JP6331955B2 - Blower - Google Patents

Description

  The present invention relates to a blower that supplies an air flow to a cabin of a vehicle.

  2. Description of the Related Art Conventionally, a blower that is provided in a cabin of a vehicle and supplies an air flow to the rear side of the vehicle is known. In order to supply an air flow to passengers at different positions in the vehicle front-rear direction, such as when a plurality of rows of seats are provided in the cabin, various methods are used to change the direction of the air flow blown from the blower outlet of the blower It is being considered to change.

  For example, Patent Literature 1 below describes a blower provided in a cabin ceiling. In this blower, the air flow blown out from the first air outlet flows along the outer side surface of the duct due to the Coanda effect, and travels toward the vehicle rear side while merging with the surrounding air drawn in. As a result, the air flow is supplied to the cabin in a state where the flow rate is increased as compared with the case where the air flow is blown out from the first air outlet.

  Moreover, the air blower described in the following patent document 1 is provided with the 2nd blower outlet which blows off air separately from the 1st blower outlet. A 2nd blower outlet blows off an air flow so that the air which a 1st blower outlet blows out may join from upper direction. This blower can change the direction of the air flow in the vehicle front-rear direction by changing the balance of the flow rate of the air flow blown out from each of the first air outlet and the second air outlet.

International Publication No. 2013/145172

  In the blower described in Patent Document 1, although the direction of the air flow in the vehicle front-rear direction can be changed, the air flow cannot be simultaneously supplied to passengers at different positions in the vehicle front-rear direction.

  The present invention has been made in view of such a problem, and an object of the present invention is to provide a blower capable of supplying an air flow having a sufficient flow rate to passengers at different positions in the vehicle front-rear direction. There is.

  In order to solve the above problems, a blower according to the present invention is a blower (10, 10A, 10B, 10C, 10D, 10E) that supplies an air flow to a cabin (VC) of a vehicle (VH), A blower (112) that generates an air flow, and a guide surface that extends in the left-right direction of the vehicle and that the air flow generated by the blower is introduced into the interior, and at least a part of its outer surface flows along the air flow ( GS) and ducts (12, 12A, 12D, 12E) and a slit formed in the duct, the longitudinal direction of which is the left-right direction of the vehicle, and the rear of the vehicle along the guide surface with the air flow inside the duct And air outlets (120, 120B, 120C, 120D, 120E) that blow out to the side. A blower outlet is the 1st blower part (121, 121B, 121C, 121D, 121E) which is a site | part near a fan, and the 2nd blower part (122,122B, 122C, which is a site | part far from a fan from a 1st blower part. 122D, 122E). The second blowing section blows out the second air flow (F21, F22, F23, F24, F25) supplied to the second position of the cabin, and the first blowing section has a second flow velocity larger than that of the second air flow. The first air flow (F11, F12, F13, F14, F15) supplied to the first position on the vehicle rear side of the position is blown out.

  In the blower according to the present invention, the flow velocity of the blown air flow differs depending on the portion of the blowout port. That is, the flow rate of the first air flow blown from the first blowing portion that is a portion relatively close to the blower is larger than the second air flow blown from the second blowout portion that is a portion relatively far from the blower. It is configured as follows.

  Therefore, according to the air blower according to the present invention, the second air flow having a relatively low flow rate is directed to the second position on the vehicle front side, and the first air flow having a relatively high flow rate is directed to the first position on the vehicle rear side. The air flow having a sufficient flow rate can also be supplied to the first position. As a result, it is possible to simultaneously supply an air flow having a sufficient flow rate to passengers at different positions in the vehicle longitudinal direction.

  ADVANTAGE OF THE INVENTION According to this invention, the air blower which can supply the airflow of sufficient flow volume simultaneously to the passenger | crew who exists in a different position in the vehicle front-back direction can be provided.

It is the schematic diagram which looked at the vehicle provided with the air blower concerning 1st Embodiment of this invention from the left. It is the schematic diagram which looked at the vehicle provided with the air blower concerning 1st Embodiment of this invention from upper direction. It is the schematic diagram which looked at the air blower concerning 1st Embodiment of this invention from the downward direction. It is sectional drawing which shows the IV-IV cross section of FIG. It is sectional drawing which shows the VV cross section of FIG. It is sectional drawing which shows the VI-VI cross section of FIG. It is sectional drawing equivalent to FIG. 6 of the air blower which concerns on the modification of 1st Embodiment of this invention. It is the schematic diagram which looked at the air blower concerning 2nd Embodiment of this invention from the downward direction. It is sectional drawing which shows the IX-IX cross section of FIG. It is the schematic diagram which looked at the air blower which concerns on 3rd Embodiment of this invention from the downward direction. It is the schematic diagram which looked at the air blower which concerns on 4th Embodiment of this invention from the downward direction. It is the schematic diagram which looked at the air blower which concerns on 5th Embodiment of this invention from the downward direction.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

  First, an outline of the air blower 10 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

  The blower 10 is attached to the ceiling VL of the cabin VC of the vehicle VH. The blower device 10 includes a blower unit 11, two ducts 12 and 12, and two outer flaps 141 and 141. The cabin VC is provided with sheets S1, S2, and S3 in the first to third rows. The blower 10 is disposed above the heads of the occupants P1, P2, P3 seated on the seats S1, S2, S3.

