WO2019188365A1 - Blower device for air-conditioning of vehicle - Google Patents

Blower device for air-conditioning of vehicle Download PDF

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Publication number
WO2019188365A1
WO2019188365A1 PCT/JP2019/010656 JP2019010656W WO2019188365A1 WO 2019188365 A1 WO2019188365 A1 WO 2019188365A1 JP 2019010656 W JP2019010656 W JP 2019010656W WO 2019188365 A1 WO2019188365 A1 WO 2019188365A1
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WO
WIPO (PCT)
Prior art keywords
air
blower
blade
vehicle
plate portion
Prior art date
Application number
PCT/JP2019/010656
Other languages
French (fr)
Japanese (ja)
Inventor
米原　真司
伯方　俊樹
武史 田中
Original Assignee
株式会社日本クライメイトシステムズ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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 WO2019188365A1 publication Critical patent/WO2019188365A1/en

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Classifications

    • 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
    • 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
    • B60H1/32—Cooling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps

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 device for vehicle air conditioning has 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 scroll casing that houses the blower fan is composed of an upper scroll casing and a lower scroll casing, and the upper part of the lower scroll casing is fitted to the lower part of the lower scroll casing.
  • the upper scroll casing and the lower scroll casing are integrated.
  • a partition plate extending in the horizontal direction is disposed inside the scroll casing in the middle in the vertical direction, and the interior of the scroll casing is partitioned into an upper air passage and a lower air passage by this partition plate.
  • the peripheral edge of the partition plate is sandwiched between the lower part of the upper scroll casing and the upper part of the lower scroll casing in the vertical direction.
  • the blower fan for realizing the inside / outside air two-layer flow mode is an upper side extending upward from a part called a cone part formed so as to extend from a fixed part fixed to the rotating shaft of the motor to surrounding blades.
  • the lower blade is provided with a blade and a lower blade extending downward, and the air in the upper air passage is sent by the upper blade, and the air in the lower air passage is sent by the lower blade.
  • the lower end of the upper blade and the upper end of the lower blade are not mixed with the air in the upper air passage and the air in the lower air passage. Need to be separated in the vertical direction to form a gap between them.
  • the rigidity of the blower fan is reduced, which may cause deformation and breakage of the upper blades.
  • the present invention has been made in view of the above points, and an object of the present invention is to improve the stability during rotation of the blower fan for realizing the inside / outside air two-layer flow mode, and to blow the fan. It is to prevent the blade from being deformed or broken in advance.
  • the first invention is provided with an inside air introduction port for introducing air inside the vehicle interior and an outside air introduction port for introducing air outside the vehicle compartment, and the inside air introduction port and the outside air introduction port are formed.
  • the blower fan includes: a centrifugal blower fan having a first blade and a second blade that are long in the vertical direction; and a motor having a rotating shaft that extends in the vertical direction and rotationally drives the blower fan.
  • the air in the first air passage is blown as air-conditioning air by the first blade
  • the air in the second air passage is blown as air-conditioning air by the second blade of the blower fan.
  • the blower fan is disposed on the upper side of the motor, and the blower fan is fixed to the rotating shaft, and the fixed part is fixed to the fixed part.
  • a cone portion that extends in the radial direction of the rotating shaft and is recessed downward so that the fixed portion side is positioned below, and the outer peripheral portion of the cone portion extends in the radial direction of the rotating shaft.
  • the extending portion includes a vertical plate portion protruding in one of the vertical directions, and a horizontal plate portion extending in the radial direction of the rotating shaft from the protruding end portion of the vertical plate portion.
  • the longitudinal end of one of the first and second blades is coupled to the horizontal plate, and the longitudinal end of the other blade is the vertical plate in the extension. It is characterized by being coupled to the surface opposite to the protruding direction.
  • the inside air circulation mode in which the inside air is introduced from the inside air introduction port is set.
  • the inside air circulation mode when the blower fan rotates, the inside air introduced from the inside air introduction port flows through the first air passage and the second air passage by the first blade and the second blade and is blown as air-conditioning air.
  • the outside air introduction mode in which outside air is introduced from the outside air introduction port is set.
  • the blower fan rotates, so that outside air introduced from the outside air introduction port flows through the first air passage and the second air passage and is blown as air-conditioning air. Furthermore, when the inside air introduction port and the outside air introduction port are opened by the operation of the inside / outside air switching damper, the inside / outside air two-layer flow mode is set, and the blower fan rotates so that the outside air introduced from the outside air introduction port is the first air.
  • the inside air introduced from the inside air introduction port flows through one of the passage and the second air passage, and flows through the other to be blown as air for air conditioning. That is, the air can be blown by switching to any mode among the outside air introduction mode, the inside air circulation mode, and the inside / outside air two-layer flow mode.
  • the cone part of the blower fan is shaped to be depressed downward so that the fixed part side is positioned below, the rotation axis of the motor is shortened, and the blower fan is rotated. Increased stability.
  • the extended portion of the cone portion is provided with a vertical plate portion protruding in the vertical direction and a horizontal plate portion extending in the radial direction from the end portion of the vertical plate portion. It will be reinforced by the plate part. Since the end portions of the first blade and the second blade are coupled to the reinforced portion, a reduction in rigidity of the blower fan is suppressed.
  • first blade and the second blade are coupled to the horizontal plate portion and the other blade is coupled to the extending portion.
  • first blade and the second blade are separated in the vertical direction.
  • a gap is formed between the first blade and the second blade. This makes it difficult for the air in the first air passage and the air in the second air passage to mix.
  • the vertical plate portion protrudes downward from the extending portion, and the horizontal plate portion extends in a radial direction of the rotary shaft from a lower end portion of the vertical plate portion,
  • the first blade is formed such that a lower end portion is coupled to the upper surface of the extending portion and extends upward, and the second blade is configured such that the upper end portion is coupled to the lower surface of the horizontal plate portion and extends downward. It is characterized by being formed.
  • the horizontal plate portion is located below the extension portion, the first blade is coupled to the extension portion, and the second blade is coupled to the horizontal plate portion.
  • a gap can be formed between the first blade and the second blade.
  • the vertical plate portion protrudes upward from the extension portion, and the horizontal plate portion extends in a radial direction of the rotary shaft from an upper end portion of the vertical plate portion,
  • the first blade is formed such that a lower end portion is coupled to the upper surface of the horizontal plate portion and extends upward, and the second blade is configured such that an upper end portion is coupled to the lower surface of the extension portion and extends downward. It is characterized by being formed.
  • the horizontal plate portion is located above the extension portion, the first blade is coupled to the horizontal plate portion, and the second blade is coupled to the extension portion.
  • a gap can be formed between the first blade and the second blade.
  • the fourth invention is characterized in that, in the second invention, the vertical plate portion protrudes from a portion where the radially inner end portion of the first blade in the extending portion is coupled.
  • the vicinity of the portion where the radially inner end portion of the first blade in the extension portion is coupled has increased rigidity due to the coupling of the first blade, and the vertical plate portion protrudes from the highly rigid portion. By doing so, the rigidity is further improved.
  • the fifth invention is characterized in that, in the second invention, the vertical plate portion protrudes from a portion where the radial intermediate portion of the first blade in the extending portion is coupled.
  • the vicinity of the portion where the radial intermediate portion of the first blade in the extension portion is coupled is increased in rigidity by the coupling of the first blade, and the vertical plate portion is protruded from the highly rigid portion. As a result, the rigidity is further improved.
  • the blower fan is integrally formed of a resin material, and the horizontal plate portion, the extending portion, and the vertical plate portion are arranged radially outward of the rotary shaft. An open space is formed.
  • a partition plate for partitioning the interior of the casing into the first air passage and the second air passage is disposed in the casing, and the partition plate Is formed with a through-hole into which the blower fan is inserted from one of the first air passage and the second air passage toward the other, and the height of the peripheral edge of the through-hole is the extension portion and It is the same as the height of the intermediate portion in the vertical direction of the horizontal plate portion.
  • the height of the peripheral portion of the through hole of the partition plate and the height of the extending portion of the blower fan and the intermediate portion in the vertical direction of the horizontal plate portion coincide with each other.
  • the air in the two air passages becomes even more difficult to mix.
  • the horizontal plate portion extends radially outward of the rotary shaft, and a radial outer end portion of the rotary shaft in the horizontal plate portion is in the extended portion.
  • the rotating shaft extends outward from the radially outer end of the rotating shaft.
  • the fixed portion is provided so as to protrude to the inside of the cone portion, and the inner side of the cone portion is connected to an outer peripheral surface of the fixed portion, A rib extending in the radial direction is provided.
  • the radially inner side of the cone portion is reinforced by the rib.
  • the rotation shaft of the motor can be shortened and the stability during rotation of the blower fan can be increased.
  • a vertical plate portion and a horizontal plate portion are provided in the extending portion of the outer peripheral portion of the cone portion, and the end portion of one of the first blade and the second blade is coupled to the horizontal plate portion, and the longitudinal direction of the other blade Since the end portion of the fan is coupled to the surface of the extending portion opposite to the protruding direction of the vertical plate portion, the rigidity of the blower fan can be secured, and the blades can be prevented from being deformed or broken. it can.
  • the first blade is coupled to the extension portion, and the second blade is coupled to the horizontal plate portion.
  • a gap can be formed between the first blade and the second blade.
  • the horizontal plate portion is located above the extension portion, the first blade is connected to the horizontal plate portion, and the second blade is connected to the extension portion.
  • a gap can be formed between the first blade and the second blade.
  • the vicinity of the portion where the radially inner end of the first blade in the extending portion is coupled is increased in rigidity by the coupling of the first blade, and the vertical plate portion extends from this highly rigid portion.
  • the rigidity can be further improved to prevent the blade from being deformed or broken.
  • the vicinity of the portion where the radial intermediate portion of the first blade in the extension portion is coupled is increased in rigidity by the coupling of the first blade, and the vertical plate portion is moved from the highly rigid portion.
  • the rigidity can be further improved to prevent the blades from being deformed or broken.
  • the space formed by the horizontal plate portion, the extending portion, and the vertical plate portion is opened outward in the radial direction, it is possible to avoid complication of the mold structure when forming the blower fan. And cost can be reduced.
  • the seventh aspect since the height of the peripheral edge portion of the through hole of the partition plate and the height of the extending portion of the blower fan and the intermediate portion in the vertical direction of the horizontal plate portion coincide with each other, the air in the first air passage And the air in the second air passage are less likely to be mixed, and a sufficient amount of air can be secured.
  • the radial positions of the blades coupled to the horizontal plate portion and the blades coupled to the extending portion can be easily changed.
  • the radial inner side of the cone portion can be reinforced, and the rigidity of the blower fan is improved overall. Can be increased.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 1. It is a top view of the fan for ventilation.
  • FIG. 6 is a sectional view taken along line VI-VI in FIG. 5.
  • FIG. 7 is a view corresponding to FIG. 6 according to Modification 1 of the embodiment.
  • FIG. 7 is a diagram corresponding to FIG. 6 according to Modification 2 of the embodiment.
  • FIG. 7 is a view corresponding to FIG. 6 according to Modification 3 of the embodiment.
  • FIG. 6 is a view corresponding to FIG. 5 according to Modification 4 of the embodiment.
  • FIG. 6 is a view corresponding to FIG. 6 according to Modification 4 of the embodiment. It is a bottom view of the fan for ventilation concerning modification 4 of an embodiment.
  • 13A is an enlarged view of a part A in FIG. 11
  • FIG. 13B is a view corresponding to FIG. 13A according to the modification 5
  • FIG. 13C is a view corresponding to FIG. 13A according to the modification 6.
  • FIG. 13 is a diagram corresponding to FIG. 12 according to Modification 7 of the embodiment.
  • FIG. 13 is a view corresponding to FIG. 12 according to Modification 8 of the embodiment.
  • FIG. 1 is a view of a vehicle air-conditioning blower 1 according to an embodiment of the present invention as seen from the rear side of the vehicle
  • FIG. 2 is a view of the vehicle air-conditioning blower 1 as seen from the left side
  • FIG. It is the figure which looked at the air blower 1 for vehicle air conditioning from the downward direction.
  • 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-conditioner together with an air conditioning unit and a refrigeration cycle device (not shown).
  • the air conditioning unit includes, for example, a cooling heat exchanger composed of an evaporator of a refrigeration cycle, a heating heat exchanger composed of a heater core, an air mix damper, a blowing direction switching damper, and an air conditioning casing that accommodates these.
  • a cooling heat exchanger composed of an evaporator of a refrigeration cycle
  • a heating heat exchanger composed of a heater core
  • an air mix damper composed of a blowing direction switching damper
  • an air conditioning casing that accommodates 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.
  • the temperature of the conditioned air is adjusted by the amount of air passing through the heating heat exchanger set by the air mix damper.
  • front side of the vehicle is simply referred to as “front”
  • rear side of the vehicle is simply referred to as “rear”
  • left side of the vehicle is simply referred to as “left”
  • right side of the vehicle is simply referred to as “right”. This is only defined for convenience of explanation, and does not limit the actual use state, installation state, and assembly state.
  • 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).
  • the vehicle air-conditioning blower 1 is arranged on the right side of the vehicle will be described. Detailed description is omitted.
  • the vehicle on 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 includes a blower casing 2, a blower fan 3, a motor 5 for rotationally driving the blower fan 3, a first inside / outside air switching damper 6, A second inside / outside air switching damper 7, an air filter 8, and an inside / outside air switching actuator 9 (shown in FIGS. 1 and 2) are provided.
  • the blower fan 3, the first inside / outside air switching damper 6, the second inside / outside air switching damper 7, and the air filter 8 are accommodated in the blowing casing 2.
  • the front inside air introduction port 2a and the rear inside air introduction port 2b shown in FIG. 2 and the outside air introduction port 2c shown in FIG. 4 are formed on the upper side of the blower casing 2.
  • the front inside air introduction port 2 a is formed at a position closer to the front than the central portion in the front-rear direction on the upper side of the blower casing 2, and opens into the vehicle interior.
  • the rear inside air introduction port 2b is formed at a position closer to the rear than the central portion in the front-rear direction on the upper side of the blower casing 2, and opens into the vehicle interior.
  • Air in the vehicle compartment inside air
  • an outside air introduction duct portion 2 d is formed in the blower casing 2 so as to bulge upward from a portion between the front inside air introduction port 2 a and the rear inside air introduction port 2 b. It is integrally molded.
  • the upper side of the outside air introduction duct portion 2d extends forward.
  • An outside air introduction port 2c is opened at the front end of the outside air introduction duct portion 2d.
  • the outside air introduction duct portion 2d is connected to the cowl, and the outside air introduction port 2c communicates with the outside of the vehicle compartment via the cowl. Air outside the passenger compartment (outside air) can be introduced into the blower casing 2 from the outside air inlet 2c.
  • the filter 8 is accommodated below the front inside air introduction port 2a, the rear inside air introduction port 2b, and the outside air introduction port 2c inside the blower casing 2.
  • the filter 8 is formed in a plate shape and is disposed so as to extend in the horizontal direction.
  • the peripheral portion of the filter 8 is supported by a filter support portion 2 e provided inside the blower casing 2.
  • a filter insertion hole 2 f for inserting the filter 8 into the blower casing 2 is formed in the rear wall portion of the blower casing 2.
  • the filter insertion hole 2 f is closed by a lid portion 8 a provided at the rear end portion of the filter 8.
  • the filter 8 can be comprised with a general nonwoven fabric etc., for example.
  • a partition wall 2g is provided above the filter 8 inside the blower casing 2.
  • the partition wall 2g extends in the vertical direction, and is slightly inclined so as to be positioned closer to the lower end.
  • a first air passage R1 is formed at the front side of the partition wall portion 2g, and a second air passage R2 is formed at the rear side of the partition wall portion 2g.
  • the width in the front-rear direction of the first air passage R1 is set wider than the width in the front-rear direction of the second air passage R2, and the cross-sectional area of the first air passage R1 is wider than the cross-sectional area of the second air passage R2. It has become.
  • the upstream end (upper end) of the first air passage R1 communicates with the front inside air inlet 2a and the outside air inlet 2c.
  • the upstream end (upper end) of the second air passage R2 communicates with the rear inside air introduction port 2b and the outside air introduction port 2c.
  • the first air passage R1 and the second air passage R2 communicate with a common outside air introduction port 2c, but the inside air introduction port communicates with different inside air introduction ports 2a and 2b. Thereby, it becomes a structure which can introduce
  • the first inside / outside air switching damper 6 is disposed in front of the partition wall portion 2g inside the blower casing 2, and includes a closing plate portion 6a, a shaft portion 6b, and an end plate portion 6c.
  • the blocking plate portion 6a extends in the left-right direction.
  • the shaft portion 6b also extends in the left-right direction, and is supported so as to be rotatable with respect to the left and right side walls of the blower casing 2.
  • the end plate portion 6c is provided in the vicinity of both ends in the left-right direction of the shaft portion 6b.
