WO2018180980A1 - Vehicle air-conditioner blowing apparatus - Google Patents

Vehicle air-conditioner blowing apparatus Download PDF

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Publication number
WO2018180980A1
WO2018180980A1 PCT/JP2018/011691 JP2018011691W WO2018180980A1 WO 2018180980 A1 WO2018180980 A1 WO 2018180980A1 JP 2018011691 W JP2018011691 W JP 2018011691W WO 2018180980 A1 WO2018180980 A1 WO 2018180980A1
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WO
WIPO (PCT)
Prior art keywords
air
blower
casing
motor
vehicle
Prior art date
Application number
PCT/JP2018/011691
Other languages
French (fr)
Japanese (ja)
Inventor
伯方　俊樹
正幸 志賀
藤本　和己
Original Assignee
株式会社日本クライメイトシステムズ
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Filing date
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Application filed by 株式会社日本クライメイトシステムズ filed Critical 株式会社日本クライメイトシステムズ
Publication of WO2018180980A1 publication Critical patent/WO2018180980A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices

Definitions

  • the present invention relates to a vehicle air-conditioning blower that is mounted on, for example, an automobile and blows air for air-conditioning, and particularly belongs to the technical field of a structure capable of simultaneously blowing air in a vehicle interior and air outside the vehicle interior.
  • an air conditioner mounted on a vehicle selects one of air in the vehicle interior (inside air) and air outside the vehicle interior (outside air) and blows it as air-conditioning air, a cooling heat exchanger and a heating heat exchanger. After the temperature is adjusted by the above, it is configured to be supplied to each part of the passenger compartment.
  • the casing of the air conditioning blower for vehicle air conditioning is formed with an inside air introduction port and an outside air introduction port, and an upper air passage and a lower air passage.
  • a blower fan is provided in each of the upper air passage and the lower air passage, and these two blower fans are driven by a common motor.
  • the casing is provided with an inside / outside air switching damper for opening and closing the inside air introduction port and the outside air introduction port, the inside air circulation mode for opening only the inside air introduction port by the inside / outside air switching damper, the outside air introduction mode for opening only the outside air introduction port, The inside / outside air two-layer flow mode that opens the inside air introduction port and the outside air introduction port can be switched.
  • the inside air introduced from the inside air introduction port flows into the upper air passage and the lower air passage, and when the outside air introduction mode is set, the upper air passage and the lower air passage.
  • the outside air introduced from the outside air introduction port flows and the inside / outside air two-layer flow mode is set, the outside air introduced from the outside air introduction port flows into the upper air passage while the inside air introduced from the inside air introduction port into the lower air passage Flows.
  • the present invention has been made in view of such points, and an object of the present invention is to prevent leakage even if water accumulates in the lower air passage.
  • the motor is covered with the lower bellmouth forming member.
  • the first invention is formed such that an inside air introduction port for introducing the air inside the vehicle interior and an outside air introduction port for introducing the air outside the vehicle compartment are opened to the outside, and both the inside air introduction port and the outside air introduction port are formed.
  • An upper layer blower fan arranged to extend in the vertical direction, a lower layer blower fan arranged so that a rotation center line extends in the vertical direction in the lower layer air passage, the upper layer blower fan, and the lower layer blower fan
  • the air in the upper layer air passage is blown as air-conditioning air by the upper layer blowing fan, and the lower layer air passage is blown by the lower layer blowing fan.
  • the motor is attached to the bottom wall portion of the casing so that the rotation shaft protrudes upward, and the upper layer is mounted on the rotation shaft.
  • the blower fan and the lower fan are connected to each other, and the casing is provided with a lower scroll portion for housing the lower fan, which is separated from the bottom wall portion, and is provided inside the lower scroll portion.
  • a lower bellmouth forming member that forms a communicating lower bellmouth mouth is provided, and the lower bellmouth forming member is provided with a motor cover that covers the motor from above, and the motor cover and the bottom wall of the casing
  • a sealing material is provided between the two portions.
  • the inside air circulation mode in which the inside air is introduced from the inside air introduction port is set.
  • the upper layer blowing fan and the lower layer blowing fan rotate, so that the inside air introduced from the inside air introduction port flows through the upper layer air passage and the lower layer air passage and is blown as air for air conditioning.
  • the outside air introduction mode in which outside air is introduced from the outside air introduction port is set.
  • the upper layer blowing fan and the lower layer blowing fan rotate, so that the outside air introduced from the outside air inlet flows through the upper layer air passage and the lower layer air passage and is blown as air for air conditioning.
  • the inside air / outside air inlet and the outside air inlet are opened by the operation of the inside / outside air switching damper, the inside / outside air two-layer flow mode is set, and the upper layer blowing fan and the lower layer blowing fan rotate to be introduced from the outside air introduction port.
  • the outside air flows through one of the upper air passage and the lower air passage, and the inside air introduced from the inside air inlet flows through the other and is blown as air for air conditioning.
  • a motor cover is provided on the lower bell mouth forming member that forms the lower bell mouth opening communicating with the inside of the lower scroll part, and the motor cover is provided between the motor cover and the bottom wall of the casing. Since the sealing material is provided in the water, the water accumulated in the lower air passage can be prevented from leaking to the outside.
  • the motor cover portion is provided below the lower bellmouth mouth in the lower bellmouth forming member so as to extend in a radial direction of the lower bellmouth mouth, and the casing
  • the bottom wall portion is formed with a fitting hole into which the lower portion of the motor cover portion is fitted.
  • the third invention is characterized in that, in the second invention, the sealing material is provided between a lower portion of the motor cover and the fitting hole.
  • the fourth invention is characterized in that, in the second invention, the lower portion of the motor cover is formed so as to be fitted to a flange of the motor.
  • the lower part of the motor cover is fitted to the flange of the motor, so that it is not necessary to provide a water stop structure in the motor itself.
  • the fifth invention is characterized in that, in the fourth invention, the lower part of the motor cover and the flange of the motor are fastened and fixed to the casing by a common fastening member.
  • This configuration reduces the man-hours for assembling the motor cover and the motor to the casing.
  • the lower bellmouth mouth is formed above the lower bellmouth forming member, and the radially outer portion of the lower bellmouth mouth in the lower bellmouth forming member is It is characterized by being fitted to the casing.
  • the lower bellmouth forming member is stabilized in the casing by fitting the upper portion of the lower bellmouth forming member into the casing.
  • the motor cover portion is formed with a vertical plate portion extending along the rotation axis direction of the motor, and the vertical plate portion surrounds the rotation shaft. It is arranged.
  • the vertical plate portion can suppress the water accumulated in the lower air passage from flowing to the motor side.
  • a lower surface of the motor cover is provided with a facing surface disposed so as to face the inner peripheral surface of the fitting hole. It arrange
  • the sealing material is further compressed between the facing surface of the motor cover portion and the inner peripheral surface of the fitting hole, so that the sealing performance is further enhanced.
  • the sealing material is provided between the motor cover portion of the lower bellmouth forming member and the bottom wall portion of the casing, it is possible to prevent water accumulated in the lower air passage from leaking to the outside. it can.
  • the lower bellmouth forming member since the lower part of the motor cover portion of the lower bellmouth forming member is fitted into the fitting hole in the bottom wall portion of the casing, the lower bellmouth forming member can be firmly fixed to the casing. .
  • the sealing material is provided between the lower portion of the motor cover and the fitting hole, it is difficult for water accumulated in the lower air passage and air in the lower air passage to leak out.
  • the fourth invention since the lower part of the motor cover is fitted to the flange of the motor, it is not necessary to provide a water stop structure in the motor itself, and the cost of the motor can be reduced.
  • the lower part of the motor cover and the flange of the motor can be fastened and fixed to the casing by the common fastening member, so that the number of assembling steps can be reduced.
  • the lower bellmouth forming member since the upper part of the lower bellmouth forming member is fitted into the casing, the lower bellmouth forming member can be stabilized inside the casing.
  • the vertical plate portion is formed in the motor cover portion, it is possible to suppress the water accumulated in the lower air passage from flowing to the motor side.
  • the eighth aspect of the invention it is possible to reliably compress the sealing material by fitting the lower portion of the motor cover portion into the fitting hole, thereby obtaining high sealing performance.
  • FIG. 4 is a schematic view of a cross section taken along line VIII-VIII in FIG. 3. It is the A section enlarged view in FIG.
  • FIG. 1 is a perspective view of a vehicle air-conditioning blower 1 according to an embodiment of the present invention
  • FIG. 2 is an exploded perspective view of the vehicle air-conditioning blower 1 according to an embodiment of the present invention.
  • the vehicle air-conditioning blower 1 is disposed, for example, in a passenger compartment of an automobile to blow air-conditioning air, and constitutes a vehicle air-conditioning device together with an air-conditioning unit (not shown).
  • the air conditioning unit includes a cooling heat exchanger, a heating heat exchanger, an air mix damper, a plurality of blowing direction switching dampers, and an air conditioning casing that houses these.
  • the air-conditioning air blown from the vehicle air-conditioning blower 1 is introduced into the inside of the air-conditioning casing and passes through the cooling heat exchanger and the heating heat exchanger to be conditioned air at a desired temperature. It is supplied to each part of the passenger compartment according to the blowing mode set by the switching damper.
  • a defroster outlet, a vent outlet, a heat outlet, and the like are formed in the air conditioning casing.
  • the temperature of the conditioned air can be changed by the amount of air passing through the heating heat exchanger set by the air mix damper.
  • the front side of the vehicle is simply referred to as “front”
  • the rear side of the vehicle is simply referred to as “rear”
  • the left side of the vehicle is simply referred to as “left”
  • the right side of the vehicle is simply referred to as “Right”, but this is only defined for convenience of explanation and does not limit the present invention.
  • the vehicle air-conditioning blower 1 is housed together with an air-conditioning unit inside an instrument panel provided at a front end portion of a vehicle interior (not shown).
  • the air-conditioning unit is disposed at a substantially central portion in the left-right direction inside the instrument panel, while the vehicle air-conditioning blower 1 is located on the passenger seat side of the air-conditioning unit inside the instrument panel (left side in the case of a right-hand drive vehicle). In the case of a left-hand drive vehicle, it is arranged on the right side). In this embodiment, it is arranged on the right side.
  • the vehicle in which the vehicle air-conditioning blower 1 is provided includes a dash panel (partition member) for partitioning the engine room and the vehicle compartment.
  • the engine room is provided in the front part of the vehicle, and an engine, a transmission, and the like are arranged therein.
  • the dash panel extends substantially in the vertical direction.
  • a cowl extending in the left-right direction is disposed on the upper portion of the dash panel.
  • the cowl is formed with a communication port communicating with the outside of the passenger compartment. Since the cowl is disposed outside the passenger compartment, rainwater, water during car washing, snow, etc. may enter the cowl.
  • the vehicle air conditioning blower 1 rotationally drives the upper layer blower fan 40, the lower layer blower fan 50, the upper layer blower fan 40, and the lower layer blower fan 50.
  • a motor 65, a first inside / outside air switching damper 4, a second inside / outside air switching damper 5, an air filter 6, an inside / outside air switching actuator 7, and a blower casing 8 are provided.
  • the blower casing 8 is configured by combining a plurality of resin members, for example, and includes an upper layer blower fan 40, a lower layer blower fan 50, a first inside / outside air switching damper 4, and a second inside / outside air switching. A damper 5 and an air filter 6 are accommodated.
  • the upper layer blowing fan 40 and the lower layer blowing fan 50 are arranged so as to be lined up and down.
  • the outside wall inlet 9 for introducing the air outside the vehicle compartment (outside air) into the blowing casing 8 is formed in the upper wall portion of the blowing casing 8.
  • An outside air introduction duct 10 extending upward and forward is provided at the peripheral edge of the outside air introduction port 9 in the blower casing 8, and an upstream end of the outside air introduction duct 10 is connected to a communication port of the cowl. That is, the outside air introduction port 9 communicates with the outside of the vehicle compartment via the outside air introduction duct 10 and the communication port.
  • the outside air inlet 9 can have a shape that is long in the left-right direction.
  • a front side air inlet 11A and a rear side air inlet 11B are formed in the front and rear portions of the upper wall portion of the blower casing 8, respectively.
  • the front side air introduction port 11 ⁇ / b> A and the rear side air introduction port 11 ⁇ / b> B are opened in the vehicle interior, and are for introducing air (inside air) in the vehicle interior into the blower casing 8.
  • the front side air introduction port 11A and the rear side air introduction port 11B can also have a shape that is long in the left-right direction.
  • the front side air introduction port 11 ⁇ / b> A and the rear side air introduction port 11 ⁇ / b> B can also be formed at the upper part of the left and right side walls of the blower casing 8.
  • F is provided.
  • the filter 6 is disposed in the filter housing space F.
  • the filter 6 closes the filter insertion portion of the blast casing 8 and the filter medium 6a for air filtration formed in pleats, the frame 6b provided so as to surround the filter medium 6a and integrated with the filter medium 6a.
  • a lid 6c The filter 6 is disposed so as to extend in a substantially horizontal direction in the filter housing space F, and is supported on the inner surface of the blower casing 8.
  • An upper air passage 17 and a lower air passage 18 are formed below the filter housing space F inside the peripheral wall portion 8b of the blower casing 8 (downstream in the air flow direction).
  • the upstream end of the upper air passage 17 communicates with both the outside air introduction port 9 and the front side inside air introduction port 11A through the filter housing space F.
  • the upstream end of the lower air passage 18 communicates with both the outside air introduction port 9 and the rear side inside air introduction port 11B through the filter housing space F.
