WO2015059885A1 - 車両用空調ユニット - Google Patents
車両用空調ユニット Download PDFInfo
- Publication number
- WO2015059885A1 WO2015059885A1 PCT/JP2014/005139 JP2014005139W WO2015059885A1 WO 2015059885 A1 WO2015059885 A1 WO 2015059885A1 JP 2014005139 W JP2014005139 W JP 2014005139W WO 2015059885 A1 WO2015059885 A1 WO 2015059885A1
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- WIPO (PCT)
- Prior art keywords
- opening
- air
- partition plate
- passage
- door
- Prior art date
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Classifications
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H1/00064—Air flow details of HVAC devices for sending air streams of different temperatures into the passenger compartment
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H1/00028—Constructional lay-out of the devices in the vehicle
-
- 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
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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
-
- 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
- B60H1/00692—Damper doors moved by translation, e.g. curtain doors
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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
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
- B60H1/08—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator
- B60H1/10—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator the other radiator being situated in a duct capable of being connected to atmosphere outside vehicle
- B60H1/12—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator the other radiator being situated in a duct capable of being connected to atmosphere outside vehicle using an air blower
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00114—Heating or cooling details
- B60H2001/00121—More than one heat exchanger in parallel
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00114—Heating or cooling details
- B60H2001/00135—Deviding walls for separate air flows
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/0015—Temperature regulation
- B60H2001/00164—Temperature regulation with more than one by-pass
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00185—Distribution of conditionned air
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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
- B60H2001/00714—Details of seals of damper doors
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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
- B60H2001/00721—Air deflecting or air directing means
Definitions
- This disclosure relates to a vehicle air conditioning unit.
- a casing having a partition plate that partitions an upper air passage and a lower air passage, an evaporator disposed so as to straddle the upper air passage and the lower air passage, an upper air passage and a lower air passage
- Some include a heater unit that is disposed so as to straddle the side air passage and that heats the cool air blown out from the evaporator (see, for example, Patent Document 1 and Patent Document 2).
- the partition plate on the downstream side of the air flow of the heater unit in the casing is provided with an opening communicating between the upper air passage and the lower air passage and a switching door for opening and closing the opening.
- the conditioned air is blown out from the foot opening and the face opening while the opening is closed by the switching door.
- conditioned air is blown from the foot opening and the face opening with the opening being opened by the switching door.
- Hot air is circulated through the side air passage.
- JP-A-9-156348 Japanese Patent Laid-Open No. 10-181331
- the inventors of the present invention have examined the air conditioning units for vehicles of Patent Documents 1 and 2, and no pressure difference is generated between the upper air passage and the lower air passage on the downstream side of the air flow of the heater unit in the casing. Furthermore, even if the opening is opened by the switching door, sufficient warm air does not flow from the upper air passage through the opening to the lower air passage.
- the temperature difference between the temperature of the air blown from the foot opening in the bi-level mode and the temperature of the air blown from the face opening, and the temperature of the air blown from the foot opening in the foot mode and the air blowing from the face opening becomes the same.
- the present disclosure aims to provide an air conditioning unit for a vehicle in which warm air from the upper air passage is surely flowed to the foot opening through the opening by the switching door.
- the vehicle air-conditioning unit of the present disclosure includes a face opening and a foot opening provided below the face opening in the vertical direction, and allows air to flow toward the face opening and the foot opening.
- a heating heat exchanger disposed in the casing for heating the air, and a downstream side of the air flow of the heating heat exchanger,
- a first partition plate that is divided into one passage and a second passage located below the first passage; and formed on the downstream side of the air flow of the first partition plate to communicate the first passage and the second passage.
- a second opening that is disposed above the first partition plate downstream of the first opening to be heated and the air flow downstream of the heating heat exchanger, and forms a third passage between the first partition plate and the first partition plate in the first passage.
- Partition plate and second partition plate Located in the air flow downstream side, comprises a second opening for communicating the upper and lower sides of the second partition plate, first, the switching door for opening and closing the second opening, the.
- the foot opening is located below the opening forming portion that forms the first opening in the first partition plate.
- the air in the third passage flows toward the face opening.
- the air in the third passage is guided toward the foot opening by the second partition plate and the switching door.
- the hot air blown from the heat exchanger for heating through the space between the partition plates can be flowed to the foot opening side by the switching door. That is, the warm air from the first passage surely flows through the opening to the foot opening. For this reason, in the 2nd air conditioning mode, the temperature difference of the blowing air temperature of a face opening part and the blowing air temperature of a foot opening part can be enlarged compared with the 1st air conditioning mode.
- FIG. 10 is a sectional view taken along line XX in FIG. 9.
- FIG. 1 is a cross-sectional view of the air conditioning unit 10 of the vehicle air conditioner in the first embodiment, and shows a state of the bilevel mode.
- the up, down, front, and rear arrows indicate directions when the vehicle air conditioner is mounted on a vehicle.
- the ventilation system of the vehicle air conditioner of the present embodiment is roughly divided into two parts, an air conditioning unit 10 and a blower unit (not shown).
- the blower unit is offset from the center part to the passenger seat side in the lower part of the instrument panel in the passenger compartment.
- the air conditioning unit 10 is disposed at a substantially central portion in the left-right direction of the vehicle in the lower portion of the instrument panel in the vehicle interior.
- the blower unit includes an inside / outside air introduction box in which an outside air blowing path (upper air passage) and an inside air blowing path (lower air passage) are separated by a partition wall.
- the inside / outside air introduction box includes an outside air introduction port for introducing outside air (air outside the passenger compartment) into the outside air blowing passage, an inside air introduction port for introducing inside air (air inside the passenger compartment) into the inside air blowing passage, and an outside air introduction port and inside air introduction.
- An inside / outside air switching door that opens at least one of the mouths.
- a first centrifugal multiblade fan that introduces outside air from the outside air introduction port or inside air from the inside air introduction port and blows it out to the upper air passage of the air conditioning unit 10 is disposed on the outside air blowing path side of the inside and outside air introduction box. Yes. Accordingly, one of the outside air and the inside air is introduced to the outside air blowing path side of the blower unit.
- the upper air passage of the air conditioning unit 10 is referred to as an outside air passage (first passage).
