WO2016147429A1

WO2016147429A1 - Wind direction plate

Info

Publication number: WO2016147429A1
Application number: PCT/JP2015/071590
Authority: WO
Inventors: 佐々木　伸夫
Original assignee: シャープ株式会社
Priority date: 2015-03-17
Filing date: 2015-07-30
Publication date: 2016-09-22
Also published as: CN106537055B; JP6581182B2; CN106537055A; JPWO2016147429A1

Abstract

The purpose of the invention is to allow an air current striking a wind direction plate to be clearly divided toward an inclined direction to the right and left in the front and to achieve this with little pressure loss using only the structure of the wind direction plate. A wind direction plate 20 is disposed on an outlet 17 of an air purifier 1. The wind direction plate 20 changes the direction that air is blown by a wind direction changing face 21 on one side interfering with the air current. The wind direction changing face 21 is provided with two air guiding faces 22 to guide the air current from near the center of the upstream side toward one and the other of two corners on the downstream side.

Description

Wind direction board

This invention relates to the wind direction board arrange | positioned at the blower outlet of the apparatus which has the function to blow off air, such as an air cleaner and an air conditioner.

In a device having a function of blowing out air, such as an air purifier or an air conditioner, it is generally performed so that air is blown out in a desired direction by disposing a wind direction plate at the outlet. Examples of such devices can be found in US Pat.

Patent Document 1 describes a flap of an air conditioner. In this flap, the curvature in the width direction at the center in the longitudinal direction is larger than the curvature in the width direction at the end in the longitudinal direction. With this configuration, “when the curvature in the width direction at the central portion in the longitudinal direction is increased, the wind direction adjustment capability is increased and good air flow control can be realized. At this time, the curvature in the width direction at the end portion in the longitudinal direction is Since it is smaller than the curvature in the width direction at the center in the longitudinal direction, no separation of the airflow occurs, and the end in the longitudinal direction is covered with blown air. The air is not caught in the cold air and does not come into contact with the end portion in the longitudinal direction, and the occurrence of dew condensation at the end portion in the longitudinal direction can be prevented (paragraph [0007]).

Patent Document 2 describes a louver for an air conditioner. In this louver, the cross-sectional shape perpendicular to the longitudinal direction in the central region in the longitudinal direction is an arc, and the cross-sectional shape perpendicular to the longitudinal direction in the outer region is an arc and a straight line. With this configuration, the air-conditioned air flows into the room at different blowing angles in the outer region and the central region in the longitudinal direction of the louver, so that the air-conditioned air can be distributed evenly over a wider area in the room. Interfering with the flow of air-conditioned air from different angles can expedite the spread of air-conditioned air that blows into the room, resulting in rapid distribution of the air-conditioned air evenly over a wide area in the room. Is possible ”(paragraph [0007]).

Patent Document 3 describes an air conditioner. The wind direction control plate attached to the outlet of this air conditioner is composed of a long plate material that is curved over the entire width direction, and one end edge along the longitudinal direction is linear, while the other end edge is It has a shape in which the degree of curvature at the center is lower than that on both sides. Air is blown out from the other end edge of the wind direction control plate toward the one end edge. With this configuration, an effect is obtained that “the air directions of the conditioned air blown from one end edge along the longitudinal direction are all equal and the wind speed distribution is substantially uniform” (paragraph [0009]).

