JP2017178277A - Air conditioner for vehicles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem of difficulty in forming a flow of conditioned air that wraps a body of an occupant by a conventional air conditioner for a vehicle.SOLUTION: An air conditioner 1 for a vehicle has, a pair of blowout ports 7R, 7L arranged on a roof 6 above a passenger's seat 5, for example, and suction ports 8R, 8L arranged on side surfaces of a seat cushion 5A in the vehicle width direction. Conditioned air blown out from the blowout ports 7R, 7L intersects and joins in front of an occupant P, and after joining, the joined flow of conditioned air flows downward along the torso of the occupant P. After that, it hits the lower body of the occupant such as the thighs and is diffused, and then sucked from the suction ports 8R, 8L. With this flow of air, a flow of conditioned air that wraps the body of the occupant P is formed and comfortableness of the occupant P is improved.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vehicle air conditioner, and more particularly, to a vehicle air conditioner that forms an air flow that wraps around the body of an occupant and improves the comfort of the occupant.

  The following systems are known as conventional vehicle air conditioning systems. FIG. 6A shows the flow of conditioned air in the vent blowing mode during cooling. An upper suction port 104 is provided so as to sandwich the headrest 103 of the driver's seat 101 of the vehicle 100, and the upper suction port 104 sucks conditioned air blown from an upper air outlet 105 in front of the vehicle. With this system, an air-conditioning wind that passes around the upper body of the driver 106 sitting on the driver's seat 101 is formed.

  On the other hand, FIG. 6B shows the flow of conditioned air in the foot blowing mode during heating. A lower suction port 107 is provided below the driver's seat 101 of the vehicle 100, and the lower suction port 107 sucks in air-conditioned air blown from a foot outlet 108 in front of the vehicle. With this system, an air-conditioning wind is formed so as to pass around the lower half of the driver's feet or the like sitting on the driver's seat 101 (see, for example, Patent Document 1).

  The following devices are known as conventional vehicle air conditioners. There are a first vent and a second vent that can be switched between cooling and heating, the first vent is provided on the side of the seat, the second vent is a seating portion, a backrest portion of the seat, and It is provided on the passenger side of the head support. During cooling, the air blown out from the second ventilation port is directly sucked into the occupant and then sucked from the first ventilation port. On the other hand, during heating, the air blown out from the first ventilation port is sucked from the second ventilation port via the periphery of the occupant (see, for example, Patent Document 2).

JP 2013-86705 A JP 2011-189964 A

  As shown in FIGS. 6 (A) and 6 (B), in the conventional vehicle air conditioning system described in Patent Document 1, conditioned air passing through the upper body of the driver 106 is formed during cooling, and the driver is used during heating. Air-conditioning wind that passes around the lower half of the body is formed. In either mode, the conditioned air is blown from the upper air outlet 105 or the foot air outlet 108 provided on the dashboard or the like in front of the driver's seat 101 and sucked from the upper air inlet 104 or the lower air inlet 107. It is.

  Therefore, it was possible to blow warmed or cooled conditioned air on a part of the occupant's body, but it was difficult to supply conditioned air that wrapped the occupant's body. There is a problem that it is difficult to satisfy comfort.

  Also, the airflow that passengers feel comfortable is different between cooling and heating. For example, during cooling, it is desirable to cool not only the body but also the neck and face with cold air. On the other hand, at the time of heating, the conditioned occupant may feel uncomfortable because the heated conditioned air directly hits the occupant's face. Therefore, as in the prior art described in Patent Document 2, it is difficult to achieve both passenger comfort during cooling and heating with control that simply reverses blowing and suction during cooling and heating. There is.

  In winter, the vehicle interior is usually heated and traveled. However, the heat in the vehicle interior is easily released outside the vehicle compartment through the window, and the center side of the vehicle 100 is warm, but the vehicle 100 gets cold at the window. A temperature difference occurs in the passenger compartment. In particular, when the vehicle 100 is traveling, heat in the vehicle interior is easily released outside the vehicle through the window due to the flow of air generated around the vehicle 100. As a result, the vicinity of the neck, shoulder and upper arm of the driver 106 located near the window is in a state of being easily cold.

  On the other hand, in the summer, the vehicle interior is usually cooled, but heat outside the vehicle interior easily flows into the vehicle interior through the window, the center side of the vehicle interior is cooled, but the vehicle 100 is hot near the window. As a result, a temperature difference occurs in the passenger compartment. In particular, near the window of the vehicle 100, direct sunlight may enter, and the neck, shoulder, and upper arm area of the driver 106 located near the window are likely to get hot.

  In other words, at the window of the vehicle 100, heat release from the passenger compartment and heat inflow from the outside of the passenger compartment are likely to occur, and measures for cooling and warming around the neck, shoulders, and upper arms of the driver 106 located near the window are required. ing. Note that there is a problem similar to the above for an occupant seated near a window such as a passenger seat (not shown) or a rear seat, and there is a need for a solution to the problem.

  The present invention has been made in view of the above circumstances, and the conditioned air blown out from above the vehicle is merged in front of the occupant, and the merged conditioned air is sucked below the vehicle, thereby occupant's body. It is related with the vehicle air conditioner which improves a passenger | crew's comfort by forming the air current which wraps up.

