JP6640642B2 - Vehicle air conditioner - Google Patents

Description

  The present invention relates to an air conditioner for a vehicle, and more particularly to an air conditioner for a vehicle that forms an airflow that wraps around an occupant's body and that can perform airflow control suitable for cooling and heating.

  2. Description of the Related Art Conventionally, a vehicular air conditioner mounted on a vehicle is known that blows cold air, hot air, or the like from an air outlet provided in a dashboard, a seat, or the like of the vehicle.

  For example, Patent Literature 1 discloses a vehicle air conditioner having a front blowout portion provided on a dashboard. The front blowout section of the document has a blowout section that blows out conditioned air toward the face of an occupant seated in the front seat, and a blowout section that blows out conditioned air toward the feet of the occupant seated in the front seat.

  Further, for example, Patent Document 2 discloses a vehicle air conditioner having a first ventilation port and a second ventilation port that can be switched between during cooling and during heating. The first ventilation port is provided on the side of the seat, and the second ventilation port is provided on the occupant side of the seat, the backrest, and the head support of the seat. At the time of cooling, the air blown out from the second ventilation port hits the occupant directly, and is then sucked in from the first ventilation port. On the other hand, at the time of heating, the air blown out from the first ventilation port is sucked from the second ventilation port via around the occupant.

JP 2010-76516 A JP 2011-189768 A

  However, in the above-described vehicle air conditioner of the related art, there is a point to be improved in order to improve comfort during air conditioning. For example, it is preferable to form an airflow that wraps around the occupant's body as air conditioning that the occupant feels comfortable. However, in a configuration in which air is blown out from a blowout portion provided on a dashboard or the like of a vehicle and cool air or warm air is blown to a part of an occupant's body, as in the related art disclosed in Patent Document 1, It was not possible to form a highly comfortable airflow that wraps around the body.

  In addition, the airflow that the occupant feels comfortable differs between the time of cooling and the time of 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 occupant may feel uncomfortable because the warm air directly hits the occupant's face or the like. For this reason, it is difficult to achieve both comfort during cooling and during heating with control that simply reverses blowing and suction during cooling and during heating as in the related art described in Patent Literature 2.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to form an airflow that wraps around an occupant's body and to provide comfort by airflow control suitable for cooling and heating. It is an object of the present invention to provide a vehicle air conditioner capable of improving the air conditioning.

The air conditioner for a vehicle according to the present invention includes a seat cushion of a seat provided in a vehicle or a blowout portion disposed below the seat cushion, and a seat at a height of or above a shoulder of an occupant seated on the seat. A plurality of suction portions respectively arranged at different positions in the width direction, and a flow rate adjusting means capable of adjusting a suction amount of at least one of the suction portions and a suction amount of another of the suction portions, The flow rate adjusting means is operated in accordance with the temperature of the air blown out from the blowout portion , and the suction portion has an inside suction portion on the occupant side and an outside suction portion on the outside in the width direction of the seat, The flow rate adjusting means is capable of adjusting a suction amount of the inner suction portion and a suction amount of the outer suction portion .

  Further, the vehicle air conditioner of the present invention is characterized in that it has a control unit for controlling the flow rate adjusting means based on the temperature of the air blown from the blowing unit.

  Further, the vehicle air conditioner of the present invention has a circulating air path connecting the suction section and the blowing section, and the air sucked from the suction section flows from the blowing section through the circulating air path. It is characterized by being blown out.

  Further, the vehicle air conditioner of the present invention is provided with a heating means disposed in the circulating air passage to heat air blown out from the blowing portion, and a heating device provided in the circulating air passage and blown out from the blowing portion. A cooling unit that cools air that is cooled by the cooling unit, wherein the control unit increases a suction amount of the inner suction unit than a suction amount of the outer suction unit during cooling performed by the cooling unit. At the time of heating in which heating by heating means is performed, the suction amount of the outer suction portion is set to be larger than the suction amount of the inner suction portion.

  Further, the air conditioner for a vehicle according to the present invention is characterized in that the inside suction portion is provided above a seat back or a headrest of the seat, and the outside suction portion is provided above the seat back. And

The air conditioner for a vehicle according to the present invention includes a seat cushion of a seat provided in a vehicle or a blowout portion disposed below the seat cushion, and a seat at a height of or above a shoulder of an occupant seated on the seat. A plurality of suction portions respectively arranged at different positions in the width direction, and a flow rate adjusting means capable of adjusting a suction amount of at least one of the suction portions and a suction amount of another of the suction portions, The flow rate adjusting means is operated in accordance with the temperature of the air blown out from the blowing section, and the flow rate adjusting means has an opening / closing member for opening / closing the suction section or the circulating air passage to adjust a flow passage area.

  ADVANTAGE OF THE INVENTION According to the vehicle air conditioner of this invention, the seat cushion of the seat | toe arrange | positioned at a vehicle or the blowing part arrange | positioned under it, and the height of the shoulder part of the occupant who sits on the said seat or above it And a plurality of suction portions respectively disposed at different positions in the width direction of the sheet. Thereby, cold air or warm air can be flown along the occupant's body from below the occupant's trunk to above. Therefore, comfortable air conditioning is realized by an airflow that wraps around the occupant's body.