Patent Document 4 describes a louver. The louvers are arranged on both sides of the first air conditioning surface in a plane parallel to the air blowing direction, and in a plane parallel to the first air conditioning surface, and the first air conditioning via the step surfaces. Each step surface between the first air conditioning surface and the second air conditioning surface from the air blowing source side toward the air blowing destination. They are formed in a planar arc shape in which the distance between them gradually increases, and the thicknesses of the first and second air conditioning surfaces are substantially uniform, and the back surface of the first air conditioning surface and the surface of the second air conditioning surface are substantially the same. It has the shape of being arranged on the same plane. With this configuration, “the stepped surface functions as a horizontal louver or vertical louver, so even if the horizontal louver or vertical louver is omitted, the ventilation elevation angle and the ventilation swing angle can be changed, and the total number of louvers required can be reduced.” (Paragraph [0015]), “Since the step surface is in a plane arc shape (arc shape in plan view), the blowing direction of the temperature-controlled air can be changed smoothly as compared with the step surface formed in a flat plate shape, turbulence, etc. ”(Paragraph [0016]),“ the thickness of the first air conditioning surface and the second air conditioning surface is substantially uniform, the back surface of the first air conditioning surface and the second air conditioning surface Since the surface is substantially flush with the surface, an appearance similar to a flat louver is obtained, and the louver has a step between the first and second conditioned surfaces. Because the surface is only provided Effect is brought about that no need complicated molds and a large amount of the material shape in the production "(paragraph [0017]).

Patent Document 5 describes a ceiling-embedded air conditioner. The louver that controls the wind direction with this air conditioner is gradually inclined downward from the central portion toward both longitudinal ends. With this configuration, the blowing airflow from both ends of the louver is guided below the blowing airflow from the central part of the louver. As a result, sticking of the air-conditioned airflow to the ceiling surface can be suppressed, and problems such as dust adhering to the ceiling surface or mold becoming dirty can be prevented. ”“ Horizontal direction from the center of the louver. Since the blown airflow can be maintained, the indoor space can be uniformly cooled while maintaining the reachability of the air, and the cold air can be prevented from directly hitting a person and the comfort and the air conditioning effect can be maintained. [0007]] effect.

Patent Document 6 describes an air conditioner. The louver disposed at the air outlet of this air conditioner has an end control surface at the end and an intermediate control surface at the intermediate portion, and the air flow controlled by the end control surface is higher than that of the intermediate control surface. Alternatively, the airflow is controlled downward. With this configuration, “the air flow controlled by the end control surface controls the air flow above or below that of the intermediate control surface, and the difference in the horizontal or vertical component force of the air flow vector is increased so that “Involvement in a certain return airflow can be reduced and short circuit can be reduced” (paragraph [0008]).

Patent Document 7 describes an indoor unit of an air conditioner equipped with a left / right airflow direction adjusting device.

Japanese Patent No. 3622690 Japanese Patent No. 3820182 Japanese Patent No. 4519811 Japanese Patent No. 3520882 JP 2002-323254 A Japanese Patent Laid-Open No. 2001-4198 Japanese Patent No. 5404713

∙ There is a case where a wind direction plate is inclined at the air outlet of a device having a function of blowing out air and the air flow is changed to the front side by the wind direction changing surface. At this time, the air flow changes its direction toward the front and blows out in the right lateral direction from the opening next to the wind direction plate, but does not divert toward the front left and right diagonal directions. However, there are cases in which it is desired to divide the air flow toward the front left and right diagonal directions and diffuse ions to every corner of the room. The function of clearly dividing the airflow hitting the wind direction plate toward the front left and right diagonal directions cannot be obtained with the wind direction plates described in Patent Documents 1 to 6. For example, if the left and right wind direction adjusting device described in Patent Document 7 is arranged in front of the wind direction plate that attracts the air flow toward the front and the air blowing direction is swung in the left and right oblique directions, the object is generally achieved. This complicates the configuration. Moreover, such a left-right wind direction plate becomes a pressure loss, and an air volume falls. In addition, since the air flow is difficult to flow on the leeward side of such a left and right wind direction plate, it becomes an obstacle to uniform ion concentration, for example, when ions are included in the air flow to diffuse ions into the room.

The present invention has been made in view of the above points, and it is possible to clearly separate the air flow that hits the wind direction plate toward the front left and right diagonal directions, and to provide a separate wind direction adjustment device. The goal is to achieve it regardless of the method of combination.

The wind direction plate according to the present invention is disposed at an air outlet of a device having a function of blowing out air, and changes the air blowing direction by interfering the air direction changing surface on one side with the air flow. Is characterized in that two air guiding surfaces are formed for guiding the air flow from the center on the leeward side toward one of both corners on the leeward side.

