EP4673322A1 - Vehicle air conditioner - Google Patents

Vehicle air conditioner

Info

Publication number
EP4673322A1
EP4673322A1 EP24709004.6A EP24709004A EP4673322A1 EP 4673322 A1 EP4673322 A1 EP 4673322A1 EP 24709004 A EP24709004 A EP 24709004A EP 4673322 A1 EP4673322 A1 EP 4673322A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
flow path
seat
blowing air
heating heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24709004.6A
Other languages
German (de)
French (fr)
Inventor
Hisayoshi Yoshizaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Electrification SAS
Original Assignee
Valeo Systemes Thermiques SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP4673322A1 publication Critical patent/EP4673322A1/en
Pending legal-status Critical Current

Links

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 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
    • 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 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
    • 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 devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H2001/00078—Assembling, manufacturing or layout details
    • B60H2001/00092—Assembling, manufacturing or layout details of air deflecting or air directing means inside the device
    • 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 devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H2001/00078—Assembling, manufacturing or layout details
    • B60H2001/00107—Assembling, manufacturing or layout details characterised by the relative position of the heat exchangers, e.g. arrangements leading to a curved airflow
    • 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 devices
    • B60H1/00007—Combined heating, ventilating, or cooling devices
    • B60H1/00021—Air flow details of HVAC devices
    • B60H2001/00185—Distribution of conditionned air
    • B60H2001/002—Distribution of conditionned air to front and rear part of passenger compartment