  • an upper layer scroll portion 13 is formed at a portion away from the filter housing space F, and the lower layer scroll portion 14 is adjacent to the lower side of the upper layer scroll portion 13 and is located below. Is formed.
  • the upper scroll part 13 and the lower scroll part 14 are located substantially concentrically. Moreover, the lower wall part of the upper scroll part 13 and the upper wall part of the lower scroll part 14 are made common.
  • An upper bell mouth port 13a is opened upward on the upper wall portion of the upper scroll portion 13.
  • the upper bell mouth port 13a and the lower surface of the filter 6 face each other with a predetermined gap.
  • a lower partition plate 15 projecting upward is provided at the rear edge of the upper bellmouth mouth 13a.
  • the lower partition plate 15 extends into the filter housing space F, whereby the filter housing space F and the space downstream of the filter housing space F are divided into two on the left and right.
  • the lower scroll portion 14 is provided away from the bottom wall portion 8a of the blower casing 8 upward.
  • a lower air passage 18 is formed between the lower wall portion 14 a of the lower scroll portion 14 and the bottom wall portion 8 a of the blower casing 8.
  • a substantially circular opening 14 b is formed in the lower wall portion 14 a of the lower layer scroll portion 14.
  • the diameter of the opening 14b is set to be larger than the diameter of the upper bell mouth port 13a.
  • a fitting groove 14c is formed at the peripheral edge of the opening 14b in the lower wall portion 14a. In this fitting groove 14c, a radially outer portion of the lower bellmouth mouth 61a at the upper portion of the lower bellmouth forming member 60 described later is fitted.
  • the upper partition plate 16 is disposed inside the blower casing 8 so as to be positioned in the vicinity of the upward extension line of the lower partition plate 15.
  • the upper partition plate 16 extends upward, and the upper partition plate 16 divides the space upstream of the filter housing space F in the air flow direction into two in the front-rear direction.
  • the upper partition plate 16 is located closer to the rear side than the central portion in the front-rear direction of the blower casing 8.
  • the space in front of the lower partition plate 15 and the upper partition plate 16 in the blower casing 8 is wider than the space behind the lower partition plate 15 and the upper partition plate 16.
  • the space in front of the lower partition plate 15 and the upper partition plate 16 in the blower casing 8 is the upstream side of the upper air passage 17, and the upstream side of the upper air passage 17 extends to the upper bell mouth port 13a. It extends.
  • the downstream side of the upper layer air passage 17 extends from the upper layer bell mouth port 13 a to the inside of the upper layer scroll part 13, extends in the circumferential direction inside the upper layer scroll part 13, and then extends to the left side.
  • the space behind the lower partition plate 15 and the upper partition plate 16 is a lower air passage 18.
  • the upstream side of the lower layer air passage 18 extends downward between the outer surfaces of the upper layer scroll portion 13 and the lower layer scroll portion 14 and the inner surface of the peripheral wall portion 8b of the blower casing 8, and reaches the bottom wall portion 8a of the blower casing 8. Yes. That is, the lower layer air passage 18 extends below the upper layer air passage 17. The downstream side of the lower layer air passage 18 extends to the inside of the lower layer scroll portion 14.
  • the bottom wall 8a of the blower casing 8 is formed with a fitting hole 8c (shown in FIG. 9) into which a lower portion of a motor cover 62 of a lower bellmouth forming member 60 described later is fitted.
  • the fitting hole 8c is set to be larger than the upper bell mouth port 13a.
  • the downstream side of the lower layer air passage 18 extends to the inside of the lower layer scroll part 14 and then extends in the circumferential direction inside the lower layer scroll part 14 and then to the left side.
  • the downstream side of the lower air passage 18 is located below the downstream side of the upper air passage 17.
  • a duct portion (not shown) of the air conditioning casing is connected to the downstream side of the lower air passage 18 and the downstream side of the upper air passage 17.
  • the motor 65 is attached to the lower part of the casing 8.
  • the motor 65 has an output shaft (rotating shaft) 65a, a motor flange 65b fastened and fixed to the bottom wall portion 8a of the blower casing 8, and a motor main body 65c made of a rotor, a stator or the like.
  • the output shaft 65a of the motor 65 is disposed so that the output shaft 65a protrudes upward and is positioned inside the blower casing 8 with the motor flange 65b fastened and fixed to the bottom wall portion 8a of the blower casing 8.
  • the output shaft 65 a extends from the lower scroll part 14 of the blower casing 8 until it reaches the inside of the upper scroll part 13.
  • An upper layer blowing fan 40 and a lower layer blowing fan 50 are connected to the output shaft 65a so as not to be relatively rotatable.
  • the upper layer blowing fan 40 and the lower layer blowing fan 50 are each formed by a resin material and are separated. That is, the upper layer blower fan 40 is integrally molded by an injection molding method using a dedicated mold, and the lower layer blower fan 50 is also injected entirely using a dedicated mold. It is integrally formed by a molding method. The upper layer blowing fan 40 and the lower layer blowing fan 50 may be integrally formed.
  • the upper air blowing fan 40 is a centrifugal fan, and is disposed in the upper scroll portion 13, that is, in the upper air passage 17 so that the rotation center line extends in the vertical direction.
  • the upper air blowing fan 40 rotates to blow out the air sucked from above in the radial direction.
  • the lower layer blowing fan 50 is a centrifugal fan, and has a posture in which the rotation center line extends vertically in the lower layer scroll portion 14, that is, in the lower layer air passage 18. It is arranged to become.
  • the lower-layer blower fan 50 is rotated so that the air sucked from below is blown out in the radial direction.
  • the fan diameter of the upper layer blower fan 40 is set smaller than the fan diameter of the lower layer blower fan 50, but is not limited to this, and is arbitrarily set to correspond to various design requirements.
  • the fan diameter of the upper layer blowing fan 40 and the fan diameter of the lower layer blowing fan 50 can be made the same. The same applies to the fan height. Further, the material of the upper layer blowing fan 40 and the lower layer blowing fan 50 can be the same or different.
  • the first inside / outside air switching damper 4 and the second inside / outside air switching damper 5 shown in FIGS. 2, 7 and 8 operate independently.
  • the first inside / outside air switching damper 4 is a rotary damper that opens and closes the outside air introduction port 9 and the front side inside air introduction port 11A.
  • the second inside / outside air switching damper 5 is a rotary damper that opens and closes the outside air introduction port 9 and the rear side inside air introduction port 11B.
  • the first inside / outside air switching damper 4 is disposed on the front side in the blower casing 8 and on the upstream side of the upper air passage 17, and only the outside air is opened and closed by opening and closing the outside air introduction port 9 and the front side inside air introduction port 11A. Any one of the inside air and both is selected and allowed to flow into the upper air passage 17.
  • the second inside / outside air switching damper 5 is disposed in the rear side of the blower casing 8 and on the upstream side of the lower air passage 18 to open and close the outside air introduction port 9 and the rear side inside air introduction port 11B.
  • the first inside / outside air switching damper 4 includes a closing plate portion 4a extending in the left-right direction, end plate portions 4b extending in the radial direction from both left and right ends of the closing plate portion 4a, and each end plate portion 4b. And a rotating shaft portion 4c protruding in the left-right direction.
  • the rotation shaft portion 4 c is rotatably supported on the left and right side walls of the blower casing 8. As shown in FIG. 8, when the first inside / outside air switching damper 4 rotates around the rotation shaft portion 4c toward the front side, the outside air introduction port 9 is opened by the closing plate portion 4a and the front side inside air introduction port 11A. Is closed by the blocking plate portion 4a, and only outside air can be introduced.
  • the second inside / outside air switching damper 5 includes a closing plate portion 5a extending in the left-right direction and an end plate portion extending in the radial direction from both ends in the left-right direction of the closing plate portion 5a. 5b and a rotating shaft portion 5c protruding in the left-right direction from each end plate portion 5b.
  • the rotation shaft portion 5 c is supported so as to be rotatable with respect to a portion on the rear side of the first inside / outside air switching damper 4 on the left and right side walls of the blower casing 8. As shown in FIG.
  • the outside air introduction port 9 is opened by the closing plate portion 5a and the rear side inside air is introduced.
  • the mouth 11B is closed by the closing plate portion 5a, so that only outside air can be introduced.
  • the outside air introduction port 9 is closed by the closing plate portion 5a and the rear side inside air introduction port 11B. Is opened by the blocking plate portion 5a, and only the inside air can be introduced.
  • the first inside / outside air switching damper 4 and the second inside / outside air switching damper 5 are driven by the electric actuator 100 and the link members 101-103.
  • a radially extending link member 102 is fixed to the rotating shaft portion 4 c of the first inside / outside air switching damper 4, and a radially extending link member 103 is fixed to the rotating shaft portion 5 c of the second inside / outside air switching damper 5.
  • a plate-like link member 101 is engaged with these link members 102 and 103.
  • a driving force of the electric actuator 100 is input to the plate-like link member 101 as a rotational force, and the link members 102 and 103 are individually operated by the turning operation of the plate-like link member 101, thereby the first inside / outside air switching damper. 4 and the second inside / outside air switching damper 5 can be opened and closed separately. Since the structures of the link members 101 to 103 are well known in the art, a detailed description thereof will be omitted.
  • a lower bellmouth forming member 60 is provided inside the blower casing 8.
  • the lower bellmouth forming member 60 is a member for forming the lower bellmouth mouth 61a communicating with the inside of the lower scroll portion 14, and covers the upper plate portion 61 having the lower bellmouth mouth 61a and the motor 65 from above.
  • the motor cover part 62 and the connection part 63 for connecting the upper board part 61 and the motor cover part 62 are provided.
  • the upper plate portion 61, the motor cover portion 62, and the connecting portion 63 are integrally formed of a resin material.
  • the upper plate portion 61 is formed in a disk shape extending in a substantially horizontal direction.
  • the lower bellmouth mouth 61 a is formed inside the upper plate portion 61.
  • On the outer peripheral edge portion (the radially outer portion of the lower bellmouth mouth 61a of the lower bellmouth forming member 60) of the upper plate portion 61 is formed a ridge portion 61b that protrudes upward and extends annularly in the circumferential direction.
  • the protruding portion 61b is inserted from below into a fitting groove 14c formed in the lower wall portion 14a of the lower layer scroll portion 14 so as to be fitted.
  • the upper part in the lower bellmouth formation member 60 is fixed to the ventilation casing 8.
  • since the protrusion 61b is fitted over the entire circumference of the fitting groove 14c, air leakage from between the protrusion 61b and the fitting groove 14c is suppressed.
  • the motor cover portion 62 is provided so as to extend in the radial direction of the lower bellmouth mouth 61a below the lower bellmouth mouth 61a in the lower bellmouth forming member 60. As shown in FIG. 9, an annular plate portion 62 a extending along the output shaft 65 a direction (vertical direction) of the motor 65 is formed at the lower portion of the motor cover portion 62. The annular plate portion 62 a extends in an annular shape along the fitting hole 8 c in the bottom wall portion 8 a of the blower casing 8.
  • the outer peripheral surface of the annular plate portion 62a is an opposing surface 62b that is disposed so as to oppose the inner peripheral surface of the fitting hole 8c of the blower casing 8.
  • a sealing material S is disposed between the facing surface 62b and the inner peripheral surface of the fitting hole 8c.
  • the sealing material S is compressed by the facing surface 62b and the inner peripheral surface of the fitting hole 8c.
  • the sealing material S adheres to the entire periphery of the opposing surface 62b and the entire periphery of the inner peripheral surface of the fitting hole 8c, and high sealing performance is obtained.
  • elastic materials such as foaming urethane and rubber
  • the lower part of the annular plate part 62a is formed so as to be fitted to a motor flange 65b of the motor 65.
  • an annular groove 65d is formed on the outer peripheral side of the upper surface of the motor flange 65b. It fits in the state where the lower part of the cyclic
  • a water stop structure such as a sealing material is not provided between the annular groove 65d and the lower portion of the annular plate portion 62a.
  • the motor cover portion 62 is formed with a first vertical plate portion 62c, a second vertical plate portion 62d, and a third vertical plate portion 62e extending along the direction of the output shaft 65a of the motor 65.
  • the first vertical plate portion 62c, the second vertical plate portion 62d, and the third vertical plate portion 62e protrude upward from the upper surface of the motor cover portion 62, and are arranged so as to surround the output shaft 65a.
  • the first vertical plate portion 62c is disposed below the second vertical plate portion 62d and the third vertical plate portion 62e and is radially outward from the second vertical plate portion 62d and the third vertical plate portion 62e. Has been placed.
  • the second vertical plate portion 62d is disposed between the first vertical plate portion 62c and the third vertical plate portion 62e.
  • the third vertical plate portion 62e is disposed inward in the radial direction and is close to the output shaft 65a.
  • the upper ends of the second vertical plate portion 62d and the third vertical plate portion 62e have the same height.
  • a plurality of connecting portions 63 are provided and extend from the upper plate portion 61 to the motor cover portion 62.
  • the plurality of connecting portions 63 are arranged at intervals in the circumferential direction, and air passes between the adjacent connecting portions 63.
  • a mounting plate portion 62f is formed at the lower portion of the motor cover portion 62 so as to extend outward in the radial direction.
  • the mounting plate part 62f and the motor flange 65b of the motor cover part 62 are fastened and fixed to the bottom wall part 8a of the blower casing 8 by a common fastening member 69 (shown in FIG. 3).
  • the fastening member 69 is, for example, a screw.