  • the end plate portion 6c extends in the radial direction from the shaft portion 6b and continues to both left and right end portions of the closing plate portion 6a.
  • the closing plate portion 6a, the shaft portion 6b, and the end plate portion 6c are integrally formed.
  • the first inside / outside air switching damper 6 is rotated around the center line of the shaft portion 6b, thereby switching between a state rotated toward the front as shown in FIG. 4 and a state rotated toward the rear although not shown. It is done.
  • the front inside air introduction port 2a is closed and the outside air introduction port 2c is opened, so that the inflow of inside air is blocked and the outside air is the first air. It is introduced upstream of the passage R1.
  • the second inside / outside air switching damper 7 is disposed on the rear side of the partition wall 2g inside the blower casing 2, and similarly to the first inside / outside air switching damper 6, the closing plate portion 7a, the shaft portion 7b, And an end plate portion 7c.
  • the second inside / outside air switching damper 7 is rotated around the center line of the shaft portion 7b to switch between a state where the second inside / outside air switching damper 7 is rotated backward as shown in FIG. It is done.
  • the second inside / outside air switching damper 7 is rotated backward, the rear inside air introduction port 2b is closed and the outside air introduction port 2c is opened, so that the inflow of the inside air is blocked and the outside air flows into the second air passage R2.
  • the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 are driven by an inside / outside air switching actuator 9 shown in FIGS.
  • the inside / outside air switching actuator 9 is controlled by an air conditioning control device.
  • a link member 9 a is engaged with the shaft portion 6 b of the first inside / outside air switching damper 6 and the shaft portion 7 b of the second inside / outside air switching damper 7, and the link member 9 a is rotated by the inside / outside air switching actuator 9.
  • the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 can be interlocked.
  • first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 using the link member 9a Since a well-known technique can be used for the interlocking structure of the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 using the link member 9a, detailed description thereof is omitted. Alternatively, the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 may be driven separately without using the link member 9a.
  • the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 are driven as follows. That is, as shown in FIG. 4, the outside air introduction mode in which the first inside / outside air switching damper 6 is rotated forward and the second inside / outside air switching damper 7 is rotated backward, and the first inside / outside air switching damper.
  • the internal air circulation mode in which the second internal / external air switching damper 7 is rotated forward and the first internal / external air switching damper 6 is rotated forward and the second internal / external air switching is performed.
  • the inside / outside air two-layer flow mode in which the damper 7 is rotated forward the mode can be switched to an arbitrary mode.
  • the first inside / outside air switching damper 6 In the outside air introduction mode, since the first inside / outside air switching damper 6 is rotated forward and the second inside / outside air switching damper 7 is rotated backward, the first air passage R1 and the second air passage R2 Only outside air is introduced.
  • the inside air circulation mode since the first inside / outside air switching damper 6 rotates backward and the second inside / outside air switching damper 7 rotates forward, the first air passage R1 and the second air passage R2 Only shyness is introduced.
  • the first internal / external air two-layer flow mode In the internal / external air two-layer flow mode, the first internal / external air switching damper 6 rotates forward and the second internal / external air switching damper 7 rotates forward, so that the external air is in the first air passage R1.
  • the inside air is introduced into the second air passage R2.
  • the inside / outside air two-layer flow mode is a mode used during heating.
  • 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.
  • 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.
  • a scroll casing 20 in which the blower fan 3 is accommodated is provided below the inside air inlets 2a, 2b and the outside air inlet 2c of the blower casing 2.
  • the scroll casing 20 includes an upper scroll casing 21 in which a portion provided with the upper blades (first blades) 30 in the blower fan 3 is housed, and a lower side in the blower fan 3. It is divided into a lower scroll casing 22 in which a portion provided with blades (second blades) 31 is accommodated.
  • the upper blade 30 and the lower blade 31 can also be called blades.
  • a bottom wall member 23 is provided at the bottom of the scroll casing 20.
  • the bottom wall member 23 is a member constituting the scroll casing 20.
  • the scroll casing 20 is constituted by the upper scroll casing 21, the lower scroll casing 22 and the bottom wall member 23.
  • a partition plate 24 for partitioning the inside of the scroll casing 20 in the vertical direction is disposed inside the scroll casing 20, and this partition plate 24 is also a member constituting the scroll casing 20.
  • a substantially circular first bell mouth opening 21 a is formed in the upper wall portion of the upper scroll casing 21 so as to open inside the blower casing 2.
  • the first bell mouth opening 21a is disposed so as to face the lower surface of the filter 8, and communicates with the first air passage R1.
  • a protruding wall portion 21 b that protrudes upward is provided on the upper wall portion of the upper scroll casing 21.
  • the protruding wall 21b is positioned behind the opening edge of the first bell mouth opening 21a and extends in the left-right direction.
  • the upper end portion of the protruding wall portion 21b reaches the vicinity of the lower end portion of the partition wall portion 2g.
  • the upper side of the upper scroll casing 21 inside the blower casing 2 is partitioned in the front-rear direction by the protruding wall portion 21b and the partition wall portion 2g, and the first air passage is located in front of the protruding wall portion 21b and the partition wall portion 2g.
  • R1 is formed, and the second air passage R2 is formed behind the protruding wall portion 21b and the partition wall portion 2g.
  • the first air passage R1 communicates with the inside of the upper scroll casing 21 through the first bell mouth opening 21a, and the inside of the upper scroll casing 21 is a part of the first air passage R1.
  • a portion above the partition plate 24 is a first air passage R1.
  • a portion of the blower fan 3 where the upper blades 30 are provided is disposed in the first air passage R ⁇ b> 1 inside the upper scroll casing 21.
  • the air in the first air passage R1 is blown as air-conditioning air by the portion of the blower fan 3 where the upper blades 30 are provided. That is, the portion of the blower fan 3 where the upper blades 30 are provided is a portion that forms an air flow in the upper layer.
  • the partition plate 24 is formed with a through hole 24a into which the blower fan 3 is inserted from the second air passage R2 toward the first air passage R1.
  • the height of the peripheral portion of the through hole 24a is coincident with the height of the extending portion 34f of the blower fan 3 and the intermediate portion in the vertical direction of the horizontal plate portion 38 described later.
  • an upper air outlet 21 c connected to the air conditioning unit is formed on the front side of the left side wall portion of the upper scroll casing 21.
  • the downstream end of the first air passage R1 communicates with the upper air outlet 21c, and the air in the first air passage R1 is blown out of the upper scroll casing 21 from the upper air outlet 21c. .
  • the second air passage R ⁇ b> 2 extends downward in the rear side of the upper scroll casing 21, and the lower end of the second air passage R ⁇ b> 2 reaches the bottom wall member 23.
  • the lower wall portion of the lower scroll casing 22 is spaced upward from the bottom wall member 23, and the lower end portion of the second air passage R2 is located between the lower wall portion of the lower scroll casing 22 and the bottom wall member 23. is doing.
  • a bell mouth constituent member 22b having a substantially circular second bell mouth opening 22a is provided on the lower wall portion of the lower scroll casing 22 .
  • the second bell mouth opening 22a is disposed to face the bottom wall member 23 and communicates with the lower end of the second air passage R2.
  • the second bell mouth opening 22a and the first bell mouth opening 21a are located concentrically.
  • the bell mouth constituent member 22 b is adapted to be fitted to the peripheral edge portion of the opening 22 c formed in the lower wall portion of the lower scroll casing 22.
  • the lower end of the second air passage R2 communicates with the inside of the lower scroll casing 22 via the second bell mouth opening 22a, and the inside of the lower scroll casing 22 is a part of the second air passage R2. It has become.
  • a portion below the partition plate 24 is a second air passage R2.
  • the portion of the blower fan 3 where the lower blades 31 are provided is disposed in the second air passage R ⁇ b> 2 inside the lower scroll casing 22.
  • the blower fan 3 rotates, the air in the second air passage R2 is blown as air-conditioning air by the portion of the blower fan 3 where the lower blades 31 are provided. That is, the portion of the blower fan 3 where the lower blade 31 is provided is a portion that forms an air flow in the lower layer.
  • a lower air outlet 22 c connected to the air conditioning unit is formed on the front side of the left side wall portion of the lower scroll casing 22.
  • the lower air outlet 22c is located directly below the upper air outlet 21c.
  • the downstream end of the second air passage R2 communicates with the lower air outlet 22c, and the air in the second air passage R2 is blown out of the lower scroll casing 22 from the lower air outlet 22c. It has become.
  • the bottom wall member 23 is a cover-like member that is formed so as to cover the lower end portion of the lower scroll casing 22 and covers the lower end portion.
  • the peripheral edge portion of the bottom wall member 23 is formed so as to be fitted to the peripheral edge portion of the lower end portion of the lower scroll casing 22, and the peripheral edge portion of the bottom wall member 23 and the lower end portion of the lower scroll casing 22. Air is prevented from leaking between the parts.
  • the motor 5 is attached to the bottom wall member 23 via a motor attachment member 5a.
  • a blower fan 3 is disposed above the motor 5.
  • the motor attachment member 5 a is fixed to the bottom wall member 23.
  • the motor 5 is attached to the motor attachment member 5a.
  • the motor 5 includes a main body 5b incorporating a rotor and the like, a rotary shaft 5c extending in the vertical direction, and a cover 5d that covers the main body 5b from above.
  • the rotating shaft 5c protrudes upward from the upper end portion of the main body 5b, passes through the cover 5d, and further protrudes upward from the cover 5d.
  • the first bell mouth opening 21a and the second It is arranged concentrically with the bell mouth opening 22a.
  • the upper end portion of the rotating shaft 5c is located above the second bell mouth opening 22a.
  • the cover portion 5d is provided with a cylindrical portion 5e surrounding the rotating shaft 5c.
  • the cylindrical part 5e can be formed in a cylindrical shape and is arranged concentrically with the rotating shaft 5c.
  • a plurality of arc-shaped wall portions may be provided instead of the cylindrical portion 5e.
  • the rotating shaft 5c protrudes upward from the upper end portion of the cylindrical portion 5e.
  • the blower fan 3 is fixed to the rotary shaft 5c, and the blower fan 3 and the rotary shaft 5c rotate integrally. Therefore, when a voltage is applied to the main body 5b of the motor 5, the rotational force of the rotating shaft 5c is transmitted to the blower fan 3, and the portion of the blower fan 3 where the upper blades 30 are provided is the first air passage R1. The portion provided with the lower blade 31 in the blower fan 3 rotates in the second air passage R2.
  • An air conditioning control device (not shown) is connected to the main body 5b of the motor 5, and a voltage is applied by the air conditioning control device so as to achieve a desired rotation speed.
  • the blower fan 3 includes a fixed portion 33 fixed to the rotating shaft 5 c of the motor 5, and a cone portion 34 extending from the fixed portion 33 in the radial direction of the rotating shaft 5 c. And a large number of upper blades 30 and lower blades 31 fixed to the outside of the cone portion 34 in the radial direction.
  • the upper blade 30 and the lower blade 31 are long in the vertical direction.
  • the fixed portion 33, the cone portion 34, the upper blade 30 and the lower blade 31 can be formed as an integrally molded product made of a resin material, but can also be configured by combining different members.
  • the blower fan 3 is a centrifugal fan.
  • the fixed portion 33 is formed in a cylindrical shape having an insertion hole 33a into which the rotating shaft 5c of the motor 5 is inserted.
  • the upper part of the fixed part 33 protrudes upward from the upper surface of the inner peripheral part 34 b of the cone part 34, and therefore the upper part of the fixed part 33 is positioned so as to protrude inside the cone part 34. .
  • the insertion hole 33a of the fixed portion 33 extends in the vertical direction, and both the upper end and the lower end of the insertion hole 33a are open.
  • the rotating shaft 5c of the motor 5 is fixed in a state of being inserted into the insertion hole 33a. Since the means for fixing the fixed portion 33 to the rotating shaft 5c of the motor 5 is conventionally the periphery, detailed description thereof will be omitted.
  • the cone part 34 is formed so as to be depressed downward so that the fixed part 33 side is positioned below the outer peripheral side. That is, the cone part 34 has the outer peripheral part 34a and the inner peripheral part 34b, and the outer peripheral part 34a and the inner peripheral part 34b are integrally molded.
  • the inner peripheral portion 34 b extends radially outward from the intermediate portion in the vertical direction of the outer peripheral surface of the fixed portion 33.
  • the inner peripheral portion 34b can be inclined or curved so as to be positioned closer to the radially outer end portion.
  • the outer peripheral portion 34a extends upward from the radially outer end portion of the inner peripheral portion 34b, and is inclined or curved so that the closer to the upper end portion, the closer to the radially outer side.
  • outer peripheral portion 34a and the inner peripheral portion 34b are merely examples, and the outer peripheral portion 34a and the inner peripheral portion 34b may be smoothly continuous, or the boundary portion between the outer peripheral portion 34a and the inner peripheral portion 34b. It may be a continuous shape so that can be clearly seen.
  • the outer peripheral portion 34a and the inner peripheral portion 34b make the shape of the cone portion 34 recessed downward, for example, a shape that can also be called a bowl shape or a concave shape.
  • the upper end part of the outer peripheral part 34a of the cone part 34 has the extension part 34f extended toward radial direction outward.
  • the extending portion 34f extends in a direction intersecting the rotating shaft 5c of the motor 5, and in this embodiment, the extending portion 34f is curved or inclined so as to be located upward as it goes outward in the radial direction of the rotating shaft 5c.
  • the lower end portion of the outer peripheral portion 34 a is the lowest portion of the cone portion 34.
  • the lower end portion of the upper blade 30 is coupled to the upper surface of the extending portion 34f of the outer peripheral portion 34a of the cone portion 34, and the upper blade 30 is provided so as to extend upward from the upper surface of the extending portion 34f.
  • the blower fan 3 rotates, air is sucked from above the upper blades 30 and blown out radially between the upper blades 30 adjacent in the circumferential direction.
  • a vertical plate portion 37 and a horizontal plate portion 38 are provided on the extending portion 34f of the outer peripheral portion 34a.
  • the vertical plate portion 37 protrudes downward from the lower surface of the extension portion 34 f and is formed in an annular shape concentric with the rotation shaft 5 c of the motor 5.
  • the horizontal plate portion 38 extends outward from the lower end portion of the vertical plate portion 37 in the radial direction of the rotating shaft 5c.
  • the radially outer end portion of the rotating shaft 5c in the horizontal plate portion 38 extends further outward than the radially outer end portion of the rotating shaft 5c in the extending portion 34f.
  • the upper end of the lower blade 31 is joined to the lower surface of the horizontal plate portion 38, and the lower blade 31 is formed to extend downward.
  • a space that opens outward in the radial direction of the rotating shaft 5c is formed by the horizontal plate portion 38, the extending portion 34f, and the vertical plate portion 37.
  • first ribs 35 and second ribs 36 extending in the radial direction of the rotation shaft 5 c are provided on the upper surface of the cone portion 34.
  • the first rib 35 and the second rib 36 are connected to the outer peripheral surface of the fixed portion 33 and are also connected to the outer peripheral portion 34 a of the cone portion 34. That is, the first rib 35 and the second rib 36 are reinforcing ribs extending in the radial direction from the outer peripheral surface of the fixed portion 33 until reaching the outer peripheral portion 34a of the cone portion 34.
  • the fixed portion 33, the outer peripheral portion 34a, Can also be referred to as connecting ribs that connect the two.
  • the first rib 35 is higher than the second rib 36, and the radial dimension of the first rib 35 is set longer than the radial dimension of the second rib 36.
  • the first ribs 35 and the second ribs 36 are alternately provided in the circumferential direction of the rotation shaft 5c.
  • the lower ends of the first rib 35 and the second rib 36 are connected to the inner peripheral part 34 b of the cone part 34. Therefore, the fixed portion 33, the inner peripheral portion 34 b of the cone portion 34, and the outer peripheral portion 34 a of the cone portion 34 are connected and integrated by the first rib 35 and the second rib 36.
  • One or both of the first rib 35 and the second rib 36 may be omitted.
  • the upper ends of the first rib 35 and the second rib 36 are positioned below the lower end of the upper blade 30. Thereby, since the 1st rib 35 and the 2nd rib 36 become difficult to inhibit the flow of a wind, sufficient air volume can be ensured.
  • the plurality of first ribs 35 are arranged at equal intervals in the circumferential direction of the rotation shaft 5c.
  • the plurality of second ribs 36 are also arranged at equal intervals in the circumferential direction of the rotation shaft 5c.
  • the intervals between the first ribs 35 and the second ribs 36 adjacent to each other in the circumferential direction of the rotation shaft 5c are all set equal. Thereby, the balance at the time of rotation of the fan 3 for ventilation becomes favorable.
  • the outside air introduction mode in which the outside air is introduced from the outside air introduction port 2c is set.
  • the outside air introduction mode when the blower fan 3 rotates, the outside air introduced from the outside air introduction port 2c flows through the first air passage R1 and the second air passage R2 and is blown as air-conditioning air.
