JP2015163489A - Air blowing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve design of an instrument panel and efficiently circulate in a vehicle.SOLUTION: An air blowing device for vehicle blowing air from an air blowing port (9) disposed on an instrument panel (1) toward a space in a vehicle (S) is configured so that: the air blowing port (9) is disposed on a rear wall (5) facing a vehicle rear direction on the instrument panel (1), and the rear wall (5) has an inclination part (7) extending obliquely upward to the rear direction of the vehicle, and air flow which is blown upward from the air blowing port (9) flows along the inclination part (7) by coanda effect, and after air is separated from the instrument panel (1) at an upper side of the inclination part (7) on the rear wall (5), the air is sent to a rear seat side along a ceiling surface (103a) of the vehicle.

Description

  The present invention relates to a vehicle blower that blows air from a blower opening provided in an instrument panel to a vehicle interior space.

  As this type of blower, Patent Document 1 discloses a wide flow ventilator that blows air from a blower port (blow-out port) that is elongated to the left and right. This wide flow ventilator includes a partition plate that bisects the air blowing port in a duct that sends air to the air blowing port, and a damper that switches the air sending side between the upper side and the lower side of the air blowing port divided by the partition plate. The direction of the wind blown from the blower opening is adjusted by the switching operation of the damper.

Japanese Utility Model Publication No. 02-82614

  Since the air outlet of the air blower like patent document 1 is provided in the position which is visible to a passenger | crew above the instrument panel, even if it is the elongate opening shape, the design property of an instrument panel is impaired conspicuously.

  Then, in order to improve the design property of an instrument panel, it is possible to provide a ventilation port in the position which cannot be easily seen by a passenger | crew on the lower side of an instrument panel.

  However, if the air vent is provided at a low position, the front seat is used to circulate the air in the passenger compartment by blowing wind upward from the air vent and flowing the air flow along the ceiling surface of the vehicle. The occupant's face is directly exposed to the wind from the air outlet, and the occupant may feel uncomfortable, and it becomes difficult to efficiently circulate the air in the passenger compartment.

  This invention is made in view of such a point, The place made into the objective is to improve the designability of an instrument panel, and the air blower which can circulate the air of a vehicle interior efficiently. It is to provide.

  In order to achieve the above object, according to the present invention, an air blowing port is provided at a position away from the upper end portion on the rear wall of the instrument panel, and the upward air flow blown from the air blowing port Using the effect, it was guided along the rear wall of the instrument panel toward the vertical direction.

  Specifically, the present invention is directed to a vehicle blower that blows air from a blower opening provided in an instrument panel to a vehicle interior space, and takes the following solution.

  That is, 1st invention has the structure by which the ventilation port is provided in the rear wall which faces a vehicle back among instrument panels. The rear wall of the instrument panel has an inclined portion that extends obliquely upward toward the rear of the vehicle on the upper side of the blower opening. And 1st invention makes the flow of the air ventilated upward from the ventilation port into the airflow which followed the inclination part in the rear wall of the instrument panel by the Coanda effect, and is above the inclination part among the rear walls. After being peeled off from the instrument panel at a portion, it is sent to the rear seat side along the ceiling surface of the vehicle.

  The "Coanda effect" here refers to the flow of a fluid such as a gas or liquid drawn near a surface that extends in a direction different from the flow and flows in a direction along the surface. It is a phenomenon to be attempted.

  2nd invention is the air blower of 1st invention, The cylindrical air blowing part by which the blower outlet connected to the blower outlet of an instrument panel was provided in the surrounding wall, and the cylinder length direction of this air blowing part The air passage part is connected to at least one side of the air passage, and introduces air into the air blowing part, and the air source that blows air to the air passage part. The air blowing section is installed in the instrument panel in a posture in which the cylinder length direction is along the vehicle width direction. In the second invention, the direction of the wind blown from the blower outlet through the blowout port of the air blowout part is set in the direction perpendicular to the cylinder length direction of the air blowout part, that is, the vehicle height. A wind direction control member that changes depending on the direction (vertical direction of the vehicle) is provided.

  According to a third aspect of the present invention, in the blower of the second aspect, at least a portion corresponding to the outlet is formed in a circumferential shape on the inner peripheral surface of the air blowing portion. The wind direction control member is a movable shaft that is inserted through the inside of the air blowing portion, and a movable shaft that is rotatably supported by the rotating shaft and partitions the inside of the air blowing portion from the rotating shaft to the circumferential surface of the air blowing portion. And a partition plate. Further, the third invention further includes a rotation operation means for operating the rotation operation of the movable partition plate, and the movable partition plate is rotated by the rotation operation means, and the partition inside the air blowing portion by the movable partition plate is provided. By moving the position, the direction of the wind blown from the blower outlet through the blower outlet is changed in a direction orthogonal to the cylinder length direction of the air blowing part, that is, in the vehicle height direction (vertical direction of the vehicle). .

  Here, “partitioning the inside of the air blowing part from the rotating shaft to the circumferential surface of the air blowing part” means that the outside of the movable partition plate located on the circumferential surface side of the air blowing part. In addition to the case where the end is in contact with the circumferential surface, the meaning includes the case where the outer end of the movable partition plate is slightly separated from the circumferential surface of the air blowing portion and close to the circumferential surface. is there.

