JP2015183995A - fan unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce uneven wind speed of a blow air flow while preventing reduction in the wind speed of the whole blow air flow.SOLUTION: A fan unit (2) includes: a cylindrical housing (21) formed longitudinal in one direction with one end in the longitudinal direction being opened and the other end being closed; a fan (22) provided at opening side of the housing (21) and sends air into an inside of the housing (30); an outlet (23) provided straight along a longitudinal direction of the housing; and at least one wind direction guide plate (4). In the inside of the housing (30), there are provided: an outlet proximity region (31) which is in contact with the outlet and extends in the longitudinal direction; and an outlet apart region (32) which is apart from the outlet and extends in the longitudinal direction. Among the two regions, the wind direction plate (4) is fixed to the outlet apart region (32) so that a wind amount from the outlet is made uniform from one end to the other end of the outlet.

Description

  The present invention relates to a fan unit, and more particularly, to a fan unit for generating a curtain-like airflow to cause air to flow along an indoor surface of a window on a building outer wall.

  In recent years, airflow windows and double skins have been adopted that include glass provided at the opening of the building's outer wall, blinds that shield solar radiation inside the glass, and glass provided inside the blind. ing. An airflow window and a double skin are systems that reduce heat load by flowing air into a space formed between an outer glass and an inner glass.

  On the other hand, since the airflow window and the double skin form an airtight space between the outer glass and the inner glass, there are problems such as high cost. Therefore, as a structure in which no glass is provided on the inside, for example, techniques such as Japanese Patent Application Laid-Open No. 7-18959 (Patent Document 1) and Japanese Patent No. 2663755 (Patent Document 2) are considered.

  Patent Document 1 discloses a solar shading device characterized in that a blind composed of a plurality of slats is installed inside a window glass, and a screen having transparency is attached to the indoor end of the blind. It is disclosed. In Patent Document 2, an opaque roll screen for shielding sunlight woven with opaque fibers inside a window glass and a transparent roll screen with a low radiation film affixed to each other are provided with a ventilation interval between them. There is disclosed a solar shading device characterized in that these roll screens can be moved up and down individually.

  When it is necessary to cause air to flow along the indoor surface of the window on the outer wall of the building, including an airflow window, a fan unit that generates a curtain-like blown airflow is provided at a position below the ventilation space.

  For example, Japanese Patent Laid-Open No. 2000-274769 (Patent Document 3) has an elongated chamber having one end opened and the other end closed, and one axial flow fan (fan) is provided at the opening end portion. A blower is disclosed. The blower is provided with a slit-like outlet along the longitudinal direction of the chamber in order to generate a curtain-like blown airflow having a uniform wind speed in the longitudinal direction. Further, in order to generate a blown airflow at right angles to the axial direction of the chamber, a plurality of rectifying plates are provided inside the chamber so as to be in contact with the blowout port.

Japanese Patent Laid-Open No. 7-18959 Japanese Patent No. 2663755 JP 2000-274769 A

  If a plurality of wind direction guide plates (rectifying plates) are provided so as to be in contact with the outlet as in Patent Document 3, it is conceivable that the wind speed of the entire outlet air flow is reduced. Moreover, it may be difficult to install a wind direction guide plate so that it may touch a blower outlet on manufacture.

  The present invention has been made in order to solve the above-described problems, and its object is to reduce a variation in the wind speed of the blown airflow without reducing the wind speed of the entire blown airflow as much as possible. Is to provide a unit.

  A fan unit according to an aspect of the present invention includes a cylindrical casing, a fan, a blowout port, and at least one wind direction guide plate. The casing is long in one direction, one end side in the longitudinal direction is opened, and the other end side is closed. The fan is provided on the opening side of the casing and sends wind into the casing. The outlet is provided in a line along the longitudinal direction of the casing, and blows out the wind sent from the fan into the casing. The airflow direction guide plate is separated from the air outlet adjacent area extending in the longitudinal direction in contact with the air outlet and the air outlet in the housing in order to make the air flow from the air outlet uniform from one end to the other end of the air outlet. Of the outlet separation area extending in the longitudinal direction, the outlet separation area is fixed.

  Preferably, the wind direction guide plate has a surface facing both the fan and the outlet.

  Preferably, the housing has a rectangular cross section, and the wind direction guide plate is fixed to a second surface facing the first surface provided with the outlet.

  Preferably, the wind direction guide plate is disposed away from at least one of the pair of third surfaces intersecting the first surface.

