JP2008302793A - Air conditioner for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve amenity at the third row seat of a vehicle where seats are arranged in the three rows forwards/backwards. <P>SOLUTION: An air conditioner for the vehicle is mounted on the vehicle such as a mini-van where the first to third row seats 1, 2, 3 are arranged in the three rows forwards/backwards. A branched duct 21b is branched from a rear bent duct 21a continued to an air conditioning unit 20, and a first blowout port 15 communicating to these respective ones and a second blowout port 16 positioning at the upper side are provided at the rear end part 12a of a center console 12. While the air-conditioned air produced in the air conditioning unit 20 is blown out from the first blowout port 15 toward the second row seat 2, the air conditioned air is blown out from the second blowout port 16 toward the three row seat 3 passing through the upper side of the second row seat 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle air conditioner provided in a vehicle in which seats are arranged in three rows in the front-rear direction, and particularly relates to an air-conditioning technology that improves the comfort of the seats in the third row.

  Attempts to improve the comfort of passengers by devising the arrangement of air conditioners and air outlets for air conditioning from the past have been widely performed, for example, as seen in Patent Documents 1 to 3.

  In Patent Document 1, an air-conditioning air outlet (upper vent) provided in the instrument panel is formed in a long hole extending in the front-rear direction of the vehicle so that the inner wall of the air outlet does not get in the way when air-conditioning air is blown out. The conditioned air is smoothly blown out to the rear of the passenger compartment.

  In patent document 2, the 1st blower outlet and warm air for cold wind from which the ventilation direction differs toward the passenger | crew who seats on the 2nd row | line seat at the rear-end part of the center console which faces back from between the front row | line | columns of a front row | line A second air outlet (rear vent) is provided for selectively switching between cold air and hot air.

In Patent Document 3, a rear air-conditioning unit (rear air-conditioner) is installed at the rear of the vehicle separately from the front air-conditioning unit disposed at the front of the vehicle, and a passenger seated on the rear seat from the rear of the passenger compartment. Air conditioned air can be blown out.
JP 2005-289148 A Japanese Patent No. 3855849 JP 2006-240403 A

  By the way, recently, a so-called minivan type vehicle having three rows of seats (referred to as first, second, and third row seats in order from the front) is popular. In this type of vehicle, the amount of seats increases, so the indoor space is large and the conditioned air blown into the room tends to be biased. For example, when the conditioned air is blown out from the upper vent as in Patent Document 1, if the air volume is lowered, it will not reach the third row sheet, but if the air volume is increased so that it reaches the third row sheet, There is a risk of impairing the comfort of the passenger seated in the first row seat.

  Moreover, in the rear vent which turned the blower outlet toward the 2nd row seat like patent document 2, even if the blowing direction was switched according to the temperature of the air-conditioning wind, the passenger seated on the 2nd row seat and this Since it is blocked, it is difficult to sufficiently distribute the conditioned air to the third row seat behind it, resulting in a difference in comfort between the second row seat occupant and the third row seat occupant.

  In that regard, if a separate rear air conditioner is provided as in Patent Document 3 and the air conditioned air is blown out from the rear, a significant improvement is possible. However, the installation cost is high and the vehicle weight increases. There are disadvantages.

  The present invention has been made in view of the above points, and an object of the present invention is to ensure the comfort of an occupant seated on the third row seat while having a simple structure without installing a rear air conditioner. There is to do.

  In order to achieve the above object, in the present invention, a blowout opening dedicated to the third row seat is provided in addition to the blowout opening for the second row seat at the rear end portion of the center console.