  Further, it has a flow rate adjusting means capable of adjusting the suction amount of at least one of the suction parts and the suction amount of the other suction parts, and the flow rate adjusting means according to the temperature of the air blown out from the blowing part. Operated. By operating the flow rate adjusting means, the suction amount of each of the plurality of suction portions is adjusted, so that the air flow changes. That is, the air flow can be controlled by the flow rate adjusting means. Then, by operating the flow rate adjusting means in accordance with the temperature of the air blown out from the blowing section, the cool air and the hot air are respectively flown to appropriate positions, and the comfort in the air conditioning operation is further enhanced.

  According to the vehicle air conditioner of the present invention, the vehicle air conditioner may include a control unit that controls the flow rate adjusting unit based on a temperature of the air blown from the blowout unit. Thus, under the control of the control unit, a suitable airflow according to the temperature of the blown air is formed and maintained. Therefore, comfortable air conditioning is performed in response to load fluctuations in cooling and heating, respectively.

  Further, according to the vehicle air conditioner of the present invention, the vehicle air conditioner has a circulation air passage connecting the suction portion and the blowout portion, and the air sucked from the suction portion is supplied to the blowout air through the circulation wind passage. It may be blown out from the part. Thereby, the occupant's feeling of comfort can be enhanced by the circulation of air through the blow-out section, the suction section, and the circulation air passage, and heating and cooling can be efficiently performed with little energy.

  Further, according to the vehicle air conditioner of the present invention, the suction portion has an inner suction portion on the occupant side and an outer suction portion on the outer side in the width direction of the seat, and the flow rate adjusting means includes The suction amount of the suction part and the suction amount of the outer suction part may be adjustable. Thus, when the suction amount of the inner suction portion is increased by the flow rate adjusting means, an airflow flowing near the occupant's neck can be formed. In addition, when the suction amount of the outside suction portion is increased by the flow rate adjusting means, it is possible to form an airflow flowing through the occupant's neck and a portion away from the face. Therefore, a suitable airflow can be formed according to the air conditioning load, and the occupant's comfort can be enhanced.

  Further, according to the vehicle air conditioner of the present invention, the heating means disposed in the circulation air passage and heating the air blown out from the blowing portion, and the heating device disposed in the circulation air passage and from the blowing portion Cooling means for cooling the blown air, wherein the control unit increases the suction amount of the inner suction part more than the suction amount of the outer suction part during cooling in which cooling by the cooling means is performed. May be. Thereby, at the time of cooling, the cool air can be flown near the neck and the face of the occupant, and the occupant's refreshing feeling can be enhanced.

  Further, at the time of heating in which the heating by the heating means is performed, the suction amount of the outer suction portion may be larger than the suction amount of the inner suction portion. Thereby, it is possible to prevent the hot air from directly hitting the neck, the face, and the like by flowing the hot air to a place away from the neck and the face of the occupant. As a result, it is possible to reduce discomfort caused by the hot air directly hitting the neck and the face.

  Further, according to the vehicle air conditioner of the present invention, the inside suction portion may be provided above a seat back or a headrest of the seat, and the outside suction portion may be provided above the seat back. good. As described above, the inside suction portion and the outside suction portion are disposed above the seat back, so that warm air or cold air flows from below the occupant's trunk to the occupant's shoulders so as to wrap the occupant's body. Therefore, the body of the occupant can be efficiently cooled or warmed. In addition, since the inner suction portion is provided in the headrest, cool air can be flowed in the vicinity of the occupant's head, so that the occupant's cooling sensation can be enhanced and the comfort during cooling can be further enhanced.

  Further, according to the vehicle air conditioner of the present invention, the flow rate adjusting means may include an opening / closing member for opening / closing the suction section or the circulating air path to adjust a flow path area. Thus, by opening and closing the opening and closing member, the suction amount of each suction portion can be appropriately adjusted.

1 is a schematic diagram illustrating a vehicle provided with a vehicle air conditioner according to an embodiment of the present invention. It is a schematic diagram showing the composition of the air conditioner for vehicles concerning an embodiment of the present invention. 1A is a perspective view and FIG. 2B is a plan view of a seat having a vehicle air conditioner according to an embodiment of the present invention. It is a front view of the sheet which shows the air flow of (A) at the time of cooling, and at the time of (B) heating of the air conditioner for vehicles concerning an embodiment of the present invention. It is sectional drawing near the suction part which shows (A) at the time of cooling and (B) at the time of heating of the air conditioner for vehicles which concerns on other embodiment of this invention. (A) A state where an inner suction portion is open, (B) a state where an inner suction portion and an outer suction portion are open, and (C) an outer suction portion of a vehicle air conditioner according to another embodiment of the present invention. It is a top view near the suction part which shows the state which opened. It is the (A) top view near the suction part of the air conditioner for vehicles concerning other embodiments of the present invention, (B) the sectional view showing cooling, and (C) the sectional view showing heating. It is the (A) top view near the suction part of the air conditioner for vehicles concerning other embodiments of the present invention, (B) the sectional view showing cooling, and (C) the sectional view showing heating. It is sectional drawing near the suction part of the vehicle air conditioner which concerns on other embodiment of this invention.