Definitions

  • the present invention relates to a vehicle air conditioner capable of blowing air to a rear seat.
  • Vehicle air conditioners are mounted on many vehicles to control the temperature in a vehicle interior. Some of the vehicle air conditioners are capable of blowing air to a rear seat. A background art related to such a vehicle air conditioner is disclosed in PTL 1. [0003]
  • the vehicle air conditioner disclosed in PTL 1 includes, in a housing, a cooling heat exchanger capable of cooling blowing air and a heating heat exchanger capable of heating air that has passed through the cooling heat exchanger.
  • a duct is provided behind the heating heat exchanger and extends toward a rear seat to blow air toward passengers sitting in the rear seat.
  • the vehicle air conditioner is usually installed in front of front seats.
  • the duct for blowing air toward the rear seat substantially protrudes to the rear side of the vehicle air conditioner, there is no enough leg room available to passengers sitting in the front seats.
  • FIG. 1 is a schematic view illustrating a vehicle on which a vehicle air conditioner according to an example is mounted .
  • Fig. 2 a schematic view illustrating a vehicle on which a vehicle air conditioner according to an example is mounted .
  • FIG. 2 is a schematic cross-sectional view of the vehicle air conditioner illustrated in FIG. 1. [Fig. 3]
  • Fig. 3 is a cross-sectional view taken along the line 3-3 of Fig . 2.
  • Fig. 4 is a perspective view of the rear-seat blower member illustrated in Fig. 3.
  • Fig. 5 is a perspective view of the rear-seat blower member illustrated in Fig. 3.
  • Fig. 5 is a view illustrating a modified example of the rear-seat blower member illustrated in Fig. 4.
  • front and rear refer to front and rear with reference to a direction of travel of a vehicle on which a vehicle air conditioner is mounted
  • left and right refer to left and right with reference to a passenger in the vehicle.
  • the front direction with respect to the vehicle advancing direction is denoted by Er
  • the rear direction with respect to the vehicle advancing direction is denoted by Rr
  • the left direction that is seen from the passenger is denoted by Le
  • the right direction that is seen from the passenger is denoted by Ri
  • an up direction is denoted by Up
  • Dn a down direction
  • Fig. 1 illustrates a vehicle 10 on which a vehicle air conditioner 20 (hereinafter, referred to as an "air conditioner 20") is mounted.
  • the vehicle 10 is, for example, a passenger vehicle, and includes left and right front seats 12, 12 that are provided in a front part of a vehicle interior VI, and a rear seat 13 that is provided behind the front seats 12, 12 to extend to both ends in the vehicle width direction.
  • the air conditioner 20 is installed in front of the front seats 12, 12 and is used to blow air whose temperature has been controlled to a predetermined temperature toward passengers sitting in the front seats 12, 12 and the rear seat 13.
  • center vent switching portions 15, 15 with which to change whether to blowing air are formed.
  • a rear duct 16 extending toward the rear seat 13 is connected to the air conditioner 20, and air can be sent to the rear seat 13 through the rear duct 16.
  • a rear-seat air blow switching portion 17 with which to change whether to blowing air toward the rear seat 13 is provided.
  • the rear duct 16 may be disposed, for example, to extend rearward along a lower surface of a center console and also extend upward along a rear surface of the center console. Alternatively, it may extend under the floor of the vehicle interior and raised along a B-pillar. Yet alternatively, it may be disposed to branch off at some midpoint so that air can be delivered to the upper body and the lower body of a passenger in the rear seat.
  • Each of the switching sections 14, 15, and 17 is configured with a louver, and the passenger swings operation parts 14a, 15a, and 17a, so that the flow rate of air can be switched from a fully open state to a fully closed state.
  • the air conditioner 20 includes a blower unit 21 that can take in air from the vehicle interior and/or outside the vehicle to blow air, and a temperature control unit 30 that can control the temperature of blowing air delivered from the blower unit 21 to a predetermined temperature. Air delivered from the blower unit 21 toward the left flows in the temperature control unit 30 rearwardly.
  • the blower unit 21 may have a well-known configuration, and contains a blower fan therein, for example.
  • the air conditioner 20 may have a configuration in which the blower unit 21 is located on the left side of the temperature control unit 30.
  • the configuration is appropriately selectable according to the left or right position of a steering wheel and so on.
  • the temperature control unit 30 includes a housing 50 to which blowing air is delivered from the blower unit 21 (see Fig. 1) , a cooling heat exchanger
  • a front-seat temperature adjustment device 34 that is disposed downstream of the heating heat exchanger 33 to control the flow rate of the blowing air passing through the heating heat exchanger 33, a defroster opening/closing door 36, a vent opening/clos ing door 37, and a foot opening/closing door 38 that are disposed downstream of the front-seat temperature adjustment device
  • a rear-seat blower member 41 that extends downward in front of the heating heat exchanger 33 to guide the blowing air that has passed through the heating heat exchanger 33 to the rear seat 13 (see Fig. 1)
  • a rear-seat temperature adjustment device 70 that adjusts the temperature of blowing air sent to the rear seat 13.
  • the housing 50 includes a plurality of parts, for example. More specifically, it includes three parts of parts constituting the left and right sides of the upper part, and a part constituting the lower part. Each of the parts may be an injection-molded product.
  • the housing 50 may include two parts or include four or more parts.
  • Fig. 1 is also referred.
  • the housing 50 is opened to have: a defroster opening 51 through which the blowing air to be delivered to a front windshield passes; vent openings 52, 53, through each of which the blowing air to be delivered to the upper body of the passenger in the front seat 12 passes; a foot opening 54 through which the blowing air to be delivered to feet of the passenger in the front seat 12 passes; and a rear opening 55 through which the blowing air to be delivered to the passenger in the rear seat 13 passes.
  • a defroster opening 51 through which the blowing air to be delivered to a front windshield passes
  • vent openings 52, 53 through each of which the blowing air to be delivered to the upper body of the passenger in the front seat 12 passes
  • a foot opening 54 through which the blowing air to be delivered to feet of the passenger in the front seat 12 passes
  • a rear opening 55 through which the blowing air to be delivered to the passenger in the rear seat 13 passes.
  • the internal space IS has: a cold air flow path CP through which the blowing air that has only passed through the cooling heat exchanger 32 flows; a hot air flow path HP through which the blowing air that has passed through the heating heat exchanger 33 flows; and a mixing flow path MP in which the blowing air that has flowed through the cold air flow path CP and the blowing air that has flowed through the hot air flow path HP are mixed.
