WO2013008662A1 - Vehicle air-conditioning device - Google Patents
Vehicle air-conditioning device Download PDFInfo
- Publication number
- WO2013008662A1 WO2013008662A1 PCT/JP2012/066885 JP2012066885W WO2013008662A1 WO 2013008662 A1 WO2013008662 A1 WO 2013008662A1 JP 2012066885 W JP2012066885 W JP 2012066885W WO 2013008662 A1 WO2013008662 A1 WO 2013008662A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heater core
- gap
- flow path
- air
- mix damper
- Prior art date
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- 238000004378 air conditioning Methods 0.000 title abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 43
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000007664 blowing Methods 0.000 description 19
- 238000009434 installation Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H1/00035—Air flow details of HVAC devices for sending an air stream of uniform temperature into the passenger compartment
- B60H1/0005—Air flow details of HVAC devices for sending an air stream of uniform temperature into the passenger compartment the air being firstly cooled and subsequently heated or vice versa
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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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00664—Construction or arrangement of damper doors
- B60H1/00671—Damper doors moved by rotation; Grilles
- B60H1/00678—Damper doors moved by rotation; Grilles the axis of rotation being in the door plane, e.g. butterfly doors
Definitions
- the present invention relates to an air mix type vehicle air conditioner including a heater core and an air mix damper.
- the HVAC unit Heating Ventilation and Air Conditioning Unit of an air conditioner mounted on a vehicle is provided with an evaporator, an air mix damper, a heater core, etc. in order from the upstream side in the air flow path in the unit case.
- the temperature-controlled air whose temperature has been adjusted is selectively passed through a plurality of blow mode switching dampers from any one of a face blow channel, a foot blow channel, a differential blow channel, and the like formed on the downstream side It is configured to be blown out.
- the air flow path is branched into a bypass flow path and a heating flow path on the downstream side of the evaporator, and a heater core is disposed on the heating flow path side.
- the flow rate ratio of the air flow divided into the bypass flow channel side and the heating flow channel side can be adjusted by the rotation angle of the air mix damper, and the air flow through the bypass flow channel and the air flow through the heater core are
- the temperature is adjusted to the temperature-controlled air at the set temperature by merging and mixing in the downstream area.
- the heater core is installed on the bottom surface side of the unit case so as to cross the heating flow path, and the upper surface is supported by a heater core upper support portion that extends across the entire width of the unit case from the left and right side surfaces of the unit case. ing.
- the heater core upper support section defines an air flow path at an upper portion of the heater core (see, for example, Patent Documents 1, 2, and 3).
- the lower portion of the heater core disposed in the heating flow path is supported by the bottom surface of the unit case, and the entire width direction of the upper surface extends from the left and right side surfaces of the unit case to the entire width direction. It was supported by an extended heater core upper support. For this reason, it is necessary to integrally form a heater core upper support portion having at least a half length in the width direction on both left and right side surfaces of the unit case.
- This heater core upper support part has a large width direction dimension, and it is necessary to increase the die-cutting gradient at the time of resin molding, the wall thickness of the base part becomes thick and the wall thickness at the tip side becomes thin, so that the wall collapses (Tilt) is likely to occur and the molding accuracy is not good.
- Such a problem is difficult to avoid from the current resin molding accuracy, and it has been difficult to keep the wall surface of the unit case from falling down.
- the present invention has been made in view of such circumstances, and a temperature adjustment is performed by setting a gap formed between the upper surface of the heater core and the rotating shaft of the air mix damper as a predetermined gap in the axial direction.
- An object of the present invention is to provide a vehicle air conditioner capable of facilitating the above and improving the temperature control performance.
- the vehicle air conditioner of the present invention employs the following means. That is, in the vehicle air conditioner according to one aspect of the present invention, the air flow path in the unit case is branched into the bypass flow path and the heating flow path downstream of the evaporator, and the heater core is disposed on the heating flow path side.