  The housing has a first region located on one end side and a second region located on the other end side with the longitudinal center position as a boundary, and the wind direction guide plate may be provided in the first region. desirable.

  A plurality of wind direction guide plates may be provided in the casing along the longitudinal direction. In this case, the plurality of wind direction guide plates are desirably different in at least one of size, mounting angle, shape, and interval between adjacent wind direction guide plates.

  The plurality of wind direction guide plates include a first plate closer to the fan and a second plate far from the fan. It is desirable that the first plate has a larger shielding area for blocking wind than the second plate with respect to the flow path area of the housing when the housing is seen through from the fan side.

  According to the fan unit of the present invention, it is possible to reduce unevenness in the wind speed of the blown airflow without reducing the wind speed of the entire blown airflow as much as possible. In addition, a wind direction guide plate can be easily installed in the housing.

It is sectional drawing which shows typically the opening part structure of the building outer wall which concerns on embodiment of this invention. It is the figure which looked at the fan unit which concerns on embodiment of this invention from the side surface side. It is a figure which shows partially the upper surface of the fan unit which concerns on embodiment of this invention. It is sectional drawing which shows typically the inside of the housing | casing of the fan unit which concerns on embodiment of this invention. In embodiment of this invention, it is a figure which shows typically the area | region where a wind direction guide plate is installed. In embodiment of this invention, it is a figure for demonstrating the shielding area of a wind direction guide plate. It is a figure which shows typically the variation in the blowing wind speed when not providing a wind direction guide board in the housing | casing of a fan unit. It is a figure which shows the test body (fan unit) used for experiment. It is a figure which shows the experimental result in the conditions 1 in the test body shown in FIG. It is a figure which shows the experimental result in the conditions 2 in the test body shown in FIG. It is a figure which shows the experimental result in the conditions 3 in the test body shown in FIG. It is a figure which shows the experimental result in the conditions 4 in the test body shown in FIG. It is a figure which shows the experimental result in the conditions 5 in the test body shown in FIG. It is a figure which shows the experimental result in the conditions 6 in the test body shown in FIG.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

  The fan unit according to the present embodiment is provided on the indoor side of the building and below the window (opening) provided on the outer wall. First, the opening structure of the building outer wall including the fan unit according to the present embodiment will be briefly described.

<About the opening structure of the building outer wall>
FIG. 1 shows an opening structure 10 of a building outer wall according to the present embodiment. The opening structure 10 employs an opening structure of a building outer wall that has been filed by the applicant as Japanese Patent Application No. 2013-150904. The opening structure 10 includes a window 11, a window shielding member 15, an intake portion 16, and an exhaust portion 19. The window shielding member 15 is disposed inside the window 11. The intake portion 16 is disposed below the window 11. The exhaust part 19 is disposed above the window 11.

  The window 11 shields the entire opening 102 of the building outer wall 101, a first window 12 that shields the lower part of the opening 102 of the building outer wall 101, and a second window 13 that shields the upper part of the opening 102. Have. In the present embodiment, the window 11 includes first and second windows 12 and 13, and the second window 13 is provided on the first window 12. The first and second windows 12 and 13 include, for example, a window frame and glass attached to the window frame. Glass is transparent and can capture solar radiation.

  The first window 12 is a closed window. For example, a FIX window that cannot be opened or closed may be used, or a window that can be opened or closed may be used. The second window 13 is a window that can be opened and closed, and for example, a smoke exhaust window, an outside fall window, or the like can be used. Alternatively, the window 11 may be a sliding window, the first window 12 and the second window 13 may be fitted on different rails, and the second window 13 may be slid to be opened and closed.

  The window shielding member 15 is arranged along the inner side (indoor surface) of the window 11 and shields the window 11 and the room inside the building. The window shielding member 15 forms a flow path (hereinafter also referred to as “air layer 14”) through which air flows between the window shielding member 15 and the window 11. The window shielding member 15 may be a blind, a roll screen, a curtain, etc., for example. The window shielding member 15 is preferably a material that shields solar radiation, and more preferably a material having high solar reflectance.

  The window shielding member 15 has an upper end edge 15A and a lower end edge 15B opposite to the upper end edge 15A, and is provided so that the upper end edge 15A can be displaced in the vertical direction. That is, the window shielding member 15 is configured to open from above. For this reason, the window shielding member 15 can arbitrarily adjust the opening area (degree of opening) from above.