  In the following description, the front-rear direction, the left-right direction, and the up-down direction refer to the front-rear direction, the left-right direction, and the up-down direction when the occupants P1, P2, P3 face the forward direction of the vehicle VH, respectively. Shall.

  The blower unit 11 is a device that generates an air flow, and includes a case 111, a blower 112, and a branch body 113 as shown in FIG. 3.

  The case 111 has an outer shape formed in a substantially cylindrical shape, and is arranged at the center of the cabin VC in the left-right direction. A suction port 111 a that communicates the inside and outside of the case 111 is formed at the front end of the case 111. In addition, a pair of air outlets 111b and 111b communicating with the inside and outside of the case 111 are formed on the left and right side surfaces of the case 111, respectively.

  The blower 112 is an electric blower that generates an air flow, and is housed in the case 111. The blower 112 has a centrifugal multiblade fan (not shown) inside. As the centrifugal multiblade fan rotates, the air in the cabin VC is sucked in through the suction port 111a of the case 111 and blown out from the blower outlet 112a of the blower 112 to the rear side.

  The branch body 113 is a T-shaped member that extends from the front end portion to the rear side, branches to the left and right in the middle, and extends to the rear end portion. The branch body 113 is accommodated in the case 111, and the branch channel 113 a is partitioned in the case 111. The branch body 113 has a front end connected to the air outlet 112 a of the blower 112 and a rear end connected to the pair of air outlets 111 b and 111 b of the case 111. Thereby, the airflow blown out from the blower outlet 112a of the blower 112 is introduced into the branch flow path 113a, is divided into right and left, and is supplied to the blower outlets 111b and 111b of the case 111.

  The ducts 12 and 12 are provided on both the left and right sides of the blower unit 11, respectively. The ducts 12 and 12 are hollow members formed so as to extend linearly from the blower unit 11 side toward the end of the cabin VC in the left-right direction. The ends of the ducts 12, 12 on the air blowing unit 11 side are connected to the air outlet 111 b of the case 111. Since the ducts 12 and 12 are formed substantially symmetrically in the left-right direction, the right duct 12 will be described below as an example.

  A slit-like air outlet 120 having a longitudinal direction in the left-right direction is formed on the lower surface 127 of the duct 12 and near the front end of the duct 12. The blower outlet 120 includes a first blower 121 that is a part near the blower 112 and a second blower 122 that is a part farther from the blower 112 than the first blower 121 in the left-right direction. The outlet 120 is a single opening in which the first outlet 121 and the second outlet 122 are connected.

  The outer side flap 141 is a flat plate-like member whose dimension in the left-right direction is smaller than that of the air outlet 120. The outer flap 141 is disposed outside the duct 12 and on the rear side of the second blowing part 122. The outer flap 141 is supported at one end on the duct 12 side by a rotating shaft 140 (see FIG. 4) extending substantially horizontally in the left-right direction. Thereby, the outer side flap 141 is rotatable about the rotation axis 140, and can be stopped at an arbitrary position.

  Next, a detailed configuration of the duct 12 of the blower 10 according to the first embodiment will be described with reference to FIGS. 2 to 6.

  As shown in FIGS. 4 and 5, the air outlet 120 is formed in the lower surface 127 of the duct 12 at a portion below the duct internal flow path 128, and communicates with the inside and outside of the duct internal flow path 128. Yes. The wall surface of the duct 12 is curved so that the end on the rear side of the air outlet 120 enters the inside of the duct internal flow path 128. As a result, a throttle channel 125 that communicates with the air outlet 120 is formed between the wall surface 124a and the wall surface 124b of the duct 12 that are spaced apart from each other. The throttle channel 125 gradually decreases in cross-sectional area from the inlet 125a toward the outlet 120. In the throttle channel 125, the cross-sectional area of the first communication part 1251 (see FIG. 4) communicating with the first blowing part 121 is the same as that of the second communication part 1252 (see FIG. 5) communicating with the second blowing part 122. It is smaller than the cross-sectional area.

  As shown in FIG. 6, five guide vanes 126 are provided in the in-duct flow path 128 so as to be linearly arranged in the left-right direction at intervals. The guide vane 126 includes three first guide vanes 1261 disposed near the center of the cabin VC and two second guide vanes 1262 disposed near the end of the cabin VC in the left-right direction.

  Each of the first guide vane 1261 and the second guide vane 1262 is curved so that its rear end portion faces the air blowing unit 11 side and its front end portion faces the inlet 125a side of the throttle channel 125, and is circular in a plan view. A plate-like member having an arc-shaped outer surface. The first guide vane 1261 has a dimension in the front-rear direction larger than that of the second guide vane 1262. Further, the first guide vane 1261 and the second guide vane 1262 are provided on the upstream side of the air outlet 120 of the duct 12 so that the front ends thereof overlap with the inlet 125a of the throttle channel 125 in a plan view. .