  • the fastening member 69 can be screwed into the bottom wall portion 8a of the blower casing 8 through the motor flange 65b and the mounting plate portion 62f from below. Thereby, the assembly man-hour at the time of assembling the motor cover part 62 and the motor 65 to the ventilation casing 8 can be reduced.
  • an outside air introduction mode for introducing outside air into the upper air passage 17 and the lower air passage 18 by independently operating the first inside / outside air switching damper 4 and the second inside / outside air switching damper 5;
  • By setting the inside / outside air two-layer flow mode in winter, relatively dry outside air is supplied to the defrost outlet, and the windshield glass is well cleared, while relatively warm inside air is supplied to the heat outlet. Heating efficiency can be improved.
  • one of the upper layer blower fan 40 and the lower layer blower fan 50 such as the fan diameter and fan height of one blower fan Dimensional changes may be made.
  • the upper layer blowing fan 40 and the lower layer blowing fan 50 are separate bodies, even if the size of one blowing fan is changed, the other blowing fan is not affected. In addition, it is not necessary to newly install the other blower fan, and it is possible to cope with it at low cost.
  • the upper layer blowing fan 40 and the lower layer blowing fan 50 are separate bodies, a slide mold as in the case of integral molding becomes unnecessary, and the mold cost can be reduced. This effect is an effect when the upper layer blower fan 40 and the lower layer blower fan 50 are separately formed. However, when the upper layer blower fan 40 and the lower layer blower fan 50 are integrally formed, the number of parts is reduced. Can be achieved.
  • the motor cover 62 is provided on the lower bellmouth forming member 60 that forms the lower bellmouth mouth 61a communicating with the inside of the lower scroll portion 14 to cover the motor 65 from above. Therefore, it is difficult for water accumulated in the lower air passage 18 to enter the motor 65. Therefore, it is possible to prevent the motor 65 from malfunctioning.
  • the lower portion of the motor cover portion 62 of the lower bellmouth forming member 60 is fitted into the fitting hole 8 c of the bottom wall portion 8 a of the blower casing 8.
  • the lower bellmouth forming member 60 can be firmly fixed to the blower casing 8.
  • the sealing material S is disposed between the facing surface 62b provided at the lower part of the motor cover 62 and the inner peripheral surface of the fitting hole 8c of the blower casing 8, the water accumulated in the lower air passage 18 is removed. It is difficult to leak from between the lower part of the motor cover 62 and the fitting hole 8c, and the air in the lower air passage 18 is also difficult to leak from between the lower part of the motor cover 62 and the fitting hole 8c.
  • the vehicle air-conditioning blower according to the present invention can be used, for example, as a blower unit of a vehicle air-conditioner.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

A motor 65 is attached to the bottom wall 8a of a casing 8. In the casing 8, a lower layer scroll part 14 for housing a lower layer blowing fan 50 is provided separate and upward from the bottom wall 8a. A lower layer bell mouth forming member 60 for forming a lower layer bell mouth 61a connected to the inside of the lower layer scroll part 14 is provided. In the lower layer bell mouth forming member 60, a motor cover 62 for covering the motor 65 from above is provided.

Description

車両空調用送風装置Ventilator for vehicle air conditioning
　本発明は、例えば自動車等に搭載されて空調用空気を送風する車両空調用送風装置に関し、特に、車室内の空気と車室外の空気とを同時に送風可能な構造の技術分野に属する。 The present invention relates to a vehicle air-conditioning blower that is mounted on, for example, an automobile and blows air for air-conditioning, and particularly belongs to the technical field of a structure capable of simultaneously blowing air in a vehicle interior and air outside the vehicle interior.
　一般に、車両に搭載される空調装置は、車室内の空気（内気）と車室外の空気（外気）の一方を選択して空調用空気として送風し、冷却用熱交換器及び加熱用熱交換器によって温度調節した後に、車室の各部に供給するように構成されている。 In general, an air conditioner mounted on a vehicle selects one of air in the vehicle interior (inside air) and air outside the vehicle interior (outside air) and blows it as air-conditioning air, a cooling heat exchanger and a heating heat exchanger. After the temperature is adjusted by the above, it is configured to be supplied to each part of the passenger compartment.
　近年では、空調用空気を送風する車両空調用送風装置として、上記内気のみを送風する内気循環モードと、上記外気のみを送風する外気導入モードの他、内気と外気の両方を送風する内外気２層流モードにも切り替えられる装置が実用化されている。すなわち、特許文献１～３に開示されているように、車両空調用送風装置のケーシングには、内気導入口と外気導入口が形成されるとともに、上層空気通路と下層空気通路が形成されている。上層空気通路と下層空気通路の内部には、それぞれ送風用ファンが設けられており、これら２つの送風用ファンは共通のモーターによって駆動される。また、ケーシングには、内気導入口及び外気導入口を開閉する内外気切替ダンパが設けられ、この内外気切替ダンパによって内気導入口のみを開く内気循環モード、外気導入口のみを開く外気導入モード、内気導入口及び外気導入口を開く内外気２層流モードの切替が可能になっている。そして、上記２つの送風用ファンを回転させて内気循環モードにすると上層空気通路と下層空気通路に内気導入口から導入された内気が流れ、また、外気導入モードにすると上層空気通路と下層空気通路に外気導入口から導入された外気が流れ、さらに、内外気２層流モードにすると上層空気通路に外気導入口から導入された外気が流れる一方、下層空気通路に内気導入口から導入された内気が流れる。 In recent years, as a vehicle air-conditioning blower that blows air for air conditioning, in addition to the inside air circulation mode for blowing only the inside air and the outside air introduction mode for blowing only the outside air, the inside and outside air 2 that blows both the inside air and the outside air 2. Devices that can be switched to the laminar flow mode have been put into practical use. That is, as disclosed in Patent Documents 1 to 3, the casing of the air conditioning blower for vehicle air conditioning is formed with an inside air introduction port and an outside air introduction port, and an upper air passage and a lower air passage. . A blower fan is provided in each of the upper air passage and the lower air passage, and these two blower fans are driven by a common motor. Further, the casing is provided with an inside / outside air switching damper for opening and closing the inside air introduction port and the outside air introduction port, the inside air circulation mode for opening only the inside air introduction port by the inside / outside air switching damper, the outside air introduction mode for opening only the outside air introduction port, The inside / outside air two-layer flow mode that opens the inside air introduction port and the outside air introduction port can be switched. Then, when the two blower fans are rotated to enter the inside air circulation mode, the inside air introduced from the inside air introduction port flows into the upper air passage and the lower air passage, and when the outside air introduction mode is set, the upper air passage and the lower air passage When the outside air introduced from the outside air introduction port flows and the inside / outside air two-layer flow mode is set, the outside air introduced from the outside air introduction port flows into the upper air passage while the inside air introduced from the inside air introduction port into the lower air passage Flows.
特開２０００－２９６７１０号公報JP 2000-296710 A 特開２００１－２０６０４４号公報JP 2001-206044 A 特開２０１１－２０１５０１号公報JP 2011-201501 A
　ところで、特許文献１～３のように内外気２層流モードへの切替が可能な送風装置によれば、例えば暖房時に内外気２層流モードにすることにより、上層空気通路に導入された低湿度の外気をフロントウインド近傍に供給して曇りを抑制しながら、下層空気通路に導入された内気を循環させて足元近傍に供給して暖房効率を向上できるという利点がある。 By the way, according to the blower capable of switching to the inside / outside air two-layer flow mode as in Patent Documents 1 to 3, for example, by switching to the inside / outside air two-layer flow mode during heating, There is an advantage that it is possible to improve the heating efficiency by supplying the outside air of humidity to the vicinity of the front window and circulating the inside air introduced into the lower air passage and supplying it to the vicinity of the feet while suppressing fogging.
　しかしながら、内外気２層流モードが可能な送風装置の場合、特に下層空気通路の内部に水が溜まりやすく、溜まった水を排出しにくいという問題がある。すなわち、外気導入時には外気導入口が開かれるのであるが、外気導入口が開かれると雨水や洗車時の水が外気導入口からケーシングの内部に浸入し、この水が重力によって下層空気通路に流入してしまい、ケーシングの底壁部に溜まることになる。ケーシングの底壁部に溜まった水は送風用ファンが回転しても全てを吸い出すことはできず、水が下層空気通路に溜まったままとなりやすい。また、下層空気通路に溜まった水を排水するための排水用通路を設けることが考えられるが、排水用通路を設けたとしても、送風用ファンが回転すると排水用通路内が負圧になるので、下層空気通路に一旦水が溜まると排水することは困難である。 However, in the case of a blower capable of a two-layer flow mode for inside and outside air, there is a problem that water tends to accumulate particularly in the lower air passage and it is difficult to discharge the accumulated water. In other words, when the outside air is introduced, the outside air inlet is opened, but when the outside air inlet is opened, rainwater and water during car washing enter the inside of the casing from the outside air inlet, and this water flows into the lower air passage by gravity. As a result, it accumulates on the bottom wall of the casing. The water collected on the bottom wall portion of the casing cannot be sucked out even when the blower fan rotates, and the water tends to remain in the lower air passage. In addition, it is conceivable to provide a drainage passage for draining water accumulated in the lower air passage, but even if a drainage passage is provided, if the blower fan rotates, the inside of the drainage passage becomes negative pressure. Once water has accumulated in the lower air passage, it is difficult to drain.
　本発明は、かかる点に鑑みてなされたものであり、その目的とするところは、下層空気通路に水が溜まったとしても外部に漏れ出さないようにすることにある。 The present invention has been made in view of such points, and an object of the present invention is to prevent leakage even if water accumulates in the lower air passage.
　上記目的を達成するために、本発明では、下層ベルマウス形成部材によってモーターを覆うようにした。 In order to achieve the above object, in the present invention, the motor is covered with the lower bellmouth forming member.
　第１の発明は、車室内の空気を導入する内気導入口と、車室外の空気を導入する外気導入口とが外部に開放するように形成され、上記内気導入口及び上記外気導入口の両方に連通する上層空気通路及び下層空気通路が内部に形成されるとともに、上記内気導入口及び上記外気導入口を開閉する内外気切替ダンパを有するケーシングと、上記上層空気通路に回転中心線が上下方向に延びるように配設される上層送風用ファンと、上記下層空気通路に回転中心線が上下方向に延びるように配設される下層送風用ファンと、上記上層送風用ファン及び上記下層送風用ファンを回転駆動するモーターとを備え、上記上層送風用ファンによって上記上層空気通路内の空気を空調用空気として送風し、上記下層送風用ファンによって上記下層空気通路内の空気を空調用空気として送風するように構成された車両空調用送風装置において、上記ケーシングの底壁部には、回転軸が上方へ突出するように上記モーターが取り付けられ、該回転軸に上記上層送風用ファン及び上記下層送風用ファンが連結され、上記ケーシングには、上記下層送風用ファンを収容する下層スクロール部が上記底壁部から上方に離れて設けられるとともに、該下層スクロール部の内部に連通する下層ベルマウス口を形成する下層ベルマウス形成部材が設けられ、上記下層ベルマウス形成部材には、上記モーターを上方から覆うモーター覆い部が設けられ、上記モーター覆い部と上記ケーシングの底壁部との間にはシール材が設けられていることを特徴とする。 The first invention is formed such that an inside air introduction port for introducing the air inside the vehicle interior and an outside air introduction port for introducing the air outside the vehicle compartment are opened to the outside, and both the inside air introduction port and the outside air introduction port are formed. An upper air passage and a lower air passage communicating with each other, and a casing having an inside / outside air switching damper for opening and closing the inside air introduction port and the outside air introduction port, and a rotation center line in the upper layer air passage in a vertical direction An upper layer blower fan arranged to extend in the vertical direction, a lower layer blower fan arranged so that a rotation center line extends in the vertical direction in the lower layer air passage, the upper layer blower fan, and the lower layer blower fan The air in the upper layer air passage is blown as air-conditioning air by the upper layer blowing fan, and the lower layer air passage is blown by the lower layer blowing fan. In the vehicle air-conditioning blower configured to blow air as air-conditioning air, the motor is attached to the bottom wall portion of the casing so that the rotation shaft protrudes upward, and the upper layer is mounted on the rotation shaft. The blower fan and the lower fan are connected to each other, and the casing is provided with a lower scroll portion for housing the lower fan, which is separated from the bottom wall portion, and is provided inside the lower scroll portion. A lower bellmouth forming member that forms a communicating lower bellmouth mouth is provided, and the lower bellmouth forming member is provided with a motor cover that covers the motor from above, and the motor cover and the bottom wall of the casing A sealing material is provided between the two portions.