  Here, the upper end edge 15 </ b> A is the uppermost position in the window shielding member 15. In other words, the upper end edge 15A is the highest position of the window shielding member 15 when the window shielding member 15 is viewed from the indoor side of the building. The maximum height of the upper edge 15 </ b> A of the window shielding member 15 may be substantially the same as the upper edge of the first window 12 or the lower edge of the second window 13. On the other hand, the lower end edge 15 </ b> B of the window shielding member 15 is preferably fixed, and is, for example, substantially the same height as the lower end edge of the first window 12.

  As described above, even when the upper end edge 15 </ b> A of the window shielding member 15 is positioned so that the space facing the second window 13 is opened, the air rising up the air layer 14 flows along the window 11. That is, even if there is an opening between the window shielding member 15 and the ceiling, for example, by adjusting the size of the suction port in the exhaust part 19, the distance between the upper edge 15 </ b> A and the exhaust part 19, etc. Leakage of air in the air layer 14 from the opening between the upper end edge 15 </ b> A of the shielding member 15 and the ceiling, and inflow of indoor air from the opening to the air layer 14 can be suppressed. Note that the upper edge 15A of the window shielding member 15 may be raised to the ceiling height.

  It is desirable that the window shielding member 15 be inclined so as to approach the window 11 from the bottom to the top. That is, it is desirable that the air layer 14, which is an air flow path formed between the window shielding member 15 and the window 11, narrows from the bottom to the top. This is because an air flow having high directivity along the window shielding member 15 can be formed in the air layer 14. By doing so, even if there is an opening between the window shielding member 15 and the ceiling, air leakage of the air layer 14 from the opening and inflow of indoor air from the opening to the air layer 14 Can be more reliably suppressed. As a result, exhaust heat efficiency is increased.

  In order to make the upper end edge 15A of the window shielding member 15 displaceable in the vertical direction, for example, a support member (not shown) for supporting the upper end edge 15A of the window shielding member 15 and the window shielding member 15 are provided. A winding member (not shown) for winding is disposed. The support member is provided in a rail shape on both sides of the opening 102, for example, and both end portions in the width direction of the upper edge 15A of the window shielding member 15 pass through the support member and can be adjusted in the vertical direction. it can. At this time, both ends of the window shielding member 15 may or may not be supported by rail-like support members. The winding member is provided below the lower end edge 15B of the window shielding member 15, for example. Further, in order to tilt the window shielding member 15 so as to approach the window 11 from the bottom to the top, for example, the rail-shaped support member is tilted so as to approach the window 11 from the bottom to the top. Deploy.

  The intake section 16 is disposed below the first window 12, sucks indoor air, and causes the air to flow through the air layer 14 that is a space formed between the window 11 and the window shielding member 15. The fan unit 2 is provided in the intake portion 16.

  The exhaust unit 19 is disposed above the second window 13 and exhausts air to at least one of the inside of the building and the outside of the building. When the exhaust unit 19 exhausts air to the outside of the building, the exhaust unit 19 is provided, for example, on the ceiling. In the present embodiment, the exhaust part 19 is provided on the second window 13 and its inlet is directly above the air layer 14. A fan 190 may also be disposed in the exhaust unit 19. In addition, if the exhaust part 19 is the structure which discharges the air which was attracted | sucked from the intake part 16 and rose along the window 11 to at least one of the inside of a building and the exterior of a building, it will be provided in the wall on the 2nd window 13. The arrangement is not particularly limited.

  In the opening structure 10 of the building outer wall as described above, the opening and closing of the second window 13 and the position of the upper edge 15A of the window shielding member 15 are adjusted according to the temperature and the climate, so that the building outer wall is adjusted. The thermal load on the opening 102 of the 101 can be reduced. In addition, the outer wall 101 above the second window 13 may be provided with a gutter 103 in order to have a solar radiation blocking function and a daylighting function inside the building according to the season or the like.

  As described above, the fan unit 2 is provided in the intake section 16. By providing the fan unit 2 below the window 11, the flow of air in the air layer 14 can be promoted. Thereby, since the air flow rate of the air layer 14 increases in synergy with the chimney effect, the amount of exhaust heat can be increased. Below, the structure of the fan unit 2 which concerns on this Embodiment is demonstrated in detail.

<About the fan unit>
With reference to FIG. 1 and FIG. 2, the outline | summary of the fan unit 2 is demonstrated first. FIG. 2 shows the external appearance of the fan unit 2 as viewed from the indoor side with the cover member 17 removed.

