JP2014224643A - Blower device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control a wind direction with a simple structure without having a fin for controlling the wind direction at a blow port of air.SOLUTION: The blower device comprises: a blowing cylinder body (13) that is formed into a cylindrical shape with one end opened and the other end blocked, that has a blow port (12) of introduction air introduced from an opening end to inside at a peripheral wall, and a pair of wall inner faces (13p, 13q) in a vertical direction which extend so as to approach to each other forward in an introduction air blowing direction with the blow port (12) as a border; first and second ducts (15, 17) whose downstream ends are connected to both sides with the blow port (12) at the opening end of the blow cylinder body (13) as a border; and wind amount control means (11) for individually controlling wind air amounts to the first and second ducts (15, 17) from a blowing source (9).

Description

  The present invention relates to a blower capable of adjusting the direction of wind blown from a blowout port.

  Japanese Patent Application Laid-Open No. 2004-133620 discloses a blow grill apparatus that can adjust the wind direction in the left-right direction without providing vertical fins at the air blow outlet. This grill apparatus has a horizontal fin for adjusting the wind direction in the vertical direction at the outlet of the main flow path of the wind formed in the grill body, and has sub-flow paths each provided with a damper on both sides of the main flow path. In addition, by selectively opening and closing the dampers of the sub-channels with a dial mechanism, the wind from the sub-channels is supplied to the main channel to adjust the wind direction of the main channel in the left-right direction.

Japanese Utility Model Publication No. 4-52607

  However, in the grill device of Patent Document 1, in addition to having two sub-channels in addition to the main channel, a damper provided for each sub-channel separately from the mechanism for adjusting the air volume, and a dial for opening and closing these dampers Since a mechanism is required, the number of parts is large and the structure is complicated.

  The present invention has been made in view of such points, and an object of the present invention is to control the wind direction with a simple structure without having a fin for controlling the wind direction at the air outlet. It is in providing the air blower which can do.

  In order to achieve the above object, the present invention has a configuration in which the direction of the wind blown from the blower outlet of the blower can be adjusted by controlling the strength of the two airflows.

  Specifically, the present invention is directed to an air blower capable of adjusting the direction of the wind blown from the air outlet, and takes the following solution.

  In other words, the first invention is formed in a cylindrical shape with one end open and the other end closed, and has a blowout outlet in the peripheral wall portion for blowing the introduced air introduced into the inside from the open end. A blow cylinder that extends so that one wall inner surface and the other wall inner surface in the direction orthogonal to the cylinder length direction approach each other toward the front in the blowing direction of the introduced air, and the downstream end is the blowing The first and second ducts connected to both sides of the opening at the open end of the cylinder, respectively, the air source that blows air to the first and second ducts, the air source, the first and the first By interposing between the two ducts and individually controlling the amount of air blown to the first and second ducts, the direction of the wind blown from the outlet is changed in a direction orthogonal to the cylinder length direction of the blowout cylinder. And an air volume control means. .

  According to a second aspect of the present invention, in the blower of the first aspect of the present invention, the internal space of the blowing cylinder is introduced into the inner wall on the back side corresponding to the outlet of the blowing cylinder, and the introduction air is introduced from the first duct. The partition part which partitions off into space and the 2nd space where introduction air is introduce | transduced from a 2nd duct is protrudingly provided toward the blower outlet.

  According to a third aspect of the present invention, in the blower of the second aspect of the invention, a straight line connecting both end edges in the direction perpendicular to the tube length direction of the blow-out cylinder at the blow-out port, and both the end edges of these blow-out ports and the blow-off of the partition portion. The straight line connecting the tip facing the outlet draws an equilateral triangle when viewed from the cylinder length direction of the blowing cylinder.

  According to the first invention, the introduced air introduced into the blow-out cylinder from the first and second ducts is guided in a direction crossing each other along the inner surfaces of the pair of wall portions located on both sides of the blow-out port. While flowing toward the air outlet, they merge while colliding with each other at the air outlet and the vicinity thereof and are blown out from the air outlet. Therefore, the direction of the wind blown out from the blowout port can be changed in a direction orthogonal to the tube length direction of the blowout cylinder by controlling the blown air amount to the first duct and the second duct by the airflow control means. Therefore, it is possible to control the wind direction with a simple structure without having a fin for controlling the wind direction at the air outlet. Thereby, a simple air blower can be realized even when the air outlet has only an opening, and the air blower and thus the design of a structure incorporating the air blower can be improved.