  In addition, the first guide vane 1261 and the second guide vane 1262 are each formed with a columnar rotation shaft 133 protruding in the vertical direction at the upper end and the lower end. The upper and lower ends of each rotating shaft 133 are supported by the wall surface of the duct internal flow path 128. As a result, both the first guide vane 1261 and the second guide vane 1262 are rotatable about the respective rotation shafts 133.

  The airflow generated by the blower 112 is introduced into the duct 12 through the air outlet 111 b of the case 111. The airflow flowing through the duct internal flow path 128 inside the duct 12 has forward and rightward flow velocity components. However, when the guide vane 126 is in the state shown in FIG. 6, the air flow flows along the outer surface of the guide vane 126 and loses the flow velocity component in the right direction. Thereby, the direction of the air flow is changed to a direction substantially parallel to the front-rear direction, and is guided to the inlet 125 a of the throttle channel 125.

  The air flow guided to the inlet 125 a flows through the throttle channel 125 toward the outlet 120, so that the flow velocity is increased. The air flow in the duct internal flow path 128 flows into the inlet 125a in a direction substantially parallel to the front-rear direction. Therefore, due to inertia, the air flow passes through the throttle flow path 125 while remaining in the direction substantially parallel to the front-rear direction. It is blown out to the rear side. Therefore, the direction of the air flow blown backward from the blower outlet 120 is substantially parallel to the front-rear direction. The air flow blown from the blower outlet 120 becomes a first air flow F11 blown from the first blower part 121 and a second air flow F21 blown from the second blower part 122.

  The first air flow F11 and the second air flow F21 blown rearward from the air outlet 120 first flow along the lower surface 127 of the duct 12 by the Coanda effect. That is, the lower surface 127 of the duct 12 and the lower surface 141a of the outer flap 141 described later constitute a guide surface GS that flows along the air flow.

  When the 1st air flow F11 and the 2nd air flow F21 are blown out from the blower outlet 120, ambient air will be drawn in and the secondary air flow F41 and F51 will be formed. As a result, the first air flow F11 and the second air flow F21 merge with the secondary air flows F41 and F51, and flow toward the rear side along the lower side surface 127 of the duct 12 while increasing their flow rates.

  Here, as described above, the first blowing part 121 is provided on the blower 112 side, which is upstream of the second blowing part 122 in the duct internal flow path 128. For this reason, compared with the air flow supplied to the 2nd blowing part 122, a pressure loss does not arise easily in the process supplied from the air blower 112 with respect to the air flow supplied to the 1st blowing part 121. FIG. Therefore, the pressure of the air flow supplied to the first blowing unit 121 is higher than the pressure of the air flow supplied to the second blowing unit 122.

  Of the five guide vanes 126, the first guide vane 1261 is larger in the front-rear direction than the second guide vane 1262. As a result, the first guide vane 1261 causes more air flow than the second guide vane 1262 to flow along the outer surface thereof and guides it to the first communication portion 1251. For this reason, the first guide vane 1261 acts to increase the pressure of the air flow supplied to the first blowing part 121 higher than the pressure of the air flow supplied to the second blowing part 122.

  Furthermore, the cross-sectional area of the 1st communication part 1251 connected to the 1st blowing part 121 among the throttle flow paths 125 is smaller than the cross-sectional area of the 2nd communication part 1252 connected to the 2nd blowing part 122. For this reason, the air flow supplied to the first blowing part 121 through the first communication part 1251 has a pressure higher than the air flow passing through the second communication part 1252 and supplied to the second blowing part 122. Rise.

  As described above, the flow velocity of the first air flow F11 blown out from the first blow-out portion 121 is increased by increasing the pressure of the air flow supplied to the first blow-out portion 121 of the blow-out opening 120. It becomes larger than the flow velocity of the second air flow F21 blown out from the portion 122.

  As shown in FIGS. 2 to 4, after the first air flow F <b> 11 blown to the rear side from the first blowing part 121 of the blower outlet 120 flows along the lower surface 127 of the duct 12 due to the Coanda effect, It further flows to the rear side of the duct 12 in the direction along the lower side surface 127. The first air flow F11 flows through a portion near the center of the cabin VC in the left-right direction, and is supplied to a position (first position) where the passenger P3 is present.

  On the other hand, as shown in FIGS. 2, 3, and 5, the second air flow F <b> 21 blown rearward from the second blow-out part 122 of the blow-out opening 120 extends along the lower surface 127 of the duct 12 due to the Coanda effect. Then flow along the lower surface 141a of the outer flap 141. The direction of the second air flow F21 is changed to the front side by the outer side flap 141 that inclines so as to extend downward, and is supplied to the position (second position) where the occupant P2 is present.

  Thus, as for the air blower 10 which concerns on 1st Embodiment, the flow velocity of the airflow which blows off changes with the site | parts of the blower outlet 120. FIG. That is, the first air flow F11 blown out from the first blowing part 121 that is a part relatively close to the blower 112 is the second air flow F21 blown out from the second blowing part 122 that is a part relatively far from the blower 112. It is comprised so that a flow rate may become larger than.