  According to the first aspect of the invention, since the air outlet is provided at a position away from the upper end of the inclined portion on the rear wall of the instrument panel, the air outlet is hidden by the inclined portion and is visible to the passenger. hard. Thereby, the designability of the instrument panel can be improved. Further, according to the first invention, the flow of air blown upward from the air blowing port is converted into an air flow along the inclined portion of the rear wall of the instrument panel using the Coanda effect, and is guided toward the vertical direction. Therefore, even if the air outlet is set below the inclined portion, it is possible to avoid the face of the front seat occupant being directly exposed to the wind from the air outlet. Then, after the airflow guided toward the vertical direction in this way is peeled off from the instrument panel at the upper part of the inclined part of the rear wall of the instrument panel, it is moved along the ceiling surface of the vehicle to the rear seat side. Since the air is sent, it is possible to create an airflow that flows to the rear seat side beyond the head of the front seat occupant and efficiently circulates the air in the passenger compartment.

  According to the second aspect of the invention, since the direction of the wind blown from the blower port is changed in the vehicle height direction by the wind direction control member provided inside the air blowing part, the blower port is controlled in order to control the wind direction. It is possible to make a simple structure with only an opening without fins. As a result, the air blowing port can be made even less conspicuous, and even if it enters the occupant's field of view, the structure is simple and the design of the instrument panel can be further improved without drawing attention.

  According to the third aspect of the present invention, as the wind direction control member, the movable partition plate that is rotatably supported by the rotation shaft is provided inside the air blowing portion, and the wind blown from the air blowing port by the rotating operation of the movable partition plate is provided. Since the direction is changed in the vehicle height direction, the wind direction in the vehicle height direction can be controlled with a simple structure and without fins for controlling the wind direction.

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. Drawing 2 is a mimetic diagram by the side of a passenger's seat explaining air current when air is blown upward from a blower mouth of a blower concerning an embodiment of the present invention. FIG. 3 is a cross-sectional view showing a cylindrical blowing structure of the blower according to the embodiment of the present invention and a part of the air duct. FIG. 4 is an exploded perspective view of the cylindrical blowing structure of the blower according to the embodiment of the present invention. FIGS. 5A to 5C are a longitudinal sectional view of a cylindrical blowout structure and its surroundings showing an example of a valuation for controlling the wind direction in the vertical direction in the blower according to the embodiment of the present invention. FIGS. 6A to 6C are cross-sectional views of a blowout cylinder showing an example of a valuation in the left-right direction in the blower according to 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 the present embodiment, for convenience of explanation, the front side in the vehicle front-rear direction is referred to as “front”, the rear side is referred to as “rear”, the upper side in the vehicle height direction is referred to as “upper”, and the lower side is referred to as “lower”. Facing forward, the left side in the vehicle width direction is referred to as “left”, and the right side is referred to as “right”.

  In this embodiment, a blower according to the present invention will be described by taking an air conditioning unit for a vehicle to which the blower is applied as an example. FIG. 1 is a front view of an instrument panel 1 (indicated by a two-dot chain line) in which the air conditioning unit 11 is incorporated, as viewed from the passenger compartment. FIG. 2 is a schematic view showing the passenger seat side in 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 instrument panel 1 is a panel for a right-hand drive specification vehicle. As shown in FIG. 2, a front window panel 101 is provided above the instrument panel 1 so as to be inclined upward toward the rear of the vehicle. Further, the rear end of the front window panel 101 is fixed to a vehicle body 103 that constitutes a ceiling surface 103a of the vehicle.

  The instrument panel 1 is provided with an air conditioning unit 11 together with various meters such as a speedometer and an engine tachometer, various switches such as an ignition switch and a fog lamp, various devices such as an audio device and a car navigation system. As shown in FIG. 1, the air conditioning unit 11 is mounted on the back side (the vehicle front side) of the instrument panel 1 from the vicinity of the center in the vehicle width direction to the left side portion, that is, the passenger seat side portion.

  As shown in FIG. 2, the instrument panel 1 includes an upper wall 3 whose outer surface faces upward and a rear wall 5 whose outer surface faces rearward on the passenger seat side. The rear wall 5 of the instrument panel 1 constitutes an inclined portion 7 that extends obliquely upward toward the rear of the vehicle. A blower port 9 is provided in a portion away from the upper end of the inclined portion 7 downward.

  That is, the rear wall 5 of the instrument panel 1 has inclined portions 7 on both the upper side and the lower side of the air blowing port 9. As described above, since the inclined portion 7 is provided on the upper side of the air blowing port 9, the air blowing port 9 is hidden by the inclined portion 7 and is difficult to be seen by the occupant H. The blower opening 9 is a simple opening that is formed in a flat shape (slit shape) that is elongated in the vehicle width direction, and does not include a fin for controlling the wind direction.

  The air conditioning unit 11 blows air from the blower opening 9 provided in the inclined portion 7 to the vehicle interior space S. As shown in FIG. 1, the air conditioning unit 11 includes an air conditioner 13 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 13, and conditioned air that has been adjusted by the air conditioner 13 is supplied to the vehicle. And an air blower 15 for blowing air into the indoor space S.

  Although not shown, the air conditioner 13 includes, for example, a cooling heat exchanger and a heating heat exchanger, and includes 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 air, and the conditioned air having a temperature corresponding to the target temperature is generated by driving both heat exchangers. .