  The fan unit 2 is disposed below the window 11 on the indoor side. The fan unit 2 extends in the width direction of the window 11, and generates a curtain-like blowing airflow in order to cause air to flow through the air layer 14. A part of the indoor side surface 21 c and the upper surface 21 a of the fan unit 2 is covered with the cover material 17. As described above, the fan unit 2 is disposed in the space 104 surrounded by the outer wall 101 located below the window 11 and the cover member 17. In this case, the lower end edge 15 </ b> B of the window shielding member 15 described above is in contact with the cover material 17.

  The fan unit 2 includes a cylindrical casing 21, a fan 22, and an outlet 23. The casing 21 is long in one direction, one end side in the longitudinal direction is opened, and the other end side is closed. The housing 21 has a rectangular cross section. The fan 22 is provided on the opening side of the housing 21 and sends wind into the housing 21. The housing 21 functions as a chamber box.

  The outlet 23 is provided in a line along the longitudinal direction of the casing 21, and blows out the wind sent from the fan 22 into the casing 21. Since the blowout port 23 is provided in the upper surface 21a of the housing | casing 21, the air from the blowout port 23 flows through the air layer 14 as an updraft. As shown in FIG. 3, the air outlet 23 has a slit structure. That is, the air outlet 23 is partitioned by a plurality of partition plates 232 provided in a rectangular frame 231 that rises upward from the upper surface 21 a of the housing 21. Since the partition plate 232 extends in the vertical direction, air is blown out in a direction orthogonal to the longitudinal direction.

  In the present embodiment, the air outlet 23 is provided, for example, at a position near the window 11 on the upper surface 21a. An airtight packing (not shown) may be provided around the frame body 231 of the outlet 23 in order to close the gap with the cover member 17. In addition, when the horizontal member 110 between the first window 12 and the second window 13 protrudes to the indoor side, the air outlet 23 prevents the air current from being disturbed by the horizontal member 110. Is preferably provided near the window shielding member 15.

  As described above, when the fan unit 2 includes the fan 22 only on one end side of the casing 21, as shown in FIG. 7, the air volume from the outlet 23, that is, the wind speed increases toward the other end side. Tend to be. That is, the amount of air blown from the outlet 23 varies (unevenness) in the longitudinal direction. However, it is desirable that the amount of air blown from one end to the other end of the outlet 23 is uniform. Therefore, in the present embodiment, as shown in FIG. 4, at least one wind direction guide plate 4 is provided in the internal space 30 of the housing 21.

  The wind direction guide plate 4 is fixed to the bottom surface 21 b of the housing 21. That is, it fixes to the surface which opposes the upper surface 21a in which the blower outlet 23 was provided. More specifically, the wind direction guide plate 4 extends from the outlet port 23 so that the wind can pass in a longitudinal direction in a region 31 (hereinafter, referred to as “blower port proximity region”) that extends in the longitudinal direction in contact with the outlet port 23. is seperated. That is, the airflow direction guide plate 4 is fixed to a region 32 (hereinafter referred to as “blowout port separation region”) that extends away from the blowout port 23 in the longitudinal direction. FIG. 5 conceptually shows these areas.

  Referring to FIG. 5, the internal space 30 of the housing 21 of the fan unit 2 has a blowout outlet proximity area 31 and a blowout opening separation area 32. The area indicated by hatching in the vicinity of the blowout opening 23 is the blowout opening proximity area 31, and the other area is the blowout opening separation area 32. However, it is desirable that the wind direction guide plate 4 is disposed away from the air outlet 23 in a direction perpendicular to the air outlet 23. Note that the shapes and sizes of the regions 31 and 32 shown in FIG. 5 are merely examples.

  The wind direction guide plate 4 is desirably disposed away from at least one of the pair of side surfaces 21c and 21d of the housing 21 in order to secure a flow path also on the side thereof. In the present embodiment, the wind direction guide plate 4 is disposed away from the side surface 21c far from the outlet 23.

  The wind direction guide plate 4 includes, for example, a base portion 41 fixed on the bottom surface 21b in the internal space 30 of the housing 21, and a shielding portion 42 connected to the base portion 41 and extending obliquely upward toward the other end side. including. That is, the shielding part 42 has a surface facing both the fan 22 and the outlet 23. Thereby, the flow to the other end side of the wind from the fan 22 can be blocked by the surface of the shielding portion 42 on the fan 22 side, and the flow to the outlet 23 can be guided. Thereby, even if the wind direction guide plate 4 is provided, the rate of decrease in the wind speed of the airflow blown from the fan 22 can be suppressed.

