JP2010111177A - Blower, and battery cooling device and vehicular air conditioning device equipped with the blower - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact blower capable of varying an intake direction and a blowing direction of the air, and a battery cooling device and a vehicular air conditioning device equipped with the blower. <P>SOLUTION: A fan casing 20 of the blower 1 is configured such that a blow-out opening 22 displaces with respect to an outer case 10 so as to fit both a first opening 11 and a second opening 12. The fan casing 20 has an enlargement wall 24 which, when the blow-out opening 22 is at a position where it fits with one of the first opening 11 and the second opening 12, defines a path connected to one of the openings and an internal space 30 of the outer case facing an intake opening 21. Being defined by the enlargement wall 24, a ventilation passage 31 is formed to communicate one opening with the other opening via the intake opening 21. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a blower capable of selectively blowing air in two or more different directions, and also relates to a battery cooling device and a vehicle air conditioner including the blower.

  Conventionally, as this type of blower, for example, devices described in Patent Literature 1 and Patent Literature 2 are known. The first prior art described in Patent Document 1 discloses a vehicle air conditioner that can blow out air in a plurality of different directions. The device of the first prior art has a centrifugal fan such as a turbo fan in a case part, and a first air outlet to a fourth air outlet are formed at a predetermined interval on the peripheral wall of the case part. . Further, a rotary door that changes the blowing direction of the air blown from the centrifugal fan is provided outside the outer peripheral portion of the centrifugal fan in the case portion. Two openings are formed in the peripheral wall of the rotary door at a position that is substantially point-symmetric with respect to the central portion of the rotation shaft. By rotating this rotary door, the first to fourth outlets can be opened and closed by the peripheral wall and the two openings, and the blowing direction can be changed. In this manner, the air can be blown in a plurality of directions by blowing into the vehicle interior through the two openings or exhausting the vehicle out of the vehicle interior.

The second prior art described in Patent Document 2 discloses a vehicle air conditioner that can adjust the direction of air blown from a blower to a predetermined direction by rotating a scroll casing in which a centrifugal fan is built. ing. In the second prior art, the scroll casing is rotationally displaced about the rotation axis of the centrifugal fan via a gear with an electric actuator. With this method, the blowing direction is determined so as to satisfy the target blowing temperature, and the blowing amount to the cooler and the blowing amount to the heater are adjusted.
JP-A-11-139138 JP 2004-338694 A

  However, in the first prior art, although the blowing direction can be changed by matching the two openings to any of the four outlets, the suction port of the centrifugal fan is a single predetermined opening. The air sucked in is limited to one direction. Therefore, it is impossible to change both the intake direction and the discharge direction.

  Also in the second prior art, as in the first prior art, the intake port of the scroll casing is a single predetermined opening, so the intake direction is limited to one direction. Therefore, in any of the conventional techniques, it is not possible to implement a blowing direction that reverses the intake direction and the blowing direction.

  In addition, when a centrifugal fan is used, as a means for reversing the intake direction and the blow-out direction, a first communication passage that connects the upstream side of the suction port of the centrifugal fan and the upstream side of the blow-out port; There is a conventional example in which a second communication passage that connects the downstream side of the mouth and the downstream side of the air outlet and a door that opens and closes each of the air inlet and the air outlet are provided.

  In this conventional example, when air is blown from the outlet of a normal centrifugal fan, if both the inlet and the outlet are opened by the door, the air sucked from the inlet is discharged from the outlet by the centrifugal fan. It blows out and comes to blow. On the other hand, when the blowing direction is reversed, each of the outlet and the inlet is closed by a door. As a result, rotation of the centrifugal fan causes air downstream of the air outlet to flow through the second communication passage, and the air is sucked into the centrifugal fan from the downstream side of the suction port and blown out of the centrifugal fan. It is sent to the upstream side of the suction port through the passage. In this way, the air on the downstream side of the air outlet is sent to the upstream side of the suction port, and the air flow can be changed in the reverse direction.

  However, in this conventional example, a device for opening and closing the first communication passage, the second communication passage, and the opening is required, and there is a problem that equipment such as a duct and its installation space are required.

  Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a blower capable of reducing the size and changing the air suction direction and the air blowing direction, a battery cooling apparatus including the blower, and a vehicle. It is to provide an air conditioner.

  In order to achieve the above object, the following technical means can be employed. In addition, the code | symbol in the parenthesis as described in a claim and each means of the following shows the correspondence with the specific means as described in embodiment mentioned later as one aspect.

  The invention relating to the blower according to claim 1 is a shape surrounding the centrifugal fan (23) for blowing out the air sucked in the direction along the rotating shaft (2) in the centrifugal direction, and sucking the air. A fan casing (20) in which a suction port (21) and a blowout port (22) for blowing out the sucked air are formed, and a fan casing is provided inside, and at least a first opening (11) and a second opening (12 ) Are formed, a first passage (13) connected to the first opening, and a second passage (14) connected to the second opening.

And a fan casing is a structure displaced with respect to the said outer case so that a blower outlet may fit both a 1st opening part and the said 2nd opening part,
Further, the fan casing has an internal space (30) of the outer case facing the passage and the suction port connected to the one opening when the outlet is in a position that matches one of the first opening and the second opening. ) And a ventilation path (31) for communicating the other opening and the one opening via the inlet of the fan casing by the partition by the partition. Is formed.

  According to this invention, since the blower outlet of the fan casing is configured to be able to match both the first opening and the second opening formed in the outer case, the air blown out by the centrifugal fan can be It can be blown out from the opening. Further, when the outlet is in a position that fits one of the openings, the partition portion divides the passage on the outlet side and the internal space on the suction side, so that the other opening, the inlet of the fan casing, the one opening Ventilation paths communicating in the order of the parts are formed, and it is possible to prevent the air in the passage on the blow-out side from flowing back into the internal space on the suction side. As a result, bidirectional airflow that reverses the blowing direction by the blower can be performed without backflow, and further, by changing the positional relationship between the outer case and the fan casing, a passage is added as in the above-described conventional example. It is possible to realize bidirectional air blowing without any problems. Therefore, it is possible to reduce the size of the apparatus and to obtain a blower that can freely change both the air suction direction and the air blowing direction.

According to the second aspect of the present invention, in addition to the first aspect, the surface (27) of the fan casing in which the suction port is formed has a predetermined length with respect to the inner wall surface (15) of the opposing outer case. The first opening and the second opening are each provided with an enlarged opening portion (11a, 12a) that opens largely to the inner wall surface side of the outer case than the air outlet,
A partition part is extended and provided in the inner wall surface side of an outer side case from the peripheral part of a blower outlet, It is an enlarged wall (24) which covers the enlarged opening part of each opening part, It is characterized by the above-mentioned.