  The blower 15 guides the upward conditioned air flow blown from the blower opening 9 toward the vertical direction by using the Coanda effect along the inclined portion 7 of the rear wall 5 of the instrument panel 1. (See FIG. 2). The blower 15 includes a blower 17 that blows air in the passenger compartment to the air conditioner 13, an air duct 19 as an air passage portion through which conditioned air generated by the air conditioner 13 flows, and conditioned air introduced from the air duct 19. Is provided with a cylindrical blowing structure 21 that blows air toward the vehicle interior space S, and an air volume control unit 23 that controls the amount of air blown from the air conditioner 13 to the cylindrical blowing structure 21 via the air duct 19. .

  The blower 17 is a blower source that blows air to the air duct 19 via the air conditioner 13 and the air volume control unit 23. The air duct 19 includes a pair of ducts 25L and 25R that are respectively connected to both ends of the cylindrical blowing structure 21. Specifically, the air duct 19 includes a left duct 25 </ b> L connected to the left end portion of the cylindrical blowing structure 21 and a right duct 25 </ b> R connected to the right end portion of the cylindrical blowing structure 21.

  The left duct 25 </ b> L has a shape extending from the left end portion of the cylindrical blowing structure 21 to the right side of the structural body 21, and is positioned on the front side of the structural body 21 along the cylindrical blowing structure 21. An open end of the left duct 25 </ b> L opposite to the connection side with the tubular blowing structure 21 is connected to the air volume control unit 23. Further, the open end of the right duct 25 </ b> R opposite to the connection side with the tubular blowing structure 13 is also connected to the air volume control unit 23.

  Both the left duct 25L and the right duct 25R are resin molded products, and are molded by blow molding, injection molding, or the like. Hereinafter, when the left duct 25L and the right duct 25R are not distinguished from each other, they may be simply referred to as “duct 25”.

  FIG. 3 is a cross-sectional view of the cylindrical blowing structure 21 and a part of the air duct 19. FIG. 4 is an exploded perspective view of the cylindrical blowing structure 21. As shown in FIGS. 3 and 4, the cylindrical blowout structure 21 includes a blowout cylinder 29 as an air blowout portion having a blowout opening 27 connected to the blower opening 9 of the instrument panel 1, and the blowout cylinder. 29 is provided with a wind direction adjusting mechanism 31 that adjusts the direction of the wind blown from the air outlet 27 of the air outlet 29, that is, the direction of the air blown from the air blowing port 9, and the wind direction adjusting mechanism 31 is accommodated inside the blowing cylinder 29. Have

  The blowout cylinder 29 is formed in a cylindrical shape whose both ends are open, and has a circumferential inner peripheral surface 29a throughout. The blowout cylinder 29 is installed in the instrument panel 1 in a posture in which the cylinder length direction is along the vehicle width direction. The blower outlet 27 is provided in a flat shape (slit shape) extending in the cylinder length direction corresponding to the blower opening 9 in a portion of the peripheral wall of the blowout cylinder 29 located on the vehicle rear side. The blowout cylinder 29 is a resin molded product and is formed by blow molding or injection molding.

  A left duct 25 </ b> L is fitted and connected to the inside of the blowing cylinder 29 at the left open end of the blowing cylinder 29, and a right duct 25 </ b> R is connected to the right opening end of the blowing cylinder 29. It is inserted and connected inside. The left duct 25L and the right duct 25R are adapted to introduce conditioned air into the blowout cylinder 29 from the open ends connected to each other.

  The outlet 27 of the blowout cylinder 29 is an opening that blows conditioned air introduced into the blowout cylinder 29 from the left duct 25L and the right duct 25R into the vehicle interior space S through the blower opening 9. Further, in the peripheral part of one open end (the right open end in the example shown in FIG. 4) of the blowing cylinder 29, the upper part and the rear part extend in a concave shape in the left-right direction and Positioning grooves 33 opened to the right are formed at intervals of about 90 degrees.

  The wind direction adjusting mechanism 31 includes a rotating shaft 35 inserted through the inner center of the blowing cylinder 29, a pair of bearing portions 37 that rotatably supports the rotating shaft 35 on both the left and right sides of the blowing cylinder 29, and the pair The movable partition plate 39 supported by the rotating shaft 35 between the bearing portions 37, the fixed partition plate 41 disposed behind the rotating shaft 35 between the pair of bearing portions 37, and the rotating operation of the movable partition plate 39. Rotation operating means 42 for operating the. Among these, the rotating shaft 35, the pair of bearing portions 37, the movable partition plate 39, and the fixed partition plate 41 constitute a wind direction control member 24.

  Each bearing portion 37 includes a cylindrical holding portion 43 through which the rotation shaft 35 is inserted, an annular outer ring portion 45 disposed with its outer peripheral surface in contact with the inner peripheral surface 29a of the blowout cylinder 29, and these A plurality of (four in the example shown in FIG. 4) connecting portions 47 that connect the holding portion 43 and the outer ring portion 45 are provided, and the holding portion 43, the outer ring portion 45, and the connecting portion 47 are integrally formed as a whole. It is shaped like a wheel.

  Each connecting portion 47 is formed in a thin small plate shape that extends straight from the holding portion 43 in the radial direction of the outer ring portion 45. The plurality of connecting portions 47 are arranged so as to extend radially in four directions on the upper, lower, left, and right sides of the holding portion 43 at intervals, for example. The bearing portion 37 can send conditioned air to the inner central side of the blowing cylinder 29 through the adjacent connecting portions 47 in this way.