  • vent openings 52, 53 are configured with: the side vent opening 52 through which the blowing air blown from the side vent switching section 14 passes; and the center vent opening 53 through which the blowing air blown from the center vent switching section 15 passes.
  • Each of the vent openings 52, 53 does not always have to be formed at two positions at the center and on an outer side in the vehicle width direction.
  • the cooling heat exchanger 32 is provided at a front part of the housing 50 to allow blowing air to pass in substantially a front and rear direction.
  • the blowing air is cooled by heat exchange with a heat transfer medium passing through the inside of the cooling heat exchanger 32.
  • a heat transfer medium passing through the inside of the cooling heat exchanger 32.
  • the fluorocarbon refrigerant or carbon dioxide can be used as the heat medium
  • the heating heat exchanger 33 is provided behind the cooling heat exchanger 32 and is provided such that the blowing air passes therethrough substantially in the up- down direction.
  • the heating heat exchanger 33 includes: a hot water heater 33a in which hot water that has flowed and has been heated through an engine flows; and an electric heater 33b that is heated when energized.
  • the blowing air that has passed through the cooling heat exchanger 32 partially passes through right and left sides of the rearseat blower member 41, and is directed below the heating heat exchanger 33, and flows upward. At this time, the blowing air is heated by the heating heat exchanger 33.
  • the heating heat exchanger 33 does not always have to include two components, which are the hot water heater 33a and the electric heater 33b, and may include only one thereof.
  • a heater using a heat medium other than the hot water may be adopted in the heating heat exchanger.
  • the fluorocarbon refrigerant or carbon dioxide can be used as the heat medium.
  • the front-seat temperature adjustment device 34 includes a front-seat temperature adjustment actuator (not illustrated) that is energized to generate a rotary driving force, a rotary drive unit 34a that includes a pinion gear and is connected to the front-seat temperature adjustment actuator to be rotated, and a door body 34b that slides in substantially the front and rear direction in conjunction with the rotation of the rotary drive unit 34a.
  • the door body 34b includes a rack to engage with the pinion gear.
  • Opening amounts of the cold air flow path CP and the hot air flow path HP are regulated by moving the door body 34b. In this way, a volume of the cold air and a volume of the hot air flowing into the mixing flow path MP are regulated, and a temperature of mixed air thereby becomes the predetermined temperature when the cold air and the hot air are mixed in the mixing flow path MP.
  • the front-seat temperature adjustment device 34 may not include the sliding door but may include a swinging door that is rotatable about a rotational shaft.
  • the defroster opening/clos ing door 36 is configured with a swinging door that can swing to regulate an opening amount of the defroster opening 51.
  • the vent opening/closing door 37 is configured with a swinging door, and due to the swings, the amount of opening of the vent openings 52, 53 (the side vent openings 52 is referred in Fig. 1) can be controlled.
  • the foot opening/closing door 38 is configured with a swinging door that can swing to regulate an opening amount of the foot opening 54.
  • the rear-seat blower member 41 is a duct-shaped member that is located forwardly of the heating heat exchanger 33 and extends in the up and down direction.
  • the rear-seat blower member 41 is formed to have a smaller width of a blower member body portion 41c described later in the left and right direction, than the width of the heating heat exchanger 33 in the left and right direction. Thereby, blowing air that has passed through the cooling heat exchanger 32 can pass the left and right sides of the rearseat blower member 41 to flow toward the heating heat exchanger 33.
  • the upper end of the rear-seat blower member 41 faces a downstream end of the heating heat exchanger 33, and the lower end of the rear-seat blower member 41 faces an upstream end of the rear duct 16.
  • a portion which is a rear face of a rear-seat blower member 41 and faces a cold air flow path CP is formed to have a cold air introduction opening 41a to introduce a cold air .
  • Main elements of the rear-seat blower member 41 are an introduction portion 41b into which the blowing air having passed through the heating heat exchanger 33 is introduced, and a blower member body portion 41c through which the blowing air introduced into the introduction portion 41b flows.
  • a tapered portion 41d is formed between the introduction portion 41b and the blower member body portion 41c, and the width thereof is continuously narrowed from the introduction portion 41b toward the blower member body portion 41c.
  • the rear-seat blower member 41 includes an extending portion 41e extending from the upper and side portions of the introduction portion 41b to the hot air flow path HP.
  • the introduction portion 41b is formed over the left and right of the housing 50.
  • the width W1 of the introduction portion 41b in the vehicle width direction is substantially the same as the width W1 of the heating heat exchanger 33 in the vehicle width direction, and is wider than the width W2 of the blower member body portion 41c.
  • the introduction portion 41b is partially located above the heating heat exchanger 33 and below the rotary drive unit 34a.
  • the introduction portion 41b only needs to have a width larger than that of the blower member body portion 41c, but is not necessarily provided to extend over the left and right of the housing 50. The reason will be described later .
  • the blower member body portion 41c is formed in a duct shape. A position, which faces the cold air flow path CP, of a rear face of the blower member body portion 41c is formed to have a cold air introduction opening 41a.
  • the interior of the blower member body portion 41c is to be a rear-seat hot air passage RH through which the blowing air warmed by the heating heat exchanger 33 passes, and a rear-seat mixed flow path RM that is located downstream of the rear-seat hot air passage RH and is mixed with cold air taken in through the cold air introduction opening 41a to adjust the temperature.
  • the blower member body portion 41c is provided between the cooling heat exchanger 32 and the heating heat exchanger 33.
  • a heat insulating material such as urethane foam is attached around the rear-seat blower member 41 or the rear-seat blower member 41 itself is made of foam resin to improve the thermal insulation, so that it can prevent unintended heat exchange.
  • Such thermal insulation countermeasures may not be necessarily taken, and countermeasures are appropriately selected in consideration of a blow-out temperature of conditioned air blown out of the air conditioner 20, cost, and so on.
  • the attachment position may be an outer surface of the rear-seat blower member 41, or an inner surface thereof facing the rear-seat hot air passage RH.