  Specifically, the invention according to claim 1 is mounted on a vehicle in which a first row seat including a driver seat and a passenger seat and a second row seat and a third row seat including a passenger seat are arranged in three rows in the front and rear. An air conditioning unit for a vehicle that generates air conditioned air by introducing air, and a rear end portion of a center console that faces the second row seat from between the driver seat and the passenger seat of the first row seat A first air outlet for blowing the conditioned air fed through the first duct connected to the air conditioning unit toward the second row seat, and an opening above the first air outlet of the center console. It is set as the structure provided with the 2nd blower outlet which blows off the conditioned air sent through the 2nd duct branched from 1 duct so that it may pass through the upper direction of a 2nd row sheet, and may go to a 3rd row sheet.

  According to this configuration, part of the conditioned air generated by the air conditioning unit is supplied to the first air outlet through the first duct and is blown out from the first air outlet toward the second row seat. On the other hand, the remainder of the conditioned air generated by the air conditioning unit is fed to the second outlet through the second duct branched from the first duct. The second air outlet opens above the first air outlet, and the conditioned air blown out from the second air outlet passes above the second row seat and travels toward the third row seat. The sheet is stably fed to the third seat without being obstructed by the seat and its occupant and without interfering with the conditioned air directed from the first outlet to the second row seat.

  According to a second aspect of the present invention, in the vehicle air conditioner according to the first aspect, an open / close door that opens and closes a branch opening of the second duct facing the flow path in the first duct is provided. When the branch opening is opened, a part of the conditioned air that protrudes into the flow path in the first duct and goes to the first outlet is guided to the second duct.

  According to this configuration, the supply of the conditioned air to the third row seat can be selected and used by opening and closing the open / close door. That is, if the open / close door is closed, all of the conditioned air generated by the air conditioning unit can be supplied to the first outlet and blown out toward the second row seats that are normally used. On the other hand, when the number of passengers increases and the third row seat is used, the open / close door is opened and a part of the conditioned air is introduced into the second duct. At this time, since the open / close door projects into the flow path in the first duct, the conditioned air flowing in the first duct can be efficiently guided to the second duct.

  According to a third aspect of the present invention, in the vehicle air conditioner according to the second aspect, the first duct has a standing portion that is bent upward and rises at the rear end thereof, and a protrusion that is bent backward and protrudes from the upper end of the standing portion. And the second duct is branched obliquely upward and rearward from the first duct in the vicinity of the bent portion from the standing portion to the projecting portion, and the open / close door is downstream of the branch opening. It is set as the structure supported by the periphery so that rocking is possible.

  According to this configuration, the conditioned air is efficiently and smoothly introduced into the second duct. That is, the flow direction of the conditioned air flowing in the first duct is changed from the upper part to the rear part at the bent part, but the second duct is branched so as to go diagonally upward from the vicinity of the bent part. At the same time, if the open / close door provided on the downstream side of the branch opening is projected into the first duct, a large amount of conditioned air can be efficiently and smoothly taken into the second duct.

  According to a fourth aspect of the present invention, in the vehicle air conditioner according to the third aspect, the opening area of the second outlet is set smaller than the opening area of the first outlet.

  According to this configuration, conditioned air with a high flow velocity is blown out from the second outlet. That is, since the conditioned air is efficiently and smoothly taken into the second duct, the second duct can be narrowed even if the opening area of the second outlet is smaller than the opening area of the first outlet. Since the conditioned air introduced into the air does not need to be largely taken away by the first duct, the conditioned air having a high flow velocity is blown out from the second outlet.

  According to a fifth aspect of the present invention, in the vehicle air conditioner according to any one of the second to fourth aspects, the occupant detection means for detecting the presence or absence of an occupant seated on the third row seat, and the occupant detection means include: A second duct opening / closing means for closing the opening / closing door when it is detected that no occupant is seated on the three-row seat is provided.

  According to this configuration, since the open / close door can be automatically opened / closed according to the presence / absence of an occupant in the third row seat, the trouble of opening / closing the open / close door one by one can be saved. When there is no passenger in the third row seat, all of the conditioned air can be surely blown out toward the second row seat, and there is no waste.