  According to the present invention, since the blow-out side passage and the suction-side internal space are partitioned by the enlarged wall, the other opening, the fan casing suction port, and the one of the fan casing are formed without enlarging the blow-out port of the fan casing. The ventilation path which makes an opening communicate is formed, and it can prevent that the air of the channel | path of a blowing side flows back into the internal space of a suction side. Moreover, if the size of the enlarged wall is adjusted so as to be adapted to the size of each opening, the outer case having various sizes of openings can be accommodated.

According to a third aspect of the present invention, in addition to the first aspect of the present invention, the surface (27) of the fan casing in which the suction port is formed has a predetermined length with respect to the inner wall surface (15) of the opposing outer case. The first opening and the second opening are each provided with an enlarged opening portion (11a, 12a) that opens largely to the inner wall surface side of the outer case than the air outlet,
The partition portion is a wall portion (28) provided to extend from the surface of the fan casing around the suction port to the inner wall surface side of the outer case, and faces the inner space of the outer case to the suction port and the other opening. It is characterized by partitioning into a suction side space (32) and a blowout side space (33) facing one opening.

  According to the present invention, the outlet side passage and the suction side passage are partitioned by the wall portion extending from the surface portion of the fan casing, so that the other opening, the inlet of the fan casing, and the one opening are provided. Can be formed, and air in the passage on the blowout side can be prevented from flowing back into the internal space on the suction side.

The invention according to claim 4 is the invention according to claim 1 or 2, wherein the outer case further has a third opening (16) connected to the third passage (17), and the fan casing is The air outlet is configured to be displaced with respect to the outer case so as to fit any of the first opening, the second opening, and the third opening,
Further, the fan casing has a passage and a suction port that are connected to the one opening when the air outlet is in a position that matches one of the first opening, the second opening, and the third opening. A first partition that divides the internal space of the outer case that faces the second case, and a second partition (29) that closes one of the remaining openings so as not to communicate with the suction port. It is characterized by.

  According to this invention, when three or more openings are formed in the outer case, the air blown into one passage selected from the three or more passages is selectively sucked from the other passages. be able to. Thus, the intake side passage and the blowout side passage can be arbitrarily selected from the three or more passages. Therefore, the air blower which can move the air which exists in three or more spaces and ventilation paths to a desired place can be provided.

  The invention of the battery cooling device according to claim 5 is configured by integrally connecting the blower according to any one of claims 1 to 4 and the plurality of battery modules so that energization is possible, and the first passage. And a heat generating component (51) that is a component that dissipates heat to the outside and is installed in the first passage, and the battery stack further includes a heat generating component and a blower in the first passage. It is installed between.

  According to the present invention, when it is necessary to warm up the battery stack by providing the battery stack between the blower and the heat generating component using the blower capable of bidirectional air blowing, the first passage from the first passage. An air flow that flows through the two passages is formed so that heat from the heat-generating component is sucked and discharged, and when the battery stack needs to be cooled, an air flow that flows from the second passage to the first passage is formed. Can be cooled. Therefore, selection of warming up and cooling of the battery module can be realized by switching the blowing direction of the blower.

  The invention according to claim 6 is characterized in that the heat generating component according to claim 5 is an electronic component that is used for charging / discharging the battery module and that outputs electric power adjusted by a switching power supply device. According to the present invention, the battery stack can be warmed up by utilizing the heat radiation from the existing electronic components used for charging and discharging the battery module. Moreover, since the amount of heat radiation can be adjusted by controlling the operating state of the switching power supply device, it is possible to adjust the warming function using existing components.

  The vehicle air conditioner according to a seventh aspect of the invention includes the blower according to any one of the first to fourth aspects as means for blowing air, wherein one of the first passage and the second passage is provided in the vehicle interior. It is configured to communicate with the space (100a) and communicate with the other outside the vehicle. According to this invention, by using the blower that enables bidirectional air blowing, the blowing direction by the blower is switched to the direction of flowing from the first passage to the second passage or the direction of flowing from the second passage to the first passage. Thus, it is possible to obtain a vehicle air conditioner that can freely switch between an air flow from the vehicle interior to the vehicle exterior and an air flow from the vehicle exterior to the vehicle interior without providing a complicated passage.

  A plurality of modes for carrying out the present invention will be described below with reference to the drawings. In each embodiment, parts corresponding to the matters described in the preceding embodiment may be denoted by the same reference numerals, and redundant description may be omitted. When only a part of the configuration is described in each mode, the other modes described above can be applied to the other parts of the configuration. Not only combinations of parts that clearly show that combinations are possible in each embodiment, but also a combination of the embodiments even if they are not clearly shown unless there is a problem with the combination. It is also possible.

(First embodiment)
1st Embodiment which is one Embodiment of the air blower which concerns on this invention is described with reference to figures. FIG. 1 is a perspective view for explaining the configuration of the blower 1 of the first embodiment, and shows the air flow from the second opening 12 toward the first opening 11. FIG. 2 is a schematic diagram showing the air flow and the ventilation path 31 when FIG. 1 is viewed downward. FIG. 3 is a side sectional view for explaining the internal configuration of the blower 1 and shows an air flow and a ventilation path from the second opening 12 toward the first opening 11.

  The blower 1 of the present embodiment is a blower capable of changing the air blowing direction, and is equipped with a centrifugal fan 23 suitable for use under high static pressure conditions, and a fan casing 20 having the centrifugal fan 23 therein. And an outer case 10 having a shape surrounding the fan casing 20 inside. A first passage 13 is connected to the first opening 11, and a second passage 14 is connected to the second opening 12. The first passage 13 and the second passage 14 are passages formed by a duct or the like, for example.

  The centrifugal fan 23 is a fan that blows out air sucked in the direction along the rotation shaft 2 in the centrifugal direction, and is, for example, a sirocco fan, a radial fan, a turbo fan, or the like. The centrifugal fan 23 is driven by a motor (not shown) that rotates the rotary shaft 2.

  The outer case 10 is formed by a peripheral wall portion formed in a shape surrounding the fan casing 20 and two flat plate portions that cover the cylindrical peripheral wall portion from both ends. The outer case 10 is provided with a plurality of openings through which air passes. In the blower 1 of the present embodiment, the first opening 11 and the second opening 12 are formed in the peripheral wall.