  Therefore, according to the air blower 10 according to the first embodiment, the occupant P3 directs the second air flow F21 having a relatively small flow velocity toward the position where the occupant P2 is present and the first air flow F11 having a relatively large flow velocity. By directing to the position where it exists, it is possible to supply an air flow having a sufficient flow rate to the occupant P3. Thereby, it becomes possible to simultaneously supply an air flow having a sufficient flow rate to the passengers P2 and P3 located at different positions in the front-rear direction.

  Next, 10A of air blowers which concern on the modification of 1st Embodiment of this invention are demonstrated, referring FIG.

  10 A of air blowers differ in the structure inside the duct 12A from the duct 12 of the air blower 10 which concerns on 1st Embodiment mentioned above. Therefore, the same components as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted as appropriate.

  In the duct internal flow path 128A inside the duct 12, five second guide vanes 1262 are provided in a straight line in the left-right direction at intervals. The five second guide vanes 1262 act so as to flow an air flow along the outer side surface thereof and guide them to the first blowing portion 121 and the second blowing portion 122 of the outlet 120.

  Further, the duct 12A has a wall body 129 in the in-duct flow path 128A. The wall body 129 is formed so as to protrude forward in the left-right direction so that the boundary between the first blowing portion 121 and the second blowing portion 122 is a vertex.

  By providing such a wall body 129 in the duct internal flow path 128 </ b> A of the duct 12 </ b> A, the air flow introduced from the blower 112 to the duct internal flow path 128 </ b> A flows along the wall body 129. As a result, most of the air flow in the duct internal flow path 128 </ b> A is guided to the first outlet 121 of the outlet 120. That is, the pressure of the airflow supplied to the first outlet 121 of the outlet 120 is higher than that of the airflow supplied to the second outlet 122.

  As described above, the flow velocity of the first air flow F11 blown out from the first blow-out portion 121 is increased by increasing the pressure of the air flow supplied to the first blow-out portion 121 of the blow-out opening 120. It becomes a thing larger than the flow velocity of the 2nd airflow F21 which blows off from the part 122. FIG.

  Therefore, the air blower 10A according to the modified example of the first embodiment also directs the second air flow F21 having a relatively small flow velocity toward the position where the occupant P2 is present, and causes the first air flow F11 having a relatively large flow velocity to be occupant P3. By directing to the position where there is, an air flow having a sufficient flow rate can be supplied to the passenger P3. Thereby, it becomes possible to simultaneously supply an air flow having a sufficient flow rate to the passengers P2 and P3 located at different positions in the front-rear direction.

  Next, an air blower 10B according to a second embodiment of the present invention will be described with reference to FIGS. The air blower 10B according to the second embodiment is different in configuration from the air blower 10 according to the first embodiment described above in terms of the outlet 120B, the inner flap 142, the intermediate flap 143, and the outer flap 144. Therefore, about the same structure as the air blower 10 mentioned above, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  A slit-like air outlet 120B having a longitudinal direction in the left-right direction is formed on the lower surface 127 of the duct 12 of the blower 10B and closer to the front end of the duct 12. The outlet 120B has a first outlet 121B that is a part near the blower 112, a third outlet 123B that is a part near the end of the cabin VC, a first outlet 121B, and a third outlet in the left-right direction. A second blowing part 122B that is a part between the part 123B and the second blowing part 122B. Further, the outlet 120B is a single opening in which the first outlet 121B, the second outlet 122B, and the third outlet 123B are connected.

  Each of the inner flap 142, the intermediate flap 143, and the outer flap 144 is a flat plate-like member whose dimensions in the left-right direction are smaller than those of the outlet 120B. Further, the sum of the dimensions in the left-right direction of the inner flap 142 and the outer flap 144 is set to be larger than the dimension in the left-right direction of the intermediate flap 143.

  The inner flap 142, the intermediate flap 143, and the outer flap 144 are all arranged outside the duct 12, and one end portion on the duct 12 side is supported by a rotating shaft 140 extending substantially horizontally in the left-right direction. . Thereby, the inner side flap 142, the intermediate | middle flap 143, and the outer side flap 144 can be rotated centering on the rotating shaft 140, and can be made still at arbitrary positions.

  The inner side flap 142 is arrange | positioned at the back of the 1st blowing part 121B. Moreover, the intermediate | middle flap 143 is arrange | positioned at the back of the 2nd blowing part 122B. Furthermore, the outer side flap 144 is arrange | positioned at the back of the 3rd blowing part 123B.

  The air flow in the duct internal flow path 128 flows into the inlet 125a in a direction substantially parallel to the front-rear direction. Therefore, due to inertia, the air flow passes through the throttle flow path 125 while maintaining the direction substantially parallel to the front-rear direction, and the air flow in the duct 12 It blows out backward from the outlet 120B. Therefore, the direction of the air flow blown backward from the blower outlet 120B is substantially parallel to the front-rear direction. The air flow blown out from the air outlet 120B is blown out from the first air flow F12 blown out from the first blowout portion 121B, the second air flow F22 blown out from the second blowout portion 122B, and the third blowout portion 123B. And the third air flow F32.