  According to the second aspect of the invention, the introduced air introduced into the blowout cylinder from the first and second ducts does not interfere with each other at the location other than the blowout outlet and the vicinity thereof in the blowout cylinder. The occurrence of turbulent flow inside the blowing cylinder is prevented. As a result, the direction of the wind can be easily controlled in the direction orthogonal to the cylinder length direction of the blowout cylinder.

  According to the third aspect of the present invention, the partition portion partitions the inside of the blowing cylinder from the first space and the second space, but the partition portion is too long and impinges on the outlet and inhibits the air blown out from the outlet. Therefore, it is possible to achieve both prevention of turbulent flow generation inside the blowout cylinder and securing the amount of air blown from the blowout port.

Drawing 1 is a front view which looked at an instrument panel provided with an air-conditioning unit containing a blower concerning an embodiment of the present invention from a vehicle interior. FIG. 2 is a cross-sectional perspective view partially showing the blowing cylinder and the air duct of the blower according to the embodiment of the present invention. FIG. 3 is an exploded perspective view partially showing the blowing cylinder and the air duct of the blower according to the embodiment of the present invention. Fig.4 (a) is a longitudinal cross-sectional view in the IVa-IVa line | wire of FIG. 3 among the blowing cylinders which concern on embodiment of this invention. FIG.4 (b) is a cross-sectional view in the IVb-IVb line | wire of FIG. 3 among the blowing cylinders which concern on embodiment of this invention. FIG. 5 is a cross-sectional view of the portion corresponding to FIG. 4 (b) showing the flow of wind during the blowing operation of the blower according to the embodiment of the present invention. FIGS. 6A to 6E are vertical cross-sectional views corresponding to FIG. 4A showing the valuation of the vertical wind direction control in the blower according to the embodiment of the present invention. FIG. 7 is a longitudinal cross-sectional view of a portion corresponding to FIG. 4 (a) showing the blowout cylinder of the blower according to the first modification of the embodiment of the present invention. FIG. 8 is a longitudinal cross-sectional view of a portion corresponding to FIG. 4 (a) illustrating a blowout cylinder of a blower device according to Modification 2 of the embodiment of the present invention. FIG. 9 is a cross-sectional view of a portion corresponding to FIG. 4 (b) showing the blowout cylinder of the blower according to the third modification of the embodiment of the present invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. The following embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its application, or its use.

  In this embodiment, an air conditioning unit for a vehicle to which the air blower according to the present invention is applied will be described as an example. FIG. 1 is a front view of an instrument panel 1 (indicated by a two-dot chain line) in which the vehicle air conditioning unit 2 is incorporated, as viewed from the passenger compartment.

  The instrument panel 1 is provided on the vehicle rear side (vehicle compartment side) of the dash panel that partitions the engine room and the vehicle compartment. The illustrated vehicle is a so-called right-hand drive vehicle, and the air conditioning unit 2 is installed on the back side (the front side of the vehicle) of the instrument panel 1 from the vicinity of the center in the vehicle width direction to the portion on the left side, that is, the portion on the passenger seat side. Yes.

  As shown in FIG. 1, the air conditioning unit 2 includes an air conditioner 3 that adjusts the temperature of the air that has been taken in, and air that has been taken in the vehicle interior and sent to the air conditioner 3, and conditioned air that has been adjusted by the air conditioner 3 is And a blower 5 for blowing air into the room. The blower 5 includes a blowing cylinder 13 in which an outlet 12 for blowing introduced conditioned air (introducing air) toward the vehicle interior is formed, and an air duct 7 for introducing conditioned air into the blowing cylinder 13. A blower 9 that is a blower source that blows air to the air duct 7 through the air conditioner 3 and an air volume control unit 11 that is an air volume control unit interposed between the air conditioner 3 and the air duct 7 are provided.