  The fan casing 20 is a casing having a scroll portion having a suction port 21 and a blower port 22, and has an annular flat surface portion 27 (a surface portion of the fan casing) in which the suction port 21 for sucking air is formed, and an opening. This is a housing surrounded by a flat plate portion on which no is formed and a scroll surface portion. Therefore, when the centrifugal fan 23 rotates, the air sucked from the suction port 21 in the direction along the rotation shaft 2 is blown out in the centrifugal direction (radially outward) of the centrifugal fan 23, and the inside of the fan casing 20. The air is blown out from the air outlet 22 through the passage. The annular flat surface portion 27 (the surface portion of the fan casing) in which the suction port 21 is formed is provided at a position that is separated by a predetermined length from the ceiling surface (inner wall surface of the outer case) 15 in the outer case at the opposite position. It has been. The space formed between the ceiling surface 15 in the outer case, the annular flat surface portion 27 and the suction port 21 becomes a negative pressure space by the rotation of the centrifugal fan 23.

  The fan casing 20 disposed inside the outer case 10 is configured to be displaceable with respect to the outer case 10 so that the air outlet 22 fits both the first opening portion 11 and the second opening portion 12. . That is, by displacing the fan casing 20 or the outer case 10, the air outlet 22 can be matched with the first opening 11 or the second opening 12, and the air introduced from the air inlet 21 matches the air outlet 22. Blow out from any of the openings. As a method of displacing the outer case 10 or the fan casing 20 with respect to the other party, a displacement due to rotation, a displacement due to rotation, a displacement due to linear movement, or a combination of these can be adopted. The blower 1 of the present embodiment employs a displacement that accompanies rotation as the displacement, and has a configuration that realizes this.

  The displacement accompanying this rotation is realized, for example, by rotating the fan casing 20 clockwise and counterclockwise by an actuator such as a servo motor 40 as shown in FIG. A gear 41 extending a predetermined length in the circumferential direction is provided on the outer peripheral surface of the peripheral wall portion of the fan casing 20. The external gear 42 meshing with the gear 41 is driven to rotate by a servo motor 40. The rotation of the external gear 42 causes the fan casing 20 that is integral with the gear 41 to rotate about the rotation shaft 2. That is, the fan casing 20 rotates so that the range from the position where the air outlet 22 matches the first opening 11 to the position where the air outlet 22 matches the second opening 12 can be angularly displaced (rotation C in the figure). It is configured.

  Each opening part of the 1st opening part 11 and the 2nd opening part 12 is provided rather than the blower outlet 22 so that it may be provided with the enlarged opening parts 11a and 12a largely opened to the ceiling surface 15 side in an outer side case from the blower outlet 22. A large opening. That is, when the first opening portion 11 or the second opening portion 12 is viewed from the side, the inner space 30 of the outer case formed between the annular flat portion 27 of the fan casing 20 and the ceiling surface 15 in the outer case. Is in a positional relationship visible through the enlarged opening portions 11a and 12a. Accordingly, when the centrifugal fan 23 rotates, external air is sucked from the enlarged opening portion 11a or the enlarged opening portion 12a and taken into the inner space 30 of the outer case, and enters the suction port 21 in the direction along the rotation axis 2. Will be inhaled.

  Furthermore, the fan casing 20 is provided so as to extend from the peripheral edge of the air outlet 22 to the ceiling surface 15 side in the outer case when the air outlet 22 is in a position that matches the first opening 11 or the second opening 12. A plate-like enlarged wall 24 covering the portion 11a or the enlarged opening portion 12a is provided. The enlarged wall 24 is an internal space of the outer case that faces the passage and the suction port that are connected to one opening when the air outlet 22 is in a position that matches one of the first opening 11 and the second opening 12. Functions as a partitioning section. By the expansion wall 24 functioning as a partition portion, the other opening portion that does not match the air outlet 22 and the one opening portion that matches the air outlet 22 are communicated via the suction port 22. A path 31 is formed.

  FIGS. 1 to 3 show a case where the blowing direction is set so that air is sucked from the second passage 14 and blown out to the first passage 13. In this case, the external gear 42 rotates together with the rotation of the servo motor 40, and the gear 41 causes the fan casing 20 to be angularly displaced to a position where the air outlet 22 matches the first opening 11 with the amount of rotation of the external gear 42, The centrifugal fan 23 is rotated. At this time, the air in the second passage 14 passes through the enlarged opening portion 12a of the second opening 12 that is largely open to the suction side, flows into the internal space 30 of the outer case, and is sucked into the suction port 21. And since the expansion wall 24 covers the expansion opening portion 11a of the first opening portion 11 from the inside of the outer case 10, the air blown from the air outlet 22 to the first passage 13 is the expansion wall. 24, the first passage 13 flows down without returning to the inner space 30 of the outer case. Thus, the ventilation path 31 which connects the 2nd channel | path 14, the internal space 30 of an outer case, the suction inlet 21, the blower outlet 22, and the 1st channel | path 13 is formed.

  Furthermore, in this case, plate-like backflow prevention walls 25 and 26 provided by extending a predetermined length along the peripheral wall portion of the fan casing 20 from both sides of the peripheral edge portion of the air outlet 22 are in contact with the inner peripheral wall surface of the outer case or Set to the approaching position. The reverse flow restraining walls 25 and 26 ensure the creeping length for the air blown into the first passage 13 to flow into the inner space 30 of the outer case, so that the air is blown out from the outlet 22 into the first passage 13. Air does not leak from both sides of the peripheral edge of the air outlet 22 and flow back into the inner space 30 of the outer case.

  Preferably, when the air outlet 22 is set to a position that matches the first opening 11, the peripheral wall portion of the fan casing 20 is further moved to the inner peripheral wall side of the outer case by a link mechanism or the like, so that the backflow prevention wall is 25 and 26 are in contact with the inner peripheral wall of the outer case. With such a configuration, leakage of the blown air by the backflow prevention walls 25 and 26 is further suppressed, and a further backflow prevention effect can be expected.

  The backflow prevention walls 25 and 26 are preferably flexible plate-like members. For example, the backflow prevention walls 25 and 26 may be formed as thin members so that they can be easily bent. It may be formed of a material softer than the casing 20. When changing the material, the fan casing 20 can be formed by two-color molding, and the backflow prevention walls 25 and 26 and the casing portion can be integrally molded with different materials. By providing the backflow prevention walls 25 and 26 with flexibility, the backflow prevention walls 25 and 26 are easily deformed along the inner peripheral wall surface of the outer case 10, and the internal space of the outer case 10 from the outlet side passage. The effect which suppresses the air leak to can be improved.