  When the first air flow F12, the second air flow F22, and the third air flow F32 are blown out from the outlet 120B, the surrounding air is drawn to form secondary air flows F42, F52, and F62. As a result, the first air flow F12, the second air flow F22, and the third air flow F32 merge with the secondary air flows F42, F52, and F62, and the flow rate increases along the lower surface 127 of the duct 12. Flows backward.

  The 1st blowing part 121B nearest to the air blower 112 among the blower outlets 120B is comprised so that the pressure of the supplied airflow may increase compared with the 2nd blowing part 122B or the 3rd blowing part 123B. Moreover, the 2nd blowing part 122B nearer to the air blower 112 than the 3rd blowing part 123B is comprised so that the pressure of the airflow supplied from the 3rd blowing part 123B may increase.

  Accordingly, the first air flow F12 blown out from the first blowing part 121B is more than the second air flow F22 blown out from the second blowing part 122B or the third air flow F32 blown out from the third blowing part 123B. The flow rate increases. Furthermore, the flow rate of the second air flow F22 is greater than that of the third air flow F32.

  The first air flow F12 blown rearward from the first blowing portion 121B of the blower outlet 120B flows along the lower side surface 127 of the duct 12 due to the Coanda effect, and then along the lower side surface 142a of the inner flap 142. Flowing. When the inner flap 142 is in the state shown in FIG. 9, the first air flow F12 flows further rearward in the direction along the lower side surface 142a. As a result, the first air flow F12 flows through the portion near the center of the cabin VC in the left-right direction and is supplied to the position where the occupant P3 is present.

  On the other hand, the second air flow F22 blown rearward from the second blowing portion 122B of the blower outlet 120B flows along the lower side 127 of the duct 12 due to the Coanda effect, and then the lower side 143a of the intermediate flap 143. Flowing along. The direction of the second air flow F22 is changed to the front side by the intermediate flap 143 that is inclined so as to extend downward, and is supplied to the position where the occupant P2 is present.

  The third air flow F32 blown rearward from the third blowing portion 123B of the blower outlet 120B flows along the lower surface 127 of the duct 12 due to the Coanda effect, and then along the lower surface 144a of the outer flap 144. Flowing. The direction of the third air flow F32 is changed slightly forward by the outer flap 144 that is inclined so as to extend slightly downward. As a result, the third air flow F32 flows along the end of the cabin VC in the left-right direction, and is supplied to the position where the passenger P3 is present.

  According to the air blower 10B according to the second embodiment of the present invention as described above, the first air flow F12 that flows through the portion near the center of the cabin VC in the left-right direction and the second airflow that flows along the end of the cabin VC. 3 air flows F32 can be supplied to the passenger P3. That is, the first air flow F12 and the third air flow F32 can supply an air flow having a sufficient flow rate so as to wrap the occupant P3 from the left and right.

  Since the third air flow F32 flows along the end of the cabin VC, the third air flow F32 can be supplied to the position where the occupant P3 is present relatively easily without being diffused. Therefore, when the flow velocity of the third air flow F32 is sufficiently large, the third air flow F32 can be supplied without using the outer flap 144. That is, the third air flow F32 that flows along the lower surface 127 of the duct 12 is not directly along the lower surface 144a of the outer flap 144, and then directly from the rear end of the lower surface 127 to the position where the occupant P3 is present. It may be supplied by flowing.

  The sum of the dimensions in the left-right direction of the inner flap 142 and the outer flap 144 that direct the airflow blown out from the outlet 120B toward the occupant P3 is set larger than the dimension in the left-right direction of the intermediate flap 143 that directs the airflow toward the occupant P2. ing. As a result, it is possible to supply airflow preferentially to the occupant P3 on the rear side, and simultaneously supply airflow of a sufficient flow rate to the occupants P2, P3 located at different positions in the front-rear direction.

  Further, when the occupant is present in only one of the second row seat S2 and the third row seat S3 of the cabin VC, the positions of the rotatable inner flap 142, intermediate flap 143, and outer flap 144 are appropriately changed. , All airflow can be set to be supplied to the occupant. That is, it is possible to suppress the waste of supplying the airflow toward the seat where no passenger is present.

  Next, a blower 10C according to a third embodiment of the present invention will be described with reference to FIG. The blower 10 </ b> C according to the third embodiment is different from the blower 10 according to the first embodiment described above in terms of the outlet 120 </ b> C, the inner flap 145, and the outer flap 146. Therefore, about the same structure as the air blower 10 mentioned above, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  A slit-like air outlet 120 </ b> C whose longitudinal direction is the left-right direction is formed on the lower surface 127 of the duct 12 of the blower 10 </ b> C and near the front end of the duct 12. 120 C of this blower outlet consists of the 1st blower part 121C which is a site | part close | similar to the air blower 112 in the left-right direction, and the 2nd blower part 122C which is a site | part farther from the air blower 112 than the 1st blower part 121C. In addition, the outlet 120C is a single opening in which the first outlet 121C and the second outlet 122C are connected.

  Each of the inner flap 145 and the outer flap 146 is a flat plate-like member whose dimension in the left-right direction is smaller than that of the outlet 120B. The inner side flap 145 is arrange | positioned at the back side of the 1st blowing part 121C. Moreover, the outer side flap 146 is arrange | positioned at the back side of the 2nd blowing part 122C.