  In the vehicle air conditioner of the present invention, the vehicle is disposed on the shoulder of a passenger seated on a seat disposed on the vehicle or on the vehicle above the shoulder, and in the vehicle width direction of the vehicle from the center of the seat. Are disposed on the vehicle below the thigh of the occupant, and at least on the outer side or the inner side in the vehicle width direction of the vehicle than the center of the seat. The air blown out from the outer air outlet and the air blown out from the inner air outlet intersect in front of the occupant to form merging air, and the merging air Is sucked from the suction port.

  Further, in the vehicle air conditioner according to the present invention, the combined air flows downward or obliquely downward with respect to the vertical direction of the vehicle, hits a part of the occupant, and then is sucked from the suction port. To do.

  In addition, the vehicle air conditioner of the present invention includes at least a blowing air direction adjusting unit that adjusts a wind direction of the air blown from the outer blower outlet or a wind direction of the air blown from the inner blower outlet. The air direction of the air is adjusted by the blowing air direction adjusting means, and the suction port is disposed closer to the center of the seat than the center line of the air in contact with the outermost part of the occupant in the vehicle width direction of the vehicle. It is characterized by being.

  The vehicle air conditioner according to the present invention further includes wind direction control means for controlling the blowing air direction adjusting means.

  In the vehicle air conditioner of the present invention, the merged air is sucked from the suction port without hitting the occupant.

  Moreover, in the vehicle air conditioner of the present invention, the suction port is arranged outside or inside the seat in the vehicle width direction of the vehicle.

  In the vehicle air conditioner of the present invention, the region where the air forming the merged air intersects is on a virtual line connecting the air outlet and the suction port in the front-rear direction of the vehicle or behind the virtual line. It is located in.

  Moreover, in the vehicle air conditioner of the present invention, the region where the air that forms the merging air intersects is located in front of a virtual line connecting the air outlet and the air inlet in the front-rear direction of the vehicle. It is characterized by.

  The vehicle air conditioner according to the present invention further includes a flow rate adjusting unit capable of adjusting an amount of air blown from the outer air outlet and an amount of air blown from the inner air outlet.

  The vehicle air conditioner according to the present invention further includes a blowing control unit that controls the blowing amount by the flow rate adjusting means.

  In the vehicle air conditioner according to the present invention, the outlet is disposed above the shoulder of the occupant seated on the seat or above the shoulder, and the conditioned air blown out from above the vehicle intersects in front of the occupant and merges To do. The merged conditioned air flows substantially downward along the occupant and is sucked from a suction port disposed below the vehicle. Due to the flow of the conditioned air, an air flow that wraps around the occupant's body is formed, and the comfort of the occupant is enhanced.

  Further, in the vehicle air conditioner of the present invention, the combined conditioned air flows downward along the occupant's body, diffuses by hitting the occupant's lower body, etc., and is then sucked from the suction port disposed below the vehicle . An airflow that wraps up to the passenger's lower body is formed by the flow of the conditioned air.

  Moreover, in the vehicle air conditioner according to the present invention, the blowout air outlet is provided with a blowout air direction adjusting means to adjust the airflow direction of the air blown out from the blowout air outlet. An airflow that draws the diffused conditioned air toward the occupant and wraps it to the lower body of the occupant by arranging the suction port closer to the center of the seat than the center line of the conditioned air that contacts the outermost part of the occupant Is formed.

  Further, in the vehicle air conditioner of the present invention, the direction of the conditioned air is automatically controlled as appropriate according to the detection information from various sensors attached to the vehicle, the operation information by the occupant, etc., and the air flow of the conditioned air is controlled. As a result, passenger comfort is improved.

  In the vehicle air conditioner of the present invention, the combined conditioned air flows between the occupant and the vehicle window and the door trim, whereby an air layer is formed between the occupant and the vehicle window. The Then, a large amount of conditioned air can be flown to a region where heat is released or inflowed at the window or the like, and measures against temperature difference in the passenger compartment due to the conditioned air can be taken.

  Further, in the vehicle air conditioner of the present invention, the air inlet by the air conditioned air is formed along the window and the door trim of the vehicle by arranging the suction port in the door trim, and measures against the temperature difference in the passenger compartment due to the air conditioned air are taken. It can be carried out.

  Moreover, in the vehicle air conditioner of the present invention, the region where the conditioned air intersects and merges is located on the imaginary line connecting the air outlet and the suction port or behind the imaginary line. And the airflow which wraps a passenger | crew's body is formed because the conditioned air blown from the blower outlet and the combined conditioned airflow flow along the passenger.

  Moreover, in the vehicle air conditioner of the present invention, the region where the conditioned air intersects and merges is located in front of the imaginary line connecting the air outlet and the suction port. And the airflow which wraps a passenger | crew's body is formed because the merged air-conditioning wind is drawn in to the passenger | crew side.

  Moreover, in the vehicle air conditioner of the present invention, the air outlet is provided with a flow rate adjusting means, and the amount of conditioned air blown from the outer air outlet and the amount of air blown from the inner air outlet can be made different. The airflow of the conditioned air that has been combined is adjusted according to the amount of conditioned air blown, and a large amount of conditioned air is flowed to the area where heat is released or flows in a lot at the windows, etc. Can do.