  The air conditioner 3 has an inlet connected to a blower pipe for circulating the air blown from the blower 9, and air blown by the blower 9 is introduced from this inlet. Although not shown, the air conditioner 3 includes, for example, a cooling heat exchanger and a heating heat exchanger, temperature input means such as an occupant operation panel and a dial provided in the instrument panel 1, and a vehicle interior. The target temperature of the conditioned air is set based on an input signal from a temperature sensor that detects the temperature of the conditioned air, and the conditioned air having a temperature corresponding to the target temperature is generated by driving both heat exchangers.

  The blowing cylinder 13 of the blower 5 is formed in a cylindrical shape with one end opened and the other end closed, and has a conditioned air outlet 12 on the peripheral wall. And the blowing cylinder 13 blows out the conditioned air (introduction air) introduced into the inside from the open end from the blower outlet 12 to the exterior. The blow-out cylinder 13 is a resin molded product, and is molded by blow molding or injection molding. The blowing cylinder 13 is installed at a position above a glove box (not shown) on the front side of the passenger seat in a state where the cylinder length direction is in a posture parallel to the vehicle width direction.

  The blowing cylinder 13 and the air duct 7 of the blower 5 are shown in FIGS. FIG. 2 is a perspective view partially showing the blowing cylinder 13 and the air duct 7. FIG. 3 is an exploded perspective view partially showing the blowing cylinder 13 and the air duct 7. 4A is a longitudinal sectional view taken along line IVa-IVa in FIG. FIG. 4B is a cross-sectional view taken along line IVb-IVb in FIG. FIG. 5 is a cross-sectional view of the portion corresponding to FIG. In addition, the arrow in FIG. 2 shows the flow of air when conditioned air is independently introduced into an upper half space 14a and a lower half space 14b, which will be described later, of the internal space 14 of the blowout cylinder 13. .

  As shown in FIGS. 2 and 3, the air outlet 12 extends in the cylinder length direction of the air outlet cylinder 13 at a position near the closed end of the front surface of the peripheral wall portion (surface on the vehicle rear side) of the air outlet cylinder 13. It is formed in an elongated shape. As shown in FIG. 4 (a), the blowout cylinder 13 has a rear side wall portion 13a having a U-shaped longitudinal section opened to the blowout port 12 side, and blowout ports from both upper and lower open ends of the rear wall portion 13a. 12 and a pair of front inclined wall portions 13b and 13c extending toward the respective sides.

  The rear side wall portion 13a is formed in an elongated strip-like back wall portion 13x disposed on the back side corresponding to the air outlet 12 and forward of the air outlet 12 from both ends in the vertical direction of the rear wall portion 13x. It has the upper wall part 13y and the lower wall part 13z which extend in parallel. The upper wall portion 13y and the lower wall portion 13z are in the form of elongated strips having the same dimensions as each other, and are formed integrally with the back wall portion 13x.

  The pair of front-side inclined wall portions 13b and 13c extend from the tips of the upper wall portion 13y and the lower wall portion 13z (ends located at the rear of the vehicle) toward the rear of the vehicle, and are inclined with respect to the opening center line C of the air outlet 12. ing. Specifically, the front inclined wall portion 13b located on the upper side extends obliquely downward toward the front in the blowing direction of the conditioned air. On the other hand, the front inclined wall portion 13c located on the lower side extends obliquely upward toward the front in the blowing direction of the conditioned air.

  And the wall part inner surface 13p of the front side inclination wall part 13b located in the upper side, and the wall part inner surface 13q of the front side inclination wall part 13c located in the lower side are the directions orthogonal to a cylinder length direction on the boundary of the blower outlet 12 That is, it is located on both sides in the up-down direction and extends so as to approach each other toward the front in the blowing direction of the conditioned air. Each of these front inclined wall portions 13b and 13c is formed integrally with the upper wall portion 13y and the lower wall portion 13z.

  Further, as shown in FIG. 4B, the blowout cylinder 13 has a side wall portion 13e connected to one end of the rear side wall portion 13a and the pair of front side inclined wall portions 13b and 13c in the cylinder length direction. Yes. The side wall portion 13e is formed integrally with the rear side wall portion 13a and the front inclined wall portions 13b and 13c, and constitutes a closed end of the blowing cylinder 13.