  The inner side flap 145 is provided so as to extend from the center side to the end side of the cabin VC in the left-right direction. That is, the rear end portion of the inner flap 145 is provided so as to be inclined in the front-rear direction.

  When the first air flow F13 is blown from the first blowing part 121C of the blower outlet 120C and the second air flow F23 is blown from the second blowing part 122C, the surrounding air is drawn in and the secondary air flows F43 and F53. Is formed. As a result, the first air flow F13 and the second air flow F23 merge with the secondary air flows F43 and F53, and flow toward the rear side along the lower side surface 127 of the duct 12 while increasing their flow rates.

  Of the outlet 120C, the first outlet 121C close to the blower 112 is configured to increase the pressure of the supplied airflow as compared to the second outlet 122C. Therefore, the flow rate of the first air flow F13 blown from the first blowing part 121C is larger than that of the second air flow F23 blown from the second blowing part 122C.

  The first air flow F13 blown rearward from the first blowing portion 121C of the outlet 120C flows along the lower side 127 of the duct 12 due to the Coanda effect, and then along the lower side 145a of the inner flap 145. Flowing. When the first air flow F13 flows along the inner flap 145, the direction of the first air flow F13 changes so as to flow toward the end of the cabin VC in the left-right direction. As a result, the first air flow F13 flows through the portion near the center of the cabin VC in the left-right direction, and is supplied to the position where the passenger P3 is present.

  On the other hand, the second air flow F23 blown rearward from the second blowing portion 122C of the blower outlet 120C flows along the lower side 127 of the duct 12 due to the Coanda effect, and then the lower side 146a of the outer flap 146. Flowing along. The direction of the second air flow F23 is changed to the front side by an outer flap 146 that is inclined so as to extend downward, and is supplied to a position where the occupant P2 is present.

  As described above, in the air blower 10C according to the third embodiment of the present invention, the first air flow F13 blown from the first blowout part 121C flows toward the end of the cabin VC in the left-right direction. Thereby, it becomes possible to simultaneously supply the occupant P3 with an air flow that spreads in a wide range in the left-right direction.

  Next, an air blower 10D according to a fourth embodiment of the present invention will be described with reference to FIG. The air blower 10D according to the fourth embodiment is different in configuration from the air blower 10 according to the first embodiment described above in terms of the duct 12D, the air outlet 120D, the inner flap 147, and the outer flap 148. Therefore, about the same structure as the air blower 10 mentioned above, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  The ducts 12 </ b> D and 12 </ b> D are provided on both the left and right sides of the blower unit 11, respectively. Ducts 12D and 12D are hollow members formed so as to extend linearly from the blower unit 11 side toward the end side of the cabin VC and toward the front side in the left-right direction. The ends of the ducts 12 </ b> D and 12 </ b> D on the air blowing unit 11 side are connected to the air outlet 111 b of the case 111. Since the ducts 12D and 12D are formed substantially symmetrically in the left-right direction, the right duct 12 will be described below as an example.

  A slit-like air outlet 120D having a longitudinal direction in the left-right direction is formed on the lower surface 127D of the duct 12D and closer to the front end of the duct 12D. The outlet 120D includes a first outlet 121D that is a part near the blower 112 and a second outlet 122D that is a part farther from the fan 112 than the first outlet 121D in the left-right direction. The outlet 120D is a single opening in which the first outlet 121D and the second outlet 122D are connected.

  The air outlet 120D is formed so as to extend along the direction in which the duct 12D extends. That is, in the left-right direction, the outlet 120D is formed such that the first outlet 121D, which is a part near the center of the cabin VC, is rearward of the second outlet 122D, which is a part near the end of the cabin VC. ing.

  Each of the inner side flap 147 and the outer side flap 148 is a flat plate-like member whose dimension in the left-right direction is smaller than that of the air outlet 120D. The inner side flap 147 is arrange | positioned at the back side of 1st blowing part 121D. Moreover, the outer side flap 148 is arrange | positioned at the back side of 2nd blowing part 122D.

  Here, both the inner side flap 147 and the outer side flap 148 are provided so as to extend from the central part side toward the end part side of the cabin VC in the left-right direction. That is, the rear end portions of the inner flap 147 and the outer flap 148 are provided so as to be inclined in the front-rear direction.

  When the first air flow F14 is blown out from the first outlet 121D of the outlet 120D and the second air flow F24 is blown out from the second outlet 122D, the surrounding air is drawn in and the secondary air flows F44, F54. Is formed. As a result, the first air flow F14 and the second air flow F24 merge with the secondary air flows F44 and F54, and flow rearward along the lower side surface 127 of the duct 12 while increasing their flow rates.

  Of the air outlet 120D, the first air outlet 121D close to the blower 112 is configured to increase the pressure of the supplied air flow as compared to the second air outlet 122D. Therefore, the flow rate of the first air flow F14 blown from the first blowing part 121D is larger than that of the second air flow F24 blown from the second blowing part 122D.