  • the inside air introduction ports 2a, 2b and the outside air introduction port 2c are opened by the operation of the inside / outside air switching dampers 6, 7, the inside / outside air two-layer flow mode is set, and the blower fan 3 rotates, whereby the outside air introduction port 2c.
  • the outside air introduced from the air flows through the first air passage R1, and the inside air introduced from the inside air introduction ports 2a and 2b flows through the second air passage R2 and is blown as air for air conditioning. That is, according to the vehicle air-conditioning blower 1 according to this embodiment, the air can be blown by switching to any mode among the outside air introduction mode, the inside air circulation mode, and the inside / outside air two-layer flow mode.
  • the cone portion 34 formed so as to be depressed downward, the rotation shaft 5c of the motor 5 can be shortened and the stability during rotation of the blower fan 3 can be enhanced. Further, since the vertical plate portion 37 and the horizontal plate portion 38 are provided on the extending portion 34f of the outer peripheral portion 34a of the cone portion 34, the cone portion 34 is reinforced by the vertical plate portion 37 and the horizontal plate portion 38. . Since the edge part of the upper blade
  • the cone portion 34 that is recessed downward is reinforced by the first rib 35 and the second rib 36.
  • the rigidity of the cone portion 34 can be sufficiently secured.
  • the space formed by the horizontal plate portion 38, the extending portion 34f and the vertical plate portion 37 of the blower fan 3 is opened radially outward, the mold structure at the time of molding the blower fan 3 is complicated. Can be avoided and the cost can be reduced.
  • the extending portion 34 f of the blower fan 3 may have a shape extending in a direction orthogonal to the axial direction of the rotating shaft 5 c of the motor 5.
  • the vertical board part 37 protrudes below from the site
  • the vertical plate portion 37 may protrude downward from a portion where the radial intermediate portion of the upper blade 30 in the extension portion 34 f is coupled. That is, in the vicinity of the portion where the radial direction intermediate portion of the upper blade 30 is coupled in the extended portion 34f, the rigidity is increased by the coupling of the upper blade 30, and the vertical plate portion 37 is protruded from this highly rigid portion. , The rigidity is further improved.
  • the vertical plate portion 37 protrudes upward from the extending portion 34 f, and the horizontal plate portion 38 extends from the upper end portion of the vertical plate portion 37 in the radial direction of the rotary shaft 5 c. It may be.
  • the lower end portion of the upper blade 30 is coupled to the upper surface of the horizontal plate portion 38.
  • the upper end portion of the lower blade 31 is coupled to the lower surface of the extending portion 34f.
  • the cone part 34 is provided with a plurality of drain holes 34 c for draining water on the upper surface of the cone part 34 to the lower side of the cone part 34.
  • the plurality of drain holes 34c are provided at the lower end portion of the outer peripheral portion 34a of the cone portion 34, that is, at the lowest portion of the cone portion 34, and are arranged at intervals in the circumferential direction of the rotating shaft 5c.
  • the inner peripheral portion 34b of the cone portion 34 can be inclined so as to be positioned downward as it comes closer to the radially outer end portion, and thereby, it is inclined downward toward the lower edge portion of the drain hole 34c. Since it becomes a shape, the water on the upper surface of the inner peripheral portion 34b can easily flow toward the drain hole 34c.
  • the intervals between the drain holes 34c can be equal. Further, the drain hole 34c is located away from the upper end portion of the cylindrical portion 5e of the cover portion 5d and positioned radially outward from the cylindrical portion 5e. Accordingly, the drain hole 34c is located outside the cylindrical portion 5e in plan view.
  • the second rib 36 is disposed so as to cross the drain hole 34c. In plan view, the second rib 36 passes through the center of the opening width of the drainage hole 34c, and as a result, one drainage hole 34c is disposed across the second rib 36, The drain hole 34c is divided into two at the center of the opening width. By disposing the second rib 36 in this manner, the opening of the drain hole 34c can be provided at a position where it is not closed. Since the first rib 35 is provided at a position away from the opening of the drain hole 34c, the first rib 35 is also a rib provided at a position where the opening of the drain hole 34c is not closed.
  • a protruding portion 34d is formed that protrudes downward from the radially inner end portion of the rotating shaft 5c in the drain hole 34c.
  • the water flowing downward from the drain hole 34c can easily flow along the protrusion 34d.
  • the protrusion 34d extends in the circumferential direction of the rotating shaft 5c, and a plurality of the protrusions 34d are provided. Further, the protrusions 34d can be provided at equal intervals in the circumferential direction of the rotating shaft 5c.
  • the protrusion 34d can also be formed to extend in an arc shape concentric with the rotation shaft 5c.
  • the protruding portion 34d is located immediately below the first rib 35 and the second rib 36. Since the projecting portion 34d extends in the circumferential direction, the common projecting portion 34d is located at the portion of the cone portion 34 where the first rib 35 is formed and the portion of the cone portion 34 where the second rib 36 is formed. It will be. In addition, since the protruding portion 34d and the first rib 35 and the second rib 36 are positioned so as to overlap in the thickness direction (vertical direction) of the cone portion 34, the rigidity of the cone portion 34 is further improved.
  • the width W of the lower end surface 34e of the protruding portion 34d can be set to 1.0 mm or less. Thereby, the water that has flowed to the lower end surface 34e through the protruding portion 34d can be easily dropped.
  • the lower end surface 34e of the protruding portion 34d can be a curved surface.
  • the lower portion of the protrusion 34d can be formed to be pointed downward.
  • the water that has flowed through the protruding portion 34d can be easily dropped.
  • a protrusion 34g protruding radially outward may be formed at the end of the protrusion 34d. Thereby, it can suppress that water flows radially inward from between the protrusion parts 34d adjacent to the circumferential direction.
  • the protruding portion 34d can be formed in an annular shape that is continuous in the circumferential direction of the rotating shaft 5c, as in Modification 8 of the embodiment shown in FIG.
  • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

An extension section 34f is provided on the outer peripheral section 34a of a cone section 34. The extension section 34f is provided with a vertical plate section 37 and a horizontal plate section 38. An upper blade 30 is joined to the extension section 34f. A lower blade 31 is joined to the horizontal plate section 38.

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１～４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 4, the casing of the air conditioning device for vehicle air conditioning has 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.
　特許文献４の車両空調用送風装置の場合、送風用ファンを収容するスクロールケーシングが上スクロールケーシングと下スクロールケーシングとで構成されており、下スクロールケーシングの上部が下スクロールケーシングの下部に対して嵌合することによって上スクロールケーシング及び下スクロールケーシングが一体化されている。 In the case of the vehicle air-conditioning blower disclosed in Patent Document 4, the scroll casing that houses the blower fan is composed of an upper scroll casing and a lower scroll casing, and the upper part of the lower scroll casing is fitted to the lower part of the lower scroll casing. By combining, the upper scroll casing and the lower scroll casing are integrated.
　スクロールケーシングの内部には、上下方向の中間部に水平方向に延びる仕切板が配設されており、この仕切板により、スクロールケーシングの内部が上層空気通路と下層空気通路とに仕切られている。仕切板の周縁部は、上スクロールケーシングの下部と下スクロールケーシングの上部とで上下方向に挟まれた状態になっている。 A partition plate extending in the horizontal direction is disposed inside the scroll casing in the middle in the vertical direction, and the interior of the scroll casing is partitioned into an upper air passage and a lower air passage by this partition plate. The peripheral edge of the partition plate is sandwiched between the lower part of the upper scroll casing and the upper part of the lower scroll casing in the vertical direction.
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 特開２０１５－６７２６０号公報Japanese Patent Laying-Open No. 2015-67260
　ところで、内外気２層流モードを実現するための送風用ファンは、モーターの回転軸に固定される被固定部から周囲の羽根まで延びるように形成されたコーン部と呼ばれる部分から上側へ延びる上側羽根と、下側へ延びる下側羽根とを備えており、上側羽根によって上層空気通路の空気が送られ、下側羽根によって下層空気通路の空気が送られるようになる。 By the way, the blower fan for realizing the inside / outside air two-layer flow mode is an upper side extending upward from a part called a cone part formed so as to extend from a fixed part fixed to the rotating shaft of the motor to surrounding blades. The lower blade is provided with a blade and a lower blade extending downward, and the air in the upper air passage is sent by the upper blade, and the air in the lower air passage is sent by the lower blade.
　ここで、送風用ファンのコーン部が下方へ窪むような形状とされる場合がある。すなわち、モーターの回転軸が長くなると回転時の安定性を確保しにくくなるので、回転軸を短くしたいという要求があり、回転軸を短くするためには、送風用ファンの被固定部を下に持ってくる必要がある。一方、上側羽根の位置はスクロールケーシングの位置によって決定されるので、モーターの回転軸を短くするためには、コーン部の中心部が外周部に比べて下に位置するように形成し、このことで被固定部を下に位置付ける必要がある。 Here, there is a case where the cone part of the blower fan is depressed downward. In other words, if the rotation axis of the motor becomes longer, it becomes difficult to ensure stability during rotation.Therefore, there is a demand for shortening the rotation axis. It is necessary to bring it. On the other hand, since the position of the upper blade is determined by the position of the scroll casing, in order to shorten the rotation axis of the motor, it is formed so that the center part of the cone part is located below the outer peripheral part. It is necessary to position the fixed part below.
　ところが、被固定部が下に位置すると、送風時に力のかかる部分である被固定部及び上側羽根の間隔が拡大することになり、その結果、送風用ファンの剛性低下を招き、上側羽根の変形や破断の発生原因となり得る。 However, when the fixed part is positioned below, the distance between the fixed part and the upper blade, which is a portion to which force is applied during blowing, is increased, resulting in a decrease in rigidity of the blower fan and the deformation of the upper blade. And can cause breakage.
　また、内外気２層流モードを実現するための送風用ファンの場合は、上層空気通路の空気と下層空気通路の空気とが混ざらないように、上側羽根の下端部と下側羽根の上端部とを上下方向に離して両者の間に隙間を形成しておく必要がある。しかしながら、このようにすると上側羽根と下側羽根とが上下に連続した構造にならないので、送風用ファンの剛性低下を招き、上側羽根の変形や破断の発生原因となり得る。 Also, in the case of a blower fan for realizing the inside / outside air two-layer flow mode, the lower end of the upper blade and the upper end of the lower blade are not mixed with the air in the upper air passage and the air in the lower air passage. Need to be separated in the vertical direction to form a gap between them. However, since the upper blades and the lower blades do not have a vertically continuous structure in this way, the rigidity of the blower fan is reduced, which may cause deformation and breakage of the upper blades.
　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、内外気２層流モードを実現するための送風用ファンの回転時の安定性を高め、しかも、送風用ファンの剛性を確保できるようにして羽根の変形や破断を未然に防止することにある。 The present invention has been made in view of the above points, and an object of the present invention is to improve the stability during rotation of the blower fan for realizing the inside / outside air two-layer flow mode, and to blow the fan. It is to prevent the blade from being deformed or broken in advance.
　上記目的を達成するために、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第１空気通路及び第２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が収容されたケーシングと、上記ケーシングの内部に配設され、上下方向に長い第１羽根及び第２羽根を有する遠心式送風用ファンと、上下方向に延びるとともに上記送風用ファンを回転駆動する回転軸を有するモーターとを備え、上記送風用ファンの上記第１羽根によって上記第１空気通路内の空気を空調用空気として送風し、上記送風用ファンの上記第２羽根によって上記第２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、上記モーターの上側に上記送風用ファンが配置され、上記送風用ファンは、上記回転軸に固定される被固定部と、該被固定部から該回転軸の径方向に延び、該被固定部側が下に位置するように、下方へ窪むように形成されたコーン部とを備え、上記コーン部の外周部は、上記回転軸の径方向に延びる延出部を有し、上記延出部には、上下方向の一方に突出する縦板部と、該縦板部の突出方向の端部から上記回転軸の径方向に延びる横板部とが設けられ、上記第１羽根及び上記第２羽根の一方の羽根の長手方向の端部が上記横板部に結合され、他方の羽根の長手方向の端部が、上記延出部における上記縦板部の突出方向とは反対側の面に結合されていることを特徴とする。 In order to achieve the above object, the first invention is provided with an inside air introduction port for introducing air inside the vehicle interior and an outside air introduction port for introducing air outside the vehicle compartment, and the inside air introduction port and the outside air introduction port are formed. A first air passage and a second air passage communicating with each other, a casing in which an inside / outside air switching damper for opening and closing the inside air introduction port and the outside air introduction port is housed, and an inside of the casing The blower fan includes: a centrifugal blower fan having a first blade and a second blade that are long in the vertical direction; and a motor having a rotating shaft that extends in the vertical direction and rotationally drives the blower fan. The air in the first air passage is blown as air-conditioning air by the first blade, and the air in the second air passage is blown as air-conditioning air by the second blade of the blower fan. In the vehicle air-conditioning blower configured as described above, the blower fan is disposed on the upper side of the motor, and the blower fan is fixed to the rotating shaft, and the fixed part is fixed to the fixed part. A cone portion that extends in the radial direction of the rotating shaft and is recessed downward so that the fixed portion side is positioned below, and the outer peripheral portion of the cone portion extends in the radial direction of the rotating shaft. The extending portion includes a vertical plate portion protruding in one of the vertical directions, and a horizontal plate portion extending in the radial direction of the rotating shaft from the protruding end portion of the vertical plate portion. The longitudinal end of one of the first and second blades is coupled to the horizontal plate, and the longitudinal end of the other blade is the vertical plate in the extension. It is characterized by being coupled to the surface opposite to the protruding direction.
　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、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第１羽根及び第２羽根によって第１空気通路及び第２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、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第１空気通路及び第２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、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第１空気通路及び第２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。つまり、外気導入モードと、内気循環モードと、内外気２層流モードとのうち、任意のモードに切り替えて送風することができる。 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, when the blower fan rotates, the inside air introduced from the inside air introduction port flows through the first air passage and the second air passage by the first blade and the second blade and is blown as air-conditioning air. . 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 blower fan rotates, so that outside air introduced from the outside air introduction port flows through the first air passage and the second air passage and is blown as air-conditioning air. Furthermore, when the inside air introduction port and the outside air introduction port are opened by the operation of the inside / outside air switching damper, the inside / outside air two-layer flow mode is set, and the blower fan rotates so that the outside air introduced from the outside air introduction port is the first air. The inside air introduced from the inside air introduction port flows through one of the passage and the second air passage, and flows through the other to be blown as air for air conditioning. That is, the air can be blown by switching to any mode among the outside air introduction mode, the inside air circulation mode, and the inside / outside air two-layer flow mode.
　この発明では、送風用ファンのコーン部が、その被固定部側が下に位置するように、下方へ窪む形状とされているので、モーターの回転軸が短くなり、送風用ファンの回転時の安定性が高まる。 In this invention, since the cone part of the blower fan is shaped to be depressed downward so that the fixed part side is positioned below, the rotation axis of the motor is shortened, and the blower fan is rotated. Increased stability.
　そして、コーン部の延出部には上下方向に突出する縦板部と、縦板部の端部から径方向に延びる横板部とが設けられているので、コーン部が縦板部と横板部とによって補強されることになる。この補強された部分に、第１羽根及び第２羽根の端部が結合されることになるので、送風用ファンの剛性低下が抑制される。 The extended portion of the cone portion is provided with a vertical plate portion protruding in the vertical direction and a horizontal plate portion extending in the radial direction from the end portion of the vertical plate portion. It will be reinforced by the plate part. Since the end portions of the first blade and the second blade are coupled to the reinforced portion, a reduction in rigidity of the blower fan is suppressed.
　また、第１羽根及び第２羽根の一方の羽根を横板部に結合させ、他方の羽根を延出部に結合させるようにしたので、第１羽根と第２羽根とが上下方向に離れることになり、第１羽根と第２羽根との間に隙間が形成される。これにより、第１空気通路の空気と第２空気通路の空気とが混ざりにくくなる。 In addition, since one of the first blade and the second blade is coupled to the horizontal plate portion and the other blade is coupled to the extending portion, the first blade and the second blade are separated in the vertical direction. Thus, a gap is formed between the first blade and the second blade. This makes it difficult for the air in the first air passage and the air in the second air passage to mix.
　第２の発明は、第１の発明において、上記縦板部は、上記延出部から下方へ突出し、上記横板部は、上記縦板部の下端部から上記回転軸の径方向に延び、上記第１羽根は、下端部が上記延出部の上面に結合されて上方へ延びるように形成され、上記第２羽根は、上端部が上記横板部の下面に結合されて下方へ延びるように形成されていることを特徴とする。 In a second aspect based on the first aspect, the vertical plate portion protrudes downward from the extending portion, and the horizontal plate portion extends in a radial direction of the rotary shaft from a lower end portion of the vertical plate portion, The first blade is formed such that a lower end portion is coupled to the upper surface of the extending portion and extends upward, and the second blade is configured such that the upper end portion is coupled to the lower surface of the horizontal plate portion and extends downward. It is characterized by being formed.