  The blower outlet 12 is formed between a pair of front side inclined wall parts 13b and 13c. As shown in FIGS. 2 and 3, a front wall portion 13 d is provided on the opening end side of the blowout cylinder 13 with respect to the outlet 12, and on the opposite side of the blowout port 12 from the front wall portion 13 d. The side wall 13e is located. That is, the blower outlet 12 is surrounded by a pair of front inclined wall portions 13b and 13c, a front wall portion 13d, and a side wall portion 13e.

  Further, as shown in FIG. 4B, a plurality of guide plates 13f extending in the vertical direction (three in the example shown in FIG. 4B) are provided in the portion corresponding to the outlet 12 inside the blow-out cylinder 13. ) Is provided. The plurality of guide plates 13f include an end edge located on the open end side of the blowout cylinder 13 at the blowout outlet 12, that is, an inlet side of the conditioned air, and a rear side corner on the closed end side of the blowout cylinder 13, that is, a side wall. Between the connection part of the part 13e and the back wall part 13x, it arranges in the state shifted little by little in the cylinder length direction of the blowing cylinder 13.

  Each of the guide plates 13f extends in the cylinder length direction of the blowing cylinder 13 and has an end portion located on the downstream side of the conditioned air flowing inside the blowing cylinder 13, that is, on the closed end side of the blowing cylinder 13. It has a substantially L-shaped cross section curved toward the side. Each of these guide plates 13f changes the traveling direction of the conditioned air introduced into the inside from the open end of the blowing cylinder 13 so as to easily guide the conditioned air to the outlet 12 as indicated by an arrow in FIG. Is.

  Further, as shown in FIG. 3, an insertion portion 13 g for connecting the air duct 7 protrudes from the open end of the blowing cylinder 13. This insertion portion 13g is a portion in which the inner surface side portion on the open end side of the blowout cylinder 13 protrudes outward in the tube length direction, that is, the vehicle width direction, and on the downstream side of the conditioned air flowing through the inside of the air duct 7. It is inserted into the open end (downstream end) located. That is, the downstream end of the air duct 7 is connected to the open end of the blowing cylinder 13 by being externally fitted to the fitting portion 13 g of the blowing cylinder 13. Inside the air duct 7 conditioned air from the air conditioner 3 is blown through the air volume control unit 11.

  The air duct 7 is a resin molded product, and is molded by blow molding, injection molding, or the like, and has the same outer shape as the blowout cylinder 13. That is, the air duct 7 includes a rear side wall part 7a (back wall part 7x, upper wall part 7y and lower wall part 7z) having a U-shaped longitudinal section extending continuously to the rear side wall part 13a of the blowing cylinder 13, and a blowing cylinder. A pair of front inclined wall portions 7b, 7c extending continuously to the front inclined wall portions 13b, 13c of the body 13, and a front wall portion 7d extending continuously to the front wall portion 13d of the blowing cylinder 13. Yes.

  Further, a partition wall 7 e is provided inside the air duct 7 at the same position as the outlet 12 in the vertical direction perpendicular to the cylinder length direction of the blowout cylinder 13. The internal space of the air duct 7 is partitioned into two ducts 15 and 17 in the vertical direction by the partition wall portion 7e.

  Specifically, the partition wall portion 7e connects the central portions in the vertical direction of the rear wall portion 7x and the front wall portion 7d of the air duct, and is formed integrally with both the wall portions 7x and 7d. The internal space of the air duct 7 includes the first duct 15 that introduces conditioned air into the upper half space 14 a of the internal space 14 of the blowout cylinder 13 with the partition wall 7 e as a boundary, and the interior of the blowout cylinder 13. The space 14 is partitioned into a second duct 17 for introducing conditioned air into the lower half space 14b. That is, the downstream ends of the first and second ducts 15 and 17 are connected to both the upper and lower sides with the air outlet 12 as a boundary.

  As shown in FIG. 1, the air volume control unit 11 is connected to the open end (upstream end) of the air duct 7 on the side opposite to the connection side of the blow-out cylinder 13, and each of the first and second ducts 15 and 17. Are provided with dampers (not shown) for adjusting the amount of air blown to the ducts 15 and 17. The air volume control unit 11 is configured to send air to the first and second ducts 15 and 17 based on an input signal for setting a wind direction from a wind direction input unit such as an occupant operation panel provided on the instrument panel 1 or a dial. Are controlled individually.

