WO2023119443A1 - Vehicle air-conditioning device - Google Patents

Vehicle air-conditioning device Download PDF

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Publication number
WO2023119443A1
WO2023119443A1 PCT/JP2021/047405 JP2021047405W WO2023119443A1 WO 2023119443 A1 WO2023119443 A1 WO 2023119443A1 JP 2021047405 W JP2021047405 W JP 2021047405W WO 2023119443 A1 WO2023119443 A1 WO 2023119443A1
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Prior art keywords
air intake
air
outside air
outside
vehicle
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PCT/JP2021/047405
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French (fr)
Japanese (ja)
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弘孝 桜井
梨紗 野村
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サンデン株式会社
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Priority to PCT/JP2021/047405 priority Critical patent/WO2023119443A1/en
Publication of WO2023119443A1 publication Critical patent/WO2023119443A1/en

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

Definitions

  • the present invention relates to a vehicle air conditioner.
  • a centrifugal blower housed in an inside/outside air case is coaxially driven and has a first fan and a second fan having suction ports on both sides of the drive shaft. It is a blower, and the internal/external air case is provided with first and second internal air intakes communicating with respective suction ports on both sides of the drive shaft, and further provided with one external air intake port communicating with each of the respective suction ports.
  • the mode can be switched between the total inside air mode, the total outside air mode, and the two-laminar flow mode.
  • the inside air here refers to the air inside the vehicle compartment
  • the outside air refers to the air outside the vehicle compartment.
  • the first and second inside air intakes are provided facing each other along the drive shaft of the fan, and one outside air intake is provided so as to open upward perpendicular to the drive shaft,
  • a switching door for switching air flow paths is a plate-like door that opens and closes in the space above the fan.
  • the first and second inside air intake ports coaxially with the intake port of the fan. Since the space in the case required for opening and closing expands in the width direction of the vehicle, an installation space in the width direction of the vehicle is required when mounted on the vehicle, and overall space saving cannot be achieved.
  • the object of the present invention is to deal with such circumstances. That is, it is an object of the present invention to reduce the impact on air blowing performance while achieving miniaturization in the vertical direction and vehicle width direction and space saving when mounted.
  • a vehicular air conditioner comprising a centrifugal blower inside, an air intake section having an inside air intake for taking outside air or inside air into an intake of the centrifugal blower and an outside air intake, wherein the drive shaft of the centrifugal blower is intersected.
  • the outside air intake is provided on the front side of the vehicle
  • the inside air intake is provided in the direction along the drive shaft
  • an inside/outside air switching damper for opening and closing the outside air intake and the inside air intake is arranged around the rotation axis. Rotation in one direction closes the outside air intake and opens the inside air intake, and rotation in the other direction around the rotation axis opens the outside air intake and closes the inside air intake.
  • the rotating shafts are arranged above and below a driving portion of the centrifugal blower, and arranged such that a straight line passing through the rotating shaft overlaps with the driving portion.
  • FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, showing an outside air mode.
  • FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, showing a shy mode.
  • FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, showing a two-layer mode;
  • FIG. 4 is a plan view showing the case shape of the intake case and the inside/outside air switching damper; Explanatory drawing which showed the internal structure (ventilation flow path) of the main body case of one side. Explanatory drawing which showed the internal structure (ventilation flow path) of the main body case of the other side.
  • the vehicle air conditioner 1 includes an air intake portion 1A and a temperature control blower portion 1B for a main body case 100.
  • the air intake portion 1A has an outside air intake port 2. and inside air intake ports 3 (3A, 3B) are provided, and the temperature control air blowing section 1B is provided with a first blowing section 4, a second blowing section 5, and a third blowing section 6.
  • the first outlet 4 here is, for example, a defroster outlet
  • the second outlet 5 is, for example, a face outlet
  • the third outlet 6 is, for example, a foot outlet 6A or a rear seat foot outlet. 6B, including the rear seat face outlet 6C.
  • the air intake section 1A has a centrifugal blower 10 inside.
  • the centrifugal blower 10 includes a drive section (motor) 11 and two layers of centrifugal fans 12 and 13 coaxially rotated by the drive section 11 .
  • the suction port 12A of one centrifugal fan 12 and the suction port 13A of the other centrifugal fan 13 are opened in opposite directions along the drive shaft 11A.
  • the air intake portion 1A includes intake cases 20 and 21.
  • the intake cases 20 and 21 are provided so as to cover the pair of suction ports 12A and 13A of the centrifugal fan 10, respectively.
  • An outside air intake port 2 is provided so as to straddle the two intake cases 20 and 21 .
  • the outside air intake 2 is provided so as to open toward the front of the vehicle, and the two inside air intakes 3A and 3B are provided so as to open toward the left and right sides in the width direction of the vehicle.
  • Internal/external air switching dampers 22 and 23 are provided inside the intake cases 20 and 21 provided in the air intake section 1A, respectively.
  • the inside/outside air switching dampers 22 and 23 are rotary dampers, and are provided with rotating shafts 22A and 23A, respectively. 3A and 3B are opened, and by rotating in the other direction around the rotary shafts 22A and 23A, the outside air intake 2 is opened and the inside air intakes 3A and 3B are closed.
  • the internal/external air switching dampers 22 and 23 are in a state in which the shielding portions 22B and 23B of the internal/external air switching dampers 22 and 23 block the internal air intakes 3A and 3B, and the internal air intakes 3A and 3B are closed.
  • the outside air introduction state (external air mode).
  • the inside/outside air switching dampers 22 and 23 block the outside air intake 2 with the shielding portions 22B and 23B of the inside/outside air switching dampers 22 and 23, and the outside air intake 2 is closed. Shielding portions 22B and 23B of inside/outside air switching dampers 22 and 23 are retracted from inside air intake ports 3A and 3B, so that inside air intake ports 3A and 3B are opened and air taken in from inside air intake ports 3A and 3B is removed. The inside air is introduced into the suction ports 12A and 13A (inside air mode).
  • one inside/outside air switching damper 22 closes the outside air intake 2 and opens the inside air intake 3A, and the other inside/outside air switching damper 23 takes in the inside air.
  • a two-layer flow state (two-layer mode) is established in which the inlet 3B is closed and the outside air intake 2 is opened.
  • the inside/outside air switching damper 22 is provided inside the intake case 20 on the side where the drive unit 11 of the centrifugal fan 10 is arranged.