  Next, referring to FIG. 4 and FIG. 5, when the blowing direction is set so that air is sucked from the first passage 13 and blown to the second passage 14 (the air flow in the reverse direction in the case of FIGS. 1 to 3). ). FIG. 4 is a perspective view of the blower 1 and shows an air flow from the first opening 11 toward the second opening 12. FIG. 5 is a schematic diagram showing an air flow and a ventilation path when FIG. 4 is viewed downward. In this case, the external gear 42 rotates together with the rotation of the servo motor 40, and the gear 41 causes the fan casing 20 to be angularly displaced to a position where the air outlet 22 matches the second opening 12 with the rotation amount of the external gear 42, The centrifugal fan 23 is rotated. At this time, the air in the first passage 13 passes through the enlarged opening portion 11a of the first opening 11 that is largely open to the suction side, flows into the internal space 30 of the outer case, and is sucked into the suction port 21. Also in this case, since the enlarged wall 24 covers the enlarged opening portion 12a of the second opening portion 12 from the inside of the outer case 10, the air blown out from the outlet 22 to the second passage 14 is expanded. The wall 24 allows the second passage 14 to flow down without returning to the inner space 30 of the outer case. Thus, the ventilation path 31 which connects the 1st channel | path 13, the inner space 30 of an outer case, the suction inlet 21, the blower outlet 22, and the 2nd channel | path 14 is formed.

  Furthermore, also in this case, plate-like backflow prevention walls 25 and 26 provided by extending a predetermined length along the peripheral wall portion of the fan casing 20 from both sides of the peripheral portion of the air outlet 22 are provided on the inner peripheral wall surface of the outer case. Since the position is set to be in contact with or close to, the air blown out from the air outlet 22 to the first passage 13 does not leak from both sides of the peripheral edge of the air outlet 22 and flow back into the inner space 30 of the outer case.

  Further, the partition section that divides the outlet-side passage and the inner space 30 of the outer case may have a form as shown in FIG. FIG. 6 is a side sectional view for explaining an internal configuration of the blower 1 including a partition portion of another form. As shown in FIG. 6, the partition portion may be configured by a cylindrical portion that extends from the annular flat surface portion 27 of the fan casing 20 to the air outlet 22 </ b> A.

  This cylindrical portion forms a passage through which air blown in the centrifugal direction from the centrifugal fan 23 reaches the air outlet 22A. Since the annular flat surface portion 27 is positioned below the upper end portion of the air outlet 22A, the upper side surface portion 27A of the cylindrical portion is inclined obliquely upward from the annular flat surface portion 27 toward the upper end portion of the air outlet 22A. Yes. That is, when the air outlet 22 is located at a position that matches the first opening 11 or the second opening 12, the enlarged opening portion 11a or the enlarged opening portion 12a is provided on the upper side surface portion of the cylindrical portion that extends obliquely upward. It will be covered and covered with 27A.

  Next, a suitable apparatus to which the blower 1 of the present embodiment is applied will be described with reference to FIGS. First, the 1st application example is an example which uses the air blower 1 for a battery cooling device. FIG. 7 is a schematic diagram showing the configuration of the battery cooling device equipped with the blower 1, and shows the air flow when the battery is cooled. FIG. 8 shows an air flow when the battery is warmed up.

  This battery cooling device is configured by integrally connecting a blower 1 and a plurality of battery modules so as to be energized, a battery stack 50 installed in the first passage 13 or the second passage 14, and a component that radiates heat to the outside. And a heat generating component installed in a similar passage in which the battery stack 50 is disposed. The battery stack 50 is installed between the heat generating component and the blower 1 in the passage.

  In FIGS. 7 and 8, the battery stack 50 and the heat generating component are examples installed in the first passage 13. When the battery is cooled as shown in FIG. 7, the air outlet 22 of the fan casing 20 is set to a position that matches the first opening 11, and the centrifugal fan 23 is rotated so that the second passage 14 can be rotated. An air flow to the one passage 13 is formed. Then, the air in the second passage 14 is blown to the battery stack 50, whereby the battery stack 50 is cooled, and further the heat generating components on the downstream side are also cooled. When warming up the battery as shown in FIG. 8, the air outlet 22 of the fan casing 20 is set to a position that matches the second opening 12, and the centrifugal fan 23 is rotated to An air flow to the second passage 14 is formed. Then, when passing through the heat generating component, the air in the first passage 13 absorbs heat and the temperature rises, and the air whose temperature has risen is supplied to the battery stack 50 to warm the battery module.

  In this way, by providing the battery stack 50 between the blower 1 that enables bidirectional ventilation and the heat generating component, when the battery stack 50 needs to be warmed up, the air that has passed through the heat generating component is used as the battery stack. The blowing direction of the blower 1 is set so as to be supplied to 50, and when the battery stack 50 needs to be cooled, the blowing direction may be set so as to supply the air before passing through the heat generating component to the battery stack 50. it can. Therefore, the warm-up and cooling of the battery module can be selected by switching the blowing direction of the blower 1 without increasing the size of the apparatus.

  Further, the heat generating component is preferably an electronic component that is used for charging / discharging the battery module and that outputs electric power adjusted by the switching power supply device. For example, a DC / DC converter 51 is employed as an example of an electronic component. When the DC / DC converter 51 is adopted as the electronic component, the battery can be warmed up without adding a warming device in order to effectively use the existing DC / DC converter. it can.

  The DC / DC converter 51 is a device used to control charging / discharging of the battery module. The DC / DC converter 51 includes a high-voltage power supply system including a battery stack 50 (high-voltage battery, main engine battery) connected to a high load such as a power generation motor and a traveling motor of the hybrid vehicle so that power can be transmitted and received, and power to the low-voltage load. And a low-voltage power supply system including an auxiliary battery (low-voltage battery) for supplying the electronic component. The DC / DC converter 51 is configured to adjust power supplied to a high load such as a motor and power supplied to the low load by a power element (an example of a switching power supply device).

  The battery cooling device is used in a well-known hybrid vehicle that uses an internal combustion engine and a battery drive motor as a travel drive source, and cools a battery serving as a drive power source for the travel motor. The battery is, for example, a nickel metal hydride secondary battery, a lithium ion secondary battery, or an organic radical battery, and is housed in a housing, under a car seat, between a rear seat and a trunk room, a driver seat and a passenger seat. It is arranged in the space between.

  The battery cooling device includes a control component that is electrically connected to a plurality of battery modules and is used to control power supply from the battery stack 50, and is integrated with the blower 1 as a battery pack. Mounted on. The battery stack 50 is stored in, for example, a housing. The housing is provided with an attachment portion for fixing the housing to the vehicle side by bolting or the like, and an equipment storage box.