  In the air blower 5 having the above-described configuration, the air flow control unit 11 individually controls the air flow to the first and second ducts 15 and 17, so that the direction of the wind blown from the air outlet 12 is the tube length of the air outlet cylinder 13. It can be changed in the vertical direction, which is the direction orthogonal to the direction. Below, the operation | movement which controls the wind direction of the air blower 5 is demonstrated, referring Fig.6 (a)-(e). FIGS. 6A to 6E are longitudinal sectional views of the blowing cylinder 13 showing the valuation of the wind direction control in the vertical direction in the blower 5.

  When the input signal for setting the wind direction to the most upward direction is input from the wind direction input means, the blower device 5 eliminates the amount of air blown to the first duct 15 by the air volume control unit 11, that is, blows air to the first duct 15. In addition, the conditioned air from the air conditioner 3 is blown only to the second duct, with the amount of air blown to the second duct 17 set as a predetermined amount of blown air according to the wind intensity level set for the occupant.

  In this case, the conditioned air introduced from the second duct 17 into the lower half space 14a in the blowout cylinder 13 has a pressure difference between the inside and outside of the blowout cylinder 13 and a guide plate as shown in FIG. 13f is guided to the blower outlet 12 side, is directed to the blower outlet 12 along the wall inner surface 13q of the front inclined wall part 13c located on the lower side, and is blown obliquely upward from the blower outlet 12 to the passenger seat side as it is. . In this way, the direction of the wind blown out from the blower outlet 12 is directed most upward.

  In addition, when an input signal for setting the wind direction to the most downward direction is input from the wind direction input unit, the blower device 5 eliminates the flow rate of air to the second duct 17 by the air volume control unit 11, that is, to the second duct 17. The conditioned air from the air conditioner 3 is blown only to the first duct 15 with the blast volume for the first duct 15 set as a predetermined blast volume corresponding to the wind intensity level set for the occupant. .

  In this case, the conditioned air introduced from the first duct 15 into the upper half space 14a in the blowout cylinder 13 has a pressure difference between the inside and outside of the blowout cylinder 13 and the guide plate 13f, as shown in FIG. Are directed toward the air outlet 12 and directed toward the air outlet 12 along the wall inner surface 13p of the front inclined wall portion 13b located on the upper side, and are blown obliquely downward from the air outlet 12 toward the passenger seat. Thus, the direction of the wind blown out from the air outlet 12 is directed downward most.

  In addition, when an input signal for setting the wind direction to the center in the vertical direction is input from the wind direction input unit, the blower 5 is supplied by the air volume control unit 11 to the strength of the blow to the first duct 15 and the second duct 17. The amount of air blown to the first and second ducts 15 and 17 is set so that the air blowing strength at the same level.

  In this case, the conditioned air introduced from the first and second ducts 15 and 17 into the upper half space 14a and the lower half space 14b in the blowing cylinder 13 respectively, as shown in FIG. While being guided to the outlet 12 side by the pressure difference between the inside and outside of the blowing cylinder 13 and the guide plate 13f, it is guided in a direction intersecting with each other along the wall inner surfaces 13p, 13q of the pair of front inclined wall portions 13b, 13c. The air flows toward the air outlet 12, merges while colliding with the air outlet 12 and its vicinity, and is blown out from the air outlet 12. At this time, the ventilation strength of the conditioned air introduced from the first duct 15 into the upper half space 14a in the blowing cylinder 13 and the second duct 17 is introduced into the lower half space 14b in the blowing cylinder 13. Since the blast strength of the conditioned air is at the same level, the conditioned air introduced into the blowout cylinder 13 from both the ducts 15 and 17 blows out from the blowout port 12 toward the front passenger seat toward the center in the vertical direction. Is done. In this way, the direction of the wind blown out from the outlet 12 is directed to the center in the vertical direction.

  In addition, when an input signal for setting the wind direction slightly upward is input from the wind direction input unit, the blower device 5 causes the air volume control unit 11 to set the blowing intensity to the second duct 17 to the first duct 15. The blast volume for the first and second ducts 15 and 17 is set to be slightly stronger than the blast strength.