  Hereinafter, a vehicle air conditioner according to an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic side view for explaining a vehicle 90 provided with the vehicle air conditioner 1 of the present embodiment. The vehicle air conditioner 1 is an air conditioner that forms an airflow that wraps around the body of the occupant P and can perform airflow control appropriate for cooling and heating. In this description, of the plurality of seats provided in the vehicle 90, the driver's seat 7 will be described, and description of the similarly formed passenger seat and rear seat will be omitted.

  As shown in FIG. 1, an air conditioning unit 10 arranged inside or below the seat 7 or inside the dashboard 2 is provided inside the vehicle 90. The air-conditioning unit 10 is connected to a ventilation duct 11 and a suction duct 12 that are connected to the vehicle interior. That is, the air duct 11, the air conditioning unit 10, and the suction duct 12 form a circulating air path for the conditioned air. In addition, an existing HVAC (heating ventilation air conditioner) may be used instead of the air conditioning unit 10, and a duct connected to the HVAC may be extended to the seat 7 to form a circulation air passage.

  The air conditioning unit 10 has a cooling unit for cooling air and a heating unit for heating. The air sent to the air conditioning unit 10 is cooled or heated, or is blown to the blow duct 11 while keeping the temperature.

  The air duct 11 is connected to the blowout section 6 arranged on the seat cushion 7A of the seat 7. The blowout section 6 is an opening that is connected from the air duct 11 into the vehicle interior, and is arranged so as to face the upper side of the vehicle 90. The air blown from the air conditioning unit 10 is blown out from the blowing part 6 to the vicinity of the thigh of the occupant P sitting on the seat 7 via the blowing duct 11.

  The suction duct 12 is connected to a suction portion 25 provided above the seat back 7B of the seat 7. The suction portion 25 is an opening formed on the upper end surface of the seat back 7B and connected to the suction duct 12 from the vehicle interior, and a plurality of suction portions 25 are formed on both sides of the headrest 7C. The air in the cabin of the vehicle 90 is sucked from the suction part 25 and returns to the air conditioning unit 10 via the suction duct 12.

  As described above, the blowing portion 6 is formed in the seat cushion 7A and the suction portion 25 is formed in the upper portion of the seat back 7B, so that the body of the occupant P is moved upward from below the trunk of the occupant P. And cool air or hot air can flow. Thereby, an airflow that wraps around the body of the occupant P is formed, and the comfort of the occupant P is enhanced.

  Most of the conditioned air blown out from the blowout portion 6 and flowing along the body of the occupant P is almost immediately sucked from the suction portion 25. As described above, the conditioned air in the passenger compartment mainly circulates in the vicinity of the occupant P, so that the load of the air conditioning unit 10 is smaller than that of the conventional air conditioning in which the conditioned air is circulated and cooled or heated in the entire passenger compartment. Is reduced. Thereby, comfortable and energy-saving air conditioning in the vehicle 90 is realized.

  The air conditioning unit 10 may be connected to a not-shown outside air intake duct for taking in air from outside of the vehicle 90, a not-shown ventilation duct and a suction duct connected to a not-shown rear seat, and the like. Further, the air-conditioning unit 10 may be connected to a ventilation duct (not shown) connected to an air outlet (not shown) provided in the dashboard 2 or the like.

  FIG. 2 is a schematic diagram illustrating the configuration of the vehicle air conditioner 1. As shown in FIG. 2, the suction portion 25 has a pair of inner suction portions 26R and 26L and a pair of outer suction portions 27R and 27L, which will be described in detail later.

  The suction duct 12 branches from the air conditioning unit 10 to the suction unit 25, and is connected to the inner suction units 26R and 26L and the outer suction units 27R and 27L, respectively. That is, the suction ducts 12 connected to the inner suction portions 26R and 26L and the outer suction portions 27R and 27L are joined and connected to the air conditioning unit 10.

  The suction duct 12 is provided with a suction damper 13 serving as a flow rate adjusting means. The suction damper 13 has a substantially plate-shaped opening / closing member rotatably provided in the suction duct 12. The opening / closing member includes an air passage connected to the inner suction portions 26 </ b> R and 26 </ b> L of the suction duct 12, and an outer suction portion. By opening and closing the air passages leading to 27R and 27L, the respective flow passage areas can be adjusted.

  By switching the opening / closing member of the suction damper 13, the ratio between the suction amount from the inner suction portions 26R and 26L and the suction amount from the outer suction portions 27R and 27L is adjusted. Of course, the opening / closing operation of the suction damper 13 may alternatively switch between a case where air is sucked from the inner suction portions 26R and 26L and a case where air is sucked from the outer suction portions 27R and 27L. .

