout airflow 11 is deflected in a substantially horizontal direction. At this time, the vertical vortex generator 21 implanted at the downstream end of the nozzle lower surface 10b is at a position deviated from the main flow of the blown airflow 11, and no vertical vortex is generated. Also in the present embodiment, a vertical vortex is generated only at the time of heating, and an airflow with little turbulence can be realized at the time of cooling. Therefore, there is an effect that high performance can be obtained in each mode of heating, cooling, and air blowing.

Embodiment 12 FIG. FIG. 16 and FIG.
FIG. 35 shows a twelfth embodiment. FIG. 16A is a vertical cross-sectional view of the blow-out nozzle portion. A plurality of left and right wind direction deflecting plates 13 provided in the blow-out nozzle 10 are arranged so that the blow-out air flow is one of two sides perpendicular to the flow direction of the blow-out air flow 11. The downstream side has a generally trapezoidal shape such that the dimension increases from the upstream side to the downstream side of the blowout airflow so as to be longer than the upstream side. FIG.
(B) is a view of the plurality of left and right wind direction deflecting plates 13 as viewed from above, and the directions of the plurality of left and right wind direction deflecting plates 13 are set so as to have an angle toward a central position in the longitudinal direction of the nozzle. ing. At this time, the high-temperature blowing airflow 11 is generally blown to the front from the blowing nozzle 10, but when passing through the left and right wind direction deflecting plates 13, the hot air flows 11 from the upper and lower ends on the downstream side of the left and right wind direction deflecting plates 13. Pair of vertical vortices 3
1 is produced and the same effect as in the above-described embodiments is obtained, in which the temperature is lowered by entraining the surrounding low-temperature air. In addition, in the present embodiment, since each of the left and right wind direction deflecting plates 13 has an angle toward the center of the nozzle as described above, as shown in FIGS. 16B and 17A, The vertical vortex is a clockwise vortex on the right side and a counterclockwise vortex on the left side of the front of the blowing nozzle above the left and right wind direction deflecting plate 13 above the left and right wind direction deflecting plate 13.
A counterclockwise vortex is generated on the right side and a clockwise vortex is generated on the left side when viewed from the front of the blowing nozzle. As a result, FIG.
As shown in FIG. 7B, the vortex moves toward the nozzle center toward the downstream due to the inherent motion of the vortex itself, and the vortex generated from the upper end of the deflecting plate moves upward, and moves from the lower end of the deflecting plate. The generated vortex moves downward. With the movement of these series of vertical vortices, the blown airflow 11 itself converges to the center, and changes from a horizontally long jet to a shape close to an axisymmetric jet. As a result, the contact area of the blown airflow 11 with the surrounding air is reduced, the attenuation of the wind speed is suppressed, and the airflow becomes highly straight. Therefore, there is an effect that the blown airflow can reach farther in the room. .

Embodiment 13 FIG. FIG. 18 shows the first embodiment.
3 is a perspective view of the left and right wind direction deflecting plate portion showing the direction of the jet main body by adjusting the strength of the vertical vortex generated from the upper end of the left and right deflecting plate 13 and the strength of the vertical vortex generated from the lower end thereof. Is changed at a position distant from the blowing nozzle. That is, as shown in FIG.
Is divided into two upper and lower guide vanes 14 and a drive mechanism for independently driving each guide vane 14 is provided, so that the guide vanes 14 for the blow air flowing along the left and right wind direction deflecting plate 13 are provided. Of the vertical vortex generated from the downstream end of the guide vane 14 can be changed. For example, by increasing the angle of attack of the lower guide vane and decreasing the angle of attack of the upper guide vane, the strength of the vertical vortex generated from the lower end is made smaller than that of the vertical vortex generated from the upper end. Can be bigger. Accordingly, the vertical vortex near the center of the nozzle has a lower moving speed than the vertical vortex generated from the lower end, so that the blown airflow can be deflected more downward at a position away from the blowout nozzle. This has the effect.