　この構成によれば、横板部が延出部の下方に離れて位置し、延出部に第１羽根を結合し、横板部に第２羽根を結合するようにしたので、第１羽根と第２羽根との間に隙間を形成することができる。 According to this configuration, the horizontal plate portion is located below the extension portion, the first blade is coupled to the extension portion, and the second blade is coupled to the horizontal plate portion. A gap can be formed between the first blade and the second blade.
　第３の発明は、第１の発明において、上記縦板部は、上記延出部から上方へ突出し、上記横板部は、上記縦板部の上端部から上記回転軸の径方向に延び、上記第１羽根は、下端部が上記横板部の上面に結合されて上方へ延びるように形成され、上記第２羽根は、上端部が上記延出部の下面に結合されて下方へ延びるように形成されていることを特徴とする。 According to a third invention, in the first invention, the vertical plate portion protrudes upward from the extension portion, and the horizontal plate portion extends in a radial direction of the rotary shaft from an upper end portion of the vertical plate portion, The first blade is formed such that a lower end portion is coupled to the upper surface of the horizontal plate portion and extends upward, and the second blade is configured such that an upper end portion is coupled to the lower surface of the extension portion and extends downward. It is characterized by being formed.
　この構成によれば、横板部が延出部の上方に離れて位置し、横板部に第１羽根を結合し、延出部に第２羽根を結合するようにしたので、第１羽根と第２羽根との間に隙間を形成することができる。 According to this configuration, the horizontal plate portion is located above the extension portion, the first blade is coupled to the horizontal plate portion, and the second blade is coupled to the extension portion. A gap can be formed between the first blade and the second blade.
　第４の発明は、第２の発明において、上記縦板部は、上記延出部における上記第１羽根の径方向内端部が結合された部位から突出していることを特徴とする。 The fourth invention is characterized in that, in the second invention, the vertical plate portion protrudes from a portion where the radially inner end portion of the first blade in the extending portion is coupled.
　この構成によれば、延出部における第１羽根の径方向内端部が結合された部位近傍は、第１羽根の結合によって剛性が高まっており、この剛性の高い部分から縦板部を突出させることで、剛性が更に向上する。 According to this configuration, the vicinity of the portion where the radially inner end portion of the first blade in the extension portion is coupled has increased rigidity due to the coupling of the first blade, and the vertical plate portion protrudes from the highly rigid portion. By doing so, the rigidity is further improved.
　第５の発明は、第２の発明において、上記縦板部は、上記延出部における上記第１羽根の径方向中間部が結合された部位から突出していることを特徴とする。 The fifth invention is characterized in that, in the second invention, the vertical plate portion protrudes from a portion where the radial intermediate portion of the first blade in the extending portion is coupled.
　この構成によれば、延出部における第１羽根の径方向中間部が結合された部位近傍は、第１羽根の結合によって剛性が高まっており、この剛性の高い部分から縦板部を突出させることで、剛性が更に向上する。 According to this configuration, the vicinity of the portion where the radial intermediate portion of the first blade in the extension portion is coupled is increased in rigidity by the coupling of the first blade, and the vertical plate portion is protruded from the highly rigid portion. As a result, the rigidity is further improved.
　第６の発明は、第１の発明において、上記送風用ファンは樹脂材によって一体成形されており、上記横板部、上記延出部及び上記縦板部によって上記回転軸の径方向外方に開放する空間が形成されていることを特徴とする。 According to a sixth invention, in the first invention, the blower fan is integrally formed of a resin material, and the horizontal plate portion, the extending portion, and the vertical plate portion are arranged radially outward of the rotary shaft. An open space is formed.
　この構成によれば、横板部、延出部及び縦板部によって形成される空間が径方向外方に開放されるので、送風用ファンの成形時の型構造の複雑化が回避される。 According to this configuration, since the space formed by the horizontal plate portion, the extending portion, and the vertical plate portion is opened outward in the radial direction, complication of the mold structure during molding of the blower fan is avoided.
　第７の発明は、第１の発明において、上記ケーシングの内部には、該ケーシングの内部を上記第１空気通路と上記第２空気通路とに仕切るための仕切板が配設され、該仕切板には、上記送風用ファンを上記第１空気通路と上記第２空気通路の一方から他方へ向けて挿入する貫通孔が形成され、上記貫通孔の周縁部の高さは、上記延出部及び上記横板部の上下方向中間部の高さと一致していることを特徴とする。 In a seventh aspect based on the first aspect, a partition plate for partitioning the interior of the casing into the first air passage and the second air passage is disposed in the casing, and the partition plate Is formed with a through-hole into which the blower fan is inserted from one of the first air passage and the second air passage toward the other, and the height of the peripheral edge of the through-hole is the extension portion and It is the same as the height of the intermediate portion in the vertical direction of the horizontal plate portion.
　この構成によれば、仕切板の貫通孔の周縁部の高さと、送風用ファンの延出部及び横板部の上下方向中間部の高さとが一致するので、第１空気通路の空気と第２空気通路の空気とがより一層混ざりにくくなる。 According to this configuration, the height of the peripheral portion of the through hole of the partition plate and the height of the extending portion of the blower fan and the intermediate portion in the vertical direction of the horizontal plate portion coincide with each other. The air in the two air passages becomes even more difficult to mix.
　第８の発明は、第１の発明において、上記横板部は、上記回転軸の径方向外方へ延び、上記横板部における上記回転軸の径方向外端部は、上記延出部における上記回転軸の径方向外端部よりも外方まで延びていることを特徴とする。 In an eighth aspect based on the first aspect, the horizontal plate portion extends radially outward of the rotary shaft, and a radial outer end portion of the rotary shaft in the horizontal plate portion is in the extended portion. The rotating shaft extends outward from the radially outer end of the rotating shaft.
　この構成によれば、横板部の外端部が延出部の外端部よりも外方に位置することになるので、この横板部に結合する羽根と、延出部に結合する羽根との径方向の位置を変えることが可能になる。 According to this configuration, since the outer end portion of the horizontal plate portion is positioned outward from the outer end portion of the extension portion, the blades coupled to the horizontal plate portion and the blades coupled to the extension portion It is possible to change the position in the radial direction.
　第９の発明は、第１の発明において、上記被固定部は、上記コーン部の内側へ突出するように設けられ、上記コーン部の内側には、上記被固定部の外周面に接続され、径方向に延びるリブが設けられていることを特徴とする。 In a ninth aspect based on the first aspect, the fixed portion is provided so as to protrude to the inside of the cone portion, and the inner side of the cone portion is connected to an outer peripheral surface of the fixed portion, A rib extending in the radial direction is provided.
　この構成によれば、リブによってコーン部の径方向内側が補強されることになる。 According to this configuration, the radially inner side of the cone portion is reinforced by the rib.
　第１の発明によれば、下方へ窪むように形成されたコーン部とすることで、モーターの回転軸を短くして送風用ファンの回転時の安定性を高めることができる。またコーン部の外周部の延出部に縦板部と横板部とを設け、第１羽根及び第２羽根の一方の羽根の端部を横板部に結合し、他方の羽根の長手方向の端部を、延出部における縦板部の突出方向とは反対側の面に結合したので、送風用ファンの剛性を確保することができ、羽根の変形や破断を未然に防止することができる。 According to the first invention, by using the cone portion formed so as to be recessed downward, the rotation shaft of the motor can be shortened and the stability during rotation of the blower fan can be increased. Further, a vertical plate portion and a horizontal plate portion are provided in the extending portion of the outer peripheral portion of the cone portion, and the end portion of one of the first blade and the second blade is coupled to the horizontal plate portion, and the longitudinal direction of the other blade Since the end portion of the fan is coupled to the surface of the extending portion opposite to the protruding direction of the vertical plate portion, the rigidity of the blower fan can be secured, and the blades can be prevented from being deformed or broken. it can.
　第２の発明によれば、横板部が延出部の下方に離れて位置し、延出部に第１羽根を結合し、横板部に第２羽根を結合するようにしたので、第１羽根と第２羽根との間に隙間を形成することができる。 According to the second invention, since the horizontal plate portion is located below the extension portion, the first blade is coupled to the extension portion, and the second blade is coupled to the horizontal plate portion. A gap can be formed between the first blade and the second blade.
　第３の発明によれば、横板部が延出部の上方に離れて位置し、横板部に第１羽根を結合し、延出部に第２羽根を結合するようにしたので、第１羽根と第２羽根との間に隙間を形成することができる。 According to the third invention, the horizontal plate portion is located above the extension portion, the first blade is connected to the horizontal plate portion, and the second blade is connected to the extension portion. A gap can be formed between the first blade and the second blade.
　第４の発明によれば、延出部における第１羽根の径方向内端部が結合された部位近傍は、第１羽根の結合によって剛性が高まっており、この剛性の高い部分から縦板部を突出させることで、剛性を更に向上させて羽根の変形や破断を未然に防止することができる。 According to the fourth aspect of the present invention, the vicinity of the portion where the radially inner end of the first blade in the extending portion is coupled is increased in rigidity by the coupling of the first blade, and the vertical plate portion extends from this highly rigid portion. By projecting, the rigidity can be further improved to prevent the blade from being deformed or broken.
　第５の発明によれば、延出部における第１羽根の径方向中間部が結合された部位近傍は、第１羽根の結合によって剛性が高まっており、この剛性の高い部分から縦板部を突出させることで、剛性を更に向上させて羽根の変形や破断を未然に防止することができる。 According to the fifth invention, the vicinity of the portion where the radial intermediate portion of the first blade in the extension portion is coupled is increased in rigidity by the coupling of the first blade, and the vertical plate portion is moved from the highly rigid portion. By projecting, the rigidity can be further improved to prevent the blades from being deformed or broken.
　第６の発明によれば、横板部、延出部及び縦板部によって形成される空間が径方向外方に開放されるので、送風用ファンの成形時の型構造の複雑化を回避することができ、コストを低減できる。 According to the sixth invention, since the space formed by the horizontal plate portion, the extending portion, and the vertical plate portion is opened outward in the radial direction, it is possible to avoid complication of the mold structure when forming the blower fan. And cost can be reduced.
　第７の発明によれば、仕切板の貫通孔の周縁部の高さと、送風用ファンの延出部及び横板部の上下方向中間部の高さとが一致するので、第１空気通路の空気と第２空気通路の空気とがより一層混ざりにくくなり、送風量を十分に確保することができる。 According to the seventh aspect, since the height of the peripheral edge portion of the through hole of the partition plate and the height of the extending portion of the blower fan and the intermediate portion in the vertical direction of the horizontal plate portion coincide with each other, the air in the first air passage And the air in the second air passage are less likely to be mixed, and a sufficient amount of air can be secured.
　第８の発明によれば、横板部に結合する羽根と、延出部に結合する羽根との径方向の位置を容易に変えることができる。 According to the eighth aspect, the radial positions of the blades coupled to the horizontal plate portion and the blades coupled to the extending portion can be easily changed.
　第９の発明によれば、被固定部の外周面に接続されて径方向に延びるリブを設けたことで、コーン部の径方向内側も補強することができ、送風用ファンの剛性を全体的に高めることができる。 According to the ninth aspect, by providing the rib that is connected to the outer peripheral surface of the fixed portion and extends in the radial direction, the radial inner side of the cone portion can be reinforced, and the rigidity of the blower fan is improved overall. Can be increased.
本発明の実施形態に係る車両空調用送風装置の背面図である。It is a rear view of the air blower for vehicle air conditioning which concerns on embodiment of this invention. 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底面図である。It is a bottom view of the air blower for vehicle air conditioning. 図１におけるIV－IV線断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 1. 送風用ファンの平面図である。It is a top view of the fan for ventilation. 図５におけるVI－VI線断面図である。FIG. 6 is a sectional view taken along line VI-VI in FIG. 5. 実施形態の変形例１に係る図６相当図である。FIG. 7 is a view corresponding to FIG. 6 according to Modification 1 of the embodiment. 実施形態の変形例２に係る図６相当図である。FIG. 7 is a diagram corresponding to FIG. 6 according to Modification 2 of the embodiment. 実施形態の変形例３に係る図６相当図である。FIG. 7 is a view corresponding to FIG. 6 according to Modification 3 of the embodiment. 実施形態の変形例４に係る図５相当図である。FIG. 6 is a view corresponding to FIG. 5 according to Modification 4 of the embodiment. 実施形態の変形例４に係る図６相当図である。FIG. 6 is a view corresponding to FIG. 6 according to Modification 4 of the embodiment. 実施形態の変形例４に係る送風用ファンの底面図である。It is a bottom view of the fan for ventilation concerning modification 4 of an embodiment. 図１３Ａは、図１１のＡ部拡大図であり、図１３Ｂは、変形例５に係る図１３Ａ相当図であり、図１３Ｃは、変形例６に係る図１３Ａ相当図である。13A is an enlarged view of a part A in FIG. 11, FIG. 13B is a view corresponding to FIG. 13A according to the modification 5, and FIG. 13C is a view corresponding to FIG. 13A according to the modification 6. 実施形態の変形例７に係る図１２相当図である。FIG. 13 is a diagram corresponding to FIG. 12 according to Modification 7 of the embodiment. 実施形態の変形例８に係る図１２相当図である。FIG. 13 is a view corresponding to FIG. 12 according to Modification 8 of the embodiment.
　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.
　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を車両後側から見た図であり、また図２は車両空調用送風装置１を左側から見た図であり、また図３は車両空調用送風装置１を下方から見た図である。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及び冷凍サイクル装置と共に車両用空調装置を構成している。 1 is a view of a vehicle air-conditioning blower 1 according to an embodiment of the present invention as seen from the rear side of the vehicle, FIG. 2 is a view of the vehicle air-conditioning blower 1 as seen from the left side, and FIG. It is the figure which looked at the air blower 1 for vehicle air conditioning from the downward direction. 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-conditioner together with an air conditioning unit and a refrigeration cycle device (not shown).
　空調ユニットは、例えば冷凍サイクルの蒸発器からなる冷却用熱交換器と、ヒータコアからなる加熱用熱交換器と、エアミックスダンパと、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。空調風の温度調整は、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行われる。 The air conditioning unit includes, for example, a cooling heat exchanger composed of an evaporator of a refrigeration cycle, a heating heat exchanger composed of a heater core, an air mix damper, a blowing direction switching damper, and an air conditioning casing that accommodates these. Yes. 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. The temperature of the conditioned air is adjusted 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、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、実際の使用状態や設置状態、組付状態を限定するものではない。 In this embodiment, 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”. This is only defined for convenience of explanation, and does not limit the actual use state, installation state, and assembly state.
　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、車両空調用送風装置１が車両の右側に配置される場合について説明するが、車両の左側に配置される場合には、この実施形態の構造と左右対称にすればよいので、詳細な説明は省略する。 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, the case where the vehicle air-conditioning blower 1 is arranged on the right side of the vehicle will be described. Detailed description is omitted.
　（車両の構成）
　この車両空調用送風装置１が配設される車両は、図示しないが、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 on 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の構成）
　図４にも示すように、車両空調用送風装置１は、送風ケーシング２と、送風用ファン３と、送風用ファン３を回転駆動するためのモーター５と、第１内外気切替ダンパ６と、第２内外気切替ダンパ７と、エアフィルタ８と、内外気切替用アクチュエータ９（図１及び図２に示す）とを備えている。送風用ファン３と、第１内外気切替ダンパ６及び第２内外気切替ダンパ７と、エアフィルタ８とは、送風ケーシング２に収容されている。 (Configuration of vehicle air conditioner blower)
As shown in FIG. 4, the vehicle air conditioning blower 1 includes a blower casing 2, a blower fan 3, a motor 5 for rotationally driving the blower fan 3, a first inside / outside air switching damper 6, A second inside / outside air switching damper 7, an air filter 8, and an inside / outside air switching actuator 9 (shown in FIGS. 1 and 2) are provided. The blower fan 3, the first inside / outside air switching damper 6, the second inside / outside air switching damper 7, and the air filter 8 are accommodated in the blowing casing 2.
　送風ケーシング２の上側には、図２等に示す前部内気導入口２ａ及び後部内気導入口２ｂと、図４に示す外気導入口２ｃとが形成されている。図２に示すように、前部内気導入口２ａは、送風ケーシング２の上側における前後方向中央部よりも前寄りの部位に形成されており、車室内に開口している。また、後部内気導入口２ｂは、送風ケーシング２の上側における前後方向中央部よりも後寄りの部位に形成されており、車室内に開口している。前部内気導入口２ａ及び後部内気導入口２から車室内の空気（内気）を送風ケーシング２の内部に導入することが可能になっている。 The front inside air introduction port 2a and the rear inside air introduction port 2b shown in FIG. 2 and the outside air introduction port 2c shown in FIG. 4 are formed on the upper side of the blower casing 2. As shown in FIG. 2, the front inside air introduction port 2 a is formed at a position closer to the front than the central portion in the front-rear direction on the upper side of the blower casing 2, and opens into the vehicle interior. Further, the rear inside air introduction port 2b is formed at a position closer to the rear than the central portion in the front-rear direction on the upper side of the blower casing 2, and opens into the vehicle interior. Air in the vehicle compartment (inside air) can be introduced into the blower casing 2 from the front inside air introduction port 2 a and the rear inside air introduction port 2.