  • the tapered portion 41d has a curved shape in which a radius of curvature gradually decreases from the introduction portion 41b toward the blower member body portion 41c.
  • the extending portion 41e is a portion extending to the upstream side of a lower end portion 41bl of the introduction portion 41b (a portion extending to the upstream side with respect to the two-dot chain line in FIG. 4) .
  • a part of the extending portion 41e is located above the heating heat exchanger 33 and below the rotary drive unit 34a, together with a part of the introduction portion 41b.
  • the upper surface of the introduction portion 41b and the upper surface of the extending portion 41e are continuous with each other and have a shape along the track of the door body 34b.
  • the extending portion 41e is separated from the heating heat exchanger 33.
  • the extending portion 41e extends to a part of the hot air flow path HP.
  • a rear duct 16 is connected to a lower portion of the rear-seat blower member 41.
  • the rear duct 16 extends downward from the lower end of the rear-seat blower member 41 and extends rearward along the floor surface.
  • the rear-seat blower member 41 may be integrally formed with the housing 50, or may be a member different from the housing 50.
  • FIG. 5 illustrates a rearseat blower member 41X according to a modified example. Components common to those in FIG. 4 are denoted by the same reference numerals. Both ends of the lower end 41bl of the introduction portion 41b of the rear-seat blower member 41X coincide with ends of the upstream side of the tapered portion 41d (see Pl) . In this case, the introduction portion 41b is implemented by the thickness of the wall thickness of the rear-seat blower member 41X.
  • the rear-seat temperature adjustment device 70 includes a rear-seat temperature adjustment actuator 71 that generates a rotary driving force by being energized, and a rear-seat temperature adjustment door 72 that swings by actuating of the rear-seat temperature adjustment actuator 71 and adjusts the mixing ratio of hot air and cold air.
  • the rear-seat temperature adjustment actuator 71 may be a stepping motor, for example.
  • the air conditioner 20 can blow air toward the front seat 12 and the rear seat 13 disposed behind the front seat 12, on each of which a passenger of a vehicle can sit, and in the internal space IS of the housing 50, a cooling heat exchanger 32 capable of cooling the blowing air and a heating heat exchanger 33 capable of heating the blowing air that has passed through the cooling heat exchanger 32 are provided. With reference to the vehicle advancing direction, the heating heat exchanger 33 is provided behind the cooling heat exchanger 32.
  • the cold air flow path CP through which blowing air that has passed only through the cooling heat exchanger 32 flows
  • the hot air flow path HP through which blowing air that has passed through the heating heat exchanger 33 flows
  • the mixing flow path MP in which the blowing air that has flown in the cold air flow path CP and the blowing air that has flown in the hot air flow path HP are mixed.
  • the rear-seat blower member 41 for guiding the blowing air that has passed through the heating heat exchanger 33 to the rear seat 13 is provided.
  • the rear-seat blower member 41 includes the introduction portion 41b into which the blowing air having passed through the heating heat exchanger 33 is introduced, and the blower member body portion 41c, through which the blowing air introduced into the introduction portion 41b flows and which is provided between the cooling heat exchanger 32 and the heating heat exchanger 33.
  • the width of the blower member body portion 41c is narrower than that of the heating heat exchanger 33, and the width of the introduction portion 41b is wider than that of the blower member body portion 41c.
  • Fig. 2 is referred.
  • the rear-seat hot air passage RH is provided between the cooling heat exchanger 32 and the heating heat exchanger 33. Accordingly, it is possible to connect the rear duct 16 and so on, avoiding a lower rear part of the housing 50.
  • the leg room of the passenger in the front seat 12 (see FIG. 1) can be sufficiently secured.
  • the width of the introduction portion 41b in the vehicle width direction is wider than the width of the blower member body portion 41c in the vehicle width direction.
  • warm blowing air can be introduced from a wider range.
  • the predetermined amount of blowing air can be more reliably sent toward the rear seat.
  • the rearseat blower member 41 has the tapered portion 41d, of which a width continuously decreases from the introduction portion 41b toward the blower member body portion 41c, between the introduction portion 41b and the blower member body portion 41c.
  • the air conditioner 20 further includes the front-seat temperature adjustment device 34 capable of adjusting a ratio of the blowing air passing through the cold air flow path CP to the blowing air passing through the hot air flow path HP.
  • the front-seat temperature adjustment device 34 includes the rotary drive unit 34a, and the door body 34b that is driven by the rotary drive unit 34a and is movable between a boundary portion between the cold air flow path CP and the mixing flow path MP and a boundary portion between the hot air flow path HP and the mixing flow path MP. At least a part of the introduction portion 41b is located between the heating heat exchanger 33 and the rotary drive unit 34a.
  • a space between the heating heat exchanger 33 and the rotary drive unit 34a is a dead space in which a part of the door body 34b is usually present. That is, in the area, the hot air does not flow from the hot air flow path HP to the mixing flow path MP.
  • the introduction portion 41b is formed using such a dead space. The introduction portion 41b can be provided while suppressing an increase in the ventilation resistance.
  • the rear-seat blower member 41 has the extending portion 41e that extends from the introduction portion 41b to the hot air flow path HP and guides the blowing air that has passed through the heating heat exchanger 33 to the introduction portion 41b.
  • the air conditioner 20 further includes the front-seat temperature adjustment device 34 capable of adjusting a ratio between the blowing air passing through the cold air flow path CP and the blowing air passing through the hot air flow path HP.
  • the front-seat temperature adjustment device 34 includes the rotary drive unit 34a, and the door body 34b that is driven by the rotary drive unit 34a and is movable between a boundary portion between the cold air flow path CP and the mixing flow path MP and a boundary portion between the hot air flow path HP and the mixing flow path MP. At least a part of the extending portion 41e is located between the heating heat exchanger 33 and the rotary drive unit 34a.
  • a space between the heating heat exchanger 33 and the rotary drive unit 34a is a dead space in which a part of the door body 34b is usually present.
  • the extending portion 41e is formed using such a dead space. The extending portion 41e can be provided while suppressing an increase in the ventilation resistance.
  • the present invention is not limited to the examples as long as operations and effects of the present invention are achieved.
  • the air conditioner according to the present invention is suitable for an air conditioner mounted on a passenger vehicle .