  • the inside/outside air switching damper 22 has its rotary shaft 22A arranged above and below the drive section 11 of the centrifugal fan 10, and is arranged so that a straight line L passing through the rotary shaft 22A overlaps with the drive section 11. It is That is, part of the drive unit 11 of the centrifugal fan 10 is accommodated in the inner space of the inside/outside air switching damper 22 which is a rotary damper.
  • the intake case 20 in which the inside/outside air switching damper 22 is provided is shaped to avoid a tongue portion 101A (see FIGS. 7 and 8) of the scroll housing 101, which will be described later.
  • the rotating shaft 22A of the inside/outside air switching damper 22 is shifted to the front side of the vehicle avoiding the tongue portion 101A. According to this, it becomes easy to secure a space for the mounting structure for mounting the intake case 20 and the inside/outside air switching damper 22 to the main body case 100, and when the main body case 100 is a divided case, the above-described divided case at the tongue portion 101A can be easily secured.
  • the intake case 20 and the inside/outside air switching damper 22 can be attached while avoiding the joint between the two.
  • the inside/outside air switching dampers 22 and 23 are set to have different sizes. That is, of the pair of inside air intakes 3A and 3B, the damper internal volume of the inside/outside air switching damper 22 on the side where the drive unit 11 of the centrifugal fan 10 is provided is equal to that of the inside/outside air switching damper 22 on the side where the drive unit 11 is not provided. It is set wider than the internal volume of the damper at 23 . As a result, even when the drive unit 11 is accommodated in a part of the inner space of the inside/outside air switching damper 22, the flow rate of the air entering the suction ports 12A and 13A through the insides of the inside/outside air switching dampers 22 and 23 is reduced. I try not to make a big difference.
  • each of the intake cases 20 and 21 has an internal space in the sliding range of the inside/outside air switching dampers 22 and 23 provided therein. It is wider than the space inside the case outside.
  • the case shape of the intake cases 20, 21 outside the sliding range of the inside/outside air switching dampers 22, 23 installed inside is made smaller than the case shape of the sliding range, and the case shape is closer to the centrifugal blower 10 side.
  • FIG. 7 and 8 show the internal configuration of the body case 100 that constitutes the air intake portion 1A and the temperature control blower portion 1B of the vehicle air conditioner 1.
  • FIG. The body case 100 has a scroll housing 101 of the centrifugal blower 10 in the air intake portion 1A.
  • the scroll housing 101 forms a flow passage for the air sucked from the suction ports 12A and 13A, and has a tongue portion 101A formed closest to the outer periphery of a centrifugal fan (not shown).
  • the straight line L passing through the rotating shaft 22A of the inside/outside air switching damper 22 on the drive unit 11 side described above is arranged on the front side of the vehicle from the tongue portion 101A of the scroll housing 101 of the centrifugal blower 10, as shown in FIG.
  • the rotary shaft 22A does not interfere with the tongue portion 101A.
  • the height dimension of the inside/outside air switching damper 22 can be set to the necessary minimum while the tongue portion 101A is installed at an appropriate position to ensure the air blowing performance.
  • FIG. 1 Inside the main body case 100, there are a first opening/closing door 4A for opening and closing the first blowout portion 4, a second opening/closing door 5A for opening and closing the second blowout portion 5, and a foot blowout port 6A in the third blowout portion 6 for switching the wind direction.
  • a wind direction switching door 60 is provided.
  • the interior of the main body case 100 is divided into an upper layer portion 111 and a lower layer portion 112 by a two-layer partition portion 110.
  • the upper layer portion 111 is provided with an upper layer air mix door 111A
  • the lower layer portion 112 is provided with a lower layer air mix door. 112A is provided.
  • the scroll housing 101 on the suction port 12A side shown in FIG. 7 communicates with the upper layer portion 111 at the downstream side of the tongue portion 101A, and the scroll housing 101 on the suction port 13A side shown in FIG. The downstream side communicates with the lower layer portion 112 .
  • Air sucked from the suction port 12A passes through the tongue portion 101A of the scroll housing 101 as described above, enters the upper layer portion 111, and passes through the filter 120 and the cooler (cooler core) 121 installed in the main body case 100. After passing through, the air passage is switched by the upper air mix door 111A.
  • the air is blown to the first blowing part 4, the second blowing part 5, or the third blowing part 6 as it is (without passing through the heater (heater core) 122).
  • the air is blown to the first blowing part 4, the second blowing part 5, or the third blowing part 6 via the heater 122.
  • the air sucked from the suction port 13A passes through the tongue portion 101A of the scroll housing 101 as described above, enters the lower layer portion 112, and enters the filter 120 and the cooler installed in the main body case 100. After passing through 121, the air passage is switched by the lower air mix door 112A.
  • the outside air intake 2 is arranged on the vehicle front side, and the inside air intake 3 (3A, 3B) is arranged in the vehicle width direction,
  • the inside air intake 3 3A, 3B
  • the vertical dimension of the vehicle air conditioner 1 can be kept low.
  • the driving portion 11 of the centrifugal blower 10 in the air intake portion 1A is arranged so as to overlap with the straight line L passing through the rotation shaft 22A of the inside/outside air switching damper 22, and a part of the driving portion 11 is placed on the inside/outside air switching damper 22.
  • the air intake portion 1A can be miniaturized in the vehicle width direction.
  • the rotating shaft 22A of the inside/outside air switching damper 22 is arranged above and below the drive unit 11 of the centrifugal fan 10, the height of the inside/outside air switching damper 22 is sufficiently high with respect to the suction port 12A of the centrifugal fan 10. It can be made large, and good suction performance of the centrifugal fan 10 can be ensured.
  • the inside/outside air switching dampers 22 and 23 are provided on the vehicle front side of the tongue portion 101A in the scroll housing 101 of the centrifugal fan 10, the inside/outside air switching dampers 22 and 23 and the centrifugal fan 10 It becomes easy to secure a clearance with the mounting flange of the drive unit 11, and it becomes easy to mount and remove the drive unit 11 while avoiding interference with the inside/outside air switching dampers 22 and 23.