  The device box is configured to be communicable with the battery monitoring unit, to which the detection results from various sensors for monitoring the battery state (for example, voltage, temperature, etc.) are input, and to exchange power with the DC / DC converter 51. A control device that controls the motor of the blower 1 and controls the rotational position of the fan casing 20 and a wire harness that connects each device are housed. The battery monitoring unit is a battery ECU (battery electronic control unit) that monitors the state of each battery module, and is connected to the battery stack 50 by a number of wires. The control device and the battery monitoring unit are configured to be able to communicate with various control devices of the vehicle via a communication line connected to the communication connector.

  The control device detects the number of revolutions of the centrifugal fan 23 of the blower 1 and detects the temperature of the air sucked by the centrifugal fan 23 by an intake air temperature sensor. The control device performs a calculation based on the intake air temperature detected by the intake air temperature sensor, the battery temperature detected by various sensors, and a control program stored in advance, and the centrifugal fan so that the battery temperature falls within an appropriate temperature range. The number of revolutions of 23 is controlled to appropriately adjust the battery cooling. For example, the control device performs PWM control for modulating the voltage pulse wave by changing the duty ratio. For example, the control device variably controls the rotational speed of the centrifugal fan 23 according to the target cooling capacity by PWM control, and controls the temperature of the battery stack 50 detected by a temperature sensor or the like.

  As described above, by adopting an electronic component that is used for charging / discharging of the battery module and outputting power adjusted by the switching power supply device as the heat generating component, heat dissipation from the existing electronic component used for charging / discharging of the battery module. Can be used to warm up the battery stack 50. Further, since the adjustment of increasing or decreasing the heat radiation amount can be performed by controlling the operating state of the power element (switching power supply device), it is possible to adjust the warming power.

  Next, the 2nd application example is an example which uses the air blower 1 for a vehicle air conditioner. FIG. 9 is a schematic diagram showing a configuration of a vehicle air conditioner equipped with the blower 1, and shows an air flow when air is taken into the vehicle compartment from the outside of the vehicle. FIG. 10 shows the air flow when the air in the passenger compartment is discharged outside the vehicle.

  The vehicle air conditioner mounted on the vehicle 100 includes the blower 1 as a means for blowing air, and communicates one of the first passage 13 and the second passage 14 to the vehicle interior space 100a and communicates the other to the outside of the vehicle. It is the apparatus comprised as follows. FIGS. 9 and 10 show examples in which the blower 1 is mounted on each of the front air conditioner 60 and the rear air conditioner 61.

  In the front air conditioner 60, as shown in FIG. 9, the air outlet 22 of the fan casing 20 is set to a position that fits the first opening 11, and the centrifugal fan 23 is rotated, so that the second passage 14 to the first passage. An air flow to 13 is formed. Thereby, the air outside the vehicle is sucked into the second passage 14 and the outside air is introduced into the vehicle interior space 100a.

  On the other hand, as shown in FIG. 10, the blower outlet 22 of the fan casing 20 is set to a position that matches the second opening 12, and the centrifugal fan 23 is rotated to move the first passage 13 to the second passage 14. An air flow is formed. Thus, when the occupant is absent, the first passage 13 is ventilated by sucking the air in the vehicle interior space 100a and discharging it to the outside of the vehicle, and the hot air inside the vehicle can be discharged. As described above, in the front air conditioner 60, it is possible to easily introduce the outside air and discharge the inside air by displacing the fan casing 20 of the blower 1 and freely switching the outlet 22.

  In the rear air conditioner 61, the first passage 13 is provided to extend to the vicinity of the ceiling at both ends in the vehicle width direction of the vehicle interior space 100a. Then, as shown in FIG. 9, the air from the second passage 14 to the first passage 13 is set by setting the outlet 22 of the fan casing 20 to a position that matches the first opening 11 and rotating the centrifugal fan 23. A flow is formed. Thereby, the air of the 2nd channel | path 14 can be suck | inhaled and it can blow off from the ceiling side of the vehicle interior space 100a. When the second passage 14 is connected to the lower portion of the vehicle interior space 100a, there is an effect of improving the air-conditioning environment by circulating the air in the vehicle interior space 100a. When the second passage 14 is connected to the outside of the vehicle, There is an effect of introducing fresh air into the vehicle interior by introducing outside air.

  On the other hand, as shown in FIG. 10, the blower outlet 22 of the fan casing 20 is set to a position that matches the second opening 12, and the centrifugal fan 23 is rotated to move the first passage 13 to the second passage 14. An air flow is formed. Thus, ventilation is performed in which the air near the ceiling of the vehicle interior space 100a is sucked into the first passage 13 and discharged outside the vehicle. For example, it is possible to positively exhaust high-temperature air that is stopped near the ceiling when no occupant is present. As described above, in the rear air conditioner 61, by installing the blower 1 and freely switching the air outlet 22, it is possible to easily execute outside air introduction, inside air discharge, and inside air circulation.

  The effect which the air blower 1 of this embodiment brings is described. The fan casing 20 included in the blower 1 is configured to be displaced with respect to the outer case 10 so that the air outlet 22 fits both the first opening portion 11 and the second opening portion 12. Further, the fan casing 20 is configured so that when the air outlet 22 is located at one of the first opening portion 11 and the second opening portion 12, the outer casing facing the passage connected to the one opening portion and the suction port 21. An enlarged wall 24 that partitions the internal space 30 is provided. By such a partition by the enlarged wall 24, an air passage 31 is formed that communicates one opening and the other opening via the suction port 21.

  That is, the air outlet 22 of the fan casing 20 is configured to be able to match both the first opening portion 11 and the second opening portion 12 formed in the outer case 10, so that it is blown out by the centrifugal fan 23. Air can be blown out from any opening. Further, when the blowout port 22 is in a position that matches one of the openings, the passage on the blowout side and the internal space on the suction side are partitioned by the enlarged wall 24, so the other opening, the suction port 22, and the one opening Ventilation paths communicating in the order of the parts are formed, and it is possible to prevent the air in the passage on the blow-out side from flowing back into the internal space on the suction side. Thereby, the bidirectional | two-way ventilation which reverses the blowing direction by the air blower 1 can be implemented without flowing backward.

  Furthermore, by changing the position of the fan casing 20 with respect to the outer case 10, bidirectional air blowing can be realized without adding a passage as in the above-described conventional example. Therefore, downsizing of the apparatus is obtained, and a blower capable of freely changing both the air suction direction and the air blowing direction is obtained.

(Second Embodiment)
In the second embodiment, a blower 1 </ b> A that is another form of the blower 1 of the first embodiment will be described with reference to FIGS. 11 and 12. FIG. 11 is a perspective view for explaining the configuration of the blower 1 </ b> A, and shows the air flow from the second opening 12 toward the first opening 11. FIG. 12 is a schematic diagram showing an air flow and a ventilation path when FIG. 11 is viewed downward. In FIG. 11 and FIG. 12, the components given the same reference numerals as those in the drawings of the first embodiment described above are the same components and have the same effects.