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

Abstract

To provide a vehicle air conditioner that allows sufficient leg room available to passengers sitting in front seats. The vehicle air conditioner includes a housing (50) in which a cooling heat exchanger (32) and a heating heat exchanger (33) are accommodated. A rear-seat blower member (41) is provided between the cooling heat exchanger (32) and the heating heat exchanger (33) to guide the blowing air passing through the heating heat exchanger(33) to a rear seat (13). The rear-seat blower member (41) includes an introduction portion (41b) into which the blowing air having passed through the heating heat exchanger (33) is introduced, and a blower member body portion (41c) through which the blowing air introduced into the introduction portion (41b) flows. The width of the blower member body portion (41c) is narrower than that of the heating heat exchanger (33), and the width of the introduction portion (41b) is wider than that of the blower member body portion (41c).

Description

[DESCRIPTION]
[Title of Invention]
VEHICLE AIR CONDITIONER [Technical Field] [0001]
The present invention relates to a vehicle air conditioner capable of blowing air to a rear seat. [Background Art] [0002]
Vehicle air conditioners are mounted on many vehicles to control the temperature in a vehicle interior. Some of the vehicle air conditioners are capable of blowing air to a rear seat. A background art related to such a vehicle air conditioner is disclosed in PTL 1. [0003]
The vehicle air conditioner disclosed in PTL 1 includes, in a housing, a cooling heat exchanger capable of cooling blowing air and a heating heat exchanger capable of heating air that has passed through the cooling heat exchanger. A duct is provided behind the heating heat exchanger and extends toward a rear seat to blow air toward passengers sitting in the rear seat.
[Citation List] [Patent Literature] [0004] [PTL 1]
JP2010-36738A
[Summary of Invention]
[Technical Problem]
[0005]
The vehicle air conditioner is usually installed in front of front seats. In a case where the duct for blowing air toward the rear seat substantially protrudes to the rear side of the vehicle air conditioner, there is no enough leg room available to passengers sitting in the front seats. [0006]
An object of the present invention is to provide a vehicle air conditioner that allows sufficient leg room available to passengers sitting in front seats. [Solution to Problem] [0007]
In the following description, reference numerals in the accompanying drawings are appended in parentheses to facilitate understanding of the invention, but the invention is not limited to illustrated embodiments. [0008]
According to the present disclosure, a vehicle air conditioner can blow air toward a front seat (12) and a rear seat (13) located behind the front seat (12) , on each of which a passenger of a vehicle can sit, wherein in an internal space (IS) of a housing (50) , a cooling heat exchanger (32) capable of cooling a blowing air and a heating heat exchanger (33) capable of heating the blowing air that has passed through the cooling heat exchanger (32) are provided, the heating heat exchanger (33) is provided rearwardly of the cooling heat exchanger (32) with reference to a travel direction of the vehicle, and a cold air flow path (CP) through which the blowing air that has passed only through the cooling heat exchanger (32) flows, a hot air flow path (HP) through which the blowing air that has passed through the heating heat exchanger (33) flows, and a mixing flow path (MP) in which the blowing air that has passed through the cold air flow path (CP) and the blowing air that has passed through the hot air flow path (HP) are mixed together are formed in the internal space (IS) , wherein with reference to a direction in which the blowing air flows, a rear-seat blower member (41) is provided downstream of the heating heat exchanger (33) to guide the blowing air that has passed through the heating heat exchanger ( 33 ) to the rear seat (13) , the rear-seat blower member (41) includes an introduction portion (41b) into which the blowing air having passed through the heating heat exchanger (33) is introduced, and a blower member body portion (41c) through which the blowing air introduced into the introduction portion (41b) flows and which is provided between the cooling heat exchanger (32) and the heating heat exchanger (33) , with reference to a direction along the width of the vehicle, the blower member body portion (41c) is narrower in width as compared with the heating heat exchanger (33) , and the introduction portion (41b) is wider in width as compared with the blower member body portion (41c) . [Advantageous Effects of Invention] [0009]
According to the present invention, it is possible to provide a vehicle air conditioner that allows sufficient leg room available to passengers sitting in front seats. [Brief Description of Drawings] [0010] [Fig. 1]
Fig. 1 is a schematic view illustrating a vehicle on which a vehicle air conditioner according to an example is mounted . [Fig. 2]
FIG. 2 is a schematic cross-sectional view of the vehicle air conditioner illustrated in FIG. 1. [Fig. 3]
Fig. 3 is a cross-sectional view taken along the line 3-3 of Fig . 2.
[Fig. 4]
Fig. 4 is a perspective view of the rear-seat blower member illustrated in Fig. 3. [Fig. 5]
Fig. 5 is a view illustrating a modified example of the rear-seat blower member illustrated in Fig. 4. [Description of Embodiments] [0011]
Embodiments of the present invention will be described below based on the accompanying drawings . In the description, front and rear refer to front and rear with reference to a direction of travel of a vehicle on which a vehicle air conditioner is mounted, and left and right refer to left and right with reference to a passenger in the vehicle. In the drawings, the front direction with respect to the vehicle advancing direction is denoted by Er, the rear direction with respect to the vehicle advancing direction is denoted by Rr, the left direction that is seen from the passenger is denoted by Le, the right direction that is seen from the passenger is denoted by Ri, an up direction is denoted by Up, and a down direction is denoted by Dn .
[0012]
<Examples> Fig. 1 is referred. Fig. 1 illustrates a vehicle 10 on which a vehicle air conditioner 20 (hereinafter, referred to as an "air conditioner 20") is mounted. The vehicle 10 is, for example, a passenger vehicle, and includes left and right front seats 12, 12 that are provided in a front part of a vehicle interior VI, and a rear seat 13 that is provided behind the front seats 12, 12 to extend to both ends in the vehicle width direction. [0013]
The air conditioner 20 is installed in front of the front seats 12, 12 and is used to blow air whose temperature has been controlled to a predetermined temperature toward passengers sitting in the front seats 12, 12 and the rear seat 13. On a right end and a left end in the vehicle width direction in front of the front seats 12, side vent switching portions 14, 14 with which to change whether to blowing air are formed. In the vicinity of the center in the vehicle width direction in front of the front seats 12, center vent switching portions 15, 15 with which to change whether to blowing air are formed. [0014]
A rear duct 16 extending toward the rear seat 13 is connected to the air conditioner 20, and air can be sent to the rear seat 13 through the rear duct 16. At a rear end or a downstream end of the rear duct 16, a rear-seat air blow switching portion 17 with which to change whether to blowing air toward the rear seat 13 is provided.
[0015]
The rear duct 16 may be disposed, for example, to extend rearward along a lower surface of a center console and also extend upward along a rear surface of the center console. Alternatively, it may extend under the floor of the vehicle interior and raised along a B-pillar. Yet alternatively, it may be disposed to branch off at some midpoint so that air can be delivered to the upper body and the lower body of a passenger in the rear seat.
[0016]
Each of the switching sections 14, 15, and 17 is configured with a louver, and the passenger swings operation parts 14a, 15a, and 17a, so that the flow rate of air can be switched from a fully open state to a fully closed state. [0017]
The air conditioner 20 includes a blower unit 21 that can take in air from the vehicle interior and/or outside the vehicle to blow air, and a temperature control unit 30 that can control the temperature of blowing air delivered from the blower unit 21 to a predetermined temperature. Air delivered from the blower unit 21 toward the left flows in the temperature control unit 30 rearwardly. [0018] The blower unit 21 may have a well-known configuration, and contains a blower fan therein, for example.
[0019]
The air conditioner 20 may have a configuration in which the blower unit 21 is located on the left side of the temperature control unit 30. The configuration is appropriately selectable according to the left or right position of a steering wheel and so on.
[0020]
Fig. 2 is referred. The temperature control unit 30 includes a housing 50 to which blowing air is delivered from the blower unit 21 (see Fig. 1) , a cooling heat exchanger
32 that is provided in an internal space IS of the housing 50 and can cool the blowing air, a heating heat exchanger