  Further, in the vehicle air conditioner of the present invention, the amount of conditioned air blown is automatically controlled as appropriate according to detection information from various sensors attached to the vehicle, operation information by passengers, etc. The passenger comfort is improved by being controlled.

It is the schematic for demonstrating the vehicle by which the vehicle air conditioner of one Embodiment of this invention was arrange | positioned. It is the schematic explaining the structure of the vehicle air conditioner of one Embodiment of this invention. It is (A) sectional drawing and (B) sectional drawing explaining the blowing wind direction adjustment means of the vehicle air conditioner of one Embodiment of this invention. It is (A) front view and (B) side view explaining the 1st Example of the flow of the conditioned air in the vehicle air conditioner of one Embodiment of this invention. It is (A) front view and (B) side view explaining the 2nd Example of the flow of the conditioned air in the vehicle air conditioner of one Embodiment of this invention. It is (A) schematic side view and (B) schematic side view explaining the conventional vehicle air conditioning system.

  Hereinafter, a vehicle air conditioner according to an embodiment of the present invention will be described in detail with reference to the drawings. In the description of the embodiment, the same reference numerals are used for the same members in principle, and repeated descriptions are omitted.

  FIG. 1 is a schematic side view for explaining a vehicle 1 in which a vehicle air conditioner 3 according to this embodiment is provided. FIG. 2 is a schematic configuration diagram for explaining the vehicle air conditioner 3 according to the present embodiment. 3 (A) and 3 (B) are cross-sectional views illustrating the blowing air direction adjusting means of the vehicle air conditioner 3 of the present embodiment.

  As shown in FIG. 1, an air conditioning unit 4 of a vehicle air conditioner 3 is disposed in the back of the dashboard 2 of the vehicle 1. Air-conditioned air cooled or heated in the air-conditioning unit 4 is blown out into the passenger compartment through the air outlets 7R and 7L provided in the roof 6 above the passenger seat 5. On the other hand, a pair of suction ports 8R and 8L are arranged on the side surfaces of the inner and outer seat cushions 5A in the vehicle width direction. The vehicle air conditioner 3 is disposed, for example, on the passenger seat 5 and is used as a seat air conditioner. In addition, it replaces with the air-conditioning unit 4, and while using the existing HVAC (heating ventilation air conditioner), you may form a circulation air path by extending the duct connected to the said HVAC to the passenger seat 5. FIG.

  In the following description, the case where the vehicle air conditioner 3 is disposed on the passenger seat 5 will be described. However, the present invention is not limited to this case. It may be arranged on a sheet.

  As will be described in detail later, the air outlets 7R and 7L are located above the passenger seat 5 and are arranged in a pair on the inner side and the outer side in the vehicle width direction with respect to the center line 26 of the passenger seat 5 (see FIG. 4A). Has been. The conditioned air blown from the air outlets 7R and 7L flows from the upper part of the head of the occupant P to the front of the occupant P so as not to directly hit the head, and for example, crosses under the chin of the occupant P. , Join. The combined conditioned air flows substantially downward in front of the occupant P, hits the lower half of the occupant P's thighs, etc., diffuses to the surroundings, and is then sucked in from the suction ports 8R and 8L.

  Then, the conditioned air sucked from the suction ports 8R and 8L returns to the air conditioning unit 4 via the suction duct 9 disposed in the seat cushion 5A. On the other hand, the temperature of the returned conditioned air is adjusted in the air conditioning unit 4 or is blown out from the outlets 7R and 7L through the air duct 10 again while maintaining the temperature state. Although the air duct 10 is omitted in the middle of the drawing, the air duct 10 is disposed up to the roof 6 via a pillar (not shown).

  That is, most of the conditioned air blown out from the outlets 7R and 7L is immediately sucked from the inlets 8R and 8L, so that the conditioned air in the passenger compartment circulates and the load on the vehicle air conditioner 3 is reduced. 1 energy saving operation is realized.

  As shown in FIG. 2, the vehicle air conditioner 3 mainly includes an air conditioning unit 4, air outlets 7R and 7L, air inlets 8R and 8L, an air inlet duct 9, a blower duct 10, a control unit 11, Various sensors such as a solar radiation sensor 17, a room temperature sensor 18, and an outside air temperature sensor 19, and an operation switch 20 are provided. In the air conditioning unit 4, a chamber 12, an intake duct 13, a blower 14, an evaporator 15, and a heat core 16 are disposed.

  The control unit 11 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and is an electronic control unit that executes various calculations for vehicle air conditioning control ( ECU). And the control part 11 performs various calculations etc. based on the information detected from various sensors, such as the solar radiation sensor 17, the room temperature sensor 18, and the external temperature sensor 19, for example, The present conditions, such as a room temperature condition in a vehicle interior, are carried out. It discriminate | determines and adjusts the blowing amount, wind direction, temperature, etc. of the air-conditioning wind from 7R and 7L.