- a rotary shaft is disposed above the heater core, and an air mix damper is provided for adjusting the flow rate ratio of the air flow flowing through the bypass flow path and the heating flow path by being rotated around the rotary shaft.
- the vehicle air conditioner is provided with heater core support portions that support only the upper left and right shoulders of the heater core on the left and right side surfaces of the unit case, and the heater core support portion supports the upper surface side of the heater core.
- a gap formed between the upper surface of the heater core and the rotation shaft of the air mix damper in the air mix damper is a constant gap in the axial direction. Gap adjusting part is provided to be set.
- the vehicle air conditioner including the air mix damper in which the rotation shaft is disposed in the upper portion of the heater core
- only the upper left and right shoulders of the heater core are supported on the left and right side surfaces of the unit case.
- a heater core support portion is provided, and the heater core support portion supports the upper surface side of the heater core, and a gap formed between the upper surface of the heater core and the rotation shaft of the air mix damper is fixed to the air mix damper in the axial direction.
- the heater core upper surface is supported by the heater core support portions that support only the upper left and right shoulders of the heater core provided on the left and right side surfaces of the unit case.
- a gap is formed between the top surface and the rotation shaft of the air mix damper. This gap is provided on the air mix damper side.
- the clearance adjustment unit has an arc surface whose outer peripheral surface has the same center as the rotation center of the rotation shaft, and the shaft is independent of the rotation angle of the air mix damper.
- the direction gap can be set to a constant gap.
- the outer peripheral surface of the clearance adjustment portion is an arc surface having the same center as the rotation center of the rotation shaft, and the axial clearance can be set to a constant clearance regardless of the rotation angle of the air mix damper. Therefore, the gap in the axial direction formed between the upper surface of the heater core and the rotation shaft of the air mix damper can be made constant by the gap adjustment unit regardless of the rotation angle of the air mix damper. it can. Therefore, there is no variation in the axial gap due to the rotation angle of the air mix damper, and this can also facilitate the temperature adjustment and improve the temperature control performance.
- the gap adjusting portion is formed integrally with the rotary shaft around the axis of the rotary shaft along the axial direction.
- the gap adjustment portion is formed integrally with the rotation shaft around the axis of the rotation axis along the axial direction, by providing the gap adjustment portion around the rotation axis, the air mix damper originally There is no possibility of adversely affecting the function of the machine, making its structure complicated or difficult to form. Therefore, the heater core upper support part that supports the upper surface of the heater core over its entire width is deleted, and the heater core is removed. While simplifying the support structure, the gap between the upper surface of the heater core and the rotating shaft can be set constant, thereby facilitating temperature adjustment and improving temperature control performance.
- the gap adjusting unit is provided corresponding to at least a rotation angle range from a maximum cooling position to a maximum heating position, which is a rotation range of the air mix damper. ing.
- the gap adjusting portion is provided corresponding to at least the rotation angle range between the maximum cooling position and the maximum heating position, which is the rotation range of the air mix damper, the air mix damper is temperature adjusted.
- the axial gap formed between the upper surface of the heater core and the rotating shaft of the air mix damper can be set to a constant gap by the gap adjusting unit in the entire rotation range for fulfilling the function. Therefore, it is possible to suppress an increase in cost by minimizing the installation range of the gap adjusting portion and reducing the change portion of the air mix damper.
- a protruding portion that protrudes in the anti-damper direction across the rotating shaft is integrally formed with the gap adjusting portion, and a maximum heating position is formed in the protruding portion.
- a seal member is provided in contact with the upper surface of the heater core and closes the axial gap.