　図４に示すように、送風ケーシング２の上側には、外気導入ダクト部２ｄが前部内気導入口２ａ及び後部内気導入口２ｂの間の部分から上方へ膨出するように該送風ケーシング２に一体成形されている。外気導入ダクト部２ｄの上側は前に向けて延びている。この外気導入ダクト部２ｄの前端部に外気導入口２ｃが開口している。外気導入ダクト部２ｄは上記カウルと接続されており、外気導入口２ｃはカウルを介して車室外と連通している。外気導入口２ｃから車室外の空気（外気）を送風ケーシング２の内部に導入することが可能になっている。 As shown in FIG. 4, on the upper side of the blower casing 2, an outside air introduction duct portion 2 d is formed in the blower casing 2 so as to bulge upward from a portion between the front inside air introduction port 2 a and the rear inside air introduction port 2 b. It is integrally molded. The upper side of the outside air introduction duct portion 2d extends forward. An outside air introduction port 2c is opened at the front end of the outside air introduction duct portion 2d. The outside air introduction duct portion 2d is connected to the cowl, and the outside air introduction port 2c communicates with the outside of the vehicle compartment via the cowl. Air outside the passenger compartment (outside air) can be introduced into the blower casing 2 from the outside air inlet 2c.
　図４に示すように、送風ケーシング２の内部における前部内気導入口２ａ及び後部内気導入口２ｂと外気導入口２ｃよりも下側には、上記フィルタ８が収容されている。フィルタ８は、板状に形成されており、水平方向に延びるように配置されている。フィルタ８の周縁部が送風ケーシング２の内部に設けられたフィルタ支持部２ｅによって支持されている。送風ケーシング２の後壁部には、上記フィルタ８を該送風ケーシング２に挿入するためのフィルタ挿入孔２ｆが形成されている。フィルタ挿入孔２ｆは、フィルタ８の後端部に設けられた蓋部８ａによって閉塞されるようになっている。尚、フィルタ８は、例えば一般的な不織布等で構成することができる。 As shown in FIG. 4, the filter 8 is accommodated below the front inside air introduction port 2a, the rear inside air introduction port 2b, and the outside air introduction port 2c inside the blower casing 2. The filter 8 is formed in a plate shape and is disposed so as to extend in the horizontal direction. The peripheral portion of the filter 8 is supported by a filter support portion 2 e provided inside the blower casing 2. A filter insertion hole 2 f for inserting the filter 8 into the blower casing 2 is formed in the rear wall portion of the blower casing 2. The filter insertion hole 2 f is closed by a lid portion 8 a provided at the rear end portion of the filter 8. In addition, the filter 8 can be comprised with a general nonwoven fabric etc., for example.
　送風ケーシング２の内部におけるフィルタ８よりも上側には、区画壁部２ｇが設けられている。区画壁部２ｇは、上下方向に延びており、下端部に近づけば近づくほど後に位置するように若干傾斜している。送風ケーシング２の内部の上側には、区画壁部２ｇよりも前側に第１空気通路Ｒ１が形成され、区画壁部２ｇよりも後側に第２空気通路Ｒ２が形成されている。第１空気通路Ｒ１の前後方向の幅は、第２空気通路Ｒ２の前後方向の幅よりも広く設定されており、第１空気通路Ｒ１の断面積が第２空気通路Ｒ２の断面積よりも広くなっている。 A partition wall 2g is provided above the filter 8 inside the blower casing 2. The partition wall 2g extends in the vertical direction, and is slightly inclined so as to be positioned closer to the lower end. A first air passage R1 is formed at the front side of the partition wall portion 2g, and a second air passage R2 is formed at the rear side of the partition wall portion 2g. The width in the front-rear direction of the first air passage R1 is set wider than the width in the front-rear direction of the second air passage R2, and the cross-sectional area of the first air passage R1 is wider than the cross-sectional area of the second air passage R2. It has become.
　第１空気通路Ｒ１の上流端部（上端部）は、前部内気導入口２ａと外気導入口２ｃとに連通している。また、第２空気通路Ｒ２の上流端部（上端部）は、後部内気導入口２ｂと外気導入口２ｃとに連通している。第１空気通路Ｒ１及び第２空気通路Ｒ２は、共通の外気導入口２ｃに連通しているが、内気導入口については互いに別の内気導入口２ａ、２ｂに連通している。これにより、第１空気通路Ｒ１及び第２空気通路Ｒ２の両方に、内気と外気との導入が可能な構造になる。 The upstream end (upper end) of the first air passage R1 communicates with the front inside air inlet 2a and the outside air inlet 2c. The upstream end (upper end) of the second air passage R2 communicates with the rear inside air introduction port 2b and the outside air introduction port 2c. The first air passage R1 and the second air passage R2 communicate with a common outside air introduction port 2c, but the inside air introduction port communicates with different inside air introduction ports 2a and 2b. Thereby, it becomes a structure which can introduce | transduce internal air and external air into both 1st air path R1 and 2nd air path R2.
　第１内外気切替ダンパ６は、送風ケーシング２の内部において区画壁部２ｇよりも前側に配設されており、閉塞板部６ａと軸部６ｂと端板部６ｃとを備えている。閉塞板部６ａは、左右方向に延びている。軸部６ｂも左右方向に延びており、送風ケーシング２の左右両側壁部に対して回動可能に支持されている。端板部６ｃは、軸部６ｂの左右方向の両端近傍に設けられている。端板部６ｃは、軸部６ｂから径方向に延び、閉塞板部６ａの左右両端部に連なっている。閉塞板部６ａと軸部６ｂと端板部６ｃは一体成形されている。第１内外気切替ダンパ６は、軸部６ｂの中心線周りに回動することにより、図４に示す前に向けて回動した状態と、図示しないが後に向けて回動した状態とに切り替えられる。第１内外気切替ダンパ６が前に向けて回動した状態になると、前部内気導入口２ａを閉塞して外気導入口２ｃを開放するので、内気の流入が遮断されて外気が第１空気通路Ｒ１の上流部に導入される。一方、第１内外気切替ダンパ６が後に向けて回動した状態になると、前部内気導入口２ａを開放して外気導入口２ｃを閉塞するので、外気の流入が遮断されて内気が第１空気通路Ｒ１の上流部に導入される。 The first inside / outside air switching damper 6 is disposed in front of the partition wall portion 2g inside the blower casing 2, and includes a closing plate portion 6a, a shaft portion 6b, and an end plate portion 6c. The blocking plate portion 6a extends in the left-right direction. The shaft portion 6b also extends in the left-right direction, and is supported so as to be rotatable with respect to the left and right side walls of the blower casing 2. The end plate portion 6c is provided in the vicinity of both ends in the left-right direction of the shaft portion 6b. The end plate portion 6c extends in the radial direction from the shaft portion 6b and continues to both left and right end portions of the closing plate portion 6a. The closing plate portion 6a, the shaft portion 6b, and the end plate portion 6c are integrally formed. The first inside / outside air switching damper 6 is rotated around the center line of the shaft portion 6b, thereby switching between a state rotated toward the front as shown in FIG. 4 and a state rotated toward the rear although not shown. It is done. When the first inside / outside air switching damper 6 is rotated forward, the front inside air introduction port 2a is closed and the outside air introduction port 2c is opened, so that the inflow of inside air is blocked and the outside air is the first air. It is introduced upstream of the passage R1. On the other hand, when the first inside / outside air switching damper 6 is rotated backward, the front inside air introduction port 2a is opened and the outside air introduction port 2c is closed, so that the flow of outside air is blocked and the inside air is the first. It is introduced upstream of the air passage R1.
　第２内外気切替ダンパ７は、送風ケーシング２の内部において区画壁部２ｇよりも後側に配設されており、第１内外気切替ダンパ６と同様に、閉塞板部７ａと軸部７ｂと端板部７ｃとを備えている。第２内外気切替ダンパ７は、軸部７ｂの中心線周りに回動することにより、図４に示す後に向けて回動した状態と、図示しないが前に向けて回動した状態とに切り替えられる。第２内外気切替ダンパ７が後に向けて回動した状態になると、後部内気導入口２ｂを閉塞して外気導入口２ｃを開放するので、内気の流入が遮断されて外気が第２空気通路Ｒ２の上流部に導入される。一方、第２内外気切替ダンパ７が前に向けて回動した状態になると、後部内気導入口２ｂを開放して外気導入口２ｃを閉塞するので、外気の流入が遮断されて内気が第２空気通路Ｒ２の上流部に導入される。 The second inside / outside air switching damper 7 is disposed on the rear side of the partition wall 2g inside the blower casing 2, and similarly to the first inside / outside air switching damper 6, the closing plate portion 7a, the shaft portion 7b, And an end plate portion 7c. The second inside / outside air switching damper 7 is rotated around the center line of the shaft portion 7b to switch between a state where the second inside / outside air switching damper 7 is rotated backward as shown in FIG. It is done. When the second inside / outside air switching damper 7 is rotated backward, the rear inside air introduction port 2b is closed and the outside air introduction port 2c is opened, so that the inflow of the inside air is blocked and the outside air flows into the second air passage R2. It is introduced in the upstream part. On the other hand, when the second inside / outside air switching damper 7 is rotated forward, the rear inside air introduction port 2b is opened and the outside air introduction port 2c is closed, so that the inflow of outside air is blocked and the inside air is second. It is introduced upstream of the air passage R2.
　第１内外気切替ダンパ６及び第２内外気切替ダンパ７は、図１及び図２等に示す内外気切替用アクチュエータ９によって駆動される。内外気切替用アクチュエータ９は、図示しないが、空調制御装置によって制御される。第１内外気切替ダンパ６の軸部６ｂ及び第２内外気切替ダンパ７の軸部７ｂには、リンク部材９ａが係合しており、このリンク部材９ａを内外気切替用アクチュエータ９によって回動させることにより、第１内外気切替ダンパ６及び第２内外気切替ダンパ７を連動させることができるようになっている。リンク部材９ａを用いた第１内外気切替ダンパ６及び第２内外気切替ダンパ７の連動構造については従来から周知の手法を利用することができるので、詳細な説明は省略する。また、リンク部材９ａを用いることなく、第１内外気切替ダンパ６及び第２内外気切替ダンパ７を別々に駆動するようにしてもよい。 The first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 are driven by an inside / outside air switching actuator 9 shown in FIGS. Although not shown, the inside / outside air switching actuator 9 is controlled by an air conditioning control device. A link member 9 a is engaged with the shaft portion 6 b of the first inside / outside air switching damper 6 and the shaft portion 7 b of the second inside / outside air switching damper 7, and the link member 9 a is rotated by the inside / outside air switching actuator 9. By doing so, the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 can be interlocked. Since a well-known technique can be used for the interlocking structure of the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 using the link member 9a, detailed description thereof is omitted. Alternatively, the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 may be driven separately without using the link member 9a.
　この実施形態では、第１内外気切替ダンパ６及び第２内外気切替ダンパ７を以下のように駆動する。すなわち、図４に示すように、第１内外気切替ダンパ６を前に向けて回動させるとともに第２内外気切替ダンパ７を後に向けて回動させる外気導入モードと、第１内外気切替ダンパ６を後に向けて回動させるとともに第２内外気切替ダンパ７を前に向けて回動させる内気循環モードと、第１内外気切替ダンパ６を前に向けて回動させるとともに第２内外気切替ダンパ７を前に向けて回動させる内外気２層流モードとの３つのモードのうち、任意のモードに切り替えることができるようになっている。 In this embodiment, the first inside / outside air switching damper 6 and the second inside / outside air switching damper 7 are driven as follows. That is, as shown in FIG. 4, the outside air introduction mode in which the first inside / outside air switching damper 6 is rotated forward and the second inside / outside air switching damper 7 is rotated backward, and the first inside / outside air switching damper. The internal air circulation mode in which the second internal / external air switching damper 7 is rotated forward and the first internal / external air switching damper 6 is rotated forward and the second internal / external air switching is performed. Of the three modes, the inside / outside air two-layer flow mode in which the damper 7 is rotated forward, the mode can be switched to an arbitrary mode.
　外気導入モードでは、第１内外気切替ダンパ６が前に向けて回動するとともに第２内外気切替ダンパ７が後に向けて回動するので、第１空気通路Ｒ１及び第２空気通路Ｒ２には外気のみが導入される。内気循環モードでは、第１内外気切替ダンパ６が後に向けて回動するとともに第２内外気切替ダンパ７が前に向けて回動するので、第１空気通路Ｒ１及び第２空気通路Ｒ２には内気のみが導入される。内外気２層流モードでは、第１内外気切替ダンパ６が前に向けて回動するとともに第２内外気切替ダンパ７が前に向けて回動するので、第１空気通路Ｒ１には外気が導入され、第２空気通路Ｒ２には内気が導入される。内外気２層流モードは、暖房時に使用されるモードである。 In the outside air introduction mode, since the first inside / outside air switching damper 6 is rotated forward and the second inside / outside air switching damper 7 is rotated backward, the first air passage R1 and the second air passage R2 Only outside air is introduced. In the inside air circulation mode, since the first inside / outside air switching damper 6 rotates backward and the second inside / outside air switching damper 7 rotates forward, the first air passage R1 and the second air passage R2 Only shyness is introduced. In the internal / external air two-layer flow mode, the first internal / external air switching damper 6 rotates forward and the second internal / external air switching damper 7 rotates forward, so that the external air is in the first air passage R1. The inside air is introduced into the second air passage R2. The inside / outside air two-layer flow mode is a mode used during heating.
　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。 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.
　送風ケーシング２の内気導入口２ａ、２ｂ及び外気導入口２ｃよりも下側には、送風用ファン３が収容されるスクロールケーシング２０が設けられている。図１及び図２に示すように、スクロールケーシング２０は、送風用ファン３における上側羽根（第１羽根）３０が設けられた部分が収容される上側スクロールケーシング２１と、送風用ファン３における下側羽根（第２羽根）３１が設けられた部分が収容される下側スクロールケーシング２２とに分割されている。上側スクロールケーシング２１の下部と下側スクロールケーシング２２の上部とが嵌合することによって上側スクロールケーシング２１と下側スクロールケーシング２２とが一体化するようになっている。上側羽根３０及び下側羽根３１はブレードと呼ぶこともできる。 A scroll casing 20 in which the blower fan 3 is accommodated is provided below the inside air inlets 2a, 2b and the outside air inlet 2c of the blower casing 2. As shown in FIGS. 1 and 2, the scroll casing 20 includes an upper scroll casing 21 in which a portion provided with the upper blades (first blades) 30 in the blower fan 3 is housed, and a lower side in the blower fan 3. It is divided into a lower scroll casing 22 in which a portion provided with blades (second blades) 31 is accommodated. By fitting the lower part of the upper scroll casing 21 and the upper part of the lower scroll casing 22, the upper scroll casing 21 and the lower scroll casing 22 are integrated. The upper blade 30 and the lower blade 31 can also be called blades.
　また、スクロールケーシング２０の下部には、底壁部材２３が設けられている。底壁部材２３は、スクロールケーシング２０を構成する部材である。上側スクロールケーシング２１、下側スクロールケーシング２２及び底壁部材２３によってスクロールケーシング２０が構成されている。さらに、スクロールケーシング２０の内部には、該スクロールケーシング２０の内部を上下方向に仕切る仕切板２４が配設されており、この仕切板２４もスクロールケーシング２０を構成する部材である。 Also, a bottom wall member 23 is provided at the bottom of the scroll casing 20. The bottom wall member 23 is a member constituting the scroll casing 20. The scroll casing 20 is constituted by the upper scroll casing 21, the lower scroll casing 22 and the bottom wall member 23. Further, a partition plate 24 for partitioning the inside of the scroll casing 20 in the vertical direction is disposed inside the scroll casing 20, and this partition plate 24 is also a member constituting the scroll casing 20.