- the inside air introduction port for introducing inside air into the inside air blowing path is provided in the blower unit.
- a second centrifugal multiblade fan that introduces the inside air from the inside air introduction port and blows it out to the lower air passage of the air conditioning unit 10 is arranged on the inside air blowing path side in the inside / outside air introduction box. Therefore, the inside air is introduced to the inside air blowing path side of the blower unit.
- the lower air passage of the air conditioning unit 10 is referred to as an inside air passage (second passage).
- the first and second centrifugal multiblade fans (sirocco fans) of the present embodiment constitute a blower together with an electric motor that drives the first and second centrifugal multiblade fans.
- the air conditioning unit 10 constitutes a vehicle air conditioning unit, and is arranged in the form shown in FIG. 1 with respect to the longitudinal direction of the vehicle and the vertical direction of the vehicle at a substantially central portion below the instrument panel in the passenger compartment. Has been.
- the air conditioning unit 10 includes an evaporator (cooling heat exchanger) 12 and a heater core (heating heat exchanger) 13 in a casing 11.
- the evaporator 12 has a flat shape in which the length in the front-rear direction is shorter than the length in the vertical direction and the length in the longitudinal direction extends in the left-right direction and the vertical direction.
- the evaporator 12 is disposed so as to straddle the outside air passage and the inside air passage in the casing 11.
- the evaporator 12 absorbs the latent heat of evaporation of the refrigerant in the refrigeration cycle from the air and cools the air.
- the heater core 13 is disposed so as to straddle the outside air passage and the inside air passage in the casing 11 in the lower air flow of the evaporator 12.
- the heater core 13 has a flat shape in which the length in the front-rear direction is shorter than the length in the vertical direction and the length in the longitudinal direction extends in the left-right direction.
- the heater core 13 is disposed obliquely with respect to the vertical direction so that the lower end is positioned in front of the upper end.
- the heater core 13 reheats the cold air that has passed through the evaporator 12.
- High-temperature engine coolant (hot water) flows inside the heater core 13, and the heater core 13 heats the air using the engine coolant as a heat source.
- a bypass passage 14 a is provided above the heater core 13 in the outside air passage of the air conditioning unit 10.
- the bypass passage 14a allows the cool air flowing out of the evaporator 12 to flow through the heater core 13 toward the face opening 15a.
- an air mix door 16a is provided upstream of the bypass passage 14a and the air flow of the heater core 13.
- a slide door that is slid by an electric motor is used.
- the air mix door 16a changes the ratio of the amount of air passing through the bypass passage 14a and the amount of air passing through the heater core 13 by sliding movement in the outside air passage.
- a bypass passage 14 b is provided below the heater core 13 in the inside air passage of the air conditioning unit 10.
- the bypass passage 14b is a passage through which the cool air flowing out of the evaporator 12 flows to the foot opening 15b, bypassing the heater core 13.
- the air mix door 16b of the present embodiment a slide door that is slid by an electric motor is used.
- the air mix door 16b changes the ratio of the amount of air passing through the bypass passage 14b and the amount of air passing through the heater core 13 in the inside air passage by sliding movement.
- the casing 11 forms an air passage through which air flows toward the passenger compartment.
- the casing 11 is made of a resin-molded product, such as polypropylene, having a certain degree of elasticity and excellent strength.
- An outer airflow inlet (in other words, an upper air inlet) 17 a and an inner airflow inlet (in other words, a lower air inlet) 17 b are provided on the front side of the casing 11.
- the outside air flow inlet 17a guides outside air blown from the above-described blower unit to an outside air passage described later.
- the internal air flow inlet 17b guides the internal air blown from the above-described blower unit to an internal air passage which will be described later.
- the inner airflow inlet 17a and the inner airflow inlet 17b are also collectively referred to as air inlets 17a and 17b.
- partition plates 20, 21, and 22 are provided in the casing 11.
- the partition plates 20, 21, and 22 separate the inside of the casing 11 into an outside air passage and an inside air passage.
- the partition plate 20 is disposed upstream of the air flow of the evaporator 12, and partitions the outer air flow inlet 17a and the inner air flow inlet 17b.
- the partition plate 21 is disposed between the evaporator 12 and the heater core 13 in the air flow direction.
- the partition plate 21 includes plate portions 21a and 21b, and is formed in an L shape when viewed from the left-right direction. Specifically, the plate portion 21a is inclined so as to go downward as it goes to the rear side. Thereby, the board part 21a comprises the cold wind guide which guides the air which passed the evaporator 12 below in an inside air channel
- the plate portion 21b is disposed on the rear side of the plate portion 21a and is orthogonal to the plate portion 21a. That is, the plate part 21b protrudes obliquely upward from the plate part 21a.
- the plate portion 21b constitutes a cold air guide that guides the air that has passed through the evaporator 12 upward in the outside air passage.
- the partition plate 22 (first partition plate) is a two-layer partition plate and is disposed on the downstream side of the air flow of the heater core 13.
- the partition plate 22 divides the casing 11 into an outside air passage and an inside air passage located below the outside air passage, and includes plate portions 22a and 22b.
- the plate portion 22a is formed in a plate shape that extends in the left-right direction, and is inclined so as to go upward as it goes rearward.
- the plate portion 22b is formed in a plate shape extending in the left-right direction on the rear side of the plate portion 22a, and is inclined so as to go downward as it goes rearward.
- An opening (first opening) 30 is formed on the rear side of the partition plate 22 in the casing 11.
- the opening 30 is located between the partition plate 22 and the rear wall 40 of the casing 11 and communicates the outside air passage and the inside air passage.
- the rear wall 40 of the casing 11 is formed above the foot opening 30 described later.
- a partition plate 23 (second partition plate) formed in a plate shape extending in the left-right direction is provided above the partition plate 22.
- the partition plate 23 further divides the outside air passage into an upper side and a lower side on the downstream side of the air flow of the heater core 13.
- the partition plate 22 and the partition plate 23 constitute a hot air passage (third passage) 25 through which the hot air blown from the heater core 13 is circulated rearward in the outside air passage.
- the partition plates 22 and 23 are configured such that the opening area of the hot air inlet 25a of the hot air passage 25 is larger than the opening area of the hot air outlet 25b of the hot air passage 25.
