JP2019127229A - Vehicle air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner for a vehicle capable of effectively giving a seated person coolness and warmth with a small energy consumption. SOLUTION: A vehicle air-conditioning device 20 has an air-conditioning unit 21 that regulates the temperature of air and blows the temperature-controlled air, and an air-conditioning duct 23 that forms an air flow passage 22 blown by the air-conditioning unit 21. , The air-conditioned air outlet 32 formed on the headrest 13 of the vehicle seat 10 through which the flow passage 22 communicates, so that the air-conditioned air outlet 32 blows air toward the face of the occupant seated on the vehicle seat 10. It is provided in. This makes it possible to effectively give the seated person coolness and warmth with less energy consumption. [Selection diagram] Fig. 2

Description

  The present disclosure relates to a vehicle air conditioner.

  In order to save power and improve comfort of a vehicle air conditioner, a plurality of air outlets that blow air conditioned air toward the occupant and an air conditioning unit that blows temperature-controlled air conditioned toward the air outlet It is known that each air conditioning unit is disposed so as to operate independently in sheet units (Patent Document 1). In this vehicle air conditioner, the headrest is provided with a head outlet that can blow out toward the head of the passenger. At the cool-down control, the air volume from the head outlet is maximized, and the rest is blown out from the upper body outlet.

  Similarly, in a seat air conditioner equipped with an air outlet provided in the headrest, the air outlet blows air toward the surface of the neck of the seated person in order to give a sufficient awakening stimulus to the seated person to prevent falling asleep. It is known that an air blowout nozzle is formed so as to blow out (Patent Document 2).

Unexamined-Japanese-Patent No. 2006-131106 Japanese Patent Application Publication No. 2007-106360

  However, in the vehicle air conditioner described in Patent Document 1, since the cooled conditioned air is blown out toward the head, the occupant cannot feel cold on the skin of the head when the occupant's hair is long. Also, in the seat air conditioner described in Patent Document 2, if the passenger's hair is long, the blown air blown toward the seated person's neck surface may be blocked by the hair and may not reach the neck skin directly, The occupant can not feel cold on the skin of the neck muscles. When the occupant's hair is short, the blown air reaches the skin of the occupant's neck, but the air blowout nozzle is formed by the air blast nozzle for the purpose of promoting the driver's awakening. Although tactile stimulation can be applied to the neck muscles with high stimulation sensitivity, it is not possible to give coolness or warmth to the seated person.

  An object of the present invention is to provide a vehicular air-conditioning system capable of providing coolness and warmth effectively to a seated person with less energy consumption.

  In order to solve such a problem, an embodiment of a vehicle air conditioner (20) according to the present invention includes an air conditioning unit (21) for adjusting the temperature of air and blowing the temperature-adjusted air, An air conditioning duct (23) that forms a flow path (22) of air blown by the air conditioning unit and the flow path communicate with each other, and an air conditioning wind outlet (32) formed in the headrest (13) of the vehicle seat (10). ), And the air-conditioning air outlet is provided so as to blow out air toward the face of the occupant seated on the vehicle seat.

  According to this configuration, the air whose temperature is adjusted by the air conditioning unit is blown out from the air-conditioning air outlet toward the face of the occupant seated, so that it is possible to effectively give coolness and warmth to the seated person with less energy consumption. it can.

  Further, in the above configuration, the air conditioning air outlet (32) may be provided to blow air toward the surroundings of the ears of the occupant seated on the vehicle seat (10).

  According to this configuration, since the conditioned air blown out from the conditioned wind outlet does not directly hit the seated person's ear, the wind noise heard by the seated person can be reduced.

  In the above configuration, the headrest (13) has left and right side extension parts (27) extending forward, and the vehicle seat (10) is provided at each side extension part. A through-hole (27a) penetrating left and right is formed in a portion corresponding to the ear of the passenger seated on the air-conditioner, and the air-conditioning air outlet (32) may be formed of a slit formed in an annular shape around the through-hole. .

  According to this configuration, the conditioned air is blown out from the conditioned air blowout port formed of the annular slit, so that the air pulled by the conditioned air is blown around the ears of the seated person through the through hole. Since this air flows slowly through the entire through hole, the air flow like a natural wind can be applied to the periphery of the seated person's ear without excessively feeling tactile stimulation or wind noise.