  According to the first aspect of the invention, the conditioned air generated by the air conditioning unit is blown out from the first air outlet toward the second row sheet, and the second row sheet is discharged from the second air outlet above the first air outlet. Since the air is blown obliquely upward so as to pass through the top of the third row sheet, each conditioned air does not interfere and can be fed stably. Comfort can be ensured. Moreover, since it is a simple structure which only provides the 2nd duct and 2nd blower outlet which branch from a 1st duct, it can implement at low cost and hardly raises a weight.

  According to the invention of claim 2, by closing the open / close door, the conditioned air can be efficiently used toward the second row seat that is normally used, while the open / close door is opened to the flow path in the first duct. If projecting, the conditioned air can be efficiently guided to the second outlet.

  According to the invention of claim 3, the conditioned air flowing through the first duct can be efficiently and smoothly introduced into the second duct, and the conditioned air can be stably fed to the third row sheet.

  According to the invention of claim 4, since the conditioned air having a high flow velocity can be sufficiently blown out from the second air outlet, it can be efficiently fed to the third row sheet beyond the second row sheet. The difference in comfort between the second row seat and the third row seat can be eliminated.

  According to the invention of claim 5, since the open / close door can be automatically opened / closed according to the presence / absence of a passenger in the third row seat, the trouble of opening / closing the open / close door can be saved, and it is easier and more comfortable. You can enjoy sex.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

  FIG. 1 shows the interior of an automobile equipped with a vehicle air conditioner (hereinafter simply referred to as an air conditioner) according to the present invention. In the passenger compartment, a first row seat 1 consisting of a driver's seat 1a and a passenger seat 1b arranged in the front row, a second row seat 2 consisting of a passenger seat arranged behind it, and further Three rows of rear row third passenger seats 3 arranged in the rear row are arranged in the front-rear direction of the vehicle. In the following description, “front” and “rear” mean “front in the vehicle front-rear direction” (left side in FIG. 1) and “rear in the vehicle front-rear direction”, respectively, unless otherwise specified. “Right” means “left in the vehicle width direction” and “right in the vehicle width direction” with respect to the vehicle body, respectively.

  As shown in FIG. 1, a front window 4 and an instrument panel 5 below the front row 4 are disposed in front of the first row seat 1 to divide the front of the passenger compartment. On the right side of the instrument panel 5 located in front of the driver's seat 1a, a cluster 6 for accommodating a speedometer and the like is disposed, and a steering wheel 7 is disposed between the cluster 6 and the driver's seat 1a. Yes. A glove box 8 is disposed on the left side portion of the instrument panel 5 located in front of the passenger seat 1b, and an audio device and an air conditioner are operated at a central portion in the left-right direction of the instrument panel 5. The operation unit 10 is provided. The air conditioner is controlled by a controller (not shown) by operating the operation unit 10.

  A pair of left and right ventilators 11, 11 is provided on both the left and right sides of the operation portion 10 in the central part of the instrument panel 5, and the ventilator 11, 11 is provided at both left and right ends of the instrument panel 5. 11 is provided. A center console 12 that extends rearward in the vehicle interior is provided continuously from the lower side of the operation portion 10 at the central portion of the instrument panel 5.

  As shown in FIG. 2, the center console 12 projects between the driver seat 1 a and the passenger seat 1 b of the first row seat 1 and protrudes rearward of the first row seat 1, and the rear end portion 12 a is a second end portion 12 a. It faces the occupant's living space in row seat 2. A shift operation unit 13 extending from the shift lever is installed on the upper surface of the front part of the center console 12 continuing from the instrument panel 5, and a storage box 14 for storing articles is installed in the rear part thereof. Yes.

  Two rear vents (air outlets) 15 and 16 that are vertically and horizontally long are opened at the upper end of the rear end portion 12a of the center console 12 following the storage box. The lower rear vent 15 blows out conditioned air toward the second row seat 2, which is a so-called outlet for the second row seat 2 (hereinafter referred to as the first outlet 15), and the upper rear vent 16 is a third outlet. It is a so-called outlet for exclusive use of the third row sheet 3 (hereinafter referred to as second outlet 16).