[0050]

As described above, according to the blowout airflow control device according to the first configuration of the present invention, the blowout nozzle is communicated with the end of the air passage formed in the main body, and the surrounding outside air flows from the blowout nozzle. In a device that blows out an air current, the blowing of a nozzle structure that constitutes the blowing nozzle is performed.
Downstream of the outlet airflow, one projecting into the outlet airflow
Provides a plurality of three-dimensional structures, and blows from the three-dimensional structures.
The axis of the vortex moves toward the downstream side of the
Generates a vertical vortex in the same direction as the flow of the current,
More ambient air into the airflow blown into the outside air
As a result , the blowing airflow mixes with the surrounding air immediately after the blowing, and the temperature difference between the temperature of the blowing airflow and the ambient temperature can be reduced, so that a comfortable environment with a small temperature difference can be provided. Particularly during heating, the blown air flow mixes with the surrounding relatively low-temperature air immediately after blowing, and the temperature of the blown air flow can be reduced, so that the influence of buoyancy can be reduced, and as a result, the fan power becomes excessive. Without taking a method of increasing the blowing speed, and without reducing the heating capacity, it is possible to reach a warm air flow to the floor surface, and the interior can be uniformly heated, so that the comfort can be greatly improved.

[0051]

Further, according to the blowout airflow control device according to the second configuration of the present invention, the three-dimensional structure is constituted by a triangular or rectangular plate whose one side is in contact with the blowout nozzle structure. The one side in contact with the structure is
Since an angle is formed with respect to the flow direction of the blown airflow, a vertical vortex can be generated with a simple shape.

[0053]

[0054]

[0055]

[0056]

[0057] Further, according to the blow-out air flow control device according to a third aspect of the present invention, in the three-dimensional structure, from the nozzle structure member surface blowout contact with the three-dimensional structure to the projecting distal portion of the three-dimensional structure Since the dimension h is set to be approximately 1/20 to 1/3 of the width W of the blowing nozzle in the direction in which the three-dimensional structure projects, the mixing amount of the blowing airflow and the surrounding air increases, especially during heating. The degree of decrease in the temperature of the blown airflow due to the mixing of the high-temperature blown airflow and the low-temperature ambient air is large, so that the curling of the airflow is effectively suppressed, and the pressure loss is small and the increase in the power of the blower can be minimized. .

[0058]

Further, according to the blow-out air flow control device according to a fourth aspect of the present invention, the three-dimensional structure, since it is configured in conical or elliptical cone shape in contact with the nozzle structure balloon bottom surface, of the second Like the configuration, it is possible to generate a vertical vortex with a simple shape. Further, there is an effect that a structurally higher strength can be obtained as compared with a plate-shaped vertical vortex generator.

[0060]

According to the blowout airflow control device according to the fifth configuration of the present invention, the three-dimensional structure is formed in a polygonal pyramid shape whose bottom surface is in contact with the blowout nozzle structure.
As in the case of the configuration of No. 4 , it is possible to generate a vertical vortex with a simple shape, and it is possible to obtain an effect that a high strength can be obtained structurally.

[0062]

[0063]

[0064]

Further, according to the blowout airflow control device according to the sixth aspect of the present invention, the three-dimensional structure is implanted or integrally provided on the inner wall surface below the blowout nozzle. Since the airflow after reaching the floor is less likely to separate from the floor, the reach of the airflow increases. Also, of the two fluids having a temperature difference between the upper and lower parts of the room separated by the blown airflow, the lower airflow is more promoted to mix with the blown airflow, so that the temperature of the lower fluid rises and the blown airflow is increased. Since the temperature difference between the upper and lower sides becomes smaller, the upward external force acting on the blown air flow is reduced, so that the effect of suppressing the rising can be achieved.

Further, according to the blowout airflow control device according to the seventh aspect of the present invention, the three-dimensional structure is formed by moving at least one of the left and right airflow deflecting plates, which guide the blowout airflow in the left-right direction, on the downstream side of the blowout airflow. The vertical vortex generator and the blown air flow maintain an appropriate angle of attack even when the left and right directions of the blown air flow change, resulting in a stable strong vertical vortex. The effect is that it can be done.

Further, according to the blowout airflow control device according to the eighth aspect of the present invention, the three-dimensional structure is implanted or provided integrally with the vertical wind direction deflection plate for guiding the blowout airflow in the vertical direction. As with the first configuration, the blown airflow mixes with the surrounding air immediately after the blowout, and a comfortable environment with a small temperature difference can be provided. Furthermore, by using a configuration in which the blowout airflow can be throttled downstream by the vertical wind direction deflection plate, a blowout airflow having a high initial wind speed and a long reach can be formed, and it is easier to reach the floor surface.

Further, according to the blowout airflow control device according to the ninth configuration of the present invention, when the blowout airflow temperature is lower than or equal to the ambient air, the three-dimensional structure does not interfere with the blowout airflow. As a result, there is an effect of preventing the soaring only at the time of heating, and an effect of obtaining a stable blown airflow with small turbulence at the time of cooling and blowing.