- the partition plate 23 includes plate portions 23a and 23b formed in a plate shape.
- the plate part 23a is inclined so as to go downward as it goes backward.
- the plate portion 23b is disposed on the rear side of the plate portion 23a, and is inclined so as to go downward as it goes rearward.
- the inclination angle of the plate part 23a is larger than the inclination angle of the plate part 23b.
- the inclination angle is an angle formed by the plate portions 23a and 23b in the clockwise direction with respect to the front-rear direction.
- the plate portions 23a and 23b of the partition plate 23 are arranged so that the cross-sectional area of the hot air passage 25 gradually decreases toward the rear.
- the plate portions 23a and 23b of the partition plate 23 guide the warm air that has passed between the plate portions 23a and 23b downward (that is, on the foot opening 15b side).
- a guide plate 24 is provided above the partition plate 23 in the casing 11.
- the guide plate 24 extends in the left-right direction and is formed in a plate shape that extends upward and forward from the rear side of the partition plate 23. That is, the guide plate 24 is disposed so as to be inclined forward with respect to the vertical direction.
- the guide plate 24 guides the warm air blown from the warm air outlet 25b of the warm air passage 25 toward the face opening 15a.
- an open end forming portion 26 is provided between the rear side of the partition plate 23 and the rear side of the guide plate 24.
- the opening end forming portion 26 forms an opening (second opening) 31 with the rear wall 40.
- the opening end forming portion 26 is provided between the end portion on the opening portion 31 side of the partition plate 23 and the guide plate 24 to form the opening portion 31.
- the opening end forming portion 26 is formed in an arc shape that is convex forward and upward (see FIG. 2).
- the opening end forming portion 26 includes a first end portion 26a on the partition plate 23 side and a second end portion 26b on the guide plate 24 side.
- the door body 50a of the mode door (switching door) 50 rotates to move between the first end portion 26a and the second end portion 26b with the opening 30 opened and the opening 31 closed (see FIG. 2).
- the opening end forming portion 26 and the door body 50a becomes a constant size.
- a plate door is used as the mode door 50 of the present embodiment. More specifically, the mode door 50 of the present embodiment is a so-called “butterfly door” in which a rotation shaft 50b is disposed at the center of a door body 50 formed in a plate shape.
- the mode door 50 is not limited to a butterfly door, and may be a so-called “cantilever door” in which a rotating shaft is provided on one end of a plate-like door body (in other words, a plate door body). Good.
- the distance L1 between the upper side of the air outflow surface 13a of the heater core 13 and the partition plate 23 is greater than the distance between the partition plate 22 and the partition plate 23 of the air outflow surface 13a of the heater core 13.
- the distance L2 is longer.
- the distance L2 between the partition plate 22 and the partition plate 23 is longer than the distance L1 between the upper end of the air outflow surface 13a and the partition plate 23.
- the air outflow surface 13 a is a surface from which warm air is blown out from the heater core 13.
- the air outflow surface 13a is a region excluding the portion of the heater core 13 that is covered with the support members 13b and 13c (see FIG. 3) on the downstream surface of the air flow.
- the support members 13b and 13c are members that support the heater core 13 from above and below.
- the partition plate 23, the open end forming portion 26, and the guide plate 24 overlap the upper region of the air outflow surface 13a of the heater core 13 in the vertical direction.
- an air outlet 28 is formed that blows warm air that has passed above the partition plate 23 of the heater core 13 toward the defroster opening 15 c.
- the warm air blown out from the air outlet 28 is guided forward and upward by the guide plate 24.
- a defroster opening 15c is provided above the heater core 13 in the casing 11 of FIG.
- the defroster opening 15 c is opened on the upper side of the air conditioning unit 10.
- the defroster opening 15c communicates with the defroster outlet through a duct.
- the defroster outlet blows conditioned air on the inner surface of the windshield.
- a mode door 52 that is rotatably supported with respect to the casing 11 is provided above the heater core 13 in the casing 11.
- the mode door 52 opens and closes the defroster opening 15c as it rotates.
- the mode door 52 of the present embodiment is a so-called “cantilever door” in which a rotating shaft is provided on one end side of a plate-like door body.
- a cold air guide 27 is provided in the casing 11 above the air mix door 16a.
- the cold air guide 27 is formed in a plate shape extending rearward from the upper end of the evaporator 12 and extending in the left-right direction.
- the rear side 27a of the cold air guide 27 protrudes downward and rearward.
- a face opening 15a is provided on the rear side of the defroster opening 15c.
- the face opening 15a opens upward.
- the face opening 15a communicates with the face outlet through a duct.
- the face outlet blows air conditioned air toward the upper body of the passenger in the front seat.
- a mode door 51 that is rotatably supported with respect to the casing 11 is provided above the partition plates 22 and 23 in the casing 11.
- the mode door 51 opens and closes the face opening 15a as it rotates.
- the mode door 51 of the present embodiment is a so-called “butterfly door” in which a rotation shaft is provided at the center of a plate-like door body.
- a foot opening 15 b is provided on the rear side of the casing 11.
- the foot opening 15b opens slightly downward.
- the foot opening 15b communicates with the foot outlet through a duct.
- the foot opening 15b blows conditioned air toward the lower half of the passenger in the front seat.
- the foot opening 15 b is located below the opening forming portion 22 c that forms the opening 30 in the partition plate 22.
- the opening forming part 22 c is located on the downstream side of the air flow in the partition plate 22.
- a mode door 50 that is rotatably supported with respect to the casing 11 is provided behind the partition plates 22 and 23 in the casing 11.
- the mode door 50 closes any one of the openings 30, 31 and the foot opening 15b, and opens the remaining two openings.
- the mode doors 50, 51, and 52 of the present embodiment are each connected to a servo motor via a link mechanism (not shown).
- the lower wall 41 formed below the foot opening 15 b in the casing 11 is provided below the heater core 13.
- the rear wall 40 in the casing 11 is inclined forward as it approaches the face opening 15a from the foot opening 15b. This guides the air that has passed through the opening 31 toward the face opening 15a.
- outside air flows from the blower unit to the outside air passage of the casing 11 through the outside air inlet 17a.