  A lateral louver 17 is attached to each of the first and second outlets 15 and 16 so that the left and right angles can be adjusted separately. Details of these air outlets 15 and 16 will be described later.

  The conditioned air blown from both the outlets 15 and 16 is generated by the air conditioning unit 20 accommodated in the instrument panel 5, and the rear supply duct installed from the air conditioning unit 20 to the inside of the center console 12. 21 is sent through. The specific configuration will be described with reference to a side sectional view showing the main part of the air conditioner of FIG.

  The air conditioning unit 20 has a function of sucking air from the outside of the vehicle or the interior of the vehicle and adjusting it to the temperature and humidity set by the previous operation unit 10 and then blowing out the air as conditioned air. Such a function is realized by controlling various devices incorporated in the air conditioning unit 20 (not shown) such as a blower fan, an evaporator, and a heater core by a controller.

  Vent ducts 20b, 20b,... Communicating with the above ventilators 11, 11,... Are connected to a case 20a that forms a ventilation path (not shown) in the air conditioning unit 20 through which conditioned air passes. The ventilation path and each vent duct 20b communicate with each other, and a part of the conditioned air generated by the air conditioning unit 20 passes through the vent ducts 20b, 20b,. To the passenger's living space of the first row seat 1.

  Apart from these, a rear feed duct 21 is connected to the case 20 a so that the ventilation path and the rear feed duct 21 communicate with each other, and the air conditioning generated by the air conditioning unit 20 through the rear feed duct 21. A part of the wind is fed to the first and second outlets 15 and 16.

  Specifically, the rear supply duct 21 has a rear vent duct 21a (first duct) whose upstream end is connected to the air conditioning unit 20 and whose downstream end communicates with the first air outlet 15, and the rear vent duct. It is composed of a branch duct 21b (second duct) that branches from 21a.

  As shown in FIG. 3, the rear vent duct 21a communicates with the ventilation path in the air conditioning unit 20 through a communication port 20c formed in the lower part of the case 20a of the air conditioning unit 20, and this communication port 20c has this communication port 20c. A rear air conditioning door 22 for opening and closing is attached. The rear air conditioning door 22 is controlled by a controller, and is held in an open position when supplying conditioned air to the rear vent duct 21a, so that the ventilation path in the air conditioning unit 20 and the rear vent duct 21a communicate with each other. . On the other hand, when the conditioned air is not supplied to the rear vent duct 21a, the rear vent duct 21a is held in the closed position, and the communication state is blocked.

  A rear blower fan 24 that complements the blower fan in the air conditioning unit 20 is installed in the middle of the front and rear direction of the rear vent duct 21a. The rear blower fan 24 is for accelerating the flow of the conditioned air supplied to the air outlets 15 and 16, and when driven, the conditioned air flowing from the upstream side of the rear vent duct 21a is subjected to dynamic pressure. Is added and fed downstream with the flow velocity increased. However, the rear blower fan 24 is not always essential.

  The rear vent duct 21 a is disposed from the instrument panel 5 to the center console 12. The rear vent duct 21a extending rearward from the rear blower fan 24 extends to the rear end 12a of the center console 12 so as to crawl on the vehicle body floor, and the shape thereof is a rectangular shape that is long in the left-right direction. It has a cylindrical box shape having a cross section (cross section orthogonal to the flow path direction).

  As shown in FIG. 4, the rear end side portion of the rear vent duct 21 a is bent upward and rises, and the protruding portion 211 is bent substantially rearward from the upper end of the standing portion 210. With. And the front-end | tip of this protrusion part 211 is connected to the 1st blower outlet 15 opened to the rear-end part 12a of the center console 12, and the rear vent duct 21a and the 1st blower outlet 15 are connecting.