Further, according to the blowout airflow control device according to the tenth configuration of the present invention, the shape of the left and right wind direction deflectors for guiding the blowout airflow in the left and right direction is determined by whether the airflow is upstream of the blown airflow.
Since the shape of the trapezoid is generally trapezoidal so that the size increases from downstream to downstream, vertical vortices are generated from above and below the wind direction deflecting plate, and mixing of the blown airflow and the surrounding air is promoted.

Further, according to the blowout airflow control device according to the eleventh structure of the present invention, the airflow deflecting plate that guides the blowout airflow in the left-right direction can be independently driven in the left-right direction on the downstream side of the blowout airflow. Since at least two possible guide vanes are connected, and a vertical vortex is generated in the guide wing with respect to the blown airflow, it is possible to easily realize a state in which the velocity of the inherent motion of the vertical vortex differs vertically. It is possible to change the angle of the air flow at a distance.

[Brief description of the drawings]

FIG. 1 is a front view and a longitudinal sectional view showing a blown airflow control device according to a first embodiment of the present invention.

FIG. 2 is a partial perspective view and a partial plan view showing a blown airflow control device according to Embodiment 1 of the present invention.

FIG. 3 is a partial perspective view of the triangular three-dimensional structure according to the first embodiment of the present invention as viewed from below.

FIG. 4 is an explanatory diagram illustrating dimensions of the three-dimensional structure according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram illustrating an arrangement of a three-dimensional structure according to the first embodiment of the present invention.

FIG. 6 is a perspective view showing a rectangular three-dimensional structure according to a second embodiment of the present invention.

FIG. 7 is a perspective view showing a conical three-dimensional structure according to a third embodiment of the present invention.

FIG. 8 is a perspective view showing a three-dimensional structure according to a fourth embodiment of the present invention.

FIG. 9 is a perspective view showing a triangular pyramid-shaped three-dimensional structure according to a fifth embodiment of the present invention.

FIG. 10 is a perspective view showing a triangular pyramid-shaped three-dimensional structure according to a sixth embodiment of the present invention.

FIG. 11 is a perspective view showing a left and right wind direction deflecting plate according to Embodiment 7 of the present invention.

FIG. 12 is a longitudinal sectional view showing a blowing nozzle portion according to Embodiment 8 of the present invention.

FIG. 13 is a longitudinal sectional view showing a blow-out nozzle portion according to Embodiment 9 of the present invention.

FIG. 14 is a longitudinal sectional view showing a blow-out nozzle portion according to Embodiment 10 of the present invention.

FIG. 15 is a longitudinal sectional view showing a blowing nozzle portion according to an eleventh embodiment of the present invention.

FIG. 16 is a longitudinal sectional view and an explanatory view showing the configuration and operation of a left and right wind direction deflecting plate according to Embodiment 12 of the present invention.

FIG. 17 is an explanatory diagram showing the operation of the left and right wind direction deflecting plates according to Embodiment 12 of the present invention.

FIG. 18 is a perspective view showing a left and right wind direction deflecting plate according to Embodiment 13 of the present invention.

FIG. 19 is a longitudinal sectional view showing an indoor unit of a conventional air conditioner.

[Explanation of symbols]

1 heat exchanger, 2 blower, 10 blow nozzle, 1
0a Nozzle upper surface, 10b Nozzle lower surface, 11 blow-off airflow, 12 vertical wind deflecting plate, 12a upper vertical wind deflecting plate, 12b lower vertical wind deflecting plate, 13 horizontal wind deflecting plate, 14 guide wing, 21 triangular vertical Vortex generator, 22 rectangular vertical vortex generator, 23 conical vertical vortex generator, 23a semi-conical vertical vortex generator, 24 triangular pyramidal vertical vortex generator, 31 vertical vortex.