  For example, the chamber 12 is disposed in the back of the dashboard 2 (see FIG. 1) of the vehicle 1, and a blower 14 and an intake duct 13 are disposed on the upstream side of the chamber 12. The intake duct 13 branches into an outside air intake duct 13A that takes in outside air and an inside air intake duct 13B that takes in inside air. Then, the outside air intake duct 13 </ b> A and the inside air intake duct 13 </ b> B are switched by the switching damper 21, and air taken into the chamber 12 is selected. For example, when the blower 14 and the switching damper 21 are controlled by the control unit 11 and the blower 14 is driven by motor driving and the switching damper 21 closes the outside air intake duct 13A by motor driving, the inside air intake duct 13B Air-conditioning air in the passenger compartment is captured.

  In the chamber 12, an evaporator 15 as a cooler unit and a heater core 16 as a heater unit are disposed from the upstream side. The evaporator 15 is arranged with respect to almost the entire cross section of the chamber 12, and the heat core 16 is arranged with respect to the cross section of about the upper half of the chamber 12. An air path adjustment damper 22 is disposed between the evaporator 15 and the heat core 16, and the air volume passing through the heat core 16 is adjusted by the air path adjustment damper 22. For example, the air path adjustment damper 22 is controlled by the control unit 11, and the air path adjustment damper 22 closes the upper side of the chamber 12 by driving the motor, and the amount of air passing through the heat core 16 is reduced. The temperature of the conditioned air is lowered.

  A blower duct 10 is connected to the downstream side of the chamber 12, and the blower duct 10 branches into a right blower duct 10R and a left blower duct 10L in the roof 6 (see FIG. 1). 7L is provided. An air volume adjusting damper 23 is disposed at a branching location of the air duct 10, and the air volume adjusting damper 23 adjusts the flow area of the air duct 10 to adjust the air volume of the conditioned air blown from the outlets 7 </ b> R and 7 </ b> L. Yes. For example, the air volume adjusting damper 23 is controlled by the control unit 11, and when the right air duct 10R side on the air outlet 7R side is largely blocked by driving the motor, the air volume of the conditioned air blown from the air outlet 7L increases. .

  The suction duct 9 branches into a right suction duct 9R and a left suction duct 9L in the seat cushion 5A (see FIG. 1), and suction ports 8R and 8L are provided at the ends thereof. Note that, similarly to the air duct 10, an air volume adjusting damper may be provided at a branch point of the suction duct 9, and the air volume of the air conditioned air sucked from the suction ports 8 </ b> R and 8 </ b> L may be adjusted. Further, the suction ports 8R and 8L are not necessarily arranged on both sides of the seat cushion 5A, and may be arranged on at least one of the side surfaces depending on the application.

  In addition, although mentioned later for details, the air volume adjustment damper 23 is not necessarily limited to when it is arrange | positioned in the ventilation duct 10, For example, the shutter (not shown) which adjusts air volume to the blower outlets 7R and 7L When the louvers 24 and 25 (see FIG. 3) are provided, the air volume adjusting damper 23 may not be provided. Further, the air volume may be adjusted by combining the air volume adjusting damper 23 and the shutter (not shown) and the louvers 24 and 25.

  Various sensors such as a solar radiation sensor 17, a room temperature sensor 18, and an outside air temperature sensor 19 are disposed in the vehicle 1, and the sensors 17, 18, and 19 are connected to the control unit 11. The solar radiation sensor 17 is a sensor that detects the amount of solar radiation from the sun, the room temperature sensor 18 is a sensor that detects the air temperature inside the vehicle interior, and the outside air temperature sensor 19 is a sensor that detects the air temperature outside the vehicle interior. The control unit 11 performs various calculations based on information detected from the sensors 17, 18, 19 and the like, and controls, for example, a motor that drives the switching damper 21, the air path adjustment damper 22, and the air volume adjustment damper 23. Adjust the temperature and air volume of the conditioned air.

  The operation switch 20 includes a push button, a rotation button, a touch panel, and the like, and is disposed on, for example, an instrument panel. The passenger P (see FIG. 1) can adjust the air conditioning mode, the air conditioning temperature, the wind direction, the air volume, and the like by operating the operation switch 20. And the operation switch 20 is connected to the control part 11, and according to operation of the operation switch 20 by the passenger | crew P, the control part 11 performs various control, the air volume of the air-conditioning wind blown from the blower outlets 7R and 7L, and air-conditioning The temperature of the wind and the air volume of the conditioned air sucked from the suction ports 8R and 8L are adjusted.

  FIG. 3A shows a cross-sectional view in the vehicle width direction of the vehicle near the air outlet, and FIG. 3B shows a cross-sectional view in the front-rear direction of the vehicle near the air outlet. 3A and 3B, the air outlet 7L and the left air duct 10L are illustrated and described, but the air outlet 7R and the right air duct 10R have the same structure, and the description thereof is omitted.

  As shown in FIG. 3A, the air outlet 7L is disposed on the roof 6, and the left air duct 10L is provided with three louvers 24 that are rotatable in the vehicle width direction of the vehicle 1 on the air outlet 7L side. It is installed. The three louvers 24 are inclined in the vehicle width direction of the vehicle, so that the direction of the conditioned air blown from the outlet 7L is adjusted in the vehicle width direction of the vehicle 1. In addition, the left blast duct 10L is blocked by the three louvers 24 being arranged in the horizontal direction.