- the protrusion that protrudes in the anti-damper direction across the rotation shaft is formed integrally with the gap adjustment part, and the protrusion is brought into contact with the upper surface of the heater core near the maximum heating position. Since the seal member for closing the axial gap is provided, the seal member provided at the protrusion from the gap adjustment portion is brought into contact with the upper surface of the heater core in the vicinity of the maximum heating position. An axial gap formed between the damper and the rotating shaft of the damper can be closed. Accordingly, in the vicinity of the maximum heating position, the bypass of the cold air from the gap can be eliminated, and the heating capacity can be maximized.
- the rotation of the heater core upper surface and the air mix damper is performed.
- a gap is formed between the shaft and the gap, which can be set to a constant gap that is constant in the axial direction and made as small as possible by the gap adjustment portion provided on the air mix damper side.
- FIG. 2 is a configuration diagram around a heater core in a state where a lower case of the vehicle air conditioner shown in FIG. 1 is removed. It is a longitudinal cross-sectional view around the heater core support part of the vehicle air conditioner shown in FIG. It is a longitudinal cross-sectional view which shows the rotation states (A) and (B) of the air mix damper of the vehicle air conditioner shown in FIG. It is a perspective view of the air mix damper shown in FIG.
- FIG. 1 is a longitudinal sectional view of a vehicle air conditioner (HVAC unit) according to an embodiment of the present invention
- FIG. 2 is an exploded perspective view of the air conditioner as viewed from the heater core side.
- a vehicle air conditioner (HVAC unit; Heating Venting and Air Conditioning Unit) 1 includes a resin-made unit case 2 that is formed by integrally joining a plurality of divided cases that are divided into upper, lower, left, and right sides. ing.
- the air flow blown from the blower unit 3 composed of the fan case 4, the impeller 5 and the fan motor 6 disposed on the side of the unit case 2 is forward and backward (left and right in FIG. 1).
- an air flow path 7 is formed to flow downstream.
- An evaporator 8 constituting a refrigeration cycle (not shown) is disposed substantially vertically in the upstream portion of the air flow path 7.
- the air flow path 7 is branched into a bypass flow path 9 and a heating flow path 10 on the downstream side of the evaporator 8.
- the air mix damper 11 in which the sub-damper 11 ⁇ / b> A is provided integrally with the rotation shaft 12, is connected to the branch portion between the bypass flow path 9 and the heating flow path 10. It is rotatably arranged at the center, and is configured to be able to adjust the flow rate ratio of the air flow flowing through the bypass flow path 9 and the heating flow path 10.
- a heater core 13 in which cooling water from an engine cooling water circuit (not shown) is circulated is disposed in the heating channel 10 substantially vertically.
- the bypass flow path 9 and the heating flow path 10 are merged in an air mix area 14 downstream of the air mix damper 11, and a face blowing flow path 15, a foot blowing flow path 16 and a differential blowing flow formed on the downstream side thereof. It communicates with the three outlet channels of the passage 17.
- a differential / face damper 18 for switching the blowing mode is provided between the face blowing channel 15 and the differential blowing channel 17.
- a foot damper 19 for switching the blowing mode is provided at the inlet of the foot blowing channel 16.
- the differential / face damper 18 can be rotated around the rotation shaft 20 between a position where the face blowing flow path 15 is fully closed and a position where the differential blowing flow path 17 is fully closed.
- the foot damper 19 has a rotation shaft 21 around the position between the position where the foot blowing channel 16 is fully closed and the position where the channel connecting to the face blowing channel 15 and the differential blowing channel 17 is fully closed.
- the differential / face damper 18 and the foot damper 19 are at a blowing mode position selected via a link mechanism 22 comprising a lever and a link connected to the shaft ends of the rotary shafts 20 and 21. It can be turned.
- the blowing mode of the temperature-controlled air blown into the passenger compartment is changed to the face mode and the face blowing passage 15 that are blown out from the face blowing passage 15.