  • 1 vehicle air conditioner, 1A: air intake section, 1B: temperature control blower section, 2: outside air intake, 3 (3A, 3B): inside air intake, 4: first blowout portion, 4A: first opening/closing door, 5: second blowout part, 5A: second opening/closing door, 6: third outlet, 6A: foot outlet, 6B: rear seat face outlet, 6C: rear seat face outlet, 60: wind direction switching door, 10: centrifugal blower, 11: drive unit, 11A: drive shaft, 12, 13 centrifugal fans, 12A, 13A: suction port, 20, 21: intake case, 22, 23: inside/outside air switching damper, 22A, 23A: rotating shafts, 22B, 23B: shielding parts, 100: body case, 101: scroll housing, 101A: tongue, 110: two-layer partition, 111: upper layer, 112: lower layer, 111A: upper air mix door, 112A: lower air mix door, 120: Filter, 121: Cooler, 122: Heater

Abstract

The present invention addresses the problem of minimizing the impact on air blowing performance when endeavoring to reduce both vertical-direction and vehicle width-direction size and conserve space used when installed in a vehicle.　A vehicle air-conditioning device according to the present invention is provided with an air intake part provided internally with a centrifugal blower and having an inside-air intake port and an outside-air intake port through which outside air or inside air is introduced into a inlet port of the centrifugal blower. The outside-air intake port is provided on the vehicle front side intersecting a drive shaft of the centrifugal blower, and the inside-air intake port is provided in a direction along the drive shaft. An inside/outside air switching damper that opens and closes the outside-air intake port and the inside-air intake port is a rotary-type damper that closes the outside-air intake port and opens the inside-air intake port by rotation in one direction centered on a rotation axis, and opens the outside-air intake port and closes the inside-air intake port by rotation in the other direction centered on the rotation axis. The rotation axis is disposed above and below a drive unit of the centrifugal blower and such that a straight line passing through the rotation axis overlaps the driving unit.

Description

車両用空調装置vehicle air conditioner
　本発明は、車両用空調装置に関するものである。 The present invention relates to a vehicle air conditioner.
　従来、２層式の車両用空調装置として、内外気ケース内に収納された送風機が、同軸で駆動されて駆動軸の両側にそれぞれ吸い込み口を有する第１のファンと第２のファンを有する遠心送風機であり、内外気ケースは、駆動軸の両側にそれぞれの吸い込み口に連通する第１、第２の内気取入口が設けられ、更に、それぞれの吸い込み口に連通する１つの外気取入口が設けられ、第１、第２の内気取入口と１つの外気取入口からそれぞれの吸い込み口に連通する送風流路を適宜切り替えることで、全内気モード、全外気モード、２層流モードを切り替えるものが知られている（下記特許文献１参照）。なお、ここでの内気は車室内の空気を指しており、外気は車室外の空気を指している。 Conventionally, as a two-layer vehicle air conditioner, a centrifugal blower housed in an inside/outside air case is coaxially driven and has a first fan and a second fan having suction ports on both sides of the drive shaft. It is a blower, and the internal/external air case is provided with first and second internal air intakes communicating with respective suction ports on both sides of the drive shaft, and further provided with one external air intake port communicating with each of the respective suction ports. By appropriately switching airflow passages communicating from the first and second inside air intake ports and one outside air intake port to the respective suction ports, the mode can be switched between the total inside air mode, the total outside air mode, and the two-laminar flow mode. known (see Patent Document 1 below). Note that the inside air here refers to the air inside the vehicle compartment, and the outside air refers to the air outside the vehicle compartment.
特開２０００－２９６７１２号公報JP-A-2000-296712
　前述した従来技術は、第１、第２の内気取入口がファンの駆動軸に沿って対向して設けられ、１つの外気取入口が駆動軸と直交する上方に開口して設けられており、送風流路を切り替える切り替えドアが板状のドアでありファンの上方空間で開閉動作するようになっている。これによって前述した従来技術は、車載時に上下方向に大きな設置スペースを要することが問題になっている。 In the prior art described above, the first and second inside air intakes are provided facing each other along the drive shaft of the fan, and one outside air intake is provided so as to open upward perpendicular to the drive shaft, A switching door for switching air flow paths is a plate-like door that opens and closes in the space above the fan. As a result, the conventional technology described above has a problem in that it requires a large installation space in the vertical direction when mounted on a vehicle.
　また、車両用空調装置の上下方向の寸法縮小を検討する上で、第１、第２の内気取入口をファンの吸い込み口と同軸上に設けることが考えられるが、それによると、切り替えドアの開閉に要するケース内の空間が車幅方向に広がることになるので、車載時に車幅方向の設置スペースを要することになり、全体的な省スペース化を達成することができない。 Further, in considering the reduction of the size of the vehicle air conditioner in the vertical direction, it is conceivable to provide the first and second inside air intake ports coaxially with the intake port of the fan. Since the space in the case required for opening and closing expands in the width direction of the vehicle, an installation space in the width direction of the vehicle is required when mounted on the vehicle, and overall space saving cannot be achieved.
　本発明は、このような事情に対処することを課題としている。すなわち、上下方向と車幅方向の小型化、車載時の省スペース化を図りながら、送風性能への影響を少なくすること、が本発明の課題である。 The object of the present invention is to deal with such circumstances. That is, it is an object of the present invention to reduce the impact on air blowing performance while achieving miniaturization in the vertical direction and vehicle width direction and space saving when mounted.
　このような課題を解決するために、本発明は、以下の構成を具備するものである。
　内部に遠心送風機を備え、前記遠心送風機の吸い込み口に外気又は内気を取り入れる内気取入口と外気取入口を有する空気取入部を備える車両用空調装置であって、前記遠心送風機の駆動軸に交差する車両前方側に前記外気取入口を設けると共に、前記駆動軸に沿った方向に前記内気取入口を設け、前記外気取入口と前記内気取入口を開閉する内外気切り替えダンパを、回転軸を中心とした一方向への回転で前記外気取入口を閉じて前記内気取入口を開き、前記回転軸を中心とした他方向への回転で前記外気取入口を開いて前記内気取入口を閉じるロータリ式ダンパとし、前記回転軸を前記遠心送風機の駆動部の上下に配置すると共に、前記回転軸を通る直線が前記駆動部に重なるように配置したことを特徴とする車両用空調装置。 In order to solve such problems, the present invention has the following configurations.