　上側スクロールケーシング２１の上壁部には、送風ケーシング２の内部で開口するように、略円形の第１ベルマウス開口部２１ａが形成されている。第１ベルマウス開口部２１ａは、フィルタ８の下面と対向するように配置されており、第１空気通路Ｒ１と連通している。さらに、上側スクロールケーシング２１の上壁部には、上方へ突出する突出壁部２１ｂが設けられている。この突出壁部２１ｂは、第１ベルマウス開口部２１ａの開口縁部よりも後に位置付けられており、左右方向に延びている。突出壁部２１ｂの上端部は、区画壁部２ｇの下端部近傍に達している。突出壁部２１ｂ及び区画壁部２ｇにより、送風ケーシング２の内部における上側スクロールケーシング２１よりも上側が、前後方向に仕切られて、突出壁部２１ｂ及び区画壁部２ｇよりも前側に第１空気通路Ｒ１が形成され、突出壁部２１ｂ及び区画壁部２ｇよりも後側に第２空気通路Ｒ２が形成されることになる。 A substantially circular first bell mouth opening 21 a is formed in the upper wall portion of the upper scroll casing 21 so as to open inside the blower casing 2. The first bell mouth opening 21a is disposed so as to face the lower surface of the filter 8, and communicates with the first air passage R1. Furthermore, a protruding wall portion 21 b that protrudes upward is provided on the upper wall portion of the upper scroll casing 21. The protruding wall 21b is positioned behind the opening edge of the first bell mouth opening 21a and extends in the left-right direction. The upper end portion of the protruding wall portion 21b reaches the vicinity of the lower end portion of the partition wall portion 2g. The upper side of the upper scroll casing 21 inside the blower casing 2 is partitioned in the front-rear direction by the protruding wall portion 21b and the partition wall portion 2g, and the first air passage is located in front of the protruding wall portion 21b and the partition wall portion 2g. R1 is formed, and the second air passage R2 is formed behind the protruding wall portion 21b and the partition wall portion 2g.
　第１空気通路Ｒ１は、第１ベルマウス開口部２１ａを介して上側スクロールケーシング２１の内部と連通しており、この上側スクロールケーシング２１の内部は第１空気通路Ｒ１の一部となっている。仕切板２４よりも上方が第１空気通路Ｒ１とされている。送風用ファン３における上側羽根３０が設けられた部分は、上側スクロールケーシング２１の内部において第１空気通路Ｒ１に配置されている。第１送風用ファン３が上側スクロールケーシング２１の内部で回転すると、送風用ファン３における上側羽根３０が設けられた部分によって第１空気通路Ｒ１内の空気が空調用空気として送風される。つまり、送風用ファン３における上側羽根３０が設けられた部分は、上層において空気の流れを形成する部分である。 The first air passage R1 communicates with the inside of the upper scroll casing 21 through the first bell mouth opening 21a, and the inside of the upper scroll casing 21 is a part of the first air passage R1. A portion above the partition plate 24 is a first air passage R1. A portion of the blower fan 3 where the upper blades 30 are provided is disposed in the first air passage R <b> 1 inside the upper scroll casing 21. When the first blower fan 3 rotates inside the upper scroll casing 21, the air in the first air passage R1 is blown as air-conditioning air by the portion of the blower fan 3 where the upper blades 30 are provided. That is, the portion of the blower fan 3 where the upper blades 30 are provided is a portion that forms an air flow in the upper layer.
　図４に示すように、仕切板２４には、送風用ファン３を第２空気通路Ｒ２から第１空気通路Ｒ１へ向けて挿入する貫通孔２４ａが形成されている。図６にも示すように、貫通孔２４ａの周縁部の高さは、後述する送風用ファン３の延出部３４ｆ及び横板部３８の上下方向中間部の高さと一致している。 As shown in FIG. 4, the partition plate 24 is formed with a through hole 24a into which the blower fan 3 is inserted from the second air passage R2 toward the first air passage R1. As shown in FIG. 6, the height of the peripheral portion of the through hole 24a is coincident with the height of the extending portion 34f of the blower fan 3 and the intermediate portion in the vertical direction of the horizontal plate portion 38 described later.
　図２に示すように、上側スクロールケーシング２１の左側壁部の前側には、上記空調ユニットに接続される上側空気吹出口２１ｃが形成されている。上側空気吹出口２１ｃには、第１空気通路Ｒ１の下流端が連通しており、第１空気通路Ｒ１内の空気は上側空気吹出口２１ｃから上側スクロールケーシング２１の外部に吹き出すようになっている。 As shown in FIG. 2, an upper air outlet 21 c connected to the air conditioning unit is formed on the front side of the left side wall portion of the upper scroll casing 21. The downstream end of the first air passage R1 communicates with the upper air outlet 21c, and the air in the first air passage R1 is blown out of the upper scroll casing 21 from the upper air outlet 21c. .
　図４に示すように、第２空気通路Ｒ２は、上側スクロールケーシング２１の内部の後側を下方へ向けて延びており、第２空気通路Ｒ２の下端部は底壁部材２３に達している。下側スクロールケーシング２２の下壁部は底壁部材２３から上方に離れており、下側スクロールケーシング２２の下壁部と底壁部材２３との間に、第２空気通路Ｒ２の下端部が位置している。下側スクロールケーシング２２の下壁部には、略円形の第２ベルマウス開口部２２ａが形成されたベルマウス構成部材２２ｂが設けられている。第２ベルマウス開口部２２ａは底壁部材２３と対向するように配置されており、第２空気通路Ｒ２の下端部と連通している。第２ベルマウス開口部２２ａと第１ベルマウス開口部２１ａとは同心上に位置している。ベルマウス構成部材２２ｂは、下側スクロールケーシング２２の下壁部に形成された開口部２２ｃの周縁部に嵌合するようになっている。 As shown in FIG. 4, the second air passage R <b> 2 extends downward in the rear side of the upper scroll casing 21, and the lower end of the second air passage R <b> 2 reaches the bottom wall member 23. The lower wall portion of the lower scroll casing 22 is spaced upward from the bottom wall member 23, and the lower end portion of the second air passage R2 is located between the lower wall portion of the lower scroll casing 22 and the bottom wall member 23. is doing. On the lower wall portion of the lower scroll casing 22, a bell mouth constituent member 22b having a substantially circular second bell mouth opening 22a is provided. The second bell mouth opening 22a is disposed to face the bottom wall member 23 and communicates with the lower end of the second air passage R2. The second bell mouth opening 22a and the first bell mouth opening 21a are located concentrically. The bell mouth constituent member 22 b is adapted to be fitted to the peripheral edge portion of the opening 22 c formed in the lower wall portion of the lower scroll casing 22.
　第２空気通路Ｒ２の下端部は、第２ベルマウス開口部２２ａを介して下側スクロールケーシング２２の内部と連通しており、この下側スクロールケーシング２２の内部は第２空気通路Ｒ２の一部となっている。仕切板２４よりも下方が第２空気通路Ｒ２とされている。送風用ファン３における下側羽根３１が設けられた部分は、下側スクロールケーシング２２の内部において第２空気通路Ｒ２に配置されている。送風用ファン３が回転すると、送風用ファン３における下側羽根３１が設けられた部分によって第２空気通路Ｒ２内の空気が空調用空気として送風される。つまり、送風用ファン３における下側羽根３１が設けられた部分は、下層において空気の流れを形成する部分である。 The lower end of the second air passage R2 communicates with the inside of the lower scroll casing 22 via the second bell mouth opening 22a, and the inside of the lower scroll casing 22 is a part of the second air passage R2. It has become. A portion below the partition plate 24 is a second air passage R2. The portion of the blower fan 3 where the lower blades 31 are provided is disposed in the second air passage R <b> 2 inside the lower scroll casing 22. When the blower fan 3 rotates, the air in the second air passage R2 is blown as air-conditioning air by the portion of the blower fan 3 where the lower blades 31 are provided. That is, the portion of the blower fan 3 where the lower blade 31 is provided is a portion that forms an air flow in the lower layer.
　図２に示すように、下側スクロールケーシング２２の左側壁部の前側には、上記空調ユニットに接続される下側空気吹出口２２ｃが形成されている。下側空気吹出口２２ｃは、上側空気吹出口２１ｃの真下に位置している。下側空気吹出口２２ｃには、第２空気通路Ｒ２の下流端が連通しており、第２空気通路Ｒ２内の空気は下側空気吹出口２２ｃから下側スクロールケーシング２２の外部に吹き出すようになっている。 As shown in FIG. 2, a lower air outlet 22 c connected to the air conditioning unit is formed on the front side of the left side wall portion of the lower scroll casing 22. The lower air outlet 22c is located directly below the upper air outlet 21c. The downstream end of the second air passage R2 communicates with the lower air outlet 22c, and the air in the second air passage R2 is blown out of the lower scroll casing 22 from the lower air outlet 22c. It has become.
　底壁部材２３は、下側スクロールケーシング２２の下端部を覆うように形成され、該下端部を覆うカバー状の部材である。底壁部材２３の周縁部は、下側スクロールケーシング２２の下端部の周縁部に嵌合するように形成されており、底壁部材２３の周縁部と、下側スクロールケーシング２２の下端部の周縁部との間から空気が漏れないようになっている。 The bottom wall member 23 is a cover-like member that is formed so as to cover the lower end portion of the lower scroll casing 22 and covers the lower end portion. The peripheral edge portion of the bottom wall member 23 is formed so as to be fitted to the peripheral edge portion of the lower end portion of the lower scroll casing 22, and the peripheral edge portion of the bottom wall member 23 and the lower end portion of the lower scroll casing 22. Air is prevented from leaking between the parts.
　底壁部材２３には、モーター５がモーター取付部材５ａを介して取り付けられている。このモーター５の上側に送風用ファン３が配置されている。モーター取付部材５ａは、底壁部材２３に固定されている。このモーター取付部材５ａにモーター５が取り付けられている。モーター５は、ローター等を内蔵した本体部５ｂと、上下方向に延びる回転軸５ｃと、本体部５ｂを上方から覆うカバー部５ｄとを備えている。回転軸５ｃは、本体部５ｂの上端部から上方へ突出し、カバー部５ｄを貫通し、更に該カバー部５ｄから上方へ突出するように設けられており、第１ベルマウス開口部２１ａ及び第２ベルマウス開口部２２ａと同心上に配置されている。回転軸５ｃの上端部は、第２ベルマウス開口部２２ａよりも上方に位置している。 The motor 5 is attached to the bottom wall member 23 via a motor attachment member 5a. A blower fan 3 is disposed above the motor 5. The motor attachment member 5 a is fixed to the bottom wall member 23. The motor 5 is attached to the motor attachment member 5a. The motor 5 includes a main body 5b incorporating a rotor and the like, a rotary shaft 5c extending in the vertical direction, and a cover 5d that covers the main body 5b from above. The rotating shaft 5c protrudes upward from the upper end portion of the main body 5b, passes through the cover 5d, and further protrudes upward from the cover 5d. The first bell mouth opening 21a and the second It is arranged concentrically with the bell mouth opening 22a. The upper end portion of the rotating shaft 5c is located above the second bell mouth opening 22a.
　カバー部５ｄには、回転軸５ｃの周囲を囲む筒状部５ｅが設けられている。筒状部５ｅは円筒状に形成することができ、回転軸５ｃと同心状に配置される。筒状部５ｅの代わりに、複数の円弧状の壁部を設けてもよい。回転軸５ｃは、筒状部５ｅの上端部よりも上方へ突出している。 The cover portion 5d is provided with a cylindrical portion 5e surrounding the rotating shaft 5c. The cylindrical part 5e can be formed in a cylindrical shape and is arranged concentrically with the rotating shaft 5c. A plurality of arc-shaped wall portions may be provided instead of the cylindrical portion 5e. The rotating shaft 5c protrudes upward from the upper end portion of the cylindrical portion 5e.
　回転軸５ｃには、送風用ファン３が固定されており、送風用ファン３と回転軸５ｃとは一体に回転するようになっている。したがって、モーター５の本体部５ｂに電圧が印加されると、回転軸５ｃの回転力が送風用ファン３に伝達され、送風用ファン３における上側羽根３０が設けられた部分が第１空気通路Ｒ１内で回転し、送風用ファン３における下側羽根３１が設けられた部分が第２空気通路Ｒ２内で回転する。モーター５の本体部５ｂには、図示しない空調制御装置が接続されており、空調制御装置によって所望の回転数となるように電圧が印加される。 The blower fan 3 is fixed to the rotary shaft 5c, and the blower fan 3 and the rotary shaft 5c rotate integrally. Therefore, when a voltage is applied to the main body 5b of the motor 5, the rotational force of the rotating shaft 5c is transmitted to the blower fan 3, and the portion of the blower fan 3 where the upper blades 30 are provided is the first air passage R1. The portion provided with the lower blade 31 in the blower fan 3 rotates in the second air passage R2. An air conditioning control device (not shown) is connected to the main body 5b of the motor 5, and a voltage is applied by the air conditioning control device so as to achieve a desired rotation speed.
　（送風用ファン３の構成）
　図５及び図６に示すように、送風用ファン３は、モーター５の回転軸５ｃに固定される被固定部３３と、該被固定部３３から該回転軸５ｃの径方向に延びるコーン部３４と、該コーン部３４の径方向外側に固定された多数の上側羽根３０及び下側羽根３１とを備えている。上側羽根３０及び下側羽根３１は上下方向に長い形状とされている。被固定部３３、コーン部３４、上側羽根３０及び下側羽根３１は、樹脂材からなる一体成形品とすることができるが、別部材を組み合わせて構成することもできる。送風用ファン３は、遠心式ファンである。 (Configuration of the blower fan 3)
As shown in FIGS. 5 and 6, the blower fan 3 includes a fixed portion 33 fixed to the rotating shaft 5 c of the motor 5, and a cone portion 34 extending from the fixed portion 33 in the radial direction of the rotating shaft 5 c. And a large number of upper blades 30 and lower blades 31 fixed to the outside of the cone portion 34 in the radial direction. The upper blade 30 and the lower blade 31 are long in the vertical direction. The fixed portion 33, the cone portion 34, the upper blade 30 and the lower blade 31 can be formed as an integrally molded product made of a resin material, but can also be configured by combining different members. The blower fan 3 is a centrifugal fan.
　被固定部３３は、モーター５の回転軸５ｃが挿入される挿入孔３３ａを有する筒状に形成されている。被固定部３３の上側部分は、コーン部３４の内周部３４ｂの上面から上方へ突出しており、従って被固定部３３の上側部分がコーン部３４の内側へ突出するように位置することになる。被固定部３３の挿入孔３３ａは上下方向に延びており、該挿入孔３３ａの上端部及び下端部は共に開放されている。モーター５の回転軸５ｃは、挿入孔３３ａに挿入された状態で固定される。被固定部３３をモーター５の回転軸５ｃに固定する手段は従来から周囲であるので詳細な説明は省略する。 The fixed portion 33 is formed in a cylindrical shape having an insertion hole 33a into which the rotating shaft 5c of the motor 5 is inserted. The upper part of the fixed part 33 protrudes upward from the upper surface of the inner peripheral part 34 b of the cone part 34, and therefore the upper part of the fixed part 33 is positioned so as to protrude inside the cone part 34. . The insertion hole 33a of the fixed portion 33 extends in the vertical direction, and both the upper end and the lower end of the insertion hole 33a are open. The rotating shaft 5c of the motor 5 is fixed in a state of being inserted into the insertion hole 33a. Since the means for fixing the fixed portion 33 to the rotating shaft 5c of the motor 5 is conventionally the periphery, detailed description thereof will be omitted.
　コーン部３４は、被固定部３３側が外周側に比べて下に位置するように、下方へ窪むように形成されている。すなわち、コーン部３４は、外周部３４ａと、内周部３４ｂとを有しており、外周部３４ａと内周部３４ｂとは一体成形されている。内周部３４ｂは、被固定部３３の外周面の上下方向中間部から径方向外方へ延びている。内周部３４ｂは、径方向外端部へ近づけば近づくほど下に位置するように傾斜ないし湾曲形成することができる。外周部３４ａは、内周部３４ｂの径方向外端部から上方へ延び、上端部へ近づけば近づくほど径方向外側に位置するように傾斜ないし湾曲形成されている。これら外周部３４ａ及び内周部３４ｂの形状は一例であり、外周部３４ａと内周部３４ｂとが滑らかに連続した形状であってもよいし、外周部３４ａと内周部３４ｂとの境界部分が明確に分かるように連続した形状であってもよい。 The cone part 34 is formed so as to be depressed downward so that the fixed part 33 side is positioned below the outer peripheral side. That is, the cone part 34 has the outer peripheral part 34a and the inner peripheral part 34b, and the outer peripheral part 34a and the inner peripheral part 34b are integrally molded. The inner peripheral portion 34 b extends radially outward from the intermediate portion in the vertical direction of the outer peripheral surface of the fixed portion 33. The inner peripheral portion 34b can be inclined or curved so as to be positioned closer to the radially outer end portion. The outer peripheral portion 34a extends upward from the radially outer end portion of the inner peripheral portion 34b, and is inclined or curved so that the closer to the upper end portion, the closer to the radially outer side. The shapes of the outer peripheral portion 34a and the inner peripheral portion 34b are merely examples, and the outer peripheral portion 34a and the inner peripheral portion 34b may be smoothly continuous, or the boundary portion between the outer peripheral portion 34a and the inner peripheral portion 34b. It may be a continuous shape so that can be clearly seen.