  A branch opening 212 having a rectangular shape that is long in the left-right direction is provided on the upper wall surface of the protrusion 211 in the vicinity of the portion bent from the protruding portion 211 of the rear vent duct 21a to the standing portion 210 or in the vicinity thereof (near the bent portion). It faces the flow path of the conditioned air formed in the rear vent duct 21a. A branch duct 21 b is connected to the branch opening 212.

  The branch duct 21b has a cylindrical box shape having a rectangular channel cross section that is substantially the same shape as the branch opening 212 in the left-right direction, and is inclined upward and backward from the connection end with the rear vent duct 21a. It is formed to protrude. The front end of the branch duct 21b is connected to the second air outlet 16 that opens at the rear end 12a of the center console 12, and the branch duct 21b and the second air outlet 16 communicate with each other.

  At least the flow path cross section of the part extending from the standing part 210 of the rear vent duct 21a to the protruding part 211 and the flow path cross section of the part extending from the connection end to the tip of the branch duct 21b are formed in substantially the same shape. The lateral width dimensions of the rear vent duct 21a and the branch duct 21b are substantially the same, but the vertical dimension of the vertical direction is formed to be about half smaller in the branch duct 21b, that is, flat. The area of the channel cross section is smaller in the branch duct 21b.

  And the 1st blower outlet 15 has the opening area substantially the same as the area of the flow-path cross section of the rear vent duct 21a, and is carrying out the rectangular shape long in the left-right direction. On the other hand, the second outlet 16 has an opening area that is substantially the same as the cross-sectional area of the branch duct 21b, has a vertical dimension that is smaller than that of the second outlet 16, and is long in the left-right direction. I am doing.

  That is, both 21a and 21b have substantially the same channel cross section from the inflow end to the outflow end connected to the openings of the air outlets 15 and 16, and can be blown out without reducing the flow rate of the conditioned air. . In addition, since the conditioned air blown from each of the air outlets 15 and 16 is blown out in a strip shape extending in the left-right direction, there is an effect of reducing the bias of the conditioned air in the vehicle width direction. The lateral louvers 17 attached to the air outlets 15 and 16 are attached so as to be able to swing a predetermined range along the longitudinal direction (flow path direction) of the protruding portion 211 of the rear vent duct 21a and the branch duct 21b, respectively. It demonstrates the function of rectifying and blowing out the conditioned air without disturbing the flow velocity.

  As shown in FIG. 4, the branch opening 212 is provided with an opening / closing door 214 for opening and closing the branch opening 212. The open / close door 214 has a rectangular plate shape that is substantially the same as the opening of the branch opening 212 and is long in the left-right direction, and both ends on one side in the left-right direction are downstream of the branch opening 212. It is pivotally supported at an end portion, in other words, at a portion (branch point) where the branch duct 21b branches from the rear vent duct 21a.

  Specifically, the opening / closing door 214 is controlled to be switched by an actuator (not shown), and is a closed position (indicated by a virtual line in FIG. 4) that is flush with the upper wall surface of the rear vent duct 21a and closes the branch opening 212. And an introduction position (in FIG. 4) that protrudes into the flow path in the rear vent duct 21a with the oscillating end directed upstream, and guides part of the conditioned air flowing in the flow path into the branch duct 21b. (Shown by the solid line) and swinging displacement.

  In this introduction position, the swing end portion of the open / close door 214 faces a bent portion between the standing portion 210 and the protruding portion 211 of the rear vent duct 21a. And the part of the rocking | fluctuation end which faces the bending part is set so that it may correspond with the direction where the streamline of the air-conditioning wind which flows through the bending part extends.