In the wind direction plate having the above configuration, the air guide surface is preferably a curved surface.

In the wind direction plate having the above-described configuration, it is preferable that the air guide surface is formed to have a part of a spherical concave portion.

In the wind direction plate having the above-described configuration, it is preferable that the air guide surface toward one of the two corners and the air guide surface toward the other are asymmetrical.

In the wind direction plate having the above configuration, it is preferable that the surface opposite to the wind direction changing surface is a flat surface.

According to the present invention, the air direction change surface of the wind direction plate is formed with the two air guide surfaces that guide the air flow from the center of the windward side toward one of the corners on the leeward side. It is possible to effectively divert the air flow that hits the head toward the left and right diagonal directions with little pressure loss. Moreover, this function is brought about only by the structure of the wind direction plate, and it is not necessary to combine other members, and the structure becomes simple.

It is a front view of an air cleaner. It is a vertical sectional view of the air cleaner of FIG. FIG. 2 is a vertical sectional view of the air cleaner of FIG. 1 cut along the line AA. It is the 1st front view explaining the fundamental technical idea of the wind direction board concerning the present invention. It is a 2nd front view explaining the basic technical idea of the wind direction board which concerns on this invention. It is the 1st explanatory view showing the situation where the wind direction board concerning the present invention is arranged in a blower outlet. It is the 2nd explanatory view showing the situation where the wind direction board concerning the present invention is arranged in a blower outlet. It is a perspective view which shows 1st Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 2nd Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 3rd Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 4th Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 5th Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 6th Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 7th Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 8th Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 9th Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 10th Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 11th Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 12th Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 13th Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 14th Embodiment of the wind direction board which concerns on this invention. It is a vertical sectional view of an air cleaner showing a 15th embodiment of a wind direction board concerning the present invention. It is a perspective view which shows 16th Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 17th Embodiment of the wind direction board which concerns on this invention. It is a perspective view which shows 18th Embodiment of the wind direction board which concerns on this invention.

1 to 3 are air purifiers as an example of equipment having a function of blowing out air. The air purifier 1 includes a thin box-shaped casing 10 having a frontal shape of a rounded square and a small depth in front and rear as compared with the vertical and horizontal dimensions. An intake port 11 (see FIG. 3) formed of a collection of many small holes is formed on the back surface of the housing 10, and a filter chamber 12 is defined inside the intake port 11. A filter 13 for collecting dust is stored in the filter chamber 12. A fan casing 14 is formed between the filter chamber 12 and the front surface of the housing 10. The fan casing 14 includes a spiral air flow path portion that receives the air discharged from the fan and guides it toward the outlet. The spiral air flow path portion has an involute shape whose cross-sectional area gradually increases toward the downstream side.

The inside of the filter chamber 12 and the inside of the fan casing 14 are communicated with each other through a communication port 15 (see FIG. 2) made up of a large number of small holes. A sirocco fan 16 (see FIG. 3) is disposed inside the fan casing 14. The sirocco fan 16 rotates counterclockwise in the fan casing 14 in FIG. The end of the fan casing 14 is a blowout port 17. The blower outlet 17 is opened in the top | upper surface of the housing | casing 10, The planar shape is a rectangle whose dimension of the left-right direction is longer than the dimension of the depth direction.

When the sirocco fan 16 is rotated by a motor (not shown), room air is sucked into the filter chamber 12 from the intake port 11. The sucked air passes through the filter 13, and dust in the air is collected by the filter 13. The air purified by passing through the filter 13 enters the fan casing 14 through the communication port 15 and is sucked into the sirocco fan 16. The air sucked into the sirocco fan 16 is discharged from the outer periphery of the sirocco fan 16, turns inside the fan casing 14, and is blown upward from the air outlet 17.

A wind direction plate 20 is disposed at the outlet 17. The wind direction plate 20 has a long rectangle in the left-right direction. The wind direction plate 20 causes the air direction changing surface 21 on one side to interfere with the air flow blown out from the air outlet 17 to change the air blowing direction. In the air cleaner 1, the wind direction plate 20 changes the air blowing direction toward the front by the wind direction changing surface 21. The shape of the wind direction changing surface 21 of the wind direction plate 20 is the eye of the present invention, which will be described later with some embodiments.