  In the above configuration, the vehicle seat (10) is provided on the floor (7) of the vehicle body (2) so as to be slidable in the front-rear direction, and the air conditioning unit (21) is provided with the seat cushion (11) of the vehicle seat. It is good to be provided integrally in the lower part of.

  According to this configuration, when the seated person slides the vehicle seat in the front-rear direction, the air conditioning unit also moves together with the vehicle seat, so that the air conditioning duct is not deformed and the flow of the conditioned air flowing through the flow passage is obstructed. It will not be done. Therefore, coolness and warmth can be effectively given to a seated person with less energy consumption.

  In the above configuration, the headrest (13) is provided on the seat back (12) of the vehicle seat (10) so as to be vertically displaceable, and the air conditioning duct (23) is at the height of the headrest. It is preferable to have a length adjustment mechanism (40) capable of changing the path length of the flow passage (22) accordingly.

  According to this configuration, the air-conditioning air outlet can be set at an appropriate position according to the physique (sitting height) of the occupant seated on the vehicle seat.

  As described above, according to the present invention, it is possible to provide a vehicle air conditioner capable of providing coolness and warmth effectively to a seated person with less energy consumption.

Principal part longitudinal cross-sectional view of a vehicle equipped with a vehicle air conditioner according to the first embodiment Top perspective view of the vehicle seat shown in FIG. 1 Top side view of the vehicle seat shown in FIG. 1 IV-IV sectional view in FIG. 3 Upper perspective view of a vehicle seat equipped with a vehicle air conditioner according to the second embodiment

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First Embodiment
First, the first embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a longitudinal sectional view of an essential part of an automobile 1 equipped with a vehicle air conditioner 20 according to the first embodiment. As shown in FIG. 1, the automobile 1 includes an engine room 3 formed at the front part by a vehicle body 2 and a vehicle room 4 formed at the rear of the engine room 3 by the vehicle body 2. The engine room 3 may be equipped with an engine or may not be equipped with an engine. For example, when the vehicle 1 is an electric vehicle, a power control unit, a heat exchanger, and the like are mounted in the engine room 3 and a motor that forms the engine may not be mounted.

  A windshield glass 5 is provided on the upper front of the vehicle body 2. A dashboard 6 is provided at the front of the cabin 4 so as to project rearward from the lower end of the windshield glass 5. At the rear of the dashboard 6, the left and right vehicle seats 10 slidably mounted in the front-rear direction on the floor 7 of the vehicle body 2 via a slide mechanism are disposed. The left and right vehicle seats 10 form a driver's seat and a front passenger's seat of the automobile 1. The dashboard 6 is overhanging rearward relative to the floor 7. By forming a space below the dashboard 6, an occupant (hereinafter referred to as a seated person) seated on the vehicle seat 10 can extend his / her leg.

  In the illustrated example, only the left and right vehicle seats 10 are provided in the passenger compartment 4 of the automobile 1, but the left and right vehicle seats 10 form front seats, and the second and third rows behind the front seats A back seat of the eye may be provided.

  The vehicle seat 10 includes a seat cushion 11 supported on the floor 7 via a slide mechanism, and a seat back 12 attached to the rear portion of the seat cushion 11 so as to be tiltable by a reclining mechanism. A headrest 13 disposed at a height corresponding to the seated person's head is integrally provided at the upper end of the seat back 12.

  The automobile 1 is provided with a vehicle air conditioner 20 that air-conditions the passenger compartment 4. The vehicle air conditioner 20 includes an air conditioning unit 21 provided integrally with the lower portion of the seat cushion 11. The air conditioning unit 21 regulates the temperature of the air, and blows the temperature-controlled air into an air flow passage 22 formed inside the vehicle seat 10. The flow passage 22 is formed by the seat cushion 11 of the vehicle seat 10, the seat back 12, and the air conditioning duct 23 provided inside the headrest 13.

  The air blown into the flow passage 22 blows conditioned air from the outlets formed in the seat cushion 11, the seat back 12 and the headrest 13 to the seated person. That is, the vehicle air conditioner 20 provides a local cooling / heating function for the seated person by directly blowing the conditioned air from the air outlet formed in the vehicle seat 10 to the seated person.