  The air conditioning unit 10 mainly includes various sensors such as a control unit 23, a chamber 14, a blower 15, an evaporator 16, a heater core 17, a solar radiation sensor 18, a room temperature sensor 19, an outside air temperature sensor 20, and an air conditioning temperature sensor 21. And an operation switch 22.

  The control unit 23 is configured to include a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and performs an electronic control unit ( ECU). The control unit 23 performs various calculations and the like based on information detected from various sensors such as the solar radiation sensor 18, the room temperature sensor 19, and the outside air temperature sensor 20, for example, to determine the current state of the room temperature and the like in the vehicle compartment. Judge and control each component device.

  The air conditioning unit 10 has a circulation air passage formed by the chamber 14. The suction duct 12 is connected to the upstream side of the chamber 14, and the ventilation duct 11 is attached to the downstream side of the chamber 14. In the chamber 14, an evaporator 16 as a cooling means and a heater core 17 as a heating means are arranged from the upstream side.

  The evaporator 16 is disposed over substantially the entire cross section of the chamber 14, and the heater core 17 is disposed over approximately half the cross section of the chamber 14. An air path adjustment damper is provided between the evaporator 16 and the heater core 17, and the amount of air passing through the heater core 17 is adjusted by the air path adjustment damper. For example, the air path adjustment damper is controlled by the control unit 23, and the air path adjustment damper closes a large portion of the heater core 17 of the chamber 14 by driving a motor, and is blown into the vehicle interior by reducing the amount of air passing through the heater core 17. The temperature of the conditioned air becomes lower.

  Various sensors such as a solar radiation sensor 18, a room temperature sensor 19, an outside air temperature sensor 20, and an air conditioning temperature sensor 21 are provided in the vehicle 90 and connected to the control unit 23. The solar radiation sensor 18 is a sensor that detects the amount of solar radiation from the sun, the room temperature sensor 19 is a sensor that detects the air temperature in the vehicle interior, and the outside air temperature sensor 20 is a sensor that detects the air temperature outside the vehicle interior. The air-conditioning temperature sensor 21 is a sensor that measures the temperature of the air blown out from the blowout section 6, and is provided, for example, downstream of the heater core 17 and upstream of the blowout section 6.

  The control unit 23 performs various calculations based on information detected from the sensors 18, 19, 20, 21 and the like, and controls, for example, the blower 15, the air path adjustment damper, the suction damper 13 and the like, And the suction amount of the suction section 25 are adjusted.

  The operation switch 22 includes a push button, a rotation button, a touch panel, and the like, and is disposed on, for example, an instrument panel. The occupant 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 22. The operation switch 22 is connected to the control unit 23, and the control unit 23 performs various controls in accordance with the operation of the operation switch 22 by the occupant P, and the suction amount from the suction unit 25, the temperature of the conditioned air, and the like are adjusted. You.

  FIG. 3A is a perspective view of a seat 7 on which the vehicle air conditioner 1 is disposed, and FIG. 3B is a plan view of the seat 7. The dashed line shown in FIG. 3 indicates the center line CL of the seat 7 in the vehicle width direction.

  As shown in FIG. 3A, the seat 7 includes a seat cushion 7A on which an occupant P (see FIG. 1) is seated, a seat back 7B extending upward from the rear of the seat cushion 7A and supporting the back of the occupant P, A headrest 7C disposed at the upper end of the seatback 7B.

  A pair of outlets 6 are arranged on the upper surface side of the seat cushion 7A. The pair of outlets 6 are disposed substantially symmetrically in the vehicle width direction with respect to the center line CL of the seat 7. The blowout portion 6 is disposed, for example, near the end on the upper surface side of the seat cushion 7A and on a surface inclined toward the center line CL. In addition, a hole or the like formed in the seat cushion 7A or the like for passing a seat belt (not shown) or a seat belt connector, or the like, may be used as the blowing section 6.

  The conditioned air blown from the air conditioning unit 10 (see FIG. 2) is blown out from the blowout section 6 into the vehicle interior via the blower duct 11. More specifically, the conditioned air is blown out from the blowout section 6 toward the upper side of the vehicle 90 (see FIG. 1) so as to wrap the lower body of the occupant P along the thighs of the occupant P.

  In addition, the blowing part 6 is formed as an opening extending in the front-rear direction of the vehicle 90, but is not limited to this shape. For example, a plurality of substantially circular blowing portions 6 smaller than the opening may be arranged at predetermined intervals in the front-rear direction of the vehicle 90, and the entire upper surface of the seat cushion 7A is substantially smaller than the opening. A plurality of circular blowing portions 6 may be arranged.

  In addition, the blowing section 6 may be provided on a side surface of the seat cushion 7A, below the seat cushion 7A, or the like. By providing the blowing section 6 below the seat cushion 7A, it is possible to form an airflow that wraps the entire body from the feet of the occupant P.

  As shown in FIG. 3B, the height at which the suction portion 25 is arranged is determined based on the body shape of the occupant P sitting on the seat 7. As a body type of the occupant P when determining the height, a standardized body type model AM50, AM95, or the like is appropriately adopted as a reference.