- the heater core 13 is disposed substantially vertically in the heating channel 10 in the unit case 2 so as to cross the channel as described above. More specifically, as shown in FIGS. 3 and 4, the lower part of the heater core 13 is placed on the heater core installation portion 23 provided on the unit case 2 side on the bottom surface side of the heating flow path 10. The upper part is installed in a state where the left and right shoulder parts 13A, 13B are supported by heater core support parts 24, 25 integrally formed on the side surfaces 2A, 2B of the unit case 2.
- the heater core support portions 24 and 25 are integrally formed on the inner surface of the unit case 2 so as to protrude inward from the left and right side surfaces 2A and 2B of the resin unit case 2 by a predetermined dimension.
- the support portions of the heater core support portions 24 and 25 have a C-channel cross section (see FIG. 1), and pressers that hold the upper surface, the end surface, and the front and rear side surfaces of the upper left and right shoulder portions 13A and 13B of the heater core 13, respectively. It is set as the structure provided with the surfaces 26, 27, 28, and 29 (refer FIG.1, 4).
- the heater core support portions 24 and 25 are configured to support only the upper left and right shoulder portions 13A and 13B of the heater core 13, the support wall surface for supporting the upper surface 13C side of the heater core 13 over the entire width is eliminated. Thereby, the thickness etc. of the heater core support parts 24 and 25 are made thin, and the heater core support parts 24 and 25 and the rotating shaft 12 of the air mix damper 11 are installed in a state close to each other. Incidentally, with this configuration, the distance between the heater core 13 and the rotating shaft 12 of the air mix damper 11 is reduced by about 10 mm in the vertical and front-rear directions, and the HVAC unit 1 can be downsized.
- the gap adjusting portion 30 is integrally formed around the rotary shaft 12 of the air mix damper 11. is doing. As shown in FIG. 3, both end portions of the gap adjusting portion 30 are notched to avoid interference with the heater core support portions 24 and 25.
- the gap adjusting unit 30 has an outer peripheral surface 30 ⁇ / b> A that is an arc surface having the same center as the center O of the rotation shaft 12 of the air mix damper 11.
- the direction gap can be set to a constant gap S (see FIG. 3).
- the gap adjustment unit 30 starts from the maximum heating position (MAX HOT position) where the air mix damper 11 is in contact with the seal surface 2C on the unit case 2 side shown in FIG. B) is provided corresponding to the rotation angle range during the rotation to the maximum cooling position (MAX COOL position) in contact with the seal surface 2D on the unit case 2 side through the intermediate opening position shown in B). .
- the gap adjusting portion 30 is integrally formed with a protruding portion 30B that protrudes toward the sub-damper 11A (anti-damper direction) across the rotating shaft 12 of the air mix damper 11.
- the surface of the protrusion 30 ⁇ / b> B is in contact with the upper surface 13 ⁇ / b> C of the heater core 13 in the vicinity of the maximum heating position, and the upper surface 13 ⁇ / b> C of the heater core 13 and the rotating shaft 12 of the air mix damper 11.
- a seal member (insulator) 31 is provided for closing the gap S that is formed in the axial direction.
- the air flow blown from the blower unit 3 to the air flow path 7 is cooled by heat exchange with the refrigerant while passing through the evaporator 8, and a part of the air flow is bypassed according to the opening degree of the air mix damper 11.
- the flow path 9 side and the other part are circulated to the heating flow path 10 side.
- the hot air heated by the heater core 13 in the heating channel 10 and the cold air that has passed through the bypass channel 9 are mixed in the air mix region 14 and adjusted to a temperature-controlled air at a set temperature, and then the differential / face damper 18 and the foot damper are mixed.
- the air is blown into the vehicle compartment from any one of the face blowout flow path 15, the foot blowout flow path 16, and the differential blowout flow path 17 selected by opening and closing 19, and used for air conditioning in the vehicle compartment.
- the heater core 13 that heats the air flow divided into the heating flow path 10 heats the air flow by exchanging heat between the high-temperature cooling water circulated from the engine cooling water circuit and the air flow. It is arranged substantially vertically so as to cross the road 10.