　外周部３４ａ及び内周部３４ｂにより、コーン部３４の形状が下方へ窪むような形状になり、例えば椀型、凹型とも呼ぶことが可能な形状になる。またコーン部３４の外周部３４ａの上端部は、径方向外方へ向けて延出した延出部３４ｆを有している。この延出部３４ｆは、モーター５の回転軸５ｃと交差する方向に延びており、この実施形態では、回転軸５ｃの径方向外側へ行くほど上に位置するように湾曲ないし傾斜している。また、外周部３４ａの下端部は、コーン部３４の最も低い部位となる。 The outer peripheral portion 34a and the inner peripheral portion 34b make the shape of the cone portion 34 recessed downward, for example, a shape that can also be called a bowl shape or a concave shape. Moreover, the upper end part of the outer peripheral part 34a of the cone part 34 has the extension part 34f extended toward radial direction outward. The extending portion 34f extends in a direction intersecting the rotating shaft 5c of the motor 5, and in this embodiment, the extending portion 34f is curved or inclined so as to be located upward as it goes outward in the radial direction of the rotating shaft 5c. Further, the lower end portion of the outer peripheral portion 34 a is the lowest portion of the cone portion 34.
　上側羽根３０の下端部は、コーン部３４の外周部３４ａの延出部３４ｆの上面に結合されており、上側羽根３０は、延出部３４ｆの上面から上方へ延びるように設けられている。送風用ファン３が回転すると、上側羽根３０の上方から空気が吸い込まれて、周方向に隣合う上側羽根３０の間から径方向に吹き出す。 The lower end portion of the upper blade 30 is coupled to the upper surface of the extending portion 34f of the outer peripheral portion 34a of the cone portion 34, and the upper blade 30 is provided so as to extend upward from the upper surface of the extending portion 34f. When the blower fan 3 rotates, air is sucked from above the upper blades 30 and blown out radially between the upper blades 30 adjacent in the circumferential direction.
　また外周部３４ａの延出部３４ｆには、縦板部３７及び横板部３８が設けられている。縦板部３７は、延出部３４ｆの下面から下方へ突出するとともに、モーター５の回転軸５ｃと同心の円環状に形成されている。横板部３８は、縦板部３７の下端部から回転軸５ｃの径方向外方へ延びている。横板部３８における回転軸５ｃの径方向外端部は、延出部３４ｆにおける回転軸５ｃの径方向外端部よりも外方まで延びている。 Further, a vertical plate portion 37 and a horizontal plate portion 38 are provided on the extending portion 34f of the outer peripheral portion 34a. The vertical plate portion 37 protrudes downward from the lower surface of the extension portion 34 f and is formed in an annular shape concentric with the rotation shaft 5 c of the motor 5. The horizontal plate portion 38 extends outward from the lower end portion of the vertical plate portion 37 in the radial direction of the rotating shaft 5c. The radially outer end portion of the rotating shaft 5c in the horizontal plate portion 38 extends further outward than the radially outer end portion of the rotating shaft 5c in the extending portion 34f.
　横板部３８の下面に、下側羽根３１の上端部が結合されており、下側羽根３１は下方へ延びるように形成されている。横板部３８、延出部３４ｆ及び縦板部３７によって回転軸５ｃの径方向外方に開放する空間が形成されている。送風用ファン３が回転すると、下側羽根３１の下方から空気が吸い込まれて、周方向に隣合う下側羽根３１の間から径方向に吹き出す。 The upper end of the lower blade 31 is joined to the lower surface of the horizontal plate portion 38, and the lower blade 31 is formed to extend downward. A space that opens outward in the radial direction of the rotating shaft 5c is formed by the horizontal plate portion 38, the extending portion 34f, and the vertical plate portion 37. When the blower fan 3 rotates, air is sucked from below the lower blades 31 and blown out radially between the lower blades 31 adjacent in the circumferential direction.
　図５に示すように、コーン部３４の上面には、回動軸５ｃの径方向に延びる複数の第１リブ３５及び第２リブ３６が設けられている。第１リブ３５及び第２リブ３６は、被固定部３３の外周面に接続されるとともに、コーン部３４の外周部３４ａにも接続されている。つまり、第１リブ３５及び第２リブ３６は、被固定部３３の外周面からコーン部３４の外周部３４ａに達するまで径方向に延びる補強用リブであり、被固定部３３と外周部３４ａとを連結する連結リブと呼ぶこともできる。第１リブ３５は、第２リブ３６よりも高くなっており、第１リブ３５の径方向の寸法は、第２リブ３６の径方向の寸法よりも長く設定されている。第１リブ３５及び第２リブ３６の肉厚は等しくすることができるが、互いに厚みを異ならせてもよい。第１リブ３５と第２リブ３６とは回動軸５ｃの周方向に交互に設けられている。第１リブ３５及び第２リブ３６の下端部は、コーン部３４の内周部３４ｂに接続されている。従って、第１リブ３５及び第２リブ３６により、被固定部３３と、コーン部３４の内周部３４ｂと、コーン部３４の外周部３４ａとが連結されて一体化することになる。尚、第１リブ３５及び第２リブ３６の一方または両方を省略してもよい。 As shown in FIG. 5, a plurality of first ribs 35 and second ribs 36 extending in the radial direction of the rotation shaft 5 c are provided on the upper surface of the cone portion 34. The first rib 35 and the second rib 36 are connected to the outer peripheral surface of the fixed portion 33 and are also connected to the outer peripheral portion 34 a of the cone portion 34. That is, the first rib 35 and the second rib 36 are reinforcing ribs extending in the radial direction from the outer peripheral surface of the fixed portion 33 until reaching the outer peripheral portion 34a of the cone portion 34. The fixed portion 33, the outer peripheral portion 34a, Can also be referred to as connecting ribs that connect the two. The first rib 35 is higher than the second rib 36, and the radial dimension of the first rib 35 is set longer than the radial dimension of the second rib 36. Although the thickness of the first rib 35 and the second rib 36 can be equal, the thickness may be different from each other. The first ribs 35 and the second ribs 36 are alternately provided in the circumferential direction of the rotation shaft 5c. The lower ends of the first rib 35 and the second rib 36 are connected to the inner peripheral part 34 b of the cone part 34. Therefore, the fixed portion 33, the inner peripheral portion 34 b of the cone portion 34, and the outer peripheral portion 34 a of the cone portion 34 are connected and integrated by the first rib 35 and the second rib 36. One or both of the first rib 35 and the second rib 36 may be omitted.
　第１リブ３５及び第２リブ３６の上端部は、上側羽根３０の下端部よりも下に位置付けられている。これにより、第１リブ３５及び第２リブ３６が風の流れを阻害しにくくなるので、十分な風量を確保できる。 The upper ends of the first rib 35 and the second rib 36 are positioned below the lower end of the upper blade 30. Thereby, since the 1st rib 35 and the 2nd rib 36 become difficult to inhibit the flow of a wind, sufficient air volume can be ensured.
　また複数の第１リブ３５は回動軸５ｃの周方向に等間隔に配置されている。また複数の第２リブ３６も回動軸５ｃの周方向に等間隔に配置されている。回動軸５ｃの周方向に隣合う第１リブ３５と第２リブ３６との間隔は、全て等しく設定されている。これにより、送風用ファン３の回転時のバランスが良好になる。 The plurality of first ribs 35 are arranged at equal intervals in the circumferential direction of the rotation shaft 5c. The plurality of second ribs 36 are also arranged at equal intervals in the circumferential direction of the rotation shaft 5c. The intervals between the first ribs 35 and the second ribs 36 adjacent to each other in the circumferential direction of the rotation shaft 5c are all set equal. Thereby, the balance at the time of rotation of the fan 3 for ventilation becomes favorable.
　（実施形態の作用効果）
　以上説明したように、この実施形態に係る車両空調用送風装置１によれば、内外気切替ダンパ６、７の動作によって内気導入口２ａ、２ｂを開き、かつ、外気導入口２ｃを閉じると、内気導入口２ａ、２ｂ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、送風用ファン３が回転することで、内気導入口２ａ、２ｂから導入された内気が第１空気通路Ｒ１及び第２空気通路Ｒ２を流れて空調用空気として送風される。 (Effect of embodiment)
As described above, according to the vehicle air-conditioning blower 1 according to this embodiment, when the inside air introduction ports 2a and 2b are opened and the outside air introduction port 2c is closed by the operation of the inside and outside air switching dampers 6 and 7, The inside air circulation mode in which the inside air is introduced from the inside air introduction ports 2a and 2b is set. In the inside air circulation mode, when the blower fan 3 rotates, the inside air introduced from the inside air introduction ports 2a and 2b flows through the first air passage R1 and the second air passage R2 and is blown as air for air conditioning.
　また、内外気切替ダンパ６、７の動作によって内気導入口２ａ、２ｂを閉じ、かつ、外気導入口２ｃを開くと、外気導入口２ｃ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、送風用ファン３が回転することで、外気導入口２ｃから導入された外気が第１空気通路Ｒ１及び第２空気通路Ｒ２を流れて空調用空気として送風される。 Further, when the inside air introduction ports 2a and 2b are closed and the outside air introduction port 2c is opened by the operation of the inside and outside air switching dampers 6 and 7, the outside air introduction mode in which the outside air is introduced from the outside air introduction port 2c is set. In the outside air introduction mode, when the blower fan 3 rotates, the outside air introduced from the outside air introduction port 2c flows through the first air passage R1 and the second air passage R2 and is blown as air-conditioning air.
　さらに、内外気切替ダンパ６、７の動作によって内気導入口２ａ、２ｂ及び外気導入口２ｃを開くと、内外気２層流モードになり、送風用ファン３が回転することで、外気導入口２ｃから導入された外気が第１空気通路Ｒ１を流れ、内気導入口２ａ、２ｂから導入された内気が第２空気通路Ｒ２を流れ、空調用空気として送風される。つまり、この実施形態に係る車両空調用送風装置１によれば、外気導入モードと、内気循環モードと、内外気２層流モードとのうち、任意のモードに切り替えて送風することができる。 Furthermore, when the inside air introduction ports 2a, 2b and the outside air introduction port 2c are opened by the operation of the inside / outside air switching dampers 6, 7, the inside / outside air two-layer flow mode is set, and the blower fan 3 rotates, whereby the outside air introduction port 2c. The outside air introduced from the air flows through the first air passage R1, and the inside air introduced from the inside air introduction ports 2a and 2b flows through the second air passage R2 and is blown as air for air conditioning. That is, according to the vehicle air-conditioning blower 1 according to this embodiment, the air can be blown by switching to any mode among the outside air introduction mode, the inside air circulation mode, and the inside / outside air two-layer flow mode.
　また、この実施形態では、下方へ窪むように形成されたコーン部３４とすることで、モーター５の回転軸５ｃを短くして送風用ファン３の回転時の安定性を高めることができる。またコーン部３４の外周部３４ａの延出部３４ｆに縦板部３７と横板部３８とを設けたので、コーン部３４が縦板部３７と横板部３８とによって補強されることになる。この補強された部分に、上側羽根３０及び下側羽根３１の端部を結合することができるので、送風用ファン３の剛性低下を抑制できる。よって、上側羽根３０及び下側羽根３１の変形や破断を未然に防止することができる。 Further, in this embodiment, by using the cone portion 34 formed so as to be depressed downward, the rotation shaft 5c of the motor 5 can be shortened and the stability during rotation of the blower fan 3 can be enhanced. Further, since the vertical plate portion 37 and the horizontal plate portion 38 are provided on the extending portion 34f of the outer peripheral portion 34a of the cone portion 34, the cone portion 34 is reinforced by the vertical plate portion 37 and the horizontal plate portion 38. . Since the edge part of the upper blade | wing 30 and the lower blade | wing 31 can be couple | bonded with this reinforced part, the rigidity fall of the fan 3 for ventilation can be suppressed. Therefore, the upper blade 30 and the lower blade 31 can be prevented from being deformed or broken.
　また、上側羽根３０及び下側羽根３１を上下方向に離すことができるので、上側羽根３０と下側羽根３１との間に隙間を形成することができる。これにより、第１空気通路Ｒ１の空気と第２空気通路Ｒ２の空気とが混ざりにくくなる。 Further, since the upper blade 30 and the lower blade 31 can be separated in the vertical direction, a gap can be formed between the upper blade 30 and the lower blade 31. This makes it difficult for the air in the first air passage R1 and the air in the second air passage R2 to mix.
　また、コーン部３４の内側の第１リブ３５及び第２リブ３６は径方向に延びるものであることから、下方へ窪む形状のコーン部３４が第１リブ３５及び第２リブ３６によって補強されてコーン部３４の剛性を十分に確保することができる。 Further, since the first rib 35 and the second rib 36 inside the cone portion 34 extend in the radial direction, the cone portion 34 that is recessed downward is reinforced by the first rib 35 and the second rib 36. Thus, the rigidity of the cone portion 34 can be sufficiently secured.
　また、送風用ファン３の横板部３８、延出部３４ｆ及び縦板部３７によって形成される空間が径方向外方に開放されるので、送風用ファン３の成形時の型構造の複雑化を回避することができ、コストを低減できる。 Further, since the space formed by the horizontal plate portion 38, the extending portion 34f and the vertical plate portion 37 of the blower fan 3 is opened radially outward, the mold structure at the time of molding the blower fan 3 is complicated. Can be avoided and the cost can be reduced.
　（その他の実施形態）
　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。 (Other embodiments)
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.
　図７に示す実施形態の変形例１のように、送風用ファン３の延出部３４ｆがモーター５の回転軸５ｃの軸方向と直交する方向に延びる形状であってもよい。また、この変形例１では、縦板部３７が、延出部３４ｆにおける上側羽根３０の径方向内端部が結合された部位から下方へ突出している。すなわち、延出部３４ｆにおける上側羽根３０の径方向内端部が結合された部位近傍は、上側羽根３０の結合によって剛性が高まっており、この剛性の高い部分から縦板部３７を突出させることで、剛性が更に向上する。 As in Modification 1 of the embodiment shown in FIG. 7, the extending portion 34 f of the blower fan 3 may have a shape extending in a direction orthogonal to the axial direction of the rotating shaft 5 c of the motor 5. Moreover, in this modification 1, the vertical board part 37 protrudes below from the site | part with which the radial direction inner end part of the upper side blade | wing 30 in the extension part 34f was couple | bonded. That is, the vicinity of the portion where the radially inner end portion of the upper blade 30 in the extension portion 34f is coupled has increased rigidity due to the coupling of the upper blade 30, and the vertical plate portion 37 protrudes from this highly rigid portion. Thus, the rigidity is further improved.
　図８に示す実施形態の変形例２のように、縦板部３７は、延出部３４ｆにおける上側羽根３０の径方向中間部が結合された部位から下方へ突出していてもよい。すなわち、延出部３４ｆにおける上側羽根３０の径方向中間部が結合された部位近傍は、上側羽根３０の結合によって剛性が高まっており、この剛性の高い部分から縦板部３７を突出させることで、剛性が更に向上する。 As in Modification 2 of the embodiment shown in FIG. 8, the vertical plate portion 37 may protrude downward from a portion where the radial intermediate portion of the upper blade 30 in the extension portion 34 f is coupled. That is, in the vicinity of the portion where the radial direction intermediate portion of the upper blade 30 is coupled in the extended portion 34f, the rigidity is increased by the coupling of the upper blade 30, and the vertical plate portion 37 is protruded from this highly rigid portion. , The rigidity is further improved.
　図９に示す実施形態の変形例３のように、縦板部３７が延出部３４ｆから上方へ突出し、横板部３８は、縦板部３７の上端部から回転軸５ｃの径方向に延びていてもよい。この変形例３では、上側羽根３０の下端部が横板部３８の上面に結合されている。下側羽根３１の上端部は延出部３４ｆの下面に結合されている。 As in Modification 3 of the embodiment shown in FIG. 9, the vertical plate portion 37 protrudes upward from the extending portion 34 f, and the horizontal plate portion 38 extends from the upper end portion of the vertical plate portion 37 in the radial direction of the rotary shaft 5 c. It may be. In the third modification, the lower end portion of the upper blade 30 is coupled to the upper surface of the horizontal plate portion 38. The upper end portion of the lower blade 31 is coupled to the lower surface of the extending portion 34f.
　図１０～図１２に示す実施形態の変形例４のように構成することもできる。すなわち、コーン部３４には、該コーン部３４の上面の水を該コーン部３４の下方へ排水するための排水孔３４ｃが複数設けられている。複数の排水孔３４ｃは、コーン部３４の外周部３４ａの下端部、即ちコーン部３４の最も低い部位に設けられており、互いに回転軸５ｃの周方向に間隔をあけて配置されている。また、コーン部３４の内周部３４ｂは、径方向外端部へ近づけば近づくほど下に位置するように傾斜させることができ、これにより、排水孔３４ｃの下縁部に向けて下降傾斜する形状になるので、内周部３４ｂの上面の水が排水孔３４ｃに向けて流れやすくなる。 It can also be configured as in the fourth modification of the embodiment shown in FIGS. That is, the cone part 34 is provided with a plurality of drain holes 34 c for draining water on the upper surface of the cone part 34 to the lower side of the cone part 34. The plurality of drain holes 34c are provided at the lower end portion of the outer peripheral portion 34a of the cone portion 34, that is, at the lowest portion of the cone portion 34, and are arranged at intervals in the circumferential direction of the rotating shaft 5c. Further, the inner peripheral portion 34b of the cone portion 34 can be inclined so as to be positioned downward as it comes closer to the radially outer end portion, and thereby, it is inclined downward toward the lower edge portion of the drain hole 34c. Since it becomes a shape, the water on the upper surface of the inner peripheral portion 34b can easily flow toward the drain hole 34c.