  The first air flow F14 blown rearward from the first outlet 121D of the outlet 120D flows along the lower side 127D of the duct 12D due to the Coanda effect, and then along the lower side 147a of the inner flap 147. Flowing. The direction of the first air flow F14 is changed by the inner flap 147 so as to flow toward the end of the cabin VC in the left-right direction. As a result, the first air flow F14 flows near the center of the cabin VC in the left-right direction and is supplied to the position where the passenger P3 is present.

  On the other hand, the second air flow F24 blown rearward from the second blowing portion 122D of the blower outlet 120D flows along the lower side 127D of the duct 12D due to the Coanda effect, and then the lower side 148a of the outer flap 148. Flowing along. The direction of the second air flow F24 is changed to the front side and the end side of the cabin VC in the left-right direction by the outer flap 148 that is inclined so as to extend downward. As a result, the second air flow F24 is supplied to the position where the passenger P2 is present.

  As described above, the air blower 10D according to the fourth embodiment of the present invention includes the first air flow F14 blown from the first blowing part 121D and the second air flow F24 blown from the second blowing part 122D. Are directed toward the end of the cabin VC in the left-right direction. Accordingly, it is possible to simultaneously supply the occupants P2 and P3 with an air flow that extends in a wide range in the left-right direction while reducing the size of the blower 10D in the left-right direction.

  Next, an air blower 10E according to a fifth embodiment of the present invention will be described with reference to FIG. The air blower 10E according to the fifth embodiment is the air blower 10 according to the first embodiment described above in terms of the air blowing unit 11E, the duct 12E, the air outlet 120E, the inner flap 149, and the outer flap 150. And the configuration is different. Therefore, about the same structure as the air blower 10 mentioned above, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  The blower unit 11E is a device that generates an air flow, and includes a case 111E, a blower 112, and an internal duct 113E.

  The case 111E has a substantially columnar outer shape, and is arranged at the center of the cabin VC in the left-right direction. A suction port 111Ea that communicates the inside and outside of the case 111E is formed at the front end of the case 111E. A single air outlet 111Eb that communicates the inside and outside of the case 111E is formed on the rear surface of the case 111E.

  The blower 112 is an electric blower that generates an air flow, and is accommodated in the case 111E. The blower 112 has a centrifugal multiblade fan (not shown) inside. As the centrifugal multiblade fan rotates, the air in the cabin VC is sucked in through the suction port 111Ea of the case 111E and blown out from the blower outlet 112a of the blower 112 toward the rear side.

  The internal duct 113E is a member that extends from the front end portion to the rear side, expands, and extends to the rear end portion. The internal duct 113E is accommodated in the case 111E, and defines an internal flow path 113Ea inside the case 111E. The internal duct 113E has a front end connected to the air outlet 112a of the blower 112 and a rear end connected to the air outlet 111Eb of the case 111E. Thereby, the airflow blown from the blower outlet 112a of the blower 112 is introduced into the internal duct 113E and supplied to the blower outlet 111Eb of the case 111E.

  The duct 12E is provided at the rear end of the blower unit 11E. The duct 12E is a hollow member formed so as to extend linearly from the blower unit 11E side toward the end of the cabin VC in the left-right direction. The end of the duct 12E on the air blowing unit 11E side is connected to the air outlet 111Eb of the case 111E.

  A slit-like outlet 120E having a longitudinal direction in the left-right direction is formed on the lower side 127E of the duct 12E near the front end and on the lower side of the case 111E so as to straddle both. The outlet 120E includes a first outlet 121E that is a part closer to the blower 112 and a second outlet 122E that is a part farther from the fan 112 than the first outlet 121E in the left-right direction. Further, the air outlet 120E is a single opening in which the first air outlet 121 and the second air outlet 122 are connected.

  When the first air flow F15 is blown from the first blowing part 121E of the outlet 120E and the second air flow F25 is blown from the second blowing part 122E, the surrounding air is drawn and the secondary air flows F45 and F55. Is formed. As a result, the first air flow F15 and the second air flow F25 merge with the secondary air flows F45 and F55, and flow toward the rear side along the lower side surface 127E of the duct 12E while increasing their flow rates.

  The 1st blowing part 121E near the air blower 112 among the blower outlets 120E is comprised so that the pressure of the supplied airflow may increase compared with the 2nd blowing part 122E. Therefore, the flow rate of the first air flow F15 blown out from the first blowing part 121E is larger than that of the second air flow F25 blown out from the second blowing part 122E.

  The first air flow F15 blown rearward from the first blowing part 121E of the blower outlet 120E flows along the lower side surface 127E of the case 111E and the lower side surface 127E of the duct 12E by the Coanda effect, and then the inner flap 149. It flows along the lower surface 149a. The first air flow F15 flows further rearward in the direction along the lower side surface 149a. As a result, the first air flow F15 flows through the portion near the center of the cabin VC in the left-right direction and is supplied to the position where the occupant P3 is present.

  On the other hand, the second air flow F25 blown rearward from the second blowing portion 122E of the blower outlet 120E flows along the lower side 127E of the duct 12E due to the Coanda effect, and then the lower side 150a of the outer flap 150. Flowing along. The direction of the second air flow F25 is changed to the front side by the outer flap 150 that is inclined so as to extend downward, and is supplied to the position where the occupant P2 is present.