  On the other hand, as shown in FIG. 3B, three louvers 25 that are rotatable in the front-rear direction of the vehicle 1 are disposed in the left air duct 10 </ b> L above the vehicle 1 with respect to the louver 24. The three louvers 25 are inclined in the front-rear direction of the vehicle, so that the direction of the conditioned air blown from the outlet 7L is adjusted in the front-rear direction of the vehicle 1. Note that the three louvers 25 are arranged in the horizontal direction so that the left-side air duct 10L is closed.

  Although details will be described later, by adjusting the angle of the louvers 24 and 25 and adjusting the direction of the conditioned air blown from the air outlets 7R and 7L, the conditioned air blown from the air outlets 7R and 7L is changed to the occupant P. The area that intersects and merges in front is adjusted. The louvers 24 and 25 may be manually rotated or controlled by the control unit 11 (see FIG. 2) and rotated by a motor.

  First, a first example of the flow of conditioned air blown from the vehicle air conditioner 3 of the present embodiment will be described with reference to FIGS. 4 (A) and 4 (B). FIG. 4A is a front view for explaining the flow of conditioned air blown out from the vehicle air conditioner 3 of the present embodiment, and FIG. 4B is blown out of the vehicle air conditioner 3 of the present embodiment. It is a side view explaining the flow of the conditioned air.

  As shown in FIG. 4A, the passenger seat 5 includes a seat cushion 5A on which the occupant P is seated, a seat back 5B that extends upward from the rear of the seat cushion 5A and supports the back surface of the occupant P, and a seat back 5B. And a headrest 5C disposed at the upper end.

  The alternate long and short dash line indicates the center line 26 in the vehicle width direction of the passenger seat 5, but the pair of outlets 7 </ b> R and 7 </ b> L are arranged symmetrically in the vehicle width direction with respect to the center line 26 of the passenger seat 5. As illustrated, the conditioned air cooled or heated by the air conditioning unit 4 (see FIG. 2) is blown out from the air outlets 7R and 7L into the vehicle compartment via the air duct 10 (see FIG. 2). As described above, the direction of the conditioned air in the vehicle width direction of the vehicle 1 is adjusted by the louver 24 (see FIG. 3A).

  As indicated by arrows 27 and 28, the conditioned air is blown out toward the center line 26 side so as to avoid the head of the passenger P from the outlets 7R and 7L. For example, the conditioned air blown from the roof 6 directly hits the head of the occupant P, so that the conditioned air diffuses in the vicinity of the head, making it difficult for the conditioned air to reach the lower body of the occupant and enveloping the body. It becomes difficult to achieve air conditioning. In addition, the conditioned air during heating in winter or the like directly hits the face of the occupant P, so that the occupant P tends to feel uncomfortable. On the other hand, even in the air-conditioning wind during cooling such as summer, the air-conditioning wind directly hits the face of the occupant P may feel refreshed at the first stage, but tends to feel uncomfortable by continuing. It is in.

  As a result, as indicated by arrows 27 to 30, the conditioned air blown from the air outlets 7 </ b> R and 7 </ b> L passes through the vicinity of the face of the occupant P without directly hitting the head of the occupant P, Intersect around the chin of the occupant P indicated by the mark 31. The intersecting and merged conditioned air flows along the trunk of the occupant P substantially downward of the vehicle 1 as indicated by an arrow 32. Thereby, the airflow which wraps the passenger | crew's P body is formed, and the passenger | crew's P comfort is improved.

  For example, when heat rising from the passenger P causes an updraft around the passenger P and the heat is released from the shirt under the passenger's chin, the lower body of the passenger P is conditioned by the conditioned air combined with the heat. Can be pushed down to the side. Moreover, since the air-conditioning wind passes through the vicinity of the occupant P's face, the occupant P's face can be appropriately warmed or cooled, so that the comfort of the occupant P is improved.

  In this embodiment, the direction of the conditioned air is adjusted so that the angles α1 and β1 formed by the center lines 33 and 34 of the conditioned air blown out from the outlets 7R and 7L and the flat surface of the roof 6 are the same. ing. Here, the conditioned air blown out from the outlets 7R and 7L is blown out, for example, having substantially the same cross-sectional area as the opening areas of the outlets 7R and 7L. It is a line passing through the center of the cross section intersecting with the wind flow direction, and is indicated by a three-dot chain line.

  And in the vehicle width direction of the vehicle 1, the suction inlets 8R and 8L are arrange | positioned rather than the center lines 33 and 34 in contact with the seat cushion 5A at the center line 26 side of the passenger seat 5. For example, the seat cushion 5 </ b> A of the passenger seat 5 is provided with a pair of suction ports 8 </ b> R and 8 </ b> L on the inner and outer side surfaces.