  Specifically, the suction portion 25 is formed at the height of the shoulder portion of the occupant P sitting on the seat 7 or at an upper portion thereof (see FIG. 4 (A)). Thereby, the conditioned air can flow near the shoulder of the occupant P, and an airflow that wraps around the occupant P's body can be formed.

  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, which is the lower part of the connection part between the trunk and the arm, to the vicinity of the base of the neck, in other words, It corresponds to the height from the vicinity of the scapula to the vicinity of the base of the neck. Further, the suction portion 25 may be provided on the headrest 7C, the roof of the vehicle 90, or the like, for example, above the shoulder of the occupant P.

  In addition, the blowing section 25 may be formed by using a hole or the like formed in the seat back 7B or the like for passing a seat belt or the like (not shown). That is, a hole for passing a seat belt or the like may be used as the blowout portion 25, or the blowout portion 25 may be formed in a resin member or the like in which the holes and the like are formed.

  The pair of inner suction portions 26R and 26L are formed on the upper portion of the seat back 7B, on both sides of the headrest 7C, and near the occupant P. More specifically, the inner suction portions 26R and 26L are formed at positions substantially equidistant from the center line CL in the width direction of the sheet 7. Each of the inner suction portions 26R and 26L is formed as an opening extending in the vehicle width direction of the vehicle 90, and has substantially the same shape.

  Note that the shapes of the inner suction portions 26R and 26L are not limited to the above. For example, a plurality of openings, such as substantially circular shapes smaller than the above-described openings, are arranged at predetermined intervals in the width direction of the sheet 7. It may be arranged.

  Further, the inner suction portions 26R and 26L may be provided on the headrest 7C or may be provided on the roof. By providing the inner suction portions 26R and 26L on the headrest 7C and the roof, the conditioned air can be blown to the vicinity of the head of the occupant P. In particular, in the cooling operation, the cool air sucked into the inner suction portions 26R and 26L flows near the head of the occupant P, thereby increasing the refreshing feeling of the occupant P.

  The pair of outer suction portions 27R and 27L are located above the seat back 7B, and are located outside the inner suction portions 26R and 26L in the width direction of the seat 7, that is, in the width direction of the seat 7 from the occupant P seated on the seat 7. It is formed at a remote position. The pair of outer suction portions 27R and 27L are each formed as an opening extending in the vehicle width direction of the vehicle 90, and have substantially the same shape.

  The shapes of the outer suction portions 27R and 27L are not limited to the above, and for example, a plurality of openings, such as substantially circular shapes smaller than the above-mentioned openings, are arranged at predetermined intervals in the width direction of the sheet 7. It may be arranged.

  As described above, by changing the position in the width direction of the seat 7, the inner suction portions 26R and 26L formed at positions close to the occupant P, and the outer suction portions 27R and 27L formed at positions distant from the occupant P, Is provided, suitable airflow control can be performed.

  Specifically, when the suction amounts of the inner suction portions 26R and 26L are increased, an airflow that flows through the neck of the occupant P and the vicinity of the face can be formed. On the other hand, when the suction amount of the outside suction portions 27R and 27L is increased, an airflow that flows through the occupant P away from the neck and the face can be formed.

  This airflow control will be described in detail with reference to FIGS. FIG. 4A is a front view of the seat 7 showing the flow of air during cooling of the vehicle air conditioner 1, and FIG. 4B shows the flow of air during heating of the vehicle air conditioner 1. FIG. 7 is a front view of the seat 7.

  As shown in FIG. 4 (A), the conditioned air supplied into the vehicle cabin during the air-conditioning operation is blown out from a pair of blowing portions 6 formed on the seat cushion 7A. In other words, the conditioned air blown out from the blowing section 6 is blown from the thigh of the occupant P along the upper part of the occupant P so as to wrap the lower body of the occupant P.

  Here, referring to FIG. 2, air conditioning temperature sensor 21 detects the temperature of the conditioned air blown out from blowing section 6. The detected temperature is transmitted to the control unit 23, and the control unit 23 controls the suction damper 13 based on the temperature.

  When the conditioned air blown out from the blowout section 6 is lower than a predetermined temperature, for example, during cooling, the control section 23 switches the suction damper 13 so that the suction amounts of the inside suction sections 26R and 26L are reduced to the outside suction sections. Control is performed so as to be larger than the suction amounts of 27R and 27L.

  Thereby, referring to FIG. 4 (A), the cool air blown out from blowing section 6 is directed substantially toward the center in the width direction of seat 7 so as to wrap the lower body of occupant P along the thighs of occupant P. And rises substantially at the center in the width direction of the seat 7 toward the vicinity of the shoulder of the occupant P. The rising cold air is sucked into the inner suction portions 26R and 27L formed near the neck of the occupant P.

  As described above, during the cooling, the cool air can be flown so as to wrap the entire body of the occupant P, and the cool air can be flown close to the neck and the face of the occupant P. Therefore, cold air can be applied to the neck, the face, and the like, and the occupant P can feel more refreshed. Further, by sucking air from the inner suction portions 26R and 26L near the shoulders of the occupant P, heat generated from the occupant P can be efficiently sucked, and the occupant P can be efficiently cooled.