  In this case, the conditioned air introduced from the first and second ducts 15 and 17 into the upper half space 14a and the lower half space 14b in the blowing cylinder 13 respectively, as shown in FIG. Similarly to the case where the wind direction is set to the center in the vertical direction, the air flows toward the outlet 12 while being guided in the direction intersecting with each other along the wall inner surfaces 13p, 13q of the pair of front inclined wall portions 13b, 13c. The air is blown out from the air outlet 12 while colliding at and around the air outlet 12. At this time, the blast strength of the conditioned air introduced from the second duct 17 into the lower half space 14b in the blowing cylinder 13 is introduced from the first duct 15 into the upper half space 14b in the blowing cylinder 13. The conditioned air introduced into the internal space 14 of the blowout cylinder 13 from both the ducts 15 and 17 is a little stronger than the blowing strength of the conditioned air. The air is pushed by the wind flowing obliquely upward toward the front, and is blown out upward and downward from the air outlet 12 to the passenger seat side. Thus, the direction of the wind blown out from the air outlet 12 is slightly upward.

  In addition, when an input signal for setting the wind direction slightly downward is input from the wind direction input unit, the blower device 5 causes the air volume control unit 11 to set the blowing intensity to the first duct 15 to the second duct 17. The blast volume for the first and second ducts 15 and 17 is set to be slightly stronger than the blast strength.

  In this case, the conditioned air introduced from the first and second ducts 15 and 17 into the upper half space 14a and the lower half space 14b in the blowing cylinder 13 respectively, as shown in FIG. Similarly to the case where the wind direction is set to the center in the vertical direction, the air flows toward the outlet 12 while being guided in a direction crossing each other along the wall inner surfaces 13p, 13q of the pair of front inclined wall portions 13b, 13c, The air is blown out from the air outlet 12 while colliding with the air outlet 12 and its vicinity. At this time, the blast strength of conditioned air introduced from the first duct 15 into the upper half space 14a in the blowing cylinder 13 is introduced from the second duct 17 into the lower half space 14b in the blowing cylinder 13. The conditioned air introduced into the inside of the blowout cylinder 13 from these ducts 15 and 17 is directed from the upper half space 14 a of the blowout cylinder 13 toward the blowout port 12. Pushed by the wind flowing diagonally downward, it blows out downward from the air outlet 12 toward the passenger seat. In this way, the direction of the wind blown out from the air outlet 12 is directed slightly downward.

  As described above, the blower 5 can adjust the direction of the wind blown from the outlet 12 in the vertical direction by individually controlling the blown amount to the first and second ducts 15 and 17 by the air volume control unit 11. it can.

-Effect of the embodiment-
According to this embodiment, the direction of the wind blown from the blower outlet 12 can be adjusted in the vertical direction with a simple structure without having the fins for controlling the wind direction at the blower outlet 12 that blows out conditioned air. Thereby, the air blower 5 and the air-conditioning unit 2 provided with the air blower 12 which are simple in appearance can be realized, and the design of the instrument panel 1 incorporating the air-conditioning unit 2 can be improved. Moreover, since the blowing cylinder 13 and the air duct 7 constituting the blower device 5 of this embodiment do not require a large installation space in the vehicle front-rear direction, the degree of freedom of the installation location is increased, and an assistant that has been difficult to install conventionally. It can also be installed on the back side of the instrument panel 1 in front of the seat.

-Modification 1 of embodiment-
The air blower 5 of this modification 1 is demonstrated referring FIG. FIG. 7 is a longitudinal sectional view of a portion corresponding to FIG. 4 (a) showing the blowing cylinder 13 of the blower 5 of the present modification. In the above embodiment, the form in which the internal space 14 of the blowout cylinder 13 is not partitioned has been described. However, the internal space 14 of the blowout cylinder 13 of the present modification is a strip-shaped partition as shown in FIG. It is partitioned into two spaces by the portion 13h.