  Further, a closing plate 49 that partially closes the space between the adjacent connecting portions 47 is provided on the rear portion of each bearing portion 37. The closing plate 49 is located on the outer side of the connecting portion 47 located on the rear side, that is, on the left side of the bearing portion 37, on the left side of the connecting portion 47, and on the right side of the connecting portion 37, on the right side of the connecting portion 47. Are integrally formed. As a result, the conditioned air introduced from the duct 25 to the inside of the blowing cylinder 29 passes through the bearing portion 37, and from the rear side portion closed by the closing plate 49, the inside central side of the blowing cylinder 29. However, it flows from the closing plate 49 to the inner central side of the blowing cylinder 29 through the back side (vehicle front side) of the blowing cylinder 29.

  The rotating shaft 35 is inserted into each holding portion 43 of the pair of bearing portions 37 and protrudes from the respective bearing portions 37 to the left and right sides. A right end portion of the rotating shaft 35 protruding rightward from the right bearing portion 37 is secured to the bearing portion 37 by fastening with a speed nut 51. Further, the left end portion of the rotating shaft 35 protruding leftward from the left bearing portion 37 is inserted into the insertion hole 26 formed in the left duct 25L and protrudes outside the left duct 25L.

  The left end portion of the rotating shaft 35 is secured to the left duct 25L by being fastened by a driven gear 53 constituting the rotation operation means 42 outside the left duct 25L. The outer peripheral surface of the left end portion 35 a of the rotating shaft 35 is knurled. The processed portion 35 a is press-fitted into the bearing hole 53 a of the driven gear 53, so that the driven gear 53 is moved to the left end of the rotating shaft 35. It is fixed to the portion 35a.

  The movable partition plate 39 is formed in the shape of a rectangular strip extending along the rotation shaft 35, and the inside of the blowing cylinder 29 is separated from the rotation shaft 35 at a position corresponding to the outlet 27 in the blowing cylinder 29. The blowout cylinder 29 is partitioned in a radial direction over an inner peripheral surface 29a which is a circumferential surface. The outer end of the movable partition plate 39 located on the inner peripheral surface 29a side of the blowing cylinder 29 is in contact with the inner peripheral surface 29a, or is slightly separated from the inner peripheral surface 29a of the blowing cylinder 29 and its inner periphery. The state is close to the surface 29a.

  A pair of attachment pieces 40 for attaching the movable partition plate 39 to the rotating shaft 35 are provided on both the left and right sides of the movable partition plate 39. Each of the attachment pieces 40 has an insertion hole that is inserted into the rotation shaft 35, and is fixed to the rotation shaft 35 by press-fitting the rotation shaft 35 into the insertion hole. In this way, the movable partition plate 39 can rotate in the direction along the inner peripheral surface 29a of the blowing cylinder 29 around the rotation shaft 35 in accordance with the rotation operation of the rotation shaft 35, and can rotate together with the rotation shaft 35. Thus, it is possible to change the partition position inside the blowing cylinder 29. Thereby, the air blower 15 can change the direction of the wind blown from the blower opening 9 through the blower outlet 27 in a direction orthogonal to the cylinder length direction of the blowout cylinder 29, that is, in the vertical direction.

  That is, the conditioned air introduced from the duct 25 into the blowout cylinder 29 is when the partition position of the movable partition plate 39 is a predetermined position, for example, the position where the outer end of the movable partition plate 39 faces the front side. The movable partition plate 39 separates the lower airflow flowing clockwise and the upper airflow flowing counterclockwise as viewed from the right side of the blowing cylinder 29 along the inner peripheral surface 29a of the blowing cylinder 29. The lower airflow flows obliquely upward to the blowout port 27 through a portion from the lower side to the rear side of the inner peripheral surface 29a of the blowout cylinder 29. On the other hand, the upward airflow flows obliquely downward to the outlet 27 via a portion from the upper side to the rear side of the inner peripheral surface 29a of the blowing cylinder 29.

  These two airflows flow in the opposite directions along the inner peripheral surface 29a of the blowout cylinder 29 to the blowout port 27 and merge while colliding with each other at the blowout port 27 and the vicinity thereof. 27, the air is blown out through the air outlet 9. When the two air currents separated by the movable partition plate 39 blow out from the air blowing port 9 as the portion of the inner peripheral surface 29a of the blowing cylinder 29 along which the air flow from the movable partition plate 39 to the outlet 27 is longer, In addition to the increased directivity, the space through which the airflow flows increases, and the air volume increases accordingly. From this, by changing the partition position of the movable partition plate 39 by the rotation operation means 42, the balance of the blowing intensity by these two air currents is changed, and the direction of the wind blown from the blowing port 9 is changed in the vertical direction. Can do.

  The rotation operation means 42 includes a driven gear 53 fixed to the left end portion 35a of the rotary shaft 35 described above, and a motor 57 having a drive gear 55 that meshes with the driven gear 53 provided on the output shaft. The motor 57 is a motor that can switch the rotation direction between forward rotation and reverse rotation. The movable partition plate 39 is rotated together with the rotary shaft 35 by driving the motor 57 and transmitting the rotational power of the drive gear 55 to the rotary shaft 35 via the driven gear 53. The rotation operation means 42 performs driving of the motor 57 and switching of the rotation direction based on an input signal for setting the wind direction from a wind direction input means such as an occupant operation panel provided on the instrument panel 1 or a dial. The rotating operation of the movable partition plate 39 is operated.