  By the way, the flow direction of the conditioned air flowing through the protruding portion 211 from the standing portion 210 of the rear vent duct 21a is changed from upward (vertical direction) to backward (horizontal direction) at the bent portion. At that time, the main stream of the conditioned air is likely to be formed on the outer peripheral side of the bending-changing flow. Accordingly, the branch opening 212 is formed on the upper wall surface of the projecting portion near the bent portion on the outer peripheral side, and the swinging end of the open / close door 214 pivotally supported at the branch point on the downstream side of the branch opening 212 is the bent portion. By matching the portion of the oscillating end facing the bent portion with the direction in which the streamline of the conditioned air flowing therethrough extends, a large amount of conditioned air can be efficiently and smoothly taken into the branch duct 21b. it can.

  As a result, even if the opening area of the second air outlet 16 is set smaller than the first air outlet 15 and the flow path is restricted, the air volume of the conditioned air introduced into the branch duct 21b is not greatly reduced. The conditioned air having a high flow velocity can be blown out from the two outlets 16.

  Such switching control of the opening / closing door 214 is preferably performed by the infrared sensor 100 (occupant detection means) and the switching controller 101 (second duct opening / closing means).

  Specifically, as shown in FIG. 1, for example, an infrared sensor 100 is installed on the inner surface of the ceiling wall behind the passenger compartment. The infrared sensor 100 is for detecting whether or not an occupant is seated on the third row seat 3, and is always operated while the engine key is on. As the infrared sensor 100, for example, a thermal type sensor having directivity can be preferably used. The infrared sensor 100 may be installed on the inner surface of the ceiling wall in front of the passenger compartment. In short, it is only necessary that the presence or absence of an occupant in the third row seat 3 can be detected with high accuracy.

  The switching controller 101 is composed of a CPU, a storage device, etc., and is mounted at a predetermined location of the vehicle. As shown in FIG. 3, the switching controller 101 is connected to the infrared sensor 100 and is connected to an actuator that controls the switching of the opening / closing door 214, and opens / closes the opening / closing door 214 based on an input signal from the infrared sensor 100. It has a function to control.

  Specifically, as shown in the flowchart of FIG. 5, the infrared sensor 100 detects whether there is an occupant in the third row seat 3 and outputs the signal to the switching controller 101 (step S <b> 1). When the infrared sensor 100 does not react without the presence of a passenger, the switching controller 101 sets the open / close door 214 to the closed position and maintains the state (step S2). On the other hand, when an occupant sits on the third row seat 3 and the infrared sensor 100 reacts, the switching controller 101 sets the open / close door 214 to the introduction position based on the output detection signal, and the state is changed to that state. Hold (step S3).

  As described above, since the opening / closing door 214 is automatically controlled to open / close in accordance with the presence / absence of an occupant on the third row seat 3, it is not necessary to operate each time, and the third row seat 3 having no occupant is wastefully air-conditioned. There is no wind.

  The conditioned air supplied to each of the air outlets 15 and 16 is blown out from the first air outlet 15 toward the second row seat 2 as indicated by the arrow line in FIG. From the second row sheet 2 and blown out toward the third row sheet 3.

  That is, the 1st blower outlet 15 is comprised so that an air-conditioning wind may be blown out toward the up-and-down range from the upper surface of the seat part of the 2nd row seat 2 to the upper end of a backrest part, for example toward the back. Yes. On the other hand, the second air outlet 16 is, for example, from the upper side of the first air outlet 15, for example, the uppermost end including the backrest portion and the headrest of the second row seat 2 (the backrest portion is not tilted backward), and the passenger compartment. Toward an air blowing area S (schematically shown in FIG. 1) which is defined by an inner surface of a ceiling wall defining the upper surface of the vehicle and an inner surface of the side wall of the vehicle defining the left and right side surfaces of the passenger compartment. It is configured to blow out.

  In addition, regarding this ventilation area | region S, the 2nd blower outlet 16 is formed in the substantially similar shape with this ventilation area | region S, for example, and it is good for the ratio of both length and width dimensions to correspond. This is because when the conditioned air passes through the blowing area S, it can be efficiently fed to the third row sheet 3 while avoiding a collision with the second row sheet 2 or the like.