  As shown in FIG. 11 and FIG. 12, the blower 1 </ b> A is a blower that includes a partition portion of another form with respect to the blower 1. The partition portion of the blower 1 </ b> A includes a U-shaped wall portion 28 erected on the ceiling surface 15 side in the outer case (the inner wall surface side in the outer case) from the annular flat portion 27 around the suction port. The U-shaped wall portion 28 is a U-shaped wall portion that surrounds the suction port 21 so as to include the suction port 21 when the suction port 21 of the fan casing 20A is viewed in a plan view. The upper end of the U-shaped wall portion 28 extends to the vicinity of the ceiling surface 15 in the outer case. The U-shaped wall portion 28 having such a configuration partitions the inner space 30 of the outer case into a suction port 21, a suction side space 32, and a blowout side space 33.

  11 and 12 show a case where the blowing direction is set so that air is sucked from the second passage 14 and blown out to the first passage 13. In this case, the external gear 42 rotates with the rotation of the servo motor 40, and the gear 41 causes the fan casing 20A to be angularly displaced to a position where the blowout port 22 matches the first opening 11 with the rotation amount of the external gear 42, The centrifugal fan 23 is rotated. At this time, the air in the second passage 14 passes through the enlarged opening portion 12a of the second opening 12 that is largely open to the suction side, flows into the suction side space 32 in the outer case, and is sucked into the suction port 21. The U-shaped wall portion 28 includes a suction side space 32 formed below the ceiling surface 15 in the outer case toward the suction port 21, and a blowout side space 33 formed around the suction side space 32. Since the air is blown into the first passage 13 from the air outlet 22, the air flows down the first passage 13 by the U-shaped wall portion 28 without returning to the suction side space 32. Thus, the ventilation path 31 which connects the 2nd channel | path 14, the suction side space 32, the suction inlet 21, the blower outlet 22, and the 1st channel | path 13 is formed.

  Therefore, since the wall portion standing from the annular flat portion 27 to the vicinity of the ceiling surface 15 in the outer case separates the passage on the blowing side and the passage on the suction side, the opening on the suction side and the fan casing 20A The ventilation path which connects the suction inlet 21 and the opening part on the blowing side can be formed, and the bidirectional | two-way ventilation which reverses the blowing direction of the air blower 1A can be implemented without backflow.

(Third embodiment)
In 3rd Embodiment, the air blower 1B which is the other form of the air blower 1 of 1st Embodiment is demonstrated according to FIG. 13 and FIG. FIG. 13 is a perspective view for explaining the configuration of the blower 1 </ b> B, and shows the air flow from the third opening 16 toward the second opening 12. FIGS. 14A to 14C are schematic diagrams showing air flow and ventilation paths that can be changed for the blower 1B. In FIG. 13 and FIG. 14, component parts denoted by the same reference numerals as those in the drawings of the first embodiment described above are similar component parts and exhibit the same operational effects.

  As shown in FIG. 13 and FIG. 14, the blower 1 </ b> B further has a third opening 16 formed in the peripheral wall portion of the outer case 10 </ b> B with respect to the blower 1. The 3rd opening part 16 is connected to the 3rd channel | path 17, and 1A of air blowers are air blowers which can be connected with at least 3 channel | path by this structure. The fan casing 20 </ b> B is configured to be displaced with respect to the outer case 10 </ b> B so that the air outlet 22 fits any of the first opening 11, the second opening 12, and the third opening 16.

  The fan casing 20B includes an enlarged wall 24 that is a first partition part, an enlarged wall 29 that is a second partition part, and plate-like enlarged walls 25B and 26B that are third partition parts. . When the air outlet 22 is in a position that matches any one of the first opening 11, the second opening 12, and the third opening 16, the enlarged wall 24 is connected to the one opening. It is a partition that partitions the passage and the internal space 30 of the outer case facing the suction port 21, and the enlarged wall 29 is a partition that can be closed so that one of the remaining openings does not communicate with the suction port 21. is there. The enlarged walls 25B and 26B are partition portions provided by extending a predetermined length along the peripheral wall portion of the fan casing 20B from both side portions of the peripheral portion of the air outlet 22.

  Moreover, it is preferable that the expansion walls 25B and 26B are flexible plate-like members. For example, the expansion walls 25B and 26B may be formed into thin members so as to be easily bent, or from the fan casing 20B. Alternatively, it may be formed of a soft material. When changing the material, the fan casing 20B can be formed by two-color molding, and the enlarged walls 25B and 26B and the casing portion can be integrally molded with different materials. By providing the enlarged walls 25B and 26B with flexibility, the enlarged walls 25B and 26B can be easily deformed along the inner peripheral wall surface of the outer case 10B, and from the blow-out side passage to the inner space of the outer case 10B. The effect of suppressing air leakage can be improved.

  FIG. 13 shows a case where the blowing direction is set so that air is sucked from the third passage 17 and blown out to the second passage 14. In this case, the rotation of the servo motor 40 causes the fan casing 20 </ b> B to be angularly displaced to a position where the air outlet 22 matches the second opening 12, and the centrifugal fan 23 is rotated. At this time, the air in the third passage 17 passes through the enlarged opening portion 16 a of the third opening 16 that is largely opened to the suction side, flows into the inner space 30 of the outer case, and is sucked into the suction port 21. Since the enlarged wall 24 covers the enlarged opening portion 12a from the inside of the outer case 10B and the enlarged wall 29 covers the enlarged opening portion 11a from the inside of the outer case 10B, the outlet 22 Thus, the air blown out to the second passage 14 flows down the second passage 14 without flowing back. Thus, the ventilation path 31 which connects the 3rd channel | path 17, the inner space 30 of an outer case, the suction inlet 21, the blower outlet 22, and the 2nd channel | path 14 is formed.

  Next, FIG. 14A shows a case where the blowing direction is set so that air is sucked from the first passage 13 and blown out to the second passage 14. In this case, the rotation of the servo motor 40 causes the fan casing 20 </ b> B to be angularly displaced to a position where the air outlet 22 matches the second opening 12, and the centrifugal fan 23 is rotated. At this time, the air in the first passage 13 passes through the enlarged opening portion 11a of the first opening 11 that is largely open to the suction side, flows into the internal space 30 of the outer case, and is sucked into the suction port 21. The enlarged wall 24 covers the enlarged opening portion 12a from the inside of the outer case 10B, and the enlarged wall 29 covers the enlarged opening portion 16a of the third opening portion 16 from the inside of the outer case 10B. Therefore, the air blown out from the outlet 22 to the second passage 14 flows down the second passage 14 without flowing back. Thus, the ventilation path 31 which connects the 1st channel | path 13, the inner space 30 of an outer case, the suction inlet 21, the blower outlet 22, and the 2nd channel | path 14 is formed.