A vehicular air conditioner comprising a centrifugal blower inside, an air intake section having an inside air intake for taking outside air or inside air into an intake of the centrifugal blower and an outside air intake, wherein the drive shaft of the centrifugal blower is intersected. The outside air intake is provided on the front side of the vehicle, the inside air intake is provided in the direction along the drive shaft, and an inside/outside air switching damper for opening and closing the outside air intake and the inside air intake is arranged around the rotation axis. Rotation in one direction closes the outside air intake and opens the inside air intake, and rotation in the other direction around the rotation axis opens the outside air intake and closes the inside air intake. and wherein the rotating shafts are arranged above and below a driving portion of the centrifugal blower, and arranged such that a straight line passing through the rotating shaft overlaps with the driving portion.
　このような特徴を有する本発明によると、上下方向と車幅方向の小型化を図りながら、送風性能への影響を少なくすることができる車両用空調装置を提供することができる。 According to the present invention having such characteristics, it is possible to provide a vehicle air conditioner that can reduce the impact on air blowing performance while achieving downsizing in the vertical direction and vehicle width direction.
本発明の実施形態に係る車両用空調装置の全体構成を示した側面図。BRIEF DESCRIPTION OF THE DRAWINGS The side view which showed the whole structure of the vehicle air conditioner which concerns on embodiment of this invention. 図１におけるＡ－Ａ断面図であり、外気モードを示している。FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, showing an outside air mode. 図１におけるＡ－Ａ断面図であり、内気モードを示している。FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, showing a shy mode. 図１におけるＡ－Ａ断面図であり、２層モードを示している。FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, showing a two-layer mode; 内気取入口に対するインテークケースを外した状態を示した側面図。The side view which showed the state which removed the intake case with respect to the inside air intake. インテークケースのケース形状と内外気切り替えダンパを示す平面図。FIG. 4 is a plan view showing the case shape of the intake case and the inside/outside air switching damper; 一方側の本体ケースの内部構造（送風流路）を示した説明図。Explanatory drawing which showed the internal structure (ventilation flow path) of the main body case of one side. 他方側の本体ケースの内部構造（送風流路）を示した説明図。Explanatory drawing which showed the internal structure (ventilation flow path) of the main body case of the other side.
　以下、図面を参照して本発明の実施形態を説明する。以下の説明で、異なる図における同一符号は同一機能の部位を示しており、各図における重複説明は適宜省略する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals in different figures denote portions having the same function, and duplication of description in each figure will be omitted as appropriate.
　図１～図４に示すように、車両用空調装置１は、本体ケース１００に対して、空気取入部１Ａと温調送風部１Ｂを備えており、空気取入部１Ａには、外気取入口２と内気取入口３（３Ａ，３Ｂ）が設けられ、温調送風部１Ｂには、第１吹出部４、第２吹出部５、第３吹出部６が設けられている。ここでの第１吹出部４は、例えばデフロスタ吹出口であり、第２吹出部５は、例えばフェイス吹出口であり、第３吹出部６は、例えばフット吹出口６Ａ、後部座席のフット吹出口６Ｂ、後部座席のフェイス吹出口６Ｃなどを含む。 As shown in FIGS. 1 to 4, the vehicle air conditioner 1 includes an air intake portion 1A and a temperature control blower portion 1B for a main body case 100. The air intake portion 1A has an outside air intake port 2. and inside air intake ports 3 (3A, 3B) are provided, and the temperature control air blowing section 1B is provided with a first blowing section 4, a second blowing section 5, and a third blowing section 6. As shown in FIG. The first outlet 4 here is, for example, a defroster outlet, the second outlet 5 is, for example, a face outlet, and the third outlet 6 is, for example, a foot outlet 6A or a rear seat foot outlet. 6B, including the rear seat face outlet 6C.
　空気取入部１Ａは、遠心送風機１０を内部に備えている。遠心送風機１０は、駆動部（モータ）１１を備えると共に、駆動部１１によって同軸回転する２層の遠心ファン１２，１３を備えている。そして、遠心送風機１０は、１つの遠心ファン１２の吸い込み口１２Ａと他の遠心ファン１３の吸い込み口１３Ａが、それぞれ駆動軸１１Ａに沿って互いに逆向きに開口している。 The air intake section 1A has a centrifugal blower 10 inside. The centrifugal blower 10 includes a drive section (motor) 11 and two layers of centrifugal fans 12 and 13 coaxially rotated by the drive section 11 . In the centrifugal blower 10, the suction port 12A of one centrifugal fan 12 and the suction port 13A of the other centrifugal fan 13 are opened in opposite directions along the drive shaft 11A.
　また、空気取入部１Ａは、インテークケース２０，２１を備えている。このインテークケース２０，２１は、遠心送風機１０における一対の吸い込み口１２Ａ，１３Ａをそれぞれ覆うように設けられており、一方のインテークケース２０には内気取入口３Ａが設けられ、他方のインテークケース２１には内気取入口３Ｂが設けられている。そして、２つのインテークケース２０，２１に跨るように、外気取入口２が設けられている。車載時には、外気取入口２は、車両の前方側に向けて開口するように設けられ、２つの内気取入口３Ａ，３Ｂは、車両の幅方向左右側に向けてそれぞれ開口するように設けられている。 In addition, the air intake portion 1A includes intake cases 20 and 21. The intake cases 20 and 21 are provided so as to cover the pair of suction ports 12A and 13A of the centrifugal fan 10, respectively. is provided with an inside air intake port 3B. An outside air intake port 2 is provided so as to straddle the two intake cases 20 and 21 . When mounted on a vehicle, the outside air intake 2 is provided so as to open toward the front of the vehicle, and the two inside air intakes 3A and 3B are provided so as to open toward the left and right sides in the width direction of the vehicle. there is
　空気取入部１Ａに設けられる各インテークケース２０，２１の内部には、それぞれ内外気切り替えダンパ２２，２３が設けられている。内外気切り替えダンパ２２，２３は、ロータリ式ダンパであって、回転軸２２Ａ，２３Ａをそれぞれ備え、回転軸２２Ａ，２３Ａを中心とした一方向への回転で外気取入口２を閉じて内気取入口３Ａ，３Ｂを開き、回転軸２２Ａ，２３Ａを中心とした他方向への回転で外気取入口２を開いて内気取入口３Ａ，３Ｂを閉じる。 Internal/external air switching dampers 22 and 23 are provided inside the intake cases 20 and 21 provided in the air intake section 1A, respectively. The inside/outside air switching dampers 22 and 23 are rotary dampers, and are provided with rotating shafts 22A and 23A, respectively. 3A and 3B are opened, and by rotating in the other direction around the rotary shafts 22A and 23A, the outside air intake 2 is opened and the inside air intakes 3A and 3B are closed.