- the inside air flows from the blower unit to the inside air passage of the casing 11 through the inside air flow inlet 17b.
- the outside air flowing through the outside air passage in the casing 11 is cooled by the evaporator 12.
- cold air is blown out from the evaporator 12 in the outside air passage.
- the inside air flowing through the inside air passage in the casing 11 is cooled by the evaporator 12. For this reason, cold air is blown out from the evaporator 12 in the inside air passage.
- the mode doors 50, 51, 52 are driven to perform the face mode, the bi-level mode, and the foot mode.
- Bi-level mode In the bi-level mode, as shown in FIG. 1, the mode door 52 closes the defroster opening 15c, and the mode door 51 opens the face opening 15a. The mode door 50 closes the opening 31 and opens the opening 30 and the foot opening 15b.
- the cold air that has flowed out of the evaporator 12 and then passed through the bypass passage 14b flows upward along the lower wall 41 as indicated by an arrow A1.
- the warm air blown out from the heater core 13 is guided by the partition plate 22 and flows backward and downward as indicated by an arrow A2.
- the hot air and the cold air are mixed and blown into the vehicle interior through the foot opening 15b as indicated by arrow A3 as conditioned air.
- the warm air flowing in the warm air passage 25 formed between the partition plates 22 and 23 is directed toward the foot opening 15b as indicated by an arrow A4. Flowing. The warm air is guided into the foot opening 15b by the partition plate 23 and the mode door 30, mixed with the mixed air, and then blown out from the foot opening 15b as conditioned air.
- the warm air that passes through the evaporator 12 and the heater core 13 and is blown out from the upper side of the partition plate 23 through the air outlet 28 is guided by the guide plate 24 and flows upward as indicated by an arrow A5.
- the cold air that has flowed out of the evaporator 12 and then passed through the bypass passage 14a flows backward and slightly downward by the cold air guide 27 as indicated by an arrow A6.
- the cold air is mixed with warm air that is guided by the partition plate 23 and flows upward, and is blown into the vehicle interior through the face opening 15a as indicated by an arrow A7 as conditioned air.
- the conditioned air is blown out from the face opening 15a and the foot opening 15b.
- the mode door 52 slightly opens the defroster opening 15c, and the mode door 51 slightly opens the face opening 15a.
- the mode door 50 closes the opening 30 and opens the opening 31 and the foot opening 15b.
- the warm air that has passed through the evaporator 12 and the heater core 13 flows in the warm air passage 25 formed between the partition plate 22 and the partition plate 23.
- the warm air is guided by the rear wall 40 and the guide plate 24 and flows toward the face opening 15a and the defroster opening 15c as indicated by an arrow A4a.
- the cold air that has flowed out of the evaporator 12 and then passed through the bypass passage 14a flows backward and slightly downward by the cold air guide 27 as indicated by an arrow A6.
- the cold air is mixed with the hot air that is guided by the rear wall 40 and the guide plate 24 and flows upward, and becomes air-conditioned air.
- a part of this conditioned air flows to the face opening 15a as indicated by an arrow A7a.
- the remainder of the conditioned air flows to the defroster opening 15c as shown by arrow A7b.
- the conditioned air is blown out from the face opening 15a, the foot opening 15b, and the defroster opening 15c.
- the mode door 52 closes the defroster opening 15c, and the mode door 51 opens the face opening 15a.
- the mode door 50 opens the openings 30 and 31 and closes the foot opening 15b.
- the cold air that has flowed out of the evaporator 12 and then passed through the bypass passage 14b is guided by the lower wall 41, the rear wall 40, and the guide plate 24 and is directed toward the face opening 15a as indicated by an arrow A1a. Flowing.
- the hot air flowing through the hot air passage 25 as indicated by the arrow A4a merges with the cold air flowing as indicated by the arrow A1a.
- the warm air blown out from the outlet 28 is guided by the guide plate 24 and flows upward as indicated by the arrow A5a, and flows into the cold air flowing as indicated by the arrow A1a.
- the cold air flowing out of the evaporator 12 in the outside air passage is guided by the cold air guide 27 after passing through the bypass passage 14a, flows as shown by an arrow A6, and merges with the cold air flowing as shown by an arrow A1a.
- the cool air and the warm air merge and flow toward the face opening 15a as the conditioned air.
- the conditioned air is blown out from the face opening 15a into the vehicle interior.
- the casing 11 has the face opening 15a and the foot opening 15b provided below the face opening 15a.
- the casing 11 forms a passage for circulating air toward the face opening 15a and the foot opening 15b.
- the heater core 13 is disposed in the casing 11 and heats the cold air from the evaporator 12.
- the partition plate 22 is disposed below the face opening 15 a in the casing 11, and partitions the downstream side of the air flow of the heater core 13 into an outside air passage and an inside air passage.
- the opening 30 is arranged on the downstream side of the partition plate 22 in the air flow, and communicates the upper side and the lower side of the partition plate 22.
- the foot opening 15b is disposed below the opening forming portion 22c that forms the opening 30 in the partition plate 22.
- the partition plate 23 is disposed above the partition plate 22 in the casing 11, and forms a warm air passage 25 between the partition plate 22 and the partition plate 22 on the downstream side of the air flow of the heater core 13.
- the opening 31 is located on the downstream side of the air flow of the partition plate 23 and communicates the warm air passage 25 and the inside air passage.
- the mode door 50 In the foot mode (that is, the first air conditioning mode) in which the mode door 50 closes the opening 30 and opens the opening 31, the hot air flowing through the hot air passage 25 is guided toward the face opening 15a.
- the mode door 50 flows through the hot air passage 25 formed between the partition plate 22 and the partition plate 23. Hot air is guided to the foot opening 15 b by the partition plate 23 and the mode door 50. Therefore, the mode door 50 allows a sufficient amount of warm air flowing out of the heater core 13 to flow from the outside air passage through the opening 30 to the foot opening 15b.
- the temperature difference between the temperature of the air blown from the face opening 15a and the temperature of the air blown from the foot opening 15b can be increased compared to the foot mode.
- the temperature of the air blown to the upper body can be lowered, and the temperature of the air blown to the lower half can be increased. That is, head cold foot fever can be implemented.