　この構成によれば、内外気切替ダンパの動作によって内気導入口を開き、かつ、外気導入口を閉じると、内気導入口から内気が導入される内気循環モードになる。内気循環モードでは、上層送風用ファン及び下層送風用ファンが回転することで、内気導入口から導入された内気が上層空気通路及び下層空気通路を流れて空調用空気として送風される。また、内外気切替ダンパの動作によって内気導入口を閉じ、かつ、外気導入口を開くと、外気導入口から外気が導入される外気導入モードになる。外気導入モードでは、上層送風用ファン及び下層送風用ファンが回転することで、外気導入口から導入された外気が上層空気通路及び下層空気通路を流れて空調用空気として送風される。さらに、内外気切替ダンパの動作によって内気導入口及び外気導入口を開くと、内外気２層流モードになり、上層送風用ファン及び下層送風用ファンが回転することで、外気導入口から導入された外気が上層空気通路及び下層空気通路の一方を流れ、内気導入口から導入された内気が他方を流れ、空調用空気として送風される。 According to this configuration, when the inside air introduction port is opened by the operation of the inside / outside air switching damper and the outside air introduction port is closed, the inside air circulation mode in which the inside air is introduced from the inside air introduction port is set. In the inside air circulation mode, the upper layer blowing fan and the lower layer blowing fan rotate, so that the inside air introduced from the inside air introduction port flows through the upper layer air passage and the lower layer air passage and is blown as air for air conditioning. Further, when the inside air introduction port is closed and the outside air introduction port is opened by the operation of the inside / outside air switching damper, the outside air introduction mode in which outside air is introduced from the outside air introduction port is set. In the outside air introduction mode, the upper layer blowing fan and the lower layer blowing fan rotate, so that the outside air introduced from the outside air inlet flows through the upper layer air passage and the lower layer air passage and is blown as air for air conditioning. Further, when the inside air / outside air inlet and the outside air inlet are opened by the operation of the inside / outside air switching damper, the inside / outside air two-layer flow mode is set, and the upper layer blowing fan and the lower layer blowing fan rotate to be introduced from the outside air introduction port. The outside air flows through one of the upper air passage and the lower air passage, and the inside air introduced from the inside air inlet flows through the other and is blown as air for air conditioning.
　ここで、外気導入口が開かれたモードの場合、雨水や洗車時の水が外気導入口からケーシングの内部に浸入し、この水が重力によって下層空気通路に流入してしまい、ケーシングの底壁部に溜まることになる。ケーシングの底壁部に溜まった水は下層送風用ファンが回転しても全てを吸い出すことはできず、水が下層空気通路に溜まったままとなりやすい。 Here, in the mode in which the outside air introduction port is opened, rain water or water during car washing enters the inside of the casing from the outside air introduction port, and this water flows into the lower air passage by gravity, and the bottom wall of the casing Will accumulate in the department. All of the water accumulated in the bottom wall of the casing cannot be sucked out even when the lower fan is rotated, and the water tends to remain in the lower air passage.
　このことに対して、本発明では、下層スクロール部の内部に連通する下層ベルマウス口を形成する下層ベルマウス形成部材にモーター覆い部を設けて、モーター覆い部とケーシングの底壁部との間にシール材を設けたので、下層空気通路に溜まった水が外部に漏れないようすることができる。 On the other hand, in the present invention, a motor cover is provided on the lower bell mouth forming member that forms the lower bell mouth opening communicating with the inside of the lower scroll part, and the motor cover is provided between the motor cover and the bottom wall of the casing. Since the sealing material is provided in the water, the water accumulated in the lower air passage can be prevented from leaking to the outside.
　第２の発明は、第１の発明において、上記下層ベルマウス形成部材における上記下層ベルマウス口よりも下方に上記モーター覆い部が上記下層ベルマウス口の径方向に延びるように設けられ、上記ケーシングの上記底壁部には、上記モーター覆い部の下部が嵌合する嵌合孔が形成されていることを特徴とする。 According to a second invention, in the first invention, the motor cover portion is provided below the lower bellmouth mouth in the lower bellmouth forming member so as to extend in a radial direction of the lower bellmouth mouth, and the casing The bottom wall portion is formed with a fitting hole into which the lower portion of the motor cover portion is fitted.
　この構成によれば、下層ベルマウス形成部材をケーシングに取り付けると、下層ベルマウス形成部材のモーター覆い部の下部がケーシングの底壁部の嵌合孔に嵌合するので、下層ベルマウス形成部材がケーシングにしっかりと固定される。 According to this configuration, when the lower bellmouth forming member is attached to the casing, the lower portion of the motor covering portion of the lower bellmouth forming member is fitted into the fitting hole in the bottom wall portion of the casing. It is firmly fixed to the casing.
　第３の発明は、第２の発明において、上記モーター覆い部の下部と上記嵌合孔との間には、上記シール材が設けられていることを特徴とする。 The third invention is characterized in that, in the second invention, the sealing material is provided between a lower portion of the motor cover and the fitting hole.
　この構成によれば、下層空気通路に溜まっている水がモーター覆い部の下部と嵌合孔との間から漏出し難くなる。 This configuration makes it difficult for water accumulated in the lower air passage to leak from between the lower portion of the motor cover and the fitting hole.
　第４の発明は、第２の発明において、上記モーター覆い部の下部は、上記モーターが有するフランジに嵌合するように形成されていることを特徴とする。 The fourth invention is characterized in that, in the second invention, the lower portion of the motor cover is formed so as to be fitted to a flange of the motor.
　この構成によれば、モーター覆い部の下部がモーターのフランジに嵌合することで、モーター自体に止水構造を設けずに済む。 According to this configuration, the lower part of the motor cover is fitted to the flange of the motor, so that it is not necessary to provide a water stop structure in the motor itself.
　第５の発明は、第４の発明において、上記モーター覆い部の下部及び上記モーターの上記フランジは共通の締結部材によって上記ケーシングに締結固定されていることを特徴とする。 The fifth invention is characterized in that, in the fourth invention, the lower part of the motor cover and the flange of the motor are fastened and fixed to the casing by a common fastening member.
　この構成によれば、モーター覆い部及びモーターをケーシングに組み付ける際の組み付け工数が削減される。 This configuration reduces the man-hours for assembling the motor cover and the motor to the casing.
　第６の発明は、第１の発明において、上記下層ベルマウス形成部材の上部に上記下層ベルマウス口が形成され、上記下層ベルマウス形成部材における上記下層ベルマウス口の径方向外側部分は、上記ケーシングに嵌合していることを特徴とする。 According to a sixth invention, in the first invention, the lower bellmouth mouth is formed above the lower bellmouth forming member, and the radially outer portion of the lower bellmouth mouth in the lower bellmouth forming member is It is characterized by being fitted to the casing.
　この構成によれば、下層ベルマウス形成部材の上部がケーシングに嵌合することで、下層ベルマウス形成部材がケーシングの内部で安定する。 According to this configuration, the lower bellmouth forming member is stabilized in the casing by fitting the upper portion of the lower bellmouth forming member into the casing.
　第７の発明は、第１の発明において、上記モーター覆い部には、上記モーターの上記回転軸方向に沿って延びる縦板部が形成され、該縦板部は、上記回転軸を囲むように配置されていることを特徴とする。 In a seventh aspect based on the first aspect, the motor cover portion is formed with a vertical plate portion extending along the rotation axis direction of the motor, and the vertical plate portion surrounds the rotation shaft. It is arranged.
　この構成によれば、下層空気通路に溜まっている水がモーター側へ流れるのを縦板部によって抑制することが可能になる。 According to this configuration, the vertical plate portion can suppress the water accumulated in the lower air passage from flowing to the motor side.
　第８の発明は、第３の発明において、上記モーター覆い部の下部には、上記嵌合孔の内周面に対向するように配置される対向面が設けられ、上記シール材は、上記対向面と上記嵌合孔の内周面との間に配置され、上記対向面と上記嵌合孔の内周面とで圧縮されていることを特徴とする。 In an eighth aspect based on the third aspect, a lower surface of the motor cover is provided with a facing surface disposed so as to face the inner peripheral surface of the fitting hole. It arrange | positions between the surface and the inner peripheral surface of the said fitting hole, and is compressed by the said opposing surface and the inner peripheral surface of the said fitting hole, It is characterized by the above-mentioned.
　この構成によれば、シール材がモーター覆い部の対向面と嵌合孔の内周面とで圧縮されるので、シール性がより一層高まる。 According to this configuration, the sealing material is further compressed between the facing surface of the motor cover portion and the inner peripheral surface of the fitting hole, so that the sealing performance is further enhanced.
　第１の発明によれば、下層ベルマウス形成部材のモーター覆い部とケーシングの底壁部との間にシール材を設けたので、下層空気通路に溜まった水が外部に漏れないようすることができる。 According to the first invention, since the sealing material is provided between the motor cover portion of the lower bellmouth forming member and the bottom wall portion of the casing, it is possible to prevent water accumulated in the lower air passage from leaking to the outside. it can.
　第２の発明によれば、下層ベルマウス形成部材のモーター覆い部の下部がケーシングの底壁部の嵌合孔に嵌合するので、下層ベルマウス形成部材をケーシングにしっかりと固定することができる。 According to the second invention, since the lower part of the motor cover portion of the lower bellmouth forming member is fitted into the fitting hole in the bottom wall portion of the casing, the lower bellmouth forming member can be firmly fixed to the casing. .
　第３の発明によれば、モーター覆い部の下部と嵌合孔との間にシール材を設けたので、下層空気通路に溜まっている水や下層空気通路の空気が漏出し難くなる。 According to the third invention, since the sealing material is provided between the lower portion of the motor cover and the fitting hole, it is difficult for water accumulated in the lower air passage and air in the lower air passage to leak out.
　第４の発明によれば、モーター覆い部の下部がモーターのフランジに嵌合するようになっているので、モーター自体に止水構造を設けずに済み、モーターのコストを低減することができる。 According to the fourth invention, since the lower part of the motor cover is fitted to the flange of the motor, it is not necessary to provide a water stop structure in the motor itself, and the cost of the motor can be reduced.
　第５の発明によれば、モーター覆い部の下部及びモーターのフランジを共通の締結部材によってケーシングに締結固定できるので、組み付け工数を削減できる。 According to the fifth invention, the lower part of the motor cover and the flange of the motor can be fastened and fixed to the casing by the common fastening member, so that the number of assembling steps can be reduced.
　第６の発明によれば、下層ベルマウス形成部材の上部がケーシングに嵌合するので下層ベルマウス形成部材をケーシングの内部で安定させることができる。 According to the sixth invention, since the upper part of the lower bellmouth forming member is fitted into the casing, the lower bellmouth forming member can be stabilized inside the casing.
　第７の発明によれば、モーター覆い部に縦板部を形成したので、下層空気通路に溜まっている水がモーター側へ流れるのを抑制することができる。 According to the seventh invention, since the vertical plate portion is formed in the motor cover portion, it is possible to suppress the water accumulated in the lower air passage from flowing to the motor side.
　第８の発明によれば、モーター覆い部の下部を嵌合孔に嵌合させることによってシール材を確実に圧縮させて高いシール性を得ることができる。 According to the eighth aspect of the invention, it is possible to reliably compress the sealing material by fitting the lower portion of the motor cover portion into the fitting hole, thereby obtaining high sealing performance.
本発明の実施形態に係る車両空調用送風装置を後側から見た斜視図である。It is the perspective view which looked at the air blower for vehicle air conditioning which concerns on embodiment of this invention from the rear side. 車両空調用送風装置の分解斜視図である。It is a disassembled perspective view of the ventilation apparatus for vehicle air conditioning. 車両空調用送風装置の正面図である。It is a front view of the air blower for vehicle air conditioning. 車両空調用送風装置の左側面図である。It is a left view of the ventilation apparatus for vehicle air conditioning. 車両空調用送風装置の右側面図である。It is a right view of the ventilation apparatus for vehicle air conditioning. 車両空調用送風装置の底面図である。It is a bottom view of the air blower for vehicle air conditioning. 図４におけるVII－VII線断面の概略図である。It is the schematic of the VII-VII line cross section in FIG. 図３におけるVIII－VIII線断面の概略図である。FIG. 4 is a schematic view of a cross section taken along line VIII-VIII in FIG. 3. 図８におけるＡ部拡大図である。It is the A section enlarged view in FIG.
　以下、本発明の実施形態を図面に基づいて詳細に説明する。尚、以下の好ましい実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物或いはその用途を制限することを意図するものではない。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.
　図１は、本発明の実施形態に係る車両空調用送風装置１の斜視図であり、図２は、本発明の実施形態に係る車両空調用送風装置１の分解斜視図である。この車両空調用送風装置１は、例えば自動車の車室内に配設されて空調用空気を送風するためのものであり、図示しない空調ユニットと共に車両用空調装置を構成している。空調ユニットは、冷却用熱交換器と、加熱用熱交換器と、エアミックスダンパと、複数の吹出方向切替ダンパと、これらを収容する空調ケーシングとを備えている。車両空調用送風装置１から送風された空調用空気は、空調ケーシングの内部に導入されて冷却用熱交換器及び加熱用熱交換器を通過して所望温度の空調風とされた後、吹出方向切替ダンパによって設定された吹出モードに応じて車室の各部に供給される。空調ケーシングには、デフロスタ吹出口、ベント吹出口、ヒート吹出口等が形成されている。空調風の温度は、エアミックスダンパによって設定される加熱用熱交換器の空気通過量よって変更することができる。 FIG. 1 is a perspective view of a vehicle air-conditioning blower 1 according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the vehicle air-conditioning blower 1 according to an embodiment of the present invention. The vehicle air-conditioning blower 1 is disposed, for example, in a passenger compartment of an automobile to blow air-conditioning air, and constitutes a vehicle air-conditioning device together with an air-conditioning unit (not shown). The air conditioning unit includes a cooling heat exchanger, a heating heat exchanger, an air mix damper, a plurality of blowing direction switching dampers, and an air conditioning casing that houses these. The air-conditioning air blown from the vehicle air-conditioning blower 1 is introduced into the inside of the air-conditioning casing and passes through the cooling heat exchanger and the heating heat exchanger to be conditioned air at a desired temperature. It is supplied to each part of the passenger compartment according to the blowing mode set by the switching damper. In the air conditioning casing, a defroster outlet, a vent outlet, a heat outlet, and the like are formed. The temperature of the conditioned air can be changed by the amount of air passing through the heating heat exchanger set by the air mix damper.