  Next, the operation of the air conditioner configured as described above will be described.

  When the air conditioner is activated by the operation of the operation unit 10 provided on the instrument panel 5, conditioned air whose temperature and humidity are adjusted by the air conditioning unit 20 is generated, and a part of the conditioned air is supplied through the vent duct 20b. Is sent to the living space in front of the first row seat 1 from each ventilator 11 provided in the seat. The conditioned air blown from these ventilators 11 ensures the comfort of the passenger of the first row seat 1 such as the driver.

  On the other hand, when there is an occupant boarding the second row seat 2 and the supply of conditioned air to the living space in front of the second row seat 2 is requested, the communication port 20c below the air conditioning unit 20 is opened by the control of the controller. The ventilation path in the air conditioning unit 20 and the rear vent duct 21a communicate with each other and the conditioned air is introduced into the rear vent duct 21a.

  The conditioned air introduced into the rear vent duct 21a flows through the interior toward the rear outlets 15 and 16, and the flow velocity is increased when passing through the rear blower fan 24 interposed in the middle.

  When the conditioned air increased in speed by the rear blower fan 24 reaches the rear end portion of the rear vent duct 21a, it reaches the first air outlet 15 through the projecting portion 211 from the standing portion 210, and the first air outlet 15 Conditioned air is blown out toward the second row sheet 2. Here, since there is no occupant in the third row seat 3, the infrared sensor 100 does not react, and the open / close door 214 is held in the closed position where the branch opening 212 is closed (step S2 in FIG. 5). All of the wind is blown out from the first air outlet 15. Accordingly, the conditioned air generated by the air conditioning unit 20 can be efficiently supplied to the occupant's living space of the second row seat 2.

  On the other hand, when the number of occupants increases and occupants also sit on the third row seat 3, the infrared sensor 100 reacts and outputs a signal to that effect to the switching controller 101. Upon receiving such a signal, the switching controller 101 opens and closes the open / close door 214 to set and hold it at the introduction position (step S3 in FIG. 5).

  When the open / close door 214 is set and held at the introduction position, the open / close door 214 protrudes from the branching point of both the ducts 21a and 21b toward the upstream bent portion, and the flow direction of the conditioned air in the bent portion is Using the change, a part of the conditioned air flowing in the rear vent duct 21a can be efficiently guided to the branch duct 21b without disturbing the flow rate of the conditioned air. At this time, the open / close door 214 is less susceptible to wind pressure along the streamline of the conditioned air, so there is also an advantage that a load on the shaft portion can be avoided.

  Further, the opening / closing door 214 is set so that its swing end is held at a position at which the flow path of the rear vent duct 21a is substantially equally divided, that is, at a central portion in the longitudinal width direction of the flow path. Slightly more conditioned air is introduced toward 21b.

  Of course, the introduction position of the open / close door 214 may be changed so that the introduction amount of the conditioned air into the air outlets 15 and 16 can be adjusted.

  From the 1st blower outlet 15, comparatively weak air-conditioning wind blows off substantially horizontally toward back, and is sent to the passenger | crew's living space of the 2nd row seat 2. As shown in FIG. On the other hand, a relatively strong conditioned air is blown obliquely upward rearward from the second air outlet 16 provided on the upper side, passes through the air blowing area S above the second row seat 2, and enters the third row. The seat 3 is sent to the occupant's living space. At that time, since the conditioned air blown from both the outlets 15 and 16 does not intersect, the air can be efficiently fed to the third row sheet 3 as well as to the second row sheet 2. The passenger comfort of the seat 3 can be ensured.

  As described above, according to the air conditioner of the present invention, the air-conditioning air generated by one air-conditioning unit 20 from the first row seat 1 in the foremost row to the last is provided with a simple configuration without providing a rear air conditioner. Even the third row seats 3 in the row can be fed evenly, and the difference in passenger comfort caused by the seats seated can be effectively eliminated. In particular, the difference in comfort between the second row seat 2 and the third row seat 3 can be eliminated, which is effective.