  The base portion 41 and the shielding portion 42 of the wind direction guide plate 4 are formed by bending a single plate, for example. The shielding part 42 is connected to the end part of the other end side of the base part 41, for example. Therefore, when the wind direction guide plate 4 is installed in the housing 21, the base portion 41 only needs to be fixed on the bottom surface 21b with a fixing tool such as a screw or an adhesive. Therefore, the wind direction guide plate 4 can be easily installed in the housing 21.

  Here, a plurality of types of conditions such as the number, arrangement position, size, mounting angle, shape, and spacing between adjacent wind direction guide plates in the case of a plurality of air direction guide plates 4 are determined by the air volume and housing of the fan 22. It may be determined according to the size of the internal space 30 of the body 21 or the like. When a plurality of wind direction guide plates 4 are provided, it is desirable that the plurality of wind direction guide plates 4 are different from each other in at least one of the above-described multiple types of conditions.

  Below, the experimental results conducted by the applicant will be described. The experiment was performed by changing a plurality of patterns of conditions such as the installation position and number of wind direction guide plates. 8A and 8B, at least one wind direction guide plate is installed in the casing of the test body (fan unit) as shown in FIGS. 8A and 8B, and the wind speed of the air blown from the blowout port is set at 11 locations (A to A). K). The wind speed at each location is expressed as an average value of measured values obtained by providing a wall having a height of 50 mm from the outlet on both sides in the longitudinal direction of the outlet and measuring at a height of 50 mm for 15 seconds. 8A shows a top view of the specimen, and FIG. 8B shows a plan view when the specimen is viewed from the fan side, and the specimen is cut along the longitudinal direction. A vertical cross-sectional view is shown.

  The experimental results under six conditions among the plurality of conditions are shown in FIGS. Each figure (A) and (B) is a drawing corresponding to Drawing 8 (A) and (B), respectively. 9A to 14A, broken lines indicate the shape of the wind direction guide plate as viewed from above. Further, the width of the wind direction guide plate is indicated by symbols Wa to Wc. 9B to 14B, the shape of the wind direction guide plate when viewed from the side is shown by a solid line. Further, the height of the wind direction guide plate is indicated by symbols Ha to Hj, and the mounting angle is indicated by a numerical value. In each figure (C), the wind speeds at 11 locations along the longitudinal direction of the outlet and the overall average wind speed are shown in tabular form. In each figure (D), the wind speed at each of 11 locations is shown as a line graph.

  The width Wa of the wind direction guide plate is smaller than the width Wb and larger than the width Wc. The heights Ha to Hj of the wind direction guide plates are in order of height so that the height Ha is the lowest and the height Hj is the highest.

From the experimental results under conditions 1 to 6, the following findings were obtained.
(1) When paying attention to one wind direction guide plate, there is a tendency that the wind speed increases before this and the wind speed decreases on the back side.
(2) The number of wind direction guide plates is preferably 2 or less, and may be one. It is because the wind speed of the whole blowing airflow falls that the number of wind direction guide plates is 3 or more.
(3) It is desirable to provide a wind direction guide plate on the side close to the fan. This is because, on the side far from the fan, even if a wind direction guide plate is provided, it does not function so much to reduce unevenness in wind speed. More preferably, when the internal space of the housing is divided into four equal parts in the longitudinal direction, a wind direction guide plate is provided in a region closest to the fan.
(4) It is desirable to provide a wind direction guide plate that narrows the flow path on the side close to the fan. This is because the rate of decrease in the wind speed of the entire blown airflow can be suppressed, and the region where the wind speed unevenness occurs is reduced. Specifically, assuming that the flow path area of the housing when the housing is seen through from the fan side is 100, the shielding area where the wind direction guide plate closest to the fan blocks the wind is, for example, in the range of 50-60. It is desirable.

  In view of the above (1) to (4), as shown in FIG. 4, the fan unit 2 of the present embodiment has, for example, two wind direction guide plates 4. The mounting angle θ of the wind direction guide plate 4 is, for example, 75 degrees. When it is necessary to distinguish between the two wind direction guide plates 4, the direction closer to the fan 22 is referred to as the wind direction guide plate 4A, and the direction farther from the fan 22 is referred to as the wind direction guide plate 4B.

  Conceptually, a region located on one end side is defined as a first region 33 and a region located on the other end side is defined as a second region 34 with the longitudinal center position 300 of the casing 21 as a boundary. In this case, the wind direction guide plates 4A and 4B are both provided in the first region 33. That is, the wind direction guide plate 4 need not be provided in the second region 34 located on the other end side of the housing 21.