  Further, the fixed partition plate 41 is formed in a strip shape extending along the rotation shaft 35 and is disposed between the rotation shaft 35 and the outlet 27 in a state of being spaced apart from the rotation shaft 35 with a slight gap. Thus, a space in which two airflows (upper airflow and lower airflow) separated by the movable partition plate 39 flow in front of the air outlet 27 is partitioned. Both ends of the fixed partition plate 41 are integrally connected to a connecting portion 47 located on the rear side of the holding portion 43 in the corresponding bearing portion 37. In other words, the two connecting portions 47 located on the rear side of the holding portion 43 of the pair of bearing portions 37 are connected to each other via the fixed partition plate 41. The fixed partition plate 41 extends from the rotary shaft 35 side to the air outlet 27 side until the rear end facing the air outlet 27 side is aligned with the closing plate 49 in the left-right direction.

  Further, on the outer peripheral surface of the outer ring portion 45 of one bearing portion 37 (the right-side bearing portion 37 in the example shown in FIG. 4) of the pair of bearing portions 37, the upper portion and the rear portion extend in a protruding manner in the left-right direction. The positioning protrusions 59 are provided with an interval of about 90 degrees. The wind direction adjusting mechanism 31 slides these positioning protrusions 59 into the positioning grooves 33 of the blowing cylinder 29 from the right side so that the rear end of the fixed partition plate 41 faces the outlet 27 side. It is positioned in the state.

  The air volume control unit 23 includes a damper (not shown) that adjusts the amount of air blown to each of the left duct 25L and the right duct 25R. And this air volume control part 23 is the blowing cylinder body from the left duct 25L by extension to the air flow with respect to the left duct 25L and right duct 25R ventilated by the blower 17 based on the input signal which sets the wind direction from the said wind direction input means. The amount of air blown into the inside 29 and the amount of air blown into the blowout cylinder 29 from the right duct 25R are individually controlled.

  In the air blower 15 having the above-described configuration, the movable partition plate 39 is rotated by the rotation operation means 42 to change the partition position of the movable partition plate 39 inside the blowing cylinder 29 by the movable partition plate 39, whereby the air blowing port 9. By changing the direction of the air blown from the top and bottom in the vertical direction, and by changing the blown air amount from the at least one duct 25 out of the left duct 25L and the right duct 25R to the inside of the blowing cylinder 29 by the air volume control unit 23 The direction of the air blown from the blower opening 9 is changed in the tube length direction of the blowing cylinder 29, that is, in the left-right direction.

  And in this air blower 15, since the inclination part 7 of the instrument panel 1 is provided in the upper side of the ventilation port 9, the flow of the conditioned air ventilated upward from the ventilation port 9, as shown in FIG. However, due to the Coanda effect, an airflow is formed along the inclined portion 7 in the rear wall 5 of the instrument panel 1 and is guided toward the vertical direction. The airflow thus guided toward the vertical direction arrives at the ceiling surface 103a of the vehicle after peeling off from the instrument panel 1 at a portion of the rear wall 5 above the inclined portion 7, and reaches the ceiling surface 103a. Along the backseat. Thereby, the air in a vehicle interior can be circulated efficiently and air conditioning, such as heating and cooling, can be performed efficiently.

  Below, the wind direction control of the air blower 15 is demonstrated, referring FIG. 5 (a)-(c) and FIG. 6 (a)-(c). FIG. 5A to FIG. 5C are longitudinal sectional views of the cylindrical blowing structure 21 and its surroundings showing an example of the valuation of the vertical air direction control in the blower 15. FIGS. 6A to 6C are cross-sectional views of the blowing cylinder 29 showing an example of the valuation of the wind direction in the left-right direction in the blower 15.

  In addition, the arrow shown as a continuous line in these Fig.5 (a)-(c) and FIG.6 (a)-(c) is the conditioned air inside the blowing cylinder 29, and the conditioned air ventilated from the ventilation port 9. Shows the flow. Moreover, the arrow shown with a dashed-dotted line in FIG. 6 (a), (b) has shown the compressed air which stayed in the inside of the blowing cylinder 29. FIG. In FIGS. 6A to 6C, only the blowout cylinder 29 is illustrated, and the other configurations such as the movable partition plate 39 and the fixed partition plate 41 are not illustrated.

  First, the operation | movement which controls the direction of the wind blown from the ventilation port 9 of the air blower 15 to an up-down direction is demonstrated, referring Fig.5 (a)-(c).

  When an input signal for setting the wind direction to the most upward direction is input from the wind direction input means, the blower 15 rotates the movable partition plate 39 by driving the motor 57 of the rotation operation means 42 as necessary. As shown in FIG. 5A, the outer end of the movable partition plate 39 is set to a state near the upper edge of the air outlet 27.

  In this case, the conditioned air introduced from the duct 25 to the inside of the blowing cylinder 29 is caused by the pressure difference between the inside and outside of the blowing cylinder 29 along the inner peripheral surface 29 a of the blowing cylinder 29. As seen from the right side, the air flows clockwise, and blown out obliquely upward from the air blowing port 9 to the vehicle interior space S through the air outlet 27. At this time, the flow of the conditioned air blown obliquely upward from the air blowing port 9 becomes an air flow along the inclined portion 7 on the upper side of the air blowing port 9 due to the Coanda effect, as described above, and is included in the rear wall 5 of the instrument panel 1. After being peeled from the instrument panel 1 at a portion above the inclined portion 7, it flows to the rear seat side along the ceiling surface 103a of the vehicle. In this way, the direction of the air blown from the blower opening 9 is directed in the direction raised upward along the inclined portion 7 of the instrument panel 1.