  The partition portion 13 h is provided at the center portion in the vertical direction of the back wall portion 13 x of the blowout cylinder 13 toward the blowout port 12, and the internal space 14 of the blowout cylinder 13 is conditioned air from the first duct 15. Is divided into an upper space 14a that is a first space into which the air is introduced and a lower space 14b that is a second space into which conditioned air is introduced from the second duct 17.

  The partition portion 13 h is formed over substantially the entire length of the blowout cylinder 13 and extends so that its tip is located inward of the blowout opening 12 and in the vicinity of the blowout opening 12. A direction orthogonal to the tube length direction of the blowout cylinder 13 at the blowout port 12, that is, a distance between both end edges in the vertical direction (opening width in the vertical direction) a, the blowout of the both end edges of these blowout ports 12 and the partition portion 13 h. The distances b and c from the tip facing the outlet 12 are set to be equal distances. That is, the straight line that connects both end edges in the vertical direction of the air outlet 12 and the straight line that connects both end edges of the air outlet 12 and the tip of the partition portion 13 h facing the air outlet 12 are the tube length of the air outlet cylinder 13. Draw an equilateral triangle as seen from the direction.

  Further, the rear side wall portion 13a of the blowout cylinder 13 in the present modification has a rear wall portion 13x, an upper wall portion 13y, and a lower wall portion 13z formed separately, and these rear wall portion 13x and the upper wall portion. 13y and the lower wall part 13z are integrally assembled by heat sealing or the like.

  According to such a configuration, the conditioned air introduced from the first and second ducts 15 and 17 into the blowout cylinder 13 interferes with each other at locations other than the blowout opening 12 and the vicinity thereof in the blowout cylinder 13. This prevents the occurrence of turbulent flow inside the blowing cylinder 13. As a result, it is possible to easily control the direction of the wind blown from the outlet 12 in the vertical direction.

  Further, the distance a between both end edges in the vertical direction of the air outlet 12 and the distances b and c between the both end edges of the air outlet 12 and the tip of the partition portion 13h facing the air outlet 12 are set to be equal. Thus, while partitioning the inside of the blowing cylinder 13 into the upper space 14a and the lower space 14b by the partitioning portion 13h, the partitioning portion 13h is too long to reach the air outlet 12 and inhibit the wind blown from the air outlet 12. There is no reduction in the amount of air blown. Accordingly, it is possible to achieve both prevention of turbulent flow generation inside the blowout cylinder 13 and securing the amount of air blown from the blowout port 12.

-Modification 2 of embodiment-
The air blower 5 of this modification 2 is demonstrated referring FIG. FIG. 8 is a longitudinal sectional view of a portion corresponding to FIG. 4 (a) showing the blowing cylinder 13 of the blower 5 of the present modification. In the first modification, the partition portion 13h is shaped like a strip. However, as shown in FIG. 8, the rear wall portion 13x of the blowout cylinder 13 is partially formed in the partition portion 13h according to the present modification. 12 is formed by a mountain-shaped protruding portion 13 h protruding toward 12.

  The protruding portion 13h is formed over substantially the entire length of the blowing cylinder 13 in the cylinder length direction. The protruding portion 13h includes a pair of inclined wall portions 13i positioned on both upper and lower sides with the opening center line C of the outlet 12 as a boundary. The pair of inclined wall portions 13 i are inclined with respect to the opening center line C of the air outlet 12.

  The inclined wall portion 13 i located on the upper side extends obliquely downward toward the air outlet 12. On the other hand, the inclined wall portion 13 i located on the lower side extends obliquely upward toward the air outlet 12. And a pair of these inclined wall parts 13i connect the front-end | tip parts integrally, and comprise the protrusion part 13h. Even with such a configuration, it is possible to obtain the same effects as those of the first modification. In addition, the rear side wall part 13a of the blowing cylinder 13 in this modification is formed integrally with a back wall part 13x, an upper wall part 13y, and a lower wall part 13z, as in the above embodiment.