- the heater core 13 is installed in a state of being placed on a heater core installation portion 23 provided on the bottom surface side of the heating flow path 10, and only the left and right shoulder portions 13 ⁇ / b> A and 13 ⁇ / b> B of the upper portion of the unit case 2 are installed. It is supported by heater core support portions 24 and 25 provided on the left and right side surfaces 2A and 2B, respectively.
- the upper surface of the heater core 13 is provided on the left and right side surfaces 2A and 2B of the unit case 2, and the upper surface, the end surface, and the front and rear side surfaces of the left and right shoulder portions 13A and 13B of the heater core 13 are pressed.
- the heater core 13 is supported at a predetermined position in the heating flow path 10 by supporting at least four shoulder portions by supporting the C core cross-sectional shape heater core support portions 24 and 25 having 26, 27, 28, and 29. It can be positioned and fixedly supported.
- the heater core 13 can be firmly installed in the heating flow path 10 without providing support walls for supporting the upper surface 13C of the heater core 13 over the entire width on the left and right side surfaces 2A and 2B of the unit case 2. Therefore, the structure of the unit case 2 can be simplified, the molding can be facilitated, and the weight and the cost can be reduced by reducing the amount of resin used. Further, since a support wall for supporting the upper surface 13C of the heater core 13 over its entire width is not required and the heater core 13 and the rotary shaft 12 of the air mix damper 11 can be installed close to each other, the unit case 2 and thus the HVAC unit corresponding to the dimension. Therefore, the vertical and longitudinal dimensions of the HVAC unit 1 can be reduced, the HVAC unit 1 can be made compact and lightweight, and the mountability on the vehicle can be improved.
- the gap adjustment portion 30 is integrally formed around the rotation shaft 12 of the air mix damper 11. .
- the gap formed between the upper surface 13C of the heater core 13 and the rotating shaft 12 of the air mix damper 11 is a gap S that is constant in the axial direction and made as small as possible by the gap adjusting unit 30. It can be.
- the upper surface 13C of the heater core 13 is supported by the heater core upper support portion provided on the unit case 2 side over the entire width, that is, due to the gap variation due to the inclination of the wall surface of the heater core upper support portion.
- the outer peripheral surface 30A of the gap adjusting portion 30 is an arc surface having the same center as the rotation center O of the rotary shaft 12 of the air mix damper 11, and the axial gap is a constant gap regardless of the rotation angle of the air mix damper 11. S can be set. For this reason, the gap in the axial direction formed between the upper surface 13 ⁇ / b> C of the heater core 13 and the rotating shaft 12 of the air mix damper 11 is made constant by the gap adjusting unit 30 regardless of the rotation angle of the air mix damper 11. Therefore, there is no variation in the axial gap S depending on the rotation angle of the air mix damper 11, which also facilitates temperature adjustment and improves temperature control performance.
- the gap adjusting portion 30 is formed integrally with the rotary shaft 12 along the axial direction around the rotation shaft 12 of the air mix damper 11, the gap adjusting portion 30 is provided around the rotary shaft 12. Therefore, there is no possibility that the original function of the air mix damper 11 will be adversely affected, the structure of the air mix damper 11 may be complicated, or molding may be difficult. While eliminating the support part and simplifying the support structure of the heater core 13, the gap S between the upper surface 13C of the heater core 13 and the rotating shaft 12 is set to be constant, thereby facilitating temperature adjustment and improving temperature control performance. Can be planned.
- the gap adjusting unit 30 is only compatible with the rotation angle range from the maximum cooling position (MAX COOL position) that is the rotation range of the air mix damper 11 to the maximum heating position (MAX HOT position).
- MAX COOL position the maximum cooling position
- MAX HOT position the maximum heating position
- a protrusion 30B that protrudes in the anti-damper direction with the rotary shaft 12 interposed therebetween is integrally formed with respect to the gap adjustment part 30, and the upper surface 13C of the heater core 13 near the maximum heating position is formed in this protrusion 30B.