  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 15 drives the motor 57 of the rotation operation unit 42 to rotate the movable partition plate 39 as necessary. As a result, as shown in FIG. 5B, the outer end of the movable partition plate 39 is set to a state near the lower end edge of the air outlet 27.

  In this case, the conditioned air introduced from the duct 25 to the inside of the blowing cylinder 29 is caused by the pressure difference between the inside and outside of the blowing cylinder 29 along the inner peripheral surface 29 a of the blowing cylinder 29. Flows in the counterclockwise direction when viewed from the right side of the inner peripheral surface 103a, flows from the upper side to the rear side through the rear part of the inner peripheral surface 103a to the blower outlet 27, and passes through the blower outlet 27 from the blower outlet 9 to the vehicle interior space. S is blown obliquely downward as it is. In this way, the direction of the wind blown from the blower port 9 is directed most downward.

  Further, 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 15 drives the motor 57 of the rotation operation unit 42 as necessary to move the movable partition plate 39. As shown in FIG. 5C, the outer end of the movable partition plate 39 is set in a state opposite to the fixed partition plate 41.

  In this case, the conditioned air introduced from the duct 25 into the blowout cylinder 29 is separated into a lower airflow and an upper airflow by the movable partition plate 39. These two airflows flow in the opposite directions along the inner peripheral surface 29a of the blowout cylinder 29 to the blowout port 27 and merge while colliding with each other at the blowout port 27 and the vicinity thereof. 27, the air is blown from the blower opening 9 to the vehicle interior space S.

  At this time, the intensity of the conditioned air blown by the lower airflow and the upper airflow separated by the movable partition plate 39 is such that the partition position of the movable partition plate 39 in the blowout cylinder 29 moves up and down in the blowout cylinder 29. Since it is at the same level because it is in a half-divided position, the conditioned air introduced from the duct 25 into the blowout cylinder 29 is blown out from the blower port 9 toward the center in the vertical direction. In this way, the direction of the wind blown from the blower opening 9 is directed to the center in the vertical direction.

  Although not shown, when the input signal for setting the wind direction slightly upward with respect to the center of the vertical direction is input from the wind direction input means, the air blower 15 tilts the outer end of the movable partition plate 39 upward. Keep it facing forward.

  In this case, the partition position by the movable partition plate 39 inside the blowing cylinder 29 is such that the space in which the upper airflow flows is relatively narrow and the space in which the lower airflow flows is relatively wide in the blowing cylinder 29. Therefore, the conditioned air blowing strength by the lower airflow is stronger than the conditioned air blowing strength by the upper airflow. As a result, the conditioned air introduced from the duct 25 into the blowout cylinder 29 is pushed by the wind due to the lower airflow, and blown upward and downward from the blower outlet 9 through the blowout outlet 27. In this way, the direction of the wind blown from the blower opening 9 is slightly directed upward. As a result, a direct wind can be sent to the passenger in the passenger seat.

  In addition, the blower 15 can rotate the partition position by the movable partition plate 39 inside the blowing cylinder 29 even when an input signal for setting a wind direction other than the above in the vertical direction is input from the wind direction input unit. At 42, the position is changed according to the input signal. Thereby, the direction of the air blown from the blower opening 9 is directed in a predetermined direction in the vertical direction.

  Next, an operation for controlling the direction of the air blown from the blower opening 9 of the blower 15 in the left-right direction will be described with reference to FIGS.

  When the input signal for setting the wind direction to the leftmost is input from the wind direction input means, the blower 15 eliminates the air flow to the left duct 25L by the air volume control unit 23, that is, stops the air flow to the left duct 25L. At the same time, the conditioned air from the air conditioner 13 is blown only to the right duct 25R, with the blast volume for the right duct 25R as a predetermined blast volume corresponding to the wind strength level set for the occupant.

  In this case, the conditioned air introduced into the blowout cylinder 29 from the right duct 25R flows from the right to the left inside the blowout cylinder 29 as shown in FIG. Due to the pressure difference between the inside and the outside of the air outlet 29, the flow is changed to an oblique left flow directed toward the air outlet 27 toward the air outlet 27, and blown from the air outlet 9 through the air outlet 27 to the left obliquely as it is. In this way, the direction of the wind blown from the blower opening 9 is directed to the left most.

  Further, when an input signal for setting the wind direction to the rightmost direction is input from the wind direction input unit, the blower device 15 eliminates the amount of air blown to the right duct 25R by the air volume control unit 23, that is, blows air to the right duct 25R. In addition, the conditioned air from the air conditioner 13 is blown only to the left duct 25L, with the blast volume for the left duct 25L 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 left duct 25L into the blowing cylinder 29 flows from the left to the right inside the blowing cylinder 29, as shown in FIG. Due to the pressure difference between the inside and the outside of the air outlet 29, the air flow is changed to a diagonally rightward flow directed toward the air outlet 27 by the air outlet 27, and the air is blown obliquely rightward from the air outlet 9 through the air outlet 27. In this way, the direction of the wind blown from the blower opening 9 is directed to the rightmost.