  As described above, the air blower 10E according to the fifth embodiment of the present invention forms the air outlet 120E with the case 111E of the air blowing unit 11E, thereby reducing the size in the left-right direction and reducing the air flow to the occupant P2. And P3 can be supplied simultaneously.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. In other words, those specific examples that have been appropriately modified by those skilled in the art are also included in the scope of the present invention as long as they have the characteristics of the present invention. For example, the elements included in each of the specific examples described above and their arrangement, materials, conditions, shapes, sizes, and the like are not limited to those illustrated, but can be changed as appropriate. Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

10, 10A, 10B, 10C, 10D, 10E: Air blower 12, 12A, 12D, 12E: Duct 112: Air blower 120, 120B, 120C, 120D, 120E: Air outlet 121, 121B, 121C, 121D, 121E: First Air outlets 122, 122B, 122C, 122D, 122E: second air outlet 125: throttle passages 141, 144, 146, 148, 150: outer flaps 142, 145, 147, 149: inner flap 1261: first guide vane 1262 : Second guide vane GS: Guide surface VC: Cabin VH: Vehicle

Claims (13)

A blower (10, 10A, 10B, 10C, 10D, 10E) for supplying an air flow to a cabin (VC) of a vehicle (VH),
A blower (112) for generating an air flow;
A duct (12, 12A) that extends in the left-right direction of the vehicle and forms a guide surface (GS) in which an air flow generated by the blower is introduced into the vehicle and at least a part of its outer surface flows along the air flow. , 12D, 12E)
An air outlet (120, 120B, 120C, 120D, which is formed in the duct, has a slit shape with the vehicle left-right direction as a longitudinal direction, and blows the air flow inside the duct along the guide surface to the vehicle rear side. 120E), and
The outlet is a first outlet (121, 121B, 121C, 121D, 121E) that is a part closer to the blower, and a second outlet (122, 121) that is a part farther from the fan than the first outlet. 122B, 122C, 122D, 122E)
The second blowing section blows out a second air flow (F21, F22, F23, F24, F25) supplied to the second position of the cabin,
The first blowing portion has a first air flow (F11, F12, F13, F14, F15) that has a flow velocity greater than that of the second air flow and is supplied to the first position on the vehicle rear side of the second position. A blower characterized by blowing out. The blower is disposed near the center of the cabin in the vehicle left-right direction,
The blower according to claim 1, wherein the duct extends from the blower side toward the end of the cabin in the left-right direction of the vehicle. A flap (141, 141) is provided on the vehicle rear side of the duct, and at least a part of the outer surface thereof constitutes the guide surface, and changes the flow velocity component in the vehicle front-rear direction of the airflow blown out from the air outlet. 142, 143, 144, 145, 146, 147, 148, 149, 150),
The blower according to claim 2, wherein the flap has a vehicle lateral dimension smaller than that of the air outlet.   The blower according to claim 3, wherein the flaps (141, 143, 146, 148, 150) change a flow velocity component of the second air flow in the vehicle front-rear direction. A first flap (142, 145, 147, 149) and a second flap (143) which are provided on the vehicle rear side of the duct (12, 12D, 12E) and at least a part of the outer surface thereof constitutes the guide surface. , 146, 148, 150),
The first flap changes the flow velocity component of the first air flow (F12, F13, F14, F15) in the vehicle longitudinal direction, and the second flap is the second air flow (F22, F23, F24, F25). The air blower according to claim 2, wherein a flow velocity component in a vehicle front-rear direction is changed.   The blower according to claim 5, wherein the first flap has a larger dimension in the left-right direction of the vehicle than the second flap.   The duct is configured such that the pressure of the air flow supplied to the first blow-out portion is higher than the pressure of the air flow supplied to the second blow-off portion. The blower described in 1. The duct has a first guide vane (1261) that guides air to the first blowing part and a second guide vane (1262) that guides air to the second blowing part,
The blower according to claim 7, wherein the first guide vane is larger than the second guide vane. The duct has a throttle channel (125) inside which communicates with the outlet and has a cross-sectional area gradually decreasing toward the outlet.
The portion (1251) communicating with the first blowing portion in the throttle channel has a smaller cross-sectional area than the portion (1252) communicating with the second blowing portion. Blower device.   The blower outlet (120D) is characterized in that, in the left-right direction of the vehicle, a portion (121D) closer to the center of the cabin is formed on the vehicle rear side than a portion (122D) closer to the end of the cabin. The blower according to claim 2.   In the vehicle left-right direction, the third outlet (123B), which is a portion of the outlet (120B) near the end of the cabin, blows out the third air flow (F32) supplied to the first position. The air blower according to claim 2, wherein the air blower is a fan. A third flap (144) provided on the vehicle rear side of the duct (12), at least a part of the outer surface of which constitutes the guide surface;
The blower according to claim 11, wherein the third flap changes a flow velocity component in a vehicle front-rear direction of the third air flow and supplies the third air flow to the first position.   12. The outer surface (127) of the duct constituting the guide surface allows the third air flow to flow directly from the vehicle rear side end portion of the outer surface to the first position. Blower device.

Images