- a sealing member 31 that closes the axial clearance S is provided.
- the upper surface 13C of the heater core 13 and the air mix 13 are brought into contact with the upper surface 13C of the heater core 13 by bringing the seal member 31 provided in the protrusion 30B integrally formed with the gap adjusting portion 30 in the vicinity of the maximum heating position.
- the axial gap S formed between the damper 11 and the rotary shaft 12 can be closed. Therefore, in the vicinity of the maximum heating position, the bypass of the cold air from the gap S is eliminated and the heating capacity is maximized. can do.
- this invention is not limited to the invention concerning the said embodiment, In the range which does not deviate from the summary, it can change suitably.
- the evaporator 8 and the heater core 13 are arranged substantially vertically.
- the evaporator 8 and the heater core 13 are not necessarily arranged vertically, and may be arranged obliquely. Of course.
- the unit case 2 is configured by integrally joining a plurality of divided cases, but the divided form is not particularly limited, and the heater core support portions 24 and 25 are provided by the heater core 13. What is necessary is just to shape
- HVAC unit Vehicle air conditioner
- Unit cases 2A and 2B Left and right side surfaces of unit case 7
- Air flow path 8 Evaporator 9
- Bypass flow path 10 Heating flow path 11
- Air mix damper 12 Rotating shaft 13 Heater cores 13A and 13B Upper left and right shoulders 13C Heater core upper surfaces 24 and 25 Heater core Support part 30 Gap adjustment part 30A Outer peripheral surface 30B Protrusion part 31 Seal member O Center S of rotating shaft S Gap
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- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
すなわち、本発明の一態様にかかる車両用空調装置は、ユニットケース内の空気流路がエバポレータの下流でバイパス流路と加熱流路とに分岐され、該加熱流路側にヒータコアが配設されるとともに、該ヒータコアの上方部位に回転軸が配置され、該回転軸回りに回動されることにより前記バイパス流路および前記加熱流路に流通する空気流の流量割合を調整するエアミックスダンパが設けられている車両用空調装置であって、前記ユニットケースの左右両側面に前記ヒータコアの上部左右両肩部のみを支持するヒータコア支持部を設け、該ヒータコア支持部により前記ヒータコアの上面側を支持するとともに、前記エアミックスダンパに前記ヒータコアの上面と該エアミックスダンパの回転軸との間に形成される隙間を軸方向に一定の隙間に設定する隙間調整部が設けられている。 In order to solve the above problems, the vehicle air conditioner of the present invention employs the following means.
That is, in the vehicle air conditioner according to one aspect of the present invention, the air flow path in the unit case is branched into the bypass flow path and the heating flow path downstream of the evaporator, and the heater core is disposed on the heating flow path side. In addition, a rotary shaft is disposed above the heater core, and an air mix damper is provided for adjusting the flow rate ratio of the air flow flowing through the bypass flow path and the heating flow path by being rotated around the rotary shaft. The vehicle air conditioner is provided with heater core support portions that support only the upper left and right shoulders of the heater core on the left and right side surfaces of the unit case, and the heater core support portion supports the upper surface side of the heater core. In addition, a gap formed between the upper surface of the heater core and the rotation shaft of the air mix damper in the air mix damper is a constant gap in the axial direction. Gap adjusting part is provided to be set.
図1には、本発明の一実施形態に係る車両用空調装置(HVACユニット)の縦断面図が示され、図2には、それをヒータコア側から見た分解斜視図が示されている。
車両用空調装置(HVACユニット;Heating Ventilation and Air Conditioning Unit)1は、上下、左右に分割して成形された複数の分割ケースを一体に結合することによって構成される樹脂製のユニットケース2を備えている。 Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a longitudinal sectional view of a vehicle air conditioner (HVAC unit) according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the air conditioner as viewed from the heater core side.