  Next, FIG. 14B shows a case where the blowing direction is set so that air is sucked from the second passage 14 and blown out to the first passage 13. In this case, the rotation of the servo motor 40 causes the fan casing 20B to be angularly displaced to a position where the air outlet 22 matches the first opening 11 to rotate the centrifugal fan 23. At this time, the air in the second passage 14 passes through the enlarged opening portion 12a of the second opening 12 that is largely open to the suction side, flows into the internal space 30 of the outer case, and is sucked into the suction port 21. Then, the expansion wall 24 covers the expansion opening portion 11a from the inside of the outer case 10B, and the expansion wall 26B blocks the flow of air through the third opening portion 16. The blown air flows down the first passage 13 without flowing back. Thus, the ventilation path 31 which connects the 2nd channel | path 14, the internal space 30 of an outer case, the suction inlet 21, the blower outlet 22, and the 1st channel | path 13 is formed.

  Next, FIG. 14C shows a case where the blowing direction is set so that air is sucked from the second passage 14 and blown out to the third passage 17. In this case, the rotation of the servo motor 40 causes the fan casing 20 </ b> B to be angularly displaced to a position where the air outlet 22 matches the third opening 16, thereby rotating the centrifugal fan 23. At this time, the air in the second passage 14 passes through the enlarged opening portion 12a of the second opening 12 that is largely open to the suction side, flows into the internal space 30 of the outer case, and is sucked into the suction port 21. Then, the enlarged wall 24 covers the enlarged opening portion 16a from the inside of the outer case 10B, and the enlarged wall 25B blocks the flow of air through the first opening portion 11. The blown air flows down through the third passage 17 without flowing back. Thus, the ventilation path 31 which connects the 2nd channel | path 14, the internal space 30 of an outer case, the suction inlet 21, the blower outlet 22, and the 3rd channel | path 17 is formed.

  Thus, in the blower 1B in which at least three openings are formed in the outer case 10B, the enlarged wall 24 closes the enlarged opening portion of the blowout side opening, and the enlarged walls 29, 25B, and 26B are the suction side opening. By closing an opening that is not used for any of the air outlet and the air outlet side, the air passage on the air outlet side and the air passage on the air inlet side are partitioned, so that the air inlet side opening, the air inlet 21 and the air outlet side of the fan casing 20B are separated. The ventilation path which connects the opening part of can be formed. Therefore, the bidirectional | two-way ventilation which reverses the blowing direction of the air blower 1B can be implemented without flowing backward.

  According to the blower 1B of the present embodiment, the suction side passage and the blowout side passage can be arbitrarily selected from the three or more passages, and the air existing in the three or more spaces and the ventilation passages is desired. It can be moved to a place.

(Fourth embodiment)
In the fourth embodiment, a blower 1C, which is another form of the blower 1 of the first embodiment, will be described with reference to FIGS. 15 and 16. The blower 1 </ b> C of the present embodiment is configured to displace the air outlet 22 by rotating the fan casing 20 </ b> C about the rotation shaft 2 </ b> C arranged in a direction substantially orthogonal to the rotation axis of the fan. That is, in the fan 1C, unlike the fans 1, 1A, 1B, the rotation of the centrifugal fan 23 and the rotation of the fan casing 20C are orthogonal to each other. FIG. 15 is a perspective view for explaining the configuration of the blower 1C. FIGS. 16A to 16C are schematic diagrams showing air flow and ventilation paths that can be changed for the blower 1C. In FIG. 15 and FIG. 16, the components given the same reference numerals as those in the drawings of the first embodiment described above are the same components and have the same effects.

  FIG. 16A shows a case where the blowing direction is set so that air is sucked from the second passage 14 and blown out to the first passage 13. In this case, the rotation of the servo motor 40 causes the fan casing 20 </ b> C to be angularly displaced to a position where the air outlet 22 matches the first opening 11, and the centrifugal fan 23 is rotated. At this time, the air in the second passage 14 passes through the third opening 16, flows into the internal space 30 of the outer case, and is sucked into the suction port 21. And since the backflow prevention walls 25 and 26 are arrange | positioned with the attitude | position which follows the inner surface of 10 C of outer side cases, the air which blown off from the blower outlet 22 to the 1st channel | path 13 does not flow back in the 1st channel | path 13. It begins to flow down. Thus, the ventilation path 31 which connects the 2nd channel | path 14, the internal space 30 of an outer case, the suction inlet 21, the blower outlet 22, and the 1st channel | path 13 is formed.

  Next, FIG. 16B shows a case where the blowing direction is set so that air is sucked from the first passage 13 and blown out to the second passage 14. In this case, the rotation of the servo motor 40 causes the fan casing 20 </ b> C to be angularly displaced to a position where the air outlet 22 matches the first opening 11, and the centrifugal fan 23 is rotated. At this time, the air in the first passage 13 passes through the first opening 11, flows into the inner space 30 of the outer case, wraps around, and is sucked into the suction port 21. And since the backflow prevention walls 25 and 26 are arrange | positioned with the attitude | position which follows the inner surface of 10 C of outer side cases, the air which blown off from the blower outlet 22 to the 2nd channel | path 14 does not flow back in the 2nd channel | path 14. It begins to flow down. Thus, the ventilation path 31 which connects the 1st channel | path 13, the inner space 30 of an outer case, the suction inlet 21, the blower outlet 22, and the 2nd channel | path 14 is formed.

(Other embodiments)
In the above-described embodiment, the preferred embodiment of the present invention has been described. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. It is.

  For example, in the above embodiment, the relative position change between the fan casing 20 and the outer case 10 is realized by an actuator such as the servo motor 40 and a gear mechanism, but the present invention is not limited to this form. . For example, instead of the gear mechanism, a rotational displacement mechanism or a slide displacement mechanism using a pulley and a belt may be used, or a rotational displacement mechanism that directly angularly displaces the shaft to which the fan casing 20 is attached. .

  Further, the relative position change between the fan casing 20 and the outer case 10 described in the above embodiment is a rotational displacement technique, but is not limited to this form. For example, a slide displacement mechanism using a link mechanism, or a mechanism combining the slide displacement mechanism and a gear mechanism may be used.