　内外気切り替えダンパ２２，２３は、図２に示す状態では、内外気切り替えダンパ２２，２３の遮蔽部２２Ｂ，２３Ｂが内気取入口３Ａ，３Ｂを塞いで、内気取入口３Ａ，３Ｂが閉じた状態になっており、内外気切り替えダンパ２２，２３の内部を通って外気取入口２から取り入れられる空気が吸い込み口１２Ａ，１３Ａに引き込まれることで、外気取入口２が開放される外気導入状態（外気モード）になっている。 In the state shown in FIG. 2, the internal/external air switching dampers 22 and 23 are in a state in which the shielding portions 22B and 23B of the internal/external air switching dampers 22 and 23 block the internal air intakes 3A and 3B, and the internal air intakes 3A and 3B are closed. The outside air introduction state (external air mode).
　また、内外気切り替えダンパ２２，２３は、図３に示す状態では、内外気切り替えダンパ２２，２３の遮蔽部２２Ｂ，２３Ｂが外気取入口２を塞いで、外気取入口２が閉じた状態になっており、内外気切り替えダンパ２２，２３の遮蔽部２２Ｂ，２３Ｂが内気取入口３Ａ，３Ｂから退避することで、内気取入口３Ａ，３Ｂが開放され、内気取入口３Ａ，３Ｂから取り入れられる空気が吸い込み口１２Ａ，１３Ａに引き込まれる内気導入状態（内気モード）になっている。 In the state shown in FIG. 3, the inside/outside air switching dampers 22 and 23 block the outside air intake 2 with the shielding portions 22B and 23B of the inside/outside air switching dampers 22 and 23, and the outside air intake 2 is closed. Shielding portions 22B and 23B of inside/outside air switching dampers 22 and 23 are retracted from inside air intake ports 3A and 3B, so that inside air intake ports 3A and 3B are opened and air taken in from inside air intake ports 3A and 3B is removed. The inside air is introduced into the suction ports 12A and 13A (inside air mode).
　そして、内外気切り替えダンパ２２，２３は、図４に示す状態では、一方の内外気切り替えダンパ２２が外気取入口２を閉じて内気取入口３Ａを開き、他方の内外気切り替えダンパ２３が内気取入口３Ｂを閉じて外気取入口２を開く、２層流状態（２層モード）になっている。 4, one inside/outside air switching damper 22 closes the outside air intake 2 and opens the inside air intake 3A, and the other inside/outside air switching damper 23 takes in the inside air. A two-layer flow state (two-layer mode) is established in which the inlet 3B is closed and the outside air intake 2 is opened.
　ここで、内外気切り替えダンパ２２は、遠心送風機１０の駆動部１１が配備される側のインテークケース２０内に設けられている。この内外気切り替えダンパ２２は、図５に示すように、その回転軸２２Ａを遠心送風機１０の駆動部１１の上下に配置すると共に、回転軸２２Ａを通る直線Ｌが駆動部１１に重なるように配置されている。すなわち、遠心送風機１０の駆動部１１は、その一部がロータリ式ダンパである内外気切り替えダンパ２２の内側空間に収まるようになっている。 Here, the inside/outside air switching damper 22 is provided inside the intake case 20 on the side where the drive unit 11 of the centrifugal fan 10 is arranged. As shown in FIG. 5, the inside/outside air switching damper 22 has its rotary shaft 22A arranged above and below the drive section 11 of the centrifugal fan 10, and is arranged so that a straight line L passing through the rotary shaft 22A overlaps with the drive section 11. It is That is, part of the drive unit 11 of the centrifugal fan 10 is accommodated in the inner space of the inside/outside air switching damper 22 which is a rotary damper.
　この内外気切り替えダンパ２２が内部に設けられるインテークケース２０は、その形状が後述するスクロールハウジング１０１の舌部１０１Ａ（図７及び図８参照）を避ける形状になっている。そして、内外気切り替えダンパ２２の回転軸２２Ａは、その舌部１０１Ａを避けて車両前側にシフトしている。これによると、本体ケース１００にインテークケース２０や内外気切り替えダンパ２２を取り付ける取り付け構造のスペース確保が容易になり、また、本体ケース１００が分割ケースである場合に、前述した舌部１０１Ａにおける分割ケースの篏合箇所を避けてインテークケース２０や内外気切り替えダンパ２２を取り付けることができる。 The intake case 20 in which the inside/outside air switching damper 22 is provided is shaped to avoid a tongue portion 101A (see FIGS. 7 and 8) of the scroll housing 101, which will be described later. The rotating shaft 22A of the inside/outside air switching damper 22 is shifted to the front side of the vehicle avoiding the tongue portion 101A. According to this, it becomes easy to secure a space for the mounting structure for mounting the intake case 20 and the inside/outside air switching damper 22 to the main body case 100, and when the main body case 100 is a divided case, the above-described divided case at the tongue portion 101A can be easily secured. The intake case 20 and the inside/outside air switching damper 22 can be attached while avoiding the joint between the two.
　内外気切り替えダンパ２２，２３は、そのサイズが異なるように設定されている。すなわち、一対の内気取入口３Ａ，３Ｂのうち遠心送風機１０の駆動部１１が設けられている側の内外気切り替えダンパ２２におけるダンパ内容積が、駆動部１１が設けられない側の内外気切り替えダンパ２３におけるダンパ内容積より広く設定されている。これにより、内外気切り替えダンパ２２の内側空間の一部に駆動部１１が収められる状態であっても、内外気切り替えダンパ２２，２３の内側を通って吸い込み口１２Ａ，１３Ａに入る空気の流量に大きな差が生じないようにしている。 The inside/outside air switching dampers 22 and 23 are set to have different sizes. That is, of the pair of inside air intakes 3A and 3B, the damper internal volume of the inside/outside air switching damper 22 on the side where the drive unit 11 of the centrifugal fan 10 is provided is equal to that of the inside/outside air switching damper 22 on the side where the drive unit 11 is not provided. It is set wider than the internal volume of the damper at 23 . As a result, even when the drive unit 11 is accommodated in a part of the inner space of the inside/outside air switching damper 22, the flow rate of the air entering the suction ports 12A and 13A through the insides of the inside/outside air switching dampers 22 and 23 is reduced. I try not to make a big difference.