A vehicle air conditioner (HVAC unit; Heating Venting and Air Conditioning Unit) 1 includes a resin-made
ブロアユニット3から空気流路7に送風された空気流は、エバポレータ8を通過する間に冷媒と熱交換されて冷却され、エアミックスダンパ11の開度に応じて、空気流の一部はバイパス流路9側、他の一部は加熱流路10側に流通される。加熱流路10でヒータコア13により加熱された温風とバイパス流路9を経た冷風とがエアミックス域14で混合され、設定温度の温調風に調整された後、デフ/フェイスダンパ18およびフットダンパ19の開閉により選択されるフェイス吹出流路15、フット吹出流路16およびデフ吹出流路17のいずれから車室内に吹出され、車室内の空調に供される。 With the configuration described above, according to the present embodiment, the following operational effects can be obtained.
The air flow blown from the
2 ユニットケース
2A,2B ユニットケースの左右両側面
7 空気流路
8 エバポレータ
9 バイパス流路
10 加熱流路
11 エアミックスダンパ
12 回転軸
13 ヒータコア
13A,13B 上部左右両肩部
13C ヒータコア上面
24,25 ヒータコア支持部
30 隙間調整部
30A 外周面
30B 突出部
31 シール部材
O 回転軸の中心
S 隙間
1 Vehicle air conditioner (HVAC unit)
2
Claims (5)
- ユニットケース内の空気流路がエバポレータの下流でバイパス流路と加熱流路とに分岐され、該加熱流路側にヒータコアが配設されるとともに、該ヒータコアの上方部位に回転軸が配置され、該回転軸回りに回動されることにより前記バイパス流路および前記加熱流路に流通する空気流の流量割合を調整するエアミックスダンパが設けられている車両用空調装置であって、
前記ユニットケースの左右両側面に前記ヒータコアの上部左右両肩部のみを支持するヒータコア支持部を設け、該ヒータコア支持部により前記ヒータコアの上面側を支持するとともに、
前記エアミックスダンパに前記ヒータコアの上面と該エアミックスダンパの回転軸との間に形成される隙間を軸方向に一定の隙間に設定する隙間調整部が設けられている車両用空調装置。 The air flow path in the unit case is branched into a bypass flow path and a heating flow path downstream of the evaporator, a heater core is disposed on the heating flow path side, and a rotating shaft is disposed above the heater core. A vehicle air conditioner provided with an air mix damper that adjusts a flow rate ratio of an air flow flowing through the bypass flow path and the heating flow path by being rotated around a rotation axis,
Provided on both the left and right side surfaces of the unit case is a heater core support part that supports only the upper left and right shoulders of the heater core, and supports the upper surface side of the heater core by the heater core support part.
A vehicle air conditioner in which the air mix damper is provided with a gap adjusting portion that sets a gap formed between the upper surface of the heater core and the rotation shaft of the air mix damper to a constant gap in the axial direction. - 前記隙間調整部は、その外周面が前記回転軸の回転中心と同一の中心を有する円弧面とされ、前記エアミックスダンパの回転角度によらず前記軸方向隙間を一定の隙間に設定可能な構成とされている請求項1に記載の車両用空調装置。 The clearance adjustment portion has an outer peripheral surface that is an arc surface having the same center as the rotation center of the rotation shaft, and the axial clearance can be set to a constant clearance regardless of the rotation angle of the air mix damper. The vehicle air conditioner according to claim 1, wherein
- 前記隙間調整部は、前記回転軸の軸周りに軸方向に沿って該回転軸と一体に成形されている請求項1または2に記載の車両用空調装置。 The vehicular air conditioner according to claim 1 or 2, wherein the gap adjusting portion is formed integrally with the rotary shaft around the axis of the rotary shaft along the axial direction.