  When the conditioned air is higher than a predetermined temperature, for example, during heating, with reference to FIG. 2, the control unit 23 switches the suction damper 13 so that the suction amounts of the outside suction units 27R and 27L become Control is performed so as to be larger than the suction amount of the suction portions 26R and 26L.

  As shown in FIG. 4 (B), the warm air blown out from the blowout portion 6 flows toward the substantially center in the width direction of the seat 7 so as to wrap the lower body of the occupant P along the thigh of the occupant P. Rise. Then, the warm air is sucked into the outer suction portions 27R and 27L formed at positions distant from the neck and the face of the occupant P. Thereby, the warm air can be flowed so as to wrap the body of the occupant P, and the comfort of the occupant P can be improved.

  In addition, when the warm air is sucked from the outside suction portions 27R and 27L formed at positions away from the neck and the face of the occupant P, the warm air may be directly blown on the neck and the face of the occupant P. Is suppressed. Therefore, discomfort caused by direct contact of the warm air with the neck and face is reduced, and the comfort of the occupant P is further enhanced.

  As described above, the suction damper 13 serving as a flow rate adjusting means is operated in accordance with the temperature of the blown air to adjust the suction amount of the suction portion 25, so that the conditioned air flows around the occupant P. Can be changed. Thereby, the cool air and the warm air can be flown to an appropriate position with respect to the occupant P, and the comfort of the occupant P can be enhanced.

  Next, a modification of the vehicle air conditioner 1 will be described in detail with reference to FIGS. Hereinafter, the inner suction part 26L and the outer suction part 27L formed on the left side of the sheet 7 will be described, and the description will be omitted on the right side of the sheet 7 formed in substantially the same shape. In FIGS. 5 to 9, components having the same or similar functions and effects as those of the embodiment described above are denoted by the same reference numerals, and description thereof will be omitted.

  FIGS. 5A and 5B are cross-sectional views of the seat back 7B near the inner suction portion 26L and the outer suction portion 27L showing a modified example of the vehicle air conditioner 1, and FIG. FIG. 5B shows a state at the time of heating.

  As shown in FIGS. 5A and 5B, in the suction duct 12 connected to the inner suction portion 26L and the outer suction portion 27L, a damper as an opening / closing member serving as a flow rate adjusting means is provided in the vicinity of each suction portion 25. 131 and 132 are provided. The dampers 131 and 132 have a substantially plate shape, and are rotatably attached to the suction duct 12. Due to the inclination of the dampers 131 and 132, the flow passage area of the suction duct 12 changes, and the suction amounts of the inner suction portion 26L and the outer suction portion 27L are adjusted respectively.

  For example, as shown in FIG. 5A, at the time of cooling, the damper 131 in the vicinity of the inner suction portion 26L is opened so as to be substantially parallel to the suction duct 12, so that a large suction amount from the inner suction portion 26L. Secured. Further, the damper 132 near the outer suction portion 27L is substantially perpendicular to the suction duct 12, so that the suction amount from the outer suction portion 27L is reduced.

  Further, as shown in FIG. 5B, during heating, the damper 131 on the inner suction portion 26L side may be closed and the damper 132 on the outer suction portion 27L side may be opened. As a result, the amount of suction from the outer suction portion 27L increases.

  Further, the suction unit 25 may be provided with louvers 133 and 134 as wind direction control means. The louvers 133 and 134 have their opening sides inclined toward the inside of the seat 7, that is, toward the occupant P (see FIG. 4). Accordingly, the inner suction portion 26L and the outer suction portion 27L easily suck the air on the occupant P side, and as a result, an airflow that wraps around the occupant P's body is easily formed.

  Further, the louver 134 provided in the outer suction portion 27L may have a smaller inclination than the louver 133 provided in the inner suction portion 26L. Further, the louver 133 may have an open end facing the front side. Thereby, for example, at the time of heating, an airflow can be formed at a position distant from the neck and the face of the occupant P, and discomfort due to warm air can be reduced. Further, the louvers 133 and 134 may be of a fixed type or a variable type capable of adjusting the wind direction.

  FIGS. 6A to 6C are plan views of the seat back 7B in the vicinity of the inside suction portion 26L and the outside suction portion 27L showing another modified example of the vehicle air conditioner 1. FIG. The state where the inner suction part 26L is open, FIG. 6 (B) is the state where the inner suction part 26L and the outer suction part 27L are open, and FIG. 6 (C) is the state where the outer suction part 27L is open. Indicates the status. In addition, the hatched part shown in FIG. 6 has shown the opening part OP which can be connected to the inside of the suction duct 12 from a vehicle interior, and air can flow.