　尚、この実施形態では、各図に示すように、車両前側を単に「前」といい、車両後側を単に「後」といい、車両左側を単に「左」といい、車両右側を単に「右」というものとするが、これは説明の便宜を図るために定義するだけであり、本発明を限定するものではない。 In this embodiment, as shown in each drawing, the front side of the vehicle is simply referred to as “front”, the rear side of the vehicle is simply referred to as “rear”, the left side of the vehicle is simply referred to as “left”, and the right side of the vehicle is simply referred to as “ "Right", but this is only defined for convenience of explanation and does not limit the present invention.
　車両空調用送風装置１は、図示しないが車室内の前端部に設けられているインストルメントパネルの内部に空調ユニットと共に収容されている。空調ユニットは、インストルメントパネルの内部において左右方向の略中央部に配置される一方、車両空調用送風装置１は、インストルメントパネルの内部において空調ユニットの助手席側（右ハンドル車の場合は左側、左ハンドル車の場合は右側）に配置される。この実施形態では、右側に配置されている。 The vehicle air-conditioning blower 1 is housed together with an air-conditioning unit inside an instrument panel provided at a front end portion of a vehicle interior (not shown). The air-conditioning unit is disposed at a substantially central portion in the left-right direction inside the instrument panel, while the vehicle air-conditioning blower 1 is located on the passenger seat side of the air-conditioning unit inside the instrument panel (left side in the case of a right-hand drive vehicle). In the case of a left-hand drive vehicle, it is arranged on the right side). In this embodiment, it is arranged on the right side.
　（車両の構成）
　図示しないが、この車両空調用送風装置１が配設される車両は、エンジンルームと、車室とを区画するためのダッシュパネル（区画部材）を備えている。エンジンルームは車両の前部に設けられていて、エンジンや変速機等が配設されるようになっている。ダッシュパネルは略上下方向に延びている。ダッシュパネルの上部には、左右方向に延びるカウルが配設されている。カウルには、車室外に連通する連通口が形成されている。カウルは車室外に配設されているものなので、カウルには、雨水や洗車時の水、雪等が入ることがある。 (Vehicle configuration)
Although not shown, the vehicle in which the vehicle air-conditioning blower 1 is provided includes a dash panel (partition member) for partitioning the engine room and the vehicle compartment. The engine room is provided in the front part of the vehicle, and an engine, a transmission, and the like are arranged therein. The dash panel extends substantially in the vertical direction. A cowl extending in the left-right direction is disposed on the upper portion of the dash panel. The cowl is formed with a communication port communicating with the outside of the passenger compartment. Since the cowl is disposed outside the passenger compartment, rainwater, water during car washing, snow, etc. may enter the cowl.
　（車両空調用送風装置１の構成）
　図２、図７や図８にも示すように、車両空調用送風装置１は、上層送風用ファン４０と、下層送風用ファン５０と、上層送風用ファン４０及び下層送風用ファン５０を回転駆動するためのモーター６５と、第１内外気切替ダンパ４と、第２内外気切替ダンパ５と、エアフィルタ６と、内外気切替用アクチュエータ７と、送風ケーシング８とを少なくとも備えている。 (Configuration of the vehicle air-conditioning blower 1)
As shown in FIGS. 2, 7, and 8, the vehicle air conditioning blower 1 rotationally drives the upper layer blower fan 40, the lower layer blower fan 50, the upper layer blower fan 40, and the lower layer blower fan 50. A motor 65, a first inside / outside air switching damper 4, a second inside / outside air switching damper 5, an air filter 6, an inside / outside air switching actuator 7, and a blower casing 8 are provided.
　送風ケーシング８は、例えば複数の樹脂製部材が組み合わされて構成されており、その内部には、上層送風用ファン４０、下層送風用ファン５０、第１内外気切替ダンパ４、第２内外気切替ダンパ５及びエアフィルタ６が収容されている。上層送風用ファン４０と下層送風用ファン５０とは上下に並ぶように配設される。 The blower casing 8 is configured by combining a plurality of resin members, for example, and includes an upper layer blower fan 40, a lower layer blower fan 50, a first inside / outside air switching damper 4, and a second inside / outside air switching. A damper 5 and an air filter 6 are accommodated. The upper layer blowing fan 40 and the lower layer blowing fan 50 are arranged so as to be lined up and down.
　送風ケーシング８の上壁部には、車室外の空気（外気）を送風ケーシング８に導入するための外気導入口９が形成されている。送風ケーシング８における外気導入口９の周縁部には、上方かつ前側へ延びる外気導入ダクト１０が設けられており、この外気導入ダクト１０の上流端がカウルの連通口に接続されている。つまり、外気導入口９は、外気導入ダクト１０及び連通口を介して車室外と連通している。外気導入口９は、左右方向に長い形状とすることができる。 The outside wall inlet 9 for introducing the air outside the vehicle compartment (outside air) into the blowing casing 8 is formed in the upper wall portion of the blowing casing 8. An outside air introduction duct 10 extending upward and forward is provided at the peripheral edge of the outside air introduction port 9 in the blower casing 8, and an upstream end of the outside air introduction duct 10 is connected to a communication port of the cowl. That is, the outside air introduction port 9 communicates with the outside of the vehicle compartment via the outside air introduction duct 10 and the communication port. The outside air inlet 9 can have a shape that is long in the left-right direction.
　図３～図５に示すように、送風ケーシング８の上壁部の前側部分及び後側部分には、それぞれ、前側内気導入口１１Ａ及び後側内気導入口１１Ｂが形成されている。前側内気導入口１１Ａ及び後側内気導入口１１Ｂは車室内に開口しており、車室内の空気（内気）を送風ケーシング８に導入するためのものである。前側内気導入口１１Ａ及び後側内気導入口１１Ｂも、左右方向に長い形状とすることができる。図４及び図５に示すように、前側内気導入口１１Ａ及び後側内気導入口１１Ｂは送風ケーシング８の左右両側壁部の上部にも形成することができる。 As shown in FIGS. 3 to 5, a front side air inlet 11A and a rear side air inlet 11B are formed in the front and rear portions of the upper wall portion of the blower casing 8, respectively. The front side air introduction port 11 </ b> A and the rear side air introduction port 11 </ b> B are opened in the vehicle interior, and are for introducing air (inside air) in the vehicle interior into the blower casing 8. The front side air introduction port 11A and the rear side air introduction port 11B can also have a shape that is long in the left-right direction. As shown in FIGS. 4 and 5, the front side air introduction port 11 </ b> A and the rear side air introduction port 11 </ b> B can also be formed at the upper part of the left and right side walls of the blower casing 8.
　図７及び図８に示すように、送風ケーシング８の周壁部８ｂの内方における上側には、外気導入口９と、前側内気導入口１１Ａ及び後側内気導入口１１Ｂとが連通するフィルタ収容空間Ｆが設けられている。フィルタ収容空間Ｆには、上記フィルタ６が配設されている。フィルタ６は、プリーツ成形された空気濾過用の濾材６ａと、濾材６ａを囲むように設けられて該濾材６ａと一体化されている枠材６ｂと、送風ケーシング８のフィルタ挿入部を閉塞するための蓋６ｃとを備えている。フィルタ６は、フィルタ収容空間Ｆにおいて略水平方向に延びるように配置され、送風ケーシング８の内面に支持されている。 As shown in FIGS. 7 and 8, the filter housing space in which the outside air introduction port 9 communicates with the front side inside air introduction port 11 </ b> A and the rear side inside air introduction port 11 </ b> B on the inner side of the peripheral wall portion 8 b of the blower casing 8. F is provided. The filter 6 is disposed in the filter housing space F. The filter 6 closes the filter insertion portion of the blast casing 8 and the filter medium 6a for air filtration formed in pleats, the frame 6b provided so as to surround the filter medium 6a and integrated with the filter medium 6a. And a lid 6c. The filter 6 is disposed so as to extend in a substantially horizontal direction in the filter housing space F, and is supported on the inner surface of the blower casing 8.
　送風ケーシング８の周壁部８ｂの内方におけるフィルタ収容空間Ｆよりも下側（空気流れ方向下流側）には、上層空気通路１７と、下層空気通路１８とが形成されている。上層空気通路１７の上流端は、フィルタ収容空間Ｆを介して外気導入口９と前側内気導入口１１Ａとの両方に連通している。下層空気通路１８の上流端は、フィルタ収容空間Ｆを介して外気導入口９と後側内気導入口１１Ｂとの両方に連通している。 An upper air passage 17 and a lower air passage 18 are formed below the filter housing space F inside the peripheral wall portion 8b of the blower casing 8 (downstream in the air flow direction). The upstream end of the upper air passage 17 communicates with both the outside air introduction port 9 and the front side inside air introduction port 11A through the filter housing space F. The upstream end of the lower air passage 18 communicates with both the outside air introduction port 9 and the rear side inside air introduction port 11B through the filter housing space F.
　送風ケーシング８の周壁部８ｂの内方には、フィルタ収容空間Ｆから下方に離れた部分に、上層スクロール部１３が形成され、この上層スクロール部１３の下側に隣接して下層スクロール部１４が形成されている。上層スクロール部１３と下層スクロール部１４とは略同心上に位置している。また、上層スクロール部１３の下壁部と下層スクロール部１４の上壁部とは共通化されている。 On the inner side of the peripheral wall portion 8b of the blower casing 8, an upper layer scroll portion 13 is formed at a portion away from the filter housing space F, and the lower layer scroll portion 14 is adjacent to the lower side of the upper layer scroll portion 13 and is located below. Is formed. The upper scroll part 13 and the lower scroll part 14 are located substantially concentrically. Moreover, the lower wall part of the upper scroll part 13 and the upper wall part of the lower scroll part 14 are made common.
　上層スクロール部１３の上壁部には上層ベルマウス口１３ａが上方に向けて開口している。上層ベルマウス口１３ａと、フィルタ６の下面とは所定の間隔をあけた状態で対向している。図８に示すように、上層ベルマウス口１３ａの後縁部には、上方へ突出する下側仕切板１５が設けられている。下側仕切板１５はフィルタ収容空間Ｆ内まで延びており、これにより、フィルタ収容空間Ｆ及びフィルタ収容空間Ｆよりも下流側の空間が左右に２つに区画される。 An upper bell mouth port 13a is opened upward on the upper wall portion of the upper scroll portion 13. The upper bell mouth port 13a and the lower surface of the filter 6 face each other with a predetermined gap. As shown in FIG. 8, a lower partition plate 15 projecting upward is provided at the rear edge of the upper bellmouth mouth 13a. The lower partition plate 15 extends into the filter housing space F, whereby the filter housing space F and the space downstream of the filter housing space F are divided into two on the left and right.
　下層スクロール部１４は送風ケーシング８の底壁部８ａから上方に離れて設けられている。下層スクロール部１４の下壁部１４ａと、送風ケーシング８の底壁部８ａとの間に下層空気通路１８が形成されることになる。 The lower scroll portion 14 is provided away from the bottom wall portion 8a of the blower casing 8 upward. A lower air passage 18 is formed between the lower wall portion 14 a of the lower scroll portion 14 and the bottom wall portion 8 a of the blower casing 8.
　下層スクロール部１４の下壁部１４ａには略円形の開口部１４ｂが形成されている。開口部１４ｂの径は、上層ベルマウス口１３ａの径よりも大きく設定されている。下壁部１４ａにおける開口部１４ｂの周縁部には、下方に開放して周方向に連続して環状に延びる嵌合溝１４ｃが形成されている。この嵌合溝１４ｃには、後述する下層ベルマウス形成部材６０の上部における下層ベルマウス口６１ａの径方向外側部分が嵌合するようになっている。 A substantially circular opening 14 b is formed in the lower wall portion 14 a of the lower layer scroll portion 14. The diameter of the opening 14b is set to be larger than the diameter of the upper bell mouth port 13a. A fitting groove 14c is formed at the peripheral edge of the opening 14b in the lower wall portion 14a. In this fitting groove 14c, a radially outer portion of the lower bellmouth mouth 61a at the upper portion of the lower bellmouth forming member 60 described later is fitted.
　送風ケーシング８の内方には、下側仕切板１５の上方への延長線近傍に位置するように上側仕切板１６が配設されている。上側仕切板１６は上方へ延びており、この上側仕切板１６により、フィルタ収容空間Ｆよりも空気流れ方向上流側の空間が前後方向に２つに区画される。上側仕切板１６は、送風ケーシング８の前後方向中央部よりも後側寄りに位置している。 The upper partition plate 16 is disposed inside the blower casing 8 so as to be positioned in the vicinity of the upward extension line of the lower partition plate 15. The upper partition plate 16 extends upward, and the upper partition plate 16 divides the space upstream of the filter housing space F in the air flow direction into two in the front-rear direction. The upper partition plate 16 is located closer to the rear side than the central portion in the front-rear direction of the blower casing 8.
　送風ケーシング８の内部において下側仕切板１５及び上側仕切板１６よりも前側の空間は、下側仕切板１５及び上側仕切板１６よりも後側の空間よりも広くなっている。送風ケーシング８の内部において下側仕切板１５及び上側仕切板１６よりも前側の空間は、上層空気通路１７の上流側とされており、この上層空気通路１７の上流側は上層ベルマウス口１３ａまで延びている。そして、上層空気通路１７の下流側は、上層ベルマウス口１３ａから上層スクロール部１３の内部まで延び、上層スクロール部１３の内部において周方向に延びた後、左側へ延びている。 The space in front of the lower partition plate 15 and the upper partition plate 16 in the blower casing 8 is wider than the space behind the lower partition plate 15 and the upper partition plate 16. The space in front of the lower partition plate 15 and the upper partition plate 16 in the blower casing 8 is the upstream side of the upper air passage 17, and the upstream side of the upper air passage 17 extends to the upper bell mouth port 13a. It extends. The downstream side of the upper layer air passage 17 extends from the upper layer bell mouth port 13 a to the inside of the upper layer scroll part 13, extends in the circumferential direction inside the upper layer scroll part 13, and then extends to the left side.