33 that can heat air that has passed through the cooling heat exchanger 32, a front-seat temperature adjustment device 34 that is disposed downstream of the heating heat exchanger 33 to control the flow rate of the blowing air passing through the heating heat exchanger 33, a defroster opening/closing door 36, a vent opening/clos ing door 37, and a foot opening/closing door 38 that are disposed downstream of the front-seat temperature adjustment device
34 to switch opening/closing of openings 51 to 54 (see Fig. 1 for side vent openings 52) , a rear-seat blower member 41 that extends downward in front of the heating heat exchanger 33 to guide the blowing air that has passed through the heating heat exchanger 33 to the rear seat 13 (see Fig. 1) , and a rear-seat temperature adjustment device 70 that adjusts the temperature of blowing air sent to the rear seat 13.
[0021]
The housing 50 includes a plurality of parts, for example. More specifically, it includes three parts of parts constituting the left and right sides of the upper part, and a part constituting the lower part. Each of the parts may be an injection-molded product. The housing 50 may include two parts or include four or more parts. [0022]
Fig. 1 is also referred. The housing 50 is opened to have: a defroster opening 51 through which the blowing air to be delivered to a front windshield passes; vent openings 52, 53, through each of which the blowing air to be delivered to the upper body of the passenger in the front seat 12 passes; a foot opening 54 through which the blowing air to be delivered to feet of the passenger in the front seat 12 passes; and a rear opening 55 through which the blowing air to be delivered to the passenger in the rear seat 13 passes. [0023]
The internal space IS has: a cold air flow path CP through which the blowing air that has only passed through the cooling heat exchanger 32 flows; a hot air flow path HP through which the blowing air that has passed through the heating heat exchanger 33 flows; and a mixing flow path MP in which the blowing air that has flowed through the cold air flow path CP and the blowing air that has flowed through the hot air flow path HP are mixed.
[0024]
The vent openings 52, 53 are configured with: the side vent opening 52 through which the blowing air blown from the side vent switching section 14 passes; and the center vent opening 53 through which the blowing air blown from the center vent switching section 15 passes. [0025]
Each of the vent openings 52, 53 does not always have to be formed at two positions at the center and on an outer side in the vehicle width direction. [0026]
Fig. 2 is referred. The cooling heat exchanger 32 is provided at a front part of the housing 50 to allow blowing air to pass in substantially a front and rear direction. The blowing air is cooled by heat exchange with a heat transfer medium passing through the inside of the cooling heat exchanger 32. For example, the fluorocarbon refrigerant or carbon dioxide can be used as the heat medium [0027] The heating heat exchanger 33 is provided behind the cooling heat exchanger 32 and is provided such that the blowing air passes therethrough substantially in the up- down direction. For example, the heating heat exchanger 33 includes: a hot water heater 33a in which hot water that has flowed and has been heated through an engine flows; and an electric heater 33b that is heated when energized. [0028]
In a state illustrated in the drawing, the blowing air that has passed through the cooling heat exchanger 32 partially passes through right and left sides of the rearseat blower member 41, and is directed below the heating heat exchanger 33, and flows upward. At this time, the blowing air is heated by the heating heat exchanger 33. [0029]
The heating heat exchanger 33 does not always have to include two components, which are the hot water heater 33a and the electric heater 33b, and may include only one thereof. Alternatively, a heater using a heat medium other than the hot water may be adopted in the heating heat exchanger. For example, the fluorocarbon refrigerant or carbon dioxide can be used as the heat medium. [0030]
The front-seat temperature adjustment device 34 includes a front-seat temperature adjustment actuator (not illustrated) that is energized to generate a rotary driving force, a rotary drive unit 34a that includes a pinion gear and is connected to the front-seat temperature adjustment actuator to be rotated, and a door body 34b that slides in substantially the front and rear direction in conjunction with the rotation of the rotary drive unit 34a. The door body 34b includes a rack to engage with the pinion gear.
[0031]
Opening amounts of the cold air flow path CP and the hot air flow path HP are regulated by moving the door body 34b. In this way, a volume of the cold air and a volume of the hot air flowing into the mixing flow path MP are regulated, and a temperature of mixed air thereby becomes the predetermined temperature when the cold air and the hot air are mixed in the mixing flow path MP.
[0032]
The front-seat temperature adjustment device 34 may not include the sliding door but may include a swinging door that is rotatable about a rotational shaft.
[0033]
The defroster opening/clos ing door 36 is configured with a swinging door that can swing to regulate an opening amount of the defroster opening 51.
[0034]
The vent opening/closing door 37 is configured with a swinging door, and due to the swings, the amount of opening of the vent openings 52, 53 (the side vent openings 52 is referred in Fig. 1) can be controlled.
[0035]
The foot opening/closing door 38 is configured with a swinging door that can swing to regulate an opening amount of the foot opening 54. [0036]
The rear-seat blower member 41 is a duct-shaped member that is located forwardly of the heating heat exchanger 33 and extends in the up and down direction. The rear-seat blower member 41 is formed to have a smaller width of a blower member body portion 41c described later in the left and right direction, than the width of the heating heat exchanger 33 in the left and right direction. Thereby, blowing air that has passed through the cooling heat exchanger 32 can pass the left and right sides of the rearseat blower member 41 to flow toward the heating heat exchanger 33. The upper end of the rear-seat blower member 41 faces a downstream end of the heating heat exchanger 33, and the lower end of the rear-seat blower member 41 faces an upstream end of the rear duct 16. [0037]
A portion which is a rear face of a rear-seat blower member 41 and faces a cold air flow path CP is formed to have a cold air introduction opening 41a to introduce a cold air .
[0038]
Figs. 2 and 3 are referred. Main elements of the rear-seat blower member 41 are an introduction portion 41b into which the blowing air having passed through the heating heat exchanger 33 is introduced, and a blower member body portion 41c through which the blowing air introduced into the introduction portion 41b flows. A tapered portion 41d is formed between the introduction portion 41b and the blower member body portion 41c, and the width thereof is continuously narrowed from the introduction portion 41b toward the blower member body portion 41c. Further, the rear-seat blower member 41 includes an extending portion 41e extending from the upper and side portions of the introduction portion 41b to the hot air flow path HP. [0039]
Figs. 3 and 4 are referred. The introduction portion 41b is formed over the left and right of the housing 50. The width W1 of the introduction portion 41b in the vehicle width direction is substantially the same as the width W1 of the heating heat exchanger 33 in the vehicle width direction, and is wider than the width W2 of the blower member body portion 41c. The introduction portion 41b is partially located above the heating heat exchanger 33 and below the rotary drive unit 34a.
[0040]
The introduction portion 41b only needs to have a width larger than that of the blower member body portion 41c, but is not necessarily provided to extend over the left and right of the housing 50. The reason will be described later . [0041]
The blower member body portion 41c is formed in a duct shape. A position, which faces the cold air flow path CP, of a rear face of the blower member body portion 41c is formed to have a cold air introduction opening 41a. [0042]
Fig. 2 is referred. The interior of the blower member body portion 41c is to be a rear-seat hot air passage RH through which the blowing air warmed by the heating heat exchanger 33 passes, and a rear-seat mixed flow path RM that is located downstream of the rear-seat hot air passage RH and is mixed with cold air taken in through the cold air introduction opening 41a to adjust the temperature. The blower member body portion 41c is provided between the cooling heat exchanger 32 and the heating heat exchanger 33. [0043]
As described above, since the rear-seat hot air passage RH is surrounded by the cold air flow path CP, there is a concern that hot air passing through the rear-seat hot air passage RH is cooled unintentionally. Alternatively, there is another concern that cold air flowing through the cold air flow path CP is heated unintentionally. In light of the above, for example, a heat insulating material such as urethane foam is attached around the rear-seat blower member 41 or the rear-seat blower member 41 itself is made of foam resin to improve the thermal insulation, so that it can prevent unintended heat exchange. Such thermal insulation countermeasures may not be necessarily taken, and countermeasures are appropriately selected in consideration of a blow-out temperature of conditioned air blown out of the air conditioner 20, cost, and so on. In a case where a heat insulating material is attached to the rear-seat blower member 41, the attachment position may be an outer surface of the rear-seat blower member 41, or an inner surface thereof facing the rear-seat hot air passage RH.