  The air conditioning unit 21 may be an HVAC system (heating ventilation air conditioning system) that performs heating, ventilation, and air conditioning of the passenger compartment 4.

  A flow path switching damper (not shown) is provided in the flow path 22, and the air outlet to which the temperature-controlled air is sent is switched by the control device of the air conditioning unit 21 controlling the flow path switching damper. For example, the control device of the air conditioning unit 21 controls the flow path switching damper so as to send the conditioned air to the upper surface of the seat cushion 11, the seat back 12 and the air outlet of the headrest 13 at the time of cooling. The flow path switching damper is controlled so as to send the conditioned air to the feet and the upper surface and the air outlet of the seat back 12. Alternatively, the control device of the air conditioning unit 21 may control the flow path switching damper so as to send the conditioned air also to the outlet of the headrest 13 at the time of heating.

  2 is a top perspective view of the vehicle seat 10, and FIG. 3 is a top side view of the vehicle seat 10 shown in FIG. As shown in FIGS. 2 and 3, the headrest 13 includes a headrest main body 26 extending in the vertical and horizontal directions, and left and right side extensions extending forward from the left and right side portions of the headrest main body 26. And a unit 27. Each side portion extending portion 27 is formed with a through hole 27a penetrating left and right in a portion corresponding to the seated person's ear. The through hole 27a has a larger diameter (for example, 10 cm or more) than a seated person's ear (general adult ear).

  FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. As shown in FIGS. 2 to 4, the side extension 27 is provided so as to cover the frame 28 (FIG. 4) made of a U-shaped steel pipe member convex toward the front and the frame 28. The cushioning material 29 has a skin material 30 covering the cushioning material 29, and a cylindrical resin duct member 31 provided inside the frame 28 to form the through hole 27a. The duct member 31 is a hollow cylindrical member that forms a part of the air-conditioning duct 23 that forms the flow passage 22 therein, and has an inner thickness in the sheet width direction as compared with an outer thickness (a radial thickness) in the sheet width direction. Has a thin airfoil cross-sectional shape.

  An air-conditioning air outlet 32 that communicates with the flow passage 22 and opens toward the inside (center side) of the vehicle seat 10 is formed on the inner surface of the duct member 31, that is, around the through hole 27a. The air-conditioning air outlet 32 is formed of a slit annularly formed around the through hole 27a, and blows the air-conditioning air toward the periphery of the seat occupant's ear. The conditioned air blown from the rear part of the conditioned air outlet 32 is blown to the occupant's back and neck. The conditioned air blown out from the front of the conditioned air outlet 32 is blown to the face of the occupant.

  As described above, the air-conditioning air outlet 32 is formed of a slit formed in an annular shape around the through hole 27a, so that the surrounding air (air outside the seat of the side extension 27) is seated from the air-conditioning air outlet 32. It is pulled by the conditioned air blown out toward the head, passes through the through hole 27a, and is blown to the seated person.

  Thus, in the vehicle air conditioner 20 according to the embodiment, the air-conditioning air outlet 32 is provided so as to blow out air toward the face of the seated person, and the air whose temperature is adjusted by the air-conditioning unit 21 is supplied from the air-conditioning air outlet 32. Since it blows out toward the seated person's face, it can effectively give the seated person coolness and warmth with less energy consumption.

  Since the air-conditioning air outlet 32 is provided so as to blow out air around the ears of the seated person, the air-conditioned air blown from the air-conditioned air outlet 32 does not directly hit the ears of the seated person, but the wind that can be heard by the seated person Noise is reduced.

  As described above, the headrest 13 has the left and right side extension portions 27 extending forward, and each side extension portion 27 has a portion corresponding to the ear of the seated person on the left and right sides. A penetrating through hole 27a is formed, and the air-conditioning air outlet 32 is formed of a slit formed in an annular shape around the through hole 27a. As a result, the conditioned air is blown out from the conditioned air outlet 32 formed of an annular slit, whereby the air pulled by the conditioned air is blown around the ears of the seated person through the through hole 27a. Since this air flows through the through hole 27a in a relaxed manner, the air flow like natural wind strikes around the ears of the seated person without excessively feeling tactile stimulation or wind noise.

  Further, since the headrest 13 has the left and right side extension portions 27, the left and right visibility of the seated person is deteriorated. However, since the through hole 27a is formed in the side portion extension portion 27, the seated person penetrates. Left and right views can be secured through the holes 27a.