　また、下側仕切板１５及び上側仕切板１６よりも後側の空間が下層空気通路１８とされている。下層空気通路１８の上流側は、上層スクロール部１３及び下層スクロール部１４の外面と、送風ケーシング８の周壁部８ｂの内面との間を下方へ延びて送風ケーシング８の底壁部８ａに達している。つまり、下層空気通路１８は、上層空気通路１７よりも下方まで延びている。下層空気通路１８の下流側は下層スクロール部１４の内部まで延びている。 In addition, the space behind the lower partition plate 15 and the upper partition plate 16 is a lower air passage 18. The upstream side of the lower layer air passage 18 extends downward between the outer surfaces of the upper layer scroll portion 13 and the lower layer scroll portion 14 and the inner surface of the peripheral wall portion 8b of the blower casing 8, and reaches the bottom wall portion 8a of the blower casing 8. Yes. That is, the lower layer air passage 18 extends below the upper layer air passage 17. The downstream side of the lower layer air passage 18 extends to the inside of the lower layer scroll portion 14.
　送風ケーシング８の底壁部８ａには、後述する下層ベルマウス形成部材６０のモーター覆い部６２の下部が嵌合する嵌合孔８ｃ（図９に示す）が形成されている。嵌合孔８ｃは、上層ベルマウス口１３ａよりも大きく設定されている。 The bottom wall 8a of the blower casing 8 is formed with a fitting hole 8c (shown in FIG. 9) into which a lower portion of a motor cover 62 of a lower bellmouth forming member 60 described later is fitted. The fitting hole 8c is set to be larger than the upper bell mouth port 13a.
　下層空気通路１８の下流側は、下層スクロール部１４の内部まで延びた後、下層スクロール部１４の内部において周方向に延びてから左側へ延びている。下層空気通路１８の下流側は、上層空気通路１７の下流側の下側に位置している。下層空気通路１８の下流側及び上層空気通路１７の下流側には、空調ケーシングのダクト部（図示せず）が接続されている。 The downstream side of the lower layer air passage 18 extends to the inside of the lower layer scroll part 14 and then extends in the circumferential direction inside the lower layer scroll part 14 and then to the left side. The downstream side of the lower air passage 18 is located below the downstream side of the upper air passage 17. A duct portion (not shown) of the air conditioning casing is connected to the downstream side of the lower air passage 18 and the downstream side of the upper air passage 17.
　上記モーター６５は、ケーシング８の下部に取り付けられるようになっている。このモーター６５は、出力軸（回転軸）６５ａと、送風ケーシング８の底壁部８ａに締結固定されるモーターフランジ６５ｂと、ローターやステータ等からなるモーター本体６５ｃとを有している。モーター６５の出力軸６５ａは、モーターフランジ６５ｂが送風ケーシング８の底壁部８ａに締結固定された状態で、出力軸６５ａが上方へ突出して送風ケーシング８の内部に位置するように配置される。出力軸６５ａは、送風ケーシング８の下層スクロール部１４から上層スクロール部１３の内部に達するまで延びている。出力軸６５ａには、上層送風用ファン４０及び下層送風用ファン５０が相対的に回動不能に連結されている。 The motor 65 is attached to the lower part of the casing 8. The motor 65 has an output shaft (rotating shaft) 65a, a motor flange 65b fastened and fixed to the bottom wall portion 8a of the blower casing 8, and a motor main body 65c made of a rotor, a stator or the like. The output shaft 65a of the motor 65 is disposed so that the output shaft 65a protrudes upward and is positioned inside the blower casing 8 with the motor flange 65b fastened and fixed to the bottom wall portion 8a of the blower casing 8. The output shaft 65 a extends from the lower scroll part 14 of the blower casing 8 until it reaches the inside of the upper scroll part 13. An upper layer blowing fan 40 and a lower layer blowing fan 50 are connected to the output shaft 65a so as not to be relatively rotatable.
　上層送風用ファン４０及び下層送風用ファン５０は、それぞれ樹脂材により成形されて別体とされている。つまり、上層送風用ファン４０は専用の金型を使用して全体が射出成形法により一体成形されてなるものであり、また、下層送風用ファン５０も専用の金型を使用して全体が射出成形法により一体成形されてなるものである。上層送風用ファン４０及び下層送風用ファン５０を一体成形することもできる。 The upper layer blowing fan 40 and the lower layer blowing fan 50 are each formed by a resin material and are separated. That is, the upper layer blower fan 40 is integrally molded by an injection molding method using a dedicated mold, and the lower layer blower fan 50 is also injected entirely using a dedicated mold. It is integrally formed by a molding method. The upper layer blowing fan 40 and the lower layer blowing fan 50 may be integrally formed.
　上記上層送風用ファン４０は、遠心式ファンであり、上層スクロール部１３の内部、即ち上層空気通路１７の内部において回転中心線が上下方向に延びる姿勢となるように配設されている。上層送風用ファン４０が回転することでその上方から吸い込んだ空気を径方向に吹き出すように構成されている。 The upper air blowing fan 40 is a centrifugal fan, and is disposed in the upper scroll portion 13, that is, in the upper air passage 17 so that the rotation center line extends in the vertical direction. The upper air blowing fan 40 rotates to blow out the air sucked from above in the radial direction.
　図７及び図８等に示すように、上記下層送風用ファン５０は、遠心式ファンであり、下層スクロール部１４の内部、即ち下層空気通路１８の内部において回転中心線が上下方向に延びる姿勢となるように配設されている。下層送風用ファン５０が回転することでその下方から吸い込んだ空気を径方向に吹き出すように構成されている。 As shown in FIG. 7 and FIG. 8 and the like, the lower layer blowing fan 50 is a centrifugal fan, and has a posture in which the rotation center line extends vertically in the lower layer scroll portion 14, that is, in the lower layer air passage 18. It is arranged to become. The lower-layer blower fan 50 is rotated so that the air sucked from below is blown out in the radial direction.
　この実施形態では、上層送風用ファン４０のファン径が下層送風用ファン５０のファン径よりも小さく設定されているが、これに限られるものではなく、各種設計要件に対応するように任意に設定することができ、上層送風用ファン４０のファン径と下層送風用ファン５０のファン径とを同じにすることもできる。ファン高さについても同様である。また、上層送風用ファン４０と下層送風用ファン５０の材料を同じにすることもできるし、異なるものにすることもできる。 In this embodiment, the fan diameter of the upper layer blower fan 40 is set smaller than the fan diameter of the lower layer blower fan 50, but is not limited to this, and is arbitrarily set to correspond to various design requirements. The fan diameter of the upper layer blowing fan 40 and the fan diameter of the lower layer blowing fan 50 can be made the same. The same applies to the fan height. Further, the material of the upper layer blowing fan 40 and the lower layer blowing fan 50 can be the same or different.
　図２、図７及び図８に示す第１内外気切替ダンパ４及び第２内外気切替ダンパ５は独立して動作する。第１内外気切替ダンパ４は、外気導入口９と、前側内気導入口１１Ａを開閉するロータリーダンパである。第２内外気切替ダンパ５は、外気導入口９と、後側内気導入口１１Ｂを開閉するロータリーダンパである。 The first inside / outside air switching damper 4 and the second inside / outside air switching damper 5 shown in FIGS. 2, 7 and 8 operate independently. The first inside / outside air switching damper 4 is a rotary damper that opens and closes the outside air introduction port 9 and the front side inside air introduction port 11A. The second inside / outside air switching damper 5 is a rotary damper that opens and closes the outside air introduction port 9 and the rear side inside air introduction port 11B.
　第１内外気切替ダンパ４は、送風ケーシング８の内部において前側、かつ、上層空気通路１７の上流側に配置されており、外気導入口９と前側内気導入口１１Ａを開閉することによって外気だけ、内気だけ及び両方のうち、任意の１つを選択して上層空気通路１７に流入させる。また、第２内外気切替ダンパ５は、送風ケーシング８の内部において後側、かつ、下層空気通路１８の上流側に配置されており、外気導入口９と後側内気導入口１１Ｂを開閉することによって外気だけ、内気だけ及び両方のうち、任意の１つを選択して下層空気通路１８に流入させる。 The first inside / outside air switching damper 4 is disposed on the front side in the blower casing 8 and on the upstream side of the upper air passage 17, and only the outside air is opened and closed by opening and closing the outside air introduction port 9 and the front side inside air introduction port 11A. Any one of the inside air and both is selected and allowed to flow into the upper air passage 17. Further, the second inside / outside air switching damper 5 is disposed in the rear side of the blower casing 8 and on the upstream side of the lower air passage 18 to open and close the outside air introduction port 9 and the rear side inside air introduction port 11B. By selecting any one of the outside air alone, the inside air alone, and both, the air flows into the lower air passage 18.
　具体的には、第１内外気切替ダンパ４は、左右方向に延びる閉塞板部４ａと、閉塞板部４ａの左右方向の両端部から径方向に延びる端板部４ｂと、各端板部４ｂから左右方向に突出する回動軸部４ｃとを備えている。回動軸部４ｃは、送風ケーシング８の左右両側壁部に回動可能に支持されている。図８に示すように、第１内外気切替ダンパ４が回動軸部４ｃ周りに前側へ向けて回動すると、外気導入口９が閉塞板部４ａによって開かれ、かつ、前側内気導入口１１Ａが閉塞板部４ａによって閉じられて外気のみが導入可能になる。一方、図示しないが、第１内外気切替ダンパ４が回動軸部４ｃ周りに上側へ向けて回動すると、外気導入口９が閉塞板部４ａによって閉じられ、かつ、前側内気導入口１１Ａが閉塞板部４ａによって開かれて内気のみが導入可能になる。 Specifically, the first inside / outside air switching damper 4 includes a closing plate portion 4a extending in the left-right direction, end plate portions 4b extending in the radial direction from both left and right ends of the closing plate portion 4a, and each end plate portion 4b. And a rotating shaft portion 4c protruding in the left-right direction. The rotation shaft portion 4 c is rotatably supported on the left and right side walls of the blower casing 8. As shown in FIG. 8, when the first inside / outside air switching damper 4 rotates around the rotation shaft portion 4c toward the front side, the outside air introduction port 9 is opened by the closing plate portion 4a and the front side inside air introduction port 11A. Is closed by the blocking plate portion 4a, and only outside air can be introduced. On the other hand, although not shown, when the first inside / outside air switching damper 4 rotates upward around the rotation shaft portion 4c, the outside air introduction port 9 is closed by the blocking plate portion 4a, and the front side inside air introduction port 11A is Only the inside air can be introduced by being opened by the blocking plate portion 4a.
　また、第２内外気切替ダンパ５は、第１内外気切替ダンパ４と同様に、左右方向に延びる閉塞板部５ａと、閉塞板部５ａの左右方向の両端部から径方向に延びる端板部５ｂと、各端板部５ｂから左右方向に突出する回動軸部５ｃとを備えている。回動軸部５ｃは、送風ケーシング８の左右両側壁部において第１内外気切替ダンパ４よりも後側の部分に対して回動可能に支持されている。図８に示すように、第２内外気切替ダンパ５が回動軸部５ｃ周りに後側へ向けて回動すると、外気導入口９が閉塞板部５ａによって開かれ、かつ、後側内気導入口１１Ｂが閉塞板部５ａによって閉じられて外気のみが導入可能になる。一方、図示しないが、第２内外気切替ダンパ５が回動軸部５ｃ周りに上側へ向けて回動すると、外気導入口９が閉塞板部５ａによって閉じられ、かつ、後側内気導入口１１Ｂが閉塞板部５ａによって開かれて内気のみが導入可能になる。 Similarly to the first inside / outside air switching damper 4, the second inside / outside air switching damper 5 includes a closing plate portion 5a extending in the left-right direction and an end plate portion extending in the radial direction from both ends in the left-right direction of the closing plate portion 5a. 5b and a rotating shaft portion 5c protruding in the left-right direction from each end plate portion 5b. The rotation shaft portion 5 c is supported so as to be rotatable with respect to a portion on the rear side of the first inside / outside air switching damper 4 on the left and right side walls of the blower casing 8. As shown in FIG. 8, when the second inside / outside air switching damper 5 is rotated around the rotation shaft portion 5c toward the rear side, the outside air introduction port 9 is opened by the closing plate portion 5a and the rear side inside air is introduced. The mouth 11B is closed by the closing plate portion 5a, so that only outside air can be introduced. On the other hand, although not shown, when the second inside / outside air switching damper 5 rotates upward around the rotation shaft portion 5c, the outside air introduction port 9 is closed by the closing plate portion 5a and the rear side inside air introduction port 11B. Is opened by the blocking plate portion 5a, and only the inside air can be introduced.