[0044]
Fig. 3 is also referred. The tapered portion 41d has a curved shape in which a radius of curvature gradually decreases from the introduction portion 41b toward the blower member body portion 41c.
[0045]
The extending portion 41e is a portion extending to the upstream side of a lower end portion 41bl of the introduction portion 41b (a portion extending to the upstream side with respect to the two-dot chain line in FIG. 4) . A part of the extending portion 41e is located above the heating heat exchanger 33 and below the rotary drive unit 34a, together with a part of the introduction portion 41b. The upper surface of the introduction portion 41b and the upper surface of the extending portion 41e are continuous with each other and have a shape along the track of the door body 34b. The extending portion 41e is separated from the heating heat exchanger 33. The extending portion 41e extends to a part of the hot air flow path HP.
[0046]
A rear duct 16 is connected to a lower portion of the rear-seat blower member 41. The rear duct 16 extends downward from the lower end of the rear-seat blower member 41 and extends rearward along the floor surface. [0047]
The rear-seat blower member 41 may be integrally formed with the housing 50, or may be a member different from the housing 50.
[0048]
Fig. 5 is also referred. FIG. 5 illustrates a rearseat blower member 41X according to a modified example. Components common to those in FIG. 4 are denoted by the same reference numerals. Both ends of the lower end 41bl of the introduction portion 41b of the rear-seat blower member 41X coincide with ends of the upstream side of the tapered portion 41d (see Pl) . In this case, the introduction portion 41b is implemented by the thickness of the wall thickness of the rear-seat blower member 41X.
[0049]
Fig. 4 is referred. The rear-seat temperature adjustment device 70 includes a rear-seat temperature adjustment actuator 71 that generates a rotary driving force by being energized, and a rear-seat temperature adjustment door 72 that swings by actuating of the rear-seat temperature adjustment actuator 71 and adjusts the mixing ratio of hot air and cold air. The rear-seat temperature adjustment actuator 71 may be a stepping motor, for example. [0050]
The present invention is summarized below. [0051]
Figs. 1 and 2 is referred. First, the air conditioner 20 can blow air toward the front seat 12 and the rear seat 13 disposed behind the front seat 12, on each of which a passenger of a vehicle can sit, and in the internal space IS of the housing 50, a cooling heat exchanger 32 capable of cooling the blowing air and a heating heat exchanger 33 capable of heating the blowing air that has passed through the cooling heat exchanger 32 are provided. With reference to the vehicle advancing direction, the heating heat exchanger 33 is provided behind the cooling heat exchanger 32. In the internal space IS, the cold air flow path CP through which blowing air that has passed only through the cooling heat exchanger 32 flows, the hot air flow path HP through which blowing air that has passed through the heating heat exchanger 33 flows, and the mixing flow path MP in which the blowing air that has flown in the cold air flow path CP and the blowing air that has flown in the hot air flow path HP are mixed, are formed. On the downstream of the heating heat exchanger 33 with reference to the flowing direction of the blowing air, the rear-seat blower member 41 for guiding the blowing air that has passed through the heating heat exchanger 33 to the rear seat 13 is provided.
[0052]
Figs. 3 and 4 are referred. The rear-seat blower member 41 includes the introduction portion 41b into which the blowing air having passed through the heating heat exchanger 33 is introduced, and the blower member body portion 41c, through which the blowing air introduced into the introduction portion 41b flows and which is provided between the cooling heat exchanger 32 and the heating heat exchanger 33. With reference to direction along the width of the vehicle, the width of the blower member body portion 41c is narrower than that of the heating heat exchanger 33, and the width of the introduction portion 41b is wider than that of the blower member body portion 41c.
[0053]
Fig. 2 is referred. The rear-seat hot air passage RH is provided between the cooling heat exchanger 32 and the heating heat exchanger 33. Accordingly, it is possible to connect the rear duct 16 and so on, avoiding a lower rear part of the housing 50. The leg room of the passenger in the front seat 12 (see FIG. 1) can be sufficiently secured. [0054]
Figs. 3 and 4 are referred. In addition, the width of the introduction portion 41b in the vehicle width direction is wider than the width of the blower member body portion 41c in the vehicle width direction. Thus, warm blowing air can be introduced from a wider range. The predetermined amount of blowing air can be more reliably sent toward the rear seat. [0055]
Second, in the first air conditioner 20, the rearseat blower member 41 has the tapered portion 41d, of which a width continuously decreases from the introduction portion 41b toward the blower member body portion 41c, between the introduction portion 41b and the blower member body portion 41c.
[0056]
Since the tapered portion 41d is provided, air can be efficiently and smoothly blown from the introduction portion 41b toward the blower member body portion 41c. The predetermined amount of blowing air can be more reliably sent toward the rear seat. [0057]
Fig. 2 is referred. Third, in the first or second air conditioner 20, the air conditioner 20 further includes the front-seat temperature adjustment device 34 capable of adjusting a ratio of the blowing air passing through the cold air flow path CP to the blowing air passing through the hot air flow path HP. The front-seat temperature adjustment device 34 includes the rotary drive unit 34a, and the door body 34b that is driven by the rotary drive unit 34a and is movable between a boundary portion between the cold air flow path CP and the mixing flow path MP and a boundary portion between the hot air flow path HP and the mixing flow path MP. At least a part of the introduction portion 41b is located between the heating heat exchanger 33 and the rotary drive unit 34a. [0058]
A space between the heating heat exchanger 33 and the rotary drive unit 34a is a dead space in which a part of the door body 34b is usually present. That is, in the area, the hot air does not flow from the hot air flow path HP to the mixing flow path MP. The introduction portion 41b is formed using such a dead space. The introduction portion 41b can be provided while suppressing an increase in the ventilation resistance.
[0059]
Figs. 3 and 4 are referred. Fourth, in the any one of the first to third air conditioner 20, the rear-seat blower member 41 has the extending portion 41e that extends from the introduction portion 41b to the hot air flow path HP and guides the blowing air that has passed through the heating heat exchanger 33 to the introduction portion 41b. [0060]
Due to the extending portion 41e, it is possible to more take in the blowing air that has been sent upward through the heating heat exchanger 33. The predetermined amount of blowing air can be more reliably sent toward the rear seat .
[0061]
Fig. 2 is referred. Fifth, in the fourth air conditioner 20, the air conditioner 20 further includes the front-seat temperature adjustment device 34 capable of adjusting a ratio between the blowing air passing through the cold air flow path CP and the blowing air passing through the hot air flow path HP. The front-seat temperature adjustment device 34 includes the rotary drive unit 34a, and the door body 34b that is driven by the rotary drive unit 34a and is movable between a boundary portion between the cold air flow path CP and the mixing flow path MP and a boundary portion between the hot air flow path HP and the mixing flow path MP. At least a part of the extending portion 41e is located between the heating heat exchanger 33 and the rotary drive unit 34a. [0062]
A space between the heating heat exchanger 33 and the rotary drive unit 34a is a dead space in which a part of the door body 34b is usually present. The extending portion 41e is formed using such a dead space. The extending portion 41e can be provided while suppressing an increase in the ventilation resistance. [0063]
The present invention is not limited to the examples as long as operations and effects of the present invention are achieved.
Industrial Applicability
[0064]
The air conditioner according to the present invention is suitable for an air conditioner mounted on a passenger vehicle .
[Reference Signs List]
[0065]
12 : Front seat
13 : Rear seat
20: Vehicle air conditioner
32: Cooling heat exchanger
33: Heating heat exchanger
34: Front-seat temperature adjustment device
34a: Rotary drive unit
34b: Door body
41: Rear-seat blower member
41b: Introduction Portion
41c: Blower member body portion
41d: Tapered Portion
41e: Extending Portion
50 : Housing
IS: Internal space
CP: Cold air flow path
HP: Hot air flow path
MP: Mixing flow path