  As described above, the combined conditioned air flows substantially downward along the trunk of the occupant P as shown by the arrow 32, and then hits the lower half of the thigh of the occupant P and the thigh of the occupant P. Spreads around the part. The conditioned air diffused around the thigh of the occupant P flows so as to wrap the occupant P along the lower half of the thigh of the occupant P, as indicated by arrows 35 to 38, and the suction port 8R, It is sucked from 8L. In other words, the conditioned air diffused around the thigh of the occupant P is sucked from the suction ports 8R and 8L so as to be pulled back toward the occupant P, so that the conditioned air along the lower half of the thigh of the occupant P Airflow is realized.

  The height at which the pair of outlets 7R and 7L are arranged is determined based on the body shape of the passenger P sitting on the passenger seat 5. As the body shape of the occupant P when determining the height, standardized body models AM50, AM95, etc. are appropriately adopted as a reference. The height of the shoulder of the occupant P is the height from the base of the arm, that is, from the vicinity of the armpit that is the lower part of the connecting portion between the trunk and the arm, to the vicinity of the base of the neck. This corresponds to the height from the vicinity of the scapula to the vicinity of the base of the neck.

  As shown in FIG. 4 (B), in the front-rear direction of the vehicle 1, a pair of outlets 7R, 7L are disposed, for example, on the roof 6 above the head of the occupant P or above the headrest 5C, and the inlets 8R, 8L are occupants. A pair is arranged on the side surface of the lower seat cushion 5A near the knee portion of P. A four-dot chain line indicates an imaginary line 39 connecting the centers of the air outlet 7L and the inlet 8L in the front-rear direction of the vehicle 1.

  As described above, the direction of the conditioned air in the front-rear direction of the vehicle 1 is adjusted by the louver 25 (see FIG. 3B), and the region where the conditioned air intersects indicated by the circle 31 is mainly an imaginary line 39. It is located between the upper region or the occupant P and the virtual line 39. With this structure, the conditioned air blown from the air outlets 7R, 7L is in front of the occupant P and intersects and merges in the vicinity of the trunk of the occupant P. And since most of the conditioned air flows to the lower body side of the occupant P, the conditioned air can reach the wide area of the occupant P, and the occupant P can be warmed or cooled, The comfort of the passenger P is enhanced. For example, when the suction port 8L is arranged on the front side of the seat cushion 5A, the conditioned air that has diffused around the thigh of the occupant P flows so as to wrap up to the vicinity of the occupant P's knees.

  As a modification of the first embodiment, the suction port 8L may be disposed on the rear side of the seat cushion 5A as indicated by the dotted line, and the imaginary line 39A may overlap the occupant P. In this case, by adjusting the direction of the conditioned air with the louver 25 (see FIG. 3B), the conditioned air blown from the outlets 7R and 7L flows to the front of the occupant P. The conditioned air intersects and merges at the front side of the vehicle 1. The combined conditioned air is likely to flow away from the occupant P, but is pulled back toward the occupant P through the suction ports 8R and 8L, thereby realizing the conditioned air that wraps the occupant P.

  In the first embodiment, the amount of air-conditioning air blown from the air outlets 7R and 7L is substantially the same, and as indicated by the arrow 32, the air-conditioning air that intersects and merges around the passenger's P-jaw area. Although the case where the vehicle 1 flows mainly downward in the vertical direction of the vehicle 1 has been described, the present invention is not limited to this case. As a modification of the first embodiment, for example, even when the air volume adjustment damper 23 is controlled and the amount of conditioned air blown from the outlet 7L is larger than the amount of conditioned air blown from the outlet 7R. good.

  In this case, as in the first embodiment, the conditioned air blown from the air outlets 7R, 7L intersects and merges around the occupant P under the chin, as indicated by a circle 31. The combined conditioned air is guided by the conditioned air blown from the air outlet 7L, and flows obliquely downward inside the vehicle 1 from the vertical direction of the vehicle 1. The combined conditioned air mainly hits and diffuses around the right thigh of the occupant P, and is then sucked from the suction ports 8R and 8L. That is, the amount of air blown from the air outlets 7R and 7L can be adjusted so that the air conditioned air can flow while being biased to one of the occupant P's bodies.

  For example, when the vehicle 1 is started in winter, the interior of the vehicle is generally cooled. However, the direct sunlight may enter the window 1 to be warmer than the center side of the vehicle 1. After the vehicle 1 is started, if the control unit 11 (see FIG. 2) determines that it is winter based on information detected from the solar radiation sensor 17 (see FIG. 2) of the vehicle 1, first, the outlet 7L The amount of the conditioned air blown from the air outlet 7R may be made larger than the amount of the conditioned air blown from the outlet 7R, and a large amount of the conditioned air warmed to the center side of the vehicle 1 may flow. And immediately after starting of the vehicle 1, the amount of blowing from the blower outlet 7L can be increased, and the center side of the vehicle 1 of the passenger | crew P can also be actively warmed with an air conditioning wind.

  Thereafter, after a certain period of time has elapsed since the start of the engine, for example, the entire interior of the vehicle is kept at a constant temperature by the conditioned air, the amount of air blown from the air outlets 7R and 7L can be made uniform. As described above, the amount of air blown from the outlets 7R and 7L is varied within the range where the combined conditioned air hits the lower half of the occupant P, such as the thigh, and the conditioned air is biased toward one side of the occupant P. As a result, the comfort of the occupant P is enhanced according to the purpose. At the time of starting the vehicle 1 in the winter season, by increasing the amount of conditioned air blown from the air outlet 7L, the left shoulder portion of the occupant P near the window and the vicinity thereof can be warmed at the same time.