  As shown in FIG. 6A, a shutter 234 serving as a flow rate adjusting unit is provided near the suction unit 25. The shutter 234 is an opening / closing member that adjusts the flow passage area of the suction duct 12 (see FIG. 5). The shutter 234 is attached substantially vertically to the suction duct 12 and slidably in the left-right direction so as to close the suction duct 12. The shutter 234 has a through-hole 235 formed therein. The through-hole 235 is formed, for example, in a substantially elongated hole shape in substantially the same direction as the suction portion 25 formed in a substantially elongated hole shape.

  When the shutter 234 configured as described above slides left and right, the position and size of the opening OP, which is the overlapping portion between the opening of the suction portion 25 and the through hole 235, change, and the inside suction portion 26L and the outside suction portion 26L are changed. The suction amount from the portion 27L is adjusted. The through hole 235 may be formed in another shape such as a substantially rectangular shape, a substantially triangular shape, a substantially circular shape, or a plurality of through holes 235.

  For example, at the time of cooling or the like, as shown in FIG. 6A, the opening OP is formed by overlapping the through hole 235 of the shutter 234 with the opening of the inner suction portion 26L, so that the opening portion OP from the inner suction portion 26L is formed. The suction amount can be increased.

  Also, as shown in FIG. 6B, the through-hole 235 of the shutter 234 overlaps with the openings of both the inner suction portion 26L and the outer suction portion 27L to form the opening OP. It can be adjusted so that air is sucked in from both the outer suction portions 27L.

  In addition, for example, at the time of heating or the like, as shown in FIG. 6C, the opening OP is formed by overlapping the through hole 235 with the opening of the outer suction portion 27L, so that suction from the outer suction portion 27L is performed. The amount can be increased.

  FIG. 7A is a plan view of the seat back 7B near the inner suction portion 26L and the outer suction portion 27L showing another modified example of the vehicle air conditioner 1, and FIG. 7B shows a state at the time of cooling. FIG. 7C is a cross-sectional view of the seat back 7B, and FIG. 7C is a cross-sectional view of the seat back 7B showing a heating state. Note that a hatched portion shown in FIG. 7A indicates an opening OP through which air can flow.

  As shown in FIGS. 7A to 7C, fixed plates 331 and 332 in which a plurality of through holes 335 and 336 are respectively formed, and a plurality of through holes 337 and 338 are formed in the suction duct 12. And shutters 333 and 334 as opening / closing members. As the shutters 333 and 334 slide in the horizontal direction, the area of the opening OP, which is the overlapping portion of the through holes 335 and 336 and the through holes 337 and 338, changes, and the area from the inner suction portion 26L and the outer suction portion 27L is changed. The suction volume can be adjusted individually.

  For example, at the time of cooling, as shown in FIGS. 7A and 7B, the opening OP on the side of the inner suction portion 26L is enlarged to increase the suction amount of the inner suction portion 26L, and at the time of heating, as shown in FIG. As shown in the figure, the opening OP on the outer suction portion 27L side can be enlarged to increase the amount of suction from the outer suction portion 27L.

  The shutter 333 of the inner suction portion 26L and the shutter 334 of the outer suction portion 27L may be configured to slide in conjunction with each other, or may be configured to be individually slidable.

  Further, the vicinity of the suction portion 25 may be formed obliquely so as to suck air from an oblique direction inside or forward of the seat 7. With such a configuration, the air on the occupant P side (see FIG. 4) can be easily sucked, and a suitable airflow that wraps around the occupant P can be formed.

  FIG. 8A is a plan view of the seat back 7B in the vicinity of the inside suction portion 26L and the outside suction portion 27L showing another modification of the vehicle air conditioner 1, and FIG. 8B shows a state at the time of cooling. FIG. 8C is a cross-sectional view of the seat back 7B, and FIG. 8C is a cross-sectional view of the same seat back 7B during heating. The hatched portion shown in FIG. 8A indicates an opening OP through which air can flow.

  As shown in FIGS. 8A to 8C, louvers 433 and 434, which are rotatable opening / closing members serving as flow rate adjusting means and wind direction adjusting means, may be attached near the suction portion 25. . By changing the inclination of the louvers 433 and 434, the suction amount and the suction wind direction can be adjusted for each of the inner suction portion 26L and the outer suction portion 27L.

  For example, during cooling, as shown in FIGS. 8A and 8B, the louver 433 may be opened to increase the opening OP of the inner suction portion 26L and increase the suction amount of the outer suction portion 27L. At this time, air may be sucked in from the width direction inside of the sheet 7 by the inclination of the louver 433.

  Further, for example, during heating, as shown in FIG. 8C, the louver 434 can be opened to increase the opening OP of the outer suction portion 27L, thereby increasing the suction amount from the outer suction portion 27L. At this time, by adjusting the inclination of the louver 434, it is possible to adjust the direction of the sucked air.

  FIG. 9 is a cross-sectional view of the vicinity of the suction unit 25 showing another modified example of the vehicle air conditioner 1. As shown in FIG. 9, a cover 538 formed as a substantially L-shaped air direction adjusting means may be attached to the suction portion 25. Inside the cover 538, an air passage through which air can pass from the vehicle interior toward the suction duct 12 is formed. By providing such a cover 538, the directions of the air sucked into the inner suction portion 26L and the outer suction portion 27L can be appropriately adjusted.