Claims

[CLAIMS]
[Claim 1]
A vehicle air conditioner that can blow air toward a front seat (12) and a rear seat (13) located behind the front seat (12) , on each of which a passenger of a vehicle can sit, wherein in an internal space (IS) of a housing (50) , a cooling heat exchanger (32) capable of cooling a blowing air and a heating heat exchanger (33) capable of heating the blowing air that has passed through the cooling heat exchanger (32) are provided, the heating heat exchanger (33) is provided rearwardly of the cooling heat exchanger (32) with reference to a travel direction of the vehicle, and a cold air flow path (CP) through which the blowing air that has passed only through the cooling heat exchanger (32) flows, a hot air flow path (HP) through which the blowing air that has passed through the heating heat exchanger (33) flows, and a mixing flow path (MP) in which the blowing air that has passed through the cold air flow path (CP) and the blowing air that has passed through the hot air flow path (HP) are mixed together are formed in the internal space (IS) , wherein with reference to a direction in which the blowing air flows, a rear-seat blower member (41) is provided downstream of the heating heat exchanger (33) to guide the blowing air that has passed through the heating heat exchanger ( 33 ) to the rear seat (13) , the rear-seat blower member (41) includes an introduction portion (41b) into which the blowing air having passed through the heating heat exchanger (33) is introduced, and a blower member body portion (41c) through which the blowing air introduced into the introduction portion (41b) flows and which is provided between the cooling heat exchanger (32) and the heating heat exchanger (33) , and with reference to a direction along the width of the vehicle, the blower member body portion (41c) is narrower in width as compared with the heating heat exchanger (33) , and the introduction portion (41b) is wider in width as compared with the blower member body portion (41c) .
[Claim 2]
The vehicle air conditioner according to claim 1, wherein the rear-seat blower member (41) has a tapered portion (41d) , of which a width continuously decreases from the introduction portion (41b) toward the blower member body port ion ( 41c ) , between the introduction portion (41b) and the blower member body portion (41c) .
[Claim 3]
The vehicle air conditioner according to claim 1, further comprising a front-seat temperature adjustment device (34) capable of adjusting a ratio between the blowing air passing through the cold air flow path (CP) and the blowing air passing through the hot air flow path (HP) , wherein the front-seat temperature adjustment device (34) includes a rotary drive unit (34a) , and a door body (34b) which is driven by the rotary drive unit (34a) and is movable between a boundary portion between the cold air flow path (CP) and the mixing flow path (MP) and a boundary portion between the hot air flow path (HP) and the mixing flow path (MP ) , and at least a part of the introduction portion (41b) is located between the heating heat exchanger (33) and the rotary drive unit (34a) .
[Claim 4]
The vehicle air conditioner according to claim 1, wherein the rear-seat blower member (41) includes an extending portion (41e) that extends from the introduction portion (41b) to the hot air flow path (HP) and guides the blowing air that has passed through the heating heat exchanger (33) to the introduction portion (41b) .
[Claim 5]
The vehicle air conditioner according to claim 4, further comprising a front-seat temperature adjustment device (34) capable of adjusting a ratio between the blowing air passing through the cold air flow path (CP) and the blowing air passing through the hot air flow path (HP) , wherein the front-seat temperature adjustment device (34) includes a rotary drive unit (34a) , and a door body (34b) which is driven by the rotary drive unit (34a) and is movable between a boundary portion between the cold air flow path (CP) and the mixing flow path (MP) and a boundary portion between the hot air flow path (HP) and the mixing flow path (MP ) , and at least a part of the extending portion (41e) is located between the heating heat exchanger (33) and the rotary drive unit (34a) .
EP24709004.6A 2023-03-01 2024-02-29 Vehicle air conditioner Pending EP4673322A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2023030684A JP2024123350A (en) 2023-03-01 2023-03-01 Vehicle air conditioning system
PCT/EP2024/055299 WO2024180198A1 (en) 2023-03-01 2024-02-29 Vehicle air conditioner

Publications (1)

Publication Number Publication Date
EP4673322A1 true EP4673322A1 (en) 2026-01-07

Family

ID=90361257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24709004.6A Pending EP4673322A1 (en) 2023-03-01 2024-02-29 Vehicle air conditioner

Country Status (4)

Country Link
EP (1) EP4673322A1 (en)
JP (1) JP2024123350A (en)
CN (1) CN120712190A (en)
WO (1) WO2024180198A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8187063B2 (en) * 2009-03-31 2012-05-29 Honda Motor Co., Ltd. Evaporator frost prevention control logic for front and rear integrated HVAC system
JP7321016B2 (en) * 2019-07-17 2023-08-04 株式会社ヴァレオジャパン vehicle air conditioner
KR102907988B1 (en) * 2019-11-08 2026-01-05 한온시스템 주식회사 Air conditioner for vehicle
KR102881937B1 (en) * 2019-12-13 2025-11-05 현대자동차주식회사 Air conditioner for vehicle

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CN120712190A (en) 2025-09-26
WO2024180198A1 (en) 2024-09-06

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