  In addition, when an input signal for setting the wind direction to the center in the left-right direction is input from the wind direction input unit, the air blower 15 is supplied by the air volume control unit 23 to the air flow strength to the left duct 25L and to the right duct 25R. The amount of air blown to the left duct 25L and the right duct 25R is set so that the blow strength is the same level.

  In this case, the conditioned air introduced into the blowout cylinder 29 from the left duct 25L and the right duct 25R is caused by the pressure difference between the inside and the outside of the blowout cylinder 29, as shown in FIG. The air is guided to the air outlet 27 side and blown out from the air outlet 9 through the air outlet 27. In the process, the conditioned air introduced from the left duct 25L into the blowout cylinder 29 and the conditioned air introduced from the right duct 25R into the blowout cylinder 29 collide at the outlet 27 and the vicinity thereof. Join together. At this time, the conditioned air introduced from the left duct 25L and the conditioned air introduced from the right duct 25R are blown out from the blower opening 9 toward the center in the left-right direction because the blowing intensity is the same level. In this way, the direction of the wind blown from the blower port 9 is directed to the center in the left-right direction.

  In addition, when an input signal for setting a wind direction other than the above in the left-right direction is input from the wind direction input unit, the air blower 15 is supplied to the left duct 25L by the air volume control unit 23 and to the right duct 25R. The amount of air blown to the left duct 25L and the right duct 25R is set so that the relationship with the blow strength is balanced according to the input signal. Thereby, the direction of the air blown from the air blowing port 9 is directed in a predetermined direction in the left-right direction.

  As described above, the blower 15 adjusts the direction of the wind blown from the blower opening 9 in the vertical direction by operating the rotation operation of the movable partition plate 39 by the rotation operation unit 42, and the left side by the air volume control unit 23. By individually controlling the amount of air blown to the duct 25L and the right duct 25R, the direction of the air blown from the blower port 9 can be adjusted in the left-right direction. Further, according to the combination of the wind direction control in the up and down direction and the left and right direction, the direction of the air blown from the air blowing port 9 is changed to the middle direction between the up and down direction and the left and right direction, that is, the upper left direction, the upper right direction, the lower left direction and the right It can also be adjusted downward.

-Effect of the embodiment-
According to this embodiment, since the air blowing port 9 is provided at a position away from the upper end in the inclined portion 7 of the rear wall 5 of the instrument panel 1, the air blowing port 9 is difficult to be noticed by the passenger. In addition, since the air blowing port 9 has a simple structure with only an opening, the air blowing port 9 is not conspicuous, and even if it enters the field of view of the occupant, attention is not drawn.

  Moreover, according to this embodiment, the flow of the conditioned air blown upward from the air blowing port 9 is converted into an air flow along the inclined portion 7 of the instrument panel 1 using the Coanda effect, and is guided toward the vertical direction. Since it did in this way, even if the ventilation opening 9 is set in the position away from the upper end part of the inclination part 7, it can avoid that the face of the front seat passenger | crew H is directly exposed to the wind from the ventilation opening 9. . Then, after the airflow guided toward the vertical direction in this way is peeled off from the instrument panel 1 at the portion above the inclined portion 7 in the rear wall 5 of the instrument panel 1, it is made to follow the ceiling surface 103 a of the vehicle. Because it is sent to the rear seat side, it can create an airflow that flows over the head of the front seat occupant H to the rear seat side, efficiently circulates the air in the passenger compartment, and efficiently regulates the air Can do.

  Moreover, since the cylindrical blowing structure 21 and the air duct 19 constituting the air blower 15 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 it has been difficult to install conventionally. It can also be installed on the back side of the instrument panel 1 in front of the passenger seat.

  In the above embodiment, the blowing cylinder 29 has a cylindrical shape and has a circumferential inner peripheral surface 29a. However, the present invention is not limited thereto, and the blowing cylinder 29 has a cylindrical shape. The inner peripheral surface 29a has a cylindrical shape in which at least the rear side portion (the vehicle front side portion) corresponding to the air outlet 27 is formed in a circular shape, and the movable partition plate 39 can be rotated. It is only necessary to allow the outer end of the movable partition plate 39 along the circumferential surface 29a.

  Moreover, in the said embodiment, although demonstrated taking the example of the structure which rotates the movable partition plate 39 using the motive power of the motor 57, it is not restricted to this but for rotating the rotating shaft 35 instead of the motor 57. An operation lever may be provided as a rotation operation means, and the movable partition plate 39 may be manually rotated using the operation lever.

  Moreover, in the said embodiment, both ends of the blowing cylinder 29 are open | released, and conditioned air is introduce | transduced into the inside of the blowing cylinder 29 from each duct 25 connected to the both open ends of the blowing cylinder 29, and at least one of them The configuration in which the direction of the air blown from the air blowing port 9 can be changed in the left-right direction by changing the amount of air blown from the duct 25 to the inside of the blowing cylinder 29 by the air volume control unit 23 has been described as an example. However, the present invention is not limited to this, and the blowout cylinder 29 may be one in which only one end is opened and the other end is closed, and the blowout cylinder 29 is connected from the duct 25 connected to one open end of the blowout cylinder 29. It is also possible to adopt a configuration in which conditioned air is introduced into the interior and the direction of the air blown from the blower opening 9 is changed only in the vertical direction by the rotating operation of the movable partition plate 39.