- controllability of the temperature difference between the temperature of the air blown from the face opening 15a and the temperature of the air blown from the foot opening 15b can be improved in the bi-level mode and the foot mode.
- the air conditioning unit 10 of the present embodiment and the air conditioning unit 10A as a comparative example will be compared with respect to the controllability of the temperature difference.
- 6A and 6B are graphs showing the relationship between the temperature of the air blown into the passenger compartment and the positions of the air mix doors 16a and 16b according to the air conditioning unit 10 of the present embodiment.
- the chain line indicates the relationship between the temperature of the air blown from the face opening 15a and the positions of the air mix doors 16a and 16b.
- a solid line shows the relationship between the temperature of the air blown out from the foot opening 15b and the positions of the air mix doors 16a and 16b.
- FIG. 6A shows the relationship in the bi-level mode
- FIG. 6B shows the relationship in the foot mode.
- FIG. 7A and 7B are graphs showing the relationship between the temperature of the air blown into the vehicle compartment and the positions of the air mix doors 16a and 16b in the air conditioning unit 10A as a comparative example.
- the chain line indicates the relationship between the temperature of the air blown from the face opening 15a and the positions of the air mix doors 16a and 16b.
- a solid line shows the relationship between the temperature of the air blown out from the foot opening 15b and the positions of the air mix doors 16a and 16b.
- FIG. 7A shows the relationship in the bi-level mode
- FIG. 7B shows the relationship in the foot mode.
- the air conditioning unit 10A as a comparative example is obtained by removing the partition plates 21 and 22, the guide plate 24, and the opening end forming portion 26 from the air conditioning unit 10 of the present embodiment.
- the temperature difference between the temperature of the air blown from the face opening 15a and the temperature of the air blown from the foot opening 15b is larger in the bilevel mode than the air conditioning unit 10A.
- the cold air that has passed through the bypass passage 14b in the inside air passage is guided by the lower wall 41 and the mode door 50 and flows upward and forward as indicated by an arrow A1a.
- a part of the cold air may flow toward the heater core 13 above the partition plate 22 and be reheated as indicated by an arrow E1.
- the upper side of the partition plate 22 of the heater core 13 overlaps the partition plates 21 and 22, the guide plate 24, and the open end forming portion 26 in the vertical direction. For this reason, it is possible to suppress the cool air flowing from the bypass passage 14 b from flowing toward the heater core 13 on the upper side of the partition plate 22.
- the partition plate 23 is formed between the partition plate 22 and the partition plate 23 so that the cross-sectional area of the hot air passage 25 decreases as the distance from the heater core 13 increases. For this reason, the wind speed of the warm air passing through the warm air passage 25 can be increased. Therefore, the warm air from the warm air passage 25 can be reliably passed through the opening 30 to the foot opening 15b.
- the partition plate 23 is formed so as to approach the foot opening 15b as the distance from the heater core 13 increases. Therefore, the warm air flowing through the warm air passage 25 can be more reliably guided to the foot opening 15b.
- the dimension L2 between the partition plate 22 and the partition plate 23 of the air outflow surface 13a is larger than the dimension L1 between the upper side of the air outflow surface 13a of the heater core 13 and the partition plate 23. It is getting bigger. Therefore, the amount of warm air passing between the partition plate 22 and the partition plate 23 in the air outflow surface 13a is larger than the amount of warm air passing between the upper side of the air outflow surface 13a and the partition plate 23. . For this reason, a lot of warm air can be flowed from the warm air passage 25 to the foot opening 15b. Therefore, the temperature difference between the temperature of the air blown from the face opening 15a and the temperature of the air blown from the foot opening 15b can be further increased.
- the opening end forming portion 26 has a first end portion 26 a connected to the partition plate 23 and a second end portion 26 b connected to the guide plate 24.
- the clearance between the door main body 50a and the open end forming portion 26 becomes a constant size. Therefore, even if the position of the door body 50a on the opening end forming portion 26 side changes between the first end portion 26a and the second end portion 26b in a state where the mode door 50 closes the opening 31, A clearance becomes a fixed magnitude
- the guide plate 24 is inclined upward as it goes from the rear to the front. For this reason, the warm air which passed the upper side of the partition plate 23 among the heater cores 13 is guided so that it may flow upwards. Therefore, it becomes easy to join the said warm air with the cold wind which flows through the bypass channel
- the cool air that has passed through the bypass passage 14b merges with the warm air at three locations indicated by reference numerals C1, C2, and C3. For this reason, the mixability of the cold air and the hot air can be improved.
- C1 is a point where the hot air blown out from the blower outlet 28 and the cold air are mixed as shown by an arrow A5a.
- C2 is a point where hot air and cold air blown out from between the partition plates 22 and 23 in the heater core 13 are mixed as indicated by an arrow A4a.
- C3 is a point where hot air blown from the lower side of the partition plate 22 in the heater core 13 and cold air are mixed as indicated by an arrow A2a.
- the cold air that has passed through the bypass passage 14b in a state where the mode door 50 closes the opening 31 bypasses the mode door 50 and faces the face opening 15a. An example in which the flow is performed will be described.
- FIG. 9 shows a cross-sectional view of the air conditioning unit 10 of the second embodiment.
- FIG. 10 is a sectional view taken along line XX in FIG.
- the air conditioning unit 10 of the present embodiment is provided with cold air bypass passages 60a and 60b and guide plates 61a and 61b.
- the cold air bypass passages 60 a and 60 b are passages for allowing the cold air that has passed through the bypass passage 14 b to flow upward by bypassing the mode door 50 with the mode door 50 closing the opening 31.
- the cold air bypass passage 60 a is configured between the right wall 11 a and the mode door 50.
- the cold air bypass passage 60 b is configured between the left wall 11 a and the mode door 50.
- the right wall 11 a forms the right wall of the casing 11.
- the left wall 11 b forms the left wall of the casing 11.
- the guide plates 61 a and 61 b are arranged on the upstream side of the air flow of the mode door 50 in the casing 11.
- the guide plate 61a is disposed on the right side in the casing 11 and forms a cold air passage 62a with the right wall 11a.
- the cold air passage 62a guides a part of the cold air blown from the evaporator 12 to the cold air bypass passage 60a.