  In addition, although the description has been given of the case where the conditioned air blown from the outlets 7R and 7L intersects and merges around the occupant P under the chin shown by the circle 31, the present invention is not limited to this case. The upper limit of the intersecting area is around the submandibular region, and the lower limit is above the thigh and around the navel of the trunk. That is, the effect mentioned above is acquired because the conditioned air blown out from the blower outlets 7R and 7L intersects at least before the combined conditioned air hits the lower body of the occupant P such as the thigh.

  Next, a second example of the flow of conditioned air blown from the vehicle air conditioner 3 of the present embodiment will be described with reference to FIGS. 5 (A) and 5 (B). FIG. 5A is a front view for explaining the flow of the conditioned air blown from the vehicle air conditioner 3 of the present embodiment, and FIG. 5B is the blowout of the vehicle air conditioner 3 of the present embodiment. It is a side view explaining the flow of the conditioned air. In the description of the second embodiment, the first embodiment described above will be referred to as appropriate.

  As shown in FIG. 5A, the pair of outlets 7R and 7L are arranged symmetrically in the vehicle width direction with respect to the center line 26 of the passenger seat 5. In the second embodiment, each of the conditioned air flows so that the angles α2 and β2 formed by the center lines 41 and 42 of the conditioned air blown from the air outlets 7R and 7L and the flat surface of the roof 6 are α2 <β2. The wind direction is adjusted. Specifically, the direction of the conditioned air is adjusted via the louver 24 (see FIG. 3A), and the conditioned air blown from the outlets 7R and 7L is round as shown by arrows 43 to 46. As indicated by a mark 47, the vehicle intersects and joins in front of the left side of the occupant P.

  On the other hand, the suction port 8L is disposed only on the side surface of the seat cushion 5A on the window 48 side of the vehicle 1, for example. Although details will be described later, in the case where an air layer is formed by conditioned air at the window of the vehicle 1 and measures against temperature difference in the vehicle 1 are taken, at least one suction port 8L may be disposed. As in the first embodiment shown in FIG. 4A, a pair of suction ports 8R and 8L may be arranged in the seat cushion 5A. In this case, the suction port 8R is provided with a shutter (not shown), A structure closed by a louver (not shown) or the like may be used. Further, the suction port 8R may be disposed on the center console.

  As shown in FIG. 5B, in the front-rear direction of the vehicle 1, the air outlets 7R, 7L are arranged on the roof 6 in front of the head of the passenger P, for example, so that the air is blown out from the air outlets 7R, 7L. The conditioned air can be passed through the vicinity of the face of the occupant P without directly hitting the head of the occupant P. As shown in FIG. 4B, a pair of the outlets 7R and 7L may be disposed on the roof 6 above the head of the occupant P. In this case, the louver 25 (see FIG. The direction of the conditioned air in the longitudinal direction of the vehicle 1 is adjusted via B).

  A four-dot chain line indicates an imaginary line 49 connecting the centers of the air outlet 7L and the inlet 8L in the front-rear direction of the vehicle 1. The region where the air-conditioning wind intersects indicated by a circle 47 is mainly located between the occupant P and the virtual line 49. With this structure, the conditioned air blown from the outlets 7R, 7L is in front of the occupant P, intersects near the side of the occupant P, and merges. Then, on the upper body side of the occupant P, the conditioned air flows along the occupant P, so that the occupant P can be warmed or cooled, and the comfort of the occupant P is enhanced. In summer, it is possible to cool the surrounding area where sweat is easily scratched.

  As shown in FIG. 5 (A), the crossed and merged conditioned air flows from the front of the trunk of the occupant P toward the window 48 and the door trim 51 as shown by the arrow 50, Flows diagonally downward. Thereafter, as indicated by an arrow 52, the combined conditioned air is sucked back toward the occupant P through the suction port 8L, so that the conditioned air flows along the side surface of the occupant P. In addition, for example, the amount of the conditioned air blown from the outlet 7L may be made larger than the amount of the conditioned air blown from the outlet 7R so that the combined conditioned air flows in the vicinity of the side surface of the passenger P. .

  Here, the vicinity of the window 48 of the vehicle 1 is likely to become hot in the summer due to the inflow of direct sunlight or external heat, and in the winter, it is likely to become cold due to the release of heat in the vehicle interior. This is a region where the temperature difference from the side tends to increase.

  Therefore, as indicated by arrows 50 and 52, the merged conditioned air descends on the left side of the occupant P, and most of it is sucked from the suction port 8L. That is, an air layer formed by conditioned air is formed between the occupant P and the window 48 and the door trim 51. Even if external heat flows in from the window 48 in the summer, it is difficult for the external heat to reach the occupant P. It is possible to prevent the left shoulder of the passenger P and the surrounding area from becoming too hot. In addition, the conditioned air by cooling flows around the left shoulder portion of the occupant P that is exposed to direct sunlight through the window 48 and the vicinity thereof, thereby cooling the occupant P's body and improving the comfort of the occupant P. . And it becomes easy to eliminate the temperature difference between the window side and the center side in the vehicle.