The wind direction plate 20 is attached to the air outlet 17 so as to be able to rotate in a vertical plane with the rear end as the center of rotation, and is held in one of the following two postures by a motor (not shown). The first posture is a posture in which the air blowing direction is changed by the wind direction changing surface 21, and this is shown in FIGS. 1 to 3. A 2nd attitude | position is an attitude | position which closes the blower outlet 17. FIG. The surface opposite to the wind direction changing surface 21 of the wind direction plate 20 is a flat surface, and this flat surface is flush with the top surface of the housing 10 when the wind direction plate 20 closes the outlet 17.

By the way, the air flow blown out from the blowout port 17 usually changes the direction toward the front by the wind direction changing surface 21 and blows out from the side opening of the wind direction plate 20 in the right lateral direction, but does not blow out toward the front left and right diagonal direction. . When an ion generator is mounted on the air cleaner 1 and the ions generated by this ion generator are included in the air flow, if the width of the air flow near the front is narrow, the ion concentration in the room is biased. Cheap. If the air blowing direction is swung in the left-right oblique direction using the left / right airflow direction adjusting device as described in Patent Document 7, the deviation of the ion concentration can be reduced, but this makes the configuration complicated.

Accordingly, in the present invention, even when the air flow is clearly divided into the front left and right diagonal directions only by the shape of the wind direction changing surface 21 of the wind direction plate 20, even when the air flow containing ions is blown out, the ion concentration in the room is biased. Prevent it from occurring. The basic concept of how the wind direction changing surface 21 is formed in order to achieve this object will be described with reference to FIGS.

The basic technical idea of the present invention is as follows. That is, two air guiding surfaces 22 are formed on the wind direction changing surface 21 to guide the air flow from the center on the windward side toward one of both corners on the leeward side. The air guide surface 22 in FIG. 4 has a size that covers about half of the region from the windward side to the leeward side of the wind direction changing surface 21. The air guide surface 22 in FIG. 5 has a size covering almost the entire region from the windward side to the leeward side of the wind direction changing surface 21. The left and right air guide surfaces 22 are symmetrical.

Due to the presence of the air guide surface 22, a certain portion of the air flow blown to the wind direction changing surface 21 is diverted into the direction of the upper left corner of the figure and the direction of the upper right corner of the figure. Become. The air direction changing surface 21 in FIG. 5 performs the diversion more effectively than the air direction changing surface 21 in FIG.

FIG. 6 shows an image in which the wind direction plate 20 having substantially the same structure as the wind direction plate 20 in FIG. The wind direction plate 20 is arrange | positioned on the outer side of the blower outlet 17, and makes the wind direction change surface 21 interfere with an air flow. The direction of the air flow blown upward from the blowout port 17 is changed to the front side by the wind direction changing surface 21 being inclined forward. At the same time, a certain proportion of the air flow is diverted toward the front left and right diagonal directions by the two air guide surfaces 22.

FIG. 7 also shows a state in which the wind direction plate 20 is arranged at the outlet 17. The wind direction plate 20 is arranged not inside the air outlet 17 but inside the air outlet 17. The wind direction plate 20 rotates in the vertical plane with the rear end as the center of rotation, similarly to the wind direction plate 20 of the air cleaner 1 shown in FIGS. 1 to 3. The air guide surface 22 is formed by forming a curved concave portion on the wind direction changing surface 21, and its ridge line portion is not a sharp ridge line like the wind direction plate 20 of FIG. 6 but a rounded ridge line.

When the wind direction plate 20 in FIG. 7 is raised from a posture in which the blower outlet 17 is closed by a motor (not shown), the blower outlet 17 is opened and the wind direction plate 20 is in a posture in which the wind direction changing surface 21 faces obliquely downward. As the wind direction changing surface 21 faces obliquely downward, the direction of the air flow blown out from the air outlet 17 can be changed to the front side. Further, the air flow is diverted in a certain proportion toward the front left and right diagonal directions by the two air guide surfaces 22.