  Conceptually, of the first region 33, a region located on one end side with the longitudinal central region 330 as a boundary is divided into a fan proximity region 331 and a region located on the other end side is divided into a central region 332. . In this case, it is desirable that at least the wind direction guide plate 4 </ b> A near the fan 22 is provided in the fan proximity region 331. In the present embodiment, the wind direction guide plate 4 </ b> B far from the fan 22 is also provided in the fan proximity region 331.

  The shielding area of the wind direction guide plate 4A is larger than the shielding area of the wind direction guide plate 4B. The shielding area will be described with reference to FIG. In FIG. 6A, the flow path area of the casing 21 when the casing 21 is seen through from the fan 22 side (one end side) is shown by hatching. 6B and 6C, the shielding areas of the wind direction guide plates 4A and 4B are shown by hatching, respectively. As shown in FIGS. 6B and 6C, since the wind direction guide plate 4A is larger in both height and width than the wind direction guide plate 4B, the shielding area of the wind direction guide plate 4A is larger. large. The wind direction guide plate 4A has a shielding area of, for example, about 55 when the flow path area of the casing 21 is 100.

  In the present embodiment, the two wind direction guide plates 4 are provided close to each other in the housing 21, but only the wind direction guide plate 4A on the side close to the fan 22 may be provided. Even in this case, as shown in the condition 6 in FIG. 14, there are few regions where the variation in the wind speed of the blown airflow occurs. When the number of the wind direction guide plates 4 is one, the labor for installing the wind direction guide plates 4 can be further saved, and the manufacturing cost of the fan unit 2 can be reduced.

  In the present embodiment, the fan unit 2 is used to flow air along the inner surface of the window 11 of the building outer wall 101 as shown in FIG. However, the fan unit 2 may be used for other purposes. That is, the fan unit 2 may be installed at a place other than the lower side of the window 11 on the building outer wall 101. In that case, the air outlet 23 of the fan unit 2 may be provided on a surface other than the upper surface 21 a of the housing 21. Further, the cross-sectional shape of the housing 21 is not limited to a rectangular shape.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  2 fan unit, 4, 4A, 4B wind direction guide plate, 5 support member, 10 opening structure, 11 window, 12 1st window, 13 2nd window, 14 air layer, 15 window shielding member, 16 air intake part, 17 Cover material, 18 Strut member, 19 Exhaust part, 21 Housing, 22, 190 Fan, 23 Air outlet, 24, 25 Mounting part, 30 Internal space, 31 Air outlet proximity area, 32 Air outlet separation area, 33 1st Region, 34 Second region, 41 Base portion, 42 Shield portion, 51 Housing contact portion, 52, 53 Post contact portion, 61, 62 Connecting member, 101 Building outer wall, 102 Opening portion, 103 庇, 232 Partition plate , 250 through-hole, 331 fan proximity area, 332 center area.

Claims (7)

A cylindrical casing that is long in one direction, open at one end in the longitudinal direction, and closed at the other end;
A fan that is provided on the opening side of the housing and sends air into the housing;
A blowout port that is provided in a line along the longitudinal direction of the casing and blows out the wind sent from the fan into the casing;
In order to make the amount of air blown from the blowout port uniform from one end to the other end of the blowout port, away from the blowout port proximity region extending in the longitudinal direction in contact with the blowout port and the blowout port in the housing A fan unit comprising: at least one airflow direction guide plate fixed to the air outlet separation region out of the air outlet separation region extending in the longitudinal direction.   The fan unit according to claim 1, wherein the wind direction guide plate has a surface facing both the fan and the outlet. The housing has a rectangular cross section;
The fan unit according to claim 1 or 2, wherein the wind direction guide plate is fixed to a second surface facing the first surface provided with the outlet.   The fan unit according to claim 3, wherein the wind direction guide plate is disposed away from at least one of a pair of third surfaces intersecting the first surface. The housing has a first region located on the one end side and a second region located on the other end side with a longitudinal center position as a boundary,
The fan unit according to claim 1, wherein the wind direction guide plate is provided in the first region. The casing is provided with a plurality of wind direction guide plates along the longitudinal direction,
The fan according to any one of claims 1 to 5, wherein at least one of the plurality of wind direction guide plates is different in size, mounting angle, shape, and interval between adjacent wind direction guide plates. unit. The plurality of wind direction guide plates include a first plate closer to the fan and a second plate far from the fan,
The shielding area for blocking wind from the flow path area of the casing when the casing is seen through from the fan side is larger in the first plate than in the second plate. The described fan unit.