—Modification 3 of Embodiment—
The air blower 5 of this modification 3 is demonstrated referring FIG. FIG. 9 is a cross-sectional view of a portion corresponding to FIG. 4B showing the blowout cylinder 13 of the blower 5 according to this modification. In the above-described embodiment, a plurality of guide plates 13f are provided inside the blowout cylinder 13 at locations corresponding to the blowout openings 12, and the conditioned air introduced into the internal space 14 of the blowout cylinder 13 is guided to the blowout openings 12 side. As shown in FIG. 9, the blowing device 5 of the present modification is not provided with the guide plate 13 f inside the blowing cylinder 13, and the blowing cylinder is formed only by the pressure difference between the inside and outside of the blowing cylinder 13. The conditioned air introduced into the internal space 14 of the body 13 is guided to the outlet 12 side.

  Moreover, the side wall part 13e of the blowing cylinder 13 in this modification is formed in the curved shape so that it may protrude convexly toward the side (left side in FIG. 9) of the blowing cylinder 13. As a result, the conditioned air introduced into the blowout cylinder 13 and flowing along the inner wall surface of the back wall portion 13x on the back side of the blowout cylinder 13, as shown by arrows in FIG. It turns to the blower outlet 12 side along the inner wall face of the part 13e, and blows off from the blower outlet 12 outside.

  Even with such a configuration, it is possible to obtain the same effects as those of the above-described embodiment.

  In the above embodiment, the first and second ducts 15 and 17 are configured by partitioning the inside of the air duct into two spaces. However, the present invention is not limited to this, and the first duct 15 and the second duct The air duct (separate member) separate from the two ducts 17 may be used.

  Moreover, in the said embodiment, although the air volume control part 11 was provided with the damper which adjusts the ventilation volume to the 1st and 2nd ducts 15 and 17, the ventilation volume to the 1st and 2nd ducts 15 and 17 is provided. If it is possible to control each of the first and second ducts 15 and 17 by using a device other than the damper, the air flow rate may be adjusted.

  Moreover, in the said modification 1, the partition part 13h is the length from which the distances b and c of the front-end | tip and the both ends edge in the up-down direction of the blower outlet 12 are equal to the distance a between these both edges of the blower outlet 12. However, the present invention is not limited to this, and the partition portion 13h may be formed longer than the length shown in the first modification, or may be formed shorter.

  As described above, the present invention is useful for a blower, and in particular, it is desired to control the wind direction with a simple structure without having fins for controlling the wind direction at the air outlet. Suitable for blower.

5 Blower 9 Blower (Blower Source)
11 Air volume control unit (air volume control means)
12 Outlet 13 Outlet cylinder 13h Partition part 13p, 13q Wall part inner surface 13x Back wall part (Inner wall on the back side of the blowout cylinder)
14a Upper space (first space)
14b Lower space (second space)
15 First duct
17 Second duct

Claims (3)

It is formed in a cylindrical shape with one end open and the other end closed, and has a blowout port (12) for blowing out the introduced air introduced from the open end to the outside in the peripheral wall portion, and the blowout port (12) is a boundary. As a blowing cylinder (13p), one wall inner surface (13p) and the other wall inner surface (13q) in a direction orthogonal to the cylinder length direction extend so as to approach each other toward the front in the blowing direction of the introduced air. )When,
First and second ducts (15, 17) whose downstream ends are respectively connected to both sides of the outlet end (12) at the open end of the outlet cylinder (13);
An air source (9) for sending air to the first and second ducts (15, 17);
By interposing between the air source (9) and the first and second ducts (15, 17) and individually controlling the amount of air flow to the first and second ducts (15, 17) And an air volume control means (11) for changing the direction of the wind blown from the blowout port (12) in a direction orthogonal to the tube length direction of the blowout cylinder (13). The blower device according to claim 1,
An inner space (14) of the blowing cylinder (13) is connected to the inner wall (13x) on the back side corresponding to the outlet (12) of the blowing cylinder (13) from the first duct (15). A partition portion (13h) that divides the first space (14a) into which the introduction air is introduced and the second space (14b) into which the introduction air is introduced from the second duct (17) includes the outlet (12 The air blower characterized by projecting toward the head. The blower device according to claim 2,
A straight line connecting both end edges in the direction perpendicular to the tube length direction of the blowout cylinder (13) at the blowout port (12), the both ends of the blowout port (12), and the partition portion (13h) The air blower characterized in that a straight line connecting the tip facing the air outlet (12) forms an equilateral triangle when viewed from the cylinder length direction of the air outlet cylinder (13).

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