  Moreover, although the battery cooling device and the vehicle air conditioner are cited as examples in which the blower of the present invention is applied in the above embodiment, the blower of the present invention can be used with the supply / exhaust directions reversed to each other. It can be applied to the device. For example, the present invention may be applied to a supply / exhaust ventilation device for the purpose of supply / exhaust ventilation of buildings or spaces.

It is a perspective view for demonstrating the structure of the air blower of 1st Embodiment, and has shown the air flow which goes to the 1st opening part 11 from the 2nd opening part 12. FIG. It is the schematic diagram which showed the air flow and ventilation path when seeing FIG. 1 downward. It is a sectional side view for demonstrating the structure inside the air blower concerning 1st Embodiment, and has shown the air flow and ventilation path which go to the 1st opening part 11 from the 2nd opening part 12. FIG. It is a perspective view about the air blower of 1st Embodiment, and has shown the air flow which goes to the 2nd opening part 12 from the 1st opening part 11. FIG. It is the schematic diagram which showed the air flow and ventilation path when seeing FIG. 4 in the downward direction. It is a sectional side view for demonstrating the structure inside the air blower 1 provided with the partition part of another form. It is the schematic which shows the structure of the battery cooling device which mounts an air blower, and has shown the air flow when cooling a battery. It is the schematic which shows the structure of the battery cooling device carrying an air blower, and has shown the air flow when warming up a battery. It is the schematic which shows the structure of the vehicle air conditioner which mounts an air blower, and has shown the air flow when taking in air from the vehicle exterior into a vehicle interior. It is the schematic which shows the structure of the vehicle air conditioner which mounts an air blower, and has shown the air flow when discharging the air of a vehicle interior outside a vehicle. It is a perspective view for demonstrating the structure of the air blower of 2nd Embodiment, and has shown the air flow which goes to the 1st opening part 11 from the 2nd opening part 12. FIG. It is the schematic diagram which showed the air flow and ventilation path when seeing FIG. 11 downward. It is a perspective view for demonstrating the structure of the air blower of 3rd Embodiment, and has shown the air flow which goes to the 2nd opening part 12 from the 3rd opening part 16. FIG. (A)-(c) is the schematic diagram which showed the air flow and ventilation path which can be changed about the air blower of 3rd Embodiment. It is a perspective view for demonstrating the structure and air flow of the air blower of 4th Embodiment. (A) And (b) is the schematic diagram which showed the air flow and ventilation path which can be changed about the air blower of 4th Embodiment.

Explanation of symbols

2 ... Rotating shaft, 10 ... Outer case, 11 ... First opening, 11a ... Enlarged opening,
12 ... 2nd opening part, 12a ... Enlarged opening part, 13 ... 1st channel | path, 14 ... 2nd channel | path,
DESCRIPTION OF SYMBOLS 15 ... Ceiling surface in outer side case 16 ... 3rd opening part 17 ... 3rd channel | path 20 ... Fan casing, 21 ... Suction inlet, 22 ... Air outlet, 23 ... Centrifugal fan,
24 ... Enlarged wall (partition part, first partition part), 24A ... Upper side part (partition part) of cylindrical part
27 ... An annular plane part (surface part of casing), 28 ... U-shaped wall part,
29 ... Expanding wall (second partition), 30 ... Internal space of outer case, 31 ... Ventilation path,
32 ... Suction side space, 33 ... Outlet side space, 50 ... Battery stack,
51 ... DC / DC converter (heat-generating component, electronic component)

Claims (7)

A centrifugal fan (23) that blows out air sucked in a direction along the rotation axis (2) in a centrifugal direction;
A fan casing (20) having a shape surrounding the centrifugal fan, wherein a suction port (21) for sucking air and a blower outlet (22) for blowing the sucked air are formed;
An outer case (10) having the fan casing therein and having at least a first opening (11) and a second opening (12) formed therein;
A first passage (13) connected to the first opening;
A second passage (14) connected to the second opening;
With
The fan casing is configured to be displaced with respect to the outer case so that the air outlet fits both the first opening and the second opening.
Furthermore, the fan casing faces the passage and the suction port that are connected to the one opening when the air outlet is in a position that matches one of the first opening and the second opening. A partition (24, 24A) that partitions the internal space (30) of the outer case;
The blower according to claim 1, wherein the partition of the partition portion forms an air passage (31) that allows the other opening and the one opening to communicate with each other via the suction port. The surface portion (27) of the fan casing in which the suction port is formed is provided at a position separated by a predetermined length with respect to the inner wall surface (15) of the opposed outer case,
Each of the first opening and the second opening includes an enlarged opening portion (11a, 12a) that opens largely toward the inner wall surface side of the outer case than the air outlet,
The said partition part is extended and provided in the inner wall surface side of the said outer side case from the peripheral part of the said blower outlet, The expansion wall (24) which covers the expansion opening part of each said opening part is characterized by the above-mentioned. The blower described in. The surface portion (27) of the fan casing in which the suction port is formed is provided at a position separated by a predetermined length with respect to the inner wall surface (15) of the opposed outer case,
Each of the first opening and the second opening includes an enlarged opening portion (11a, 12a) that opens largely toward the inner wall surface side of the outer case than the air outlet,
The partition portion is a wall portion (28) provided to extend from a surface portion of the fan casing around the suction port to an inner wall surface side of the outer case, and the inner space of the outer case is defined as the suction port and the The blower according to claim 1, wherein the blower is divided into a suction side space (32) facing the other opening and a blowout side space (33) facing the one opening. The outer case further has a third opening (16) connected to the third passage (17),
The fan casing is configured to be displaced with respect to the outer case so that the air outlet fits all of the first opening, the second opening, and the third opening,
Furthermore, the fan casing is
The passage and the suction port that are connected to the one opening when the air outlet is in a position that matches one of the first opening, the second opening, and the third opening A first partition that partitions the internal space of the outer case facing the second space, and a second partition (29) that closes one of the remaining openings so as not to communicate with the suction port. The blower according to claim 1, wherein the blower is provided. A blower according to any one of claims 1 to 4, and a battery stack (50) configured to connect and integrate a plurality of battery modules so as to be energized, and installed in the first passage, A heat-generating component (51) that is a component that radiates heat to the outside and is installed in the first passage,
Furthermore, the battery stack is installed between the heat generating component and the blower in the first passage.   The blower according to claim 5, wherein the heat generating component is an electronic component that is used for charging and discharging the battery module and outputs electric power adjusted by a switching power supply device. The air blower according to any one of claims 1 to 4 is provided as means for blowing air,
One of the said 1st channel | path and the said 2nd channel | path is connected to the vehicle interior space (100a), It comprised so that the other might be connected outside the vehicle, The vehicle air conditioner characterized by the above-mentioned.

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