  Similarly, in winter, the air layer makes it difficult for heat in the passenger compartment to be released from the window 48, and the left shoulder portion of the passenger P and its surroundings are prevented from becoming too cold. In addition, the conditioned air by heating flows through the left shoulder portion and the vicinity of the occupant P, so that the body of the occupant P is warmed and the comfort of the occupant P is improved. In particular, when the vehicle 1 is traveling, heat in the passenger compartment is easily released to the outside of the vehicle through the window 48 due to the flow of air generated around the vehicle 1. The temperature difference is easily eliminated.

  Further, as a modification of the second embodiment, the suction port 8L may be provided in the door trim 51 in a region facing the seat cushion 5A. In this case, the amount of conditioned air blown from the outlet 7R is made larger than the amount of conditioned air blown from the outlet 7L, and the combined conditioned air flows in the vicinity of the window 48 and the door trim 51 of the vehicle 1. . And the flow of the air-conditioning wind along the window 48 and the door trim 51 of the vehicle 1 is implement | achieved by arrange | positioning the suction inlet 8L in the door trim 51. FIG.

  In the present embodiment, the case where the air outlets 7R, 7L and the like are arranged at positions symmetrical to the center line 26 of the passenger seat 5 to adjust the airflow direction of the conditioned air is described. However, the present invention is limited to this case. It is not a thing. For example, a camera or the like for detecting the position or posture of the occupant P sitting on the passenger seat 5 is provided in the vehicle 1 and blown out from the outlets 7R and 7L according to the posture or the like of the occupant P detected by the camera. You may control the blowing amount and the direction of the conditioned air. By this control, the occupant P is not necessarily seated in alignment with the center line 26 of the passenger seat 5, and conditioned air suitable for the occupant P is formed according to changes in the position, posture, etc. of the occupant P. As a result, the comfort of the passenger P is enhanced.

  Moreover, although the case where the blower outlets 7R and 7L are arranged on the roof 6 above the passenger seat 5 has been described, the present invention is not limited to this case. For example, the air outlets 7R, 7L may be disposed on the shoulder 1 of the passenger P sitting on the passenger seat 5 or on the vehicle 1 above the shoulder, and is the upper end surface of the seat back 5B of the passenger seat 5, and the headrest It may be arranged on both sides of 5C. Further, the front ends of the air ducts 10R and 10L on both sides may protrude from the upper end surface of the seat back 5B, and the air outlets 7R and 7L provided at the front ends may face the front side of the passenger seat 5. . In addition, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Vehicle 3 Vehicle air conditioner 4 Air conditioning unit 5 Passenger seat 6 Roof 7R, 7L Air outlet 8R, 8L Air inlet 9 Air inlet duct 10 Air duct 11 Controller 17 Solar radiation sensor 20 Operation switch 21 Switching damper 23 Air volume adjustment damper 24, 25 louver 26 center line 33, 34 center line 39 virtual line

Claims (10)

It is disposed on the shoulder of a passenger seated on a seat disposed on the vehicle or on the vehicle above the shoulder, and is disposed outside and inside the vehicle width direction of the vehicle from the center of the seat. The air outlet,
A suction port disposed in the vehicle below the thigh of the occupant and disposed at least outside or inside in the vehicle width direction of the vehicle from the center of the seat;
The air blown out from the outer air outlet and the air blown out from the inner air outlet intersect in front of the occupant to form merged air and suck the merged air from the suction port. A vehicle air conditioner.   2. The vehicle air conditioner according to claim 1, wherein the merged air flows downward or obliquely downward with respect to a vertical direction of the vehicle, and is sucked from the suction port after hitting a part of the occupant. . Blowing air direction adjusting means for adjusting at least the air direction blown out from the outer air outlet or the air direction blown out from the inner air outlet;
The air direction of the air is adjusted by the blowing air direction adjusting means, and the suction port is arranged closer to the center side of the seat than the center line of the air in contact with the outermost part of the occupant in the vehicle width direction of the vehicle. The vehicle air conditioner according to claim 2.   The vehicle air conditioner according to claim 3, further comprising: a wind direction control unit that controls the blowing air direction adjusting unit.   The vehicle air conditioner according to claim 1, wherein the combined air is sucked from the suction port without hitting the occupant.   The vehicle air conditioner according to claim 5, wherein the suction port is disposed outside or inside the seat in the vehicle width direction of the vehicle.   The region where the air that forms the merging air intersects is located on or behind a virtual line connecting the air outlet and the suction port in the front-rear direction of the vehicle. The vehicle air conditioner according to any one of claims 1 to 6.   The region where the air forming the merged air intersects is located in front of an imaginary line connecting the air outlet and the air inlet in the front-rear direction of the vehicle. The vehicle air conditioner according to any one of the above.   9. The flow rate adjusting device according to claim 1, further comprising: a flow rate adjusting unit capable of adjusting an amount of air blown from the outer air outlet and an amount of air blown from the inner air outlet. Vehicle air conditioner.   The vehicle air conditioner according to claim 9, further comprising: a blow control unit that controls the blow amount by the flow rate adjusting unit.

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