- the guide plate 61b is disposed on the left side in the casing 11, and forms a cold air passage 62b between the guide plate 61b and the left wall 11b.
- the cold air passage 62b guides a part of the cold air blown from the evaporator 12 to the cold air bypass passage 60b.
- the cool air blown from the evaporator 12 flows toward the face opening 15a through the cold air passages 62a and 62b. be able to. Therefore, the temperature of the air blown out from the face opening 15a can be lowered. Thereby, the temperature difference in the bi-level mode and the temperature difference in the foot mode can be increased.
- the temperature difference is a temperature difference between the temperature of air blown from the face opening 15a and the temperature of air blown from the foot opening 15b.
- the clearance between the opening end forming portion 26 and the mode door 50 (door body 50a) is constant even when the position of the mode door 50 changes with the mode door 50 closing the opening 31.
- the example in which the opening end forming portion 26 is formed so as to become is described.
- the clearance between the open end forming portion 26 and the mode door 50 varies depending on the stop position of the mode door 50. Specifically, in the present embodiment, when a plurality of stop positions at which the door body 50a stops are set between the first end portion 26a and the second end portion 26b of the opening end forming portion 26, a plurality of stop positions are set. The clearances between the door body 50a and the open end forming portion 26 are different.
- FIG. 11 is a cross-sectional view of the air conditioning unit 10 of the present embodiment and is a diagram showing a bi-level mode.
- the shape of the opening end forming portion 26 is different between the air conditioning unit 10 of the present embodiment and the air conditioning unit 10 of the first embodiment.
- the open end forming portion 26 of this embodiment includes step portions 260 and 261.
- the step portion 260 is connected to the partition plate 23, and the step portion 261 is connected to the guide plate 24.
- the clearance C2 between the stepped portion 260 and the door main body 50a is smaller than the clearance C3 between the stepped portion 261 and the door main body 50a.
- the mode door 50 closes the opening 31 with the door body 50a of the mode door 50 facing the stepped portion 260 of the opening end forming portion 26.
- the mode door 50 closes the opening 31 with the door body 50a of the mode door 50 facing the step 261 of the opening end forming portion 26.
- the open end forming portion 26 includes the step portions 260 and 261.
- the mode door 50 has first and second stop positions corresponding to the step portions 260 and 261. Then, the clearance C3 in the second bilevel mode is larger than the clearance C2 in the first bilevel mode. Therefore, in the second bilevel mode, the amount of hot air that flows out of the hot air passage 25 and passes between the open end forming portion 26 and the mode door 50 is increased as compared with the first bilevel mode.
- the temperature difference is a temperature difference between the temperature of air blown from the face opening 15a and the temperature of air blown from the foot opening 15b.
- a new partition plate is disposed between the partition plate 22 and the partition plate 23 in the first embodiment.
- FIG. 12 shows a cross-sectional view of the air conditioning unit 10 of the fourth embodiment.
- the air conditioning unit 10 of the present embodiment is obtained by adding a partition plate 29 (third partition plate) to the air conditioning unit 10 of FIG.
- the partition plate 29 is a two-layer partition plate that forms an opening (third opening) 32 with the rear wall 40.
- the partition plate 29 is disposed between the partition plate 22 and the partition plate 23 and is formed in a plate shape that extends in the left-right direction.
- a lower hot air passage (lower passage) 25a is formed between the partition plate 29 and the partition plate 22 to flow the hot air blown from the heater core 13 to the foot opening 15b.
- an upper hot air passage (upper passage) 25b for flowing the hot air blown from the heater core 13 to the foot opening 15b is formed.
- the partition plate 29 is disposed between the partition plate 22 and the partition plate 23, and divides the hot air passage 25 above and below the lower passage 25a and the upper passage 25b.
- the partition plate 29 includes plate portions 29a and 29b.
- the plate portion 29a is inclined so as to go downward as it goes backward.
- the plate portion 29b is disposed on the rear side of the plate portion 29a.
- the plate part 29b is inclined so as to go downward as it goes backward.
- the inclination angle of the plate portion 29b is larger than the inclination angle of the plate portion 29a.
- the inclination angle is an angle formed by the plate portions 29a and 29b in the clockwise direction with respect to the front-rear direction.
- the protruding portion 29c is disposed on the rear side of the plate portion 29b and protrudes toward the partition plate 23.
- the protrusion 29c constitutes an opening forming portion that forms the opening 32, and restricts the air outlet of the upper hot air passage 25b between the partition plate 23 and the partition plate 29. For this reason, the warm air inlet is larger than the warm air outlet in the upper warm air passage 25b. Further, in the lower hot air passage 25a between the partition plate 22 and the partition plate 29, the hot air inlet is larger than the hot air outlet.
- the guide plate 24 of the present embodiment includes plate portions 24a and 24b as shown in FIG.
- the plate part 24a is inclined upward from the opening 31 side toward the front side.
- the plate part 24b is inclined upward from the plate part 24a side toward the front side.
- the inclination angle of the plate portion 24b is larger than the inclination angle of the plate portion 24a.
- the inclination angle is an angle formed by the plate portions 24a and 24b in the clockwise direction with respect to the front-rear direction.
- the mode door 50 of the present embodiment opens and closes the openings 30, 31, 32, and the foot opening 15b, respectively.
- the mode door 50 closes the opening 31, and opens the openings 30, 32 and the foot opening 15b.
- the warm air that has passed through the upper warm air passage 25b is guided by the partition plate 23 and the mode door 50 and flows to the foot opening 15b.
- the warm air flowing out of the heater core 13 and passing through the lower warm air passage 25a is guided by the partition plate 29 and the mode door 50 and flows to the foot opening 15b.
- Hot air from the lower hot air passage 25a and hot air from the upper hot air passage 25b flow to the foot opening 15b.
- the mode door 50 closes the opening 32 and opens the openings 30 and 31 and the foot opening 15b.
- the warm air that has flowed out of the heater core 13 and passed through the upper warm air passage 25b is guided by the rear plate 40 and the guide plate 24 and flows toward the face opening 15a.
- the hot air that has flowed out of the heater core 13 and passed through the lower hot air passage 25a is guided by the partition plate 29 and the mode door 50 and flows to the foot opening 15b.