  In addition, the structure of the air conditioner concerning this invention is not limited to the said embodiment, Various structures other than that are included. For example, the open / close door 214 may not be automatically controlled by the infrared sensor 100 or the switching controller 101 but may be manually operated by providing an operation knob or the like in the vicinity of the second air outlet 16, for example.

  The third row seat 3 is not necessarily provided permanently, and may be provided so as to be switchable from the luggage compartment by folding the seat.

  The control of the opening / closing door 214 may be interlocked with the control of the rear blower fan 24. That is, when the infrared sensor 100 detects that an occupant is in the third row seat and sets and holds the open / close door 214 at the introduction position, the output of the rear blower fan 24 is relatively increased in conjunction with the operation. In addition, the speed of the conditioned air blown from each of the outlets 15 and 16 is prevented from suddenly decreasing. When the opening / closing door 214 is set and held at the closed position, the output of the rear blower fan 24 is relatively reduced in conjunction with the operation, and the wind speed of the conditioned air blown from the first outlet 15 is set. This is to prevent sudden increase. According to this configuration, the conditioned air can be used more efficiently, and the comfort can be ensured by avoiding a sudden change of the conditioned air per wind.

It is the schematic which looked at the vehicle interior of the vehicle carrying the air conditioner of this invention from the side. It is a perspective view which shows the principal part of a center console. It is side surface sectional drawing which showed the principal part of the vehicle air conditioner. It is side surface sectional drawing which showed the blower outlet vicinity of the vehicle air conditioner. It is a flowchart which shows the flow of control of an opening / closing door.

Explanation of symbols

1 First row seat 2 Second row seat 3 Third row seat 12 Center console 15 First outlet 16 Second outlet 20 Air conditioning unit 21a Rear vent duct (first duct)
21b Branch duct (second duct)
100 Infrared sensor (occupant detection means)
101 switching controller (second duct opening / closing means)
212 Branch opening 214 Open / close door

Claims (5)

A vehicle air conditioner mounted on a vehicle in which a first row seat consisting of a driver seat and a passenger seat, and a second row seat and a third row seat consisting of a passenger seat are arranged in three rows in the front and rear,
An air conditioning unit that introduces air and generates conditioned air; and
Air conditioned air that opens from the driver seat and passenger seat of the first row seat to the rear end portion of the center console facing the second row seat and is fed through the first duct connected to the air conditioning unit is provided in the second row. A first outlet that blows out toward the seat;
The conditioned air that opens above the first outlet of the center console and is fed through the second duct branched from the first duct passes above the second row seat and travels toward the third row seat. And a second air outlet that blows out to the vehicle. The vehicle air conditioner according to claim 1,
An open / close door is provided for opening and closing the branch opening of the second duct facing the flow path in the first duct;
The opening / closing door is configured to project a part of the conditioned air toward the first air outlet to the second duct by projecting into the flow path in the first duct when opening the branch opening. Air conditioner. The vehicle air conditioner according to claim 2,
The first duct includes a standing portion that bends upward at the rear end and rises, and a protruding portion that bends and protrudes rearward from the upper end of the standing portion,
The second duct is branched obliquely upward and rearward from the first duct in the vicinity of the bent portion from the standing part to the protruding part,
The opening / closing door is an air conditioner for a vehicle that is pivotally supported on a downstream peripheral edge of the branch opening so as to be swingable. In the vehicle air conditioner according to claim 3,
The vehicle air conditioner in which the opening area of the second outlet is set smaller than the opening area of the first outlet. The vehicle air conditioner according to any one of claims 2 to 4,
Occupant detection means for detecting the presence or absence of an occupant seated in the third row seat;
A vehicle air conditioner comprising: second duct opening / closing means for closing the opening / closing door when the occupant detection means detects that no occupant is seated on the third row seat.

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