　第１内外気切替ダンパ４と第２内外気切替ダンパ５とは、電動アクチュエータ１００及びリンク部材１０１～１０３によって駆動される。第１内外気切替ダンパ４の回動軸部４ｃには径方向に延びるリンク部材１０２が固定され、第２内外気切替ダンパ５の回動軸部５ｃには径方向に延びるリンク部材１０３が固定されている。これらリンク部材１０２、１０３には、板状リンク部材１０１が係合するようになっている。板状リンク部材１０１には、電動アクチュエータ１００の駆動力が回動力として入力され、この板状リンク部材１０１の回動動作によってリンク部材１０２、１０３を個別に動作させて、第１内外気切替ダンパ４と第２内外気切替ダンパ５とを別々に開閉させることができる。このリンク部材１０１～１０３の構成は従来から周知のものであることから詳細な説明は省略する。 The first inside / outside air switching damper 4 and the second inside / outside air switching damper 5 are driven by the electric actuator 100 and the link members 101-103. A radially extending link member 102 is fixed to the rotating shaft portion 4 c of the first inside / outside air switching damper 4, and a radially extending link member 103 is fixed to the rotating shaft portion 5 c of the second inside / outside air switching damper 5. Has been. A plate-like link member 101 is engaged with these link members 102 and 103. A driving force of the electric actuator 100 is input to the plate-like link member 101 as a rotational force, and the link members 102 and 103 are individually operated by the turning operation of the plate-like link member 101, thereby the first inside / outside air switching damper. 4 and the second inside / outside air switching damper 5 can be opened and closed separately. Since the structures of the link members 101 to 103 are well known in the art, a detailed description thereof will be omitted.
　（下層ベルマウス形成部材の構成）
　この実施形態では、図７や図８等に示すように、送風ケーシング８の内部に、下層ベルマウス形成部材６０が設けられている。下層ベルマウス形成部材６０は、下層スクロール部１４の内部に連通する下層ベルマウス口６１ａを形成するための部材であり、下層ベルマウス口６１ａを有する上板部６１と、モーター６５を上方から覆うモーター覆い部６２と、上板部６１及びモーター覆い部６２連結するための連結部６３とを備えている。上板部６１、モーター覆い部６２及び連結部６３は、樹脂材によって一体成形されている。 (Configuration of lower bellmouth forming member)
In this embodiment, as shown in FIGS. 7 and 8, a lower bellmouth forming member 60 is provided inside the blower casing 8. The lower bellmouth forming member 60 is a member for forming the lower bellmouth mouth 61a communicating with the inside of the lower scroll portion 14, and covers the upper plate portion 61 having the lower bellmouth mouth 61a and the motor 65 from above. The motor cover part 62 and the connection part 63 for connecting the upper board part 61 and the motor cover part 62 are provided. The upper plate portion 61, the motor cover portion 62, and the connecting portion 63 are integrally formed of a resin material.
　上板部６１は略水平方向に延びる円盤状に形成されている。上板部６１の内側に上記下層ベルマウス口６１ａが形成されている。上板部６１の外周縁部（下層ベルマウス形成部材６０における下層ベルマウス口６１ａの径方向外側部分）には、上方へ突出して周方向に環状に延びる突条部６１ｂが形成されている。この突条部６１ｂは、下層スクロール部１４の下壁部１４ａに形成されている嵌合溝１４ｃに下方から挿入されて嵌合するようになっている。これにより、下層ベルマウス形成部材６０における上部が送風ケーシング８に固定される。また、突条部６１ｂが嵌合溝１４ｃに全周に亘って嵌合するので、突条部６１ｂと嵌合溝１４ｃとの間からの空気の漏れが抑制される。 The upper plate portion 61 is formed in a disk shape extending in a substantially horizontal direction. The lower bellmouth mouth 61 a is formed inside the upper plate portion 61. On the outer peripheral edge portion (the radially outer portion of the lower bellmouth mouth 61a of the lower bellmouth forming member 60) of the upper plate portion 61 is formed a ridge portion 61b that protrudes upward and extends annularly in the circumferential direction. The protruding portion 61b is inserted from below into a fitting groove 14c formed in the lower wall portion 14a of the lower layer scroll portion 14 so as to be fitted. Thereby, the upper part in the lower bellmouth formation member 60 is fixed to the ventilation casing 8. Moreover, since the protrusion 61b is fitted over the entire circumference of the fitting groove 14c, air leakage from between the protrusion 61b and the fitting groove 14c is suppressed.
　モーター覆い部６２は、下層ベルマウス形成部材６０における下層ベルマウス口６１ａよりも下方において下層ベルマウス口６１ａの径方向に延びるように設けられている。図９に示すように、モーター覆い部６２の下部には、モーター６５の出力軸６５ａ方向（上下方向）に沿って延びる環状板部６２ａが形成されている。環状板部６２ａは、送風ケーシング８の底壁部８ａの嵌合孔８ｃに沿って環状に延びている。 The motor cover portion 62 is provided so as to extend in the radial direction of the lower bellmouth mouth 61a below the lower bellmouth mouth 61a in the lower bellmouth forming member 60. As shown in FIG. 9, an annular plate portion 62 a extending along the output shaft 65 a direction (vertical direction) of the motor 65 is formed at the lower portion of the motor cover portion 62. The annular plate portion 62 a extends in an annular shape along the fitting hole 8 c in the bottom wall portion 8 a of the blower casing 8.
　環状板部６２ａの外周面は、送風ケーシング８の嵌合孔８ｃの内周面に対向するように配置される対向面６２ｂとされている。この対向面６２ｂと、嵌合孔８ｃの内周面との間には、シール材Ｓが配置されている。シール材Ｓは、対向面６２ｂと、嵌合孔８ｃの内周面とで圧縮されている。これにより、シール材Ｓが対向面６２ｂの全周及び嵌合孔８ｃの内周面の全周に密着して高いシール性が得られる。尚、シール材Ｓを構成する材料としては、たとえば発泡ウレタンやゴム等の弾性材を挙げることができる。 The outer peripheral surface of the annular plate portion 62a is an opposing surface 62b that is disposed so as to oppose the inner peripheral surface of the fitting hole 8c of the blower casing 8. A sealing material S is disposed between the facing surface 62b and the inner peripheral surface of the fitting hole 8c. The sealing material S is compressed by the facing surface 62b and the inner peripheral surface of the fitting hole 8c. Thereby, the sealing material S adheres to the entire periphery of the opposing surface 62b and the entire periphery of the inner peripheral surface of the fitting hole 8c, and high sealing performance is obtained. In addition, as a material which comprises the sealing material S, elastic materials, such as foaming urethane and rubber | gum, can be mentioned, for example.
　環状板部６２ａの下部は、モーター６５が有するモーターフランジ６５ｂに嵌合するように形成されている。具体的には、モーターフランジ６５ｂの上面における外周側には、環状溝６５ｄが形成されている。この環状溝６５ｄの内方に、環状板部６２ａの下部が差し込まれた状態で嵌合する。環状溝６５ｄと環状板部６２ａの下部との間には、シール材等の止水構造が設けられていない。 The lower part of the annular plate part 62a is formed so as to be fitted to a motor flange 65b of the motor 65. Specifically, an annular groove 65d is formed on the outer peripheral side of the upper surface of the motor flange 65b. It fits in the state where the lower part of the cyclic | annular board part 62a was inserted in the inside of this cyclic | annular groove | channel 65d. A water stop structure such as a sealing material is not provided between the annular groove 65d and the lower portion of the annular plate portion 62a.
　図７及び図８に示すように、モーター覆い部６２には、モーター６５の出力軸６５ａ方向に沿って延びる第１縦板部６２ｃ、第２縦板部６２ｄ及び第３縦板部６２ｅが形成されている。第１縦板部６２ｃ、第２縦板部６２ｄ及び第３縦板部６２ｅは、モーター覆い部６２の上面から上方へ突出しており、出力軸６５ａを囲むように配置されている。第１縦板部６２ｃは、第２縦板部６２ｄ及び第３縦板部６２ｅよりも下方に配置されるとともに、第２縦板部６２ｄ及び第３縦板部６２ｅよりも径方向外方に配置されている。第２縦板部６２ｄは、第１縦板部６２ｃと第３縦板部６２ｅとの間に配置されている。第３縦板部６２ｅは径方向について最も内方に配置されており、出力軸６５ａに接近している。第２縦板部６２ｄ及び第３縦板部６２ｅの上端部は同じ高さとされている。 As shown in FIGS. 7 and 8, the motor cover portion 62 is formed with a first vertical plate portion 62c, a second vertical plate portion 62d, and a third vertical plate portion 62e extending along the direction of the output shaft 65a of the motor 65. Has been. The first vertical plate portion 62c, the second vertical plate portion 62d, and the third vertical plate portion 62e protrude upward from the upper surface of the motor cover portion 62, and are arranged so as to surround the output shaft 65a. The first vertical plate portion 62c is disposed below the second vertical plate portion 62d and the third vertical plate portion 62e and is radially outward from the second vertical plate portion 62d and the third vertical plate portion 62e. Has been placed. The second vertical plate portion 62d is disposed between the first vertical plate portion 62c and the third vertical plate portion 62e. The third vertical plate portion 62e is disposed inward in the radial direction and is close to the output shaft 65a. The upper ends of the second vertical plate portion 62d and the third vertical plate portion 62e have the same height.
　図３に示すように、連結部６３は、複数設けられており、上板部６１からモーター覆い部６２まで延びている。複数の連結部６３は周方向に互いに間隔をあけて配置されており、隣合う連結部６３の間を空気が通過するようになっている。 As shown in FIG. 3, a plurality of connecting portions 63 are provided and extend from the upper plate portion 61 to the motor cover portion 62. The plurality of connecting portions 63 are arranged at intervals in the circumferential direction, and air passes between the adjacent connecting portions 63.
　また、モーター覆い部６２の下部には、取付板部６２ｆが径方向外方へ延びるように形成されている。モーター覆い部６２の取付板部６２ｆ及びモーターフランジ６５ｂは、共通の締結部材６９（図３に示す）によって送風ケーシング８の底壁部８ａに締結固定されている。締結部材６９は、たとえばビス等である。締結部材６９は、モーターフランジ６５ｂ及び取付板部６２ｆを下方から貫通して送風ケーシング８の底壁部８ａに螺合させることができる。これにより、モーター覆い部６２及びモーター６５を送風ケーシング８に組み付ける際の組み付け工数を削減できる。 Further, a mounting plate portion 62f is formed at the lower portion of the motor cover portion 62 so as to extend outward in the radial direction. The mounting plate part 62f and the motor flange 65b of the motor cover part 62 are fastened and fixed to the bottom wall part 8a of the blower casing 8 by a common fastening member 69 (shown in FIG. 3). The fastening member 69 is, for example, a screw. The fastening member 69 can be screwed into the bottom wall portion 8a of the blower casing 8 through the motor flange 65b and the mounting plate portion 62f from below. Thereby, the assembly man-hour at the time of assembling the motor cover part 62 and the motor 65 to the ventilation casing 8 can be reduced.
　（実施形態の作用効果）
　車両への搭載状態では、第１内外気切替ダンパ４及び第２内外気切替ダンパ５を独立して作動させることで、上層空気通路１７及び下層空気通路１８に外気を導入する外気導入モードと、上層空気通路１７及び下層空気通路１８に内気を導入する内気循環モードと、上層空気通路１７に外気を導入し、下層空気通路１８に内気を導入する内外気２層流モードとの３つのモードのうち、任意の１つに切り替えられる。内気循環モード、外気導入モード及び内外気２層流モードの切替は、従来から周知のオートエアコン制御によって行われる。内外気２層流モードにすることで、冬季には比較的乾燥した外気をデフロスト吹出口に供給してフロントウインドガラスの曇りを良好に晴らしながら、比較的暖かい内気をヒート吹出口に供給して暖房効率を向上させることができる。 (Effect of embodiment)
In the vehicle mounted state, an outside air introduction mode for introducing outside air into the upper air passage 17 and the lower air passage 18 by independently operating the first inside / outside air switching damper 4 and the second inside / outside air switching damper 5; There are three modes: an inside air circulation mode in which inside air is introduced into the upper air passage 17 and the lower air passage 18, and an inside / outside air two-layer flow mode in which outside air is introduced into the upper air passage 17 and inside air is introduced into the lower air passage 18. Of these, any one can be switched. Switching between the inside air circulation mode, the outside air introduction mode, and the inside / outside air two-layer flow mode is performed by conventionally known automatic air conditioner control. By setting the inside / outside air two-layer flow mode, in winter, relatively dry outside air is supplied to the defrost outlet, and the windshield glass is well cleared, while relatively warm inside air is supplied to the heat outlet. Heating efficiency can be improved.
　また、例えば車両の開発過程において、車両空調用送風装置１が搭載される車種によって上層送風用ファン４０及び下層送風用ファン５０のうち、一方の送風用ファンのファン径やファン高さ等の各種寸法変更を行う場合がある。この実施形態では、上層送風用ファン４０と下層送風用ファン５０とが別体であるため、一方の送風用ファンの寸法変更を行ったとしても、他方の送風用ファンには影響を与えることはなく、他方の送風用ファンまで新設する必要はなく、安価に対応できる。また、上層送風用ファン４０と下層送風用ファン５０とが別体であるため、一体成形する場合のようなスライド型は不要になり、金型費用を削減できる。この効果は上層送風用ファン４０及び下層送風用ファン５０を別体成形した場合の効果であるが、上層送風用ファン４０及び下層送風用ファン５０を一体成形するようにした場合には、部品点数を削減できるという効果を奏することができる。 Further, for example, in the vehicle development process, depending on the type of vehicle on which the vehicle air-conditioning blower 1 is mounted, one of the upper layer blower fan 40 and the lower layer blower fan 50, such as the fan diameter and fan height of one blower fan Dimensional changes may be made. In this embodiment, since the upper layer blowing fan 40 and the lower layer blowing fan 50 are separate bodies, even if the size of one blowing fan is changed, the other blowing fan is not affected. In addition, it is not necessary to newly install the other blower fan, and it is possible to cope with it at low cost. Further, since the upper layer blowing fan 40 and the lower layer blowing fan 50 are separate bodies, a slide mold as in the case of integral molding becomes unnecessary, and the mold cost can be reduced. This effect is an effect when the upper layer blower fan 40 and the lower layer blower fan 50 are separately formed. However, when the upper layer blower fan 40 and the lower layer blower fan 50 are integrally formed, the number of parts is reduced. Can be achieved.