- the partition plate 29 is disposed between the partition plate 22 and the partition plate 23. Therefore, the temperature difference can be changed between the third bi-level mode in which the mode door 50 closes the opening 31 and the fourth bi-level mode in which the mode door 50 closes the opening 32.
- the temperature difference is a temperature difference between the temperature of air blown from the face opening 15a and the temperature of air blown from the foot opening 15b.
- the openings 30, 31 and the foot opening 15b are opened and closed by the single mode door 50.
- the openings 30, 31 and the foot opening 15b are opened and closed by separate doors.
- FIG. 15 shows a cross-sectional view of the air conditioning unit 10 of the fifth embodiment.
- mode doors 50a and 50b are provided instead of the mode door 50 of FIG.
- the mode door 50a opens one of the openings 30 and 31 and closes one of them.
- the mode door 50b opens and closes the foot opening 15b.
- the mode door 50a is a so-called “cantilever door”, and the mode door 50b is a so-called “butterfly door”.
- the configuration other than the mode doors 50a and 50b is the same as that of the first embodiment, and thus the description thereof is omitted.
- one partition plate 29 is used as the third partition plate in the air conditioning unit 10, but two or more partition plates 29 may be used.
- blower unit either the outside air or the inside air is blown into the outside air passage of the air conditioning unit 10 and the inside air is blown into the inside air passage of the air conditioning unit 10.
- a blower unit that blows outside air or inside air to the air conditioning unit 10 may be used without distinguishing between the outside air passage and the inside air passage.
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Abstract
Description
(第1実施形態)
図1は、第1実施形態における車両空調装置の空調ユニット10の断面図で、バイレベルモードの状態を示す。図1において上、下、前、後の各矢印は、当該車両空調装置を車両に搭載した際の方向を示している。
バイレベルモードでは、図1に示すように、モードドア52がデフロスタ開口部15cを閉じて、モードドア51がフェイス開口部15aを開ける。モードドア50が開口部31を閉じて、開口部30およびフット開口部15bを開ける。
フットモードでは、図4に示すように、モードドア52がデフロスタ開口部15cを若干開き、モードドア51がフェイス開口部15aを若干開く。モードドア50が開口部30を閉じて、開口部31およびフット開口部15bをそれぞれ開く。
フェイスモードでは、図5に示すように、モードドア52がデフロスタ開口部15cを閉じて、モードドア51がフェイス開口部15aを開ける。モードドア50が開口部30、31を開けて、フット開口部15bを閉じる。
(第2実施形態)
本第2実施形態では、上記第1実施形態において、モードドア50が開口部31を閉じた状態で、バイパス通路14bを通過した冷風を、モードドア50をバイパスしてフェイス開口部15aに向けて流すようにした例について説明する。
(第3実施形態)
上記第1実施形態では、モードドア50が開口部31を閉じた状態でモードドア50の位置が変化しても開口端形成部26とモードドア50(ドア本体50a)との間のクリアランスが一定になるように開口端形成部26を形成した例について説明した。本第3実施形態では、モードドア50の停止位置によって開口端形成部26とモードドア50との間のクリアランスが変化する。具体的には、本実施形態では、開口端形成部26の第1端部26aと第2端部26bとの間に、ドア本体50aが停止する停止位置を複数設定した時、複数の停止位置におけるドア本体50aと開口端形成部26との間のクリアランスがそれぞれ相違する。
(第4実施形態)
本第4実施形態では、上記第1実施形態において、仕切り板22と仕切り板23との間に新たな仕切り板を配置する。
(第5実施形態)
上第1~第4実施形態では、開口部30、31、およびフット開口部15bを1つのモードドア50によって開閉した。本第5実施形態では、開口部30、31と、フット開口部15bとをそれぞれ別々のドアによって開閉する。
(他の実施形態)
第4実施形態では、空調ユニット10において、第3仕切り板として仕切り板29を1つ用いたが、仕切り板29を2つ以上用いてもよい。
Claims (13)
- フェイス開口部(15a)と、前記フェイス開口部(15a)よりも上下方向における下方に設けられるフット開口部(15b)とを有して、前記フェイス開口部(15a)および前記フット開口部(15b)に向けて空気を流通させる通路をその内部に形成するケーシング(11)と、
前記ケーシング(11)内に配置されて前記空気を加熱する加熱用熱交換器(13)と、
前記フェイス開口部(15a)の下方に位置して、前記加熱用熱交換器(13)の空気流れ下流側を、第1通路と、第1通路の下方に位置する第2通路とに区画する第1仕切り板(22)と、
前記第1仕切り板(22)の空気流れ下流側に形成されて、前記第1通路と前記第2通路とを連通させる第1の開口部(30)と、
前記加熱用熱交換器(13)の空気流れ下流において前記第1仕切り板(22)の上方に配置され、前記第1通路内において前記第1仕切り板(22)との間に第3通路(25)を形成する第2仕切り板(23)と、
前記第2仕切り板(23)の空気流れ下流側に位置して、前記第2仕切り板(23)の上側と下側とを連通させる第2の開口部(31)と、