  The cover 538 may be rotatably mounted, for example, so that the direction of the opening can be changed. By rotating the cover 538 in this manner, the suction direction of the suction unit 25 can be suitably adjusted according to the air conditioning load or the like.

  As mentioned above, although the embodiment of the present invention was shown, the present invention is not limited to the above-mentioned embodiment. For example, in the vehicle 90, a camera or the like for detecting the position, posture, etc. of the occupant P sitting on the seat 7 is provided, and the suction amount and the suction amount of the suction unit 25 are determined in accordance with the posture, etc. of the occupant P detected by the camera. The wind direction and the like may be controlled. Accordingly, even if the position, posture, and the like of the occupant P change, air conditioning air suitable for the posture, etc. of the occupant P can be formed, and air conditioning with high comfort can be performed. In addition, various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Vehicle air conditioner 6 Blow-out part 7 Seat 7A Seat cushion 7B Seat back 7C Headrest 10 Air-conditioning unit 11 Blow duct 12 Suction duct 13 Suction damper 14 Chamber 15 Blower 16 Evaporator 17 Heater core 18 Solar sensor 19 Room temperature sensor 20 Outside air temperature sensor 21 Air conditioning temperature sensor 22 Operation switch 23 Control unit 25 Suction unit 26R, 26L Inside suction unit 27R, 27L Outside suction unit 90 Vehicle 131, 132 Damper 133, 134, 433, 434 Louver 234, 333, 334 Shutter 235, 335, 336, 337, 338 Through hole 331, 332 Fixing plate 538 Cover

Claims (12)

A seat cushion of a seat arranged in the vehicle or a blowing portion arranged below the seat cushion,
A plurality of suction portions respectively disposed at different positions in the width direction of the seat above or above the shoulder height of the occupant seated on the seat,
Flow rate adjusting means capable of adjusting the suction amount of at least one of the suction portions and the suction amount of the other suction portions,
The flow rate adjusting means is operated in accordance with the temperature of the air blown out from the blowing section ,
The suction portion has an inner suction portion and an outer suction portion on the occupant side in the width direction of the seat,
The air conditioner for a vehicle , wherein the flow rate adjusting means is capable of adjusting a suction amount of the inner suction portion and a suction amount of the outer suction portion .   The vehicle air conditioner according to claim 1, further comprising a control unit that controls the flow rate adjusting unit based on a temperature of air blown from the blowout unit. A circulating air passage connecting the suction section and the blowing section;
The vehicle air conditioner according to claim 1, wherein the air sucked in from the suction part is blown out from the blowout part through the circulation air passage. A circulating air passage connecting the suction section and the blowing section;
The air conditioner for a vehicle according to claim 2, wherein the air sucked in from the suction part is blown out from the blowing part through the circulation air passage. Heating means disposed in the circulation air passage to heat air blown out from the blow-out portion,
Cooling means arranged in the circulation air passage to cool air blown out from the blow-out portion,
The control unit increases the suction amount of the inner suction unit more than the suction amount of the outer suction unit during cooling in which cooling by the cooling unit is performed, and increases the suction amount of the inner suction unit during heating in which heating by the heating unit is performed. The vehicle air conditioner according to claim 4 , wherein a suction amount of the outer suction portion is larger than a suction amount of the portion. The flow rate adjusting device for a vehicle air conditioning system according to any one of claims 3 to claim 5, further comprising a closing member for adjusting a flow passage area by opening and closing the air circulation duct. The inner suction portion is disposed at an upper portion of a seat back or a headrest of the seat,
Said outer suction unit, air-conditioning system according to any one of claims 1 to claim 6, characterized in that it is disposed in an upper portion of the seat back. The flow rate adjusting device for a vehicle air conditioning system according to any one of claims 1 to claim 7, characterized in that it has a closing member for adjusting a flow passage area by opening and closing the suction unit. A seat cushion of a seat arranged in the vehicle or a blowing portion arranged below the seat cushion,
A plurality of suction portions respectively arranged at different positions in the width direction of the seat above or above the height of the shoulder portion of the occupant sitting on the seat,
Flow rate adjustment means capable of adjusting the suction amount of at least one of the suction portions and the suction amount of the other suction portions,
The flow rate adjusting means is operated in accordance with the temperature of the air blown out from the blowing section,
The air conditioner for a vehicle according to claim 1, wherein the flow rate adjusting means includes an opening / closing member for opening / closing the suction section to adjust a flow path area. The air conditioner for a vehicle according to claim 9, further comprising a control unit configured to control the flow rate adjusting unit based on a temperature of air blown from the blowing unit. A circulating air passage connecting the suction section and the blowing section;
The vehicle air conditioner according to claim 9 or 10, wherein the air sucked in from the suction part is blown out from the blowout part through the circulation air passage. The vehicle air conditioner according to claim 11, wherein the flow rate adjusting means includes an opening / closing member that opens and closes the circulating air passage to adjust a flow passage area.

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