　そして、図６に示すように、各々のインテークケース２０，２１は、内部に設けられる内外気切り替えダンパ２２，２３の摺動範囲におけるケース内空間が、内外気切り替えダンパ２２，２３の摺動範囲外におけるケース内空間に対して広くなっている。このように、内部に設置される内外気切り替えダンパ２２，２３の摺動範囲外におけるインテークケース２０，２１のケース形状を摺動範囲のケース形状より小さくして、遠心送風機１０側に近づけるケース形状にすることで、インテークケース２０，２１を必要最小限の大きさに小型化でき、車両用空調装置１の車幅方向の寸法を削減して、車載時に要する空間の省スペース化を図ることができる。 As shown in FIG. 6, each of the intake cases 20 and 21 has an internal space in the sliding range of the inside/outside air switching dampers 22 and 23 provided therein. It is wider than the space inside the case outside. In this way, the case shape of the intake cases 20, 21 outside the sliding range of the inside/outside air switching dampers 22, 23 installed inside is made smaller than the case shape of the sliding range, and the case shape is closer to the centrifugal blower 10 side. By doing so, the intake cases 20 and 21 can be miniaturized to the minimum required size, the dimension of the vehicle air conditioner 1 in the vehicle width direction can be reduced, and the space required for the vehicle can be saved. can.
　図７及び図８は、車両用空調装置１の空気取入部１Ａと温調送風部１Ｂを構成する本体ケース１００の内部構成を示している。本体ケース１００は、空気取入部１Ａにおいて、遠心送風機１０のスクロールハウジング１０１を備えている。スクロールハウジング１０１は、吸い込み口１２Ａ，１３Ａから吸い込まれた空気の送風流路を形成しており、図示省略した遠心ファンの外周に最も近いところに舌部１０１Ａが形成されている。 7 and 8 show the internal configuration of the body case 100 that constitutes the air intake portion 1A and the temperature control blower portion 1B of the vehicle air conditioner 1. FIG. The body case 100 has a scroll housing 101 of the centrifugal blower 10 in the air intake portion 1A. The scroll housing 101 forms a flow passage for the air sucked from the suction ports 12A and 13A, and has a tongue portion 101A formed closest to the outer periphery of a centrifugal fan (not shown).
　前述した駆動部１１側の内外気切り替えダンパ２２の回転軸２２Ａを通る直線Ｌは、図７に示すように、遠心送風機１０が有するスクロールハウジング１０１の舌部１０１Ａより車両前方側に配置される。これにより、内外気切り替えダンパ２２の高さ方向の寸法を必要最小限にした場合であっても、回転軸２２Ａが舌部１０１Ａに干渉することが無い。これにより、舌部１０１Ａを適正な位置に設置して送風性能を確保しながら、内外気切り替えダンパ２２の高さ方向寸法を必要最小限に設定することができる。 The straight line L passing through the rotating shaft 22A of the inside/outside air switching damper 22 on the drive unit 11 side described above is arranged on the front side of the vehicle from the tongue portion 101A of the scroll housing 101 of the centrifugal blower 10, as shown in FIG. As a result, even when the inside/outside air switching damper 22 has the minimum height dimension, the rotary shaft 22A does not interfere with the tongue portion 101A. As a result, the height dimension of the inside/outside air switching damper 22 can be set to the necessary minimum while the tongue portion 101A is installed at an appropriate position to ensure the air blowing performance.
　図７及び図８において、本体ケース１００内の空気の流れを説明する。本体ケース１００の内部には、第１吹出部４を開閉する第１開閉ドア４Ａ、第２吹出部５を開閉する第２開閉ドア５Ａ、第３吹出部６におけるフット吹出口６Ａの風向を切り替える風向切り替えドア６０を備えている。また、本体ケース１００の内部は２層隔壁部１１０によって上層部１１１と下層部１１２に分かれており、上層部１１１には、上層エアミックスドア１１１Ａが設けられ、下層部１１２には下層エアミックスドア１１２Ａが設けられる。 The flow of air in the main body case 100 will be described with reference to FIGS. 7 and 8. FIG. Inside the main body case 100, there are a first opening/closing door 4A for opening and closing the first blowout portion 4, a second opening/closing door 5A for opening and closing the second blowout portion 5, and a foot blowout port 6A in the third blowout portion 6 for switching the wind direction. A wind direction switching door 60 is provided. The interior of the main body case 100 is divided into an upper layer portion 111 and a lower layer portion 112 by a two-layer partition portion 110. The upper layer portion 111 is provided with an upper layer air mix door 111A, and the lower layer portion 112 is provided with a lower layer air mix door. 112A is provided.
　図７に示す吸い込み口１２Ａ側のスクロールハウジング１０１は、舌部１０１Ａの下流側が上層部１１１に連通するようになっており、図８に示す吸い込み口１３Ａ側のスクロールハウジング１０１は、舌部１０１Ａの下流側が下層部１１２に連通するようになっている。 The scroll housing 101 on the suction port 12A side shown in FIG. 7 communicates with the upper layer portion 111 at the downstream side of the tongue portion 101A, and the scroll housing 101 on the suction port 13A side shown in FIG. The downstream side communicates with the lower layer portion 112 .
　吸い込み口１２Ａから吸い込まれた空気は、前述したようにスクロールハウジング１０１の舌部１０１Ａを通過して、上層部１１１に入り、本体ケース１００内に設置されるフィルタ１２０と冷却器（クーラコア）１２１を通った後、上層エアミックスドア１１１Ａによって送風路が切り替えられる。 Air sucked from the suction port 12A passes through the tongue portion 101A of the scroll housing 101 as described above, enters the upper layer portion 111, and passes through the filter 120 and the cooler (cooler core) 121 installed in the main body case 100. After passing through, the air passage is switched by the upper air mix door 111A.