The wind direction plate 20 of FIG. 6 is the same, but the wind direction plate 20 of FIG. 7 has a flat surface opposite to the wind direction changing surface 21, and when the wind direction plate 20 is in a position to close the outlet 17, The portion is flush with the top surface of the housing 10. Thereby, it becomes easy to clean the air cleaner 1. The wind direction plate 20 does not stand out.

The configuration in which the wind direction changing surface 21 has an undulating shape and the opposite surface is a flat surface can be realized by combining two molded parts of synthetic resin. If comprised in this way, a cavity will arise in the inside of the wind direction board 20. FIG. Since the air layer inside the cavity plays a role of a sound absorbing material, noise diffusion upward of the air cleaner 1 can be reduced.

When the airflow direction plate 20 of FIG. 7 is in the posture of opening the air outlet 17, the rear end portion that is the center of rotation remains inside the air outlet 17, but the entire airflow direction plate 20 including the rear end portion is It can also be set as the structure lifted above the blower outlet 17. FIG. This configuration can be realized by devising the structure of a hinge portion that connects the housing 10 and the wind direction plate 20.

The wind direction plate 20 may not be openable / closable. It may remain fixed at the angle of FIG. 6 or FIG.

The location of the wind direction plate 20 is not limited to the outlet opening in the top of the device. When a blower outlet is provided on a surface other than the top surface of the device, for example, a side surface, it can be disposed there.

Subsequently, an embodiment of the wind direction plate 20 in which the structure of the wind direction changing surface 21 is variously changed will be described with reference to FIGS. 8 to 23.

<First Embodiment>
FIG. 8 shows the first embodiment. The wind direction changing surface 21 according to the first embodiment is formed on one side of a flat wind direction plate 20. The wind direction changing surface 21 is formed with two air guiding surfaces 22 for guiding an air flow toward one of the two corners on the leeward side. The air guide surface 22 starts from a position near the center of the windward end of the flat plate portion of the wind direction plate 20 and ends at the end of the portion raised from the flat plate portion of the wind direction plate 20 in a trapezoidal cross section. The raised portion has a shape in which the height is zero at the windward end of the wind direction plate 20 and the height increases toward the leeward side. The ridgeline of the air guide surface 22 is sharpened. A rectilinear surface 23 is formed between the air guide surfaces 22 and 22 so that the air flow advances straight without biasing the air flow leftward or rightward. Both the air guide surface 22 and the rectilinear surface 23 are flat surfaces. The left and right air guide surfaces 22 are symmetrical.

Second Embodiment
FIG. 9 shows a second embodiment. The wind direction changing surface 21 according to the second embodiment basically follows the shape of the first embodiment, except for the following points. In other words, the height of the windward end of the portion of the wind direction plate 20 that rises in a trapezoidal cross section is zero in the first embodiment, but in the second embodiment, the height is already at a predetermined height from the windward end. It is raised. The left and right air guide surfaces 22 are symmetrical.

<Third Embodiment>
FIG. 10 shows a third embodiment. The wind direction changing surface 21 according to the third embodiment basically follows the shape of the first embodiment, except for the following points. That is, the ridge line portion of the air guide surface 22 is not a sharp ridge line but a rounded ridge line. The air guide surface 22 is basically a flat surface, and is connected to the flat plate portion by a shallow groove having an arcuate cross-sectional shape that is carved to increase in depth toward the leeward side of the flat plate portion of the wind direction plate 20. An end on the leeward side of the portion of the wind direction plate 20 that is raised in a trapezoidal cross section from the flat plate portion is an end on the leeward side of the air guide surface 22. This raised portion is shaped such that the height is zero at the windward end of the wind direction plate 20 and the height increases toward the leeward side. The left and right air guide surfaces 22 are symmetrical.