──────────────────────────────────────────────────続 き Continued on the front page (72) Katsuhisa Oota, 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation (72) Inventor Takayuki Yoshida 2-3-2, Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Inside Electric Co., Ltd. (72) Inventor Eriko Kumekawa 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation (72) Inventor Sakuo Sugawara 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation (72) Inventor Tatsuo Seki 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Co., Ltd. (56) Reference: Japanese Utility Model Application Hei 5-19845 (JP, U) Japanese Utility Model Application No. Sho 61-141655 (JP, U) ) Japanese Utility Model Application Hei 2-28039 (JP, U) Japanese Utility Model Application Showa 61-145248 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 13/08

Claims (11)

(57) [Claims] 1. A communicates the nozzle balloon at the end of the air passage formed in the body, from the balloon using a nozzle blowout airflow control device odor <br/> then blowing a stream into the surrounding ambient air, forming the blowout nozzle Nozzle structure blowing
Downstream of the outlet airflow, one projecting into the outlet airflow
Provides a plurality of three-dimensional structures, and blows from the three-dimensional structures.
The axis of the vortex moves toward the downstream side of the
Generates a vertical vortex in the same direction as the flow of the current,
More ambient air into the airflow blown into the outside air
Balloon airflow control device characterized by being useless. 2. A three-dimensional structure, one side of which is a blowing nozzle
Triangular or rectangular plate in contact with the structure
The one side in contact with the discharge nozzle structure is
A contractor characterized by having an angle to the flow direction.
The blowout airflow control device according to claim 1. 3. The three-dimensional structure is connected to the three-dimensional structure.
Of the three-dimensional structure from the surface of the blowing nozzle structure
The dimension h up to the protruding tip portion is such that the three-dimensional structure protrudes.
About 1/20 times the width W of the blowing nozzle in the direction
The blowing according to claim 1, characterized in that it is 1/3 times as large as the above.
Air flow control device. 4. A three-dimensional structure, wherein the bottom surface is a blowing nozzle.
The shape must be conical or elliptical cone in contact with the structure
The blow-off airflow control device according to claim 1, wherein: 5. A three-dimensional structure, wherein the bottom surface is a blowing nozzle.
Claims characterized by a polygonal pyramid shape in contact with the structure
Item 2. A blowout airflow control device according to Item 1. 6. A three-dimensional structure is provided below a blow nozzle.
It is planted or integrated on the inner wall of
The blowout airflow control device according to claim 1, wherein 7. An air outlet at an end of an air passage formed in the main body.
Nozzle and communicate with the surrounding air
Air flow control device that blows air flow inside
And provided on the nozzle structure constituting the above-mentioned blowing nozzle.
Left and right wind direction deflector plate that guides the blown air flow in the left and right direction
Of at least one of the upper and lower ends on the downstream side of the blowing airflow
And one or more of the
The three-dimensional structure body is provided, the gas blow-out from the three-dimensional structure
The axis of the vortex moves toward the downstream side of the stream
A vertical vortex is generated in the same direction as
To take in ambient air into the airflow blown out into the air
A blowout airflow control device, characterized in that: 8. A blow-out at an end of an air passage formed in the main body.
Nozzle and communicate with the surrounding air
Air flow control device that blows air flow inside
And provided on the nozzle structure constituting the above-mentioned blowing nozzle.
Vertical deflecting plate that guides the blown air flow in the vertical direction
And one or more of the three
A three-dimensional structure is provided, and air flow blows out from the three-dimensional structure.
Toward the downstream side, the axis of the vortex is
A vertical vortex is generated in the same direction.
So that ambient air can be taken into the air stream
A blowout airflow control device, characterized in that: 9. The blown air temperature is lower than the ambient air.
Or equivalent, blow out the three-dimensional structure
Claim 1 or Claim 2 wherein it does not interfere with
Is a blowout airflow control device according to 8. 10. Blowing to the end of an air passage formed in a main body.
Communication with the discharge nozzle, and
In the blowout airflow control device that blows out the airflow into the air
And provided on the nozzle structure constituting the above-mentioned blowing nozzle.
Left and right wind direction deflector plate that guides the blown air flow in the left and right direction
From the upstream to the downstream of the blown air flow.
The shape is generally trapezoidal so that the
On the downstream side of the airflow from the facing plate, the axis of the vortex
A vertical vortex is generated in the same direction as the airflow,
Traps ambient air into the airflow blown into the outside air.
Blowout airflow control device characterized in that
Place. 11. Blowing to the end of an air passage formed in the main body.
Communication with the discharge nozzle, and
In the blowout airflow control device that blows out the airflow into the air
And provided on the nozzle structure constituting the above-mentioned blowing nozzle.
Left and right wind direction deflector plate that guides the blown air flow in the left and right direction
Left and right independently on the downstream side of the airflow
At least two guide vanes that can be driven to the
On the downstream side of the airflow from the guide wing, the axis of the vortex
Generates a vertical vortex in the same direction as the airflow,
Vortex traps ambient air into the airflow blown into the outside air.
Blow-out airflow control device characterized in that
Place.