- 前記隙間調整部は、少なくとも前記エアミックスダンパの回転範囲である最大冷房位置から最大暖房位置までの間の回転角度範囲に対応して設けられている請求項1ないし3のいずれかに記載の車両用空調装置。 The vehicle according to any one of claims 1 to 3, wherein the gap adjusting portion is provided corresponding to at least a rotation angle range from a maximum cooling position to a maximum heating position, which is a rotation range of the air mix damper. Air conditioner.
- 前記隙間調整部に対して、前記回転軸を挟んで反ダンパ方向に突出された突出部を一体に成形し、該突出部に最大暖房位置付近で前記ヒータコアの上面に当接され、前記軸方向隙間を閉鎖するシール部材が設けられている請求項1ないし4のいずれかに記載の車両用空調装置。 A protrusion protruding in the anti-damper direction across the rotating shaft is formed integrally with the gap adjustment portion, and the protrusion is brought into contact with the upper surface of the heater core in the vicinity of the maximum heating position. The vehicle air conditioner according to any one of claims 1 to 4, wherein a seal member for closing the gap is provided.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112012002920.8T DE112012002920B4 (en) | 2011-07-13 | 2012-07-02 | vehicle air conditioning |
CN201280008720.1A CN103370216B (en) | 2011-07-13 | 2012-07-02 | Air conditioner for vehicles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011155067A JP5859234B2 (en) | 2011-07-13 | 2011-07-13 | Air conditioner for vehicles |
JP2011-155067 | 2011-07-13 |
Publications (1)
Publication Number | Publication Date |
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WO2013008662A1 true WO2013008662A1 (en) | 2013-01-17 |
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ID=47505955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/066885 WO2013008662A1 (en) | 2011-07-13 | 2012-07-02 | Vehicle air-conditioning device |
Country Status (5)
Country | Link |
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US (1) | US20130014913A1 (en) |
JP (1) | JP5859234B2 (en) |
CN (1) | CN103370216B (en) |
DE (1) | DE112012002920B4 (en) |
WO (1) | WO2013008662A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5665376B2 (en) * | 2010-06-09 | 2015-02-04 | 三菱重工業株式会社 | Air conditioner for vehicles |
US20130231036A1 (en) * | 2012-03-02 | 2013-09-05 | Halla Climate Control Corp. | Air conditioning system for motor vehicles |
BR112017023177B1 (en) | 2015-05-08 | 2021-11-30 | Dow Global Technologies Llc | PROCESS FOR FORMING A POLYOLEFIN FOAM, FOAMING POLYOLEFIN, CABLE AND FOAMING POLYOLEFIN COMPOSITION |
JP6628086B2 (en) | 2015-11-12 | 2020-01-08 | 三菱重工サーマルシステムズ株式会社 | Vehicle air conditioner |
FR3122119A1 (en) * | 2021-03-31 | 2022-10-28 | Valeo Systemes Thermiques | Vehicle air heat treatment device with improved temperature management |
FR3122120A1 (en) * | 2021-03-31 | 2022-10-28 | Valeo Systemes Thermiques | Casing of a ventilation, heating and/or air conditioning system. |
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- 2011-07-13 JP JP2011155067A patent/JP5859234B2/en active Active
-
2012
- 2012-07-02 WO PCT/JP2012/066885 patent/WO2013008662A1/en active Application Filing
- 2012-07-02 DE DE112012002920.8T patent/DE112012002920B4/en active Active
- 2012-07-02 CN CN201280008720.1A patent/CN103370216B/en active Active
- 2012-07-11 US US13/546,304 patent/US20130014913A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
CN103370216A (en) | 2013-10-23 |
US20130014913A1 (en) | 2013-01-17 |
JP5859234B2 (en) | 2016-02-10 |
DE112012002920B4 (en) | 2022-03-03 |
JP2013018444A (en) | 2013-01-31 |
CN103370216B (en) | 2015-12-02 |
DE112012002920T5 (en) | 2014-03-27 |
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