<Fourth embodiment>
FIG. 11 shows a fourth embodiment. The wind direction changing surface 21 according to the fourth embodiment basically follows the shape of the first embodiment, except for the following points. That is, the flat plate portion of the wind direction plate 20 has a thickness (L1 <L2) as compared to the first embodiment, and the groove portion extends from the position near the center of the windward end toward one of the corners on the leeward side. A planar air guide surface 22 is formed so as to engrave a groove having a triangular cross-section in the direction perpendicular to the axial direction. The axial direction of the groove is inclined with respect to the longitudinal direction of the wind direction plate 20. The left and right air guide surfaces 22 are symmetrical.

<Fifth Embodiment>
FIG. 12 shows a fifth embodiment. The wind direction changing surface 21 according to the fifth embodiment basically follows the shape of the first embodiment, except for the following points. That is, the ridge line portion of the air guide surface 22 is not a sharp ridge line but a rounded ridge line. The air guide surface 22 is basically a flat surface and is connected to the flat plate portion by a shallow groove having an arcuate cross section carved into the flat plate portion of the wind direction plate 20. The axial direction of the groove is inclined with respect to the longitudinal direction of the wind direction plate 20. The windward end and the leeward end of the portion of the wind direction plate 20 that is raised in a trapezoidal cross-section form the windward end and the leeward end of the air guide surface 22. The left and right air guide surfaces 22 are symmetrical.

<Sixth Embodiment>
FIG. 13 shows a sixth embodiment. The wind direction changing surface 21 according to the sixth embodiment basically follows the shape of the first embodiment, except for the following points. That is, the ridge line portion of the air guide surface 22 is not a sharp ridge line but a rounded ridge line. The air guide surface 22 is basically a flat surface and is connected to the flat plate portion by a shallow groove having an arcuate cross section carved into the flat plate portion of the wind direction plate 20. The axial direction of the groove is inclined with respect to the longitudinal direction of the wind direction plate 20. The groove has a depth of zero at the windward end of the wind direction plate 20 and increases in width and depth toward the leeward side. The flat plate portion of the wind direction plate 20 has a thickness (L1 <L3) as compared with the first embodiment, and thus a groove having such a shape can be formed. The left and right air guide surfaces 22 are symmetrical.

<Seventh embodiment>
FIG. 14 shows a seventh embodiment. In the wind direction changing surface 21 according to the seventh embodiment, the air guiding surface 22 is a curved concave surface, and the ridge line portion of the air guiding surface is not a sharp ridge line but a rounded ridge line. The curved surface of the air guide surface 22 is formed as follows.

A dent that is a part of a spherical surface is formed from the center of the windward end of the flat plate portion of the wind direction plate 20 toward one of the corners on the leeward side. The spherical surface in FIG. 14 is an elliptical spherical surface. The major axis direction of the elliptical spherical surface is inclined with respect to the longitudinal direction of the wind direction plate 20. The left and right air guide surfaces 22 are symmetrical. The rectilinear surface 23 is not a flat surface but also a curved surface like a wave return of a breakwater.

When the air guide surface 22 is a curved concave surface, pressure loss is reduced. Wind direction control is also easy. If a dent that is a part of a spherical surface is formed in the air guide surface 22, it is possible to suppress the generation of an air flow that escapes to the side, and to concentrate the air flow in a predetermined direction closer to the front left-right diagonal direction.

7 is also formed in the same manner as in the seventh embodiment.

<Eighth Embodiment>
FIG. 15 shows an eighth embodiment. The wind direction changing surface 21 according to the eighth embodiment basically follows the shape of the seventh embodiment, except for the following points. That is, a recess that is a part of an elliptical spherical surface is dug into the flat plate portion of the wind direction plate 20 as a groove more clearly than in the seventh embodiment, and the air guide surface from the center near the windward end of the wind direction changing surface 21. 22 stands up. The left and right air guide surfaces 22 are symmetrical. The rectilinear surface 23 is not a flat surface but a curved surface like a wave return of a breakwater.