　この際、上層エアミックスドア１１１Ａが図示実線の状態では、そのまま（加熱器（ヒータコア）１２２を経由すること無く）、第１吹出部４、第２吹出部５、又は第３吹出部６に送風され、上層エアミックスドア１１１Ａが図示一点鎖線の状態では、加熱器１２２を経由して、第１吹出部４、第２吹出部５、又は第３吹出部６に送風される。 At this time, when the upper air mix door 111A is in the state of the solid line in the figure, the air is blown to the first blowing part 4, the second blowing part 5, or the third blowing part 6 as it is (without passing through the heater (heater core) 122). When the upper air mix door 111A is in the state of the one-dot chain line in the drawing, the air is blown to the first blowing part 4, the second blowing part 5, or the third blowing part 6 via the heater 122.
　これに対して、吸い込み口１３Ａから吸い込まれた空気は、前述したようにスクロールハウジング１０１の舌部１０１Ａを通過して、下層部１１２に入り、本体ケース１００内に設置されるフィルタ１２０と冷却器１２１を通った後、下層エアミックスドア１１２Ａによって送風路が切り替えられる。 On the other hand, the air sucked from the suction port 13A passes through the tongue portion 101A of the scroll housing 101 as described above, enters the lower layer portion 112, and enters the filter 120 and the cooler installed in the main body case 100. After passing through 121, the air passage is switched by the lower air mix door 112A.
　この際、下層エアミックスドア１１２Ａが図示実線の状態では、そのまま（加熱器１２２を経由すること無く）、第１吹出部４、第２吹出部５、又は第３吹出部６に送風され、下層エアミックスドア１１２Ａが図示一点鎖線の状態では、加熱器１２２を経由して、第１吹出部４、第２吹出部５、又は第３吹出部６に送風される。 At this time, when the lower air mix door 112A is in the state of the solid line in the figure, the air is blown to the first blowing part 4, the second blowing part 5, or the third blowing part 6 as it is (without passing through the heater 122). When the air mix door 112A is in the state of the dashed line in the drawing, the air is blown to the first blowout section 4, the second blowout section 5, or the third blowout section 6 via the heater 122. FIG.
　このような特徴を有する車両用空調装置１によると、空気取入部１Ａにおいて、外気取入口２を車両前方側に配置し、内気取入口３（３Ａ，３Ｂ）を車幅方向に配置して、内外気切り替えダンパ２２，２３を回転軸２２Ａ，２３Ａが上下方向に向くロータリ式ダンパにすることで、車両用空調装置１の上下寸法を低く抑えることができる。 According to the vehicle air conditioner 1 having such characteristics, in the air intake portion 1A, the outside air intake 2 is arranged on the vehicle front side, and the inside air intake 3 (3A, 3B) is arranged in the vehicle width direction, By using rotary dampers with rotating shafts 22A and 23A directed vertically as the inside/outside air switching dampers 22 and 23, the vertical dimension of the vehicle air conditioner 1 can be kept low.
　また、空気取入部１Ａにおける遠心送風機１０の駆動部１１を、内外気切り替えダンパ２２の回転軸２２Ａを通る直線Ｌと重なるように配置して、駆動部１１の一部を内外気切り替えダンパ２２の内側に収めることで、空気取入部１Ａを車幅方向に向けて小型化することができる。この際、内外気切り替えダンパ２２の回転軸２２Ａは、遠心送風機１０の駆動部１１の上下に配置されるので、遠心送風機１０の吸い込み口１２Ａに対して内外気切り替えダンパ２２の高さを十分に大きくすることができ、遠心送風機１０の良好な吸い込み性能を確保することができる。 Further, the driving portion 11 of the centrifugal blower 10 in the air intake portion 1A is arranged so as to overlap with the straight line L passing through the rotation shaft 22A of the inside/outside air switching damper 22, and a part of the driving portion 11 is placed on the inside/outside air switching damper 22. By storing it inside, the air intake portion 1A can be miniaturized in the vehicle width direction. At this time, since the rotating shaft 22A of the inside/outside air switching damper 22 is arranged above and below the drive unit 11 of the centrifugal fan 10, the height of the inside/outside air switching damper 22 is sufficiently high with respect to the suction port 12A of the centrifugal fan 10. It can be made large, and good suction performance of the centrifugal fan 10 can be ensured.
　更に、内外気切り替えダンパ２２，２３の回転軸２２Ａ，２３Ａは、遠心送風機１０のスクロールハウジング１０１における舌部１０１Ａよりも車両前方側に設けているので、内外気切り替えダンパ２２，２３と遠心送風機１０の駆動部１１の取り付けフランジとのクリアランスを確保し易くなり、内外気切り替えダンパ２２，２３との干渉を避けて駆動部１１の取り付け取り外しを行い易くなる。 Furthermore, since the rotation shafts 22A and 23A of the inside/outside air switching dampers 22 and 23 are provided on the vehicle front side of the tongue portion 101A in the scroll housing 101 of the centrifugal fan 10, the inside/outside air switching dampers 22 and 23 and the centrifugal fan 10 It becomes easy to secure a clearance with the mounting flange of the drive unit 11, and it becomes easy to mount and remove the drive unit 11 while avoiding interference with the inside/outside air switching dampers 22 and 23.
　また、図７及び図８に示した配置例では、フィルタ１２０をインテークケース２０，２１や内外気切り替えダンパ２２，２３の下部を重ならないようにしているので、フィルタ１２０の取り外しが容易になり、メンテナンス性が向上する。 In addition, in the arrangement examples shown in FIGS. 7 and 8, since the filter 120 does not overlap the intake cases 20, 21 and the inside/outside air switching dampers 22, 23, the removal of the filter 120 is facilitated. Improve maintainability.
　以上、本発明の実施の形態について図面を参照して詳述してきたが、具体的な構成はこれらの実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計の変更等があっても本発明に含まれる。また、上述の各実施の形態は、その目的及び構成等に特に矛盾や問題がない限り、互いの技術を流用して組み合わせることが可能である。 Although the embodiments of the present invention have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments, and design modifications and the like are made within the scope of the present invention. is included in the present invention. In addition, each of the above-described embodiments can be combined by diverting each other's techniques unless there is a particular contradiction or problem in the purpose, configuration, or the like.