  In the present embodiment, the vehicle seat 10 is provided on the floor 7 of the vehicle body 2 so as to be slidable in the front-rear direction, and the air conditioning unit 21 is provided integrally below the seat cushion 11 of the vehicle seat 10. When a person slides the vehicle seat 10 in the front-rear direction, the air conditioning unit 21 also moves along with the vehicle seat 10. Therefore, the air conditioning duct 23 is not deformed, and the flow of the conditioned air flowing through the flow passage 22 is not hindered. Therefore, coolness and warmth can be effectively given to a seated person with less energy consumption.

Second Embodiment
Next, a second embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the element similar to 1st Embodiment, and the overlapping description is abbreviate | omitted.

  FIG. 5 is a top perspective view of the vehicle seat 10 on which the vehicle air conditioner 20 according to the second embodiment is mounted. As shown in FIG. 5, in the present embodiment, the headrest 13 of the vehicle seat 10 is provided on the seatback 12 so as to be displaceable in the vertical direction. The structure which couple | bonds the headrest 13 with the seat back 12 so that displacement is possible may be a well-known structure.

  The air conditioning duct 23 includes a length adjustment mechanism 40 that can change the path length of the flow passage 22 according to the height of the headrest 13. The adjustment mechanism 40 includes a lower duct member 41 provided integrally with the seat back 12 in parallel with the moving direction of the headrest 13, and an upper portion provided integrally with the headrest 13 and slidably inserted into the lower duct member 41. A duct member 42 is provided, which allows the upper duct member 42 to slide relative to the lower duct member 41 when the height of the headrest 13 is adjusted.

  With the vehicle air conditioner 20 configured in this manner, the air conditioning air outlet 32 can be set at an appropriate position according to the physical size (seat height) of the seat occupant.

  Although the description of the specific embodiment is finished above, the present invention can be widely modified and implemented without being limited to the above embodiment. For example, in the said embodiment, although the vehicle air conditioner 20 which concerns on this invention is applied to the front seat of the motor vehicle 1, the vehicle air conditioner 20 may be applied to a rear seat. Moreover, in the said embodiment, although the air conditioning unit 21 has a cooling function and a heating function, you may have only any one function. In addition, the specific configuration and arrangement of each member or portion, the number, the material, and the like can be appropriately changed without departing from the scope of the present invention. On the other hand, not all the constituent elements shown in the above embodiment are necessarily essential, and can be appropriately selected.

DESCRIPTION OF SYMBOLS 1 Car 2 Car body 7 Floor 10 Vehicle seat 11 Seat cushion 12 Seat back 13 Headrest 20 Vehicle air conditioner 21 Air conditioning unit 22 Flow path 23 Air conditioning duct 26 Headrest main body 27 Side extension 27a Through hole 31 Duct member 32 Air conditioning wind blow Exit 40 length adjustment mechanism

Claims (5)

An air conditioning unit that regulates the temperature of the air and blows the temperature-controlled air;
An air conditioning duct forming a flow passage of the air blown by the air conditioning unit;
An air-conditioning vent provided in the headrest of the vehicle seat in communication with the flow passage;
The vehicle air conditioner is characterized in that the air-conditioning air outlet is provided so as to blow air toward the face of an occupant seated on the vehicle seat.   2. The vehicle air conditioner according to claim 1, wherein the air-conditioning air outlet is provided so as to blow out air around a passenger's ear seated on the vehicle seat. The headrest has left and right side extension portions extending forward, and each side portion extension portion penetrates left and right through a portion corresponding to an occupant's ear seated on the vehicle seat. Through-holes are formed,
The vehicle air conditioner according to claim 2, wherein the air-conditioning air outlet comprises a slit formed in an annular shape around the through hole. The vehicle seat is provided slidably on the floor of the vehicle body in the front-rear direction,
The vehicle air conditioner according to any one of claims 1 to 3, wherein the air conditioning unit is integrally provided at a lower portion of a seat cushion of the vehicle seat. The headrest is vertically movably provided on a seat back of the vehicle seat,
4. The vehicle according to claim 1, wherein the air conditioning duct includes a length adjusting mechanism capable of changing a path length of the flow passage according to a height of the headrest. Air conditioner.

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