　これら排水孔３４ｃの間隔は等間隔にすることができる。また排水孔３４ｃは、カバー部５ｄの筒状部５ｅの上端部から上方へ離れ、かつ、該筒状部５ｅよりも径方向外方に位置付けられている。従って、平面視において、筒状部５ｅの外方に排水孔３４ｃが位置することになる。第２リブ３６は、排水孔３４ｃを横切るように配置されている。平面視において、排水孔３４ｃの開口幅の中央部を第２リブ３６が通っており、これにより、１つの排水孔３４ｃを１つの第２リブ３６が跨ぐように配置されることになるので、排水孔３４ｃ開口幅の中央部において２分割されることになる。このように第２リブ３６を配置することで、排水孔３４ｃの開口を非閉塞とする位置に設けることができる。また第１リブ３５は排水孔３４ｃの開口から離れた位置に設けられているので、この第１リブ３５も排水孔３４ｃの開口を非閉塞とする位置に設けられるリブである。 The intervals between the drain holes 34c can be equal. Further, the drain hole 34c is located away from the upper end portion of the cylindrical portion 5e of the cover portion 5d and positioned radially outward from the cylindrical portion 5e. Accordingly, the drain hole 34c is located outside the cylindrical portion 5e in plan view. The second rib 36 is disposed so as to cross the drain hole 34c. In plan view, the second rib 36 passes through the center of the opening width of the drainage hole 34c, and as a result, one drainage hole 34c is disposed across the second rib 36, The drain hole 34c is divided into two at the center of the opening width. By disposing the second rib 36 in this manner, the opening of the drain hole 34c can be provided at a position where it is not closed. Since the first rib 35 is provided at a position away from the opening of the drain hole 34c, the first rib 35 is also a rib provided at a position where the opening of the drain hole 34c is not closed.
　コーン部３４の下面には、排水孔３４ｃにおける回転軸５ｃの径方向内端部から下方へ突出する突出部３４ｄが形成されている。これにより、排水孔３４ｃから下方へ流れる水が突出部３４ｄを伝って流れ易くなる。この突出部３４ｄが、排水孔３４ｃにおける回転軸５ｃの径方向内端部から突出しているので、水が回転軸５ｃに接近する方向には流れにくくなり、このためモーター５への水浸入が抑制される。突出部３４ｄは回転軸５ｃの周方向に延びていて、複数設けられている。また、突出部３４ｄは回転軸５ｃの周方向に等間隔に設けることができる。突出部３４ｄは、回転軸５ｃと同心の円弧状に延びるように形成することもできる。 On the lower surface of the cone portion 34, a protruding portion 34d is formed that protrudes downward from the radially inner end portion of the rotating shaft 5c in the drain hole 34c. As a result, the water flowing downward from the drain hole 34c can easily flow along the protrusion 34d. Since the protruding portion 34d protrudes from the radially inner end of the rotating shaft 5c in the drain hole 34c, it is difficult for water to flow in the direction approaching the rotating shaft 5c, and thus water intrusion into the motor 5 is suppressed. Is done. The protrusion 34d extends in the circumferential direction of the rotating shaft 5c, and a plurality of the protrusions 34d are provided. Further, the protrusions 34d can be provided at equal intervals in the circumferential direction of the rotating shaft 5c. The protrusion 34d can also be formed to extend in an arc shape concentric with the rotation shaft 5c.
　突出部３４ｄは、第１リブ３５及び第２リブ３６の直下方に位置している。突出部３４ｄが周方向に延びているので、コーン部３４における第１リブ３５が形成された部位と、コーン部３４における第２リブ３６が形成された部位とに共通の突出部３４ｄが位置することになる。また、突出部３４ｄと、第１リブ３５及び第２リブ３６とがコーン部３４の厚み方向（上下方向）に重なるように位置することになるので、コーン部３４の剛性がより一層向上する。 The protruding portion 34d is located immediately below the first rib 35 and the second rib 36. Since the projecting portion 34d extends in the circumferential direction, the common projecting portion 34d is located at the portion of the cone portion 34 where the first rib 35 is formed and the portion of the cone portion 34 where the second rib 36 is formed. It will be. In addition, since the protruding portion 34d and the first rib 35 and the second rib 36 are positioned so as to overlap in the thickness direction (vertical direction) of the cone portion 34, the rigidity of the cone portion 34 is further improved.
　図１３Ａに示すように、突出部３４ｄの下端面３４ｅの幅Ｗは、１．０ｍｍ以下にすることができる。これにより、突出部３４ｄを伝って下端面３４ｅまで流れた水が滴下しやすくなる。 As shown in FIG. 13A, the width W of the lower end surface 34e of the protruding portion 34d can be set to 1.0 mm or less. Thereby, the water that has flowed to the lower end surface 34e through the protruding portion 34d can be easily dropped.
　図１３Ｂに示す実施形態の変形例５のように、突出部３４ｄの下端面３４ｅを湾曲面とすることもできる。 As in Modification 5 of the embodiment shown in FIG. 13B, the lower end surface 34e of the protruding portion 34d can be a curved surface.
　図１３Ｃに示す実施形態の変形例６のように、突出部３４ｄの下部は、下方へ向かって尖るように形成することができる。変形例５、６の場合も、突出部３４ｄを伝って流れた水が滴下しやすくなる。 As in Modification 6 of the embodiment shown in FIG. 13C, the lower portion of the protrusion 34d can be formed to be pointed downward. In the case of the modified examples 5 and 6, the water that has flowed through the protruding portion 34d can be easily dropped.
　図１４に示す実施形態の変形例７のように、突出部３４ｄの端部に、径方向外方へ突出する凸部３４ｇを形成してもよい。これにより、水が周方向に隣合う突出部３４ｄの間から径方向内方へ流れるのを抑制することができる。 As in Modification 7 of the embodiment shown in FIG. 14, a protrusion 34g protruding radially outward may be formed at the end of the protrusion 34d. Thereby, it can suppress that water flows radially inward from between the protrusion parts 34d adjacent to the circumferential direction.
　図１５に示す実施形態の変形例８のように、突出部３４ｄを回転軸５ｃの周方向に連続する環状にすることもできる。 15, the protruding portion 34d can be formed in an annular shape that is continuous in the circumferential direction of the rotating shaft 5c, as in Modification 8 of the embodiment shown in FIG.
　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
２　　　　　　　　送風ケーシング
２ａ、２ｂ　　　　内気導入口
２ｃ　　　　　　　外気導入口
３　　　　　　　　送風用ファン
５　　　　　　　　モーター
５ｂ　　　　　　　本体部
５ｃ　　　　　　　回転軸
５ｄ　　　　　　　カバー部
５ｅ　　　　　　筒状部
２０　　　　　　　スクロールケーシング
３０　　　　　　　上側羽根（第１羽根）
３１　　　　　　　下側羽根（第２羽根）
３３　　　　　　　被固定部
３４　　　　　　　コーン部
３４ｃ　　　　　　排水孔
３４ｄ　　　　　　突出部
３５　　　　　　　第１リブ
３６　　　　　　　第２リブ
Ｒ１　　　　　　　第１空気通路
Ｒ２　　　　　　　第２空気通路 DESCRIPTION OF SYMBOLS 1 Vehicle air conditioning blower 2 Blowing casing 2a, 2b Inside air introduction port 2c Outside air introduction port 3 Blower fan 5 Motor 5b Main part 5c Rotating shaft 5d Cover part 5e Cylindrical part 20 Scroll casing 30 Upper blade (first blade)
31 Lower blade (second blade)
33 Fixed portion 34 Cone portion 34c Drain hole 34d Protruding portion 35 First rib 36 Second rib R1 First air passage R2 Second air passage

Claims (9)

  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第１空気通路及び第２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が収容されたケーシングと、
    　上記ケーシングの内部に配設され、上下方向に長い第１羽根及び第２羽根を有する遠心式送風用ファンと、
    　上下方向に延びるとともに上記送風用ファンを回転駆動する回転軸を有するモーターとを備え、
    　上記送風用ファンの上記第１羽根によって上記第１空気通路内の空気を空調用空気として送風し、上記送風用ファンの上記第２羽根によって上記第２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、
    　上記モーターの上側に上記送風用ファンが配置され、
    　上記送風用ファンは、上記回転軸に固定される被固定部と、該被固定部から該回転軸の径方向に延び、該被固定部側が下に位置するように、下方へ窪むように形成されたコーン部とを備え、
    　上記コーン部の外周部は、上記回転軸の径方向に延びる延出部を有し、
    　上記延出部には、上下方向の一方に突出する縦板部と、該縦板部の突出方向の端部から上記回転軸の径方向に延びる横板部とが設けられ、
    　上記第１羽根及び上記第２羽根の一方の羽根の長手方向の端部が上記横板部に結合され、他方の羽根の長手方向の端部が、上記延出部における上記縦板部の突出方向とは反対側の面に結合されていることを特徴とする車両空調用送風装置。     A first air passage and a second air passage, which are formed with an inside air introduction port for introducing air inside the vehicle interior and an outside air introduction port for introducing air outside the vehicle compartment, and communicated with both the inside air introduction port and the outside air introduction port. Formed inside, and a casing in which an inside / outside air switching damper that opens and closes the inside air introduction port and the outside air introduction port is housed, and
    A centrifugal blower fan disposed in the casing and having first and second blades that are long in the vertical direction;
    A motor extending in the vertical direction and having a rotating shaft for rotationally driving the blower fan,
    Air in the first air passage is blown as air-conditioning air by the first blade of the blower fan, and air in the second air passage is blown as air-conditioning air by the second blade of the blower fan. In a vehicle air-conditioning blower configured to:
    The fan for blowing is arranged on the upper side of the motor,
    The blower fan is formed to be fixed to the rotating shaft and to be recessed downward so that the fixed portion extends from the fixed portion in the radial direction of the rotating shaft and the fixed portion side is positioned below. With a cone part,
    The outer peripheral part of the cone part has an extending part extending in the radial direction of the rotating shaft,
    The extension part is provided with a vertical plate part protruding in one of the vertical directions, and a horizontal plate part extending in the radial direction of the rotary shaft from an end part of the vertical plate part in the protruding direction,
    The longitudinal end of one of the first blade and the second blade is coupled to the horizontal plate, and the longitudinal end of the other blade is the protrusion of the vertical plate in the extension. A blower for vehicle air conditioning, wherein the blower is coupled to a surface opposite to the direction.
  2. 　請求項１に記載の車両空調用送風装置において、
    　上記縦板部は、上記延出部から下方へ突出し、
    　上記横板部は、上記縦板部の下端部から上記回転軸の径方向に延び、
    　上記第１羽根は、下端部が上記延出部の上面に結合されて上方へ延びるように形成され、
    　上記第２羽根は、上端部が上記横板部の下面に結合されて下方へ延び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 1,
    The vertical plate portion protrudes downward from the extension portion,
    The horizontal plate portion extends from the lower end portion of the vertical plate portion in the radial direction of the rotating shaft,
    The first blade is formed such that a lower end portion is coupled to an upper surface of the extension portion and extends upward,
    The vehicle air-conditioning blower according to claim 2, wherein the second blade is formed so that an upper end portion thereof is coupled to a lower surface of the horizontal plate portion and extends downward.
  3. 　請求項１に記載の車両空調用送風装置において、
    　上記縦板部は、上記延出部から上方へ突出し、
    　上記横板部は、上記縦板部の上端部から上記回転軸の径方向に延び、
    　上記第１羽根は、下端部が上記横板部の上面に結合されて上方へ延びるように形成され、
    　上記第２羽根は、上端部が上記延出部の下面に結合されて下方へ延び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 1,
    The vertical plate portion protrudes upward from the extension portion,
    The horizontal plate portion extends from the upper end portion of the vertical plate portion in the radial direction of the rotation shaft,
    The first blade is formed such that a lower end portion is coupled to an upper surface of the horizontal plate portion and extends upward,
    The vehicle air-conditioning blower according to claim 2, wherein the second blade is formed such that an upper end portion thereof is coupled to a lower surface of the extension portion and extends downward.
  4. 　請求項２に記載の車両空調用送風装置において、
    　上記縦板部は、上記延出部における上記第１羽根の径方向内端部が結合された部位から突出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 2,
    The blower for vehicle air conditioning, wherein the vertical plate portion protrudes from a portion where the radially inner end portion of the first blade in the extending portion is coupled.
  5. 　請求項２に記載の車両空調用送風装置において、
    　上記縦板部は、上記延出部における上記第１羽根の径方向中間部が結合された部位から突出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 2,
    The blower for vehicle air conditioning, wherein the vertical plate portion protrudes from a portion where the radial intermediate portion of the first blade in the extending portion is coupled.
  6. 　請求項１に記載の車両空調用送風装置において、
    　上記送風用ファンは樹脂材によって一体成形されており、
    　上記横板部、上記延出部及び上記縦板部によって上記回転軸の径方向外方に開放する空間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 blower fan is integrally formed of a resin material,
    The vehicle air conditioner blower characterized in that a space that opens radially outward of the rotating shaft is formed by the horizontal plate portion, the extending portion, and the vertical plate portion.
  7. 　請求項１に記載の車両空調用送風装置において、
    　上記ケーシングの内部には、該ケーシングの内部を上記第１空気通路と上記第２空気通路とに仕切るための仕切板が配設され、該仕切板には、上記送風用ファンを上記第１空気通路と上記第２空気通路の一方から他方へ向けて挿入する貫通孔が形成され、
    　上記貫通孔の周縁部の高さは、上記延出部及び上記横板部の上下方向中間部の高さと一致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,
    A partition plate for partitioning the interior of the casing into the first air passage and the second air passage is disposed in the casing, and the blower fan is connected to the first air in the partition plate. A through hole is formed to be inserted from one of the passage and the second air passage toward the other,
    The height of the peripheral part of the said through-hole corresponds with the height of the up-down direction intermediate part of the said extension part and the said horizontal plate part, The air conditioner for vehicle air conditioning characterized by the above-mentioned.
  8. 　請求項１に記載の車両空調用送風装置において、
    　上記横板部は、上記回転軸の径方向外方へ延び、
    　上記横板部における上記回転軸の径方向外端部は、上記延出部における上記回転軸の径方向外端部よりも外方まで延び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 horizontal plate portion extends radially outward of the rotating shaft,
    An air blower for vehicle air conditioning, wherein a radially outer end portion of the rotating shaft in the horizontal plate portion extends outward from a radially outer end portion of the rotating shaft in the extending portion.
  9. 　請求項１に記載の車両空調用送風装置において、
    　上記被固定部は、上記コーン部の内側へ突出するように設けられ、
    　上記コーン部の内側には、上記被固定部の外周面に接続され、径方向に延びるリブ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 1,
    The fixed part is provided so as to protrude to the inside of the cone part,
    An air blower for vehicle air conditioning, wherein a rib connected to the outer peripheral surface of the fixed portion and extending in the radial direction is provided inside the cone portion.
PCT/JP2019/010656 2018-03-27 2019-03-14 Blower device for air-conditioning of vehicle WO2019188365A1 (en)

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KR102698344B1 (en) * 2020-02-27 2024-08-26 한온시스템 주식회사 Blower unit of two layer type air conditioner for vehicle

Citations (4)

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Publication number Priority date Publication date Assignee Title
JP2001206044A (en) * 1996-06-26 2001-07-31 Denso Corp Air blowing unit
JP2001213134A (en) * 2000-02-01 2001-08-07 Denso Corp Air blowing unit of air conditioner for vehicle
JP2012166658A (en) * 2011-02-14 2012-09-06 Denso Corp Blower unit
JP2017171020A (en) * 2016-03-22 2017-09-28 株式会社日本クライメイトシステムズ Blower for vehicle air conditioning

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017208657A1 (en) * 2016-05-30 2017-12-07 株式会社デンソー Blower unit and method for manufacturing blower unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001206044A (en) * 1996-06-26 2001-07-31 Denso Corp Air blowing unit
JP2001213134A (en) * 2000-02-01 2001-08-07 Denso Corp Air blowing unit of air conditioner for vehicle
JP2012166658A (en) * 2011-02-14 2012-09-06 Denso Corp Blower unit
JP2017171020A (en) * 2016-03-22 2017-09-28 株式会社日本クライメイトシステムズ Blower for vehicle air conditioning

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