<Ninth Embodiment>
FIG. 16 shows a ninth embodiment. The wind direction changing surface 21 according to the ninth embodiment basically follows the shape of the seventh embodiment, except for the following points. That is, the dent which is a part of the ellipsoidal spherical surface starts from a position closer to the leeward side than the windward end in the flat plate portion of the wind direction plate 20. The left and right air guide surfaces 22 are symmetrical. The rectilinear surface 23 is not a flat surface but a curved surface like a wave return of a breakwater.

<Tenth Embodiment>
FIG. 17 shows a tenth embodiment. The wind direction changing surface 21 according to the tenth embodiment basically follows the shape of the seventh embodiment, except for the following points. That is, it is formed so that the width and depth of the dent, which is a part of the spherical surface, increase from the center of the raised windward end toward the leeward side. The left and right air guide surfaces 22 are symmetrical. The rectilinear surface 23 is not a flat surface but a curved surface like a wave return of a breakwater.

<Eleventh embodiment>
FIG. 18 shows an eleventh embodiment. In the wind direction changing surface 21 according to the eleventh embodiment, the air guide surface 22 is a curved surface.

The left and right air guide surfaces 22 are provided with grooves having a triangular cross section perpendicular to the axial direction from a position near the center of the windward end of the flat plate of the wind direction plate 20 toward one of both corners on the leeward side. It is formed in a carved shape. The air guide surface 22 starts from a position near the center of the windward end of the flat plate portion of the wind direction plate 20 and ends at the end of the portion raised from the flat plate portion of the wind direction plate 20 in a trapezoidal cross section. This raised portion is shaped such that the height is zero at the windward end of the wind direction plate 20 and the height increases toward the leeward side. The axis of the groove is not a straight line but a curve. The ridge line portion of the air guide surface 22 forms a sharp ridge line. The rectilinear surface 23 is not a flat surface but a curved surface like a wave return of a breakwater. The left and right air guide surfaces 22 are symmetrical.

<Twelfth embodiment>
FIG. 19 shows a twelfth embodiment. The wind direction changing surface 21 according to the twelfth embodiment basically follows the shape of the eleventh embodiment, except for the following points. In other words, the height of the windward end of the portion of the wind direction plate 20 that rises from the flat plate portion to the trapezoidal cross section is zero in the eleventh embodiment. It is raised. The rectilinear surface 23 is not a flat surface but a curved surface like a wave return of a breakwater. The left and right air guide surfaces 22 are symmetrical.

<13th Embodiment>
FIG. 20 shows a thirteenth embodiment. The wind direction changing surface 21 according to the thirteenth embodiment basically follows the shape of the eleventh embodiment, except for the following points. That is, the groove forming the air guiding surface 22 has a width of zero at the windward end of the flat plate portion, and is carved so that the groove cross-sectional area gradually increases toward one of the corners on the leeward side. It has become. The air guide surface 22 has a substantially triangular cross-sectional shape in a direction orthogonal to the groove axial direction, and the groove axial direction is curved. The rectilinear surface 23 is not a flat surface but a curved surface like a wave return of a breakwater. The left and right air guide surfaces 22 are symmetrical.

<Fourteenth embodiment>
FIG. 21 shows a fourteenth embodiment. The wind direction changing surface 21 according to the fourteenth embodiment basically follows the shape of the tenth embodiment, except for the following points. That is, ear pieces 24 having a predetermined length projecting from the wind direction changing surface 21 and having a predetermined length also in the direction from the windward side to the leeward side are formed at the left and right ends of the windward end that is the center side of the rotation. . The presence of the ear piece 24 can suppress the air flow blown out in the direction lateral to the wind direction plate 20. The left and right air guide surfaces 22 are symmetrical.

<Fifteenth embodiment>
FIG. 22 shows a fifteenth embodiment. Similarly to the seventh embodiment, the wind direction plate 20 according to the fifteenth embodiment forms a dent that is a part of a spherical surface from the windward end of the flat plate portion of the wind direction plate 20 toward one of both corners on the leeward side. Thus, a concave air guide surface 22 is formed. Here, in the fifteenth embodiment, the air guide surface 22 toward the upper left corner and the air guide surface 22 toward the upper right corner are asymmetrical. This is achieved as follows. That is, the start point of the left air guide surface 22 and the start point of the right air guide surface 22 are both located closer to the left side than the center of the wind direction plate 20.