　また、外気導入口９が開かれたモードの場合、雨水や洗車時の水が外気導入口９から送風ケーシング８の内部に浸入し、この水が重力によって下層空気通路１８に流入してしまい、送風ケーシング８の底壁部８ａに溜まることがある。送風ケーシング８の底壁部８ａに溜まった水は下層送風用ファン５０が回転しても全てを吸い出すことはできず、水が下層空気通路１８に溜まったままとなりやすい。 Further, in the mode in which the outside air introduction port 9 is opened, rain water or water at the time of washing is infiltrated into the blower casing 8 from the outside air introduction port 9, and this water flows into the lower air passage 18 by gravity, Sometimes, it accumulates in the bottom wall portion 8 a of the blower casing 8. All of the water accumulated in the bottom wall portion 8a of the blower casing 8 cannot be sucked out even when the lower fan 50 is rotated, and the water tends to remain in the lower air passage 18.
　このことに対して、この実施形態では、下層スクロール部１４の内部に連通する下層ベルマウス口６１ａを形成する下層ベルマウス形成部材６０にモーター覆い部６２を設けてモーター６５を上方から覆っているので、下層空気通路１８に溜まっている水がモーター６５に浸入し難くなる。よって、モーター６５に不具合が発生しないようにすることができる。 In contrast, in this embodiment, the motor cover 62 is provided on the lower bellmouth forming member 60 that forms the lower bellmouth mouth 61a communicating with the inside of the lower scroll portion 14 to cover the motor 65 from above. Therefore, it is difficult for water accumulated in the lower air passage 18 to enter the motor 65. Therefore, it is possible to prevent the motor 65 from malfunctioning.
　また、下層ベルマウス形成部材６０を送風ケーシング８に取り付けた状態では、下層ベルマウス形成部材６０のモーター覆い部６２の下部が送風ケーシング８の底壁部８ａの嵌合孔８ｃに嵌合するので、下層ベルマウス形成部材６０を送風ケーシング８にしっかりと固定できる。 Further, in a state where the lower bellmouth forming member 60 is attached to the blower casing 8, the lower portion of the motor cover portion 62 of the lower bellmouth forming member 60 is fitted into the fitting hole 8 c of the bottom wall portion 8 a of the blower casing 8. The lower bellmouth forming member 60 can be firmly fixed to the blower casing 8.
　また、モーター覆い部６２の下部に設けた対向面６２ｂと、送風ケーシング８の嵌合孔８ｃの内周面との間にシール材Ｓを配置したので、下層空気通路１８に溜まっている水がモーター覆い部６２の下部と嵌合孔８ｃとの間から漏出し難くなるとともに、下層空気通路１８の空気もモーター覆い部６２の下部と嵌合孔８ｃとの間から漏出し難くなる。 Further, since the sealing material S is disposed between the facing surface 62b provided at the lower part of the motor cover 62 and the inner peripheral surface of the fitting hole 8c of the blower casing 8, the water accumulated in the lower air passage 18 is removed. It is difficult to leak from between the lower part of the motor cover 62 and the fitting hole 8c, and the air in the lower air passage 18 is also difficult to leak from between the lower part of the motor cover 62 and the fitting hole 8c.
　上述の実施形態はあらゆる点で単なる例示に過ぎず、限定的に解釈してはならない。さらに、特許請求の範囲の均等範囲に属する変形や変更は、全て本発明の範囲内のものである。 The above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.
　以上説明したように、本発明に係る車両空調用送風装置は、例えば、車両用空調装置の送風ユニットとして使用することができる。 As described above, the vehicle air-conditioning blower according to the present invention can be used, for example, as a blower unit of a vehicle air-conditioner.
１　　　　　　　　車両空調用送風装置
４　　　　　　　　第１内外気切替ダンパ
５　　　　　　　　第２内外気切替ダンパ
８　　　　　　　　送風ケーシング
８ａ　　　　　　　底壁部
８ｃ　　　　　　　嵌合孔
９　　　　　　　　外気導入口
１１　　　　　　　内気導入口
１７　　　　　　　上層空気通路
１８　　　　　　　下層空気通路
４０　　　　　　　上層送風用ファン
５０　　　　　　　下層送風用ファン
５３ｂ　　　　　　ファン側平坦面
６０　　　　　　　下層ベルマウス形成部材
６１ａ　　　　　　下層ベルマウス口
６２　　　　　　　モーター覆い部
６２ｂ　　　　　　対向面
６２ｃ　　　　　　縦板部
６５　　　　　　　モーター
６５ａ　　　　　　出力軸
６５ｂ　　　　　　モーターフランジ
６９　　　　　　　締結部材
Ｓ　　　　　　　　シール材 DESCRIPTION OF SYMBOLS 1 Vehicle air conditioner blower 4 1st inside / outside air switching damper 5 2nd inside / outside air switching damper 8 Blowing casing 8a Bottom wall part 8c Fitting hole 9 Outside air introduction port 11 Inside air introduction port 17 Upper air passage 18 Lower air passage 40 Upper air blowing Fan 50 Lower fan 53b Fan-side flat surface 60 Lower bell mouth forming member 61a Lower bell mouth port 62 Motor cover portion 62b Opposing surface 62c Vertical plate portion 65 Motor 65a Output shaft 65b Motor flange 69 Fastening member S Sealing material

Claims (8)

  1. 　車室内の空気を導入する内気導入口と、車室外の空気を導入する外気導入口とが外部に開放するように形成され、上記内気導入口及び上記外気導入口の両方に連通する上層空気通路及び下層空気通路が内部に形成されるとともに、上記内気導入口及び上記外気導入口を開閉する内外気切替ダンパを有するケーシングと、
    　上記上層空気通路に回転中心線が上下方向に延びるように配設される上層送風用ファンと、
    　上記下層空気通路に回転中心線が上下方向に延びるように配設される下層送風用ファンと、
    　上記上層送風用ファン及び上記下層送風用ファンを回転駆動するモーターとを備え、
    　上記上層送風用ファンによって上記上層空気通路内の空気を空調用空気として送風し、上記下層送風用ファンによって上記下層空気通路内の空気を空調用空気として送風するように構成された車両空調用送風装置において、
    　上記ケーシングの底壁部には、回転軸が上方へ突出するように上記モーターが取り付けられ、該回転軸に上記上層送風用ファン及び上記下層送風用ファンが連結され、
    　上記ケーシングには、上記下層送風用ファンを収容する下層スクロール部が上記底壁部から上方に離れて設けられるとともに、該下層スクロール部の内部に連通する下層ベルマウス口を形成する下層ベルマウス形成部材が設けられ、
    　上記下層ベルマウス形成部材には、上記モーターを上方から覆うモーター覆い部が設けられ、
    　上記モーター覆い部と上記ケーシングの底壁部との間にはシール材が設けられていることを特徴とする車両空調用送風装置。     An upper air passage that is formed so that an inside air introduction port that introduces air inside the vehicle interior and an outside air introduction port that introduces air outside the vehicle compartment are open to the outside and communicates with both the inside air introduction port and the outside air introduction port And a casing having an inside / outside air switching damper for opening and closing the inside air introduction port and the outside air introduction port, and a lower air passage formed therein,
    An upper air blowing fan disposed in the upper air passage so that a rotation center line extends in the vertical direction;
    A lower layer blower fan disposed in the lower layer air passage so that the rotation center line extends in the vertical direction;
    A motor for rotationally driving the upper layer blowing fan and the lower layer blowing fan,
    The vehicle air conditioning fan configured to blow air in the upper air passage as air conditioning air by the upper air blowing fan and to blow air in the lower air passage as air conditioning air by the lower air blowing fan. In the device
    The motor is attached to the bottom wall portion of the casing so that the rotation shaft protrudes upward, and the upper layer blowing fan and the lower layer blowing fan are connected to the rotation shaft,
    The casing is provided with a lower scroll portion for housing the lower fan for blowing the lower layer away from the bottom wall portion, and a lower bell mouth forming a lower bell mouth opening communicating with the inside of the lower scroll portion. Members are provided,
    The lower bellmouth forming member is provided with a motor cover that covers the motor from above,
    A blower for vehicle air conditioning, wherein a sealing material is provided between the motor cover and the bottom wall of the casing.
  2. 　請求項１に記載の車両空調用送風装置において、
    　上記下層ベルマウス形成部材における上記下層ベルマウス口よりも下方に上記モーター覆い部が上記下層ベルマウス口の径方向に延びるように設けられ、
    　上記ケーシングの上記底壁部には、上記モーター覆い部の下部が嵌合する嵌合孔が形成されていることを特徴とする車両空調用送風装置。     The blower for vehicle air conditioning according to claim 1,
    The motor cover is provided below the lower bellmouth mouth in the lower bellmouth forming member so as to extend in the radial direction of the lower bellmouth mouth,
    An air blower for vehicle air conditioning, wherein a fitting hole into which a lower portion of the motor covering portion is fitted is formed in the bottom wall portion of the casing.
  3. 　請求項２に記載の車両空調用送風装置において、
    　上記モーター覆い部の下部と上記嵌合孔との間には、上記シール材が設けられていることを特徴とする車両空調用送風装置。     The blower for vehicle air conditioning according to claim 2,
    The vehicle air conditioning blower characterized in that the sealing material is provided between a lower portion of the motor cover and the fitting hole.
  4. 　請求項２に記載の車両空調用送風装置において、
    　上記モーター覆い部の下部は、上記モーターが有するフランジに嵌合するように形成されていることを特徴とする車両空調用送風装置。     The blower for vehicle air conditioning according to claim 2,
    A lower part of the motor cover is formed to fit into a flange of the motor.
  5. 　請求項４に記載の車両空調用送風装置において、
    　上記モーター覆い部の下部及び上記モーターの上記フランジは共通の締結部材によって上記ケーシングに締結固定されていることを特徴とする車両空調用送風装置。     The vehicle air conditioner blower according to claim 4,
    A blower for vehicle air conditioning, wherein a lower portion of the motor cover and the flange of the motor are fastened and fixed to the casing by a common fastening member.
  6. 　請求項１に記載の車両空調用送風装置において、
    　上記下層ベルマウス形成部材の上部に上記下層ベルマウス口が形成され、
    　上記下層ベルマウス形成部材における上記下層ベルマウス口の径方向外側部分は、上記ケーシングに嵌合していることを特徴とする車両空調用送風装置。     The blower for vehicle air conditioning according to claim 1,
    The lower bell mouth is formed on the lower bell mouth forming member,
    A blower for vehicle air conditioning, wherein a radially outer portion of the lower bellmouth mouth in the lower bellmouth forming member is fitted to the casing.
  7. 　請求項１に記載の車両空調用送風装置において、
    　上記モーター覆い部には、上記モーターの上記回転軸方向に沿って延びる縦板部が形成され、該縦板部は、上記回転軸を囲むように配置されていることを特徴とする車両空調用送風装置。     The blower for vehicle air conditioning according to claim 1,
    The motor cover is formed with a vertical plate portion extending along the rotation axis direction of the motor, and the vertical plate portion is disposed so as to surround the rotation shaft. Blower device.
  8. 　請求項３に記載の車両空調用送風装置において、
    　上記モーター覆い部の下部には、上記嵌合孔の内周面に対向するように配置される対向面が設けられ、
    　上記シール材は、上記対向面と上記嵌合孔の内周面との間に配置され、上記対向面と上記嵌合孔の内周面とで圧縮されていることを特徴とする車両空調用送風装置。     The blower for vehicle air conditioning according to claim 3,
    A lower surface of the motor cover is provided with a facing surface arranged to face the inner peripheral surface of the fitting hole,
    The said sealing material is arrange | positioned between the said opposing surface and the internal peripheral surface of the said fitting hole, and is compressed by the said opposing surface and the internal peripheral surface of the said fitting hole, For vehicle air conditioning characterized by the above-mentioned. Blower device.
PCT/JP2018/011691 2017-03-29 2018-03-23 Vehicle air-conditioner blowing apparatus WO2018180980A1 (en)

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JP7195061B2 (en) * 2018-06-12 2022-12-23 株式会社日本クライメイトシステムズ Air blower for vehicle air conditioning
JP2020083120A (en) * 2018-11-28 2020-06-04 株式会社日本クライメイトシステムズ Blower for vehicle air conditioning
KR20210031183A (en) * 2019-09-11 2021-03-19 한온시스템 주식회사 Blower unit for vehicle and air conditioner having the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011230589A (en) * 2010-04-26 2011-11-17 Denso Corp Blower unit of vehicle air conditioner
JP2012166658A (en) * 2011-02-14 2012-09-06 Denso Corp Blower unit
WO2017208657A1 (en) * 2016-05-30 2017-12-07 株式会社デンソー Blower unit and method for manufacturing blower unit

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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011230589A (en) * 2010-04-26 2011-11-17 Denso Corp Blower unit of vehicle air conditioner
JP2012166658A (en) * 2011-02-14 2012-09-06 Denso Corp Blower unit
WO2017208657A1 (en) * 2016-05-30 2017-12-07 株式会社デンソー Blower unit and method for manufacturing blower unit

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