前記第1、第2の開口部(30、31)を開閉する切替ドア(50)と、を備え、
前記第1仕切り板(22)のうち前記第1の開口部(30)を形成する開口形成部(22c)よりも下方に前記フット開口部(15b)が位置しており、
前記切替ドア(50)が前記第1の開口部(30)を閉じて前記第2の開口部(31)を開けた第1の空調モードでは、前記第3通路(25)内の空気は、前記フェイス開口部(15a)に向けて流れるようになっており、
前記切替ドア(50)が前記第1の開口部(30)を開けて前記第2の開口部(31)を閉じた第2の空調モードでは、前記第3通路(25)内の空気が、前記第2仕切り板(23)および前記切替ドア(50)によって前記フット開口部(15b)に向けて案内される
車両用空調ユニット。 - 前記第3通路の断面積が、前記加熱用熱交換器(13)から離れるほど小さくなるように前記第2仕切り板(23)が形成されている請求項1に記載の車両用空調ユニット。
- 前記第2仕切り板(23)は、前記加熱用熱交換器(13)から離れるほど前記フット開口部(15b)に近づくように形成されている請求項1または2に記載の車両用空調ユニット。
- 前記加熱用熱交換器(13)は空気流れ下流側に空気流出面(13a)を有し、
前記空気流出面(13a)の上端と前記第2仕切り板(23)との間の距離(L1)よりも、前記第1仕切り板(22)と前記第2仕切り板(23)との間の距離(L2)の方が長くなっている請求項1ないし3のいずれか1つに記載の車両用空調ユニット。 - 前記ケーシング(11)内のうち前記第2仕切り板(23)よりも上側で前記第2の開口部(31)を通過した空気を前記フェイス開口部(15a)に向けて案内するガイド板(24)と、
前記第2仕切り板(23)のうち前記第2の開口部(31)側の端部と前記ガイド板(24)との間に設けられて前記第2の開口部(31)を形成する開口端形成部(26)とをさらに備え、
前記切替ドア(50)は、
板状に形成されているドア本体(50a)と、
前記ドア本体(50a)に設けられて前記ケーシング(11)に対して前記切替ドア(50)を回転自在に支持する軸(50b)とを備えており、
前記ドア本体(50a)は、前記軸(50b)を中心として回転して前記第1、第2の開口部(30、31)を開閉し、
前記ドア本体(50a)は、前記第1の開口部(30)を開けて前記第2の開口部(31)を閉じた状態で、前記開口端形成部(26)のうち前記第2仕切り板(23)側の第1端部(26a)と前記ガイド板(24)側の第2端部(26b)との間を移動するように回転する請求項1ないし4のいずれか1つに記載の車両用空調ユニット。 - 前記ドア本体(50a)の回転に伴って前記開口端形成部(26)の前記第1端部(26a)と前記第2端部(26b)との間を前記ドア本体(50a)が移動する際に、前記ドア本体(50a)と前記開口端形成部(26)との間のクリアランスが一定の大きさになっている請求項5に記載の車両用空調ユニット。
- 前記開口端形成部(26)の前記第1端部(26a)と前記第2端部(26b)との間において、前記ドア本体(50a)が停止する停止位置が複数設定されており、
前記複数の停止位置における前記ドア本体(50a)と前記開口端形成部(26)との間のクリアランスが、それぞれ相違するように前記開口端形成部(26)が形成されている請求項5に記載の車両用空調ユニット。 - 前記開口端形成部(26)は、前記複数の停止位置のそれぞれに対応し、かつ前記ドア本体(50a)との間で前記停止位置毎に相違するクリアランスを形成する複数の段部(260、261)を備える請求項7に記載の車両用空調ユニット。
- 前記第1仕切り板(22)と前記第2仕切り板(23)との間に配置され、前記第3通路を上側通路および下側通路の上下に区画する第3仕切り板(29)と、
前記ケーシング(11)内のうち前記第3仕切り板(29)の空気流れ下流側に形成されて、前記下側通路と上側通路とを連通させる第3の開口部(32)と、をさらに備え、
前記切替ドア(50)は、前記第1、第2、第3の開口部(30、31、32)を開閉するものであり、
前記切替ドア(50)が前記第3の開口部(32)を閉じて前記第1、第2の開口部(30、31)を開けたとき、前記上側通路を流れる空気は、前記フェイス開口部(15a)に向けて流れると共に、
前記下側通路を流れる空気は、前記第1仕切り板(22)および前記切替ドア(50)によってガイドされて前記フット開口部(15b)に向けて流れ、
前記切替ドア(50)が前記第2の開口部(31)を閉じて前記第1、第3の開口部(30、32)を開けたとき、前記下側通路を流れる空気は、前記第3仕切り板(29)および前記切替ドア(50)によって前記フット開口部(15b)に向けて案内されると共に、前記上側通路を流れる空気は、前記第2仕切り板(23)および前記切替ドア(50)によって前記フット開口部(15b)に向けて案内される請求項1ないし8に記載の車両用空調ユニット。 - 前記ケーシング(11)内のうち前記加熱用熱交換器(13)の上方に設けられて前記加熱用熱交換器(13)をバイパスして前記フェイス開口部(15a)に空気を流す第1のバイパス通路(14a)と、
前記加熱用熱交換器(13)のうち前記第1仕切り板(22)の上側を通過する空気量と前記第1のバイパス通路(14a)を通過する空気量との比率を変える第1エアミックスドア(16a)と、
前記ケーシング(11)内のうち前記加熱用熱交換器(13)の下方に設けられて前記加熱用熱交換器(13)をバイパスして前記フット開口部(15b)に空気を流す第2のバイパス通路(14b)と、
前記加熱用熱交換器(13)のうち前記第1仕切り板(22)よりも下側を通過する空気量と前記第2のバイパス通路(14b)を通過する空気量との比率を変える第2エアミックスドア(16b)と、をさらに備える請求項1ないし9のいずれか1つに記載の車両用空調ユニット。 - 前記ケーシング(11)のうち前記加熱用熱交換器(13)の空気流れ上流側に配置されて空気を冷却する冷却熱交換器(12)をさらに備える請求項10に記載の車両用空調ユニット。
- 前記切替ドア(50)が前記第1の開口部(30)を開けて前記第2の開口部(31)を閉じたとき、前記第2のバイパス通路(14b)から前記切替ドア(50)をバイパスして前記フェイス開口部(15a)に向けて流す第3のバイパス通路(60a、60b)をさらに備える請求項11に記載の車両用空調ユニット。
- 前記切替ドア(50)は、前記第1、第2の開口部(30、31)、および前記フット開口部(15b)のうち1つの開口部を閉じて、残りの2つの開口部を開ける請求項1ないし12のいずれか1つに記載の車両用空調ユニット。
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CN201480048912.4A CN105517819B (zh) | 2013-10-21 | 2014-10-09 | 车辆用空调单元 |
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KR102698340B1 (ko) * | 2019-08-23 | 2024-08-26 | 한온시스템 주식회사 | 차량용 공조장치 |
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US10144265B2 (en) | 2018-12-04 |
DE112014004822B4 (de) | 2019-05-02 |
CN105517819B (zh) | 2017-09-19 |
US20160236535A1 (en) | 2016-08-18 |
DE112014004822T5 (de) | 2016-07-21 |
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