With the above configuration, the area of the right air guide surface 22 that receives the air flow is larger than that of the left air guide surface 22. The fan casing 14 is designed such that the sirocco fan 16 rotates counterclockwise in FIG. 22, but when the sirocco fan 16 rotates in that direction, as shown by the length of the arrow in FIG. Thus, there is a biased tendency that the air flow at the left side is more dominant than the air flow at the right side. If the right air guide surface 22 is made larger than the left air guide surface 22, the tendency of the air flow to be biased can be corrected and a uniform left-right flow can be performed. Thereby, the quantity of the airflow which blows off in the left-right direction can be equalized more.

<Sixteenth Embodiment>
FIG. 23 shows a sixteenth embodiment. The wind direction changing surface 21 according to the sixteenth embodiment basically follows the shape of the first embodiment, except for the following points. That is, the groove 25 is formed in the center of the rectilinear surface 23. Thereby, the wind direction angle to the front vertical direction can be changed, and the diversion of the air flow can be diversified. The left and right air guide surfaces 22 are symmetrical.

<Seventeenth Embodiment>
FIG. 24 shows the seventeenth embodiment. The wind direction changing surface 21 according to the seventeenth embodiment basically follows the shape of the first embodiment, except for the following points. That is, the flat plate portion of the wind direction plate 20 has a thickness (L1 <L4) as compared with the first embodiment, and the groove portion extends from the position near the center of the windward end toward one of the corners on the leeward side. A planar air guide surface 22 is formed in such a manner that a groove having a trapezoidal cross-sectional shape in a direction orthogonal to the axial direction is formed. The axial direction of the groove is inclined with respect to the longitudinal direction of the wind direction plate 20. The left and right air guide surfaces 22 are symmetrical.

<Eighteenth embodiment>
FIG. 25 shows an eighteenth embodiment. The wind direction changing surface 21 according to the eighteenth embodiment basically follows the shape of the eleventh embodiment, except for the following points. That is, the groove forming the air guide surface 22 has a width of zero at the windward end of the flat plate portion, and the side surface portion and the bottom surface so that the groove cross-sectional area gradually increases from the corner toward one of the corner portions on the leeward side. It has a carved shape with a part. In addition, the air guide surface 22 is curved in the axial direction of the groove. The rectilinear surface 23 is not a flat surface but a curved surface like a wave return of a breakwater. The left and right air guide surfaces 22 are symmetrical.

In the present invention, since the wind can be diverted forward and obliquely toward the left and right without combining a separate wind direction adjusting device, an effect of reducing the cold caused by the wind in the front direction can be obtained while suppressing a decrease in the air volume.

The embodiment of the present invention has been described above, but the scope of the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention.

The present invention can be widely used for a wind direction plate disposed at an outlet of a device having a function of blowing out air.

DESCRIPTION OF SYMBOLS 1 Air cleaner 10 Case 14 Fan casing 16 Sirocco fan 17 Air outlet 20 Air direction board 21 Air direction change surface 22 Air guidance surface 23 Straight advance surface 24 Ear piece 25 Groove

Claims

It is a wind direction plate that is arranged at the air outlet of a device having a function of blowing out air and changes the air blowing direction by causing the air direction changing surface on one side to interfere with the air flow,
The wind direction plate is characterized in that the air direction changing surface is formed with two air guiding surfaces for guiding an air flow from one side of the windward side toward one of both corners on the leeward side.
The wind direction plate according to claim 1, wherein the air guide surface is a curved surface.
The wind direction plate according to claim 2, wherein the air guide surface is formed with a part of a spherical concave portion.
The wind direction plate according to any one of claims 1 to 3, wherein the air guide surface toward one of the two corners and the air guide surface toward the other are asymmetrical.
The wind direction plate according to any one of claims 1 to 4, wherein a surface opposite to the wind direction changing surface is a flat surface.