  In the above embodiment, the rotation direction shaft 35, the bearing portion 37, the movable partition plate 39, and the fixed partition plate 41 are described as an example of the wind direction control member 24. Not only this but the wind direction control member 24 does not need to be provided with a fixed partition plate, and if it controls the direction of the wind blown from a blower port in an up-and-down direction, it will be by rotation operation of a movable partition plate. It does not need to control the wind direction. For example, the wind direction control member 24 may be a cylindrical inner cylinder that is rotatably provided inside the blowing cylinder and forms a double cylinder structure with the blowing cylinder 29.

  Specifically, both ends of the inner cylinder are opened, and conditioned air introduced into the blowout cylinder 29 is introduced into the inside as it is from both open ends. A portion of the peripheral wall of the inner cylinder corresponding to the rear side of the air outlet 27 is provided with a flat (slit shape) internal air outlet that is elongated in the left-right direction corresponding to the air outlet 27. . The rotation operation means 42 is configured to be able to operate the rotation operation of the inner cylinder instead of the rotation operation of the movable partition plate. And the air blower 15 can change the direction of the wind blown from the blower outlet 9 through the blower outlet 27 in the up-down direction by rotating the inner cylinder body by the rotation operation means 42 and changing the direction of the internal blower outlet. It may be.

  Moreover, in the said embodiment, although the left side duct 25L is located in the front side of the cylindrical blowing structure 21, it is not restricted to this, The upper side or lower side of the same structure 21 along the cylindrical blowing structure 21 May be located. According to such a configuration, the space in the vehicle front-rear direction necessary for installation of the cylindrical blowout structure 21 and the air duct 19 is further reduced, and for example, the degree of freedom of layout of peripheral components such as the airbag device on the passenger seat side is reduced. Can be increased.

  Moreover, in the said embodiment, although the air volume control part 23 was equipped with the damper which adjusts the ventilation volume with respect to the left duct 25L and the right duct 25R, what can control the ventilation volume with respect to the left duct 25L and the right duct 25R separately. If so, the amount of air blown to both the ducts 25 may be adjusted by something other than the damper.

  Moreover, in the said embodiment, although the cylindrical blowing structure 21 was installed in the front side of a passenger seat, it is not restricted to this, The cylindrical blowing structure 21 does not require large installation space as above-mentioned. Therefore, it is also possible to install in the instrument panel 1 on the front side of the driver's seat.

  As described above, the present invention is useful for a blower device for a vehicle, and in particular, a blower device that is desired to improve the design of an instrument panel and to efficiently circulate air in a vehicle compartment. Suitable for

S Car interior space 1 Instrument panel 5 Rear wall 7 Inclined part 9 Air outlet 19 Air duct (air passage part)
25L Left side duct 25R Right side duct 24 Wind direction control member 27 Air outlet 29 Air outlet cylinder (air outlet part)
29a Inner peripheral surface 35 Rotating shaft 37 Bearing portion 39 Movable partition plate 41 Fixed partition plate 42 Rotating operation means 53 Driven gear 55 Drive gear 57 Motor 103a Ceiling surface

Claims (3)

A vehicle blower for blowing air from a blower opening (9) provided in an instrument panel (1) to a vehicle interior space (S),
The air blowing port (9) is provided in a rear wall (5) facing the vehicle rear of the instrument panel (1),
The rear wall (5) of the instrument panel (1) has an inclined part (7) extending obliquely upward toward the rear of the vehicle on the upper side of the air blowing port (9),
The flow of air blown upward from the air blowing port (9) is an air flow along the inclined portion (7) due to the Coanda effect, and the rear wall (5) is above the inclined portion (7). The air blower characterized in that the air blower is sent to the rear seat side along the ceiling surface (103a) of the vehicle after being partially peeled from the instrument panel (1). The blower device according to claim 1,
A cylindrical air outlet (29) provided on the peripheral wall with an outlet (27) connected to the air outlet (9) of the instrument panel (1);
An air passage portion (19) connected to at least one side of the air blowing portion (29) in the cylinder length direction, for introducing air into the air blowing portion (29);
An air source (17) for blowing air to the air passage portion (19),
The air blowing part (29) is installed in the instrument panel (1) in a posture along the cylinder length direction along the vehicle width direction,
Inside the air blowing part (29), the direction of the air blown from the blower opening (9) through the blower outlet (27) is set in a direction orthogonal to the tube length direction of the air blowing part (29). A blower characterized in that a wind direction control member (24) for changing is provided. The blower device according to claim 2,
Of the inner peripheral surface (29a) of the air blowing part (29), at least a portion corresponding to the blower outlet (27) is formed in a circular shape, and the wind direction control member (24) is formed of the air blowing part (29). A rotary shaft (35) inserted through the rotary shaft (35), and a rotary shaft (35) rotatably supported by the rotary shaft (35). A movable partition plate (39) that partitions across the circumferential surface (29a),
A rotation operation means (42) for operating the rotation of the movable partition plate (39);
By rotating the movable partition plate (39) by the rotation operation means (42) and moving the partition position inside the air blowing portion (29) by the movable partition plate (39), 27) A blower characterized in that the direction of the wind blown from the blower opening (9) through 27) is changed in a direction orthogonal to the cylinder length direction of the air blowing part (29).

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