１：車両用空調装置，１Ａ：空気取入部，１Ｂ：温調送風部，
２：外気取入口，３（３Ａ，３Ｂ）：内気取入口，
４：第１吹出部，４Ａ：第１開閉ドア，
５：第２吹出部，５Ａ：第２開閉ドア，
６：第３吹出部，６Ａ：フット吹出口，６Ｂ：後部座席のフェイス吹出口，
６Ｃ：後部座席のフェイス吹出口，６０：風向切り替えドア，
１０：遠心送風機，１１：駆動部，１１Ａ：駆動軸，
１２，１３遠心ファン，１２Ａ，１３Ａ：吸い込み口，
２０，２１：インテークケース，２２，２３：内外気切り替えダンパ，
２２Ａ，２３Ａ：回転軸，２２Ｂ，２３Ｂ：遮蔽部，
１００：本体ケース，１０１：スクロールハウジング，１０１Ａ：舌部，
１１０：２層隔壁部，１１１：上層部，１１２：下層部，
１１１Ａ：上層エアミックスドア，１１２Ａ：下層エアミックスドア，
１２０：フィルタ，１２１：冷却器，１２２：加熱器 1: vehicle air conditioner, 1A: air intake section, 1B: temperature control blower section,
2: outside air intake, 3 (3A, 3B): inside air intake,
4: first blowout portion, 4A: first opening/closing door,
5: second blowout part, 5A: second opening/closing door,
6: third outlet, 6A: foot outlet, 6B: rear seat face outlet,
6C: rear seat face outlet, 60: wind direction switching door,
10: centrifugal blower, 11: drive unit, 11A: drive shaft,
12, 13 centrifugal fans, 12A, 13A: suction port,
20, 21: intake case, 22, 23: inside/outside air switching damper,
22A, 23A: rotating shafts, 22B, 23B: shielding parts,
100: body case, 101: scroll housing, 101A: tongue,
110: two-layer partition, 111: upper layer, 112: lower layer,
111A: upper air mix door, 112A: lower air mix door,
120: Filter, 121: Cooler, 122: Heater

Claims (4)

  1. 　内部に遠心送風機を備え、前記遠心送風機の吸い込み口に外気又は内気を取り入れる内気取入口と外気取入口を有する空気取入部を備える車両用空調装置であって、
    　前記遠心送風機の駆動軸に交差する車両前方側に前記外気取入口を設けると共に、前記駆動軸に沿った方向に前記内気取入口を設け、
    　前記外気取入口と前記内気取入口を開閉する内外気切り替えダンパを、回転軸を中心とした一方向への回転で前記外気取入口を閉じて前記内気取入口を開き、前記回転軸を中心とした他方向への回転で前記外気取入口を開いて前記内気取入口を閉じるロータリ式ダンパとし、
    　前記回転軸を前記遠心送風機の駆動部の上下に配置すると共に、前記回転軸を通る直線が前記駆動部に重なるように配置したことを特徴とする車両用空調装置。     A vehicular air conditioner comprising a centrifugal blower inside and an air intake section having an inside air intake for taking in outside air or inside air into the suction opening of the centrifugal blower and an outside air intake,
    The outside air intake is provided on the front side of the vehicle that intersects the drive shaft of the centrifugal blower, and the inside air intake is provided in the direction along the drive shaft,
    An inside/outside air switching damper that opens and closes the outside air intake and the inside air intake is rotated in one direction about a rotation axis to close the outside air intake and open the inside air intake, and to rotate about the rotation axis. A rotary damper that opens the outside air intake and closes the inside air intake by rotating in the other direction,
    An air conditioner for a vehicle, wherein the rotating shafts are arranged above and below a driving portion of the centrifugal fan, and arranged so that a straight line passing through the rotating shaft overlaps with the driving portion.
  2. 　前記遠心送風機は、前記吸い込み口から吸い込まれた空気の送風流路を形成するスクロールハウジングを有し、
    　前記回転軸を前記スクロールハウジングの舌部よりも車両前方側に配置したことを特徴とする請求項１記載の車両用空調装置。     The centrifugal blower has a scroll housing that forms a blowing flow path for the air sucked from the suction port,
    2. A vehicle air conditioner according to claim 1, wherein said rotary shaft is arranged on the front side of the vehicle with respect to the tongue portion of said scroll housing.
  3. 　前記空気取入部は、前記内気取入口と前記外気取入口を有するインテークケースを備え、
    　前記インテークケースは、前記内外気切り替えダンパの摺動範囲におけるケース内空間が、前記内外気切り替えダンパの摺動範囲外におけるケース内空間に対して広いことを特徴とする請求項１又は２記載の車両用空調装置。     The air intake unit includes an intake case having the inside air intake and the outside air intake,
    3. The intake case according to claim 1 or 2, wherein the case interior space within the sliding range of the inside/outside air switching damper is wider than the case interior space outside the sliding range of the inside/outside air switching damper. Vehicle air conditioner.
  4. 　前記空気取入部は、前記駆動軸に沿って互いに逆向きに一対の前記内気取入口を備え、
    　一対の前記内気取入口のうち前記駆動部が設けられる側の前記内外気切り替えダンパにおけるダンパ内容積が、一対の前記内気取入口のうち前記駆動部が設けられない側の前記内外気切り替えダンパにおけるダンパ内容積より広いことを特徴とする請求項１～３のいずれか１項記載の車両用空調装置。     the air intake portion includes a pair of the inside air intake ports facing in opposite directions along the drive shaft;
    The damper internal volume of the inside/outside air switching damper on the side of the pair of inside air intakes on which the driving section is provided is equal to the damper inner volume of the inside/outside air switching damper on the side of the pair of inside air intakes on which the driving section is not provided. A vehicle air conditioner according to any one of claims 1 to 3, wherein the internal volume of the damper is larger than that of the damper.
PCT/JP2021/047405 2021-12-21 2021-12-21 Vehicle air-conditioning device WO2023119443A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0924723A (en) * 1995-05-10 1997-01-28 Nippondenso Co Ltd Air-conditioning device for vehicle
US6203420B1 (en) * 1998-12-01 2001-03-20 Valeo Climatisation Motor-vehicle heating and/or air-conditioning device, with compact motor-driven fan unit
JP2006273162A (en) * 2005-03-29 2006-10-12 Calsonic Kansei Corp Vehicular blower

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0924723A (en) * 1995-05-10 1997-01-28 Nippondenso Co Ltd Air-conditioning device for vehicle
US6203420B1 (en) * 1998-12-01 2001-03-20 Valeo Climatisation Motor-vehicle heating and/or air-conditioning device, with compact motor-driven fan unit
JP2006273162A (en) * 2005-03-29 2006-10-12 Calsonic Kansei Corp Vehicular blower

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